Intelligent parking lot control method based on radio frequency identification technology

The invention relates to an intelligent parking lot control method based on radio frequency identification technology. A system mainly comprises an intelligent terminal module, a modified active electronic tag module, a reader module, a data base module, an intelligent carport pilot system and an active tag searching system. Function module designs of the modified active electronic tag module Include circuit design of a radio frequency module, circuit design of an ultrasonic ranging module, peripheral circuit design of an MCU (micro control unit), circuit design of an LCM (liquid crystal module) and circuit design of a voice module. A modified active electronic tag is adopted for the system to add human-friendly functions such as expense reminding and carport reminding; by the aid of active design, development capacity of the tag is improved, read-write scope of the tag and a reader is increased, and active interaction of the tag with the reader is realized. A wireless fidelity module is embedded into the reader to enable the reader to transmit data to an information center through a basic network.