“列车运行监控记录装置”(以下简称“监控”)装备机车以后,机务行车险性及以上的事故很少发生。目前,机务的行车安全集中在“挤岔”、“脱线”和“撞车”的一般事故上,其根本原因是“监控”的控制没有形成闭环,有控制盲区。为此在无联锁道岔、无联锁线路上,在“监控”控制的盲 “Train operation monitoring and recording device” (hereinafter referred to as “monitoring”) After the installation of locomotives, locomotive driving safety and above accidents rarely occur. At present, the safety of vehicles is concentrated on the general accidents of “crowding out”, “off-line” and “crashing”. The fundamental reason is that the control of “monitoring” does not form a closed loop and has a blind control zone. To do this in the no-switch turnout, no interlocking lines, in the “control” blind control