Positive Train Control Using Autonomous Systems

摘要

The use of widely separated and coordinated cameras allows trains to recognize obstructions and calculate distance to them to a degree which enables them to react quickly and brake early enough to avoid accidents. This applies to hazards such as fallen trees, stalled cars, people, and other trains on the rails. The system can also apply to crossings, enabling them to see approaching trains and gauge their distance, velocity, and deceleration, so that they can be shut down early and alarms sounded immediately. These systems are autonomous, using software which allows trains to know exactly where they are and at what speed they are travelling independently of external signals, including GPS, allowing a measure of safety beyond normal communications. These systems can also work in the infra-red, allowing compensation for fog and rain.

主权项

1. A passive method of calculating parameters of fixed or moving objects relative to a fixed or moving reference comprising the steps of:
a. deploying a plurality of detection means for said reference to observe said objects; b. recognizing said objects individually or collectively as being of concern to said reference; c. coordinating said plurality of detection means so that data in meaningful form is returned to a processor of said reference for computing the parameters of relative motion between said objects of concern individually or collectively and said reference; d. computing with said processor of said reference parameters such as trajectory, velocity, acceleration or deceleration, and future position of said objects, relative to said reference.