Research On Lightning Current Parameters Acquisition And Transmission System Based On GPRS

There are some researches on measuring lightning current parameters which based on magnetic tape record method at home and abroad. The practice prove that it is a good way to measure lightning current parameters, which has the virtue of high measurement accuracy, good antijamming ability, and low running cost. In recent research, people often focus on the method that use magnetic tape to gather lightning signal on the gather point, then read out the information from the tape reader, which can't implement automatic gathering and Real-time Date Acquisition.Based on the feasibility of measuring lightning current parameters by magnetic type and the problems to be solved, the subject is put forward to implement automatic gathering and remote transmission by using technique of single chip microprocessor and GPRS (General Packer Radio Service).The Mainly study on the subject is listed below.1. Acquisition of lightning current parameters. The objective is applying magnetic tape record technique and single chip microprocessor technique to implement Real-time Data Acquisition of lightning current parameters.2. Remote Transmission of Lightning Current Parameters. It mainly relies on GPRS communication network and Internet communication network.GPRS is a new bearer service that developed from the GSM system, and it doesn't need to excessively modify the GSM device. For GSM network communication technique is perfect and has large-scale covering area, we can take the advantage of GPRS remote communication to implement Real-time acquisition and transmission of lightning current parameters. That will make best use of our current resources.3. Design of the data monitor center. We can adopt the powerful Visual C++, and take the advantage of its special TCP/IP programmable interface WinSock to design the data monitor center. The data monitor center will analyze the data transmitted from acquisition module, and work out the parameters such as lightning peak current, lightning steepness, then judge the lightning back flashover and shielding failure.4. Protection and power supply of the device.The system can process long-range and regional acquisition of the lightning current parameters, which give support to the census of lightning, accurately locating the lightning strike point, and lightning strike accident analysis. What's more, it can accurately figure out the regular pattern of the lightning, and effectively monitor and early warn the lightning, then helps every unit take action to reduce the possibility of lightning damage.