| Power Line Communication(PLC) is a specific telecommunication modes of electric system, which is high-speed communication technology, taking use of current power line and OFDM. Fiber, ADSL, wireless networks and many kinds of communication modes’ are currently rapid developed. PLC is widely used due to the low investment, without rewiring, widely application and low maintenance costs. However, PLC is only used in the field of remote meter reading. In recent years, with smart home concept is proposed, PLC has a broad space.With the wide range of user needs in PLC, a security system of PLC, a general broad, strong expansion and fast, is designed in this paper. The system can also realize the data exchange and network management. The proposed PLC system compared with traditional systems has several advantages.(1) In the network topology design, the whole network is split into multi-path network, multi-thread programming model is used. Every thread is responsible for the equipment operation of a subnetwork. Which improving the network data exchange speed, and enhancing network with load capacity of equipment.(2) C3-PLC communication standard demodulation modules are choosed. Device is connected to the network using 4- way handshake eap-psk authenticated encryption mode, which can ensure the legitimacy of network identity module and the quality of network communications security and communications.(3)Data exchange mode is adopted in network design, ensure network equipment operation status update at any time. The user can find the latest testing equipment running status, latest testing equipment running status and the PC is able to be firstly notified when leave the network due to the detection of terminal equipment.(4)Classifying the data detected by terminal equipment, the frequently used data is send to PC by poll response frames, the data should ensure update constantly. Other data has set specific data query instructions order, which is user-friendly query. |
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