Mobile Computing Based Railway Crossing Collision Avoidance System
First Claim
1. A mobile computing device having a CPU, a database of all GPS coordinates of railway crossings, and a GPS receiver to detect to GPS location of the mobile computing device, and a computer program residing on the mobile computing device, that compares the GPS location of the mobile computing device with the GPS location of all railway crossings, and said mobile computing device having an input from a radio receiver which radio receiver is tuned to listen to only a predetermined radio frequency being transmitted only by a train, which input notifies the mobile computing device when the predetermined radio frequency being transmitted by a train is detected, whereby when the mobile computing device detects the presence of the predetermined radio frequency transmitted by a train AND when the mobile computing device detects that its GPS location is at a railway crossing, the mobile computing device gives an alert to the operator of a vehicle carrying the mobile computing device.
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Abstract
A device to prevent railway crossing accidents between a roadway vehicle and a train, by comparing the UPS location of a roadway vehicle to the UPS location of the railway crossing by means of a mobile computing device, and alerting the operator of a roadway vehicle when the vehicle is at a railway crossing when an FM radio signal transmitted by the train is also detected by the mobile computing device.
22 Citations
15 Claims
- 1. A mobile computing device having a CPU, a database of all GPS coordinates of railway crossings, and a GPS receiver to detect to GPS location of the mobile computing device, and a computer program residing on the mobile computing device, that compares the GPS location of the mobile computing device with the GPS location of all railway crossings, and said mobile computing device having an input from a radio receiver which radio receiver is tuned to listen to only a predetermined radio frequency being transmitted only by a train, which input notifies the mobile computing device when the predetermined radio frequency being transmitted by a train is detected, whereby when the mobile computing device detects the presence of the predetermined radio frequency transmitted by a train AND when the mobile computing device detects that its GPS location is at a railway crossing, the mobile computing device gives an alert to the operator of a vehicle carrying the mobile computing device.
- 9. A mobile computing device having a CPU, a database of all GPS coordinates of railway crossings, and a GPS receiver to detect to GPS location of the mobile computing device, and a computer program residing on the mobile computing device that compares the GPS location of the mobile computing device with the GPS location of all railway crossings, and said mobile computing device having an input from an radio receiver which radio receiver is tuned to listen to only a predetermined radio frequency being transmitted only by a train, which input notifies the mobile computing device when the predetermined radio frequency being transmitted by a train is detected, where the radio frequency has encoded onto it the train'"'"'s distance from the railway crossing, the train'"'"'s speed, and the train'"'"'s length, and a decoder which can decode the train'"'"'s speed, distance from the railway crossing and train'"'"'s length from the radio signal and input the train'"'"'s speed, distance from the railway crossing and train'"'"'s length to the CPU, and the computer program uses the train'"'"'s speed, distance from the railway crossing and length, to determine if the train presents a danger to a vehicle at the railway crossing, whereby when the computer program determines that the train presents a danger to a vehicle at the railway crossing AND that the vehicle carrying the mobile computing in an area near the railway crossing such that the train presents a danger to that vehicle gives an audio and/or visual alert to the operator of a vehicle carrying the mobile computing device.
Specification