| Yasumasa Tobita | Signaling Systems Design Dept., Mito Transportation Systems Product Div., Transportation Systems Div., Power & Industrial Systems, |
| Ikuo Shimada | Rolling Stock Electrical Systems Design Dept., Mito Transportation Systems Div., Power & Industrial Systems, |
| Kenichi Ishii | Signaling Systems Design Dept., Mito Transportation Systems Product Div., Transportation Systems Div., Power & Industrial Systems, |
| Kenji Oguma | Railway Traffic Systems Unit, Hitachi Research Lab., |
A signaling system provides a form of control information that supports safe and stable railway transportation. Signaling systems include interlocking device (which control point machines and signals), ATP (automatic train protection) systems, etc. These systems require continual improvement to meet evolving needs of the future. Hitachi, Ltd. has developed various new signaling systems. The digital ATP system realizes high density operation for rolling stock and provides maximum riding comfort with continuous-curve brake control. Our proposed electronic interlocking device series has dual verification architecture, in which an interlocking device and electronic terminal are mounted on the same rack, to save on space and improve maintainability. The Shinkansen ATP and interlocking system is an integrated system which consists of interlocking devices and ATP logic devices. The system saves space in the area where the equipment is installed and reduces costs. The development of these new signaling systems will contribute to the improvement of railway services in the near future.
DSP, ATP, signaling system, track circuit, train borne
