KR920004569Y1 - Remote control circuit of humidifier - Google Patents

Abstract

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Description

Humidifier remote control circuit

1 is a remote control circuit diagram that the humidification amount is controlled by the sound of the hand of the present invention.

* Explanation of symbols for main parts of the drawings

1: Sound detection sensor 10: Amplifier

20: Band pass filter 30: Ripple counter

40: decoder

The present invention relates to a humidification amount control circuit of the humidifier, and more particularly, to a humidification amount remote control circuit for controlling the humidification amount of the humidifier remotely by sound recognition using a sound (for example, a hand-sound) sensor.

Conventional humidifiers do not have a humidification amount control device or by using a humidification amount control volume in the humidifier to adjust the amount of humidification much and less.

Therefore, when the user wants to change the humidification amount of the humidifier, the user goes to the place where the humidifier is adjusted by using the humidification amount adjusting volume.

Such a conventional humidification amount control has a humidifier is installed remotely, or particularly in patients with uncomfortable behavior, the humidification amount was quite uncomfortable.

Therefore, an object of the present invention is to provide a humidification amount control circuit that installs a sound recognition sensor in the humidifier, and the sound sensor recognizes the beating sound signal and converts it into an electrical signal to adjust the humidification amount of the humidifier.

In order to realize the above object, the present invention passes only a sound detection sensor for detecting a sound, a sound signal amplifier for amplifying a signal detected by the sound detection sensor, and a frequency band of sound among signals amplified by the sound signal amplification unit. A band pass filter, an amplifying unit for amplifying the filter signal passed through the band pass filter, a 2-bit ripple counter for counting the signal amplified by the amplifying unit as a clock signal, and a counted in the 2-bit ripple counter. And a 2X ₄ decoder for decoding the signal, and a humidification amount control display for controlling and displaying the amount of humidification while driving according to the signal output from the decoder.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Sound signal amplification comprising a sound detection sensor (1) for changing an electrical signal for detecting a sound signal, and an operational amplifier (OP1), resistors (R21), (R22) for amplifying a signal input from the sound detection sensor (1). A band including an operational amplifier OP2, a resistor R17 "R20, and a capacitor C1 (C2) which passes only a predetermined frequency band among the signals amplified and output by the sound signal amplifier 10; A pass filter 20, a transistor Q5 for amplifying a predetermined frequency signal passed through the band pass filter 20, and a JK flip for counting the signal amplified by the transistor Q5 as a clock signal with 2 bits. 2-bit ripple counter 30 composed of flops 31 and 32, and AND gates 41-44, inverters 45, 46 for decoding the signal counted and output from the 2-bit ripple counter 30; 2X4 decoder 40 consisting of a) and on / off driving according to the output decoded to the 2X4 decoder 40 Humidity control display unit 50 consisting of a resistor (R12 "R15), a transistor (Q1" Q4), a light emitting diode (51-54), a photocoupler (61-64), a resistor (R1 "R11) to control the humidification amount It is composed of.

Referring to the effect of the present invention configured as described above are as follows.

First, humidification is in operation, and when the user makes a beep, the beep signal is detected by the sound sensor 1 and is converted into an electrical signal.

The changed electric signal is amplified to a predetermined level through the operational amplifier OP1 of the amplifier 10, and the amplified signal is passed through the amplifying transistor Q5 through the band pass filter 20 to the ripple counter 30. In this case, the band pass filter 20 is a filter for selecting only the signal corresponding to the frequency of the hand sound among the signals amplified by the amplifier 10, wherein the frequency passed is the inversion of the operational amplifier (OP2) It is determined by the value of the resistor R18-R20 connected to the terminal (-) and the frequency is calculated as follows.

If the voltage gain of the desired frequency band is -Ao, the center frequency is fo, and the 3dB bandwidth is B,

in The center angular frequency (Wo) is Wo = 2πfo.

In addition, the values of the capacitors C1 and C2 connected to the inverting terminal (−) of the operational amplifier OP2 are previously determined to be easy values. then Becomes then Can be calculated with a value.

In this way, the signal output through the band pass filter 20 is applied to the base of the transistor Q5 to conduct the transistor Q5. When the transistor Q5 conducts, a high voltage applied to the collector is applied to the base. The emitter is applied to the clock terminal of the flip-flop 31 of the 2-bit ripple counter 30.

The flip-flop 31 receives a high signal from the conductive transistor Q5 and the output QA becomes high. The high output QA signal is applied to the clock terminal of the flip-flop 31 to flip the flop. The output QB of 32 is also high.

Subsequently, when a second signal is applied to the ripple counter 30 through the transistor Q5, the output QA of the flip-flop 31 of the ripple counter 30 goes low, and the flip-flop 32 Since no signal is applied, output QB remains high.

When the third signal is applied to the ripple counter 30 through the transistor Q5, the output QA of the flip-flop 31 changes from low to high, and the flip-flop 32 receives the changed high signal. The output QB will change from high to low.

Fourth, when a signal is applied to the ripple counter 30 through the transistor Q5, the output QA of the flip-flop 31 changes from high to low, and the flip-flop 32 receiving this low signal The low signal of the state is maintained.

When the fifth signal is applied to the ripple counter 30 through the transistor Q5, the flip-flops 31 and 32 return to the initial state, and the outputs QA and QB are both high.

This condition is repeated over and over again.

Here, the fifth signal from the first signal means the number of claps.

In summary, this is as follows.

When the output QA signal QB is applied to the decoder 40, the outputs Do to D3 of the decoder 40 are as follows.

As such, the output signals D0 to D3 decoded by the decoder 40 are applied to the bases of the transistors Q1 to Q4 through the respective resistors R12 to R15, and at this time, the high of the output D0 to D3 signals is high. Only the transistor to which the signal value is applied is turned on so that the amount of humidification is controlled. For example, of the outputs D0 to D3 of the decoder 40, the output D0 is a high signal and the remaining outputs D1 to D3 are a low signal. In this case, the high signal of the AND gate 41 of the decoder 40 is applied to the base of the transistor Q1 of the humidification control display 50 through the resistor R12 to conduct the transistor Q1.

As such, when the transistor Q1 is conducted, the photocoupler 61 of the four photocouplers 61-64 is turned on, so that a current flows through the resistor R1 connected to the port coupler 61. The resistors connected to the photocouplers 61-63 are set in advance in order of R1 >

Therefore, the current flowing through the photocoupler 61 flows very little due to the large resistance value of the resistor R1, so that the minimum amount of humidification is set and the transistor Q1 is turned on to turn on the light emitting diode 51 connected to the collector. This indicates that the minimum amount of humidification has been set.

On the basis of this operation, when the output D1 of the decoder 40 becomes high, more humidification amount is set than the output Do, and when the output D2 becomes high, more humidification amount than the output D1 becomes. The humidification amount is set, and when the output D3 becomes high, the current flowing is not affected by the resistance, so a lot of current flows to set the maximum humidification amount.

As described above, the remote humidification control circuit of the present invention detects this according to the user's hand gesture and adjusts the amount of humidification, which is very convenient in use.

Claims (5)

In the humidification control circuit of the humidifier, a sound detection sensor (1) for detecting the user's hand gestures to change the electrical signal, and a sound signal for amplifying a predetermined level with an electrical signal by the detection of the sound detection sensor (1) A band pass filter 20 for passing only a signal band corresponding to a frequency of a handbeat among signals amplified by the sound signal amplifier 10, and an output signal of the band pass filter 20; 2 bit ripple counter 30 counting through transistor Q5, 2 x 4 decoder 40 decoding according to the output value of the 2 bit ripple counter 30, and according to the output decoded by the 2 x 4 decoder 40 On. Humidification amount remote control circuit of the humidifier, characterized in that consisting of the gas amount adjustment display unit 50 to adjust the display of the humidification amount while driving off. The band pass filter 20 is configured by connecting a plurality of resistors R17 "R20 and a capacitor C1 (C2) to the operational amplifier OP1, and said plurality of resistor values R18". R20) humidification remote control circuit of the humidifier, characterized in that to obtain the frequency of the hand sound. 2. The apparatus of claim 1, wherein the 2-bit ripple counter (30) comprises a plurality of flip-flops (31) (32), and the outputs of the plurality of flip-flops (31) (32) have a high signal according to the number of clicks. A humidification remote control circuit of the humidifier, characterized in that to output the low signal to each other or equal. The decoder of claim 1 or 3, wherein the 2X4 decoder 40 comprises a plurality of end gates 41-44 and inverters 45 and 46, and the decoder (4) according to the output of the ripple counter 30 (4). A humidification amount remote control circuit of the humidifier, characterized in that the output of the humidifier 40 to control the humidification amount by changing the output of the different. The humidification amount remote control circuit of the humidifier according to claim 4, wherein if the humidification amount is controlled by the humidification amount control display unit (50), the humidification amount display unit (50) displays the light emitting diode (51-54).