Design And Development Of Remote Power Meter Based On CDMA

Because of the wireless communication technology's development, definitelymay realize the Power Company using the CDMA1X data network non-real-timeconnection mode of transmission with each to copy the table terminal constructionwireless the data transmission. Therefore, this article designed one kind to copy thetable system wireless based on the CDMA technology electric power, realized theElectricity company through VPDN with each to copy the table terminal to constructinto the hypothesized special-purpose digit dialing network wireless, realizedelectrical power system's transmission data timeliness, the accuracy and the security.This article described and analyzes the electric power to copy the table system'shardware constitution wireless in detail, what we used was ZTEIT MG801TheCDMA module, based on this aimed at the electric power to copy the table wirelessthe characteristic, carried on the design to the system software, the overall systemdesigned us is integrated development environment completes in Keil under theuvision3. As a result of the hardware source limit, before we used, the backgroundsystem carried on when the development software design have used thefunctionalization module, (backstage behavior) unified coordinated by the mainfunction, in the main function each function realized various modules function. Andto guarantee that the electric power copies the table data wireless the security,increased the encryption compression module design specially, and has made theimprovement to the LZ77 algorithm, enhances algorithm the compression ratio, theeffective enhancement system's security, and reduced the network current capacity,reduced the terminal run cost. Moreover we to aspects and so on module performance,communication protocol, pressure have carried on the test, finally indicated that thesystem in the correspondence success ratio, the data copies reads and the secureaspect is quite prominent. Finally introduced the electric power copies the tablemanagement system management system software overall construction wireless, eachmodule design as well as between them logical relation, and has carried on thefunction demonstration to Electricity company's daily application software.Through to moves in the Electricity Company copies the table system'sapplication test wireless based on CDMA, had proven this design can construct theElectricity Company to copy the table terminal wireless with the data transmission, the big enhancement electric power department regarding user electric instrument'ssupervision dynamics, has caused the marketing service to the intelligence, theintensive development.