JP2014130624A - Energy saving diagnosis system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy saving diagnosis system capable of precisely calculating the effect of power saving achieved by replacing present electrical equipment, by reflecting the actual operational status of the present electrical equipment.SOLUTION: A facility controller 1 is connected to plural power sensors to acquire power consumption in the respective systems measured by the power sensors and stores time-series data of the measurement results acquired by the power sensors in a storage 14 of power information as power information. A central server 3 includes: a database 32 of apparatus information storing apparatus information including plural types of electrical apparatuses while associating with at least the power consumption; and a simulation section 33 that simulates the power consumption amount when current electrical apparatuses connected to the respective systems on a distribution board are replaced with different electrical apparatuses of the same type. The simulation result is transmitted from a communication section 31 to the facility controller 1 of the transmission source of the apparatus information and the power information.

Description

  The present invention relates to an energy saving diagnosis system for obtaining a power saving effect when an electric device currently in use is replaced with another electric device of the same type.

  In recent years, interest in energy saving has increased, and awareness of energy saving has increased in ordinary households, such as selecting and purchasing electric devices with low power consumption. Here, the effect of reducing the amount of power consumption (power saving) is usually achieved when replacing the electrical equipment currently used in the house with another electrical equipment of the latest type of the same type. Whether it is obtained is determined based on values such as annual power consumption described in a catalog or the like.

  However, there are various types of electrical equipment such as lighting fixtures, air conditioners (air conditioners), refrigerators, etc. in the house, and various other types of electrical equipment are released at any time. As for a device, it is very laborious to determine whether a power saving effect can be obtained based on the value of a catalog every time a new type of electric device is released. In addition, catalog values are only values when using electrical equipment under certain specific conditions, and depending on the user, using electrical equipment under conditions far from this may result in a different result from the catalog value. There is. For this reason, there may be a difference between the power saving effect obtained based on the catalog value and the power saving effect when the user actually uses the electric device.

  In order to solve this problem, an electric device (energy saving device) corresponding to the specification of the electric device is selected from the database by inputting the specification and operating time of the electric device currently used (current device). There has been proposed an energy saving diagnosis system that calculates a power saving effect (reduction of electricity charges) when an electric device is replaced (see, for example, Patent Document 1). In the invention described in Patent Document 1, the specifications (name, model, power consumption, etc.) and operating time of the current electric device are input by the user from the user terminal. Here, for example, if an air conditioner is taken as an example, the usage time of air conditioning per day is input as the operation time.

JP 2002-49723 A

  However, in the energy saving diagnostic system described above, the operation time of the electric device is input by the user, and there is often a deviation from the actual operation time of the electric device. For example, in the case of an air conditioner, it is usually not considered that the operating time per day is the same throughout the year, and the user enters an approximate value as the operating time. Deviation occurs. In other words, the power saving effect calculated in the energy saving diagnosis system does not reflect the actual operating status of the electrical equipment that is different for each user, but in the end, the user actually used the electrical equipment as in the catalog value. In some cases, there may be a discrepancy between the power saving effect and the reliability.

  The present invention has been made in view of the above-described reasons, and is an energy-saving diagnosis capable of accurately obtaining the power-saving effect obtained by replacing the electric device by reflecting the actual operation status of the electric device. The purpose is to provide a system.

  The invention of claim 1 is configured to be communicable with the equipment controller via a power sensor that measures the power consumption of the electrical equipment for each distribution board system, the equipment controller connected to the power sensor, and the network. An energy saving diagnosis system comprising a central server, wherein the facility controller includes a power information storage unit that stores time series data of measurement results of the power sensor as power information as needed, and a type of the electrical device. A device information storage unit that stores device information and a controller-side communication unit that can communicate with the central server, and stores the power information and the device information for each system of the distribution board in the center. Device information transmitted to a server and stored by the central server in association with at least power consumption of the device information including types of the plurality of electric devices Database, a server-side communication unit capable of communicating with the facility controller, and another electrical device of the same type as the current electrical device connected to each system based on the device information received from the facility controller Is selected as a candidate device from the device information database, and a simulation unit that simulates power consumption when the current electrical device is replaced with the candidate device, the simulation unit receives from the facility controller Based on the power information, the operation status of the current electrical device including at least one of the power consumption per unit period and the operation time is obtained, and the power consumption when the operation status is applied to the candidate device Is returned to the equipment controller.

  According to this configuration, the simulation unit of the central server adds another electrical device of the same type as the current electrical device connected to each system in the device information database based on the power information and device information received from the facility controller. As a candidate device, the power consumption when the current electrical device is replaced with the candidate device is simulated, and the actual operation status of the current electrical device is reflected in the simulation result. That is, by reflecting the actual operating status of different electric devices for each user, the power saving effect obtained by replacing the electric devices can be accurately obtained.

  According to a second aspect of the present invention, in the first aspect of the invention, the simulation unit includes a change in power consumption over time determined from the power information as a variation pattern in the operating status.

  According to this configuration, even when the power consumption changes with the passage of time depending on the operating state of the electrical equipment, considering the change in the power consumption, power saving can be achieved when the current electrical equipment is replaced with a candidate equipment. Can be obtained with high accuracy.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, when a new electrical device is connected to the distribution board, the facility controller communicates with the new electrical device or measures the power sensor. Recognizing that the new electric device is connected from the result, automatically acquiring the device information of the new electric device through communication with the new electric device, and the device information in the device information storage unit And a device information update unit for updating the device.

  According to this configuration, when a new electrical device is connected to the distribution board, the device information in the device information storage unit is automatically updated, so that the trouble of updating the storage information in the device information storage unit can be saved. There are advantages.

  The present invention has an advantage that the power saving effect obtained by replacing the electric device can be obtained with high accuracy by reflecting the actual operation status of the electric device in the simulation result in the simulation unit.

It is a schematic block diagram which shows the structure of Embodiment 1 of this invention. It is a schematic system block diagram which shows the whole system same as the above. It is a sequence diagram which shows the operation example same as the above. It is a flowchart which shows operation | movement of a central server same as the above. It is a sequence diagram which shows the operation example same as the above. It is a flowchart which shows operation | movement of Embodiment 2 of this invention.

(Embodiment 1)
As shown in FIG. 2, the energy saving diagnosis system of the present embodiment includes a facility controller 1 set in a house H1, a central server 3 configured to be communicable with the facility controller 1 via the Internet Ne1, A power sensor (not shown) that measures the power consumption of the device 4 for each system of the distribution board 5 is provided.

  The distribution board 5 includes a main breaker 51 and a branch breaker 52 provided for each system, and power is supplied to the electrical equipment 4 connected to each system via the branch breaker 52. Configured as follows. In the present embodiment, a description will be given assuming that one lighting device, an air conditioner (air conditioner), and an electric device 4 such as a refrigerator installed in the house are connected to each system.

  The power sensor is incorporated in each branch breaker 52 of the distribution board 5, and measures the instantaneous value of the current flowing through each system with a current transformer (not shown) and the instantaneous value of the line voltage of each system. And measure the power consumption for each system from the measurement results of these (current and voltage).

  As shown in FIG. 1, the facility controller 1 includes a controller main body 10 connected to the central server 3 via the Internet Ne1 and a viewer 20 connected to the controller main body 10 via a home LAN.

  The controller body 10 includes an interface (home interface) 11 connected to a part of the electrical equipment (lighting equipment and air conditioner) 4 in the home via the communication line L1, and monitoring control (operation state of these electrical equipment 4). A calculation processing unit 12 that performs monitoring, on / off control, and the like, and an interface (LAN interface) 13 for connecting to a viewer (home LAN) 20. The monitoring control performed by the controller main body 10 is performed in accordance with an input from a viewer 20 or a personal computer or a mobile phone terminal that can communicate with the central server 3 via the Internet Ne1.

  The controller body 10 is also connected to a power sensor through the interface 11 via a communication line, and the arithmetic processing unit 12 acquires measurement results (power consumption for each system) of each power sensor by communication. The controller main body 10 is provided with a power information storage unit 14 for storing measurement results acquired from the power sensor. The arithmetic processing unit 12 measures the power consumption (integrated value of power consumption) for each system at regular time intervals (for example, every 5 minutes), and stores the time-series data of the measurement results in the power information storage unit 14 as power information. To do.

  Further, the controller body 10 includes a communication unit (controller-side communication unit) 15 capable of communicating with the central server 3 via the Internet Ne1 and the type of the electric device 4 connected to each distribution board 5 system. And a device information storage unit 16 for storing device information including the product number. The type of the electric device 4 referred to here includes not only lighting fixtures, air conditioners, refrigerators, etc. but also performance (for tatami mats for lighting fixtures, capacity / dimensions for refrigerators, etc.). That is, the controller body 10 manages what kind of electrical equipment 4 is connected to each system of the distribution board 5 by the equipment information storage unit 16. This device information can be input from the viewer 20 by the user.

  Here, the arithmetic processing unit 12 has a function of transmitting device information and power information from the communication unit 15 to the central server 3 for each system of the distribution board 5. The device information and the power information are transmitted to the central server 3 when the user performs a predetermined operation on the viewer 20.

  The viewer 20 includes an interface 21 for connecting to the controller main body 10, a display unit 22 (here, a liquid crystal display) serving as a presentation means for presenting (displaying) various information to the user, and an operation input from the user. And an input unit (here, referred to as a touch panel) 23 that accepts. The viewer 20 is installed at a position that is easy for the user to visually recognize, such as a wall of a room (for example, a living room). The power information and device information managed by the controller main body 10 can be displayed on the display unit of the home viewer 20 by being transmitted from the controller main body 10 to the viewer 20 via the home LAN. In the viewer 20, not only the monitoring result of the electric device 4 performed by the controller main body 10 but also the power information received from the controller main body 10 is displayed on the screen of the display unit 22 for each system of the distribution board 5. Time series data of the amount of power consumed in the system (that is, the amount of power consumed by the electrical equipment 4 connected to each system) is presented to the user.

  In addition, the viewer 20 has a function of making a transmission request for power information / device information to the controller body 10 by performing a predetermined operation. Here, it is assumed that the user selects any one system (one electric device 4) and requests transmission of power information / device information. In the controller body 10 that has received the request, the power information / device information stored in the power information storage unit 14 and the device information storage unit 16 is only related to one system requested by the viewer 20. Transmit to the central server 3.

  On the other hand, the central server 3 consumes at least device information including types and product numbers of the communication unit 31 (server side communication unit) 31 that can communicate with the equipment controller 1 via the Internet Ne1 and the plurality of electric devices 4. A device information database 32 stored in association with power (rated value) is included. In the device information database 32, information on the electric appliance 4 for home use is stored in a wide range from the old electric device 4 that was released several years ago to the latest electric device 4, and the information is stored in the device information database 32. Shall be updated from time to time. Here, the device information database 32 is provided integrally with the main body of the central server 3. However, the device information database 32 is provided separately from the main body of the central server 3. It is good also as a structure which can be communicated by.

  Further, the central server 3 includes a simulation unit 33 for simulating the power consumption when the current electrical device 4 connected to each system of the distribution board 5 is replaced with another electrical device 4 of the same type, and a simulation result The content generation unit 34 generates content data for causing the viewer 20 to display the content data.

  When the central server 3 receives the device information and the power information from the equipment controller 1 at the communication unit 31, the simulation unit 33 sets another electrical device 4 of the same type as a candidate device based on the received device information, as a device information database. 32 is selected from among the electric devices 4 registered in 32. In other words, the candidate device is selected from the same type of electrical device 4 as the current electrical device 4, and the lighting equipment, the air conditioner, the refrigerator, etc., of course, match the performance (lighting The number of tatami mats for appliances and the capacity and size for refrigerators can be substituted for the current electrical equipment 4. In the present embodiment, at least one energy saving performance exceeds that of the current electrical device 4 and one unit for one electrical device 4 according to a predetermined rule so that the current electrical device 4 can be substituted. The candidate device is selected. When a plurality of candidate devices are considered, only one device with a higher priority among them is selected as a candidate device.

  Further, a plurality of candidate devices may be selected. In this case, it is conceivable that not only the electrical device 4 having the same performance as the current electrical device 4 but also the electrical device 4 having higher performance or lower performance than the current electrical device 4 is selected as a candidate device.

  The simulation unit 33 reads the device information of the electrical device 4 that is the candidate device selected in this way and the power consumption corresponding thereto from the device information database 32. Further, the simulation unit 33 calculates the operating time of the current electrical device 4 from the power information received together with the device information, and uses the other electrical device (candidate device) 4 over the same operating time. Simulate the amount of power consumed when That is, since the power information is time-series data of the power consumption amount for each system, the on / off state of the current electrical equipment 4 connected to the system can be estimated from the power information, and as a result, The operating time during which the electric device 4 is actually operating (consuming electric power) can be obtained.

  Here, for example, in an electric device 4 such as an air conditioner, the operating state (strength) of the electric device 4 varies as needed depending on the room temperature, the set temperature, and the like, and accordingly, the power consumption in each time zone is also changed as needed. fluctuate. Therefore, for the system connected to the electrical equipment 4 whose operation state varies during operation as described above, the operation time is not simply calculated from the power information, but the change in the operation state over time is used as a variation pattern. Shall be estimated. The simulation unit 33 simulates the power consumption that is assumed when the estimated variation pattern is applied to the other electrical device 4. Specifically, the simulation unit 33 calculates a power consumption amount by multiplying the rated value of the power consumption of the other electric device 4 by a ratio corresponding to the variation pattern for each time zone, and calculates the power consumption. The total amount of power is taken as the simulation result. As described above, the operation state of the electric device 4 that cannot be normally recognized by the user because it is automatically controlled by estimating the operating state (strongness, etc.) of the electric device 4 from the fluctuation pattern of the power consumption amount. It becomes possible to estimate.

  The result of the simulation performed by the simulation unit 33 is returned from the communication unit 31 to the equipment controller 1 that is the transmission source of the device information and the power information. In the facility controller 1 that has received the simulation result, for example, the power consumption when the electrical device 4 is replaced is displayed on the viewer 20 in a format that can be compared with the power consumption of the current electrical device 4. Furthermore, by calculating the ratio between the power consumption of the current electrical device 4 and the power consumption when the electrical device 4 is replaced, how much the power consumption is improved by replacing the electrical device 4 (how much reduction) You may make it display concretely whether it can do. In addition to this, it may be possible to display the power consumption by converting it into an electricity bill or the like.

  The simulation result is not limited to that displayed on the viewer 20, and may be displayed on a terminal device that is separate from the viewer 20 and can communicate with the viewer 20. In this case, the terminal device constitutes the equipment controller 1 together with the viewer 20 and the controller main body 10.

  The operation of the energy saving diagnostic system having the above configuration will be described below with reference to the sequence diagram of FIG.

  The power sensor provided for each system of the distribution board 5 periodically transmits each measurement result (power consumption) to the controller main body 10. The controller body 10 that has received the measurement result from the power sensor stores the time series data of the measurement result as power information in the power information storage unit 14 as needed. Here, when the user performs a predetermined operation on the viewer 20, a transmission request for power information / device information is made from the viewer 20 to the controller body 10, and the controller body 10 that has received the request receives the power information storage unit 14. The power information / device information in the device information storage unit 16 is transmitted to the central server 3. At this time, the power information is transmitted in association with the information of the electrical equipment 4 connected to each system in the controller body 10, whereby the central server 3 grasps the power consumption of each electrical equipment 4. can do.

  When the central server 3 receives the data (power information / device information) of the electric device 4 from the controller body 10, the central server 3 starts a simulation of the power consumption amount in the simulation unit 33. That is, the central server 3 receives the data as shown in FIG. 4 (S1), and then estimates the operating status (operating state) of the electrical device 4 from the received power information (S2). Here, the operating status includes not only the on / off state of the electric device 4 but also a fluctuation pattern such as strength.

  Furthermore, based on the received device information, the simulation unit 33 acquires device information of another electric device (comparison target device) 4 of the same type and power consumption corresponding thereto from the device information database 32 (S3). Then, the simulation unit 33 estimates the power consumption when the operation status estimated in step S2 is applied to the other electrical equipment 4 (S4), and returns the simulation result to the equipment controller 1 (S5). . The simulation result in the central server 3 is downloaded as content data from the central server 3 by the viewer 20 via the Internet Ne1 and displayed on the screen.

  According to the energy saving diagnostic system having the configuration described above, the current electrical device 4 is replaced with another new electrical device 4 based on the power consumption when the user actually uses the current electrical device 4. In this case, it is possible to present the power consumption (power saving amount) that is expected to improve. That is, instead of making a comparison based only on the rated value of a catalog or the like, a case where the user actually uses the electric device 4 is obtained by reflecting the actual operation status of the electric device 4 that is different for each user, Deviation from the power saving effect is reduced. As a result, the power saving effect obtained by replacing the electric device 4 can be obtained with higher accuracy than in the past. In addition, since the central server 3 simulates the power saving effect when the electric device 4 is replaced in consideration of the fluctuation (variation pattern) of the operation state of the electric device 4, the simulation is performed only from the operating time of the electric device 4. Compared to the case, the reliability of the simulation result is further increased.

  In addition, the operating status of the current electrical device 4 that the simulation unit 33 obtains based on the power information is not limited to the operating time, but may be the power consumption per unit period (for example, one day). In this case, the simulation unit 33 simulates the power consumption when the power consumption per unit period of the current electrical device 4 obtained as the operating status is applied to the other electrical device (candidate device) 4. Specifically, the simulation unit 33 is a unit period when the electrical equipment 4 is replaced by multiplying the ratio of the power consumption rating values of the current electrical equipment 4 and the other electrical equipment 4 to the operating status. Simulate the power consumption per unit.

  By the way, in the present embodiment, when the electric device 4 connected to the distribution board 5 is added, the electric device 4 can automatically recognize the device information of the added electric device 4. The facility controller 1 is provided with a function as a device information update unit that recognizes the addition of 4.

  Specifically, as shown in the sequence diagram of FIG. 5, when a new electrical device 4 is connected to any system of the distribution board 5 and energization is started, a connection notification is sent from the electrical device 4 together with the device information. For example, it is transmitted to the viewer 20 by power line communication. Upon receiving the connection notification, the viewer 20 requests the controller body 10 for power information for each system in order to identify which system of the distribution board 5 the electrical device 4 that is the source of the connection notification is connected to. .

  When the viewer 20 receives the power information for each system as a response from the controller main body 10, the viewer 20 searches for a system with increased power consumption using the power information, and the electric device 4 is connected to the system with increased power consumption. Judged as having been added. When the system to which the electric device 4 is added is identified, the viewer 20 transmits the system and the device information in association with each other to the controller main body 10, and the device information corresponding to the system is updated in the device information storage unit 16. To be.

  Note that the recognition that the electric device 4 has been added is that the equipment controller 1 searches for the electric device 4 having device information that does not exist in the device information storage unit 16 when a predetermined operation is performed on the viewer 20. You may make it carry out. In addition, the identification of the system to which the electric device 4 is added is not limited to the indirect method using the power consumption measurement result for each system as described above, and a direct method using communication such as power line communication is adopted. May be.

(Embodiment 2)
In the energy saving diagnosis system of the present embodiment, when the simulation unit 33 of the central server 3 simulates the power consumption when the electric device 4 is replaced, the candidate device has a work amount equivalent to that of the current electric device 4. The difference from the energy saving diagnosis system of the first embodiment is that the amount of power consumption required for work is obtained.

  Here, the information stored in the device information database 32 in the central server 3 in association with the device information is not only the rated value of the power consumption but also the operating state of the electric device 4 (for example, strength in the case of an air conditioner). It also includes operational efficiency that represents the correspondence between power consumption and workload. The amount of work here means the amount of work performed by the electric device 4 consuming electric energy. For example, in the case of an air conditioner, how much room is cooled and how much is cooled. It corresponds to the amount. The operating efficiency means the relationship of how much work is performed with respect to the electric energy (power consumption) consumed by the electric equipment 4, and in the case of an air conditioner, the cooling capacity (kcal) corresponds to the operating efficiency. To do. If the operation state is a continuous value, the power consumption amount and the work amount are represented by values at each stage when the operation state is divided into a plurality of stages, or approximate expressions.

  The central server 3 converts the power information sent from the equipment controller 1 into a work amount using the operation efficiency stored in the device information database 32 in the simulation unit 33, and sums up the work amount within a certain period. The work amount of work performed by the electric device 4 is estimated. Here, in the simulation unit 33, based on the data converted into the work amount, the power consumption necessary for causing another electric device (candidate device) 4 of the same type to perform work of the same work amount using the operation efficiency. The quantity is calculated, and the calculation result is returned to the equipment controller 1 as a simulation result. Note that the simulation unit 33 may also calculate an operation time required for the candidate device to perform the above-mentioned work amount.

  In the present embodiment, an environment information database (not shown) for receiving and storing detection results such as sunrise time, sunset time, sunshine hours, temperature, humidity, weather, and the like from the equipment controller 1 as environment information. Is added to the central server 3. The environmental information is detected by an illuminance sensor, a temperature sensor, or the like installed in the house, and the detection result is acquired by the equipment controller 1. By providing the environmental information database in the central server 3, the simulation unit 33 takes into account changes in the operating efficiency of the electrical equipment 4 due to environmental factors such as the temperature (for example, the cooling effect becomes worse if the temperature is high). The amount of work can be corrected. Thus, by correcting the work amount, the accuracy of the simulation of the power consumption amount in the simulation unit 33 can be further increased.

  Furthermore, the equipment controller 1 recognizes the operating state of the electric device 4 to be controlled, such as a lighting fixture, an air conditioner, floor heating, a blind, and an electric lock. Here, the operation history of the electric device 4 recognized by the equipment controller 1 is stored in a history storage unit (not shown) provided in the equipment controller 1.

  The facility controller 1 transmits a history of operation status (operation history) of the recognized electrical device 4 to the central server 3 simultaneously with transmission of the power information. The central server 3 uses the received operation history for power information analysis. That is, as an example, the equipment controller 1 provides a security function (operation of a security camera or notification operation when an electric lock is unlocked / unlocked) in a network system constructed together with an electrical device 4 for security. The security function is set when the user goes to bed or goes out. Therefore, it is possible to estimate the user's sleeping time, staying home time, etc. from the operation history of the electric appliance 4 for crime prevention, and further use of air conditioning at the time of user's sleeping from the relationship with the operation history of the other electric device 4. A user's action pattern, such as presence or absence, can be estimated.

  Therefore, the simulation unit 33 considers the estimated user behavior pattern and corrects the work amount so that the change in the operation efficiency of the electric device due to the behavior pattern is reflected in the work amount. More accurately estimate the power saving effect of the replacement. For example, if the user turns on the lighting equipment for crime prevention and goes out, considering that it can suppress wasteful power consumption during the day if it is replaced with a lighting equipment with a brightness sensor, etc. By simulating the effect of power saving, more accurate simulation becomes possible. In addition, since the user's behavior pattern can also estimate the time period during which the user uses each electrical device 4, even if the unit price of the electricity charge varies between day and night, the electricity charge that can be reduced considering the difference in the unit price. It can also be presented.

  It is also conceivable to improve the accuracy of the simulation by considering the relationship between the environmental information and the user's behavior pattern. For example, with regard to the electric device 4 made of a lighting fixture, the user tends to turn the electric device 4 on and off at a brightness level based on the sunrise time, sunset time, sunshine time, weather, and the on / off history of the electric device 4. It is possible to estimate whether it is present, and for example, it is possible to predict an annual operation time. In addition, regarding the electrical equipment 4 composed of the air conditioner, the temperature / humidity and the operating status of the electrical equipment 4 indicate, for example, how much temperature / humidity the user tends to feel uncomfortable and turn on the cooling. Can be estimated. As a result, it is possible to predict the power consumption more accurately for each user.

  Hereinafter, the operation of the central server 3 in the present embodiment will be described with reference to the flowchart of FIG.

  The central server 3 receives the data (power information / device information) of the electric device 4 from the controller body 10 (S11), and then estimates the operating status (operating state) of the electric device 4 from the received power information (S12). ). Here, the operating status includes not only the on / off state of the electric device 4 but also a fluctuation pattern such as strength.

  Next, the simulation unit 33 acquires the operating efficiency (relationship between the power consumption and the work amount) of the current electrical equipment 4 from the equipment information database 32 (S13), and based on the power information based on the obtained information. The work amount of work performed by the electrical device 4 is calculated (S14). Here, the simulation unit 33 acquires environmental information (weather data) from the environmental information database (S15), and performs a work correction calculation according to the environmental information (S16).

  On the other hand, based on the received device information, the simulation unit 33 acquires device information of another electric device (comparison target device) 4 of the same type and power consumption corresponding thereto from the device information database 32 (S17). . Here, the simulation unit 33 selects an electric device 4 capable of an operation suitable for the user's behavior pattern (S18), and when the electric device 4 is replaced with the electric device 4, the work having the same amount of work as the current electric device 4 is performed. The amount of power consumption required to make the error is estimated (S19). At this time, the simulation unit 33 also calculates the power consumption when the electric device 4 is operated according to the user's behavior pattern (S20), and returns the simulation result to the equipment controller 1 (S21).

  According to the energy saving diagnosis system of the present embodiment described above, when the electric device 4 is replaced, the amount of power consumption required to make the work equivalent to that of the current electric device 4 is obtained. It is possible to accurately estimate the power saving effect when 4 is replaced. That is, since the simulation unit 33 simulates the power consumption on a work basis, even if there is a difference in operating efficiency between the current electrical device 4 and the candidate device, the current electrical power is considered in consideration of this difference. The power saving effect when the device 4 is replaced with a candidate device can be accurately estimated. Further, by taking into account environmental information, user behavior patterns, and the like, the deviation from the power saving effect when the user actually uses the electric device 4 can be further reduced.

  Other configurations and functions are the same as those of the first embodiment.

DESCRIPTION OF SYMBOLS 1 Equipment controller 3 Central server 4 Electric equipment 5 Distribution board 14 Power information storage part 15 (Controller side) Communication part 16 Equipment information storage part 22 Display part (presentation means)
31 (Server side) Communication unit 32 Device information database 33 Simulation unit Ne1 Internet

Claims (3)

A power sensor for measuring the power consumption of the electrical equipment for each distribution board system, a facility controller connected to the power sensor, and a central server configured to be able to communicate with the facility controller via a network An energy saving diagnostic system,
The facility controller includes a power information storage unit that stores time series data of measurement results of the power sensor as power information as needed, a device information storage unit that stores device information including the type of the electrical device, and the central server A controller-side communication unit capable of communicating with each other, and transmitting the power information and the device information to the central server for each system of the distribution board,
The central server includes a device information database that stores at least the device information including types for the plurality of electric devices in association with power consumption, and a server-side communication unit that can communicate with the facility controller; Based on the equipment information received from the equipment controller, select another electrical equipment of the same type as the current electrical equipment connected to each system as a candidate equipment from the equipment information database, and the current electrical equipment A simulation unit that simulates power consumption when the candidate device is replaced,
Based on the power information received from the facility controller, the simulation unit obtains the operating status of the current electrical device including at least one of power consumption per unit period and operating time, An energy-saving diagnostic system characterized by simulating power consumption when applied to a candidate device and returning the simulation to the equipment controller.   The energy saving diagnosis system according to claim 1, wherein the simulation unit includes a change in power consumption over time obtained from the power information as a variation pattern in the operation status.   When the new electrical device is connected to the distribution board, the facility controller recognizes that the new electrical device is connected from the communication with the new electrical device or the measurement result of the power sensor, The apparatus information update unit for automatically acquiring the device information of the new electric device through communication with the new electric device and updating the device information of the device information storage unit. 3. The energy saving diagnostic system according to 1 or 2.

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