Development Of A Parking Space Monitoring System Based On Infrared Detection And Wireless Transmission

The rapid development of China's economy has led to a surge in the number of private cars,and the problem of parking difficulties has become increasingly prominent,especially in large indoor parking lots.Due to environmental constraints,we cannot visually see the specific location of empty parking spaces,which will result in low parking efficiency.Therefore,how to improve the efficiency of indoor parking lot is an urgent problem to be solved.At present,the parking space monitoring system in the market is mainly divided into wired and wireless.The wired sensor wiring is cumbersome and wastes resources.The wireless is mainly based on WiFi transmission data,which requires more routing and large fluctuation of signal strength.Therefore,in the parking space monitoring direction,how to achieve more accurate monitoring data for better transmission is a valuable research direction.Based on the existing infrared detection technology and LoRa wireless technology,this paper designs a parking space monitoring system to monitor the occupancy of parking spaces.The purpose is to improve the efficiency of indoor parking,increase the aesthetics of indoor parking lots,and intelligent parking lots.Construction contributes.Specifically,the infrared detector is designed based on the principle of active infrared detection to monitor whether the parking space is occupied,and the monitoring data is transmitted to the parking information gathering node through the SX1278 chip.The information gathering node collects the information and uploads it to the terminal,and the terminal then publishes the information.On the display,this article mainly designs the parking space monitoring part.The hardware circuit of the parking space information monitoring node and the parking space information convergence module with STM32 as the control core is designed,including: microcontroller circuit,infrared detection module circuit,LoRa wireless communication module circuit and power module circuit.On the basis of the hardware circuit,the software flow of the parking space monitoring system is given.Finally,the parking space monitoring module and wireless communication are tested.The results show that the parking space monitoring system can reliably monitor the parking space of the indoor parking lot and realize the data remote distance.Transmission,and meet the aesthetic,low-cost system requirements,meets the DB11/T667-2009 parking lot induction technical standards.