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US 2015/0316592 A1Published application
Electric device identification system, electric device, and electric device identification method
AssigneeMitsubishi Electric Corporation
InventorsSatoshi MINEZAWA, Masaaki YABE, Hirotoshi YANO
Life of this patent
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Abstract
A device load consumes power supplied from an AC power supply. A bypass circuit is provided in parallel with the device load. A controller controls current flowing through the bypass circuit so that an identification signal indicating information for identifying an electric device is superimposed on current flowing from the AC power supply to the electric device. A power measurement sensor detects the current flowing from the AC power supply to the electric device. A control device identifies the electric device based on the identification signal superimposed on the current detected by the power measurement sensor.
Claims8
An electric device identification system comprising:
- an electric device comprising:
- a device load configured to consume electric power supplied from a power supply;
- a load circuit disposed in parallel with the device load;
- and
- a controller configured to control electric current flowing in the load circuit, so that an identification signal indicating information for identifying the electric device is superimposed on electric current flowing to the electric device from the power supply;
- an electric current sensor is configured to detect the electric current flowing to the electric device from the power supply;
- and
- an identification apparatus configured to identify the electric device based on the identification signal superimposed on the electric current detected by the electric current sensor, wherein
- the device load comprises an inverter circuit, and
- the load circuit is configured to control electric power supplied to the inverter circuit for improving a power factor in the device load.
7 more elements
An electric device identification system comprising:
- an electric device comprising:
- a device load configured to consume electric power supplied from a power supply;
- a load circuit disposed in parallel with the device load;
- and
- a controller configured to control electric current flowing in the load circuit, so that an identification signal indicating information for identifying the electric device is superimposed on electric current flowing to the electric device from the power supply, and the controller is further configured to, after a random time period has passed, start control for the superimposing of the identification signal;
- an electric current sensor configured to detect the electric current flowing to the electric device from the power supply;
- and
- an identification apparatus configured to identify the electric device based on the identification signal superimposed on the electric current detected by the electric current sensor.
5 more elements
An electric device identification system comprising:
- multiple electric devices, each electric device comprising:
- a device load configured to consume electric power supplied from a power supply;
- a load circuit disposed in parallel with the device load;
- a determiner configured to determine a timing for the start of control for superimposing an identification signal so that control for superimposing the identification signal is contained in one period out of multiple periods partitioned by equal intervals, the identification signal indicating information for identifying a local electric device among the multiple electric devices;
- and
- a controller configured to control electric current flowing in the load circuit, so that the identification signal is superimposed on electric current flowing to the local electric device from the power supply, and the controller is further configured to start control for superimposing the identification signal with the timing determined by the determiner,
- an electric current sensor configured to detect a total electric current flowing to the multiple electric devices from the power supply, and
- an identification apparatus configured to identify the multiple electric devices based on the identification signal superimposed on the total electric current detected by the electric current sensor.
5 more elements
An electric device comprising:
- a device load configured to consume electric power supplied from a power supply;
- a load circuit disposed in parallel with the device load;
- and
- a controller configured to control electric current flowing in the load circuit, so that an identification signal indicating information for identifying the electric device is superimposed on electric current flowing to the electric device from the power supply, wherein
- the device load comprises an inverter circuit, and
- the load circuit is configured to control electric power supplied to the inverter circuit for improving a power factor in the device load.
3 more elements
An electric device identification method comprising:
- controlling electric current flowing in a load circuit, so that an identification signal indicating information identifying an electric device is superimposed on electric current flowing to the electric device from a power supply, the electric device comprising a device load including an inverter circuit and configured to consume electric power supplied from the power supply, and a load circuit disposed in parallel with the device load and configured to control electric power supplied to the inverter circuit for improving a power factor in the device load;
- detecting the electric current flowing to the electric device from the power supply;
- and
- identifying the electric device, based on the identification signal superimposed on the detected electric current.
1 more element
Dependencies are inferred from the claim text.