JP2936686B2 - Lighting control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to dimming of a lighting load using a dimming switch, for example, an up / down switch (hereinafter referred to as a UDS switch). The present invention relates to a lighting control system configured to control the lighting control.

(Prior art) At least a dimming control terminal, a UDS switch, and the like are connected via a main operation panel and a transmission line, and are connected to a circuit under control of the dimming control terminal by operating the UDS switch. 2. Description of the Related Art There is known an illumination control system capable of controlling dimming of an illumination load in a stepwise manner. In such a dimming control system, every time an operation of the "up" switch or the "down" switch of the UDS switch is performed, an operation signal is transmitted to the main operation panel via the transmission line, and the main operation panel is operated. The board transmits the gradation data to the dimming control terminal to which the circuit assigned to the UDS switch belongs based on the dimming time and the gradation data change amount fixedly stored in the RPOM in advance in the system. I was

(Problems to be Solved by the Invention) As described above, all the lighting loads conventionally placed under the control of the lighting control system uniformly have the same dimming time and gradation data change amount in accordance with the operation of the UDS switch. The dimming of the dimming load was controlled.

However, dimming in office buildings, etc.
When using P (Overhead Proctor) to darken the room, fine dimming control is not required.
Dimming in 20% units is preferred.

In addition, dimming control in the lobby or entrance of an office building requires a staging effect, and thus requires fine-grained dimming control.

The present invention has been made in view of the above points, and an object of the present invention is to provide a lighting control system capable of changing dimming control according to a place where a lighting load is placed.

[Means for Solving the Problems] At least a dimming control terminal, a dimming switch, and the like are connected via a main operation panel and a transmission line, and the dimming control is performed by operating the dimming switch. In a lighting control system capable of controlling dimming of a lighting load connected to a circuit under control of a terminal device in a stepwise manner, a dimming time per step of lighting of the lighting load and a change in gradation data per step Setting means for setting the amount; storage means for storing the dimming time and gradation change amount set by the setting means; and dimming stored in the storage means in response to operation of the dimming switch A gradation data generating means for generating gradation data based on a time and a change amount of the gradation data, and the gradation data generated by the gradation data generating means belong to a circuit assigned to the light control switch. Lighting control system is provided which is characterized by comprising an output means for outputting to that dimming control terminal unit.

(Operation) A dimming control terminal to which gradation data is created based on the dimming time and the gradation data change amount set by the setting means and to which the circuit assigned to the UDS switch belongs in response to the operation of the UDS switch. The gradation data is transmitted to the container.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of the lighting control system. In FIG. 1, reference numeral 11 denotes a main operation panel which controls the entire system. The main operation panel 11 contains a microcomputer and its peripheral circuits.

The main operation panel 11 has an LCD for displaying various display data.
(Liquid crystal display device) 11a, a key operation unit 11b in which numeric keys and cursor keys are arranged, an OCR (optical character reading device) 11c, and a lighting switch group 11d are provided. The main operation panel 11 is provided with an allocation control unit that performs an allocation process performed in response to the operation of the key operation unit 11b, in addition to the control units shown in various control flows described below.

The main control panel 11 two-wire signal transmission line 12 via dimming control terminal unit 13 ₁ to 13 _n of the, UDS switch 14, the optical sensor terminals 15 and the like are connected. The optical sensor 16 is connected to the optical sensor terminal 15. Furthermore, this transmission signal line 12
Although not shown, an ON-OFF terminal, an individual switch, and another UDS switch are connected.

The above dimming control terminal unit 13 ₁ to 13 _n are respectively 4 circuit connection, the lighting load is connected to each circuit.

Signal transmission from the main operation panel 11 to the dimming control terminals 13 _{1 to} 13 _n is performed in a voltage mode, and signals from the dimming control terminals 13 _{1 to} 13 _n to the main operation panel 11 are transmitted. The transmission is performed in a current mode.

Next, a plan view of the UDS switch 14 is shown in FIG. This U
The DS switch 14 is an up switch 141 operated to make the light brighter, a stop switch 142 operated to stop the operation of a previously operated switch, a down switch 143 operated to make the light darker, and turning on / off the light. An on / off switch 144 that is operated when the user performs the operation is provided. The UDS switch 14 transmits data including switch information for identifying whether or not each of the switches 141 to 144 is operated to the main operation panel 11 in a data format shown in FIG.

An area for storing the data shown in FIG. 3 is secured in the memory of the main operation panel 11 for each UDS switch.
That is, this memory stores the current gradation data (0 to 31),
One-step light control time T (second) and gradation data change amount X (step) [this light control time T is designated by operating the key operation unit 11b or reading the layout card shown in FIG. 10 by the OCR 11c. FIG. 4 shows the relationship between the FG (flag) and the gradation data change amount X. When the up switch 141 is operated, “1” is set. "Set down FG
(Flag), "1" when the stop switch 142 is operated
During the stop, FG (flag) is set, it is inverted each time the on / off switch 144 is operated. When "1" is set, the lighting process is performed, and when reset, the lighting process is performed. FG, a subtraction timer for controlling the dimming time T, the operation of the key operation unit 11b or the assigned card
The designated allocation data is stored by being read by c.

Here, the allocation data is data relating which UDS switch controls the lighting load connected to which circuit (1 to 4 circuits) of which dimming control terminal.

Next, the operation of the embodiment of the present invention configured as described above will be described. First, the correspondence between the UDS switch and the four circuits connected to the dimming control terminal, which is performed before actually using the lighting control system, is assigned. The allocation processing for setting the gradation data change amount X will be briefly described. This allocation processing can be performed by reading the key operation unit 11b or the allocation card shown in FIG. 10 with the OCR 11c. For example, when the allocation process is performed by key operation, a menu of allocation (FIG. 7) is displayed for each UDS switch on the LCD 11a by a predetermined key operation, and the cursor is operated by operating the cursor switch of the key operation unit 11b. Move to a predetermined position to adjust the dimming time T and the gradation data change amount X
Is input by operating the numeric keypad. In the menu of FIG. 7, the dimming time T is 1 (sec) for the circuit (1) of the address (3), the gradation data change amount X is 4, and the dimming time T is for the circuit (2) of the address (3). 0.7 (sec),
The display state when 2 is input as the gradation data change amount X is shown.

The dimming time T and the gradation data change amount X input as described above are stored in a predetermined area of a memory in the main operation panel 11 as shown in FIG.

The menu shown in FIG. 7 is a menu used when the dimming time T and the gradation data change amount X are input by key operation. In addition, the menu is connected to a UDS switch and a dimming control terminal. There is a menu for setting the correspondence between the four circuits, and this menu is displayed for each switch,
It specifies which switch of which dimming control terminal is connected to the switch. That is, the menu shown in FIG.
The display is displayed on the LCD 11a, the cursor is moved to a predetermined position, and a circle is input, whereby a process of allocating the switch and the circuit under the control of the dimming control terminal device is performed.

By the above allocation process, the allocation table shown in FIG. 9 is stored in a predetermined area of the memory in the main operation panel 11 as allocation data. By this allocation processing, the switches are allocated to the circuits (1 to 4) of the dimming control terminal. For example, the allocation table in FIG. 9 indicates that the switch A can control any of the dimming control terminals a to 4.

The above processing is performed when the key operation unit 11 is operated to perform the allocation processing. However, by marking a predetermined portion of the allocation card shown in FIG. The data change amount X can be set. For example, to set the dimming time T to 1 second, mark the numerical value “1” in the “time” item of the layout card, and enter “2” as the gradation data change amount X. What is necessary is just to mark "2" of the "gradation level" item. In addition, which circuit of which terminal is designated can be set by marking a predetermined numerical value of the assigned circuit. By having this assigned card read by OCR11c,
The dimming time T and the gradation data change amount X are written in a predetermined area of the memory of the main operation panel 11, and the table shown in FIG. 9 is stored as allocation data.

Next, processing when the UDS switch 14 is operated will be described. First, when the user operates the UDS switch 14, data having the format shown in FIG. 5 is transmitted from the UDS switch 14 to the main operation panel 11 via the transmission signal line 12. Upon receiving this data, the main operation panel 11 performs a switch operation process shown in FIG. In other words, the main operation panel 11 is UD
Determine the switch information among the data transmitted from the S switch 14, the up switch 141, the stop switch 142,
It is determined that the down switch 143 and the on / off switch 144 have been operated.

That is, up switch 141 or down switch 1
When it is determined that 43 has been operated, only the FG during memory up is set (“1”) or the FG during memory down is set (“1”), and the other FGs are reset (step S11).
~ S14). After the processing in step S12 or S14 is performed, the dimming time T set in the allocation processing in the subtraction timer of the memory is set (step S1).
Five).

On the other hand, if it is determined that the stop switch 142 has been operated, all of the FG during memory up, the FG during down, and the FG during stop are reset ("0") (step S16,
S17).

If it is determined that the ON / OFF switch 144 has been operated, the “ON” FG of the memory is inverted (step S1).
8, S19). Then, it is determined whether or not the "ON" FG is set (step S20). If it is determined that the FG is set, the table shown in FIG. 9 is referred to and the circuit assigned to the UDS switch 14 is searched. Then, the current gradation data stored in the memory is transmitted in the transmission format shown in FIG. 6 to the dimming control terminal to which the circuit is connected (step S21).

On the other hand, if it is determined in step S20 that the “ON” FG has been reset, all of the up FG, down FG, and stop FG stored in the memory are reset (step S20). twenty two). Then, referring to the table of FIG. 9, the circuit assigned to the UDS 14 is searched, and the dimming control terminal to which the circuit is connected is connected to the data of the gradation “0” meaning “turn off”. Is transmitted in the transmission format shown in FIG. 6 (step S23).

As described above, the processing based on the switch information transmitted from the UDS switch 14 is performed by the main operation panel 11.

Next, a process of transmitting the gradation data to the assigned circuit will be described with reference to FIG. First, the main operation panel 11 determines the “ON” FG of the memory, and determines whether the FG is set (step S31). If it is determined in step S31 that "set" has been set, that is, if the user has specified lighting of the light,
It is determined whether FG is set (step S32).
If the determination in step S32 is “YES”, the current gradation data stored in the memory is “31”.
Is determined (step S33).

If "YES" is determined in the determination in step S33, since there is no grayscale whose grayscale data is larger than "31", the FG is reset while the memory is up and the FG is stopped.
Is set (step S34).

On the other hand, if the determination in step S33 is “NO”, it is determined whether the value of the subtraction timer is “0” (step S35). Here, every time the up switch 141 or the down switch 143 is operated as described above, the dimming time T is set in the subtraction timer (step S15 in FIG. 11). The value of the subtraction timer is decremented by 10 msec by a 10 msec interruption shown in FIG.

If “YES” is determined in the determination in step S35, the current gradation data stored in the memory is added by the gradation data change amount X and stored as the current gradation data. The gradation data is updated (step S36).

Then, referring to the allocation table in FIG. 9, the UD
The circuit assigned to the S switch 14 is searched, and the updated gradation data is transmitted to the dimming control terminal to which the corresponding circuit belongs in the transmission format shown in FIG. 6 (step S37). Then, the dimming time T is set in the subtraction timer (step S38). Hereinafter, while the FG is set during the up, the dimming time T set in step S38 is set.
Until is set to "0", the processing of steps S31, S32, S33, S35 is repeatedly executed. And. The dimming time T has passed,
When the value of the subtraction timer becomes “0”, “YE” is determined in step S35.
Is determined as "S", the current gradation data stored in the memory is added by the gradation data change amount X, stored as the current gradation data, and the current gradation data is updated (step S36). ). Then, referring to the assignment table of FIG. 9, the circuit assigned to the UDS switch 14 is searched, and the gradation control data of FIG. 6 after updating the transmission format of FIG. Is transmitted (step S37). In this way, during up F
While G is set, the gradation data is transmitted from the main operation panel 11 to the corresponding dimming control terminal every dimming time T. Moreover, each time the data is transmitted, the gradation data is increased by the gradation data change amount X set in the allocation process.

Then, when the gradation data transmitted to the dimming control terminal increases with time and becomes “31”, the step S3 is performed.
Since it is determined as “YES” in the determination of 3 and the FG is reset during the up, no further gradation data is transmitted.

On the other hand, if “NO” is determined in step S32, it is determined whether the down FG is set. If “YES” is determined in the determination in step S39, it is determined whether the current gradation data stored in the memory is “1” (step S40).

If "YES" is determined in the determination in step S40, the FG during the memory down is reset and the FG during the stop is set (step S41).

On the other hand, if the determination in step S40 is “NO”, it is determined whether the value of the subtraction timer is “0” (step S42). Here, every time the up switch 141 or the down switch 143 is operated as described above, the dimming time T is set in the subtraction timer (step S15 in FIG. 11). The value of the subtraction timer is decremented by 10 msec by a 10 msec interruption shown in FIG.

If "YES" is determined in step S42, the current gradation data is subtracted from the current gradation data stored in the memory by the gradation data change amount X and stored as the current gradation data. The gradation data is updated (step S43).

Then, referring to the allocation table in FIG. 9, the UD
The circuit assigned to the S switch 14 is searched, and the updated gradation data is transmitted to the dimming control terminal to which the corresponding circuit belongs in the transmission format shown in FIG. 6 (step S44). Then, the dimming time T is set in the subtraction timer (step S45). Hereinafter, while the FG is set during the down time, the light control time T set in step S45 is set.
Until is set to "0", the processing of steps S31, S32, S39, S40 and S42 is repeatedly executed. When the light control time T has elapsed and the value of the subtraction timer becomes “0”, “YES” is determined in step S42, and the gradation change amount X is subtracted from the current gradation data stored in the memory. Then, it is stored as the current gradation data, and the current gradation data is updated (step S43). Then, the circuit assigned to the UDS switch 14 is searched by referring to the assignment table shown in FIG. 9, and the gray scale after updating in the transmission format shown in FIG. The data is transmitted (step S37). In this manner, while the down FG is set, the grayscale data is transmitted from the main operation panel 11 to the corresponding dimming control terminal every dimming time T. Moreover, each time the data is transmitted, the gradation data is subtracted by the gradation change amount set in the allocation process.

Then, when the gradation data transmitted to the dimming control terminal decreases with time and becomes “1”, the above step is performed.
Since “YES” is determined in the determination of S40, and the FG is reset during the down, the gradation data lower than that is not transmitted.

When the up switch 141 or the down switch 143 is operated as described above, as shown in FIG.
The gradation data can be increased or decreased by each.

Further, since the dimming control of the lighting loads connected to the different circuits can be made different by the allocation process, it is possible to perform fine-grained control. For example, for dimming in office buildings, etc., when using an overhead projector (OHP) in a conference room, fine dimming control is not required when the room is darkened.
The gradation data change amount X and the dimming time T are set to be large, and the dimming control in the lobby or the entrance of the office building requires an effect. Therefore, the gradation data change amount X and the dimming time T are set to be small. Thus, fine lighting control can be performed according to the installation location of the lighting load.

[Effects of the Invention] As described above in detail, according to the present invention, it is possible to provide a lighting control system capable of changing dimming control according to a place where a lighting load is placed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of a lighting control system, FIG. 2 is a plan view showing a UDS switch, FIG. 3 is a diagram showing the contents of a memory, and FIG. FIG. 5 is a diagram showing a transmission format of data transmitted from the UDS switch to the main operation panel, FIG. 6 is a diagram showing a transmission format of data transmitted from the main operation panel to the dimming control terminal, 7 and 8 show menus, FIG. 9 shows an allocation table, FIG. 10 shows an allocation card, and FIGS. 11 to 13 explain the operation of one embodiment of the present invention. It is a flowchart for performing. 11 ...... main operation panel, 12 ...... transmission signal lines, 13 ₁ to 13 _n ...... dimming control terminal unit, 14 ...... UDS switch.

Claims (1)

(57) [Claims] At least a dimming control terminal, a dimming switch, and the like are connected via a main operation panel and a transmission line, and are connected to a circuit under control of the dimming control terminal by operating the dimming switch. In a lighting control system capable of controlling the dimming of a lighting load in a stepwise manner, one of the lighting of the lighting load
Setting means for setting a dimming time per step and a gradation data change amount per step; storage means for storing the dimming time and the gradation change amount set by the setting means; Tone data creating means for creating tone data based on the dimming time and tone data change amount stored in the storage means in response to an operation, and tone data created by the tone data creating means Output means for outputting to a dimming control terminal belonging to a circuit allocated to the dimming switch.