A new method and verification of vehicles detection based on RSSI variation

In this paper, we offer a new type of vehicle detection method based on the strength of the signal transmission with adopting CC1101 wireless communication chip, and RSSI (Received Signal Strength Indication) value of the data receiving node is different when there is a car or no car on the parking space. Through a large number of nodes arranged on the parking space, the data receiving node sends data that includes RSSI value and parking space state information to sink node constantly. Next, sink node receives data and uploads to system monitoring terminal. The experiment results show that vehicle detection method is high of accuracy, strong robustness and good reliability.