Title:
DEMAND CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3570610
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable smooth and rational unattended control when a total demand reaches a set value for an alarm level which is lower than a limiting value, by sequentially and suppressively controlling the operation of equipment.
SOLUTION: A pulse detector 3 receives pulses from a demand meter 2, calculates the current amount of demand in a specified cycle t, inputs the data into a numerical value conversion portion 4 and causes the data to be recorded sequentially. Based on the recorded demand data, the numerical value conversion portion 4 calculates the data required for control and transfers it to a calculation control portion 6. Based on the data obtained from a equipment status operation recording portion 9, the calculation control portion 6 selects the pieces of equipment in operation the main power supply to which is presently on, and creates a list of equipment, wherein the pieces of equipment are arranged in the order of the degree of interrupt permissibility while various conditions are taken into account. Then, based on the demand data received from the numerical value conversion portion 4, the calculation control portion 6 selects the pieces of equipment in higher order from the equipment list as necessary, and turns off the power to the main power supply. As a result, the equipment can be surely automatically controlled completely without persons attending it.
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Inventors:
Yoshio Obuse
Application Number:
JP18087398A
Publication Date:
September 29, 2004
Filing Date:
June 26, 1998
Export Citation:
Assignee:
Parcosmo Co., Ltd.
International Classes:
H02J13/00; G05B9/02; G05B21/02; H02J3/00; (IPC1-7): H02J3/00; G05B9/02; G05B21/02; H02J13/00
Domestic Patent References:
| JP57106339A | ||||
| JP9261863A | ||||
| JP8186932A |
Attorney, Agent or Firm:
Shotaro Mogami
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