Search International and National Patent Collections

1. (WO2018037476) DATA TRANSMISSION APPARATUS AND DATA TRANSMISSION METHOD

Pub. No.:    WO/2018/037476    International Application No.:    PCT/JP2016/074504
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Wed Aug 24 01:59:59 CEST 2016
IPC: H04L 12/46
Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
東芝三菱電機産業システム株式会社
Inventors: HATTORI, Keisuke
服部 圭佑
OHKAMI, Tomohisa
狼 智久
Title: DATA TRANSMISSION APPARATUS AND DATA TRANSMISSION METHOD
Abstract:
Provided is a data transmission apparatus comprising a communication unit and a control unit. The communication unit is connected to a network and communicates with another apparatus via the network. When, in a data set including at least one item of data, the at least one item of data has changed from an immediately prior state, the control unit transmits, from the communication unit, the data set including the data with the changed state to the other apparatus. The control unit acquires the at least one item of data at a first periodicity and updates the at least one item of data at a second periodicity lower than the first periodicity, thereby transmitting the data set to the other apparatus at the frequency of the second periodicity or a frequency lower than the second periodicity. Thus, in the data transmission apparatus and the data transmission method, transmission of data at a higher frequency than necessary is suppressed.