Research Of Network Application System Based On Power Line Carrier Technology

This paper has introduced the present domestic and international research currentsituation of power line carrier technology at first. The carrier communication of thepower line, as a kind of important communication means, in the smart home, widelyused in the intellectual building. Do not need to carry on the transformation andfavoring by people already existing building arrangement as a simple and directmethod. Airfield lighting system to be to ensure the important eye of the plane flightsafety to look at and help the apparatus of boat at the airport, play a key role while theplane enters near and land. It is too normal to concern the security that the plane takesoff and lands to help the operation of the boat light system directly. A original onehelp boat to be light artificial to patrol, examine way can meet, require while beingown. Through simple introduction to the airfield lighting system, including therequirement and composition for the airfield lighting system. The light patrol theresearch current situation which examined the monitoring system to explain to helpingnavigating both at home and abroad, it explains and compares to carry on thetechnology of communication in utilizing the power line, have pointed out thatresearches and develops and patrols the necessity which examines the monitoringsystem newly. Control to helping the light apparatus of boat automatically, improveand help the systematic dependability of the boat light, become basic demand whichhelps the boat light system. To helping the systematic current situation of boat light topropose the design plan of the monitoring control system based on power line carriertechnology, its advantage is that installation is simple and convenient, do not need tolay the special-purpose communication line. Then described the system makes up anddesigns systematically in detail, has explained systematic hardware and software arerealized.System let light last computer and at location machine detected lamp unitmeasure unit three part location. It make use of bunch of vocal imitation skill torealize light it stand manage computer and at location machine the communications of unit. This is difficult point and key that the whole system realizes. Transmit and adoptthe direct sequence spread spectrum technology on the power line frequently in data,have solve the discernment problem of modulating the signal under the high noiseenvironment, has improved the SNR of the communication signal, guarantee thedependability of data transmission. Thesis provide power line example Cheng thatsignal carrier launch and receive finally.The airfield lighting system to design according to the demand, has introducedthe function of the whole system making up and every component in detail. Hasdesigned the main hardware circuit of the system, including up-machine circuit,detected lamp circuit of unit, the signal carrier emits and receives circuit. Havenarrated the communication protocol of the communication function in the system todesign and realize in detail, it is including up-machine and detected lamp circuit ofcommunication between unit the locations, stand last computer light and at locationrealization of communication between machine.Because of the limitations of time, this subject has not offered no intact system inthe form of last achievement yet. The monitoring that the system is right to isolate theelementary damage situation of the voltage transformer, can not be very good yetarrives, this is a direction that should be further improved systematically in the future.