【正文】 英文翻譯英文文獻(xiàn)：The application prospects of wireless munication technology in the grid munication[Technical Analysis of the thesis Keywords ]wireless。 grid munication。[Abstract] With the rapid development of modern science and technology to build the perfect strong and reliable munications network, has bee increasingly important. The articles bine the characteristics and needs of the electric power munications and wireless features of the new technology, analyze the application prospects of wireless munication technology in the power grid munications.First, an overviewElectric power munication network is run in order to ensure the security and stability of power system came into being. With the power system security and stability control systems, dispatching automation system is collectively known as the power system security and stability of the three pillars. China39。s electric power munication network through the construction of several decades of ups and downs, has begun to take shape, build and bee interchange munication network via satellite, microwave, carrier, cable and other means of munication. With the development of wireless munication technology, wireless munication system characteristics change dramatically. In recognition of the wireless munication network is not dependent on the grid grid, and strong resistance to natural disasters, but also has large bandwidth and transmission distance, nonlineofsight transmission, etc., is very suitable to make up for the munication of single coverage inplete surface defects . This paper briefly describes the application characteristics, advantages and disadvantages of wireless munications transmission system, and analyze the prospects of its application in power system. Complete network transmission system based on the future development trend of the sensor network towards the network to further improve the technology the application of the sensor network technology and network support. Promote the application of sensor networks from the perspective of the manufacturing of sensor node hardware platform, network application technology development to realworld applications into。 network support techniques include positioning technologies, synchronization technology, security technology, within the network information processing technology, to network performance enhance the main objective to improve overall network quality of service and intelligent.Within the network, information processing technology is designed packaging further integration of the original data collection, information processing and puting migrate to within the sensor network, which simplifies the equipment requirements on the client, the user side can be perceived to use more lowend and simple equipment read and apply information. Network information processing technology allows the sensor network has a more advanced, better information processing capabilities, available to the user39。s perception of the information will be easier to understand.Second, the wireless technology introduced(A) the concept of wireless munication technologyCurrently, wireless munications and its applications has bee one of the most active areas of research in the information science and technology today. The general by the wireless base stations, wireless terminal and application server.(B) the development status of wireless munication technologyWireless munications technology in accordance with the transmission distance can be roughly divided into the following four technology based on wireless personal area network (WPAN), wireless metropolitan area network based on wireless local area network (WLAN) based on the ( WMAN) and wireless WAN (WWAN).Overall, the representatives of the longdistance wireless access technologies: GSM, GPRS, 3G。 on behalf of the shortrange wireless access technologies, including: WLAN, UWB. Can be divided in accordance with the mobility of mobile access and fixed access. Fixed wireless access technology: wireless access (MMDS), Local Multipoint Distribution Service (LMDS), 。 mobile wireless access technologies including: of WPANs, WLAN, e WiMAX, WWAN. In accordance with the bandwidth can be divided into narrowband wireless access and broadband wireless access. Representatives of which broadband wireless access technologies 3G, LMDS, WiMAX。 narrowband wireless access technology on behalf of firstand secondgeneration cellular mobile munication system.A major wireless munications technologyFrom technology trends can be seen as the core of the OFDM + MIMO wireless munications technology will bee the mainstream of the development direction of future wireless munications. The current wireless munications technology based on this technology are: four kinds of B3G, WiMAX, WiFi, of WMN and other technologies.Other wireless munications technologyIn addition to the mainstream wireless munications technology, wireless munication technology also includes: IrDA, Bluetooth, the RFID, UWB, cluster munications, and other shortrange munications technology and on LMDS, MMDS, and pointtopoint microwave, satellite munications, long distance munication technology.(1) the IrDA: Infrared Data Association, is a pointtopoint data transfer protocol, the munication distance is generally between 0 ~ 1m, the fastest transfer rates up to 16Mbps, the munication medium for the nearinfrared wavelengths around 900 nm.(2) Bluetooth: Bluetooth in the global open band using frequency hopping spread spectrum technology, the munication medium of electromagnetic waves from to .(3) of RFID: Radio Frequency Identification, ie, radio frequency identification, monly known as labels. It is a noncontact automatic identification technology, automatic target recognition by the RF signal and access to relevant data. RFID tags, Interpretation of three basic elements, and antenna.(4) the UWB: Ultra Wideband, UltraWideband technology.