WIRELESS SENSOR DEVICE AND WIRELESS SECURITY SYSTEM FOR ACCESS THE DEVICE FROM MAIN DEVICE ON SLEEP MODE

A wireless sensor terminal and a wireless crime prevention system using the same are provided to reduce an unnecessary operation or power consumption by coupling a wireless sensor terminal to a main device. A wireless sensor terminal includes a sensor interface(21), a wake-up unit(23), a communication unit(24) and a control unit(22). The sensor interface provides at least one sensor and an interface. The wake-up unit is operated in a wake-up mode and detects a wake-up signal transmitted from an external device. The control unit converts a sleep mode into the wake-up mode and activates the communication unit if receiving the wake-up signal from the wake-up unit in the sleep mode. The wake-up unit performs a step of checking identifier information from the received signal and determines that the signal having the identifier information is the wake-up signal.