CDMA1X Communication Network High-speed Wireless Data Transportation Application In Electric Power Department

CDMA1X Technique, which is a wireless data communication technique promoted by China Unicom Company based on its CDMA network, is characterized by its mobile grouping business through CDMA network and by its capability of offering mobile grouping IP connection to its customers. The many advantages it possesses include high speed wireless data transportation, wireless connection in air, strict and integrated standards for the core network information and order agreement and compatibility to INTERNET, which enables its customers to surf on the internet at any location and any time. The current highest speed rate is 153.6Kbits/s and it is around 100Kbits/s in practical application, which is by far higher than 56Kbits/s - the common speed for going on internet by phone-dialing. The features of mobile communication, whose high data transportation capability and vat internet coverage can make it possible to replace the traditional Modem,X.25,data transportation radio and messages so as to become the key data grouping approach, can make it more applicable to the connecting of equipment in scattered locations.In this article the technical features of cdmalx wireless data communication and the vpdn technique supported by China Unicom Company are fully introduced and a technical approach based on the technical features of cdmalx concerning how to take advantage of the technical features of cdmalx and the vast coverage and low investment of mobile communication network is put forward in order to solve the previously unrealizable long-distance data communication problem through traditional methods such as cable, specialized line and phone line. In turn, a feasible technical scheme is designed in accordance with the above-mentioned approach to solve such practical problems as the online monitoring of remote power stations, the monitoring of water flow rate of rivers, the supervising of the releasing of pollutants and smoke for the environmental protection department, etc.The scheme, the feasibility of which is fully discussed, has already been put into practice in Zibo Power Department focusing on the monitoring of power station and of the data from the power plant. Through this specific application case, the author has introduced the application of this scheme in power system and its actual operation effect thoroughly, explained how to maintain the security of the system and how to encode and identify data in transportation, summed the technical advantages and application of the system and foresaw the prospects of its application.