Estimating electrical parameters of a track circuit including a transmitter, a receiver, and a track section between the transmitter and receiver. The transmitter outputs, over the track section towards the receiver, a signal including a data packet part, and the signal received by the receiver is decoded to determine the data packet received. Simulated signals are generated, via a predetermined software model including parameters of the track circuit, by varying an actual value input for the model parameters, each signal generated corresponding to actual values input for the parameters. Each simulated signal is compared with the signal received at a receiver until finding a part of a simulated signal that matches a corresponding part of the signal received at a receiver. The actual parameter values corresponding to the simulated signal that match the signal received at the receiver are estimated as the actual parameters of the track circuit.

An obstruction detection system receives sensor data from sensor assemblies at different crossings of routes on which vehicles travel. The system determines whether an obstruction is present in one or more of the crossings based on the sensor data. The system wirelessly restricts movement of one or more vehicles responsive to determining that the obstruction is present by wirelessly communicating a notification signal to the one or more vehicles.

The present invention provides compositions and methods for reducing inflammation in the lungs of a mammal that is afflicted by a condition that leads to inflammation in the lungs. The compositions and methods described herein include agents that inhibit inflammasome signaling in the mammal such as antibodies directed against inflammasome components used alone or in combination with extracellular vesicle uptake inhibitor(s).

A method that can be implemented relatively easily and inexpensively for monitoring a hazard zone of a level crossing, divides a roadway into a first roadway section and a second roadway section. For this purpose, the method is carried out such that by use of a first radio module, first radio signals are emitted in a first detection region containing at least one part of the first roadway section. By use of a second radio module, second radio signals are emitted in a second detection region containing at least one part of the second roadway section. The hazard zone is monitored indirectly using an analysis which is based both on the first emitted radio signals as well as the second emitted radio signals and which relates to the detection regions.

There are disclosed apparatuses and methods for removal of a shaft bearing from a gate crossing mechanism. A bearing support includes support apertures and is positioned about the shaft bearing. A bearing ring includes ring apertures. A bearing tool includes keys in which each key has a shape allowing insertion through a ring aperture and a support aperture. The bearing tool shifts each key inward toward the shaft bearing. The bearing ring is rotated in a circular direction relative to the keys. The bearing tool withdraws the shaft bearing from the bearing support.

Various embodiments include a method for controlling a level crossing having barriers and signals comprising establishing a duration of a level crossing closure based at least in part on first signals caused by a first ultrasonic wave conducted in a first rail running over the level crossing and second signals caused by an ultrasonic wave conducted in a second rail running over the level crossing.

Various embodiments include a method for controlling a level crossing having barriers and signals comprising establishing a duration of a level crossing closure based at least in part on first signals caused by a first ultrasonic wave conducted in a first rail running over the level crossing and second signals caused by an ultrasonic wave conducted in a second rail running over the level crossing.

A warning system for detecting approaching object and method thereof are provided. A detection unit detects a moving path of the approaching object; a storage unit stores a warning information including the warning area and the confirmation condition; and a processing unit receives the detection signal provided by the detection unit to acquire the current moving path of the approaching object. When the approaching object is detected as moving in the buffering zone, the confirmation operation of the confirmation condition is activated. When the moving path falls in the warning area and fulfills the confirmation condition, the processing unit sends out a warning signal. Therefore, a potentially dangerous approaching object is accurately identified, and the warning is correctly sent.

A crossing gate mechanism includes a swingable gate arm, a rotatable gate arm shaft fixed to the gate arm, and an electronic sensor assembly coupled to the gate arm shaft. Rotation of the gate arm shaft corresponds with swinging of the gate arm. The electronic sensor assembly senses an angular position of the gate arm shaft and transmits a position signal corresponding thereto. The electronic sensor assembly includes a driving element that is attached to the gate arm shaft to rotate therewith. the electronic sensor assembly also includes a driven element that is driven by the driving element such that rotation of the gate arm shaft causes the driven element to rotate. The electronic sensor assembly is configured to generate the position signal based on a position of the gate arm shaft.

A crossing gate mechanism includes a swingable gate arm, a rotatable gate arm shaft fixed to the gate arm, and an electronic sensor assembly coupled to the gate arm shaft. Rotation of the gate arm shaft corresponds with swinging of the gate arm. The electronic sensor assembly senses an angular position of the gate arm shaft and transmits a position signal corresponding thereto. The electronic sensor assembly includes a driving element that is attached to the gate arm shaft to rotate therewith. the electronic sensor assembly also includes a driven element that is driven by the driving element such that rotation of the gate arm shaft causes the driven element to rotate. The electronic sensor assembly is configured to generate the position signal based on a position of the gate arm shaft.