-
公开(公告)号：US10012736B2
公开(公告)日：2018-07-03
申请号：US14205517
申请日：2014-03-12
Applicant: LOCKHEED MARTIN CORPORATION
Inventor： Thomas R. Metzger
Abstract: A system and process that can be used to determine vehicle attitude with only one navigation receiver. In one embodiment, the antenna of the navigation receiver is driven with a signal that modulates sensitivity in azimuth. The received navigation signal strength is demodulated by the phase at which the antenna is sweeping and a phase angle and a magnitude for the incoming signal are calculated. Using this calculated phase angle, magnitude and antenna characteristics, the location of the user (i.e. the navigation receiver) and the location of the navigation satellite, the attitude of the antenna and hence the user or user vehicle can be determined.
-
2.发明申请公开(公告)号：US20170050655A1
公开(公告)日：2017-02-23
申请号：US15341601
申请日：2016-11-02
Applicant: LOCKHEED MARTIN CORPORATION
Inventor： Harvey Bergstein , Thomas R. Metzger , Michael R. Pawlak , Warren H. Klinck
CPC classification number: B61L27/04 , B60T17/228 , B61H5/00 , B61K9/00 , B61L3/008 , B61L15/0036 , B61L15/0063 , B61L27/0022 , B61L27/0027 , B61L2201/00
Abstract: A train control system comprising a vital brake interface unit that is disposed between the train control processors and the braking system. The brake interface unit ensures that any failure in the control processors or the interface itself is detectable and, when detected, causes the system to fail safely (i.e., the train's brakes are applied). By virtue of the use of redundant circuitry paths, the vital braking interface unit enables real-time verification of system circuitry without actually applying the train's brakes.
Abstract translation: 一种列车控制系统，包括设置在列车控制处理器和制动系统之间的重要制动器接口单元。 制动接口单元确保控制处理器或接口本身中的任何故障都是可检测的，并且在被检测到时使系统安全地失效（即，应用列车的制动器）。 由于使用冗余电路路径，重要的制动接口单元能够实时地验证系统电路，而无需实际应用列车的制动。
-
Search Results
2
records
(took 0.01 seconds)
