JPH0128473B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a light control device with a clock that is embedded in, for example, a wall surface and controls the light of a lighting fixture.

[Background technology]

Conventional light control devices with a clock simply integrate a light control device and a clock, do not cooperate with each other, and have low added value.

[Purpose of the invention]

An object of the present invention is to provide a light control device with a clock that has high added value.

[Disclosure of the invention]

The light control device with a clock of the present invention detects every hour on the hour from the time obtained from the clock body using the time signal circuit, and forcibly changes the count value added from the second counter to the coincidence detection circuit for a moment. That's what I do.

According to the configuration of the present invention, the count value added from the second counter to the coincidence detection circuit is forcibly changed every hour on the hour, so the brightness of the lighting equipment is instantaneously changed every hour on the hour. It is possible to notify that it is the hour on the hour by changing the illuminance of the lighting equipment without providing any special notification means, and it is possible to increase added value.

Embodiment A first embodiment of the present invention will be described based on FIGS. 1 to 5. FIG. 1 shows a circuit diagram of this light control device with a clock. In FIG. 1, a phase control element 44 consisting of a bidirectional three-terminal thyristor
is a power supply circuit 47 that performs phase control to adjust (dimmer) the amount of power supplied from the AC power supply 45 to the lighting equipment 46;
are diodes 47a, 47b, Zener diode 47c, capacitor 47d, and resistor 47e.
A constant DC voltage is obtained from the AC power supply 45.

The zero cross detection circuit 48 includes an inverter 48
a, 48b, capacitors 48c, 48d, resistor 4
8e, 48f, OR gate 48g, resistance 48h,
48i and a transistor 48j, it detects the zero cross of the voltage of the AC power supply 45 (FIG. 5A) and generates a zero cross detection signal as shown in FIG. 5B (generates a pulse at the time of zero cross).

Oscillation circuit 4 consisting of an astable multivibrator
9 is an inverter 49a, 49b, a resistor 49c,
49d, variable resistor 49e and capacitor 49f
It is reset at the zero-phase timing by the zero-cross detection signal of the zero-cross detection circuit 48, and generates ten periodic pulses every half cycle of the AC power supply 45.

The preset up/down counter 50 sets the preset value to 1010 by the preset value setting circuit 51.
(binary), that is, 10 (decimal), and is fixed to down count, and is reset every half cycle by the zero cross detection signal of the zero cross detection circuit 48 to return to the preset value. Then, the output pulse of the oscillation circuit 49 is counted down, and the output terminal
From Q ₃ to Q ₀ , 10, 9, 8... (decimal) signals are repeatedly output as binary signals at equal intervals.

The coincidence detection circuit 52 connects the input terminals A ₃ to _{A 0} to the output terminal Q ₃ of the preset up-down counter 50.
~ The binary count value output from Q ₀ is added, and this binary count value is input to the input terminal B ₃ ~
Binary data given to B ₀ (data for dimming)
When they match, an "H" output is generated as shown in FIG. 5C, and this "H" output causes the resistors 53a,
Trigger circuit 53 consisting of transistor 53b and resistor 53c is activated to fire phase control element 44. In this case, the ignition phase of the phase control element 44 is delayed as the value of the binary data applied to the input terminals B ₃ to B ₀ becomes smaller, and the dimming of the lighting fixture 46 becomes deeper.

The preset up/down counter 55 counts the pulse signal clk and generates binary data from the output terminals Q ₃ -Q ₀ to be applied to the input terminals B ₃ -B ₀ of the coincidence detection circuit 52. The preset value of the preset up-down counter 55 is the preset value of the latch 5.
The latch 56 stores the binary data of _the preset up-down counter ₅₅ by turning on the memory switch 57 and creating a voltage across the resistor 58. On the other hand, the up-down switching of the preset up-down counter 55 is performed by AND gates 59a, 59b and NOR gates 59c, 5.
When the binary data is 0000 (binary), that is, 0 (decimal), the AND gate 59a becomes "H", and when the binary data is 1010 (binary), that is, 10 (decimal), the AND gate 59a becomes "H". gate 59
b becomes “H” and these AND gates 59
The flip-flop 59 is activated by the outputs of a and 59b.
c, 59d are set and reset, and the preset up/down counter 55 counts up when the binary data reaches 0000 (binary) and counts down when the binary data reaches 1010 (binary). Switch to . Further, the preset up-down counter 55 is activated when the playback switch 60 is turned on and the resistor 6 is turned on.
When a voltage is generated at 1 and an "L" input is applied to the OR gate 62, it is reset, and the value preset by the latch 56 is output as binary data from the output terminals _Q3 to _Q0 . Further, a pulse signal applied to the preset down counter 55 is provided by a pulse generating circuit 41 comprising a clock circuit 63 and a frequency dividing circuit 64. The above clock circuit 6
3 consists of resistors 63a, 63b, Zener diode 63c, inverter 63d, and touch switch 63e, and a power frequency voltage is induced only when a human body or the like is touching touch switch 63e, and the slicer function of resistors 63a, 63b and Zener diode 63c is activated. converts the power frequency voltage into a rectangular wave. Further, the frequency dividing circuit 64 divides the frequency of the rectangular wave signal from the clock circuit 63 by, for example, 1/32 (in the range of 0.5 Hz to 5 Hz) and applies it to the preset up/down counter 55. When the human body or the like moves away from the touch switch 63e, the generation of the square wave stops and the preset up/down counter 55
stops increasing or decreasing the count value, and continues outputting the current count value as binary data.

The watch body 65 uses a power frequency signal as a synchronization signal, and as shown in FIG. 2, a waveform shaping circuit 65a and a frequency dividing circuit 65 generate a clock signal from the power frequency.
b. Comprised of a clock calculation circuit 65c, a decoder 65d, and a driver 65e, it displays the time on a display 66 made of a fluorescent display tube, generates a timer set signal at the set time (timer set time), and uses this timer set signal to control the inverter. 67
Then, the preset up-down counter 55 is reset through the OR gate 62, and the ignition phase of the phase control element 44 is set to the value preset by the latch 56, so that the luminaire 46 is dimmed to a predetermined state. The time and timer settings of the watch body 65 are performed by turning on the time setting switches 68 and 69.

The decoder driver circuit 70 includes exclusive OR gates 70a and 70b, a BCD-7 segment decoder 70c, and a driver 70d, and displays the binary data output from the output terminals Q ₃ to _{Q 0} of the preset up/down counter 55 on the display 66. indicate. In this case, switching between the time display and dimming amount display on the display 66 is performed by the clock circuit 6.
3 through the diode 71, capacitor 72, resistor 73, and inverters 74 and 75 to the driver 65e and driver 70d of the watch body 65.
This is done by adding . That is, during the period when a human body or the like touches the touch switch 63e to perform a dimming operation, the output of the inverter 74 becomes "L" and the output of the inverter 75 becomes "H", so that the driver 70d is enabled to output. As soon as this happens, the clock body 65 becomes unable to output, and the display 66
The amount of light control is displayed, and when the human body etc.
Even after moving away from 3e and stopping the dimming operation, the dimming amount is displayed for a period until a predetermined time determined by the capacitor 72 and the resistor 73 has elapsed. During periods other than the above, the output of the inverter 74 is "H" and the output of the inverter 75 is "L", so
At the same time as the driver 70d becomes unable to output, the clock main body 65 becomes able to output and the time is displayed on the display 66. The drivers 65e and 70d are each composed of two resistors 78, 79 and two transistors 76, 77 of different polarity, whose emitters are commonly connected as shown in FIG. are an input terminal, an output terminal, and a control signal input terminal, respectively.

The time signal circuit 83 includes resistors 83a, 83b, NAND gate 83c, diodes 83d, 83e, 83
f, a resistor 83g, an AND gate 83h, a capacitor 83i, a resistor 83j (which together with the resistor 83i form a differentiating circuit), and an exclusive OR gate 83k, and is normally connected to the output terminal _Q2 of the preset up/down counter 55 as a coincidence detection circuit. 5
The signal applied to the input terminal _B2 of 2 is passed through as it is, and when the hour reaches 00 minutes, the differentiating circuits 83i, 8
3j for a moment from output terminal Q ₂ to input terminal B ₂
By inverting the signal given to the match detection circuit 52, the binary data given to the coincidence detection circuit 52 is momentarily changed, the brightness of the lighting fixture 46 is forcibly changed, and the time of every hour is notified. However, this time signal circuit 83
is configured such that it does not operate when the output of the inverter 75 is operating the dimming operation, that is, when the display 66 is displaying the dimming amount (0 to 10).

FIG. 4 shows an external perspective view of this light control device with a clock. In the figure, a case 84 incorporates circuit components. The touch plate 85 corresponds to the touch switch 63e in FIG. 1, and can be used to adjust the light just by touching it, and when touched, switches from displaying the time to displaying the amount of dimming. The clock display section 86 is the display device 66 in FIG.
Normally, the time is displayed digitally, and when the touch plate 85 is touched or the brightness call button 87
When pressed, the amount of light control is displayed, and when these operations are completed, the display automatically switches to the time display, and also indicates the installation location in a dark place. Brightness call button 87
is used to operate the playback switch 60 shown in Fig. 1. When pressed, the current brightness changes to the pre-stored brightness, and the dimming amount is displayed on the clock display section 86 for about 1 second. let Although the circuit configuration for performing this operation is not shown in FIG. 1, it can be easily realized by applying the ON output of the reproduction switch 60 to the drivers 65e and 70d for a certain period of time.

The brightness storage button 88 operates the memory switch 57 in FIG. 1, and when pressed, the brightness at that time is stored. Time setting button 89, 90
are the time setting switches 68 and 6 in Fig. 1, respectively.
9. Lift the knob of the timer set lock switch 91 to set the timer and release the lock, then press the time setting buttons 89 and 9.
By operating 0, the lamp, which is the lighting fixture 46, can be turned on at a predetermined time with the stored brightness.

In this way, this dimmer with a clock is configured to forcibly change the count value added from the preset up-down counter 55 to the coincidence detection circuit 52 every hour on the hour, so that the light is turned on every hour on the hour. The brightness of the fixture 46 can be changed instantaneously, and the fact that it is on the hour can be notified by changing the illuminance of the lighting fixture 46 without the need for special notification means, and added value can be increased. .

Also, at the preset time, the lighting equipment 4
6 can be adjusted to a preset brightness, and in this respect as well, added value can be increased.

Further, a latch 56 is provided to hold the count value of the preset up-down counter 55 in response to the operation of the memory switch 57.
Since the configuration is such that the data held in the latch 56 is preset in the preset up-down counter 55 in response to the operation of
By operating the playback switch 60, the light can be preset to the set value by operating the playback switch 60, no matter what dimming state the lighting fixture 46 is in.
The lighting equipment 46 can be rapidly changed to a preset dimming amount.

Further, since the amount of light adjustment is displayed in response to the light adjustment operation, and the time is displayed during other periods, the display 66 can be used without waste. Also,
Even in a dark place, the installation location can be confirmed by the light emitted from the display 66.

A second embodiment of the invention will be described based on FIG. This light control device with a clock supplies the zero-cross detection signal of the zero-cross detection circuit 48 to the clock main body 65 as a clock signal, and the waveform shaping circuit 65a is omitted.

The dimming data providing circuit 92 is a combination of the preset up-down counter 55 and the circuits preceding it.

In this way, this light control device with a clock controls the light control section and the clock section with a single clock signal, so the number of clock signal generation circuits (waveform shaping circuit 65a) can be reduced by one. It is possible to simplify the circuit configuration and reduce costs.

〔Effect of the invention〕

According to the clock-equipped light control device of the present invention, the count value added from the second counter to the coincidence detection circuit is forcibly changed every hour on the hour, so that the brightness of the lighting equipment is changed every hour on the hour. It is possible to change the brightness instantaneously, and it is possible to notify that it is the hour on the hour by changing the illuminance of the lighting equipment without providing any special notification means, thereby increasing added value.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of a clock-equipped light control device according to a first embodiment of the present invention, and FIG. 2 is a block diagram of its main parts.
FIG. 3 is a circuit diagram of the main parts, FIG. 4 is a perspective view of its appearance, FIG. 5 is a signal waveform diagram of each part to explain its operation, and FIG. 6 is a second diagram of the present invention. FIG. 2 is a block diagram of an embodiment. 41... Pulse generation circuit, 44... Phase control element, 45... AC power supply, 46... Lighting equipment, 48
... Zero cross detection circuit, 49 ... Oscillation circuit, 5
0...Preset up/down counter, 52...
...Coincidence detection circuit, 53...Trigger circuit, 55...
Preset up/down counter, 56... Latch, 57... Memory switch, 60... Playback switch.

Claims (1)

[Claims] 1. A phase control element inserted between an AC power source and a lighting fixture, a zero cross detection circuit that detects a zero cross of the voltage of the AC power source and generates a zero cross detection signal, and a zero cross detection circuit that detects a zero cross of the voltage of the AC power source and generates a zero cross detection signal; an oscillation circuit that is reset at the zero phase of the AC power supply voltage and generates a periodic constant number of pulses every half cycle of the voltage of the AC power source; a first counter that counts output pulses; a pulse generation circuit that generates pulses only when a switch is operated; a second counter that counts pulses output from the pulse generation circuit; a coincidence detection circuit that compares the count value with the count value of the second counter and generates a coincidence detection output when the two match; and a coincidence detection circuit that fires the phase control element in response to the coincidence detection output of the coincidence detection circuit. a trigger circuit for detecting the hour, a watch body, a display for displaying the time obtained by the watch body, and a coincidence detection circuit that detects every hour on the hour from the time obtained by the watch body and detects the coincidence detection circuit from the second counter. A dimmer with a clock equipped with a time signal circuit that forcibly changes the count value added to the clock for a moment.