JPH085501Y2 - Dimming remote setting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a dimming remote setting device in which a setting device and a control circuit in a dimming facility such as a planetarium control device are separated.

[Conventional technology]

A block diagram of a conventional dimming remote setting device of this type is shown in FIG.
Shown in the figure.

In FIG. 4, the dimming data set in the digital setter 24 for all-point lighting and the digital setter 25 for half-point lighting are data by wiring 26-1 to 26-n and wiring 27-1 to 27-n, respectively. It is sent to the selector 1. This data selector 1 selects the data from the digital setting device 24 for all lighting by the clock Φ2 from the clock generator 8, and the clock Φ3
The data from the half-point digital contactor 25 is selected by. The clock waveform from the clock generator 8 is shown in FIG. 3, and the clock Φ1 from the clock generator 8 is counted by the counter 7. Data selector 1 to clock Φ2,
The setting data for all lights of the digital setting device 24 for all lights and the setting data for half lighting of the digital setting device 25 for half lighting are selected by Φ3 and output as the count data of the counter 7 by the comparator 2, respectively. It is compared sequentially. The comparator 2 is
In the case of setting data for all lights or setting data for half lights (A in the comparator 2)> count data (B in the comparator 2), the clock Φ from the clock generator 8 respectively.
If, for example, a logical signal "1" is output to the inputs of the data holders 3 and 4 with 20, Φ30 as the trigger input signal, and the setting data A for all lighting or the setting data A for half lighting <count data B,
For example, a logical signal “0” is output to the inputs of the data holders 3 and 4. The data holders 3 and 4 hold “1” and “0” output from the comparator by the clocks Φ20 and Φ30, and hold the held “1” and “0” through the inverters to the transistors 5 and 6, respectively.
Applied to the base of. When the output of each data holder 3 and 4 is "1", the transistors 5 and 6 are turned on. When the output of the data holder 3 and 4 is "0", the transistors 5 and 6 are turned off.
To do. The transistors 5 and 6 are connected to the power source 2 via the light emitting element 21.
3 is connected in series, and a switch 22 is connected in parallel between the collector and emitter of the transistor 6.
When is turned on, the transistor 6 is short-circuited to be in a full lighting state, and when turned off, the transistor 6 is connected in series with the transistor 5 and is in a half lighting state.

Here, if the setting data for all lighting is A0 and the setting data for half lighting is B0, each data is set to A0> B0, and A0, B0 <N (counter 7 is reset). Numeric value) is set. Clock Φ1 of clock generator 8
The cycle T in which the count value of the counter 7 that counts is N is shown in FIG. 2 and is defined as N × [cycle of Φ1] = cycle T. ON
The period (τ1 shown in FIG. 2) during which the signal to output is output is
It is longer than the period (τ2 shown in FIG. 2) during which the signal for turning on the transistor 6 is output from the data holder 4. As a result, when the switch 22 is turned off, the light emitting element 21 is turned on only during the period τ2 due to the AND condition of the transistors 5 and 6, and when the switch 22 is turned on, the transistor 5 is turned on. It lights up during the period τ1. Therefore, τ
Dimming is performed by setting 1 and τ2 appropriately.

In addition, setting data A0 for all lighting and setting data B0 for half lighting
When A0 <B0 is set, the period of τ1 becomes shorter than the period of τ2, and the full lighting state cannot be obtained. Therefore, the setting data for all lighting A0 and the setting data for half lighting B0 cannot be set. A0
> B0 is set.

[Problems to be solved by the device]

In the remote control device for dimming described above, since the digital setter is used to set the setting data for all lighting and the setting data for half lighting, the number of bits according to the setting accuracy is required and the digital setting device is controlled. When installed at a location remote from the circuit, the wiring from the digital setter to the control circuit (wiring 26-1 to 26-n, 27-1 to 27- in Fig. 4)
The cost of n) increases, and it has a drawback that it is erroneously set due to the influence of electromagnetic noise depending on the surrounding environment. Also, when dimming all lights / half lights, the setting data for all lights and the setting data for half lights are set individually by the digital setters 24 and 25. Each time, the operator sets the setting data for all lighting>
It has a drawback that the operability is poor because the settings must be made so that the relationship of the half-lighting setting data is maintained.

Therefore, the object of the present invention is to eliminate the above-mentioned drawbacks of the conventional device, and to minimize the number of wires between the setting device and the control circuit even if the setting device is installed in a remote place, and yet to use one external device. It is an object of the present invention to provide a dimming remote setting device that enables a plurality of dimming controls by a setting device.

[Means for solving the problem]

In order to achieve the above-mentioned object, the present invention provides an analog setting device for all lighting which outputs an analog voltage signal installed in a remote place, a time constant circuit composed of resistors and capacitors, a buffer amplifier, an analog / digital converter, and An all-spot command circuit composed of a data holder, and an analog setting device and a resistor for setting the data of an arbitrary ratio of all-spot command voltage from the buffer amplifier in this all-spot command circuit as a half-lamp command voltage .A half-lighting command circuit composed of a time constant circuit composed of a capacitor, a buffer amplifier, an analog / digital converter and a data holder, and connected to the respective data holders of the full-lighting command circuit and the half-lighting command circuit The selected digital data in each of the data holders is selected and output based on the clock pulse from the clock generator. A data selector, a comparator for comparing the output data from the counter that counts the clock pulses from the clock generator with the digital data from the data selector, and the output of this comparator controls the opening and closing of each, and emits light. It is characterized in that a transistor switch connected in series to the element and a switch means for short-circuiting / opening one of the transistor switches are provided.

[Action]

In this invention, the setting data of the all-lighting command circuit is set as the all-lighting command voltage of the analog signal by the all-lighting analog setting device installed at a remote place. On the other hand, for the half-lighting command voltage of the half-lighting command circuit, the analog setter of the half-lighting command circuit sets the data of an arbitrary ratio of the all-lighting command voltage from the buffer amplifier in the all-lighting command circuit as the half-lighting command voltage. With this configuration, if the all-lighting command voltage is set by the all-lighting analog setting device, it is automatically set. When one of the transistor switches is short-circuited / opened by short-circuiting one of the transistor switches, the conduction angle of the light-emitting element is increased and all the light is turned on. When one of the transistor switches is opened by the switch means, the light-emitting element is conducted. The corner becomes smaller and it becomes a half-lighting state.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the dimming remote setting device of the present invention, and FIG. 2 is a waveform diagram of a main part of FIG. In FIG. 1, the same parts as those of the conventional device shown in FIG. 4 are designated by the same reference numerals, and the description thereof will be omitted. Differences from FIG. 4 will be described.

In FIG. 1, 19 is an analog setter that replaces the two digital setters 24 and 25 as the external setters of the conventional device shown in FIG. Are installed in remote areas. The analog signal set by this analog setting device 19 is
It is supplied to the buffer amplifier 13 via a time constant circuit composed of a capacitor 18 and a capacitor 18, and is output from the buffer amplifier 13 as the all-lighting command voltage e ₁ . The all-lighting command voltage e ₁ is supplied to the analog / digital converter 11, where it is digitally converted and then temporarily stored in the data holder 9.
Further, the total lighting command voltage e ₁ is applied to the analog setting device 20, and the analog setting device 20 multiplies the total lighting command voltage e ₁ by an arbitrary ratio (r / R) [= e ₁ × (R / R)] is automatically output. The analog signal output from the analog setter 20 is supplied to the buffer amplifier 14 via the time constant circuit including the resistor 15 and the capacitor 17, and is output from the buffer amplifier 14 as the half-lighting command voltage e ₂ .
This half-lighting command voltage e ₂ is applied to the analog / digital converter 12
Is stored in the data holder 10 after being supplied to the digital converter and digitally converted. The data holders 9 and 10 hold the data from the analog / digital converters 11 and 12 at the rising edge of the clock Φ1 generated by the clock generator 8. Each clock waveform of the clock generator 8 is as shown in FIG. The circuit after the data selector 1 is the same as the conventional circuit shown in FIG. 4, and the description thereof is omitted.

Next, the operation of the embodiment shown in FIG. 1 will be described. When the all-pointing command voltage is set by the analog setting device 19, the analog signal from the analog setting device 19 is passed through the time constant circuit consisting of the resistor 16 and the capacitor 18 to the buffer amplifier.
It is supplied to 13 and is output from the buffer amplifier 13 as the all-lighting command voltage e ₁ . This all-lighting command voltage e ₁ is digitally converted by the analog / digital converter 11 and then held in the data holder 9 by the clock Φ ₁ from the clock generator 8. On the other hand, based on the ratio (r / R) arbitrarily set from the analog setter 20 to which the all-lighting command voltage e ₁ output from the buffer amplifier 13 is applied, [e × (r / R)] Is supplied to the buffer amplifier 14 via a time constant circuit composed of a resistor 15 and a capacitor 17,
A half-lighting command voltage e ₂ is output from this buffer amplifier 14. The half-lighting command voltage e ₂ is digitally converted by the analog / digital converter 12 and then held in the data holder 10 by the clock Φ1 from the clock generator 8.
The data held in the data holders 9 and 10 is the data selector 1
Is supplied to. The operation of the circuit after the data selector 1 is the same as that of the conventional example shown in FIG.

[Effect of device]

As described above, according to the present invention, an analog setting device for all lighting which outputs an analog voltage signal installed in a remote place, a time constant circuit consisting of a resistor and a capacitor, a buffer amplifier, an analog / digital converter. And a data holder, and an analog setter and a resistor for setting data of an arbitrary ratio of the total lighting command voltage from the buffer amplifier in the all lighting command circuit as a half lighting command voltage. Half-pointing command circuit composed of a time constant circuit consisting of a capacitor / capacitor, a buffer amplifier, an analog / digital converter and a data holder, and a data holding device for each of the full-lighting command circuit and the half-lighting command circuit. It is connected and selects and outputs any digital data of the respective data holders based on the clock pulse from the clock generator. A data selector, a comparator for comparing the output data from the counter that counts the clock pulses from the clock generator with the digital data from the data selector, and the output of this comparator controls the opening and closing of each, and emits light. All points capable of continuously changing all lighting command voltages of all lighting command circuits, which are constituted by a transistor switch connected in series to the element and a switch means for short-circuiting / opening one of the transistor switches. By using the analog setting device for lights, if the setting device set at the remote location is a digital setting device, the number of bits corresponding to the setting accuracy is required, which increases the wiring cost. Since it is extremely simple, the wiring cost can be reduced and the risk of disturbance such as electromagnetic noise is reduced. Cormorant has the advantage. Further, since the analog setting device of the half-lighting command circuit is set to set the data of an arbitrary ratio of the total lighting command voltage from the buffer amplifier in the all-lighting command circuit as the half-lighting command voltage, If the full lighting command voltage is set by the all lighting analog setting device of the circuit, the half lighting command voltage is automatically set in the analog setting device of the half lighting command circuit. Therefore, it is not necessary for the operator to set the half-lighting setting data so that the relationship of all-lighting setting data> half-lighting setting data is maintained, and the operator's burden can be reduced and erroneous setting may occur. Instead, there is an advantage that the dimming with a fixed ratio can be easily set.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention,
FIG. 1 is a block diagram of a remote control device for dimming control, and FIG.
FIG. 3 is a waveform diagram in the main part of the figure, FIG. 3 is a waveform diagram of the clock generator in FIG. 1, and FIG. 4 is a block diagram of a conventional dimming remote setting device. 1: Data selector, 2: Comparator, 3, 4, 9, 11: Data holder,
5,6: Transistor switch, 7: Counter, 8: Clock generator, 11, 12: Analog / digital converter, 13, 14: Buffer amplifier, 15, 16: Resistor, 17, 18: Capacitor, 19, 20: analog setting device, 21: light emitting element, 22: switch.

Claims (1)

[Scope of utility model registration request] 1. An analog setting device for all lighting which outputs an analog voltage signal installed in a remote place, a time constant circuit consisting of a resistor and a capacitor, a buffer amplifier, an analog / digital converter and a data holder. Time constant consisting of a full lighting command circuit, an analog setting device that sets the data of an arbitrary ratio of the total lighting command voltage from the buffer amplifier in this all lighting command circuit as a half lighting command voltage, and a resistor / capacitor A half-lighting command circuit composed of a circuit, a buffer amplifier, an analog / digital converter, and a data holder, and a data generator that is connected to each of the full-lighting command circuit and the half-lighting command circuit, and is connected to a clock generator. A data selector for selecting and outputting any one of the digital data of the respective data holders based on the clock pulse of Comparator for comparing the output data from the counter that counts the clock pulse from the clock generator with the digital data from the data selector, and a transistor connected in series to the light emitting element, which is controlled to open and close by the output of the comparator. A dimming remote setting device comprising a switch and switch means for short-circuiting / opening one of the transistor switches.