Abstract:
An intelligent entrance guard unlocking method includes: transmitting electric energy of an intelligent entrance guard by wireless electromagnetic radiation via a transmit coil; receiving the electric energy via a receive coil of a powerless smart key; scanning an eye of a user to recognize an iris image of the user and storing the iris image in a second storage unit of the powerless smart key; controlling a wireless transmit unit of the powerless smart key to transmit a wireless signal containing the iris image to the intelligent entrance guard; obtaining a predefined iris image from a first storage unit of the intelligent entrance guard and comparing the iris image with the predefined iris image; unlocking the intelligent entrance guard when the iris image matches with the predefined iris image and not unlocking the intelligent entrance guard when the iris image does not match with the predefined iris image.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The application is related to co-pending applications (Ser. Nos. 14/755,867, 14/755,824, 14/755,887, 14/755,911), all entitled, “INTELLIGENT ENTRANCE GUARD UNLOCKING SYSTEM AND UNLOCKING METHOD THEREOF”, by WEN-KUEI CHOU, HSIN-NAN CHEN, CHIA-WEI CHANG, KUANG-YAO LIAO and CHIH-CHUNG WENG. Such applications have the same assignee as the instant application and are concurrently filed herewith. The disclosure of the above-identified applications is incorporated herein by reference. 
     FIELD 
     The subject matter herein generally relates to intelligent entrance guard unlocking systems and intelligent entrance guard unlocking methods. 
     BACKGROUND 
     In order to control entrance to a room or a device, a security system or admittance system can be implemented. Traditional systems have included a physical key. A physical key requires the operator to maintain possession of the physical key for both entrance and preventing others from entrance. Other systems involve electronic devices that communicate via wired or wireless technology. These systems can include batteries to operate. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Many aspects of the present disclosure are better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the views. 
         FIG. 1  is a block diagram of an embodiment of an intelligent entrance guard unlocking system. 
         FIGS. 2 and 3  cooperatively constitute a signal flowchart of an embodiment of an intelligent entrance guard unlocking method. 
     
    
    
     DETAILED DESCRIPTION 
     It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. 
     A definition that applies throughout this disclosure will now be presented. 
     The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like. 
       FIG. 1  shows an intelligent entrance guard unlocking system  1 . The intelligent entrance guard unlocking system  1  can be run on but not limited to an intelligent entrance guard  100  and a powerless smart key  200 . 
     The intelligent entrance guard  100  can include a first controller  10 , a power unit  11 , a current transmitter  12 , a transmit coil  13 , a first storage unit  14  and a wireless receive unit  15  and an unlocking unit  16 . The power unit  11  can be a battery. 
     The first storage unit  14  can be used to store a predefined identification code and a predefined iris image. In at least one embodiment, the predefined identification code can be an identification code of a smart key matched with the intelligent entrance guard  100 , and the iris image can be an iris image of a valid user of the intelligent entrance guard  100 . 
     The powerless smart key  200  can include a current receiver  21 , a receive coil  22 , a current convertor  23 , a second controller  24 , an iris recognition unit  25 , a second storage unit  26  and a wireless transmit unit  27 . 
     The iris recognition unit  25  can be used to scan an eye of a user to recognize an iris image of the user. In detail, the iris recognition unit  25  can search a pupil center of the eye of the user to position the pupil firstly, and capture a picture of an iris region of the eye secondly, and obtain the iris image from the capture picture lastly. 
     The second storage unit  26  can be used to store the iris image recognized by the iris recognition unit  25  and a unique identification code of the powerless smart key  200 . 
     The current transmitter  12  of the intelligent entrance guard  100  can transmit electric energy of the power unit  11  by wireless electromagnetic radiation via the transmit coil  13 . The current receiver  21  can receive the electric energy if it is within a predefined distance of the transmit coil  13  via the receive coil  22  and power the powerless smart key  200  via the received electric energy. 
     The powerless smart key  200  is started to work when being powered. That is, the iris recognition unit  25  can scan the eye of the user to recognize the iris image of the user and further store the iris image in the second storage unit  26 . The second controller  24  can obtain the unique identification code and the iris image from the second storage unit  26 . The second controller  24  can further control the wireless transmit unit  27  to transmit a wireless signal containing the unique identification code and the iris image. The wireless receive unit  15  of the intelligent entrance guard  100  can receive the wireless signal. The intelligent entrance guard  100  can obtain the unique identification code and the iris image from the wireless signal. The intelligent entrance guard  100  can compare the unique identification code obtained from the wireless signal to the predefined identification code stored in the storage unit  14 . The intelligent entrance guard  100  can further compare the iris image obtained from the wireless signal to the predefined iris image stored in the first storage unit of the intelligent entrance guard  100 . If the unique identification code matches with the predefined identification code and the iris image matches with the predefined iris image, the unlocking unit  16  can control to unlock the intelligent entrance guard  100 . The details are as follows. 
     The current transmitter  12  can electrically couple the power unit  11  with the transmit coil  13 . In the embodiment, the current transmitter  12  can be a current transmission circuit, and used to optimize the electric energy received from the power unit  11 . In detail, the current transmitter  12  can receive electric energy supplied by the power unit  11 , and filter noises of the received electric energy, and further transmit the filtered electric energy in a way of wireless electromagnetic radiation via the transmit coil  13 . In this embodiment, the electric energy can be alternating current. 
     The current receiver  21  can electrically couple with the receive coil  22 . The current receiver  21  can be used to receive the electric energy from the transmit coil  13  via the receive coil  22 . In the embodiment, the current receiver  21  can be a current receiving circuit, and the current receiver  21  can be used to filter noises of the electric energy received from the receive coil  22 . The electric energy can be alternating current. The receive coil  22  can be coupled with the transmit coil  13 . The transmit coil  13  can make the receive coil  22  generate induced current in a form of electro-magnetic induction, and the induced current can be alternating current. 
     The current convertor  23  can be used to convert the alternating current into direct current and power the powerless smart key  200  via the current, as if the powerless smart key  200  can be powered by a battery of itself. 
     The iris recognition unit  25  can scan the eye of the user to recognize the iris image of the user and further store the iris image in the second storage unit  26 . 
     The second controller  24  can electrically couple the second storage unit  26  with the wireless transmit unit  27 . The second controller  24  can be used to obtain the unique identification code and the iris image from the second storage unit  26  after the powerless smart key  200  has been powered. The second controller  24  can further control the wireless transmit unit  27  to transmit the wireless signal containing the unique identification code and the iris image. 
     The first controller  10  can electrically couple the wireless receive unit  15  with the first storage unit  14  respectively. The first controller  10  can be used to receive the wireless signal via the wireless receive unit  15 . The first controller  10  can obtain the unique identification code and the iris image from the wireless signal. The first controller  10  can compare the predefined identification code obtained from the first storage unit  14  with the unique identification code. The first controller  10  can compare the predefined iris image obtained from the first storage unit  14  with the iris image. 
     The unlocking unit  16  can control to unlock the intelligent entrance guard  100  when the unique identification code is matched with the predefined identification code and the iris image is matched with the predefined iris image. The unlocking unit  16  cannot control to unlock the intelligent entrance guard  100  when the unique identification code is not matched with the predefined identification code and/or the iris image is not matched with the predefined iris image. 
     In at least one embodiment, the intelligent entrance guard  100  can further include a first current-stabilizing unit  17 . The first current-stabilizing unit  17  can electrically couple the power unit  11  with the current transmitter  12 . The first current-stabilizing unit  17  can be used to stabilize the current of the power unit  11  to prevent the current to exceed a predefined value suddenly, which may damage the electronic components of the intelligent entrance guard  100 . 
     In at least one embodiment, the intelligent entrance guard  100  can further include a light controlling unit  18  and a light emitting unit  19 . The light controlling unit  18  can electrically couple the first controller  10  with the light emitting unit  19 . The light controlling unit  18  can be used to control the light emitting unit  19  to emit light with one color to prompt the user that the verification is successful when the unique identification code is matched with the predefined identification code and the iris image is matched with the predefined iris image. The light controlling unit  18  can further control the light emitting unit  19  to emit light with another color to prompt the user that the verification is unsuccessful when the unique identification code is not matched with the predefined identification code and/or the iris image is not matched with the predefined iris image. 
     In at least one embodiment, the powerless smart key  200  can further include a second current-stabilizing unit  28 . The second current-stabilizing unit  28  can couple the current receiver  21  with the current convertor  23 . The second current-stabilizing unit  28  can be used to stabilize the current of the received alternating current to prevent the current to exceed a predefined value suddenly, which may damage the electronic components of the powerless smart key  200 . 
     In at least one embodiment, if the received electric energy is direct current, the current convertor  23  can be thus omitted. 
     In at least one embodiment, the unique identification code matched with the predefined identification code can be that the unique identification code is equal to the predefined identification code and/or the unique identification code is uniquely corresponding to the predefined identification code. 
     In at least one embodiment, the iris image matched with the predefined iris image can be that the iris image is same to the predefined iris image and/or the iris image is uniquely corresponding to the predefined iris image. 
     In at least one embodiment, the intelligent entrance guard unlocking system  1  can be used but not limited to a vehicle door, a door, a box, a cabinet, an electronic device or other suitable device or object, for safety. 
     The above verification process can include the verification of the identification code and the verification of the iris image. In at least one embodiment, and the verification of the identification code can be omitted. Therefore, the second controller  24  can control the wireless transmit unit  27  to transmit the wireless signal containing the iris image. The first controller  10  can compare the predefined iris image obtained from the first storage unit  14  with the iris image. The unlocking unit  16  can control to unlock the intelligent entrance guard  100  when the iris image is matched with the predefined iris image. The unlocking unit  16  cannot control to unlock the intelligent entrance guard  100  when the iris image is not matched with the predefined iris image. The light controlling unit  18  can control the light emitting unit  19  to emit light with one color to prompt the user that the verification is successful when the iris image is matched with the predefined iris image. The light controlling unit  18  can further control the light emitting unit  19  to emit light with another color to prompt the user that the verification is unsuccessful when the iris image is not matched with the predefined iris image. 
       FIGS. 2 and 3  cooperatively constitute a signal flowchart of an intelligent entrance guard unlocking method. The intelligent entrance guard unlocking method is provided by way of example, as there are a variety of ways to carry out the method. The control method described below can be carried out using the configurations illustrated in  FIG. 1 , for example, and various elements of these figures are referenced in explaining the example method. Each block shown in  FIGS. 2 and 3  represents one or more processes, methods, or subroutines carried out in the example method. Furthermore, the illustrated order of blocks is by example only and the order of the blocks can be changed. Additional blocks may be added or fewer blocks may be utilized, without departing from this disclosure. The example method can begin at block  201 . 
     At block  201 , a current transmitter receives electric energy supplied by a power unit of an intelligent entrance guard, and transmits the electric energy by wireless electromagnetic radiation via a transmit coil of the intelligent entrance guard, and the electric energy is alternating current. 
     At block  202 , a current receiver receives the electric energy transmitted by the transmit coil via a receive coil of a powerless smart key, and the electric energy is alternating current. 
     At block  203 , a current convertor converts the alternating current into direct current and power the powerless smart key via the received electric energy as if the powerless smart key is powered by a battery of itself. 
     At block  204 , an iris recognition unit scans an eye of a user to recognize an iris image of the user and further stores the iris image in a second storage unit of the powerless smart key. 
     At block  205 , a second controller obtains a unique identification code and the iris image from the second storage unit of the powerless smart key after the powerless smart key has been powered, and further controls a wireless transmit unit to transmit a wireless signal containing the unique identification code and the iris image. 
     At block  206 , a first controller receives the wireless signal via a wireless receive unit of the intelligent entrance guard, and obtains the unique identification code and the iris image from the wireless signal, and compares a predefined identification code obtained from a first storage unit of the intelligent entrance guard with the unique identification code, and compares a predefined iris image obtained from the first storage unit of the intelligent entrance guard with the iris image, and determines whether the unique identification code is matched with the predefined identification code and the iris image is matched with the predefined iris image, if yes, the process goes to block  207 , otherwise, the process goes to block  208 . 
     At block  207 , a light controlling unit controls a light emitting unit of the intelligent entrance guard to emit light with one color to prompt the user that the verification is successful and an unlocking unit unlocks the intelligent entrance guard. 
     At block  208 , the light controlling unit controls the light emitting unit of the intelligent entrance guard to emit light with another color to prompt the user that the verification is unsuccessful and the unlocking unit cannot unlock the intelligent entrance guard. 
     The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of intelligent entrance guard unlocking system and unlocking method thereof. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the details, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.