Patent ID: 9116907
Filing Date: 2015-08-25
Classification: G05B,G06F

Abstract:
1. A system for compressing a data stream coming from a shop floor defined as a field of a plant, the data stream being segmented in field data intervals, each of the field data intervals carrying a tag composed of at least a value v° associated to a monitored variable and a timestamp when the monitored variable was recorded or calculated, the system comprising: a first buffering device for temporarily storing tags coming from the field; a programmable processing device containing firmware configured for having access to said first buffering device and taking the subsequent values v° and accumulating the values within compression time intervals as summation data values v being compressed values v; a second buffering device; a database accessible by said programmable processing device for storing the compressed values v taken from said second buffering device; a post-processing device for querying said database; said firmware of said programmable processing device programmed to: