The Design And Implementation Of Laboratory Management System Based On Internet Of Things

Because of the booming enrollment at Chinese universities and the increasing development of university laboratories, functions and staff of the laboratory are also on the increase. The traditional methods of laboratory management, namely manual record and statistic, are not intelligent enough and cannot meet the demanding needs. Moreover, they are complicated as well as inefficient. It is difficult to inquire and calculate in real time. Therefore, the data information cannot be efficiently used for the analysis of the laboratory conditions. According to the current research situation of university laboratory management and the development of the Internet of Things, both domestic and foreign, as well as an intensive study of laboratory information management and monitoring, we design a system based on the Internet of Things for laboratory management. The system is also based on a survey of the state of mobile internet laboratories in Dalian University of Technology. Based upon the digital and network monitoring, this system combines the technology of Internet of Things and Mobile Internet. It manages the information automatically and monitors intelligently.The system mainly contains four modules:the wireless node for collecting and monitoring data; the Internet of Things gateway for connecting wireless node and server, similar to the nerve center of the Internet of Things; the server for analyzing, storing and displaying data; the mobile terminal for remote control. The wireless node can be classified into three types. The first type of wireless node consists of ZigBee, sensor and alertor. These wireless nodes are used to collect the relevant environmental information in laboratories and to present the abnormal state through the alertor, including the data of temperature and humidity, PM2.5 and light. The second type includes the ZigBee and electrical machine, which is to intelligently control light and curtain. The third type has ZigBee module and card reader. These nodes include the intelligent entrance guard and the attendance register. The intelligent entrance guard serves to verify and to open the door if authorized with the help of the electrical machine. The system of the attendance register accomplishes the double control of the remote terminal and swiping card for the access, superior to the traditional method of swiping card. The Internet of Things gateway contains ZigBee sink node and router. ZigBee sink node gathers the data from all wireless nodes and the data is to be transmitted to the server through router through socket communication protocol. The Internet of Things gateway is the information hub of the whole monitoring system of the laboratories. The server stores the data in database, responds to the quest and gives relevant control command accordingly. In this way, the administrator can inquire and manage all the data of the laboratories through the web server, as well as can remotely control the laboratories through the control terminal. The mobile terminal is based on the Android platform of mobile phone client, which sends control commands to the laboratories through Http networking protocol, for example, to turn on the lights, to control the curtain, to open the door etc.. Receiving requests, the server sends commands to the Internet of Things gateway, which is then to scatter the commands to specified wireless nodes. In this way, the commands are carried out correspondingly.The wireless node, consisting of ZigBee node, sensor and alertor, periodically collects the relevant environmental information in laboratories, including the data of temperature and humidity, PM2.5 and light. Through ZigBee communication, the data is to be transmitted to the Internet of Things gateway, consisting of ZigBee sink node and router. The Internet of Things gateway transmits the data to the server, which receives and saves the data to the database. The mobile phone client can send quests to the server all the time and receive the relevant data from the database. Even if there is not any people in the laboratories, it is still possible to monitor the state of the laboratories. When there is any abnormal situation, the alertor is to ring and people can gain the information in time and take measures as soon as possible to reduce the loss of laboratories.The system of laboratories management, based on the Internet of Things can monitor the laboratories around the clock on aspects such as temperature and humidity. It adopts the new automatic alarming system and achieves the automatic and intelligent monitoring. The system employs the NFC card reading and multiple identity verification to achieve the access and register, which guarantees the safety of the laboratories and monitors the attendance of the staff in laboratories. Moreover, with the help of mobile internet technology, people can control the light, curtain and lock of the laboratories through the mobile phone APP, which is very convenient for the staff. In addition, the system can manage the staff and the equipment at the same time, which helps to reduce the administrative cost. This system makes up the deficiency of the automatic and intelligent management of university laboratories, and creatively employs the multiple identity verification for access to laboratories. It successfully combines the technology of mobile internet and the Internet of Things. This system meets the needs of university laboratories and reaches the commercial level. It achieves the automatical management of information as well as the intelligent monitoring.