JP4029597B2 - Dimming control system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a dimming control device that is connected to a master unit via a signal line and performs blinking control and dimming control of one or more lighting loads in response to a command transmitted from the master unit via the signal line. The present invention relates to a dimming control system provided .
[0002]
[Prior art]
An example of a conventional light control device (light control terminal) B and a light control system is shown in FIG. This conventional system is an on / off control terminal for turning on / off power supply from a commercial power supply (not shown) to a plurality of lighting loads (lighting fixtures) L1 to L4 to control blinking (lighting or extinguishing). A, a dimming control terminal (a dimming control device) B that outputs a dimming signal for changing the light output of each of the lighting fixtures L1 to L4, and a flashing switch for turning on / off the lighting fixtures L1 to L4 A monitoring terminal (not shown) that monitors the operating state and outputs a monitoring signal when the blinking switch is operated, the dimming rate of the lighting fixtures L1 to L4 (when the light output when fully lit is 100%) The monitoring terminal (not shown) that monitors the operation state of the operation switch that sets the ratio) and outputs a monitoring signal when the operation switch is operated is connected to the main unit M via the signal line Ls. Configured.
[0003]
The master unit M identifies each terminal unit with a unique address assigned to each terminal unit, and predetermines the correspondence between addresses of the monitoring terminal unit and the on / off control terminal unit A and dimming control terminal unit B. When the monitoring signal is stored and received via the signal line Ls, the control terminal (on / off control terminal A or dimming control) in which the correspondence relationship between the monitoring terminal that transmitted the monitoring signal and the address is set. A command corresponding to the monitoring signal to the terminal device B), for example, a lighting command to turn on or turn off the lighting fixtures L1,..., Or a dimming rate command to command the dimming rate of the lighting fixture L1; The addresses (load addresses) for designating the lighting fixtures L1,... To be controlled are output to the on / off control terminal A and the dimming control terminal B via the signal line Ls.
[0004]
On the other hand, the on / off control terminal A is connected to each of the lighting fixtures L1 to L4 via the feed lines T1 to T4, respectively, and supplies power to each of the lighting fixtures L1 to L4 from the commercial power source via the feed lines T1 to T4. A plurality of relays each for opening and closing the power supply path are provided, the relays are driven in accordance with the lighting command or the lighting-off command received from the master unit M via the signal line Ls, and the lighting fixtures L1, L1 specified by the load address are provided. The lighting fixtures L1,... To be controlled are turned on or off by opening and closing the power supply path to.
[0005]
In the dimming control terminal B, the lighting fixtures L1 to L4 are sent and wired by the dimming signal line K composed of a pair of electric wires, and dimming according to the dimming rate command received from the master unit M is performed. A signal (a signal for changing the light output of the lighting fixtures L1,... To a level corresponding to the dimming rate) is output to each of the lighting fixtures L1 to L4 via the dimming signal line K.
[0006]
The luminaires L1 to L4 include, for example, a light source such as a fluorescent lamp and a dimmer that converts AC power supplied from a commercial power source and supplies the converted light to the light source. By varying the output from the dimmer to the light source in accordance with the dimming signal, the light output of the light source is matched with the designated dimming rate.
[0007]
The operation of the conventional example configured as described above will be briefly summarized. For example, when the blinking switch of the monitoring terminal in which the correspondence relationship between the lighting apparatus L1 and the address is set is pressed while the lighting apparatus L1 is turned off, the monitoring signal is transmitted from the monitoring terminal via the signal line Ls. It is transmitted to the base unit M. The master unit M that has received the monitoring signal recognizes the monitoring terminal that is the transmission source of the monitoring signal from the address included in the monitoring signal, and the address of the on / off control terminal A that has a corresponding relationship with this address. A lighting command is transmitted to. In addition, the said address combines the load address which designates several lighting fixtures L1-L4 made into a control object in the address which specifies ON / OFF control terminal A. Then, in the on / off control terminal A that has received the lighting command from the master unit M via the signal line Ls, the power supply path to the lighting fixture L1 specified by the load address by driving the relay as described above is provided. By closing, power is supplied from a commercial power source to turn on the lighting fixture L1 to be controlled.
[0008]
On the other hand, when the operation switch of the monitoring terminal device in which the correspondence relationship between the lighting device L1 and the address is set is operated in a state where the lighting device L1 is lit, a monitoring signal is transmitted from the monitoring terminal device via the signal line Ls. It is transmitted to the base unit M. The master unit M that has received this monitoring signal recognizes the monitoring terminal that is the transmission source of the monitoring signal from the address included in the monitoring signal, and sets the address of the dimming control terminal B that has a corresponding relationship with this address. A dimming rate command for commanding a dimming rate according to the operation of the operation switch is transmitted. Then, in the dimming control terminal B that has received the lighting command from the master unit M via the signal line Ls, the dimming signal corresponding to the dimming rate command received from the master unit M as described above is used as the dimming signal. By outputting to the line K, the dimming rate of the lighting fixture L1 in the lighting state is made to coincide with the designated dimming rate.
[0009]
[Problems to be solved by the invention]
However, in the above-described conventional system, the blinking control and the dimming control of the lighting fixtures L1,... Are performed separately by the two types of terminals, the on / off control terminal A and the dimming control terminal B. The wiring work of the signal line Ls for connection with the machine M becomes complicated, and there is a problem that a lot of work is required for the construction. On the other hand, when the dimming rate is specified as 0%, a lighting fixture of a type that stops power supply from the commercial power supply to the dimmer and extinguishes (hereinafter, this type of lighting fixture is referred to as a “dimming lighting fixture”). However, the conventional system and the dimming control terminal B cannot cope with such a dimming type lighting fixture.
[0010]
The present invention has been made in view of the above problems, and its object is lighting load is available and becomes the signal line dimming control system wiring work is Ru can simplify consisting called dimming cutting luminaires Is to provide.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 is connected to one or more dimming control devices and each dimming control device via a signal line, and the lighting load is connected to each dimming control device. A dimming control device comprising: a master unit that commands lighting, extinguishing or dimming rate; and one or more lighting loads that are lit, extinguished or dimmed according to a control command output from each dimming control device includes first receiving means for receiving an off command for instructing the lighting command or off to indicate the lighting of the lighting load through the signal line, the ratio of light output to full lighting of the lighting load through the signal line 0 The second receiving means for receiving the dimming rate command for instructing the dimming rate expressed in a ratio of% to 100%, and the lighting command or the turn-off command received by the first receiving means and the second receiving means A control command to control the lighting load by computing the dimming rate command Control processing means, and a dimming signal output means for outputting a dimming signal for setting the light output of each lighting load according to a control command given from the control processing means, the control processing means includes a lighting command, Stores the turn-off command and dimming rate command, and creates a control command for dimming control of the lighting load according to the stored dimming rate command when the lighting command is received. Create a control command for dimming control at the commanded dimming rate, create a control command to turn off the lighting load when receiving a turn-off command, and receive a dimming rate command to command a 0% dimming rate A control command for dimming control of the lighting load at a dimming rate of 0% is sometimes created, and each lighting load is turned off when receiving a control command for dimming at a dimming rate of 0%. And so-called dimmable lighting fixtures Done by specifying the flashing control and dimming control dimming ratio of the lighting load, wiring work of a conventional on / off control terminal signal line becomes unnecessary can be simplified.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described in detail with reference to FIGS.
[0014]
FIG. 1 is a block diagram showing a dimming control device D of this embodiment. The dimming control device D transmits / receives a transmission signal to / from the master unit M via the signal line Ls, and the dimming type lighting fixture (hereinafter, abbreviated as “lighting fixture” unless otherwise specified) L1 ′. A transmission signal is transmitted / received via the signal line Ls between the first transmission / reception unit 1 that receives a turn-on command for instructing the turn-on or turn-off command for instructing a turn-off, and the base unit M, and a lighting fixture L1. The second transmission / reception unit 2 that receives the dimming rate command for instructing the dimming rate of ', ..., the lighting command or the turn-off command received by the first transmission / reception unit 1, and the dimming command received by the second transmission / reception unit 2. The control processing unit 3 that generates a control command for controlling the lighting fixtures L1 ′,... By calculating the light rate command, and the lighting fixtures L1 ′,. A dimming signal output unit 4 for outputting a dimming signal for setting the optical output.
[0015]
The first and second transmission / reception units 1 and 2 receive the turn-on command, the turn-off command, and the dimming rate command by the transmission signal U in the format shown in FIG. 3 transmitted from the base unit M through the signal line Ls. To do. The transmission signal U includes a synchronization signal SY indicating the start of signal transmission, mode data MD indicating the mode of the transmission signal U, address data AD for individually calling terminals including the dimming control device D, lighting fixtures L1 ′, When control signal CD for controlling ..., checksum data CS for detecting a transmission error, and a signal return period WT which is a time slot for receiving a return signal (monitor data) from monitor terminal E etc. It is a division multiplexed signal, and data is transmitted by pulse width modulation. Then, in the first and second transmission / reception units 1 and 2, when the address data AD transmitted by the transmission signal U received via the signal line Ls matches the preset address, the control data is transmitted from the transmission signal U. The CD is fetched, and the fetched control data is output to the control processing unit 3. That is, the turn-on command, the turn-off command, and the dimming rate command are transmitted as control data CD. Since the first and second transmission / reception units 1 and 2 receive the transmission signal U having the same format as described above, the first and second transmission / reception units 1 and 2 can be configured with one circuit without being configured with separate circuits.
[0016]
The control processing unit 3 includes a first storage unit 3a that stores a lighting command or a turn-off command among the control data input from the first and second transmission / reception units 1 and 2, and a first storage unit 3a that stores a dimming rate command. 2 storage units 3b and an arithmetic processing unit 3c constituted by a microcomputer. The arithmetic processing unit 3c creates a control command by performing a logical operation on the lighting command or extinguishing command stored in the first storage unit 3a and the dimming rate command stored in the second storage unit 3b. The created control command is output to the dimming signal output unit 4.
[0017]
The dimming signal output unit 4 outputs, to the dimming signal line K, a dimming signal for lighting, extinguishing or dimming control of the lighting fixtures L1 ′,... According to the control command received from the arithmetic processing unit 3c. Then, the lighting fixture L1 ′,... That has received the dimming signal via the dimming signal line K adjusts the output of the dimmer according to the dimming signal.
[0018]
Next, specific contents of the logical operation in the arithmetic processing unit 3c will be described.
[0019]
First, when the lighting command is received by the first transmission / reception unit 1, the storage contents of the first storage unit 1 are rewritten to the lighting command, and the lighting fixture is used at the dimming rate stored in the second storage unit 3b. A dimming signal (voltage signal) for dimming and lighting L1 ′,... (All lighting when the dimming rate is 100%) is output to the dimming signal line K. When the second transmitter / receiver 2 receives a dimming rate command other than 0%, the dimming rate stored in the second storage unit 3b is rewritten, and the lighting fixtures L1 ′,. If the lighting instruction is stored in the first storage unit 3a), the dimming signal line K is used as the dimming signal for dimming and lighting the lighting fixtures L1 ′,... With the rewritten dimming rate. Output to. Further, when the first transmission / reception unit 1 receives a turn-off command, the memory content of the first storage unit 3a is rewritten to the turn-off command, and a dimming signal for turning off the lighting fixtures L1 ′,. A dimming signal corresponding to a light rate of 0% is output to the dimming signal line K. Finally, when the second transmitter / receiver 2 receives a 0% dimming rate command, the memory content of the first storage unit 3a is rewritten to a turn-off command and the dimming stored in the second storage unit 3b The rate is rewritten to 0%, and a dimming signal corresponding to the dimming rate of 0% is output to the dimming signal line K.
[0020]
FIG. 2 shows a system configuration diagram of a dimming control system including the dimming control device D of this embodiment as a terminal device. That is, when the dimming control device D of the present embodiment and the blinking switch for turning on / off the lighting fixtures L1 ′,... As described in the conventional example are monitored, the blinking switch is operated. The monitoring terminal E that outputs the monitoring signal (monitoring data) and the operation state of the operation switch that sets the dimming rate of the lighting fixture L1 ′,... Are monitored, and the monitoring signal is output when the operation switch is operated. A monitoring terminal (not shown) or the like is connected to the base unit M through the signal line Ls. However, although illustration is omitted, each luminaire L1 ′,... Is supplied with power from a commercial power source via a power supply line.
[0021]
For example, when a blinking switch is operated in the monitoring terminal E to turn on the lighting fixture L1 ′,... Being turned off, a transmission signal having a lighting command as control data from the master unit M to the dimming control device D U is sent. Further, when the operation switch is operated by the monitoring terminal device in order to set the dimming rate of the lighting fixtures L1 ′,... To 70%, the dimming rate of 70% from the master unit M to the dimming control device D A transmission signal U using the dimming rate command as control data is transmitted. In the dimming control device D, the first transmission / reception unit 1 receives the lighting command and stores it in the first storage unit 3a as described above, and the second transmission / reception unit 2 receives the dimming command and receives the second dimming command. Is generated in the storage unit 3b, the control processing unit 3c generates a control command for dimming and lighting the lighting fixture L1 ′,... At a dimming rate of 70%, and outputs the control command to the dimming signal output unit 4. A dimming signal for dimming and lighting the lighting fixture L1 ′,... At a dimming rate of 70% is output from the optical signal output unit 4 to the dimming signal line K. Then, in the lighting fixtures L1 ′,... That have received the dimming signal via the dimming signal line K, the output of the dimmer is adjusted and the dimming is performed at a dimming rate of 70%.
[0022]
On the other hand, when the blinking switch is operated in the monitoring terminal E in order to turn off the lighting fixtures L1 ′,... That are turned on, a transmission signal having a turn-off command as control data from the master unit M to the dimming control device D U is sent. In the dimming control device D, when the turn-off command is received by the first transmission / reception unit 1 as described above, the contents of the first storage unit 3a are rewritten to the turn-off command, and the lighting unit L1 ′,. A control command for setting the dimming rate to 0% is generated and output to the dimming signal output unit 4, and a dimming signal for setting the lighting fixture L1 ′,. Output to the dimming signal line K. Then, in the luminaires L1 ′,... That have received the dimming signal with the dimming rate of 0% via the dimming signal line K, the dimmer stops output and turns off.
[0023]
This embodiment is configured as described above, and blinking control and dimming control of a so-called dimming-type lighting fixture can be performed by designating the dimming rate, and the conventional on / off control terminal A is not required and the signal line There is an advantage that the wiring work of Ls can be simplified. Moreover, the dimming control device D of the present embodiment uses the same hardware configuration as the dimming control terminal B of the conventional example, and only changes the software of the arithmetic processing unit 3c to execute the above arithmetic processing. Therefore, significant cost reduction can be achieved.
[0024]
【The invention's effect】
The invention of claim 1 is connected to one or more dimming control devices and each dimming control device via a signal line, and the lighting load is turned on / off or the dimming rate for each dimming control device. A master unit for commanding, and one or more lighting loads that are turned on, off, or dimmed according to a control command output from each dimming control device. The dimming control device illuminates via a signal line The ratio of the light output to the total lighting of the lighting load via the first receiving means for receiving the lighting command for instructing the lighting of the load or the turning-off command for instructing the lighting to be turned off via the signal line is expressed as a ratio of 0% to 100%. The second receiving means for receiving the dimming rate command for instructing the dimming rate, the lighting command or the turn-off command received by the first receiving means, and the dimming rate command received by the second receiving means. Control processing means for creating a control command for controlling the lighting load and control processing A dimming signal output means for outputting a dimming signal for setting the light output of each lighting load according to a control command given from the stage, and the control processing means includes a lighting command, a turn-off command, and a dimming rate command When the lighting command is received, a control command for dimming control of the lighting load is created according to the stored dimming rate command, and when the dimming rate command is received, the lighting load is set at the commanded dimming rate. Create a control command for dimming control, create a control command to turn off the lighting load when receiving the turn-off command, and set the lighting load to 0% when receiving the dimming rate command that commands a dimming rate of 0% A control command for dimming control with a dimming rate is created, and each lighting load is turned off when receiving a control command for dimming with a dimming rate of 0%. Lighting control blinking control and dimming control Done by specifying the light ratio, wiring work of a conventional on / off control terminal signal line becomes unnecessary has the effect of simplifying.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a dimming control device according to an embodiment.
FIG. 2 is a system configuration diagram showing the dimming control system of the above.
FIG. 3 is an explanatory diagram of a transmission signal in the same as above.
FIG. 4 is a system configuration diagram showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st transmission / reception part 2 2nd transmission / reception part 3 Control processing part 3a 1st memory | storage part 3b 2nd memory | storage part 3c Operation processing part 4 Dimming signal output part L1 ', ... Dimming-off type lighting fixture M Parent Machine

Claims (1)

1 to a plurality of dimming control devices, a master device connected to each dimming control device via a signal line, and instructing each dimming control device to turn on / off an illumination load or a dimming rate; Including one or more lighting loads that are turned on, turned off, or dimmed according to a control command output from the dimming control device,
The dimming control device includes: a first receiving unit that receives a lighting command for instructing lighting of the lighting load or a lighting-off command for instructing lighting-off via the signal line; and a light output for all lighting of the lighting load via the signal line. The second receiving means for receiving the dimming rate command for instructing the dimming rate expressed as a ratio of 0% to 100%, the lighting command or the turn-off command received by the first receiving means, and the second Control processing means for creating a control command for controlling the lighting load by processing the dimming rate command received by the receiving means, and setting the light output of each lighting load according to the control command given from the control processing means And a dimming signal output means for outputting a dimming signal for controlling, and the control processing means stores the lighting command, the extinguishing command, and the dimming rate command, and stores the dimming rate stored when receiving the lighting command. Dimming control of lighting load according to the command Create a control command, create a control command for dimming control of the lighting load at the commanded dimming rate when receiving the dimming rate command, and create a control command to turn off the lighting load when receiving the turn-off command When the dimming rate command for commanding the dimming rate of 0% is received, a control command for dimming control of the lighting load at the dimming rate of 0% is created .
Each lighting load is turned off when receiving a control command for dimming at a dimming rate of 0%.

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