04561057 is referenced by 101 patents and cites 7 patents.

An apparatus for monitoring the motion of a railroad train includes an on-board unit which computes the speed, acceleration/deceleration, and distance traveled events of the train and stores such computed data for retention by a non-volatile memory after a power interruption or outage occurs. The apparatus also includes a portable unit to which the on-board unit, or the data retaining memory thereof, can be connected for conducting data transfers from the on-board unit memory to the portable unit. Once stored in the portable unit, the information can be formated and displayed as a history of the train operation for management and maintenance personnel, for example.

Title
Apparatus and method for monitoring motion of a railroad train
Application Number
6/485079
Publication Number
4561057
Application Date
April 14, 1983
Publication Date
December 24, 1985
Inventor
Jeffrey S Rosenberg
Duncan
OK, US
Michael J Lynch
Duncan
OK, US
John E Haley Jr
Duncan
OK, US
Agent
Thomas R Weaver
James R Duzan
E Harrison Gilbert III
Assignee
Halliburton Company
OK, US
IPC
B60L 3/12
G06G 15/48
G11B 5/00
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