| 摘要 |
A method utilizing a wireless leak detection and prevention system, used for preventing property damage and personal injury caused by liquid or gas leak. The system comprised of a wireless, battery operated apparatus having sensor(s) incorporated with an RF transmitter, used for detecting liquid or gas leaks, and transmits signal(s) to a wireless valve shutoff control unit. The valve shutoff control unit containing an RF transceiver and a processor designed to receive the detected signals and activate a supervised solenoid or motorized valve shut-off mechanism to stop the detected leak. In a preferred embodiment of the invention, the wireless valve control unit is connected to a motor, which is mounted on manual shutoff valve. Wherein the valve control unit activates the motor to produce torque to turn the valve towards a close position in response to a received detected leak signal from a sensor. An electronic or electromechanical circuitry is provided, to detect motor or gear turn cycles. The motor rotation is being controlled by the valve control unit processor, which stops motor rotation in response to a detected preset number of motor turn cycles. A digital, voice, SMS text message phone dialer is add to dispatch the detected leak signals, and notify monitoring personnel of the supervised system operation status. And provide user access to turn on or off a valve(s) from a remote location.
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