A light signal, in particular for rail-bound traffic routes, includes a control device which controls a light source, and an optical system for visualizing a signal term. In order to more precisely adjust brightness boundaries, light distribution and phantom light intensity, a transmission-controllable smart-glass element is provided in an aperture segment of the light flow.

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.

A railroad signal includes a mounting bracket and a signal head, the signal head being mounted to another structure by the mounting bracket, wherein the signal head includes a signal housing, a plurality of signal lights positioned in the signal housing, and a protection device for reducing or eliminating wind forces, the protection device comprising a snow shield and at least one wind guide element.

A warning light assembly and railway crossing including such an assembly are disclosed. An example warning light assembly includes a housing, an illumination device at least partially positioned within the housing, and a movement detection circuit positioned within the housing in a fixed position relative to the illumination device. The movement detection circuit can include a plurality of sensors of different types, and is configured to detect a change in position or orientation of the warning light assembly relative to an initial position, and, in response to detecting the change in position or orientation, generate an alert.

A signal structure is disclosed. The signal structure may include a housing and a light head disposed within the housing. The light head may include at least one signal light mounted thereto. The signal structure may also include at least one actuator operatively coupled to the light head and configured to move the light head within the housing.

An apparatus for monitoring a signal transmitter for a traffic control signal installation. The signal transmitter has a light-emitting diode. The monitoring apparatus includes: a two-channel measuring device for measuring an actual light intensity of the light which is emitted by the diode and for measuring at least one electrical characteristic variable of the diode, and a control device for operating the signal transmitter depending on the measured actual light intensity and the measured electrical characteristic variable. There is also described a corresponding method, a signal transmitter, a traffic control signal installation and a computer program.

A derail placement warning system for a railway derailer that automatically generates an alert to inform railway personnel (or others) of the placement of the derailer on a rail of the railway such that the derailer will derail rail traffic over the derailer. The warning system has an electronic circuit with an electric power source, an electronic switch and an electronic alert, and is configured for the switch to automatically activate and turn ON the alert when the derailing component of the derailer is positioned atop a railway rail. The alert comprises one or more of an audible component, a tactile sensation, an olfactory component, a visible light emission, and an electronic transmission.

A smart lamp system and method for monitoring a status of LEDs. The system can provide LED status monitoring using a logic controller communicating with at least one strip of LEDs. The system can utilize the logic controller to assign a unique identifier (ID) to the at least one strip of LEDs based on a physical position of a plurality of dual-inline package (DIP) switches incorporated within a smart lamp housing. The system can provide a hardware architecture to interface the logic controller with a power-line communication (PLC) transceiver. The system can establish a communication protocol between the PLC transceiver and a PLC receiver to efficiently communicate the statuses of the LEDs. The logic controller can generate a payload including a binary representation of the unique ID of the smart lamp and the statuses of the LEDs and transmit the payload to the PLC transceiver.

A computing device communicatively coupled to a light assembly that is coupled to a railroad track and that is operable to emit light in a plurality of different colors, determines a current train state of a plurality of different train states at a first location. In response to determining that the current train state is a first train state of the plurality of different train states, the computing device causes the light assembly to emit a first color of the plurality of different colors emittable by the light assembly.

A monitoring system for a light emitting diode (LED) signal (100) includes optical detectors (120) for measuring a light output of LEDs (112, 114), a first processing unit (124) in communication with the plurality of optical detectors (120) and configured to receive and process measurement data of the light output from the plurality of optical detectors (120), and a first switching element (130) operably coupled to the first processing unit (124). The first processing unit (124) is further configured to transmit a control signal based on the measurement data of the light output of the plurality of LEDs (112, 114) to the first switching element (130) to disconnect a reference load (150) by switching from a first state to a second state when the light output is less than a predefined threshold value, wherein the second state of the first switching element (130) is stored in a storage medium (148).