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Railway Signaling Business

~ Keep pursuing safety ~

The railway signal business of Daido Signal progresses with a steady failsafe technology. The technology required for the railway signaling business has developed dramatically along with changes in circumstances surrounding the domestic railway transport network. In addition to pursuing safety, it is now indispensable that the service provider be equipped with technology enabling maintenance-free, automation and labor-saving system with amenity. Daido Signal is expected to play an increasing role globally in supporting "life" and "safety".
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Railway Signaling（System Products）
- Electronic Interlocking Device
  
  Control of railway signals by reading the condition of point machines is indispensable to secure safety of train operation at station yard. The electronic interlocking device is destined to organize interactive logics between railway signals and point machines, making use of fail-safe computer.
- Automatic Train Control Device (ATC)
  
  ATC collects information of train position and rail situation, automatically calculates the speed limit and transmits it from the ground system to the on-board system to control the train speed within the limit.
- Traffic Control System
  
  Traffic control system enables punctual train operation using computer. By controlling total train operations of each area, the system may rapidly cope with changes in train operation environment and inform passengers of current traffic condition by announcement and display.
- Monitoring Device for Railway Equipment
  
  Monitoring Device displays information on the conditions of railway equipment operation, transmitted from the sensors of sites to the control center. The sensors of the system measures the voltage and current of railway equipment, facilitates control center to monitor closely the conditions of each site.
- Relay Interlocking Device
  
  To secure safety of train operation at station yard, railway signals must correctly reflect the condition of point machines. The relay interlocking device consists of signal relays with functions to consolidate interactive logics between railway signals and point machines.
- Train Detector
  
  Train detection system is of great importance in securing safe train operation. Train detector based on track circuit system is a fail-safe system, using rails as parts of electric circuit　and shorting effect via train axles.
  　Daido Signal also developed a train detection system using fail-safe computer unit which detects plural track circuits comprehensively.
Railway Signaling （ Field Products）
- Signal Relay
  
  Relays control output signals by passing electric current into the input coil and then putting the output contacts into operation using the electromagnet-incurred power. Signal relays are designed and manufactured pursuing reliability based on fail-safe principle, as it is the core of train safety.
- Automatic Train Stop Device (ATS)
  
  ATS activates the train brake automatically to prevent from crash and derailment in case the train driver misses the stop signal or the train exceeds the speed limit.
  　Daido Signal develops high-level and various types of ATS according to individual railway environment and operating condition.
- Level Crossing Protection Device
  
  Railway level crossing protection devices include obstacle warning device detect vehicles stopping inside the level crossing, road warning device, crossing gate and train-detector. Daido Signal is also developing next-generation device that can function even under severe natural condition such as downpours and heavy snowfalls.
- Signal
  
  Signals give instructions regarding stop/go to trains. Color light signal combines green, orange-yellow and red lamps, and position light signal combines single color lamps. By using LED, Daido Signal realizes energy saving and long life of products.
- Power Supply
  
  Daido Signal develops and manufactures power supply, rectifier and transformer used to supply electric power to electronic interlocking device, level crossing protection device and other signaling devices.
Industry System Business

~ Through Fusion of Railway’s Reliability and Advanced Technology, Develop New Fields ~

Daido Signal applies high reliability technology of railway signaling to industry system. This includes fire fighting vehicle systems, the car manufacturing line systems and the energy conservation support systems,which contributes to the global environmental protection. As such, our industrial system plays an important part of industry where high reliability is required.
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Industry System Products
- On-board Control Systems for Special Vehicles
  
  Daido Signal develops and manufactures the computer control systems with high reliability for ladder vehicles, chemical fire distinguishing vehicles, etc.
- Energy Monitoring System
  
  Daido Signal develops the energy monitoring system to save the electric power consumption that contribute to the environmental protection in line with the energy saving law and the environmental standard.
- Contactless ID Tag System
  
  Daido Signal develops and manufactures the system configuration of the production control or other various instruments, utilizing the contactless ID technology.

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