JP2605100Y2 - Output control device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output control device for controlling the outputs of a plurality of loads and making the outputs of the loads uniform.

[0002]

2. Description of the Related Art FIGS. 6 to 9 show a conventional output control device 1.
FIG. 1 is a configuration diagram illustrating a first conventional example, in which an output control device 1 includes a lighting fixture 2 as a plurality of loads, a plurality of controllers 3, one operation unit 4, and a signal line 5. It is configured.

[0003] A plurality of lighting fixtures 2 serving as loads are disposed in a distributed manner, and a controller 3 for controlling the output of the lighting fixtures 2 serving as a load corresponding to each of the plurality of lighting fixtures 2 is provided.
Is arranged, and one of the plurality of lighting fixtures 2 that receives a control signal first (load A in FIG. 5)
Is a reference load 2 which is a specific load of the entire output control device 1.
a.

As shown in FIG. 7, a controller 3 transmits and receives a control signal, and a controller 3b which converts a control signal into a dimming signal and performs dimming control of the load 2.
The controller 3 connected to at least the reference load 2a includes an interface unit (I / F) for connecting an operation unit 4 which is an input unit of a control command for the load 2.
) 3c. Further, a sensor 6 for measuring the light output of the lighting fixture 2 as a load is connected to the control units 3b of all the controllers 3. Operation unit 4
Is connected to the controller 3 of the reference load 2a via the two-way signal line 5 and to the lighting fixture 2 as another load via the one-way signal line 5.

[0005] The output control device 1 configured as described above includes:
It operates as shown below. That is, as shown in FIG.
When a control command is input from the operation unit 4, the control unit 3b of the controller 3 connected to the lighting fixture 2a as a reference load converts the control command into a dimming signal f1 and dims the lighting fixture 2a as a reference load. The control is performed, the output is measured by the sensor 6, and the measured value L1 is input to the control unit 3b. At this time, the controller 3 outputs the output value L
1 as a control signal, and the signal is transmitted to the second
Is transmitted to the controller 3 connected to the lighting equipment 2 of the next stage, which is the load of. Therefore, the controller 3 at the next stage which has received the signal converts the signal into a dimming signal, controls the output of the lighting fixture 2 connected thereto via the control unit 3b, and controls the lighting fixture connected thereto. The output of the luminaire 2 is measured by the sensor 6, and finally, the output L2 of the luminaire 2 connected to itself by the dimming signal f2 is converted to the first luminaire 2
Is approximately equal to the output L1. After that, the output L1 sent from the reference load 2a is transmitted as a control signal to the controller 3 (lighting fixture 2) of the next stage, and the output of the lighting fixture 2 which is a load below is sequentially transmitted to the reference fixture 2a. , The light output of each lighting fixture 2 is adjusted to the output L1 of the reference load 2a, and the output of each load 2 is made uniform.

FIG. 10 is a block diagram showing another conventional output control device 1 (second conventional example).
Lighting equipment 2 as a plurality of loads and a plurality of controllers 3
And two operation units 4 and a signal line 5.

[0007] A plurality of lighting fixtures 2 serving as loads are distributed and arranged in the same manner as in the first conventional example.
A controller 3 for controlling the output of the luminaire 2 which is a load is connected to each of the controllers, and all the controllers 3 are provided with a signal transmitting / receiving unit 3a for transmitting / receiving a control signal, and a control signal for a dimming signal. In addition to the control unit 3b that converts the light into a dimming control of the load 2, an interface unit (I / F unit) for connecting the operation unit 4 that is an input unit of the control command of the load 2 is provided. Further, a sensor 6 for measuring the light output of the lighting fixture 2 as a load is connected.
For this reason, the operation unit 4 can be connected to any one of the plurality of controllers 3 or any number of controllers at the same time.
0, load A and load B, which are arbitrary two loads,
1 illustrates an output control device 1 in which an operation unit 4 is connected to an I / F unit of the controller 3. Each controller 3 is sequentially connected in a loop by a signal line 5, and a signal is transmitted on the signal line 5 in a direction indicated by an arrow in FIG.

In the output control device 1 configured as described above, for example, when a control command is given from the operation unit 4 connected to the load A, which is one operation unit shown in FIG. A control command is transmitted to the appliance 2, and the output of the load 2 is controlled via the control unit 3b as in the first conventional example. At this time, the load connected to the operation unit 4 to which the control command has been input becomes the reference load 2a, and the output L1 of the luminaire 2 connected to itself is measured by the sensor 6, and is measured by the sensor 6. The output L1 is sent as a control signal to the next controller (lighting fixture 2), and the outputs of all the lighting fixtures 2 connected to the second and third lighting units are sequentially referred to in the same manner as in the first conventional example. By controlling the output of each load 2 to be substantially equal to the output L1 of the reference load 2a, the output of each load 2 is equalized.

[0009]

However, in the conventional output control device 1 configured as described above, FIG.
When the output of the load 2 to be controlled is lower than the output L1 of the reference load 2a, the output of the load 2 to be controlled cannot be adjusted to the output L1 of the reference load 2a, as shown in the load D of FIG. However, there is a problem that the output of each load 2 cannot be made uniform. Particularly, when the load 2 is a lighting fixture and is used in a place where uniformity of illuminance is important,
This problem has been particularly prominent in the case of a difference in the characteristics of the light source of the lighting fixture 2 as a load, a decrease in the luminous flux, and a case where the light source of the reference fixture 2a has been replaced and the luminous flux has become larger than other fixtures. .

The present invention has been made to solve such a problem, and an object of the present invention is to provide an output control device for making the outputs of a plurality of loads substantially uniform regardless of the characteristics of the loads. To provide.

[0011]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a device according to the first aspect, wherein a plurality of loads 2 and a plurality of loads 2 are provided corresponding to the respective loads 2. A sensor 6 for monitoring the output of the load 2 and a sensor 6 provided for each load 2
And a signal transmitting / receiving unit 3a.
The controller 3 controls the load 2 in response to the control signal and sends out a control signal for controlling the output of another load 2.
A signal line 5 that sequentially connects the controllers 3 in a loop, and an operation unit 4 that is connected to at least one of the controllers 3 and that inputs a control command for the load 2. 4 by the control command from the load 2
An output control device 1 for transmitting the output of the controller 3 as a control signal, wherein the controller 3 is provided with a comparison operation unit 3d,
The output level of the control signal is compared with the actual value of the output measured by its own sensor, and the lower value is sent to the next controller 3 as a control signal.

In the invention according to claim 2, the output control device 1 is provided with a storage unit 3e for storing the output lower limit value of the load 2, and the storage unit 3e stores a predetermined output lower limit value. At the same time, the output lower limit value is compared with the actually measured value of the output measured by the own sensor 6, and when the actually measured value of the output of the load 2 falls below the output lower limit value, the output falls below the lower limit value. The load 2 is excluded from the control targets.

Further, in the invention according to the third aspect, the output control device 1 is provided with a display unit 7 for the load 2 which is lower than the output lower limit value.

[0014]

According to the present invention, a sensor 6 for monitoring the output of each load 2 corresponding to each load 2 is provided to control each load 2. with connecting the controller 3 with the signal line 5 in a loop to the comparison operation unit 3d provided in the controller 3 compares the actual measurement value measured by the output and self sensors 6 control signal, lower value next controller as a control signal
3, the outputs of all the loads 2 are controlled in accordance with the output of the load 2 having the lowest output among all the loads 2 of the output control device 1, and all the outputs are not affected by the characteristics of the load 2. The output of the load 2 can be made uniform.

According to the invention of claim 2, the output control device 1 is provided with a storage section 3e for storing the output lower limit value of the load 2, and the storage section 3e stores a predetermined output lower limit value. At the same time, the output lower limit value is compared with the actual measured value of the output measured by the own sensor 6, and when the actual measured value of the output of the load 2 falls below the output lower limit value, the load lower than the output lower limit value is outputted. 2 is excluded from the control targets, so that in addition to the effect of the invention described in claim 1, an effect that output control excluding the abnormal load 2 becomes possible is also achieved.

Furthermore, in the invention according to claim 3, the output control device 1 is provided with a display section 7 for the load 2 that is lower than the output lower limit value. In addition, the abnormal load 2 can be easily identified, and the maintenance of the output control device 1 can be easily performed.

[0017]

1 to 3 show a first embodiment of an output control device 1 according to the present invention. The difference from the second conventional example is a controller 3 and its operation. Otherwise, the configuration is the same as that of the second conventional example.

That is, the output control device 1 comprises a plurality of luminaires 2 which are loads, a controller 3 which is provided corresponding thereto and controls the output Ln of the luminaire 2 which is each load, and And a signal line 5 for connecting the two in a loop, and two operation units 4 connected to an arbitrary controller 3. The controller 3 includes a signal transmission / reception unit 3a that transmits and receives a control signal, and a control unit 3b that converts a control signal into a dimming signal and performs dimming control of the load 2.
And an interface unit (I / F unit) 3c for connecting an operation unit 4 for inputting various control commands,
The control unit 3b is configured to include a comparison operation unit 3d for comparing an output transmitted from the lighting fixture 2 as another load with its own actual output.
Is connected to a sensor 6 for measuring the light output.

The output control device 1 configured as described above includes:
It operates as shown below. That is, as shown in FIG. 3, when a control command is input from one operation unit 4, the lighting fixture 2 connected to the operation unit 4 becomes the reference load 2a,
The control unit 3b of the controller 3 connected thereto converts the control command into a dimming signal f1, performs dimming control of the lighting fixture 2a, which is a reference load, measures the output L1 by the sensor 6, and performs the measurement. The value L1 is input to the control unit 3b.
At this time, the controller 3 as a control signal the output value L1, and transmits the signal via a signal line 5 to the next stage of the controller 3 (luminaires 2). Then, the controller 3 of the next stage which has received the signal converts the signal into a dimming signal, performs dimming control and output measurement of the lighting fixture 2 connected to itself, and finally, adjusts the dimming signal f2. By
The output L2 of the luminaire 2 connected to the self substantially is equal to L1, the output L1 of the reference load 2a, sent to the third controller 3 of the luminaire 2 of the next load C as a control signal
Put out . The same dimming control is performed in the third lighting fixture 2, and similarly, the output control of all the lighting fixtures 2 is similarly performed.

However, here, for example, shown in FIG.
Thus, the output L of the third lighting fixture 2 can be controlled in any manner.
3 does not reach L1, that is, even if the output L3 is at maximum
When the output is lower than the control signal output L1, the comparison operation unit 3d
The output L1 and the output L3 are compared, and the lower output is
L3 is replaced with L1 as a control signal and the next load D
To the controller 3 of the lighting fixture 2SendingI do. Less than,
The output of the lighting fixture 2 which is each load is controlled in sequence, and
Until the returned signal returns to the controller 3 (in FIG. 3,
Is the control of the third lighting fixture 2 where L3 is the load C.
T until it returns to la 3), each load of the output control device 12
Are sequentially output controlled according to the loop of the signal line 5,
The outputs of all the loads 2 of the output control device 1
No load C is matched to the output L3 of the third lighting fixture 2
It is.

That is, in the second lighting apparatus 2 which is the load B, first, the reference output level L1 is received as a control signal, and its output is once controlled to be substantially equal to L1 by the dimming level f2. L1 is output as a control signal to the load C, which is the lighting fixture 2 of the stage. Next, after the loads C to A are successively subjected to dimming control, the load C receives the reference output level L3 changed by the load C, and is adjusted. The light is adjusted again by the light level f2r, and its output is set to approximately L3. The output L3 is output as a control signal to the third lighting fixture 2, which is the load C at the next stage. Then, the third lighting fixture 2 which is the load C at the next stage which has received the control signal determines that the signal has been generated by the controller 3 itself, deletes the signal, and controls the output. The output control of the lighting fixture 2 which is all the loads of the device 1 ends. The output actually measured by the sensor 6 may be the illuminance or the luminous flux as illustrated, provided that the position and the size of the sensor 6 are the same.

As described above, the output control device 1 according to the present embodiment is provided with the sensor 6 for monitoring the output of each load 2 corresponding to each load 2, and the controller 3 for controlling each load 2 is connected to the signal line 5. And a controller 3d is provided with a comparison operation unit 3d, which compares the output value of the control signal with the actual measurement value measured by its own sensor 6, and uses the lower value as a control signal in the next stage. The output of all the loads 2 sent to the controller 3 is controlled in accordance with the output of the load 2 having the lowest output among all the loads 2 of the output control device 1, and the characteristics of the load 2 The output of all the loads 2 can be equalized without being affected.

FIGS. 4 and 5 show the output control device 1 of the present invention.
The second embodiment according to the present invention is different from the second conventional example in the operation of the storage unit 3e and the display unit 7 provided in the controller 3 and the operation of the controller 3 associated therewith. The configuration is the same as that of the first embodiment.

The storage unit 3e stores the control unit 3 of the controller 3.
b, a predetermined lower limit value _Lmin of a predetermined output is stored. As shown in FIG. 5, when controlling the output of the lighting fixture 2 as a load, the output Ln of each load 2 is controlled. Is compared with the lower limit _Lmin , an output below the lower limit _Lmin is regarded as an abnormal value, and the output is prevented from being output as a control signal to another load 2 and an output below the lower limit _Lmin is output. The load 2 shown is excluded from the target of the output control, and the output of the remaining load 2 is controlled so as to be equalized sequentially. The control unit 3b is connected to a display unit 7, such as an LED, for displaying an abnormality of the load, and displays an output below the lower limit _Lmin.
Is abnormally displayed, for example, by blinking an LED or the like.

[0025] In the present embodiment this manner, the storage unit 3e provided in the output control device 1, along with storing the predetermined output lower limit value L _min, the output lower limit in the comparison operation unit 3d value L
_min is compared with the actual measured value of the output measured by its own sensor 6, and the actual measured value Ln of the output of each load 2 is determined as the output lower limit L
_When the load is lower than _min , the load 2 that is lower than the output lower limit _Lmin is excluded from the control targets. Therefore, in addition to the effect of the first embodiment, output control excluding the abnormal load 2 can be performed. At the same time, abnormalities are detected, and the abnormal lighting equipment 2
Can be displayed, the maintenance of the output control device 1 becomes easy.

In each of the above embodiments, an example in which four lighting fixtures are used as loads and light output is controlled as the output is described. However, the present invention is not limited to this, and the number of loads is not limited. And the load is not limited to the lighting equipment. Further, in the second embodiment, description has been made by exemplifying the case where the storage unit is provided in the controller. However, the present invention is not limited to this, and the storage unit is provided in the operation unit. Of course, it may be possible.

[0027]

Since the output control device of the present invention is constructed as described above, according to the present invention, there is provided a sensor for monitoring the output of each load corresponding to each load. and setting, as well as connected in a loop in the controller a signal line for controlling each load, a comparison operation unit provided in the controller, compared with the measured value measured by the output and its sensor control signals, lower Of the next stage as a control signal
Since the output of all loads is sent to the controller , the output of all loads is controlled according to the output of the load with the lowest output among all loads of the output control device, and the output of all loads is not affected by the load characteristics. Uniformity can be achieved.

In the invention according to claim 2, the output control device is provided with a storage unit for storing the output lower limit value of the load, and the storage unit stores the predetermined output lower limit value and the output lower limit value. Compare the value and the measured value of the output measured by its own sensor, if the measured value of the output of the load is less than the output lower limit, because the load below the output lower limit was excluded from the control target, In addition to the effect of the invention described in claim 1, there is also an effect that output control excluding an abnormal load can be performed.

Further, in the invention according to the third aspect, the output control device is provided with a display section for a load which is lower than the output lower limit value, so that in addition to the effect of the invention according to the second aspect, The abnormal load can be easily identified, and the output control device can be easily maintained.

[Brief description of the drawings]

FIG. 1 is a main part block diagram showing a first embodiment of an output control device according to the present invention.

FIG. 2 is a configuration diagram of the above.

FIG. 3 is an explanatory diagram showing the operation of the above.

FIG. 4 is a main part block diagram showing a second embodiment of the output control device according to the present invention.

FIG. 5 is a flowchart illustrating the operation of the above controller.

FIG. 6 is a configuration diagram showing a conventional output control device (first conventional example).

FIG. 7 is a main part block diagram of the above.

FIG. 8 is an explanatory diagram showing the operation of the above.

FIG. 9 is an explanatory diagram showing another operation of the above.

FIG. 10 is a configuration diagram showing another conventional output control device (second conventional example).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Output control device 2 Load 3 Controller 3a Signal transmission / reception part 3d Comparison calculation part 3e Storage part 4 Operation part 5 Signal line 6 Sensor 7 Display part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-56-118294 (JP, A) JP-A-4-190589 (JP, A) JP-A 6-70390 (JP, U) JP-A 5- 72094 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 9/00 301 H04Q 9/00 311 H04Q 9/00 321 H05B 37/02

Claims (3)

(57) [Scope of request for utility model registration] 1. A plurality of loads, a sensor provided for each of the loads and monitoring an output of each of the loads, and a sensor for each of the loads.
A signal transmission / reception unit, which receives a control signal to control a load, and
A controller for sending a control signal for controlling the output of the
A signal line for sequentially connecting the controllers in a loop, and at least one operation unit connected to the controller and inputting a control command for the load, wherein the control unit receives a control command from the operation unit. An output control device for transmitting an output of a specific load among loads as a control signal, wherein the controller is provided with a comparison operation unit, and the output of the received control signal and the actually measured value of the output measured by its own sensor are provided. In addition to the comparison, the lower output value of the compared outputs is used as a control signal for the next controller.
An output control device, wherein the output is transmitted . 2. The output control device according to claim 1, further comprising: a storage unit configured to store an output lower limit value of the load. The storage unit stores a predetermined output lower limit value, and the output lower limit value is measured by a sensor of the output control device. Compared with the measured value of the output, when the measured value of the output of the load is less than the output lower limit,
2. The output control device according to claim 1, wherein a load lower than the output lower limit value is excluded from control targets. 3. The output control device according to claim 2, wherein the output control device includes a display unit for displaying a load that is lower than the output lower limit value.