System and method for monitoring and analyzing energy characteristics

• US 5,216,623 A
• Filed: 06/06/1990
• Issued: 06/01/1993
• Est. Priority Date: 06/06/1990
• Status: Expired due to Fees

• Current Assignee: M T Mcbrian Incorporated
• Original Assignee: M T Mcbrian Company Incorporated
• Inventors: Mathey, John Jr., Barrett, Michael R.
• Primary Examiner(s): Harvey, Jack B.
• Assistant Examiner(s): PIPALA, EDWARD J
• Application Number:
  US07/534,138
• Time in Patent Office: 1,091 Days
• Field of Search: 364/505, 364/506, 364/492, 364/483, 364/550, 364/551.01, 364/464.04, 364/557, 364/558, 364/571.04, 361/399, 361/413, 361/424, 374/100, 374/102, 374/141, 340/825.06, 340/870.03, 340/870.21, 340/870.27
• US Class Current: 702/62
• CPC Class Codes: G01F 15/063 using electrical means
• CPC Class Codes: G01F 15/0755 involving digital counting
• CPC Class Codes: G01R 1/206 Switches for connection of measuring instruments or electric motors to measuring loads switches in general H01H
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: G06Q 50/06 Energy or water supply

Abstract

A system for monitoring various, diverse energy characteristics of an energy consuming system. The system includes a data gathering device that accumulates data representing each of the sensed energy characteristics in real time, the data representing magnitude of the sensed energy characteristic as well as the time at which the magnitude is sensed. The data that is accumulated for each of the sensed energy characteristics is periodically transmitted to a remote analysis station. The remote analysis station performs a detailed analysis of the sensed energy characteristics and generates reports containing summaries of the sensed data in the form of listings of compressed data as well as graphs such as histograms and graphs correlating different energy characteristics of the energy consuming system.

Claims

1. A system for monitoring a plurality of energy characteristics of an energy consuming system, comprising:

a plurality of sensor means each for sensing an energy characteristic of said energy consuming system to provide a data output through an output connector, said plurality of sensor means having a plurality of different data output types and each of said data output connectors having a plurality of pins keyed to said different sensor data output types; and

means for gathering data output from each of said sensor means, said data gathering means having;

a plurality of input connectors, each input connector being matable with any one of the output connectors of said plurality of sensor means;

an input circuit associated with each of said input connectors for normalizing said different sensor data output types to provide data of a standard type, each of said input circuits having a circuit portion associated with each different sensor data output type, each circuit portion being connectable through said associated input connector with the sensor output connector pins keyed to the sensor data output type of said circuit portion.

2. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein a plurality of said sensor means output connector pins are keyed to sensor data outputs of different analog types and said data gathering means further includes an analog to digital converter and a plurality of selection means each associated with an input connector and settable to one of a plurality of settings representing said plurality of sensor data output types for coupling the portion of said input circuit associated with a particular analog sensor data output type to said analog to digital converter.

3. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein said data gathering means gathers data from each of said plurality of sensor means in real time.

4. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein said data gathering means includes:

means for sampling the data output from each of said sensor means a predetermined number of times over a predetermined time period;

means for averaging the data output sampled from a sensor over said predetermined period of time; and

means for storing said averaged data for said sensor.

5. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein each of said input circuits includes an input circuit portion for receiving a sensor data output that varies between zero and five volts.

6. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein each of said input circuit means includes an input circuit portion for receiving a sensor data output that varies between zero and ten volts.

7. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein each of said input circuit means includes an input circuit portion for receiving a sensor data output that varies between four and twenty milliamps.

8. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein each of said input circuit means includes an input circuit portion for receiving a sensor data output that varies between zero and one hundred milli-volts.

9. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 wherein each of said input circuit means includes a circuit portion that receives digital sensor data output.

10. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 1 further including:

means for sampling said sensor output data;

means for storing data representing the sampled output data from each of said plurality of sensor means; and

means for transmitting said stored data to a remote location.

11. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 10 further including:

means for receiving said sensor data at said remote location; and

means for analyzing said received sensor data at said remote location.

12. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 11 wherein said analyzing means includes means for combining the received data from two or more sensors two derive data representing an additional energy characteristic of said energy consuming system.

13. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 11 wherein said analyzing means includes means for converting said received data into standard units of measure.

14. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 13 further including means coupled to said sensor data receiving means at said remote location for displaying a representation of said converted data.

15. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 13 further including means for printing a representation of said converted data.

16. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 13 further including means for averaging the converted data associated with a sensor over a predetermined period of time to condense said data for said sensor.

17. A system for monitoring a plurality of energy characteristics of an energy consuming system comprising:

at least one sensor means for sensing pressure in said energy consuming system to provide an output representative thereof;

at least one sensor means for sensing temperature in said energy consuming system to provide an output representative thereof;

at least one sensor means for sensing an electrical characteristic of said energy consuming system to provide an output representative thereof;

means for accumulating data representing the outputs of each of said sensor means associated with a particular time; and

means for correlating for a particular time said pressure, temperature and electrical characteristic data accumulated for each of said sensors to provide an integrated analysis of said accumulated data.

18. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 17 wherein said correlating means is located remotely from said data accumulation means and further including means for transmitting said accumulated data to said correlating means, said correlating means including means for receiving transmitted data from said transmitting means.

19. A system for monitoring a plurality of energy characteristics of an energy consuming system comprising:

at least one sensor means for sensing a flow rate in said energy consuming system to provide an output representative thereof;

at least one sensor means for sensing temperature in said energy consuming system to provide an output representative thereof;

at least one sensor means for sensing an electrical characteristic of said energy consuming system to provide an output representative thereof;

means for accumulating data representing the outputs of each of said sensor means associated with a particular time; and

means for correlating for a particular time said flow rate, temperature and electrical characteristic data accumulated for each of said sensors to provide an integrated analysis of said accumulated data.

20. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 19 wherein said correlating means is located remotely from said data accumulation means and further including means coupled to said data accumulation means for transmitting said accumulated data to said correlating means, said correlating means including means for receiving transmitted data from said transmitting means.

21. A system for monitoring a plurality of energy characteristics of an energy consuming system comprising:

at least one sensor means for sensing pressure in said energy consuming system to provide an output representative thereof;

at least one sensor means for sensing a temperature in said energy consuming system to provide an output representative thereof;

at least one sensor means for sensing a flow rate of said energy consuming system to provide an output representative thereof;

means for accumulating data representing the outputs of each of said sensor means associated with a particular time; and

means for correlating for a particular time said pressure, temperature and flow rate data accumulated for each of said sensors to provide an integrated analysis of said accumulated data.

22. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 21 wherein said correlating means is located remotely from said data accumulation means and further including means coupled to said data accumulation means for transmitting said accumulated data to said correlating means, said correlating means including means for receiving transmitted data from said transmitting means.

23. A system for monitoring an energy characteristic of an energy consuming system comprising:

means for sensing an energy characteristic of said energy consuming system to provide an output representative of said sensed energy characteristic;

means for accumulating data from said sensor means over a week, said data representing the magnitude of the output of said sensor means on a particular day of the week at a particular time of day; and

means responsive to said data accumulation means for determining the most representative day of the week in terms of said sensed energy characteristic.

24. A system for monitoring an energy characteristic of an energy consuming system as recited in claim 23 wherein said means for accumulating data includes

means for sampling the output of said sensor means a predetermined number of times over an interval of approximately one minute;

means for averaging said data sampled over said one minute interval to provide a value representing the magnitude of said sensor output at said one minute interval;

means for storing each of said one minute interval values; and

means for compressing said one minute interval values into data representing the magnitude of the output of said sensor means at thirty minute time intervals.

25. A system for monitoring an energy characteristic of an energy consuming system as recited in claim 23 wherein said most representative day determining means includes variance determine means for determining the variance in magnitude of the output of said sensing means for each different pair of days of the week to determine which days of the week are related in magnitude.

26. A system for monitoring an energy characteristic of an energy consuming system as recited in claim 23 wherein said most representative day determining means includes shape determining means for performing a statistical shape comparison of the outputs of said sensing means for each different pair of days of the week to determine which days of the week are related in terms of the shape of the output of the sensing means.

27. A system for monitoring an energy characteristic of an energy consuming system as recited in claim 23 further including means for providing a graphical output representing the output of said sensing means accumulated for the most representative day of the week.

28. A system for monitoring an energy characteristic of an energy consuming system comprising:

means for sensing an energy characteristic of said energy consuming system to provide an output representative of said sensed energy characteristic;

means for accumulating data from said sensing means over a period of time, said data representing the magnitude of the output of said sensing means at a particular time of day;

means for grouping said data according to magnitude;

means for grouping said magnitude grouped data into a plurality of time intervals during which said sensor outputs of said particular magnitudes occurred; and

means for providing a graphical representation of said data representing the percentage of total time that said sensor output had a particular magnitude during a particular time interval.

29. A method for monitoring a plurality of energy characteristics of an energy consuming system comprising the steps of:

sensing a plurality of diverse energy characteristics of said energy consuming system to provide outputs representative thereof;

periodically sampling each of said sensor outputs to provide data representing the magnitude of said sensor outputs at a particular time;

accumulating said sampled data for each of said sensor means;

transmitting said accumulated data for each of said sensor means to a remote location;

receiving said transmitted data at said remote location; and

analyzing said received data at said remote location, said analyzing including statistically correlating the data representing a plurality of said sensed, diverse energy characteristics.

30. The method of monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 29 wherein said sampling step includes the steps of averaging the data output sampled for an energy characteristic over a predetermined period of time to provide an average value associated with said predetermined period of time;

and storing said average value to provide said data representing the magnitude of said sensed energy characteristic at said particular time.

31. A method for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 29 wherein said analyzing step includes the step of converting said data into standard units of measure.

32. A method for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 29 wherein said analyzing step includes the step of combining data representing a plurality of energy characteristics sensed at a particular time to derive data representing an additional energy characteristic of said energy consuming system at said particular time.

33. A system for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 29 wherein said analyzing step further includes the steps of compressing said data for a sensed energy characteristic;

and generating a printed report representing said compressed data.

34. A method for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 33 wherein said step of generating said report includes the step of generating a graphical representation of said compressed data.

35. A method for monitoring a plurality of energy characteristics of an energy consuming system as recited in claim 29 further including the step of generating a histogram representing the analyzed data of a sensed energy characteristic.