LOCK OPERATION DETECTOR

Japanese Patent JP3836899

B2

PROBLEM TO BE SOLVED: To periodically and automatically communicate between an alarm controlling device and a sensor device by radio and to reduce battery consumption of the sensor device.
SOLUTION: This lock operation detector is equipped with a sensor device 1 having a lock communication device transmitting radio signals when a lock device is released and an alarm controlling device 2 transmitting alarm signals when the sensor device receives signals to be transmitted. The lock communication device for the sensor device is equipped with batteries 16, a transmitting controlling circuit 28 having a communication timer device connected to the lock device and a transmitting/receiving driving circuit 19 for transmitting and receiving radio signals to the alarm controlling device connected to the transmitting controlling circuit. The alarm controlling device is equipped with the transmitting/receiving driving circuit and transmitting controlling circuit for transmitting and receiving signals between the alarm controlling device and sensor device. The sensor device detects the abnormality in the lock device to transmit signals and, at the same time, a receiving state for periodical communications can be obtained after a certain time by the communication timer device.

JPH09217537	CRESCENT LOCK
JP3253101	[Title of Invention] Remote control device for vehicles
JP3977583	Locking / unlocking status monitoring device for building locking devices

Toshiya Kato
Hiroto
Masaru Ogasawara

JP32200495A

October 25, 2006

December 11, 1995

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Tostem Corporation
Alpha Co., Ltd.

E05B41/00; E05B45/06; G08B13/06; H04Q9/00; (IPC1-7): E05B41/00; E05B45/06; G08B13/06; H04Q9/00; H04Q9/00

JP7134790A
JP3212583A

Keiichi Shimizu
Akira Gotoda

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