CN107741041B - A kind of control method and air quantity self-adjusting kitchen ventilator of air quantity self-adjusting kitchen ventilator - Google Patents
A kind of control method and air quantity self-adjusting kitchen ventilator of air quantity self-adjusting kitchen ventilator Download PDFInfo
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- CN107741041B CN107741041B CN201710979652.8A CN201710979652A CN107741041B CN 107741041 B CN107741041 B CN 107741041B CN 201710979652 A CN201710979652 A CN 201710979652A CN 107741041 B CN107741041 B CN 107741041B
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- air quantity
- kitchen ventilator
- control method
- oil smoke
- value
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a kind of control method of air quantity self-adjusting kitchen ventilator and air quantity self-adjusting kitchen ventilators, comprising the following steps: (1), to one default a reference value V of oil smoke sensor settings0；(2) within the T1 time of interval, multiple sensing datas is acquired and calculate average value V1；(3) judge V1And V0Size；(4) updated a reference value V is exported0, the average value V of sampling T seconds inner sensors output, by V and V0Compare, so as to adjust the switch of blower and the state of gear.By the present invention in that carrying out dynamic update to oil smoke sensor Ref value in real time with software algorithm, it ensure that the output variable quantity of sensor can correctly reflect the truth of kitchen fume, so that kitchen ventilator really realizes intelligentized control method.
Description
Technical field
The present invention relates to a kind of control method of air quantity self-adjusting kitchen ventilator and air quantity self-adjusting kitchen ventilators.
Background technique
With intelligentized development, intelligent kitchen has been logined in the daily life of people.The intelligent control of kitchen ventilator
System has become the important component in intelligent kitchen, and to realize the intelligentized control method of kitchen ventilator must then be passed by oil smoke
Sensor is realized.
Currently there are a large amount of oil smoke sensors, generally assess kitchen fume using the variable quantity of its output valve
Size, control the operation of kitchen ventilator on this basis.But oil smoke sensor generally existing a reference value drift phenomenon, it leads
The variable quantity for causing it to measure can not correctly react the oil smoke actual conditions in kitchen.
Summary of the invention
In view of the above problems, the present invention proposes the control method and air quantity self-adjusting oil smoke of a kind of air quantity self-adjusting kitchen ventilator
Machine carries out dynamic update to oil smoke sensor Ref value in real time by using software algorithm.
The technical scheme of the present invention is realized as follows: the control method of this air quantity self-adjusting kitchen ventilator, including it is following
Step:
(1), to one default a reference value V of oil smoke sensor settings0；
(2), within the T1 time of interval, multiple sensing datas is acquired and calculate average value V1；
(3) judge V1And V0Size:
Work as V1≤V0When, update a reference value V0=V1；
Work as V1> V0When, continue to sample multiple sensing datas and calculate average value to obtain N1、N2... when being all satisfied Nn>
V0When (n of n=1,2,3 ...), a reference value V is updated0=(N1+N2+N3+N4+N5)/5；Otherwise, return step (2)；
(4) updated a reference value V is exported0, the average value V of sampling T seconds inner sensors output, by V and V0Compare, thus
Adjust the switch of blower and the state of gear.
Further, the value range of the sampling time T is 15~30 seconds.
Further, the V and V0When comparing, it is equipped with correction value Δ V, i.e. V and (V0+ Δ V) compare, the value model of Δ V
Enclosing is 0.15~1.5V.
Further, described by V and (V0+ Δ V) when comparing, as V < (V0+ Δ V) when, blower gear reduces by one grade, if
Blower has shut down, then fan condition is constant；As V >=(V0+ Δ V) when, blower gear increases by one grade, while will keep air quantity t1
~t2 seconds.
Further, the value range of the time t1 is 60~90 seconds, and the value range of time t2 is 150~180
Second.
Further, the default a reference value V0Dynamic updating method is as follows: (1) within the T1 time of interval, according to 1
The multiple sensing datas of the speed sampling of a/second；(2) average value V is calculated1, judge V1With the difference of 60 data whether be greater than ±
|V|；(3) if it exists at least one difference be greater than ± | V |, then jump to 1) resampling；If it does not exist, judge V1And V0Size.
Further, the value range of the interval time T1 is 1~10 minute.
Further, the difference | V | value range is 0.05~0.5V.
Further, the oil smoke sensor is semiconductor principle gas sensor.
This air quantity self-adjusting kitchen ventilator, including blower, oil smoke sensor and control system, blower and control system electricity
Connection；Oil smoke sensor is for detecting oil smoke signal and being sent to control system；Control system receives the oil that oil smoke sensor is sent
Smoke signal, for dynamically updating a reference value V of oil smoke sensor0, it is same as being averaged the oil smoke signal received in T seconds
Value V and V0Compare；The control system is also used to according to V and V0Ratio size and adjust the switch of blower and the state of gear.
Beneficial effects of the present invention:
(1), come to carry out dynamic update to oil smoke sensor Ref value in real time by using software algorithm.
(2), it ensure that the output variable quantity of sensor can correctly reflect the truth of kitchen fume, so that oily
Smoke machine really realizes intelligentized control method.
(3), it is handled by the output signal to sensor, obtains real-time dynamic benchmark value, guarantee to sense with this
The difference of device output valve and a reference value can correctly reflect the actual conditions of kitchen fume.
(4), by the correction value Δ V being added in a certain range value, the sensitivity of sensor, correction value Δ V value are adjusted
Smaller, transducer sensitivity is higher；Correction value Δ V is bigger, and transducer sensitivity is lower.
(5), with the kitchen ventilator of this control method, be able to achieve the air quantity adjust automatically of real meaning, realize cigarette strong wind it is big,
The small wind of cigarette is small, smokeless calm.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is whole software control flow chart.
Fig. 2 is that dynamic updates a reference value flow chart.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: the control method of this air quantity self-adjusting kitchen ventilator, comprising the following steps:
(1), to one default a reference value V of oil smoke sensor settings0, as the basic value compared；
(2), within the T1 time of interval, multiple sensing datas is acquired and calculate average value V1；
(3) judge V1And V0Size:
Work as V1≤V0When, update a reference value V0=V1；
Work as V1> V0When, continue to sample multiple sensing datas and calculate average value to obtain N1、N2... when being all satisfied Nn>
V0When (n of n=1,2,3 ...), a reference value V is updated0=(N1+N2+N3+N4+N5)/5；Otherwise, return step (2)；
(4) updated a reference value V is exported0, the average value V of sampling T seconds inner sensors output, by V and V0Compare, thus
Adjust the switch of blower and the state of gear.
It by Real-time Monitoring Data, samples multiple numerical value and is compared, dynamic more new data more accurate can be learnt in environment
Correct situation, adjust the air quantity of kitchen ventilator in time, reach automation, humanized adjustment, the experience used is more preferable.
The detection function of kitchen ventilator is opened, kitchen ventilator sensor is preheated, setting default a reference value V after preheating0,At 1 point
In clock time, acquires 60 sensing datas and calculate average value V1, then judge V1And V0Size works as V1≤V0When, more
New a reference value V0=V1；Work as V1> V0When, continue to sample 5 sensing datas and calculate average value to obtain N1、N2、N3、N4、N5When
It is all satisfied Nn> V0When (n=1,2,3,4,5), a reference value V is updated0=(N1+N2+N3+N4+N5)/5；Otherwise, previous step is returned；
Export updated a reference value V0, the average value V of 15 seconds inner sensors output is sampled, by V and V0Compare, so as to adjust blower
The state of switch and gear.
In addition, the time of acquisition sensing data can be 10 minutes, according to 600 sensors of speed sampling of 1/second
Data, and calculate average value V1Then it carries out subsequent numerical value to compare, updates a reference value V0.Export updated a reference value V0, adopt
The average value V of 30 seconds inner sensors of sample output, by V and V0Compare, so as to adjust the switch of blower and the state of gear.
Embodiment 2: on the basis of embodiment 1, the V and V0When comparing, it is equipped with correction value Δ V, i.e. V and (V0+ΔV)
Compare, the value range of Δ V is 0.15~1.5V.That is, by V and (V0+ 0.15V) when comparing, as V < (V0+ 0.15V) when, blower
Gear reduces by one grade, if blower has shut down, fan condition is constant；As V >=(V0+ 0.15V) when, blower gear increases by one grade,
Alternatively, by V and (V0+ 1.5V) when comparing, as V < (V0+ 1.5V) when, blower gear reduces by one grade, if blower has shut down, wind
Machine state is constant；As V >=(V0+ 1.5V) when, blower gear increases by one grade, while will keep the air quantity t1~t2 seconds.Time t1
Value range is 60~90 seconds, and time t2 value range is 150~180 seconds, i.e. the retention time of air quantity is 210~270 seconds.
Embodiment 3: on the basis of embodiment 1, the default a reference value V0Dynamic updating method is as follows: (1) being spaced
In the T1 time, according to 60 sensing datas of speed sampling of 1/second；(2) the average value V of 60 data is calculated1, by V1With 60
A data are compared one by one, judge V1With the difference of 60 data whether be greater than ± | V |；(3) at least one difference if it exists
Greater than ± 0.05~0.5V, then (1) resampling is jumped to；If it does not exist, (4) are thened follow the steps；(4) judge V1And V0Size:
Work as V1≤V0When, update a reference value V0=V1；Work as V1> V0When, continuous sampling five times, all meet if sampling effective average value for five times
Nn> V0, (n=1,2,3,4,5) then update a reference value V0=(N1+N2+N3+N4+N5)/5；If having in five samplings any primary
It is unsatisfactory for Nn> V0, (n=1,2,3,4,5), then times of collection restarts to count；(5) updated a reference value is finally exported
V0。
Embodiment 4: on the basis of embodiment 1, the oil smoke sensor is semiconductor principle gas sensor, semiconductor
Gas sensitive in principle gaseous sensor is combined using the metal oxide for having gas absorption characteristic, can effectively be monitored
The data of variation.
Embodiment 5: this air quantity self-adjusting kitchen ventilator, including blower, oil smoke sensor and control system, blower and control
System Electricity Federation；Oil smoke sensor is for detecting oil smoke signal and being sent to control system；Control system receives oil smoke sensor hair
The oil smoke signal sent, for dynamically updating a reference value V of oil smoke sensor0, it is same as the oil smoke signal for will receive in T seconds
Average value V and V0Compare；The control system is also used to according to V and V0Ratio size and adjust the switch and gear of blower
State.
The present invention is handled by complicated software algorithm by the output signal to sensor, is obtained dynamic in real time
State a reference value guarantees the difference of sensor output value and a reference value with this, can correctly reflect the practical feelings of kitchen fume
Condition realizes that cigarette strong wind is big, the small wind of cigarette is small, smokeless calm so that kitchen ventilator really realizes intelligentized control method.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of control method of air quantity self-adjusting kitchen ventilator, it is characterised in that: the following steps are included:
(1), to one default a reference value V of oil smoke sensor settings0；
(2), within the T1 time of interval, multiple sensing datas is acquired and calculate average value V1；
(3) judge V1And V0Size:
Work as V1≤V0When, update a reference value V0=V1；
Work as V1> V0When, continue to sample multiple sensing datas and calculate average value to obtain N1、N2... when being all satisfied Nn> V0(n
=1,2,3 ... 5) when, update a reference value V0=(N1+N2+N3+N4+N5)/5；Otherwise, return step (2)；
(4) updated a reference value V is exported0, the average value V of sampling T seconds inner sensors output, by V and V0Compare, so as to adjust
The switch of blower and the state of gear.
2. the control method of air quantity self-adjusting kitchen ventilator according to claim 1, it is characterised in that: the sampling time T
Value range be 15~30 seconds.
3. the control method of air quantity self-adjusting kitchen ventilator according to claim 1, it is characterised in that: the V and V0Compare
When, it is equipped with correction value Δ V, i.e. V and (V0+ Δ V) compare, the value range of Δ V is 0.15~1.5V.
4. the control method of air quantity self-adjusting kitchen ventilator according to claim 3, it is characterised in that: described by V and (V0+Δ
When V) comparing, as V < (V0+ Δ V) when, blower gear reduces by one grade, if blower has shut down, fan condition is constant；As V >=(V0
+ Δ V) when, blower gear increases by one grade, while will keep the air quantity t1~t2 seconds.
5. the control method of air quantity self-adjusting kitchen ventilator according to claim 4, it is characterised in that: the time t1's takes
Value range is 60~90 seconds, and the value range of time t2 is 150~180 seconds.
6. the control method of air quantity self-adjusting kitchen ventilator according to claim 1, it is characterised in that: the step (2) is also
Include:
I, within the T1 time of interval, multiple sensing datas is acquired and calculate average value V1；
II, judge V1With the difference of multiple data whether be greater than ± | V |；
III, if it exists at least one difference be greater than ± | V |, then resampling；If it does not exist, then judge V1And V0Size.
7. the control method of air quantity self-adjusting kitchen ventilator according to claim 6, it is characterised in that: the interval time T1
Value range be 1~10 minute.
8. the control method of air quantity self-adjusting kitchen ventilator according to claim 6, it is characterised in that: the difference | V | it takes
Value range is 0.05~0.5V.
9. the control method of air quantity self-adjusting kitchen ventilator according to claim 1, it is characterised in that: the oil smoke sensor
For semiconductor principle gas sensor.
10. a kind of air quantity self-adjusting kitchen ventilator, it is characterised in that: include:
Blower, with control system Electricity Federation；
Oil smoke sensor, for detecting oil smoke signal and being sent to control system；
Control system receives the oil smoke signal that oil smoke sensor is sent, for dynamically updating a reference value V of oil smoke sensor0, use
The average value V and V of the oil smoke signal received in by T seconds0Compare；Dynamic updates are as follows: and step (1) was spaced in the T1 time,
It acquires multiple sensing datas and calculates average value V1；Judge V1And V0Size: step (2) works as V1≤V0When, update a reference value V0
=V1；Work as V1> V0When, continue to sample multiple sensing datas and calculate average value to obtain N1、N2... when being all satisfied Nn> V0(n
=1,2,3 ... 5) when, update a reference value V0=(N1+N2+N3+N4+N5)/5；Otherwise, return step (1)；
The control system is also used to according to V and V0Ratio size and adjust the switch of blower and the state of gear.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110260371B (en) * | 2018-03-12 | 2021-01-19 | 宁波方太厨具有限公司 | Intelligent control method for range hood based on multiple sensors |
| CN110274274B (en) * | 2018-03-13 | 2024-02-20 | 伊志军 | Control method and system of intelligent range hood |
| CN108870495B (en) * | 2018-08-20 | 2019-11-26 | 深圳北鱼信息科技有限公司 | Oil smoke concentration detection apparatus |
| CN111623386B (en) * | 2019-02-28 | 2022-02-08 | 宁波方太厨具有限公司 | Self-adaptive control method for flow of range hood |
| CN109974059B (en) * | 2019-04-29 | 2021-04-06 | 广东万和热能科技有限公司 | Range hood wind pressure detection control method, device, equipment and storage medium |
| CN114151841B (en) * | 2021-12-31 | 2023-10-20 | 华帝股份有限公司 | Air quantity control method of range hood |
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