JP2018145739A - Electric lock system and electric lock device - Google Patents

Abstract

An electric lock system and an electric lock device capable of improving the certainty of an unlocking operation using a key device are provided. An electric lock system (1) includes a key device (3), a lock-side communication section (22), a human detection section (23), and a lock-side control section (21). The key device 3 has a key-side communication unit 32 that performs wireless communication. The lock-side communication unit 22 wirelessly communicates with the key-side communication unit 32 . The human detection unit 23 detects the presence or absence of a person in the detection area outside the doorway of the building. When the human detection unit 23 detects the presence of a person, the lock-side control unit 21 performs authentication processing for authenticating the key information received by the lock-side communication unit 22 from the key-side communication unit 32, and the authentication of the key information is completed. Unlocks a doorway on success. [Selection drawing] Fig. 1

Description

  The present invention 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 locks or unlocks a doorway of a building.

  Conventionally, there has been an electric lock system including a non-contact key and an electric lock device (see, for example, Patent Document 1).

  In the electric lock system of Patent Document 1, when a non-contact key is brought close to the communicable area of the electric lock device, the non-contact key is automatically activated, and authentication information is transmitted from the non-contact key to the electric lock device by non-contact communication. Sent. When receiving the authentication information from the non-contact key, the electric lock device compares the authentication information with previously registered verification information, and when the authentication is successful, unlocks or locks the lock provided on the door.

JP 2012-87496 A

  In the electric lock system of Patent Document 1, the communicable distance between the non-contact key and the electric lock device may vary depending on the orientation of the antenna of the non-contact key (key device). Therefore, although the non-contact key is near the electric lock device, the electric lock device may fail to authenticate the non-contact key and the lock may not be unlocked. Moreover, although the non-contact key is far from the electric lock device, the electric lock device may perform the non-contact key authentication process and unlock the lock.

  An object of the present invention is to provide an electric lock system and an electric lock device that can improve the reliability of an unlocking operation using a key device.

  An electric lock system according to an aspect of the present invention includes a key device, a lock-side communication unit, a person detection unit, and a lock-side control unit. The key device has a key side communication unit that performs wireless communication. The lock side communication unit performs wireless communication with the key side communication unit. The human detection unit detects the presence or absence of a person in a detection area outside the entrance of the building. The lock side control unit performs an authentication process in which the lock side communication unit authenticates the key information received from the key side communication unit when the human detection unit detects the presence of a person, and when the key information is successfully authenticated. Unlock the doorway.

  An electric lock device according to an aspect of the present invention is used in the electric lock system, and includes the lock-side communication unit, the person detection unit, and the lock-side control unit.

  According to the present invention, the certainty of the unlocking operation using the key device can be improved.

FIG. 1 is a block diagram of an electric lock system according to an embodiment of the present invention. FIG. 2 is an explanatory view showing an example of use of the above electric lock system. FIG. 3 is a flowchart showing the operation of the electric lock system. FIG. 4 is a flowchart showing the operation of the electric lock system according to the first modification of the embodiment of the present invention.

  The embodiment described below is only one of various embodiments of the present invention. Embodiments of the present invention are not limited to the following embodiments, and may include other embodiments. In addition, the following embodiments can be variously changed according to the design or the like as long as they do not depart from the technical idea according to the present invention.

(1) Outline As shown in FIGS. 1 and 2, the electric lock system 1 according to the present embodiment includes an electric lock device 2 and a key device 3.

  The electric lock device 2 locks or unlocks the entrance 11 of the building 10. The electric lock device 2 of the present embodiment locks and unlocks the doorway 11 by electrically driving the lock device 4 that locks and unlocks the doorway 11. The “entrance / exit” of the building 10 is a door or window that separates the inside (inside house 12) and outside (outside house 13) of the building 10, and is, for example, an entrance door, a service door, or a sweep window. The electric lock device 2 is configured to be communicable with the key device 3, and electrically switches between a locked state in which the doorway 11 is locked and an unlocked state in which the doorway 11 is unlocked by communication with the key device 3. It can be carried out.

  The key device 3 has a communication function with the electric lock device 2. In the present embodiment, the communication method between the key device 3 and the electric lock device 2 is wireless communication using radio waves as a medium. The key device 3 is battery-driven and configured to have an appropriate size and weight so that it can be carried by the user 40.

  This embodiment demonstrates as an example the case where the building 10 is a detached house. The user 40 is a person who possesses (carries) the key device 3 among the residents of the building 10 (detached house).

  For example, when the user 40 who is outside the home 13 enters the detection area 14 of the human detection unit 23 arranged on the outside 13 side of the entrance 11 when the user 40 returns home, the electric lock device 2 is connected to the key device 3. Start wireless communication. The electric lock device 2 performs wireless communication with the key device 3, receives key information from the key device 3, performs authentication processing for authenticating the key information received from the key device 3, and when the authentication is successful, the door 11 To unlock. That is, since the electric lock device 2 performs an unlocking operation for switching from the locked state to the unlocked state by communication with the key device 3, the user 40 can open the entrance 11 and enter the house 12. On the other hand, when the authentication of the key information received from the key device 3 fails, the electric lock device 2 does not unlock the entrance 11 so that a person who does not have the regular key device 3 cannot enter the home 12. The electric lock system 1 is configured.

(2) Details Hereinafter, the configuration and operation of the electric lock system 1 will be described in detail based on the drawings.

(2.1) Configuration of Key Device As shown in FIG. 1, the key device 3 according to the present embodiment includes a key side control unit 31, a key side communication unit 32, and a storage unit 33. The key device 3 further includes a portable case 34 (see FIG. 2) that houses the key-side control unit 31, the key-side communication unit 32, and the storage unit 33. The key device 3 operates by receiving power supply from, for example, a secondary battery housed in the case 34.

  The key-side communication unit 32 includes a communication module that performs wireless communication using a short-range wireless communication method that does not require a wireless station license. The key side communication unit 32 is configured to be able to perform bidirectional communication with the lock side communication unit 22 of the electric lock device 2. As this type of communication method, for example, there is a communication method such as BLE (Bluetooth (registered trademark) Low Energy). BLE is a name of version 4.0 in the specification of Bluetooth (registered trademark) which is a wireless PAN (Personal Area Network) technology. Since BLE uses radio waves in the 2.45 GHz band, the directivity of the antenna is sharper than metal LF (Low Frequency) radio waves, and metal reflection is likely to occur. Tends to fluctuate.

  The key control unit 31 includes a microcomputer having, for example, a CPU (Central Processing Unit) and a memory. The function of the key control unit 31 is realized by the CPU executing a program stored in the memory. The program executed by the CPU is provided through an electric communication line such as the Internet, but may be provided by being recorded on a recording medium such as a memory card or may be stored in advance in a memory of a microcomputer.

  The storage unit 33 includes, for example, a nonvolatile memory such as an EEPROM (Electrically Erasable and Programmable Read Only Memory) or a flash memory. The storage unit 33 stores key information unique to the key device 3. This key information is information used for authentication with the corresponding electric lock device 2, and is set by the electric lock device 2 or an external server.

  The key device 3 of the present embodiment is a general-purpose information terminal such as a smartphone, for example. When the key device 3 is a general-purpose information terminal, dedicated application software (a program executed by the key-side control unit 31) is installed in the information terminal. When the CPU of the information terminal executes the application software, the CPU of the information terminal Functions as the key-side control unit 31. In other words, the application software is a program for causing a computer (information terminal) to function as the key-side control unit 31 in the key device 3. According to this configuration, a general-purpose information terminal can function as the key device 3 without using a dedicated key device.

(2.2) Configuration of Electric Lock Device As shown in FIG. 1, the electric lock device 2 according to the present embodiment includes a lock side control unit 21, a lock side communication unit 22, a person detection unit 23, and a lock drive. A unit 24, an operation unit 25, a notification unit 26, a storage unit 27, and a measurement unit 28 are provided.

  The case 29 of the electric lock device 2 is provided integrally with a handle of a door (for example, an entrance door) that serves as the doorway 11 (see FIG. 2), for example. The case 29 includes a lock side control unit 21, a lock side communication unit 22, a person detection unit 23, a lock drive unit 24, an operation unit 25, a notification unit 26, a storage unit 27, and a measurement unit 28. Is held. The electric lock device 2 may operate by receiving power supply from an external power source such as a commercial power source, or may be battery-driven.

  The lock side control unit 21 includes a microcomputer having a CPU and a memory. The function of the lock control unit 21 is realized by the CPU executing the program stored in the memory. In the present embodiment, the lock control unit 21 has functions such as an authentication unit 211. Here, the program executed by the CPU is recorded in advance in the memory of the microcomputer, but may be provided by being recorded through a telecommunication line such as the Internet or a recording medium such as a memory card.

  The lock side communication unit 22 includes a communication module that performs communication using the same communication method as the key side communication unit 32 of the key device 3, and is configured to be capable of bidirectional communication with the key side communication unit 32. Yes.

  The measuring unit 28 measures a received signal strength indicator (RSSI) received by the lock side communication unit 22 from the key device 3 (key side communication unit 32).

  The person detection unit 23 detects the presence or absence of a person in the detection area 14 (see FIG. 2) outside the entrance 11. The human detection unit 23 includes, for example, a pyroelectric infrared detection element. The human detection unit 23 detects the presence of a person by detecting infrared rays (heat rays) emitted from the human body with a pyroelectric infrared detection element. Here, the detection area 14 of the human detection unit 23 is set to a narrower range than the communicable area 15 of the lock side communication unit 22. The human detection unit 23 is less likely to detect small animals such as dogs and cats, and the lower limit of the height of the detection area 14 is the average height of a child or a wheelchair so that a child or a person on a wheelchair can be detected. It is preferable to set according to the height of the person.

  The lock drive unit 24 locks or unlocks the doorway 11 by operating the lock device 4 installed at the doorway 11 in accordance with a control signal input from the lock side control unit 21. In the present embodiment, the electric lock device 2 and the lock device 4 are configured separately, but the electric lock device 2 may include the lock device 4.

  The operation unit 25 includes, for example, an operation button 251 provided on the outside entrance 13 side of the entrance 11 and an operation button 252 provided on the interior 12 side of the entrance 11. The operation unit 25 has a function of accepting an operation performed by the user 40 to lock or unlock the doorway 11. When the operation unit 25 (the operation button 251 or the operation button 252) receives the operation of the user 40, an operation signal is output from the operation unit 25 to the lock side control unit 21.

  The notification unit 26 includes, for example, a green light emitting diode and a red light emitting diode. The light-emitting diodes (green light-emitting diode and red light-emitting diode) included in the notification unit 26 are attached to the case 29 so as to be visible from the outside of the house 13. The success or failure of the authentication process is notified by turning on, blinking, or turning off the light emitting diode of the notification unit 26. The notification unit 26 may include a light emitting diode that emits light of another color. The notification unit 26 may include a display device other than the light emitting diode, and may include a small display such as a liquid crystal display or an organic EL (Electro Luminescence) display.

  The storage unit 27 includes, for example, a nonvolatile memory such as an EEPROM or a flash memory. The storage unit 27 stores at least one authentication information. The authentication information corresponds to the key information of the key device 3. For example, when a plurality of users (residents or the like) who use the building 10 each have an individual key device 3, that is, when the electric lock system 1 includes a plurality of key devices 3, the storage unit 27 stores the plurality of these devices. A plurality of authentication information corresponding to the key information of the key device 3 is registered.

  When the lock side communication unit 22 receives a signal (ID signal) including key information from the key device 3 (key side communication unit 32), the authentication unit 211 compares the key information included in the ID signal with the authentication information. Thus, the authentication process of the key device 3 is executed. When the authentication unit 211 succeeds in the authentication of the key device 3, the lock side control unit 21 controls the lock drive unit 24 to drive the lock device 4 and unlocks or locks the doorway 11.

(2.3) Operation Next, in the electric lock system 1 according to the present embodiment, an operation when the user 40 located outside the home 13 returns home will be described with reference to FIG.

  The lock side control unit 21 of the electric lock device 2 causes the human detection unit 23 to perform a detection operation for detecting the presence or absence of a person in the detection area 14 outside the entrance 11 (S1).

  If the human detection unit 23 does not detect the presence of a person in the detection area 14 (S2: No), the lock side control unit 21 causes the human detection unit 23 to continuously perform a human detection operation (S1).

  When the human detection unit 23 detects the presence of a person in the detection area 14 (S2: Yes), the lock side control unit 21 controls the lock side communication unit 22 to start wireless communication with the key device 3 (S3). ). In this embodiment, the communication method of the lock side communication unit 22 and the key side communication unit 32 is BLE, the key side communication unit 32 of the key device 3 is a master, and the lock side communication unit 22 of the electric lock device 2 is a slave. Therefore, the lock side communication unit 22 serving as a slave transmits an advertising packet to the key side communication unit 32 serving as a master.

  When the key side communication unit 32 of the key device 3 possessed by the user 40 in the detection area 14 receives the advertising packet from the lock side communication unit 22, the key side communication unit transmits a connection request packet to the lock side communication unit 22. The connection between 32 and the lock side communication unit 22 is established.

  When the connection between the lock side communication unit 22 and the key side communication unit 32 is established, the lock side control unit 21 starts authentication of the key device 3 (S4). That is, the authentication unit 211 of the lock side control unit 21 authenticates the key device 3 by comparing the key information received by the lock side communication unit 22 from the key side communication unit 32 with the authentication information.

  When the authentication of the key device 3 by the authentication unit 211 is successful (S5: Yes), for example, the lock side control unit 21 turns on the green light emitting diode of the notification unit 26 to display (notify) that the authentication is successful ( S6), a control signal is output to the lock drive unit 24 to unlock the lock device 4 (S7). The user 40 having the key device 3 can grasp that the authentication of the key device 3 has been successful by looking at the display of the notification unit 26, and can enter the house 12 through the doorway 11 by opening the door.

  When the authentication of the key device 3 by the authentication unit 211 fails (S5: No), the lock-side control unit 21 turns on or blinks the red light emitting diode of the notification unit 26 to display that the authentication has failed (notification). However, the locking device 4 is not unlocked (S8). The user 40 having the key device 3 can grasp that the authentication of the key device 3 has failed by looking at the display of the notification unit 26. Note that the lock-side control unit 21 also turns on or blinks the red light-emitting diode of the notification unit 26, for example, when authentication fails because the lock-side communication unit 22 cannot receive the wireless signal from the key-side communication unit 32. It may be displayed that authentication has failed.

  Thus, the electric lock device 2 causes the authentication unit 211 to perform an authentication process for authenticating the key device 3 when the human detection unit 23 detects the presence of a person in the detection area 14. Since the detection area 14 of the human detection unit 23 is narrower than the communicable area 15 between the lock side communication unit 22 and the key side communication unit 32, the user 40 who owns the key device 3 is in the detection area 14. The electric lock device 2 can authenticate the key device 3 possessed by the user 40.

  When the user 40 who owns the key device 3 is in the detection area 14, the electric lock device 2 authenticates the key device 3 possessed by the user 40. Even when the reception strength of the received signal at the communication unit 22 is reduced, the authentication process is performed. Therefore, the user 40 does not need to change the direction of the key device 3 or take out the key device 3 from the bag in order to increase the reception strength of the received signal, which improves usability.

  In addition, in a state where the user 40 who owns the key device 3 is outside the detection area 14 in the communicable area 15, the electric lock device 2 performs the authentication process of the key device 3 and unlocks the lock device 4. It is hard to happen. Therefore, since the entrance / exit 11 is unlocked in a state where the user 40 who owns the key device 3 is away from the entrance / exit 11, a person other than the user 40 who owns the key device 3 may enter the building 10. Can be reduced.

  The lock side communication unit 22 communicates with the key side communication unit 32 when the human detection unit 23 detects the presence of a person in the detection area 14, and the human detection unit 23 detects the person in the detection area 14. When the presence of the key is not detected, communication with the key communication unit 32 is not performed. Therefore, the electric lock system 1 of this embodiment can reduce the power consumption in the lock | rock side communication part 22 of the electric lock apparatus 2. FIG. Further, when the electric lock device 2 is installed in each of a plurality of neighboring dwellings, the lock side communication unit 22 causes the key side communication unit 32 when the person detection unit 23 detects the presence of a person in the detection area 14. Therefore, the frequency of radio signal transmission can be reduced and the frequency of radio signal interference can be reduced.

  By the way, when a person who does not have the key device 3 enters the detection area 14, the person detection unit 23 detects the presence of a person (S2: Yes), and the lock side communication unit 22 transmits an advertising packet, but communication is possible. Since there is no key terminal in area 15, a response signal from the key terminal cannot be received. The lock-side control unit 21 transmits advertising packets from the lock-side communication unit 22 at predetermined time intervals until a predetermined time has elapsed after the human detection unit 23 detects the presence of a person. If communication with the key device 3 cannot be established, the connection process with the key device 3 is terminated. Therefore, when a person who does not have the key device 3 enters the detection area 14 of the human detection unit 23, the lock device 4 is not unlocked even if the human detection unit 23 detects a person in the detection area 14. The person who does not have the key device 3 can be prevented from entering the building 10.

  Further, the lock side control unit 21 of the electric lock device 2 starts the authentication process of the key device 3 when the human detection unit 23 detects the presence of a person in the detection area 14, and if the authentication of the key device 3 fails, The notification unit 26 displays an authentication failure. The user who owns the key device 3 can grasp from the display of the notification unit 26 that the unlocking of the lock device 4 has failed, and the key device 3 and the electric lock device 2 can be successfully authenticated. It is possible to take measures such as changing the position and orientation of 3.

(2.4) Modified Example Hereinafter, an electric lock system according to a modified example of the embodiment will be described. In addition, each structure of the modified example demonstrated below is applicable in combination with each structure demonstrated in the said embodiment suitably.

(2.4.1) Modification 1
In the electric lock system 1 of the above embodiment, when the person detection unit 23 detects the presence of a person, the lock side control unit 21 has the reception strength of the radio signal received by the lock side communication unit 22 from the key side communication unit 32. Authentication processing may be performed when a predetermined threshold value is exceeded.

  In the electric lock system 1 according to the first modification, the operation when the user 40 located outside the home 13 returns home will be described with reference to FIG.

  The lock side control unit 21 of the electric lock device 2 causes the human detection unit 23 to perform a detection operation for detecting the presence or absence of a person in the detection area 14 outside the entrance 11 (S11).

  If the human detection unit 23 does not detect the presence of a person in the detection area 14 (S12: No), the lock side control unit 21 causes the human detection unit 23 to continuously perform a human detection operation (S11).

  When the human detection unit 23 detects the presence of a person in the detection area 14 (S12: Yes), the lock side control unit 21 controls the lock side communication unit 22 to start wireless communication with the key device 3 (S13). ). In the first modification, the lock side communication unit 22 serving as a slave transmits an advertising packet to the key side communication unit 32 serving as a master.

  When the key side communication unit 32 of the key device 3 in the detection area 14 receives the advertising packet from the lock side communication unit 22, it transmits a connection request packet to the lock side communication unit 22.

  When the lock side communication unit 22 receives the connection request packet transmitted from the key side communication unit 32, the measurement unit 28 receives the connection request packet (radio signal) received by the lock side communication unit 22 from the key side communication unit 32. Measure strength. Then, the lock-side control unit 21 compares the received intensity measured by the measurement unit 28 with the predetermined threshold value (S14). This “threshold value” may be set to a value lower than the reception intensity when the key device 3 is present in the detection area 14.

  If the reception intensity measured by the measurement unit 28 is equal to or less than the threshold (S14: No), the lock side communication unit 22 returns to the process of S11 without performing the authentication process.

  When the reception intensity measured by the measurement unit 28 exceeds the threshold (S14: Yes), the lock side control unit 21 establishes a connection between the lock side communication unit 22 and the key side communication unit 32, and Authentication of the device 3 is started (S15). That is, the authentication unit 211 of the lock side control unit 21 authenticates the key device 3 by comparing the key information received by the lock side communication unit 22 from the key side communication unit 32 with the authentication information.

  When the authentication of the key device 3 by the authentication unit 211 is successful (S16: Yes), the lock side control unit 21 turns on the green light emitting diode of the notification unit 26 to display that the authentication is successful (S17), A control signal is output to the drive unit 24 to unlock the locking device 4 (S18). The user 40 having the key device 3 can grasp that the authentication of the key device 3 has been successful by looking at the display of the notification unit 26, and can enter the house 12 through the doorway 11 by opening the door.

  When the authentication of the key device 3 by the authentication unit 211 fails (S16: No), the lock side control unit 21 turns on or blinks the red light emitting diode of the notification unit 26 to display that the authentication has failed (S19). The locking device 4 is not unlocked. The user 40 having the key device 3 can grasp that the authentication of the key device 3 has failed by looking at the display of the notification unit 26.

  Thus, in the first modification, even when the human detection unit 23 detects the presence of a person in the detection area 14, if the reception intensity measured by the measurement unit 28 is equal to or less than the threshold value, the lock-side control unit 21. Does not perform the authentication process. Therefore, the reception intensity measured by the measurement unit 28 is a threshold value when the user 40 holding the key device 3 is away from the electric lock device 2 and there is a person who does not have the key device in the detection area 14. In the following cases, the lock side control unit 21 does not perform the authentication process. Therefore, in such a case, the possibility that the entrance / exit 11 is unlocked and a person who does not have the key device enters the building 10 can be reduced.

  In the first modification, the lock-side control unit 21 performs the authentication process when the reception strength exceeds a predetermined threshold. However, depending on the threshold setting, the reception strength may be a predetermined threshold. Authentication processing is performed when the value is greater than or equal to the value. That is, there is no technical difference between the reception strength exceeding the threshold and the reception strength being equal to or higher than the threshold.

(2.4.2) Modification 2
In the electric lock system 1 of the above-described embodiment and Modification 1, the lock-side control unit 21 may set validity / invalidity of the detection result of the human detection unit 23. When the detection result of the human detection unit 23 is set to be valid, the lock side control unit 21 performs an authentication process when the human detection unit 23 detects the presence of a person. When the detection result of the person detection unit 23 is set to be invalid, the lock side control unit 21 does not perform authentication processing even if the person detection unit 23 detects the presence of a person.

  For example, the lock-side control unit 21 invalidates the detection result of the person detection unit 23 when the key device 3 exists in the home 12, and the person detection unit 23 when the key device 3 does not exist in the home 12. Enable the detection result. The lock side communication unit 22 has an antenna on each of the inside 12 side and the outside 13 side of the doorway 11, for example. Since the radio wave is attenuated by the door, when the key device 3 is outside the house 13, the reception gain of the antenna on the in-home 12 side is smaller than the reception gain of the antenna on the outside 13 side. When the key device 3 is in the home 12, the reception gain of the antenna on the home 12 side is larger than the reception gain of the antenna on the outside 13 side. When communicating with the key device 3, the lock-side control unit 21 compares the reception gain of the antenna on the in-home 12 side of the lock-side communication unit 22 with the reception gain of the antenna on the out-of-home 13 side. It is determined whether the inside key device 3 is in the house 12 or outside the house 13.

  When the lock-side control unit 21 determines that the key device 3 in communication is in the home 12, it sets the detection result of the person detection unit 23 to be invalid, and determines that the key device 3 in communication is outside the home 13. The detection result of the human detection unit 23 is set to be valid. The lock-side control unit 21 performs authentication processing when the communicating key device 3 is outside the home 13, but does not perform authentication processing when the communicating key device 3 is in the home 12. Therefore, when a person who does not have the key device 3 enters the detection area 14, the electric lock device 2 wirelessly communicates with the key device 3 in the home 12 and the authentication of the key device 3 in the home 12 is successful. Thus, it is possible to prevent the locking device 4 from being unlocked.

  When the lock side control unit 21 sets the detection result of the human detection unit 23 to be invalid, the lock side control unit 21 detects that the lock side communication unit when the operation unit 25 (the operation button 251 or the operation button 252) is operated. The wireless communication with the key device 3 may be started at 22. The lock side control unit 21 of the electric lock device 2 can unlock the lock device 4 even when the detection result of the human detection unit 23 is set to invalid.

  Further, when the lock device 4 is locked after the lock device 4 is locked after the lock device 4 is unlocked after the authentication of the key device 3 possessed by the user 40 who has come home is successful, the lock side control unit 21 locks the lock device 4. Until the predetermined time elapses, the detection result of the human detection unit 23 may be invalidated. There is a high possibility that the user 40 who has returned home is in the vicinity of the entrance / exit 11 in the home 12 until a certain time has elapsed since the locking device 4 was locked. At this time, if there is a person who does not have the key device in the detection area 14 outside the entrance 11, the person detection unit 23 detects the person, but the lock side control unit 21 invalidates the detection result of the person detection unit 23. Therefore, the locking device 4 can be prevented from being unlocked.

(2.4.3) Other Modifications In the above embodiment and Modifications 1 and 2, the key device 3 is a general-purpose information terminal such as a smartphone, but the key device 3 is portable by the user 40. A tag-shaped device formed in a size may be used, and for example, it is used by being attached to a bag possessed by the user 40. The key device 3 is not limited to a tag-like device, and may be, for example, an IC (Integrated Circuit) card.

  In the above embodiment and Modifications 1 and 2, the notification unit 26 of the electric lock device 2 notifies the success and failure of the authentication by a visual method (for example, lighting, blinking, turning off, etc. of the light emitting diode). The method of notifying the success and failure of authentication is not limited to the visual method. The notification unit for notifying the success and failure of the authentication may be, for example, a speaker provided to notify the success or failure of the authentication with sound, or may be notified with both sound and light.

  Moreover, in said embodiment and the modification 1, 2, the notification part 26 of the electric lock apparatus 2 has notified the success and failure of authentication, but it should just notify at least the failure of authentication.

  In the above embodiment and Modifications 1 and 2, the human detection unit 23 detects infrared rays (heat rays) radiated from the human body, but the human detection unit 23 is not limited to those detecting infrared rays. The presence or absence of a person may be detected by a sensor such as a sound wave sensor or a Doppler sensor. In addition, the human detection unit 23 includes an image sensor that images the detection area 14 outside the entrance 11 and detects the presence or absence of a person in the detection area 14 by performing image processing on the image data captured by the image sensor. Also good.

  In the above embodiment and the first and second modifications, the electric lock device 2 starts wireless communication with the key device 3 when the human detection unit 23 detects the presence of a person in the detection area 14. The control unit 21 may periodically transmit an advertising packet from the lock side communication unit 22.

  The lock side control unit 21 causes an advertising packet to be periodically transmitted from the lock side communication unit 22. When the key-side communication unit 32 of the key device 3 existing in the communicable area 15 receives the advertising packet, the key-side communication unit 32 establishes a connection with the lock-side communication unit 22 of the electric lock device 2 and performs key-side communication. Wireless communication is started between the unit 32 and the lock side communication unit 22. When wireless communication is started between the key side communication unit 32 and the lock side communication unit 22, the authentication unit 211 of the lock side control unit 21 collates the key information received from the key device 3 with the authentication information. Thus, the key device 3 is authenticated. Thereafter, when the user 40 holding the key device 3 approaches the entrance 11 and enters the detection area 14, the person detection unit 23 detects the presence of a person. When the condition that the authentication of the key device 3 by the authentication unit 211 is successful and the condition that the human detection unit 23 detects the presence of a person in the detection area 14 are both established, the lock side control unit 21 drives the lock. A control signal is output to the unit 24 to unlock the lock device 4. As a result, when the person detection unit 23 detects the presence of a person in the detection area 14 and the authentication of the key device 3 is established by the authentication unit 211, the electric lock device 2 can unlock the key device 3. .

  Here, in the first modification, when the lock side control unit 21 of the electric lock device 2 periodically transmits the advertising packet from the lock side communication unit 22, whether or not the person detection unit 23 detects a person. Depending on the above, the above threshold value may be changed. For example, the lock side control unit 21 of the electric lock device 2 sets the threshold value to a lower value when the person detection unit 23 detects a person than when the person detection unit 23 does not detect a person. It may be set.

  When the person detection unit 23 does not detect a person, the lock-side control unit 21 sets the threshold value higher than when the person detection unit 23 detects a person. It becomes difficult to perform the authentication process with the key device 3 located at a distance away from the device 2.

  Moreover, the lock | rock control part 21 sets a threshold value to a low value compared with the case where the person detection part 23 has not detected the person, when the person detection part 23 has detected the person. Even when the reception strength of the received radio wave received from the key side communication unit 32 by the lock side communication unit 22 of the electric lock device 2 is reduced due to the state of the key device 3 (for example, the orientation of the key device 3), etc. There is a high possibility that the reception strength exceeds the threshold value. Therefore, it becomes easy to perform an authentication operation between the electric lock device 2 and the key device 3.

  In the above embodiment and Modifications 1 and 2, the lock side control unit 21 of the electric lock device 2 automatically performs the authentication process of the key device 3 when the human detection unit 23 detects the presence of a person in the detection area 14. However, the authentication process of the key device 3 may be performed when the operation unit 25 is operated.

  In the above-described embodiment and Modifications 1 and 2, the communication method between the electric lock device 2 and the key device 3 is not limited to Bluetooth (registered trademark), and may be wireless communication using other radio waves as a medium.

  In the above embodiment and Modifications 1 and 2, the building 10 to which the electric lock system 1 is applied is not limited to a detached house, but a house other than a detached house (for example, each dwelling unit of an apartment house) or an office It may be a non-residential such as a store, a nursing facility or the like.

(3) Summary As described above, the electric lock system (1) of the first aspect includes the key device (3), the lock side communication unit (22), the person detection unit (23), and the lock side control. Part (21). The key device (3) includes a key side communication unit (32) that performs wireless communication. The lock side communication unit (22) performs wireless communication with the key side communication unit (32). The person detection unit (23) detects the presence or absence of a person in the detection area (14) outside the entrance (11) of the building (10). The lock-side control unit (21) authenticates authentication information received by the lock-side communication unit (22) from the key-side communication unit (32) when the person detection unit (23) detects the presence of a person. When the authentication information is successfully authenticated, the doorway (11) is unlocked.

  According to the first aspect, the lock-side control unit (21) performs the authentication process of the key device (3) when the human detection unit (23) detects the presence of a person in the detection area (14). Even when the reception strength of the radio signal received from the key device (3) decreases, the authentication process can be reliably performed. In addition, since the lock control unit (21) does not perform the authentication process when the person detection unit (23) does not exist in the detection area (14), the person who owns the key device (3) detects the detection area (14). ), It is difficult to perform the authentication process. Therefore, in the state where the person who possesses the key device (3) is outside the detection area (14), the lock side control unit (21) succeeds in the authentication of the key device (3) and unlocks the doorway (11). A situation in which a person who does not have a key device enters the building 10 because it is locked can be avoided. Therefore, according to the first aspect, the reliability of the unlocking operation using the key device (3) can be improved.

  In the electric lock system (1) of the second mode, in the first mode, the lock side control unit (21) starts the authentication process when the human detection unit (23) detects the presence of a person, When the authentication of information is successful, the doorway (11) is unlocked.

  According to the second aspect, the lock-side control unit (21) starts the authentication process when the human detection unit (23) detects the presence of a person, so that the human detection unit (23) When the presence is not detected, the communication between the lock side communication unit (22) and the key side communication unit (32) can be reduced. Therefore, power consumption by the lock side communication unit (22) of the electric lock device (2) can be reduced. Moreover, by reducing the communication performed between the lock side communication unit (22) and the key side communication unit (32), radio waves can be transmitted to and from the electric lock device (2) of the other electric lock system (1). The possibility of occurrence of interference can be reduced.

  In the electric lock system (1) of the third aspect, in the first or second aspect, the lock-side control unit (21) performs the lock-side communication when the human detection unit (23) detects the presence of a person. When the reception intensity of the radio signal received by the unit (22) from the key side communication unit (32) exceeds a predetermined threshold value, an authentication process is performed.

  According to the third aspect, when the reception strength of the radio signal received by the lock side communication unit (22) from the key side communication unit (32) is equal to or lower than the predetermined threshold value, the authentication process is not performed. Here, if the threshold value is set to a value lower than the reception strength when the key device (3) is present in the detection area (14), the key device (3) is possessed in the detection area (14). In a state where there is a person who is not, it is difficult for the entrance / exit (11) to be unlocked due to successful authentication of the key device (3) existing outside the detection area (14).

  In the electric lock system (1) of the fourth aspect, in any one of the first to third aspects, the lock-side control unit (21) can set validity / invalidity of the detection result of the human detection unit (23). It is. When the detection result of the human detection unit (23) is set to be valid, the lock side control unit (21) performs an authentication process when the human detection unit (23) detects the presence of a person. When the lock control unit (21) sets the detection result of the human detection unit (23) to be invalid, the lock side control unit (21) does not perform the authentication process even if the human detection unit (23) detects the presence of a person.

  According to the fourth aspect, if the lock side control unit (21) sets the detection result of the human detection unit (23) to be invalid, the authentication is performed even if the human detection unit (23) detects the presence of a person. Processing is not performed. For example, if the detection result of the human detection unit (23) is set to be invalid for a certain time after locking with the key device (3), there is a third person who does not have the key device in the detection area (14). Thus, even if the authentication of the key device (3) is successful, the doorway (11) is not unlocked, so that a situation where a third person enters the building (10) can be avoided.

  In the electric lock system (1) of the fifth aspect, in any one of the first to fourth aspects, the notification unit (21) that notifies that the lock side control part (21) has failed to authenticate the key device (3). 26).

  According to the fifth aspect, the user can easily understand that the lock-side control unit (21) has failed to authenticate the key device (3) based on the notification operation by the notification unit (26).

  The electric lock device (2) of the sixth aspect is used in the electric lock system (1) of any one of the first to fifth aspects. The electric lock device (2) includes a lock side communication unit (22), a person detection unit (23), and a lock side control unit (21).

  According to the sixth aspect, the electric lock device (2) that can improve the reliability of the unlocking operation using the key device (3) can be realized.

DESCRIPTION OF SYMBOLS 1 Electric lock system 2 Electric lock device 3 Key device 4 Lock device 10 Building 11 Entrance / exit 14 Detection area 21 Lock side control part 22 Lock side communication part 23 Person detection part 26 Notification part 28 Measurement part 29 Case 31 Key side control part 32 Key Side communication unit 211 Authentication unit

Claims (6)

A key device having a key side communication unit for performing wireless communication;
A lock side communication unit for performing wireless communication with the key side communication unit;
A human detection unit that detects the presence or absence of a person in the detection area outside the entrance of the building;
When the person detecting unit detects the presence of a person, the lock side communication unit performs an authentication process for authenticating the key information received from the key side communication unit, and the gateway is used when the key information is successfully authenticated. A lock side control unit for unlocking,
Electric lock system. The lock side control unit starts the authentication process when the person detection unit detects the presence of a person, and unlocks the entrance when the key information is successfully authenticated.
The electric lock system according to claim 1. The lock-side control unit is configured such that when the person detection unit detects the presence of a person, the reception strength of the radio signal received by the lock-side communication unit from the key-side communication unit exceeds a predetermined threshold value. Performs the authentication process,
The electric lock system according to claim 1 or 2. The lock side control unit can set the validity / invalidity of the detection result of the human detection unit,
The lock side control unit performs the authentication process when the human detection unit detects the presence of a person when the detection result of the human detection unit is set to be valid,
The lock side control unit, when the detection result of the human detection unit is set to invalid, even if the human detection unit detects the presence of a person, does not perform the authentication process,
The electric lock system according to any one of claims 1 to 3. A notification unit for notifying that the lock-side control unit has failed to authenticate the key device;
The electric lock system according to any one of claims 1 to 4. An electric lock device used in the electric lock system according to any one of claims 1 to 5,
The lock side communication unit, the person detection unit, and the lock side control unit,
Electric lock device.

Images