TIME OF DAY CONTROL SYSTEM FOR STORAGE DATA IN DATA LOGGER APPARATUS

PROBLEM TO BE SOLVED: To provide a system capable of processing/displaying continuous data collected from a control target as continuous data by using a data display terminal, even when the continuity of time of day has been lost, which is controlled by a data logger apparatus. SOLUTION: The time of day of the data logger apparatus 11 has been assumed as not being able to keep continuity, and so the time of day is added to the data collected from the control target 17 by the data logger apparatus 11, whereby the collected data are stored continuously without being broken, even when the time of day goes back to the past or advances to the future. When the time of day of the required data is requested by the data display terminal 19, data in the range of the requested time of day are detected, and the data collected from the control target 17 and index information added thereto are transmitted to a data storage means 23. Then, the relative time width as actual continuous data is computed by the data display terminal 19, based on the volume of the data transmitted, and the continuous data, collected from the control target 17, are processed/displayed as the continuous data by the data display terminal 19. COPYRIGHT: (C)2006,JPO&NCIPI