JP2013099173A - Power saving control system and power saving control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform power saving control of electrical equipment at low cost without newly providing a communication line.SOLUTION: In a wide area power saving control system 1, a wide area power saving control device 9 receives a usage power amount from a transformer substation 2, a power distribution wire feeding part 4 and a section switch 5, and if it is determined that power saving is required depending on the usage power amount, generates and outputs a control signal for power saving. The control signal is superposed on existing electric waves, and the electric waves are transmitted from an antenna 12. A loudspeaker 13 receives an electric wave of a community wireless system for disaster prevention, and delivers sound to a target region. A radio device 14 receives a radio broadcast wave to generate sound. A television set 15 receives a television broadcast wave to display video and generate sound. A microphone accepts the sounds generated by the loudspeaker 13, the radio device 14 and the television set 15, extracts the control signal from the sounds, and outputs the extracted control signal to a control circuit. The control circuit acquires the control signal from the microphone, and performs power saving control of home appliance equipment 10 and a home appliance control panel 11 by the control signal.

Description

  The present invention relates to a power saving control system and method for an electrical product.

  Since the occurrence of the Great East Japan Earthquake, the importance of energy-saving and power-saving measures has been increasing in households as compared with the past. However, power saving measures for household electrical appliances are largely due to the individual's awareness of power saving, such as the use of energy-saving home appliances, modest temperature settings, or the cessation of use. On the other hand, although the electric power companies have sufficient power generation capacity, there is a possibility that supply and demand will be suddenly tightened due to sudden increase in demand due to temperature rise, emergency stop of power plant, etc. . Several countermeasures for such a situation have been proposed.

  For example, in the “wide area power demand control system using simultaneous broadcasting” in Patent Document 1, an electric power operator and a general electric power consumer are connected via a transmission line and a communication line, and the electric power operator When the amount of power consumption in a specific area to be managed exceeds a predetermined threshold value, a power saving request is sent from the power company to the power consumer via a communication line in a simultaneous broadcast. On the other hand, when the power consumption in the area falls below the threshold value, a power saving cancellation is transmitted by simultaneous broadcasting.

  Further, in the method of “management of wide area power demand and power supply” in Patent Document 2, a user remotely monitors electrical and / or mechanical devices and changes the operation of the devices according to the situation. Is possible. Thereby, remote control and remote adjustment of the resource consumption related to the device can be performed.

JP 2002-345177 A Special table 2007-510968 gazette

  However, although the system of Patent Document 1 can adjust the amount of electric power over a wide area, it is necessary to connect the electric power company and the electric power consumer with a communication line. Also, in Patent Document 2, it is possible to remotely monitor and adjust power supply and demand in two directions over a wide area by monitoring devices, but a communication line is necessary. In this way, both can accurately adjust the power supply and demand, but a dedicated line must be provided, and in order to develop such equipment over a wide area, it will be a great burden in terms of cost. I think that the.

  The present invention has been made in view of the above problems, and a main object thereof is to perform power saving control of an electric device at a low cost without newly establishing a communication line.

  In order to solve the above problems, the present invention provides a power saving control system for controlling power saving of an electrical device, wherein the power saving control means generates a control signal for power saving of the electrical device as an audio signal, and the generation Signal superimposing means for superimposing the control signal on the radio wave, radio wave transmitting means for transmitting the radio wave on which the control signal is superimposed to a predetermined area, receiving the transmitted radio wave, converting the radio wave to sound, Audio output means for outputting sound; and signal extraction means attached to or close to the electric device for acquiring the output sound, converting the sound into an electric signal, and extracting the control signal from the electric signal; And a device control unit that is attached to or close to the electrical device and that saves power of the electrical device based on the extracted control signal.

  According to this configuration, the radio wave is transmitted to a predetermined area using the existing radio wave transmission means, and the voice is output to the vicinity thereof using the existing voice output means, so that a predetermined communication line is not provided. It is possible to transmit a control signal for saving electric equipment installed in the area. According to this, power saving control of an electric device can be performed at low cost.

  Further, in the power saving control system of the present invention, the power saving control means acquires the amount of power used in the predetermined area, determines whether or not power saving of the electrical device is necessary based on the amount of power used, When the power saving is necessary, the control signal may be generated.

  According to this configuration, a control signal to be transmitted next is generated if further power saving is necessary as determined from the amount of power used in a predetermined area. According to this, the transmission of the control signal by radio waves and voice is one-way, but by using the existing power amount monitoring control, the power consumption in a predetermined area is reflected in the power saving control. Feedback control can be realized. In addition, even if a control signal for power saving is transmitted once, the range of power saving of the electrical equipment is not accurately known as a result of the actual voice arrival, but feedback control using the power consumption does not necessarily It is possible to supplement the part of voice transmission that is not reliable enough.

  In the power saving control system of the present invention, the power saving control unit stores a target power amount that is a target value of the used power amount in the predetermined area, and when the used power amount is acquired, When the amount is larger than the stored target power amount, a power saving level indicating the degree of power saving is specified based on the difference between the used power amount and the target power amount, and the power saving level is set in the control signal And the said apparatus control means is good also as power saving of the said electric equipment based on the power saving level set to the said control signal.

  According to this configuration, when the actual power consumption is larger than the target value, any power saving method can be selected in order to eliminate the difference between them. For example, a sufficient power saving level may be set in order to eliminate the difference between the power consumption and the target value at a time. Alternatively, the power saving may be advanced step by step by increasing the power saving level step by step using feedback of the amount of power used.

  Further, in the power saving control system of the present invention, the power saving control means includes a target power amount that is a target value of power consumption in the predetermined area and an ID unique to each area obtained by dividing the predetermined area into a plurality of areas. Is stored, and when the used power amount is acquired, if the used power amount is larger than the stored target power amount, based on the difference between the used power amount and the target power amount Then, one or more area IDs are selected from the stored area IDs, the area IDs are set in the control signal, and the device control unit stores the area IDs of the areas where the electric devices are installed. In the case where the area ID set in the control signal matches the stored area ID, power saving of the electric device is performed.

  According to this configuration, when the actual power consumption is larger than the target value, any power saving method can be selected in order to eliminate the difference between them. For example, a sufficient area may be designated in order to eliminate the difference between the power consumption and the target value at a time. Alternatively, the power saving may be advanced step by step by designating the power saving target areas one by one using feedback of the amount of power used.

  The present invention includes a power saving control method. In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the description of the mode for carrying out the invention and the drawings.

  ADVANTAGE OF THE INVENTION According to this invention, power saving control of an electric equipment can be performed at low cost, without newly installing a communication line.

It is a figure which shows the structure of the wide area power saving control system. 2 is a diagram illustrating a hardware configuration of a wide area power saving control device 9. FIG. It is a figure which shows the hardware constitutions of the household appliances. It is a figure which shows the structure of the data used for the power saving control of the wide area power saving control system 1, (a) shows the structure of the target electric energy data 95A, (b) shows the structure of the power saving level management data 95B, (c ) Shows the configuration of the control data 106A, and (d) shows the data configuration of the control signal. 7 is a flowchart showing processing of the wide area power saving control device 9;

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the wide-area power saving control system according to the embodiment of the present invention, an audio signal on which a control signal for power saving control is superimposed is transmitted from a relay device such as a speaker used in disaster prevention radio or regional broadcast, a home radio, or a television. The home electric appliance for sending out includes a microphone that collects an audio signal and a filter that extracts a control signal from the audio signal. As a result, the home electric appliance acquires a control signal for a power saving request issued in an emergency and shifts to a power saving mode or a standby state, while returning to a normal mode or an operating state by acquiring a control signal for canceling the power saving. .

  The control signal includes information on the area where power is saved and the power saving level (strong, medium, weak) of each home appliance. After sending the control signal, the substation, section switch, pole transformer Monitor power savings (control signal effects) in units such as.

  Then, when further power saving is necessary as judged from the above power saving amount, feedback control is executed in stages, such as widening the target area or sending a control signal with an increased power saving level.

  According to this, although the transmission of the sound to the home appliance is one way, the feedback control can be performed as a result by reflecting the power saving amount in the power saving control. And it is possible to control and adjust electric energy in a wide area and bidirectionally without installing a dedicated communication line.

≪System configuration and overview≫
FIG. 1 is a diagram illustrating a configuration of a wide area power saving control system 1. As a structure of a normal distribution system, a substation 2, a distribution line 3, a distribution line delivery unit 4, a section switch 5, a pole transformer 6, an electric wire 7 and a customer house 8 are provided. A distribution line 3, which is a high-voltage distribution line, is extended from the distribution line delivery part 4 of the substation 2, and the distribution line 3 is divided into a predetermined number of sections by a section switch 5. The pole pole transformer 6 is provided in the utility pole in the section, and the low voltage distribution line and the electric wire 7 as the lead-in line are further extended from the pole pole transformer 6 to reach each customer house 8.

  The consumer's house 8 is provided with a home appliance 10 such as an air conditioner, a television, a refrigerator, and an electric water heater and a home appliance control panel 11. The home appliance 10 fulfills each function while consuming electric power supplied through the electric wire 7 and the home appliance control panel 11. The home appliance control panel 11 is a device that centrally controls on / off of power supply to the home appliance 10 and is composed of an assembly of breakers.

  As the existing equipment used to perform power saving control of the home appliance 10 for the above power distribution system, a wide area power saving control device 9, an antenna 12, a speaker 13, a radio 14, and a television 15 are provided. As a new facility for power saving control, a microphone and a control circuit (not shown) are provided in the home electric appliance 10 and the home electric appliance control panel 11 that are targets of power saving control.

  The wide area power saving control device 9 receives the amount of power used from the substation 2, the distribution line sending part 4 and the section switch 5, determines the necessity of power saving based on the amount of power used, and according to the necessity. A control signal for power saving control is generated and the control signal is output. The output control signal is superimposed on an audio signal in an existing radio wave transmission facility (signal superimposing means), and the audio signal including the control signal is converted into a radio wave, and the radio wave is transmitted from the antenna 12. The radio wave transmission facility may be a radio station or a television station. Radio waves include disaster prevention radio waves, radio broadcast waves, television broadcast waves, and the like, and the same control signal can be placed on different types of radio waves.

  The speaker 13 is a speaker device for disaster prevention installed outdoors, and broadcasts simultaneously by receiving radio waves from a disaster prevention radio and sending sound to the target area. The radio 14 is a radio receiver installed in the customer's house 8 and receives radio broadcast waves and emits sound. The television 15 is a television receiver installed in the customer's house 8, receives a television broadcast wave, displays an image, and emits sound.

  The microphone receives sound emitted from the speaker 13, the radio 14, and the television 15, extracts a control signal from the sound, and outputs the control signal to a control circuit (not shown). The control circuit acquires a control signal from the microphone and performs power saving control of the home appliance 10 and the home appliance control panel 11 based on the control signal.

  For example, by setting in advance the priority order of home appliances 10 (TVs, electric water heaters, air conditioners, etc.) to be saved in the home appliance control panel 11 of the customer's house 8, the home appliance control panel 11 However, a method of turning off each home appliance 10 according to the priority order (or reducing the power consumption) according to the power saving level of the control signal is also conceivable.

  FIG. 2 is a diagram illustrating a hardware configuration of the wide area power saving control device 9. The wide area power saving control device 9 includes a communication unit 91, a display unit 92, an input unit 93, a processing unit 94, and a storage unit 95, and is configured so that each unit can transmit and receive data via a bus 96. The communication unit 91 is a part that performs IP (Internet Protocol) communication with a distribution facility such as the distribution line sending unit 4 and a radio wave transmission facility such as the antenna 12 via a network, and is realized by, for example, a NIC (Network Interface Card) or the like. Is done. The display unit 92 is a part that displays data according to an instruction from the processing unit 94, and is realized by, for example, a liquid crystal display (LCD). The input unit 93 is a part where an operator inputs data (for example, target power amount of each distribution line sending unit 4) and instructions, and is realized by, for example, a keyboard, a mouse, a touch panel, or the like. The processing unit 94 transfers data between the respective units via a predetermined memory and controls the entire wide area power saving control device 9. A CPU (Central Processing Unit) is stored in the predetermined memory. This is realized by executing the program. The storage unit 95 stores data from the processing unit 94 and reads the stored data, and is realized by, for example, a nonvolatile storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive). The The wide area power saving control device 9 is realized by, for example, a server computer used for existing power amount monitoring control and the like.

  FIG. 3 is a diagram illustrating a hardware configuration of the home appliance 10. The home appliance 10 includes various devices. As a common configuration, the acoustoelectric converter 101, the filter 102, and the amplifier 103 as a microphone, the A / D converter 104 as a control circuit, the control unit 105, and a storage are used. Unit 106. Note that a configuration unique to each home appliance 10 is omitted.

  The sound-electric converter 101 collects sound emitted from the speaker 13, the radio 14, and the television 15, converts the sound into an electric signal, and outputs the converted electric signal to the filter 102. At the time of actual sound collection, considerable background noise (noise other than necessary signals) is generated, and it is considered that the background noise is also included in the electrical signal. On the other hand, the filter 102 acquires an electrical signal from the acoustoelectric converter 101, passes only a signal in a predetermined frequency region (frequency band of the control signal), and outputs the signal to the amplifier 103. It is realized by a band pass filter or the like. In addition, for example, when the control signal is created with a combination of a specific frequency and the generation cycle of the frequency, the filter 102 uses an electrical signal including background noise and the control signal as a signal in a specific frequency region for a predetermined time. It is also possible to use what (wavelet transform) that grasps the appearance of each (period), extracts the frequency and period of the signal, and decodes it. The amplifier 103 acquires the signal from the filter 102, amplifies it, and outputs the amplified signal to the A / D converter 104.

  The A / D converter 104 converts an analog signal into a digital signal, and outputs the converted digital signal to the control unit 105. The control unit 105 acquires a digital signal from the A / D converter 104 and performs power saving control on the home appliance 10 according to the content of the control signal included in the digital signal. The storage unit 106 stores data necessary for power saving control of the home appliance 10.

  The home appliance control panel 11 has a common hardware configuration similar to that of the home appliance 10. Further, for example, a remote controller such as an air conditioner or a television set in the home appliance 10 may perform power saving control of the air conditioner or the television set by providing a common hardware configuration.

<< Data structure >>
FIG. 4 is a diagram illustrating a configuration of data used for power saving control of the wide area power saving control system 1. 4A and 4B show the configuration of data stored in the storage unit 95 of the wide-area power saving control device 9. FIG. 4A shows the configuration of the target power amount data 95A. The target power amount data 95A indicates the target power amount of the distribution line sending unit 4 in order to save power for each distribution line 3, and includes the distribution line sending unit ID 95A1 and the target power amount 95A2. It consists of every third record.

  The distribution line delivery part ID 95 </ b> A <b> 1 is an ID unique to the distribution line delivery part 4. The target power amount 95A2 is a target power amount used in the distribution line, and is updated as needed according to the tight situation of power supply and demand. For example, the amount of power obtained by subtracting a predetermined margin from the maximum amount of power that can be supplied, which changes every moment, is set. In addition, the power amount that can be realized is set in consideration of the power demand that varies depending on the season. Furthermore, since the substation 2 only needs to be able to supply power to the whole of the plurality of distribution lines 3, it is conceivable that the target power amount 95 </ b> A <b> 2 is interchanged and adjusted between the distribution lines 3. In the wide-area power saving control device 9, the power saving control of the home appliance 10 is performed so that the actual power consumption is equal to or less than the target power consumption 95A2.

  FIG. 4B shows the configuration of the power saving level management data 95B. The power saving level management data 95B is for managing the power saving level of the area to which power is supplied by the section from the section switch 5 to the next section switch 5 for each distribution line sending section 4, and includes section ID 95B1, area ID 95B2 and power saving. It consists of records for each section switch 5 including level 95B3. Although it is necessary to install a watt-hour meter in each section switch 5 and calculate the power consumption of the section based on the difference in power consumption between adjacent section switches 5, The minimum unit in which the amount of power used in this system can be grasped is the section switch 5, and the power saving level of the home appliance 10 is determined and managed in detail under each section switch 5.

  The section ID 95B1 is an ID unique to the section switch 5. The area ID 95B2 is an ID unique to the area (region) to which the section switch 5 supplies power, and the same area ID is set for the home appliance 10 installed in the customer's house 8 in the region. Thereby, the power saving control of the home appliance 10 for each area can be performed with high accuracy. The power saving level 95B3 indicates the degree of power saving to be set for the home electric appliance 10 in the area, and is set to, for example, strong, medium, weak, or 0.

  FIG. 4C shows the configuration of the control data 106 </ b> A stored in the storage unit 106 of the home appliance 10. The control data 106A is data used for power saving control, and includes an area ID 106A1 and a preset mode 106A2. The area ID 106A1 is an ID of an area in which the home appliance 10 is installed. The area ID 106A1 is compared with the area ID included in the control signal. The pre-setting mode 106A2 is a setting mode of each home electric appliance 10 before performing power saving control. For example, in the case of a television, the size of the selected channel or volume is selected. Heating, set temperature, set air volume, set direction, etc. are set. When the control signal for canceling power saving is received, the mode of each home appliance 10 is reset to the preset mode 106A2.

  FIG. 4D shows the data structure of the control signal. The control signal includes a control code, an area ID, and a power saving level. The control code is a code for power saving control, and a code indicating a power saving instruction or power saving cancellation is set. The area ID is an ID unique to the area to be subjected to power saving control, and one or a plurality of area IDs 95B2 are set in the power saving level management data 95B. The power saving level indicates the degree of power saving to be set in the home appliance 10, and when the control code is a power saving instruction, for example, one of weak, medium, and strong is set.

≪System processing≫
FIG. 5 is a flowchart showing the processing of the wide area power saving control device 9. In this wide area power saving control device 9, the processing unit 94 mainly transmits / receives data to / from other devices through the communication unit 91, and refers to and updates the data in the storage unit 95, while The power saving control for the section is performed in parallel.

  First, the wide area power saving control device 9 acquires the amount of power used in the distribution line 3 from a certain distribution line delivery unit 4 (S501). Next, it is determined whether or not the acquired power consumption is equal to or less than the target power consumption (S502). Of the target power amount data 95A of the storage unit 95, the target power amount 95A2 corresponding to the distribution line sending unit ID 95A1 is used as the target power amount. If the power consumption is not less than or equal to the target power consumption (N in S502), it is necessary to save power for the home appliance 10.

  Therefore, the wide-area power saving control device 9 refers to the first record in the power saving level management data 95B, and determines whether or not the power saving level 95B3 is set to the maximum (S503). For example, in FIG. 4B, since the power saving level 95B3 of the record whose area ID 95B2 is A1 is “weak”, it is not the maximum “strong”. If the power saving level 95B3 is not the maximum (N in S503), there is a room for further power saving in the area, so the power saving level 95B3 is increased by 1 (S504). For example, if the power saving level 95B3 is “weak”, it is raised to “medium” and reset.

  On the other hand, if the power saving level 95B3 is maximum (Y in S503), there is no room for power saving in that area, so the power saving level 95B3 in the next area is increased by one (S505). For example, in the power saving level management data 95B of FIG. 4B, assuming that the power saving level 95B3 of the first record is “strong”, it is the maximum, so “ Raise “0” to “weak” and reset.

  Then, the wide-area power saving control device 9 generates a control signal in which a power saving instruction control code is set as an audio signal, and outputs it to an existing radio wave transmission facility (radio station, television station, disaster prevention radio wave transmission station, etc.) (S506). . According to the above example, in the post-processing of S504, A1 is set as the area ID of the control signal, and “medium” is set as the power saving level. In the post-processing of S505, A2 is set as the area ID of the control signal, and “weak” is set as the power saving level. The existing radio wave transmission facility acquires the control signal output from the wide area power saving control device 9 and transmits the control signal from the antenna 12 by superimposing the control signal on the radio wave. Specifically, if a radio wave is transmitted from the radio wave transmission facility at that time, the radio wave including the control signal is transmitted by superimposing the control signal on the audio signal that is the source of the radio wave. On the other hand, if no radio wave is transmitted, the radio wave modulated by the control signal is transmitted. According to this, even if the radio wave is not transmitted at that time, the radio wave carrying the control signal can be immediately transmitted, so that power saving control can be performed in a timely manner without delay.

  At this time, in the home appliance 10, the acoustoelectric converter 101 receives sound including a control signal from the speaker 13 or the like, converts it into an electric signal, and passes through the processing of the filter 102, the amplifier 103 and the A / D converter 104. The control unit 105 acquires a power-saving instruction control signal. Then, when the area ID included in the control signal matches the area ID 106A1 of the storage unit 106, the control unit 105 performs power saving control according to the power saving level included in the control signal. In this power saving control, for example, the setting mode of each home electric appliance 10 corresponding to the power saving level is strong, medium, or weak is stored in the storage unit 106 in advance, and the setting mode is used. For example, in the case of an air conditioner, three stages of temperatures are set according to the season. In the case of a television, three levels are set: normal mode, power saving mode, and power-off (standby mode). According to this, every time a power saving instruction control signal is acquired, the mode is set to “weak” at first, “moderate” is set if “weak” is not enough, and “medium” is not enough. It can also be controlled step by step, as in the “strong” mode. If the area IDs do not match, no processing is performed because the area is outside the power saving target area.

  In addition, since the speaker 13, the radio 14, and the television 15 do not always emit a control signal for power saving, even if the control signal is included in the audible frequency band, there seems to be no problem for humans. However, when it is necessary to control without giving stress to a person, a control signal may be superimposed on a frequency band from which the audible frequency band is removed.

  If the amount of power used is equal to or less than the target power amount in S502 (Y in S502), there is a sufficient margin up to the maximum power amount that can be supplied, and thus power saving does not have to be performed. Therefore, the wide-area power saving control device 9 refers to the power saving level management data 95B and determines whether there is an area where the power saving level 95B3 is not 0 (S507). This is to confirm whether or not there is an area where power is being saved in the section. If there is a corresponding area (Y in S507), the power saving level 95B3 is set to 0 (S508). Then, a control signal in which a control code for canceling power saving is set is generated as an audio signal and output to an existing radio wave transmission facility (S509). Thereby, the radio wave including the control signal is transmitted from the antenna 12.

  In the household electrical appliance 10, similarly to the above, the sound-electric converter 101 receives sound including a control signal and converts it into an electric signal, and then the control unit 105 acquires a control signal for canceling power saving. Then, when the area ID included in the control signal matches the area ID 106A1 of the storage unit 106, the power saving cancellation control is performed. Specifically, the mode of the home electric appliance 10 is returned to the preset mode 106A2 of the control data 106A. Thereby, household appliances 10 will return to the mode before receiving power-saving control.

  If there is no power saving area in S507 (N in S507), power saving is canceled in all areas in the distribution line 3, and the process returns to S501.

  In the above embodiment, a program executed by the processing unit 94 and the control unit 105 (CPU) in order to make the wide area power saving control device 9 and the home appliance 10 in the wide area power saving control system 1 shown in FIG. The wide-area power saving control system 1 according to the embodiment of the present invention is realized by recording on a computer-readable recording medium, causing the computer to read and execute the recorded program. In this case, the program may be provided to the computer via a network such as the Internet, or a semiconductor chip or the like in which the program is written may be incorporated in the computer.

  According to the embodiment of the present invention described above, power saving control of the home appliance 10 installed in the customer's house 8 over a wide area can be performed at low cost without newly establishing a communication line for power saving control. Can do.

  Specifically, as shown in FIG. 3, since the specific frequency region can be extracted from the background noise by using the existing filter 102, even if a voice transmission path is provided, the noise that enters in the middle of the noise can be extracted. The control signal can be sufficiently extracted from the inside.

  Next, as shown in S501 to S506 in FIG. 5, power saving control is performed when the actual power consumption is larger than the target power consumption, that is, the power consumption of the entire home appliance 10 that receives power from the distribution line 3. By reflecting this in the power saving control, feedback control can be realized. In addition, according to this, it is not clear how far the voice has actually arrived, but the portion of the voice transmission that is not sufficiently reliable can be supplemented by the existing power amount monitoring control.

  According to the above, since the home appliance 10 can save power by transmitting a control signal using radio waves and voice, it can be effectively applied even in developing countries where communication lines including the Internet are not developed. In addition, it is not necessary to provide a dedicated line or dedicated address for each home appliance 10, and only a microphone and a control circuit need be added, so that the cost can be reduced.

  In addition, when power supply and demand is tight at the substation 2 or the like, the consumer can automatically save power according to an instruction from the government agency or a call from the electric power company without individually responding to power saving. Moreover, if compared with power saving by manual operation of each consumer, quick response is possible.

  Furthermore, there is a high possibility that sudden power outages and planned power outages due to insufficient power supply can be avoided. The wide-area power saving control system 1 can be used for power supply and demand adjustment.

<< Other embodiments >>
As mentioned above, although the form for implementing this invention was demonstrated, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention. For example, the following embodiments can be considered.

(1) In the above embodiment, it has been described that the wide-area power saving control device 9 grasps the amount of power used as needed and compares it with the target power amount to determine whether power saving is necessary. You may make it control by. For example, by monitoring the power supply and demand situation in each unit of the substation 2, the distribution line delivery section 4, the section switch 5, and the pole transformer 6, the target value of the required power saving amount at that time is specified. Quantitatively grasp the amount of power saving (effect of control signal) that is the amount of change in power consumption before and after transmission of the control signal, and compare the power saving amount with the target value to determine whether further power saving is necessary. to decide.

(2) In the above embodiment, power saving control of the home appliance 10 has been described, but other electric devices may be targeted. For example, it may be a lighting device or an air conditioning device installed in a store or office building.

(3) In the above embodiment, when the power consumption is larger than the target power consumption, the power saving level is increased by one step. However, depending on the magnitude of the difference between the power consumption and the target power consumption. The power saving level may be selected. In addition, although it has been described that only one area is selected when raising the power saving level of a new area, one or more areas may be selected according to the magnitude of the difference.

  Furthermore, although it has been described that when the power saving level of one area is maximized, the next area is set as a power saving target, another procedure may be used. For example, after making one area “weak”, if further power saving is required, the next area may be set to “weak”. Even if all areas in the section are set to “weak”, if further power saving is necessary, one area is set from “weak” to “medium”.

1 Wide-area power saving control system (power saving control system)
9 Wide area power saving control device (power saving control means, power saving control device)
94 processing unit 95 storage unit 95A2 target electric energy 10 home appliance (electrical device)
102 Filter (Signal extraction means, equipment control device)
105 control unit (device control means, device control device)
106 Storage unit (device control means, device control device)
106A1 Area ID
12 Antenna (radio wave transmission means)
13 Speaker (Audio output means)
14 Radio (Audio output means)
15 TV (Audio output means)

Claims (8)

A power saving control system for controlling power saving of electrical equipment,
Power saving control means for generating a control signal for power saving of the electrical device as an audio signal;
Signal superimposing means for superimposing the generated control signal on radio waves;
Radio wave transmitting means for transmitting a radio wave superimposed with the control signal to a predetermined area;
Audio output means for receiving the transmitted radio wave, converting the radio wave into sound, and outputting the sound;
Signal extraction means attached to or near the electrical device, acquiring the output sound, converting the sound into an electrical signal, and extracting the control signal from the electrical signal;
Device control means attached to or in the vicinity of the electrical device, and based on the extracted control signal, to save power of the electrical device;
A power saving control system comprising: The power saving control system according to claim 1,
The power saving control means includes:
Obtaining the amount of power used in the predetermined area, determining whether power saving of the electrical device is necessary based on the amount of power used, and generating the control signal when the power saving is necessary. A featured power saving control system. The power saving control system according to claim 2,
The power saving control means includes:
Storing a target power amount that is a target value of power consumption in the predetermined area;
A power saving level indicating the degree of power saving based on a difference between the used power amount and the target power amount when the used power amount is larger than the stored target power amount when the used power amount is acquired. And set the power saving level in the control signal,
The device control means includes
The power saving control system characterized in that the electric device is saved based on a power saving level set in the control signal. The power saving control system according to claim 2,
The power saving control means includes:
Storing a target power amount that is a target value of power consumption in the predetermined region and an area ID that is an ID unique to each area obtained by dividing the predetermined region into a plurality of areas;
Of the stored area IDs based on the difference between the used power amount and the target power amount when the used power amount is larger than the stored target power amount when the used power amount is acquired. Select one or more area IDs, set the area IDs in the control signal,
The device control means includes
Store the area ID of the area where the electrical equipment is installed,
When the area ID set in the control signal coincides with the stored area ID, the power saving of the electric device is performed. A power-saving control method for controlling power-saving of the electric device by means of a power-saving control device installed for each predetermined area and a device control device attached to or close to each electric device,
The power saving control device includes:
Generating a control signal for power saving of the electrical device as an audio signal;
Superimposing the generated control signal on radio waves;
Transmitting the radio wave superimposed with the control signal to the predetermined area;
Run
The device control device
Obtaining a voice converted from the transmitted radio wave, converting the voice into an electrical signal, and extracting the control signal from the electrical signal;
Saving power of the electrical device based on the extracted control signal;
The power-saving control method characterized by performing this. The power saving control method according to claim 5,
The power saving control device includes:
Obtaining the amount of power used in the predetermined area, determining whether power saving of the electrical device is necessary based on the amount of power used, and generating the control signal when the power saving is necessary. A characteristic power saving control method. The power saving control method according to claim 6,
The power saving control device includes:
Storing a target power amount that is a target value of power consumption in the predetermined area;
A power saving level indicating the degree of power saving based on a difference between the used power amount and the target power amount when the used power amount is larger than the stored target power amount when the used power amount is acquired. And set the power saving level in the control signal,
The device control device
A power saving control method, wherein power saving of the electric device is performed based on a power saving level set in the control signal. The power saving control method according to claim 6,
The power saving control device includes:
Storing a target power amount that is a target value of power consumption in the predetermined region and an area ID that is an ID unique to each area obtained by dividing the predetermined region into a plurality of areas;
Of the stored area IDs based on the difference between the used power amount and the target power amount when the used power amount is larger than the stored target power amount when the used power amount is acquired. Select one or more area IDs, set the area IDs in the control signal,
The device control device
Store the area ID of the area where the electrical equipment is installed,
When the area ID set in the control signal coincides with the stored area ID, the power saving of the electric device is performed.

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