Patent Description:
In an existing elevator system, one of the common modes of elevator calling operation is: a passenger manually presses a certain elevator calling button on an elevator calling control panel mounted in an elevator landing area to input an elevator calling request command for traveling upward or traveling downward, and then, after entering a certain elevator car, the passenger manually presses a certain floor button on a target floor registration control panel mounted in each elevator car to input a target floor. Such an elevator calling operation mode needs to be completed through manual operations; moreover, especially when the passenger's hands are incapable of performing the above-mentioned button press operation freely (for example, the passenger is carrying stuff with both hands, or the passenger has difficulty in walking and is sitting in a wheelchair), the elevator calling operation becomes difficult, affecting the passenger's experience. <CIT> describes a system and method for initiating a hall call indicating a direction of travel, and a car call indicating a destination floor, in an elevator system from a mobile device. <CIT> describes a secure access system and method in which a secure card is used to communicate with sensors exterior to, and inside of, an elevator car in order to request access to an authorized floor.

According to a first aspect of the present invention, there is provided an elevator system according to claim <NUM>.

According to a second aspect of the present invention, there is provided a communication method according to claim <NUM>.

In one or more embodiments, the communication method further comprising steps of:.

A personal mobile terminal suitable for use in the present invention is configured to be able to receive a first bluetooth signal broadcasted by a first bluetooth module mounted in an elevator landing area of the elevator system and be able to receive a second bluetooth signal broadcasted by a second bluetooth module mounted in an elevator car of the elevator system, wherein the personal mobile terminal includes:.

According to the description and accompanying drawings below, the above features and operations of the present invention will become more obvious.

The detailed description below in conjunction with the accompanying drawings will make the above-mentioned and other objects and advantages of the present invention more complete and clearer, wherein identical or similar elements are expressed in identical labels.

The present invention will now be described more completely with reference to the accompanying drawings, where exemplary embodiments of the present invention are shown. However, the present invention can be implemented in many different forms and should not be understood as limitations to the embodiments elaborated here. On the contrary, these embodiments are provided so that the present disclosure becomes more thorough and complete, and fully conveys the concept of the present invention to a person skilled in the art.

Some block diagrams shown in the accompanying drawings are functional entities and are not necessarily corresponding to physically or logically independent entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different processing apparatuses and/or microcontroller apparatuses.

<FIG> shows a schematic diagram of a communication system for use in an elevator system according to one embodiment of the present invention. The communication system of the embodiments of the present invention is described below in conjunction with the application scenarios of <FIG> and <FIG>.

The communication system <NUM> of the embodiments of the present invention is applied in a building which is mounted with an elevator system <NUM>. The elevator system <NUM> includes a plurality of elevator cars <NUM> traveling up and down in hoistways of the building. <FIG> shows two of the elevator cars, i.e., <NUM>-<NUM> and <NUM>-<NUM>. The traveling or stopping of each elevator car <NUM> in the hoistways, namely each elevator car <NUM>, is controlled by an elevator controller <NUM> in the elevator system <NUM>, the particular control mode or control principle of the elevator controller <NUM> over one or more elevator cars <NUM> is not restrictive, and the particular structure or arrangement manner, etc. of the elevator controller <NUM> is not restrictive either. Generally, the elevator controller <NUM> needs to acquire an elevator calling request command from each elevator landing area <NUM>, and acquire target floor registration information about a passenger, so as to control the operation of the elevator based on them, for example, performing scheduling control over each elevator car <NUM>.

In order to acquire the elevator calling request command from each elevator landing area <NUM>, a first bluetooth module <NUM> is arranged in the communication system <NUM>; the first bluetooth module <NUM> can be mounted in each elevator landing area <NUM> of the elevator system <NUM> (as shown in <FIG>), for example, the first bluetooth module <NUM>-<NUM> is mounted in the elevator landing area <NUM>-<NUM>, the first bluetooth module <NUM>-<NUM> is mounted in the elevator landing area <NUM>-<NUM>, and the first bluetooth module <NUM>-<NUM> is mounted in the elevator landing area <NUM>-<NUM>. It should be understood that each elevator landing area <NUM> may be mounted with one or more first bluetooth modules <NUM>, so that the first bluetooth signal sent out by the first bluetooth module <NUM> can substantially effectively cover each elevator landing area <NUM>.

In one embodiment, the first bluetooth module <NUM> can be integratedly arranged in an elevator calling control panel <NUM> of the elevator system <NUM>, wherein the elevator calling control panel <NUM> is generally mounted at two sides of the landing door of the elevator landing area <NUM>, and the elevator calling control panel <NUM> can be provided with for example an "upward" or "downward" elevator calling button, so as to realize the manual input of an elevator calling request command based on the elevator calling control panel <NUM>. The particular integration and arrangement manner of the first bluetooth module <NUM> with respect to the elevator calling control panel <NUM> will be described thereafter in conjunction with <FIG>.

In one embodiment, the first bluetooth module <NUM> can particularly be a Bluetooth Low Energy (BLE) module. The first bluetooth signal broadcast or transmitted all along or persistently by the first bluetooth module <NUM> can substantially effectively cover the elevator landing area <NUM> where it is located. The first bluetooth signal can, for example, be correspondingly a BLE signal, which can include a wake-up signal for waking up a personal mobile terminal <NUM>, or further include a data signal that reflects a universally unique identifier (UUID) of the first bluetooth module <NUM> and/or the floor location information about where the first bluetooth module <NUM> is located. The particular signal form of the first bluetooth signal is not restrictive.

In one embodiment, each personal mobile terminal <NUM> is configured to be able to automatically wake up from a sleep mode based on the received wake-up signal. For example, when a passenger carrying a personal mobile terminal <NUM> walks towards the elevator landing area <NUM>, the personal mobile terminal <NUM> in a sleep mode will be able to receive a first bluetooth signal broadcasted by the first bluetooth module <NUM> (if the distance is close enough), especially a wake-up signal. At this moment, the personal mobile terminal <NUM> will be able to wake up from the sleep mode based on the wake-up signal, so as to make preparation for the automatic establishment of a first bluetooth connection.

It should be noted that when the personal mobile terminal <NUM> is in a sleep mode, it can receive a bluetooth signal, but it cannot automatically establish a bluetooth connection with the first bluetooth module <NUM>/second bluetooth module <NUM>, etc., and cannot automatically send an elevator calling request command or a target floor registration command either.

Each personal mobile terminal <NUM> can determine the signal strength of the first bluetooth signal received thereby, and in one embodiment, the personal mobile terminal <NUM> is configured with a received signal strength indicator (RSSI) for determining the signal strength of the first bluetooth signal or any other bluetooth signals received thereby.

In another embodiment, the first bluetooth module <NUM> may not broadcast a wake-up signal, and when the personal mobile terminal <NUM> cannot receive a wake-up signal, each personal mobile terminal <NUM> in sleep mode can also automatically wake up from a sleep mode when the signal strength of the first bluetooth signal received changes from relatively weak (e.g. <NUM>) to equal to or greater than a first strength value.

Generally, the signal strength of the first bluetooth signal attenuates with the broadcast distance thereof, and therefore, the personal mobile terminal <NUM> that receives the first bluetooth signal can substantially determine the distance from the personal mobile terminal <NUM> to the first bluetooth module <NUM> according to the signal strength of the first bluetooth signal. It is to be understood that the distance changes dynamically as the passenger walks in the elevator landing area <NUM>.

Again, as shown in <FIG> and <FIG>, the communication system <NUM> further includes a plurality of second bluetooth modules <NUM>, and each second bluetooth module <NUM> is mounted in each elevator car <NUM>, for example, one second bluetooth module <NUM>-<NUM> is arranged in the elevator car <NUM>-<NUM>, and one second bluetooth module <NUM>-<NUM> is arranged in the elevator car <NUM>-<NUM>. In one embodiment, the second bluetooth module is mounted on a target floor registration control panel <NUM> in the elevator car <NUM> (as shown in <FIG>) and is integratedly arranged on the target floor registration control panel <NUM>. The particular integration and arrangement manner of the second bluetooth module <NUM> with regard to the target floor registration control panel <NUM> is described thereafter in conjunction with <FIG>.

The second bluetooth module <NUM> can particularly be a Bluetooth Low Energy (BLE) module. The second bluetooth signal broadcast or transmitted all along or persistently by the second bluetooth module <NUM> can substantially effectively cover the area in the elevator car <NUM> where it is installed. The first bluetooth signal can, for example, correspondingly be a bluetooth low energy signal, which can include a wake-up signal for waking up a personal mobile terminal <NUM> or can further include a data signal that reflects the UUID of the second bluetooth module <NUM> and/or the floor location information about where the second bluetooth module <NUM> is located. The particular signal form of the second bluetooth signal is not restrictive. However, it should be understood that it is possible to distinguish the second bluetooth signal from the first bluetooth signal by setting the particular signal form and/or signal strength of the second bluetooth signal and enable the personal mobile terminal <NUM> that receives the first bluetooth signal and/or the second bluetooth signal to distinctively recognize them.

Each personal mobile terminal <NUM> can determine the signal strength of the second bluetooth signal received thereby, and in one embodiment, the personal mobile terminal <NUM> is configured with a received signal strength indicator (RSSI) for determining the signal strength of the second bluetooth signal or any other bluetooth signals received thereby. Generally, the signal strength of the second bluetooth signal attenuates with the broadcast distance thereof, and therefore, the personal mobile terminal <NUM> that receives the second bluetooth signal can substantially determine the distance from the personal mobile terminal <NUM> to the second bluetooth module <NUM> according to the signal strength of the second bluetooth signal. It is to be understood that the distance changes dynamically as the passenger walks into the elevator car <NUM>.

It should be noted that each first bluetooth module <NUM> and second bluetooth module <NUM> in the communication system <NUM> are coupled to an elevator controller <NUM>, for example, they are coupled to the elevator controller <NUM> respectively through the elevator calling control panel <NUM> and the target floor registration control panel <NUM>; therefore, the elevator calling request command and the elevator calling request command respectively received by the first bluetooth module <NUM> and the second bluetooth module <NUM> can be transmitted to the elevator controller <NUM>.

Again, as shown in <FIG>, the communication system <NUM> further includes a personal mobile terminal <NUM> carried by a passenger, for example, personal mobile terminals <NUM>-<NUM> and <NUM>-<NUM> respectively carried by two passengers. Each personal mobile terminal <NUM> can establish a first bluetooth connection <NUM> with the first bluetooth module <NUM>, and each personal mobile terminal <NUM> can establish a second bluetooth connection <NUM> with the second bluetooth module <NUM>.

The personal mobile terminal <NUM> can be various smart terminals with a bluetooth connection function that are convenient for passengers to carry. For example, the personal mobile terminal <NUM> can be a smart phone, a wearable smart device (e.g., a smart bracelet), a personal digital assistant (PDA), etc., on which a corresponding application program (e.g. an APP) can be mounted to realize its function.

When a first bluetooth module <NUM> broadcasts a first bluetooth signal, a personal mobile terminal <NUM> carried by a passenger near the first bluetooth module <NUM> will be able to automatically receive the first bluetooth signal, and based on the first bluetooth signal, the personal mobile terminal <NUM> automatically establishes a first bluetooth connection <NUM> with the corresponding first bluetooth module <NUM>; moreover, when establishing the first bluetooth connection, the personal mobile terminal <NUM> sends an elevator calling request command regarding an elevator calling direction (e.g., a " travel upward" or " travel downward" elevator calling request command), the first bluetooth module <NUM> receives the elevator calling request command regarding the elevator calling direction sent from the personal mobile terminal <NUM>, and the first bluetooth module <NUM> can further send the elevator calling request command to the elevator controller <NUM>, so that the elevator controller <NUM> controls the running of one or more elevator cars <NUM> in the elevator system <NUM> based on the elevator calling request command. The elevator calling request command automatically sent by the personal mobile terminal <NUM> can replace the elevator calling request command inputted by manually pressing the elevator calling button; moreover, the above process can be automatically realized without the need for the passenger to operate the personal mobile terminal <NUM> and is easy and convenient to realize.

Taking the application scenario shown in <FIG> as an example, when two passengers, for example, enters the elevator landing area <NUM> (e.g., a waiting area in a lobby), the personal mobile terminal <NUM>-<NUM> or <NUM>-<NUM> (e.g. a cell phone, whether in hand or in a hand bag) carried by them will automatically sense a first bluetooth signal sent by a first bluetooth module <NUM> mounted in the elevator landing area <NUM> (the personal mobile terminal <NUM>-<NUM> or <NUM>-<NUM> is close enough to the first bluetooth module <NUM>), and thus establish a handshake connection with the first bluetooth module <NUM> based on the first bluetooth signal, namely establishing a first bluetooth connection <NUM>; the personal mobile terminal <NUM>-<NUM> or <NUM>-<NUM> automatically sends an elevator calling request command regarding an elevator calling direction, and thus automatically completes the elevator calling request command without the need for the passenger to manually press the elevator calling button mounted on the elevator calling control panel <NUM> or manually operate the personal mobile terminal <NUM>-<NUM> or <NUM>-<NUM>. Therefore, the present invention realizes that a passenger automatically inputs an elevator calling request command in the elevator system <NUM> in a hand free mode, greatly enhancing the passenger's experience.

It should be noted that each first bluetooth module <NUM> establishes a first bluetooth connection <NUM> with only one personal mobile terminal <NUM> at a certain moment, and each first bluetooth module <NUM> can successively establish a first bluetooth connection <NUM> with personal mobile terminals <NUM> carried by a plurality of passengers near the first bluetooth module <NUM>. After establishing a first bluetooth connection <NUM> with the first bluetooth module <NUM> and sending a corresponding elevator calling request command, each personal mobile terminal <NUM> will actively disconnect the first bluetooth connection <NUM> so as to make preparation for the automatic establishment of a first bluetooth connection <NUM> between the first bluetooth module <NUM> and the personal mobile terminal <NUM> of the next passenger. The first bluetooth module <NUM> is configured to return a first confirmation message to a corresponding personal mobile terminal <NUM> after receiving an elevator calling request command, and the first confirmation message indicates that the elevator calling request command is successfully accepted by the elevator system <NUM>; and the personal mobile terminal <NUM> is configured to actively disconnect the first bluetooth connection <NUM> based on the first confirmation message received.

It should be noted that the "elevator calling request command regarding an elevator calling direction" does not contain the target floor information about the passenger, or the target floor information is not recognized or used by the elevator controller <NUM> even if it is contained. Therefore, in one embodiment of the present invention, a second bluetooth connection with the personal mobile terminal <NUM> is also established in dependence on the second bluetooth module <NUM>.

Again, as shown in <FIG>, when a second bluetooth module <NUM> broadcasts a second bluetooth signal, a personal mobile terminal <NUM> carried by a passenger near the second bluetooth module <NUM> will continue to be able to automatically receive the second bluetooth signal (at this moment, the first bluetooth connection previously established between the personal mobile terminal <NUM> and the first bluetooth module <NUM> has already been disconnected), and based on the second bluetooth signal, the personal mobile terminal <NUM> automatically establishes a second bluetooth connection <NUM> with the corresponding second bluetooth module <NUM>; moreover, when establishing the second bluetooth connection <NUM>, the personal mobile terminal <NUM> sends a target floor registration command about target floor information, the second bluetooth module <NUM> receives an elevator calling request command regarding an elevator calling direction sent from the personal mobile terminal <NUM>, and the second bluetooth module <NUM> can further send the target floor registration command to the elevator controller <NUM>, so that the elevator controller <NUM> controls the running of one or more elevator cars <NUM> in the elevator system <NUM> based on the target floor registration command. The target floor registration command automatically sent by the personal mobile terminal <NUM> can replace the target floor registration command inputted by manually pressing the floor button; moreover, the above process can be automatically realized without the need for the passenger to operate the personal mobile terminal <NUM>, and is likewise easy and convenient to realize.

Taking the application scenario shown in <FIG> as an example, when a passenger enters the elevator car <NUM> for example, the personal mobile terminal <NUM> (e.g. a cell phone, whether in hand or in a hand bag) carried by him will automatically sense a second bluetooth signal sent by a second bluetooth module <NUM> mounted on the elevator car <NUM>, and thus establish a handshake connection with the second bluetooth module <NUM> based on the second bluetooth signal, namely establishing a second bluetooth connection <NUM>; the personal mobile terminal <NUM> automatically sends a target floor registration command containing target floor information, and thus automatically completes the target floor registration command without the need for the passenger to manually press the floor button mounted on the target floor registration control panel <NUM> or manually operate the personal mobile terminal <NUM>. Therefore, the present invention realizes that a passenger automatically inputs a target floor registration command in the elevator system <NUM> in a hand free mode, greatly enhancing the passenger's experience.

It should be noted that each second bluetooth module <NUM> establishes a second bluetooth connection <NUM> with only one personal mobile terminal <NUM> at a certain moment, and each second bluetooth module <NUM> can successively establish a second bluetooth connection <NUM> with personal mobile terminals <NUM> carried by a plurality of passengers near the second bluetooth module <NUM>. After establishing a second bluetooth connection <NUM> with the second bluetooth module <NUM> and sending a corresponding target floor registration command, each personal mobile terminal <NUM> will actively disconnect the second bluetooth connection <NUM> so as to make preparation for the establishment of a second bluetooth connection <NUM> between the second bluetooth module <NUM> and the personal mobile terminal <NUM> of the next passenger. In one embodiment, the second bluetooth module <NUM> is configured to return a second confirmation message to a corresponding personal mobile terminal <NUM> after receiving the target floor registration command, and the second confirmation message indicates that the target floor registration command is successfully accepted by the elevator system <NUM>; and the personal mobile terminal <NUM> is configured to actively disconnect the second bluetooth connection <NUM> based on the second confirmation message received.

It should be understood that the above-mentioned process from establishing a first bluetooth connection to disconnecting the first bluetooth connection can be completed in a short time, and likewise, the above-mentioned process from establishing a second bluetooth connection to disconnecting the second bluetooth connection can also be completed in a short time, for example within a time range in the order of magnitude of milliseconds, so that one first bluetooth module <NUM> or second bluetooth module <NUM> can successively achieve a first bluetooth connection or a second bluetooth connection with many personal mobile terminals <NUM> in a short time, and the many personal mobile terminals <NUM> can complete an elevator calling operation substantially at the same time in a short time period.

It can be known in conjunction with the application scenarios shown in <FIG> and <FIG> that in the process that a certain passenger enters the lobby of a building and arrives at a target floor, as long as he/she carries a personal mobile terminal <NUM>, he/she can take an elevator to the target floor without performing any operation, thereby greatly enhancing the passenger's experience.

It should be further noted that in the communication system <NUM> of the embodiments of the present invention, an elevator calling request command regarding an elevator calling direction and a target floor registration command are successively sent through a personal mobile terminal <NUM>; moreover, they are also respectively transmitted to the first bluetooth module <NUM> and the second bluetooth module <NUM> successively based on the automatically established first bluetooth connection <NUM> and second bluetooth connection <NUM>, realizing the separate operation of the input of the elevator calling request command regarding the elevator calling direction and the input of the target floor registration command. This elevator calling operation mode realized in the communication system <NUM> distinctively differs from another elevator calling operation mode, that is, automatically sending or automatically inputting an elevator calling request command regarding an elevator calling direction and target floor information once at the same time. In this elevator calling operation mode realized by the communication system <NUM> of the present application, when the elevator controller <NUM> of the elevator system <NUM> is performing scheduling control, it will not be and is not necessarily limited to assign a certain specified elevator car <NUM> to a passenger corresponding to a certain personal mobile terminal <NUM>; therefore, when the passenger is waiting for an elevator at a certain elevator landing area <NUM>, he/she will not need to take out the personal mobile terminal <NUM> to watch it and learn serial number information, etc. about the assigned elevator car <NUM>, and as long as an elevator car <NUM> of which the running direction is consistent with the elevator calling direction arrives and the passenger walks in the elevator car <NUM>, the registration of the target floor can be automatically realized. The whole process of taking the elevator completely eliminates the need for hand operation and fully realizes the effect of hand free.

While as a comparison, another elevator calling operation mode mentioned above obviously has the following deficiencies relative to the present application: in the first aspect, the elevator controller needs to perform scheduling control to assign a specified elevator car for the passenger and automatically register the target floor in the elevator car, and therefore, the serial number of a certain elevator car assigned needs to be sent to the passenger, and the passenger needs to watch and learn the serial number information about the assigned elevator car <NUM>, thereby guiding the passenger to walk into the corresponding assigned elevator car, which has a high demand on the passenger but also realizes the effect of hand free; in the second aspect, once the passenger walks into a wrong elevator car (i.e., having failed to take the specified elevator car, which is easy to happen), the passenger needs to input target floor information by manually pressing the floor button in the elevator car, which is difficult to actually realize the effect of hand free; and in the third aspect, once the passenger walks into a wrong elevator car, the specified elevator car has already been registered with a target floor, and the specified elevator car will continue to operate according to the originally registered target floor information, enormously affecting the overall operating efficiency of the elevator system.

Moreover, the elevator system <NUM> of the embodiments of the present invention can be conveniently realized by reconstructing an existing elevator system, and has a low reconstruction cost, for example, arranging a first bluetooth module <NUM> of the present application on the elevator calling control panel by way of expansion, and arranging a second bluetooth module <NUM> of the present application on the target floor registration control panel by way of expansion, which can rapidly realize the reconstruction of an existing elevator with low costs. Below is the specific description of how to arrange the first bluetooth module <NUM> and the second bluetooth module <NUM> in the communication system <NUM> of the present invention in conjunction with <FIG> and <FIG>.

Referring to <FIG>, the first bluetooth module <NUM> of the embodiments of the present invention is integrated on the elevator calling control panel <NUM> of an elevator <NUM>. The elevator calling control panel <NUM> is generally mounted in the elevator landing area <NUM>, and in one embodiment, the elevator calling control panel <NUM> is connected with the elevator controller <NUM> via a bus, and an RSL (Remote Serial Link) communication connection is established between the elevator calling control panel <NUM> and the elevator controller <NUM> of the elevator system <NUM> based on, for example but not limited to, the RSL protocol; correspondingly, for example an RSL processor <NUM> can be arranged in the elevator calling control panel <NUM>, and the RSL processor <NUM> can not only receive an elevator calling request command from the first bluetooth module <NUM>, but also can receive an elevator calling request command corresponding to pressing an elevator calling button on the elevator calling control panel <NUM>, and the elevator calling request command is processed according to the RSL protocol and then sent to the elevator controller <NUM>.

The first bluetooth module <NUM> can particularly be realized by a bluetooth processor <NUM>, a memory <NUM> and a bluetooth antenna <NUM>, etc. The bluetooth antenna <NUM> can be used for receiving and broadcasting a bluetooth signal (for example, broadcasting a first bluetooth signal), and a filter <NUM> can be arranged between the bluetooth antenna <NUM> and the bluetooth processor <NUM> to filter the bluetooth signals. A corresponding program module can be configured or mounted on the memory <NUM> to realize the function of the first bluetooth module <NUM> of the present invention, and the memory <NUM> can also set or store, for example, the UUID of the first bluetooth module <NUM> and/or the floor location information about where the first bluetooth module <NUM> is located, etc. The bluetooth processor <NUM> of the first bluetooth module <NUM> can establish a corresponding communication connection with the RSL processor <NUM> of the elevator calling control panel <NUM> while working, for example a serial port connection established based on a Universal Asynchronous Receiver/Transmitter (UART). When the first bluetooth module <NUM> is working, the bluetooth processor <NUM> and the RSL processor <NUM> shake hands and constantly perform communication connection verification. As such, an elevator calling request command obtained by the first bluetooth module <NUM> can be transmitted, in real time, to the RSL processor <NUM> of the elevator calling control panel <NUM> for processing, and then be sent, in real time, to the elevator controller <NUM>. It is to be understood that when transmitting the elevator calling request command to the RSL processor <NUM>, the first bluetooth module <NUM> can also transmit, for example, the UUID and/or floor location information, etc. pre-stored in the memory <NUM>.

In one embodiment, the elevator calling request command, etc. received by the first bluetooth module <NUM> can be recorded in the memory <NUM>, the bluetooth processor <NUM> of the first bluetooth module <NUM> can send out an instruction to the RSL processor <NUM>, and then further to the elevator controller <NUM>, so as to read information stored in the elevator controller <NUM> or the elevator system <NUM>, e.g., running state information, running historical status information, repairing or maintenance record information, and so on, which can be the results of beforehand analysis and processing; after obtaining these pieces of information, the first bluetooth module <NUM> can wirelessly transmit these pieces of information to a digital terminal (which can be for example a cell phone, a personal digital assistant) carried by a staff such as a maintenance staff through the bluetooth antenna <NUM>, and at this moment, the digital terminal has already been authorized to establish a bluetooth connection with the first bluetooth module <NUM>. Consequently, it is convenient for the maintenance staff to rapidly and conveniently acquire some information about the elevator system <NUM> at the elevator landing area <NUM>, for example, information required for daily maintenance work, information required for repairing the elevator, etc. Therefore, through the first bluetooth module <NUM> of the embodiments of the present invention integrated in the elevator calling control panel <NUM>, the information stored in the elevator system <NUM> can be conveniently acquired at the elevator landing area <NUM>, which is convenient for the daily maintenance or repairing of the elevator system <NUM>.

Referring to <FIG>, a second bluetooth module <NUM> of the embodiments of the present invention is integrated on the target floor registration control panel <NUM> of the elevator <NUM>. The target floor registration control panel <NUM> is generally mounted in the elevator car <NUM>, and in one embodiment, the target floor registration control panel <NUM> is connected with the elevator controller <NUM> via a bus, and an RSL (Remote Serial Link) communication connection is established between the target floor registration control panel <NUM> and the elevator controller <NUM> of the elevator system <NUM> based on, for example but not limited to, an RSL protocol; correspondingly, for example an RSL processor <NUM> can be arranged in the target floor registration control panel <NUM>, and the RSL processor <NUM> can not only receive a target floor registration command from the second bluetooth module <NUM>, but also can receive a target floor registration command corresponding to pressing a floor button on the target floor registration control panel <NUM>, and the target floor registration command is processed according to the RSL protocol and then sent to the elevator controller <NUM>. The second bluetooth module <NUM> can particularly be realized by a bluetooth processor <NUM>, a memory <NUM> and a bluetooth antenna <NUM>, etc. The bluetooth antenna <NUM> can be used for receiving and broadcasting a bluetooth signal (for example, broadcasting a first bluetooth signal), and a filter <NUM> can be provided between the bluetooth antenna <NUM> and the bluetooth processor <NUM> to filter the bluetooth signal. A corresponding program can be arranged or mounted on the memory <NUM> to realize the function of the second bluetooth module <NUM> of the present invention, and the memory <NUM> can also set or store, for example, the UUID of the second bluetooth module <NUM> and/or the elevator car where the second bluetooth module <NUM> is located, etc. The bluetooth processor <NUM> of the second bluetooth module <NUM> can establish a corresponding communication connection with the RSL processor <NUM> of the target floor registration control panel <NUM> while working, for example a serial port connection established based on a UART. When the second bluetooth module <NUM> is working, the bluetooth processor <NUM> and the RSL processor <NUM> shake hands and constantly perform communication connection verification. As such, a target floor registration command obtained by the second bluetooth module <NUM> can be transmitted, in real time, to the RSL processor <NUM> of the target floor registration control panel <NUM> for processing, and then be sent, in real time, to the elevator controller <NUM>.

<FIG> shows a flowchart of a communication method for performing an elevator calling operation according to one embodiment of the present invention. The communication method of the embodiments of the present invention is described below in conjunction with <FIG>. Also exemplified is how a passenger carrying a personal mobile terminal <NUM> performs an elevator calling operation based on the communication method.

Firstly, the passenger carrying the personal mobile terminal <NUM> enters a certain elevator landing area <NUM>, and the personal mobile terminal <NUM> approaches a first bluetooth module <NUM> mounted in the elevator landing area <NUM>. In this process, the personal mobile terminal <NUM> is in a sleep mode, and the personal mobile terminal <NUM> can constantly scan bluetooth signals, i.e., step S510. Moreover, whether a wake-up signal in a first bluetooth signal broadcasted by the first bluetooth module <NUM> mounted in the elevator landing area <NUM> is scanned is judged, i.e., step S520, until a determination result is "yes"; and step S530 is entered to wake up the personal mobile terminal <NUM> in the sleep mode.

It should be noted that the personal mobile terminal <NUM> is not limited to using the received wake-up signal to wake up the personal mobile terminal <NUM> in the sleep mode; in another embodiment, when the personal mobile terminal <NUM> scans a first bluetooth signal broadcasted by the first bluetooth module <NUM>, the signal strength of the first bluetooth signal that is scanned will be determined at the same time, and enables the personal mobile terminal <NUM> to automatically wake up from the sleep mode if the signal strength of the first bluetooth signal changes from relatively weak to equal to or greater than a first strength value; in yet another embodiment, when the personal mobile terminal <NUM> scans a first bluetooth signal broadcasted by the first bluetooth module <NUM>, the signal strength of the first bluetooth signal that is scanned will be determined at the same time, and the current distance from the personal mobile terminal <NUM> to the first bluetooth module <NUM> will be roughly determined based on the magnitude of the signal strength, so as to enable the personal mobile terminal <NUM> to automatically wake up from the sleep mode when the distance from the personal mobile terminal <NUM> to the first bluetooth module <NUM> is smaller than or equal to a certain predetermined value (e.g., a first distance threshold value). Further, in step S540, the personal mobile terminal <NUM> continues to scan so as to continue to receive the first bluetooth signal broadcasted by the first bluetooth module <NUM>. In this step, as the passenger has the need to take the elevator, the personal mobile terminal <NUM> may be constantly approaching the first bluetooth module <NUM>.

Further, in step S550, whether the current distance between the personal mobile terminal <NUM> and the first bluetooth module <NUM> is smaller than or equal to a first distance threshold value is judged according to the signal strength of the first bluetooth signal scanned. In this step, in one embodiment, the personal mobile terminal <NUM> can determine the current distance between the personal mobile terminal <NUM> and the first bluetooth module <NUM> according to the signal strength of the first bluetooth signal scanned, so as to judge whether the distance is smaller than or equal to the first distance threshold value according to the pre-entered or predetermined first distance threshold value, wherein the first distance threshold value can specifically be selected and set according to the signal strength of the first bluetooth signal broadcasted by the first bluetooth module <NUM>, the specific architectural structure of the elevator landing area, etc., for example, in the range of <NUM> to <NUM> meters, thus reflecting, as accurately as possible, that a passenger in the range smaller than or equal to the first distance threshold value indeed has the intention to take the elevator (i.e., having an elevator calling need).

It should be noted that in another embodiment, whether to establish a second bluetooth connection can be judged directly based on the signal strength of the second bluetooth signal scanned, and specifically, the personal mobile terminal <NUM> can judge, according to the signal strength of the second bluetooth signal scanned, whether the signal strength changes from relatively weak (e.g., <NUM>) to equal to or greater than a second strength value, and the second strength value can correspondingly be, for example, a signal strength value of the corresponding second bluetooth signal in the case of the second distance threshold value.

If a determination result is "no", step S540 is returned to, to continue scanning; if a determination result "yes", step S560 is entered, to automatically establish a first bluetooth connection between the first bluetooth module <NUM> and the personal mobile terminal <NUM>; at this moment, the first bluetooth module <NUM> can send a data signal to the personal mobile terminal <NUM>, for example, a data signal that reflects the UUID of the first bluetooth module <NUM>, a data signal that reflects the floor location information about where the first bluetooth module is located, etc., so that the personal mobile terminal <NUM> can learn to which first bluetooth module <NUM> it is connected and automatically acquire the floor location information about where it is currently located.

Further, in step S570, an elevator calling request command regarding an elevator calling direction is sent to the first bluetooth module <NUM>. In step S570, the first bluetooth module <NUM> simultaneously receives the elevator calling request command, and after receiving the elevator calling request command, as shown in <FIG>, the RSL processor <NUM> in the elevator calling control panel <NUM> can process the elevator calling request command and then transmit same to the elevator controller <NUM> via a bus, and of course can transmit the floor location information, etc. to the elevator controller <NUM>.

Further, in step S580, after the elevator calling request command is successfully accepted, a confirmation message is returned to the personal mobile terminal <NUM>. If the elevator calling request command is successfully accepted by the elevator controller <NUM>, i.e., the elevator controller <NUM> will control the running of one or more elevator cars <NUM> in the elevator system <NUM> based on the elevator calling request command, then the elevator controller <NUM> will return a confirmation message to the RSL processor <NUM>, and the confirmation message is further returned to the first bluetooth module <NUM> and is further returned to the personal mobile terminal <NUM>.

Further, in step S590, after receiving the confirmation message, the personal mobile terminal <NUM> actively disconnects the first bluetooth connection, to make preparation for the establishment of a connection between the personal mobile terminal <NUM> and the second bluetooth module <NUM>, and also make preparation for the establishment of a first bluetooth connection between the first bluetooth module <NUM> and other personal mobile terminals <NUM>.

Further, in step S610, the personal mobile terminal <NUM> continues to scan, and the signal strength of the second bluetooth signal broadcasted by the second bluetooth module <NUM> is weaker relative to the first bluetooth signal, and if the elevator car <NUM> corresponding to the second bluetooth module <NUM> arrives at the elevator landing area <NUM> and the personal mobile terminal <NUM> is close enough relative to the second bluetooth module <NUM>, then the personal mobile terminal <NUM> will scan the second bluetooth signal, for example, the passenger carrying the personal mobile terminal <NUM> is walking into the elevator car <NUM> or has already walked into the elevator car <NUM>, and the second bluetooth signal can be scanned.

Further, in step S620, whether the current distance between the personal mobile terminal <NUM> and the second bluetooth module <NUM> is smaller than or equal to a second distance threshold value is judged according to the signal strength of the second bluetooth signal scanned. In this step, the personal mobile terminal <NUM> can determine the current distance between the personal mobile terminal <NUM> and the second bluetooth module <NUM> according to the signal strength of the second bluetooth signal scanned, so as to be able to judge whether the distance is smaller than or equal to a second distance threshold value according to the pre-entered or predetermined second distance threshold value, wherein the second distance threshold value can specifically be selected and set according to the signal strength of the second bluetooth signal broadcasted by the second bluetooth module <NUM>, the size of the elevator car <NUM>, etc. Optionally, the second distance threshold value is smaller than the first distance threshold value, and the second distance threshold value is set in the range of <NUM> to <NUM> meter, so as to avoid firstly establishing a second bluetooth connection and then establishing a first bluetooth connection when a passenger enters the elevator landing area <NUM>, and it can also be avoided as far as possible that the personal mobile terminal <NUM> of a passenger who is outside the elevator car <NUM> and is definitely not intending to take the elevator car <NUM> establishes a second bluetooth connection with the second bluetooth module <NUM>. By setting the size of the second distance threshold value, it is possible to reflect, as accurately as possible, whether a passenger in the range smaller than or equal to the second distance threshold value is walking into the elevator car <NUM> or has already walked into the elevator car <NUM>.

If a determination result is "no", step S610 is returned to, to continue scanning; if a determination result is "yes", step S630 is entered, to automatically establish a second bluetooth connection between the second bluetooth module <NUM> and the personal mobile terminal <NUM>; at this moment, the second bluetooth module <NUM> can send a data signal to the personal mobile terminal <NUM>, for example, a data signal that reflects the UUID of the second bluetooth module <NUM>, a data signal that reflects the floor location information about where the second bluetooth module <NUM> is located, so that the personal mobile terminal <NUM> can learn to which second bluetooth module <NUM> it is connected and in which elevator car <NUM> it is located.

Further, in step S640, a target floor registration command is sent to the second bluetooth module <NUM>. In step S640, the second bluetooth module <NUM> simultaneously receives the target floor registration command, and after receiving the target floor registration command, as shown in <FIG>, the RSL processor <NUM> in the target floor registration control panel <NUM> can process the target floor registration command and then transmit same to the elevator controller <NUM> via a bus.

Further, in step S650, after the target floor registration command is successfully accepted by the elevator system <NUM>, a confirmation message is returned to the personal mobile terminal <NUM>. If the target floor registration command is successfully accepted by the elevator controller <NUM>, i.e., the elevator controller <NUM> will control the operation of the elevator car <NUM> based on the target floor registration command, then the elevator controller <NUM> will return a confirmation message to the RSL processor <NUM>, and the confirmation message is further returned to the second bluetooth module <NUM> and further returned to the personal mobile terminal <NUM>.

Further, in step S660, after receiving the confirmation message, the personal mobile terminal <NUM> actively disconnects the second bluetooth connection, to make preparation for the establishment of a second bluetooth connection between the second bluetooth module <NUM> and other personal mobile terminals <NUM>. At this moment, the elevator calling operation of the passenger has already been completed, and the passenger will be carried to the floor corresponding to the target floor registration command.

Further, in step S670, the personal mobile terminal <NUM> automatically enters a sleep mode.

So far, the process of a communication method corresponding to a personal mobile terminal <NUM> and an elevator system <NUM> is basically completed. However, it is to be understood that the first bluetooth module <NUM> and the second bluetooth module <NUM> of the elevator system <NUM> can successively perform the above communication process with other personal mobile terminals <NUM>; for example, after a plurality of passengers carrying personal mobile terminals <NUM> enter the elevator landing area <NUM>, the above steps S510 to S590 can be realized successively so that each passenger can complete the elevator calling operation in the elevator landing area; and after the plurality of passengers carrying personal mobile terminals <NUM> enter the elevator car <NUM>, the above steps S610 to S670 can be realized successively so that each passenger can complete the elevator calling operation in the elevator car. Therefore, in this embodiment, the first bluetooth module <NUM> establishes a first bluetooth connection with only one personal mobile terminal <NUM> at a certain moment, and likewise, the second bluetooth module <NUM> establishes a second bluetooth connection with only one personal mobile terminal <NUM> at a certain moment; and moreover, it is to be understood that the time length for performing the above steps S560 to S590 each time and the time length for performing the above steps S630 to S660 each time can be controlled, for example, in the order of magnitude of milliseconds, so as to satisfy the need that more passengers complete elevator calling operations basically at the same time in a shorter time period.

<FIG> is a structural schematic diagram of a module of a personal mobile terminal according to one embodiment of the present invention. As shown in <FIG>, the personal mobile terminal <NUM> is applied in the communication system <NUM> as shown in <FIG>, and is configured to be able to receive a first bluetooth signal broadcasted by the first bluetooth module <NUM> mounted in the elevator landing area <NUM> of the elevator system <NUM> and be able to receive a second bluetooth signal broadcasted by the second bluetooth module <NUM> mounted in the elevator car <NUM> of the elevator system <NUM>. For example, the personal mobile terminal <NUM> is configured with a bluetooth communication module <NUM> to receive the first bluetooth signal or the second bluetooth signal.

As shown in <FIG>, the personal mobile terminal <NUM> is provided with a bluetooth connection management module <NUM> for successively automatically establishing the first bluetooth connection and the second bluetooth connection respectively based on the first bluetooth signal and the second bluetooth signal. The specific process and principle for automatically establishing the first bluetooth connection are exemplified in the above description corresponding to steps S510 to S560 in <FIG>. In one embodiment, the bluetooth connection management module <NUM> is configured to automatically establish a bluetooth connection with only one of the first bluetooth module <NUM> and the second bluetooth module <NUM> at a certain moment; as an example, if the bluetooth connection management module <NUM> can scan the first bluetooth signal and the second bluetooth signal at the same time, the bluetooth connection management module <NUM> selects only one of them to establish a corresponding bluetooth connection, wherein the second bluetooth connection can only be established after the first bluetooth connection which is earlier established is disconnected.

In one embodiment, the bluetooth connection management module <NUM> is also configured to automatically establish the first bluetooth connection when signal strength of the first bluetooth signal it receives changes from relatively weak to equal to or greater than a first strength value, and/or automatically establish the second bluetooth connection when signal strength of the second bluetooth signal it receives changes from relatively weak to equal to or greater than a second strength value. Here, the first strength value can be determined in advance according to factors like the signal strength of the first bluetooth signal broadcast, the structure of the elevator landing area <NUM>, etc., and the second strength value can be determined in advance according to factors like the signal strength of the second bluetooth signal broadcast.

In one embodiment, the bluetooth connection management module <NUM> is provided with a recognition submodule <NUM>, wherein the recognition submodule <NUM> is used for recognizing the first bluetooth signal and determining a floor location where the first bluetooth module is located; in one example, the first bluetooth signal broadcasted by the first bluetooth module <NUM> includes the UUID thereof, and by recognizing the UUID, the recognition submodule <NUM> can recognize which specific bluetooth module broadcasts the first bluetooth signal, and can even recognize the floor location information about where the first bluetooth module is located; and in another example, the first bluetooth signal broadcasted by the first bluetooth module <NUM> also includes a data signal containing the floor location information about where the first bluetooth module is located, and by recognizing the data signal, the floor location information about where the first bluetooth module is located can be determined.

In one embodiment, the bluetooth connection management module <NUM> is also provided with a distance determination submodule <NUM>. When a personal mobile terminal <NUM> receives a first bluetooth signal, the distance determination submodule <NUM> can roughly determine the distance from the personal mobile terminal <NUM> to the first bluetooth module <NUM> according to the signal strength of the first bluetooth signal; likewise, when a personal mobile terminal <NUM> receives a second bluetooth signal, the distance determination submodule <NUM> can roughly determine the distance from the personal mobile terminal <NUM> to the second bluetooth module <NUM> according to the signal strength of the second bluetooth signal. The distance determination submodule <NUM> can automatically establish the first bluetooth connection when the distance from the personal mobile terminal <NUM> to the first bluetooth module <NUM> is smaller than or equal to a first distance threshold value.

The bluetooth connection management module <NUM> can manage bluetooth connections based on the result obtained by the recognition submodule <NUM> and/or the distance determination submodule <NUM>, for example, judging, according to the determined distance, whether the distance between the current personal mobile terminal <NUM> and the first bluetooth module <NUM> or the second bluetooth module <NUM> is smaller than or equal to a corresponding first distance threshold value or second distance threshold value, so as to determine whether to establish a first bluetooth connection or a second bluetooth connection. The bluetooth connection management module <NUM> can specifically set the size of the first distance threshold value and the size of the second distance threshold value, and the first distance threshold value is generally obviously greater than the second distance threshold value, for example, the first distance threshold value is set in the range of <NUM> to <NUM> meters, and the second distance threshold value is set in the range of <NUM> to <NUM> meter. As such, the bluetooth connection management module <NUM> can avoid simultaneously establishing the first bluetooth connection and the second bluetooth connection. Moreover, the bluetooth connection management module <NUM> can also be used for managing the automatic disconnection of the first bluetooth connection or the second bluetooth connection, for example, automatically disconnecting the first bluetooth connection after the personal mobile terminal <NUM> has already sent out an elevator calling request command, and automatically disconnecting the second bluetooth connection after the personal mobile terminal <NUM> has already sent out a target floor registration command.

Again, as shown in <FIG>, the personal mobile terminal <NUM> is also provided with a first command sending module <NUM> for automatically sending an elevator calling request command regarding an elevator calling direction to a corresponding first bluetooth module <NUM> when establishing the first bluetooth connection; as an example, if the recognition submodule <NUM> acquires the floor location information about where the first bluetooth module <NUM> is located, e.g., the lobby floor, an "upward" elevator calling request command can be sent according to a beforehand elevator calling request command setting, so as to replace the action of manually pressing the " upward" elevator calling button.

Again, as shown in <FIG>, the personal mobile terminal <NUM> is also provided with a second command sending module <NUM> for automatically sending a target floor registration command to a corresponding second bluetooth module <NUM> when establishing the second bluetooth connection; as an example, if the recognition submodule <NUM> acquires the floor location information about where the first bluetooth module <NUM> is located, e.g., the lobby floor, a target floor that the passenger might most possibly want to go to can be determined according to a beforehand target floor registration setting, and a corresponding target floor registration command can be sent, so as to replace the action of manually pressing the floor button in the elevator car.

The commands sent by the first command sending module <NUM> and the second command sending module <NUM> can be sent out in the form of bluetooth signals through the bluetooth communication module <NUM>, for example, sent to the first bluetooth module <NUM> through a first bluetooth connection channel established, sent to the second bluetooth module <NUM> through a second bluetooth connection channel established.

Again, as shown in <FIG>, in one embodiment, the personal mobile terminal <NUM> is also provided with a command generation module <NUM> which generates an elevator calling request command and/or a target floor registration command based on a personalized configuration, so as to be able to generate an accurate elevator calling request command or a target floor registration command according to the passenger's condition. As an example, a passenger corresponding to the personal mobile terminal <NUM> is carrying out daily work or life on the Nth floor of an office building or a residential building, and the passenger can enter the Nth floor in the command generation module <NUM> and go to the Nth floor by completing the hand-free automatic elevator calling operation through the personal mobile terminal <NUM> by default, i.e., entering a personalized configuration; if the passenger is currently located at the elevator landing area <NUM> of the (N-x)th floor (which can be acquired through the recognition submodule <NUM>), then the command generation module <NUM> will automatically generate an "upward" elevator calling request command and provide same to the first command sending module <NUM> for sending, and at the same time can also generate a target floor registration command corresponding to the Nth floor and provide same to the second command sending module <NUM> for sending; and if the passenger is currently located at the elevator landing area <NUM> of the (N+y)th floor (which can be acquired through the recognition submodule <NUM>), then the command generation module <NUM> will automatically generate a "downward" elevator calling request command and provide same to the first command sending module <NUM> for sending, and at the same time can also generate a target floor registration command corresponding to the Nth floor and provide same to the second command sending module <NUM> for sending.

If the passenger enters a plurality of floors in the command generation module <NUM> and goes to any one of the plurality of floors by completing the hand-free automatic elevator calling operation through the personal mobile terminal <NUM> by default, then a personalized configuration can be entered according to the set time period, the condition of the floor where he/she is currently located, etc., to generate an accurate elevator calling request command and/or target floor registration command.

It should be noted that the personal mobile terminal <NUM> of the above embodiments of the present invention can be realized by computer program instructions, for example, by a dedicated APP, and these computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer or other programmable data processing devices, to constitute a personal mobile terminal <NUM> of the embodiments of the present invention. Moreover, the processor of a computer or other programmable data processing devices can execute these instructions to create a unit or part for implementing functions/operations specified in these flowcharts and/or blocks and/or one or more flow block diagrams.

Likewise, the first bluetooth module <NUM> and the second bluetooth module <NUM> of the elevator system <NUM> of the above embodiments of the present invention can be realized by computer program instructions, for example, by a dedicated program, and these computer program instructions can be provided to a processor to constitute a control module <NUM> of the embodiments of the present invention. Moreover, these instructions executed by the processor of a computer or other programmable data processing devices can be used to create a unit or part for implementing functions/operations specified in these flowcharts and/or blocks and/or one or more flow block diagrams.

Moreover, these computer program instructions can be stored in a computer readable memory, these instructions can instruct the computer or other programmable processors to realize functions in a specific way, so that these instructions stored in the computer readable memory construct a manufacturing product that contains an instruction part for implementing the functions/operations specified in one or more blocks of the flowcharts and/or block diagrams.

It should also be noted that in some alternative implementation manners, the functions/operations shown in the blocks may not happen in the sequence shown in the flowchart. For example, two blocks that are successively shown can be executed substantially at the same time in fact, or these blocks sometimes can be executed in a reversed order, depending on the involved function/operation in particular.

It should be noted that the elements (including flowcharts and block diagrams in the accompanying drawings) disclosed and depicted in this specification refer to the logic boundary between elements. However, according to the software or hardware engineering practice, the depicted elements and the functions thereof can be executed on a machine through a computer executable medium, the computer executable medium has a processor that can execute program instructions stored thereon, and the program instructions serve as a monolithic software structure, as an independent software module or as a module using external programs, code, services, etc., or any combination of them, and all these execution solutions may fall in the scope of the present disclosure.

Although different non-restrictive embodiments have specifically described components, the embodiments of the present invention are not limited to these specific combinations. Some of the components or features from any non-restrictive embodiments can be used in combination with the features or components of any other non-restrictive embodiments, within the scope of the appended claims.

Although a specific step sequence is shown, disclosed and claimed, it should be understood that, within the scope of the claims, the steps can be implemented, separated or combined in any order, and will still benefit from the present disclosure, unless otherwise specified.

Claim 1:
An elevator system (<NUM>) comprising a communication system (<NUM>), the communication system (<NUM>) comprising:
a personal mobile terminal (<NUM>);
a first bluetooth module (<NUM>) for broadcasting a first bluetooth signal and automatically establishing a first bluetooth connection (<NUM>) with the personal mobile terminal (<NUM>) based on the first bluetooth signal, and receiving an elevator calling request command regarding an elevator calling direction sent from the personal mobile terminal (<NUM>) when establishing the first bluetooth connection (<NUM>); and
a second bluetooth module (<NUM>) for broadcasting a second bluetooth signal and automatically establishing a second bluetooth connection (<NUM>) with the personal mobile terminal (<NUM>) based on the second bluetooth signal, and receiving a target floor registration command sent from the personal mobile terminal (<NUM>) when establishing the second bluetooth connection (<NUM>),
wherein the first bluetooth module (<NUM>) is mounted in an elevator landing area (<NUM>) of the elevator system (<NUM>), and the second bluetooth module (<NUM>) is mounted in an elevator car (<NUM>) of the elevator system (<NUM>); and characterized in that:
the first bluetooth module (<NUM>) is further configured to return a first confirmation message to the personal mobile terminal (<NUM>) after receiving the elevator calling request command; and the personal mobile terminal (<NUM>) is further configured to actively disconnect the first bluetooth connection (<NUM>) based on the first confirmation message received.