CN207279755U - A kind of non-contact control device of range hood - Google Patents
A kind of non-contact control device of range hood Download PDFInfo
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- CN207279755U CN207279755U CN201721381971.0U CN201721381971U CN207279755U CN 207279755 U CN207279755 U CN 207279755U CN 201721381971 U CN201721381971 U CN 201721381971U CN 207279755 U CN207279755 U CN 207279755U
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- infrared
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- gesture induction
- induction device
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- 230000006698 induction Effects 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
It the utility model is related to a kind of non-contact control device of range hood, two groups infrared gesture induction device including being arranged on smoke exhauster housing, and the detection signal analysis device being connected with two groups infrared gesture induction device, every group infrared gesture induction device includes an infrared receiving device and at least one infrared launcher is characterized in that：The distance between infrared receiving device in two groups infrared gesture induction device L meets：H*tan(θ)+H*tan(β)+W_min<L<H*tan(θ)+H*tan(β)+W_max.Compared with prior art, the utility model has the advantage of：Pass through the design of position between two groups infrared gesture induction device, user gesture distance of reaction need not be controlled according to the intensity of infrared emission signal, infrared emission signal strength can be so facilitated to adjust, ensure that infrared receiving device can preferably detect infrared signal, while can also realize that the gesture operation signal in maximum distance of reaction will not interfere with each other.
Description
Technical field
It the utility model is related to a kind of non-contact control device of range hood.
Background technology
At present, most of kitchen ventilator of in the market is all operated by contact, but due to kitchen work
Particular surroundings, when user is stained with oil stain or flour on hand, or the displeased button for removing operation covering oil stain of clean hand when
Wait, contact operation brings many worries for the user of kitchen appliance.
In the prior art, although having there is some kitchen ventilator control methods using the non-contact control of infrared signal,
It is substantially by controlling the strength control distance of reaction of infrared signal, while controls the speed that gesture is slided to avoid people's soma
Disturb, especially the interference on head.In addition, then simply received for the gesture that left and right is brandished according to different infrared receiving devices
The time order and function order of signal judges.These control methods also lack setting for science for the position distribution of infrared transceiver device
Meter, may cause one group of infrared receiving device to receive the letter that other multigroup infrared launchers are launched for unscientific distribution
Number, judge that operating gesture then easily produces erroneous judgement according to the time order and function order for receiving signal in this case.It is existing at the same time
Control method in technology also without the difference for really analyzing gesture operation and interference signal, judges to detect the validity of signal,
Application difficult.
Utility model content
Technical problem to be solved in the utility model is to provide one kind for the above-mentioned prior art not weaken infrared letter
The non-contact control device of the range hood of distance of reaction can be controlled under number strength conditions.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of non-contact control of range hood
Device, including the two groups infrared gesture induction device being arranged on smoke exhauster housing, and with two groups infrared gesture induction device
Its two groups infrared gesture induction devices are denoted as the infrared gesture induction device of a groups and b by the detection signal analysis device of connection respectively
The infrared gesture induction device of group；Every group infrared gesture induction device includes an infrared receiving device and at least one infrared hair
Injection device, infrared receiving device and all infrared launchers in every group infrared gesture induction device with detection signal point
Analysis apparatus connects, it is characterised in that：The distance between infrared receiving device in two groups infrared gesture induction device L meets：
H*tan(θ)+H*tan(β)+W_min<L<H*tan(θ)+H*tan(β)+W_max；
Wherein, W_min is the minimum value of human hand width, and W_min is taken more than the preset constant in 50mm, and W_max is human hand
The maximum of width, W_max take the preset constant less than 200mm；θ is the infrared gesture induction device of a groups close to the infrared hand of b groups
The maximum infrared signal launch angle in gesture sensing device direction, β are the infrared gesture induction device of b groups close to the infrared gesture of a groups
The maximum IR signal reception angle in sensing device direction, H should distances for default maximum.
Straight line is formed between two infrared receiving devices in 2 groups infrared gesture induction device, which is
Gesture operation direction.
Every group infrared gesture induction device includes multiple infrared launchers, and multiple infrared launchers are distributed in red
Infrared receiving device is the center of circle, and radius is less than in the circle of 30m.
In every group infrared gesture induction device, between infrared receiving device and multiple infrared launchers have infrared light every
From plate.
In every group infrared gesture induction device, infrared receiving device and multiple infrared launchers are externally provided with filtering ambient light
Optical filter.
Compared with prior art, the utility model has the advantage of：Pass through position between two groups infrared gesture induction device
Design, user gesture distance of reaction need not be controlled according to the intensity of infrared emission signal, can so facilitate infrared
Launch signal strength to adjust, ensure that infrared receiving device can preferably detect infrared signal, while can also realize and feel in maximum
Gesture operation signal that should be in will not interfere with each other.
Brief description of the drawings
Fig. 1 is that the structure that the non-contact control device of range hood in the utility model embodiment is installed on kitchen ventilator is shown
It is intended to.
Fig. 2 is the structure diagram of the non-contact control device of range hood in the utility model embodiment.
Fig. 3 is the control flow chart of the non-contact control device of range hood in the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
The non-contact control device of range hood as shown in Figure 1, 2, including be arranged on 6 front of smoke exhauster housing
(for European-style range hood, two groups infrared gesture induction device can be arranged on exhaust fume collecting hood front to two groups infrared gesture induction device
On control panel), be denoted as the infrared infrared gesture induction device B of gesture induction device A and b group of a groups respectively, and with two groups of infrared gestures
The detection signal analysis device 3 of sensing device connection, the infrared gesture induction device B knots of infrared gesture induction device A and the b group of a groups
Structure is identical, including an infrared receiving device 1 and at least one infrared launcher 2, two groups of infrared gestures in the present embodiment
Sensing device includes an infrared receiving device 1 and an infrared launcher 2, infrared receiving device and multiple infrared emissions
There is infrared light isolation board 4, smoke exhauster housing front is provided with the peace of the infrared gesture induction device of installation group respectively between device
Hole is filled, the smoke exhauster housing outside mounting hole is made of light tight material；The outer surface of mounting hole is equipped with the filter of filtering ambient light
Mating plate 5；In addition, the infrared launcher 2 in every group infrared gesture induction device can be arranged to it is multiple, such as 3,4,5,
6 etc., multiple infrared launchers 2 are distributed in infrared receiving device 1 as the center of circle, every group infrared in circle of the radius less than 30m
In gesture induction device, more preferable signal detection performance can be played；Infrared receiver dress in every group infrared gesture induction device
Put 1 and infrared launcher 2 with detection signal analysis device 3 be connected, the infrared receiver in two groups infrared gesture induction device
The distance between device L meets：
H*tan(θ)+H*tan(β)+W_min<L<H*tan(θ)+H*tan(β)+W_max；
Wherein, W_min is the minimum value of human hand width, and W_min is taken more than the preset constant in 50mm, and W_max is human hand
The maximum of width, W_max take the preset constant less than 200mm；θ is the infrared gesture induction device of a groups close to the infrared hand of b groups
The maximum infrared signal launch angle in gesture sensing device direction, β are the infrared gesture induction device of b groups close to the infrared gesture of a groups
The maximum IR signal reception angle in sensing device direction, when two groups infrared gesture induction device installed on kitchen ventilator with
Afterwards, since the mounting hole for being used to install infrared gesture induction device on kitchen ventilator is fixed, the value of θ and β are to measure
Come；H should distance for default maximum.
2 infrared receiving devices are centrally formed straight line, which is gesture operation direction.Set by the distribution
Meter, distance of reaction according to the strength control of infrared emission signal, do not facilitate the adjusting of infrared emission signal strength, ensure infrared connect
Receiving apparatus preferably detects infrared signal, while can also realize that the gesture operation signal in maximum distance of reaction will not mutually be done
Disturb.
The control method of the non-contact control device of above-mentioned range hood is：Detection signal analysis device makes two groups of infrared hands
Gesture sensing device works at the same time, and output control signal as follows, shown in Figure 3：
S1：The testing result that signal analysis device reads two infrared receiving devices is detected, if two infrared receiver dresses
Put and be detected simultaneously by infrared signal, be then judged as the signal for exceeding maximum distance of reaction or object (such as head more than W_max
Portion) caused by interference signal, detection signal analysis device exports invalid control signal；
S2：If an only infrared receiving device detects infrared signal, it is infrared that detection signal analysis device records this
Reception device receives the duration of infrared signal, when the duration being more than the first preset value, detects signal analysis device
Using the infrared signal that the infrared receiving device receives as specific useful signal, if the duration is less than the first preset value,
The infrared receiving device is received infrared signal as noise signal by detection signal analysis device；
S3：On the basis of S2, if detection signal analysis device judges the infrared receiver in the infrared gesture induction device of a groups
The infrared signal that device receives is specific useful signal, starts timing, the timing and continuous time is represented with parameter T_a, if T_a surpasses
The second setting value is crossed, detection signal analysis device exports invalid control signal, and T_a, which resets, to reset；If T_a is not above second
Predetermined value, detection signal analysis device judge the infrared signal that the infrared receiving device in the infrared gesture induction device of b groups receives
Whether it is specific useful signal, if so, starting timing, the timing and continuous time is represented with parameter T_b, if T_b is set more than second
Definite value, detection signal analysis device export invalid control signal, and T_b, which resets, to reset, if T_b is not above second predetermined value,
Detection signal analysis device continues to judge to receive number of the infrared signal for noise signal in two groups infrared gesture induction device
Whether exceed default tolerance number, occur noise in infrared signal if received in any one group infrared gesture induction device
The number of signal exceedes default tolerance number, then is judged as poor signal quality, and generally head etc. is irregular, the object of out-of-flatness
The signal of return, detection signal analysis device export invalid control signal；If received in two groups infrared gesture induction device
Infrared signal is not above default tolerance number for the number of noise signal, then signal analysis device is defeated continues to judge T_ for detection
Whether a is more than T_b, if so, detection signal analysis device output first gesture control signal；If T_a is less than T_b, detection letter
Number analytical equipment output second gesture control signal.Kitchen ventilator then can export two gesture controls according to detection signal analysis device
Signal processed is controlled rotation speed of fan, switching on and shutting down.
Claims (4)
1. a kind of non-contact control device of range hood, including two groups of infrared gesture inductions being arranged on smoke exhauster housing
Device, and the detection signal analysis device being connected with two groups infrared gesture induction device, by its two groups infrared gesture induction devices
The infrared gesture induction device of a groups and the infrared gesture induction device of b groups are denoted as respectively；Every group infrared gesture induction device includes one
A infrared receiving device and at least one infrared launcher, infrared receiving device and institute in every group infrared gesture induction device
Some infrared launchers are connected with detection signal analysis device, it is characterised in that：In two groups infrared gesture induction device
The distance between infrared receiving device L meets：
H*tan(θ)+H*tan(β)+W_min<L<H*tan(θ)+H*tan(β)+W_max；
Wherein, W_min is the minimum value of human hand width, and W_min is taken more than the preset constant in 50mm, and W_max is human hand width
Maximum, W_max takes the preset constant less than 200mm；θ is the infrared gesture induction device of a groups close to the infrared gesture sense of b groups
The maximum infrared signal launch angle in device direction is answered, β is the infrared gesture induction device of b groups close to the infrared gesture induction of a groups
The maximum IR signal reception angle in device direction, H should distances for default maximum.
2. the non-contact control device of range hood according to claim 1, it is characterised in that：Every group of infrared gesture induction
Device includes multiple infrared launchers, and multiple infrared launchers are distributed in using infrared receiving device as the center of circle, and radius is small
In in the circle of 30m.
3. the non-contact control device of range hood according to claim 2, it is characterised in that：Every group of infrared gesture induction
In device, there is infrared light isolation board between infrared receiving device and multiple infrared launchers.
4. the non-contact control device of range hood according to claim 1, it is characterised in that：Every group of infrared gesture induction
In device, infrared receiving device and multiple infrared launchers are externally provided with the optical filter for filtering ambient light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721381971.0U CN207279755U (en) | 2017-10-25 | 2017-10-25 | A kind of non-contact control device of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721381971.0U CN207279755U (en) | 2017-10-25 | 2017-10-25 | A kind of non-contact control device of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207279755U true CN207279755U (en) | 2018-04-27 |
Family
ID=61978473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721381971.0U Withdrawn - After Issue CN207279755U (en) | 2017-10-25 | 2017-10-25 | A kind of non-contact control device of range hood |
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| CN (1) | CN207279755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080361A1 (en) * | 2017-10-25 | 2019-05-02 | 宁波方太厨具有限公司 | Non-contact control device and control method for range hood |
| CN109808469A (en) * | 2019-02-18 | 2019-05-28 | 上海尚宏汽车天窗有限公司 | The vehicle dormer window of gesture identification control |
| CN111288513A (en) * | 2020-01-10 | 2020-06-16 | 余姚市远望电器有限公司 | Control method and system of range hood, computer storage medium and range hood |
-
2017
- 2017-10-25 CN CN201721381971.0U patent/CN207279755U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019080361A1 (en) * | 2017-10-25 | 2019-05-02 | 宁波方太厨具有限公司 | Non-contact control device and control method for range hood |
| CN109708168A (en) * | 2017-10-25 | 2019-05-03 | 宁波方太厨具有限公司 | A kind of the non-contact control device and control method of range hood |
| US11473782B2 (en) | 2017-10-25 | 2022-10-18 | Ningbo Fotile Kitchen Ware Co., Ltd. | Contactless control device for a range hood and control method thereof |
| CN109708168B (en) * | 2017-10-25 | 2024-01-16 | 宁波方太厨具有限公司 | Non-contact control device and control method for range hood |
| CN109808469A (en) * | 2019-02-18 | 2019-05-28 | 上海尚宏汽车天窗有限公司 | The vehicle dormer window of gesture identification control |
| CN111288513A (en) * | 2020-01-10 | 2020-06-16 | 余姚市远望电器有限公司 | Control method and system of range hood, computer storage medium and range hood |
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Granted publication date: 20180427 Effective date of abandoning: 20240116 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180427 Effective date of abandoning: 20240116 |
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