| 摘要 |
A security system is provided to recognize the robbery of computer parts and to generate a burglar alarm signal by installing a motion sensor sensing the movement of an object inside a computer. A security system includes a sensor part(200), a power switching part(300), a sensor controlling part(400), and a wireless transmitting part(500). The sensor part includes a motion sensor(210) sensing the movement of an object at a computer case inside and generating a burglar alarm signal. The power switching part has a power connector(330) which supplies computer power(350) to the sensor part, a battery(310) which supplies power to the sensor part when the computer power is cut off, and a converting switch(320) which converts a power supply unit between the power connector and a battery connector(340) according to whether the computer power is cut off. The sensor controlling part has a sensor port(410) which is connected with the sensor part to receive the burglar alarm signal, and a microprocessor part(420) which generates transmission data. The wireless transmitting part has a frequency generator(510), an amplifier(520), and a transmitting antenna(530). |
