JPH07176956A - Fluctuation signal generator - Google Patents

Fluctuation signal generator

Info

Publication number
JPH07176956A
JPH07176956A JP31998193A JP31998193A JPH07176956A JP H07176956 A JPH07176956 A JP H07176956A JP 31998193 A JP31998193 A JP 31998193A JP 31998193 A JP31998193 A JP 31998193A JP H07176956 A JPH07176956 A JP H07176956A
Authority
JP
Japan
Prior art keywords
signal
fluctuation
sine wave
oscillator
fluctuation signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP31998193A
Other languages
Japanese (ja)
Inventor
Masahiro Morita
雅弘 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP31998193A priority Critical patent/JPH07176956A/en
Publication of JPH07176956A publication Critical patent/JPH07176956A/en
Pending legal-status Critical Current

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  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

PURPOSE:To generate a fluctuation signal whose characteristic is simply changed. CONSTITUTION:A signal sin(0.2pit+theta1) is generated from an oscillator 111, an oscillator 112 generates a signal 0.5sin(0.1pit+theta2) an oscillator 113 generates a signal 0.25sin(0.5pit+theta4), an oscillator 114 generates a signal 0.125sin(0.25pit+theta8), and an oscillator 115 generates a signal 0.0625sin(0.125pit+theta16), and the initial phases theta1, theta4, theta8, theta16 are generated based on random numbers. The sine wave signals are added by an adder circuit 12 to obtain a signal having a characteristic of 1/f as a fluctuation signal. Other fluctuation characteristic is obtained by changing the amplitude of the sine wave signals.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、扇風機の風速、或い
は空調装置の風量、温度、又は調光器における明るさの
制御などを行う、ゆらぎ信号を発生する装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for generating a fluctuation signal for controlling the wind speed of an electric fan, the air volume of an air conditioner, the temperature, or the brightness of a dimmer.

【0002】[0002]

【従来の技術】扇風機の風速や空調機器の風量或いは温
度または照明装置の明るさなどは、これが設定した値の
ままであるよりも、その設定した値を中心として、ある
程度ゆらいでいたほうが人間にとって自然の環境に近い
ものとなる。このため、このような各種機器をゆらぎ信
号で制御して、設定値に対してある程度ゆらいだ状態で
制御することが提案されている。
2. Description of the Related Art For humans, it is better for the wind speed of an electric fan, the air flow rate or temperature of an air conditioner, or the brightness of a lighting device to fluctuate to some extent around the set value than it is. It is close to the natural environment. For this reason, it has been proposed to control such various devices with a fluctuation signal so as to control them with some fluctuation with respect to a set value.

【0003】自然の本性に根ざす変動のスペクトルは1
/f型の傾向を示している。従って、例えば扇風機の風
量や空調機の温度などを1/fのパワースペクトルをも
って変調するようにすると自然に馴染んだ環境が作りだ
される。従来においてこのように各種機器をゆらぎ制御
するには、例えば、小川のせせらぎ、風の音のような自
然界の音や自然界の風速、また心拍や脳波などの生態情
報、クラシック音楽などを電気信号に変換して単位時間
当たりの0交差回数を求めて1/fデータとして用いら
れていた。或いは人工的に1/f特性を得るため、白色
雑音に対して低域通過フィルタと広域通過フィルタとを
組み合わせて特定の周波数帯のパワーを減衰させて1/
f特性に近似した周波数特性を得るものがあった。
The spectrum of variation rooted in the nature of nature is 1
The / f type tendency is shown. Therefore, for example, if the air volume of the fan or the temperature of the air conditioner is modulated with the power spectrum of 1 / f, an environment that is naturally familiar is created. Conventionally, to control fluctuations of various devices in this way, for example, the sound of nature such as the stream of the stream, the sound of the wind and the wind speed of the natural world, the biological information such as heartbeat and brain waves, and classical music are converted into electric signals. The number of 0 crossings per unit time was calculated and used as 1 / f data. Alternatively, in order to artificially obtain the 1 / f characteristic, a low-pass filter and a wide-pass filter are combined with respect to white noise to attenuate the power of a specific frequency band to 1 / f.
Some have obtained frequency characteristics similar to the f characteristics.

【0004】[0004]

【発明が解決しようとする課題】先に述べたように自然
界の音などを利用する場合は、いったんこれらの音を何
らかの記憶媒体に取り込んで記録し、その後その記録を
読みだして1/f特性を作る必要があり、このゆらぎ信
号を作るのに非常に手間がかかり値段も高いものとなっ
た。一方人工的に1/f特性を生成する場合は、その特
性を変えようとすると、その度にハードウエア構成を変
え、また仕様を変更しなければならず不便であった。
As described above, when using sounds in the natural world, etc., these sounds are temporarily stored in some storage medium and recorded, and then the recording is read out and the 1 / f characteristic is read. Need to be made, and it was very time-consuming and expensive to make this fluctuation signal. On the other hand, in the case of artificially generating the 1 / f characteristic, if the characteristic is to be changed, the hardware configuration must be changed and the specifications must be changed each time, which is inconvenient.

【0005】[0005]

【課題を解決するための手段】この発明によれば、正弦
波発生手段から周波数が互いにほぼ正数倍関係の少なく
とも2つの正弦波信号が発生され、これら正弦波信号が
加算回路で加算されて、ゆらぎ信号として出力される。
According to the present invention, at least two sine wave signals whose frequencies are substantially positive multiples are generated from the sine wave generating means, and these sine wave signals are added by an adding circuit. , Is output as a fluctuation signal.

【0006】[0006]

【実施例】図1にこの発明の実施例を示す。この発明に
おいては複数の正弦波発振器11 1 乃至11N が設けら
れ、これら正弦波発振器111 乃至11N からg1 =A
1sin (2πft+θ1 )、g2 =A2 sin (4πft
+θ2 )‥‥‥gN =ANsin (2Nπft+θN )が
それぞれ発生され、これら正弦波発振器111 乃至11
N よりの正弦波信号g1 乃至gN は加算回路12におい
て加算されて、ゆらぎ信号f(t)として出力される。
FIG. 1 shows an embodiment of the present invention. To this invention
In addition, a plurality of sine wave oscillators 11 1Through 11NIs provided
These sine wave oscillator 111Through 11NTo g1= A
1sin (2πft + θ1), G2= A2sin (4πft
+ Θ2) ..... gN= ANsin (2Nπft + θN)But
These sine wave oscillators 11 are generated respectively.1Through 11
NSinusoidal signal g from1To gNIs in the adder circuit 12
Are added together and output as a fluctuation signal f (t).

【0007】 f(t) =Σgn =ΣAn sin(2nπft+θn ) ‥‥‥‥(1) Σはn=1からNまで 前記(1)式のゆらぎ関数において具体的には、例えば
その基本周波数f1 を0.1Hzとし、その第2、第
4、第8、第16高調波、すなわちf2 =2f1、f4
=4f1 、f8 =8f1 、f16=16f1 を発生する5
つの正弦波発振器が設けられ、1/fのゆらぎを発生す
る場合は、これら各正弦波信号g1 の振幅A1 =1V、
2 =0.5V(=A1 /2)、A4 =0.25V(=
1 /4)、A8 =0.125V(=A1 /8)、A16
=0.0625V(=A1 /16)とし、それぞれの初
期位相θ1 、θ2 、θ4 、θ8 、θ16は乱数により定め
るものとする。よってこの時、ゆらぎ信号は次のように
なる。
F (t) = Σg n = ΣA n sin (2nπft + θ n ) ... (1) Σ is from n = 1 to N. Specifically, in the fluctuation function of the equation (1), for example, The frequency f 1 is set to 0.1 Hz, and its second, fourth, eighth and sixteenth harmonics, that is, f 2 = 2f 1 , f 4
= 4f 1 , f 8 = 8f 1 , f 16 = 16f 1 is generated 5
When two sine wave oscillators are provided and generate 1 / f fluctuation, the amplitude A 1 = 1V of each sine wave signal g 1 ,
A 2 = 0.5V (= A 1 /2), A 4 = 0.25V (=
A 1/4), A 8 = 0.125V (= A 1/8), A 16
= And 0.0625V (= A 1/16) , each of the initial phase θ 1, θ 2, θ 4 , θ 8, θ 16 shall be determined by random numbers. Therefore, at this time, the fluctuation signal becomes as follows.

【0008】 f(t) =sin(0.2 πt+θ1 ) + 0.5sin(0.1 πt+θ2 ) + 0.25sin(0.15 πt+θ4 ) + 0.125sin(0.25πt+θ8 ) + 0.0625sin(0.125πt+θ16) このゆらぎ信号は、図2に示すような波形になる。この
ゆらぎ信号の最大振幅はA1 +A2 +A4 +A8 +A16
であり、繰り返し周期は0.1Hz(=f1 )であり、
1/fゆらぎが発生できることが理解される。この実施
例では計算時間を短くするために第3、第5、第6、第
7、第9、第10、第11、第12、第13、第14、
第15高調波の正弦波信号発生器を省略したが、これら
の発生器を付加してもよいことは当然である。又、ゆら
ぎ周期を充分長くしたいときは、f1 の周波数を更に低
くすればよい。しかし、1周期のゆらぎ波形の発生が終
了した時点で、新たに各発振器の位相を乱数により変更
して別のパターンのゆらぎ波形の信号を発生してもよ
く、繰り返しのないゆらぎ波形を発生することも可能で
ある。
F (t) = sin (0.2 πt + θ 1 ) + 0.5sin (0.1 πt + θ 2 ) + 0.25sin (0.15 πt + θ 4 ) + 0.125sin (0.25πt + θ 8 ) + 0.0625sin (0.125πt + θ 16 ) This fluctuation signal is The waveform is as shown in FIG. The maximum amplitude of this fluctuation signal is A 1 + A 2 + A 4 + A 8 + A 16
And the repetition cycle is 0.1 Hz (= f 1 ),
It is understood that 1 / f fluctuations can occur. In this embodiment, in order to shorten the calculation time, the third, fifth, sixth, seventh, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth,
Although the fifteenth harmonic sine wave signal generator is omitted, it goes without saying that these generators may be added. If the fluctuation period is desired to be sufficiently long, the frequency of f 1 may be further lowered. However, when the generation of the fluctuation waveform of one cycle is finished, the phase of each oscillator may be newly changed by a random number to generate a fluctuation waveform signal of another pattern, and a fluctuation waveform without repetition is generated. It is also possible.

【0009】更にこのような、個々の正弦波発振器を設
けることなく、それぞれ、これらをコンピュータにより
プログラムによってデジタル信号として発生してもよ
い。このようにCPU、ROM、RAM、入出力部を含
むマイクロコンピュータによってゆらぎ発生装置21を
図3に示すように構成し、このゆらぎ発生装置より発生
したゆらぎ信号を位相制御回路22に供給して、商用交
流100Vの流通角をゆらぎ信号によって制御し、その
位相制御回路22の出力により電球23に流れる電流を
制御することによって電球23による輝度を変化させ、
つまり調光して明るさをゆらいだ状態で制御することも
できる。
Further, without providing such individual sine wave oscillators, these may be generated as digital signals by a program by a computer, respectively. As described above, the fluctuation generating device 21 is configured by the microcomputer including the CPU, the ROM, the RAM, and the input / output unit as shown in FIG. 3, and the fluctuation signal generated from the fluctuation generating device is supplied to the phase control circuit 22. The brightness of the light bulb 23 is changed by controlling the flow angle of the commercial AC 100V by the fluctuation signal and controlling the current flowing through the light bulb 23 by the output of the phase control circuit 22.
In other words, it is possible to control the light in a fluctuating state by dimming.

【0010】上述においては、振幅An =(1/n)A
1 として、1/fのゆらぎ信号を得たが、An =(1/
2 )A1 とすれば、(1/f)2 のゆらぎ信号とな
り、或いは、An =(1/√n)A1 とすると、1/√
のゆらぎとなる。
In the above, the amplitude A n = (1 / n) A
As 1, but to obtain a fluctuation signal of 1 / f, A n = ( 1 /
If n 2 ) A 1 then a fluctuation signal of (1 / f) 2 is obtained, or if A n = (1 / √n) A 1 then 1 / √
f Fluctuations.

【0011】[0011]

【発明の効果】以上述べたように、この発明によれば複
数の正弦波を発生して、これを合成することによりゆら
ぎ信号を発生するため、自然界の音などを利用する場合
と比べて記録、再生をする必要がなく、手間がかからず
安価に構成することができる。また周波数、振幅、位
相、正弦波の発生の数などのパラメータを変更するだけ
で簡単に特性を変更でき、例えば1/fゆらぎ、1/f
2 のゆらぎ、1/√fのゆらぎなどを簡単に発生するこ
とができ、ハードウエアをその都度変更する必要はな
い。
As described above, according to the present invention, a plurality of sinusoidal waves are generated and a fluctuation signal is generated by combining the sinusoidal waves, so that recording is performed as compared with the case of using natural sounds. In addition, there is no need to reproduce, and it can be constructed at low cost with no trouble. The characteristics can be changed easily by changing parameters such as frequency, amplitude, phase, and the number of sine wave occurrences. For example, 1 / f fluctuation, 1 / f
2 fluctuations, 1 / √f fluctuations, etc. can be easily generated, and there is no need to change the hardware each time.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の実施例を示すブロック図。FIG. 1 is a block diagram showing an embodiment of the present invention.

【図2】その実施例によって発生したゆらぎ信号の波形
を示す図。
FIG. 2 is a diagram showing a waveform of a fluctuation signal generated by the embodiment.

【図3】この発明を利用した装置の例を示すブロック
図。
FIG. 3 is a block diagram showing an example of an apparatus using the present invention.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 周波数が基本波に対しほぼ正数倍の関係
の少なくとも2つの正弦波信号を発生する正弦波信号発
生手段と、 これら正弦波信号発生手段から発生された正弦波信号を
加算して、ゆらぎ信号として出力する加算手段と、 を具備することを特徴とするゆらぎ信号発生装置。
1. A sine wave signal generating means for generating at least two sine wave signals having a frequency that is approximately a positive multiple of the fundamental wave, and the sine wave signals generated by these sine wave signal generating means are added. A fluctuation signal generating device, comprising: an addition unit that outputs a fluctuation signal.
JP31998193A 1993-12-20 1993-12-20 Fluctuation signal generator Pending JPH07176956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31998193A JPH07176956A (en) 1993-12-20 1993-12-20 Fluctuation signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31998193A JPH07176956A (en) 1993-12-20 1993-12-20 Fluctuation signal generator

Publications (1)

Publication Number Publication Date
JPH07176956A true JPH07176956A (en) 1995-07-14

Family

ID=18116414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31998193A Pending JPH07176956A (en) 1993-12-20 1993-12-20 Fluctuation signal generator

Country Status (1)

Country Link
JP (1) JPH07176956A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011222470A (en) * 2010-03-23 2011-11-04 Sanyo Electric Co Ltd Light emission control device, illuminating device and diffusion device with illumination
CN103573667A (en) * 2012-08-07 2014-02-12 三菱电机株式会社 Air blower and control method thereof
JP2015057581A (en) * 2014-12-25 2015-03-26 三菱電機株式会社 Blower and control method
JP2019507846A (en) * 2016-02-29 2019-03-22 広東美的環境電器制造有限公司 Fan and fan control method
JP7162780B1 (en) * 2022-02-07 2022-10-28 三菱電機株式会社 SOUND ENVIRONMENT CONTROL SYSTEM AND SOUND ENVIRONMENT CONTROL METHOD

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011222470A (en) * 2010-03-23 2011-11-04 Sanyo Electric Co Ltd Light emission control device, illuminating device and diffusion device with illumination
CN103573667A (en) * 2012-08-07 2014-02-12 三菱电机株式会社 Air blower and control method thereof
US20140044558A1 (en) * 2012-08-07 2014-02-13 Mitsubishi Electric Corporation Air blower and control method thereof
JP2014035095A (en) * 2012-08-07 2014-02-24 Mitsubishi Electric Corp Blower and control method
JP2015057581A (en) * 2014-12-25 2015-03-26 三菱電機株式会社 Blower and control method
JP2019507846A (en) * 2016-02-29 2019-03-22 広東美的環境電器制造有限公司 Fan and fan control method
US11268531B2 (en) 2016-02-29 2022-03-08 Gd Midea Environment Appliances Mfg Co., Ltd. Fan and control method therefor
JP7162780B1 (en) * 2022-02-07 2022-10-28 三菱電機株式会社 SOUND ENVIRONMENT CONTROL SYSTEM AND SOUND ENVIRONMENT CONTROL METHOD
WO2023148972A1 (en) * 2022-02-07 2023-08-10 三菱電機株式会社 Acoustic environment control system and acoustic environment control method

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