A Real-Time Bus Positioning System Based on LoRa Technology

With the development of the Internet of Things technology, smart transportation has been continuously studied in recent years. In order to help people identify the real-time location and expected arrival time of buses, this paper proposes a real-time bus positioning system based on Long Range (LoRa) technology. The system can ease the anxiety of people waiting for buses and make the travel smarter and more convenient. The system is composed of terminal devices, data concentrators, cloud servers, and user interface. The terminal device installed on the bus broadcasts its position data to the data concentrators. Then the data concentrators upload data to the cloud server and present it to users. Compared with the traditional real-time bus positioning system, our system operates in the unlicensed frequency band and has a long transmission distance, which does not require any communication costs and repeaters. Experimental results show that our system has the advantages of low power consumption, low packet loss rate and short time delay.