Early warning of hazards for public passenger train transport system - collects error and fault data regarding door closing, temp. etc. in vehicle computer, transmits over short distance to intermediate receiver and/or nearby vehicle, and then to central computer

摘要

Each vehicle (26) is equipped with sensors for door opening, gas and smoke emission, and dangerous variations in temp., voltage, current, pressure and rotational speed. The data from these sensors is assembled by an on-board computer which when necessary instigates an emergency call over an ultrasonic, infra-red or radio link (9) to a similar vehicle within its range, and/or to a trackside or roadside transponder (18) linked by modem (20) and amplifier (21) to a central computer (19) and distributed computers (23-25) in the same network (22). USE/ADVANTAGE - In rapid transit railway, tramway or omnibus traffic. Disruptions and dangers can be indicated to drivers, passengers and control centres easily and without recourse to costly telecommunication appts..