Invention Grant
- Patent Title: Railroad crossing control system including constant warning time device and axle counter system
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Application No.: US16497690Application Date: 2017-03-29
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Publication No.: US11713066B2Publication Date: 2023-08-01
- Inventor: Brian Harp , Holger Schmidt
- Applicant: Siemens Mobility, Inc.
- Applicant Address: US NY New York
- Assignee: Siemens Mobility, Inc.
- Current Assignee: Siemens Mobility, Inc.
- Current Assignee Address: US NY New York
- International Application: PCT/US2017/024688 2017.03.29
- International Announcement: WO2018/182588A 2018.10.04
- Date entered country: 2019-09-25
- Main IPC: B61L29/32
- IPC: B61L29/32 ; B61L29/22 ; B61L29/28 ; G01V3/10

Abstract:
A railroad crossing control system (100) includes a constant warning time device (40) with a control unit (50) configured to produce multiple signals, and a wheel sensing system (120) comprising at least one sensor (122) connected to a rail (20a, 20b) of a railroad track (20) at a predetermined position (P), wherein the wheel sensing system (120) detects a presence of railroad vehicle travelling on the railroad track (20) such that the at least one sensor (122) detects wheels of the railroad vehicle using electromagnetic fields, wherein the wheel sensing system (120) provides speed values of the railroad vehicle to the constant warning time device (40), and wherein the constant warning time device (40) produces a constant warning time signal for controlling a railroad crossing warning device in response to receiving the speed values of the wheel sensing system (120).
Public/Granted literature
- US20200017134A1 RAILROAD CROSSING CONTROL SYSTEM INCLUDING CONSTANT WARNING TIME DEVICE AND AXLE COUNTER SYSTEM Public/Granted day:2020-01-16
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