Patent Publication Number: US-2019168994-A1

Title: Automatically obtaining of floor information

Description:
FOREIGN PRIORITY 
     This application claims priority to Chinese Patent Application No. 201711265568.6, filed Dec. 5, 2017, and all the benefits accruing therefrom under 35 U.S.C. § 119, the contents of which in its entirety are herein incorporated by reference. 
     TECHNICAL FIELD 
     The present invention belongs to the field of Elevator technologies, and relates to automatic acquisition of floor information. 
     BACKGROUND ART 
     To improve the experience of passengers, a wireless terminal module is mounted and set in an Elevator system to interact with personal mobile terminals carried by passengers, thus implementing an automatic call function or the like. 
     A personal mobile terminal usually needs to acquire current floor information of the personal mobile terminal. The floor information is an information basis for further implementing corresponding intelligent functions. 
     SUMMARY OF THE INVENTION 
     According to a first aspect of the present invention, a communications system for an elevator system is provided. The communications system includes: a radio signal apparatus configured to broadcast an identity including a floor information bit, where the floor information bit is used to indicate floor information of the radio signal apparatus, where the communications system recognizes, by using a personal mobile terminal, the identity broadcasted by the radio signal apparatus without establishing a connection to the radio signal apparatus, and further acquires current floor information of the personal mobile terminal by using the personal mobile terminal based on the floor information bit in the recognized identity. 
     In the communications system according to an embodiment of the present invention, the radio signal apparatus is mounted in an elevator car, and the floor information bit changes as a floor on which the radio signal apparatus is located changes. 
     In the communications system according to an embodiment of the present invention, the radio signal apparatus is configured to acquire, from an elevator control system, a floor on which the radio signal apparatus is currently located. 
     In the communications system according to an embodiment of the present invention, the radio signal apparatus is mounted in a landing area, and the floor information bit is used to indicate floor information of the landing area in which the radio signal apparatus is mounted. 
     In the communications system according to an embodiment of the present invention, the radio signal apparatus is a Bluetooth module or a Bluetooth Low Energy (BLE) module. 
     In the communications system according to an embodiment of the present invention, the communications system reminds, by using the personal mobile terminal, a passenger using the personal mobile terminal when the acquired floor information is close or equal to destination floor information. 
     In the communications system according to an embodiment of the present invention, the radio signal apparatus is further configured to establish a wireless connection to the personal mobile terminal to receive a destination-floor registration command and/or a call request command about a call direction from the personal mobile terminal. 
     According to a second aspect of the present invention, a radio signal apparatus is provided. The radio signal apparatus is used in an elevator system and broadcasts an identity of the radio signal apparatus. The identity includes a floor information bit. The floor information bit is used to indicate floor information of the radio signal apparatus. 
     In the radio signal apparatus according to an embodiment of the present invention, the radio signal apparatus is mounted in an elevator car, and the floor information bit changes as a floor on which the radio signal apparatus is located changes. 
     In the radio signal apparatus according to an embodiment of the present invention, the radio signal apparatus is configured to acquire, from an elevator controller of the elevator system, a floor on which the radio signal apparatus is currently located. 
     In the radio signal apparatus according to an embodiment of the present invention, an identity setting unit is disposed in the radio signal apparatus, and is configured to write floor information acquired from the elevator controller into the floor information bit of the identity. 
     In the radio signal apparatus according to an embodiment of the present invention, the radio signal apparatus is mounted in a landing area, and the floor information bit is used to indicate floor information of the landing area in which the radio signal apparatus is mounted. 
     In the radio signal apparatus according to an embodiment of the present invention, the radio signal apparatus is a Bluetooth module or a BLE module. 
     According to a third aspect of the present invention, an elevator system is provided. The elevator system includes: elevator cars; an elevator controller configured to control operation of one or more of the elevator cars in the elevator system; and any foregoing radio signal apparatus mounted in a landing area and/or the elevator car. 
     In the elevator system according to an embodiment of the present invention, the elevator system recognizes, by using a personal mobile terminal, an identity broadcasted by the radio signal apparatus without establishing a connection to the radio signal apparatus, and further acquires, by using the personal mobile terminal, current floor information of the personal mobile terminal based on a floor information bit in the recognized identity. 
     In the elevator system according to an embodiment of the present invention, the radio signal apparatus mounted in the elevator car is configured to broadcast a first radio signal; automatically establish, based on the first radio signal, a first wireless connection to a personal mobile terminal carried by a passenger; and receive, when the first wireless connection is established, a destination-floor registration command sent from the personal mobile terminal. 
     In the elevator system according to an embodiment of the present invention, the radio signal apparatus mounted in the landing area is configured to broadcast a second radio signal; automatically establish, based on the second radio signal, a second wireless connection to a personal mobile terminal carried by a passenger; and receive, when the second wireless connection is established, a call request command about a call direction sent from the personal mobile terminal. 
     According to a fourth aspect of the present invention, a method for an elevator system is provided. The method includes steps of: recognizing an identity broadcasted by a radio signal apparatus without establishing a connection to the radio signal apparatus, where the identity includes a floor information bit used to indicate floor information of the radio signal apparatus; and acquiring current floor information of the radio signal apparatus based on the floor information bit in the recognized identity. 
     In the method according to an embodiment of the present invention, the method further includes a step of: reminding a passenger using a personal mobile terminal when the acquired floor information is close or equal to destination floor information. 
     According to a fifth aspect of the present invention, a method for an elevator system is provided. The method includes a step of: broadcasting, by a radio signal apparatus, an identity of the radio signal apparatus, where the identity includes a floor information bit used to indicate floor information of the radio signal apparatus. 
     In the method according to an embodiment of the present invention, the floor information bit changes as a floor on which an elevator car provided with the radio signal apparatus is located changes. 
     In the method according to an embodiment of the present invention, the method further includes steps of: acquiring a floor on which the elevator car provided with the radio signal apparatus is currently located; and setting the floor information bit based on the acquired floor. 
     According to a sixth aspect of the present invention, a computer readable storage medium is provided. The computer readable storage medium stores a computer program, and the program is executable by a processor to implement the steps in any method in the foregoing fifth aspect. 
     According to a seventh aspect of the present invention, a personal mobile terminal is provided. The personal mobile terminal includes a wireless communications unit. The wireless communications unit is configured to recognize an identity broadcasted by any radio signal apparatus described in the foregoing without establishing a connection to a radio signal apparatus. 
     The personal mobile terminal is further configured to acquire current floor information of the personal mobile terminal based on a floor information bit in the recognized identity. 
     In the personal mobile terminal according to an embodiment of the present invention, the personal mobile terminal is further configured to remind a passenger using the personal mobile terminal when the acquired floor information is close or equal to destination floor information. 
     In the personal mobile terminal according to an embodiment of the present invention, the wireless communications unit is a Bluetooth communications module. 
     According to an eighth aspect of the present invention, a computer device is provided. The computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When executing the program, the processor implements the steps in the method in the foregoing fifth aspect or sixth aspect. 
     The foregoing features and operations of the present invention will become more obvious according to the following descriptions and accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The foregoing and other objectives and advantages of the present invention will become more complete and clearer through the following detailed descriptions with reference to the accompanying drawings, where identical or similar elements are represented by using identical reference numerals. 
         FIG. 1  is a schematic diagram of a system according to an embodiment of the present invention, where a radio signal apparatus and a personal mobile terminal interacting with the radio signal apparatus in an embodiment of the present invention are provided; 
         FIG. 2  is a schematic structural diagram of a radio signal apparatus according to an embodiment of the present invention; 
         FIG. 3  is a schematic diagram of an application scenario of the system in the embodiment shown in  FIG. 1 ; 
         FIG. 4  is a schematic diagram of another application scenario of the system in the embodiment shown in  FIG. 1 ; 
         FIG. 5  is a flowchart of a method according to an embodiment of the present invention, where  FIG. 5( a )  shows a method procedure performed by a radio signal apparatus in the embodiment of the present invention, and  FIG. 5( b )  shows a method procedure performed by a personal mobile terminal in the embodiment of the present invention; and 
         FIG. 6  is a flowchart of a method according to another embodiment of the present invention, where  FIG. 6( a )  shows a method procedure performed by a radio signal apparatus in the another embodiment of the present invention, and  FIG. 6( b )  is a method procedure performed by a personal mobile terminal in the another embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Exemplary embodiments of the present invention are described below. Examples of these embodiments are illustrated in the accompanying drawings. Whenever possible, identical reference numerals will be used to represent identical or similar components in all the accompanying drawings. 
     For the purpose of simplicity and descriptiveness, the principles of the present invention are mainly described herein with reference to the exemplary embodiments of the present invention. However, those skilled in the art will easily understand that the same principles may be equivalently applied to all types of radio signal apparatuses and personal mobile terminals, systems using the radio signal apparatuses and personal mobile terminals, and/or methods correspondingly performed by the radio signal apparatuses and personal mobile terminals, in which these same principles can be implemented, and any change of this type does not depart from the actual spirit and scope of the present patent application. Moreover, reference is made to the accompanying drawings in the following descriptions. Specific exemplary embodiments are illustrated in these accompanying drawings. Electrical, mechanical, logical, and structural changes can be made to these embodiments without departing from the spirit and scope of the present invention. In addition, the features of the present invention are disclosed with reference to only one of several implementations/embodiments. However, provided that a feature may be expected and/or beneficial for any given or recognizable function, this feature may be combined with one or more other features in other implementations/embodiments. Therefore, the following descriptions should not be considered to be limitative, and the scope of the present invention is defined by the appended claims and equivalents thereof. 
       FIG. 1  is a schematic diagram of a system according to an embodiment of the present invention, where a radio signal apparatus and a personal mobile terminal interacting with the radio signal apparatus in an embodiment of the present invention are provided. The system  10  shown in  FIG. 1  may be a communications system for an elevator system, and is, for example, used as a part of the communications system for the elevator system. The system  10  may implement communication exchange between a radio signal apparatus  100  and a personal mobile terminal  300  in the embodiment of the present invention. In an embodiment, the radio signal apparatus  100  can establish a communication connection to an elevator controller of the elevator system by using, for example, a Remote Serial Link (RSL) processor. The radio signal apparatus  100  may send or broadcast a radio signal, and the personal mobile terminal  300  may receive the radio signal and may establish a wireless connection to the radio signal apparatus  100  according to a requirement, so as to implement communication exchange between the radio signal apparatus  100  and the personal mobile terminal  300 . 
     As shown in  FIG. 1 , an identity (ID)  200  is configured for the radio signal apparatus  100 . The radio signal apparatus  100  may broadcast the identity  200 . The identity  200  includes a floor information bit. The floor information bit is used to indicate floor information of the radio signal apparatus  100 . Specifically, in a definition form of the identity  200  in an example shown in  FIG. 1 , “xxx” in the identity  200  indicates an identifier bit, and may be, for example, a universally unique identifier (UUID). An identifier bit of the identity  200  of each radio signal apparatus  100  in the elevator system may be uniformly preallocated. For example, if the radio signal apparatus  100  is mounted in an elevator car, the identifier “xxx” may be set based on an identity of the elevator car. “yyy” in the identity  200  indicates a type of the radio signal apparatus  100 . For example, if the radio signal apparatus  100  is a BLE module, “yyy” may be set to “BLE”. “n” in the identity  200  is a floor information bit at the end, and indicates the floor information of the radio signal apparatus  100 . For example, if n=5, it indicates that the radio signal apparatus  100  is on the 5 th  floor. 
     At the same time when an antenna of the radio signal apparatus  100  broadcasts a radio signal, the identity  200  is broadcasted continuously or at predetermined time intervals. Correspondingly, the personal mobile terminal  300  in this embodiment of the present invention may continuously or intermittently scan for a radio signal, so as to acquire a current selectable radio signal for establishing a wireless connection. For example, if entering the coverage area of a radio signal broadcasted by the radio signal apparatus  100 , the personal mobile terminal  300  may automatically detect the radio signal. 
     Each personal mobile terminal  300  in the embodiment of the present invention can perform, without establishing a connection to the radio signal apparatus  100 , a scan to recognize the identity  200  broadcasted by the radio signal apparatus  100 , so that the personal mobile terminal  300  can acquire current floor information (for example, the “n th  floor”) of the personal mobile terminal  300  based on the floor information bit (for example, “n”) in the recognized identity  200 . As such, the personal mobile terminal  300  applied to the communications system in the embodiment of the present invention may obtain the current floor information of the personal mobile terminal  300  without establishing a connection to the radio signal apparatus  100 . 
     Specifically, in an embodiment, a wireless communications unit (for example, a Bluetooth communications module) is configured in each personal mobile terminal  300 . The wireless communications unit scans for nearby radio signals, and performs scans to recognize an identity  200  in each radio signal. A corresponding component may be disposed in the wireless communications unit to acquire the floor information indicated by the floor information bit in the identity  200 , or may send the identity  200  to a corresponding component (for example, a processor) of the personal mobile terminal  300  to analyze the floor information bit in the identity  200  and acquire the floor information indicated by the floor information bit, so as to acquire the current floor information of the personal mobile terminal  300 . 
     Therefore, in the system  10  in the foregoing embodiments, each personal mobile terminal  300  may acquire current floor information of the personal mobile terminal  300  without establishing a connection to a corresponding radio signal apparatus  100 . In other words, a currently processed floor location can be automatically acquired as long as the personal mobile terminal  300  can detect or sense a radio signal. As such, it is possible that the personal mobile terminal  300  does not need to occupy the connection capacity at a moment or continuously. This is particularly significant if the radio signal apparatus  100  corresponds to a relatively large quantity of personal mobile terminals  300  (for example, when a quantity z of personal mobile terminals  300   1  to  300   z  shown in  FIG. 1  is very large). It is unnecessary for each personal mobile terminal  300  to establish a wireless connection to the radio signal apparatus  100 , so as to achieve fast response. Each personal mobile terminal  300  may rapidly acquire the floor information. Alternatively, this is particularly significant if the radio signal apparatus  100  needs to be connected to one or more personal mobile terminals  300  to implement other functions (for example, each personal mobile terminal  300  needs to establish a connection to the radio signal apparatus  100  to send a call request command and/or a destination-floor registration command from the personal mobile terminal  300 ). As such, as the connection capacity is not occupied, the connection between the personal mobile terminal  300  and the radio signal apparatus  100  is not hindered, so that the implementation of the foregoing other functions is not hindered. 
     In an embodiment, the radio signal apparatus  100  is a Bluetooth module, and is specifically, for example, a BLE module that can broadcast a Bluetooth signal. Correspondingly, it is chosen that the wireless communications unit of the personal mobile terminal  300  is disposed as the Bluetooth communications module. The Bluetooth communications module and the Bluetooth module may perform Bluetooth interaction and communication based on a Bluetooth 4.0 protocol. The Bluetooth module may perform scans and establish connections, so as to sequentially establish a Bluetooth connection to each of a plurality of personal mobile terminals  300 . As such, each personal mobile terminal  300  can implement a corresponding function such as a call request function and/or a destination-floor registration function by using the Bluetooth module. The Bluetooth module has relatively limited connection capacity. Therefore, the system  10  in the foregoing embodiments has a more obvious effect if the radio signal apparatus  100  is a Bluetooth module. 
       FIG. 2  is a schematic diagram of a modular structure of a radio signal apparatus  100  according to an embodiment of the present invention. In the embodiment shown in  FIG. 2 , the radio signal apparatus  100  is a Bluetooth module  100 , and has an identity setting unit  111 , a Bluetooth processor  112 , and an antenna  113 . The identity setting unit  111  may set an identity  200  of the radio signal apparatus  100 , and particularly, set a floor information bit of the identity  200 . In an embodiment, the floor information bit of the identity  200  is fixed (for example, when the radio signal apparatus  100  is fixedly mounted in a landing area), and the identity setting unit  111  sets the identity  200  that no longer changes. In another embodiment, the floor information bit of the identity  200  changes dynamically (for example, when the radio signal apparatus  100  is fixedly mounted in an elevator car), and the identity setting unit  111  can dynamically acquire current floor information of the radio signal apparatus  100  from an elevator system, and dynamically write the floor information into the floor information bit of the identity  200 . 
     In an embodiment, as shown in  FIG. 2 , the identity setting unit  111  may establish a communication connection to an elevator controller of the elevator system by using, for example, an RSL processor  190 , so that the floor information of the radio signal apparatus  100  can be conveniently acquired. 
     It should be noted that a specific type of the radio signal apparatus  100  is not limited to a Bluetooth module in the foregoing embodiments. For example, the radio signal apparatus may further be another type of radio signal apparatus such as a Wifi module, or another radio signal apparatus similar to the Bluetooth module known to those skilled in the art. It will be understood that another radio signal apparatus that appears after the filing date of the present application and is similar to the Bluetooth module may also be alternatively applied to the present invention to implement the objectives and solutions of the present invention. 
     The present invention provides an elevator system to which the system  10  in the foregoing embodiments is applied. 
     In an embodiment of the elevator system, as shown in  FIG. 3 , the radio signal apparatus  100 - 1  in the embodiment shown in  FIG. 1  of the present invention is disposed in an elevator car  800  of the elevator system (for example, the radio signal apparatus  100 - 1  and a destination-floor registration control panel are integrally mounted). The radio signal apparatus  100 - 1  may be a BLE module and can broadcast a radio signal such as a Bluetooth signal to at least cover the internal area of the elevator car  800 . The radio signal apparatus  100 - 1  may establish a wireless connection (for example, a Bluetooth connection) to a personal mobile terminal  300  based on the radio signal broadcasted by the radio signal apparatus  100 - 1 , and receive, when the wireless connection is established, a destination-floor registration command sent from the personal mobile terminal  300 . As such, when approaching or entering the elevator car  800 , a passenger  90  carrying the personal mobile terminal  300  can register a destination floor in an operation-free manner. The passenger  90  does not need to manually register a destination floor on the destination-floor registration control panel in the elevator car  800 , or does not need to manually register a destination floor on the personal mobile terminal  300 . 
     In an embodiment of the elevator system, as shown in  FIG. 4 , the radio signal apparatus  100 - 2  in the embodiment shown in  FIG. 1  of the present invention is disposed in a landing area  850  of the elevator system. The radio signal apparatus  100 - 2  may be a BLE module (for example, the radio signal apparatus  100 - 2  and a call control panel are integrally mounted), and can broadcast a radio signal such as a Bluetooth signal to at least cover the landing area  850 . The radio signal apparatus  100 - 2  may establish a wireless connection (for example, a Bluetooth connection) to the personal mobile terminal  300  based on the Bluetooth signal broadcasted by the radio signal apparatus  100 - 2 , and receive, when the wireless connection is established, a call request command about a call direction (for example, upward or downward) sent from the personal mobile terminal  300 . As such, when approaching or entering the landing area  850 , the passenger  90  carrying the personal mobile terminal  300  can complete a call request in an operation-free manner. The passenger  90  does not need to manually register a call operation on the call control panel in the landing area  850 , or does not need to manually register a call operation on the personal mobile terminal  300 . 
     In an alternative embodiment, the radio signal apparatus  100 - 2  shown in  FIG. 4  may also receive a call request command about a call direction and a destination floor sent from the personal mobile terminal  300 . As such, the registration of a destination floor can be completed without depending on the radio signal apparatus  100 - 1  of the elevator car  800 . 
     In the elevator system  10  in an embodiment of the present invention, the connection capacity provided by the radio signal apparatus  100  may be used as much as possible to establish a wireless connection during the foregoing automatic elevator service request, so that it can be ensured that the function of the foregoing automatic elevator service request is completed in a timely and successful manner and passengers have desirable call experience. 
     With reference to  FIG. 1  and  FIG. 3 , an example of the application of the system  10  in the embodiment of the present invention is described. 
     As shown in  FIG. 3 , the radio signal apparatus  100 - 1  (for example, a BLE module) is mounted in the elevator car  800 , and broadcasts a Bluetooth signal or the like. A passenger  90  who enters the elevator car  800  needs to establish a Bluetooth connection to the radio signal apparatus  100 - 1  by using a personal mobile terminal  300  carried by the passenger  90  and send a destination-floor registration command by using the personal mobile terminal  300 . The radio signal apparatus  100 - 1  may receive the command and forward the command to an elevator controller (not shown) connected to the radio signal apparatus  100 - 1 , so as to complete a process of registering a destination floor. A plurality of passengers  90  may enter the elevator car  800  at the same time; therefore, the foregoing registration process of each passenger  90  should be efficiently completed as soon as possible. If the radio signal apparatus  100 - 1  is still establishing a Bluetooth connection to the personal mobile terminal  300  of each passenger  90  that is already in the elevator car  800  before to send current floor information of the radio signal apparatus  100 - 1 , it should be understood that first the Bluetooth connection process is time consuming, and an actual floor may have already changed when a personal terminal of a passenger  90  receives the floor information. Especially, the Bluetooth connection occupies the connection capacity of the radio signal apparatus  100 - 1 , and the registration of a destination floor by a personal mobile terminal  300  of another passenger  90  who newly enters is affected or hindered. 
     The radio signal apparatus  100 - 1  continuously broadcasts a current identity  200  of the radio signal apparatus  100 - 1 . The identity  200  carries a floor information bit indicating the floor information of the radio signal apparatus  100 - 1  (that is, indicating floor information of the elevator car  800 ). Therefore, the personal mobile terminal  300  of each passenger  90  can perform, without establishing a Bluetooth connection to the radio signal apparatus  100 - 1 , a scan to recognize the identity broadcasted by the radio signal apparatus  100 - 1 , and acquire, based on the floor information bit in the recognized identity, the current floor information of the elevator car  800 , that is, current floor information of the personal mobile terminal  300 . 
     As the elevator car  800  continuously goes up or down, the floor information of the elevator car  800  definitely changes dynamically. The floor information bit (for example, “n”) of the identity  200  of the radio signal apparatus  100 - 1  may dynamically change accordingly. As such, the floor information bit of the identity  200  changes as a floor on which the radio signal apparatus  100 - 1  is located changes. Correspondingly, the personal mobile terminal  300  performs a scan to recognize the dynamically changed floor information bit of the identity broadcasted by the radio signal apparatus  100 - 1 , so that the personal mobile terminal  300  of the passenger  90  may dynamically acquire the current floor information of the personal mobile terminal  300 . 
     In an embodiment, a reminder unit may be disposed in the personal mobile terminal  300 . When the acquired floor information is close or equal to destination floor information (the destination floor information is known in the personal mobile terminal  300 ), the reminder unit reminds a passenger  90  using the personal mobile terminal  300 , for example, sends a vibration and/or sound prompt signal, to remind the passenger  90  to leave the elevator car  800  or prepare to leave the elevator car  800 . To judge whether the acquired floor information is close to the destination floor information, a condition of “close” may be defined according to a factor such as a travel speed of the elevator car. For example, when an absolute value of a difference between the currently acquired floor information and the destination floor information is less than or equal to 1 to 2, it is determined that the acquired floor information is close to the destination floor information. 
     In another alternative embodiment, a reminder unit may be disposed in or coupled to the radio signal apparatus  100 - 1 . The reminder unit broadcasts reminder information in a sound form when the acquired floor information is close or equal to destination floor information (the destination floor information is known in the radio signal apparatus  100 - 1 ) registered by any passenger. 
     An example of a method in an embodiment of the present invention is described below with reference to  FIG. 3  and  FIG. 5 . 
     First, as shown in  FIG. 5 , in step S 510 , a floor on which an elevator car  800  is currently located is acquired. Specifically, a radio signal apparatus  100 - 1  coupled to an elevator controller of an elevator system may acquire current floor information of the elevator car  800  (no matter the elevator car  800  is travelling or is stopped) from the elevator controller at any time. 
     In step S 520 , a floor information bit in an identity  200  of the radio signal apparatus  100 - 1  is changed based on the acquired floor. For example, the floor information bit “n” is equal to the floor on which the elevator car  800  is currently located. Therefore, the floor information bit “n” may be dynamically changed and set. 
     In step S 530 , the identity  200  including the floor information bit is broadcasted. It should be understood that when the floor information bit “n” changes, the floor information bit “n” in the identity  200  broadcasted by the radio signal apparatus  100 - 1  definitely changes synchronously. 
     The foregoing steps S 510  to S 530  may be implemented in the radio signal apparatus  100 - 1  of the elevator car  800 . In a personal mobile terminal  300 , the following steps are performed: 
     In step S 540 , a scan is performed to recognize the identity  200  broadcasted by the radio signal apparatus  100 - 1  without establishing a connection (for example, a Bluetooth connection) to the radio signal apparatus  100 - 1 . It should be understood that the dynamically changing identity  200  can be dynamically recognized through scanning 
     In step S 550 , the current floor information is acquired based on the floor information bit in the recognized identity  200 . It should be understood that the dynamically changing floor information bit can be dynamically recognized and acquired, so that the current floor information can be dynamically acquired. As such, the personal mobile terminal  300  can rapidly and conveniently acquire current floor information of the personal mobile terminal  300 . 
     In an example of the application of the acquired floor information, the method further include step S 560 . In step S 560 , it is determined, for example, by comparing the acquired current floor information with destination floor information, whether the acquired current floor information is close or equal to the destination floor information. 
     In step S 570 , reminder information is sent when the acquired floor information is close or equal to the destination floor information. Specifically, the personal mobile terminal  300  may send the reminder information, for example, send reminder information of a sound and/or vibration. A passenger  90  may be reminded in time, thereby greatly improving experience of passengers. 
     It should be understood that the floor information acquired by the personal mobile terminal  300  is not limited to the reminder function in the foregoing embodiments, and may further be used as an information basis for developing other functions. Details are not described one by one herein. 
     An example of the application of the system  10  in the embodiment of the present invention is described with reference to  FIG. 1  and  FIG. 4 . 
     As shown in  FIG. 4 , a radio signal apparatus  100 - 2  (for example, a BLE module) is mounted in a landing area  850  and broadcasts a Bluetooth signal or the like. A passenger  90  who enters the landing area  850  needs to establish a Bluetooth connection to the radio signal apparatus  100 - 2  by using a personal mobile terminal  300  carried by the passenger  90  and send a call request command by using the personal mobile terminal  300 . The radio signal apparatus  100 - 2  may receive the command and forward the command to an elevator controller (not shown) connected to the radio signal apparatus  100 - 2 , so as to complete a call request process. A plurality of passengers  90  may enter the landing area  850  at the same time; therefore, the foregoing call request process of each passenger  90  should be efficiently completed as soon as possible. If the radio signal apparatus  100 - 2  is still establishing a Bluetooth connection to the personal mobile terminal  300  of each passenger  90  that is already in the landing area  850  before to send floor information corresponding to the landing area  850 , the Bluetooth connection occupies the connection capacity of the radio signal apparatus  100 - 2 , and the implementation of a call request function by a personal mobile terminal  300  of another passenger  90  is affected or hindered. 
     The radio signal apparatus  100 - 2  continuously broadcasts an identity  200  of the radio signal apparatus  100 - 2 . The identity  200  carries a floor information bit indicating the floor information of the landing area  850  in which the radio signal apparatus  100 - 2  (that is, indicating the floor information of the landing area  850 ). Therefore, the personal mobile terminal  300  of each passenger  90  of the landing area  850  can perform, without establishing a Bluetooth connection to the radio signal apparatus  100 - 2 , a scan to recognize the identity broadcasted by the radio signal apparatus  100 - 2 , and acquire, based on the floor information bit in the recognized identity, current floor information of the radio signal apparatus, that is, current floor information of the personal mobile terminal  300 . 
     In another case, when an elevator car  800  reaches the landing area  850 , especially, when a car door of the elevator car  800  and a corresponding floor door are opened, a radio signal broadcasted by the radio signal apparatus  100 - 2  may cover the inside of the elevator car  800 . Therefore, a personal mobile terminal  300  of a passenger  90  in the elevator car  800  may also receive the identity  200  broadcasted by the radio signal apparatus  100 - 2 . Based on the same principle, the personal mobile terminal  300  of the passenger  90  in the elevator car  800  can also acquire the floor information of the landing area  850 , that is, acquire the current floor information of the personal mobile terminal  300  in the elevator car  800 . Further, based on the same principle in the foregoing steps S 560  and S 570 , the reminder function for reaching a destination floor can also be implemented. 
     It should be understood that as shown in  FIG. 4 , in an embodiment, the foregoing radio signal apparatus  100 - 1  (for example, a BLE module) may further be mounted in the elevator car  800 , but the present invention is not limited thereto. 
     An example of a method in an embodiment of the present invention is described below with reference to  FIG. 4  and  FIG. 6 . 
     First, in step S 610 , an identity  200  including a floor information bit is broadcasted. In the step, the radio signal apparatus  100 - 2  continuously broadcasts the identity  200 . It should be understood that because the radio signal apparatus  100 - 2  is fixedly mounted in a landing area  850  on a floor, the floor information bit “n” of the broadcasted identity  200  is relatively fixed. 
     In a personal mobile terminal  300 , the following steps are correspondingly performed: 
     In step S 620 , the identity  200  broadcasted by the radio signal apparatus  100 - 2  is recognized without establishing a connection (for example, a Bluetooth connection) to the radio signal apparatus  100 - 2 . Before the identity  200  is recognized, a scan for a radio signal broadcasted by the radio signal apparatus  100 - 2  may further be performed. The scan process is also completed without establishing a connection to the radio signal apparatus  100 - 2 . 
     In step S 630 , current floor information is acquired based on the floor information bit in the recognized identity  200 . As such, both a personal mobile terminal  300  in the landing area  850  and a personal mobile terminal  300  in an elevator car  800  that reaches the landing area  850  (for example, if a car door and a floor door are opened) can rapidly and conveniently acquire current floor information of the personal mobile terminal  300 . 
     In an example of the application of the acquired floor information, the method further includes step S 640 . In step S 640 , the personal mobile terminal  300  in the elevator car  800  determines, for example, by comparing the acquired current floor information with destination floor information, whether the acquired current floor information is equal to the destination floor information. 
     In step S 650 , reminder information is sent when the acquired floor information is equal to the destination floor information. Specifically, the personal mobile terminal  300  in the elevator car  800  may send the reminder information, for example, send reminder information of a sound and/or a vibration. A passenger  90  may be reminded in time, thereby greatly improving experience of passengers. 
     It should be understood that the floor information acquired by the personal mobile terminal  300  is not limited to the reminder function in the foregoing embodiments, and may further be used as an information basis for developing other functions. Details are not described one by one herein again. 
     In the method for acquiring floor information in the foregoing embodiments, floor information can be rapidly and conveniently acquired regardless of dynamic changes of the floor information, and the connection capacity between the personal mobile terminal and the radio signal apparatus does not need to be occupied. 
     It should be understood that when a component is “connected” or “coupled” to another component, the component may be connected or coupled to the another component directly or via an intermediate component. 
     It should be understood that in block diagrams and/or flowcharts of the foregoing method, system, and apparatus according to the embodiments of the present invention, these flowchart descriptions and/or blocks of the block diagrams and combinations of the flowchart descriptions and/or block diagrams may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, a special purpose computer, or another programmable data processing device to produce a machine, such that these instructions, which are executed via the processor of the computer or another programmable data processing device, create components for implementing the functions/operations specified in the flowcharts and/or blocks and/or one or more procedure block diagrams. 
     These computer program instructions may be stored in a computer readable memory and can instruct a computer or another programmable processor to function in a particular manner, such that these instructions stored in the computer readable memory produce an article of manufacture including instruction components which implement the functions/operations specified in the flowcharts and/or one or more blocks in the block diagrams. 
     These computer program instructions may be loaded onto a computer or another programmable data processor to cause a series of operational steps to be performed on the computer or the another programmable data processor to produce a computer implemented process such that these instructions which are executed on the computer or the another programmable data processor provide steps for implementing the functions or operations specified in the flowcharts and/or one or more blocks in the block diagrams. It should further be noted that in some alternative implementations, the functions/operations noted in the blocks may occur out of the order noted in the flowcharts. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or these blocks may sometimes be executed in the reverse order, depending upon the functions/operations involved. 
     The foregoing descriptions are exemplary rather than limitative. Various non-limitative implementation solutions are disclosed herein. However, those of ordinary skill in the art will understand that various modifications and variations made according to the foregoing teachings will fall within the scope of the appended claims. Therefore, it should be understood that disclosed content other than specific disclosure can be implemented within the scope of the appended claims. Therefore, the actual scope and content should be determined by studying the appended claims.