Train protection and control system
First Claim
1. In a train safety and control system having at least one transmitter disposed at the railway right-of-way for the transmission of orders necessary for train traffic control and for the wireless exchange of general information between a track control center and trains moving in the associated right-of-way section, with a data processing unit being provided at the track control center for the cyclical determination of orders in the form of dynamic signals, the combination of monitoring means at the track control center for monitoring the issuance of dynamic signals from the data processing unit, to determine the availability of the data processing unit, a pilot sound generator operatively connected to said monitoring means for supplying a pilot sound signal in the presence of such dynamic signals, switching means having an input for receiving control orders, an input for receiving radio messages, and an output for selectively supplying either to the transmitter, and means for selectively actuating said switching means in accordance with the type of transmission to be effected, whereby the signals of the pilot sound generator on board the traction vehicle, in conjunction with separate switching means, controls the delivery of received control orders to responsive control means on the traction vehicle.
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Accused Products
Abstract
A train safety and control installation utilizing at least one transmitter disposed at the railway right-of-way for the transmission of orders necessary for train traffic control and for the wireless exchange of general information between a track control center and trains moving in the associated right-of-way section, with a data processing installation being provided at the track control center for the cyclical determination of orders in the form of dynamic signals in which the operational availability of the data processing system is monitored at the track control center, whereby at a predetermined operation readiness of the data processing system a pilot sound generator is continuously activated whose signals are supplied for the traction vehicles, a switching device, provided at the track control centers, having an input for receiving control orders, an input for receiving radio message, and an output for selectively supplying either to the transmitter, and apparatus for selectively actuating said switching device in accordance with the type of transmission to be effected, whereby the signals of the pilot sound generator on board the traction vehicle, in conjunction with a separate switching device controls the delivery of received control orders to responsive control apparatus on the traction vehicle.
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Citations
11 Claims
- 1. In a train safety and control system having at least one transmitter disposed at the railway right-of-way for the transmission of orders necessary for train traffic control and for the wireless exchange of general information between a track control center and trains moving in the associated right-of-way section, with a data processing unit being provided at the track control center for the cyclical determination of orders in the form of dynamic signals, the combination of monitoring means at the track control center for monitoring the issuance of dynamic signals from the data processing unit, to determine the availability of the data processing unit, a pilot sound generator operatively connected to said monitoring means for supplying a pilot sound signal in the presence of such dynamic signals, switching means having an input for receiving control orders, an input for receiving radio messages, and an output for selectively supplying either to the transmitter, and means for selectively actuating said switching means in accordance with the type of transmission to be effected, whereby the signals of the pilot sound generator on board the traction vehicle, in conjunction with separate switching means, controls the delivery of received control orders to responsive control means on the traction vehicle.
Specification