Vital wayside train detection system

Details Vital wayside train detection system Vital wayside train detection system

B - Operations, Transporting

61

L

B61L 1/16 (2006.01) B61L 1/02 (2006.01)

Patent

CA 2685575

An track-mounted train detection system is disclosed. The invention describes the sensor detection apparatus and methods based on the principle of diversity. The intelligent wheel flange sensor system uses sensors on both rails separated by an optimum distance so as to contain an entire bogie therein. This allows classification of cars, detection of high rail vehicles, maintenance vehicles and locomotives by virtue of the different wheel sequences as the vehicle moves over the sensors. This invention uses time, space and wheel diversity in measurement of each axle and produces track occupied, direction, train speed, train length, wheel count, length of train, end of train detection and computes train progression by integration of the speed-time curve. The sensor also detects wheel shock and vibration for alarming of high wheel impacts. The sensors incorporates real-time static and between-wheel calibration, self monitoring and unique processing algorithms to prove the sensors ability to function safely in a vital application. A self test capability tests the sensors dynamically through a programmable self test magnetic stimuli that emulates a complete train movement at any speed over the sensors, such that all system responses to said stimulus is identical to that of a real train. The sensor system is used to create virtual blocks of any length which coupled with the train progression data, create both variable moving block and fixed block train control systems.

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