Research And Realization Of Intelligent District Based On Power Line Communication

The universalization of intelligent district request it is designed with low cost and high performance. Power line communication (PLC) is the best way to correspond with the respect of technical or economical reasons. The power line transmission model has been established to explain the direct sequence spread spectrum(DSSS) is the the best method to modulate the signal to overcome the power line's shortcomings of high reduction, high noise, high distortion, and so on and make it possible to be a workable correspondence medium. In the intelligent district design proposal, the power line and the modem chip SC1128 which is adequate for our country's power line net situation are used to compose the the district–net; The family network can communicate with district administrative center through family gateway. The district administrative center has follow functions: first ,it can collect, reorganize and memory the dates of families,second,it can connect with internet and the family members can make long-distant inquiry and control family equipments. The article designs the PLC net of family based on expanding frequency,and debugs the ability of correspondence between host and guest modules. The facts demonstrate the system is workable. Finally, this paper discusses the software of above machine of the district administrative center, and present above machine management system according to Visual Basic 6.0 to fulfill such operation with data like saving, analysis, maintenance, inquiry and statistic and report forms printing.