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| 內容簡介： |
Safety is the lifeline of railway transportation and the eternal theme of transportation production. Railway transport safety not only affects the production efficiency and economic benefits of enterprises， but also has a significant impact on society and economy. Track circuit， locomotive signal， Locomotive integrated radio communication equipment （CIR）， and train tail device provide an effective guarantee for the safety of train operation.
來源：香港大書城megBookStore,http://www.megbook.com.hk
Train operation monitoring and recording device is referred to as monitoring device， abbreviated as LKJ， which is a train speed monitoring device developed by Chinese railway to ensure the safety of train operation.
The device not only realizes the safe control of train speed， but also collects and records all kinds of locomotive running state information related to the safe operation of the train， which promotes the automation of locomotive running management.
LKJ operation record data processing system is the core subsystem of LKJ ground data processing and analysis system. Its main function is to record and process parameters in the
form of files， such as the state information of LKJ and its related on-board equipment during train operation， the operation standardization of drivers and passengers and on-board equipment testing personnel. Its processing results are used for quality and safety analysis or grading， so as to prevent the occurrence of traffic safety accidents from the source， and provide important basis for post-analysis of train operation accidents.
Locomotive 6A system， namely， locomotive on-board safety protection system， is an important device for safety protection of key parts of locomotive operation.
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