Electronically controlled grade crossing gate system and method
First Claim
1. An electronically controlled grade crossing gate system, comprising:
- a gate arm;
a gate arm moving assembly configured to move said gate arm;
a position sensor assembly configured to continuously sense a position of said gate arm;
wherein said position sensor assembly is a non-contact position sensor assembly comprisinga gear position sensor configured to measure an angular displacement of a gear assembly,a shaft position sensor configured to measure a rotation of a shaft of the gear assembly,a shaft reference position sensor configured to measure a movement of the shaft in relation to a stationary reference, anda tip position sensor coupled to a tip of said gate arm and configured to indicate a predetermined orientation mode of said gate arm; and
a controller coupled to said gate arm moving assembly and said position sensor assembly, wherein said controller is configured to receive an incoming command related to said position of said gate arm, activate said gate arm moving assembly in response to said incoming command and communicate with said position sensor assembly to monitor said position of said gate arm.
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Accused Products
Abstract
An electronically controlled grade crossing gate system and method. The system includes a gate arm, a gate arm moving assembly, a position sensor assembly and a controller. The gate arm moving assembly is configured to move the gate arm and the position sensor assembly is configured to sense a position of the gate arm. The position sensor assembly is a non-contact position sensor assembly. The controller is coupled to the gate arm moving assembly and the position sensor assembly and it is configured to receive an incoming command related to the gate arm. The controller activates the gate arm moving assembly in response to the incoming command and communicates with the position sensor assembly to monitor the position of the gate arm.
87 Citations
29 Claims
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1. An electronically controlled grade crossing gate system, comprising:
a gate arm; a gate arm moving assembly configured to move said gate arm; a position sensor assembly configured to continuously sense a position of said gate arm;
wherein said position sensor assembly is a non-contact position sensor assembly comprisinga gear position sensor configured to measure an angular displacement of a gear assembly, a shaft position sensor configured to measure a rotation of a shaft of the gear assembly, a shaft reference position sensor configured to measure a movement of the shaft in relation to a stationary reference, and a tip position sensor coupled to a tip of said gate arm and configured to indicate a predetermined orientation mode of said gate arm; and a controller coupled to said gate arm moving assembly and said position sensor assembly, wherein said controller is configured to receive an incoming command related to said position of said gate arm, activate said gate arm moving assembly in response to said incoming command and communicate with said position sensor assembly to monitor said position of said gate arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An electronic system for controlling a grade crossing gate, comprising:
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a gate arm; a gate arm moving assembly configured to move said gate arm; a position sensor assembly configured to sense continuously a position of said gate arm, wherein said position sensor assembly is a non-contact position sensor assembly comprising a gear position sensor configured to measure an angular displacement of a gear assembly, a shaft position sensor configured to measure a rotation of a shaft of the gear assembly, a shaft reference position sensor configured to measure a movement of the shaft in relation to a stationary reference, and a tip position sensor coupled to a tip of said gate arm and configured to indicate a predetermined orientation mode of said gate arm; a controller, coupled to said gate arm moving assembly and said position sensor assembly, wherein said controller is configured to receive an incoming command related to said position of said gate arm, activate said gate arm moving assembly in response to said incoming command and communicate with said position sensor assembly to monitor said position of said gate arm; and a remotely located control unit configured to communicate with said controller to control and monitor the operation of said gate arm, said gate arm moving assembly, said position sensor assembly and/or said controller. - View Dependent Claims (28, 29)
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Specification