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Study on the environmental safety monitoring system for modern tram

In order to monitor environmental indicators in the modern tram to ensure the safety of running, this paper designs a real-time monitoring system for the interior environment of modern trams. In the network topology for characteristics of modern tram's unique spatial structure and environment, the system acquires data related to temperature, humidity, air quality and abnormal gas by various types of sensors, and data are transmitted to host computer with wireless sensor network based on ZigBee. The system can not only display the environmental parameters and show it in the form of curve for monitoring in the host computer, but also store data in its database. If the host computer receives abnormal data, the system will sound alarm to remind people. The experimental result shows that the system performed well, and it achieves the expected design of functionality requirement.