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Railway Signaling Systems
Digital/SINPL-ATC
To further shorten train intervals, deal with multiple types of information, and enhance the comfort of train riding and supporting information for train operators (information on location of preceding train, preliminary notice on sign indication ahead, information on arriving platform, etc.), we have realized ATC that utilizes digital code transmission. The information processing section has been integrated and the portions that cannot be shared is based on the minimized SINPL-ATC series. The system is also compatible with train control systems based on onboard calculation, enabling next-generation train control systems to be configured.
Features
Slimming down the equipment space Enhancing information reliability

The failsafe CPU board equipped with improved processing capabilities (32-bit RISC-CPU) has been adopted for integrating the processing system. The processing section of one unit of the equipment handles ATC code determination for 32 railway tracks, and signal processing.
The amplifier needed for each railway track has been doubled in a simple configuration, thereby reducing costs without reducing reliability.
The equipment consists of a processing section that centrally processes signal and sign indication logic, signal generation, modulation, failure detection and other functions, and a transmission section that amplifies signals for individual train tracks. The volume of I/F cables has been significantly reduced through adoption of the LAN I/F and integrating the processing systems.

The ATC telegram messages transmitted by the ground facilities via the rails have been added with prefix comma-free (PCF) and CRC signals for 20-bit frames of data, making the frame data 36-bit.
By adopting the multiple consistency logic that reflects consistency between two out of three telegram messages on control, the information reliability has been enhanced.
Overall configuration
The configuration is based on SINPL-ATC, and adopts a failsafe LAN that can share data among devices. The on-board equipment can cope with the new transportation systems by replacing the ATC receptor with an on-board antenna.
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