Campus Security Monitoring System For Multi-source Heterogeneous Data

In recent years,with the improvement of people's living material level,more and more people are aware of the importance of personal and property security.The school shoulders the heavy responsibility of talent cultivation and national rejuvenation,and its status and safety are self-evident.Build an effective and reliable campus monitoring information management system to achieve comprehensive monitoring and display of campus security and security information,help to grasp the overall security situation of the campus,minimize security risks;help protect the personal and property safety of teachers and students;help reduce campus security costs.However,most of the existing campus monitoring systems have only changed from traditional wired deployment to wireless,and their essence and technology have not changed fundamentally.Because of the different gateways,operating systems,access methods,etc.,all kinds of monitoring terminals are still produce heterogeneous data.It makes the sensing data in each monitoring network have information islands,which can not communicate and share in time and effectively,resulting in redundancy of monitoring data and waste of resources.Based on“Hebei Key Laboratory of Security&Protection Information Sensing and Processing”,and relying on sensors and cameras installed on campus,this paper designed and developed a campus monitoring information management system for multi-source heterogeneous data.The system consists of five parts:acquisition module,coordinator,gateway,server and display terminal.The acquisition module is composed of three kinds of sensor networks:LoRa,NB-IoT and ZigBee.The periodic collection of environmental information is realized by using temperature and humidity sensors,PM2.5 sensors and SO₂ sensors on its nodes.According to the characteristics of heterogeneous data in heterogeneous networks,defines a unified communication data format,the sensor protocol is encapsulated,and the gateway of heterogeneous network is designed and developed,which realizes the collection and forwarding of heterogeneous data in various existing campus collection networks.The server acts as the brain of the system,and this article focuses on the intelligent analysis,storage and processing of heterogeneous data uploaded by the gateway according to different sensor protocols.Finally,the centralized display and management of campus heterogeneous data was achieved through the monitoring platform built.