Design And Study On Monitor System Of Load Electric Energy Based On Ethernet

At present, the management of China's colleges and universities' apartments are developing toward standardization and market development, accidents have occurred in electricity, while some colleges and universities have installed apartment energy metering control system, however, these systems monitor the prevalence of low level, billing accuracy is low, electricity-sharing, the network number of the drawbacks of low extent. Therefore, improving the Energy Measurement monitoring device has become more urgent. The issue of student hostels in colleges and universities to monitor energy metering system to study, design the Energy Measurement Monitoring System of the Load that with Ethernet Interface.The issue including the improvement of Energy Measurement monitoring device, design of Ethernet interface, improvement of the accuracy of energy measurement. The system selected microcontroller STR912FW44 as the core processor. Ethernet interface circuit selected RTL8019AS as Ethernet controllers, identification circuit using non-contact radio frequency identification cards. Software, the use of embedded TCP/IP protocol, the achievement of students in the use of Ethernet data the user's electricity requirements. COSφused as power factor to determine the value of a load to determine the requirements of the vicious. The system power measured within the accuracy of 0.5 levels, Ethernet interface chip to achieve WEB server applications. This topic will be the eventual realization of Ethernet access to embedded systems, the realization of the power measurement and monitoring, monitoring system to meet the electricity network, intelligence requirement, it promote the development of remote monitoring services, bringing a certain degree of socio-economic effectiveness.