JP2009259125A - Power management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power management system capable of presenting an energy-saving plan that matches the actual status of use of electric power to allow residents to perform energy-saving activities easily. <P>SOLUTION: A residence-side management device 11 includes a comparison means 14 for comparing the amount of electric power used by a target electric device that is measured by a power measuring means 12 with a reference amount of power used so as to see which is greater; a level determination means 15 for determining, based on the result of comparison by the comparison means 14, which power use level the amount of power used by the electrical device matches, among a plurality of power use levels matching differences between measurements of power use and the reference amount of power use; an energy-saving plan storage means 27 for storing a plurality of energy-saving plans for reducing the amount of power used; and an energy-saving plan retrieval means 17 for retrieving from the energy-saving plan storage means 27 the energy-saving plan that matches the power use level determined by the level determination means 15. The energy-saving plan retrieved is presented to residents. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power management system.

In recent years, interest in energy conservation has been increasing from the viewpoint of protecting the global environment, but energy conservation measures in the residential sector have not progressed much compared to energy conservation measures in the business establishment sector. Therefore, the introduction of a power management system called HEMS (Home Energy Management System) is being studied as an energy-saving measure in the residential sector. In conventional HEMS, the amount of power used is measured for each branch circuit of the home electrical wiring, and the branch circuit Every time, energy saving measures according to the measurement result of the power consumption are supported (see, for example, Patent Document 1).
JP 2007-228734 A

  Many of the conventional power management systems described above display the power usage values measured for each branch circuit, and these power usage values are not familiar to residents. There was a problem that it was difficult to determine what kind of energy saving measures should be taken by looking at the numerical value of the quantity, and it was difficult to lead to the energy saving behavior of residents.

  The present invention has been made in view of the above-mentioned problems, and the purpose of the present invention is to provide an energy-saving plan that is in line with the actual usage of electric power, and to perform energy-saving behavior that is reasonable for residents. An object of the present invention is to provide a power management system that can be made to operate.

  In order to achieve the above object, the invention of claim 1 includes a reference power usage amount storage means for storing a reference power usage amount of a residence, a power measurement means for measuring the power usage amount in the residence, and a power measurement means. Comparison means for comparing the power usage measured in step 1 and the reference power usage, and among the power usage levels divided into a plurality according to the difference between the actual value of power usage and the reference power usage Based on the comparison result of the comparison unit, the level determination unit that determines which power usage level the power usage measured by the power measurement unit corresponds to, and reduces the power usage according to each power usage level The energy determined by the level determining means from among the energy saving plan storage means registered with the energy saving plan for the operation and the plurality of energy saving plans registered in the energy saving plan storage means And energy saving plan retrieval means for retrieving the energy saving plan in accordance with the use level, the energy saving plan retrieved by energy saving plan retrieval means, characterized in that a energy saving plan presenting means for presenting the residence's the dwelling.

  According to a second aspect of the present invention, in the first aspect of the present invention, an energy saving plan is set in the energy saving plan storage means in advance so that the amount of power used is reduced to a power usage level one level lower for each power usage level. The energy saving plan search means searches for an energy saving plan that reduces the power usage level of the dwelling unit to a power usage level one level lower based on the power usage level determined by the level determination means. It is characterized by.

  The invention according to claim 3 is the invention according to claim 1 or 2, in which the resident inputs a question presenting means for presenting a question regarding the energy saving behavior of the resident to the resident when the system is introduced, and a reply to the presented question. And an initial level estimating means for estimating the power usage level of the dwelling unit based on the answer content input using the answer input means.

  The invention of claim 4 is the invention according to any one of claims 1 to 3, further comprising power history storage means for storing a history of measurement results by the power measurement means, wherein the energy saving plan search means is energy saving presented to the resident. Based on the contents of the plan and the history of power usage after presentation stored in the power history storage means, when the energy saving plan presented before the predetermined time elapses from the point of presentation of the energy saving plan is not executed, The energy saving plan is excluded from the subject of presentation.

  The invention of claim 5 is the invention according to any one of claims 1 to 4, wherein the reference power usage storage means, the power measurement means, the comparison means, the level judgment means, the energy saving plan storage means, the energy saving plan search means, and A plurality of residential management devices installed at each residence with at least an energy saving plan presenting means, and a central management device capable of communicating via a communication network between the multiple residential management devices. Statistics based on the data collection means for collecting the power consumption measurement results from the residential management device, the data storage means for storing the collected power consumption, and the power consumption stored in the data storage means A correction means for correcting the reference power usage by performing processing, and a transmission means for transmitting the corrected reference power usage to the residential management device are provided, and each residential management In addition, there is provided update means for updating the reference power usage stored in the reference power usage storage means to the corrected reference power usage when receiving the corrected reference power usage from the central management device. Features.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the reference power usage amount storage means stores the reference power usage amount for each type of electrical equipment, and the power measurement means includes: The power consumption for each type of electrical equipment is measured, and the comparison means compares the power usage measured by the power measurement means with the reference power usage for each type of electrical equipment. .

  According to a seventh aspect of the present invention, in any one of the first to fifth aspects of the present invention, the reference power usage amount storage means stores the reference power usage amount of the electrical equipment in the room for each room in the residence. At the same time, the power measuring means measures the power usage of the electrical equipment in the room for each room in the residence, and the comparing means measures the power usage measured by the power measuring means and the reference power for each room. It is characterized by comparing the amount with the amount used.

  According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the level determining means determines the first level when the measurement result of the power consumption exceeds a predetermined range from the reference power usage. If the measurement result of the power usage is within the predetermined range from the reference power usage, it is determined as the second level, and if the measurement result of the power usage is smaller than the predetermined power usage, the third level. It is characterized by judging the level.

  According to the invention of claim 1, in the level determination means, the measurement result of the power consumption is calculated based on the result of the comparison between the power consumption measured by the power measurement means and the reference power usage. Since it is determined which power usage level corresponds, the actual power usage in the residence can be determined based on the reference power usage. In addition, the energy saving plan search means searches for an energy saving plan corresponding to the power usage level determined by the level determination means, and does not simply display the power usage amount, but the power usage status (power usage level). By presenting a suitable energy saving plan to the residents, it becomes easier for the residents to work on the presented energy saving plan, and by executing the energy saving plan reasonably, there is an effect that energy saving in the housing sector can be realized reliably. .

  According to the second aspect of the present invention, an energy-saving plan that reduces the power usage level to one lower power usage level based on the power usage level determined by the level determination means is presented to the resident. In addition, by presenting a reasonable energy saving plan that can be easily addressed by residents, it becomes easier for the residents to work on the presented energy saving plan, and energy saving can be realized with certainty.

  According to the invention of claim 3, when the system is introduced, the question presenting means presents a question regarding energy saving behavior to the resident, and causes the resident to input an answer to the question using the answer input means. Even when introducing a system that can estimate the usage level and there is no actual value of power consumption, the energy conservation plan search means selects an energy conservation plan based on the estimation result of the power usage level, so residents can reasonably There is an effect that an energy saving plan that can be addressed can be presented.

  According to the invention of claim 4, the energy saving plan that is easy to be executed by the resident can be selected by the energy saving plan search means by excluding the energy saving plan that is presented to the resident but is not executed from the presentation target. it can.

  According to the invention of claim 5, on the central management device side, the power consumption measurement results are collected from the plurality of residential management devices connected to the central management device via the network, and the collected measurement results are statistically collected. The reference power usage is corrected by performing processing, the corrected reference power usage is transmitted to the residential management device, and the value of the reference power usage stored in the reference power usage storage means is updated. Therefore, by reflecting the power consumption in multiple dwellings in the standard power consumption, it is possible to compare the power consumption with other dwellings, and the residents have a sense of competition with other dwellers for energy saving behavior. Can be made.

  According to the invention of claim 6, since the energy saving plan is presented for each type of electric equipment, it is easy for the resident to understand the waste of electric power used and the energy saving effect of each electric equipment, and the understanding of the presented energy saving plan. To deepen the awareness of energy conservation.

  According to the invention of claim 7, since the energy saving plan is presented for each room in the residence, it is easy for the resident to understand the waste of power used in each room and the energy saving effect, and the understanding of the presented energy saving plan. To deepen the awareness of energy conservation.

  According to the invention of claim 8, the level determining means is configured such that the measurement result of the power usage amount is larger than the reference power usage amount exceeding the predetermined range, and the power usage measurement result is within the predetermined range from the reference power usage amount. In this case, the power usage level is evaluated separately when the measurement result of the power consumption is smaller than the reference power usage and exceeds a predetermined range. Therefore, there is an advantage that the evaluation result is easy to understand.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 2 is a schematic configuration diagram showing the overall configuration of the power management system of the present embodiment. In this system, the integrated management panel 1 installed in the house 7 and the integrated management panel 1 of each house 7 are like the Internet. It is comprised with the center server 3 (central management apparatus) connected via the communication network 2. FIG. In FIG. 2, only one integrated management panel 1 is connected to the center server 3, but actually, a plurality of integrated management panels 1 installed in a plurality of residences 7 are connected to the center server 3. Yes.

  The integrated management panel 1 houses a main breaker (not shown) and a plurality of branch breakers (not shown) installed on the secondary side of the main breaker to turn on / off power supply to the branch circuit. Each branch circuit is connected to one or more electric devices. The integrated management panel 1 is connected to a control panel 4 for presenting information to the resident and performing various settings and operations. The control panel 4 is installed in a living room in the residence 7 or the like. .

The electrical equipment used in each residence 7 is classified into three types, for example, housework support equipment, entertainment equipment, and environmental control equipment, depending on the application. In the construction example of FIG. 2, a lighting device 51 and an air conditioner 52 are installed as an environmental control device in a living room 71 and a bedroom 72, and a television 53 is installed as an entertainment device. In the kitchen 73, a lighting fixture 51, an air conditioner 52, a ventilation fan (not shown) and the like are installed as environment control devices, and an IH heater 54, a microwave oven 55, a dishwasher 56, and a rice cooker 57 as housework support devices. Etc. are installed. In addition, in the washroom 75, a lighting device 51 and a ventilation fan (not shown) are installed as environmental control devices, and a washing machine 58 and a dryer 59 are installed as housework support devices. In the bathroom 76, a lighting fixture 51, a CO ₂ refrigerant heat pump water heater 60, a ventilation fan (not shown), and the like are installed as environmental control devices. In the hallway 74, a lighting fixture 51 is installed as an environmental control device. Further, an outlet 61 is provided in each room. Household support devices such as a vacuum cleaner (not shown), entertainment devices such as a television 53 and a stereo, a fan (not shown), a halogen heater are provided in the outlet 61. It can be used by appropriately connecting environmental control devices such as.

  Next, the configuration of the integrated management panel 1, the center server 3, and the control panel 4 will be described with reference to the block diagram of FIG.

  The control panel 4 is a terminal device for presenting information to the resident and for the resident to perform various settings and operations. Between the control means 40 that performs overall control and the resident-side management device 11. Communication means 42 for performing data communication, a monitor 43 comprising, for example, a liquid crystal display and disposed on the front surface of the panel main body 41, a touch switch (not shown) provided on the monitor 43, and a front surface of the panel main body 41. An input means 44 comprising operation buttons (not shown) is provided.

  The integrated management board 1 is configured by housing a breaker 10 (consisting of a main breaker and a plurality of branch breakers) and a residence-side management apparatus 11 in the board.

  The residential management apparatus 11 includes a power measuring unit 12, a housing information input unit 13, a comparing unit 14, a level determining unit 15, an energy saving action detecting unit 16, an energy saving plan search unit 17, a notifying unit 18, a notifying unit 19, and an updating unit 20. A question presenting means 21, an answer obtaining means 22, an initial level estimating means 23, a power history / attribute storage means 24, a reference power consumption storage means 25, a power level information storage means 26, and an energy saving plan storage means 27; It has.

  The power measuring means 12 measures the amount of power used in the electrical equipment in the residence for each individual branch circuit, and includes a plurality of current sensors provided for each individual branch breaker. The measured values of the current flowing through the branch circuits are sequentially collected in a predetermined measurement period, and the power usage amount of each branch circuit in each measurement period is obtained by calculation based on the collection result. Here, since each branch circuit is generally provided corresponding to each room in the residence, the power measuring means 12 uses the power usage of each branch circuit from the power usage for each branch circuit. Can be summed. When a specific electrical device such as an air conditioner is connected to the branch circuit, the power measuring means 12 can determine the power usage of a specific type of electrical device from the power usage of the branch circuit. On the other hand, when the outlet 61 is connected to the branch circuit, various electric devices can be connected to the outlet 61, but the electric devices used for each room are limited to some extent. Therefore, the power measuring means 12 can determine on / off of each electric device based on feature quantities such as current consumption and current waveform at start-up, for example. The amount of power used for each type is obtained. Then, the power usage during each measurement period measured by the power measuring means 12 is associated with date information for each branch circuit (that is, for each room) or for each type of electrical equipment connected to each branch circuit. And stored in the power history / attribute storage means 24.

  The residence information input means 13 is used for the resident to input the attribute information of the residence 7. Here, the attribute information of the dwelling 7 is information necessary for setting the reference power consumption amount of the dwelling 7, for example, family information regarding the resident's family structure (gender, age, occupation, etc.) The local information related to the location of the residence 7 (for example, the name of the prefecture), the building information related to the structure of the building (such as a condominium or a detached house) and the size (such as floor plan or building area) are input.

  The power history / attribute storage unit 24 stores the attribute information of the residence 7 input from the residence information input unit 13 and also stores the power usage amount of each electrical device measured by the power measurement unit 12 at a predetermined time interval (for example, 1 minute to 1 hour). In order to save the storage capacity, the power history / attribute storage unit 24 stores the power usage amount at a predetermined time interval, and stores the power usage amount data when a predetermined period sufficiently longer than the time interval elapses. Aggregate data from 1 hour to 1 day.

  The reference power usage amount storage means 25 stores a reference value (reference power usage amount) of the power usage amount in the electrical equipment in the residence set according to the family structure of the resident and the area or the structure of the building. When the updating unit 20 receives the corrected reference power usage amount transmitted from the center server 3, the updating unit 20 updates the reference power usage amount stored in the reference power usage storage unit 25 to the corrected reference power usage amount. Therefore, the value of the reference power consumption can be updated as appropriate. The reference power consumption storage means 25 stores the reference power consumption for each category such as family, region, building, device, month, and time. The reference power usage storage means 25 registers the reference power usage by the number of residents and the area of the residence, but the reference power usage per unit person and the reference power usage per unit area are registered. The reference power consumption may be corrected using data.

  The comparison unit 14 reads out the measurement result of the power usage for each electrical device from the power history / attribute storage unit 24 and the reference power usage storage unit 25 based on the attribute information read from the power history / attribute storage unit 24. The reference power usage of the target device that matches the attribute information is read out, and the measurement result of the power usage is compared with the level of the reference power usage.

  The level determination unit 15 determines which power usage level the power usage measured by the power measurement unit 12 corresponds to based on the comparison result of the comparison unit 14, and stores the determination result in the power level information storage unit 26. Remember. Here, in the level determination means 15, if the measurement result of the power usage exceeds the predetermined range from the reference power usage according to the difference between the measurement result of the power usage and the reference power usage, the waste level ( If the measurement result of the power usage is within a predetermined range from the reference power usage, it is determined as the standard level (second level), and the measurement result of the power usage is determined from the reference power usage. If it is smaller than the specified range, it is judged as an eco level (third level), and it is only a classification of whether it is a standard level or more or less electricity usage than the standard level, so understand the evaluation result of the power usage level There is an advantage that it is easy to do. In the present embodiment, each of the first level, the second level, and the third level is a single level, but each level may be divided into a plurality of levels for evaluation.

  The standard power consumption differs depending on conditions such as the family structure of the residents, the area, and the structure of the building.For example, depending on the area where the residence is located, it is west of the Kansai region, Chubu to Kanto, Tohoku and Hokkaido. The standard power consumption is different in the three regions. FIG. 3 shows the power consumption corresponding to the above three levels for each region. For example, in the region west of Kansai, if the monthly cumulative power consumption is less than 7 (MWh / m2 / month), If it is 7 (MWh / m2 / month) or more and less than 18 (MWh / m2 / month), it is classified as a standard level, and if it is 18 (MWh / m2 / month) or more, it is classified as a waste level. In the region from the Chubu region to the Kanto region, if the monthly cumulative power consumption is less than 10 (MWh / m2 / month), the eco-level is 10 (MWh / m2 / month) or more and 20 (MWh / m2 / month). If it is less than), it is classified as a standard level, and if it is 20 (MWh / m2 / month) or more, it is classified as a waste level. In the Tohoku and Hokkaido regions, if the monthly cumulative power consumption is less than 14 (MWh / m2 / month), it is eco-level, more than 14 (MWh / m2 / month) and less than 32 (MWh / m2 / month). If there is a standard level, and 32 (MWh / m2 / month) or more, it is classified as a waste level.

  The question presenting means 21 outputs a question regarding the energy saving behavior of the resident to the control panel 4 when the system is introduced and the like, and displays the question content on the monitor 43 of the control panel 4 so that the question regarding the energy saving behavior (for example, for one year) (Such as the amount of electricity used). When the resident looks at the question displayed on the monitor 43 of the control panel 4 and inputs an answer to this question using the input means 44, the control means 40 sends data indicating the answer content from the communication means 42 to the resident-side management apparatus 11. Send it. The response acquisition unit 22 of the residential management device 11 acquires data indicating the response content transmitted from the control panel 4 and outputs the data to the initial level estimation unit 23. As described above, in this embodiment, it is possible to acquire information related to energy saving behavior from a resident using an interactive interface. Then, the initial level estimation means 23 estimates whether the resident's power usage level corresponds to the standard level, the waste level, or the eco level based on the answer contents to the question input from the answer acquisition means 22. The estimation result is stored in the power level information storage unit 26. Here, the question presenting means 21 and the monitor 43 of the control panel 4 constitute question presenting means for presenting questions regarding the energy saving behavior of the resident to the resident. The question presenting means 21 outputs a pre-registered question to the control panel 4, but the question presenting means 21 may create a question and output it to the control panel 4. Moreover, the answer input means used for the resident to input the answer to the question is configured from the input means 44 of the control panel 4 or the like. For example, a microphone that collects the voice of the resident and a microphone are input. A voice recognition unit that recognizes voice may be provided, and an answer to the question may be input by voice.

  In the energy saving plan storage unit 27, a plurality of energy saving plans for reducing the power consumption is registered in advance. Here, the energy saving plan storage means 27 is created for each specific electrical device, each electrical device for each application, or each room corresponding to each power usage level of the standard level, waste level, and eco level. An energy conservation plan is registered. Moreover, the energy saving plan created corresponding to each power usage level is created as a plan in which the power usage amount of the target electrical device or room is reduced to the next lower power usage level.

  The energy saving action detection means 16 is based on the history of the power consumption after presentation stored in the power history / attribute storage means 24 when the residential management device 11 presents the energy saving plan to the resident. It is detected whether or not an action in accordance with is performed.

  The energy saving plan search means 17 searches the energy saving plan registered in the energy saving plan storage means 27 based on the input conditions such as the information on the power usage level inputted from the power level information storage means, the target device, and the time, and inputs them. An energy saving plan that matches the conditions is extracted and output to the notification means 18, and an update notification signal indicating that the information of the energy saving plan has been updated is output to the notification means 19.

  The notification means 18 outputs the information on the energy saving plan input from the energy saving plan search means 17 to the control panel 4. At this time, when the communication means 42 of the control panel 4 receives the information on the energy saving plan transmitted from the notifying means 18, the control means 40 controls the display of the monitor 43 and causes the monitor 43 to display the contents of the energy saving plan. In addition, when an update notification signal is input from the energy saving plan search means 17, the notification means 19 operates a notifying means 28 including a light emitting means such as a light emitting diode or a ringing means such as a speaker, thereby operating the energy saving plan. Notify the resident that the content has been updated.

  On the other hand, the center server 3 includes a data collection unit 31, a storage unit 32 (data storage unit), a correction unit 33, and a transmission unit 34 as main components.

  The data collecting unit 31 collects the history of the power consumption of the electrical equipment stored in the power history / attribute storage unit 24 from the plurality of residential management devices 11 together with the attribute information.

  The storage unit 32 stores the power usage amount collected from the plurality of residential monitoring devices 11 by the data collecting unit 31 together with the attribute information.

  The correction means 33 performs statistical processing based on the power consumption stored in the storage unit 32, and sets the reference power set for each category such as family, region, building, device, month, and time. Correct usage.

  The transmission unit 34 transmits the reference power usage amount for each classification corrected by the correction unit 33 to the plurality of residential management devices 11 and updates the reference power usage value set in each residential monitoring device 11. To do.

  Next, the operation of this system will be described with reference to the flowchart of FIG. At the time of introduction of the system (at the time of initial activation), the resident of the residence 7 performs initial setting of attribute information and inputs an answer to a question regarding energy saving behavior (step S1). That is, when the resident inputs the attribute information such as the family information, the area information, and the building information using the residence information input unit 13, the input attribute information is stored in the power history / attribute storage unit 24. Also, at the initial startup of the system, the question presenting means 21 of the residential management device 11 transmits the question content information to the control panel 4 and displays the question content on the monitor 43 of the control panel 4. When the resident inputs using the input unit 44, the response input by the input unit 44 is transmitted to the residential management device 11 and input to the initial level estimation unit 23 via the response acquisition unit 22.

  When the questionnaire regarding the initial setting and the energy saving behavior is completed, a plurality of comparison means 14 are prepared for each family, region, building, equipment, month, and time (season) from the reference power consumption storage means 25. And the attribute information registered in step S1 is read from the power history / attribute storage means 24, and attribute information (or attribute information and current The reference power usage amount that matches the season is extracted and set as the reference power usage amount of the residence 7 (step S3). In addition, the initial level estimation means 23 determines the resident's awareness of energy saving based on the answer contents acquired by the answer acquisition means 22, that is, the answer contents to the questions regarding energy saving behavior, and the power use level is three levels. Which one of (standard level, waste level, eco level) is estimated and stored in the power level information storage means 26 (step S4).

  Thereafter, when the use of the electrical equipment in the residence 7 is started, the power measuring means 12 of the residence-side management device 11 sequentially measures the power usage of each branch circuit (step S6), and the measurement result is set to a predetermined value. It is stored in the power history / attribute storage means 24 at time intervals (step S7). Since the electrical equipment connected to each branch circuit is determined to some extent, the power measuring means 12 can calculate the power usage of each electrical equipment from the power usage determined for each branch circuit.

  When the power usage amount of each electrical device is obtained, the energy saving plan search means 17 stores the power usage amount for each electrical device stored in the power history / attribute storage means 24 and the residence stored in the power level information storage means 26. The energy saving plan for realizing the energy saving target according to the power use level of the (resident) is selected from the energy saving plans stored in the energy saving plan storage means 27 (step S8), and the energy saving plan is notified from the notification means 18. Is transmitted to the control panel 4 and displayed on the monitor 43 of the control panel 4. At the same time, the energy saving plan search means 17 outputs an update notification signal to the notifying means 19, operates the notifying means 28 to notify the resident that the energy saving plan has been updated, and the energy saving plan displayed on the monitor 43. Residents can be encouraged to confirm the details of the plan.

  Table 1 below shows an example of the energy saving plan stored in the energy saving plan storage means 27. In Table 1, when the electric equipment is an air conditioner and lighting, the contents of the energy saving plan for each power usage level and each date / time are shown. The reduction target (based on the amount) by each energy saving plan is also registered. By the way, if you suppress the use of electrical equipment or stop using it to save energy, you will lose comfort and convenience. Even if the same energy saving plan as that of a high-eco-level resident is presented, the proposed content is too strict for a waste-level resident, and the proposed energy-saving plan may not be executed. In addition, even if the current power consumption is presented to the resident as a numerical value, the power usage number is not familiar to the resident. There is a problem that it is difficult to determine whether energy saving measures should be taken and it is difficult to lead to energy saving actions. Therefore, in this system, the content of the energy saving plan is changed according to the resident's power usage level. Instead of simply displaying the power usage amount, the energy saving plan is adapted to the actual power usage (power usage level). Present to the residents. For example, an energy-saving plan with a low reduction target that can be easily implemented is presented to residents at a waste level, and an energy-saving plan with a high reduction target is presented to residents at an eco-level that is not easy to implement. As a result, it becomes easier for residents to work on the proposed energy conservation plan, and energy conservation in the residential sector can be realized with certainty by executing energy conservation actions without difficulty. In addition, the energy saving plan presented to the residents at each power usage level is such that the power usage level of the dwelling unit is reduced to the power usage level one level lower. When looking at the energy conservation plan displayed in (the wording described in the information content column of Table 1), it becomes easier for residents to work on the energy conservation plan presented, and the presented energy conservation plan can be carried out without difficulty. By doing so, energy saving can be realized reliably.

  And in the residence side management apparatus 11, the process from step S6 to S9 is repeatedly performed by the predetermined time interval, and the energy-saving plan according to the electric power consumption of the object electric equipment is shown to a resident one by one. By causing the resident to execute the energy saving plan, the power consumption of the target electrical device can be reduced.

  Moreover, in the residence side management apparatus 11, in order to re-evaluate the electric power usage level of a target residence, whenever the predetermined | prescribed update period (for example, period of one day-one month) passes, the update process shown to steps S11-S13 Execute. First, in step S11, the energy saving action detection means 16 is based on the contents of the energy saving plan presented to the resident and the history of the power consumption after presentation stored in the power history / attribute storage means 24. It is detected whether or not the presented energy saving plan has been executed from the point of presentation until a predetermined time has elapsed. When the energy saving action detection means 16 determines that the presented energy saving plan has not been executed or has been executed, the energy saving plan search means 17 responds to the determination result of the energy saving action detection means 16. These energy-saving plans with low operability are excluded from the search targets (step S11), and the energy-saving plan search means 17 selects an energy-saving plan that is easy for the resident to execute, so that the resident can make an energy-saving plan. It can be executed more easily. In the present embodiment, the energy saving plan determined to have low executability is excluded from the search targets of the energy saving plan search means 17, but the energy saving plan determined to be low executability is included in the search target. When the plan search unit 17 selects an energy saving plan with low feasibility, the energy saving plan search unit 17 may perform the search again without presenting the energy saving plan to the resident. It is possible to select an energy saving plan that is easy to implement.

  Next, the comparison unit 14 compares the power usage amount for each electrical device stored in the power history / attribute storage unit 24 with the reference power usage amount (step S12), and the level determination unit 15 performs the comparison unit. Based on the comparison result of 14, the power usage level of the target device corresponds to which power usage level, and the determination result is stored in the power level information storage unit 26 for each target device (step S13). When the power usage level determination process is completed for all target devices, the processes in steps S6 to S9 are repeatedly executed until the next update period comes, and an energy saving plan for the target device is set for the resident. If the resident's power usage level improves or decreases by executing the energy conservation plan, the energy conservation plan corresponding to the power usage level at that time can be presented. As a result, it is easy for residents to work on the proposed energy conservation plan, and energy conservation can be realized reliably.

  As described above, in this system, when the system is introduced, the question presenting means 21 displays a question regarding energy saving behavior on the monitor 43 of the control panel 4, presents it to the resident, and inputs the answer to the question using the input means 44 of the control panel 4. By using it, it is possible to estimate the power usage level of the residence, and even when introducing a system where there is no actual power usage value, presenting an energy saving plan based on the estimation result of the power usage level. There is an effect that a resident can select an energy saving plan that can be tackled without difficulty.

  In the present system, the center server 3 collects the power consumption measurement results from the plurality of residential management devices 11 connected to the center server 3 via the communication network 2 and performs statistical processing on the collected measurement results. To correct the reference power usage amount, transmit the corrected reference power usage amount to the residential management device 11, and update the reference power usage value stored in the reference power usage storage means 25. So, by reflecting the amount of electricity used in multiple residences 7 in the standard electricity usage, it is possible to compare the amount of electricity used with other residences, and to give residents a sense of competition with other residences for energy saving behavior. You can have it.

  Further, in this system, the reference power usage amount storage means 25 of the residential monitoring device 11 stores the reference power usage amount for each type of electrical equipment, and the power measurement means 12 uses the power for each type of electrical equipment. Based on the result of comparing the measurement result of the power consumption and the reference power usage for each type of electrical equipment, the energy-saving plan search means 17 measures the usage amount for each type of electrical equipment. Therefore, it is easy for residents to understand the waste of electric power used for each type of electric equipment and the energy saving effect, deepen their understanding of the presented energy saving plan, and raise awareness about energy saving. Here, the power measuring means 12 measures the power usage for each type of electric equipment. For example, when measuring the power usage of an air conditioner, the power usage is measured for each unit. Alternatively, a plurality of air conditioners may be used as one group, and the power consumption may be measured in units of groups.

  The reference power usage amount storage means 25 of the residence-side monitoring device 11 stores the reference power usage amount for each room (that is, the sum of the reference power usage amounts of the electrical equipment in the room), and the power measurement means 12 The energy saving plan search means 17 measures the power usage of the electrical equipment in the room for each room, and compares the measurement result of the power usage with the reference power usage for each room. The energy saving plan may be presented in units of each room, and since the waste of electric power used by the electrical equipment in the room and the energy saving effect are known for each room, it is easy for residents to understand and the presented energy saving plan You can deepen your understanding of, and raise your awareness of energy conservation.

  Further, in the power management system of the present embodiment, the residence-side management device 11 includes the reference power usage storage unit 25, the power measurement unit 12, the comparison unit 14, the level determination unit 15, the energy saving plan storage unit 27, and the energy saving plan search unit 17. And energy saving plan presentation means (consisting of notification means 18 and the like), but functions other than the power measurement means 12 and the energy saving plan presentation means are provided on the center server 3 side, and the power measured by the residential management device 11 Based on the usage, the center server 3 may search for an energy saving plan corresponding to the power consumption level, and the resident device 11 may present the searched energy saving plan to the resident.

It is a schematic block diagram of the power management system of this embodiment. It is a schematic system configuration diagram showing the overall configuration of the above. It is explanatory drawing of the electric power usage level used for the same as the above. It is a flowchart explaining operation | movement same as the above.

Explanation of symbols

1 Integrated management panel 2 Communication network 3 Center server 4 Control panel (energy saving plan presentation means)
DESCRIPTION OF SYMBOLS 11 Residential side management apparatus 12 Electric power measurement means 14 Comparison means 15 Level judgment means 17 Energy saving plan search means 18 Notification means (energy saving plan presentation means)
25 Reference power consumption storage means 27 Energy saving plan storage means

Claims (8)

  Reference power usage storage means for storing the reference power usage of electrical equipment in the residence, power measurement means for measuring the power usage of electrical equipment in the residence, power usage measured by the power measurement means, and The power measured by the power measuring means among the power usage levels that are divided into multiple according to the difference between the actual power usage and the reference power usage, and the comparison means that compares the level with the reference power usage The level judgment means for judging which power usage level the usage amount corresponds to based on the comparison result of the comparison means, and the energy saving plan for reducing the power usage amount according to each power usage level are registered. Energy saving plan storage means and energy saving according to the power usage level determined by the level determination means from a plurality of energy saving plans registered in the energy saving plan storage means Power management system comprising: the energy saving plan retrieval means for retrieving the ghee plan, the energy-saving plan presenting means for presented energy saving plan search by energy saving plan search means dwelling persons of the dwelling.   2. The power management according to claim 1, wherein the energy saving plan storage means is preset with an energy saving plan in which the power consumption is reduced to a power usage level that is one level lower for each power usage level. system.   It was input using the question presenting means that presents the resident with questions regarding the energy-saving behavior of the resident at the time of system introduction, the answer input means used by the resident to input the answer to the presented question, and the answer input means 3. The power management system according to claim 1, further comprising initial level estimation means for estimating the power usage level of the dwelling unit based on the contents of the answer.   Power history storage means for storing a history of measurement results by the power measurement means, wherein the energy saving plan search means includes the contents of the energy saving plan presented to the resident and the power consumption after presentation stored in the power history storage means The energy saving plan is excluded from the presentation targets when the presented energy saving plan is not executed from the point of presentation of the energy saving plan until a predetermined time elapses. 4. The power management system according to any one of items 3.   The reference power consumption storage means, the power measurement means, the comparison means, the level judgment means, the energy saving plan storage means, the energy saving plan search means, and the energy saving plan presentation means are provided at least in each residence. A plurality of residential management devices and a central management device capable of communicating with a plurality of residential management devices via a communication network are provided, and the measurement result of power consumption from the residential management device is sent to the central management device. Data collecting means for collecting; data storing means for storing the collected power usage; and correcting means for correcting the reference power usage by performing statistical processing based on the power usage stored in the data storage; A transmission means for transmitting the corrected reference power consumption to the residential management device, and the reference power after correction from the central management device to each residential management device 5. An update means for updating the reference power usage stored in the reference power usage storage means to the corrected reference power usage when receiving the dose is provided. The power management system described in 1.   The reference power usage amount storage means stores a reference power usage amount for each type of electrical equipment, the power measurement means measures the power usage amount for each type of electrical equipment, and the comparison means includes: 6. The power management system according to claim 1, wherein the power usage measured by the power measurement unit is compared with the reference power usage for each type of electrical equipment. 7.   The reference power usage amount storage means stores the reference power usage amount of the electrical equipment in the room for each room in the house, and the power measuring means stores the electric power in the room for each room in the house. The power consumption of the device is measured, and the comparison means compares the power usage measured by the power measurement means with the reference power usage for each room. The power management system according to any one of 5.   The level determination means determines that the measurement result of the power consumption is the first level when the measurement result of the power consumption exceeds a predetermined range from the reference power usage, and the measurement result of the power usage is within the predetermined range from the reference power usage. The case is determined to be the second level, and the measurement result of the power consumption is determined to be the third level when the measurement result of the power consumption is small beyond the predetermined range from the reference power consumption. The power management system described in 1.

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