With the development of mobile Internet technology and the popularity of intelligent mobile terminals, the data traffic load of mobile client users on the smart campus network platform has surged. How to reduce the data traffic of the smart campus network platform is an urgent problem to be solved. First, this paper discussed the key technologies of smart campus network teaching platform under the background of the 5G network, expounded the critical technologies of the transport layer of the Internet of Things (IoT) technology, and analyzed from the development perspective of the IoT platform. Second, by investigating the online classroom data of five types of colleges and universities in China and comparing the advantages and disadvantages of online classroom teaching and traditional classroom teaching, it is found that the number of online courses in colleges and universities has exploded in the second half of 2017. Next, this paper analyzed the demand of smart campus online teaching platform under the background of the 5G network, thus established an online teaching platform based on the four initiatives operation model (government-led, college sponsor, teacher subject, and academic director). Finally, this paper adopted the improved VIRE localization algorithm to obtain the specific location information of the student users in the classroom and, then, compared with the error obtained by the VIRE algorithm, and the error of the improved VIRE algorithm is smaller. In the process of obtaining information, the 5G network technology is used for data transmission, which can shorten the check-in time and can improve the positioning accuracy. INDEX TERMS 5G network, smart campus, online teaching platform, improved VIRE location algorithm.

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In order to meet the intelligent function of the switchgear, the fault transmission method of the switchgear based on the Internet of Things is researched and designed. Firstly, use the data collection terminal and monitor to monitor the parameters in the switchgear and transmit the detected faults; Secondly, use the Internet of Things method to design a monitoring switch platform to provide an operating environment for fault monitoring; Finally, verify the accuracy of the IOT(internet of things) technology in the fault transmission of switchgear.

After introducing the status of Caofeidian Industrial district, this thesis analyses the necessity of the gridding management of circular economy of Caofeidian Industrial District. Then it introduces the meaning of gridding management.On the basis of principles of grid cell division and the practical conditions of industrial district, the thesis raises to divide the enterprises into grid units. At last, the grid encoding method is proposed.

In order to improve the technological innovation effect of compound high-tech industry, this paper studies its dynamic resource allocation technology with the support of 5G communication technology, and analyzes the application of 5G communication technology in technological innovation of compound high-tech industry. In the uplink and downlink of wireless energy-carrying communication system, this paper studies the joint optimization of subcarrier allocation and power allocation of uplink and downlink to maximize the uplink and downlink weighted sum rate of the system. Moreover, this paper adopts the joint optimization algorithm of power and sub-carrier based on Lagrangian dual method and ellipsoid method to obtain the maximum information transmission rate of uplink and downlink. In addition, this paper constructs an intelligent innovation management system. The research results show that the dynamic resource allocation method based on 5G communication proposed in this paper has a very good effect in the application of technological innovation in complex high-tech industries.