Method and control apparatus for generating analog recurrent signal security data feedback

A control apparatus for controlling a process by generating qualitative analog process security data feedback comprising:

• timing means for defining four 6-hour daily periods;
• instrumentation means for obtaining a first set of qualitative analog process data for use in generating signal security data feedback providing process reliability and process quality criteria;
• means for sensing an interruption in continuity of said first set of obtained process data and determining an interval associated therewith, a plurality of said sensed interruption intervals defining I-criteria data representing said associated therewith, a plurality of said sensed process reliability criteria;
• means for sampling said first set of obtained process data during each of said four 6-hour daily periods;
• means for comparing said sampled first set of obtained process data with predetermined limit values defining a standard tolerance range, to determine deviations from said standard tolerance range, said deviations defining Q-criteria data representing said process quality criteria;
• storage means for storing said I and Q criteria data in accordance with said four 6-hour daily periods, as time history files, wherein each of said time history files comprises a rectangular matrix containing four group coded values each corresponding to one of said four 6-hour daily periods;
• and
• means for transferring said I and Q-criteria data in said time history files to a central local computer for performing optimal process control, said Q-criteria performing automatic process control In a central local regulator connected to said central local computer.