Design of a housing safety risk warning system based on BeiDou satellite positioning

As our country shifts from the "infrastructure era" to the era of building maintenance, building collapse accidents occur from time to time, triggering the public's vigilance and concern about building safety, this thesis addresses the issues of real-time monitoring of housing safety and early warning of disasters, and conducts research from the aspects of sensor selection and arrangement, data acquisition and processing, cloud platform and mobile application development. Research, using BeiDou satellite positioning, 5G communication network, BDS/GNSS multimode module and other technologies, designed a house safety risk warning system. It was also deployed in the field for simulation experiments to verify the advantages of the system in terms of monitoring accuracy and response speed, and the results show that the system is feasible and practical in the field of housing safety. Finally, this paper discusses the limitations of the system and the direction of improvement, and in the future will further optimise the system algorithms and functions to expand the scope of application and safeguard people's lives and properties.