Production

The objective of development is to increase the railroad traffic security and transformational means at a crossing, reductions of maintenance costs, reduction of capital investments in the new building, substitute of technically and morally obsolete devices of railroad automatics and telemechanics systems.

Microprocessor automatic crossing signaling is a system, which consist of light indicators (railroad and motorway traffic lights), acoustic signalizers, counting axel sensors (approaching section) and control equipment, which provides engaging of sound and light signalization, when a train occupies an approaching section.

Microprocessor automatic crossing signaling provides:

• Control over automatic traffic light signaling;
• Notification of train machinist about possibility to pass through a crossing;
• Notification of motorway users about a crossing opening or closing for motor transport traffic;
• Notification of pedestrians about a train approaching to a crossing zone;
• Monitoring of rolling-stock movements in the crossing’s zone with implementation of electronic system elements of axle counting by syncopation on existing coding rail circuits, which excludes failures at notification of train approaching to crossing, if block joints fails at signaling devices, if the coding automatic blocking is operating;
• State monitoring of technical devices.

Microprocessor automatic crossing signaling is developed with regard of ensuring traffic security, there are safe schemes of information input/output and sufficient noise immunity in the communication channel. The security is provided with a help of software and hardware on the basis of self-diagnosis, information encoding and implementation of self-testing schemes.

For communication of microprocessor automatic crossing signaling with stationary equipment a physical line of signaling, interlocking and blocking system, main line of communication, fiber optic line of communication or radio channel can be used.

Microprocessor automatic crossing signaling belongs to the class of systems with little maintenance and requires the checking with a help of visual indication only at a first time launch. It carries out uninterrupted self-testing, the control over accuracy of input and output circuits and communication lines. Any malfunctioning of elements of microprocessor automatic crossing signaling or any failure in its operation drives her into the state of protective failure and to closing of a crossing.

Economical efficiency of the implementation of microprocessor automatic crossing signaling:

• Reduction of costs for capital building, assembling and maintenance of post devices, decreasing of relay number;
• Usage of system counting points allows to decrease operational costs and losses due to theft of copper-bearing materials.