Sensor and system design of bridge simple perception and rapid alarm system

With the frequent occurrence of extreme geological disasters, road and bridge collapses occur frequently. To improve the perception and alarm ability of highway under extreme disaster, a simple perception- rapid alarm system for bridge is proposed in this paper. The system consists of perception system and rapid alarm system. The perception system monitors the status of the bridge in real time through low-power sensors, and realizes automatic networking with intelligent gateway as the node. When the monitoring data exceeds the threshold, the sensor triggers high-frequency acquisition and uploads the data to the cloud through the intelligent gateway. After the algorithm in the intelligent gateway or the cloud manager determines that the alarm is correct, the on-site alarm system is activated. Compared with the bridge health monitoring system, this system has the characteristics of "low cost, easy installation and high reliability". which enables overlay deployment of Bridges in risk areas.