Design of Liquid Level Monitoring System for Liquid Nitrogen Tanks in University Laboratories
To solve the problems of cumbersome use and lack of systematic management of existing laboratory liquid nitrogen tank level monitoring devices,a laboratory liquid nitrogen tank level monitoring system is designed.The system mainly consists of monitoring terminals,cloud servers and clients.The weight information of the liquid nitrogen tank is collected by weighing sensors to determine whether the liquid nitrogen tank level is below the threshold.Classic IoT technologies such as 4G Cat.1 communication technology,cloud servers,front-end Web pages,and WeChat mini programs are utilized to achieve liquid level supervision of the liquid nitrogen tank.The system adopts non-destructive installation,does not damage the tank body,is easy to operate,has low cost,and is suitable for almost all brands and models of liquid nitrogen tanks.Through testing and verification,the system has high weighing accuracy,low average power consumption,stable and reliable operation,and has certain promotional value.
liquid nitrogen tankliquid level monitoring4G communicationcloud serversWebWeChat mini program
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