Control apparatus and control method for managing communications between multiple electrical appliances through a household power line network
First Claim
1. A control apparatus for managing communications between a plurality of electric appliances connected to a household power line network, comprising;
- a power line communicator that transmits a plurality of types of modulation method control signals to each of a plurality of electric appliances, each type of control signals utilizing a different modulation method;
a controller that receives a response from each electric appliance, detects to which type of modulation method control signal said response is made, and judges the type of the modulation method that is utilized in each electric appliance based on said detection.
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Abstract
The present invention relates to a control apparatus for managing communications between a plurality of electric appliances connected to a household power line network. The apparatus transmits a plurality of types of modulation method control signals to each of the plurality of electric appliances, each type of control signal utilizing a different modulation method. When receiving a response from each electric appliance, the apparatus detects to which type of modulation method control signal the response was made and judges the type of the modulation method that is utilized in each electric appliance based on the detection.
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Citations
16 Claims
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1. A control apparatus for managing communications between a plurality of electric appliances connected to a household power line network, comprising;
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a power line communicator that transmits a plurality of types of modulation method control signals to each of a plurality of electric appliances, each type of control signals utilizing a different modulation method;
a controller that receives a response from each electric appliance, detects to which type of modulation method control signal said response is made, and judges the type of the modulation method that is utilized in each electric appliance based on said detection. - View Dependent Claims (2)
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3. A control apparatus for managing communications between a plurality of electric appliances connected to a household power line network, comprising;
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a power line communicator that receives modulation method control signals from multiple electric appliances;
a controller that detects shift points of the carrier wave of said modulation method control signals, that judges, based on an interval of said shift points, which type of modulation method is utilized in each electric appliance and that stores the type of modulation method utilized in each electric appliance. - View Dependent Claims (4, 5)
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6. A control apparatus for managing communications between a plurality of electric appliances connected to a household power line network, comprising;
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a memory that stores information regarding which type of modulation method is utilized in each electric appliance;
a power line communicator that receives a modulation method control signal from a first electric appliance and transmits a modulation method control signal to a second electric appliance;
a controller that compares the type of modulation method of the first electric appliance with the type of modulation method of the second electric appliance, and converts the type of the modulation method control signal of the first electric appliance into the type of the modulation method control signal of the second electric appliance when the type of modulation method utilized in the first electric appliance is different from that of the second electric appliance. - View Dependent Claims (7, 8)
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9. A control method for managing communications between a plurality of electric appliances connected to a household power line network, comprising:
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transmitting a plurality of types of modulation method control signals to each of plurality of electric appliances, each type of modulation method control signal utilizing a different modulation method;
receiving a response from each electric appliance;
detecting to which type of modulation method control signal said response is made;
judging the type of the modulation method that is utilized in each electric appliance based on said detection. - View Dependent Claims (10)
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11. A control method for managing communications between a plurality of electric appliances connected to a household power line network, comprising:
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receiving modulation method control signals from a plurality of electric appliances;
detecting the shift points of the carrier wave of the modulation method control signals;
judging, based on the interval of said shift points, which type of modulation method is utilized in each electric appliance;
storing the type of modulation method utilized in each electric appliance. - View Dependent Claims (12, 13)
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14. A control method for managing communications between a plurality of electric appliances connected to a household power line network, including a memory that stores information regarding which type of modulation method is utilized in each electric appliance, comprising:
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receiving a modulation method control signal from a first electric appliance, said modulation method control signal to be sent to a second electric appliance;
comparing the type of modulation method of the first electric appliance with the type of modulation method of the second electric appliance;
converting the type of the modulation method control signal of the first electric appliance into the type of the modulation method control signal of the second electric appliance when, based on a result of the comprising, the type of modulation method utilized in the first electric appliance is different from that of the second electric appliance;
transmitting said converted modulation method control signal to the second electric appliance. - View Dependent Claims (15, 16)
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Specification