| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a control communication apparatus which enables a TCP/IP standard network to be applied to even control communication which hates information missing, and a control communication method. <P>SOLUTION: A control communication device E which performs node processing 6 of an input packet 9 received through an IP network 10 and performs control output 7 includes: a clock 1 which compares and verifies the order and time of the input packets 9; a predictive value generation function 2 which generates a predictive value obtained by predicting a current value on the basis of control values input in the past; an input value selection function 3 which selects the predictive value generated by the predictive value generation function 2 instead of the input packet 9 in the case that the input packet has arrived behind a scheduled time; a correction value generation function 4 which generates a required error correction value on the basis of the predictive value and the input packet 9; and an error correction function 5 which corrects an input value to be given to the node processing 6 by using the error correction value. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
