Wireless area detection system

The invention discloses a wireless area detection system, which comprises wireless ultrasonic wave detectors, wireless area controllers, a node controller, a main controller and a computer, wherein the wireless ultrasonic wave detectors are distributed at all detection points of a control area and used for detecting information of an object to be detected in the area and transmitting the information to the wireless area controllers by a wireless communication module; the wireless area controllers compress, pack and transmit the received information of the detector to the node controller; the node controller further transmits the information to the main controller; and the main controller decompresses and processes the information and then sends the information to a computer for display. According to the invention, the detector and the controller are wirelessly communicated, thereby reducing cost of expensive transmission cables and complex construction, and solving the wiring difficulty.