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1. 发明专利

JPS5852567A VELOCITY OPERATING SYSTEM OF MOVING BODY 失效
公开(公告)号：JPS5852567A
公开(公告)日：1983-03-28
申请号：JP15057381
申请日：1981-09-25
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： IKEDA HARUO , MAEHARA TOKIO , KOMURO HIROMI
IPC分类号： G01P3/489 , G01P3/42 , G01P3/44 , G01P3/481 , G01P3/64 , G01R29/18
摘要： PURPOSE:To obtain an operation result of a correct velocity, by detecting omission of a pulse by input sequence of each pulse, and correcting the number of input pulses, when operating a velocity from a position signal input pulse of a moving body such as a vehicle, etc. CONSTITUTION:Input levels U, inverted W, V, inverted U, W and inverted V of every specified distance of a moving body are provided to an input pulse input part 1 of a time counting controller 200 through a controlling circuit 100. This input pulse phase number is stored in an input pulse phase number storage part 8 at the time of input. A pulse omission detecting part 9 compares a previous input pulse phase number storage part 10 with the storage part 8, and executes a rationality check of pulse sequence. Unless irrationality exists, the normal pulse number is sent to a position pulse counter 2, and in the event of irrationality, an omitted pulse is calculated from input sequence, a kind of input pulse phase, and a difference between the previous and present input pulse phase numbers, and the number of pulses which have added said result is sent to the counter 2. In this way, even in case when the input pulse number has been omitted, a correct velocity can be operated.

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