Majorization And Study Of A New Generation LKJ Software

LKJ is the train speed control system that was researched and developed by Chinese technician in order to prevent train aggressive signal,overspeed and assist driver in enhancing operational capacity.LKJ is part of Chinese railway operation control system and also the independent train control system with Chinese characteristics that distinguish from the CTCS series of train control system of foreign country.This system is formed through the research of the China's railway equipment and traffic organization for many years and has the characteristics of high control accuracy,less disturbance of transportation efficiency,wide applicability of railway and strong development ability.In recent years,the Lanzhou railway administration launched a different speed levels such as high speed and ordinary train.In a cross road,the old version of LKJ software of passenger and freight all four speed limit level have been unable to meet the requirements of a variety of transport.In high speed railway and ordinary railway interchange,the old LKJ software do not differentiate the high speed railway and ordinary railway,including speed limit level,different control model.Railway corporation also according to the new situation of railway transportation as well as the technical department in all kinds of demand,launched a new "Regulations of Railway Technical Management","The Train Running Monitoring Device(LKJ)Using the Maintenance Rules","The Train Running Monitoring Device(LKJ)Control Mode Setting Rules",they also need the new LKJ software updates to apply the new situation.Current LKJ software version is already running on the railway system for decades,and the general departments are very familiar with it.Regarding the tens thousands kilometers of railway is not practical and will lead to a series of security problems in the railway transport if discarding the old software and introducing the new software.Therefore,it is very important to requires using the old version and language in the new version software system that ensuring the operation mode,display to similar with the old version software.There are the following several aspects in the main research work: First of all,describing the main functions,the system structure,the related technologies of LKJ train running monitoring device and the relationship between LKJ device and LKJ data,making a preliminary understanding about LKJ train running monitoring device.Secondly,putting forward the the control software and data compiled software as two analysis object in LanZhou railway bureau.With analyzing the shortage of the old software and combining wtih the feedback of relevant departments,putting forward the optimization scheme and formulating feasible measures.Finally the new LKJ is been designed.This optimized LJK has been widely applied in Chinese railways and is quite effective in protection of railway safety,prevention and reduction of train running accidents.It features dramatic social and economic benefits.