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公开(公告)号：US20210139059A1
公开(公告)日：2021-05-13
申请号：US16476668
申请日：2017-06-02
摘要： Aspects of the disclosed embodiments generally relate to railway track circuits, in particular track circuits with continued distance monitoring and broken rail protection.
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公开(公告)号：US20210086810A1
公开(公告)日：2021-03-25
申请号：US17051566
申请日：2018-07-05
发明人： Brian Harp
摘要： To locate a shunt, the shunt includes an RF transmitter configured to wirelessly transmit an identifier of the shunt such as the configured shunt frequency. The shunt may include switches or memory locations that may be configured by an installer to correspond to the configured shunt frequency. Other embodiments employ switches or sensors influenced by jumpers installed in the shunt to configure the frequency of the shunt. A portable device receives a transmission including the identifier and displays it along with an indication of the received signal strength of the transmission, and maintenance personnel move the portable device along the track to locate the highest received signal strength, which indicates the location of the shunt. The shunt may also include a test circuit that may be configurable to generate a test frequency, determine a parameter indicative of shunt performance, and output a signal based on the parameter.
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公开(公告)号：US11430318B1
公开(公告)日：2022-08-30
申请号：US17243080
申请日：2021-04-28
摘要： There is described systems and methods for managing an electrical surge of railway signaling equipment. A breaker includes a mechanical reset button that shifts positions in response to detecting the electrical surge exceeding a threshold amperage. An opto-isolator deenergizes in response to the position shift of the mechanical reset button. The event recorder transmits an alarm signal to a remote office system in response to the deenergizing of the opto-isolator.
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公开(公告)号：US20210070330A1
公开(公告)日：2021-03-11
申请号：US17053249
申请日：2018-06-29
摘要： A lamp system (200) includes a lamp assembly (210, 215) with a light source (212) coupled to a base (214), an electronic circuit (216) for operating the light source (212), and a switching device (218) for setting a flash rate of the light source (212). A lamp communication device (250) configured to transmit control signals to the lamp assembly (210). A communication network (260) interfaces with the lamp assembly (210) and the lamp communication device (250). The electronic circuit (216) is configured to operate the light source (212) in response to a control signal (262) transmitted by the lamp communication device (250) via the communication network (260), and in accordance with a set flash rate so that the light source (212) switches between an on state and an off state by default.
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公开(公告)号：US11866076B2
公开(公告)日：2024-01-09
申请号：US16476668
申请日：2017-06-02
发明人： Holger Schmidt , Brian Harp , Brian Joseph Hogan , A. Nathan Edds
CPC分类号： B61L1/187 , B61L1/185 , B61L1/188 , B61L23/044
摘要： Aspects of the disclosed embodiments generally relate to railway track circuits, in particular track circuits with continued distance monitoring and broken rail protection.
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6.发明授权公开(公告)号：US11713066B2
公开(公告)日：2023-08-01
申请号：US16497690
申请日：2017-03-29
发明人： Brian Harp , Holger Schmidt
CPC分类号： B61L29/32 , B61L29/22 , B61L29/282 , G01V3/10
摘要： 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).
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公开(公告)号：US11459006B2
公开(公告)日：2022-10-04
申请号：US17049209
申请日：2018-06-14
IPC分类号： B61L5/18 , B61L29/04 , B61L29/28 , F21V19/04 , H01R33/94 , F21Y115/10 , F21W111/02
摘要： A modular lamp system (200) for a railroad crossing warning device includes a crossing lamp (210) and a crossing lamp base (220) controllable by a wayside control device (40), and a module (230) comprising an electronic circuit (250), wherein the crossing lamp base (220) is configured to provide power to the crossing lamp (210) and the module (230), and wherein, when the crossing lamp (210), the crossing lamp base (220) and the module (230) are assembled and in operation, the crossing lamp (210) performs a first action and the module (230) performs a second action, which is different from the first action.
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公开(公告)号：US20240003522A1
公开(公告)日：2024-01-04
申请号：US17804157
申请日：2022-05-26
发明人： Brian Harp , Bret Walker
CPC分类号： F21V21/15 , F21W2131/103 , B61L29/28
摘要： A remote controlled light adjustment device includes a horizontal adjustment arm, a vertical adjustment arm, a mounting base comprising multiple anchor points for coupling the horizontal adjustment arm and the vertical adjustment arm to the mounting base, and a remote control, wherein the mounting base, the horizontal adjustment arm and the vertical adjustment arm are configured to be mounted to a light device, and wherein the horizontal adjustment arm and the vertical adjustment arm are configured to move the light device based upon signals transmitted by the remote control and received by the mounting base.
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9.发明授权公开(公告)号：US11021180B2
公开(公告)日：2021-06-01
申请号：US15947143
申请日：2018-04-06
发明人： Brian Harp , Holger Schmidt , Stefan Fritschi , Jay Yocum
摘要： A railway road crossing warning system (10) including a railway road crossing control unit (18) that may be selectively set to a primary or a secondary mode of operation is provided. In the primary mode of operation, the railway road crossing control unit is responsive to a primary activation signal (21) received from a primary activation-signal source (22), such as a positive train control (PTC) system. In the event the primary activation signal from the primary activation-signal source is not available, railway road crossing control unit (18) is set to the secondary mode of operation, where the railway road crossing control unit is responsive to one or more signals (25) received from a secondary activation-signal source (26) including a railway-vehicle sensing system (28) electrically-decoupled from a railroad track (12). Disclosed embodiments maintain operational robustness in the presence of changing weather and avoid variable electrical ballast conditions that otherwise could develop across the rails, while providing a cost-effective and reliable backup capability for a PTC-started crossing system.
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公开(公告)号：US10676116B2
公开(公告)日：2020-06-09
申请号：US15688924
申请日：2017-08-29
发明人： Brian Harp
摘要： A cover plate for a junction box may include a plate portion configured to cover an opening of the junction box. The cover plate may include a mast portion configured to couple with equipment configured to be mounted on a mast. The cover plate may include an offset portion coupling the mast portion with a front side of the plate portion.
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