JP5180926B2 - Lighting control system - Google Patents

Description

  The present invention relates to a lighting control system.

  Conventionally, as shown in FIG. 7, a plurality of monitoring terminals 7 and control terminals 4 are connected to the transmission unit 1 via a two-wire signal line Ls, and a switch S is connected to the monitoring terminal 7. When a monitoring input generated by the operation or the sensor detection signal is given, a relay (not shown) provided in the control terminal 4 is opened and closed so that the commercial power supply AC supplied to the lighting load 8 is controlled by the relay. A lighting control system is provided.

  When an address is set for each of the monitoring terminal 7 and the control terminal 4 and a monitoring input is given to the monitoring terminal 7, monitoring data corresponding to the monitoring input is sent from the monitoring terminal 7 to the transmission unit 1. When the transmission unit 1 receives the monitoring data, the transmission unit 1 transmits the control data corresponding to the monitoring data to the control terminal 4 in which the correspondence with the monitoring terminal 7 is set by the address, and the control terminal The lighting load 8 is controlled via the device 4.

  The transmission unit 1 sends a transmission signal Vs having a format as shown in FIGS. 8A and 8B to the signal line Ls. The transmission signal Vs includes a start pulse signal SY indicating the start of signal transmission, a mode data signal MD indicating a signal mode, and an address data signal for transmitting address data for calling the monitoring terminal 7 and the control terminal 4 separately. AD, control data signal CD for transmitting control data for controlling lighting load 8, checksum data signal CS for detecting transmission error, and return signal from monitoring terminal 7 and control terminal 4 are received. This is a double pole (± 24 V) time-division multiplexed signal consisting of a signal return period WT which is a time slot to be transmitted, and data is transmitted by pulse width modulation.

  In each monitoring terminal 7 and each control terminal 4, if the address data of the transmission signal Vs received via the signal line Ls matches the address data set in itself, the control data is transmitted from the transmission signal Vs. At the same time, the monitoring data is returned as a current mode signal (a signal transmitted by short-circuiting the signal line Ls via an appropriate low impedance) in synchronization with the signal return period WT of the transmission signal Vs.

  Further, the transmission unit 1 is provided with a constant polling means for constantly polling for continuously accessing the monitoring terminal 7 and the control terminal 4 by changing the address data included in the transmission signal Vs cyclically. . At the time of constant polling, the monitoring terminal 7 or the control terminal 4 that matches the address data included in the transmission signal Vs captures the control data included in the transmission signal Vs. On the other hand, when the transmission unit 1 receives the interrupt signal Vi (see FIG. 8C) generated by any of the monitoring terminals 7, the monitoring terminal 7 that generated the interrupt signal Vi is connected to the transmission unit 1. An interrupt polling means for accessing the monitoring terminal 7 after the detection and returning the monitoring data is also provided.

  That is, when the transmission unit 1 detects the interrupt signal Vi generated from any of the monitoring terminals 7 during the constant polling in synchronization with the start pulse signal SY of the transmission signal Vs, the transmission unit 1 is transmitted by the interrupt polling means. To transmit a transmission signal Vs in which the mode data signal MD is set to the interrupt polling mode. In the monitoring terminal 7 that has generated the interrupt signal Vi, when the upper bits of the address data included in the transmission signal Vs transmitted in the interrupt polling mode match the upper bits of its own address, the signal of the transmission signal Vs In synchronization with the return period WT, the lower bits of its own address are returned as return data.

  In this way, when the transmission unit 1 acquires the address of the monitoring terminal 7 that has generated the interrupt signal Vi, the transmission unit 1 returns monitoring data to the monitoring terminal 7 using the acquired address. The monitoring terminal 7 that has transmitted the requested transmission signal Vs and has issued the interrupt signal Vi returns the monitoring data corresponding to the monitoring input to the transmission unit 1 as return data. If the lower address is not returned from the monitoring terminal 7 that generated the interrupt signal Vi, the interrupt polling means of the transmission unit 1 changes the upper address and retransmits the interrupt polling mode transmission signal Vs. .

  When the transmission unit 1 receives the monitoring data from the monitoring terminal 7 that has issued the interrupt signal Vi, the transmission unit 1 controls the control terminal 4 that is associated in advance with the monitoring terminal 7 according to the address correspondence. Data is generated, a transmission signal Vs including this control data is sent to the signal line Ls, and the lighting load 8 is controlled via the control terminal 4.

  Here, the addresses (individual addresses) set individually for the monitoring terminal 7 and the control terminal 4 are the channels set in units of terminals, monitoring inputs (for example, switches and various sensors), and illumination. This is a set with a load number for identifying a circuit of the load 8, and in the current product, 64 channels can be set and four circuits can be set for each channel. That is, a channel is set for each monitoring terminal 7 and each control terminal 4, and up to four monitoring inputs can be input to each monitoring terminal 7. A maximum of four lighting loads 8 can be connected. Therefore, a total of 256 lighting loads 8 can be controlled. Here, the circuit of the monitoring input and the lighting load 8 means a set of the monitoring input and the lighting load 8 that are related by the correspondence relationship of the addresses, and the lighting load 8 that is controlled according to the generated monitoring input. Constitutes one circuit.

  The correspondence relationship between the monitoring input and the lighting load 8 as described above is set as related data in a memory (not shown) included in the transmission unit 1. That is, at the time of construction, after the address setting to each monitoring terminal 7 and each control terminal 4 is completed, the correspondence between the monitoring input and the lighting load 8 is set in the transmission unit 1 as related data. Thus, it becomes possible to control a desired lighting load 8 in association with the monitoring input given to each monitoring terminal 7.

  By the way, in the illumination control system as described above, a system that uses natural light from the outdoors and reduces the light output of the illumination load 8 when the outdoors is bright has been proposed. Yes. In such an illumination control system, as shown in FIG. 9, a terminal 2 with an illuminance sensor provided with an illuminance sensor is installed on the ceiling portion on the window 101 side in the ceiling 102 of the room 100 of the building, and the terminal with the illuminance sensor The device 2 detects the brightness (illuminance) of natural light collected through the window 101 by the illuminance sensor, and compares the brightness of the illuminance sensor detected with the preset illuminance level. And in the terminal device 2 with an illuminance sensor, when the illuminance detected by the illuminance sensor becomes brighter than a predetermined illuminance level, the monitoring data for turning off the corresponding illumination load 8 is returned to the transmission unit 1 through the above transmission processing. At the same time, when the detected illuminance of the illuminance sensor becomes darker than the predetermined illuminance level, the monitoring data for turning on the corresponding illumination load 8 is returned to the transmission unit 1 through the above transmission processing. In addition, since the illuminance change with time zones is large in the windows facing east and west, it is preferable that the terminal 2 with the illuminance sensor be installed with the illuminance sensor facing the window 101 on the north surface.

  In the above system, only the corresponding illumination load is turned on or off according to the brightness of the detected illuminance of the illuminance sensor and the predetermined illuminance level. However, in order to perform finer control, the terminal with the illuminance sensor A plurality of illuminance levels are set in 2, and the monitoring data to be returned to the transmission unit 1 is varied according to each illuminance level based on the result of comparing the illuminance detected by the illuminance sensor with the brightness of each illuminance level. Thus, an illumination control system that can control a plurality of illumination loads in different control states has been proposed in the past (see, for example, Patent Document 1).

  In the illumination control system disclosed in Patent Document 1, for example, two illuminance levels L1 and L2 (L1 <L2) are set in the terminal device 2 with the illuminance sensor as illuminance levels serving as a reference for changing the operation state of the illumination load. The address (group control address) of the monitoring data returned by the terminal device 2 with the illuminance sensor is made different for each illuminance level. That is, in the terminal device 2 with the illuminance sensor, when the illuminance detected by the illuminance sensor is brighter than the illuminance level L2, the monitoring data for turning off all of the plurality of illumination loads installed in the illumination area is transmitted through the above transmission process. Return to 1. Moreover, in the terminal device 2 with an illuminance sensor, when the illuminance detected by the illuminance sensor is darker than the illuminance level L2 and brighter than the illuminance level L1, monitoring data for thinning and lighting only a part of the illumination load is returned to the transmission unit 1. When the detected illuminance of the illuminance sensor is darker than the illuminance level L1, the monitoring data for lighting all the illumination loads is returned to the transmission unit 1 through the above transmission process. In this way, by setting a plurality of illuminance levels for the illuminance sensor-equipped terminal device 2 and changing the monitoring data to be returned according to each illuminance level, all lighting states for lighting all the plurality of illumination loads, The control state can be switched between a thinned-out lighting state in which only some of the lighting loads are turned on and a fully-off state in which all of the plurality of lighting loads are turned off, so that finer control can be performed. The group control address is an address set in association with group control in which a plurality of control terminals 4 are grouped and the control terminals 4 in the group are turned on or off at once. The above-mentioned Patent Document 1 also uses a pattern control address capable of controlling a plurality of control terminals 4 in individually set operation states as addresses returned as monitoring data for each illuminance level. It is disclosed.

JP 2004-119155 A

  In the illumination control system disclosed in Patent Document 1 described above, when the altitude of the sun in the south changes according to the season, the incident angle of sunlight that enters the room 100 through the window 101 changes accordingly. The amount of natural light incident on the illuminance sensor 2 also changes. That is, in the summer season, the solar mid-high altitude is higher than in the winter season, and the incident angle of the natural light that enters the room (the angle of the incident light with respect to the horizontal plane) increases, so that it enters the illuminance sensor of the terminal device 2 with the illuminance sensor. It is conceivable that the natural light is reduced and the illuminance detected by the illuminance sensor is darker than the actual illuminance. In this case, there is a possibility that the illuminance detected by the illuminance sensor becomes darker than the predetermined illuminance level even though the natural light inserted from the outside is sufficiently bright, and the terminal device 2 with the illuminance sensor needs the corresponding illumination load 8. There is a problem in that unnecessary power consumption occurs due to lighting with the above brightness.

  In order to prevent such unintended lighting load from being lit, the value of the illuminance level set in the terminal device 2 with the illuminance sensor may be reset according to the season. In the terminal body placed on the ceiling surface, the setting switch for setting the illuminance level is provided, so the work to set the illuminance level is a work at a high place, and it is necessary to set the illuminance level. There was a problem that it took time and effort.

  The present invention has been made in view of the above problems, and its object is to easily set the illuminance level in an illumination control system that generates monitoring data according to the brightness of the detected illuminance and the illuminance level. It is to provide a lighting control system that can be changed.

In order to achieve the above object, a first aspect of the present invention provides a control terminal for controlling a lighting state of a corresponding illumination load, an illuminance sensor for detecting illuminance of natural light incident on an illumination area by the illumination load, and illuminance Illuminance monitoring terminal with a setting function for generating monitoring data for controlling the corresponding illumination load according to the brightness of the sensor's detected illuminance and a plurality of illuminance levels, a control terminal, and an illuminance monitoring terminal with a setting function vessel is a transmission unit connected via a signal line, the transmission unit is adapted to identify each terminal device using the individual address assigned to each terminal device, between a respective terminal unit time division multiplex transmission method and Professor receive the transmission signals by, when acquiring the monitoring data from the setting function illuminance monitor terminal device, the corresponding lighting load in advance by the address of the correspondence between the control terminal unit that has been set An illuminance monitoring terminal with a setting function, a transmission processing unit that transmits and receives a transmission signal via a signal line, an illuminance level storage unit that stores a plurality of illuminance levels of one set, and an illuminance level Selection operation unit for performing an operation of selecting a desired set of illuminance levels from a plurality of sets of illuminance levels stored in the storage unit, and detection of a plurality of illuminance levels and illuminance sensors selected by the selection operation unit A control processing unit that compares the brightness with the illuminance and generates monitoring data according to the brightness with each illuminance level, the illuminance monitoring terminal with a setting function, It is characterized by being provided separately from the transmission unit installed in the electrical panel .

According to a second aspect of the present invention, in the first aspect of the invention, the illuminance monitoring terminal with a setting function stores a plurality of pieces of monitoring data in which a combination of lighting loads to be lit is different among a plurality of corresponding lighting loads. The control processing unit equalizes the number of controls per predetermined time for each illumination load according to the brightness of the detected illuminance of the illuminance sensor and the plurality of illuminance levels stored in the illuminance level storage unit. Thus, the selected monitoring data is output from the monitoring data storage unit.

  According to the first aspect of the present invention, an operation for selecting a desired set of illuminance levels from a plurality of sets of illuminance levels stored in the illuminance level storage unit is performed using the selection operation unit of the illuminance monitoring terminal with setting function. Since the control processing unit generates monitoring data corresponding to the brightness of the selected set of the plurality of illuminance levels and the detected illuminance of the illuminance level, it is easy to set the illuminance level used for comparison with the detected illuminance. Can be changed by operation. For example, if the sun's altitude is changed according to the season, the incident angle of sunlight changes accordingly, and the amount of natural light incident on the illuminance sensor changes, but the setting operation part of the illuminance monitoring terminal with setting function By changing the value of the illuminance level according to the season using, it is possible to realize an illumination control system capable of ensuring a desired brightness while saving power.

  According to the second aspect of the present invention, the control processing unit monitors from the monitoring data storage unit so that the number of times of control per predetermined time of each lighting load is equal even when a part of the plurality of lighting loads is thinned out. Since data is selected and output, the lighting load replacement period can be made substantially the same by equalizing the number of times the lighting load is controlled, and the brightness of the lighting load The variation in thickness can also be reduced.

(A) is a block diagram of a terminal with an illuminance sensor used in the illumination control system of the present embodiment, and (b) is a block diagram of an illuminance monitoring terminal with a setting function. It is a system block diagram same as the above. The illumination monitoring terminal with a setting function used above is shown, (a) is a front view, (b) is a side view. The terminal with an illuminance sensor used in the above is shown, (a) is an external perspective view seen from the lower side, and (b) is a bottom view with the decorative cover removed. The operations described above will be described, with (a) showing the illuminance level of the illuminance sensor and (b) and (c) showing the relationship between the operating states of the illumination loads of the groups G1 and G2. The operations described above will be described. (A) and (c) schematically show the illuminance level of the illuminance sensor, and (b) and (d) schematically show the operating state of the illumination load. It is a system block diagram of the conventional illumination control system. (A)-(c) is explanatory drawing of the transmission signal used for the same as the above. It is explanatory drawing explaining the construction state of an illumination control system.

  An embodiment of a lighting control system according to the present invention will be described with reference to the drawings.

  FIG. 2 is a schematic system configuration diagram of a lighting control system. This system turns on / off remote control relays 5a to 5d that turn on / off power to a corresponding lighting load (not shown). The control terminal 4 for turning on or off the corresponding illumination load, and an illuminance sensor for detecting the brightness (illuminance) of natural light incident on the illumination area of the illumination load from the outside, and monitoring the illuminance detected by the illuminance sensor Terminal 2 with illuminance sensor that returns to the transmission unit 1 and a setting function of the illuminance level, and the illuminance detected by the illuminance sensor of the terminal 2 with illuminance sensor is given as a monitoring input, and the detected illuminance is preset. Illuminance monitoring terminal with setting function (hereinafter abbreviated as illuminance monitoring terminal) that generates monitoring data for controlling the corresponding lighting load according to the brightness of a plurality of illuminance levels .) 3 and is connected to the transmission unit 1 via the signal line Ls of the 2-wire. Individual addresses are set for the terminals 2, 3, and 4, and the transmission unit 1 uses the individual addresses assigned to the terminals 2, 3, and 4, respectively. 4 and a transmission signal Vs is exchanged between the terminals 2, 3 and 4 by time division multiplex transmission. Here, since signal transmission between the transmission unit 1 and each of the terminals 2, 3, and 4 is the same as that of the illumination control system described in the conventional example, detailed description thereof is omitted. 2 is a remote control transformer that supplies power necessary for driving the remote control relays 5a to 5d. The transmission unit 1, the control terminal 4, the remote control relays 5a to 5d, and the remote control transformer 6 are Arranged in the distribution board 60. In FIG. 2, only one control terminal 4 and one terminal device 2 with an illuminance sensor are connected, but a plurality of terminals 2 and 4 may be provided.

  FIG. 1A is a block diagram of a terminal device 2 with an illuminance sensor. The terminal device 2 with an illuminance sensor includes an illuminance sensor 21 that detects the illuminance of natural light incident on an illumination area of a corresponding illumination load, and a signal line Ls. A transmission processing unit 22 that transmits and receives transmission signals via the network, an address setting unit 23 that sets its own address, and a control processing unit 20 that controls the entire terminal. Here, the control processing unit 20 captures the detected illuminance from the illuminance sensor 21 at a constant sampling period, and returns the detected illuminance captured from the illuminance sensor 21 from the transmission processing unit 22 to the transmission unit 1 as monitoring data.

  4A is an external perspective view of the terminal device 2 with an illuminance sensor as viewed from below, and FIG. 4B is a bottom view showing a state in which the decorative cover of the terminal device 2 with an illumination sensor is removed. The terminal device 2 with an illuminance sensor is used by being attached to a ceiling, and the body 40 of the terminal device 2 with an illuminance sensor includes a cylindrical body 41 that houses the circuit unit of FIG. As shown in FIG. 4B, an outer casing 42 having a circular outer peripheral shape is extended around one surface of the body 41 (lower surface when attached to the ceiling), and the signal line Ls is provided on the other surface (upper surface). Is connected to a terminal block (not shown). A pair of mounting holes 43 into which box screws to be screwed into the switch box can be inserted are formed on the outer periphery of the outer casing 42, and mounting brackets 44 used when mounting to the ceiling without using the box screws are applied. A holding hole 45 is formed. The mounting bracket 44 has a column 44a that is detachably fixed to the upper surface side of the outer casing 42 at the periphery of the holding hole 45, and a clip plate 44c that is screwed to a tightening screw 44b provided on the column 44a It is comprised so that it may move up and down along. That is, the clamping plate 44c is moved up and down by the rotation of the tightening screw 24b. This type of mounting bracket 44 is well known, and fixes the body 40 to the ceiling by clamping the peripheral portion of the mounting hole drilled in the ceiling material between the outer casing 42 and the sandwiching plate 44c. I can do it.

  By the way, a dome-shaped movable body 46 is exposed at the center of the lower surface of the container body 40 (the front surface in FIG. 4B). The movable body 46 accommodates the illuminance sensor 21 therein and is attached to the container body 40 so as to be swingable. That is, the movable body 46 is attached to the body 40 so that the front direction of the illuminance sensor 21 can be inclined by 45 degrees or more with respect to the lower surface of the body 40, and the front direction of the illuminance sensor 21 is set to the body 40. It is possible to direct in the whole circumferential direction in the circumferential direction of the lower surface of the. On the lower surface of the container body 40, rotary switches 24 and 25 for setting the address of the own apparatus are arranged around the movable body 46. The address of the terminal device 2 with the illuminance sensor can be set in the range of 0 to 63 ch, the rotary switch 24 is the tenth place (0 to 6) of the address, and the rotary switch 25 is the first place (0 to 9) of the address. These address switches 25 and 25 form an address setting unit 25. Note that the lower surface side of the outer casing 42 is covered with a decorative cover 47 that is detachably attached to the outer casing 42, and the movable body 46 incorporating the illuminance sensor 21 is lowered from a central hole 47 a of the decorative cover 47. It is designed to be exposed to the side.

  As shown in FIG. 9, the terminal device 2 with the illuminance sensor is installed at a site on the window 101 side in the ceiling 102 of the room 100 of the building, and the illuminance sensor 21 detects the illuminance of natural light incident from the window 101. The detected illuminance of the illuminance sensor 21 is returned to the transmission unit 1 as monitoring data. In addition, since the terminal device 2 with an illuminance sensor may be used by being installed on the eaves ceiling, it is preferable to provide waterproof performance equivalent to, for example, IPX3.

  Next, the illuminance monitoring terminal device 3 will be described. FIG. 1B is a block diagram of the illuminance monitoring terminal 3, and a transmission processing unit 31 that transmits and receives a transmission signal through the signal line Ls, a liquid crystal display (LCD) 32, and a display control that controls the display of the LCD 32. A unit 33, an operation input unit 34 that accepts input from an operation switch for setting an illuminance level, and a storage unit 35 (illuminance level storage unit) that stores a plurality of sets of illuminance level setting data. And a control processing unit 30 that performs overall control of the illuminance monitoring terminal device 3.

  3 (a) is a front view of the illuminance monitoring terminal 3, FIG. 3 (b) is a side view of the illuminance monitoring terminal 3, and the body 50 of the illuminance monitoring terminal 3 is substantially box-shaped. The switch 50 is formed in a size that can be accommodated in the switch box, and the above-described circuit portion of FIG. In addition, an LCD 32 is disposed on the upper side of the front surface of the vessel 50, and a recess 51 is provided on the lower side. A plurality of operation switches 36 a to 36 f are arranged on the front surface of the recess 51, and a door 52 that covers the recess 51 so as to be freely opened and closed is attached to the container body 50. Further, a screw terminal block 53 to which the signal line Ls is connected is provided on the rear surface of the container body 50.

  Next, the operation of this illumination control system will be described. First, the illumination control operation by the illuminance monitoring terminal device 3 will be described with reference to FIG. Here, a plurality of sets of illuminance levels are set in the storage unit 35 of the illuminance monitoring terminal device 3, and two illuminances having a median value of Th1, Th2 (Th1 <Th2) among the plurality of sets of illuminance levels. The description will be made assuming that the levels L1 and L2 (L1 <L2) are selected. In the illuminance monitoring terminal 3, group numbers G1 and G2 are set as monitoring data (control addresses) corresponding to the illuminance levels L1 and L2. The illuminance levels L1 and L2 are set as d% ranges W1 and W2 above and below the median values Th1 and Th2, respectively (see FIG. 5).

  By the way, in this illumination control system, since the illuminance monitoring terminal 3 that is a monitoring terminal and the control terminal 4 are associated by an address, the control terminal is assigned to one address of the illuminance monitoring terminal 3. Instead of associating one individual address of the device 4 (lighting load), it is possible to associate a plurality of addresses. As described above, as a method of associating a plurality of addresses on the control side with one address of the monitoring terminal, pattern control that can individually vary the operation of a plurality of lighting loads to be controlled, and control There is a group control in which a plurality of lighting loads as targets are collectively operated in the same operation state. Each of the pattern control and the group control is associated with an address (hereinafter, the pattern control address is referred to as a “pattern number” and the group control address is referred to as a “group number”). When the monitoring input of the illuminance monitoring terminal 3 is associated with the pattern number, when the detected illuminance becomes brighter than the illuminance level or darker than the illuminance level, a plurality of illumination loads are set in the pattern specified by the pattern number. Operations can be controlled all at once. Further, if the monitoring input of the illuminance monitoring terminal 3 is associated with the group number, when the detected illuminance becomes brighter than the illuminance level or darker than the illuminance level, a plurality of illumination loads bundled with the group number are displayed. The same operation can be controlled. The association between the pattern number or group number and the address of the control terminal 4 controlled by the pattern number and group number is set by relational data stored in a memory (not shown) provided in the transmission unit 1. It is done.

  The control processing unit 20 of the terminal device 2 with the illuminance sensor captures the illuminance detected by the illuminance sensor 21 at a predetermined sampling period, and performs the transmission processing described above with the transmission unit 1, thereby obtaining the detected illuminance of the illuminance sensor 21. It returns to the transmission unit 1 as monitoring data. At this time, the transmission unit 1 transmits the detected illuminance of the illuminance sensor 21 acquired from the illuminance sensor-equipped terminal device 2 to the illuminance monitoring terminal device 3 in which the address correspondence is set in advance.

  Here, the illuminance of the natural light detected by the illuminance sensor 21 changes as shown in FIG. 5A from sunrise to sunset. In the control processing unit 31 of the illuminance monitoring terminal 3, the transmission processing unit 31 The brightness of the received detected illuminance and the illuminance levels L1, L2 are compared, and after the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L1, until it becomes brighter than the upper limit value of the illuminance level L1, Monitoring data for lighting the illumination loads of the groups G1 and G2 is generated and transmitted to the transmission unit 1, and a plurality of illumination loads associated with the group G1 and a plurality of illuminations associated with the group G2 Both loads are lit.

  When natural light increases and the detected illuminance of the illuminance sensor 21 becomes brighter than the upper limit of the illuminance level L1 at time t1, the control processing unit 31 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L1. The monitoring data for turning off the lighting loads of the group G2 at once is generated based on the above. At this time, in the transmission unit 1, based on the monitoring data acquired from the illuminance monitoring terminal 3, the lighting load of the group G2 is turned off collectively by the corresponding control terminal 4, and only the lighting load of the group G1 is turned off. Lights thinned out.

  Thereafter, when the natural light further increases and the detected illuminance of the illuminance sensor 21 becomes brighter than the upper limit of the illuminance level L2 at time t2, the control processing unit 31 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L2. Based on the result, monitoring data for turning off the lighting loads of the group G1 at once is generated. At this time, in the transmission unit 1, based on the monitoring data acquired from the illuminance monitoring terminal 3, the lighting load of the group G1 is turned off collectively by the corresponding control terminal 4, and the lighting loads of the groups G1 and G2 That is, all the lighting loads to be controlled are turned off.

  Next, when natural light decreases and the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L2 at time t3, the control processing unit 31 of the illuminance monitoring terminal device 3 compares the detected illuminance with the illuminance level L2. Based on the result, monitoring data for turning on the lighting loads of the group G1 collectively is generated. At this time, in the transmission unit 1, based on the monitoring data acquired from the illuminance monitoring terminal 3, the lighting load of the group G1 is turned on collectively by the corresponding control terminal 4, and only the lighting load of the group G1 is turned on. Thinned out.

  Thereafter, when the natural light further decreases and the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L1 at time t4, the control processing unit 31 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L1. Based on the result, monitoring data for turning on the lighting loads of the group G2 collectively is generated. At this time, in the transmission unit 1, based on the monitoring data acquired from the illuminance monitoring terminal 3, the lighting load of the group G2 is turned on collectively by the corresponding control terminal 4, and the lighting loads of the groups G1 and G2 That is, all the lighting loads to be controlled are turned on.

  When the natural light is brighter than the illuminance level L2 by performing the control operation as described above, the illuminance monitoring terminal 3 turns off all of the plurality of illumination loads and the natural light is darker than the illuminance level L1. Since all of the plurality of lighting loads are turned on, and when the natural light is brighter than the illuminance level L1 and darker than the illuminance level L2, only a part of the lighting loads (group G1) is lit out. The lighting area can be illuminated brightly while saving power. In this embodiment, since the illumination levels L1 and L2 have a predetermined width (hysteresis), it is possible to prevent the operation of the illumination load from fluctuating near the boundary.

  By the way, when the south-middle altitude of the sun changes according to the season, the incident angle of natural light entering the room 100 through the window 101 changes, so even if there is no change in the brightness of natural light entering the room 100 When the incident angle of light changes, the detected illuminance of the illuminance sensor 21 varies, and an error may occur between the detected illuminance by the illuminance sensor 21 and the actual illuminance. Therefore, when the illuminance levels L1 and L2 are constant regardless of environmental changes such as the season, the actual illuminance when the illumination load is turned on or off may vary depending on the illuminance detected by the illuminance sensor 21. In order to eliminate such variations in operation, it is necessary to change the illuminance level set in the illuminance monitoring terminal 3 according to environmental changes such as the season.

  Therefore, in the present embodiment, the setting of the illuminance level can be switched in the illuminance monitoring terminal 3, and the setting operation of the illuminance level by the illuminance monitoring terminal 3 will be described below. As shown in FIG. 3A, a plurality of operation switches 36 a to 36 f are arranged on the front surface of the illuminance monitoring terminal 3, and the operation switch 36 a is a mode selection switch for switching the operation mode of the illuminance monitoring terminal 3. The operation switch 36b is a program changeover switch (selection operation unit) for selecting a desired set of illuminance levels from a plurality of sets of illuminance levels set in the illuminance monitoring terminal 3. The operation switches 36c and 36d are cursor switches for increasing or decreasing numerical values such as program numbers and illuminance setting values when setting the illuminance level, for example, the operation switch 36e is a switch for performing a cancel operation, and the operation switch 36f is This is a switch for performing a setting operation.

  As the operation mode of the illuminance monitoring terminal 3, six modes including a normal mode, an illuminance setting mode, a sensor address setting mode, a control address setting mode, and an extended address setting mode are prepared, and the mode selection switch 36a is pressed. Each time, the control processing unit 30 cyclically switches the operation mode in the order of normal mode → illuminance setting mode → sensor address setting mode → control address setting mode → extended address setting mode → normal mode.

  In the normal mode, the control processing unit 30 controls the display of the LCD 32 by the display control unit 33, and corresponds to the program number indicating the set of illuminance levels currently set in the terminal device 2 with illuminance sensor and the program number. The median value of the illuminance levels L1 and L2 and the current detected illuminance by the illuminance sensor 21 of the terminal device 2 with illuminance sensor are displayed on the LCD 32.

  The illuminance setting mode is a mode for setting the illuminance level in the storage unit 35 of the illuminance monitoring terminal 3. When the cursor switches 36c and 36d are pressed in the state in which the mode selection switch 36a is used to switch to the illuminance setting mode, the control processing unit 30 displays on the LCD 32 according to the operation input from the cursor switches 36c and 36d. When the displayed program numbers (PRG numbers) are sequentially switched from 1 to 6, and the setting switch 36f is pressed while the desired program number is displayed on the LCD 32, the control processing unit 30 sets the setting target. And the median of the illuminance levels L1 and L2 corresponding to the program number are set in order. That is, the control processing unit 30 increases or decreases the value (median value) of the illuminance level L1 or L2 displayed on the LCD 32 according to the operation of the cursor switches 36c and 36d, and the setting switch 36f is operated. Then, the value of the illuminance level L1 or L2 is determined, and the median value of the illuminance levels L1 and L2 corresponding to the setting target program number is registered in the storage unit 35.

  The sensor address setting mode is a mode for setting the address of the corresponding terminal 2 with illuminance sensor in the illuminance monitoring terminal 3. When the cursor switches 36c and 36d are pressed in the state where the mode selection switch 36a is used to switch to the sensor address setting mode, the control processing unit 30 causes the LCD 32 to respond to an operation input from the cursor switches 36c and 36d. When the setting switch 36f is pressed while the desired address is displayed on the LCD 32, the sensor address at this time is changed to the sensor address displayed on the LCD 32 (that is, the address of the terminal 2 with the illuminance sensor). It is stored in the storage unit 35 as the address of the corresponding terminal 2 with illuminance sensor. When the address is set, the control processing unit 30 displays the initial value (for example, 5 minutes) of the control delay time on the LCD 32, and the control delay displayed on the LCD 32 according to the operation input from the cursor switches 36c and 36d. Increase or decrease the time. When the user presses the setting switch 36f with the control delay time changed to a desired value, the control processing unit 30 stores the control delay time at this time in association with the sensor address in the storage unit 35. The

  The control address setting mode is a mode for setting control addresses corresponding to the two illuminance levels L1 and L2. When the mode selection switch 36a is used to switch to the sensor address setting mode, the control processing unit 30 first starts setting the control address corresponding to the illuminance level L1, and the control type according to the pressing operation of the cursor switches 36c and 36d. Is switched to any of individual control, pattern control, group control, and dimming control, and when the setting switch 36f is pressed, the control type corresponding to the illuminance level L1 is determined. Thereafter, in the control processing unit 30, an address number corresponding to the selected control type (individual, pattern, group, dimming) according to the operation of the cursor switches 36c and 36d (in the case of individual control, the individual address to be controlled) If the display of the pattern number in the case of pattern control or the group number in the case of group control) is switched and the setting switch 36f is pressed while the desired address number is displayed, the address number corresponding to the control type is displayed. It is determined and registered in the storage unit 35. When the control address corresponding to the illuminance level L1 is set in this manner, the control address corresponding to the illuminance level L2 is set in the storage unit 35 by performing the same setting operation as described above.

  Further, the extended address setting mode is a mode for setting a control address used for changing the range of the lighting load to be thinned and lit when performing thinning lighting, and the operation mode of the control processing unit 30 using the mode selection switch 36a. Is switched to the sensor address setting mode, and the cursor switch 36c, 36d is used to input the control address for switching the thinning-out lighting range and then press the setting switch 36f, the control processing unit 30 stores the storage unit. 35 stores the extended address.

  After the illuminance level, sensor address, control address, and extended address are set in each setting mode described above, the operation of the illuminance monitoring terminal 3 is controlled when the operation mode is switched to the normal mode by pressing the mode switch. The processing unit 30 includes a program number (PRG number) indicating a set of currently selected illuminance levels, a median value of the illuminance levels L1 and L2 corresponding to the program number (set illuminances 1 and 2), and corresponding illuminance. The detected illuminance of the illuminance sensor 21 sent as monitoring data from the sensor-equipped terminal device 2 is displayed on the LCD 32.

  When the user presses the program changeover switch 36b while the illuminance monitoring terminal 3 is operating in the normal mode, the control processing unit 30 changes the program number from 1 to 6 according to the changeover operation of the program changeover switch 36b. In addition to switching to the click, the setting value of the illuminance level of each program (the median value of the illuminance levels L1 and L2) is read from the storage unit 35, and the display control unit 33 displays the switched program number on the LCD 32 and Display the set value. When the switching operation is completed, the control processing unit 30 compares the brightness of the set illuminance levels L1 and L2 corresponding to the newly selected program number with the detected illuminance, and compares the brightness with the illuminance levels L1 and L2. Generate corresponding monitoring data.

  Here, if the south-middle altitude of the sun changes according to the season and the angle at which sunlight enters the room changes accordingly, the illuminance of the terminal 2 with the illuminance sensor according to the change in the incident angle of sunlight. Since the amount of light incident on the sensor 21 changes, an error may occur between the actual brightness and the detected illuminance of the illuminance sensor 21. Therefore, when the illuminance levels L1 and L2 used for comparison with the detected illuminance are constant regardless of the season, an error occurs between the actual brightness and the detected illuminance of the illuminance sensor 21, so that the illumination load to be controlled is turned on or When the lights are turned off, the brightness in the room is different from the intended brightness, and there is a possibility that the power saving effect cannot be obtained sufficiently.

  Therefore, in the illuminance monitoring terminal device 3 of the present embodiment, a plurality of programs each consisting of a set of illuminance levels are stored in the storage unit 35 (in the present embodiment, one program with two sets of illuminance levels L1 and L2). (Up to a total of 6 programs) can be stored. For example, a program corresponding to a season or a change corresponding to a change in use environment is created and registered in the storage unit 35 in advance, and the program number is changed by operating the program changeover switch 36b to change the program number. Since the illuminance levels L1 and L2 are used for comparison with the detected illuminance, the illuminance monitoring terminal 3 controls lighting / extinguishing of the corresponding illumination load using the illuminance level according to the change of the usage environment such as the season. And the lighting load can be operated in a desired operating state.

  Further, even when it is desired to change the values of the illuminance levels L1 and L2 used for the comparison of the brightness with the detected illuminance according to changes in the usage environment such as the season, the program changeover switch 36b of the illuminance monitoring terminal 3 is pressed. Thus, the illuminance levels L1 and L2 registered in advance in the storage unit 35 can be set to the illuminance levels used for the determination of light and darkness. Therefore, the work of changing the values of the illuminance levels L1 and L2 is easily performed. be able to.

  Further, when the illuminance monitoring terminal 3 outputs the extended address set in the extended address setting mode as monitoring data, the illuminance monitoring terminal 3 is lit thinly when the lighting load is thinned according to the illuminance detected by the illuminance sensor 21. The range of the illumination load can be switched every time the control operation is performed. It should be noted that the detected illuminance of the illuminance sensor 21 is darker than the illuminance level L1 and the illumination load is all lit, then the detected illuminance is brighter than the illuminance level L1 and the illumination load is thinned, and the detected illuminance is illuminance After the light intensity becomes brighter than the level L2 and all the illumination loads are extinguished, and then the detected illuminance becomes darker than the illuminance level L2 and the lighting load is turned on in turn, the detected illuminance becomes lower than the illuminance level L1. The control operation for one time is performed until the lighting load returns to a state in which all the illumination loads are turned on. Usually, the control operation for one time is performed once per day.

  Here, the operation in the case where the control address is switched using the extended address in the illuminance monitoring terminal device 3 will be described with reference to FIG. 6A and 6B are explanatory diagrams for explaining the (2n-1) th operation, and FIGS. 6C and 6D are explanatory diagrams for explaining the (2n) th operation (however, n is an integer of 1 or more.

  First, the (2n-1) -th operation will be described. In the (2n-1) th control operation, pattern number P1 (illumination loads 8b and 8d are turned on and illumination loads 8a and 8d are turned off) and illumination level L1 is used as a control address when the brightness becomes brighter than illumination level L1. Pattern number P2 (all lighting loads 8a to 8d are turned on) is set as a control address when it becomes darker than pattern number P5 (lighting loads 8a to 8a) as a control address when it becomes brighter than illuminance level L2. 8d are all turned off), and pattern number P6 (lighting loads 8b and 8d are turned on and lighting loads 8a and 8c are turned off) is set as a control address when the brightness becomes darker than illuminance level L2.

  The control processing unit 30 of the illuminance monitoring terminal 3 constantly compares the detected illuminance of the illuminance sensor 21 transmitted from the transmission unit 1 with the illuminance levels L1 and L2, and the detected illuminance in the morning is the illuminance level L1. In a time zone darker than the lower limit value, a pattern number P2 is generated as monitoring data, and all the lighting loads 8a to 8d are turned on.

  When natural light increases and the detected illuminance of the illuminance sensor 21 becomes brighter than the upper limit value of the illuminance level L1 at time t1, the control processing unit 30 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L1. Based on this, the pattern number P1 is generated as the monitoring data, the lighting loads 8b and 8d are turned on, and the lighting loads 8a and 8c are turned off, so that only the lighting loads 8b and 8d are lit thinly (see FIG. 6B). .

  Thereafter, when the natural light further increases and the detected illuminance of the illuminance sensor 21 becomes brighter than the upper limit value of the illuminance level L2 at time t2, the control processing unit 30 of the illuminance monitoring terminal device 3 compares the detected illuminance with the illuminance level L2. Based on the result, the pattern number P5 is generated as the monitoring data, and all the lighting loads 8a to 8d are turned off.

  Next, when natural light decreases and the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L2 at time t3, the control processing unit 30 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L2. Based on the result, the pattern number P6 is generated as monitoring data, the lighting loads 8b and 8d are turned on, and the lighting loads 8a and 8c are turned off, so that only the lighting loads 8b and 8d are turned on.

  Thereafter, when the natural light further decreases and the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L1 at time t4, the control processing unit 30 of the illuminance monitoring terminal 3 sets the detected illuminance and the illuminance level L1. Based on the comparison result, the pattern number P2 is generated as the monitoring data, and the lighting loads 8a to 8d are all turned on.

  When the control processing unit 30 of the illuminance monitoring terminal device 3 finishes the (2n-1) th control operation, the extended address is read from the storage unit 35, and the control addresses corresponding to the illuminance levels L1 and L2 are set as the extended address. As a control address when the detected illuminance becomes brighter than the illuminance level L1, the pattern number P3 (illumination loads 8a and 8c are turned on and the illumination loads 8b and 8d are turned off) becomes darker than the illuminance level L1. The pattern number P4 (all lighting loads 8a to 8d are turned on) is set as the control address in the case of the light source, and the pattern number P7 (all lighting loads 8a to 8d is turned off) as the control address when the brightness becomes brighter than the illuminance level L2. ), Pattern number P8 (illumination loads 8a and 8c are turned on and illuminated) as a control address when it becomes darker than the illumination level L2. Load 8b, turned off 8d) is set.

  Here, the (2n) -th control motion will be described with reference to FIGS. The control processing unit 30 of the illuminance monitoring terminal 3 constantly compares the detected illuminance of the illuminance sensor 21 transmitted from the transmission unit 1 with the illuminance levels L1 and L2, and the detected illuminance in the morning is the illuminance level L1. In a time zone darker than the lower limit value, a pattern number P4 is generated as monitoring data, and all the illumination loads 8a to 8d are turned on.

  When natural light increases and the detected illuminance of the illuminance sensor 21 becomes brighter than the upper limit value of the illuminance level L1 at time t5, the control processing unit 30 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L1. Based on this, the pattern number P3 is generated as the monitoring data, the lighting loads 8a and 8c are turned on, and the lighting loads 8b and 8d are turned off, so that only the lighting loads 8a and 8d are turned on and off (FIG. 6D). reference).

  After that, when the natural light further increases and the detected illuminance of the illuminance sensor 21 becomes brighter than the upper limit value of the illuminance level L2 at time t6, the control processing unit 30 of the illuminance monitoring terminal 3 compares the detected illuminance with the illuminance level L2. Based on the result, pattern number P7 is generated as monitoring data, and all the lighting loads 8a to 8d are turned off.

  Next, when the natural light decreases and the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L2 at time t7, the control processing unit 30 of the illuminance monitoring terminal device 3 compares the detected illuminance with the illuminance level L2. Based on the result, the pattern number P8 is generated as monitoring data, the lighting loads 8a and 8c are turned on, and the lighting loads 8b and 8d are turned off, so that only the lighting loads 8a and 8c are lit thinly.

  Thereafter, when the natural light further decreases and the detected illuminance of the illuminance sensor 21 becomes darker than the lower limit value of the illuminance level L1 at time t8, the control processing unit 30 of the illuminance monitoring terminal device 3 compares the detected illuminance with the illuminance level L1. Based on the result, pattern number P4 is generated as monitoring data, and all of the illumination loads 8a to 8d are turned on.

  When the control processing unit 30 of the illuminance monitoring terminal 3 finishes the (2n) th control operation, the control address corresponding to the illuminance levels L1 and L2 is returned from the extended address to the original control address, and the illuminance level L1 P1 and P2 are generated as control addresses corresponding to, and P5 and P6 are generated as control addresses corresponding to the illuminance level L2.

  As described above, the control processing unit 30 of the illuminance monitoring terminal device 3 changes the monitoring data (control address) generated corresponding to each illuminance level every time a series of control operations are performed. Since the range of the lighting load to be thinned is switched to the lighting loads 8a and 8c or the lighting loads 8b and 8d, the number of times of control per predetermined time is equalized between the lighting loads 8a and 8c and the lighting loads 8b and 8d. In addition, by equalizing the number of times of control of the plurality of lighting loads 8a to 8d, it is possible to equalize the replacement time of the lighting loads 8a to 8d and reduce variations in brightness of the lighting loads 8a to 8d. it can.

  In this embodiment, the four lighting loads 8a to 8d are divided into a group of lighting loads 8a and 8c and a group of lighting loads 8b and 8d, and a group of lighting loads 8a and 8c and a lighting load 8b, Although the number of controls per predetermined time of each lighting load is made uniform by thinning and lighting the 8d group alternately, the combination of thinning lighting is not intended to limit the combination to the above combination, Thinning lighting may be performed in any combination as long as the number of times of control of the lighting load per predetermined time can be made equal.

  Moreover, in this embodiment, the terminal device 2 with the illuminance sensor provided with the illuminance sensor 21, the setting function of the illuminance level and the extended address, and the control function for generating the monitoring data according to the brightness of the detected illuminance and the illuminance level. Although the illuminance monitoring terminal 3 provided is provided separately, the illuminance monitoring terminal 3 may be provided with an illuminance sensor 21, and the illuminance monitoring terminal 3 only has an illuminance level and extension address setting function. The illuminance level and the extended address set by the illuminance monitoring terminal device 3 with the setting function are stored in the terminal device 2 with the illuminance sensor through the transmission unit 1, and the brightness and darkness of the detected illuminance and the illuminance level of the illuminance sensor 21 are stored. The terminal device 2 with an illuminance sensor may be provided with a control function for generating monitoring data in response to the above.

  Furthermore, the illuminance monitoring terminal device 3 with a setting function has only an illuminance level and extended address setting function, and the illuminance level and the extended address set by the illuminance monitoring terminal device 3 with the setting function are stored in the transmission unit 1. At the same time, the transmission unit 1 may be provided with a control function for generating monitoring data in accordance with the brightness of the detected illuminance and the illuminance level of the terminal device 2 with the illuminance sensor.

DESCRIPTION OF SYMBOLS 1 Transmission unit 2 Terminal with illuminance sensor 3 Illuminance monitoring terminal with setting function 4 Control terminal 8 Lighting load 20 Control processing unit 21 Illuminance sensor 22 Transmission processing unit 23 Address setting unit 30 Control processing unit 31 Transmission processing unit 34 Operation Input unit 35 storage unit (illuminance level storage unit)
36a-36f Operation switch (selection operation part)
Ls signal line

Claims (2)

A control terminal that controls the lighting state of the corresponding illumination load, an illuminance sensor that detects the illuminance of natural light incident on the illumination area by the illumination load, and the brightness of the illuminance detected by the illuminance sensor and a plurality of illuminance levels And an illuminance monitoring terminal with a setting function for generating monitoring data for controlling the corresponding illumination load according to the control terminal, and the control terminal and the illuminance monitoring terminal with the setting function are connected via a signal line A transmission unit,
The transmission unit identifies each terminal using an individual address assigned to each terminal, and transmits / receives a transmission signal to / from each terminal using a time division multiplex transmission method, When acquiring the monitoring data from the setting function illuminance monitor terminal device, and then controls the corresponding said lighting load in advance by the address of the correspondence between the control terminal device which is set,
The illuminance monitoring terminal with setting function includes a transmission processing unit that transmits and receives a transmission signal via the signal line, an illuminance level storage unit that stores a plurality of sets of illuminance levels, and the illuminance level storage unit A selection operation unit for performing an operation of selecting a desired set of illuminance levels from a plurality of sets of illuminance levels stored in a plurality of illuminance levels, and detection of the plurality of illuminance levels selected by the selection operation unit and the illuminance sensor A control processing unit that compares the brightness with the illuminance and generates monitoring data according to the brightness with each illuminance level,
The illumination control system, wherein the illuminance monitoring terminal with a setting function is provided separately from the illuminance sensor installed on a ceiling and the transmission unit installed in a distribution board.   The illuminance monitoring terminal with a setting function includes a monitoring data storage unit that stores a plurality of monitoring data in which a combination of the lighting loads to be turned on among a plurality of the corresponding lighting loads is turned on, and the control processing unit includes: The monitoring data so that the number of times of control per predetermined time of each illumination load is equal according to the brightness of the detected illuminance of the illuminance sensor and the plurality of illuminance levels stored in the illuminance level storage unit. The illumination control system according to claim 1, wherein the monitoring data selected from the storage unit is output.

Images