JP3849168B2 - Illuminance level recorder, lighting control device and centralized monitoring control system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to integrated lighting control of natural light (daylight) and artificial light. In particular, the illuminance is measured and recorded by an optical sensor in an area that is relatively susceptible to brightness due to daylight, particularly near the window, thereby providing illumination and the like. The present invention relates to a lighting control system for the purpose of performing automatic control of a load of a lamp.
[0002]
[Prior art]
In recent years, with the enlargement of buildings, the depth of the room has become deeper, and the illuminance necessary to perform long-time sewing, precision work, etc., that is, the portion below the standard daylight rate of 300 lx has increased. There is an increasing situation in which artificial lighting for assisting daylighting in a room is always turned on.
[0003]
The daylight rate decreases rapidly when moving away from the window, and then gradually decreases after decreasing to some extent. Therefore, conventionally, artificial lighting is always turned on at some distance from the window, and for artificial lighting in the vicinity of the window, the total sky illuminance (outdoor brightness) is measured by an optical sensor. The brightness is controlled by turning on / off or dimming the illumination based on the above.
[0004]
However, the control according to the above conventional technique is performed on the premise that the intensity of light entering from the window is affected only by the whole sky illumination, and there is no requirement for conditions such as the degree of light transmission in the light entrance path. It was not considered. That is, brightness control (hereinafter referred to as daylight use control) is performed only under the condition that if the outside is bright, the vicinity of the window is simply brightened.
[0005]
By the way, as solutions to these problems, there are those described in Japanese Patent Application Laid-Open No. 6-111942 (Case 1) and Japanese Patent Application Laid-Open No. 6-140159 (Case 2). Case 1 detects the intensity of outdoor light and the illuminance at a predetermined position in the room, and supports dimming to obtain the desired illuminance by opening / closing the blind or controlling the illuminance of the illumination according to both data A memory table is automatically created and accurate daylighting lighting control is performed. Case 2 is based on the data of a monitoring terminal that collects data related to the opening and closing of blinds. Lighting control is performed when there is no relationship with illuminance.
[0006]
On the other hand, the illuminance data value detected by the light receiver (light sensor) varies depending on conditions such as the structure of the building, the location conditions, the installation location of the light receiver (light sensor), etc. In order to perform daylight use control (lighting control), set the reference level when performing daylight use control (lighting control), and the level of daylight actually incident at each light sensor installation location. It is necessary to measure in advance.
[0007]
Conventionally, as a method for determining these setting levels, a level meter is provided in the optical sensor controller, and the indicated value is automatically recorded on a handwritten or a recorder, and the setting level is determined based on this value. However, according to such a method, in any of the above cases, a dedicated illuminance measurement device is required, and an operator goes to a plurality of sites (locations where the optical sensor controller is installed), and data from these measurement devices is obtained. It takes time to determine (set) the setting level and frequently (for example, until the optimum setting level value is determined, or changes due to seasonal changes). Etc.) There is a problem that the setting value of the setting level cannot be changed.
[0008]
Even when the optimum setting level value is set by the above method, if the curtains or blinds are closed when, for example, direct sunlight enters from a window on a hot summer day, etc., daylight usage control (lighting control) ) The function does not function normally, for example, there is a problem that the illuminance of the artificial lighting near the window is reduced and the window becomes dark.
[0009]
[Problems to be solved by the invention]
As described above, the illuminance data value detected by the light receiver (light sensor) is more accurate because the level of incident light differs depending on conditions such as the structure of the building, the site conditions, the installation location of the light receiver (light sensor), etc. In order to perform daylight utilization control (illumination control), the standard setting level when performing daylight utilization control (lighting control) is set for each daylight sensor installation location. The level needs to be measured in advance.
[0010]
As a method for determining these setting levels, a level meter is provided in the optical sensor controller, and the indicated value is automatically recorded by handwriting or a recorder, and the setting level is determined based on this value. However, according to such a method, in any of the above cases, a dedicated illuminance measurement device is required, and an operator goes to a plurality of sites (locations where the optical sensor controller is installed), and data from these measurement devices is obtained. It takes time to determine (set) the setting level and frequently (for example, until the optimum setting level value is determined, or changes due to seasonal changes). Etc.) There is a problem (defect) that the setting value of the setting level cannot be changed.
[0011]
Therefore, in view of such problems, the present invention eliminates the need for an operator to go to a plurality of sites (locations where optical sensor controllers are installed) and collect data from these measuring devices, and frequently (for example, Until the optimal setting level value is determined, or when it is necessary to change due to seasonal changes, etc.) Illuminance that can change the setting value of the setting level, etc., and enable more accurate lighting control An object of the present invention is to provide a level recorder, a lighting control device, and a centralized monitoring control system.
[0012]
[Means for Solving the Problems]
  According to the invention of claim 1Lighting control deviceA light receiving means for receiving natural light or artificial light and generating an electric signal corresponding to the received light level; a sampling means for sampling the electric signal from the light receiving means at predetermined intervals; and sampled by the sampling means Quantization means for quantizing an electrical signal level and converting it into illuminance level data; storage means for storing the illuminance level data; illuminance level data writing means for writing the illuminance level data in the storage means; Display means for reading and displaying the stored illuminance level data sequentially from the latest stored data;An illuminance level recorder comprising: a threshold setting means for setting a threshold determined based on an output result of illuminance level data from a display means of the illuminance level recorder; an illumination device capable of dimming control; When the current illuminance level received by the light receiving unit is higher than the threshold set by the threshold setting unit, the lighting device is turned off or dimming control is performed. When the current illuminance level is lower than the threshold, the lighting device is operated. Means for controlling the operation of the lighting device to turn onIs.
[0013]
  Where:1According to the described invention, since the illuminance level data from the light receiving means is constantly taken in and stored in the storage means, the operator went to the site (place where the lighting control device is installed). At that time, the illuminance level data from the light sensor has already been acquired, and the change of the illuminance level necessary for setting the setting level value (threshold value) can be obtained immediately and the threshold setting work is efficient. Can be done well.
  Here, as a method for turning on / off the lighting device, for example, a switching means using a relay circuit can be used, and as a method for performing dimming control, PWM signal control or, for example, 0V to 10V is used. Switch means for dimming according to the voltage signal can be used. However, it is not limited to these.
[0018]
  Claim2The centralized monitoring and control system according to the present invention includes: a means for reading a date and time; a means for obtaining an incident direction of sunlight based on the date and time; a means for detecting the shade of the sun; It is determined whether direct light is inserted when in the incident direction.1Illuminance level recorder orHaA means for determining the season from the date; a means for performing daylight use control; a detection result of the shade of the sun; a determination result of whether the direct light is inserted; and a determination result of the season Means for determining whether or not to perform daylight use control based on the above; and means for performing daylight use control for a certain period of time when it is determined to perform daylight use control.
  Claim3The centralized monitoring and control system according to the present invention includes a means for reading a date and time; a means for obtaining an incident direction of sunlight based on the date and time; and an obstacle that blocks sunlight in the incident direction of sunlight. Means for determining whether or not there is; means for detecting the shade of the sun; and determining whether or not direct light is inserted in the incident direction of sunlight.1Illuminance level recorder orHaA light control device; a means for determining the season from the date; a means for performing daylight utilization control; a determination result as to whether there is an obstacle that blocks the sunlight; a detection result of the shade of the sun; Means for determining whether or not to perform daylight use control based on the determination result of whether the direct light is inserted and the determination result of the season; Means for performing control for a certain period of time;
  Claim4The centralized monitoring control system according to the invention described in claim 12 or 3In the centralized monitoring and control system described in the above, the daylight utilization control is performed, and at the same time, the manual operation of the lighting device is disabled.
  Claim5The centralized monitoring control system according to the invention described in claim 12, 3 or 4In the centralized monitoring control system described in the above, the detection of the shade of the sun is performed based on illuminance data obtained from a sunshine meter,
  Claim6The centralized monitoring control system according to the invention described in claim 12 to 5In the centralized monitoring control system according to any one of the above, the daylight utilization control uses each output of daylight illumination in a window room interior; artificial illumination in a window room interior; and a light sensor attached outside the window room interior. To do.
[0019]
  Where:2, 3, 5 and 6According to the described invention, when a person working at the window is exposed to direct sunlight, he / she predicts a situation in which he / she feels uncomfortable and wants to close the curtain or blind. Has a function to prevent daylight usage control, so that it is possible to provide a comfortable lighting environment for the worker at the window and to obtain an energy saving effect. Further, according to the invention of claim 10, when sufficient illumination can be obtained by daylighting for an operator at the window, manual lighting control is completely prohibited and daylighting is forcedly performed. Since it is used, a certain energy saving effect can be obtained.
[0020]
  Claim7The centralized monitoring control system according to the invention described in claim 12 to 6In the centralized monitoring and control system according to any one of the above, the daylight utilization control is reviewed at a certain time interval to determine whether or not to continue the control.
[0021]
  Where:7According to the described invention, whether or not to perform daylight use control is reviewed at regular intervals.LikeTherefore, it is possible to provide a more comfortable lighting environment for workers at the window.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of an illumination control device integrated with an illuminance level recorder of the present invention.
[0023]
In FIG. 1, an AC power supply AC100V is input via a terminal 33 to an illumination control device (hereinafter simply referred to as an illumination control device) 63 integrated with an illuminance level recorder. Driving power is supplied to each circuit constituting the device 63.
[0024]
An illuminance level detected by an optical sensor (light receiver) 31 composed of a photodiode or the like is amplified by an amplifier 32 and input to the microcomputer 37 via a terminal 34 through an A / D converter 36. For example, a memory 38 that cyclically stores illuminance levels cyclically for 48 hours at intervals of 5 minutes, and a command for causing the contents stored in the memory 38 to be displayed on the display unit 40 and for controlling the operation of the microcomputer 37. Is connected to the operation unit 39.
[0025]
Further, the microcomputer 37 is connected to a switch unit 41 for turning on (driving) a load such as the illumination 46 by an AC power supply 45, and outputs the contents of the memory 38 to an external display (storage) means such as a printer. For this purpose, it is connected to a terminal 49 through a printer I / F 43.
[0026]
Furthermore, as a configuration in which the lighting control device 63 according to the present invention is used as one terminal of a larger system, that is, a lighting control terminal (device), communication is performed with the address setting unit 44 and the central control device (I / CCU (communication control unit) 42 and the like are connected, and for example, the CCU 42 is connected to two terminals 47 and 48 corresponding to the two-wire transmission line controlled by the central control unit. ing.
[0027]
Next, an example of the operation unit 39 and the display unit 40 will be described.
FIG. 2 shows one configuration example of the operation unit 39 and the display unit 40 of the illuminance level recorder of the present invention.
[0028]
As shown in FIG. 2, the display unit 40 includes, for example, display means including a one-digit LED indicating a date (0: today, 1: previous day, 2: two days before), and a two-digit LED indicating time. A date / time display unit 59 composed of a display unit composed of, for example, a two-digit LED indicating minute, and the memory stored in the date / time displayed on the date / time display unit 59. A level display unit 60 composed of a display means composed of a two-digit LED or the like for displaying the illuminance level, and a reference for controlling the switch unit 41 to turn on / off or dimming the illumination 46 It is comprised with the setting level display part 61 which displays an illumination intensity level setting value (value set by a user).
[0029]
The operation unit 39 also includes a date switch 62 for changing the display of the display means including a one-digit LED indicating the date (0: today, 1: previous day, 2: two days before), and the time. A time switch 52 for changing the display of the display means consisting of a 2-digit LED indicating the minute, a minute switch 53 for changing the display of the display means consisting of a 2-digit LED indicating the minute, and the date switch. 62, a level display switch 51 for reading out the illuminance level stored in the memory 38 at the date and time set by the hour switch 52 and the minute switch 53 from the memory 38 and displaying it on the level display unit 60, and the setting The date / time five minutes before the recorded date / time is displayed on the date / time display unit 59 and the illuminance level stored in the memory 38 at that date / time is read from the memory 38. The UP switch 54 to be displayed and displayed on the level display unit 60, and the date / time five minutes after the set date / time are displayed on the date / time display unit 59, and also stored in the memory 38 at the date / time. The stored illuminance level is read from the memory 38 and displayed on the level display unit 60, and the illuminance level detected by the optical sensor (light receiver) 31 is cyclically stored for 48 hours at 5-minute intervals. A start / stop switch 57 for interrupting or resuming the processing always stored in 38, and a level for changing an illuminance level setting value used as a reference for turning on / off or dimming the illumination 46 The switch 56 and the illuminance level setting value set by the level switch 56 are registered in the system (microcomputer 37). A setting switch 58 of the eye, formed by a print switch 64 for outputting illumination level data for 48 hours in the past five minute intervals stored in the memory 38 in the external recording or display device such as a printer.
[0030]
Next, the operation of the illumination control apparatus integrated with the illuminance level recorder configured as described above will be described.
FIG. 3 is a flowchart showing the recording operation of the illuminance level recorder according to the present invention.
[0031]
When the illuminance level recorder (illumination controller 63) is turned on or the illuminance data storage area of the memory 38 becomes full, the microcomputer 37 sets the write address of the memory 38 to the illuminance data storage area on the memory. (Step T1). On the other hand, it is detected by the optical sensor (receiver) 31, amplified by an amplifier 32, converted into a digital signal by an A / D converter 36 and input to a microcomputer 37. For example, illuminance data expressed in 1 byte is 1 minute. It is sampled every time and stored in a 5-byte temporary memory on the memory 38 as shown in FIG. 3 <b> (steps T2, T7, T8). When the temporary memory is full (after 5 minutes have elapsed), the sampling data (value) per minute in the temporary memory is averaged, and the level storage on the memory 38 as shown in FIG. It is written in the memory (steps T2, T3, T4), and the write address is added by 1 byte (step T5). Furthermore, the storage capacity when the write address (value) does not exceed 576 (bytes), that is, when the illuminance data expressed by 1 byte is recorded in 5 minutes for 2 days,
24 x 2 x (60/5) = 576 (bytes)
Is determined (step T6). If the write address (value) changed in step T5 does not exceed 576 (bytes), the process proceeds to step T2, and the next (one byte ahead) address is reached. When the illuminance data is written every 5 minutes and the write address (value) changed in step T5 exceeds 576 (bytes), the process proceeds to step T1, and the write address (value) is stored in the illuminance data storage. The head position of the area is set, and the illuminance data in increments of 5 minutes is overwritten on the old data (recorded cyclically). Thereby, the illuminance data for the past 48 hours is always stored in the illuminance data storage area of the memory 38.
[0032]
Next, an example of a method for reading the illuminance data stored in the memory 38 of the illuminance level recorder (illumination control device 63) as described above will be described.
FIG. 4 is a flowchart showing a procedure for reading illuminance data stored in the memory 38 of the illuminance level recorder (illumination control device 63).
[0033]
When illuminance data for the past 48 hours is stored in the illuminance data storage area of the memory 38, the current date / time by the date switch 62, hour switch 52, and minute switch 53 in the operation unit 39, or A date / time to be searched is set (step U1). Each time the date switch 62 is pressed, it is cyclically repeated as 0 → 1 → 2 → 0. Similarly, every time the hour switch 52 is pressed, the time is incremented by one hour from the time currently displayed. After 23, the time is returned to 0, and then cyclically repeated. The minute switch 53 is displayed every time it is pressed. The time is added one minute at a time, and after 59, it returns to 0, and is repeated cyclically thereafter. The date / time display unit 59 displays the current date / time as default data, and the date / time display unit 59 is operated by the date switch 62, hour switch 52, and minute switch 53 in the operation unit 39. When the key operation is not performed from the operation unit 39 for a predetermined time after the change operation is performed, for example, the default data display is performed.
[0034]
Then, by pressing the level display switch 51, the illuminance level stored in the memory 38 at the date / time displayed on the date / time display unit 59 (just set) is read from the memory 38, and the level It is displayed on the display unit 60 (steps U2, U3). Thereafter, the process returns from step U4 to step U1, and the date / time to be searched is directly input by the date switch 62, hour switch 52, and minute switch 53, and the illuminance level stored in the memory 38 at the date / time is input. You may get.
[0035]
Further, instead of directly reading the illuminance level, the process proceeds from step U4 to step U5, and relative call, that is, the UP switch 54 in the operation unit 39 is pressed (step U5), thereby the date / time display unit 59 is displayed. The currently displayed (value set in step U1) date / time is changed to, for example, the date / time five minutes ago, and the contents of minus one address (one byte before) of the currently displayed level storage memory are changed. By displaying the (illuminance level corresponding to the date and time after the change) on the level display unit 60 and repeatedly pressing the UP switch 54, the change of the illuminance level is traced back to the past one by one (every 5 minutes). You can see (Steps U5, U6, U9, U5), or by pressing down the DOWN switch 55 (Step U7), the date and time The date / time currently displayed on the display unit 59 (the value set in step U1) is changed to, for example, the date / time after 5 minutes, and the currently displayed level storage memory plus one address (1 byte) The contents of (after) (the illuminance level corresponding to the date and time after the change) are displayed on the level display unit 60, and the DOWN switch 55 is repeatedly pressed, thereby sequentially (every 5 minutes) from a certain point in the past. You may make it see the change of an illumination level toward the present (step U5, U7, U8, U9, U5).
[0036]
  By recording the illuminance level read out as described above in time series, it is possible to know the change in the illuminance level of daylight detected by the optical sensor (light receiver) 31. As a matter of course, the actual illuminance level and the illuminance level detected by the light sensor (light receiver) 31 are designed to be proportional to each other. If the illuminance of is measured with another measuring device (illuminance meter, etc.) and the illuminance level detected by the optical sensor (light receiver) 31 at that time is associated with the actual illuminance level by the illuminance meter, By referring to the change in illuminance level measured by the optical sensor (receiver) 31, it is possible to determine at which level (level by the optical sensor 31) the illumination should be turned off / on or dimmed (threshold of the illuminance level). Determine the level switch 56 and settingswitchThe setting level value (threshold value) is determined by operating 58 and the level switch 56 is operated to adjust the setting level displayed on the setting level display unit 61 to the determined setting level value (threshold value). The set level (threshold value) is set by operating (pressing) the switch 58.
[0037]
In the above description, the contents of the level storage memory are sequentially read out to the date / time display unit 59 and the level display unit 60 to obtain a change in illuminance level. However, the print switch 64 of the operation unit 39 is pressed. As a result, the contents of the level storage memory can be output to a printer in a graph format.
[0038]
FIG. 5 is a diagram showing an example of the case where the change in the illuminance level stored in the level storage memory is obtained in the form of a graph from the printer output.
[0039]
Further, the change in illuminance level (historical data) is output not only to the printer but also to floppy disks, memory cards, etc. as storage data such as specific data for each season or weather, for example. good. Further, the change in illuminance level (historical data) may be read from a recording medium such as a floppy disk or a memory card using a personal computer or the like, and displayed and output in a form desired by the user.
[0040]
Now, in this way, by obtaining a change in the illuminance level of the day by the illuminance level recorder and analyzing it by the user, according to the set level value determined and set by the user, The operation performed by the illumination control device 63 shown in FIG. 1 will be described with reference to FIGS.
[0041]
In FIG. 1, the illuminance level detected by an optical sensor (light receiver) 31 composed of a photodiode or the like is amplified by an amplifier 32, and a predetermined period is given to a microcomputer 37 via a terminal 34 and an A / D converter 36. Is input. As described above, the input illuminance level is stored in the memory 38 by the microcomputer 37 and is compared with the setting level (threshold value) displayed on the setting level display unit 61 of FIG. When the illuminance level input from the optical sensor (light receiver) 31 is higher than the set level (threshold value), the microcomputer 37 controls the switch unit 41 to turn off the illumination 46 or perform dimming control. When the illuminance level input from the optical sensor (light receiver) 31 is lower than the set level (threshold), the switch unit 41 is controlled to turn on the illumination 46.
[0042]
Further, the microcomputer 37 outputs the comparison result between the illuminance level and the set level (threshold) together with the address set by the address setting unit 44 to the terminals 47 and 48 via the CCU 42.
[0043]
Next, an example in which the lighting control device 63 according to the present invention as described above is used as one terminal of a larger system, that is, a lighting control terminal (device) will be described.
[0044]
FIG. 6 is a block diagram showing an embodiment as an example of the centralized monitoring control system of the present invention.
[0045]
In FIG. 6, the central control unit 1 is connected to a watch 10, a sunshine meter terminal 4 connected to a sunshine meter 5, and rooms (rooms) 8, 9 and the like by a two-wire transmission line. Each of the rooms 8 and 9 includes control terminals 2a and 3a, wall switches 2b and 3b, and lighting control devices (or illuminance level recorders) 2c and 3c, respectively. The control terminal 2a is connected to a lighting device composed of an AC power supply 23 and a lighting 24, and the control terminal 3a is connected to a lighting device composed of an AC power supply 27 and a lighting 28, respectively. The control device 2c has a lighting device composed of an AC power supply 25 and an illumination 26, an optical sensor 6, and a printer 22. A printer 21 is also connected.
[0046]
Further, the central control device 1 performs an operation based on data from a two-wire transmission signal sent through the two-wire transmission line from the clock 10, the sunshine meter terminal 4, the illumination control devices 2c and 3c, and the date of the day. The daylight use control of the most appropriate artificial lighting for each room from the time and the preset time schedule, that is, the lighting equipment constituted by the AC power source 23 and the lighting 24, the AC power source 27 and the lighting 28 Each lighting device to be turned on / off or dimmed is controlled through the control terminals 2a and 3a. In some cases, daylight utilization control may be performed on the wall switches 2b and 3b.
[0047]
The illumination control devices 2c and 3c, as described above, supply the illuminance level detected by the optical sensors 6 and 7 to the central control device 1 through the two-wire transmission line, and are configured by the AC power supply 25 and the illumination 26. Control of the lighting equipment to be performed and the lighting equipment constituted by the AC power supply 29 and the lighting 30 is performed independently.
[0048]
Next, a specific operation example of FIG. 6 will be described. In the following description of the control and operation, the daylight utilization control of the room 8 is taken as an example. The illumination 24 is used to control the illuminance in an area that is relatively close to the window and is directly (largely) affected by sunlight, and the illumination 26 is relatively far from the window and indirectly (smallly) affected by sunlight. The following description will be made on the assumption that it is used to control the illuminance of the receiving area.
[0049]
FIG. 7 is a diagram showing an example of a building in which daylight utilization control of the artificial lighting is performed by the lighting control system according to the present invention.
[0050]
In FIG. 7, the sunshine meter 5 is installed on the roof of the building 11, and it is detected whether the sun is coming out or in a shaded state. And the optical sensors 6 and 7 are installed for each window on the upper left of the window 12 of each room, and the intensity | strength (illuminance level) of the sunlight irradiated to the window of each room is detected. In addition, a window 13 in each room is provided with a blind 13 and a curtain 14 for adjusting the amount of incident light.
[0051]
The daylight use control in each room of the building 11 configured as described above will be described below.
[0052]
FIG. 8 is a flowchart showing the processing of the central controller for performing daylight control of each room.
[0053]
If daylight utilization control is demonstrated using FIG. 8, the central control apparatus 1 will read the present date and time first from the timepiece 10 (step s1). Then, based on the date and time read out in step s1, the current incident direction of sunlight is calculated or obtained by searching the database when it has been calculated in advance (step s2). ).
[0054]
Next, the reading of the data of the sunshine meter 5 is performed through the sunshine meter terminal 4 connected to the sunshine meter 5 (step s3), and it is determined whether the sun is currently in the state or is in a shaded state. If it is detected (step s4) and it is determined that the sun is currently shaded, the daylight utilization control via the control terminal 2a, that is, the total sky illuminance (outdoor brightness) is detected by the optical sensor 6. The measured data (illuminance level) is read via the illumination control device 2c to which the optical sensor 6 is connected, and the illumination 24 is turned on / off or dimmed via the control terminal 2a based on the result. Thus, the control of the brightness of the artificial lighting for assisting the daylighting is started (step s7).
[0055]
If it is determined in step s4 that the sun is out, the process proceeds to step s5, and direct sunlight irradiation is performed based on the incident direction of sunlight obtained by the calculation of step s2 or database search. If there is, that is, whether or not to receive direct sunlight through the window, and it is determined not to receive direct sunlight, the illumination control to which the optical sensor 6 is connected is based on the data measured by the optical sensor 6. Daylight utilization control for assisting daylighting by reading through the device 2c and turning on or off the lighting 24 or adjusting the light through the control terminal 2a based on the result as described above. Is started (step s7).
[0056]
If it is determined in step s5 that direct sunlight is irradiated through the window, the process proceeds to step s6, and the season is determined based on the date read in step s1. Proceeding to s7, the data measured by the optical sensor 6 is read through the illumination control device 2c to which the optical sensor 6 is connected, and the illumination 24 is controlled through the control terminal 2a based on the result as described above. Start daylight usage control.
[0057]
In step s6, if the current season is not winter, the process proceeds to step s14, and daylight utilization control is not performed. If daylight use control is being performed, daylight use control is terminated.
[0058]
Further, when the process of step s14 or step s7 is completed, the central controller 1 starts a timer and enters a rest state for a preset time (steps s8 and s9). Even during this hibernation state, daylight utilization control is performed in step s7. This completes the process of determining and determining one cycle of lighting control, that is, whether to perform daylighting control (start) or not (end).
[0059]
In step s9, when the timer ends and the pause state is canceled, the process returns to step s1 to enter the next cycle of illumination control. As described above, the illumination 26 is controlled by the illumination control device 2c based on the data (illuminance level) detected and measured by the optical sensor 6.
[0060]
FIG. 9 is a diagram showing an example in which there is an obstacle that blocks sunlight next to a building in which daylight use control of artificial lighting is performed by the lighting control system according to the present invention.
[0061]
In FIG. 9, an obstacle such as a water tower 15 that blocks sunlight is present next to the building 11. In addition, since the structure of building 11 itself is the same as that of FIG. 7, description is abbreviate | omitted.
[0062]
Other daylight utilization control in each room of the building 11 configured as described above will be described below.
[0063]
FIG. 10 is a flowchart showing the processing of the central controller for performing daylight control when there is an obstacle in the vicinity of each room.
[0064]
If daylight utilization control is demonstrated using FIG. 10, the central control apparatus 1 will read the present date and time first from the timepiece 10 (step s1). Then, based on the date and time read out in step s1, the current incident direction of sunlight is calculated or obtained by searching the database when it has been calculated in advance (step s2). ), Go to step s10.
[0065]
In step s10, obstacles around the pre-registered building 11 that block sunlight, such as structural buildings such as water towers and obstacle data such as mountains and trees are read (step s10). It is determined whether or not there is an obstacle in the obstacle data that is related to the current incident direction of sunlight obtained in s2, that is, according to the current solar direction, the obstacle obstructs the incidence of sunlight. (Step s11) When such an obstacle exists, daylight utilization control through the control terminal 2a, that is, data obtained by measuring the total sky illuminance (outdoor brightness) by the optical sensor 6 is used. (Illuminance level) is read via the illumination control device 2c to which the optical sensor 6 is connected, and the illumination 24 is turned on / off or dimmed via the control terminal 2a based on the result. Light illumination To start the brightness control of artificial lighting to assist (step s7).
[0066]
If it is determined in step s11 that there is no obstacle that blocks sunlight, the data of the sunshine meter 5 is read via the sunshine meter terminal 4 connected to the sunshine meter 5. (Step s3) It is detected by the optical sensor 6 if it is determined whether the sun is currently in the shadowed state or not (step s4). The data (illuminance level) is read via the illumination control device 2c to which the optical sensor 6 is connected, and daylight usage control via the control terminal 2a is started based on the result (step s7). .
[0067]
If it is determined in step s4 that the sun is out, the process proceeds to step s5, and direct sunlight is calculated based on the incident azimuth of sunlight obtained by the calculation in step s2 or database search. If it is determined whether there is irradiation, that is, whether or not direct sunlight is irradiated through the window, and if it is determined that direct sunlight is not irradiated, the data (illuminance level) measured by the optical sensor 6 is used as the optical sensor 6. And the daylight utilization control via the control terminal 2a is started in the same manner as described above based on the result (step s7).
[0068]
If it is determined in step s5 that direct sunlight is irradiated through the window, the process proceeds to step s6, and the season is determined based on the date read in step s1. If the current season is, for example, winter Proceeding to step s7, the data (illuminance level) measured by the optical sensor 6 is read through the illumination control device 2c to which the optical sensor 6 is connected, and based on the result, the control terminal 2a is similarly used as described above. Start daylight usage control.
[0069]
In step s6, if the current season is not winter, the process proceeds to step s14, and daylight utilization control is not performed. If daylight use control is being performed, daylight use control is terminated.
[0070]
Further, when the process of step s14 or step s7 is completed, the central controller 1 starts a timer and enters a rest state for a preset time (steps s8 and s9). Even during this resting state, the daylight utilization control in step s7 is performed. The process of determining and determining one cycle of lighting control, that is, whether to perform daylight use control (start) or not (end) is completed.
[0071]
In step s9, when the timer ends and the pause state is canceled, the process returns to step s1 to enter the next cycle of illumination control. As described above, the illumination 26 is controlled by the illumination control device 2c based on the data (illuminance level) detected and measured by the optical sensor 6 as described above.
[0072]
FIG. 11 is a flowchart showing the processing of the central controller for performing daylight control of each room when the energy saving effect is given the highest priority.
[0073]
If daylight utilization control is demonstrated using FIG. 11, the central control apparatus 1 will read the present date and time first from the timepiece 10 (step s1). And based on the date and time read at step s1, it calculates | requires by calculating or searching a database the present azimuth | direction of sunlight (step s2).
[0074]
Next, the reading of the data of the sunshine meter 5 is performed through the sunshine meter terminal 4 connected to the sunshine meter 5 (step s3), and it is determined whether the sun is currently in the state or is in a shaded state. If it is detected (step s4) and it is determined that the sun is currently shaded, the daylight utilization control via the control terminal 2a, that is, the total sky illuminance (outdoor brightness) is detected by the optical sensor 6. The measured data (illuminance level) is read via the illumination control device 2c to which the optical sensor 6 is connected, and the illumination 24 is turned on / off or dimmed via the control terminal 2a based on the result. Thus, the control of the brightness of the artificial lighting for assisting the daylighting is started (step s7), and at the same time, the wall switch 2b and the like are controlled, and the manual control related to the lighting device is performed at all times other than in an emergency. Prohibited (Step s12 .
[0075]
If it is determined in step s4 that the sun is out, the process proceeds to step s5, and direct sunlight irradiation is performed based on the incident direction of sunlight obtained by the calculation of step s2 or database search. If it is determined whether there is any direct sunlight irradiation through the window, and if it is determined not to receive direct sunlight, the data (illuminance level) measured by the optical sensor 6 is connected to the optical sensor 6. The lighting control device 2c is read, and based on the result, the daylight utilization control is started via the control terminal 2a in the same manner as described above (step s7), and at the same time, the wall switch 2b and the like are controlled, Manual control related to the lighting device is completely prohibited except in an emergency (step s12).
[0076]
If it is determined in step s5 that direct sunlight is irradiated through the window, the process proceeds to step s6, and the season is determined based on the date read in step s1. Proceeding to s7, the data (illuminance level) measured by the optical sensor 6 is read via the illumination control device 2c to which the optical sensor 6 is connected, and based on the result, the daytime via the control terminal 2a is similarly determined. The light use control is started, and at the same time, the wall switch 2b and the like are controlled to prohibit any manual control related to the lighting device except in an emergency (step s12).
[0077]
In step s6, if the current season is not winter, the process proceeds to step s14, and daylight utilization control is not performed. If daylight use control is being performed, daylight use control is terminated.
[0078]
Further, when the process of step s14 or step s7 is completed, the central controller 1 starts a timer and enters a rest state for a preset time (steps s8 and s9). Note that the daylight utilization control in step s7 is performed even in this resting state. Then, if the wall switch 2b or the like is controlled by the process of step s12 and the manual control related to the lighting device is completely prohibited, the prohibition of the manual control is canceled (step s13).
[0079]
This completes the process of determining and determining one cycle of lighting control, that is, whether to perform daylighting control (start) or not (end).
[0080]
In step s9, when the timer ends and the pause state is canceled, the process returns to step s1 to enter the next cycle of illumination control. As described above, the illumination 26 is controlled by the illumination control device 2c based on the data (illuminance level) detected and measured by the optical sensor 6 as described above.
[0081]
In the embodiment of the present invention, the daylight use control (dimming control) of the lighting device based on the illuminance level value has been described. However, the present invention is not limited to this, and control is performed depending on the illuminance level value. Needless to say, the present invention can be applied to any device (apparatus) to perform the operation.
[0082]
【The invention's effect】
As described above, according to the illuminance level recorder (illumination control device) of the present invention, the illuminance level data by the optical sensor has already been acquired when going to the site (place where the illumination control device is installed). Since this is a state, a change in the illuminance level necessary for setting the setting level value (threshold value) can be known at that time, and the threshold setting operation can be performed efficiently. Illuminance level data can be displayed as a graph on the spot, or recorded on a floppy disk, for example, as data for each season or data for each weather. -Since analysis can be performed, work (determination of a threshold value, etc.) can be performed more accurately and efficiently.
[0083]
Further, according to the daylight use control by the centralized monitoring control system of the present invention, even when the outdoor is bright, when the necessity arises and the curtains and blinds are closed, it is detected in advance. Usage control does not work unconditionally, and thereby a comfortable lighting environment and energy saving effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of an illumination control device integrated with an illuminance level recorder of the present invention.
FIG. 2 is a diagram showing a configuration example of an operation unit and a display unit of an illuminance level recorder according to the present invention.
FIG. 3 is a flowchart showing a recording operation of an illuminance level recorder according to the present invention.
FIG. 4 is a flowchart showing a procedure for reading illuminance data stored in a memory of an illuminance level recorder (illumination control device).
FIG. 5 is a diagram showing an example of a case where a change in illuminance level stored in a level storage memory is obtained in a graph format from a printer output.
FIG. 6 is a block diagram showing an embodiment which is an example of a centralized monitoring control system of the present invention.
FIG. 7 is a diagram showing an example of a building in which daylight utilization control of the artificial lighting is performed by the lighting control system according to the present invention.
FIG. 8 is a flowchart showing processing of a central control device for performing daylight control of each room.
FIG. 9 is a diagram showing an example in which there is an obstacle that blocks sunlight next to a building in which daylight use control of artificial lighting is performed by the lighting control system according to the present invention.
FIG. 10 is a flowchart showing processing of a central control device for performing daylight control when there is an obstacle in the vicinity of each room.
FIG. 11 is a flowchart showing processing of the central control device for performing daylight control of each room when the energy saving effect is given the highest priority.
[Explanation of symbols]
31 ... Photodiode
32 ... Amplifier
33, 34, 47, 48, 49 ... terminals
35 ... Power supply
36 ... A / D converter
37 ... Microcomputer
38 ... Memory
39: Operation unit
40 ... Display section
41 ... Switch part
42 ... CCU
43 ... Printer I / F (interface)
44 ... Address setting section
45 ... AC power supply
46… Lighting
63 ... Lighting control device
VCC ... DC power supply line
GND: Reference potential point GND

Claims (7)

A light receiving means for receiving natural light or artificial light and generating an electric signal corresponding to the received light level; a sampling means for sampling the electric signal from the light receiving means at a predetermined time; and an electric signal sampled by the sampling means Quantization means for quantizing a level and converting it into illuminance level data; storage means for storing the illuminance level data; illuminance level data writing means for writing the illuminance level data in the storage means; and stored in the storage means An illuminance level recorder comprising: display means for sequentially reading and displaying the illuminance level data from the latest stored data ;
Threshold setting means for setting a threshold determined based on the output result of the illuminance level data from the display means of the illuminance level recorder;
Lighting equipment capable of dimming control;
When the current illuminance level received by the light receiving means is higher than the threshold set by the threshold setting means, the lighting device is turned off or dimming control is performed, and when it is lower than the threshold, the illumination is controlled. Means for controlling the operation of the lighting device to turn on the device;
An illumination control device comprising: Means for reading the date and time;
Means for determining the incident direction of sunlight based on the date and time;
Means for detecting the shade of the sun;
The illuminance level recorder or the illumination control device according to claim 1, wherein it is determined whether direct light is inserted when the sunlight is incident.
Means for judging the season from the date;
Means for daylight usage control;
Means for determining whether to perform daylight use control based on the detection result of the shade of the sun, the determination result of whether the direct light is inserted, and the determination result of the season;
Means for performing daylight use control for a certain period of time when it is determined to perform daylight use control;
A centralized monitoring control system characterized by comprising: Means for reading the date and time;
Means for determining the incident direction of sunlight based on the date and time;
Means for determining whether there is an obstacle that blocks sunlight in the incident direction of sunlight;
Means for detecting the shade of the sun;
The illuminance level recorder or the illumination control device according to claim 1, wherein it is determined whether direct light is inserted when the sunlight is incident.
Means for judging the season from the date;
Means for daylight usage control;
Daylight usage based on the determination result of whether there is an obstacle that blocks the sunlight, the detection result of the shade of the sun, the determination result of whether the direct light is inserted, and the determination result of the season Means for determining whether to perform control;
Means for performing daylight use control for a certain period of time when it is determined to perform daylight use control;
A centralized monitoring control system characterized by comprising: 4. The centralized monitoring and control system according to claim 2, wherein the daylight utilization control is performed, and at the same time, manual operation of the lighting device is disabled. The centralized monitoring control system according to claim 2, 3 or 4, wherein the detection of the shade of the sun is performed based on illuminance data obtained from a sunshine meter. The daylight usage control is
Daylight lighting in the window room;
Artificial lighting in the room by the window;
The centralized monitoring control system according to any one of claims 2 to 5, wherein each of the outputs of the optical sensor attached outside the window room is used. The centralized monitoring control system according to any one of claims 2 to 6, wherein the daylight utilization control is reconsidered every predetermined time to determine whether or not to continue the control.

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