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Power supply control method, power supply control system and computer program product
| Details |
Inventors: Saito, Takeshi; Kamagata, Eiji; Kamatani, Yukio; Takabatake, Yoshiaki;
Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP)
Primary Examiner: Grant; William
Assistant Examiner: Garland; Steven R.
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
In supplying power to a plurality of electric apparatuses connected to a power line having a predetermined maximum consumable power, a power consumption of the power line is measured as a first power consumption. When a second power consumption predetermined in each of the electric apparatuses is told, a sum of the second power consumption and the first power consumption of the power line is compared with the predetermined maximum consumable power of the power line, and it is determined whether the second power consumption by the electric apparatus is permissible. A result of the determination is told to the electric apparatuses. |
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DETAILED DESCRIPTION OF THE INVENTION (First Embodiment) FIG.
1 shows an example of the entire structure of a power supply control system according to a first embodiment of the present invention.
This power supply control system constitutes a communication network comprising a power line network for supplying power to electric apparatuses provided within a private area or a residence.
In the following description, it is supposed that the power supply control system is constructed within the residence.
The power supply control system shown in FIG.
1 comprises a circuit breaker apparatus (hereinafter referred to as "breaker apparatus") 101, a power line 102, outlets 103A to 103D, electric apparatuses (e.
g.
iron 104, air-conditioner 105, electronic oven 106), and an external power line 107.
The breaker apparatus 101 is connected between the external power line 107 from an electric power company and the power line 102 within the residence.
The breaker apparatus 107 monitors the power consumption within the residence so that it may not exceed a predetermined value.
If the power consumption exceeds the predetermined value, the breaker apparatus 101 performs the functions of stopping the power supply, keeping a log of power consumption, and executing specific processes, determination and notification in response to power use permission requests from the electric apparatuses connected to the power line network.
The power line 102 supplies power to each electric apparatus.
Digital data is transmitted among the electric apparatuses connected to the power line 102, with the power line 102 used as media.
The outlets 103A to 103D are connected to the power line 102, and power is supplied to the household electric apparatuses via the outlets 103A to 103D.
The outlets 103A to 103D serve also as input/output (I/O) ports of data to/from the power line 102.
FIG.
1 shows, as examples of electric apparatuses, the iron 104, air-conditioner 105 and electronic oven 106; however, the electric apparatuses are not limited to these
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