SYSTEM AND METHOD FOR WIRELESS REMOTE CONTROL OF LOCOMOTIVES

A system and method for remotely controlling an increased number of subsystems having an onboard locomotive control unit (LCU) and two associated operator control units (OCUs) on a single wireless channel. A time slot is assigned to each subsystem for making two-way transmissions to control the loco...

Full description

Saved in:
Bibliographic Details
Main Author RADER, ROBERT
Format Patent
LanguageEnglish
Spanish
Published 06.10.2005
EditionG
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:A system and method for remotely controlling an increased number of subsystems having an onboard locomotive control unit (LCU) and two associated operator control units (OCUs) on a single wireless channel. A time slot is assigned to each subsystem for making two-way transmissions to control the locomotive. A signal from an external timing source synchronizes each subsystem to minimize interference between transmissions from different subsystems. Time slots are assigned manually or automatically over a wireless network or by the LCU after monitoring the channel. The LCU automatically selects the direct or repeater transmission path depending upon whether or not it receives polling message responses from its associated OCUs. A GPS receiver in each subsystem receives the synchronization signal and provides geographic positioning data so the LCU can determine when to execute predefined, position-based commands. The secondary OCU may be turned off and rejoined to the subsystem without ceasing operation. Un sistema y un metodo para controlar remotamente un numero creciente de subsistemas que tienen una unidad de control de locomotora a bordo (LCU) y dos unidades de control de operador asociadas (OCUs) en un solo canal inalambrico. Una ranura de tiempo se asigna a cada subsistema para hacer transmisiones de dos vias para controlar la locomotora. Una senal proveniente de una fuente de sincronizacion externa sincroniza cada subsistema para reducir al minimo la interferencia entre las transmisiones provenientes de diversos subsistemas. Las ranuras de tiempo son asignadas manualmente o automaticamente sobre una red inalambrica o por la LCU despues de supervisar el canal. La IJCU selecciona automaticamente la trayectoria de transmision directa o repetidora dependiendo de si recibe o no respuestas del mensaje de interrogacion de sus OCUs asociadas. Un receptor GPS en cada subsistema recibe la senal de sincronizacion y proporciona datos de ubicacion geografica de manera que la LCU pueda determinar cuando ejecutar ordenes predefinidas, basadas en la posicion. La OCU secundaria se puede desconectar y volver a unir al subsistema sin interrumpir la operacion.
Bibliography:Application Number: MX2005PA01259