JPS6057671B2 - lighting control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lighting control device that is capable of controlling pattern dimming of a large number of lighting loads at once from one location.

Conventionally, various lighting control devices capable of pattern dimming control have been proposed for purposes such as stage lighting, but in the case of devices for such purposes, when changing the pattern dimming state, Since each lighting load needs to be changed to a new dimming state, we have adopted a method in which each lighting load is individually connected with an electric wire to the main unit that performs pattern dimming control. In addition to making the equipment expensive, as the number of lighting loads increases, the number of electric wires introduced to the main unit also increases, making wiring work that much more complicated and increasing wiring costs. There was a problem in that it was practically impossible to use it for general purpose to control the lighting load of the lighting system.

The present invention has been provided in view of the above-mentioned points, and is provided with a pattern switch and a normal dimming control memory in the base unit, and creates dimming control information for controlling each lighting load. By configuring the light control information to be transmitted to each lighting load using a cyclic time-division multiplex transmission method, it is possible to eliminate the need to introduce separate electric wires from each lighting load to the main unit, thereby reducing wiring work. By reducing costs, the overall equipment price is low, and by making pattern dimming control possible in general lighting equipment, each lighting load can be set to the dimming state as needed, making it optimal for each location. It is possible to obtain the illuminance and at the same time save power.Especially when the outside light is bright such as during the day, it takes priority over the dimming control information from the pattern switch and the normal dimming control memory, An object of the present invention is to provide a lighting device that can automatically switch and configure a dimming pattern that can reduce illuminance and further save power. An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a configuration diagram of an embodiment of the present invention,
The base unit 1 and the first to first slave units 2... are one signal line 7
The base unit 1 sends an address signal for individually selecting each slave unit 2 . . . and a control signal for controlling the selected slave unit 2 to each slave unit 2 . Transmit to. The dimmer 3... performs a dimming operation based on the received control signal output when each corresponding slave unit 2... receives a control signal, and is connected to a power line such as a commercial power line. The dimmers 3 control the dimming of the power from the dimmers 3 to supply power to the corresponding lighting loads 4, and these dimmers 3, for example, use stage dimmer ballasts. or a phase control method using a triax. The daylight sensor 8 detects external light and outputs a detection signal if the external light is above a certain level of illuminance. Figure 2 shows base unit 1
, handset 2... shows an example of transmission signals sent and received between handsets 2, etc., and transmits a start signal, an address signal, a control signal, and a return signal as necessary to one handset 2 over time. They are arranged in a column, and the start signal constitutes a synchronization signal for obtaining the timing for reading the subsequent address signal, control signal, and return signal by the handset 2,
When the handset 2 receives and reads a "H" level signal with a predetermined width, the handset 2 determines that the next signal is an address signal, and the handset 2 reads the address signal. Based on the signal, the handset 1 determines whether it is calling itself or not.In other words, it selects one of the handsets 2 based on the address signal and controls that handset 2 based on the control signal. A return signal regarding the control status etc. is sent back from the handset 2 to the base unit 1. Fig. 3 shows an example of the circuit of the base unit 1, and shows several types (eight types) of predetermined dimming patterns. It has pattern switches 51, 5, . . . , 58 for selection and setting, and the outputs of the pattern switches 51, .

From the normal dimming control memory 6, each lighting control information in various dimming patterns is read out. In addition, when creating address data, the output clock signal of the clock generation circuit 10 is input to the synchronization circuit 11 to create the necessary synchronization signal, and this synchronization signal is counted by the address counter 12 to create the address data. With this address data, the dimming control information for the lighting load 4 at that address is read out from the normal dimming control memory 6 as described above, and
This address data and dimming control information are input to the signal calculation circuit 13 under the control of the output of the synchronization circuit 11. Here, the normal dimming control memo IJ6 is formed using ROM when the dimming pattern is fixed, and is formed using RAM or EPROM when the dimming pattern can be freely changed.
It uses a programmable memory element such as.
Furthermore, in addition to the normal dimming control memory 6, the base unit 3 has a daytime control memory 15 and a daytime dimming setting circuit section 16.
Daytime control memo 1 River 5 stores each address of each lighting load 4 to which dimming control is desired, such as a lighting load set at a position where outside light enters, such as a window side, when the daylight sensor 8 is operating. The address data input from the address counter 12 and the stored address are compared, and if they match, a match signal T is generated which means that the lighting load 4 is subordinate to the operation of the daylight sensor 8. is outputted to the sensor signal calculation circuit 17 to perform an AND operation on the signal S of the daylight sensor 8, and the output R of the sensor signal calculation circuit 17 is inputted to the signal calculation circuit 13. On the other hand, the daytime dimming setting circuit section 16 is provided in the signal calculation circuit 13 as shown in FIG. It is designed to output parallel control signals. Signal calculation circuit 13
is a 4-bit signal D having dimming control information that is normally selected and input from the dimming control memory 6 as shown in FIG.
AND gates A1 to A4 each input φ to D3 as input signals and input the inverted signal of the output signal of the sensor signal calculation circuit 17 as input signals, and 4-bit signals Lφ to daytime dimming setting circuit section 16. AND gates A5 to A8 which input the output signals of the sensor signal calculation circuit 13, OR gates 0Rφ which input the gate outputs of AND gates A1 and A6, and input the gate outputs of AND gates A6 and A6. OR gate 0R1 and AND gates A3 and A
OR gate 0R2 which takes the gate output of 7, and OR gate 0R3 which takes the gate output of AND gate 8 and A8 as input.
and the gate output D of each OR gate 0Rφ to 0R3
A transmission signal consisting of a series pulse train as described above is created from φ'' to D3'' by a P/S conversion means (not shown), and this is sent to the signal line 7 via the coupler 14. On the other hand, the return signal from the signal line 7 is converted into a parallel signal inputted to the signal calculation circuit 13 via the coupler 14, which is once stored in the return signal memory 19 and then used for display, etc. FIG. 6 shows a block circuit diagram of the handset 2, and the signal line 7
The transmission signal consisting of the serial pulse train signal on the signal line 7 is taken into the handset 2 via the coupler 14, and the first and second
is read into the S/P conversion circuits 21 and 22 of the first S/P conversion circuit 21 in synchronization with the clock of the synchronous circuit 23 output.
The control signal is read into the second S/P conversion circuit 22, and the address signal is read into the second S/P conversion circuit 22.
, the second S/P conversion circuits 21 and 22 are constituted by shift registers that convert control signals and address signals consisting of serial pulse train signals into parallel transmission signals that simultaneously transmit a predetermined number of bits, and output the parallel transmission signals.

When the address signal input to the second S/P conversion circuit 22 matches the address of the slave unit 2 set by the address switch 24, an output signal is generated to the address comparator 25, and the address comparator 25 outputs an output signal. The signal is latched by the latch circuit 26 as a control signal and parallel data input to the first S/P conversion circuit 21, and the output of the latch circuit 26 is input to the dimmer 3. Now, when address signal 1 is input from address counter 12 to each memory 6, 15, dimming control information regarding lighting load 4 corresponding to address i is sent from normal dimming control memory 6 as a parallel 4-bit signal. The signals are inputted to the signal calculation circuit 13 as Dφ to D3.

On the other hand, in the daytime control memory 16, if the address of the lighting load 4 which is in a dependent relationship with the stored operation of the daylight sensor 8 matches the input address signal 1, the H level signal T must match. For example, a signal at the "゜L" level is output to the sensor signal calculation circuit 17. If the outside light is dark and the daylight sensor 8 does not operate, the sensor signal calculation circuit 17 is output regardless of the above-mentioned coincidence or mismatch. The output R becomes the L level, and the output of the AND gate A5 of the signal calculation circuit 13 is fixed at the L level, and the normal dimming control memory 6 is output through the AND gates A1 to A4 and the OR gates 0R1 to 0R4. The dimming control information signals Dφ'' to D3 read out from the S
The signal is converted into a serial pulse train transmission signal by the /P conversion means and transmitted to the corresponding slave unit 2. That is, daylight sensor 8
When not in operation, each lighting load 4 is dimmed and lit according to a dimming pattern based on dimming control information in the normal dimming control memory 6. Assuming that the daylight sensor 8 is activated here, the lighting load 4 corresponding to the address where the output T of the daytime control memory 15 is at the "H" level will have the output R of the sensor signal calculation circuit 17 at the "H" level. Natsute and Gate A1-A4
The output of is fixed at the ゜゜L゛ level, and the signals Lφ~L of the daytime dimming setting circuit section 16 are taken out through the AND gate input~ and the OR gate 0Rφ~0R3, and the transmission signal D″φ
~D''3, the light is controlled to be lit at the dimming level set by the daytime dimming setting circuit section 16.

Also, the lighting load 4 corresponding to the address where the output T of the daytime control memory 15 goes to the "L" level is read out from the normal dimming control memory 6 in the same way as when the daylight sensor 8 is not operating. The lighting is controlled at a dimming level based on the dimming control information. Fig. 7 shows another embodiment of the present invention, in which when the daylight sensor 8 operates, the dimming is controlled at the current Each dimmer 3 for each lit lighting load 4
This is 4-bit information that is stored in the daytime control memo 1J15 in association with each lighting load 4, and is read out each time each address signal 1 is input. The signals Lφ~L3 and the signal S from the daylight sensor 8 are subjected to an AND operation in the AND gate circuit 27 shown in FIG. 8, and the gate output L″φ~L″ is obtained as shown in FIG.
3 is input to the subtraction circuit 28 provided before the signal calculation circuit 13, and the corresponding address dimming control information signals Dφ to D3.3 are input from the normal dimming control memory 6. Subtract with
By using the signals L″φ to L″3, control signals D″φ to D″3, which are reduced in the amount of dimming by a predetermined rate, are obtained.

That is, for example, if the amount of dimming set by the pattern switch 51 is 90%, the control signal D"~D''3 has a dimming amount of 80%. Fig. 10 shows another embodiment of the present invention. Whether or not to ignore the dimming control information signals Dφ to DPH from the normal dimming control memory 6 for each lighting load 4 at each address, in other words, whether the lighting load 4 at the address operates the daylight sensor 8 In addition to storing information as to whether or not the lighting load 4 is dependent on the lighting load 4, dimming control information for each dependent lighting load 4 is also stored, and in the signal calculation circuit 13 shown in FIG. Perform an AND operation with the signal S of the optical sensor 8 using an AND gate, and use the gate output as
Similarly to the embodiment shown in FIG. It is designed to selectively control one of the signals Lφ to L3 of dimming control information.

As described above, the present invention provides a master device with a pattern switch and a dimming control memory, creates dimming control information for controlling each lighting load during pattern dimming, and cycles this dimming control information. Since it is configured to transmit to each lighting load using a time division multiplex transmission method, it is no longer necessary to connect the load power line from each lighting load to the main unit individually and perform dimming control on the main unit, as in the past. This eliminates the need to configure a large-scale device, eliminates the need for wiring work such as individual load power lines, and reduces the overall device price. It is now possible to perform pattern dimming control in general lighting equipment, and the dimming pattern can be appropriately selected depending on external light, weather, the illuminated place being used at that time, the content of work there, etc. By operating the daylight sensor, it is possible to appropriately lower the dimming amount of the lighting load that is dependent on the operation of the daylight sensor stored in the daytime control memory, so the lighting device can turn off the lights and respond to the incoming outside light. In comparison, by controlling the dimming of any lighting load by changing the memory contents of the daytime control memory, it is possible to obtain the optimum illuminance at that time in each illuminated place, and at the same time reduce unnecessary lighting. This has the effect that there is nothing to do and it is possible to save power.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention, and FIG.
The figure is an explanatory diagram of the transmission signal transmitted between the base unit and slave unit, Figure 3 is a block circuit diagram of the base unit, and Figure 4 is an explanation of the dimming control memory installed in the base unit. 5 is a circuit diagram in which a part of the signal calculation circuit same as the above can be omitted, FIG. 6 is a block diagram of the slave unit same as the above, and FIG. Figure 8 is a circuit diagram of the AND gate circuit as above, Figure 9 is a block diagram of the subtraction circuit as above, and Figure 10 is a block diagram of the same as above.
The figure is a block diagram showing the configuration of another embodiment of the present invention.
Figure 1 is a circuit diagram in which a part of the signal calculation circuit same as above can be omitted, and 1 is a master unit, 2 is a child unit, 3 is a dimmer, 4 is a lighting load, and 5
1,5. , 53... are pattern switches, 6 is a normal dimming control memory, 8 is a daylight sensor, 15 is a daytime control memory, and 16 is a daytime dimming setting circuit.

Claims (1)

[Claims] 1. A base unit and a number of slave units to which control signals are transmitted from the base unit by a cyclic time division multiplex transmission method, and each slave unit is controlled by the control output of these slave units. In a lighting control device that is equipped with dimmers and uses the output of these dimmers to control the dimming of each corresponding lighting load, a daylight control device that detects when the illuminance of outside light has exceeded a certain level A sensor, a daytime control memory that stores information for each lighting load as to whether or not it is controlled dependently on the operation of the daylight sensor, and a daytime control memory that outputs a signal with dimming control information for a fixed amount of dimming. A dimming setting circuit section, a pattern switch that sets various dimming patterns for each lighting load, and a normal dimming control that stores dimming control information regarding dimming control for each lighting load in each of these dimming patterns. A memory is provided in the main unit, and when the daylight sensor is not operating, each dimmer is controlled by the dimming control information for the dimming pattern read from the normal dimming control memory when any pattern switch is operated. A control signal for each is created and transmitted from the base unit to each slave unit using a cyclic time division multiplex transmission method. A signal created from a signal containing the dimming control information of the daytime dimming setting circuit is sent to each dimmer corresponding to each lighting load to be controlled in a dependent manner from the base unit to each slave unit using a cyclic time division multiplex transmission method. A lighting control device characterized by being formed by transmitting data. 2 A base unit and a number of slave units to which control signals are transmitted from the base unit using a cyclic time division multiplex transmission method are provided, and each slave unit is equipped with a dimmer that is individually controlled by the control output of these slave units. However, in a lighting control device that controls the dimming of each corresponding lighting load using the output of these dimmers, a daylight sensor that detects when the illuminance of outside light has exceeded a certain level, and a daylight sensor are used. a daytime dimming control memory that stores dimming control information regarding the amount of dimming for each lighting load, indicating whether or not to reduce the illuminance of each lighting load by a predetermined rate during operation; and a dimming pattern for each lighting load. The base unit is equipped with a pattern switch for setting various settings, and a normal dimming control memory for storing dimming control information regarding dimming control for each lighting load in each of these dimming patterns, and the detection level of the daylight sensor is In the lower non-operating state, when any pattern switch is operated, a control signal for each dimmer is created using the dimming control information in the dimming pattern read from the normal dimming control memory, and the daylight sensor During operation, dimming control information is created in which the illuminance of each lighting load in the dimming pattern read from the normal dimming control memory is reduced by a predetermined rate using the dimming control information in the daytime control memory. A control signal for each dimmer is created based on the dimming control information, and one of the created control signals is transmitted from the base unit to each slave unit using a cyclic time division multiplex transmission method. lighting control device. 3 A base unit and a number of slave units to which control signals are transmitted from the base unit by a cyclic time division multiplex transmission method are provided, and each slave unit is equipped with a dimmer controlled by the control output of these slave units. However, in a lighting control device that controls the dimming of each corresponding lighting load using the output of these dimmers, a daylight sensor that detects when the illuminance of outside light has exceeded a certain level, and a daylight sensor are used. a daytime control memory that stores information regarding control for each lighting load as to whether or not it is subordinately controlled to the operation of the lighting load; and dimming control information regarding dimming control for each lighting load to be subordinately controlled; The base unit is equipped with a pattern switch for setting various dimming patterns, and a normal dimming control memory for storing dimming control information related to dimming control for each lighting load in each of these dimming patterns. When the sensor is not operating, a control signal for each dimmer is created using the dimming control information for the dimming pattern read from the normal dimming control memory when any pattern switch is operated, and the control signal for each dimmer is sent to the parent. The light control information is transmitted from the device to each slave device using a cyclic time-division multiplex transmission method, and when the daylight sensor is operating, the light control information read from the daytime control memory is used to control each light control corresponding to each lighting load to be controlled. The control signal for each light device is created with priority over the control signal based on the dimming control information for the dimming pattern read from the normal dimming control memory, and each dimming corresponding to other lighting loads is created. A control signal for each device is created from the dimming control information in the dimming pattern read from the normal dimming control memory, and each control signal is cyclically time-division multiplexed transmitted from the base unit to each slave unit. A lighting control device characterized in that it transmits data using a method.