JP6811428B2 - Electric lock system and electric lock device - Google Patents

Description

The present invention generally relates to an electric lock system and an electric lock device, and more particularly to an electric lock system and an electric lock device that electrically unlocks or locks an entrance / exit of a building.

Conventionally, there has been a lock system including a portable device and an electric lock (see, for example, Patent Document 1). The portable device stores the key data required for locking and unlocking the lock. The electric lock determines the validity of the key data acquired from the mobile device and controls the unlocking of the lock when it is normally authenticated.

JP-A-2007-239347

In the above lock system, since the transmission power of the portable device (mobile terminal) and the reception sensitivity of the electric lock (electric lock device) vary from individual to individual, the operation of the electric lock using the portable device is effective. The range could vary from individual to individual.

An object of the present invention is to provide an electric lock system and an electric lock device capable of reducing variation in an effective operating range for operating an electric lock device using a mobile terminal.

The electric lock system of one aspect of the present invention has a lock control unit that controls an electric lock that unlocks or locks an entrance / exit of a building, and a key-side communication unit that performs wireless communication using radio waves as a medium. An operation range in which the operation of the electric lock device by the mobile terminal and the lock-side communication unit that performs wireless communication using radio waves with the mobile terminal for performing at least one of the lock operation and the lock operation is effective. It is provided with a setting unit for making settings related to radio waves and a comparison unit. The operation mode of the lock control unit includes a normal mode and an adjustment mode. When the operation mode is the adjustment mode, the setting unit sets a threshold value for each mobile terminal based on the measurement result of the received signal strength in at least one of the lock side communication unit and the key side communication unit. .. The comparison unit compares the high and low of the received signal strength and the threshold value in at least one of the lock-side communication unit and the key-side communication unit. In the lock control unit, when the operation mode is the normal mode, the comparison result of the comparison unit is the result that the received signal strength is higher than the threshold value, and the lock side communication unit receives the signal. When the key information included in the wireless signal is successfully authenticated, the electric lock is controlled. The threshold includes a first threshold and a second threshold. The lock control unit compares the height of the received signal strength with the first threshold value when the mobile terminal is outside the building, and when the mobile terminal is inside the building, the received signal strength is compared. And the height of the second threshold value are compared.
The electric lock system according to one aspect of the present invention includes a lock control unit that controls an electric lock that unlocks or locks an entrance / exit of a building, and a key-side communication unit that performs wireless communication using radio waves as a medium. An operation range in which the operation of the electric lock device by the mobile terminal and the lock-side communication unit that performs wireless communication using radio waves with the mobile terminal for performing at least one of the lock operation and the lock operation is effective. It is provided with a setting unit for making settings related to the above and a comparison unit. The operation mode of the lock control unit includes a normal mode and an adjustment mode. When the operation mode is the adjustment mode, the setting unit sets a threshold value for each mobile terminal based on the measurement result of the received signal strength in at least one of the lock side communication unit and the key side communication unit. .. The comparison unit compares the high and low of the received signal strength and the threshold value in at least one of the lock-side communication unit and the key-side communication unit. In the lock control unit, when the operation mode is the normal mode, the comparison result of the comparison unit is the result that the received signal strength is higher than the threshold value, and the lock side communication unit receives the signal. When the key information included in the wireless signal is successfully authenticated, the electric lock is controlled. The setting unit sets the threshold value based on the measurement result of the received signal strength by the key-side communication unit and the measurement result of the received signal strength by the lock-side communication unit.
The electric lock system of one aspect of the present invention has a lock control unit that controls an electric lock that unlocks or locks an entrance / exit of a building, and a key-side communication unit that performs wireless communication using radio waves as a medium. An operation range in which the operation of the electric lock device by the mobile terminal and the lock-side communication unit that performs wireless communication using radio waves with the mobile terminal for performing at least one of the lock operation and the lock operation is effective. It is provided with a setting unit for making settings related to radio waves, a comparison unit, and a notification unit. The operation mode of the lock control unit includes a normal mode and an adjustment mode. When the operation mode is the adjustment mode, the setting unit sets a threshold value for each mobile terminal based on the measurement result of the received signal strength in at least one of the lock side communication unit and the key side communication unit. .. The comparison unit compares the high and low of the received signal strength and the threshold value in at least one of the lock-side communication unit and the key-side communication unit. In the lock control unit, when the operation mode is the normal mode, the comparison result of the comparison unit is the result that the received signal strength is higher than the threshold value, and the lock side communication unit receives the signal. When the key information included in the wireless signal is successfully authenticated, the electric lock is controlled. Based on the history of the comparison result and the authentication result of the comparison unit when the operation mode is the normal mode, the notification unit sets the threshold value by the setting unit when the history satisfies a predetermined condition. A reminder notification signal is transmitted to the mobile terminal.

The electric lock device according to one aspect of the present invention is the electric lock device in the electric lock system and has the setting unit.

According to the present invention, it is possible to reduce the variation in the operation range in which the operation of the electric lock device using the mobile terminal is effective.

FIG. 1 is an explanatory diagram of a usage example of the electric lock system according to the first embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of the electric lock system of the above. FIG. 3 is a sequence diagram illustrating the operation of the electric lock system of the above. FIG. 4 is a sequence diagram illustrating the operation of the electric lock system of the second embodiment.

The embodiments described below are merely one of the various embodiments of the present invention. The embodiment of the present invention is not limited to the following embodiment, and may include other embodiments. Further, the following embodiments can be variously modified according to the design and the like as long as they do not deviate from the technical idea of the present invention.

(1) Configuration of Electric Lock System As shown in FIG. 1, the electric lock system 1 according to the present embodiment is a system for electrically unlocking and locking the entrance and exit of a building 40. The "doorway" of the building 40 referred to here is a door (swing door, sliding door, etc.) or window that separates the outside (outdoor 41) and the inside (indoor 42) of the building 40, and in the present embodiment, for example, the entrance door 43. is there. However, the entrance / exit of the building 40 is not limited to the entrance door 43, and may be a door provided at the door, a sweep-out window, or the like. In the present embodiment, the case where the building 40 is a detached house will be described as an example. In this case, the user 50 of the electric lock system 1 is a person who possesses (carries) the mobile terminal 3 among the residents of the building 40.

As shown in FIGS. 1 and 2, the electric lock system 1 of the present embodiment is used by the electric lock device 2 provided on the entrance door 43 and the user 50 who is authorized to unlock and lock the entrance door 43. It includes one or more (for example, three) mobile terminals 3 (3A, 3B, 3C). The mobile terminal 3 is, for example, a mobile phone terminal having a telephone function, and wireless communication is performed between the electric lock device 2 and the mobile terminal 3 using radio waves as a medium.

The basic function of the electric lock system 10 is to solve the entrance door 43 in the electric lock device 2 by transmitting the key information stored in advance in the mobile terminal 3 to the electric lock device 2. Allows locking and locking. That is, when the electric lock device 2 and the mobile terminal 3 communicate with each other and the key information of the mobile terminal 3 is successfully authenticated in the electric lock device 2, the electric lock device 2 can unlock and lock the entrance door 43. It becomes a state. Here, after the successful authentication, the electric lock device 2 may wait for a predetermined operation (unlocking operation) of the operation unit 25 (see FIG. 2) to unlock the entrance door 43, or the unlocking operation. The entrance door 43 may be unlocked immediately after the authentication is successful. As a result, the electric lock device 2 performs at least one of an unlocking operation for switching from the locked state to the unlocked state and a locking operation for switching from the unlocked state to the locked state by communicating with the mobile terminal 3.

The unlocking operation by the electric lock device 2 as described above is at least one of when the user 50 is outdoors 41, that is, when the user 50 returns home and when the user 50 is indoors 42, that is, when the user 50 goes out. It is done in. In the present embodiment, the unlocking operation by the electric lock device 2 is performed both when the user 50 returns home and when he / she goes out.

When the user 50 returns home, the mobile terminal 3 possessed by the user 50 is in a state where the user 50 who is outdoors 41 approaches the entrance door 43 and the mobile terminal 3 is within a predetermined operation range centered on the electric lock device 2. Communicates with the electric lock device 2, so that the entrance door 43 can be unlocked. Similarly, when the user 50 goes out, the user 50 who is indoors 42 approaches the entrance door 43, and the user 50 possesses the mobile terminal 3 in a predetermined operation range centered on the electric lock device 2. When the mobile terminal 3 communicates with the electric lock device 2, the entrance door 43 can be unlocked. Here, the predetermined operation range is a range in which the operation of the electric lock device 2 using the mobile terminal 3 is effective, and even if the unlocking operation is performed using the mobile terminal 3 outside the predetermined operation range. The electric lock device 2 is not in an unlockable state.

Further, in the electric lock device 2, when the entrance door 43 is unlocked, the key information and the authentication information of the mobile terminal 3 are successfully authenticated by communication with the mobile terminal 3, and the operation unit 25 determines. When the operation (locking operation) is performed, the entrance door 43 is locked. That is, the electric lock device 2 can perform not only the unlocking operation but also the locking operation of switching from the unlocked state to the locked state by communicating with the mobile terminal 3.

By the way, in the examples of FIGS. 1 and 2, the number of mobile terminals 3 permitted to unlock and lock the door (entrance door 43) is three, but the number of mobile terminals 3 is one or two. The above may be sufficient, and the number of mobile terminals 3 varies depending on the building 40 to which the electric lock system 1 is applied. In the following description, when each of the plurality of mobile terminals 3 is described, it is described as mobile terminals 3A, 3B, 3C, and when the description common to the mobile terminals 3A, 3B, 3C is described, it is described as mobile terminal 3. To do.

Further, when the building 40 to which the electric lock system 1 is applied has two or more entrances and exits, the electric lock device 2 may be provided at each of the two or more entrances and exits, and the number of the electric lock devices 2 is appropriately changed. Is possible.

The electric lock device 2 includes a lock side control circuit 21, a lock side communication unit 22, an electric lock 23, a lock side storage unit 24, an operation unit 25, a notification unit 26, and an open / close sensor 27. There is. The operation mode of the electric lock device 2 includes a normal mode for controlling the operation of the electric lock 23 and an adjustment mode.

The lock-side control circuit 21 includes, for example, a microcomputer having a processor and a memory. When the processor executes a program stored in the memory, functions such as a comparison unit 211, an authentication unit 212, a lock control unit 213, a setting unit 214, and a notification unit 215 are realized. The program executed by the processor is stored in the memory of the microcomputer in advance, but may be recorded in a recording medium such as a memory card and provided, or may be provided through a telecommunication line.

The comparison unit 211 sets the received signal strength (RSSI) of the radio signal received from the mobile terminal 3 by the lock-side communication unit 22 and the threshold value stored by the lock-side storage unit 24 for each mobile terminal 3. Compare the high and low of. The comparison unit 211 determines, for example, whether or not the received signal strength is higher than the threshold value.

The authentication unit 212 collates the key information received from the mobile terminal 3 by the lock-side communication unit 22 with the authentication information stored in the lock-side storage unit 24, so that the mobile terminal 3 that has transmitted the key information is an electric lock. It authenticates whether or not the mobile terminal 3 is permitted to operate the 23.

When the operation mode of the lock control unit 213 is the normal mode, the comparison result of the comparison unit 211 is that the received signal strength is higher than the threshold value, and the authentication unit 212 succeeds in authenticating the mobile terminal 3. , Controls the electric lock 23 (unlocking control and locking control).

When the operation mode of the electric lock device 2 is the adjustment mode, the setting unit 214 receives electricity from the mobile terminal 3 based on the measurement result of the received signal strength in at least one of the lock side communication unit 22 and the key side communication unit 32. Make settings related to the operation range in which the operation of the lock device 2 is effective. In the present embodiment, the setting unit 214 sets the operation range by setting the threshold value of the received signal strength. The setting unit 214 stores the threshold value set for each mobile terminal 3 in the lock side storage unit 24.

The notification unit 215 sends a notification signal when the history satisfies a predetermined condition based on the history of the comparison result of the comparison unit 211 and the authentication result of the authentication unit 212 when the operation mode of the electric lock device 2 is the normal mode. It is transmitted from the lock side communication unit 22 to the mobile terminal 3. Here, the predetermined condition is a condition for determining whether or not the set value of the threshold value is appropriate. For example, under certain conditions, even though the authentication unit 212 has succeeded in authentication, the comparison result of the comparison unit 211 shows that the received signal strength is equal to or less than the threshold value, so that an operation using the mobile terminal 3 is performed. It is a condition that the number of failures does not exceed the predetermined number of determinations. Further, the notification signal is a signal for prompting the user 50 who owns the mobile terminal 3 to set the threshold value by the setting unit 214.

The lock-side communication unit 22 includes, for example, an antenna and a communication circuit, and performs wireless communication using radio waves as a medium. The lock-side communication unit 22 is configured to perform short-range wireless communication conforming to, for example, a BLE (Bluetooth (registered trademark) Low Energy) standard. BLE is the name of version 4.0 in the specifications of Bluetooth (registered trademark), which is a wireless PAN (Personal Area Network) technology. The lock-side communication unit 22 intermittently transmits a beacon signal in accordance with a command from the lock-side control circuit 21. Further, when the lock-side communication unit 22 receives the response signal transmitted from the key-side communication unit 32 in response to the beacon signal, the lock-side communication unit 22 transmits an authentication communication for authenticating the mobile terminal 3 with the electric lock device 2. Start.

The lock-side communication unit 22 has a measurement function for measuring the received signal strength of the received wireless signal, and outputs the measurement result of the received signal strength to the lock-side control circuit 21.

The electric lock 23 unlocks and locks the entrance door 43 (see FIG. 1) of the building 40. The electric lock 23 includes a dead bolt, a drive unit, and a drive circuit. The drive circuit generates a drive signal in response to a control signal (unlocking signal or lock signal) output from the lock control unit 213, and outputs the generated drive signal to the drive unit. The drive unit includes an electric motor and a transmission mechanism that transmits the driving force of the electric motor to the dead bolt. The drive unit drives the drive motor according to a drive signal input from the drive circuit. The driving force of the drive motor is transmitted to the dead bolt via the transmission mechanism, so that the dead bolt moves to the locking position or the unlocking position. Here, in the state where the dead bolt is moved to the locked position, at least a part of the dead bolt is inserted into the bolt hole provided in the door frame supporting the entrance door 43, and in this state, the entrance door 43 is closed. It is held in a state of being. When the dead bolt is moved to the unlocked position, the entire dead bolt is out of the bolt hole, and in this state, the entrance door 43 can be opened and closed.

The lock-side storage unit 24 includes, for example, an electrically rewritable non-volatile memory such as an EEPROM (Electrically Erasable and Programmable Read-Only Memory). The lock-side storage unit 24 stores the key information of one or more mobile terminals 3 permitted to unlock and lock the electric lock 23 as authentication information. In the present embodiment, individual key information is assigned to each of the plurality of mobile terminals 3, and the lock side storage unit 24 associates the identification information of the mobile terminal 3 with the key information assigned to the mobile terminal 3. And remember.

The operation unit 25 includes, for example, a push button switch provided on the outdoor 41 side of the entrance door 43 and a push button switch provided on the indoor 42 side of the entrance door 43. The operation unit 25 is electrically connected to the lock side control circuit 21. When the user presses the push button switch on the outdoor 41 side or the indoor 42 side, an operation signal is input from the operation unit 25 to the lock side control circuit 21.

The notification unit 26 includes, for example, a plurality of light emitting diodes. The notification unit 26 notifies the operating state of the electric lock device 2 by turning off, turning on, and blinking the light emitting diode.

The open / close sensor 27 detects whether the entrance door 43 is open or closed. The open / close sensor 27 includes, for example, a proximity switch provided at a portion of the entrance door 43 facing the door frame. If the proximity switch of the open / close sensor 27 detects the door frame, the open / close sensor 27 detects that the entrance door 43 is in the closed state (closed state). If the proximity switch of the open / close sensor 27 does not detect the door frame, the open / close sensor 27 detects that the entrance door 43 is in the open state (open state).

In the present embodiment, as shown in FIG. 1, all the components of the electric lock device 2 are housed in the case 28 attached to the entrance door 43 of the building 40.

The mobile terminal 3 is, for example, a smart phone. The mobile terminal 3 includes a key-side control circuit 31, a key-side communication unit 32, a display unit 33, a key-side storage unit 34, and an operation unit 35.

The key-side control circuit 31 includes, for example, a microcomputer having a processor and a memory. The function of the key side control circuit 31 is realized by the processor executing the program stored in the memory. The program executed by the processor is stored in the memory of the microcomputer in advance, but may be recorded in a recording medium such as a memory card and provided, or may be provided through a telecommunication line.

The key-side communication unit 32 includes, for example, an antenna and a communication circuit. The key-side communication unit 32 is configured to perform short-range wireless communication with the lock-side communication unit 22, for example, in accordance with the BLE standard. The key-side communication unit 32 transmits a response signal in accordance with a command from the key-side control circuit 31. Further, the key-side communication unit 32 receives a beacon signal intermittently transmitted from the lock-side communication unit 22. When the key side communication unit 32 receives the beacon signal, it transmits an ACK (ACKnowledgement) notifying that the beacon signal has been received to the electric lock device 2. When the electric lock device 2 receives the ACK from the mobile terminal 3, the authentication communication for authenticating the mobile terminal 3 is started between the electric lock device 2 and the mobile terminal 3. Further, the key-side communication unit 32 has a function of measuring the received signal strength of the received wireless signal.

The display unit 33 is a thin display device such as a liquid crystal display or an organic EL (Electro Luminescence) display. The display content of the display unit 33 is controlled by the key side control circuit 31.

The key-side storage unit 34 includes, for example, an electrically rewritable non-volatile memory such as EEPROM. The key side storage unit 34 stores individual identification information assigned to the mobile terminal 3, key information given by the electric lock device 2, and the like. Further, the key side storage unit 34 stores a program executed by the computer of the mobile terminal 3. This program may be stored in a memory in advance, or may be provided via a telecommunication line or in a state of being stored in a recording medium.

The operation unit 35 includes, for example, a touch panel provided on the display device constituting the display unit 33. The touch panel is equipped with a capacitive touch sensor or a pressure sensitive touch sensor. When the user touches the display device constituting the display unit 33 (tap operation, swipe operation, etc.), the operation unit 35 outputs a signal corresponding to the operation to the key side control circuit 31.

(2) Operation The operation of the electric lock system 1 of the present embodiment will be described below. The operation mode of the electric lock device 2 includes a normal mode and an adjustment mode, and the operation of each mode will be described below.

(2.1) Operation in Adjustment Mode In the normal mode, the mobile terminal 3 is successfully authenticated while the mobile terminal 3 is located away from the electric lock device 2, and the electric lock device 2 can unlock the entrance door 43. In this state, a person who is not permitted to unlock the entrance door 43 may unlock the entrance door 43. Therefore, it is necessary to limit the operation range in which the electric lock device 2 can be unlocked and locked by using the mobile terminal 3. In the present embodiment, the mobile terminal 3 sets a threshold value for the received signal strength. The operating range in which the electric lock device 2 can be operated is set. That is, in the adjustment mode, the setting unit 214 of the electric lock device 2 sets the threshold value of the received signal strength.

The operation of the electric lock system 1 in the adjustment mode will be described with reference to FIG.

When the user performs a predetermined operation (for example, an operation of continuously pressing the push button switch on the outdoor 41 side for a certain period of time or longer) using the operation unit 25 of the electric lock device 2, the lock side control circuit 21 is released from the operation unit 25. The operation mode is set to the adjustment mode according to the operation signal (step S1).

After setting the operation mode of the electric lock device 2 to the adjustment mode, the user holds the mobile terminal 3 to be adjusted at a place separated from the electric lock device 2 by a predetermined distance L1 (for example, 1 m) outdoors 41. stand.

When the lock-side control circuit 21 starts operating in the adjustment mode, the lock-side control circuit 21 continuously transmits a beacon signal from the lock-side communication unit 22 at a predetermined cycle (steps S2, S4, ..., S6). When the lock-side control circuit 21 starts the operation in the adjustment mode, the lock-side control circuit 21 notifies the user 50 that the operation mode is the adjustment mode by blinking the light emitting diode of the notification unit 26, for example, at a predetermined cycle.

When the key-side communication unit 32 of the mobile terminal 3 receives the beacon signal transmitted from the electric lock device 2, it transmits a response signal (beacon response) to the beacon signal to the lock-side communication unit 22 (steps S3, S5, ... , S7). When the lock-side communication unit 22 receives the beacon response from the key-side communication unit 32 of the mobile terminal 3, the lock-side communication unit 22 measures the reception signal strength of the received beacon response.

In a state where the operation mode of the electric lock device 2 is the adjustment mode, the setting unit 214 sets a threshold value based on the received signal strength of the lock-side communication unit 22, that is, the reception signal strength of the radio signal received by the lock-side communication unit 22. Is set (step S8).

The setting unit 214 sets the threshold value based on the received signal strength of a plurality of radio signals (beacon responses) received by the lock side communication unit 22 during a predetermined time in the adjustment mode. For example, the lock-side communication unit 22 periodically transmits a beacon signal at intervals of about 0.1 seconds, and the reception signal strength of about 100 beacon responses received by the lock-side communication unit 22 in about 10 seconds. Based on this, the setting unit 214 sets the threshold value. The setting unit 214 of the present embodiment obtains the maximum value X1 (dB) of the received signal strength from the received signal strengths of the plurality of beacon responses, and sets the threshold value of the received signal strength based on the maximum value X1 (dB) of the received signal strength. Set.

Here, between the mobile terminal 3 and the electric lock device 2 when the mobile terminal 3 is located at the position farthest from the electric lock device 2 within the operation range in which the electric lock device 2 can be operated by using the mobile terminal 3. Let the distance be L2. The distance L2 is, for example, a distance of about several tens of cm, and the distance L2 is set to be shorter than the distance L1 in the adjustment mode. Then, the difference between the received signal strength when the distance from the electric lock device 2 to the mobile terminal 3 is the distance L1 and the received signal strength when the distance is L2 is set in advance in the lock side storage unit 24 as an adjustment value Z1 (dB). It is set.

Therefore, the setting unit 214 of the present embodiment adds an adjustment value Z1 (for example, 5 dB) to the maximum value X1 (dB) of the received signal strength when the distance between the electric lock device 2 and the mobile terminal 3 is L1. The value is determined as a threshold. That is, the threshold value Y1 is obtained by the following equation (1).

Y1 = X1 + Z1 (dB) ... (1)
As a result, the threshold value Y1 is set to a value corresponding to the received signal strength when the distance between the electric lock device 2 and the mobile terminal 3 is a distance L2 shorter than the distance L1 at the time of adjustment.

By the way, although the received signal strength of the wireless signal may decrease due to a change in the communication environment or the like, it is unlikely that the received signal strength becomes higher than the maximum value X1 of the received signal strength of a plurality of times. Since the setting unit 214 sets the threshold value Y1 based on the maximum value X1 of the received signal strength a plurality of times, the threshold value Y1 can be set to an appropriate value.

Further, the beacon response received by the lock-side communication unit 22 includes the identification information of the mobile terminal 3, and when the setting unit 214 determines the threshold value Y1, the threshold value Y1 is associated with the identification information of the mobile terminal 3. It is stored in the lock side storage unit 24. As a result, the lock-side storage unit 24 of the electric lock device 2 can store a plurality of threshold values Y1 for each of the plurality of mobile terminals 3. That is, the setting unit 214 can set individual threshold values Y1 for each of the plurality of mobile terminals 3.

When the setting of the threshold value Y1 by the setting unit 214 is completed, the lock side control circuit 21 sets the operation mode of the electric lock device 2 to the normal mode (step S9). When the operation mode of the electric lock device 2 is set to the normal mode, the lock side control circuit 21 notifies that the adjustment mode has ended by turning on the light emitting diode of the notification unit 26 for a certain period of time and then turning it off. ..

Here, in the adjustment mode, the lock side control circuit 21 transmits a control command for displaying an instruction screen instructing the operation of the user 50 in the adjustment mode on the display unit 33 from the lock side communication unit 22 to the mobile terminal 3. You may. The instruction screen is, for example, a screen for displaying the content instructing the user 50 to change the orientation or position of the mobile terminal 3 in the adjustment mode, and may be a static screen or a moving screen. As a result, the orientation and position of the mobile terminal 3 can be changed in the adjustment mode, and the beacon response transmitted from the mobile terminal 3 to the electric lock device 2 is received in a state where the orientation and position of the mobile terminal 3 are variously changed. The setting unit 214 can set the threshold value Y1 based on the signal strength.

(2.2) Operation in Normal Mode The operation of the electric lock system 1 in the normal mode will be described with reference to FIG. The operation when the entrance door 43 is unlocked by using the mobile terminal 3 when returning home will be described below.

In the normal mode, the lock-side communication unit 22 of the electric lock device 2 intermittently transmits a beacon signal (for example, at intervals of about 0.1 to 2 seconds) according to a command from the lock-side control circuit 21. The lock-side control circuit 21 repeats a process of transmitting a beacon signal and a process of waiting for a beacon response for a certain period of time after transmitting the beacon signal at a predetermined cycle.

A range in which the user 50 in the outdoor 41 approaches the entrance door 43, and the mobile terminal 3 possessed by the user 50 can communicate between the mobile terminal 3 and the electric lock device 2 with reference to the electric lock device 2 ( When entering the communicable range), the key-side communication unit 32 receives the beacon signal from the electric lock device 2. Here, the communicable range is wider than the above operating range. When the key-side communication unit 32 receives the beacon signal, the key-side control circuit 31 transmits a beacon response from the key-side communication unit 32 to the electric lock device 2.

When the lock-side communication unit 22 of the electric lock device 2 receives the beacon response, the comparison unit 211 sets the reception signal strength of the beacon response received by the lock-side communication unit 22 and the threshold value Y1 stored in the lock-side storage unit 24. Compare high and low.

Further, when the lock side communication unit 22 of the electric lock device 2 receives the beacon response, the authentication unit 212 starts the authentication process. When the authentication unit 212 starts the authentication process, the lock side communication unit 22 transmits a request signal requesting key information to the mobile terminal 3. When the key side communication unit 32 of the mobile terminal 3 receives the request signal, the key side control circuit 31 creates a response signal including the key information stored in the key side storage unit 34, and this response signal is used for key side communication. It is transmitted from the unit 32 to the electric lock device 2. When the lock-side communication unit 22 receives the response signal from the mobile terminal 3, the authentication unit 212 uses the key information included in the response signal and the identification information of the mobile terminal 3 as the authentication information stored in the lock-side storage unit 24. By collating, the mobile terminal 3 is authenticated.

Here, if the comparison result of the comparison unit 211 is that the received signal strength is equal to or less than the threshold value Y1, or if the authentication of the authentication unit 212 fails, the lock control unit 213 does not unlock the electric lock 23. ..

On the other hand, if the comparison result of the comparison unit 211 shows that the received signal strength is higher than the threshold value Y1 and the authentication of the authentication unit 212 is successful, the lock control unit 213 is in a state where the electric lock 23 can be unlocked. .. Here, in the comparison between two values such as the received signal strength, the place where "less than or equal to" is used includes both the case where the two values are equal and the case where one of the two values is less than the other. However, the present invention is not limited to this, and the term "less than or equal to" may be synonymous with "lower" including only the case where one of the binary values is less than the other. That is, whether or not the two values are equal can be arbitrarily changed depending on the setting of the threshold value, so there is no technical difference between "less than or equal to" and "lower". Similarly, "higher" may be synonymous with "greater than or equal to".

When the user 50 presses the push button switch on the outdoor 41 side of the operation unit 25 while the lock control unit 213 is capable of unlocking the electric lock 23, the lock control unit 213 generates an unlock signal, and the lock control unit 213 generates an unlock signal. The unlocking signal generated in is input to the drive circuit of the electric lock 23. The drive circuit generates a drive signal for moving the dead bolt to the unlock position according to the unlock signal, and outputs the generated drive signal to the drive unit. Then, the drive unit moves the dead bolt to the unlocking position according to the drive signal from the drive circuit. In the state where the dead bolt is moved to the unlocked position, the entrance door 43 can be opened, and the user 50 of the mobile terminal 3 can open the entrance door 43 and enter the building 40.

When the open / close sensor 27 detects the open state of the front door 43 and then detects the closed state of the front door 43 while the electric lock 23 unlocks the front door 43, the lock control unit 213 generates a lock signal. Then, the lock signal generated by the lock control unit 213 is input to the drive circuit of the electric lock 23. The drive circuit generates a drive signal for moving the dead bolt to the lock position according to the lock signal, and outputs the generated drive signal to the drive unit. Then, the drive unit moves the dead bolt to the lock position according to the drive signal from the drive circuit, and the electric lock 23 locks the entrance door 43.

Further, when the push button switch of the operation unit 25 is not pressed from the time when the lock control unit 213 enables the unlocking of the electric lock 23 until a predetermined standby time elapses, the lock control unit 213 is used for the electric lock 23. End the unlockable state.

The above-mentioned operation explanation of the normal mode is an operation when the entrance door 43 is unlocked by using the mobile terminal 3 when returning home, but the operation when the entrance door 43 is locked when going out is also the same. , The description is omitted.

By the way, if the reception signal strength of the beacon response received from the mobile terminal 3 by the lock side communication unit 22 of the electric lock device 2 decreases due to deterioration of the communication environment in the normal mode, even if the mobile terminal 3 is within a predetermined operation range. , The received signal strength may be lower than the threshold value Y1. In this case, although the authentication of the authentication unit 212 is successful, the comparison result of the comparison unit 211 shows that the received signal strength is equal to or less than the threshold value Y1, so that the number of times the lock control unit 213 does not unlock the electric lock 23, that is, , The number of times that the entrance door 43 fails to be unlocked using the mobile terminal 3 increases.

Here, the notification unit 215 of the electric lock device 2 satisfies a predetermined condition based on the history of the comparison result of the comparison unit 211 and the authentication result of the authentication unit 212 when the operation mode is the normal mode. A notification signal prompting the setting unit 214 to reset the threshold value Y1 is transmitted to the mobile terminal 3. The lock control unit 213 of the electric lock device 2 stores the history of the comparison result of the comparison unit 211 and the authentication result of the authentication unit 212 in the lock side storage unit 24 each time the mobile terminal 3 is authenticated. The notification unit 215 compares the number of failures obtained by subtracting the number of times the comparison result of the comparison unit 211 is equal to or less than the threshold value Y1 from the number of times the authentication unit 212 succeeds in authentication, and the high or low number of predetermined determinations. When the number of failures exceeds the number of determinations, the notification unit 215 sends a notification signal prompting the setting unit 214 to set the threshold value Y1 when the mobile terminal 3 enters the area where the electric lock device 2 can communicate with the electric lock device 2. It is transmitted from 22 to the mobile terminal 3. When the key-side communication unit 32 of the mobile terminal 3 receives the notification signal from the electric lock device 2, the key-side control circuit 31 outputs a notification sound from the speaker and prompts the user 50 to reset the threshold value Y1. It is displayed on the display unit 33. When the user 50 of the mobile terminal 3 confirms the notification content displayed on the display unit 33 and performs a predetermined operation for setting the threshold value Y1 using the operation unit 25 of the electric lock device 2, "(2). The threshold value Y1 is set by the operation described in "1) Operation in adjustment mode".

(3) Modified Example The electric lock system and the electric lock device according to the modified example of the above embodiment are listed below. Each configuration of the modification described below can be applied in combination with each configuration described in the above embodiment as appropriate.

(3.1) Modification 1
In the above embodiment, the lower limit value and the upper limit value of the threshold value Y1 may be set in advance in the setting unit 214. The setting unit 214 compares the calculation result of the threshold value Y1 obtained by the equation (1) described in "(2.1) Operation of the adjustment mode" with the lower limit value and the upper limit value, respectively. The setting unit 214 sets the threshold value Y1 to the lower limit value if the calculation result of the threshold value Y1 is lower than the lower limit value, and sets the threshold value Y1 to the upper limit value if the calculation result of the threshold value Y1 exceeds the upper limit value.

As a result, the setting unit 214 can set the threshold value Y1 to a value within a desired range between the lower limit value and the upper limit value. Therefore, the threshold value Y1 is not set to a value lower than the lower limit value or a value higher than the upper limit value, and the operation range in which the electric lock device 2 can be unlocked and locked using the mobile terminal 3 is an appropriate range. Can be set to.

(3.2) Modification 2
In the above embodiment and the first modification, the electric lock device 2 may be unlocked and locked by using the mobile terminal 3 located indoors 42. In this case, the setting unit 214 sets the threshold value Y1 as a first threshold value used when the mobile terminal 3 is outdoors 41 and a second threshold value used when the mobile terminal 3 is indoors 42. You may.

Here, the lock-side control circuit 21 of the electric lock device 2 determines that when the push button switch on the outdoor 41 side of the operation unit 25 is pressed, it is determined that the operation is performed using the mobile terminal 3 in the outdoor 41, and the operation unit 25 When the push button switch on the indoor 42 side is pressed, it is determined that the operation is performed using the mobile terminal 3 in the indoor 42.

When the user 50 in the outdoor 41 performs an operation for setting the operation mode to the adjustment mode by using the push button switch on the outdoor 41 side of the operation unit 25, the lock side control circuit 21 receives an operation signal from the operation unit 25. Based on this, the operation mode is set to the adjustment mode for adjusting the first threshold value. The setting unit 214 performs the operation of the adjustment mode described in "(2.1) Operation of the adjustment mode", sets the first threshold value based on the measurement result of the received signal strength, and sets the first threshold value on the lock side storage unit. Store in 24.

Further, when the user 50 in the indoor 42 performs an operation for setting the operation mode to the adjustment mode by using the push button switch on the indoor 42 side of the operation unit 25, the lock side control circuit 21 is operated from the operation unit 25. The operation mode is set to the adjustment mode for adjusting the second threshold value based on the signal. The setting unit 214 performs the operation of the adjustment mode described in "(2.1) Operation of the adjustment mode", sets the second threshold value based on the measurement result of the received signal strength, and sets the second threshold value on the lock side storage unit. Store in 24.

As a result, the setting unit 214 stores the first threshold value when the mobile terminal 3 is outdoors 41 and the second threshold value when the mobile terminal 3 is indoors 42 in the lock side storage unit 24 as threshold values.

Then, when the operation mode of the electric lock device 2 is the normal mode, the lock side communication unit 22 of the electric lock device 2 intermittently (for example, 0.1 to 2) emits a beacon signal according to a command from the lock side control circuit 21. Send at intervals of about seconds). The lock-side control circuit 21 repeats a process of transmitting a beacon signal and a process of waiting for a response signal (beacon response) for the beacon signal for a certain period of time after transmitting the beacon signal at a predetermined cycle.

The user 50 in the indoor 42 or the outdoor 41 approaches the entrance door 43, and the mobile terminal 3 possessed by the user 50 can communicate between the mobile terminal 3 and the electric lock device 2 with reference to the electric lock device 2. When entering the range, the key-side communication unit 32 receives the beacon signal from the electric lock device 2. When the key-side communication unit 32 receives the beacon signal, the key-side control circuit 31 transmits a beacon response from the key-side communication unit 32 to the electric lock device 2.

When the lock-side communication unit 22 of the electric lock device 2 receives the beacon response, the authentication unit 212 starts the authentication process. When the authentication unit 212 starts the authentication process, the lock side communication unit 22 transmits a request signal requesting key information to the mobile terminal 3. When the key side communication unit 32 of the mobile terminal 3 receives the request signal, the key side control circuit 31 creates a response signal including the key information stored in the key side storage unit 34, and this response signal is used for key side communication. It is transmitted from the unit 32 to the electric lock device 2. When the lock-side communication unit 22 receives the response signal from the mobile terminal 3, the authentication unit 212 uses the key information included in the response signal and the identification information of the mobile terminal 3 as the authentication information stored in the lock-side storage unit 24. By collating, the mobile terminal 3 is authenticated.

Here, when the user 50 in the outdoor 41 operates the push button switch on the outdoor 41 side, the lock side control circuit 21 determines that the operation is from the outdoor 41, and the comparison unit 211 determines the received signal strength of the lock side communication unit 22. Compare the height with the first threshold.

If the comparison result of the comparison unit 211 is that the received signal strength is equal to or less than the first threshold value, or if the authentication of the authentication unit 212 fails, the lock control unit 213 does not unlock the electric lock 23.

On the other hand, when the comparison result of the comparison unit 211 shows that the received signal strength is higher than the first threshold value and the authentication of the authentication unit 212 is successful, the lock control unit 213 unlocks the electric lock 23. That is, the lock control unit 213 generates an unlocking signal, the unlocking signal generated by the lock control unit 213 is input to the drive circuit of the electric lock 23, and the electric lock 23 unlocks the entrance door 43.

Further, when the user 50 in the indoor 42 operates the push button switch on the indoor 42 side, the lock side control circuit 21 determines that the operation is from the indoor 42, and the comparison unit 211 determines the received signal strength of the lock side communication unit 22 and the first. Compare the height with the two thresholds.

If the comparison result of the comparison unit 211 is that the received signal strength is equal to or less than the second threshold value, or if the authentication of the authentication unit 212 fails, the lock control unit 213 does not unlock the electric lock 23.

On the other hand, when the comparison result of the comparison unit 211 shows that the received signal strength is higher than the second threshold value and the authentication of the authentication unit 212 is successful, the lock control unit 213 unlocks the electric lock 23. That is, the lock control unit 213 generates an unlocking signal, the unlocking signal generated by the lock control unit 213 is input to the drive circuit of the electric lock 23, and the electric lock 23 unlocks the entrance door 43.

Then, when the open / close sensor 27 detects the open state of the entrance door 43 while the electric lock 23 unlocks the entrance door 43, and then detects the closed state of the entrance door 43, the lock control unit 213 detects the lock signal. To generate. The lock signal generated by the lock control unit 213 is input to the drive circuit of the electric lock 23, and the electric lock 23 locks the entrance door 43.

Further, when a predetermined waiting time elapses while the lock control unit 213 unlocks the electric lock 23, the lock control unit 213 outputs a lock signal to the electric lock 23, and the electric lock 23 closes the entrance door 43. Lock it.

When the mobile terminal 3 is located outdoors 41 and when the mobile terminal 3 is located indoors 42, even if the distance between the electric lock device 2 and the mobile terminal 3 is the same, it is received by the lock side communication unit 22 of the electric lock device 2. The received signal strength of the radio signal is different. In the second modification, the setting unit 214 sets the first threshold value and the second threshold value as the threshold values of the comparison unit 211, so that the mobile terminal 3 can be operated depending on whether the mobile terminal 3 is outdoors 41 or indoors 42. The range can be set to the desired range.

(3.3) Modification 3
In the above-described embodiments and modifications 1 and 2, the setting unit 214 is based on the measurement result of the received signal strength of the key-side communication unit 32 and the measurement result of the reception signal strength of the lock-side communication unit 22. The threshold value Y2 may be set.

The operation in the adjustment mode in this case will be described below.

When the user 50 performs a predetermined operation using the operation unit 25 of the electric lock device 2, the lock side control circuit 21 sets the operation mode to the adjustment mode according to the operation signal from the operation unit 25.

After setting the operation mode of the electric lock device 2 to the adjustment mode, the user 50 stands at a place separated from the electric lock device 2 by a predetermined distance L1 in the outdoor 41 while holding the mobile terminal 3 to be adjusted.

When the lock-side control circuit 21 starts operating in the adjustment mode, the lock-side control circuit 21 continuously transmits a beacon signal from the lock-side communication unit 22 at a predetermined cycle.

When the key side communication unit 32 of the mobile terminal 3 receives the beacon signal transmitted from the electric lock device 2, it measures the reception signal strength of the beacon signal and locks the beacon response including the information of the measurement result of the reception signal strength. It is transmitted to the side communication unit 22.

When the lock-side communication unit 22 receives the beacon response from the key-side communication unit 32 of the mobile terminal 3, the lock-side communication unit 22 measures the reception signal strength of the received beacon response and receives the beacon response on the mobile terminal 3 included in the received beacon response. Acquire information on the measurement result of signal strength.

Then, the setting unit 214 measures the reception signal strength of the lock-side communication unit 22 and the reception signal strength of the key-side communication unit 32 in a state where the operation mode of the electric lock device 2 is the adjustment mode. Based on the above, the threshold value Y2 is set.

In the adjustment mode, the setting unit 214 receives the reception signal strength of the plurality of wireless signals (beacon signals) received by the key side communication unit 32 during the predetermined time, and the plurality of received signals received by the lock side communication unit 22 during the predetermined time. The threshold value Y2 is set based on the received signal strength of the radio signal of.

The setting unit 214 obtains the maximum value X1 of the received signal strength of the lock side communication unit 22 based on the reception signal strength of the plurality of beacon responses received by the lock side communication unit 22, and the key side communication unit 32 receives the signal. The maximum value X2 in the key side communication unit 32 is obtained based on the received signal strength of the plurality of beacon signals.

The setting unit 214 determines the maximum value X1 (dB) of the received signal strength of the electric lock device 2 and the received signal strength of the mobile terminal 3 when the distance between the electric lock device 2 and the mobile terminal 3 is L1. The value obtained by adding the adjustment value Z1 (for example, 5 dB) to the sum of the maximum value X2 (dB) is determined as the threshold value Y2. That is, the threshold value Y2 is obtained by the following equation (2).

Y2 = X1 + X2 + Z1 (dB) ... (2)
When the setting unit 214 sets the threshold value Y2 in this way, when the operation mode is the normal mode, the comparison unit 211 determines the measurement result of the received signal strength of the mobile terminal 3 and the received signal of the electric lock device 2. A comparison with the threshold value Y2 is performed based on the measurement result of the intensity.

While the electric lock device 2 is operating in the normal mode, when the user 50 who owns the mobile terminal 3 approaches the entrance door 43 outdoors 41 and the mobile terminal 3 enters the communicable range of the electric lock device 2, the key side communication The unit 32 receives the beacon signal from the electric lock device 2. When the key-side communication unit 32 receives the beacon signal, the key-side control circuit 31 transmits a beacon response including information on the measurement result of the reception signal strength of the beacon signal from the key-side communication unit 32 to the electric lock device 2.

When the lock-side communication unit 22 of the electric lock device 2 receives the beacon response, the comparison unit 211 determines the reception signal strength of the beacon response received by the lock-side communication unit 22 and the reception signal strength of the key-side communication unit 32. The height with the threshold value Y2 stored in the side storage unit 24 is compared. That is, the comparison unit 211 compares the value (X3 + X4) obtained by adding the reception signal strength X4 of the lock side communication unit 22 to the reception signal strength X3 of the key side communication unit 32 and the height of the threshold value Y2.

Further, when the lock side communication unit 22 of the electric lock device 2 receives the beacon response, the authentication unit 212 starts the authentication process. When the authentication unit 212 starts the authentication process, the authentication unit 212 transmits a request signal requesting key information from the lock side communication unit 22 to the mobile terminal 3. When the key side communication unit 32 of the mobile terminal 3 receives the request signal, the key side control circuit 31 creates a response signal including the key information stored in the key side storage unit 34, and this response signal is used for key side communication. It is transmitted from the unit 32 to the electric lock device 2. When the lock-side communication unit 22 receives the response signal from the mobile terminal 3, the authentication unit 212 uses the key information included in the response signal and the identification information of the mobile terminal 3 as the authentication information stored in the lock-side storage unit 24. By collating, the mobile terminal 3 is authenticated.

Here, if the comparison result of the comparison unit 211 is that the received signal strength (X3 + X4) is equal to or less than the threshold value Y2, or if the authentication of the authentication unit 212 fails, the lock control unit 213 unlocks the electric lock 23. Do not do.

On the other hand, if the comparison result of the comparison unit 211 shows that the received signal strength (X3 + X4) is higher than the threshold value Y2 and the authentication of the authentication unit 212 is successful, the lock control unit 213 can unlock the electric lock 23. It becomes a state. When the user 50 presses the push button switch of the operation unit 25 while the lock control unit 213 can unlock the electric lock 23, the lock control unit 213 outputs an unlocking signal to the electric lock 23, and the electric lock 23 outputs the unlocking signal to the electric lock 23. The entrance door 43 is unlocked.

When the open / close sensor 27 detects the open state of the front door 43 and then detects the closed state of the front door 43 while the electric lock 23 unlocks the front door 43, the lock control unit 213 generates a lock signal. To do. The lock signal generated by the lock control unit 213 is input to the drive circuit of the electric lock 23, and the electric lock 23 locks the entrance door 43.

Further, if the push button switch of the operation unit 25 is not pressed from the time when the lock control unit 213 enables the unlocking of the electric lock 23 until a predetermined standby time elapses, the lock control unit 213 is changed to the electric lock 23. A lock signal is output, and the electric lock 23 locks the entrance door 43.

As described above, in the modification 3, the comparison unit 211 compares the height of the threshold value Y2 with the value based on both the reception signal strength of the mobile terminal 3 and the reception signal strength of the electric lock device 2. Therefore, even if there are variations in the transmission power of the electric lock device 2 and the transmission power of the mobile terminal, it is possible to suppress variations in the operating range of the mobile terminal 3.

(3.4) Other Modified Examples In the above embodiments and modified examples 1 to 3, the setting unit 214 sets the threshold value based on the maximum value of the measurement results of the plurality of received signal intensities in the adjustment mode. However, the threshold value may be set based on the measurement results of a plurality of received signal strengths. The setting unit 214 sets a threshold value based on, for example, the average value, the mode value, the median value, the minimum value, etc. of the plurality of received signal strengths based on the measurement results of the plurality of received signal strengths in the adjustment mode. May be good.

In the above-described embodiments and modifications 1 to 3, the lock-side communication unit 22 and the key-side communication unit 32 wirelessly set a plurality of frequency channels having different frequencies in the frequency band to be used, and switch the frequency channels. Communicating. For example, when the lock-side communication unit 22 transmits a beacon signal, the lock-side communication unit 22 transmits the beacon signal on three frequency channels. Here, since the transmission loss between the lock-side communication unit 22 and the key-side communication unit 32 differs depending on the frequency channel used, the setting unit 214 sets a plurality of threshold values for each of the plurality of frequency channels. Is preferable.

The comparison unit 211 of the electric lock device 2 compares the height of the radio signal strength of the radio signal received by the lock-side communication unit 22 with the threshold value in the frequency channel used in the normal mode. Therefore, even when wireless communication is performed between the electric lock device 2 and the mobile terminal 3 using a plurality of frequency channels, it is possible to reduce variations in the operating range in which the electric lock device 2 can be operated using the mobile terminal 3. be able to.

Further, in the above-described embodiments and modifications 1 to 3, the lock-side communication unit 22 may perform wireless communication using a diversity antenna having a plurality of antennas. Here, since the gain and communication characteristics are different for each of the plurality of antennas, the setting unit 214 may set a plurality of threshold values for each of the plurality of antennas of the diversity antenna. That is, in the adjustment mode, the setting unit 214 switches the antennas used by the lock-side communication unit 22 in order, and sets a threshold value for each antenna based on the strength of the received signal received by the lock-side communication unit 22 a plurality of times. To do.

Then, the comparison unit 211 of the electric lock device 2 compares the height of the radio signal strength of the radio signal received by the lock side communication unit 22 with the threshold value of the antenna used in the normal mode. Therefore, even when wireless communication is performed between the electric lock device 2 and the mobile terminal 3 using the diversity antenna, it is possible to reduce variations in the operating range in which the electric lock device 2 can be operated using the mobile terminal 3. it can.

In the above embodiments and modifications 1 to 3, the lock-side communication unit 22 and the key-side communication unit 32 communicate with each other by a short-range wireless communication method conforming to the BLE standard, but the lock-side communication unit 22 The communication method between the key side communication unit 32 and the key side communication unit 32 is not limited to the short-range wireless communication method conforming to the BLE standard. The lock-side communication unit 22 and the key-side communication unit 32 may be a wireless communication system conforming to the ZigBee (registered trademark) standard.

In the above-described embodiments and modifications 1 to 3, when the operation unit 25 is operated while the lock control unit 213 can control the electric lock 23, the electric lock 23 is controlled, but the operation of the operation unit 25 is not essential. Absent. That is, the lock control unit 213 unlocks or locks the electric lock 23 when the comparison result of the comparison unit 211 is the comparison result that the received signal strength is equal to or higher than the threshold value and the authentication of the authentication unit 212 is successful. Control may be performed.

In the above-described embodiments and modifications 1 to 3, when the condition that the number of failures exceeds the number of determinations in the normal mode is satisfied, the notification unit 215 transmits a notification signal prompting the setting of the threshold value to the mobile terminal 3. , The predetermined conditions are not limited to the above conditions. For example, the notification unit 215 may transmit a notification signal prompting the setting of the threshold value to the mobile terminal 3 when the condition that the ratio of the number of failures to the number of successful authentications is equal to or greater than a predetermined determination value is satisfied.

In the above-described embodiments and modifications 1 to 3, the mobile terminal 3 is a mobile terminal having a telephone function such as a smart phone, but the mobile terminal 3 does not have a telephone function. The mobile terminal 3 may be a tablet-type computer or the like as long as it is a mobile terminal capable of executing a program (application) for operating the computer as a key of the electric lock device 2.

In the above-described embodiments and modifications 1 to 3, the mobile terminal 3 can perform both unlocking and locking of the electric lock 23, but the mobile terminal 3 unlocks and locks the electric lock 23. It may be the one that performs only one operation.

In the above-described embodiments and modifications 1 to 3, the "doorway" of the building 40 is a door (swing door or sliding door) or window that separates the inside (indoor 42) and the outside (outdoor 41) of the building 40. It may be a door that separates the inside and the outside of a part of the building 40. For example, in an apartment house in which a plurality of dwelling units are housed in a building 40, a tenant building in which a plurality of stores are housed in a building 40, and an office building in which a plurality of offices are housed in a building 40, individual sections (dwelling units, stores, office work) are used. The door that separates the inside and the outside of the building is the entrance to each section.

In the above embodiments and modifications 1 to 3, the electric lock system 1 is applied to the detached house, but it may be applied to each dwelling unit of the apartment house, and the common entrance installed at the common part entrance of the apartment house. It may be the one that operates (so-called lobby intercom). Further, the electric lock system 1 may be applied to a non-residential building 40 such as an office, a store, or a factory.

In the above-described embodiments and modifications 1 to 3, all the components of the electric lock device 2 are housed in the case 28 attached to the entrance door 43, but the case where the components of the electric lock device 2 are a plurality of components. It may be distributed and stored in. For example, the components of the electric lock device 2 may be distributed and stored in a first case attached to the entrance door 43 and a second case installed in the indoor 42 of the building 40.

(Embodiment 2)
In the above embodiment 1 (including a modification), the electric lock device 2 is provided with a setting unit 214 for setting a threshold value, but in the present embodiment, the mobile terminal 3 is provided with a setting unit for setting a threshold value. There is. That is, the key side control circuit 31 of the mobile terminal 3 has a function of a setting unit for setting a threshold value. The configuration described in the second embodiment can be applied in appropriate combination with the configuration (including a modification) described in the first embodiment.

In the electric lock system 1 of the present embodiment, the operation mode of the electric lock device 2 includes a normal mode and an adjustment mode, and the operation mode of the mobile terminal 3 includes a normal mode and an adjustment mode.

The operation of the electric lock system 1 of the present embodiment in the adjustment mode will be described with reference to FIG.

When the user performs a predetermined operation (for example, an operation of continuously pressing the push button switch for a certain period of time or longer) using the operation unit 25 of the electric lock device 2, the lock side control circuit 21 responds to an operation signal from the operation unit 25. The operation mode is set to the adjustment mode (step S11). When the lock-side control circuit 21 starts the operation in the adjustment mode, the lock-side control circuit 21 notifies the user 50 that the operation mode is the adjustment mode by blinking the light emitting diode of the notification unit 26, for example, at a predetermined cycle.

After setting the operation mode of the electric lock device 2 to the adjustment mode, the user 50 is at a place separated from the electric lock device 2 by a predetermined distance L1 (for example, 1 m) in the outdoor 41 while holding the mobile terminal 3 to be adjusted. Stand in.

When the lock-side control circuit 21 starts operating in the adjustment mode, the lock-side control circuit 21 transmits a mode setting signal for setting the operation mode of the mobile terminal 3 to the adjustment mode from the lock-side communication unit 22 (step S12).

When the key-side communication unit 32 of the mobile terminal 3 receives the mode setting signal from the electric lock device 2, the key-side control circuit 31 sets the operation mode as the adjustment mode (step S13) and prepares for receiving the beacon signal.

When a predetermined standby time (for example, a time of about 1 second to several seconds) elapses after the mode setting signal is transmitted, the lock side control circuit 21 transmits a beacon signal from the lock side communication unit 22 with a predetermined transmission output (step S14). , S15, ..., S16). The lock-side communication unit 22 periodically transmits a beacon signal at a predetermined cycle (a cycle of about 0.1 seconds), for example.

When the key side communication unit 32 of the mobile terminal 3 receives the beacon signal transmitted from the electric lock device 2, the key side communication unit 32 measures the reception signal strength of the beacon signal. The key-side control circuit 31 sets a threshold value for the received signal strength based on the received signal strength of the plurality of beacon signals received by the key-side communication unit 32 (step S17). Here, the key side control circuit 31 obtains the maximum value X1 of the received signal strength from the received signal strengths of the plurality of beacon signals, and adds a predetermined adjustment value Z1 to the maximum value X1 of the received signal strength to set the threshold value Y1. To determine as. When the key side control circuit 31 as the setting unit determines the threshold value of the received signal strength, the key side communication unit 32 transmits a radio signal including the determined threshold value information to the electric lock device 2 (step S18), and operates. The mode is set to the normal mode (step S19). Further, when the lock-side communication unit 22 of the electric lock device 2 receives the wireless signal transmitted from the mobile terminal 3, the lock-side control circuit 21 stores the threshold value included in the wireless signal in the lock-side storage unit 24 and operates. The mode is set to the normal mode (step S20).

When the lock-side control circuit 21 of the electric lock device 2 sets a threshold value of the received signal strength in the lock-side storage unit 24, the electric lock system 1 operates in the normal mode described in "(2.2) Normal mode operation". I do.

By the way, in the second embodiment, the key side control circuit 31 of the mobile terminal 3 may compare the height of the received signal strength and the threshold value. That is, the mobile terminal 3 may have the function of the comparison unit 211 of the electric lock device 2. In this case, in the normal mode, the key-side control circuit 31 transmits a beacon response from the key-side communication unit 32 to the electric lock device 2 if the reception signal strength of the beacon signal received by the key-side communication unit 32 is higher than the threshold value. You may.

As described above, the electric lock system 1 of the first aspect includes an electric lock device 2, a mobile terminal 3, and a setting unit 214. The electric lock device 2 controls an electric lock 23 that unlocks or locks the entrance (entrance door 43) of the building 40. The mobile terminal 3 performs at least one of a doorway locking operation and an unlocking operation. The setting unit 214 makes settings related to the operation range that can be operated by the mobile terminal 3. The mobile terminal 3 includes a key-side storage unit 34 that stores key information for authentication, and a key-side communication unit 32 that performs wireless communication using radio waves as a medium. The operation mode of the electric lock device 2 includes a normal mode and an adjustment mode. The electric lock device 2 includes a lock-side communication unit 22, a lock-side storage unit 24, a comparison unit 211, and a lock control unit 213. The lock-side communication unit 22 performs wireless communication using radio waves as a medium. The lock-side storage unit 24 stores authentication information including key information of one or more mobile terminals 3 and a threshold value set by the setting unit 214 for each mobile terminal 3. The comparison unit 211 compares the height of the received signal strength and the threshold value in at least one of the lock-side communication unit 22 and the key-side communication unit 32. When the operation mode is the adjustment mode, the setting unit 214 sets the threshold value based on the measurement result of the received signal strength in at least one of the lock side communication unit 22 and the key side communication unit 32. The lock control unit 213 is a result that the comparison result of the comparison unit 211 shows that the received signal strength is higher than the threshold value when the operation mode is the normal mode, and is included in the radio signal received by the lock side communication unit 22. When the key information and the authentication information are successfully authenticated, the electric lock 23 is controlled.

According to the electric lock system 1 of the first aspect, the lock control unit 213 is a result that the comparison result of the comparison unit 211 is higher than the threshold value when the operation mode is the normal mode. If the authentication is successful, the electric lock 23 is controlled. Since the setting unit 214 sets the threshold value of the received signal strength for each mobile terminal 3 when the operation mode is the setting mode, even if the transmission power of the mobile terminal 3 varies from mobile terminal 3 to mobile terminal 3, it depends on the mobile terminal 3. It is possible to reduce variations in the operating range that can be operated.

In the electric lock system 1 of the second aspect, in the first aspect, the threshold value may include a first threshold value and a second threshold value. The lock control unit 213 compares the height of the received signal strength with the first threshold value when the mobile terminal 3 is located outdoors 41 of the building 40, and compares the received signal strength with the received signal strength when the mobile terminal 3 is located indoors 42 of the building 40. The height may be compared with the second threshold value.

According to the electric lock system 1 of the second aspect, there are variations in the operation range that can be operated by the mobile terminal 3 both when the mobile terminal 3 is outdoors 41 and when the mobile terminal 3 is indoors 42. It can be reduced.

In the electric lock system 1 of the third aspect, in the first or second aspect, the setting unit 214 measures the reception signal strength of the key side communication unit 32 and the reception signal strength of the lock side communication unit 22. The threshold value may be set based on the measurement result of.

According to the electric lock system 1 of the third aspect, even if both the reception signal strength of the key-side communication unit 32 and the reception signal strength of the lock-side communication unit 22 vary from individual to individual, the operation by the mobile terminal 3 can be performed. It is possible to reduce the variation in the possible operating range.

In the electric lock system 1 of the fourth aspect, in any one of the first to third aspects, the key side communication unit 32 and the lock side communication unit 22 perform wireless communication using a plurality of frequency channels. Therefore, the setting unit 214 may set a plurality of threshold values for each of the plurality of frequency channels.

According to the electric lock system 1 of the fourth aspect, even when the key-side communication unit 32 and the lock-side communication unit 22 perform wireless communication using a plurality of frequency channels, the operation can be operated by the mobile terminal 3. The variation in the range can be reduced.

In the electric lock system 1 of the fifth aspect, in any one of the first to fourth aspects, the setting unit 214 may set the threshold value based on the result of a plurality of measurements of the received signal strength.

According to the electric lock system 1 of the fifth aspect, since the setting unit 214 sets the threshold value based on the result of a plurality of measurement of the received signal strength, the received signal strength fluctuates due to a change in the communication environment or the like. Even in this case, it is possible to reduce variations in the operating range that can be operated by the mobile terminal 3.

In the electric lock system 1 of the sixth aspect, in any one of the first to fifth aspects, the key-side communication unit 32 and the lock-side communication unit 22 wirelessly communicate using a diversity antenna having a plurality of antennas. May be done. The setting unit 214 may set a plurality of threshold values for each of the plurality of antennas.

According to the electric lock system 1 of the sixth aspect, even when the key-side communication unit 32 and the lock-side communication unit 22 perform wireless communication using the diversity antenna, the operation range that can be operated by the mobile terminal 3 The variation can be reduced.

In the electric lock system 1 of the seventh aspect, in any one of the first to sixth aspects, when the threshold value obtained by the setting unit 214 based on the measurement result of the received signal strength is lower than the lower limit value. The threshold value may be set to the lower limit value. When the value of the threshold value obtained by the setting unit 214 based on the measurement result of the received signal strength exceeds the upper limit value, the threshold value may be set to the upper limit value.

According to the electric lock system 1 of the seventh aspect, the threshold value is not set to a value lower than the lower limit value or a value higher than the upper limit value, so that the setting unit 214 is equal to or less than the lower limit value and less than or equal to the upper limit value. The threshold can be set in the range.

In the electric lock system 1 of the eighth aspect, in any one of the first to seventh aspects, the electric lock device 2 may further include a notification unit 215. The notification unit 215 sends a notification signal prompting the setting unit 214 to set a threshold value when the history satisfies a predetermined condition based on the history of the comparison result and the authentication result of the comparison unit 211 when the operation mode is the normal mode. A notification unit 215 for transmitting to the mobile terminal 3 is further provided.

According to the electric lock system 1 of the eighth aspect, when the history of the comparison result and the authentication result of the comparison unit 211 satisfies a predetermined condition due to a change in the communication environment or the like, the notification unit 215 sends a notification signal. It is transmitted to the mobile terminal 3. As a result, the electric lock system 1 can prompt the user 50 who owns the mobile terminal 3 to set the threshold value.

The electric lock device 2 of one aspect is the electric lock device 2 in the electric lock system 1 according to any one of items 1 to 8, and has a setting unit 214.

The electric lock device 2 can reduce variations in the operating range that can be operated by the mobile terminal 3 even when the transmission power of the mobile terminal 3 varies from mobile terminal to mobile terminal 3.

1 Electric lock system 2 Electric lock device 3,3A, 3B, 3C Mobile terminal 21 Lock side control circuit 211 Comparison unit 212 Authentication unit 213 Lock control unit 214 Setting unit 215 Notification unit 22 Lock side communication unit 23 Electric lock 24 Lock side storage Part 32 Key side communication part 34 Key side storage part 40 Building 41 Outdoor 42 Indoor 43 Entrance door Y1, Y2 Threshold

Claims (9)

A lock control unit that controls an electric lock that unlocks or locks the doorway of a building,
Tablets that performs wireless communication for medium waves between the portable terminal for performing at least one operation of the unlocking operation and the locking operation of the doorway having a key-side communication unit which performs wireless communication of the radio wave as a medium With the side communication unit
A setting unit that makes settings related to the operation range in which the operation of the electric lock device by the mobile terminal is effective, and
With a comparison section ,
There are two operation modes for the lock control unit : normal mode and adjustment mode .
The setting unit, when the operation mode is the adjustment mode, the threshold value for each of said mobile terminal based on the measurement result of the received signal strength that put on at least one of the lock-side communication unit and the key-side communication unit Set and
The comparison unit compares the high and low of the received signal strength and the threshold value in at least one of the lock-side communication unit and the key-side communication unit.
Before Kijo control unit, when said operation mode is the is the normal mode, the comparison result is the received signal strength of the comparison unit is the result of higher than the threshold value, and the lock-side communication section receives the successful authentication of the contained Ru key information to the wireless signal, and controls the electric lock,
The threshold includes a first threshold and a second threshold.
The lock control unit compares the height of the received signal strength with the first threshold value when the mobile terminal is outside the building, and when the mobile terminal is inside the building, the received signal strength is compared. And the height of the second threshold value are compared.
An electric lock system that features that. A lock control unit that controls an electric lock that unlocks or locks the doorway of a building,
A lock that has a key-side communication unit that performs wireless communication using radio waves and performs wireless communication using radio waves with a mobile terminal for performing at least one of the unlocking operation and the locking operation of the doorway. With the side communication unit
A setting unit that makes settings related to the operation range in which the operation of the electric lock device by the mobile terminal is effective, and
With a comparison section,
There are two operation modes for the lock control unit: normal mode and adjustment mode.
When the operation mode is the adjustment mode, the setting unit sets a threshold value for each mobile terminal based on the measurement result of the received signal strength in at least one of the lock-side communication unit and the key-side communication unit. ,
The comparison unit compares the high and low of the received signal strength and the threshold value in at least one of the lock-side communication unit and the key-side communication unit.
In the lock control unit, when the operation mode is the normal mode, the comparison result of the comparison unit is the result that the received signal strength is higher than the threshold value, and the lock side communication unit receives the signal. If the key information contained in the wireless signal is successfully authenticated, the electric lock is controlled.
The setting unit sets the threshold value based on the measurement result of the received signal strength at the key-side communication unit and the measurement result of the received signal strength at the lock-side communication unit.
An electric lock system that features that. A lock control unit that controls an electric lock that unlocks or locks the doorway of a building,
A lock that has a key-side communication unit that performs wireless communication using radio waves and performs wireless communication using radio waves with a mobile terminal for performing at least one of the unlocking operation and the locking operation of the doorway. With the side communication unit
A setting unit that makes settings related to the operation range in which the operation of the electric lock device by the mobile terminal is effective, and
Comparison part and
With a notification section,
There are two operation modes for the lock control unit: normal mode and adjustment mode.
When the operation mode is the adjustment mode, the setting unit sets a threshold value for each mobile terminal based on the measurement result of the received signal strength in at least one of the lock-side communication unit and the key-side communication unit. ,
The comparison unit compares the high and low of the received signal strength and the threshold value in at least one of the lock-side communication unit and the key-side communication unit.
In the lock control unit, when the operation mode is the normal mode, the comparison result of the comparison unit is the result that the received signal strength is higher than the threshold value, and the lock side communication unit receives the signal. If the key information contained in the wireless signal is successfully authenticated, the electric lock is controlled.
Based on the history of the comparison result and the authentication result of the comparison unit when the operation mode is the normal mode, the notification unit sets the threshold value by the setting unit when the history satisfies a predetermined condition. Send a prompting notification signal to the mobile terminal,
An electric lock system that features that. The key-side communication unit and the lock-side communication unit perform wireless communication using a plurality of frequency channels.
The electric lock system according to any one of claims 1 to 3, wherein the setting unit sets a plurality of the threshold values for each of the plurality of frequency channels. The electric lock system according to any one of claims 1 to 4, wherein the setting unit sets the threshold value based on the result of a plurality of measurements of the received signal strength. The key-side communication unit and the lock-side communication unit perform wireless communication using a diversity antenna having a plurality of antennas.
The electric lock system according to any one of claims 1 to 5, wherein the setting unit sets a plurality of the threshold values for each of the plurality of antennas. When the threshold value obtained based on the measurement result of the received signal strength falls below the lower limit value, the setting unit sets the threshold value to the lower limit value and obtains the threshold value based on the measurement result of the received signal strength. The electric lock system according to any one of claims 1 to 6, wherein when the value of the threshold value exceeds the upper limit value, the threshold value is set to the upper limit value. The mobile terminal for performing at least one of the unlocking operation and the locking operation of the doorway is further provided.
The electric lock system according to any one of claims 1 to 7, wherein the electric lock system is characterized. The electric lock device in the electric lock system according to any one of claims 1 to 8.
An electric lock device having the setting unit.

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