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Patent Searching and Data


Title:
GAS SHUT-OFF DEVICE
Document Type and Number:
Japanese Patent JP2008175707
Kind Code:
A
Abstract:

To provide a gas shut-off device capable of performing update of a prepaid rate or a contract period by wireless communication between a gas meter and a mobile terminal device.

This gas shut-off device comprises a flowrate measurement means 17 for measuring a gas flowrate, a gas shut-off valve 2c for automatically shutting off or opening a gas flow path, an information memory means 10b for storing various kinds of information of the measurement results by the flowrate measurement means 17, a wireless communication module 11 for communicating information with a plurality of opposite parties, a communication switching means 10c for switching a communication frequency band depending on the opposite party, an individual identification means 27 for identifying the opposite party from the received information and permitting the communication when it is matched with an identification code stored beforehand, an update judgment means 29 for judging update of the prepaid rate or the contract period from the received information after the permission of the communication by the individual identification means 27, and a shut-off valve control means 25 for controlling the gas shut-off valve 2c from the judgment result by the update judgment means 29.


Inventors:
Kamiyama, Kazunori
Murakami, Shigeru
Application Number:
JP2007000009745
Publication Date:
July 31, 2008
Filing Date:
January 19, 2007
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G01F3/22; G01D4/00; G01F1/66