Gas Transmission and Supply Technologies

Outline

The Supervisory Control And Data Acquisition (SCADA) system, we call LUNASOLA, for the gas supply network is the system which controls and watches the gas supply network and transmission facilities in the Kansai area for 24 hours-a-day all the year around continuously. Osaka Gas safely and stably supplies gas with this system.

Composition

The system is chiefly composed of the central system in Osaka City and the backup system in Kyoto City and the monitoring terminals in each branch offices. These systems control and watch the gas supply network in collaboration, and we use in a main center, a back-up center, and branch offices. The radio network is used as the means of communication between two bases. Both systems always watch the network, and the control operation is done only by the system which has the right to control the system. The information of controlling, right to control, and various set value are shared between the two systems.

Specification

System	Servers, watch-control terminals, and communication control units
Watch locations	3,300 places
Watch point	90,000 points
Watch cycle	Every minute / connected by a local controller
Communication method	wireless network　/　Analog line (telephone)

Conclusion

This system has been replacing to the one which controls and watches our transmission facilities from high pressure to midium pressure B, and it will be completed in 2010.

LUNASOLA is a registered trademark of Osaka Gas Co., Ltd.