Operation state determination system and program

• US 10,326,304 B2
• Filed: 09/18/2014
• Issued: 06/18/2019
• Est. Priority Date: 12/10/2013
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Shimizu, Noriyoshi, Nishiyama, Takashi
• Primary Examiner(s): Tran, Thienvu V
• Assistant Examiner(s): Stables, David M
• Application Number:
  US15/100,005
• Publication Number:
  US 20170018962A1
• Time in Patent Office: 1,734 Days
• Field of Search: None
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: G06Q 50/06 Energy or water supply

Abstract

An operation state determination system includes a receiver, a first memory and a determiner. The determiner is configured to compare, at a prescribed determination time point, a power value stored in the first memory with a reference value to determine whether or not an electric load connected to a branch circuit is in operation, and output a signal in accordance with a determination result. The determiner is further configured to determine that the electric load is in operation at the prescribed determination time point, when a time period during which the power value is equal to or more than the reference value occurs within a comparison time in past before the prescribed determination time point.

Claims

1. An operation state determination system, comprising:

a receiver configured to acquire, from a meter, power values respectively consumed through two or more branch circuits branched in a distribution board installed in a facility of a power consumer;

a first memory configured to store power information that includes a power value per branch circuit, acquired by the receiver, in association with date and time; and

a determiner configured to compare, at a prescribed determination time point, the power value stored in the first memory with a reference value to determine whether or not an electric load connected to a branch circuit corresponding to the power value, of the two or more branch circuits, is in operation, and output a signal in accordance with a determination result,

the determiner being configured to determine that the electric load is in operation at the prescribed determination time point, when a time period during which the power value is equal to or more than the reference value occurs at least once within a comparison time in past before the prescribed determination time point.

2. The operation state determination system according to claim 1, further comprising a setter configured to variably set the reference value and the comparison time.

3. The operation state determination system according to claim 2, Wherein the setter is configured to set the reference value and the comparison time in units of the two or more branch circuits.

4. The operation state determination system according to claim 3, wherein the setter is configured to:

calculate a standby power value per branch circuit based on the power value stored in the first memory; and

adjust the reference value with the standby power value as an offset value.

5. The operation state determination system according to claim 1, further comprising an interface configured to receive an operation content of another system,

wherein the determiner is configured to:

set timing when the interface receives the operation content of the another system to the prescribed determination time point; and

determine, at the timing, whether or not the electric load is in operation.

6. The operation state determination system according to claim 1, further comprising a controller configured to change an operation state of the electric load to a non-operation state by remote control.

7. The operation state determination system according to claim 6, further comprising a selector configured to select a certain electric load to be prohibited from changing an operation state of the certain electric load to a non-operation state,

wherein the controller is configured not to change, to the non-operation, the operation state of the certain electric load to be prohibited from changing to the non-operation state, selected by the selector, of electric loads that are determined to be in operation by the determiner.

8. The operation state determination system according to claim 1, further comprising an outputter configured to output the determination result obtained by the determiner to a presenting device.

9. The operation state determination system according to claim 1, further comprising a second memory configured to store the determination result obtained by the determiner.

10. A computer-readable recording medium recording a program for causing a computer to function as the operation state determination system according to claim 1.