Setting method, program, and lighting control device

Abstract

To provide a setting method capable of setting a target value for controlling lighting fixtures using illuminance sensors.SOLUTION: The setting method includes: an acquisition step S15 of acquiring input information including a piece of first information about lighting fixtures and a piece of second information regarding indoor spaces where lighting fixtures are installed which are input on an information terminal 40; calculation steps S16-S21 of calculating a reference value for determining a target value regarding illuminance used for controlling the lighting fixtures using illuminance sensors based on the acquired input information; and a setting step S22 of setting the calculated reference value on a lighting control device 30 with an illuminance sensor installed in an indoor space.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a setting method, a program, and a lighting control device. [Background technology]

[0002] There is a known technology that uses an illuminance sensor to control lighting fixtures so that the illuminance in a space is constant. In relation to such technology, Patent Document 1 discloses a lighting control device that prevents lighting flickering and achieves energy saving effects. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-93171 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides a setting method and the like that can set target values ​​for controlling a lighting fixture using an illuminance sensor. [Means for solving the problem]

[0005] A setting method according to one embodiment of the present invention is a setting method executed by a computer, and includes an acquisition step of acquiring input information entered into an information terminal, the input information including first information about a lighting fixture and second information about a space in which the lighting fixture is installed, a calculation step of calculating a reference value for determining a target value related to illuminance to be used for controlling the lighting fixture using an illuminance sensor based on the acquired input information, and a setting step of setting the calculated reference value in a lighting control device having the illuminance sensor and installed in the space.

[0006] A program according to one aspect of the present invention is a program for causing the computer to execute the setting method.

[0007] A lighting control device according to one embodiment of the present invention is a lighting control device installed in a space in which a lighting device is installed, and includes an illuminance sensor, a communication unit that receives input information from an information terminal, the input information including first information about the lighting device and second information about the space in which the lighting device is installed, and an information processing unit that calculates a reference value for determining a target value related to illuminance to be used for controlling the lighting device using the illuminance sensor based on the received input information. Effect of the Invention

[0008] The setting method etc. of the present invention can set target values ​​for controlling a lighting fixture using an illuminance sensor. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram showing a functional configuration of a lighting system according to an embodiment. [Diagram 2] FIG. 2 is a diagram showing an indoor space to which the lighting system according to the embodiment is applied. [Diagram 3] FIG. 3 is a sequence diagram of a first example of the setting operation of the lighting system according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an example of the input screen. [Diagram 5] FIG. 5 is a diagram illustrating an example of the maintenance rate information. [Figure 6] FIG. 6 is a diagram illustrating an example of the reflectance information. [Figure 7] FIG. 7 is a diagram illustrating an example of the illuminance factor information. [Figure 8] FIG. 8 is a diagram illustrating an example of characteristic information of the illuminance sensor. [Figure 9] FIG. 9 is a sequence diagram of an example of a control operation of the lighting system according to the embodiment. [Figure 10] FIG. 10 is a sequence diagram of a second example of the setting operation of the lighting system according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments will be described in detail with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component arrangement and connection forms, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present invention. In addition, among the components in the following embodiments, components that are not described in the independent claims will be described as optional components.

[0011] In addition, each drawing is a schematic diagram and is not necessarily a precise illustration. In addition, in each drawing, the same reference numerals are used for substantially the same configuration, and duplicated explanations may be omitted or simplified.

[0012] (Embodiment) [composition] First, the configuration of a lighting system according to an embodiment will be described. Fig. 1 is a block diagram showing a functional configuration of a lighting system according to an embodiment. Fig. 2 is a diagram showing an indoor space to which a lighting system according to an embodiment is applied. As shown in Figs. 1 and 2, a lighting system 10 includes a plurality of lighting fixtures 20, a lighting control device 30, and an information terminal 40. It is sufficient that the lighting system 10 includes at least one lighting fixture 20.

[0013] The lighting fixture 20 is a base light or the like that is installed on the ceiling of the indoor space 50 and illuminates the indoor space 50. The form of the lighting fixture 20 is not particularly limited, and may be a ceiling light, a downlight, a spotlight, or the like. Specifically, the lighting fixture 20 includes a wireless communication unit 21 and a light source 22.

[0014] Wireless communication unit 21 is a wireless communication circuit that enables lighting fixture 20 to perform wireless communication (more specifically, radio wave communication) with lighting control device 30. Specifically, wireless communication unit 21 performs wireless communication in accordance with a communication standard such as BLE (Bluetooth (registered trademark) Low Energy), Wi-Fi (registered trademark), or Zigbee (registered trademark), but the communication standard is not particularly limited.

[0015] The light source 22 irradiates white light into the indoor space 50 so that the lighting device 20 illuminates the indoor space 50. The light source 22 is realized by, for example, an LED (Light Emitting Diode) element, but may be realized by other light emitting elements such as a semiconductor laser, an organic EL (Electro-Luminescence), or an inorganic EL.

[0016] The lighting control device 30 is an integrated lighting control device with an illuminance sensor 31. The lighting control device 30 is installed on a ceiling or a wall of an indoor space 50, and controls lighting fixtures 20 based on the illuminance in the indoor space 50. The lighting control device 30 includes the illuminance sensor 31, a wireless communication unit 32, an information processing unit 33, and a storage unit 34.

[0017] The illuminance sensor 31 detects the illuminance (brightness) in the indoor space 50. The illuminance sensor 31 is realized by a photodiode, a phototransistor, or the like.

[0018] The wireless communication unit 32 is a wireless communication circuit that enables the lighting control device 30 to perform wireless communication (more specifically, radio wave communication) with the multiple lighting fixtures 20 and the information terminal 40. Specifically, the wireless communication unit 32 performs wireless communication in accordance with a communication standard such as BLE (Bluetooth (registered trademark) Low Energy), Wi-Fi (registered trademark), or Zigbee (registered trademark), but the communication standard is not particularly limited.

[0019] Information processing unit 33 performs information processing for controlling lighting device 20 based on the illuminance detected by illuminance sensor 31. Information processing unit 33 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of information processing unit 33 are realized by hardware such as a microcomputer or processor constituting information processing unit 33 executing a computer program (software) stored in storage unit 34.

[0020] The storage unit 34 is a storage device that stores various information used by the information processing unit 33, such as computer programs executed by the information processing unit 33. The storage unit 34 is realized by, for example, a semiconductor memory.

[0021] The information terminal 40 is an information terminal operated by a user to perform settings (initial settings) of the lighting control device 30. The information terminal 40 is, for example, a general-purpose mobile terminal such as a smartphone or a tablet terminal, but may also be a dedicated terminal for the lighting system 10. Specifically, the information terminal 40 includes an operation receiving unit 41, a display unit 42, a wireless communication unit 43, an information processing unit 44, and a storage unit 45.

[0022] The operation reception unit 41 receives operations from a user. Specifically, the operation reception unit 41 is realized by a touch panel or the like.

[0023] The display unit 42 is a display that displays an image and is realized by a display panel such as a liquid crystal panel or an organic EL (Electro-Luminescence) panel.

[0024] The wireless communication unit 43 is a wireless communication circuit for the information terminal 40 to perform wireless communication (more specifically, radio wave communication) with the lighting control device 30. Specifically, the wireless communication unit 43 performs wireless communication according to a communication standard such as BLE (Bluetooth (registered trademark) Low Energy), Wi-Fi (registered trademark), or Zigbee (registered trademark), but the communication standard is not particularly limited.

[0025] The information processing unit 44 processes information related to the settings of the lighting control device 30. The information processing unit 44 is realized by, for example, a microcomputer, but may also be realized by a processor or a dedicated circuit. The functions of the information processing unit 44 are realized by hardware such as a microcomputer or a processor constituting the information processing unit 44 executing a computer program (software) stored in the storage unit 45.

[0026] The storage unit 45 is a storage device that stores various information used by the information processing unit 44, such as computer programs executed by the information processing unit 44. The storage unit 45 is realized by, for example, a semiconductor memory. The computer programs stored in the storage unit 45 include a predetermined application program (hereinafter also simply referred to as a predetermined app) for setting the lighting control device 30.

[0027] [Settings example 1] In lighting system 10, when a user specifies a command value (0% to 100%), lighting control device 30 controls the dimming of multiple lighting devices 20 so that the illuminance detected by illuminance sensor 31 becomes the illuminance corresponding to the command value.

[0028] Here, the following method can be considered as a method for matching the 100% instruction value with the illuminance detected by illuminance sensor 31 when each of the multiple lighting fixtures 20 is illuminated with a dimming rate of 100%. In this method, each of the multiple lighting fixtures 20 is actually illuminated with a dimming rate of 100% at night when no external light enters indoor space 50, and the voltage value output by illuminance sensor 31 at that time (the voltage value indicating the illuminance detected by illuminance sensor 31) is set as the reference value. Problems with this method are that the work to set the reference value must be performed at night, which is time-consuming and there are also restrictions on the time period in which the work can be performed.

[0029] On the other hand, in the lighting system 10, the user can set the reference values ​​by manually inputting various pieces of information into the information terminal 40. Hereinafter, a first example of the setting operation of the lighting system 10 will be described. Fig. 3 is a sequence diagram of the first example of the setting operation of the lighting system 10.

[0030] The user performs a predetermined operation on the information terminal 40 to display an input screen, and the operation reception unit 41 receives the predetermined operation (S11). When the predetermined operation is received, the information processing unit 44 displays the input screen on the display unit 42 (S12). Fig. 4 is a diagram showing an example of the input screen. The information terminal 40 on which the input screen is displayed functions as a GUI (Graphical User Interface).

[0031] As shown in FIG. 4, the input screen allows input of the type of lighting fixture 20, the luminous flux of lighting fixture 20, the number of lighting fixtures 20, the dimensions of indoor space 50, the components that define indoor space 50, and the environment of indoor space 50.

[0032] The type of lighting fixture 20 indicates what type of structure lighting fixture 20 has, such as a base light, a ceiling light, etc., and is expressed by a product number, etc. If the types of lighting fixtures 20 controlled by lighting control device 30 are limited and can be determined automatically, the type of lighting fixture 20 does not need to be input.

[0033] The luminous flux of lighting fixture 20 is the luminous flux when lighting fixture 20 is caused to emit light at a predetermined color temperature with a dimming rate of 100%. The luminous flux of lighting fixture 20 may be automatically input by inputting the type of lighting fixture 20. The automatic input can be realized by information terminal 40 (information processing unit 44) inquiring about the luminous flux from a server device (not shown) that manages the specifications of lighting fixture 20 (the correspondence between the type of lighting fixture 20 and the luminous flux of the lighting fixture 20).

[0034] The number of lighting fixtures 20 is the total number of lighting fixtures 20 installed in indoor space 50, in other words, the total number of lighting fixtures 20 that are targets of control by lighting control device 30.

[0035] The dimensions of the interior space 50 are the width, depth, and height of the interior space 50 (rectangular parallelepiped).

[0036] Specifically, the components that define the interior space 50 are the components (finishing materials, etc.) that constitute the surfaces of the walls, floor, and ceiling. The user selects the components of the walls, floor, and ceiling from options prepared in advance.

[0037] The environment of the indoor space 50 means whether the indoor space 50 is a good environment for the lighting fixture 20 from the viewpoint of maintaining the lighting fixture 20. The environment of the indoor space 50 is selected from three options, for example, "good", "average", and "poor".

[0038] 4 is displayed, the user performs an input operation of the various pieces of information described above, and the input operation is accepted (S13). The information processing unit 44 transmits the information input by the input operation (hereinafter also referred to as input information) to the lighting control device 30 using the wireless communication unit 43 (S14). The input information includes first information about the lighting fixtures 20 (type, luminous flux, and number of the lighting fixtures 20) and second information about the indoor space 50 (dimensions, materials, and environment of the indoor space 50).

[0039] Wireless communication unit 32 of lighting control device 30 receives the input information. Information processing unit 33 acquires the input information (S15), and determines the maintenance rate based on the type of lighting fixture 20, the environment of indoor space 50, and maintenance rate information pre-stored in memory unit 34 from the acquired input information (S16). Fig. 5 is a diagram showing an example of the maintenance rate information.

[0040] 5, the maintenance rate information specifies a maintenance rate according to the environment for each type of lighting fixture 20. If the type of lighting fixture 20 is type B and the environment is "good", the information processing unit 33 can determine the maintenance rate as 0.69. The maintenance rate is a correction coefficient for lighting design that takes into account the decrease in brightness of lighting fixture 20 over time.

[0041] Next, the information processing unit 33 calculates the area and room index of the indoor space 50 based on the dimensions of the indoor space 50 from the acquired input information (S17). If the width of the indoor space 50 is X, the depth of the indoor space 50 is Y, and the height of the indoor space 50 is H, the information processing unit 33 can calculate the area A of the indoor space based on the formula A=X×Y, and can calculate the room index K based on the formula K=X×Y / (X+Y)×H.

[0042] For example, if width X = 6 m, depth Y = 10 m, and height H = 2.4 m, then K is calculated as K = 6 x 10 / (6 + 10) x 2.4 = 1.56. The room index is an index that indicates how efficiently the luminous flux of lighting fixture 20 can be utilized depending on the ratio of the width to the depth of indoor space 50.

[0043] Next, the information processing unit 33 determines the light reflectance of each of the walls, floor, and ceiling based on the materials (finishing materials, etc.) that define the indoor space 50 from the acquired input information and the reflectance information previously stored in the storage unit 34 (S18). Fig. 6 is a diagram showing an example of the reflectance information.

[0044] 6, in the reflectance information, the reflectance of each component is specified. The information processing unit 33 can determine the reflectance, for example, 70% if the wall is painted white.

[0045] Next, the information processing unit 33 calculates the illumination factor based on the type of lighting fixture 20 from the acquired input information, the room index calculated in step S17, the reflectances of the walls, floor, and ceiling determined in step S18, and the illumination factor information pre-stored in the storage unit 34 (S19). Fig. 7 is a diagram showing an example of the illumination factor information.

[0046] 7, the information processing unit 33 can calculate the illumination factor from the type of lighting fixture 20, the room index, and the reflectances of the walls, floor, and ceiling, using the illumination factor information. For example, if lighting fixture 20 is type B, the reflectance of the walls is 50%, the reflectance of the floor is 30%, the reflectance of the ceiling is 70%, and the room index is 2.5, the illumination factor is calculated to be 0.78. The illumination factor indicates the proportion of the luminous flux that reaches the irradiated surface out of the luminous flux emitted from lighting fixture 20.

[0047] Next, information processing unit 33 calculates a reference illuminance (S20). The reference illuminance is the illuminance detected by illuminance sensor 31 when each of the multiple lighting devices 20 is illuminated with a dimming rate of 100%. Information processing unit 33 calculates reference illuminance E using the formula E=F×N×U×M / A, where F is the luminous flux of lighting device 20, N is the number of lighting devices 20, U is the illumination rate, M is the maintenance rate, and A is the area of ​​indoor space 50. The reference illuminance in this case is a theoretical reference illuminance obtained by calculation, and does not include illuminance caused by external light.

[0048] For example, the area of ​​the indoor space 50 is A = 30 m 2 If the number of lighting fixtures 20 N = 10, the luminous flux F of the lighting fixtures 20 = 3500 lm, the illumination rate U = 0.4, and the maintenance rate M = 0.7, then E is calculated as E = 3500 x 10 x 0.4 x 0.7 / 30 = 327 [lx].

[0049] Next, the information processing unit 33 converts the reference illuminance into a reference value based on the characteristic information of the illuminance sensor 31 (S21), and stores (sets) the reference value in the storage unit 34 (S22). Fig. 8 is a diagram showing an example of the characteristic information of the illuminance sensor 31.

[0050] The characteristic information is information that indicates a change in the output voltage value of the illuminance sensor 31 in response to a change in illuminance detected by the illuminance sensor 31. When the output voltage value changes linearly with a change in illuminance, the characteristic information is expressed by the formula y (output voltage value) = ax (illuminance) + b, where a and b are coefficients. The information processing unit 33 can determine the reference value (the output voltage value corresponding to the reference illuminance) by substituting the reference illuminance for x in y = ax + b.

[0051] In this way, the user of the lighting system 10 can set the reference value by inputting various information into the information terminal 40. The user can set the reference value without actually turning on each of the multiple lighting fixtures 20 at 100% dimming rate at night.

[0052] [Example of control operation] Next, a description will be given of the operation of lighting system 10 to control the brightness of indoor space 50 (in other words, the operation of controlling a plurality of lighting devices 20). FIG 9 is a sequence diagram of an example of the control operation of lighting system 10.

[0053] The user performs a designation operation to designate a brightness instruction value (0% to 100%), and the operation reception unit 41 receives the designation operation (S31). The information processing unit 44 transmits the instruction value designated by the designation operation to the lighting control device 30 using the wireless communication unit 43 (S32).

[0054] The wireless communication unit 32 of the lighting control device 30 receives the instruction value. The information processing unit 33 acquires the instruction value (S33), and determines a target value based on the acquired instruction value and the reference value stored (set) in the storage unit 34 in step S22 (S34).

[0055] Since 100% (maximum value) of the instruction value corresponds to the reference illuminance, the horizontal axis of the characteristic information in Fig. 8 can be interpreted as the instruction value. The information processing unit 33 can determine the target value by substituting the instruction value for x in the equation y (output voltage value) = a'x (instruction value) + b, which is obtained when the horizontal axis of the characteristic information in Fig. 8 is interpreted as the instruction value. a' and b are coefficients.

[0056] Next, the information processing unit 33 acquires a current value (current output voltage value) indicating the current illuminance of the indoor space 50 outputted by the illuminance sensor 31 (S35), and determines whether the acquired current value differs from the target value determined in step S34 (S36). Note that the current value is a value indicating the illuminance of the indoor space 50 including the influence of external light, etc.

[0057] If information processing unit 33 determines that the current value is the same as the target value, the process from step S37 onwards is not performed. On the other hand, if information processing unit 33 determines that the current value is different from the target value, it calculates a control value for changing the dimming rate of multiple lighting devices 20 (S37) and transmits the calculated control value to multiple lighting devices 20 (S38). The control value is obtained, for example, by converting the difference between the current value and the target value into a dimming rate.

[0058] Upon receiving the control value, each of the lighting devices 20 dims the light source 22 in accordance with the received control value (S39). As a result, the brightness of the indoor space 50 is controlled to a value corresponding to the instruction value designated in step S31.

[0059] [Example of setting operation 2] In the above-mentioned setting operation example 1, the process of calculating the reference value based on the input information is executed by the lighting control device 30. Here, the process of calculating the reference value based on the input information may be executed by the information terminal 40. Hereinafter, such a setting operation example 2 of the lighting system 10 will be described. Fig. 10 is a sequence diagram of the setting operation example 2 of the lighting system 10.

[0060] 10, the processing of steps S41 to S43 is similar to steps S11 to S13 in setting operation example 1. Moreover, the processing of steps S43 to S50 is similar to steps S15 to S21 in setting operation example 1. If the information processing unit 33 and the storage unit 34 in steps S15 to S21 in setting operation example 1 are replaced with the information processing unit 44 and the storage unit 45, the processing will be the same as steps S41 to S50, and detailed description thereof will be omitted.

[0061] When the reference value is obtained in step S49, the information processing unit 44 transmits the reference value to the lighting control device 30 using the wireless communication unit 43 (S51).

[0062] The wireless communication unit 32 of the lighting control device 30 receives the reference value. The information processing unit 33 stores (sets) the received reference value in the storage unit 34 (S52). That is, in step S51, the information terminal 40 (information processing unit 44) transmits the reference value to the lighting control device 30, thereby setting the reference value in the lighting control device 30.

[0063] In this way, the process of calculating the reference value based on the input information may be performed by the information terminal 40. This configuration has the advantage of simplifying the information processing performed by the lighting control device 30. In other words, there is an advantage that the lighting control device 30 can be realized at low cost.

[0064] [Variations] In the above embodiment, lighting fixture 20 and lighting control device 30 are installed in indoor space 50, but they may also be installed in an outdoor space or a semi-outdoor space.

[0065] In the above embodiment, lighting device 20 is described as emitting light at a predetermined color temperature, but lighting device 20 may be a lighting device with a color-adjusting function. In this case, the reference value may be calculated for each color temperature, such that a reference value is calculated when lighting device 20 emits light at a first color temperature, and a reference value is calculated when lighting device 20 emits light at a second color temperature.

[0066] [Effects, etc.] Hereinafter, examples of inventions that can be obtained from the disclosure of this specification will be given, and the effects and the like that can be obtained from the inventions will be described.

[0067] Invention 1 is a setting method executed by a computer, the setting method including an acquisition step S15 (or S44) of acquiring input information entered into an information terminal 40, the input information including first information about the lighting fixture 20 and second information about an indoor space 50 in which the lighting fixture 20 is installed, calculation steps S16 to S21 (or S45 to S50) of calculating, based on the acquired input information, a reference value for determining a target value related to illuminance to be used for controlling the lighting fixture 20 using an illuminance sensor 31, and a setting step S22 (or S52) of setting the calculated reference value in a lighting control device 30 having an illuminance sensor 31 installed in the indoor space 50.

[0068] According to this setting method, the user can set target values ​​(specifically, set reference values) for controlling lighting device 20 using illuminance sensor 31 by inputting information into information terminal 40. This setting method makes it possible to set the target values ​​without having to actually cause lighting device 20 to emit light in indoor space 50.

[0069] Invention 2 is a setting method of Invention 1 in which the input information includes the luminous flux of lighting fixtures 20 and the number of lighting fixtures 20 as first information, and in calculation steps S16 to S21 (or S45 to S50), the area of ​​indoor space 50 and the illumination factor in indoor space 50 are calculated based on the second information, and a maintenance factor of lighting fixtures 20 in indoor space 50 is determined. Where the luminous flux of lighting fixtures 20 is F, the number of lighting fixtures 20 is N, the illumination factor is U, the maintenance factor is M, and the area of ​​indoor space 50 is A, a standard value corresponding to the standard illuminance is calculated by calculating standard illuminance E using the formula E=F×N×U×M / A.

[0070] This setting method can calculate the reference value by calculating the area of ​​the indoor space 50 and the lighting rate in the indoor space 50 based on the input information, and determining the maintenance rate of the lighting fixtures 20 in the indoor space 50.

[0071] Invention 3 is a setting method of Invention 2, in which the input information includes the dimensions of the indoor space 50 and the components that define the indoor space 50 as second information, and in calculation steps S16 to S21 (or S45 to S50), a room index of the indoor space 50 is calculated based on the information indicating the dimensions of the indoor space 50, a light reflectance in the indoor space 50 is determined based on information indicating the components that define the indoor space 50, and an illumination coefficient is calculated based on the calculated room index and the determined reflectance.

[0072] This setting method can calculate the illuminance coefficient by calculating the room index and determining the light reflectance based on input information.

[0073] Invention 4 is the setting method according to any one of Inventions 1 to 3, in which the computer is provided in the lighting control device 30. Such a computer is the information processing unit 33, for example.

[0074] This setting method simplifies the information processing performed by information terminal 40, and enables setting of target values ​​for controlling lighting device 20 using illuminance sensor 31.

[0075] Invention 5 is the setting method of Invention 4, further including step S33 of acquiring a brightness instruction value designated by the user, step S34 of determining a target value based on the acquired instruction value and a set reference value, step S35 of acquiring a current value indicating the current illuminance of indoor space 50 output by illuminance sensor 31, and step S38 of transmitting to lighting device 20 a control value for changing the dimming rate of lighting device 20 if the acquired current value differs from the determined target value.

[0076] This setting method makes it possible to control the lighting fixture 20 so that the illuminance in the indoor space 50 is constant.

[0077] Invention 6 is the setting method according to any one of Inventions 1 to 3, in which the computer is provided in the information terminal 40. Such a computer is, for example, the information processing unit 44.

[0078] This setting method simplifies the information processing performed by lighting control device 30, and enables setting of target values ​​for controlling lighting device 20 using illuminance sensor 31.

[0079] The seventh aspect of the present invention is a program for causing a computer to execute any one of the setting methods of the first to sixth aspects of the present invention.

[0080] According to such a program, a user can input information to information terminal 40 to set target values ​​for controlling lighting device 20 using illuminance sensor 31.

[0081] Invention 8 is a lighting control device 30 installed in an indoor space 50 in which a lighting fixture 20 is installed, comprising an illuminance sensor 31, a wireless communication unit 32 that receives input information from the information terminal 40, the input information including first information about the lighting fixture 20 and second information about the indoor space 50 in which the lighting fixture 20 is installed, and an information processing unit 33 that calculates, based on the received input information, a reference value for determining a target value related to illuminance to be used for controlling the lighting fixture 20 using the illuminance sensor 31.

[0082] With this lighting control device 30, a user can input information to information terminal 40 to set target values ​​for controlling lighting device 20 using illuminance sensor 31.

[0083] (Other embodiments) Although the embodiment has been described above, the present invention is not limited to the above embodiment.

[0084] For example, in the above embodiment, the process executed by a specific processing unit may be executed by another processing unit. Also, the order of multiple processes may be changed, or multiple processes may be executed in parallel.

[0085] In the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

[0086] Furthermore, each component may be realized by hardware. For example, each component may be a circuit (or an integrated circuit). These circuits may form a single circuit as a whole, or each may be a separate circuit. Furthermore, each of these circuits may be a general-purpose circuit, or a dedicated circuit.

[0087] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM, or may be realized as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0088] For example, the present invention may be realized as the lighting system, lighting fixture, lighting control device, or information terminal of the above-mentioned embodiments, or as a method executed by a computer of the lighting system, lighting fixture, lighting control device, information terminal, or the like. The present invention may be realized as a program for causing a computer to execute such a method, or as a non-transitory recording medium on which such a program is recorded. Such a program includes an application program for causing a general-purpose computer to function as the lighting control device or information terminal of the above-mentioned embodiments.

[0089] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art may think of, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present invention. [Explanation of symbols]

[0090] 10. Lighting System 20 Lighting equipment 21, 32, 43 Wireless communication section 22 Light source 30 Lighting control device 31 Illuminance sensor 33, 44 Information Processing Section 34, 45 Storage section 40 Information terminal 41 Operation reception section 42 Display section 50 Indoor space

Claims

1. 1. A computer-implemented configuration method, comprising: an acquiring step of acquiring input information inputted to an information terminal, the input information including first information about the lighting device and second information about a space in which the lighting device is installed; a calculation step of calculating a reference value for determining a target value for illuminance to be used for controlling the lighting device using an illuminance sensor based on the acquired input information; and setting the calculated reference value in a lighting control device that is installed in the space and has the illuminance sensor. How to set it up.

2. the input information includes, as the first information, a luminous flux of the lighting device and a number of the lighting devices; In the calculation step, Calculating an area of ​​the space and a lighting factor in the space based on the second information, and determining a maintenance factor of the lighting fixtures in the space; The luminous flux of the lighting device is F, the number of the lighting devices is N, the illumination rate is U, the maintenance rate is M, and the area of ​​the space is A. The standard illuminance E is calculated using the formula E = F x N x U x M / A, and the standard value corresponding to the standard illuminance is calculated. The setting method according to claim 1 .

3. The input information includes a dimension of the space and a member that defines the space as the second information, In the calculation step, Calculating a room index of the space based on information indicating the dimensions of the space; determining a reflectance of light in the space based on information indicating a member that defines the space; Calculating the illuminance coefficient based on the calculated room index and the determined reflectance. The setting method according to claim 2 .

4. The computer is provided by the lighting control device. The setting method according to claim 1 .

5. moreover, obtaining a brightness indication value indicated by a user; determining the target value based on the acquired indication value and the set reference value; obtaining a current value indicating a current illuminance of the space output by the illuminance sensor; and transmitting a control value to the lighting device for changing the dimming rate of the lighting device when the obtained current value is different from the determined target value. The setting method according to claim 4.

6. The computer is provided by the information terminal. The setting method according to claim 1 .

7. A program for causing a computer to execute the setting method according to any one of claims 1 to 6.

8. A lighting control device that is installed in a space in which lighting fixtures are installed, An illuminance sensor; a communication unit that receives, from an information terminal, input information input to the information terminal, the input information including first information about a lighting device and second information about a space in which the lighting device is installed; and an information processing unit that calculates, based on the received input information, a reference value for determining a target value for illuminance used to control the lighting device using the illuminance sensor. Lighting control device.

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