Abstract: A crossing gate mechanism includes an electric motor driving a main shaft, wherein the main shaft is configured to couple to a crossing gate arm, a position detection unit configured to detect a position of the main shaft, an electronic switching device configured to operate in different switching states, and a programmable control unit configured to control operation of the switching device based on a detected position of the main shaft in combination with a programmed switching state for the detected position.

Abstract: A crossing gate mechanism includes an enclosure housing multiple components including a control unit configured to operate the crossing gate mechanism and associated crossing gate arm, an electric motor driving a main shaft, the main shaft extending outside the enclosure and the crossing gate arm being coupled to the main shaft, one or more electronic sensor(s) capable of providing angular information, and a processing unit configured to determine positions based on the angular information.

Abstract: A crossing gate mechanism (300) includes a linkage (320) operably coupled to a crossing gate arm (310), wherein the crossing gate arm (310) is movable between a vertical position (VP) and a horizontal position (HP) via the linkage (320), wherein the linkage (320) is in a first position when the crossing gate arm (310) is in the vertical position (VP) and in a second position when the crossing gate arm (310) is in the horizontal position (HP), and wherein the linkage (320) in the second position mechanically locks the crossing gate arm (310) in the horizontal position (HP).

Abstract: Aspects of the disclosed embodiments generally relate to railway track circuits, in particular track circuits with continued distance monitoring and broken rail protection.

Abstract: A grade crossing control system includes a track transmitter configured to couple to rails of a railroad track, and a track receiver configured to couple to the rails of the railroad track, wherein the track transmitter comprises a signal source and an amplifier, and is configured to transmit a first signal to the rails, wherein the track receiver is configured to measure a second signal in response to the first signal, and wherein the track transmitter is configured to provide feedback measurement information of the first signal.

Abstract: A system for determining alignment of a signal includes a light assembly comprising a light source operated by an electronic circuit, a first position sensor configured to measure a geographical direction of the light assembly, a second position sensor configured to measure a tilt angle of the light assembly, and a light communication device configured to receive measurements of the first position sensor and the second position sensor, and wherein the light communication device is configured to evaluate the measurements and determine alignment of the light assembly based on predefined tolerance thresholds for the geographical direction and tilt angle.

Abstract: A crossing gate mechanism (300) includes a linkage (320) operably coupled to a crossing gate arm (310), wherein the crossing gate arm (310) is movable between a vertical position (VP) and a horizontal position (HP) via the linkage (320), wherein the linkage (320) is in a first position when the crossing gate arm (310) is in the vertical position (VP) and in a second position when the crossing gate arm (310) is in the horizontal position (HP), and wherein the linkage (320) in the second position mechanically locks the crossing gate arm (310) in the horizontal position (HP).

Abstract: A system (100) and method is provided that facilitates controlling signaling devices along railroad tracks in electrified territory. The system may include a first track circuit transmitter (116) connectable to a first end (160) of a first block (162) of a railroad track (180). A first processor (104) may be configured to determine a first signaling aspect (112) corresponding to a visible light signal outputted by a first signaling device (110) and cause the first track circuit transmitter to transmit a first code (166) corresponding to the first signaling aspect via a first AC carrier signal (164) through rails (182, 184) of the first block of the railroad track. The system may also include a first track circuit receiver (134) connectable to a second end (168) of the first block of the railroad track, which is configured to receive the first AC carrier signal through the rails of the first block of the railroad track and demodulate the first code from the first AC carrier signal.

Abstract: Aspects of the disclosed embodiments generally relate to railway track circuits, in particular track circuits with continued distance monitoring and broken rail protection.

Abstract: A system for determining alignment of a signal includes a light assembly comprising a light source operated by an electronic circuit, a first position sensor configured to measure a geographical direction of the light assembly, a second position sensor configured to measure a tilt angle of the light assembly, and a light communication device configured to receive measurements of the first position sensor and the second position sensor, and wherein the light communication device is configured to evaluate the measurements and determine alignment of the light assembly based on predefined tolerance thresholds for the geographical direction and tilt angle.

Abstract: A railroad measurement system includes a railroad track powered measurement device providing measurement signals of electrical quantities across rails of a railroad track; a wayside control device adapted to receive the measurement signals provided by the railroad track powered measurement device; and a communication network interfacing with the railroad track powered measurement device and adapted to transmit data, wherein the railroad track powered measurement device is adapted to transmit the measurement signals of the electrical quantities via the communication network, and the wayside control device is adapted to receive the measurement signals.

Abstract: A multichannel ground fault tester that can be connected to multiple individual circuits (or nodes isolated from each other within a circuit) at the same time. The circuits or nodes can be tested sequentially, or in any order, without manually disconnecting, moving and reconnecting the tester as is currently required when using a single-channel ground fault tester to test multiple circuits (or nodes isolated from each other within a circuit).

Abstract: A coded track circuit of a signaling control equipment to be located at a wayside location of a railway track is provided. The coded track circuit comprises a first track circuit card coupled to rails of the railway track to detect an absence of a train on the railway track, inform signallers and control relevant signals via track codes. The coded track circuit further comprises a second track circuit card coupled to rails of the railway track, the second track circuit card is inactive but ready to provide a warm-standby or a hot-standby such that the second track circuit card to take over control from the first track circuit card should the first track circuit card fails.

Abstract: A system (100) and method is provided that facilitates controlling signaling devices along railroad tracks in electrified territory. The system may include a first track circuit transmitter (116) connectable to a first end (160) of a first block (162) of a railroad track (180). A first processor (104) may be configured to determine a first signaling aspect (112) corresponding to a visible light signal outputted by a first signaling device (110) and cause the first track circuit transmitter to transmit a first code (166) corresponding to the first signaling aspect via a first AC carrier signal (164) through rails (182, 184) of the first block of the railroad track. The system may also include a first track circuit receiver (134) connectable to a second end (168) of the first block of the railroad track, which is configured to receive the first AC carrier signal through the rails of the first block of the railroad track and demodulate the first code from the first AC carrier signal.

Abstract: A lamp driver card to control lighting of a lamp load located on a wayside of a railway system is provided. The lamp driver card comprises a light source controller module including at least one channel having a semiconductor switch or a relay to receive power on a copper cable sized at a selected gauge size from a power source to turn ON or OFF the lamp load. The light source controller module is configured to support a multi-voltage rating range operation extended from a limited voltage to an extended operating voltage and a current rating to light the lamp load such that the light source controller module is compatible with relatively higher DC/AC voltages. The copper cable is sized at the selected gauge size of a first size to a second size based on a selected voltage rating of a first voltage system or a second multi-voltage ranges system.

Abstract: A multichannel ground fault tester that can be connected to multiple individual circuits (or nodes isolated from each other within a circuit) at the same time. The circuits or nodes can be tested sequentially, or in any order, without manually disconnecting, moving and reconnecting the tester as is currently required when using a single-channel ground fault tester to test multiple circuits (or nodes isolated from each other within a circuit).

Abstract: A railroad measurement system includes a railroad track powered measurement device providing measurement signals of electrical quantities across rails of a railroad track; a wayside control device adapted to receive the measurement signals provided by the railroad track powered measurement device; and a communication network interfacing with the railroad track powered measurement device and adapted to transmit data, wherein the railroad track powered measurement device is adapted to transmit the measurement signals of the electrical quantities via the communication network, and the wayside control device is adapted to receive the measurement signals.

Abstract: A coded track circuit of a signaling control equipment to be located at a wayside location of a railway track is provided. The coded track circuit comprises a first track circuit card coupled to rails of the railway track to detect an absence of a train on the railway track, inform signallers and control relevant signals via track codes. The coded track circuit further comprises a second track circuit card coupled to rails of the railway track, the second track circuit card is inactive but ready to provide a warm-standby or a hot-standby such that the second track circuit card to take over control from the first track circuit card should the first track circuit card fails.

Abstract: A lamp driver card to control lighting of a lamp load located on a wayside of a railway system is provided. The lamp driver card comprises a light source controller module including at least one channel having a semiconductor switch or a relay to receive power on a copper cable sized at a selected gauge size from a power source to turn ON or OFF the lamp load. The light source controller module is configured to support a multi-voltage rating range operation extended from a limited voltage to an extended operating voltage and a current rating to light the lamp load such that the light source controller module is compatible with relatively higher DC/AC voltages. The copper cable is sized at the selected gauge size of a first size to a second size based on a selected voltage rating of a first voltage system or a second multi-voltage ranges system.

Abstract: A communication system may wirelessly receive. A crossing controller may check the message to determine whether the message is a valid vital communication. In response to determining the message is the valid vital communication, the crossing controller may deactivate at least one crossing traffic control element. While the at least one crossing traffic control element is deactivated, the crossing controller may activate the at least one crossing traffic control element in response to receiving a command to activate the at least one crossing traffic control element at the communication system. In response to determining the message is not the valid vital communication, the crossing controller may activate the at least one crossing traffic control element.