Non-electrical power operated sensor and monitoring system using the same

A monitoring system for monitoring a position state of a first test object relative to a second test object, comprising:

• a non-electrical power operated sensor comprising:
• a gas valve mounted in the first test object, the gas valve comprising a housing and a cavity formed in the housing;
• a first sound device mounted on one end of the housing, the first sound device is in communication with the cavity;
• a second sound device mounted on another end of the housing, the second sound device is in communication with the cavity;
• and
• a piston connected to the second test object and the gas valve, the piston comprising a plug body and a push rod extending from one side of the plug body, wherein the plug body is slidably connected to the inner side wall of the chamber to form an air chamber, and the push rod end is connected to the second test object;
• wherein when the position state of the first test object relative to the second test object is changed, the second test object drives the plug body to move back and forth in the cavity by the push rod, the plug body movement makes the air chamber being squeezed, a first sound is made by the first sound device, a second sound is made by the second device, and the first sound is different from the second sound;
• a monitoring module comprising a receiving module for receiving a different sound from the non-electrical power operated sensor and sending a corresponding notification signal based on the first sound and the second sound;
• a control module for judging the position state of the first test object relative to the second test object based on the notification signal;
• and
• a communication module sending a position state of the first test object relative to the second test object to a user-bound electronic device.