KR20050024992A - Stationary wireless biometric information recognition door lock - Google Patents

Abstract

PURPOSE: A stationary wireless biometric information recognizing door lock is provided to prevent an intrusion into a transmitter of the door lock from outside by establishing wireless communication between the outside transmitter and an inside receiver. CONSTITUTION: A stationary door lock apparatus includes a transmitter(100) and a receiver(200). The transmitter is fixed outside a door and recognizes biometric information of a user. The transmitter wirelessly transmits the recognized biometric information to the receiver. The receiver is fixed inside the door and performs user authentication process based on the biometric information from the transmitter. The receiver sends a door open signal when the user is registered. The door lock(300) locks or unlocks the door according to the door open signal.

Description

Stationary wireless biometric information recognition door lock

The present invention relates to a fixed wireless biometric door lock device, and in particular, in the door lock device for controlling the opening and closing of the door by recognizing biometric information such as fingerprints, the biometric part is fixed to the outside of the door, and the biometric part and the door lock drive part wirelessly It relates to a fixed wireless biometric door lock device to be connected.

BACKGROUND ART A door lock device is known that allows a user to open and close a door after confirming the identity of a person using biometric information such as a fingerprint or an iris. In these devices, the biometric information recognition unit for the recognition of the biometric information is generally installed on the outer wall of the door. In this case, the biometric information recognition unit for reading the biometric information of the person, the biometric information authentication unit for determining whether to open the door by identifying the identity of the person from the read biometric information, and the control signal from the biometric information recognition unit. According to the door lock driving unit for driving the door lock is implemented in one body or installed close to be connected by wire. Therefore, there is a problem that an external intruder can forcibly open the door by hacking the biometric information recognition unit or manipulating the door lock driver control signal by disassembling or breaking the biometric information recognition unit installed outside the door.

On the other hand, instead of fixedly installing the biometric information recognition unit on the outside of the door, as shown in Figure 1a is a door lock device configured in a form that can be carried by the individual. A schematic configuration of such a system is shown in FIG. 1B. The transmitter 100 is provided with a sensor capable of recognizing biometric information and a wireless circuit capable of wirelessly transmitting the input biometric information, thereby wirelessly transmitting the biometric information input by the user. The receiver 200 is provided with an authentication unit for authenticating and receiving biometric information input wirelessly, and outputs a control signal to the door lock 300 according to the authentication result. Alternatively, since both the biometric information recognition unit and the biometric information authentication unit are provided in the transmitter 100, when the input biometric information is a legitimate user, the transmitter 100 transmits a control signal to the receiver 200, and accordingly, In some embodiments, the receiver 200 outputs a control signal to the door lock 300. However, even in the case of the door lock device having such a configuration, since the receiver 200 and the door lock 300 are integrally formed or are installed adjacent to each other, the problems as described above still exist.

In order to solve this problem, the door lock device as shown in Figure 1c is installed to install the receiver 200 inside the door and reflect the optical signal from the receiver 100 through the door handle toward the receiver 200 Proposed. According to such a device, since the receiver 200 is installed inside the door, an external intruder cannot disassemble or damage the receiver 200. However, such a device has a disadvantage in that it is difficult to install and also has a limit in the angle at which the signal of the transmitter 100 can be received.

In addition, in the case of the system employing the portable transmitter 100, there is an inconvenience in that the battery built in the transmitter 100 needs to be replaced or recharged at regular intervals. In addition, when the portable transmitter is lost, there are problems such as difficulty in authenticating a user and inconvenience of having to carry the transmitter. In addition, in order to authenticate a user, a communication channel for wireless communication with the receiver 200 must be secured, and then information for authentication must be transmitted. have. In addition, when the transmitter 100 is lost, a new transmitter 100 should be registered. Since various encryption methods are required to prevent unauthorized registration of a new transmitter, the system becomes complicated and the registration process of the transmitter is cumbersome. There is a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and an object of the present invention is to provide a bioinformation recognizing door lock device which is less likely to open a door by unauthorized disassembly or hacking.

It is also an object of the present invention to provide a door lock device that can solve the problem of the door lock device using a portable transmitter.

The door lock device of the present invention is fixed to the outside of the door, the transmitter to recognize the user's biometric information and transmits the information wirelessly, and is fixed to the inside of the door, perform the user authentication using the biometric information from the transmitter And a receiver for transmitting a door open signal when the user is a registered user, and a door lock that locks or opens the door according to the door open signal from the receiver.

In addition, it is preferable that the transmitter and the receiver each include a rectifying circuit for obtaining a DC power required from a commercial power supply, a battery for supplying power in case of power failure, and a charge / discharge circuit for charging a battery from the commercial power supply.

In addition, each of the transmitter and the receiver may further include an emergency wired communication unit for transmitting and receiving a wired authentication signal for the door opening in case of emergency.

The wireless communication units of the transmitter and the receiver each have two communication channels, and when one communication channel does not operate normally, it is preferable to communicate through another communication channel. In addition, since a communication channel is always formed between the transmitter and the wireless communication unit of the receiver, no time is required for the formation of the communication channel.

Meanwhile, in addition to the biometric information of the user who is allowed to open the door, the ID of the user who is allowed to open the door is stored in the memory of the receiver, and the controller of the receiver stores the user's ID received from the transmitter together with the user's biometric information in the memory. The user authentication may be performed by comparing the biometric information stored in the memory with the received biometric information corresponding to the corresponding ID.

The receiver may further include a contact sensor input unit for receiving a signal from a sensor for detecting whether the door lock is open. In this case, it is preferable to send a warning signal when the signal from the contact sensor input unit indicates that the door lock is open in a situation where the door lock should not be opened.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic view for explaining the configuration of the door lock device of the present invention.

The user manipulates the transmitter 100 which is fixedly installed next to the door to be opened, inputs biometric information, and makes a door opening request. The transmitter 100 is provided with a sensor capable of recognizing biometric information and a wireless circuit capable of wirelessly transmitting the input biometric information, thereby wirelessly transmitting the biometric information input by the user. At this time, the biometric information of the user scanned by the user is generally transmitted, but in some cases, the biometric information of the administrator stored in the transmitter is stored when the biometric information of the user scanned by the user matches the biometric information stored in the transmitter. Information can also be sent. As bio-information that can be used, various information such as fingerprint, iris, vein, and face shape may be used.

The receiver 200 is provided inside the door 10 and is provided with an authentication unit for authenticating and receiving biometric information input wirelessly, and outputs a control signal to the door lock 300 according to the authentication result.

Alternatively, since both the biometric information recognition unit and the biometric information authentication unit are provided in the transmitter 100, when the input biometric information is a legitimate user, the transmitter 100 transmits a control signal to the receiver 200, and accordingly, The receiver 200 may be configured to output a control signal to the door lock 300. In addition, the receiver 200 may be provided with a door opening button for opening the door 10, and the user inside the door can be configured to open the door 10 by pressing it.

3A is a block diagram illustrating an internal configuration of the transmitter 100.

The transmitter 100 includes a biometric information recognition unit 120 for receiving biometric information of a user, a wireless communication unit for wirelessly transmitting device information including authentication information including recognized biometric information and a unique number of a transmitter ( 160, a key input unit 130 for selecting a function menu and inputting an emergency authentication number, a display unit 140 for displaying a state of a transmitter, and a memory for storing device information and programs necessary for operation of the device; 150 and the authentication information including the biometric information recognized by the biometric information recognition unit 120 or the emergency authentication number input through the key input unit 130 according to the user's operation through the wireless communication unit 160 It includes a control unit 120 to make. In addition, in an emergency, an emergency wired communication unit 170 may be further provided to transmit an authentication signal for opening the door by wire.

The wireless communication unit 160 may use various types of wireless communication interfaces such as Bluetooth, wireless LAN, etc. The present invention is not limited to a specific communication method. As the key input unit 130, a keypad, a touch screen, or the like may be used, and as the display unit 140, display elements such as an LED and an LCD may be used. The memory 150 may be a memory device such as a read only memory (ROM), a random access memory (RAM), a flash memory, an electrically erasable programmable ROM (EEPROM), or the like. In particular, it is preferable to use an inert memory element whose device information is not erased even if power is not supplied.

In the memory 150 of the transmitter 100, the unique information of the transmitter 100 and the name and device number of the receiver which the transmitter 100 can open are preferably stored. In addition, the history of opening the door using the transmitter 100 may be stored.

The transmitter 100 may be used by receiving power from a commercial power source. To this end, the transmitter includes a rectifier circuit for obtaining the necessary DC power from commercial power. Although not shown, the apparatus may further include a charge / discharge unit including a battery and a charge / discharge circuit for charging the battery from a commercial power source for operation during a power failure. And, it may further include a voice playback unit for outputting a guide or warning sound associated with the operation of the transmitter 100 through the speaker. The transmitter 100 may further include an encryption unit for encrypting the information to be transmitted. In this case, security can be maintained by encrypting the information transmitted through the wireless communication unit 160 using the encryption unit.

The wireless communication unit 160 may include a first communication channel for transmitting and receiving data wirelessly in a normal state, and a second communication channel for transmitting and receiving data wirelessly in an emergency. The first communication channel and the second communication channel may be two wireless transmission / reception circuits of the same type, or one may be a wireless transmission / reception circuit of different types, such as Bluetooth and the other.

3B is an example of the appearance of the transmitter 100. In this example, when a fingerprint is used as the biometric information, a fingerprint recognition sensor is provided as the biometric information recognition unit 120. In addition, the key input unit 130 is configured in the form of a keypad, and an LCD is used as the display unit 140. In the present invention, such a transmitter 100 is to be installed on the outer side of the door. On the other hand, it is preferable that the transmitter protects the static electricity by applying an antistatic paint on the outside of the keypad or the case of the receiver.

4 is a block diagram illustrating an internal configuration of the receiver 200.

The receiver 200 is installed inside the door 10 to communicate with the transmitter 100 through the wireless communication unit 260. The wireless communication unit 260 corresponds to the wireless communication unit 160 provided in the transmitter 100 and may include a first communication channel and a second communication channel. The controller 210 receiving the authentication data for opening the door from the transmitter 100 through the wireless communication unit 260 compares the received authentication data with the authentication data stored in the memory 250, and when authentication is performed, The door lock control unit 280 is driven to release the door lock 300. In this case, the authentication data used may include device information of the transmitter 100 and a password input by the user, in addition to the biometric information input by the user. The receiver 200 may further include an emergency wired communication unit 270 capable of communicating with the transmitter 100 by wire in an emergency.

The receiver 200 is provided with a key input unit 230 so that an administrator or a user can operate a function of the receiver 200. The key input unit 230 may include a door opening button that can be pressed when a person inside the door 10 wants to open the door 10 to go out. The key input unit 230 may further include a button for registering and updating the user, a button for indicating work / coming / outing / your company, a button for managing and updating the history, and the like. Alternatively, these functions may be implemented using a touch screen. The display unit 240 is used to display the operation state of the receiver or various information for the user's operation.

The memory 250 of the receiver 200 preferably stores the unique information of the receiver 200 and the name and device number of the transmitter which is allowed to communicate with the receiver 200. In addition, a history of opening the door 10 may be stored.

The receiver 200 may be used by receiving power from a commercial power source. Although not shown, the apparatus may further include a charge / discharge unit including a battery and a charge / discharge circuit for charging the battery for operation during power failure. The apparatus may further include a voice reproducing unit configured to output guide or warning sounds related to the operation of the receiver 200 through the speaker. The receiver 200 may further include a cryptographic analysis unit for decrypting the received information.

The receiver 200 may also include an external contact sensor input unit 220 for receiving an input signal from external contact sensors for detecting whether the door lock is open or the like. The control unit 210 may transmit a warning signal using a display unit or a buzzer when the signal from the external contact sensor input unit 220 indicates that the door lock is open in a situation in which the door lock should not be opened.

Next, the operation of the door lock apparatus of the present invention will be described with reference to FIGS. 5 to 7.

After installing the transmitter 100 and the receiver 200, the other party should be registered with each other. As a method of registering the corresponding transmitter 100 and receiver 200 pairs, a method for the administrator to input corresponding device information into the transmitter 100 and the receiver 200, respectively, and the transmitter 100 and the receiver 200 Inquiry of the other party in the wireless display and then display it, the administrator can select a corresponding device to register, there may be a variety of methods such as registering in the memory by designating one transmitter-receiver pair in advance when manufacturing at the factory . 5 is an example of a method in which the administrator selects a corresponding device and registers when the sender 100 and the receiver 200 inquire the counterpart wirelessly and then display the counterpart.

First, when the receiver inquiry function is selected by operating the transmitter 100 (step 501), the transmitter 100 wirelessly transmits a code for requesting receiver information inquiry through the wireless communication unit 160 (step 503). Then, the receivers receiving these codes transmit their device information wirelessly. After receiving the transmitter 100 (step 505), the transmitter 100 displays the received information of the receiver within the predetermined time period on the display unit 140 (step 507). Then, the administrator selects a receiver to be assigned to this transmitter among the displayed receivers, and the transmitter 100 registers the selected receiver as its corresponding receiver. On the other hand, at the receiver side, a similar procedure can be followed to register the sender. Alternatively, in step 509, the transmitter 100 may transmit a registration fact to the selected receiver 200 and the receiver 200 may register the transmitter 100 as a corresponding transmitter accordingly. Alternatively, if the procedure of FIG. 5 is performed at the receiver 200 and the registration fact is transmitted from the receiver 200 to the selected transmitter 100, the transmitter 100 may register the receiver as a corresponding receiver. .

The door lock device of the present invention transmits and receives information wirelessly between the transmitter 100 and the receiver 200. Therefore, when the wireless environment worsens or an abnormality occurs in the wireless circuit, there is a possibility that an abnormality occurs in the operation of the door lock device. In view of this, in the present invention, two or more communication channels may be provided in the radio circuit units 160 and 260, and the first communication channel is normally used, and the second communication channel may be used in an emergency. The first communication channel and the second communication channel may be two wireless transmission / reception circuits of the same type, or one may be a wireless transmission / reception circuit of different types, such as Bluetooth and the other.

6 is a flowchart illustrating a process of communicating between a transmitter and a receiver through a first communication channel or a second communication channel.

First, the transmitter 100 attempts a communication connection with a registered receiver 200 through a first communication channel (step 601). If the communication channel is secured (YES in step 603), communication is performed through the corresponding channel, that is, the first communication channel (step 611). However, if the channel secured via the first communication channel fails, it is checked whether or not the predetermined number of times have failed (step 605). If the channel has not failed the predetermined number of times, the communication connection is continued through the first communication channel. That is, the transmitter 100 repeats the communication connection attempt through the first communication channel for a predetermined number of times. If the communication connection attempt for a predetermined number of times fails, then a communication connection is attempted on the second communication channel (step 607).

If the communication channel is secured (YES in step 609), communication is performed through the corresponding channel, that is, the second communication channel (step 611). However, if the channel secured via the second communication channel fails, it is checked whether or not the predetermined number of times have failed (step 613). If the channel has not failed the predetermined number of times, the communication connection is continued through the second communication channel. That is, the transmitter 100 repeats the communication connection attempt through the second communication channel for a predetermined number of times. If the communication connection attempt fails for a predetermined number of times, the process from step 601 is repeated again by notifying the outside that the communication connection has failed and rebooting (step 615).

Meanwhile, when the communication channel is secured through the process of FIG. 6, the transmitter and the receiver continue to maintain the communication channel. Therefore, since a communication channel is always formed between the transmitter and the receiver, the present invention can solve the disadvantage that it takes time to establish a communication channel between the portable transmitter and the receiver when the door is to be opened using the portable transmitter. do.

7 is a flowchart illustrating a procedure of opening a door lock when a communication channel is secured between the transmitter 100 and the receiver 200.

The user who wants to open the door 10 inputs his biometric information to the transmitter 100 (step 701). At this time, it is also possible for the user to enter his or her password or ID together. The transmitter 100 wirelessly transmits the input biometric information. At this time, it is also possible to transmit the device information of the sender, the user's password, ID and the like.

Receiving information for user authentication, the receiver 200 compares the received biometric information with the biometric information stored in the memory 250 and checks whether it is a registered person (step 703). If the user's password or ID is received together, the biometric information corresponding to the received password or ID is searched in the memory 250 to determine whether the biometric information stored in the memory corresponding to the received password or ID matches the received biometric information. It is also possible to confirm. In addition, it may be checked whether the received transmitter device information matches the registered transmitter.

If authentication is successful, the door lock 300 is controlled to open the door of the receiver 200 (step 707). If the authentication is not successful, a message indicating that an error has occurred is sent to the transmitter 100, and the transmitter 100 indicates that an error has occurred accordingly by using the display unit 140 or a buzzer.

On the other hand, whenever there is such authentication, it is also possible to store the log data in the memory of the sender or receiver. The log data may include a date and time of occurrence of a log, a user ID or password, and input biometric information.

While the present invention has been described with reference to some embodiments, these embodiments are illustrative and not restrictive. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the invention and the scope of the rights set forth in the appended claims.

As described above, in the present invention, by installing the receiver inside the door and allowing information to be exchanged wirelessly between the receiver and the transmitter, there is an effect that there is little risk of unauthorized opening of the door by disassembling or hacking the transmitter from the outside. .

In addition, since a communication channel is always formed between the transmitter and the receiver, the corresponding information can be directly transmitted to the receiver when a door opening request using the transmitter is requested. Therefore, it is possible to solve the disadvantage that it takes time to establish a communication channel when using a portable transmitter.

1a to 1c is a view showing the configuration of a conventional portable wireless biometric door lock device.

2 is a view showing a schematic configuration of a fixed wireless biometric door lock device of the present invention.

Figure 3a is a block diagram showing the internal configuration of the transmitter, Figure 3b is a view showing an example of the appearance of the transmitter.

4 is a block diagram showing an internal configuration of a receiver.

5 is a flowchart showing a procedure of registering a receiver in a transmitter.

6 is a flowchart illustrating a process of communicating between a transmitter and a receiver through a first communication channel or a second communication channel.

7 is a flowchart showing a door opening procedure in the door lock device of the present invention.

Claims (9)

The transmitter is fixed to the outside of the door and recognizes the user's biometric information and transmits the information wirelessly, A receiver fixedly installed inside the door, performing user authentication using biometric information from the transmitter, and transmitting a door open signal when the user is a registered user; Door lock to lock or open the door according to the door open signal from the receiver Door lock device having a. The method of claim 1, wherein the sender Biometric information recognition unit for receiving the user's biometric information, A wireless communication unit for wirelessly transmitting authentication information including recognized biometric information and device information including a unique number of a transmitter; A key input unit for receiving a user's operation command, A display unit for displaying the status of the transmitter; A memory for storing device information and programs necessary for operation of the device; A control unit for transmitting authentication information including the biometric information recognized through the biometric information recognition unit or the emergency authentication number input through the key input unit according to the user's operation through the wireless communication unit. Door lock device comprising a. The method of claim 1, wherein the receiver A wireless communication unit for wirelessly receiving authentication information from a transmitter; A key input unit for receiving a user's operation command, A display unit for displaying the state of the receiver; A memory for storing biometric information and programs necessary for operation of the device; A door lock driver for outputting a control signal to the door lock device; Control unit for controlling the door lock driving unit to open the door when the received authentication information is authenticated as a legitimate user Door lock device comprising a. The method of claim 2 or 3, wherein the transmitter and receiver are respectively A rectifier circuit for obtaining the necessary DC power from a commercial power supply; Battery to supply power at the time of power failure, Charge / discharge circuit for charging battery from commercial power Door lock device comprising a. The method of claim 2 or 3, wherein the transmitter and receiver are respectively Door lock device, characterized in that it further comprises an emergency wired communication unit for transmitting and receiving the authentication signal for the door opening in a wired case in an emergency. The method according to claim 2 or 3, The wireless communication unit of the transmitter and the receiver are each provided with two communication channels, The door lock device, characterized in that the communication through the other communication channel when one communication channel does not operate normally. The method according to claim 2 or 3, And a communication channel is always formed between the transmitter and the wireless communication unit of the receiver. The method of claim 3, In addition to the biometric information of the user who is allowed to open the door, the memory of the receiver is stored with the ID of the user who is allowed to open the door. The controller of the receiver searches for the user ID received from the sender together with the user's biometric information in the memory, and compares the biometric information stored in the memory with the biometric information of the received user to perform user authentication. Door lock device, characterized in that. The method of claim 3, wherein the receiver Further comprising a contact sensor input unit for receiving a signal from the sensor for detecting the opening of the door lock, And the control unit of the receiver transmits a warning signal when the signal from the contact sensor input unit indicates that the door lock is open in a situation in which the door lock should not be opened.