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Patent Searching and Data


Title:
IMAGE TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JPH09307877
Kind Code:
A
Abstract:

To improve the monitor efficiency by providing the image information transmission system in which large capacity data such as image data on the occurrence of an accident are properly acquired without intervention of operation of a supervisor.

The image transmission system is provided with a 2-way transmission system making communication of symbol information and an image transmission request to a central station and with an image transmission system 8 to send image information on the occurrence of an important event or on request of an image, a video image of a site station is sent by selecting an image with an image transmission switch 14 only on request from the center station and the image transmission system 8 sends only an image by 1ch. Thus, no multiplexer is required, deterioration in an image is less, and even when a site station is in failure, deterioration in the image is less. A plurality of site stations are grouped into one group and a private channel is tied to the central station from one group to build up the system as a bus type, the installation cost for private lines having been installed from each site station to the center station is reduced and a communication load is relieved and the entire system is built up inexpensively.


Inventors:
KONAKA KATSUMI
ENOMOTO HIROYASU
ARASAWA TOMOHIRO
Application Number:
JP11501996A
Publication Date:
November 28, 1997
Filing Date:
May 09, 1996
Export Citation:
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Assignee:
BABCOCK HITACHI KK
International Classes:
H04N7/18; G05B23/02; G08B26/00; (IPC1-7): H04N7/18; G05B23/02; G08B26/00
Attorney, Agent or Firm:
松永 孝義