JP2019205282A - Control system, server, control method, and program - Google Patents

Abstract

To provide a control system capable of controlling power consumption more accurately according to weather change at a low cost.SOLUTION: A luminaire 100 has an illuminance measurement unit 110 for measuring a first illuminance of sunlight at a first point, and a second illuminance of sunlight at a second point, and a detector 112 for detecting decrease in the first illuminance and second illuminance due to cloud. A server 200 has a time of arrival prediction part 211 for predicting the arrival time of cloud to a house, on the basis a first decrease time when decrease of the first illuminance is detected, a second decrease time when decrease of the second illuminance is detected, the first distance of the first and second points, and the second distance of a house where a photovoltaic power generation facility is installed and the first or second point. A control arrangement 500 controls operation of an electrical machine on the basis of the predicted arrival time, by using electrical energy generated by the photovoltaic power generation facility.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a control system, a server, a control method, and a program for controlling an electric device.

  2. Description of the Related Art Conventionally, in the control of electrical equipment using a solar power generation system, there is a system that predicts a power generation amount using a weather forecast and controls the electrical equipment based on the predicted power generation amount. As an example of such a system, Patent Document 1 predicts generated power by predicting a cloud distribution.

JP 2012-147578 A

  In patent document 1, in order to predict the distribution of clouds, the power generation amount of the scattered photovoltaic power generation devices is acquired. However, it is very costly to intersperse photovoltaic power generators at intervals sufficient to detect sudden changes in the weather.

  The present invention has been made to solve the above-described problems, and provides a control system, a server, a control method, and a program capable of controlling power consumption more accurately according to changes in weather at low cost. With the goal.

In order to achieve the above object, a control system according to the present invention provides:
First illuminance measuring means for measuring the first illuminance of sunlight at the first point;
Based on the first illuminance measured by the first illuminance measuring means, a first lighting control means for controlling lighting of the first illumination means installed at the first point;
First detection means for detecting a decrease in the first illuminance measured by the first illuminance measurement means due to clouds;
Second illuminance measuring means for measuring the second illuminance of sunlight at a second point different from the first point;
Second detection means for detecting a decrease in the second illuminance measured by the second illuminance measurement means due to the cloud;
A first photovoltaic power generation means installed in a house and generating electrical energy by sunlight;
Device control means for controlling an electrical device installed in the house using the electrical energy generated by the first solar power generation means;
A first reduction time at which a decrease in the first illuminance is detected by the first detection means; a second reduction time at which a decrease in the second illuminance is detected by the second detection means; the first point; Arrival time predicting means for predicting the arrival time when the cloud reaches the house based on the first distance to the second point and the second distance between the house and the first point or the second point. When,
With
The device control means controls the operation of the electric device based on the arrival time predicted by the arrival time prediction means.

  According to the present invention, it is possible to control power consumption more accurately according to changes in weather at low cost.

The figure which shows the structure of the control system which concerns on Embodiment 1 of this invention. The figure which shows the hardware constitutions of the illuminating device which concerns on Embodiment 1. FIG. The figure which shows the hardware constitutions of the server which concerns on Embodiment 1. The figure which shows the hardware constitutions of the control apparatus which concerns on Embodiment 1. The figure which shows the function structure of the illuminating device which concerns on Embodiment 1, a server, and a control apparatus. FIG. 6A is a diagram showing the time transition of the power generation amount by the photovoltaic power generation facility and the power consumption amount by the electric equipment in the conventional control system, and FIG. 6B is the sun in the control system according to the present embodiment. Diagram showing the time transition of the amount of power generated by photovoltaic power generation facilities and the amount of power consumed by electrical equipment The flowchart which shows the power consumption control process which the control system which concerns on Embodiment 1 performs The figure for demonstrating the arrangement | positioning of the illuminating device which concerns on Embodiment 2, and a house, and the area | region where a cloud passes The figure which shows the function structure of the illuminating device which concerns on Embodiment 2, a server, and a control apparatus. The figure which shows the function structure of the illuminating device which concerns on Embodiment 3, a server, and a control apparatus.

  Hereinafter, an air conditioning system according to an embodiment of the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent parts are denoted by the same reference numerals.

(Embodiment 1)
FIG. 1 is a diagram showing an overall configuration of a control system 1 according to Embodiment 1 of the present invention. The control system 1 includes lighting devices 100a and 100b, a server 200, a solar power generation facility 300, a power measuring device 400, a control device 500, and an electric device 600. In the control system 1, the server 200 predicts the movement of the cloud C based on the time when the illuminance measured by the lighting devices 100 a and 100 b decreases, and the cloud reaches the control device 500 installed in the house H. It is a system that notifies the time.

  The lighting devices 100a and 100b are streetlights installed at a position where a utility pole in a city, a roof of a building, or other sunlight reaches. As will be described later, lighting devices 100a and 100b are controlled to be turned on and off according to the illuminance. The position P1 (x1, y1) of the first point where the lighting device 100a is installed and the position P2 (x2, y2) of the second point where the lighting device 100b is installed are known. The positions P1 and P2 of 100a and 100b are stored. The lighting devices 100a and 100b are communicably connected to the server 200 via the Internet 700. Accordingly, the lighting devices 100a and 100b can be configured by incorporating a wireless communication module for communicating with the server 200 into an existing streetlight that is controlled to be turned on and off according to illuminance. The detailed configuration of the illumination devices 100a and 100b will be described later. The illumination device 100a is an example of an illumination device according to the present invention, and the illumination device 100b is an example of an illuminance measurement device according to the present invention.

  The server 200 is a server computer installed and operated by the manufacturer or sales company of the control device 500, has a function as a general Web server, and is connected to the Internet 700. In the present embodiment, the server 200 receives the time when the illuminance decreases from the lighting devices 100a and 100b via the Internet 700. Then, the server 200 predicts the time when the cloud C reaches the house H based on the received time and the positions P1 and P2 of the lighting devices 100a and 100b, and sends the predicted time to the control device 500 via the Internet 700. Send. The detailed configuration of the server 200 will be described later.

  The photovoltaic power generation facility 300 includes a PV (photovoltaic) panel 301 and a PV-PCS 302 that is a power conditioning system. The PV panel 301 is installed on the roof of the house H, and generates electric power by converting solar energy into electric energy. The PV-PCS 302 converts the DC power generated by the power generation of the PV panel 301 into AC power, thereby generating the generated power and supplying the generated power to the distribution board 800 via the power line PL1. The solar power generation facility 300 is an example of a first solar power generation unit according to the present invention.

  The power measuring device 400 measures the power transmitted to each of the power lines PL1 to PL3 arranged in the house H. Power line PL1 is arranged between commercial power system 900 and distribution board 800. Power line PL2 is arranged between photovoltaic power generation facility 300 and distribution board 800. Power line PL3 is arranged between electric device 600 and distribution board 800. Power measurement apparatus 400 is connected to each of CT (Current Transformer) 1 to CT3 connected to power lines PL1 to PL3 via a communication line. CT1 to CT3 are sensors for measuring an alternating current. Based on the measurement result of CT1, the power measuring device 400 measures the commercial power that is the power purchased by the consumer from the electric power company in the house H. Moreover, the electric power measurement apparatus 400 measures the electric power generated by the solar power generation facility 300 based on the measurement result of CT2. Moreover, the power measuring device 400 measures the power consumed in the electric device 600 based on the measurement result of CT3.

  The power measuring device 400 includes a communication interface, and is connected to the control device 500 through a network constructed in the house H (hereinafter referred to as “home network”). The home network is, for example, a network conforming to ECHONET Lite. The power measuring device 400 may be connected to a home network via an external communication adapter (not shown). Then, the power measuring device 400 transmits the measured power to the control device 500. The measured value of power transmitted to the control device 500 by the power measuring device 400 may be expressed in units of power (watts), or the power is integrated over a preset integration time. It may be expressed in units of electric power.

  The control device 500 is a control device that comprehensively controls a so-called HEMS (Home Energy Management System) system that manages power used in the house H. In the present embodiment, the control device 500 controls the electric device 600 installed in the house H according to the arrival time of the cloud C received from the server 200. The detailed configuration of the control device 500 will be described later.

  The electric device 600 is installed in the house H, and is electrically connected to the commercial power system 900 and the solar power generation facility 300 via the power line PL3 branched by the distribution board 800. The electric device 600 includes a communication interface, and communicates with the control device 500 via the above-described home network. Each electric device 600 may be of a specification that is connected to a home network via an external communication adapter (not shown). Each electric device 600 operates in accordance with a control instruction from the control device 500.

  Specifically, the electric device 600 includes an air conditioner, a lighting device, an electric cooker, a TV, a refrigerator, a ventilation facility, a hot water supply facility, and a floor heating facility. However, electric device 600 is not limited to these examples, and may be any device that operates with the power supplied from power line PL3 and can communicate with control device 500. Although two electric devices 600 are illustrated in FIG. 1, the number of electric devices 600 applicable to the control system 1 is not limited to this and is arbitrary.

  Next, the hardware configuration of the lighting devices 100a and 100b will be described in detail. In the present embodiment, lighting devices 100a and 100b have the same configuration, and hereinafter, lighting devices 100a and 100b are collectively referred to as lighting device 100. As illustrated in FIG. 2, the illumination device 100 includes a control unit 101, a storage unit 102, a communication unit 103, an illumination unit 104, and an illuminance sensor unit 105. These units are connected via a bus 106.

  Although not shown, the control unit 101 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). In the control unit 101, the CPU reads the program and data stored in the ROM, and performs overall control of the lighting device 100 using the RAM as a work area.

  The storage unit 102 is, for example, a non-volatile semiconductor memory such as flash memory, EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), or HDD (Hard Disk Drive), and serves as a so-called secondary storage device. Bear. The storage unit 102 stores various programs and data used by the control unit 101 to perform various processes, and various data generated or acquired by the control unit 101 performing various processes.

  The communication unit 103 includes a wireless communication interface for connecting to the Internet 700, and communicates with the server 200 via the Internet 700 under the control of the control unit 101.

  The illumination unit 104 is a lighting fixture such as an LED (Light Emitting Diode), a fluorescent lamp, or a light bulb. The illumination unit 104 is turned on or off under the control of the control unit 101. The illumination unit 104 is an example of a first illumination unit and a second illumination unit according to the present invention.

  The illuminance sensor unit 105 includes an illuminance sensor that detects the illuminance of sunlight at the first point or the second point where the lighting device 100 is installed. The illuminance sensor unit 105 detects illuminance under the control of the control unit 101, and outputs the detected illuminance data to the control unit 101.

  Next, the hardware configuration of the server 200 will be described in detail. As illustrated in FIG. 3, the server 200 includes a control unit 201, a storage unit 202, and a communication unit 203. These units are connected via a bus 204.

  Although not shown, the control unit 201 includes a CPU, a ROM, and a RAM. In the control unit 201, the CPU reads out the program and data stored in the ROM, and performs overall control of the server 200 using the RAM as a work area.

  The storage unit 202 is, for example, a non-volatile semiconductor memory such as a flash memory, EPROM, or EEPROM, or an HDD, and plays a role as a so-called secondary storage device. The storage unit 202 stores various programs and data used by the control unit 201 to perform various processes, and various data generated or acquired by the control unit 201 performing various processes.

  In the present embodiment, the storage unit 202 stores lighting device position information 221 and house position information 222. The lighting device position information 221 is information representing the position of the lighting device 100. Specifically, the lighting device position information 221 includes identification information for identifying the lighting device 100 and the position of the lighting device 100 in association with each other. The lighting device position information 221 may be acquired from the lighting device 100 in advance or may be input by a user. The house position information 222 is information representing the position of the house. Specifically, the house position information 222 includes identification information for identifying the house H and the position of the house H in association with each other. The lighting device position information 221 may be acquired from the control device 500 in advance or may be input by a user.

  The communication unit 203 includes a communication interface for connecting to the Internet 700, and communicates with the lighting device 100 and the control device 500 via the Internet 700 under the control of the control unit 201.

  Next, the hardware configuration of the control device 500 will be described in detail. As illustrated in FIG. 4, the control device 500 includes a control unit 501, a storage unit 502, an in-home communication unit 503, and an out-of-home communication unit 504. These units are connected via a bus 505.

  The control unit 501 includes a CPU, a ROM, and a RAM (not shown). In the control unit 501, the CPU reads out the program and data stored in the ROM, and performs overall control of the control device 500 using the RAM as a work area.

  The storage unit 502 is, for example, a nonvolatile semiconductor memory such as a flash memory, EPROM, or EEPROM, or an HDD, and plays a role as a so-called secondary storage device. The storage unit 502 stores various programs and data used for the control unit 501 to perform various processes, and various data generated or acquired by the control unit 501 performing various processes.

  In the present embodiment, the storage unit 502 stores a control schedule 521. The control schedule 521 is a schedule for controlling the operation of the electric device 600. The control schedule 521 may be appropriately updated by the control unit 501 based on the power consumption of the electric device 600 measured by the power measuring device 400 and the power generation amount of the solar power generation facility 300, or may be set by the user. Good.

  The in-home communication unit 503 includes a communication interface for communicating via a home network built in the house H, and under the control of the control unit 501, the photovoltaic power generation facility 300, the power measuring device 400, and the electric device It communicates with each of 600 via a home network.

  The outside communication unit 504 includes a communication interface for connecting to the Internet 700, and communicates with the server 200 via the Internet 700 under the control of the control unit 501.

  Next, functional configurations of the lighting device 100, the server 200, and the control device 500 will be described. FIG. 5 is a block diagram illustrating functional configurations of the lighting device 100, the server 200, and the control device 500.

  First, the functional configuration of the illumination device 100 will be described. As illustrated in FIG. 5, the lighting device 100 functions as an illuminance measurement unit 110, a lighting control unit 111, a detection unit 112, and a decrease time transmission unit 113.

  The illuminance measurement unit 110 measures the illuminance of sunlight at the point where the lighting device 100 is installed. Specifically, the illuminance measurement unit 110 of the illumination device 100a measures the first illuminance of sunlight at a first point where the illumination device 100a is installed, and the illuminance measurement unit 110 of the illumination device 100b includes the illumination device 100b. The second illuminance of sunlight at the installed second point is measured. The illuminance measurement unit 110 is an example of a first illuminance measurement unit and a second illuminance measurement unit according to the present invention, and is realized by the cooperation of the control unit 101 and the illuminance sensor unit 105.

  The lighting control unit 111 controls lighting of the lighting unit 104 based on the illuminance measured by the illuminance measuring unit 110. Specifically, the lighting control unit 111 of the lighting device 100 a is based on the first illuminance measured by the illuminance measuring unit 110, and the lighting control unit 111 of the lighting device 100 b is the second measured by the illuminance measuring unit 110. Based on the illuminance, lighting of the illumination unit 104 is controlled. Specifically, the lighting control unit 111 periodically acquires the illuminance measured by the illuminance measurement unit 110, turns on the illumination unit 104 when the acquired illuminance is smaller than a predetermined threshold, and acquires the acquired illuminance. Is equal to or greater than a predetermined threshold, the illumination unit 104 is turned off. The lighting control unit 111 is an example of a first lighting control unit and a second lighting control unit according to the present invention, and is realized by the control unit 101.

  The detection unit 112 detects a decrease in the illuminance measured by the illuminance measurement unit 110 due to the cloud C. Specifically, the detection unit 112 of the illumination device 100 a detects a decrease in the first illuminance measured by the illuminance measurement unit 110 due to the cloud C, and the detection unit 112 of the illumination device 100 b is measured by the illuminance measurement unit 110. The decrease in the second illuminance is caused by the cloud C is detected. Specifically, the detection unit 112 periodically acquires the illuminance measured by the illuminance measurement unit 110, and determines that the illuminance has decreased when the acquired illuminance is smaller than a predetermined threshold. Furthermore, the detection unit 112 detects a decrease in illuminance due to the cloud C when the current time when it is determined that the illuminance has decreased falls within the daytime time zone stored in advance. It is determined that the measured value of illuminance has fallen because is blocked. The detection unit 112 is an example of a first detection unit and a second detection unit according to the present invention, and is realized by the control unit 101.

  The decrease time transmission unit 113 transmits the decrease time when the decrease in illuminance is detected by the detection unit 112 to the server 200. Specifically, the decrease time transmission unit 113 of the illumination device 100a transmits the first decrease time when the first illuminance decrease is detected by the detection unit 112 to the server 200, and the decrease time transmission unit 113 of the illumination device 100b The second decrease time at which the decrease in the second illuminance is detected by the detection unit 112 is transmitted to the server 200. Specifically, when a decrease in illuminance is detected by the detection unit 112, the decrease time transmission unit 113 specifies the current time at the time of detection as the decrease time. And the fall time transmission part 113 transmits the identification information for identifying the own illuminating device 100 memorize | stored previously, and the specified fall time to the server 200. FIG. The decrease time transmission unit 113 is an example of a first decrease time transmission unit and a second decrease time transmission unit according to the present invention, and is realized by the cooperation of the control unit 101 and the communication unit 103.

  Next, the functional configuration of the server 200 will be described. As illustrated in FIG. 5, the server 200 functions as a drop time reception unit 210, an arrival time prediction unit 211, and an arrival time transmission unit 212.

  The decrease time receiving unit 210 receives the decrease time from the lighting device 100. Specifically, the decrease time receiving unit 210 receives identification information for identifying the illumination device 100a and the first decrease time from the illumination device 100a. Moreover, the fall time receiving unit 210 receives identification information for identifying the illumination device 100b and the second fall time from the illumination device 100b. The decrease time receiving unit 210 is realized by the cooperation of the control unit 201 and the communication unit 203.

The arrival time prediction unit 211 includes a first decrease time, a second decrease time, a first distance between the first point and the second point, a second distance between the house H and the first point or the second point, The arrival time when the cloud C reaches the house H is predicted. Specifically, the arrival time predicting unit 211 determines the position P1 (x1) of the lighting device 100a from the lighting device position information 221 stored in the storage unit 202 based on the identification information of the lighting device 100a received together with the first decrease time. , Y1). The arrival time prediction unit 211 also determines the position P2 (x2, y2) of the lighting device 100b from the lighting device position information 221 stored in the storage unit 202 based on the identification information of the lighting device 100b received together with the second decrease time. To get. In addition, the arrival time prediction unit 211 acquires the position P0 (x0, y0) of the house H from the house position information 222 stored in the storage unit 202. Then, as shown in FIG. 1, the arrival time prediction unit 211 calculates the first distance d1 from the acquired positions P1 and P2. In addition, the arrival time prediction unit 211 calculates the second distance d2 from the acquired positions P0 and P2. Then, the arrival time prediction unit 211 calculates the velocity v of the cloud C from the first decrease time t1 and the second decrease time t2 by the following formula.
v = d1 / (t2-t1)
Then, the arrival time predicting unit 211 calculates the arrival time t3 when the cloud C reaches the house H from the velocity v of the cloud C using the following equation.
t3 = d2 / v + t2 = (d2 / d1) × (t2−t1) + t2
The arrival time prediction unit 211 is an example of an arrival time prediction unit according to the present invention, and is realized by the control unit 201.

  The arrival time transmission unit 212 transmits the arrival time predicted by the arrival time prediction unit 211 to the control device 500. The arrival time transmission unit 212 is realized by the cooperation of the control unit 201 and the communication unit 203.

  Next, the functional configuration of the control device 500 will be described. As illustrated in FIG. 5, the control device 500 functions as an arrival time reception unit 510, a device control unit 511, and a control instruction transmission unit 512.

  The arrival time receiving unit 510 receives the arrival time from the server 200. The arrival time receiving unit 510 is realized by the cooperation of the control unit 501 and the outside communication unit 504.

  Device control unit 511 controls the operation of electric device 600 based on the arrival time received by arrival time reception unit 510. Specifically, the device control unit 511 predicts the power consumption consumed by the electric device 600 at the arrival time and the generated power generated by the photovoltaic power generation facility based on the control schedule stored in the storage unit 502. The power shortage at the arrival time is calculated. Then, the device control unit 511 updates the control schedule 521 so that the power generation amount does not exceed the power consumption amount based on the calculated insufficient power. The device control unit 511 is an example of a device control unit according to the present invention, and is realized by the control unit 501.

  Here, the time transition of the power generation amount by the solar power generation facility 300 and the power consumption amount by the electric device 600 will be described with reference to FIGS. FIG. 6A shows the time transition of the amount of power generated by the photovoltaic power generation facility and the amount of power consumed by the electrical equipment in the conventional control system, and FIG. 6B shows the solar power generation in the control system 1 according to the present embodiment. The time transition of the power generation amount by the facility 300 and the power consumption amount by the electric device 600 is shown. As shown in FIG. 6 (a), in a conventional control system that controls the power consumption of an electric device according to the amount of power generation, when sunlight is blocked by clouds due to a sudden change in weather at the arrival time t3, Although the amount decreases at the arrival time t3, since the power consumption suppression control also starts from the time t3, power shortage occurs due to a time lag corresponding to the reaction time. On the other hand, as shown in FIG. 6B, in the control system 1 according to the present embodiment, the control schedule 521 for suppression control is updated at the stage of the second decrease time t2 in consideration of the reaction time. Thus, it is possible to avoid the amount of power consumption exceeding the amount of power generation.

  The control instruction transmission unit 512 transmits a control instruction for controlling the electric device 600 to the electric device 600 according to the control schedule 521 updated by the device control unit 511. The control instruction transmission unit 512 is realized by the cooperation of the control unit 501 and the home communication unit 503.

  Next, the operation of the control system 1 according to the embodiment of the present invention will be described. FIG. 7 is a flowchart showing a flow of power consumption control processing executed by the lighting devices 100a and 100b, the server 200, the control device 500, and the electric device 600. Hereinafter, the power consumption control process will be described with reference to FIG. This processing is started by executing a program on the hardware of each device, and each device is realized by this processing. This process is started when the lighting device 100 determines a decrease in illuminance due to the cloud C.

  When the illumination device 100a detects a decrease in the first illuminance due to the cloud C (step S11), the illumination device 100a transmits a first decrease time to the server 200 (step S12). In addition, when the illumination device 100b detects a decrease in the second illuminance due to the cloud C (step S21), the illumination device 100b also transmits a second decrease time to the server 200 (step S22).

  When the server 200 receives the first decrease time and the second decrease time from the lighting devices 100a and 100b (steps S31 and S32), the server 200 receives the first decrease time and the second decrease time, and the lighting devices 100a and 100b and the house H. The arrival time of the cloud C is predicted on the basis of the position (step S33).

  Then, the server 200 transmits the predicted arrival time to the control device 500 (step S34).

  When receiving the arrival time from the server 200 (step S41), the control device 500 updates the control schedule 521 based on the received arrival time and the current control schedule 521 of the electric device 600 (step S42).

  And the control apparatus 500 transmits a control instruction | indication to the electric equipment 600 according to the updated control schedule (step S43).

  And the electric equipment 600 will drive | operate according to the received control instruction, if a control instruction is received from the control apparatus 500 (step S51) (step S52). Then, this process ends.

  As described above, according to the present embodiment, server 200 receives the time when the illuminance decreases from lighting devices 100a and 100b, the time when the illuminance decreases, the position of lighting devices 100a and 100b, and house H. And the arrival time at which the cloud C reaches the house H is predicted. Then, the server 200 transmits the predicted arrival time to the control device 500, and the control device 500 controls the operation of the electric device 600 based on the received arrival time. Therefore, since an existing lighting device such as a streetlight can be used as a device for measuring illuminance, it is possible to control power consumption more accurately according to changes in weather at low cost.

(Embodiment 2)
In the first embodiment, the example in which the lighting devices 100a and 100b are arranged in one direction has been described. However, the number of lighting devices 100 applicable to the control system 1 is not limited to two, and more lighting devices 100 may be used. In particular, the lighting device 100 is installed at intervals of 100 to 200 m in a range of several kilometers or several tens of kilometers around the house H, so that the movement of the cloud C can be predicted in all directions around the house H. . Furthermore, when there are three or more lighting devices 100, the width of the cloud C is calculated, the area through which the cloud C passes is predicted, and the arrival time is transmitted when the house H exists in the area. it can. In the following embodiment, an example of predicting a region through which a cloud passes will be described.

  The arrangement | positioning with the illuminating device 100 and the house H which concern on this Embodiment, and the area | region where the cloud C passes are demonstrated using FIG. In the example shown in FIG. 8, the lighting devices L11 to L15, L21 to L25, L31 to L34, L41 to L43, L51, and L52 are arranged as the lighting device 100, and the houses H35, H44, H45, H53 to H55 are arranged. When the server 200 determines that the decrease times from the illumination devices L12, L21 are the same among the decrease times received from the illumination devices L11, L12, L21, L22, based on the positions of the illumination devices L12, L21, The width of cloud C is calculated. Then, the server 200 predicts a region through which the cloud C passes from the moving direction of the cloud C and the cloud width w, and determines the arrival time of the cloud C for the houses H44, H45, H54, and H55 existing in the region. Predict. Then, the server 200 transmits the predicted arrival time to the control devices 500 of the houses H44, H45, H54, and H55.

  Next, functional configurations of lighting apparatus 100, server 200, and control apparatus 500 according to the present embodiment will be described. FIG. 9 is a block diagram illustrating functional configurations of the lighting device 100, the server 200, and the control device 500. Compared with Embodiment 1 in FIG. 5, the server 200 further differs in that it functions as a cloud region prediction unit 213.

  Furthermore, the control system 1 according to the present embodiment is different from the first embodiment in that it includes three or more lighting devices 100. Accordingly, the illuminance measurement unit 110 and the detection unit 112 of the illumination device 100 illustrated in FIG. 9 are also examples of the third illuminance measurement unit and the third detection unit according to the present invention, respectively. Note that the illuminance measurement unit 110 that is the third illuminance measurement unit measures the third illuminance of sunlight at the third point where the illumination device 100 including the illuminance measurement unit 110 that is the third illuminance measurement unit is installed.

  When the two fall times are the same time among the drop times received from the three or more lighting devices 100, the cloud region prediction unit 213 is based on the distance between the points where the lighting devices 100 are installed. Predict the region through which C passes. Specifically, when the difference between the decrease time received from the lighting device L12 and the decrease time received from the lighting device L21 shown in FIG. It is determined that the two drop times are the same time. Then, the cloud region prediction unit 213 acquires the position of the illumination device L12 and the position of the illumination device L21 from the illumination device position information 221, and the distance between the illumination device L12 and the illumination device L21 is set as the width w of the cloud C. calculate. Then, the cloud region prediction unit 213 identifies the moving direction of the cloud from the lighting devices L11, L12, L21, and L22 that are the transmission source of the drop time, and the cloud is in the moving direction and the cloud is in the region of the cloud width w. Identified as a passing area. The cloud region prediction unit 213 is an example of a cloud region prediction unit according to the present invention, and is realized by the control unit 201.

  Then, the arrival time predicting unit 211 predicts the arrival time to the house H when the house H exists in the region through which the cloud C predicted by the cloud region prediction unit 213 passes. Specifically, as shown in FIG. 8, the arrival time prediction unit 211 identifies a house H that exists in the area predicted by the cloud area prediction unit 213 based on the house position information 222. When the arrival time predicting unit 211 determines that the houses H44, H45, H54, and H55 are present in the area, each house H44, H45, H54, and H55 is based on the positions of the houses H44, H45, H54, and H55. The arrival time of cloud C to is predicted. And arrival time transmission part 212 transmits the arrival time predicted to control device 500 of each house H44, H45, H54, and H55.

  With the above configuration, the control system 1 according to the present embodiment predicts the region through which the cloud C passes based on the illuminance reduction time from the three or more lighting devices 100, and for the house H in the region, The arrival time of the cloud C can be predicted.

(Embodiment 3)
In the first and second embodiments, the example in which the lighting device 100 detects a decrease in illuminance has been described. However, the server 200 may detect a decrease in illuminance instead of the lighting device 100. Hereinafter, an example in which the server 200 detects a decrease in illuminance will be described as a third embodiment.

  Next, functional configurations of lighting apparatus 100, server 200, and control apparatus 500 according to the present embodiment will be described. FIG. 10 is a block diagram illustrating functional configurations of the lighting device 100, the server 200, and the control device 500. Compared to Embodiment 1 in FIG. 5, lighting apparatus 100 according to the present embodiment does not include detection unit 112 but includes illuminance transmission unit 114 instead of decrease time transmission unit 113. The server 200 according to the present embodiment further includes an illuminance receiving unit 214 instead of the decrease time receiving unit 210 further including a detection unit 215.

  The illuminance transmission unit 114 periodically transmits the illuminance measured by the illuminance measurement unit 110 to the server 200. Specifically, the illuminance transmission unit 114 of the illumination device 100a periodically transmits the first illuminance measured by the illuminance measurement unit 110 to the server 200, and the illuminance transmission unit 114 of the illumination device 100b includes the illuminance measurement unit 110. The second illuminance measured by is transmitted to the server 200 periodically. Specifically, the illuminance transmission unit 114 periodically transmits to the server 200 identification information for identifying its own lighting device 100 stored in advance and the measured illuminance. The illuminance transmission unit 114 is an example of a first illuminance transmission unit and a second illuminance transmission unit according to the present invention, and is realized by the cooperation of the control unit 101 and the communication unit 103.

  The illuminance receiving unit 214 periodically receives illuminance from the lighting device 100. Specifically, the illuminance receiving unit 214 receives identification information for identifying the illuminating device 100a and the first illuminance from the illuminating device 100a. In addition, the illuminance receiving unit 214 receives identification information for identifying the illuminating device 100b and the second illuminance from the illuminating device 100b. The illuminance receiving unit 214 is an example of a first illuminance receiving unit and a second illuminance receiving unit according to the present invention, and is realized by the cooperation of the control unit 201 and the communication unit 203.

  The detector 215 detects a decrease in illuminance due to the cloud C based on the illuminance received by the illuminance receiver 214. Specifically, the detection unit 215 detects a decrease in the first illuminance based on the first illuminance periodically transmitted from the lighting device 100a. Moreover, the detection part 215 detects the fall of 2nd illumination intensity based on the 2nd illumination intensity transmitted regularly from the illuminating device 100b. As a method for detecting a decrease in illuminance, the same method as in the first embodiment can be employed. The detection unit 215 is an example of a first detection unit and a second detection unit according to the present invention, and is realized by the control unit 201.

  The arrival time predicting unit 211 uses the time when the first illuminance decrease is detected by the detection unit 215 as the first decrease time, and the time when the second illuminance decrease is detected as the second decrease time. Similarly, the arrival time of cloud C is predicted.

  With the above configuration, the control system 1 according to the present embodiment detects a decrease in illuminance when the server 200 periodically receives illuminance from the illumination device 100, and based on the time when the decrease in illuminance is detected. Thus, the arrival time of the cloud C can be predicted.

  Although the embodiment of the present invention has been described above, the above embodiment is an example, and the scope of application of the present invention is not limited to this. That is, the embodiments of the present invention can be applied in various ways, and all the embodiments are included in the scope of the present invention.

  For example, in Embodiments 1 to 3 described above, the example in which two or more illumination devices 100 measure illuminance and the measured decrease in illuminance or the illuminance is transmitted to the server 200 has been described. However, some of the two or more lighting devices 100 may not have a lighting function. For example, you may implement | achieve the illumination intensity measuring apparatus which concerns on this invention using the existing solar power generation facility. In this case, the second solar power generation means according to the present invention is realized by the PV panel that generates electric energy by sunlight, and the present invention is measured by measuring the illuminance based on the electric energy generated by the PV panel. The 2nd illumination intensity measurement means which concerns on can be implement | achieved.

  Moreover, in said Embodiment 1-3, the position of the illuminating device 100 demonstrated the example stored beforehand as the illuminating device position information 221 in the memory | storage part 202. FIG. However, the position of the illuminating device 100 may not be stored in the storage unit 202 in advance. For example, the illuminating device 100 may store the identification information of the own device stored in advance in the storage unit 102 together with the decrease time or illuminance. You may transmit to the server 200.

  Further, the server 200 may transmit information indicating the region through which the cloud C passes together to the control device 500 together with the arrival time of the cloud C. In this case, the control device 500 may vary the control content of the electric device 600 depending on where the house H is located in the region through which the cloud C passes. That is, it is considered that the occurrence probability or degree of illuminance decrease differs depending on whether the house H exists at a position that enters the center of the cloud or near the end of the cloud. Therefore, the control device 500 calculates the occurrence probability or degree of illuminance reduction based on the region through which the cloud C passes and the position of the house H, and sets the control schedule of the electric device 600 according to the occurrence probability or degree. It may be updated.

  Moreover, the control apparatus 500 may implement | achieve all or one part of the function of the server 200 of the said Embodiment 1-3.

  In addition, not only can the server 200 provided with a configuration for realizing the function according to the present invention in advance be provided, but an existing personal computer or an information terminal device or the like can function as the server 200 according to the present invention by applying the program. You can also. That is, the program for realizing each functional configuration by the server 200 exemplified in the above embodiment is stored in an existing personal computer or information terminal device so that a CPU or the like that controls the existing personal computer or information terminal device can execute the program. By applying, it can function as the server 200 according to the present invention. The control method according to the present invention can be implemented using the server 200.

  Moreover, the application method of such a program is arbitrary. For example, the program can be stored and applied to a computer-readable recording medium [CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Versatile Disc), MO (Magneto Optical disc), etc.], the Internet, etc. It is also possible to apply the program by storing it in a storage on the network and downloading it.

DESCRIPTION OF SYMBOLS 1 Control system, 100, 100a, 100b Illuminating device, 101 Control part, 102 Storage part, 103 Communication part, 104 Illumination part, 105 Illuminance sensor part, 106 Bus, 110 Illuminance measurement part, 111 Lighting control part, 112 Detection part, 113 drop time transmission unit, 114 illuminance transmission unit, 200 server, 201 control unit, 202 storage unit, 203 communication unit, 204 bus, 210 drop time reception unit, 211 arrival time prediction unit, 212 arrival time transmission unit, 213 cloud region Prediction unit, 214 Illuminance reception unit, 215 detection unit, 221 Lighting device position information, 222 House position information, 300 Solar power generation facility, 301 PV panel, 302 PV-PCS, 400 Power measurement device, 500 control device, 501 control unit 502 storage unit, 503 in-home communication unit, 504 out-of-home communication unit, 505 Bus, 510 Arrival time receiving unit, 511 Device control unit, 512 Control instruction unit, 521 Control schedule, 600 Electrical device, 700 Internet, 800 Distribution board, 900 Commercial power system

Claims (11)

First illuminance measuring means for measuring the first illuminance of sunlight at the first point;
Based on the first illuminance measured by the first illuminance measuring means, a first lighting control means for controlling lighting of the first illumination means installed at the first point;
First detection means for detecting a decrease in the first illuminance measured by the first illuminance measurement means due to clouds;
Second illuminance measuring means for measuring the second illuminance of sunlight at a second point different from the first point;
Second detection means for detecting a decrease in the second illuminance measured by the second illuminance measurement means due to the cloud;
A first photovoltaic power generation means installed in a house and generating electrical energy by sunlight;
Device control means for controlling the electrical equipment installed in the house using the electrical energy generated by the first solar power generation means,
A first reduction time at which a decrease in the first illuminance is detected by the first detection means; a second reduction time at which a decrease in the second illuminance is detected by the second detection means; the first point; Arrival time predicting means for predicting the arrival time when the cloud reaches the house based on the first distance to the second point and the second distance between the house and the first point or the second point. When,
With
The device control means controls the operation of the electric device based on the arrival time predicted by the arrival time prediction means.
Control system. Third illuminance measuring means for measuring the third illuminance of sunlight at a third point different from the first point and the second point;
Third detecting means for detecting a decrease in the third illuminance measured by the third illuminance measuring means due to the cloud;
Based on the distance between the first point and the third point when the third reduction time when the third illuminance reduction is detected by the third detection means and the first reduction time are the same time Cloud region prediction means for predicting a region through which the cloud passes;
Further comprising
The arrival time predicting means predicts the arrival time when the house exists in an area through which the cloud predicted by the cloud area predicting means passes.
The control system according to claim 1. The control system further includes an illumination device, an illuminance measurement device, and a server,
The lighting device includes:
The first illuminance measuring means;
The first illumination means;
The first lighting control means;
The first detection means;
First lowering time transmitting means for transmitting the first lowering time to the server;
With
The illuminance measuring device is
The second illuminance measuring means;
The second detection means;
Second lowering time transmitting means for transmitting the second lowering time to the server;
With
The server includes the arrival time prediction means,
The arrival time predicting means includes the first decrease time transmitted by the first decrease time transmitting means, the second decrease time transmitted by the second decrease time transmitting means, the first distance, Predicting the arrival time based on the second distance;
The control system according to claim 1 or 2. The control system further includes an illumination device, an illuminance measurement device, and a server,
The lighting device includes:
The first illuminance measuring means;
The first illumination means;
The first lighting control means;
First illuminance transmitting means for periodically transmitting the first illuminance to the server;
With
The illuminance measuring device is
The second illuminance measuring means;
Second illuminance transmitting means for periodically transmitting the second illuminance to the server;
With
The server
The first detection means;
The second detection means;
The arrival time predicting means,
The first detection means detects a decrease in the first illuminance due to the cloud based on the first illuminance transmitted by the first illuminance transmission means,
The second detection means detects a decrease in the second illuminance due to the cloud based on the second illuminance transmitted by the second illuminance transmission means.
The control system according to claim 1 or 2. The illuminance measuring device is
A second lighting means installed at the second point;
Second lighting control means for controlling lighting of the second illumination means based on the second illuminance measured by the second illuminance measurement means;
Further comprising
The control system according to claim 3 or 4. The illuminance measuring apparatus is further provided with a second solar power generation unit that is installed at the second point and generates electric energy by sunlight,
The second illuminance measuring means measures the second illuminance based on the electric energy generated by the second photovoltaic power generation means.
The control system according to claim 3 or 4. A server that is communicably connected to a lighting device installed at a first point, an illuminance measuring device installed at a second point different from the first point, and a control device,
A first drop time receiving means for receiving a first drop time at which a drop in the first illuminance of sunlight at the first point due to clouds is detected from the lighting device;
A second reduction time receiving means for receiving a second reduction time at which a decrease in the second illuminance of sunlight at the second point due to the cloud is detected from the illuminance measurement device;
A first drop time received by the first drop time receiving means, a second drop time received by the second drop time receiving means, a first distance between the first point and the second point; The arrival time at which the clouds reach the house is predicted based on the house where the photovoltaic power generation means for generating electric energy by sunlight is installed and the second distance between the first point and the second point. Means for predicting arrival time,
Arrival time transmitting means for transmitting the arrival time predicting means to the control device;
A server comprising A server that is communicably connected to a lighting device installed at a first point, an illuminance measuring device installed at a second point different from the first point, and a control device,
A first illuminance receiving means for periodically receiving the first illuminance of sunlight at the first point from the lighting device;
A second illuminance receiving means for periodically receiving the second illuminance of sunlight at the second point from the illuminance measuring device;
Based on the first illuminance received by the first illuminance receiving means, a decrease in the first illuminance due to clouds is detected, and based on the second illuminance received by the second illuminance receiving means, the second illuminance is received. Detecting means for detecting a decrease in illuminance due to the cloud;
A first decrease time at which a decrease in the first illuminance is detected by the detection means, a second decrease time at which a decrease in the second illuminance is detected by the detection means, and a first time between the first point and the second point. The cloud reaches the house on the basis of one distance and a second distance between the house where the solar power generation means for generating electric energy by sunlight is installed and the first point or the second point. An arrival time predicting means for predicting the arrival time;
Arrival time transmitting means for transmitting the arrival time predicting means to the control device;
A server comprising A first illuminance measurement step for measuring the first illuminance of sunlight at the first point;
Based on the first illuminance measured in the first illuminance measurement step, a lighting control step for controlling lighting of the first illumination means installed at the first point;
A first detection step of detecting a decrease in the first illuminance measured by the first illuminance measurement step due to clouds;
A second illuminance measurement step of measuring a second illuminance of sunlight at a second point different from the first point;
A second detection step of detecting a decrease in the second illuminance measured by the second illuminance measurement step due to the cloud;
A device control step for controlling an electrical device installed in the house using electrical energy generated by solar power generation means that is installed in the house and generates electrical energy from sunlight,
A first decrease time at which a decrease in the first illuminance is detected in the first detection step; a second decrease time at which a decrease in the second illuminance is detected in the second detection step; the first point; An arrival time prediction step of predicting an arrival time at which the cloud reaches the house based on a first distance to the second point and a second distance between the house and the first point or the second point. When,
With
The device control step controls operation of the electric device based on the arrival time predicted in the arrival time prediction step.
Control method. A computer communicably connected to a lighting device installed at a first point, an illuminance measuring device installed at a second point different from the first point, and a control device,
First reduction time receiving means for receiving, from the lighting device, a first reduction time at which a decrease in the first illuminance of sunlight at the first point due to clouds is detected;
A second reduction time receiving means for receiving, from the illuminance measurement device, a second reduction time at which a decrease in the second illuminance of sunlight at the second point due to the cloud is detected;
A first drop time received by the first drop time receiving means, a second drop time received by the second drop time receiving means, a first distance between the first point and the second point; The arrival time at which the clouds reach the house is predicted based on the house where the photovoltaic power generation means for generating electric energy by sunlight is installed and the second distance between the first point and the second point. Means for predicting arrival time,
Arrival time transmission means for transmitting the arrival time prediction means to the control device;
Program to function as. A computer communicably connected to a lighting device installed at a first point, an illuminance measuring device installed at a second point different from the first point, and a control device,
A first illuminance receiving means for periodically receiving a first illuminance of sunlight at the first point from the lighting device;
A second illuminance receiving means for periodically receiving the second illuminance of sunlight at the second point from the illuminance measuring device;
Based on the first illuminance received by the first illuminance receiving means, a decrease in the first illuminance due to clouds is detected, and based on the second illuminance received by the second illuminance receiving means, the second illuminance is received. Detecting means for detecting a decrease in illuminance due to the cloud;
A first decrease time at which a decrease in the first illuminance is detected by the detection means, a second decrease time at which a decrease in the second illuminance is detected by the detection means, and a first time between the first point and the second point. The cloud reaches the house on the basis of one distance and a second distance between the house where the solar power generation means for generating electric energy by sunlight is installed and the first point or the second point. Arrival time prediction means for predicting arrival time;
Arrival time transmission means for transmitting the arrival time prediction means to the control device;
Program to function as.

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