JPH0824654B2 - Electric vacuum cleaner - Google Patents
Electric vacuum cleanerInfo
- Publication number
- JPH0824654B2 JPH0824654B2 JP2244384A JP24438490A JPH0824654B2 JP H0824654 B2 JPH0824654 B2 JP H0824654B2 JP 2244384 A JP2244384 A JP 2244384A JP 24438490 A JP24438490 A JP 24438490A JP H0824654 B2 JPH0824654 B2 JP H0824654B2
- Authority
- JP
- Japan
- Prior art keywords
- suction force
- fan motor
- pressure
- detecting means
- detection signals
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims description 9
- 239000000428 dust Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Electric Vacuum Cleaner (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はファンモータ前部の負圧を検出して自動的に
ファンモータの吸込力を制御する電気掃除機に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner that detects negative pressure at the front of a fan motor and automatically controls the suction force of the fan motor.
従来の技術 近年、電気掃除機は塵センサなどを用いてファンモー
タの吸込力を自動的に制御するものが主流となってきて
いる。2. Description of the Related Art In recent years, vacuum cleaners that use a dust sensor or the like to automatically control the suction force of a fan motor have become mainstream.
従来、この種の電気掃除機は第５図から第７図に示す
ような構成が一般的であった。以下、その構成について
説明する。Conventionally, this type of vacuum cleaner generally has a configuration as shown in FIGS. 5 to 7. The configuration will be described below.
図に示すように、掃除機本体１にホース２を接続し、
ホース２の先端に手元操作部３を設け、さらに床用吸込
具４を設けている。手元操作部３などに設けた塵埃通過
経路５には発光素子６、受光素子７からなる塵センサ８
が設置されており、抵抗9,10を介して電流を供給してい
る。受光素子７の出力はコンデンサ11で直流分をカット
し、交流成分（変化量）のみを増巾器12で増巾し、パル
ス変換器13でパルス信号に変換し、電力制御回路14に入
力されている。電力制御回路14には双方向性サイリスタ
15のゲート端子を接続し、双方向性サイリスタ15とファ
ンモータ16は交流電源に直列に接続している。As shown in the figure, connect the hose 2 to the cleaner body 1,
A hand operation unit 3 is provided at the tip of the hose 2, and a floor suction tool 4 is further provided. A dust sensor 8 including a light emitting element 6 and a light receiving element 7 is provided in the dust passage 5 provided in the hand operation unit 3 or the like.
Is installed and supplies current through resistors 9 and 10. The output of the light receiving element 7 is cut by the capacitor 11 for direct current component, only the alternating current component (change amount) is widened by the widening device 12, converted into a pulse signal by the pulse converter 13, and input to the power control circuit 14. ing. The power control circuit 14 includes a bidirectional thyristor.
The gate terminals of 15 are connected, and the bidirectional thyristor 15 and the fan motor 16 are connected in series to an AC power supply.
上記構成において動作を説明すると、塵埃17が塵セン
サ18を通過すると受光素子７への光量が変化するため、
増巾器12の出力はアナログ的に電圧レベルが変化する。
この変化量をパルス変換器13でパルス信号に変換する。
すなわち、塵埃17の通過量（個数）とパルス信号数が対
応した出力が得られ、電力制御回路14ではある設定値n1
以上のパルス数になるとファンモータ16の吸込力を増大
し、n1以下のパルス数になると吸込力を低減させるよう
双方向性サイリスタ15のトリガタイミングを制御するも
のであった。The operation in the above configuration will be described. When the dust 17 passes through the dust sensor 18, the light amount to the light receiving element 7 changes,
The voltage level of the output of the amplifier 12 changes in an analog manner.
The pulse converter 13 converts this change amount into a pulse signal.
That is, output throughput of the dust 17 (number) and the number of pulse signals is correspondingly obtained set value n 1 that the power control circuit 14
The trigger timing of the bidirectional thyristor 15 is controlled so that the suction force of the fan motor 16 is increased when the number of pulses is the above and is reduced when the number of pulses is n 1 or less.
発明が解決しようとする課題 このような従来の電気掃除機では、塵埃がある値以上
では強い吸込力で動作し、塵埃がある値以下では弱い吸
込力で動作し、床面の塵埃分布に応じたきめの細かな吸
込力制御あるいは多種多様な床面に適した吸込力制御な
どができないという問題を有し、また、集塵袋内の塵埃
量が多くなると必然的に吸込力が低下するという問題を
有していた。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In such a conventional electric vacuum cleaner, dust operates with a strong suction force above a certain value, and operates with a weak suction force below a certain value, depending on the dust distribution on the floor surface. There is a problem that it is not possible to perform fine suction force control or suction force control suitable for a variety of floor surfaces, and the suction force inevitably decreases as the amount of dust in the dust bag increases. Had a problem.
本発明は上記課題を解決するもので、床面の状態、集
塵袋内の塵埃量などに応じて最適の吸込力に制御し、き
め細かい掃除ができるようにすることを目的としてい
る。The present invention solves the above problems, and an object of the present invention is to control the suction force to an optimum value according to the condition of the floor surface, the amount of dust in the dust collecting bag, and the like so that fine cleaning can be performed.
課題を解決するための手段 上記目的を達成するために本発明は、ファンモータ前
部の負圧を検出する圧力センサの絶対値を検出する圧力
値検出手段と、前記圧力センサの圧力変化を検出する変
化率検出手段と、前記圧力値検出手段と変化率検出手段
とで検出した各種検出信号を総合入力し、これら各種検
出信号を基にファジィ推論を行うことによりファンモー
タの吸込力を決定するファジィ推論器とを備え、前記フ
ァジィ推論器は前記各種検出信号からファンモータの吸
込力を推論するルールを有し、前記ルールにつき各種検
出信号と前件部メンバーシップ関数から得られる適合度
によりルール後件部に重みづけを行い、この重みづけし
たルールの結論を合成した結果に基づいてファンモータ
の吸込力を決定するものである。Means for Solving the Problems In order to achieve the above object, the present invention provides a pressure value detecting means for detecting an absolute value of a pressure sensor for detecting a negative pressure in a front portion of a fan motor, and a pressure change of the pressure sensor. Change rate detecting means, and various detection signals detected by the pressure value detecting means and the change rate detecting means are comprehensively input, and the suction force of the fan motor is determined by performing fuzzy inference based on these various detection signals. And a fuzzy reasoner having a rule for deducing the suction force of the fan motor from the various detection signals, the rule being based on the various detection signals and the conformity obtained from the antecedent part membership function. The consequent part is weighted, and the suction force of the fan motor is determined based on the result of combining the conclusions of the weighted rules.
作用 本発明は上記した課題解決手段により、床面の状態、
床用吸込具の床面への密着度、集塵袋内の塵埃量などを
総合的に圧力センサの圧力値と変化率として検出し、あ
らかじめ定めたメンバーシップ関数を基に最適の吸込力
をファジィ推論器で決定でき、きめ細かい吸込力制御が
できる。Action The present invention, by the above problem solving means, the state of the floor surface,
The degree of adhesion of the floor suction tool to the floor, the amount of dust in the dust bag, etc. are comprehensively detected as the pressure value and rate of change of the pressure sensor, and the optimum suction force is determined based on the membership function set in advance. It can be determined by a fuzzy reasoner, and fine suction force control is possible.
実 施 例 以下、本発明の一実施例について第１図から第４図を
参照しながら説明する。Example Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4.
図に示すように、圧力センサ18はファンモータ19の前
部の負圧を検出するもので、圧力値検出手段20により圧
力の絶対値を検出し、変化率検出手段21により圧力変化
を検出する。これら圧力値検出手段20と変化率検出手段
21の出力をファジイ推論器22に入力する。ファジイ推論
器22は、圧力値メンバーシップ関数記憶手段23と変化率
メンバーシップ関数記憶手段24への適合度を判断する圧
力値適合度演算手段25および変化率適合度演算手段26
と、吸込力推論ルール記憶手段27の記憶内容に基づい
て、これらの適合度と吸込力メンバーシップ関数記憶手
段28の記憶内容とから吸込力を決定する吸込力演算手段
29より構成されている。圧力値メンバーシップ関数記憶
手段23、変化率メンバーシップ関数記憶手段24および吸
込力メンバーシップ関数記憶手段28はそれぞれ第３図
（ａ），（ｂ），（ｃ）に示した各メンバーシップ関数
を記憶している。また、吸込力推論ルール記憶手段27は
第４図に示した吸込力推論ルールを記憶している。As shown in the figure, the pressure sensor 18 detects the negative pressure in the front part of the fan motor 19, the pressure value detecting means 20 detects the absolute value of the pressure, and the change rate detecting means 21 detects the pressure change. . These pressure value detecting means 20 and change rate detecting means
The output of 21 is input to the fuzzy reasoner 22. The fuzzy reasoner 22 includes a pressure value membership function storage means 23 and a change rate membership function storage means 24.
And the suction force calculation means for determining the suction force from the fitness and the stored contents of the suction force membership function storage means 28 based on the stored contents of the suction force inference rule storage means 27.
It is composed of 29. The pressure value membership function storage means 23, the change rate membership function storage means 24, and the suction force membership function storage means 28 respectively store the membership functions shown in FIGS. 3 (a), (b) and (c). I remember. Further, the suction force inference rule storage means 27 stores the suction force inference rule shown in FIG.
また、吸込力演算手段29は図示していないが、圧力値
適合度演算手段25と変化率適合度演算手段26の出力から
吸込力推論ルール記憶手段27の記憶内容に基づいて前件
部の結論を出す前件部ミニマム演算手段と、この前件部
ミニマム演算手段の出力と吸込力推論ルール記憶手段27
および吸込力メンバーシップ関数記憶手段29の記憶内容
に基づいて推論ルールの結論を出す後件部ミニマム演算
手段と、それぞれのルールの全結論から最終的な吸込力
を決定する重心演算手段とにより構成している。Although not shown in the drawing, the suction force calculation means 29 is based on the stored contents of the suction force inference rule storage means 27 from the outputs of the pressure value suitability calculation means 25 and the change rate suitability calculation means 26. And the output of the antecedent part minimum computing means and the suction force inference rule storage means 27
And suction force membership function storage means 29: Consequent part minimum computing means for drawing conclusions of inference rules based on the stored contents, and center of gravity computing means for determining the final suction force from all conclusions of each rule. are doing.
ファジイ推論器22の出力は双方向性サイリスタなどを
有する制御手段30に入力し、ファンモータ19の吸込力を
制御する。The output of the fuzzy reasoner 22 is input to the control means 30 having a bidirectional thyristor or the like to control the suction force of the fan motor 19.
上記構成において動作を説明すると、圧力値検出手段
20の出力が第３図（ａ）のＡ点の場合、圧力値メンバー
シップ関数のうち、“高い”のメンバーシップ関数が約
2/3、“普通”のメンバーシップ関数が約1/3のウエイト
であるため、圧力値適合度演算手段25は圧力値はやや高
いと判断する。また、変化率検出手段21の出力が第３図
（ｂ）のＢ点の場合、同枠にして変化率適合度演算手段
26は変化率が“やや多い”と判断する。そして、第４図
の吸込力推論ルール記憶手段27の記憶内容により吸込力
演算手段29は吸込力メンバーシップ関数記憶手段28の各
メンバーシップ関数のウエイト付けを前件部ミニマム演
算手段の結論により行い、重心演算手段により吸込力を
決定し、制御手段30を制御してファンモータ19の吸込力
を制御する。The operation of the above structure will be described. Pressure value detecting means
When the output of 20 is point A in Fig. 3 (a), the "high" membership function is about
Since the 2/3, "normal" membership function has a weight of about 1/3, the pressure value adaptability calculating means 25 determines that the pressure value is slightly high. Further, when the output of the change rate detecting means 21 is point B in FIG. 3 (b), the change rate matching degree calculating means is in the same frame.
26 judges that the rate of change is “somewhat high”. The suction force calculation means 29 weights each membership function of the suction force membership function storage means 28 according to the stored contents of the suction force inference rule storage means 27 of FIG. 4 based on the conclusion of the antecedent part minimum calculation means. The center of gravity calculation means determines the suction force, and the control means 30 is controlled to control the suction force of the fan motor 19.
発明の効果 以上の実施例から明らかなように本発明によれば、フ
ァジイ推論器は圧力値検出手段と、変化率検出手段の出
力によりファンモータの吸込力を決定するようにしたか
ら、床面の状態、集塵袋内の塵埃量などを総合的に検出
して吸込力を制御するため、各種床面に最適の操作感が
得られ、かつ十分な集塵効果が得られ、きめ細かい掃除
ができる。EFFECTS OF THE INVENTION As is apparent from the above embodiments, according to the present invention, the fuzzy reasoner determines the suction force of the fan motor by the pressure value detecting means and the output of the change rate detecting means. Condition, the amount of dust in the dust bag, etc. are comprehensively detected to control the suction force, so an optimal operation feeling can be obtained on various floors, and a sufficient dust collection effect can be obtained for fine cleaning. it can.
第１図は本発明の一実施例の電気掃除機のブロック図、
第２図は同電気掃除機の要部ブロック図、第３図（ａ）
〜（ｃ）はそれぞれ同電気掃除機のファジイ推論器に記
憶したメンバーシップ関数を示す図、第４図は同ファジ
イ推論器に記憶した吸込力推論ルールを示す図、第５図
は従来の電気掃除機の斜視図、第６図は同電気掃除機の
塵センサの断面図、第７図は同電気掃除機の回路図であ
る。 18……圧力センサ、19……ファンモータ、20……圧力値
検出手段、21……変化率検出手段、22……ファジイ推論
器。FIG. 1 is a block diagram of an electric vacuum cleaner according to an embodiment of the present invention,
FIG. 2 is a block diagram of essential parts of the electric vacuum cleaner, and FIG. 3 (a).
~ (C) is a diagram showing the membership function stored in the fuzzy inference device of the vacuum cleaner, Fig. 4 is a diagram showing the suction force inference rule stored in the fuzzy inference device, Fig. 5 is a conventional electric FIG. 6 is a perspective view of the vacuum cleaner, FIG. 6 is a sectional view of a dust sensor of the vacuum cleaner, and FIG. 7 is a circuit diagram of the vacuum cleaner. 18 ... Pressure sensor, 19 ... Fan motor, 20 ... Pressure value detecting means, 21 ... Change rate detecting means, 22 ... Fuzzy reasoning device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 安部 秀二 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 平１−198520（ＪＰ，Ａ) 特開 平１−274797（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuji Abe 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP 1-198520 (JP, A) JP 1- 274797 (JP, A)
Claims (1)
ンサの絶対値を検出する圧力値検出手段と、前記圧力セ
ンサの圧力変化を検出する変化率検出手段と、前記圧力
値検出手段と変化率検出手段とで検出した各種検出信号
を総合入力し、これら各種検出信号を基にファジィ推論
を行うことによりファンモータの吸込力を決定するファ
ジィ推論器とを備え、前記ファジィ推論器は前記各種検
出信号からファンモータの吸込力を推論するルールを有
し、前記ルールにつき各種検出信号と前件部メンバーシ
ップ関数から得られる適合度によりルール後件部に重み
づけを行い、この重みづけしたルールの結論を合成した
結果に基づいてファンモータの吸込力を決定する電気掃
除機。1. A pressure value detecting means for detecting an absolute value of a pressure sensor for detecting a negative pressure at a front portion of a fan motor, a change rate detecting means for detecting a pressure change of the pressure sensor, and the pressure value detecting means. The rate of change detection means and the various detection signals detected by the comprehensive input, and fuzzy reasoning based on these various detection signals to determine the suction force of the fan motor, and a fuzzy reasoning device, wherein the fuzzy reasoning device There is a rule that infers the suction force of the fan motor from various detection signals, and the rule consequent part is weighted by the suitability obtained from the various detection signals and the antecedent part membership function for this rule, and this weighting is performed. An electric vacuum cleaner that determines the suction force of a fan motor based on the result of combining the conclusions of the rules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244384A JPH0824654B2 (en) | 1990-09-14 | 1990-09-14 | Electric vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2244384A JPH0824654B2 (en) | 1990-09-14 | 1990-09-14 | Electric vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04122340A JPH04122340A (en) | 1992-04-22 |
| JPH0824654B2 true JPH0824654B2 (en) | 1996-03-13 |
Family
ID=17117884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2244384A Expired - Fee Related JPH0824654B2 (en) | 1990-09-14 | 1990-09-14 | Electric vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0824654B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0686746A (en) * | 1992-09-09 | 1994-03-29 | Hitachi Ltd | Vacuum cleaner |
| EP0636340A1 (en) * | 1993-07-28 | 1995-02-01 | Laboratoires D'electronique Philips S.A.S. | Suction cleaner having floor nature detecting means |
| FR2708188A1 (en) * | 1993-07-28 | 1995-02-03 | Philips Laboratoire Electroniq | Vacuum cleaner with means of soil detection and adjustment of the engine power according to the detected soil. |
| EP0933058A1 (en) * | 1998-01-30 | 1999-08-04 | STMicroelectronics S.r.l. | Intelligent suction device capable of automatically adapting the suction force according to the conditions of the surface, particularly for vacuum cleaners and the like |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01198520A (en) * | 1988-02-03 | 1989-08-10 | Hitachi Ltd | vacuum cleaner |
| JPH0728980B2 (en) * | 1988-04-27 | 1995-04-05 | 松下電器産業株式会社 | Washing machine |
-
1990
- 1990-09-14 JP JP2244384A patent/JPH0824654B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04122340A (en) | 1992-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |