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Patent Searching and Data


Title:
DATA TRANSMISSION METHOD AND CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/053403
Kind Code:
A1
Abstract:
Provided are a data transmission method and a control system with which it is possible to create control programs for control devices even if the format of transmission data is not determined, and also with which it is not necessary to alter the control programs even if the format of the transmission data is altered. The data transmission method comprises: a step in which data items transmitted among a plurality of control devices (2) are associated with identification keys; a step in which a sequence for the identification keys associated with the data items transmitted by the control devices (2) is determined; a step in which each control device (2) stores, in accordance with said sequence, transmission data within a transmission frame generated by that control device (2); and a step in which the control devices (2) read in the transmission data from the transmission frames in accordance with the sequence (8) acquired from the control devices (2) which are the transmission sources of the reception data.

Inventors:
YAMADA TAKAHIRO (JP)
MARUYAMA YOSHIO (JP)
AKATSU TOHRU (JP)
Application Number:
PCT/JP2011/073428
Publication Date:
April 26, 2012
Filing Date:
October 12, 2011
Export Citation:
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Assignee:
HITACHI LTD (JP)
YAMADA TAKAHIRO (JP)
MARUYAMA YOSHIO (JP)
AKATSU TOHRU (JP)
International Classes:
G05B23/02; G05B15/02; G06F13/00
Foreign References:
JP2002149212A2002-05-24
JPH08123502A1996-05-17
JP2001255902A2001-09-21
JPH09219714A1997-08-19
JP2007020150A2007-01-25
Attorney, Agent or Firm:
ISONO Michizo (JP)
Michizo Isono (JP)
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Claims: