Train Carriage Warning System Based on Zigbee Wireless Sensor Network

In order to realize the timely and accurate alarm for abnormal conditions in train carriage, a scheme of safety warning system based on zigbee technology is proposed. The hardware and software architecture of the system are designed. Meanwhile, the workflow and implementation process of each node are elaborated in detail. The system is composed of five parts: sensor node, zigbee router, coordinator, video module and the intelligent terminal. Firstly, the decibels received by the sound sensor are judged through threshold and sent to the coordinator through zigbee router module. Secondly, the video module analyzes the video of the alarming carriage by means of artificial intelligence. Finally, the detailed alarm information is sent to the intelligent terminal. The development cost of the system is low and its installation and maintenance is convenient. It improves the monitoring facilities of train carriages, which can guarantee the accuracy and real-time of the warning. It has good expansibility and portability, which is of practical significance for improving the safety of train operation.