发明授权
- 专利标题: Variable frequency train detection
- 专利标题(中): 变频列车检测
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申请号: US13874059申请日: 2013-04-30
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公开(公告)号: US08857769B1公开(公告)日: 2014-10-14
- 发明人: Brian Hogan
- 申请人: Siemens Industry, Inc.
- 申请人地址: US GA Alpharetta
- 专利权人: Siemens Industry, Inc.
- 当前专利权人: Siemens Industry, Inc.
- 当前专利权人地址: US GA Alpharetta
- 主分类号: B61L23/34
- IPC分类号: B61L23/34 ; B61L1/02
摘要:
A method and device capable of reliable and accurate train prediction determinations that account for, and overcome the problems associated with, changing ballast conditions. The method and device will detect the presence of a train in an approach area based on a rail characteristic measured in relation to a first measurement frequency transmitted along the rails. If there is a condition such as a ballast condition that may affect the rail characteristic, the method and device will detect the distance and speed of the train based on a rail characteristic measured in relation to a second measurement frequency transmitted along the rails. Otherwise, the distance and speed of the train will be determined based on the rail characteristic measured in relation to the first measurement frequency.
公开/授权文献
- US20140319285A1 VARIABLE FREQUENCY TRAIN DETECTION 公开/授权日:2014-10-30