products Information

 

Railway Signaling Systems

 

Electronic Interlocking System

Electronic Interlocking System

 

 To secure safety of train operation at railway station, it is necessary to control railway signals by reading the condition of point machines. Therefore, it is required to have interactive logical device between railway signals and point machines. The electronic interlocking system is used to organize these interactive logics, and consisted of fail-safe computer device.

 

 

Automatic Train Control System(ATC)

Automatic Train Control System(ATC)

 

 Automatic Train Control System collects train information such as train position and situation, and automatically judge the allowing speed for the train and send it from the ground system to the on-board system to control the train operation under the limited speed.

 

 

 

Traffic Control System

Traffic Control System

 

 Traffic Control system is to support punctual train operation according to the diagram. The system automatically and comprehensively controls all train operation in a certain area, thus in case the operation is out of order, it is able to fix all operation immediately. Moreover, it is also able to promptly inform passengers the operation condition through broadcasting system and display.

 

 

 

●Monitoring Device for Railway Equipments

Monitoring Device for Railway Equipments

 

 Monitoring Device shows conditions of railway equipments through the sensors, and automatically pick and send the information to the control center. As the sensors are able to timely catch the voltage and current value of electric devices, it is easy to watch conditions of each device at the control center.

 

 

 

Relay Interlocking

Relay Interlocking

 

 To secure safety of train operation at railway station, it is necessary to control railway signals by reading the condition of point machines. Therefore, it is required to have interactive logical device between railway signals and point machines. The relay interlocking is used to organize these interactive logics, and consisted of signal relays.

 

 

 

Signal Relay

Signal Relay

 

 Relays are used to control other devices by electric current to the input coil of relay and then control the output contacts of relay through electromagnet. Particularly signal relays are the core of train safe operation, it is not only reliability but also fail-safe principle to be required to design and manufacture.

 

 

 

Train Detector

Train Detector

 

 Needless to say, train detection is important to secure safe train operation. Track circuit is a fail-safe system for detecting a train using two rails as parts of electric circuit by shorting with train axles.
 Recently Daido Signal developed a train detector using fail-safe computer unit which is comprehensively able to deal with some track circuits.

 

 

 

Automatic Train Stop System(ATS)

Automatic Train Stop System(ATS)

 

 In case the train driver is missing the stop signaling indication, or speeding against the limited speed, ATS system activates the train brake to prevent from crash and derailment.
  There are some types of ATS system according to each railway condition or operating condition, and Daido Signal is developing a higher stage of this system now.

 

 

 

 

Level Crossing Protection Equipments

Level Crossing Protection Equipments

 

 There are many protection equipments used to support safe operation of railway level crossings. These equipments are including level-crossing-alarms, barrier-machines, train-detectors, crossing-obstructing-detector which detects vehicles stopping inside the level crossing. Furthermore, Daido Signal is developing next-generation device that is reliable under downpours and heavy snowfalls.

 

 

 

Signal Lights

Signal Lights

 

 Signals are used for aspect of traffic control, and there are color-light-signal and position-light-signal. The former one gives aspect by combining green, orange-yellow and red lamps. The latter one gives aspect by combining single lamps. Recently Daido Signal manufactures LED signal lights which save energy and prolong lifetime.

 

 

 

Power Supplies

Power Supplies

 

 Daido Signal also has power-supplies, rectifiers and transformers used to supply electric power to electronic interlocking systems, level crossing protection equipments and other signaling devices.

 

 

 

 

 

 


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