Aiming at problem that it is difficult to look for parking spaces

a wireless parking detection node using geomagnetic sensor based on 433 MHz band is designed.The node uses geomagnetic sensor determines with and without parking status of parking by change of datas.Use MSP430F5438 and corresponding gated management circuit

the designed sensor can achieve low power consumption;433 MHz communication module is adopted to realize wireless transmission of datas.The software of the designed sensor

including main flow and flow of parking detection are expatiated.Using experiment to verify validity and rationality of the detecting node and detecting method of parking detecting node.