JP5887566B2 - Electric lock system - Google Patents

Description

  The present invention relates to an electric lock system including a tag, a tag reader, and an electric lock.

Conventionally, an electric lock comprising a tag, a tag reader that reads a tag identifier from the tag, and an electric lock that unlocks a door or the like when the tag identifier read by the tag reader matches a matching tag identifier stored in the tag reader There is a system.
As an example of a conventional electric lock system, there is a locker management system described in Patent Document 1, for example.

  In this example of the locker management system, a so-called passive tag of a type that operates by electromagnetic energy supplied from the outside without using a battery is used. On the other hand, there is a tag called a so-called active tag of a type incorporating a battery. In some electric lock systems using active tags, a tag reader transmits an LF (Low Frequency) band signal, and a tag transmits an UHF (Ultra High Frequency) band signal.

JP 2003-346241 A

  By the way, in the electric lock system, when the tag reader has a normal mode and a registration mode and receives a signal including the tag identifier from the tag during the registration mode period, the tag identifier included in the signal is used for verification. Some are stored as tag identifiers. Thereby, the user using this electric lock system can store the verification tag identifier in the tag reader by a relatively simple procedure.

In an electric lock system using a tag that transmits a UHF band signal, when the tag reader stores a verification tag identifier in the above-described procedure, the tag reader uses the verification tag from a tag that exists within the communication distance of the UHF band. A UHF band signal including the identifier is received.
However, when there is a tag that is not intended to cause the tag reader to store the tag identifier as a verification tag identifier within the communication distance of the UHF band, the tag reader transmits a signal including the tag identifier transmitted from the unintended tag. It may be received. This phenomenon occurs, for example, when the unintended tag transmits a signal including a tag identifier to another tag reader that exists nearby. As a result, the tag reader stores the tag identifier of the unintended tag as a verification tag identifier.

  Therefore, the present invention has been made in view of such problems, and an electric lock system that can reduce the possibility that a tag reader stores a tag identifier of an unintended tag as a collation tag identifier as compared with the conventional one. The purpose is to provide.

  In order to solve the above problems, an electric lock system according to the present invention is an electric lock system including one or more tags, a tag reader, and an electric lock that is unlocked by collation using collation information. The tag reader stores the tag identifier as the verification information only when a registration request signal including a tag identifier and registration request information is received from the tag.

  The tag reader further transmits an LF band registration permission signal including registration permission information during a registration mode period in which the own apparatus is in a registration mode, and the registration request signal is a UHF band signal, Transmits a registration request signal only when a registration permission signal transmitted from the tag reader is received, and the tag reader stores the storage and when the registration request signal is received during the registration mode period. It may be characterized by being performed only.

  The tag reader includes an operation receiving unit that receives a predetermined operation from a user, and when the operation receiving unit receives the predetermined operation, the tag reader receives the predetermined operation for a predetermined period from the time when the predetermined operation is received. And a mode change unit for setting the registration mode to the registration mode, and transmitting the registration permission signal when the mode is changed to the registration mode by the mode change unit.

The tag has a tag button that accepts a pressing operation from a user, and the pressing operation is accepted by the tag button after receiving the registration permission signal transmitted from the tag reader. It may be a feature that the process is performed only in the case where it is performed.
The tag may transmit the registration request signal using the registration permission information included in the registration permission signal transmitted from the tag reader as the registration request information.

  In order to solve the above problems, an electric lock system according to the present invention is an electric lock system including one or more tags, a tag reader, and an electric lock that is unlocked by collation using collation information. The tag reader transmits an LF band registration permission signal including registration permission information during the registration mode period in which the device is in the registration mode, and the tag receives the registration permission signal when receiving the registration permission signal from the tag reader. When the registration request signal is received from the tag, the tag reader is included in the registration request signal. A tag identifier is stored as the verification information.

According to the electric lock system according to the present invention having the above-described configuration, even if the tag reader receives a signal including a tag identifier from the tag, the signal is not a registration request signal including registration information, The tag identifier included in the signal is not stored as verification information.
Therefore, it is possible to store a tag identifier of a tag not intended by the tag reader as a verification tag identifier by causing the tag reader to transmit a registration request signal only to a tag intended to store the tag identifier as a verification tag identifier. Can be reduced as compared with the prior art.

The block diagram which shows the main components of the electric lock system 100 The circuit diagram which shows the main circuit structures of the tag reader 110, the electric lock 131, and the electric lock 132 Circuit diagram showing main circuit configuration of tag 121 Configuration diagram of communication signal Unlocking process flowchart Schematic diagram of specific operation example in unlocking process Flow chart of registration process Schematic diagram of specific operation example in registration process Configuration diagram of communication signal Flow chart of modified unlocking process Flow chart of first modification registration process Circuit diagram showing main circuit configuration of tag reader 1210 Circuit diagram showing main circuit configuration of tag 1321 Configuration diagram of communication signal Flow chart of second modification registration process Schematic diagram of specific operation example in second modification registration process

<Embodiment 1>
<Overview>
Hereinafter, as an embodiment of the electric lock system according to the present invention, an electric lock system including a plurality of tags, a tag reader communicating with the tags, and an electric lock for locking and unlocking the door will be described.

In this electric lock system, transmission from the tag reader to the tag is performed using an LF band radio signal, and transmission from the tag to the tag reader is performed using a UHF band radio signal.
The tag reader has a normal mode and a registration mode, and stores a verification tag identifier. When a response signal (described later) including a tag identification signal is received from the tag during the normal mode period, when the tag identification signal matches the stored verification tag identifier, the electric lock is wired. Send a lock command. When the electric lock receives an unlock command from the tag reader, the electric lock unlocks the door.

Further, when the tag reader receives a registration request signal (described later) including a tag identification signal and a registration request flag (described later) from the tag during the registration mode period, the tag reader uses the tag identification signal as a verification tag identifier. Remember.
Hereinafter, the configuration of the electric lock system according to the first embodiment will be described with reference to the drawings.

<Configuration>
FIG. 1 is a configuration diagram showing main components of the electric lock system 100.
As shown in the figure, the electric lock system 100 includes a tag reader 110, tags 121 to 123, an electric lock 131, an electric lock 132, and a door 140.
The tag reader 110 is installed on the door 140, is connected to the electric lock 131 and the electric lock 132, operates with a built-in battery, and has the following five functions.

Normal mode setting function: Function to set the operation mode to normal mode at startup.
Interrogation signal transmission function: A function of repeatedly outputting an interrogation signal (described later) in the LF band to the outside every predetermined time T1 (eg, 360 ms) during the normal mode period
Unlocking function: When a UHF band response signal including a tag identification signal is received from the tag during the normal mode period, when the tag identifier matches the matching tag identifier stored therein, the electric lock 131 and the electric lock A function to send an unlock command to 132.

Mode change function: When an operation switch 212 (described later) is pressed during the normal mode period, the mode is changed to the registration mode for a predetermined time T2 (for example, 30 s), and an LF band registration permission signal (described later) Ability to send.
Tag identifier storage function for verification: Only when a UHF band registration request signal including a tag identifier and a registration request flag is received from the tag during the registration mode period, the tag identifier is stored as a verification tag identifier. Function to do.

FIG. 2 is a circuit diagram showing main circuit configurations of the tag reader 110, the electric lock 131, and the electric lock 132.
As shown in the figure, the tag reader 110 includes a CPU (Central Processing Unit) 200, an LF band transmitting circuit 210, a UHF band receiving circuit 211, an operation switch 212, an LED (Light Emitting Diode) 213, a memory 214, a timer 215, and the like. The electric lock drive circuit 216, the electric lock drive circuit 217, the LF band antenna 221, the UHF band antenna 222, and the battery 230 are configured.

The LF band antenna 221 is, for example, a coil connected to the LF band transmission circuit 210, and is used for transmitting an LF band signal.
The LF band transmission circuit 210 is connected to the CPU 200 and the LF band antenna 221 and is controlled by the CPU 200 and has the following two functions.
Function 1: A function of modulating a signal sent from the CPU 200 into an LF band signal.

Function 2: A function of outputting a modulated LF band signal to the outside using the LF band antenna 221.
The UHF band antenna 222 is, for example, a minute loop antenna connected to the UHF band receiving circuit 211, and is used for receiving a UHF band signal.
The UHF band receiving circuit 211 is connected to the CPU 200 and the UHF band antenna 222, is controlled by the CPU 200, and has the following two functions.

Function 1: A function of receiving a UHF band signal using the UHF band antenna 222.
Function 2: A function of demodulating the received UHF band signal and sending it to the CPU 200.
The operation switch 212 is, for example, a push-type switch connected to the CPU 200, and has a function of converting an operation from the user into an electric signal and sending it to the CPU 200.
The LED 213 is connected to the CPU 200 and the lighting state is controlled by the CPU 200.

The memory 214 is connected to the CPU 200 and includes a RAM (Random Access Memory), a ROM (Read Only Memory), and a flash memory, and stores a program that defines the operation of the CPU 200 and data used by the CPU 200.
Further, the memory 214 stores a tag reader identifier of the tag reader 110, and further stores a tag identifier of a tag that is permitted to unlock the door among the tags 121 to 123 as a verification tag identifier.

The timer 215 is connected to the CPU 200, is controlled by the CPU 200, and has a function of measuring time.
The battery 230 supplies power to the electronic components that make up the tag reader 110.
The electric lock driving circuit 216 is connected to the CPU 200 and the electric lock 132 and is controlled by the CPU 200 to transmit an operation command of the electric lock 132 to the electric lock 132 and to supply power to the electric lock 132. Have

The electric lock drive circuit 217 is connected to the CPU 200 and the electric lock 131 and has the same function as the electric lock drive circuit 216.
The CPU 200 is connected to the LF band transmission circuit 210, the UHF band reception circuit 211, the operation switch 212, the LED 213, the memory 214, the timer 215, the electric lock drive circuit 216, and the electric lock drive circuit 217, and stores the program stored in the memory 214. By executing the control, the LF band transmission circuit 210, the UHF band reception circuit 211, the operation switch 212, the LED 213, the memory 214, the timer 215, the electric lock drive circuit 216, and the electric lock drive circuit 217 are controlled, and the tag reader 110 is controlled in various ways. Various functions (for example, a normal mode setting function, a question signal transmission function, an unlocking function, a mode changing function, a verification tag identifier storage function, etc.) are realized.

The electric lock 131 and the electric lock 132 have the same configuration and have the same function. Therefore, here, the electric lock is described using the electric lock 131.
The electric lock 131 is an electric lock that is installed on the door 140, is connected to the tag reader 110, and operates according to an operation command transmitted from the tag reader 110, and has a function of locking the door 140 and a function of unlocking the door 140. And have.

As shown in FIG. 2, the electric lock 131 includes a motor 241, a lock 242, and a locking / unlocking sensor 243.
The lock 242 is for locking the door 140 and is driven by a motor 241.
The locking / unlocking sensor 243 is connected to the electric lock driving circuit 217 and the motor 241 and is operated by the electric power supplied from the electric lock driving circuit 217, so that the door 140 is locked or unlocked. It has a function of detecting whether it is in a state and notifying the motor 241.

The motor 241 is connected to the electric lock driving circuit 217 and the locking / unlocking sensor 243, operates with electric power supplied from the electric lock driving circuit 216, and has the following functions.
Function 1: When the unlocking sensor 243 notifies that the door 140 is locked, when the unlocking command is transmitted from the electric lock driving circuit 217, the lock 242 is driven. A function of unlocking the door 140.

Function 2: When it is notified from the unlocking sensor 243 that the door 140 is unlocked, when the locking command is transmitted from the electric lock driving circuit 217, the lock 242 is driven. The function of locking the door 140.
Each of the tags 121 to 123 has the same configuration and has the same function. Therefore, here, the tag will be described using the tag 121.

The tag 121 operates with a built-in battery and has the following two functions.
Response signal transmission function: A function of outputting a response signal (described later) in the UHF band to the outside within a predetermined time (for example, 10 ms) after receiving the question signal when receiving the question signal in the LF band from the tag reader 110.
Registration request function: A function for outputting a registration request signal for the UHF band to the outside when a user presses a button 312 (described later) when a registration permission signal for the LF band is received from the tag reader 110.

FIG. 3 is a circuit diagram showing a main circuit configuration of the tag 121.
As shown in the figure, the tag 121 includes a CPU 300, an LF band receiving circuit 310, a UHF band transmitting circuit 311, a button 312, an LED 313, a memory 314, an LF band antenna 321, a UHF band antenna 322, and a battery 330. ing.
The LF band antenna 321 is connected to the LF band receiving circuit 310, for example, is constituted by three coils whose coil axes are orthogonal to each other, and is used for receiving an LF band signal.

The LF band receiving circuit 310 is connected to the CPU 300 and the LF band antenna 321, is controlled by the CPU 300, and has the following two functions.
Function 1: A function of receiving an LF band signal using the LF band antenna 321.
Function 2: A function of demodulating the received LF band signal and sending it to the CPU 300.
The UHF band antenna 322 is, for example, a minute loop antenna connected to the UHF band transmission circuit 311 and is used for transmitting a UHF band signal.

The UHF band transmission circuit 311 is connected to the CPU 300 and the UHF band antenna 322, is controlled by the CPU 300, and has the following two functions.
Function 1: A function of modulating a signal sent from the CPU 300 into a UHF band signal.
Function 2: A function of outputting a modulated UHF band signal to the outside using the UHF band antenna 322.

The button 312 is a push-button switch connected to the CPU 300, for example, and has a function of converting an operation from the user into an electric signal and sending it to the CPU 300.
The LED 313 is connected to the CPU 300 and the lighting state is controlled by the CPU 300.
The memory 314 is connected to the CPU 300 and includes a RAM, a ROM, and a flash memory, and stores a program that defines the operation of the CPU 300 and data that the CPU 300 uses.

The memory 314 stores a tag identifier of the tag 121.
The battery 330 supplies power to the electronic components that make up the tag 121.
The CPU 300 is connected to the LF band receiving circuit 310, the UHF band transmitting circuit 311, the button 312, the LED 313, and the memory 314, and executes a program stored in the memory 314, whereby the LF band receiving circuit 310 and the UHF band transmitting circuit 311 are executed. To allow the tag 121 to realize various functions (for example, a response signal transmission function, a registration request function, etc.).

Hereinafter, communication signals used for communication between the tag reader 110 and the tags 121 to 123 in the electric lock system 100 configured as described above will be described.
<Communication signal>
FIG. 4 is a diagram illustrating a configuration of a communication signal used for communication between the tag reader 110 and the tags 121 to 123.

As shown in the figure, communication signals used for communication between the tag reader 110 and the tags 121 to 123 include a question signal 410, a response signal 420, a registration permission signal 430, and a registration request signal 440.
The interrogation signal 410 is an LF band signal transmitted from the tag reader 110 to the tags 121 to 123, and includes a PR (PReamble) 411, a tag reader identifier 412, and a CRC (Cyclic Redundancy Check) 413.

The PR 411 is a synchronization signal indicating the start of the question signal 410, and the CRC 413 is a signal for detecting whether or not an error has occurred in the question signal 410.
The tag reader identifier 412 is a tag reader identifier of the own device stored in the tag reader (here, the tag reader 110) that transmits the question signal 410.
The transmission intensity of the LF band transmission circuit 210 and the reception sensitivity of the LF band reception circuit 310 are set in advance so that the communicable distance performed using the question signal 410 is about 1.5 m.

The response signal 420 is a UHF band signal transmitted from the tag 121 to the tag 123 to the tag reader 110, and includes a PR 421, a tag identifier 422, and a CRC 423.
PR 421 is a synchronization signal indicating the start of the response signal 420, and CRC 423 is a signal for detecting whether or not an error has occurred in the response signal 420.
The tag identifier 422 is a tag identifier of the own device stored in the tag that transmits the response signal 420.

Note that the transmission intensity of the UHF band transmission circuit 311 and the reception sensitivity of the UHF band reception circuit 211 are set in advance so that the communicable distance performed using the response signal 420 is about 20 m.
The registration permission signal 430 is an LF band signal transmitted from the tag reader 110 to the tags 121 to 123, and includes a PR 431, a tag reader identifier 432, a registration permission flag 433, and a CRC 434.

PR 431 is a synchronization signal indicating the start of the registration permission signal 430, and CRC 434 is a signal for detecting whether or not an error has occurred in the registration permission signal 430.
The tag reader identifier 432 is a tag reader identifier of its own device stored in the tag reader (here, the tag reader 110) that transmits the registration permission signal 430.
The registration permission flag 433 is a 1-bit signal indicating that the signal including this flag is the registration permission signal 430, for example, 0b1.

The transmission intensity of the LF band transmission circuit 210 and the reception sensitivity of the LF band reception circuit 310 are set in advance so that the communicable distance performed using the registration permission signal 430 is about 1.5 m.
The registration request signal 440 is a UHF band signal transmitted from the tag 121 to the tag 123 to the tag reader 110, and includes a PR 441, a tag identifier 442, a registration request flag 443, and a CRC 444.

PR441 is a synchronization signal indicating the start of the registration request signal 440, and CRC444 is a signal for detecting whether or not an error has occurred in the registration request signal 440.
The tag identifier 442 is a tag identifier of the own device stored in the tag that transmits the registration request signal 440.
The registration request flag 443 is a 1-bit signal that is 0b1, for example, indicating that the signal including this flag is the registration request signal 440.

The transmission intensity of the UHF band transmission circuit 311 and the reception sensitivity of the UHF band reception circuit 211 are set in advance so that the communicable distance performed using the registration request signal 420 is about 20 m.
Hereinafter, the operation performed by the electric lock system 100 configured as described above will be described with reference to the drawings.

<Operation>
Here, the unlocking process and the registration process, which are characteristic operations among the operations performed by the electric lock system 100, will be described.
<Unlocking process>
The unlocking process is a process in which the tag reader 110 reads the tag identifier from any one of the tags 121 to 123, and when the read tag identifier matches the collation tag identifier stored, the door 140 is brought into an unlocked state. It is.

FIG. 5 is a flowchart of the unlocking process.
The unlocking process is started when the tag reader is activated and the operation mode of the tag reader 110 is set to the normal mode in a state where the door 140 is locked by the electric lock 131 and the electric lock 132.
When the unlocking process is started, the tag reader 110 initializes the timer 215 (step S500), starts time measurement, and transmits an LF band interrogation signal from the LF band transmission circuit 210 to the outside (step S510). .

When the interrogation signal is transmitted, the tag reader 110 receives a response signal transmitted from one of the tags in response to the transmitted interrogation signal up to a predetermined time T1 (for example, 360 ms) after initialization of the timer 215. Wait (step S520).
When a tag exists within the communication distance (for example, 1.5 m) of the LF band interrogation signal transmitted from the tag reader 110, the tag receives the interrogation signal and transmits a UHF band response signal. Conversely, when no tag exists within the communication distance of the LF band interrogation signal transmitted from the tag reader 110, no UHF band response signal is transmitted.

In the process of step S520, when the tag reader 110 receives the response signal (step S520: Yes), the tag reader 110 confirms that the tag identifier included in the received response signal matches the unlocking permission tag identifier to be stored. Whether or not is checked (step S530).
In the process of step S530, when the tag identifier included in the received response signal matches the unlock permission tag identifier (step S530: Yes), the tag reader 110 includes the electric lock drive circuit 216 and the electric lock drive circuit 217. The unlock command is transmitted to the electric lock 131 and the electric lock 132, respectively (step S540). Then, each of the electric lock 131 and the electric lock 132 receives the unlock command from the tag reader 110 and unlocks the door 140.

When the unlock command is transmitted, the tag reader 110 waits until a predetermined time T2 (for example, 30 s: T2> T1) elapses after the initialization of the timer 215 (step S550).
When a predetermined time T2 elapses after the initialization of the timer 215, the tag reader 110 transmits a locking command from the electric lock driving circuit 216 and the electric lock driving circuit 217 to the electric lock 131 and the electric lock 132, respectively (step S560). ). Then, each of the electric lock 131 and the electric lock 132 receives the locking command from the tag reader 110 and locks the door 140.

In the process of step S530, when the tag identifier included in the received response signal does not match the unlocking permission tag identifier (step S530: No), the process returns to the process of step S520 again, and the processes after step S520 are continued. .
In the process of step S520, when the tag reader 110 has not received a response signal (step S520: No), or when the process of step S560 is completed, the process returns to the process of step S500 again, and the processes after step S500 are performed. Do.

FIG. 6 is a schematic diagram schematically showing a specific operation example of the tag reader 110 and the tags 121 to 123 in the unlocking process performed by the electric lock system 100.
Hereinafter, an explanation of the unlocking process performed by the electric lock system 100 will be supplemented using FIG. 6.
(1) Example in which tag A that stores a tag identifier that matches the unlock permission tag identifier stored in tag reader 110 exists within the communication distance of the LF band interrogation signal transmitted from tag reader 110 (time t0 Period of time t1).

At time t0, the tag reader 110 initializes the timer 215 (step S500), starts time measurement, and transmits an LF band inquiry signal from the LF band transmission circuit 210 to the outside (step S510).
Since the tag A exists within the communication distance of the LF band interrogation signal transmitted from the tag reader 110, the tag A receives the interrogation signal and transmits a UHF band response signal within 10 ms, for example.

  Then, the tag reader 110 receives the response signal in the UHF band within a predetermined time T1 after the initialization of the timer 215 (step S520: Yes). Then, since the tag identifier included in the received response signal matches the unlocking permission tag identifier to be stored (step S530: Yes), the tag reader 110 transmits the unlocking command to the electric lock 131 and the electric lock 132. (Step S540). Then, each of the electric lock 131 and the electric lock 132 unlocks the door 140.

Thereafter, the tag reader 110 waits until a predetermined time T2 elapses after the initialization of the timer 215 (step S550), and transmits a locking command to the electric lock 131 and the electric lock 132 (step S560). Then, each of the electric lock 131 and the electric lock 132 locks the door 140.
(2) Example in which there is no tag storing a tag identifier that matches the unlock permission tag identifier stored in the tag reader 110 within the communication distance of the LF band inquiry signal transmitted from the tag reader 110 (time t2 to time period of t3).

At time t2, the tag reader 110 initializes the timer 215 (step S500), starts time measurement, and transmits an LF band inquiry signal from the LF band transmission circuit 210 to the outside (step S510).
Since there is no tag within the communication distance of the LF band interrogation signal transmitted from the tag reader 110, the UHF band response signal is not transmitted from the tag within the predetermined time T1 after the initialization of the timer 215.

Accordingly, since the tag reader 110 does not receive a UHF band response signal from the tag within the predetermined time T1 after the initialization of the timer 215 (step S520: No), the tag reader 110 is released to the electric lock 131 and the electric lock 132. Do not send lock command. Therefore, the door 140 is not unlocked.
<Registration process>
The registration process is a process in which the tag reader 110 reads a tag identifier from a tag storing a tag identifier to be stored as a verification tag identifier and stores it as a verification tag identifier.

FIG. 7 is a flowchart of the registration process.
The registration process is started when the operation switch 212 is pressed while the operation mode of the tag reader 110 is the normal mode.
When the registration process is started, the tag reader 110 changes the operation mode to the registration mode (step S700). Then, the tag reader 110 turns on the LED 213 to indicate that its own device is in the registration mode, initializes the timer 215 (step S710), starts time measurement, and sends the LF band from the LF band transmission circuit 210 to the outside. The registration permission signal is transmitted (step S720).

When the registration permission signal is transmitted, the tag reader 110 sets a registration request signal transmitted from any tag in response to the transmitted registration permission signal, with an elapse of a predetermined time T3 (for example, 30 s) after initialization of the timer 215 as an upper limit. Is received (step S730).
If the tag exists within the communication distance of the LF band registration permission signal transmitted from the tag reader 110, the tag receives the registration permission signal. When the button 312 is pressed in the tag that has received the registration permission signal, the tag transmits a UHF band registration request signal.

When there is no tag within the communication distance of the LF band registration permission signal transmitted from the tag reader 110, or the tag 312 is not pressed within a predetermined time T3 after the initialization of the timer 215 in the tag that has received the registration permission signal. In this case, the UHF band registration request signal is not transmitted.
In addition, a user who intends to store the tag identifier of the owned tag in the tag reader 110 as a matching tag identifier needs to perform the following three operations in order to transmit a registration request signal from the tag to the tag reader 110. There is.

That is, (1) First, the operation switch 212 of the tag reader 110 is pressed. (2) A tag having the tag identifier is brought close to the tag reader 110 (for example, a range within 1.5 m). (3) Further, the button 312 of the tag is pressed within a predetermined time T3 after the operation switch 212 of the tag reader 110 is pressed.
When the registration request signal is received within the predetermined time T3 after the initialization of the timer 215 in the process of step S730 (step S730: Yes), the tag reader 110 includes the registration request flag in the received registration request signal. It is checked whether or not (step S740).

When the registration request flag is included in the received registration request signal in the process of step S740 (step S740: Yes), the tag reader 110 uses the tag identifier included in the received registration request signal as a verification tag. This is stored as an identifier (step S750).
In the process of step S740, when the registration request flag is not included in the received registration request signal (step S740: No), or when the process of step S750 ends, the tag reader 110 performs the initialization of the timer 215. It is checked whether or not it is within the predetermined time T3 (step S760).

In the process of step S760, when it is within the predetermined time T3 after the initialization of the timer 215 (step S760: Yes), the process returns to the process of step S730 again, and the processes after step S730 are performed.
If the registration request signal is not received within the predetermined time T3 after the initialization of the timer 215 in the process of step S730 (step S730: No), or the predetermined time T3 after the initialization of the timer 215 in the process of step S760. If not (step S760: No), the tag reader 110 turns off the LED 213 (step S770), and changes the operation mode to the normal mode (step S780).

When the process of step S780 ends, the electric lock system 100 ends the registration process.
FIG. 8 is a schematic diagram schematically showing a specific operation example of the tag reader 110 and the tags 121 to 123 in the registration process performed by the electric lock system 100.
Hereinafter, the registration processing performed by the electric lock system 100 will be supplemented with reference to FIG.

(1) An example in which a tag existing within the communication distance of an LF band registration permission signal transmitted from the tag reader 110 receives the registration permission signal, and the button 312 of the tag is pressed after 10 seconds (time t4 to t4) (Period of time t5).
When the operation switch 212 of the tag reader 110 in the normal mode is pressed at time t4, the tag reader 110 changes the operation mode to the registration mode (step S700). Then, the tag reader 110 turns on the LED 213, initializes the timer 215 (step S710), starts time measurement, and transmits an LF band registration permission signal from the LF band transmission circuit 210 to the outside (step S720).

Since tag A exists within the communication distance of the LF band registration permission signal transmitted from tag reader 110, tag A receives the registration permission signal. After 10 seconds, the button A 312 is pressed, and the tag A transmits a UHF band registration request signal.
Then, the tag reader 110 receives the UHF band registration request signal within the predetermined time T3 (step S730: Yes). Since the registration request flag is included in the received registration request signal (step S740: Yes), the tag reader 110 stores the tag identifier included in the received registration request signal as a verification tag identifier (step S750). ).

Thereafter, the tag reader 110 does not receive a new registration request signal until the predetermined time T3 has elapsed (step S760: Yes to step S730: No). Therefore, the tag reader 110 turns off the LED 213 (step S770), and changes the operation mode to the normal mode (step S780).
(2) Example in which tag present within communication distance of LF band registration permission signal transmitted from tag reader 110 receives registration permission signal, but button 312 of the tag is not pressed (time t6 to time t7) .

  When the operation switch 212 of the tag reader 110 in the normal mode is pressed at time t4, the tag reader 110 changes the operation mode to the registration mode (step S700). Then, the tag reader 110 turns on the LED 213, initializes the timer 215 (step S710), starts time measurement, and transmits an LF band registration permission signal from the LF band transmission circuit 210 to the outside (step S720).

Since tag A exists within the communication distance of the LF band registration permission signal transmitted from tag reader 110, tag A receives the registration permission signal. However, the tag A does not transmit the UHF band registration request signal because the button 312 is not pressed.
Since the tag reader 110 does not receive the UHF band registration request signal within the predetermined time T3 (step S730: No), the tag reader 110 does not store the tag identifier as a verification tag identifier.

Then, the tag reader 110 turns off the LED 213 (step S770), and changes the operation mode to the normal mode (step S780).
<Discussion>
According to the electric lock system 100, the tag reader 110 stores the tag identifier as a verification tag identifier only when a registration request signal including a tag identifier and a registration request flag is received during the registration mode period.

Even if the tag reader 110 during the registration mode period receives a signal including a tag identifier from an unintended tag, the tag reader 110 does not use the tag reader unless the signal is a registration request signal including a registration request flag. The identifier is not stored as a verification tag identifier.
Therefore, the possibility that the tag reader 110 stores the tag identifier of an unintended tag as a verification tag identifier is reduced as compared with the conventional electric lock system.
<Embodiment 2>
<Overview>
Hereinafter, as an example of the electric lock system according to the present invention, a first modified electric lock system obtained by modifying a part of the electric lock system 100 according to the first embodiment will be described.

The first modified electric lock system according to the second embodiment has the same hardware configuration as that of the electric lock system 100 according to the first embodiment, but a part of the executed software is The electric lock system 100 according to the first embodiment is modified.
The electric lock system 100 according to Embodiment 1 is an example of a configuration in which the response signal 420 transmitted by the tag and the registration permission signal 430 do not include the tag reader identifier of the tag reader to be communicated. In contrast, the first modified electric lock system according to the second embodiment is an example of a configuration in which the response signal transmitted by the tag and the registration permission signal include the tag reader identifier of the tag reader to be communicated.

Hereinafter, the configuration of the first modified electric lock system according to the second embodiment will be described with reference to the drawings, focusing on differences from the electric lock system 100 according to the first embodiment.
<Configuration>
The first modified electric lock system has the same hardware configuration as the electric lock system 100 according to the first embodiment. Therefore, the description is omitted here. Moreover, below, the description which concerns on the component which comprises the hardware of a 1st deformation | transformation electric lock system is performed using the same code | symbol as each component which comprises the hardware of the electric lock system 100 which concerns on Embodiment 1. FIG. .

<Communication signal>
FIG. 9 is a diagram illustrating a configuration of a communication signal used for communication between the tag reader 110 and the tags 121 to 123.
As shown in the figure, communication signals used for communication between the tag reader 110 and the tags 121 to 123 include a question signal 910, a response signal 920, a registration permission signal 930, and a registration request signal 940.

Among these, the question signal 910 and the registration permission signal 930 are the same as the question signal 410 and the registration permission signal 430 according to the first embodiment, respectively. Therefore, the description is omitted here.
The response signal 920 is modified so that a tag reader identifier 950 is added to the response signal 420 (see FIG. 4) according to the first embodiment.

The tag reader identifier 950 is a tag reader identifier included in the question signal received by the tag that transmits the response signal 920 prior to the transmission of the response signal 920.
The registration request signal 940 is modified from the registration request signal 440 according to Embodiment 1 so that a tag reader identifier 960 is added.
The tag reader identifier 960 is a tag reader identifier included in the registration permission signal received by the tag that transmits the registration request signal 940 prior to the transmission of the registration request signal 940.

<Operation>
The first modified electric lock system includes a modified unlocking process in which a part of the process is modified from the unlocking process performed by the electric lock system 100 according to the first embodiment and a part of the registration process performed by the electric lock system 100. A first modification registration process in which the process is modified is performed.
Hereinafter, the modified unlocking process and the first modified registration process will be described with reference to the drawings.

<Deformation unlocking process>
Similar to the unlocking process according to the first embodiment, the modified unlocking process is performed by the tag reader 110 reading the tag identifier from any one of the tags 121 to 123, and the read tag identifier matches the matching tag identifier stored. In this case, the door 140 is unlocked.
FIG. 10 is a flowchart of the modified unlocking process.

The modified unlocking process is obtained by adding a process (described later) in step S1035 to the unlocking process according to the first embodiment.
The processing from step S1000 to step S1030 is equivalent to the processing from step S500 to step S530 (see FIG. 5) in the unlocking processing according to the first embodiment. And the process of step S1040-step S1060 is a process equivalent to the process of step S540-step S560 in the unlocking process which concerns on Embodiment 1. FIG. Therefore, description of these processes is omitted here.

In the modified unlocking process, the following process in step S1035 is inserted between the process in step S1030 and the process in step S1040.
In the process of step S1030, when the tag identifier included in the received response signal matches the unlocking permission tag identifier (step S1030: Yes), the tag reader 110 includes the tag reader identifier included in the received response signal. It is checked whether or not the tag reader identifier stored in the apparatus matches (step S1035).

In the process of step S1035, when it matches the tag reader identifier stored in the own device (step S1035: Yes), the process of step S1040 is started.
In the process of step S1035, when it does not match the tag reader identifier stored in the own apparatus (step S1035: No), the process returns to the process of step S1020 again, and the processes after step S1020 are continued.

<First modification registration process>
As in the registration process according to the first embodiment, the first modification registration process is performed by the tag reader 110 reading the tag identifier from the tag storing the tag identifier that the tag reader 110 wants to store as the verification tag identifier. This is a process of storing as an identifier.
FIG. 11 is a flowchart of the first modification registration process.

In the first modification registration process, a process (described later) in step S1135 is added to the registration process according to the first embodiment.
The processing in steps S1100 to S1130 is equivalent to the processing in steps S700 to S730 (see FIG. 7) in the registration processing according to the first embodiment. And the process of step S1140-step S1180 is a process equivalent to the process of step S740-step S780 in the registration process which concerns on Embodiment 1. FIG. Therefore, description of these processes is omitted here.

In the first modification registration process, the following process of step S1135 is inserted between the process of step S1130 and the process of step S1140.
In the process of step S1130, when the registration request signal is received within the predetermined time T3 after the initialization of the timer 215 (step S1130: Yes), the tag reader 110 indicates that the tag reader identifier included in the received registration request signal is the own device. It is checked whether or not it matches the tag reader identifier stored in step S1135.

In the process of step S1135, when it matches the tag reader identifier stored in the own apparatus (step S1135: Yes), the process of step S1140 is started.
In the process of step S1135, when the tag reader identifier stored in the own apparatus does not match (step S1135: No), the process of step S1160 is started.
<Embodiment 3>
<Overview>
Hereinafter, the 2nd deformation | transformation electric lock system which deform | transformed a part of electric lock system 100 which concerns on Embodiment 1 as an example of the electric lock system which concerns on this invention is demonstrated.

In the second modified electric lock system according to the third embodiment, a part of the hardware configuration is modified from the electric lock system 100 according to the first embodiment, and a part of the executed software is implemented. The electric lock system 100 according to the first embodiment is modified.
The electric lock system 100 according to the first embodiment is an example of a configuration in which a registration request signal transmitted by a tag is a UHF band signal. In contrast, in the second modified electric lock system according to the third embodiment, the registration request signal transmitted by the tag is generated using the electromagnetic energy of the LF band registration permission signal received prior to transmission. It is an example of the structure used as the signal of LF band.

Hereinafter, the configuration of the second modified electric lock system according to the third embodiment will be described with reference to the drawings with a focus on differences from the electric lock system 100 according to the first embodiment.
<Configuration>
In the second modified electric lock system, the tag reader 110 is transformed into a tag reader 1210 from the electric lock system 100 according to the first embodiment, and the tags 1211 to 123 are transformed into tags 1321 to 1323, respectively.

FIG. 12 is a circuit diagram showing a main circuit configuration of the tag reader 1210.
As shown in the figure, the tag reader 1210 is obtained by changing the LF band transmission circuit 210 to the LF band transmission / reception circuit 1211 from the tag reader 110 (see FIG. 2) according to the first embodiment.
In addition to the two functions of the tag reader 110, the LF band transmission / reception circuit 1211 further has the following two functions.

Function 3: A function of receiving an LF band signal using the LF band antenna 221.
Function 4: A function of demodulating the received LF band signal and sending it to the CPU 200.
Further, a part of the program stored in the memory 214 and executed by the CPU 200 is modified. In addition to the normal mode setting function, the question signal transmission function, the mode change function, and the unlocking function of the tag reader 110, the tag reader 1210 is further modified in part of the verification tag identifier storage function. It has the following modification verification tag identifier storage function.

Deformation verification tag identification function: Stores the tag identifier as a verification tag identifier only when an LF band LF registration request signal (described later) including the tag identifier is received from the tag during the registration mode period. function.
Each of the tags 1321 to 1323 has the same configuration and has the same function. Therefore, here, the tag will be described using the tag 1321.

FIG. 13 is a circuit diagram showing a main circuit configuration of the tag 1321.
As shown in the figure, tag 1321 is modified from tag 121 according to Embodiment 1 (see FIG. 3) such that LF band transmission circuit 1310 and electromotive circuit 1320 are added. .
The electromotive circuit 1320 is connected to the LF band receiving circuit 310 and the LF band transmitting circuit 1310 and has the following functions.

Function: When the LF band receiving circuit 310 receives an LF band signal using the LF band antenna 321, it generates power using the electromagnetic energy of the received LF band signal, and transmits the generated power to the LF band. Function to supply to the circuit 1310.
The LF band transmission circuit 1310 is connected to the CPU 300, the electromotive circuit 1320, and the LF band antenna 321, operates with power supplied from the electromotive circuit 1320, is controlled by the CPU 300, and has the following two functions.

Function 1: A function of modulating a signal sent from the CPU 300 into an LF band signal.
Function 2: A function of outputting a modulated LF band signal to the outside using the LF band antenna 321.
Here, the LF band signal transmitted by the LF band transmission circuit 1310 is about 2 cm because the LF band transmission circuit 1310 operates with relatively little power generated by the electromotive circuit 1320. It is a relatively short distance.

Further, a part of the program stored in the memory 314 and executed by the CPU 300 is modified. The tag 1321 is partly modified from the tag 121 according to Embodiment 1, has a normal mode and a registration mode, and has the following three functions.
Modified response signal transmission function: When a question signal in the LF band is received from the tag reader 1210 during the normal mode period, a response signal in the UHF band is output to the outside within a predetermined time (for example, 10 ms) after receiving the question signal. function.

Mode conversion function: A function that sets the operation mode to the registration mode only for a predetermined time T4 (for example, 60 s) when a predetermined operation (for example, a double-click operation of the button 312) is received from the user during the normal mode period. .
Modified registration request function: A function of outputting an LF band LF registration request signal to the outside when an LF band LF registration permission signal is received from the tag reader 1210 during the registration mode period.

<Communication signal>
FIG. 14 is a diagram illustrating a configuration of a communication signal used for communication between the tag reader 1210 and the tags 1321 to 1323.
As shown in the figure, communication signals used for communication between the tag reader 1210 and the tags 1321 to 1323 include a question signal 1410, a response signal 1420, a registration permission signal 1430, and an LF registration request signal 1440.

Among these, the question signal 1410 and the response signal 1420 are the same as the question signal 410 and the response signal 420 according to Embodiment 1, respectively. Therefore, the description is omitted here.
The registration permission signal 1430 is a modification of the registration permission signal 430 (see FIG. 4) according to the first embodiment so that the registration permission flag 433 is deleted.

The LF registration request signal 1440 is modified such that the registration request flag 443 is deleted from the registration request signal 440 according to the first embodiment, and the frequency band of the carrier wave is modified from the UHF band to the LF band. It has been done.
The transmission intensity of the LF band transmission circuit 1310 and the reception sensitivity of the LF band transmission / reception circuit 1211 are set in advance so that the communicable distance performed using the LF registration request signal 1440 is about 2 cm.

<Operation>
The second modified electric lock system includes a process similar to the unlocking process performed by the electric lock system 100 according to the first embodiment and the second modified registration obtained by modifying a part of the process from the registration process performed by the electric lock system 100. Process.
Hereinafter, the second modification registration process will be described with reference to the drawings.

<Second modification registration process>
In the second modified registration process, the tag reader 1210 reads the tag identifier from any of the tags 1321 to 1323 and stores the read tag identifier as a verification tag identifier, as in the registration process according to the first embodiment. It is processing.
FIG. 15 is a flowchart of the second modification registration process.

The second modification registration process is started when the operation switch 212 is pressed while the operation mode of the tag reader 1210 is the normal mode.
When the registration process is started, the tag reader 1210 changes the operation mode to the registration mode (step S1500). Then, the tag reader 1210 turns on the LED 213 to indicate that the own device is in the registration mode, initializes the timer 215, and starts measuring a predetermined time T5 (for example, 30 s) (step S1510). Further, the tag reader 1210 newly starts measuring a predetermined time T6 (for example, 50 ms) (step S1520).

When the process of step S1520 ends, the tag reader 1210 transmits an LF band registration permission signal from the LF band transmission circuit 210 to the outside (step S1530).
When the registration permission signal is transmitted, the tag reader 1210 uses an LF registration request signal transmitted from one of the tags in response to the transmitted registration permission signal, with the elapse of the predetermined time T6 after the start of the measurement of the new predetermined time T6 as an upper limit. (Step S1540).

If a tag in the registration mode exists within the communication distance (for example, 1.5 m) of the LF band registration permission signal transmitted from the tag reader 1210, the tag receives the registration permission signal and receives the LF band LF. Send a registration request signal.
Here, the LF registration request signal is transmitted by the LF band transmission circuit 1310 that operates by the power generated by the electromotive circuit 1320. For this reason, the communication distance is about 2 cm. Therefore, the tag reader 1210 receives only the LF registration request signal transmitted from the tag held near the tag reader 1210 (within about 2 cm).

When there is no tag in the registration mode within the communication distance of the registration permission signal of the LF band transmitted from the tag reader 1210, or the tag that has received the registration permission signal is not held near the tag reader 1210 (within about 2 cm). In this case, the tag reader 1210 does not receive the LF registration request signal from the tag.
Note that a user who intends to store the tag identifier of the owned tag in the tag reader 1210 as a matching tag identifier causes the tag reader 1210 to receive the LF registration request signal transmitted from the tag in the following 3 Need to do one operation.

That is, (1) Double-clicking the button 312 of the tag owned. (2) The operation switch 212 of the tag reader 1210 is pressed. (3) Hold the tag close to the tag reader 1210 (within about 2 cm) within a predetermined time T4 from the double click operation of the button 312 and within a predetermined time T5 after the button button 312 is double clicked.
In the process of step S1540, when the LF registration request signal is received within the predetermined time T6 after the start of the measurement of the new predetermined time T6 (step S1540: Yes), the tag identifier included in the LF registration request signal is used for verification. Stored as a tag identifier (step S1550).

In the process of step S1540, when the LF registration request signal is not received within the predetermined time T6 after the start of the measurement of the new predetermined time T6 (step S1540: No), or when the process of step S1550 is completed, the tag reader 1210 checks whether or not the predetermined time T5 is within the predetermined time T5 after the start of measurement (step S1560).
In the process of step S1560, when it is within the predetermined time T5 after the predetermined time T5 measurement is started (step S1560: Yes), the process returns to the process of step S730 again, and the processes after step S730 are performed.

In step S1560, when the measurement is not within the predetermined time T5 after the start of measurement for the predetermined time T5 (step S1560: No), the tag reader 1210 turns off the LED 213 (step S1570), and changes the operation mode to the normal mode (step S1580). ).
When the process of step S1580 ends, the second modified electric lock system ends the second modified registration process.

FIG. 16 is a schematic diagram schematically showing a specific operation example of the tag reader 1210 and the tags 1321 to 1323 in the second modified registration process performed by the second modified electric lock system.
Hereinafter, the second modification registration process performed by the second modified electric lock system will be supplemented with reference to FIG.
(1) An example in which a tag in the registration mode is held over the tag reader 1210 within a predetermined time T5 after the tag reader 1210 is pressed down on the operation switch 212 (period from time t8 to time t9).

  When the operation switch 212 of the tag reader 1210 in the normal mode is pressed at time t8, the tag reader 1210 changes the operation mode to the registration mode (step S1500). Then, the tag reader 1210 turns on the LED 213 and starts measuring the predetermined time T5 (step S1510). Thereafter, the tag reader 1210 repeatedly transmits a registration permission signal every predetermined time T6 (step S1520 to step S1540: No to step S1560: Yes is repeated).

  While the tag reader 1210 repeatedly transmits the registration permission signal, the tag in the registration mode is held over the tag reader 1210. Therefore, the tag reader 1210 receives the LF registration request signal transmitted from the tag (step S1540: Yes). ) Then, the tag reader stores the tag identifier included in the LF registration request signal as a verification tag identifier (step S1550).

Thereafter, when the predetermined time T5 has elapsed (step S1560: No), the tag reader 1210 turns off the LED 213 (step S1570) and changes the operation mode to the normal mode (step S1580).
(2) An example in which the tag in the registration mode is not held over the tag reader 1210 within a predetermined time T5 after the tag reader 1210 has pressed the operation switch 212 (period from time t10 to time t11).

  When the operation switch 212 of the tag reader 1210 in the normal mode is pressed at time t10, the tag reader 1210 changes the operation mode to the registration mode (step S1500). Then, the tag reader 1210 turns on the LED 213 and starts measuring the predetermined time T5 (step S1510). Thereafter, the tag reader 1210 repeatedly transmits a registration permission signal every predetermined time T6 (step S1520 to step S1540: No to step S1560: Yes is repeated).

Since the tag in the registration mode is not held over the tag reader 1210 while the tag reader 1210 repeatedly transmits the registration permission signal, the tag reader 1210 does not receive the LF registration request signal.
When the predetermined time T5 has elapsed (step S1560: No), the tag reader turns off the LED 213 without storing the verification tag identifier (step S1570), and changes the operation mode to the normal mode (step S1580).

<Discussion>
According to the second modified electric lock system, the tag reader 1210 can only receive the registration request signal transmitted from the tag by the registration request signal from the tag that the user holds over the tag reader with the intention of storing the tag identifier. Will be done.
Therefore, the possibility that the tag reader 1210 stores the tag identifier of an unintended tag as a verification tag identifier is reduced as compared with the conventional electric lock system.
<Supplement>
Hereinafter, as an embodiment of the electric lock system according to the present invention, three examples of the electric lock system have been described in the first embodiment, the second embodiment, and the third embodiment. However, the following modifications may be made. Is also possible. It goes without saying that the present invention is not limited to the electric lock system as shown in the first embodiment, the second embodiment, and the third embodiment.
(1) In the first embodiment, the electric lock system 100 is an example of a configuration in which the question signal 410 and the registration permission signal 430 are signals in the LF band. It is not necessary to be limited to.

However, since these signals are LF band signals, it is possible to relatively easily narrow down the communicable distance of these signals.
In the first embodiment, the electric lock system 100 is an example of a configuration in which the response signal 420 and the registration request signal 440 are UHF band signals. However, if the radio lock signal is a radio signal, the electric lock system 100 is not necessarily limited to the UHF band signal. There is no need to be limited.

However, since these signals are UHF band signals, a transmission circuit, a reception circuit, an antenna, and the like can be realized relatively easily.
(2) In the first embodiment, the registration permission flag 433 is an example of a configuration that is a 1-bit signal that indicates, for example, 0b1 indicating that it is a registration permission signal. However, as long as it is a signal indicating that it is a registration permission signal, it is not necessarily limited to a 1-bit signal. For example, it may be a signal composed of a plurality of predetermined bits.
(3) In the first embodiment, the registration request flag 443 is an example of a configuration that is a 1-bit signal indicating 0b1, for example, indicating that it is a registration request signal. However, as long as it is a signal indicating that it is a registration request signal, it is not necessarily limited to a 1-bit signal. For example, it may be a signal composed of a plurality of predetermined bits.
(4) Further, in the first embodiment, the registration permission flag 433 is a bit string whose value is set at random every time the registration permission signal is transmitted, and the registration request flag 443 is prior to transmission of the registration request signal. It may be a bit string that matches the registration permission flag included in the received registration request signal.

With this configuration, even if there are a plurality of tag readers, each tag reader receives a registration request signal transmitted from its own device when receiving a registration request signal from the tag. It becomes possible to distinguish whether it is a permission signal or not.
(5) In the third embodiment, the electromotive circuit 1320 is an example of a configuration that supplies the generated power to the LF band transmission circuit 1310. However, the power supply destination need not be limited to the LF band transmission circuit 1310 as long as the generated power can be supplied to at least the LF band transmission circuit 1310. For example, an example of a configuration in which the power supply destination is the LF band transmission circuit 1310, the CPU 300, and the memory 314 can be considered. In such a configuration, a circuit to which power is supplied from the LF band transmission circuit 1310 is not supplied with power from the battery 330.
(6) In the first embodiment, the tag reader 110 is an example of a configuration including the operation switch 212 that converts an operation from the user into an electric signal. However, the operation switch 212 is not necessarily limited to an interface called a switch as long as it has a function of converting an operation from a user into an electric signal, and may be a touch pad, for example.

In the first embodiment, the tag 121 is an example of a configuration including a button 312 that converts an operation from a user into an electric signal. However, the button 312 is not necessarily limited to the button interface as long as it has a function of converting a user operation into an electrical signal, and may be a touch pad, for example.
(7) Hereinafter, the configuration of the electric lock system according to the embodiment of the present invention, its modified examples, and each effect will be described.

(A) An electric lock system according to an embodiment of the present invention is an electric lock system including one or more tags, a tag reader, and an electric lock unlocked by collation using collation information, The tag reader stores the tag identifier as the verification information only when a registration request signal including a tag identifier and registration request information is received from the tag.
According to the electric lock system according to the present embodiment having the above-described configuration, even when the tag reader receives a signal including a tag identifier from the tag, the signal must be a registration request signal including registration information. For example, the tag identifier included in the signal is not stored as verification information.

Therefore, it is possible to store a tag identifier of a tag not intended by the tag reader as a verification tag identifier by causing the tag reader to transmit a registration request signal only to a tag intended to store the tag identifier as a verification tag identifier. Can be reduced as compared with the prior art.
(B) Further, the tag reader further transmits an LF band registration permission signal including registration permission information during a registration mode period in which the own apparatus is in the registration mode, and the registration request signal is a UHF band signal. The tag transmits a registration request signal only when the registration permission signal transmitted from the tag reader is received. The tag reader stores the registration request signal during the registration mode period. It is good also as a feature to carry out only in the case of.

By adopting such a configuration, only a tag existing within a range for receiving an LF band signal transmitted from the tag reader during the registration mode period transmits the registration request signal.
Therefore, it is possible to further reduce the possibility of storing a tag identifier of a tag that is not intended by the tag reader as a verification tag identifier.

  (C) In addition, the tag reader receives a predetermined operation from a user, and when the operation reception unit receives the predetermined operation, the tag reader receives a predetermined period from the time when the predetermined operation is received. And a mode change unit that sets the tag reader to the registration mode, and the registration permission signal is transmitted when the registration mode is set by the mode change unit.

With such a configuration, the tag reader enters the registration mode only during the period intended by the user.
Therefore, it is possible to further reduce the possibility of storing a tag identifier of a tag that is not intended by the tag reader as a verification tag identifier.
(D) The tag includes a tag button that accepts a pressing operation from a user. The tag request button transmits the registration request signal after receiving the registration permission signal transmitted from the tag reader. It may be performed only when an operation is accepted.

With this configuration, the tag transmits the registration request signal only when the user intends, even when the tag receives the registration permission signal.
Therefore, it is possible to further reduce the possibility of storing a tag identifier of a tag that is not intended by the tag reader as a verification tag identifier.
(E) The tag may transmit the registration request signal using the registration permission information included in the registration permission signal transmitted from the tag reader as the registration request information. .

With this configuration, the tag reader uses the registration request information included in the registration permission signal received from the tag as the registration permission information included in the registration permission signal transmitted by the device itself.
Therefore, even if there are a plurality of tag readers, each of the tag readers is a registration permission signal responding to the registration request signal transmitted from its own device when receiving the registration request signal from the tag. It becomes possible to distinguish whether or not.

  (F) An electric lock system according to an embodiment of the present invention is an electric lock system including one or more tags, a tag reader, and an electric lock that is unlocked by collation using collation information, The tag reader transmits an LF band registration permission signal including registration permission information during the registration mode period in which the device is in the registration mode, and the tag receives the registration permission signal when receiving the registration permission signal from the tag reader. When the registration request signal is received from the tag, the tag reader is included in the registration request signal. A tag identifier is stored as the verification information.

According to the electric lock system according to the present embodiment having the above-described configuration, the propagation range of the registration request signal transmitted by the tag is relatively short (about several centimeters).
Therefore, the tag reader receives the registration request signal transmitted from the tag only for the registration request signal from the tag that the user holds over the tag reader with the intention of storing the tag identifier. As a result, the possibility of storing the tag identifier of the tag that is not intended by the tag reader as a collation tag identifier is reduced as compared with the prior art.

DESCRIPTION OF SYMBOLS 100 Electric lock system 110 Tag reader 121-123 Tag 131,132 Electric lock 140 Door 200 CPU
210 LF band transmitter circuit 211 UHF band receiver circuit 212 Operation switch 213 LED
214 Memory 215 Timer 216 to 217 Electric lock drive circuit 221 LF band antenna 222 UHF band antenna 230 Battery 241 251 Motor 242 252 Lock 243 253 Locking / unlocking sensor 300 CPU
310 LF band receiving circuit 311 UHF band transmitting circuit 312 button 313 LED
314 Memory 321 LF band antenna 322 UHF band antenna 330 Battery

Claims (5)

An electric lock system comprising one or more tags, a tag reader, and an electric lock unlocked by collation using collation information,
The tag reader stores the tag identifier as the verification information only when a registration request signal including a tag identifier and registration request information is received from the tag .
The tag reader further transmits an LF band registration permission signal including registration permission information during a registration mode period in which the own device is in a registration mode.
The registration request signal is a UHF band signal.
The tag transmits a registration request signal only when a registration permission signal transmitted from the tag reader is received,
The electric tag system according to claim 1, wherein the tag reader performs the storage only when the registration request signal is received during the registration mode period . The tag reader is
An operation receiving unit for receiving a predetermined operation from the user;
A mode changing unit for setting the tag reader to the registration mode for a predetermined period from when the predetermined operation is received when the operation receiving unit receives the predetermined operation;
Electric lock system according to claim 1, characterized in that when the transmission of the registration permission signal, which is in the registration mode by the mode change unit. The tag is
It has a tag button that accepts pressing operations from the user,
The electric lock according to claim 2, wherein the registration request signal is transmitted only when the pressing operation is received by the tag button after receiving the registration permission signal transmitted from the tag reader. system. Before Symbol tag transmission of the registration request signal, as the registration request information, the electric lock according to claim 1, characterized in that using the registration permission information included in the transmitted registration permission signal from the tag reader system. An electric lock system comprising one or more tags, a tag reader, and an electric lock unlocked by collation using collation information,
The tag reader transmits a first signal of an LF band including a tag reader identifier of the own device during a registration mode period in which the own device is in a registration mode,
When the tag receives a first signal from the tag reader, the tag uses the electromagnetic energy obtained by the reception to transmit a second signal in the LF band including its own tag identifier,
When the tag reader receives a second signal from the tag during the registration mode period , the tag reader stores a tag identifier included in the second signal as the verification information ,
The transmission intensity of the second signal in the tag and the second signal in the tag reader are set so that the tag reader receives the second signal transmitted from the tag only when the tag is held in the vicinity of the tag reader. Signal reception sensitivity is set,
Even when the tag is not held in the vicinity of the tag reader, the tag is transmitted from the tag reader as long as the tag exists within a predetermined range wider than the vicinity from the tag reader. The electric lock system is characterized in that the transmission intensity of the first signal in the tag reader and the reception sensitivity of the first signal in the tag are set so as to receive the first signal .

Images