| In university laboratories,there are many precise scientific research instruments and some flammable,explosive and other dangerous items,and the laboratory is frequently used,often with sudden accidents,which not only seriously threaten the personal safety of scientific researchers,but also bring huge property losses to the University.Therefore,how to ensure the safety and reliability of laboratory equipment,ensure the safe storage of dangerous goods,and eliminate the hidden dangers of personal and property as far as possible has become a concern of the society.Under this background,an intelligent laboratory monitoring system is designed in this paper.ZigBee wireless communication technology is used to achieve full coverage of the laboratory environment.Temperature and humidity sensors,light intensity sensors,flame sensors,gas sensors,human body infrared sensors and other sensing equipment are used to monitor the laboratory environment.The data transmission between the terminal and the upper layer application is completed through the gateway composed of ZigBee module and WiFi module.The environmental monitoring and other functions of the whole system are realized through combining with the data reception and processing capabilities of the OneNET open platform for the Internet of Things.Compared with the traditional monitoring system,this system uses wireless communication technology and various sensors to solve the wiring difficulties and poor adaptability and so on.The test results show that the ZigBee network can be established in a short time,and can effectively collect and transmit data in real time in effective coverage space of ZigBee network nodes.The system has the advantages of simple installation and maintenance,friendly user interface and good scalability.It can discover various potential security risks in time to ensure the normal use of the laboratory,reduce the work intensity of management personnel,and improve the informatization level of laboratory management. |
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