JP2730264B2 - Vacuum cleaner - Google Patents
Vacuum cleanerInfo
- Publication number
- JP2730264B2 JP2730264B2 JP2121593A JP12159390A JP2730264B2 JP 2730264 B2 JP2730264 B2 JP 2730264B2 JP 2121593 A JP2121593 A JP 2121593A JP 12159390 A JP12159390 A JP 12159390A JP 2730264 B2 JP2730264 B2 JP 2730264B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- floor
- cleaning surface
- level
- output
- 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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は清掃面の種類を正確に識別することができる
ようにした掃除機に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner capable of accurately identifying the type of cleaning surface.
従来の技術 従来の掃除機の床面センサは、床ブラシに取り付けら
れた発光素子と受光素子と、この受光素子の出力の初期
レベルを検知するレベル検出手段と、このレベル検出手
段の出力により、清掃面の種類を判断する床面判断手段
と、床面判断手段の出力により制御される床ブラシモー
タを備え、発光素子が発光し清掃面で反射された反射光
を受光素子が受けてこの受光量に対応する信号を検知・
識別することにより、清掃面の種類を判断するものであ
った。BACKGROUND ART A floor sensor of a conventional vacuum cleaner has a light emitting element and a light receiving element attached to a floor brush, a level detecting means for detecting an initial level of an output of the light receiving element, and an output of the level detecting means. A light-emitting element that emits light and emits light reflected by the cleaning surface; the light-receiving element receives the reflected light; Detects the signal corresponding to the amount
By identifying, the type of the cleaning surface was determined.
発明が解決しようとする課題 しかしこの従来の方式は、清掃面の色によって発光素
子の反射光量が大きく変わり、清掃面の種類を正確に識
別することができず、清掃面の種類に応じた床ブラシを
駆動することができないという課題があった。SUMMARY OF THE INVENTION However, in this conventional method, the amount of reflected light of the light emitting element greatly changes depending on the color of the cleaning surface, and the type of the cleaning surface cannot be accurately identified. There was a problem that the brush could not be driven.
本発明は、このような従来の課題を解決しようとする
もので、清掃面の色による反射光の変動による影響を避
けて、清掃面の種類を正確に識別し、清掃面の種類に応
じた床ブラシの駆動が自動的にできる掃除機を提供する
ことを目的とする。The present invention is intended to solve such a conventional problem, and avoids the influence of the fluctuation of the reflected light due to the color of the cleaning surface, accurately identifies the type of the cleaning surface, and responds to the type of the cleaning surface. An object of the present invention is to provide a vacuum cleaner capable of automatically driving a floor brush.
課題を解決するための手段 前記の目的を達成するために本発明の掃除機は、床ノ
ズルに取り付けられた発光素子および受光素子と、この
受光素子の出力の時間に対する変動量を検出する受光変
動量検出手段と、この受光素子の出力の初期レベルを検
知するレベル検出手段と、受光変動量検出手段とレベル
検出手段の出力により、清掃面の種類を判断する床面判
断手段と、床面判断手段の出力により制御される床ブラ
シモータを備えてなるものである。Means for Solving the Problems In order to achieve the above object, a vacuum cleaner according to the present invention includes a light emitting element and a light receiving element attached to a floor nozzle, and a light receiving fluctuation detecting a fluctuation amount of the output of the light receiving element with respect to time. Level detecting means, level detecting means for detecting an initial level of the output of the light receiving element, floor detecting means for determining the type of cleaning surface based on the output of the light receiving fluctuation detecting means and the output of the level detecting means, A floor brush motor controlled by the output of the means.
作用 受光素子は清掃面で反射した発光素子の光を受光し、
レベル検出手段はこの受光レベルを示す信号を床面判断
手段に伝達する。また受光変動量検出手段は、清掃面上
で床ノズルを動かしたときの受光素子の受光量の時間に
対する変動量を検出しており、同様にこの信号を床面判
断手段に伝達している。The light receiving element receives the light of the light emitting element reflected on the cleaning surface,
The level detecting means transmits a signal indicating the light receiving level to the floor determining means. The light-receiving variation detecting means detects the variation of the light-receiving amount of the light-receiving element with respect to time when the floor nozzle is moved on the cleaning surface, and similarly transmits this signal to the floor-surface determining means.
レベル検出手段が検出する受光素子の受光量は、特に
清掃面が床面である場合に清掃面の色による影響を大き
く受けるものである。すなわち、清掃面によって吸収さ
れる光量が特に黒系統の色の場合に大きくなるものであ
る。従って、本来、床面の場合にはじゅうたんや畳の場
合よりも大きな反射光量が得られるべきところを、床面
の色が黒系統である場合には畳の場合あるいは絨毯の場
合よりも少なくなってしまって、誤検知してしまうもの
である。The amount of light received by the light receiving element detected by the level detecting means is greatly affected by the color of the cleaning surface, particularly when the cleaning surface is a floor surface. That is, the amount of light absorbed by the cleaning surface is particularly large in the case of a black color. Therefore, the amount of reflected light that should originally be obtained in the case of a floor surface is larger than that in the case of carpets and tatami mats. In other words, it is erroneously detected.
そこで本発明では、床ノズルを動かしたときの受光素
子の受光量の時間に対する変動量を検出する受光変動量
検出手段の信号を床面判断手段に伝達しているものであ
る。受光変動量検出手段が検出する受光変動量は、清掃
面の色による影響を受けることが無く、清掃面の種類に
よって決定されるものである。床面判断手段は、レベル
検出手段の信号と受光変動量検出手段の信号の両方を使
用するようにして清掃面の種類を判断しているものであ
る。Therefore, in the present invention, the signal of the light reception fluctuation amount detecting means for detecting the fluctuation amount of the light reception amount of the light receiving element with respect to time when the floor nozzle is moved is transmitted to the floor determination means. The light-receiving variation detected by the light-receiving variation detecting means is not affected by the color of the cleaning surface and is determined by the type of the cleaning surface. The floor determining means determines the type of the cleaning surface by using both the signal of the level detecting means and the signal of the light receiving fluctuation amount detecting means.
実施例 以下本発明の一実施例について第１図から第３図を基
に説明する。第１図において、１は反射型の発光素子
で、床ノズル10に取り付けられており、清掃面８に対し
て光を発する。２は同様に床ノズル10に取り付けられて
おり、前記発光素子１による光が清掃面８で反射された
反射光を受光し、この受光量に応じた信号を発生する受
光素子である。３は受光素子２の出力の一定時間内での
変動量を検出する受光変動量検出手段である。４は受光
素子２の初期出力のレベルを検知するレベル検出手段で
ある。５は前記受光変動量検出手段３とレベル検出手段
４との出力により清掃面８の種類を判断する床面判断手
段である。６は前記床面判断手段５の出力を受けて駆動
される床ブラシモータ、７は床ブラシモータ６によって
駆動される床ブラシ、９は床ノズル10が接続されている
ホースである。なお、受光変動量検出手段３は本実施例
においてはマイコンで構成している。Embodiment An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 1 denotes a reflection type light emitting element which is attached to a floor nozzle 10 and emits light to a cleaning surface 8. Reference numeral 2 denotes a light receiving element which is similarly attached to the floor nozzle 10 and receives light reflected by the light emitting element 1 reflected on the cleaning surface 8 and generates a signal corresponding to the amount of received light. Reference numeral 3 denotes a light-receiving variation detecting unit that detects the variation of the output of the light-receiving element 2 within a predetermined time. Reference numeral 4 denotes level detection means for detecting the level of the initial output of the light receiving element 2. Reference numeral 5 denotes a floor determining means for determining the type of the cleaning surface 8 based on the outputs of the light-receiving variation detecting means 3 and the level detecting means 4. Reference numeral 6 denotes a floor brush motor driven by receiving the output of the floor determination means 5, reference numeral 7 denotes a floor brush driven by the floor brush motor 6, and reference numeral 9 denotes a hose to which a floor nozzle 10 is connected. In this embodiment, the light-receiving variation detecting means 3 is constituted by a microcomputer.
以下本実施例の作用を説明する。使用者が床ノズル10
を清掃面８上で前後に移動操作すると、発光素子１が発
生した光が清掃面８で反射され、清掃面８の状態に応じ
た量の反射光を受光素子２が受光する。受光素子２はこ
の受光量に応じた信号を発生し、受光変動量検出手段３
とレベル検出手段４に出力する。レベル検出手段４は受
光素子２の初期出力レベルを検知する。この初期出力レ
ベルは第２図に示すように清掃面の種類に応じた顕著な
特性を有している。即ち、絨毯の場合は最もレベルが低
く、畳、板床の白色の順に高くなっている。これは清掃
面８が発光素子１による入射光線を反射する反射面とし
て作用する場合、例えば板床等の場合は表面が滑らかで
あるため、反射率が高く、従って初期出力レベルも高く
でるものである。また板床の色が黒い場合は、光が吸収
されるため初期出力レベルは、絨毯や畳の場合よりも低
くできるものである。つまり、反射光のレベル検出手段
４による初期レベルの検知だけでは、板床の色が影響し
て絨毯・畳・板床の識別ができないものである。そこで
本実施例では受光変動量検出手段３により、一定時間内
での受光量の変動量を検知している。この変動量の清掃
面に対する特性は第３図に示す通りである。つまり、絨
毯の場合は表面が柔らかく凸凹しているため、この変動
量は最も大きい。また板床やフロアーの場合は、表面が
硬く平坦であるため、この変動量は最も小さい。つま
り、反射光量の変動量を検知することを併用することに
よって、清掃面８の識別が正確にできるものである。そ
こで本実施例では床面判断手段５は、レベル検出手段４
と受光変動量検出手段３の情報から清掃面の種類を次の
ように判断するようにしている。即ち、初期出力レベル
が低くて変動量が大きい場合は絨毯、初期出力レベルが
高くて変動量が小さい場合は板床、初期出力レベルも変
動量も中くらいの場合は畳と判断するものである。この
ように床面判断手段５は、受光変動量検出手段３とレベ
ル検出手段４との情報から清掃面８の種類を判断し、こ
れに応じた信号を床ブラシモータ６に出力する。こうし
て床ノズルのブラシは、清掃面の種類に適合した形で駆
動される。Hereinafter, the operation of the present embodiment will be described. When the user uses the floor nozzle 10
Is moved back and forth on the cleaning surface 8, the light generated by the light emitting element 1 is reflected on the cleaning surface 8, and the light receiving element 2 receives an amount of reflected light according to the state of the cleaning surface 8. The light receiving element 2 generates a signal corresponding to the amount of received light, and
Is output to the level detecting means 4. The level detector 4 detects an initial output level of the light receiving element 2. This initial output level has remarkable characteristics according to the type of cleaning surface as shown in FIG. That is, in the case of a carpet, the level is the lowest, and is higher in the order of the tatami mat and the white color of the board floor. This is because when the cleaning surface 8 acts as a reflecting surface for reflecting the incident light from the light emitting element 1, for example, in the case of a plate floor, the surface is smooth, so that the reflectance is high, and therefore the initial output level is also high. . When the color of the floor is black, light is absorbed, so that the initial output level can be lower than that of a carpet or tatami mat. In other words, the detection of the initial level by the reflected light level detection means 4 alone does not allow identification of the carpet / tatami / plate floor due to the influence of the color of the plate floor. Therefore, in the present embodiment, the fluctuation amount of the received light amount within a fixed time is detected by the received light fluctuation amount detecting means 3. The characteristics of the amount of fluctuation with respect to the cleaning surface are as shown in FIG. That is, in the case of a carpet, since the surface is soft and uneven, this variation is the largest. In the case of a plate floor or a floor, the amount of variation is the smallest because the surface is hard and flat. That is, the cleaning surface 8 can be accurately identified by using the detection of the amount of change in the amount of reflected light. Therefore, in this embodiment, the floor determining means 5 is
The type of the cleaning surface is determined as follows from the information of the light reception fluctuation amount detection means 3. That is, a carpet is determined when the initial output level is low and the fluctuation amount is large, a board floor when the initial output level is high and the fluctuation amount is small, and a tatami mat when the initial output level and the fluctuation amount are medium. As described above, the floor surface determining unit 5 determines the type of the cleaning surface 8 based on the information of the light reception fluctuation amount detecting unit 3 and the level detecting unit 4 and outputs a signal corresponding to this to the floor brush motor 6. The brush of the floor nozzle is thus driven in a manner adapted to the type of cleaning surface.
発明の効果 以上のように本発明の掃除機によれば、床ノズルに取
り付けられた発光素子および受光素子と、この受光素子
の出力の時間に対する変動量を検出する受光変動量検出
手段と、この受光素子の出力の初期レベルを検知するレ
ベル検出手段と、受光変動量検出手段とレベル検出手段
の出力により、清掃面の種類を判断する床面判断手段
と、床面判断手段の出力により制御される床ブラシモー
タを備えてなるものであり、清掃面の色による影響を避
けることができ、清掃面の種類を正確に識別し清掃面の
種類に応じた床ブラシの駆動が自動的にできるものであ
る。Effects of the Invention As described above, according to the vacuum cleaner of the present invention, a light-emitting element and a light-receiving element attached to a floor nozzle, a light-receiving fluctuation amount detecting unit that detects a fluctuation amount of the output of the light-receiving element with respect to time, Level detection means for detecting the initial level of the output of the light receiving element, floor light determination means for determining the type of cleaning surface based on the output of the light reception fluctuation amount detection means and the output of the level detection means, and control based on the output of the floor surface determination means That can avoid the influence of the color of the cleaning surface, can accurately identify the type of cleaning surface, and can automatically drive the floor brush according to the type of cleaning surface. It is.
第１図は本発明の一実施例を示す掃除機の床面センサ部
の断面図、第２図は同清掃面の種類による反射光量の特
性を示す特性図、第３図は同清掃面の種類による反射光
量の一定時間内での変動特性を示す特性図である。 １……発光素子、２……受光素子、３……受光変動量検
出手段、４……レベル検出手段、５……床面判断手段、
６……床ブラシモータ、８……清掃面、10……床ノズ
ル。FIG. 1 is a cross-sectional view of a floor sensor unit of a vacuum cleaner showing one embodiment of the present invention, FIG. 2 is a characteristic diagram showing the characteristics of the amount of reflected light depending on the type of the cleaning surface, and FIG. FIG. 9 is a characteristic diagram illustrating a variation characteristic of a reflected light amount within a certain time according to types. 1 light emitting element, 2 light receiving element, 3 light receiving fluctuation amount detecting means, 4 level detecting means, 5 floor floor determining means,
6 ... floor brush motor, 8 ... cleaning surface, 10 ... floor nozzle.
Claims (1)
受光素子と、この受光素子の出力の時間に対する変動量
を検出する受光変動量検出手段と、この受光素子の出力
の初期レベルを検知するレベル検出手段と、受光変動量
検出手段とレベル検出手段の出力により、清掃面の種類
を判断する床面判断手段と、床面判断手段の出力により
制御される床ブラシモータを備えてなる掃除機。1. A light-emitting element and a light-receiving element attached to a floor nozzle, light-receiving fluctuation detecting means for detecting a fluctuation of an output of the light-receiving element with respect to time, and a level for detecting an initial level of an output of the light-receiving element. A vacuum cleaner comprising: a detecting unit; a floor determining unit that determines a type of a cleaning surface based on outputs of a light-receiving variation detecting unit and a level detecting unit; and a floor brush motor controlled by an output of the floor determining unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121593A JP2730264B2 (en) | 1990-05-11 | 1990-05-11 | Vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121593A JP2730264B2 (en) | 1990-05-11 | 1990-05-11 | Vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0417828A JPH0417828A (en) | 1992-01-22 |
| JP2730264B2 true JP2730264B2 (en) | 1998-03-25 |
Family
ID=14815095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2121593A Expired - Fee Related JP2730264B2 (en) | 1990-05-11 | 1990-05-11 | Vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2730264B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102112980B1 (en) | 2016-10-27 | 2020-05-20 | 니토 코키 가부시키가이샤 | Liquid pump |
| CN107578038A (en) * | 2017-09-30 | 2018-01-12 | 深圳拓邦股份有限公司 | A kind of ground identification device and cleaning equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648942A (en) * | 1987-06-30 | 1989-01-12 | Toshiba Corp | Electric cleaner |
| JPH01198518A (en) * | 1988-02-01 | 1989-08-10 | Mitsubishi Electric Corp | Vacuum cleaner |
-
1990
- 1990-05-11 JP JP2121593A patent/JP2730264B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0417828A (en) | 1992-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |