JP2011223841A - Power supply system and network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system which controls supply of power to an electric apparatus before actual occurrence of thunder, earthquake, typhoon, etc. by previously obtaining forecast information on the thunder, earthquake, typhoon, etc. from a network, and to provide a network system.SOLUTION: The power supply system comprises: a main power supply unit 48 connected to a commercial power supply 52 and supplying power to a load; an auxiliary power supply unit 49 which when the main power supply unit 48 stops, supplies power to the load in place of the main power supply unit 48; a switch unit 47 switching a power supply source to the load between the main power supply unit 48 and the auxiliary power supply unit 49; and a control unit 41 which is connected to a wide area network or a home network 5, determines whether information obtained from either of the networks contains forecast about the weather or earthquake, and controls the switch unit 47 on the basis of the determination.

Description

  The present invention relates to a power supply system and a network system for controlling the power supply of various electrical devices installed in a house before a disaster occurs when disaster forecast information such as lightning, earthquake, typhoon, etc. is acquired from a network.

  A home electric device is equipped with a control device that performs processing to stop power supply when a power supply abnormality that causes the electric device to fail occurs. However, if a lightning surge occurs due to a sudden lightning strike, that is, if the voltage of the commercial power supply changes suddenly, the process of stopping the power supply is not in time, so that the electrical equipment fails, and not only that, An accident may occur. In addition, when an earthquake occurs, a house shakes greatly, and an electric device receiving power from a commercial power supply may fall or fall from a high place, resulting in electric leakage or fire.

  On the other hand, Patent Document 1 is a power supply system in which lightning countermeasures are taken, and a lightning detector that detects the occurrence of lightning at a long distance and a close distance, and a battery are built in, and power is supplied from the battery to a load at the time of a power failure. A power supply system with an uninterruptible power supply is described. In this power supply system, when a lightning detector detects a lightning in a distant location, the power generator is started to generate power, and when a lightning in close range is detected, the power supply of the main power input unit is interrupted by a circuit breaker. The system switch supplies the output voltage of the power generator to the uninterruptible power supply, and supplies the power from the power generator to the load. Thus, the power supply system described in Patent Document 1 is provided with a lightning detector that detects the occurrence of lightning, thereby reducing damage caused by lightning surges.

JP 2005-245190 A

  However, in the power supply system described in Patent Document 1, the power supply is instantaneously interrupted when the lightning detector detects the occurrence of lightning. That is, this power supply system performs control to cut off the power supply after lightning actually occurs. Therefore, it is not always sufficient from the viewpoint of preventing a disaster such as a failure of electrical equipment due to the occurrence of lightning or a fire accident caused by the failure.

  The present invention has been made in view of such circumstances. The purpose of the present invention is to obtain lightning, earthquake, typhoon and other forecast information from the network in advance, before lightning, earthquake, typhoon, etc. actually occur. It is an object of the present invention to provide a power supply system and a network system that control power supply to electric equipment.

  The power supply system of the present invention includes a main power supply unit connected to a commercial power supply, an auxiliary power supply unit charged by the main power supply unit, and switching for switching between power supply by the main power supply unit and the auxiliary power supply unit. A power supply system comprising: an acquisition unit that is connected to a network and acquires disaster forecast information related to weather or an earthquake from the network; and the disaster prediction information related to a predetermined region is included in the disaster prediction information acquired by the acquisition unit A control unit that determines whether or not the switching unit is included and controls the switching unit based on a determination result.

  In the present invention, it is possible to control power supply to an electrical device before a lightning, earthquake, typhoon, or the like actually occurs by acquiring a weather or earthquake-related forecast in advance from the network.

  In the power supply system of the present invention, when the control unit determines that the disaster prediction information includes disaster prediction information related to the predetermined area, the switching unit supplies the power supply from the main power supply unit to the disaster prediction information. It is characterized by switching to the auxiliary power supply unit.

  In the present invention, the power supply source to the load can be switched from the main power supply unit to the auxiliary power supply unit before lightning, earthquake, typhoon or the like actually occurs.

  In the power supply system of the present invention, the acquisition unit acquires the disaster forecast information from the network at a specified interval or a specified time.

  In the present invention, since the forecast information is obtained at least at the designated interval or the designated time, the latest forecast information can be obtained.

  The network system of the present invention is a network system in which a server distributes disaster forecast information related to weather or earthquake to a client through a network. The client is charged by a main power source connected to a commercial power source and the main power source. The auxiliary power supply unit, the switching unit that switches the power supply by the main power supply unit and the auxiliary power supply unit to any one, and the disaster forecast information distributed from the server includes disaster forecast information related to a predetermined area A controller that controls the switching unit based on a determination result, and the controller determines that the disaster forecast information includes disaster forecast information related to the predetermined area In this case, the switching unit is configured to switch the power supply from the main power supply unit to the auxiliary power supply unit. That.

  In the present invention, various electrical devices connected to the network supply power to the load when there is a risk of lightning, earthquakes, typhoons, etc. based on weather or earthquake forecasts acquired from the server. The source can be switched from the main power supply to the auxiliary power supply.

  The network system of the present invention is a network system in which a server distributes disaster forecast information related to weather or earthquake to a client through a network, wherein the client supplies power to the outside, and the disaster distributed from the server Determination means for determining whether or not disaster forecast information related to a predetermined area is included in the forecast information, and the determination means determines that the disaster prediction information includes disaster forecast information related to the predetermined area In this case, the supply means includes means for cutting off power supplied to the outside.

  In the present invention, in order to stop or supply power in the circuit breaker based on disaster forecast information related to a predetermined area, for example, all the lights in the household before lightning actually occurs. The power supply to the electrical equipment can be stopped collectively.

  According to the present invention, disaster forecast information such as lightning, earthquake, and typhoon is acquired from the network in advance, and power control is performed based on the acquired disaster forecast information. Therefore, before lightning, earthquake, typhoon, etc. actually occur. Shut off the power supply from the commercial power supply to the electrical equipment. Therefore, it is possible to prevent the breakdown, fire, electric leakage, etc. of the electrical equipment at the time of disaster.

It is a block diagram which shows the structural example of the system which concerns on power supply control. It is a block diagram which shows the hardware structural example of a disaster forecast information delivery server. It is a block diagram which shows the function structural example of a disaster forecast information delivery server. It is a block diagram which shows the hardware structural example of a home server. It is a block diagram which shows the outline of a function structure of a home server. It is a block diagram which shows the structural example of a network household appliance. It is a flowchart which shows the flow of the power supply control of a network household appliance. It is a block diagram which shows typically the whole structure of the domestic electric power feeding system using the circuit breaker which has a network function. It is a block diagram which shows the structural example of the circuit breaker for wiring. It is a flowchart which shows the flow of the power supply control of the circuit breaker for wiring. It is explanatory drawing which shows the schedule table registered into the home server. It is a block diagram which shows the structural example which adjusts the gain of a reception booster or the volume of a television, and the brightness | luminance of an image according to the instruction | indication from a home server. It is a block diagram which shows the structural example which switches a wired LAN and wireless LAN according to the instruction | indication from a home server.

Hereinafter, embodiments will be specifically described with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration example of a system related to power control.
The system 1 includes a disaster forecast information distribution server 2, a home server 3, a network home appliance 4, a home network 5, and a wide area network 6.

  The disaster forecast information distribution server 2 and the home server 3 exchange data with each other via the wide area network 6, and the home server 3 and the network home appliance 4 exchange data with each other via the home network 5. The wide area network 6 is, for example, the Internet network. The home network 5 is a wireless LAN or a wired LAN. Note that the home server 3, the network home appliance 4, and the home network 5 are provided in the house 7. The network home appliance 4 corresponds to a client for the home server 3.

The disaster forecast information distribution server 2 is a server that provides forecast information related to weather such as lightning and typhoons and prediction information about earthquake occurrence. For example, the Meteorological Agency that provides nationwide information or a private forecast company that provides local information Is a server operated by. The private forecasting company shall distribute weather forecast information and earthquake forecast information based on meteorological information and earthquake early warning provided by the Japan Meteorological Agency. Immediately after the occurrence of the earthquake, the Japan Meteorological Agency analyzes the observation data captured by the seismic observation device close to the epicenter and immediately determines the location of the epicenter and the magnitude (magnitude) of the earthquake, and based on this, the arrival time and seismic intensity of each earthquake And distribute them to the network as earthquake early warnings.
In the following description, forecast information relating to weather such as lightning and typhoons and prediction information on occurrence of earthquakes are collectively referred to as “disaster forecast information”.

  The home server 3 is a computer installed in a general home. The home server 3 transmits and receives data to and from other servers via the wide area network 6, and network home appliances via the home network 5 provided in the house. 4 has a function of transmitting and receiving data to and from the terminal 4. The network home appliance 4 is an electric device having a function of acquiring various information from the home server 3 via the home network 5 by connecting to the home network 5. For example, the network home appliance 4 can be a television, a computer, an electromagnetic cooker, a refrigerator, an air conditioner, a hair dryer, a lighting device, an electric stove, or the like. Each network home appliance 4 is given an IP address.

  Further, the home server 3 constantly obtains disaster forecast information from the disaster forecast information distribution server 2 connected to the wide area network 6, and updates the already stored disaster forecast information. The home server 3 has a communication function with the disaster forecast information distribution server 2 and a communication function with the network home appliance 4 connected to the home network 5. Furthermore, the home server 3 recognizes the IP address assigned to the network home appliance 4 and controls the network home appliance 4.

  The network home appliance 4 in the present embodiment is normally energized from a commercial power source. However, when disaster forecast information is acquired from the home server 3 via the home network 5, the power supply is controlled by itself based on the acquired disaster forecast information. More specifically, the network home appliance 4 has an auxiliary power supply unit as a backup power source for a commercial power source. When an abnormality occurs in the commercial power source or when there is a possibility of an abnormality due to a disaster, the network home appliance 4 replaces the commercial power source. Receives power from the auxiliary power supply.

  The network home appliance 4 in the present embodiment recognizes in advance that events such as lightning, earthquake, and typhoon will occur by constantly acquiring disaster forecast information from the home server 3, and before these events occur Immediately switch the power supply source from the commercial power source to the auxiliary power source. This prevents the network home appliances 4 energized from the commercial power source from being damaged, leaking, or ignited by lightning, earthquake, typhoon, or the like.

  FIG. 2 is a block diagram illustrating a hardware configuration example of the disaster forecast information distribution server. FIG. 3 is a block diagram illustrating a functional configuration example of the disaster forecast information distribution server. As shown in FIG. 2, the disaster forecast information distribution server 2 includes a control unit 21 mainly composed of a CPU (Central Processing Unit), and a volatile memory composed of a RAM (Random Access Memory) as a main storage unit. 22, a non-volatile memory 23 composed of a ROM (Read Only Memory), an auxiliary storage device 25 such as a hardware disk or an optical disk, and a network module 26 connected to the wide area network 6 and controlling wide area network communication. Each component is connected to each other via a bus 27. The control unit 21 controls each component according to the computer program and data stored in the volatile memory 22, the non-volatile memory 23, or the auxiliary storage device 25, and controls the overall operation of the disaster forecast information distribution server 2.

  The disaster forecast information distribution server 2 includes a disaster forecast information generation unit 2a and a disaster forecast information distribution unit 2b. The disaster forecast information generation unit 2a generates disaster forecast information related to lightning, typhoons, earthquakes, etc. observed by the Japan Meteorological Agency or private weather companies. The disaster prediction information distribution unit 2b converts the disaster prediction information generated by the disaster prediction information generation unit 2a into XML (Extensible Markup Language) data and then distributes it to the wide area network 6.

  The disaster forecast information related to weather such as thunder and typhoon distributed to the wide area network 6 is information related to thunderstorms and typhoons that are expected to occur in the future. For example, thunderstorm or typhoon occurrence area, occurrence time, wind power, rainfall, etc. It is information about.

In addition, disaster forecast information related to earthquakes is information related to earthquakes that are expected to occur in the future. For example, predicted arrival times of earthquakes in each region, predicted seismic intensity in each region, epicenter, seismic intensity and magnitude (magnitude) in the epicenter, tsunami There is a possibility of occurrence of tsunami, an area where tsunami may occur.

The disaster forecast information distribution unit 2b distributes the above information in detail when occurrence of lightning, typhoon, earthquake, or the like is predicted.
FIG. 4 is a block diagram illustrating a hardware configuration example of the home server. As shown in FIG. 4, the home server 3 includes a control unit 31 mainly composed of a CPU, a volatile memory 32 which is a main storage unit composed of a RAM, a non-volatile memory 33 composed of a ROM, a hardware An auxiliary storage device 35 such as a wear disk or an optical disk, a network module 36 connected to the wide area network 6 and controlling wide area network communication, and a LAN module 37 connected to the home network 5 and controlling home network communication. Each component is connected to a bus 38. The control unit 31 controls each component according to the computer program and data stored in the volatile memory 32, the non-volatile memory 33, or the auxiliary storage device 35, and controls the operation of the home server 3.

  As shown in FIG. 4, one or a plurality of network home appliances 4 are connected to the home network 5, and these network home appliances 4 send and receive data to the home server 3 via the home network 5. Do.

FIG. 5 is a block diagram illustrating an outline of a functional configuration of the home server.
The home server 3 includes a disaster forecast information receiving unit 3a, a local disaster forecast information extracting unit 3b, and a local disaster forecast information distributing unit 3c. The disaster forecast information receiving unit 3 a acquires disaster forecast information from the disaster forecast information distribution server 2 via the wide area network 6. Next, the local disaster forecast information extraction unit 3b extracts local disaster forecast information described later from the acquired disaster forecast information. Next, the local disaster prediction information distribution unit 3 c distributes the extracted local disaster prediction information to the network home appliance 4 via the home network 5.

  The home server 3 extracts predetermined information from the disaster forecast information acquired from the disaster forecast information distribution server 2 and transmits the information to the network home appliance 4. The predetermined information is weather forecast information and earthquake forecast information of a local area around the site where the house 7 is built. For example, a weather forecast that a thunderstorm may occur in the area within minutes. Information or earthquake forecast information that an earthquake may occur within a few minutes in that area. This information is the local disaster forecast information described above. In other words, the local disaster forecast information is information regarding a range in which the home server 3 can communicate with the network home appliance 4 via the home network 5 such as a wired LAN or a wireless LAN.

  The local disaster forecast information is important information for ensuring the safety of the network home appliances 4 in the house 7. That is, since the disaster forecast information distributed from the disaster forecast information distribution server 2 covers information about the whole country, the information includes information on a region that is geographically far from the region where the house 7 is located. It is. Therefore, the local disaster forecast information extraction unit 3b, which is a function of the home server 3, extracts local disaster forecast information related to its own region from the comprehensive information. These processes can be performed by analyzing the XML data acquired from the disaster forecast information distribution server 2.

Note that information extracted by the home server 3 may be arbitrarily set by the administrator of the home server 3. For example, a setting for extracting only local disaster forecast information related to thunderstorms or a setting for extracting only local disaster forecast information when the predicted seismic intensity of an earthquake is 4 or more may be performed. In this way, the user of the home server 3 himself / herself defines a risk level corresponding to the risk of disaster and makes a setting according to that level, so that each network home appliance 4 has a safety function and the network home appliance 4 installed. The network home appliance 4 can be flexibly protected according to the earthquake resistance of the place or the house 7. For example, when the scale of a disaster is predicted to be small, local disaster forecast information is not provided for network home appliances 4 with high safety performance, but only for network home appliances 4 with low safety performance. Disaster forecast information may be provided.
Moreover, the network home appliance 4 may be directly connected to the wide area network 6 by giving the function of the home server 3 described above to the control unit of the network home appliance 4. In that case, a home system composed of the home server 3 and the home network 5 becomes unnecessary, and the network home appliance 4 directly acquires disaster forecast information from the disaster forecast information distribution server 2 via the wide area network 6.

FIG. 6 is a block diagram illustrating a configuration example of a network home appliance.
The network home appliance 4 is connected to a control unit 41 mainly composed of a CPU, a volatile memory 42 which is a main storage unit composed of a RAM, a non-volatile memory 43 composed of a ROM, and a home network 5. A LAN module 44 for controlling communication, an auxiliary storage device 45, a timer unit 46, a switching unit 47, a main power supply unit 48, an auxiliary power supply unit 49, and a power cable 50 with a power plug 51 are provided.

The network home appliance 4 is connected to the home network 5 and acquires local disaster prediction information from the home server 3. In addition, the network home appliance 4 is normally supplied with power from the commercial power supply 52 via the power cable 50 with the power plug 51 attached.
In the present embodiment, for example, a battery may be used as the auxiliary power supply unit 49.

  The network home appliance 4 is roughly composed of a power supply unit 60 and a main unit 61. The power supply unit 60 is a side that supplies power to the main body unit 61, and the main body unit 61 is a side that receives supply of power from the power supply unit 60. Here, the control unit 41 of the main unit 61 gives a switching signal 53 to the switching unit 47 of the power supply unit 60, and the switching unit 47 switches the power supply source to the main unit 61 in accordance with the switching signal 53. 54 is supplied.

The control unit 41 controls each component according to the computer program and data stored in the volatile memory 42, the non-volatile memory 43, or the auxiliary storage device 45, and controls the overall operation of the network home appliance 4.
The LAN module 44 receives local disaster forecast information from the home server 3 and passes it to the control unit 41.

  When the local disaster forecast information is acquired from the home server 3, the control unit 41 quickly gives the switching signal 53 to the switching unit 47. Next, the switching unit 47 that has received the switching signal 53 switches the power supply source from the main power supply unit 48 to the auxiliary power supply unit 49. That is, under the control of the control unit 41, the switching unit 47 interrupts the power supplied from the main power supply unit 48 to the main body unit 61 and supplies the power from the auxiliary power supply unit 49 to the main body unit 61.

  As described above, by allowing the user of the home server 3 to set the local disaster forecast information that the home server 3 provides to the network home appliance 4, the expected disaster level and the safety performance of the network home appliance 4 can be set. Switching is performed according to the above. That is, according to the expected degree of disaster and the level of safety performance of the network home appliance 4, whether or not the power supplied from the main power supply unit 48 to the main body unit 61 is switched and the power supply source is switched to the auxiliary power supply unit 49. Or not is determined.

  The timer unit 46 is an interval timer that generates an interrupt to the control unit 41 at a specified interval or a specified time. For example, the timer unit 46 generates an interrupt to the control unit 41 at intervals of 1 minute. The control unit 41 that receives an interrupt at 1 minute intervals controls the LAN module 44 to acquire local disaster forecast information from the home server 3 at 1 minute intervals, and stores the local disaster forecast information stored in the volatile memory 42. Update disaster forecast information. Thus, the timer unit 46 is used to measure the timing for updating the local disaster forecast information. When the control unit 41 determines that the disaster forecast has been canceled with reference to the updated local disaster forecast information, the control unit 41 switches the power supply source from the auxiliary power supply unit 49 to the main power supply unit 48. When the local disaster forecast information includes a message “disaster forecast is canceled”, it is determined that the disaster forecast has been canceled. In this embodiment, the time interval for acquiring the local disaster forecast information from the home server 3 is 1 minute, but the time interval is not limited to this. Moreover, the timing which acquires local disaster forecast information may be the time of the power supply of the home server 3 or the network household appliance 4 having been turned on.

FIG. 7 is a flowchart showing a flow of power control of the network home appliance.
The control unit 41 of the network home appliance 4 acquires local disaster forecast information from the home server 3 (S10).
The control unit 41 determines whether or not the “disaster forecast transmission” message is included in the acquired local disaster forecast information (S11).
When it is determined that the message “disaster forecast transmission” is included (S11: YES), the control unit 41 controls the switching unit 47 to cut off the power supply from the main power supply unit 48, The power supply source is switched from the main power supply unit 48 to the auxiliary power supply unit 49 (S12). On the other hand, when it is determined that the message “disaster forecast transmission” is not included (S11: NO), the control unit 41 waits for one minute (S17), and returns to the process of step S10.
The controller 41 waits for one minute after the process of step S12 (S13), and then acquires local disaster forecast information from the home server 3 (S14).
The control unit 41 determines whether the acquired “disaster prediction cancellation” message is included in the acquired local disaster prediction information (S15), and determines that the disaster prediction has been canceled (S15: YES). Then, the power supply source of the main body 61 is switched from the auxiliary power supply 49 to the main power supply 48, that is, the commercial power supply 52 (S16). Next, the control unit 41 waits for one minute (S17), and acquires local disaster forecast information from the home server 3 (S10). On the other hand, when it determines with the disaster forecast not being cancelled | released (S15: NO), the control part 41 waits for 1 minute (S13), and acquires local disaster forecast information from the home server 3 (S14). ).

As described above, when the local disaster forecast information acquired from the home server 3 includes the disaster forecast message, the control unit 41 of the network home appliance 4 generates an accident due to a lightning failure or an earthquake. Therefore, the power supply from the main power supply unit 48 is cut off, and the power supply source is switched from the main power supply unit 48 to the auxiliary power supply unit 49.
The network home appliance 4 acquires local disaster forecast information from the home server 3 at intervals of 1 minute in a state where power is supplied from the auxiliary power supply 49, and the disaster forecast of its own area has been canceled. If found, the power supply source of the main body 61 is switched from the auxiliary power supply 49 to the main power supply 48 again.

  According to the embodiment, since power control is performed based on the disaster forecast information, for example, power supply from the main power supply unit 48 can be safely cut off before lightning actually occurs. In the present embodiment, a dedicated sensor such as a lightning detector is not required.

Modification 1
In the embodiment, a power supply control function is provided in the network home appliance 4 to switch the power supply source. However, the embodiment is implemented in a wiring breaker (also referred to as a “breaker”) installed in the house 7. A power control function similar to that of the above embodiment may be provided. A circuit breaker is a circuit breaker that opens the circuit when an abnormal current flows in the circuit (load, circuit) on the secondary side due to an overload or short circuit, and shuts off the power supply from the primary side. It is a device used to avoid load circuits and electric wires from being damaged. By performing the same power supply control as in the embodiment in the circuit breaker for wiring, it is possible to collectively control the power supply of all the electric devices in the home.

FIG. 8 is a block diagram schematically showing the overall configuration of a home power supply system using a circuit breaker having a network function.
This system includes a home server 3, a circuit breaker 80 having a network function, an indoor wiring 81, a commercial power supply 52, a power cable 50, a LAN cable 84, a lead-in wire 85 from outside, a television 8a, a computer 8b, and an electromagnetic cooker. 8 c, refrigerator 8 d, air conditioner 8 e, hair dryer 8 f, lighting fixture 8 g, electric stove 8 h, and the like, and these electric devices 8 a to 8 h are installed in the house 7.

  The circuit breaker 80 for wiring is installed indoors and is connected to a lead-in wire 85 from the outside. An indoor wiring 81 laid indoors extends from the circuit breaker 80 for wiring, and a commercial power supply 52 is attached to each end of the indoor wiring 81. The commercial power supply 52 and the electric devices 8a to 8h are connected by a power cable 50. It is connected. Moreover, the circuit breaker 80 for wiring is connected to the home server 3 by the LAN cable 84, receives predetermined data from the home server 3, and performs power control according to the first modification according to the data.

FIG. 9 is a block diagram illustrating a configuration example of the circuit breaker for wiring.
The circuit breaker 80 for wiring includes a circuit breaker 90, a current detection unit 91, a control unit 92 mainly composed of a CPU, a volatile memory 93 composed of RAM, a nonvolatile memory 94 composed of ROM, and a circuit breaker for wiring. An input unit 95 and a LAN module 96 for making various settings for the device 80 are provided, and these are connected to each other via a bus 97. Further, the circuit breaker 80 includes a power receiving terminal 80a connected to the outdoor lead-in wire 85 and a power transmitting terminal 80b connected to the indoor wiring. Further, the circuit breaker 80 for wiring acquires local disaster forecast information from the home server 3 via the LAN module 96 and the LAN cable 84.

The interruption | blocking part 90 has a function which interrupts | blocks the electricity supply between the receiving terminal 80a and the power transmission terminal 80b. The current detection unit 91 detects a current value flowing between the power receiving terminal 80a and the power transmission terminal 80b.
The control unit 92 controls each component according to the computer program and data stored in the volatile memory 93 or the non-volatile memory 94 and controls the operation of the circuit breaker 80 for wiring. The control unit 92 controls the blocking unit 90 according to the local disaster forecast information acquired from the home server 3. Specifically, the controller 92 uses the LAN module 96 to acquire local disaster forecast information from the home server 3 at intervals of 1 minute, for example.

When the local disaster forecast information includes a “disaster forecast transmission” message, the control unit 92 promptly transmits a cutoff signal to the cutoff unit 90. As a result, power supply to all the electric devices 8a to 8h installed in the house 7 is stopped. The functions of the disaster forecast information distribution server 2 and the home server 3 and the contents of the local disaster forecast information are the same as in the embodiment.
On the other hand, the control unit 92 determines that the disaster prediction has been canceled when the local disaster forecast information includes a message “cancel the disaster forecast”, and outputs a blocking signal to the blocking unit 90. Transmission is stopped and power supply to all the electric devices 8a to 8h is restored.

FIG. 10 is a flowchart showing the flow of power control of the circuit breaker for wiring.
The control part 92 of the circuit breaker 80 for wiring acquires local disaster forecast information from the home server 3 (S20).
The control unit 92 determines whether or not the acquired “disaster forecast transmission” message is included in the acquired local disaster forecast information (S21).
When the control unit 92 determines that the “disaster forecast transmission” message is included in the local disaster forecast information (S21: YES), the control unit 92 transmits a blocking signal to the blocking unit 90, The power supply to all the electric devices 8a to 8h is collectively stopped (S22). On the other hand, when it is determined that the “disaster forecast transmission” message is not included in the local disaster forecast information (S21: NO), the control unit 92 waits for one minute (S27). ), The process returns to step S20.
After the process of step S22, the control unit 92 waits for one minute after stopping the power supply to the electric devices 8a to 8h (S23), and then acquires local disaster forecast information from the home server 3 (S24). ).
The control unit 92 determines whether or not the “disaster forecast cancellation” message is included in the acquired local disaster forecast information (S25), and when it is determined that the cancellation has been canceled (S25: YES), The transmission of the cutoff signal is stopped, and the power supply to all the electric devices 8a to 8h is restored (S26). Next, the control unit 92 waits for one minute (S27), and acquires local disaster forecast information from the home server 3 (S20). On the other hand, when it is determined that the disaster forecast has not been canceled (S25: NO), the control unit 92 waits for one minute (S23), and acquires local disaster forecast information from the home server 3 (S24).

In the first modification, since the power supply is stopped or switched in the circuit breaker 80 on the basis of the local disaster forecast information, for example, all the electric devices 8a in the home before lightning actually occurs. The power supply to ˜8h can be stopped collectively.
Note that the wiring breaker 80 may be directly connected to the wide area network 6 by providing the function of the home server 3 to the control unit 92 of the wiring breaker 80. In this case, the home server 3 becomes unnecessary, and the circuit breaker 80 for wiring directly acquires disaster forecast information from the disaster forecast information distribution server 2 via the wide area network 6.

Modification 2
In the second modification, in order to reduce the standby power of the network home appliance 4 in the home, the power of the network home appliance 4 in the residence is shut off while the resident of the general residence is out and is not at home. .
In the second modification, the resident registers the resident's schedule in the home server 3 in advance, and the home server 3 controls the power supply of the network home appliance 4 connected to the home server 3 in accordance with the schedule. .

FIG. 11 is an explanatory diagram showing a schedule table registered in the home server. In the schedule table, the resident absent period, that is, the date and time of going out and the date and time of returning home are registered. According to the schedule table, residents are at home from 9 am on April 1, 2010 to 19:00 on April 14, 2010 and from 10:00 on May 1, 2010 to 20:00 on May 5, 2010. Not done. The home server 3 refers to the schedule table as needed, and performs control to shut off the power supply of the predetermined network home appliance 4 while the resident is absent.
According to the modification 2, the power consumption in a house can be reduced by performing the power supply control according to the lifestyle of the resident.

Modification 3
The modification 3 takes the form which adjusts the reception booster which receives a broadcast wave, or the volume of a television, or the brightness | luminance of an image according to local disaster forecast information.
FIG. 12 is a block diagram illustrating a configuration example in which the amplification factor of the reception booster, the volume of the television, and the luminance of the image are adjusted according to an instruction from the home server.
First, the form which adjusts the reception booster 101 according to local disaster forecast information is demonstrated. In the form of adjusting the reception booster 101, the home server 3 and the reception booster 101 are connected via the home network 5.

In order for the television to receive a signal normally, it is first necessary that the level of the received signal is within a predetermined range at the input terminal. The reception booster 101 is a device that amplifies radio waves received by the antenna 100 in order to improve the appearance of television. The reception booster 101 has a function of adjusting the amplification factor of radio waves. On the other hand, in the case of heavy rain, it is necessary to increase the amplification factor of the reception booster 101 because the broadcast wave attenuates and the image on the television 8a deteriorates.
As shown in FIG. 12, the reception booster 101 is installed immediately below the antenna 100. The reception booster 101 sends a television signal to the television 8a via the television cable 102. On the other hand, the home server 3 that stores the local disaster forecast information sends a signal for adjusting the amplification factor to the reception booster 101 via the home network 5 and performs control to increase the amplification factor of the reception booster 101. As described above, in the third modification, since the amplification factor of the reception booster 101 is increased before heavy rain, it is possible to automatically maintain the quality of the television 8a even in heavy rain, which is convenient for the user. High nature.

Next, a mode of adjusting the volume of the television 8a or the brightness of the image according to the local disaster forecast information will be described with reference to FIG. In this embodiment, the home server 3 and the television 8a are connected via the home network 5.
When it is raining heavily or when a strong wind is blowing, the sound of the television may be difficult to hear or the room may become dark due to the influence of rain or wind noise. Therefore, in Modification 3, the home server 3 that stores the local disaster forecast information sends a signal for adjusting the volume or luminance to the television 8a, and performs control to increase the volume or to decrease the luminance.
According to the third modification, since the volume of the television 8a and the brightness of the image can be automatically adjusted before heavy rain or strong wind, it is highly convenient for the user.
Note that the reception booster 101 and the television 8a may be directly connected to the wide area network 6 by providing the functions of the home server 3 to the reception booster 101 and the television 8a. In that case, the home server 3 becomes unnecessary, and the reception booster 101 and the television 8a directly acquire the disaster forecast information from the disaster forecast information distribution server 2 via the wide area network 6.

Modification 4
In the fourth modification, the LAN connection format is changed according to the local disaster forecast information.
FIG. 13 is a block diagram illustrating a configuration example for switching between a wired LAN and a wireless LAN in accordance with an instruction from the home server.
When the wired LAN 39 is used in the house, excessive voltage is applied to the LAN cable due to electromagnetic waves when lightning passes nearby, and the network home appliances 4 connected to the LAN cable may break down. Therefore, in the modification 4, the home server 3 that stores the local disaster forecast information, when lightning is predicted, physically disconnects the wired LAN 39 and switches the connection type to the wireless LAN 40. Is provided. Other configurations are the same as those shown in FIG.
According to the fourth modification, it is possible to prevent damage to the network home appliance 4 due to lightning when using the wired LAN 39.

Modification 5
The fifth modification is a form in which various electrical devices acquire disaster forecast information using various broadcasts instead of network communication, unlike the above-described embodiments and modifications.
For example, an electrical device can detect a disaster from text information included in data broadcasting added to digital television broadcasting or one-segment broadcasting, caption information of analog broadcasting, digital television broadcasting or one-segment broadcasting, or text information of radio text multiplex broadcasting. It is a device that can acquire forecast information. Alternatively, the electrical device is a device that can receive an emergency alert broadcast.
One-segment broadcasting is digital terrestrial television broadcasting mainly targeted for receiving mobile phones. Data broadcasting is broadcasting that provides program-related information, news, text information such as weather information, or data such as still images for each channel. Character multiplex broadcasting is radio broadcasting or television broadcasting in which character information, graphic information, or program information is multiplexed on a broadcast signal. The emergency warning broadcast is a broadcast performed when a large-scale disaster occurs or when a tsunami warning is announced. When there is an emergency warning broadcast, the television or radio is automatically turned on to notify the warning.

In the modified example 5, the control unit included in the electrical device acquires disaster forecast information from the character information included in the various broadcasts described above, and automatically turns off the power of its own device based on the acquired disaster forecast information I do. Or in the modification 5, the control part of the electric equipment (except for a television apparatus and a radio) which received emergency alert broadcast may perform the process which turns off the power supply of an own apparatus automatically.
Although not shown, the electric device includes a control unit including a CPU, a volatile memory, a nonvolatile memory, and a broadcast receiving unit.
When using a television broadcast or a radio broadcast, the broadcast receiving unit of the electrical device receives the above-described various television broadcasts or radio broadcasts, extracts character information included in the broadcast, and sends the character information to the control unit. The control unit determines whether the character information includes disaster forecast information (for example, lightning warning) related to a preset area. If the character information includes the character information, Turn off. On the other hand, when using the emergency alert broadcast, when the broadcast receiving unit of the electrical equipment (excluding the television device and the radio) receives the emergency alert broadcast, the control unit turns off the power of the own device.

  It should be understood that the embodiment disclosed this time is illustrative in all respects and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

2 Disaster forecast information distribution server 3 Home server 4 Network appliance 5 Home network 6 Wide area network 7 House 2a Disaster forecast information generation unit 2b Disaster forecast information distribution unit 3a Disaster forecast information reception unit 3b Local disaster forecast information extraction unit 3c Local Disaster Forecast Information Distribution Department

Claims (5)

A power supply system comprising: a main power supply unit connected to a commercial power supply; an auxiliary power supply unit charged by the main power supply unit; and a switching unit that switches the power supply by the main power supply unit and the auxiliary power supply unit to one of them In
An acquisition unit connected to a network and acquiring disaster forecast information related to weather or earthquake from the network;
A controller configured to determine whether the disaster forecast information acquired by the acquisition unit includes disaster forecast information related to a predetermined region, and to control the switching unit based on the determination result. Power system.   When the control unit determines that the disaster prediction information includes disaster prediction information related to the predetermined area, the switching unit switches the power supply from the main power supply unit to the auxiliary power supply unit. The power supply system according to claim 1, wherein:   The power supply system according to claim 1, wherein the acquisition unit acquires the disaster forecast information from the network at a specified interval or a specified time. In a network system in which the server delivers disaster forecast information about weather or earthquakes to clients over the network,
The client
A main power supply connected to a commercial power supply;
An auxiliary power supply unit charged by the main power supply unit;
A switching unit that switches the power supply by the main power supply unit and the auxiliary power supply unit to either one;
A controller that determines whether or not disaster forecast information related to a predetermined area is included in the disaster forecast information distributed from the server, and that controls the switching unit based on a determination result, and
When the control unit determines that the disaster prediction information includes disaster prediction information related to the predetermined area, the switching unit switches the power supply from the main power supply unit to the auxiliary power supply unit. A network system characterized by In a network system in which the server delivers disaster forecast information about weather or earthquakes to clients over the network,
The client
Supply means for supplying power to the outside;
Determining means for determining whether or not disaster forecast information related to a predetermined area is included in the disaster forecast information distributed from the server;
A network system comprising: a means for cutting off the electric power supplied to the outside by the supply means when the determination means determines that the disaster prediction information includes disaster prediction information relating to a predetermined area; .

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