JP2014011825A - Display device and display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device and display method for enabling a user to simply perform apparatus use scheduling.SOLUTION: A display unit 230 displays a target line showing the transition of a target value of used power within a predetermined period and an object showing a used power amount of an apparatus in a coordinate space expressed using a first axis showing time and a second axis showing power. The object has a region surrounded by: the lower side which extends in parallel with the first axis and shows a time length from a use start time point of an apparatus to a use end time point of the apparatus; and a line which shows the transition of used power of the apparatus from the use start time point of the apparatus to the use end time point of the apparatus. A control unit 240 performs apparatus use scheduling by arranging objects in the coordinate space.

Description

  The present invention relates to a display device and a display method.

  In Japan, the total power charge for high-voltage power receivers is determined by the basic charge and the electricity charge. The basic charge is determined based on the peak power usage amount that is the maximum value of the power usage amount measured every past predetermined period (for example, 30 minutes). On the other hand, the electric energy charge is determined based on the total electric power consumption in the calculation target period.

  In such a method of determining a power charge, it is important to reduce the amount of power used as a whole, but it is desirable to use a device so that the amount of power used in a predetermined period does not exceed a target value.

  Therefore, based on the data obtained from the watt hour meter provided for each power receiver, the accumulated power usage amount within the predetermined period at the end of the predetermined period is predicted, and the predicted value of the accumulated power usage exceeds the target value When it is determined, a control device is known that stops the operation of some devices and suppresses the amount of power used (for example, Patent Document 1).

JP 2007-129837 A

  However, in the control device described above, the operation of some devices is automatically stopped in order to prevent the accumulated power consumption during the predetermined period from exceeding the target value. That is, the operation of the device that is not assumed by the user is stopped.

  Accordingly, the present invention has been made to solve the above-described problems, and provides a display device and a display method that enable a user to easily avoid an operation stoppage that is not assumed. The purpose is to do.

  The display device according to the first feature displays an image for scheduling the use of a device during a predetermined period. In a coordinate space represented by a first axis representing time and a second axis representing power, the display device displays a target line representing a transition of a target value of power consumption within the predetermined period, and a power consumption amount of the device. A display unit that displays an object to be represented, and a control unit that performs use scheduling of the device by arranging the object on the coordinate space, the object extending in parallel with the first axis, and the device The lower side indicating the length of time from the start of use of the device to the end of use of the device, and a line representing the transition of the power usage of the device between the start of use of the device and the end of use of the device, It has an enclosed area.

  In the first feature, the display unit displays the target line so as to have a negative slope during the predetermined period.

  In the first feature, the object has an upper side extending in parallel with the first axis, the display unit displays the first object and the second object as the object, and the control unit includes: In the state in which the lower side of the second object is in contact with the upper side of the first object and is displayed on the display unit in a state of protruding out of the second object, any object below the second object If there is a blank area that is not arranged, the second object is deformed and displayed so as to fill the blank area.

  In the first feature, when the object is instructed to move in the coordinate space, the control unit controls to move downward from the position instructed to move.

  1st characteristic WHEREIN: The said display part is a display apparatus which has a touchscreen, Comprising: The said control part performs movement control of the display position of the said object based on the contact instruction | indication to the said object.

  In the first feature, when the control unit determines that the target line is exceeded when the object is displayed for a predetermined period, the control unit automatically moves the object during a predetermined period before or after the predetermined period. Let

  In the first feature, the control unit displays a predetermined period for scheduling and a predetermined period before and after the predetermined period on the display unit.

  The display method according to the second feature displays an image for scheduling the use of a device during a predetermined period. The display method includes: a target line that represents a transition of a target value of power used within the predetermined period in a coordinate space represented by a first axis that represents time and a second axis that represents power; An object to be represented, and a step of scheduling the use of the device by arranging the objects on the coordinate space, wherein the device is used from the start of use of the device to the end of use of the device. Is represented by the lower side extending in parallel with the first axis, the transition of the power consumption of the device from the start of use of the device to the end of use of the device is represented by the upper line, and the lower side And the object are displayed in a region surrounded by the upper line.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide a display device and a display method that enable a user's simple operation to avoid an operation stop of a device that is not assumed by the user.

FIG. 1 is a diagram illustrating an energy management system 100 according to the first embodiment. FIG. 2 is a diagram illustrating the customer 10 according to the first embodiment. FIG. 3 is a diagram illustrating the HEMS 200 according to the first embodiment. FIG. 4 is a diagram illustrating a display mode according to the first embodiment. FIG. 5 is a diagram illustrating a display mode according to the first embodiment. FIG. 6 is a diagram showing a display mode according to the first embodiment. FIG. 7 is a diagram illustrating a display method according to the first embodiment.

  Hereinafter, a display device according to an embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

  However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

[First Embodiment]
(Energy management system)
Hereinafter, the energy management system according to the first embodiment will be described. FIG. 1 is a diagram illustrating an energy management system 100 according to the first embodiment.

  As shown in FIG. 1, the energy management system 100 includes a customer 10, a CEMS 20, a substation 30, a smart server 40, and a power plant 50. The customer 10, the CEMS 20, the substation 30 and the smart server 40 are connected by a network 60.

  The consumer 10 includes, for example, a power generation device and a power storage device. The power generation device is a device that outputs electric power using fuel gas, such as a fuel cell. The power storage device is a device that stores electric power, such as a secondary battery.

  For example, the customer 10 may be a single-family house, an apartment house such as a condominium, a commercial facility such as a building, or a factory.

  In the first embodiment, a customer group 10 </ b> A and a customer group 10 </ b> B are configured by a plurality of consumers 10. The consumer group 10A and the consumer group 10B are classified by, for example, a geographical area.

  The CEMS 20 controls interconnection between the plurality of consumers 10 and the power system. The CEMS 20 may be referred to as a CEMS (Cluster / Community Energy Management System) in order to manage a plurality of consumers 10. Specifically, the CEMS 20 disconnects between the plurality of consumers 10 and the power system at the time of a power failure or the like. On the other hand, the CEMS 20 interconnects the plurality of consumers 10 and the power system when power is restored.

  In the first embodiment, a CEMS 20A and a CEMS 20B are provided. For example, the CEMS 20A controls interconnection between the customer 10 included in the customer group 10A and the power system. For example, the CEMS 20B controls interconnection between the customer 10 included in the customer group 10B and the power system.

  The substation 30 supplies electric power to the plurality of consumers 10 via the distribution line 31. Specifically, the substation 30 steps down the voltage received from the power plant 50.

  In the first embodiment, a substation 30A and a substation 30B are provided. For example, the substation 30A supplies power to the consumers 10 included in the consumer group 10A via the distribution line 31A. For example, the substation 30B supplies power to the consumers 10 included in the consumer group 10B via the distribution line 31B.

  The smart server 40 manages a plurality of CEMSs 20 (here, CEMS 20A and CEMS 20B). The smart server 40 also manages a plurality of substations 30 (here, the substation 30A and the substation 30B). In other words, the smart server 40 comprehensively manages the customers 10 included in the customer group 10A and the customer group 10B. For example, the smart server 40 has a function of balancing the power to be supplied to the consumer group 10A and the power to be supplied to the consumer group 10B.

  The power plant 50 generates power using thermal power, wind power, hydraulic power, nuclear power, and the like. The power plant 50 supplies power to the plurality of substations 30 (here, the substation 30A and the substation 30B) via the power transmission line 51.

  The network 60 is connected to each device via a signal line. The network 60 is, for example, the Internet, a wide area network, a narrow area network, a mobile phone network, or the like.

(Customer)
Below, the consumer which concerns on 1st Embodiment is demonstrated. FIG. 2 is a diagram illustrating details of the customer 10 according to the first embodiment.

  As shown in FIG. 2, the customer 10 includes a distribution board 110, a load 120, a PV unit 130, a storage battery unit 140, a fuel cell unit 150, a hot water storage unit 160, and an EMS 200.

  Distribution board 110 is connected to distribution line 31 (system). Distribution board 110 is connected to load 120, PV unit 130, storage battery unit 140, and fuel cell unit 150 via a power line.

  The load 120 is a device that consumes power supplied via a power line. For example, the load 120 includes devices such as a refrigerator, lighting, an air conditioner, and a television. The load 120 may be a single device or may include a plurality of devices.

  The PV unit 130 includes a PV 131 and a PCS 132. The PV 131 is an example of a power generation device, and is a solar power generation device that generates power in response to reception of sunlight. The PV 131 outputs the generated DC power. The amount of power generated by the PV 131 changes according to the amount of solar radiation applied to the PV 131. The PCS 132 is a device (Power Conditioning System) that converts DC power output from the PV 131 into AC power. The PCS 132 outputs AC power to the distribution board 110 via the power line.

  In the first embodiment, the PV unit 130 may have a pyranometer that measures the amount of solar radiation irradiated on the PV 131.

  The PV unit 130 is controlled by an MPPT (Maximum Power Point Tracking) method. Specifically, the PV unit 130 optimizes the operating point (a point determined by the operating point voltage value and the power value, or a point determined by the operating point voltage value and the current value) of the PV 131.

  The storage battery unit 140 includes a storage battery 141 and a PCS 142. The storage battery 141 is a device that stores electric power. The PCS 142 is a device (Power Conditioning System) that converts AC power supplied from the distribution line 31 (system) into DC power. Further, the PCS 142 converts DC power output from the storage battery 141 into AC power.

  The fuel cell unit 150 includes a fuel cell 151 and a PCS 152. The fuel cell 151 is an example of a power generation device, and is a device that outputs electric power using fuel gas. The PCS 152 is a device (Power Conditioning System) that converts DC power output from the fuel cell 151 into AC power.

  The fuel cell unit 150 operates by load following control. Specifically, the fuel cell unit 150 controls the fuel cell 151 so that the power output from the fuel cell 151 becomes the target power for load following control.

  The hot water storage unit 160 is an example of a heat storage device that converts electric power into heat, accumulates heat, and stores heat generated by a cogeneration device such as the fuel cell unit 150 as hot water. Specifically, the hot water storage unit 160 has a hot water storage tank, and warms water supplied from the hot water storage tank by exhaust heat generated by the operation (power generation) of the fuel cell 151. Specifically, the hot water storage unit 160 warms the water supplied from the hot water storage tank and returns the warmed hot water to the hot water storage tank.

  The EMS 200 controls the PV unit 130, the storage battery unit 140, the fuel cell unit 150, and the hot water storage unit 160. Specifically, the EMS 200 is connected to the PV unit 130, the storage battery unit 140, the fuel cell unit 150, and the hot water storage unit 160 via signal lines, and the PV unit 130, the storage battery unit 140, the fuel cell unit 150, and the hot water storage unit. 160 is controlled. The EMS 200 controls the power consumption of the load 120 by controlling the operation mode of the load 120.

  The EMS 200 is connected to various servers via the network 60. Various servers store, for example, information (hereinafter referred to as energy charge information) such as the unit price of power supplied from the grid, the unit price of power received from the grid, and the unit price of fuel gas.

  Or various servers store the information (henceforth energy consumption prediction information) for predicting the power consumption of the load 120, for example. The energy consumption prediction information may be generated based on, for example, the past power consumption actual value of the load 120. Alternatively, the energy consumption prediction information may be a predetermined standard model value of the power consumption of the load 120.

  Or various servers store the information (henceforth PV power generation amount prediction information) for predicting the power generation amount of PV131, for example. The PV power generation prediction information may be a predicted value of the amount of solar radiation irradiated on the PV 131. Alternatively, the PV power generation prediction information may be weather forecast, season, sunshine time, and the like.

  Specifically, as illustrated in FIG. 3, the EMS 200 includes a reception unit 210, a transmission unit 220, a display unit 230, and a control unit 240. In the first embodiment, the EMS 200 is an example of a display device.

  The receiving unit 210 receives various signals from a device connected via a signal line. For example, the receiving unit 210 receives information indicating the power generation amount of the PV 131 from the PV unit 130. The receiving unit 210 receives information indicating the storage amount of the storage battery 141 from the storage battery unit 140. The receiving unit 210 receives information indicating the power generation amount of the fuel cell 151 from the fuel cell unit 150. The receiving unit 210 receives information indicating the amount of hot water stored in the hot water storage unit 160 from the hot water storage unit 160.

  In the first embodiment, the reception unit 210 may receive energy charge information, energy consumption prediction information, and PV power generation amount prediction information from various servers via the network 60. However, the energy fee information, the energy consumption prediction information, and the PV power generation amount prediction information may be stored in the EMS 200 in advance.

  The transmission unit 220 transmits various signals to a device connected via a signal line. For example, the transmission part 220 transmits the signal for controlling the PV unit 130, the storage battery unit 140, the fuel cell unit 150, and the hot water storage unit 160 to each apparatus. The transmission unit 220 transmits a control signal for controlling the load 120 to the load 120.

  The display unit 230 displays a coordinate space expressed by a first axis and a second axis that are orthogonal to each other, a target line that represents a transition of a target value of power used at each time point included in a predetermined period, and a power consumption of the device. An object to be displayed is displayed under the control of the control unit 240. Here, the first axis displayed on the display unit 230 is a time axis, and displays a time zone for scheduling the use of the device. The first axis also displays a predetermined period (for example, 30 minutes) that affects the basic fee. And the 2nd axis | shaft displayed on the display part 230 displays electric power used. In addition, the display unit 230 has a touch panel type operation unit, and sends a signal related to coordinates touched by the user to the control unit 240, and processing / calculation based on the signal is performed by the control unit 240. Based on an instruction from the unit 40, the display content of the display unit 230 is updated.

  The control unit 240 controls the load 120, the PV unit 130, the storage battery unit 140, the fuel cell unit 150, and the hot water storage unit 160. In addition, an arithmetic processing based on a user operation on the display unit 230 and an update of display contents are also instructed.

  Furthermore, in 1st Embodiment, the control part 240 controls operation | movement of the load 120 based on the scheduling screen which the display part 230 displays. Specifically, the control unit 240 recognizes the display position of the object in the coordinate space, extracts the operation start time and end time of the load 120 based on the display position of the object, and stores them as a schedule. To control the operation of the load 120.

  Here, the predetermined period that affects the basic charge will be described. The total power charge is calculated by the following process according to two systems of a basic charge and a power charge.

  First, the basic fee is determined based on the amount of power in a past predetermined period (for example, 30 minutes). That is, the amount of power (the amount of power used) for 30 minutes is measured by the maximum demand power meter (demand meter) connected to the distribution board 110. Then, the average power consumption (kW) for 30 minutes is calculated. This average power consumption is called the 30 minute demand value. The maximum 30-minute demand value in one month is called the maximum demand power (maximum demand value) for the month. Then, the maximum demand value of the month or the largest value among the maximum demand values during the past year is used for calculation of the basic charge. That is, if a large demand value is generated even once in a month or year, a basic charge using the demand value is applied for the next month or the next year. In this way, the basic fee is determined.

  On the other hand, the electric energy charge is determined based on the electric power consumption in the calculation target period (generally one month or one year). That is, the amount of electric power charges during the period for calculating the electric power rate is a metered amount. In such a method of determining the power rate, it is desirable to use the device so that the amount of power used in a predetermined period does not exceed the target value.

  In the first embodiment, the object extends in parallel with the first axis, the lower side indicating the time length from the start of use of the device to the end of use of the device, and from the start of use of the device to the end of use of the device. And a line surrounded by a line representing the transition of the power consumption of the devices. That is, the area of the object represents the amount of power used by the device. Further, the area surrounded by the target line and the first axis represents the target value of the power consumption during the predetermined period. Therefore, when scheduling the use of the device, if the object can be displayed in the area surrounded by the target line and the first axis, the power usage amount of the device must exceed the target value of the power usage amount in the predetermined period. Judgment can be made.

  In the first embodiment, the display unit 230 may display the target line so as to have a negative inclination during a predetermined period.

  In the first embodiment, the object may have an upper side extending in parallel with the first axis. The display unit 230 may display the first object and the second object as objects. In such a case, the display unit 230 is in a state where the lower side of the second object is in contact with the upper side of the first object and the second object is displayed on the display unit 230 in a state of protruding sideways. When there is a blank area below which no object is arranged, the second object may be modified and displayed so as to fill the blank area.

(Display mode)
Hereinafter, the display mode according to the first embodiment will be described. 4 to 6 are diagrams showing display modes according to the first embodiment.

  FIG. 4 shows a transition of a target value of power used at each time point included in a predetermined period in a coordinate space represented by a first axis representing time and a second axis representing power and a coordinate space defined by the coordinates. A target line and an object representing the amount of power used by the device are displayed.

  On the first axis, a time zone for scheduling is displayed. In FIG. 4, a scale is displayed every unit time from 12:00 (for example, every 10 minutes). In the coordinate space, a line specifying a predetermined time is displayed every predetermined period (for example, 30 minutes).

  The target line representing the transition of the target value of power used at each time included in the predetermined period is a line connecting the target values of power used (instantaneous values) at each time included in the predetermined period. The area of the region surrounded by the axis represents the target value of the amount of power used (integrated value) in a predetermined period. The target line is displayed as a different line for each predetermined period. In the first embodiment, when the predetermined period ends, the used electric energy is reset, and the target value of the used electric energy is also reset. When the next predetermined period starts, a target line different from the completed predetermined period is displayed.

  In FIG. 4, the target line is displayed with a negative slope, but the present invention is not limited to this. The target line may be displayed as a line representing a constant value from the start point to the end point of the predetermined period, that is, as a line extending in parallel with the first axis. Further, the target line may be displayed as a line whose slope changes between the start time and the end time of the predetermined period.

  The lower side of the object extends in parallel with the first axis and indicates the length of time from the start of use of the device to the end of use of the device. The upper side of the object is a line representing the transition of the power consumption of the device from the start of use of the device to the end of use of the device. A region surrounded by the upper and lower sides of the object represents the amount of power used during the usage time of the device. The lower side of the object may be displayed by automatically inputting a past actual value of power usage of the device. In FIG. 4, the object is displayed as a rectangle having the same height (that is, the instantaneous value of the power used at each point of the device usage time) over the entire length of the lower side (that is, the device usage time length). It is not limited to this. For example, when the power consumption changes with the lapse of the usage time of the device, the upper side of the object may be displayed as a staircase line.

In FIG. 4, the control unit 240 displays a large number of objects O _{1 to} O _N of scheduled devices on the display unit 230. In the following description, the objects O _{1 to} O _N are displayed on the display unit 230 according to instructions from the control unit 240. Each of the objects O _{1 to} O _N has an upper side extending in parallel with the first axis. The object before being displayed in the coordinate space is displayed in the box of the scheduling-scheduled device on the right shoulder of FIG. For example, the object is selected by touching an object O ₁ having a long lower side (that is, an object representing a device used continuously for a long time) from among the objects displayed in the box of the scheduled device. If the touched state is maintained in the coordinate space and is moved slightly downward (swept), the display position is moved to the location where the image of the object O ₁ is also touched in conjunction with the movement. Incidentally, at this time, the control unit 240 grasps the amount of change in coordinates where the object O ₁ is located from the amount of change in touch position. Then, when the touch is released after entering the coordinate space to some extent, the display position of the object O ₁ is displayed at a position where the lower side is in contact with the first axis or has already been displayed in a predetermined period in which the device is to be used. If there is another object, it is automatically moved down to the point where it touches the upper side. Here, if the displayed object O ₁ does not exceed the target line, it can be determined that the power usage amount of the device represented by the object O ₁ is less than or equal to the target value of the power usage amount in the predetermined period. .

Next, as shown in FIG. 5, when other objects displayed in the box are similarly dropped on the coordinate space by the sweep operation, each is displayed in the coordinate space, and its lower side is the first axis or It is automatically moved down to the point where it touches the upper side of the already displayed object. Among the objects displayed in the box of the scheduled device, for example, an object O _{2 having} a large area (that is, an object representing a device having a large power consumption) is scheduled to be used in the coordinate space. Is displayed. At this time, the object O ₂ is displayed such that the lower side is in contact with the first axis or the upper side of the object O ₁ . Here, if neither of the displayed objects O ₁ and O ₂ exceeds the target line, the power consumption of the device represented by the objects O ₁ and O ₂ falls below the target value of the power consumption during the predetermined period. Can be determined. Such an operation is repeated, and the objects O _{1 to} O _{N of the} scheduled devices are displayed in the coordinate space.

Here, as shown in FIG. 5, when the object O ₂ is already displayed in the coordinate space and the object O ₃ is further dropped in the coordinate space, the object O ₁ is firstly followed according to a normal routine. _The object O ₃ is moved downward until the lower side of the object O ₃ is in contact with the upper side of ₂ . In such a state, when there is a blank area where the use of the device is not scheduled, the control unit 240 causes the display unit 230 to display the object O ₃ so as to be transformed so as to fill the blank area. You may control. In other words, the object O ₃ displayed on the object O _2, in the case protrudes more laterally than the top side of the object O _2, a region adjacent to its lower and object O ₂ blank, the side of the object O ₂ Control is performed so that the protruding portion is divided and moved downward until the lower side abuts against the first shaft. Such control in FIG. 5, is divided portions of the object O _2, are displayed so as to be in contact with the top side of the object O _1. Thus, the objects O _{1 to} O _N are displayed so that there is no blank area between the first axis.

Next, as shown in FIG. 6, display control for a relatively large object O ₄ (that is, an object representing a device having a relatively large instantaneous power consumption value) will be described. In the case of the object O ₄ having a relatively large height, it can be displayed as follows. For example, when the control unit 240 determines that the target line is exceeded when the object O ₄ is displayed during a predetermined period, the object O ₄ is automatically moved during a predetermined period before or after the predetermined period. May be displayed. In this way, scheduling can be automatically performed ahead of schedule or behind schedule other than the time slot to be scheduled. For this reason, the control unit 240 displays not only the time zone to be scheduled, but also a predetermined period before and after that.

  Further, even after the objects are arranged as a schedule once, the objects may be selected and moved again. That is, the control unit 240 touches one of the objects arranged in the coordinate space, sweeps to move the display position, releases the touch at the moved destination, and uses the released position as a starting point. Move down to place the object. At this time, if there is another object arranged on the upper side of the moved object, the control unit 240 controls to move the object downward as well. As described above, even when the object is moved after the arrangement, the control unit 240 basically controls the display unit 230 to perform the downward alignment control.

As described above, the display device according to the first embodiment displays the objects O _{1 to} O _N representing the power usage amount of the device in the coordinate space in which the predetermined period and the target line are displayed. As a result, the power consumption amount of the scheduled device becomes obvious at a glance relative to the target value of the power consumption amount during the predetermined period. Therefore, it is possible to easily schedule the use of devices so as not to exceed the target value of the amount of power used in a predetermined period.

Then, the control unit 240 controls the operation of the load 120 based on the final scheduling screen. Specifically, the control unit 240 recognizes the display position of the object O ₁ ~ O _N in the coordinate space, and extracts the operation start time and end time of the load 120 based on the display position of the object O ₁ ~ O _N Are stored as a schedule, and the operation of the load 120 is controlled based on the schedule.

(Display method)
The display method according to the first embodiment will be described below. FIG. 7 is a flowchart showing the display method according to the first embodiment. In step 10, the EMS 200 displays coordinates expressed by a first axis representing time and a second axis representing power on the display unit 230.

  In step 20, the EMS 200 displays a line for specifying a predetermined period on the display unit 230 in the coordinate space defined by the coordinates displayed in step 10.

  In step 30, the EMS 200 displays a target line representing the transition of the target value of power used at each time point included in the predetermined period in the coordinate space defined by the coordinates displayed in step 10.

  In step 40, the EMS 200 inputs information necessary for displaying an object representing the power consumption of the device. Specifically, the EMS 200 inputs the time length from the start of use of the device to the end of use of the device and the power consumption of the device at each time from the start of use of the device to the end of use of the device. To do.

  In step 50, the EMS 200 determines whether or not input of information has been completed for all devices that perform scheduling. If the determination result is “YES”, the EMS 200 proceeds to the process of step 60. If the determination result is “NO”, the EMS 200 proceeds to the process of Step 40.

In step 60, the EMS 200 displays the objects O _{1 to} O _N in the coordinate space defined by the coordinates displayed in step 10. Each of the objects O _{1 to} O _N represents a time length from the start of use of the device to the end of use of the device by a lower side extending in parallel with the first axis, and from the start of use of the device to the end of use of the device. The transition of the power consumption of the device during the period up to is represented by the upper line. The EMS 200 displays each of the objects O _{1 to} O _{N in} an area surrounded by the lower side and the upper line. User, the objects O ₁ ~ O _N displayed, sorted in the coordinate space by the operation of the touch panel to display the scheduling screen on the display unit 230.

In step 70, the control unit 240, based on the scheduling screen each object O ₁ ~ O _N is displayed on the display unit 230, extracts the operation start and end time of each load 120 is retained as the schedule information. In step 80, the control unit 240 controls the operation of each load along the schedule information.

As described above, in the first embodiment, the EMS 200 displays the objects O _{1 to} O _N representing the power usage amount of the device in the coordinate space in which the predetermined period and the target line are displayed. Therefore, the power consumption of the scheduled device becomes obvious at a glance relative to the target value of the power consumption during the predetermined period.

  As a result, the power receiver can schedule the use of the device so as not to exceed the target value of the amount of power used in the predetermined period, and can operate the device so as not to exceed the target value.

  By the way, although the example which shows the target value of the electric power consumption in a predetermined period was mentioned above, you may draw the value which becomes upper limit electric power further in coordinate space. For example, in Japan, in the case of a high-voltage power receiver, an upper limit of maximum demand power (maximum demand value) is determined by a contract with an electric power company. And when it exceeds the upper limit power, it is necessary to pay an additional penalty than usual. Therefore, if a straight line that specifies the contract upper limit value is shown in the coordinate space, it is easy to use electric power so as not to exceed this, and it will lead to suppression of the penalty.

[Other Embodiments]
Although the present invention has been described with reference to the above-described embodiments, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  In the embodiment, the case where the display device is provided in the EMS 200 is illustrated. However, the embodiment is not limited to this. The display device may be provided in a device that does not have a function of controlling equipment provided in the consumer 10.

  The EMS 200 may be a SEMS (Store Energy Management System), a BEMS (Building Energy Management System), or a FEMS (Factor Energy Management System). The EMS 200 may be a HEMS (Home Energy Management System).

  DESCRIPTION OF SYMBOLS 10 ... Consumer, 20 ... CEMS, 30 ... Substation, 31 ... Distribution line, 40 ... Smart server, 50 ... Power plant, 51 ... Transmission line, 60 ... Network, 100 ... Energy management system, 110 ... Distribution board, DESCRIPTION OF SYMBOLS 120 ... Load, 130 ... PV unit, 131 ... PV, 132 ... PCS, 140 ... Storage battery unit, 141 ... Storage battery, 142 ... PCS, 150 ... Fuel cell unit, 151 ... Fuel cell, 152 ... PCS, 160 ... Hot water storage unit, 200 ... EMS, 210 ... reception unit, 220 ... transmission unit, 230 ... display unit, 240 ... control unit

Claims (8)

A display device that displays an image for scheduling use of a device during a predetermined period,
In a coordinate space represented by a first axis representing time and a second axis representing power, a target line representing a transition of a target value of power used within the predetermined period and an object representing the power consumption of the device A display unit to display;
A control unit that performs use scheduling of the device by arranging the objects on the coordinate space;
The object extends in parallel with the first axis, and indicates a lower side indicating a time length from the start of use of the device to the end of use of the device, and from the start of use of the device to the end of use of the device. A display device comprising a region surrounded by a line representing a transition of power consumption of the device between the two.   The display device according to claim 1, wherein the display unit displays the target line so as to have a negative slope in the predetermined period. The object has an upper side extending parallel to the first axis;
The display unit displays the first object and the second object as the object,
The control unit is in a state where the second object is displayed on the display unit in a state where the lower side of the second object is in contact with the upper side of the first object and the second object protrudes outward. When there is a blank area in which no object is arranged below the second object, the second object is deformed and displayed so as to fill the blank area. Item 3. A display device according to item 1 or item 2.   4. The control unit according to claim 1, wherein when the object is instructed to move in a coordinate space, the control unit controls to move downward from the position instructed to move. The display device according to any one of the above. The display unit is a display device having a touch panel,
The display device according to claim 1, wherein the control unit performs movement control of a display position of the object based on a contact instruction to the object.   The control unit automatically moves the object during a predetermined period before or after the predetermined period when it is determined that the target line is exceeded when the object is displayed during a predetermined period. The display device according to any one of claims 2 to 5.   The display device according to claim 6, wherein the control unit displays a predetermined period for performing scheduling and a predetermined period before and after the predetermined period on the display unit. A display method for displaying an image for scheduling use of a device during a predetermined period,
In a coordinate space represented by a first axis representing time and a second axis representing power, a target line representing a transition of a target value of power used within the predetermined period and an object representing the power consumption of the device Steps to display;
Performing the use scheduling of the device by arranging the objects on the coordinate space,
In the display step, the time length from the start of use of the device to the end of use of the device is represented by a lower side extending in parallel with the first axis, and from the start of use of the device to the end of use of the device. A display method characterized in that a transition of power consumption of the device during the period is represented by an upper line, and the object is displayed in an area surrounded by the lower side and the upper line.

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