JPH09303011A - Lock operation detecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unrighteous unlock with small power by confirming a set state and battery life by time communication between a plurality of sensor devices and an alarm control device, and generating an alarm and notifying the outside by instantaneous communication at the time of abnormality. SOLUTION: Regular radio signals sent in order from crescent locks 10 installed at a plurality of opening/closing parts and provided with sensor devices 1 are received by an alarm control device so as to confirm and control a set state and battery life. In the crescent lock 10 in the set state, a plunger 25 of a solenoid 24 is fitted into a recessed part 14a of a lever part 14 to impede unrighteous unlock. At this time, lock-unlock is confirmed by the position relation of a magnet 15 and a reed switch 18 embedded in the end part of the lever 14. When impact is applied by unrighteous unlock, abnormality is detected by voltage generated to a conductive film 17b of an impact sensor 17. The sensor device 1 detecting abnormality communicates in an instant, and the alarm control device operates a buzzer 22c to generate an alarm and notifies the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detection device, and more particularly, to a lock operation detection device which detects and warns when a lock device for an opening / closing part such as a window is illegally operated.

[0002]

2. Description of the Related Art For example, as disclosed in Japanese Patent Application Laid-Open No. 58-131275, there is known a door lock confirmation device capable of detecting an operating state of a lock device provided at an opening / closing portion and remotely confirming it by a wireless system. . This door lock confirmation device is a switch that operates in conjunction with the open / closed state of the clicent of the lock device for each door inside the room, and a radio that transmits the open / closed state of the crycent by assigning a channel to each door according to the output of the switch. The transmitter includes a transmitter and a receiver that receives the transmission signals from the transmitters in a lump and monitors and displays a lock state by opening and closing the crescent. In this confirmation device, a switch interlocking with the window's crescent operates a multi-channel radio transmitter that is arranged integrally with or adjacent to the crescent, and the receiver receives signals from each receiver and concentrates on the window. You can check the locked state of the door such as.

Japanese Unexamined Patent Publication No. 4-296998 discloses a wireless window opening / closing detection system capable of wirelessly and intensively detecting and displaying opening / closing of windows corresponding to locking or unlocking of a plurality of windows. This wireless window opening / closing detection system includes a signal generation unit that generates a plurality of signals of different frequencies and sequentially transmits the signals at a predetermined cycle, a loop antenna that transmits and receives the signals, and a plurality of window frames. A plurality of return means provided with a resonator having a large Q, which is arranged to generate a reflection signal corresponding to a transmission signal from the signal generation means at a unique frequency set for each window by locking each window The lock detection display means for detecting the return signal from the device and displaying the position of the window transmitted by the frequency of the reflected signal, and the signal generation means and the lock detection display means for each frequency in accordance with a predetermined cycle to switch the loop. A changeover switch is provided, which is connected to the antenna and alternately forms a transmitting circuit and a receiving circuit. This wireless window opening / closing detection system provides an unlocking detection display when the window is unlocked.

[0004]

In the conventional wireless window opening / closing detection system, since the crescent lock is used as the lock device, the lever of the crescent lock can be rotated if a part of the door opening such as glass is destroyed. The crescent lock can be unlocked, and after unlocking, the window can be opened for easy entry. For this reason, it is desirable to detect unauthorized opening of the door opening portion by the wireless window opening / closing detection system and prevent unauthorized unlocking of the crescent lock.

Therefore, the present invention can prevent unauthorized unlocking of the crescent lock, and can detect the lock operation by periodically and automatically communicating by remote control for information transmission between the alarm control device and the sensor device. The purpose is to provide a device.

[0006]

A lock operation detecting device according to the present invention comprises a lock device (10) and a lock device (10).
A sensor device (1) having a lock communication device (11) that generates a wireless signal when the device is unlocked, and an alarm control device that generates an alarm signal when the wireless signal generated by the sensor device (1) is received. (2) and are provided. The locking device (10) is rotatably supported by a hook portion (13) and a hook portion (1
3) A crescent lock (9) having a lever part (14) that rotates together with the crescent lock (9), and a locking part (14a) formed on the lever part (14) of the crescent lock (9). A solenoid (24) having a plunger (25). The lock communication device (11) of the sensor device (1) includes a battery (16), a transmission / reception control circuit (28) connected to the lock device (10), and an alarm control device connected to the transmission / reception control circuit (28). A transmission / reception drive circuit (19) for transmitting / receiving a radio signal to / from (2). The alarm control device (2) includes a transmission / reception drive circuit (36) for transmitting / receiving a radio signal to / from the sensor device (1), and a transmission / reception control circuit (37) connected to the transmission / reception drive circuit (36). . The alarm control device (2) sends a wireless signal including a set signal and a reset signal to the sensor device (1). When the alarm control device (2) generates a wireless signal including a set signal, the sensor device (1) operates the solenoid (24) in one direction to move the plunger (25) to the locking portion (9) of the crescent lock (9). 14a). When the alarm control device (2) generates a wireless signal including a reset signal, the sensor device (1) causes the solenoid (2
4) is operated in the other direction to separate the plunger (25) from the locking portion (14a) of the crescent lock (9).

In the embodiment of the present invention, the transmission / reception control circuit (28) of the sensor device (1) transmits a wireless signal to the alarm control device (2) when receiving the wireless signal from the alarm control device (2). At the same time, the communication timer means enters the reception state for regular communication after a fixed time. The transmission / reception control circuit (28) of the sensor device (1) has a capacity detecting means (29) for measuring the remaining capacity of the battery (16), and the battery information from the capacity detecting means (29) is received for a certain period of time. Sometimes it is sent to the alarm controller (2).

Further, in the embodiment of the present invention, a plurality of sensor devices (1) having a lock communication device (11) for generating a wireless signal when the lock device (10) is unlocked, and a plurality of sensors. An alarm control device (2) for generating an alarm signal when receiving a radio signal generated by each of the devices (1). The sensor device (1) sends a wireless signal to the alarm control device (2) when the lock device (10) is unlocked. The lock communication device (11) of the sensor device (1) includes a transmission / reception control circuit (28) connected to the lock device (10) and an alarm control device (2) connected to the transmission / reception control circuit (28).
Transmission / reception drive circuit for transmitting / receiving radio signals to / from (19)
And Alarm control device (2) is sensor device (1)
Transmission / reception drive circuit for transmitting / receiving radio signals to / from (36)
And a transmission / reception control circuit (37) connected to the transmission / reception drive circuit (36). The transmission / reception control circuit (28) of each sensor device (1) receives the information from the battery (16), the capacity detecting means (29) for measuring the remaining capacity of the battery (16), and the capacity detecting means (29). And a communication timer means for generating a command signal to be transmitted to the alarm control device (2) when a predetermined time has elapsed. When the transmission / reception control circuit (28) of the sensor device (1) receives the wireless signal from the alarm control device (2), it transmits the wireless signal to the alarm control device (2), and after a certain period of time by the communication timer means. Received due to regular communication. The alarm control device (2) sends a wireless signal including a set signal and a reset signal to the sensor device (1) in the receiving state by the communication timer means. When the alarm control device (2) generates a wireless signal including a set signal, the sensor device (1) operates the solenoid (24) in one direction to move the plunger (25) to the locking portion (9) of the crescent lock (9). 14a). When the alarm control device (2) generates a wireless signal including a reset signal, the sensor device (1)
Operates the solenoid (24) in the other direction to separate the plunger (25) from the locking portion (14a) of the crescent lock (9).

The alarm control device (2) includes a transmission / reception control circuit (3
7) is provided with a manual set / reset button (32), and the transmission / reception control circuit (37) has a sensor device (1) through the transmission / reception drive circuit (36) when the manual set / reset button (32) is operated. Send a set signal to. The sensor device (1) is switched to the set state when receiving the set signal from the alarm control device (2), and operates the communication timer means. The transmission / reception control circuit (37) sends a reset signal to the sensor device (1) through the transmission / reception drive circuit (36) when the manual set / reset button (32) is operated again. Sensor device (1) is alarm control device (2)
When the reset signal is received from the switch, the switch is switched to the reset state and the communication timer means is activated.

The sensor device (1) comprises a plurality of sensor devices (1) communicating with the alarm control device (2), and each sensor device (1) is provided with a time difference timer means for counting a unique time. When the lock device (10) is switched from the closed state to the open state, the transmission / reception control circuit (2) of the sensor device (1)
8) is an alarm control device (2) through a transmission / reception drive circuit (19)
Send the code signal to. The transmission / reception control circuit (28) transmits the code signal and then, when the specific time counted by the time difference timer means elapses, at a different timing with a time difference with respect to the code signal transmitted from the other sensor device (1). , Send the code signal again to the alarm controller (2). The sensor device (1) is composed of a plurality of sensor devices (1), and the alarm control device (2) receives a wireless signal from each sensor device (1) and locks each sensor device (1) (1).
The change from 0) to the closed state or the change from the closed state to the open state of 0) is displayed. The sensor device (1) includes an open sensor element (18) that detects switching of the lock device (10) from a closed state to an open state, and an impact sensor (17) that detects an impact applied to the lock device (10). When the transmission / reception control circuit (28) receives the detection signal from the open sensor element (18) or the impact sensor (17), the transmission / reception drive circuit (19) sends the detection signal together with the code signal to the alarm control device (2). Send. The transmission / reception control circuit (37) of the alarm control device (2) generates an alarm signal when receiving the detection signal from the sensor device (1). Transmission / reception control circuit (28)
When the detection signal from the open sensor element (18) or the impact sensor (17) is received, the transmission signal is transmitted to the alarm control device (2) through the transmission / reception drive circuit (19) together with the code signal, and then the time difference timer is used. When the specific time counted by the means has elapsed, the detection signal is sent again to the alarm control device (2) together with the code signal at a different timing with a time difference with respect to the code signal sent from the other sensor device (1). To do. The sensor device (1) is composed of a plurality of sensor devices (1), and the alarm control device (2) is the first sensor device (1) during the initial communication between each sensor device (1) and the alarm control device (2). To the next sensor device (1) after receiving the information from the sensor device (1) by transmitting a wireless signal to the next sensor device (1) after a certain period of time. To do. The alarm control device (2) repeats transmission and reception with respect to each sensor device (1) at a constant time interval by a radio signal of the same frequency, and finally ends transmission and reception with respect to a predetermined number of sensor devices (1). During the initial communication between each sensor device (1) and the alarm control device (2), the transmission / reception control circuit (28) transmits / receives when a detection signal from the open sensor element (18) or the impact sensor (17) is received. A detection signal together with a code signal is transmitted to the alarm control device (2) through the drive circuit (19). The transmission / reception control circuit (37) of the alarm control device (2) generates an alarm signal when receiving the detection signal from the sensor device (1). Each sensor device (1) switches between the open state and the closed state of the lock device (10) and sets the lock device (10) to send a detection signal of the impact sensor (17) to the alarm control device (2). ) Is switched to a non-set state in which only the switching between the open state and the closed state is transmitted to the alarm control device (2). In the non-set state, the detection signal of the impact sensor (17) is sent to the alarm control device (2). Do not send to.

By operating a manual set / reset button (32) of the alarm control device (2), a plurality of sensor devices (1) are sequentially operated by radio signals of the same frequency with a time difference by remote operation from the alarm control device (2). It is possible to switch to the set state or the reset state. The alarm control device (2) sends a wireless signal including a set signal and a reset signal to the sensor device (1) in the receiving state by the communication timer means. When the alarm control device (2) generates a wireless signal including a set signal, the sensor device (1) causes the solenoid (2)
4) is operated in one direction to move the plunger (25) to the locking part (14a) formed on the lever part (14) of the crescent lock (9).
To be engaged. When the alarm control device (2) generates a wireless signal including a reset signal, the sensor device (1) operates the solenoid (24) in the other direction to move the plunger (25) to the lever portion (14) of the crescent lock (9). ) Is separated from the locking portion (14a) formed on the. In this way, in the set state, the plunger (25) of the solenoid (24) is engaged with the locking portion (14a) of the lever portion (14), which prevents the unlocking of the crescent lock (9). can do.

During operation of the sensor device (1), the transmission / reception control circuit (28) of the sensor device (1) opens the open sensor element (1).
8) Or, when the detection signal from the impact sensor (17) is received, the detection signal together with the code signal is transmitted to the alarm control device (2) through the transmission / reception drive circuit (19), and the transmission / reception control of the alarm control device (2) is performed. The circuit (37) generates an alarm signal when it receives a detection signal from the sensor device (1), so that the alarm control device (2) can centrally manage the sensor device (1). At that time, since a command signal to be transmitted to the alarm control device (2) is generated after a lapse of a certain time, the current consumption in the sensor device (1) is extremely small in a normal monitoring state. In addition, since each sensor device (1) sends a code signal to the alarm control device (2), if the alarm control device (2) is managed, it is possible to quickly determine which sensor device (1) has changed its state. Can be recognized.

When the transmission / reception control circuit (28) receives the detection signal from the open sensor element (18) or the impact sensor (17), the transmission / reception drive circuit (19) detects the detection signal together with the code signal in the alarm control device (2). Send a signal, then
When the specific time counted by the time difference timer means has passed, the alarm control device (2) again detects the detection signal together with the code signal at a different timing with a time difference with respect to the code signal transmitted from the other sensor device (1). Therefore, even if a plurality of sensor devices (1) start communicating with the alarm control device (2) at the same time, the time difference timer means transmits after the lapse of the specific time. Therefore, the transmission can be surely ended.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a lock operation detecting device according to the present invention will be described below with reference to FIGS.

As shown in FIG. 1, this lock operation detecting device comprises a plurality of sensor devices 1 and an alarm control device 2 which receives a radio signal from the sensor device 1. As shown in FIG. 2, each sensor device 1 is fixed in the building adjacent to an opening / closing part such as a window or a door, and the alarm control device 2 communicates with the sensor device 1 by a wireless signal. As shown in FIG. 3, the sensor device 1 is a crescent lock 1 as a locking device.
0 and a lock communication device 11 arranged adjacent to the crescent lock 10. The crescent lock 10 has a hook portion 13 that rotates about a central axis 12 and a lever portion 14 that rotates integrally with the hook portion 13. The lock communication device 11 includes a battery 16 supported by a printed circuit board 22,
The film-shaped impact sensor 17 supported by the sensor mounting substrate 22a of the printed circuit board 22 and the reed switch 1 as the open sensor element mounted on the printed circuit board 22.
8, a transmission / reception drive circuit 19 mounted on a printed circuit board 22 as an RF (radio frequency) module, an antenna 20, a light emitting diode 22b, a buzzer 22c,
A solenoid 24 having a plunger 25 and a resin case 21 are provided. The case 21 includes the battery 16, the shock sensor 17, the reed switch 18, and the transmission / reception drive circuit 1.
9 and the antenna 20 are enclosed. As shown in FIG. 3, the impact sensor 17 has an electrode 17a and a conductive film 17b arranged at a constant distance from the electrode 17a. The film 17b is a Kynar (trade name) piezoelectric film that generates a voltage when vibration or shock is applied. Lever portion 14 of the crescent lock 10
When is rotated to the locking position, the magnet 15 embedded in the end of the lever portion 14 moves to a position facing the reed switch 18, the reed switch 18 is turned on, and the locking of the crescent lock 10 can be detected. it can. Conversely, when the lever portion 14 is rotated to the unlocked position shown in FIG.
5 is separated from the reed switch 18, and the reed switch 1
8 is turned off, and the unlocking of the crescent lock 10 can be detected. Further, when an impact is applied to the crescent lock 10, the film 17b generates a voltage and the impact can be detected. The lever portion 14 is provided with a recess 14a as a locking portion into which the plunger 25 of the solenoid 24 can be fitted.

As shown in FIG. 4, the battery 16, the impact sensor 17, the reed switch 18, the set switch 27, the buzzer 22c and the light emitting diode 22b are included in the transmission / reception control circuit 2.
8 is connected. Further, a setting switch 23 for giving a unique code signal of the sensor device 1 and a life detecting circuit (capacity detecting means) 29 for measuring the remaining capacity of the battery 16 are connected to the transmission / reception control circuit 28. The setting switch 23 is composed of a small switch such as a DIP switch and gives a necessary digit number to the code signal. The transmission / reception control circuit 28 is connected to the transmission / reception drive circuit 19 having the antenna 20. Further, the buzzer 22c and the light emitting diode 22b attached to the printed circuit board 22 are activated when a radio signal is generated from the transmission / reception drive circuit 19, and give an auditory signal or a visual signal. Although not shown, the transmission / reception control circuit 28 is provided with a communication timer means which is activated when the set switch 27 is turned on and which counts a fixed time (for example, 10 minutes) and a time difference timer means which counts a specific time. The output of the reed switch 18 and the impact sensor 17 is the transmission / reception control circuit 2
8 and is transmitted to the alarm control device 2 through the transmission / reception drive circuit 19 and the antenna 20 of the transmission / reception drive circuit 19 by a radio signal including a code signal representing the sensor device 1.

As shown in FIGS. 5 and 6, the alarm control device 2 includes a light emitting element 30 such as an LED provided corresponding to a plurality of sensor devices 1 mounted corresponding to an opening / closing part, and a manual setting / setting. It has a reset button 32, an alarm 34, and an antenna 35. As shown in FIG. 7, the alarm control device 2 includes a transmission / reception drive circuit 36 including an antenna 35 as an RF module, and a transmission / reception control circuit 37 connected to the transmission / reception drive circuit 36. Transmission / reception control circuit 3
7 is a light emitting element 30 and a manual set / reset button 32
, Alarm 34, and external reporting means 38 such as a telephone line.

There are two types of communication between the sensor device 1 and the alarm control device 2, namely regular communication and instantaneous communication. In the regular communication, information is periodically transmitted from the sensor device 1 to the alarm control device 2 by a wireless signal from the alarm control device 2 (for example, every 10 minutes). In the instant communication, the crescent lock 10 of the sensor device 1 is locked or unlocked and the impact sensor 1 is used.
The operating state of 7 is instantly transmitted to the alarm control device 2.

In the regular communication, first, the alarm control device 2 sends a wireless signal to the sensor device 1. The radio signal from the alarm control device 2 includes a set command signal for setting the communication timer means of each sensor device 1 to, for example, 10 minutes, and a mode switching command signal for switching the setting or resetting of the warning mode. Next, when the sensor device 1 receives the wireless signal from the alarm control device 2, the sensor device 1 determines whether the set signal or the reset signal is received, and the sensor device detects itself when the set signal is received. It switches to the set state and switches itself to the reset state when it receives the reset signal. Subsequently, the sensor device 1 detects the life of the battery 16 by the output of the life detection circuit 29, and the transmission / reception control circuit 2
8 and the transmission / reception drive circuit 19, the battery life is transmitted to the alarm control device 2, and at the same time, the sensor device 1 sets the communication timer means to, for example, 10 minutes. The alarm control device 2 receives the wireless signal of the life information of the battery 16 of the sensor device 1 in synchronization with the transmission of the sensor device 1. After 10 minutes, the sensor device 1 is automatically switched to the receiving state by its communication timer means, receives the wireless signal from the alarm control device 2, and receives the set signal or resets as described above. When the sensor device receives the set signal, the sensor device switches itself to the set state, and when the sensor device receives the reset signal, switches to the reset state. Further, subsequently, the sensor device 1 detects the life of the battery 16 by the output of the life detecting circuit 29, transmits the battery life to the alarm control device 2 through the transmission / reception control circuit 28 and the transmission / reception drive circuit 19, and at the same time, the sensor device 1 The communication timer means is set to 10 minutes again. The alarm control device 2 synchronizes with the transmission of the sensor device 1
The wireless signal of the life information of the battery 16 is received. The sensor device 1 and the alarm control device 2 repeat the above communication every 10 minutes. When the alarm control device 2 communicates with the plurality of sensor devices 1, for example, the alarm control device 2 has two
Each sensor device 1 communicates with the alarm control device 2 every 10 minutes, although communication is performed sequentially at 0 second intervals. Since communication is performed at intervals of 10 minutes in this way, the power consumption of each sensor device 1 can be reduced, and at the same time, the alarm control device 2 can receive information from each sensor device 1 every 10 minutes.

In the above structure, the sensor device 1 is operated according to the operation sequence shown in FIGS.

Proceeding from step 40 to step 41, the transmission / reception control circuit 28 of the sensor device 1 judges whether or not it is a regular communication. If it is a regular communication, the process proceeds to step 42. If it is not a regular communication, the process proceeds to step 49. When it is determined in step 41 that the regular communication is performed, it is determined in step 42 whether the manual set / reset button 32 of the alarm control device 2 is turned on and the set signal is received. When the set signal is received in step 42, the set state is set in step 45, and the transmission / reception control circuit 28 is set in step 47.
A drive signal is applied to the solenoid 24 from. Therefore, the plunger 25 is fitted into the locking portion 14a of the lever portion 14, and the process proceeds to step 46. If the set signal is not received in step 42, it proceeds to step 43 and it is judged whether or not the reset signal is received. When the reset signal is received in step 43, after the reset state is set in step 44, the transmission / reception control circuit 28 operates the solenoid 24 in the reverse direction in step 46 to release the engagement of the plunger 25 with the locking portion 14a. Then, the process proceeds to step 48. If no reset signal is received in step 43, the process proceeds to step 48. In step 48, the life of the battery 16 is detected by the output of the life detecting circuit 29, and in step 49, the transmission / reception control circuit 28 transmits the battery life to the alarm controller 2 through the transmission / reception drive circuit 19.
Subsequently, in step 50, the transmission / reception control circuit 28 of the sensor device 1 activates, for example, a 10-minute timer by the communication timer means. In step 51, the reed switch 18 as the open sensor element is switched from on to off, and it is determined whether or not the crescent lock 10 is switched from the closed state to the open state.

In step 51, when the crescent lock 10 is switched from the closed state to the open state (the lead switch 18 is off), the process proceeds to step 52 in FIG. Since the code signal of the sensor device 1 is predetermined by the setting switch 23, the transmission / reception control circuit 28 reads the code signal from the setting switch 23 in step 52, and the transmission / reception control circuit 28 transmits / receives a radio signal including the code signal. And it transmits to the alarm control apparatus 2 through the antenna 20 (step 53). Next, the transmission / reception control circuit 28 of the sensor device 1 activates the time difference timer means in step 54, and transmits the second time to the alarm control device 2 in step 55. Thereafter, in step 56, it is determined whether or not the set state is set. When it is not set state, the intermittent display of the light emitting diode 22b is stopped in step 57, and the process returns to step 51. In step 45, the state is switched to the set state. In step 56, when the set state is set, the buzzer 22c is activated in step 58, and then the state is switched to the reception state (step 59), and it is determined in step 60 whether a reset signal is received. . Step 6
When the reset signal is received at 0, the process proceeds to step 62, and the solenoid 24 is unlocked. If the reset signal is not received in step 60, it is determined in step 61 whether the buzzer timer which operated the buzzer 22c operated in step 54 has passed a predetermined time. Step 61
If the predetermined time does not elapse after the operation of the buzzer 22c in step 58, the process returns to step 58, and if the predetermined time elapses, the process proceeds to step 62, the solenoid 24 is operated to unlock, and the operation of the buzzer 22c is stopped in step 63. Return to 51.

If the crescent lock 10 is not switched from the closed state to the open state in step 51, the process proceeds to step 64 (FIG. 10), and it is determined whether or not the crescent lock 10 is switched from the open state to the closed state (reed switch 18 ON). To determine. If the crescent lock 10 is not switched from the open state to the closed state in step 64, it is determined in step 65 whether the impact sensor 17 is turned on. When the impact sensor 17 is turned on in step 65, it is determined in step 66 whether or not it is in the set state. In the set state, the transmission / reception control circuit 28 reads the code signal from the setting switch 23 (step 6
7), the transmission / reception control circuit 28 transmits the radio signal including the code signal to the alarm control device 2 through the transmission / reception drive circuit 19 and the antenna 20 (step 68).

Next, at step 69, the time difference timer means in the transmission / reception control circuit 28 is activated, and at step 70, the second transmission is performed with a time difference peculiar to the alarm control device 2. Then, in step 71, the buzzer 22c
And then switch to the reception state (step 72),
In step 73, it is determined whether a reset signal has been received. When the reset signal is received in step 73, the process proceeds to step 75, and when the reset signal is not received, it is determined in step 74 whether the buzzer timer after the operation of the buzzer 22c has elapsed a predetermined time. If the predetermined time has not elapsed in step 74, the process returns to step 71, and if the predetermined time has elapsed, the process proceeds to step 75 to stop the operation of the buzzer 22c, and then in step 76 the solenoid 24
Is unlocked, and in step 77, the light emitting diode 22b is released.
The intermittent operation is performed and the process returns to step 51. Step 65
When the impact sensor 17 is not turned on in step 66 or when it is not in the set state in step 66, the process returns to step 51.

When the crescent lock 10 is changed from the open state to the closed state in step 64, the process proceeds to step 78, the transmission / reception control circuit 28 reads the code signal from the setting switch 23, and the transmission / reception control circuit 28 transmits the radio signal including the code signal. Is transmitted to the alarm control device 2 through the transmission / reception drive circuit 19 and the antenna 20 (step 79). Next, in step 80, the time difference timer means is activated, and in step 81, the alarm control device 2 is transmitted for the second time. Subsequently, in step 82, it is determined whether or not the set state is set. When the set state is set, the process returns to step 51. When the set state is not set, the intermittent operation of the light emitting diode 22b is stopped in step 83, and then the process returns to step 51.

Next, the transmission / reception control circuit 3 of the alarm control device 2
The operation of No. 7 will be described with reference to the operation sequence shown in FIGS.

In FIG. 11, the routine proceeds from step 90 to step 91, where the transmission / reception control circuit 28 of the sensor device 1 determines whether or not the manual set / reset button 32 has been pressed to switch to the set state. When the manual set / reset button 32 is turned on, the set state is set, and the manual set / reset is performed again.
When the reset button 32 is turned on, the reset state is set.
In the set state, the routine proceeds to step 92, where it is judged whether all the crescent locks 10 are closed. If all the crescent locks 10 are closed, the light emitting element 30 is turned on in step 93 to display the set, and step 94
In the set state. When all the crescent locks 10 are not closed in step 92, the process returns to step 91. Next, in step 95, it is judged whether or not the communication with all 30 sensor devices 1 is completed. When the communication with all 30 sensor devices 1 is completed, the process proceeds to step 99, in which the number of communicated sensor devices 1 is counted. When is less than 30, the routine proceeds to step 96, where a set signal is transmitted to the next sensor device 1.

In step 96, it is judged whether or not the information is transmitted to the Nth sensor device 1 out of the 30 sensor devices 1 and the information is received in step 97. When the information is not received in step 97, the process returns to step 96, and when the information is received, the sensor device 1 communicates with the next sensor device 1 at N + 1 in step 98, and the process proceeds to step 101. When communication with all 30 sensor devices 1 is completed in step 95 and the process proceeds to step 99, the timing of regular communication with each sensor device 1 and a set signal are transmitted.
Next, in step 100, it is determined whether or not the battery life information is received from each sensor device 1. When the battery life information is received, the process proceeds to step 101. When the battery life information is not received, the battery life information is received in step 100. The receiving operation is repeated until. In step 101, it is determined whether the signal from the impact sensor 17 is received or the crescent lock 10 is opened. When the signal from the impact sensor 17 is not received and the crescent lock 10 is not released, the process returns from step 101 to step 91, and thus steps 91 to 98 and steps 91 to 98 are performed until the communication with all the 30 sensor devices 1 is completed. The process including 101 is repeated. When communication with all 30 sensor devices 1 is completed, steps 96 to 98 are performed.
Steps 91-95 and 99-1 without performing the process
The operation of 01 is repeated.

After that, when the signal from the impact sensor 17 is received or the signal that the crescent lock 10 is opened is received in step 101, the transmission / reception control circuit 37 activates the alarm 34 in step 102. Step 1
After activating alarm 34 at 02, step 10
In 3, the external notification means 38 is activated. Thereafter, in step 104, the transmission / reception control circuit 37 manually sets /
When it is determined whether the reset button 32 is operated and the manual set / reset button 32 is operated, step 1
At 07, a reset signal is transmitted to the sensor device 1 and the routine proceeds to step 106, where the alarm 34 is activated and the external notification means 3
After the operation of 8 is stopped, the process returns to step 91. If the manual set / reset button 32 is not operated in step 104, it is determined in step 105 whether a predetermined time has passed, and if the predetermined time has passed, step 106
If the predetermined time has not elapsed, the process returns to step 104.

If it is not in the set state in step 91, the process proceeds to step 108, it is judged whether or not the crescent lock 10 is switched from the open state to the closed state, and if it is closed, the closing of the crescent lock 10 is displayed in step 114. Then, the process returns to step 91. Step 10
If the crescent lock 10 is not closed at 8, the process proceeds to step 109 and it is determined whether the crescent lock 10 is opened. When the crescent lock 10 is released in step 109, the crescent lock 1 is released in step 115.
After displaying the opening of 0, the process proceeds to step 91. If the crescent lock 10 is not operated from closing to releasing in step 109, the process proceeds to step 110, it is determined whether or not it is in the reset state, the process proceeds to step 111 if it is in the reset state, and the process returns to step 91 if it is not in the reset state. In step 111, the reset state is displayed by the light emitting element 30, and then in step 112, the timing of regular communication with the sensor device 1 and the set signal are transmitted. continue,
In step 113, the battery life information is received from each sensor device 1, and the process returns to step 91.

During the operation of the lock operation detecting device, as described above, when the manual set / reset button 32 is turned on, the set state is set, and the manual set / reset button 3 is turned on again.
When 2 is turned on, the state is reset. When the manual set / reset button 32 is first turned on, the alarm control device 2 is set, and in step 92 it is determined whether all the crescent locks 10 are closed. When the reed switch 18 of the sensor device 1 is turned on, the light emitting element 30 is turned on in step 93, and the set state is displayed. Therefore, the operator can recognize that all the crescent locks 10 are closed by turning on the light emitting elements 30.

Communication is performed between the alarm control device 2 and each sensor device 1, and communication settings are made for each of the 30 sensor devices 1 with a time difference. That is, when the set switch 27 is turned on during the regular communication of one sensor device 1, the process proceeds from step 41 to 42 in FIG. 8 and the alarm control device 2 transmits the set signal 130 shown in FIG. The transmission / reception control circuit 28 of No. 1 determines whether or not the set signal is received from the alarm control device 2. As shown in FIG. 12, the alarm control device 2 generates a set signal at intervals of 20 seconds (step 96). As shown in FIG. 12, when the sensor device 1 receives the set signal 130 from the alarm control device 2, the set state is set in step 45, the battery life is read (step 48), and as shown by the signal 131 in FIG. After sending the alarm control device 2 to inform the battery life (step 48), a 10-minute timer is started (step 50). When the sensor device 1 transmits the battery life information to the alarm control device 2 in step 49, the alarm control device 2 receives the battery life information from the first sensor device 1 (that is, Nth) in step 97. To determine. If the battery life information is received from the sensor device 1, the alarm control device 2 proceeds to step 98, but if the radio wave does not reach and the battery life information is not received, the alarm control device 2 proceeds to step 9
Repeat 6 and 97. In step 98, the alarm control device 2 performs N + 1 calculation in order to communicate with the next sensor device 1. Here, the impact sensor 17 of each sensor device 1 may detect vibration and be turned on or the reed switch 18 may be turned off before communication with all the sensor devices 1 is completed. Therefore, the alarm control device 2 determines in step 101 whether or not any of the sensor devices 1 is in the alarm state. When any of the sensor devices 1 is in the alarm state, the process proceeds to step 102, the alarm 34 is activated, and the step At 103, the external notification means 38 is activated. Thereafter, in step 104, the transmission / reception control circuit 37 determines whether or not the manual set / reset button 32 is operated. When the manual set / reset button 32 is operated, a reset signal is transmitted to the sensor device 1 in step 107. After proceeding to step 106 and stopping the operation of the alarm 34 and the operation of the external notification means 38, step 9
Return to 1. If the manual set / reset button 32 is not operated in step 104, it is determined in step 105 whether or not a predetermined time has elapsed. If the predetermined time has elapsed, the process proceeds to step 106, and if the predetermined time has not elapsed, the process returns to step 104. Correspondingly, each sensor device 1 repeats steps 40-50, 51, 64 and 65. Each sensor device 1 performs regular communication with the alarm control device 2 every 10 minutes regardless of the set state and the reset state.

When the impact sensor 17 is turned on or the reed switch 18 is turned off, the sensor device 1 reads the code signal from the setting switch 23, and steps 68 or 7 are executed.
At 0, a detection signal is transmitted to the alarm control device 2. Therefore, the alarm control device 2 receives the detection signal from the sensor device 1 in step 101. Then step 1
In 02 and 103, after the alarm 34 is activated and the external reporting means 38 is activated, the alarm manual stop button 31 is activated.
Judge whether or not is activated. When the alarm manual stop button 31 is operated, a reset signal is transmitted to the sensor device 1 in step 107, the alarm 34 is stopped in step 106, and the operation of the external notification means 38 is stopped. If the manual set / reset button 32 is not actuated in step 104, it is determined in step 105 after the alarm 34 is actuated whether a predetermined time has elapsed. If a fixed time has elapsed after the alarm 34 was activated, the process proceeds to step 106, and if the fixed time has not elapsed, the process returns to step 104. When the sensor device 1 is operated by an unauthorized intruder, the impact sensor 17 or the reed switch 18 is operated, and steps 101 to 106 are operated.

In step 91, when it is in the reset state, the process proceeds to step 108, it is judged whether or not the crescent lock 10 is switched from the open state to the closed state, and when the crescent lock 10 is switched to the closed state, the closing of the crescent lock 10 is displayed ( Step 114). When the crescent lock 10 is not switched from the open state to the closed state in step 108, the process proceeds to step 109, and it is determined whether the crescent lock 10 is switched from the closed state to the open state. When the crescent lock 10 is switched from the closed state to the open state in step 109, the open state of the crescent lock 10 is displayed in step 115. If the open state is not switched, it is determined in step 110 whether the crescent lock 10 is in the reset state. When the manual set / reset button 32 of the alarm control device 2 is pressed in step 104, the sensor device 1 is switched to the reset state. If the reset state is set in step 110, the reset state is displayed in step 111, and the sensor device 1 is displayed in step 112.
The timing of the regular communication with and the set signal are transmitted, the battery life information is received from each sensor device 1 in step 113, and the process returns to step 91. When there is no change in the alarm control device 2 in the non-set state, steps 91, 108-
Cycle 110 operations.

When the crescent lock 10 is opened without generating an impact, the crescent lock 10 is changed from the closed state to the open state in step 109, and therefore steps 52 to 55 are performed.
And contact the alarm control device 2 (step 9
After 7), proceed to step 56. The reason why the alarm control device 2 is contacted twice in steps 53 and 55 is that the alarm control device 2 is surely contacted by giving a time difference at the time interval set by the unique time difference timer means of the sensor device 1.
If it is set in step 56, step 58
After performing the operations of to 63, the process returns to step 51. If it is not set in step 56, the intermittent operation of the light emitting diode is stopped in step 57, and then step 5
Return to 1.

When a shock is applied to the shock sensor 17,
The process proceeds from step 65 to 66, and when not set, the process returns to step 41. When the set state is set in step 66, the operations of steps 67 to 70 are performed, and step 71
After actuating the buzzer 22c in (1), it is switched to a reception state in which a signal from the alarm control device 2 can be received (step 72). This is because when the manual set / reset button 32 of the alarm control device 2 is pressed, the sensor device 1 receives a reset signal from the alarm control device 2 and outputs the buzzer 22.
This is because the operation of c is stopped and the intermittent operation of the light emitting diode 22b is performed. In step 66, since the alarm control device 2 is not transmitted in the non-set state,
The power consumption of the battery can be reduced.

In step 64, the crescent lock 10
Step 6 when switching from open to closed
From 7 to 78, communication with the alarm control device 2 is performed. If the set state is set in step 82, the process returns to step 41. If the set state is not set, the intermittent operation of the light emitting diode 22b is stopped in step 83, and then step 4 is performed.
Return to 1. In this way, when the crescent lock 10 is switched from the closed state to the open state, the operations of steps 52 to 56 are performed, but when the crescent lock 10 is switched from the open state to the closed state, the operations of steps 78 to 82 are performed. Together with step 114 or 115, the crescent tablet 10
The closed or open state of is displayed.

Therefore, since the light emitting element 30 operates regardless of the set state and the reset state, the state of the crescent lock 10 can be constantly monitored. If the detection signal is sent from the sensor device 1 before the alarm control device 2 reaches steps 91 to 101, the operation of the sensor device 1 is detected in step 101, and the alarm 34 is activated in step 102. The alarm can be issued before the initial communication between the sensor device 1 and the alarm control device 2 is completed.

As described above, the state of the sensor device is transmitted to the alarm control device 2 separately from the regular communication. In the present embodiment, when the sensor device 1 operates, the transmission / reception control circuit 28 of the sensor device 1 causes the open sensor element 18 or the impact sensor 17 to operate.
When the detection signal from the
The alarm control device 2 transmits the detection signal together with the code signal, and the transmission / reception control circuit 37 of the alarm control device 2 generates the alarm signal when the detection signal from the sensor device 1 is received. Centralized management of 1 can be performed. Further, since the transmission / reception control circuit 28 of each sensor device 1 is brought into the receiving state with respect to the alarm control device 2 by the communication timer means by the regular communication after a certain period of time, the current consumption in the sensor device 1 is extremely high in the normal monitoring state. small. Further, when the remaining capacity of the battery 16 of the sensor device 1 is reduced, the sensor device 1 may be used during regular communication.
From the wireless signal transmitted from the alarm control device 2 to the alarm control device 2, it is possible to confirm the decrease in the remaining capacity of the battery 16 by centralized management in the alarm control device 2. Further, by operating the manual setting / resetting button 32 of the alarm control device 2, the plurality of sensor devices 1 can be sequentially switched to the set state by a radio signal of the same frequency with a time difference by a remote operation from the alarm control device 2. Since each sensor device 1 transmits a code signal to the alarm control device 2, if the alarm control device 2 is managed, it is possible to quickly recognize which sensor device 1 has changed its state.

The transmission / reception control circuit 28 includes the open sensor element 18
Or when the detection signal from the impact sensor 17 is received,
The detection signal is transmitted to the alarm control device 2 through the transmission / reception drive circuit 19 together with the code signal, and then, when the specific time counted by the time difference timer means has elapsed, with respect to the code signal transmitted from another sensor device 1. Since the detection signal together with the code signal is transmitted again to the alarm control device 2 at different timings with a time difference, a plurality of sensor devices 1
Even if they start communicating with the alarm control device 2 at the same time, the time difference timer means performs transmission after the elapse of a specific time.
It is possible to reliably end the transmission to the alarm control device 2.

[0041]

In the lock operation detecting device according to the first, fourth, fifth and sixth aspects of the present invention, since the plunger of the solenoid is engaged with the engaging portion of the lever portion in the set state,
Unauthorized unlocking of the Crescent lock can be prevented and theft can be prevented. Further, according to the invention of claim 2, the power consumption of the battery of the sensor device can be reduced and the information can be communicated between the alarm control device and the sensor device periodically and automatically by remote operation. . Since the current consumption of the sensor device is small, the sensor device can be driven without replacing the battery for a long time. According to the invention of claim 3, when the remaining capacity of the battery of the sensor device is lowered, it can be confirmed by the alarm control device. According to the inventions of claims 7, 10 and 11, a plurality of sensor devices can be sequentially and reliably switched to the set state by a radio signal of the same frequency with a time difference. Since a plurality of lock devices can be managed by a single alarm control device using the same frequency, the structure is simplified and the lock operation detecting device can be manufactured at low cost. According to the invention of claim 8, the open state or the closed state of the sensor device can be easily visually confirmed by the display of the alarm control device. According to the ninth, twelfth and thirteenth aspects of the present invention, it is possible to immediately detect the illegal intrusion by the open sensor element and the impact sensor provided in each sensor device and generate an alarm signal.

[Brief description of drawings]

FIG. 1 is a block diagram showing an entire lock operation detecting device according to the present invention.

FIG. 2 is a schematic view of a house in which a lock operation detecting device according to the present invention is installed.

FIG. 3 is a perspective view of a sensor device used in the lock operation detecting device of the present invention.

FIG. 4 is a block circuit diagram of the sensor device.

FIG. 5 is a front view of an alarm control device used in the lock operation detection device of the present invention.

FIG. 6 is a side view of the alarm control device.

FIG. 7 is a block circuit diagram of the alarm control device.

FIG. 8 is a flowchart showing an operation sequence of the sensor device.

9 is a flowchart showing an operation sequence of the sensor device following FIG.

FIG. 10 is a flowchart showing an operation sequence of the sensor device continued from FIG.

FIG. 11 is a flowchart showing an operation sequence of the alarm control device.

FIG. 12 is a timing chart of pulses with which the alarm control device and the sensor device periodically communicate with each other.

[Explanation of symbols]

1 ... Sensor device, 2 ... Alarm control device, 10 ...
Crescent lock, 11 ... Lock communication device, 14 ...
Lever, 15 ... Magnet, 16 ... Battery, 17 ...
Impact sensor, 18 ... Reed switch, 19 ... Transmit / receive drive circuit, 20 ... Antenna, 22 ... Printed circuit board, 23 ... Setting switch, 24 ... Solenoid, 25 ... Plunger, 28 ... Transmit / receive control circuit, 29 .. Life detection circuit (capacity detection means), 30
..Light emitting element, 32..Manual set / reset button, 34..alarm, 35..antenna, 36
..Transmitting and receiving drive circuits, 37..Transmission and reception control circuits, 3
8 ... External reporting means,

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyoshi Yoda 1-6-8 Fukuura, Kanazawa-ku, Yokohama, Kanagawa

Claims (13)

[Claims] 1. A locking device (10) and a locking device (10)
A sensor device (1) having a lock communication device (11) that generates a wireless signal when the device is unlocked, and an alarm control device that generates an alarm signal when the wireless signal generated by the sensor device (1) is received. In the lock operation detecting device including (2), the lock device (10) includes a hook portion (1) rotatably supported.
3) and the lever (1) that rotates together with the hook (13)
4) and a solenoid (24) having a crescent lock (9) and a plunger (25) releasably arranged on a locking part (14a) formed on the lever part (14) of the crescent lock (9). ) And the lock communication device (11) of the sensor device (1) is connected to the battery (1
6), a transmission / reception control circuit (28) connected to the lock device (10), and a transmission / reception drive circuit (series) connected to the transmission / reception control circuit (28) and transmitting / receiving a radio signal to / from the alarm control device (2). The alarm control device (2) includes a transmission / reception drive circuit (36) for transmitting / receiving a radio signal to / from the sensor device (1), and a transmission / reception control circuit (37) connected to the transmission / reception drive circuit (36). ) And the alarm control device (2) sends a wireless signal including a set signal and a reset signal to the sensor device (1), and when the alarm control device (2) generates a wireless signal including the set signal, The sensor device (1) operates the solenoid (24) in one direction to move the plunger (25) to the crescent lock (9).
When the alarm control device (2) generates a wireless signal including a reset signal, the sensor device (1) actuates the solenoid (24) in the other direction to engage the plunger (25a). ) Is separated from the locking portion (14a) of the crescent lock (9), the lock operation detecting device. 2. A transmission / reception control circuit (2) for a sensor device (1).
8) transmits a wireless signal to the alarm control device (2) when receiving a wireless signal from the alarm control device (2), and
The lock operation detecting device according to claim 1, wherein the communication timer means enters a receiving state for regular communication after a fixed time. 3. A transmission / reception control circuit (2) for a sensor device (1).
8) is a capacity detecting means (2) for measuring the remaining capacity of the battery (16).
The lock operation detecting device according to claim 2, further comprising 9), which receives battery information from the capacity detecting means (29) and transmits the battery information to the alarm control device (2) when a certain time has elapsed. 4. A plurality of sensor devices (1) having a lock communication device (11) for generating a wireless signal when the lock device (10) is unlocked, and each of the plurality of sensor devices (1). An alarm control device (2) that generates an alarm signal when receiving a generated wireless signal, and the sensor device (1) outputs an alarm signal when the locking device (10) is unlocked (2) In the lock operation detection device for sending to the lock device, the lock communication device (11) of the sensor device (1) is connected to the transmission / reception control circuit (28) connected to the lock device (10) and to the transmission / reception control circuit (28). The alarm control device (2) includes a transmission / reception drive circuit (19) for transmitting / receiving a wireless signal, and the alarm control device (2) transmits / receives a wireless signal to / from the sensor device (1). 36) and a transmission / reception control circuit connected to the transmission / reception drive circuit (36). (37) and includes a transmission and reception control circuit (28) of each sensor device (1) the battery (1
6), capacity detection means (29) for measuring the remaining capacity of the battery (16), and information from the capacity detection means (29) is received and transmitted to the alarm control device (2) after a certain period of time has elapsed. The lock device (10) is provided with a communication timer means for generating a command signal, and the lock device (10) is rotatably supported.
3) and the lever (1) that rotates together with the hook (13)
4) and a solenoid (24) having a crescent lock (9) and a plunger (25) releasably arranged on a locking part (14a) formed on the lever part (14) of the crescent lock (9). ) And a transmission / reception control circuit (28) of the sensor device (1) transmits a wireless signal to the alarm control device (2) and receives a communication timer when receiving a wireless signal from the alarm control device (2). The alarm control device (2) sends a wireless signal including a set signal and a reset signal to the sensor device (1) in the receiving state by the communication timer means after the fixed time after a fixed time by the device to perform the alarm control. When the device (2) generates a radio signal including a set signal, the sensor device (1) actuates the solenoid (24) in one direction to move the plunger (25) to the crescent lock (9).
When the alarm control device (2) generates a wireless signal including a reset signal, the sensor device (1) actuates the solenoid (24) in the other direction to engage the plunger (25a). ) Is separated from the locking portion (14a) of the crescent lock (9), the lock operation detecting device. 5. The alarm control device (2) comprises a manual set / reset button (32) connected to a transmission / reception control circuit (37).
The transmission / reception control circuit (37) sends a set signal to the sensor device (1) through the transmission / reception drive circuit (36) when the manual set / reset button (32) is operated, and the sensor device (1) outputs an alarm. The lock operation detecting device according to claim 4, which is switched to a set state when a set signal is received from the control device (2) and operates the communication timer means. 6. The transmission / reception control circuit (37) sends a reset signal to the sensor device (1) through the transmission / reception drive circuit (36) when the manual set / reset button (32) is operated again, and the sensor device (1 5. The lock operation detecting device according to claim 4, wherein when the reset signal is received from the alarm controller (2), the switch is switched to the reset state and the communication timer means is activated. 7. A sensor device (1) comprises a plurality of sensor devices (1) communicating with an alarm control device (2), each sensor device (1) comprising a time difference timer means for counting a specific time, and a lock device. When the (10) is switched from the closed state to the open state, the transmission / reception control circuit (28) of the sensor device (1) transmits a code signal to the alarm control device (2) through the transmission / reception drive circuit (19) to perform transmission / reception control. The circuit (28) transmits the code signal, and then, when the specific time counted by the time difference timer means elapses, the circuit (28) again retransmits the code signal transmitted from the other sensor device (1) at a different timing with a time difference. The lock operation detecting device according to claim 4, which transmits a code signal to the alarm control device (2). 8. The sensor device (1) is composed of a plurality of sensor devices (1), and the alarm control device (2) receives a wireless signal from each sensor device (1) to detect each sensor device (1). 5. The lock operation detecting device according to claim 4, which displays switching of the locking device (10) from an open state to a closed state or switching from a closed state to an open state. 9. The sensor device (1) includes an open sensor element (18) for detecting switching of the lock device (10) from a closed state to an open state, and an impact sensor (for detecting an impact applied to the lock device (10). 17) and a transmission / reception control circuit (28)
When the detection signal from the open sensor element (18) or the impact sensor (17) is received, the transmission signal and the detection signal are transmitted to the alarm control device (2) through the transmission / reception drive circuit (19), and the alarm control device ( The lock operation detecting device according to claim 1 or 4, wherein the transmission / reception control circuit (37) of 2) generates an alarm signal when receiving a detection signal from the sensor device (1). 10. The transmission / reception control circuit (28) receives a detection signal from the open sensor element (18) or the impact sensor (17) and sends a code signal to the alarm control device (2) through the transmission / reception drive circuit (19). A detection signal is transmitted together with it, and then, when the specific time counted by the time difference timer means has elapsed, at a different timing with a time difference with respect to the code signal transmitted from the other sensor device (1),
The lock operation detecting device according to claim 7, wherein the alarm control device (2) again transmits the detection signal together with the code signal. 11. The sensor device (1) is composed of a plurality of sensor devices (1), and when the sensor device (1) and the alarm control device (2) initially communicate with each other, the alarm control device (2) is first After transmitting a wireless signal to the sensor device (1) and receiving information from the sensor device (1), after a certain period of time, a wireless signal is transmitted to the next sensor device (1) and the next sensor device (1) is transmitted. The alarm control device (2) repeats transmission / reception to / from each sensor device (1) at fixed time intervals by the radio signal of the same frequency, and finally transmits / receives to / from a predetermined number of sensor devices (1). The lock operation detection device according to claim 4, wherein the lock operation detection device ends. 12. The transmission / reception control circuit (28) transmits a detection signal from the open sensor element (18) or the impact sensor (17) during initial communication between each sensor device (1) and the alarm control device (2). When received, it sends a detection signal together with a code signal to the alarm control device (2) through the transmission / reception drive circuit (19), and the transmission / reception control circuit (37) of the alarm control device (2) detects the detection signal from the sensor device (1). The lock operation detecting device according to claim 9, wherein the lock operation detecting device generates an alarm signal when receiving the alarm. 13. Each sensor device (1) comprises a locking device (1
Between the open state and the closed state of (0) and the set state of transmitting the detection signal of the impact sensor (17) to the alarm control device (2), and the open state and the closed state of the locking device (10). 10. The lock according to claim 9, wherein the lock control device is switched to a non-set state in which only the switching of the above is transmitted to the alarm control device (2), and the detection signal of the impact sensor (17) is not transmitted to the alarm control device (2) in the non-set state. Operation detection device.