JPH0526830Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used as a device for remotely controlling a load using human voice. For example, it is used as a remote control device that turns on a desk lamp for a set time and then stops the lamp using the same voice while the lamp is on.

[Conventional technology]

Conventional techniques include, for example, Japanese Utility Model Application No. 58-50637 and US Pat. No. 4,433,362 by the same inventor.

[Problem that this invention is trying to solve]

First, this type of conventional device has the problem that the load is energized by a strong impact sound, such as the sound of metal touching, the sound of clapping hands, etc., and operation is caused by an erroneous signal.

Second, normally occurring environmental sounds such as the radio or television are louder,
There is a problem with detecting high frequency components of 5KC or higher, causing the load to be energized and malfunction.

Thirdly, when using a desk lamp powered by an AC power source as a load and controlling the lighting using conventional technology,
It is convenient to use because the lighting time can be extended to about 1 minute and the light can be turned off halfway through. However, there are problems that remain unresolved.

[Means for solving the problem]

First method.

The output of the receiving microphone is divided by a high-pass filter and a low-pass filter using a boundary of approximately 5KC, and these are rectified and smoothed to produce a DC signal.

Second means.

The output DC signals from the high-pass filter and the low-pass filter are input to a comparator circuit, and only when the former is larger than the latter, an electrical signal proportional to the DC signals is obtained.

Third means.

The capacitor is charged with a set current value only during the period in which the electrical signal output from the comparator circuit continues.

Further, when the output electric signal of the comparator circuit disappears, the capacitor is short-circuited and discharged.

Fourth means.

When the charging voltage of the capacitor exceeds a set value, a detection signal is obtained, which causes the switching element to conduct and energizes the load for a set time.

Fifth means.

If the load is an AC light source, such as a desk lamp, if there is one more detection signal from the capacitor while the lamp is on, the switching element is rendered non-conductive and the light source is turned off.

[Effect]

The device of the present invention is a remote control device that controls energization of a load by using the resonant fricative sound generated when the tongue passes between the roof of the mouth and the tongue, without using the vocal cords.

The above-mentioned shhh sound will hereinafter be referred to as the C sound.

The frequency of sound C varies depending on the person, but on average
5KC or higher. There are various types of sound waves of 5KC or higher as environmental sounds. Examples include the sound of the radio, television, the sound of a vacuum cleaner, and everyday conversation.

However, these environmental sounds include sound waves with cycles above and below 5KC, and the amount of these waves increases and decreases in a short period of time.

The effect of the present invention is to utilize the properties of such environmental sounds to remove erroneous signals and to obtain a remote control device that operates in response to sound C only.

The case of the electric circuit shown in FIG. 3 will be explained using the sound of a television as an example.

From the direction of arrow B, the TV sound is coming from microphone 6.
When input, the signal is divided by the high-pass filter 24 a and the low-pass filter 24 b into those of about 5 KC or more and those below about 5 KC, rectified and smoothed, and then input to the operational amplifier 27 .

The output of the output terminal 27a of the operational amplifier 27 is alternately high or low level, or continues to be low level.

The output of the terminal 27a serves as the input of the transistor 10a shown in FIGS. 2a and 2b. In this case,
As will be described later, the microphone 6, the amplifier circuit 7, and other members for obtaining the base input signal of the transistor 10a are omitted.

When the base input of the transistor 10a is at a low level, it is non-conductive, so the transistors 10e and 10c are conductive, and the capacitor 11
is shorted.

When the output of the terminal 27a in FIG. 3 becomes high or low level and the signal is alternated, the on/off of the transistors 10c and 10e is also alternated, and the capacitor 11 is not charged. Therefore, they are not sensitive to TV sound. Furthermore, even if the incident sound waves of the microphone 6 include sound waves of 5KC or higher and 5KC or lower, the output of the terminal 27a becomes a low level and is not sensitive to the sound waves. Furthermore, even if there is an impact sound like metal touching, the electric charge in the capacitor 11 is immediately short-circuited and disappears due to the conduction of the transistors 10e and 10c, so that it is not sensitive to the sound.

However, if the C sound is input and this continues for a set time (0.5 seconds to 1 second is practical),
Since the output of the operational amplifier 27 is continuously obtained during that time, the capacitor 11 is charged, and the transistors 21 and 10d are made conductive via the trigger diode 20 or the Zener diode 12, and the lamp 2
2, 18 is lit.

When the light is turned on for the set time, the capacitor 11 is discharged and the transistors 21 and 10d become non-conductive.
It can be turned off automatically.

If you use the electric circuit shown in Figure 2a, C
The light can be turned off again with a sound. Details of this will be described later with reference to examples.

〔Example〕

The apparatus of the present invention will be described with reference to embodiments shown in FIG. 1 and subsequent figures. Since members with the same symbols in each drawing are the same, their repeated explanations will be omitted.

FIG. 1 is an external view of a desk lamp, which is one example of the load of the device of the present invention.

In FIG. 1, a support stand 1 has a support stand 3 erected thereon, and a light bulb and its socket are installed at the upper end of the support stand 1 by well-known means, but these are not shown.

Symbol 2 is shaded and has various designs.

Lighting control is performed by operating the knob of the electric switch 5. Symbol 1a is a bulge on the upper surface of the support base 1, which is part of a spherical surface, and a microphone is attached to an opening 4 at the apex of the bulge so that sound waves can be received.

This invention does not use a special sound source,
The aim is to obtain a device for remotely controlling a load by utilizing special human vocalization means.

There are many prior art remote control means of this type, as seen in television remote controls. However, all of these utilize specially constructed sources of oscillation, such as acoustic waves, light waves, or radio waves. However, these oscillation sources have the disadvantage that they include consumable parts such as batteries and are large and expensive. Furthermore, if you are careless and forget to carry it with you, a convenient remote control device turns into an inconvenient device. Also, turning on a desk lamp in the dark in search of an oscillation source is considered an inconvenient and contradictory idea.

There is also a means to control the lighting using human words, but a device that understands and makes decisions based on words has the drawback of being expensive and impractical.

Some devices are activated by the sound of clapping hands, but they are not practical because sounds from the environment, such as the sound of objects hitting each other, can act as a false signal. There are also cases where it is desired to control lighting without generating sound. For example, there is a case where there is a sleeping infant. Even in such cases, effective means are required, but there are none that are practical. Although it is possible to use a commercially available touch switch, this has the added disadvantage of being expensive and is considerably impractical.

The device of the present invention is characterized by eliminating the above-mentioned drawbacks and contradictions, and details thereof will be explained with reference to FIG. 1 and the subsequent drawings.

FIGS. 2a, 2b, and 3 are explanatory diagrams of a control circuit that controls lighting.

In FIG. 2a, the microphone 6 is located at the arrow B
A C sound coming from the direction is received, its output is amplified by an amplifier 7, and a signal of 5KC or more is amplified by a high pass filter consisting of a capacitor 8a and a resistor 8b.
Rectification and smoothing are performed by a diode 9a and a capacitor 9b.

This signal causes transistor 10a to become conductive, so that transistor 10c becomes non-conductive.

Also, transistor 10b becomes conductive.

Therefore, charging of the capacitor 11 is started from the DC positive voltage terminal 10. The time constant of capacitor 11 is made relatively large. That is, when the C sound continues for about 0.6 seconds or more, the Zener diode 12 breaks down, the JK type flip-flop circuit (hereinafter simply referred to as the F circuit) 13 is energized, and its output is obtained from the terminal 13b. Then, the transistor 10d becomes conductive. When the power is turned on,
The output of the F circuit 13 is set to a low level. However, the charging voltage of the capacitor 14 increases, the Zener diode 12a breaks down, and the input to the F circuit 13 is obtained, so that the output of the terminal 13b returns to the low level. Therefore, transistor 10d becomes non-conductive.

For the reason mentioned above, sound C is input to the microphone 6 from the direction of arrow B, and when this lasts for about 0.6 seconds, the transistor 10d becomes conductive, and for about 30 seconds
After about one minute, the output of the terminal 13b of the F circuit 13 disappears, and the transistor 10d becomes non-conductive again.

Also, when the transistor 10d is conductive,
When the C sound is inputted to the microphone 6 again, the capacitor 11 is charged again and the F circuit 13 is energized via the Zener diode 12, so its output is converted to a low level and the transistor 10d is turned off. shall be. Symbol 16 is a commercial AC power supply, and this power is supplied to the diode bridge circuit 1.
7, a positive voltage is applied to the collector side of the transistor 10d. Therefore, when transistor 10d conducts, light bulb 18
is lit.

Therefore, when the C sound is input, the light bulb 18 of the desk lamp is turned on and automatically turned off after about 30 seconds to 1 minute.

If the C sound is input again while the light is on, the transistor 10d becomes non-conductive, so the light can be turned off.

It is impossible to completely control the lighting described above using the C sound. For example, when a polyethylene bag is squeezed by hand, a sound wave similar to the C sound is emitted, resulting in an erroneous signal. A creaking sound when a door opens or closes is also a false signal.

Even in such a case, it is effective because it automatically turns off after about 30 seconds to 1 minute.

When the upper surface of the bulging part 1a in Fig. 1 is stroked with the palm of the hand in the direction of arrow A, mechanical resonance occurs, and each part is adjusted in size and weight so that this vibration frequency includes a frequency of about 5KC or more. is set. Therefore, the internal microphone also resonates, producing an output similar to C sound.

Therefore, the same lighting control can be performed, which is effective when it is necessary to avoid making noise.

It is also necessary to avoid reacting to short-lived sound waves, such as the sound of clapping hands, glass tapping, and metal touching.

Transistor 10c is provided to solve the above-mentioned problem. That is, when the C sound is not input, the transistor 10c is conductive, so the capacitor 11 is short-circuited, and charging due to noise and leakage current is prevented. When the C sound is input, transistors 10a and 10b become conductive and transistor 10c becomes non-conductive, so that charging of capacitor 11 is started and the above-mentioned lighting control is performed.

When a small impact sound is input, capacitor 1
1 is charged by a large input energy, the voltage rises rapidly, and the F circuit 13 is activated, resulting in an erroneous signal.

However, since the base resistance of the transistor 10b is made large, the capacitor 11 is charged with a substantially constant current by the power source positive electrode 10. Therefore, since only the width of the impact sound is detected, the occurrence of false signals is eliminated. Moreover, even if such an impact sound is repeatedly input, each time it disappears, the transistor 10c becomes conductive and short-circuits the capacitor 11, so that it is possible to avoid the integration of the sound into an erroneous signal.

FIG. 2b shows another embodiment for achieving the same purpose as the previous embodiment, in which a DC power source such as a battery is used as the power source, and a light bulb 22 is used as the load.

In FIG. 2b, terminal 23 is the DC power supply positive terminal. Therefore, capacitor 11 via resistor 19
Since the charging current is almost constant, it has the same effect as in FIG. 2a. Note that the trigger diode 20 replaces the Zener diode 12 in FIG. 2a.

Transistor 10b of FIG. 2a has been removed and a transistor which performs the same function as transistor 10c is shown at 10e.

When sound C enters the microphone 6 from the direction of arrow B, and this continues for 0.6 seconds or more, the capacitor 1
1 is charged and via the trigger diode 20,
Transistor 21 becomes conductive and lights bulb 22.

When the lamp is lit for 10 to 20 seconds, the capacitor 11 is discharged, the base current of the transistor 21 disappears, the lamp becomes non-conducting, and the lamp 22 turns off.

Within the above-mentioned time, the necessary work can be done by closing the switch on the electric light that is turned on by the alternating current in the club room.

In order to prevent battery consumption, the lighting time of the light bulb 22 cannot be made too long.

Even if there is a continuous impact sound, as soon as one impact sound ends, the transistor 10a becomes non-conductive, the transistor 10e becomes conductive, and the capacitor 11 is discharged, so there is no integration effect and the result is an erroneous signal. The light bulb 22 will not be turned on.

The electric switch 5 in Fig. 2a has the same symbol as in Fig. 1, and when it is manually closed, the desk lamp lights up, and when it is opened, it can be remotely controlled by a C sound to control the lighting of the desk lamp. be.

In the embodiments shown in FIGS. 2a and 2b, radio, television, and other environmental sounds from daily life become false signals.
The load may be energized.

According to actual measurements, 100% of the light will turn on within 50cm from the TV. Increasing the audio output of the television also increases the distance mentioned above.

In a closed room such as a car, the above-mentioned disadvantages are further exacerbated.

FIG. 3 shows an electric circuit for eliminating the above-mentioned drawbacks. In FIG. 3, a sound wave incident from the direction of arrow B is received by a microphone 6 and amplified by an amplification circuit 7, and its output is separated by a high-pass filter 24a to a sound wave of about 5 KC or higher, and is passed through a diode 25a and a capacitor. 26a, and the + of the operational amplifier 27 (which becomes a comparison circuit)
input to the terminal.

The output of the amplification circuit 7 is passed through a low-pass filter 24b.
5KC or less is separated, rectified and smoothed by a diode 25b and a capacitor 26b, and is input to the - terminal of the operational amplifier 27.

The base input of the transistor 10a shown in FIGS. 2a and 2b is controlled by the output of the terminal 27a.
In this case, symbols 6, 7, 8 in Figure 2 a and b
Members indicated by a, 8b, 9a, and 9b have been removed.

In the case of a sound wave of about 5KC or less that is incident on the microphone 6, for example a male conversation, the output of the low-pass filter 24b is larger than the output of the high-pass filter 24a, so the output of the terminal 27a becomes a low level output, as shown in FIG. Transistors 10 a and b
a is kept non-conductive and does not respond.

When the sound includes sound waves of 5KC or higher, such as the sound of a television, there is also an output from the high-pass filter 24a.
There is also an output of the low pass filter 24b.

Both outputs may be obtained simultaneously or alternately. However, there are extremely few opportunities for sound waves of 5KC or higher to last 0.6 seconds.

Therefore, if both are substantially equal when obtained at the same time, there will be no high-level output from the operational amplifier 27. It is preferable to configure the output of the operational amplifier 27 to be at a low level even if there is a slight difference.

If obtained alternately, low pass filter 2
4b, the output of the operational amplifier 27 is at a low level, so that the transistor 10c or 10e shown in FIGS. Therefore, the load is not energized and therefore no erroneous signal is generated.

In the above-mentioned state, the microphone 6
When C sound is input to and this continues for more than 0.6 seconds,
The high-pass filter 24a adds the C sound, and the output of the operational amplifier 27 becomes a high-level output for 0.6 seconds or more, and the conduction of the transistor 10a allows lighting control of the light bulb serving as a load by remote control. .

As described above, the addition of the electric circuit shown in FIG. 3 has the effect of eliminating erroneous signals caused by environmental sounds.

〔effect〕

Environmental sounds (human conversations, TV, radio sounds, etc.)
It is possible to prevent false signals caused by

If the load is, for example, a light bulb in a desk lamp, it will not malfunction due to small impact sounds such as the sound of metal touching or the sound of clapping hands.
A desk lamp whose lighting can be controlled by sound can be obtained.

When the desk lamp is turned off with the electric switch at bedtime, an easy-to-use desk lamp that can be automatically converted into a remote control device using the C sound is obtained.

When the generation of the C sound must be avoided, by stroking the spherical bulge 1a with the palm of the hand, a desk lamp whose lighting can be controlled can be obtained.

[Brief explanation of drawings]

Fig. 1 is an external view of the device of the present invention, Fig. 2 a and b
3 shows an electric circuit diagram of the device of the present invention, and FIG. 3 shows an electric circuit diagram added to a part of the electric circuits shown in FIGS. 2a and 2b. 1... Support stand, 2... Shade, 3... Pillar,
4...Opening part, 1a...Bulging part, 5...Electric switch, 6...Microphone, 7...Amplifier, 8
a, 8b, 24a...high pass filter, 10,
23...Power supply positive electrode, 10a, 10b,..., 10
e, 21... Transistor, 11, 14... Capacitor, 12, 12a... Zener diode, 1
3...JK type flip-flop circuit, 16...AC power supply, 17...diode bridge, 18,2
2...Light bulb, 20...Trigger diode, 24b
...Low pass filter, 27...Op amp.

Claims (1)

[Claims for Utility Model Registration] (1) A microphone that receives resonant fricative sounds that pass between the roof of the mouth and the tongue without using the human vocal cords; A high-pass filter circuit that passes and outputs only frequency signals, a low-pass filter that passes and outputs only frequency signals of about 5KC, and DC electricity by rectifying and smoothing the output signals of the high-pass filter and low-pass filter. The first and second rectifier circuits that convert into signals and the outputs of the first and second rectifier circuits are used as two inputs, and when the output of the first rectifier circuit exceeds the output of the second rectifier circuit. , a comparator circuit that can obtain an output proportional to the amount exceeded, a capacitor that is charged with a constant current, a first transistor connected in parallel to the capacitor, and a second transistor that is made conductive by the output of the comparator circuit. , second
When the transistor is conductive, the first transistor is held in a non-conductive state, and when the second transistor, which has no output from the comparison circuit, is in a non-conductive state, the first transistor is made conductive and the capacitor is short-circuited. and an electric circuit in which a detection signal is obtained only when the charging voltage of the capacitor exceeds a set value, the load is energized by the detection signal, and the load is automatically de-energized after a set time. A voice remote control device characterized in that: (2) A voice remote control device, characterized in that a battery is used as a DC power source and a light bulb is used as a load, within the scope of the utility model registration claim set forth in paragraph (1). (3) In the scope of the utility model registration claim described in paragraph (1), a light bulb that is a load that is lit by an AC power supply and a capacitor that is inserted in series with the light bulb when a detection signal of the charging voltage of the capacitor is obtained. The switching element is turned on for a set period of time to light up the light bulb.
It is composed of a control circuit that turns off the light bulb by turning off the switching element when the above-mentioned detection signal is obtained just one more time while the light is on, and a manual electric switch connected in parallel to the switching element. Features a voice remote control device.