Abstract: Abstract:Aiming at the problem of city gas pipeline leakage, this paper proposes a city gas pipeline network leakage and location technology based on RSSI algorithm. The algorithm analyzes and calculates the strength of the received signal between ZigBee nodes when the pipeline leaks, and finally obtains the location of the leak point. First, the algorithm model is established by using the RSSI signal strength value between the leakage target point and each receiving point, then the distance between the leakage point and each receiving point is obtained through the model, and finally the precise coordinate positioning calculation is obtained by the least square method. Simulation experiment results show that the algorithm proposed in this paper has high positioning accuracy and a wide range of applications.

Key words: gas pipeline network, fire early warning, RSSI algorithm, ZigBee