CN109489088A - A kind of outlet noise measuring control system and its control method - Google Patents
A kind of outlet noise measuring control system and its control method Download PDFInfo
- Publication number
- CN109489088A CN109489088A CN201811205041.9A CN201811205041A CN109489088A CN 109489088 A CN109489088 A CN 109489088A CN 201811205041 A CN201811205041 A CN 201811205041A CN 109489088 A CN109489088 A CN 109489088A
- Authority
- CN
- China
- Prior art keywords
- module
- noise signal
- high frequency
- frequency noise
- 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
Links
Classifications
-
- 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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of outlet noise measuring control system and its control methods, including audio collection module, filter module, high-frequency signal amplification module, main control module, drive module；Filter module is connect to handle noise signal with audio collection module, it isolates steam and flows through high frequency noise signal caused by venthole, high-frequency signal amplification module is connect to amplify to high frequency noise signal with filter module, the input terminal of main control module is connect to receive high frequency noise signal with the output end of high-frequency signal amplification module, and high frequency noise signal curve is analyzed and determined, main control module is connect to control drive module operation according to the judgement information of high frequency noise signal curve with drive module, the ingenious high-frequency noise that venthole sending is flowed through using steam of the design, making an uproar with the bottom in environment has notable difference, signature feature, to judge situation to boil water, improve heating efficiency and electric energy loss, realization is precisely controlled.
Description
Technical field
The present invention relates to heating element fields, in particular with audio detection control system and control method.
Background technique
Traditional electromagnetic oven, electrothermal furnace etc., it is the case where for anti-dry or learning food, generally anti-using temperature
Feedback, and general temperature detection part is arranged in and is set to electromagnetic oven, on electrothermal furnace, with being heated for carrying water or food
The side wall of vessel contacts, it is also possible to can be separated by by the panel of electromagnetic oven or electrothermal furnace, temperature detection part is according to conventional temperature
Sensor is spent, there can also be the problem of detection accuracy inaccuracy, water boiling is easy to cause for a long time just to detect water boiling later,
Or the not boiled just stopping heating of water.
Then, producer is acquired the audio signal during to boil water, detects the sound of boiling water, however the sound of boiling water
It is droning, be easy to be made an uproar by the bottom in environment (background noise) obscure interference, cause testing result inaccurate, while easy false triggering.
And this producer is it is considered that the heating vessel that cooperation electromagnetic oven, the heating devices such as electrothermal furnace use, in process to boil water
In, it necessarily has that steam stream crosses venthole and generates sound (such as steam flows through the gap of pot body and pot cover, steam flows through out
Air valve etc.), especially pressure cooker is provided with air outlet valve on pressure cooker, and the sound that steam flows through is particularly evident, this sound point
It is sharp, belong to high-frequency noise, can be distinguished well with other sound in environment.
Summary of the invention
In order to solve the above technical problems, when can identify that acquisition steam passes through venthole the object of the present invention is to provide one kind
The high frequency noise signal of generation and the heating control system and control method for handling analysis.
The technical solution adopted by the present invention is that:
A kind of outlet noise measuring control system, comprising:
Audio collection module, for acquire it is to boil water during noise signal；
Filter module is connect to handle noise signal with audio collection module, is isolated steam and is flowed through venthole and is produced
Raw high frequency noise signal；
High-frequency signal amplification module is connect to amplify to high frequency noise signal with filter module；
Main control module, input terminal are connect to receive high frequency noise signal with the output end of high-frequency signal amplification module, and
And high frequency noise signal curve is analyzed and determined；
Drive module, for driving external heating element to run, main control module is connect to be made an uproar according to high frequency with drive module
The judgement information control drive module operation of sound signal curve.
Further include temperature detecting module, be used for temperature collection signal, main control module is connect to combine with temperature detecting module
High frequency noise signal curve and temperature signal control drive module operation.
It further include timing module, for recording the operation timing signal of heating element, main control module is connect with timing module
To combine high frequency noise signal curve and operation timing signal control drive module operation.
Further include low frequency signal amplification module, is connect with audio collection module, filter module respectively to obtain from noise and believe
Low frequency noise signals and amplification after having separated high frequency noise signal in number, the input terminal and low frequency signal of main control module amplify mould
The output end of block connects.
A kind of control method applied to outlet noise measuring control system, comprising the following steps:
Acquire it is to boil water during noise signal；
It isolates steam and flows through high frequency noise signal caused by venthole；
High frequency noise signal is amplified；
It identifies and high frequency noise signal is utilized to form high frequency noise signal curve, controlled and driven according to high frequency noise signal curve
The operation of dynamic model block.
The high frequency noise range of signal isolated is between 7KHz-12KHz.
Control system further includes the temperature detecting module for temperature collection signal, and main control module and temperature detecting module connect
It connects；
Analysis of high frequency noise signal curve, as Shu y (t)-y (t+ Δ t) Shu >=K in high frequency noise signal curveO, then judge water
Boiling, moment t+ Δ t is the fluidizing point of water；Wherein, G (t) is the noise signal sizes values of t moment, and Δ t is the time of setting
Interval, KOTo judge noise signal difference when water boiling；
Work as water boiling, judges whether the value of temperature signal is greater than or equal to PO；POFor the preset temperature for judging boiling to boil water
Value, if so, main control module control drive module driving heating element stops heating.
Control system further includes the timing module for recording the operation timing signal of heating element, main control module and timing
Module connection；
Analysis of high frequency noise signal curve, as Shu y (t)-y (t+ Δ t) Shu >=K in high frequency noise signal curveO, then judge water
Boiling, moment t+ Δ t is the fluidizing point of water；Wherein, G (t) is the noise signal sizes values of t moment, and Δ t is the time of setting
Interval, KOTo judge noise signal difference when water boiling；
Work as water boiling, judges whether the value of operation timing signal is greater than or equal to TO；TOFor judge boiling to boil water it is default when
Between be worth, if so, main control module control drive module driving heating element stop heating.
Using filter module while isolating steam and flowing through high frequency noise signal caused by venthole, obtain from making an uproar
Low frequency noise signals and amplification after having separated high frequency noise signal in sound signal, main control module is using low frequency noise signals the bottom of as
It makes an uproar sample, to identify high frequency noise signal.
Main control module controls drive module driving heating element start and stop switching, and main control module detects high frequency noise signal curve
Whether switch with start and stop and synchronizes variation.
Beneficial effects of the present invention:
Outlet noise measuring control system and control method of the present invention, audio collection module acquire it is to boil water during noise
Signal, filter module isolate steam and flow through high frequency noise signal caused by venthole, and to height to noise signal processing
The amplification of frequency noise signal, main control module identifies and high frequency noise signal is utilized to form high frequency noise signal curve, is made an uproar according to high frequency
The operation of sound signal curve controlled drive module, the ingenious high-frequency noise that venthole sending is flowed through using steam of the design, with environment
In bottom make an uproar and have notable difference, signature feature, to judge situation to boil water, driving is controlled in the case where detection accuracy height
The operation of module drive heating element, improves heating efficiency and electric energy loss, realization is precisely controlled.
Detailed description of the invention
A specific embodiment of the invention is described further with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of control system of the present invention.
Fig. 2 is the circuit diagram of filter module, high-frequency signal amplification module and low frequency signal amplification module.
Fig. 3 is the basic flow chart of control method of the present invention.
Fig. 4 is the flow chart of control method combination temperature control of the present invention.
Fig. 5 is the flow chart of control method binding time control of the present invention.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of outlet noise measuring control system, including audio collection module 1, filter module 2, height
Frequency signal amplification module 3, main control module 4, drive module 5；
Audio collection module 1 be used for acquire it is to boil water during noise signal；Filter module 2 and audio collection module 1 connect
It connects to handle noise signal, isolates steam and flow through high frequency noise signal caused by venthole；High-frequency signal amplification module 3
It is connect with filter module 2 to amplify to high frequency noise signal；The input terminal of main control module 4 is defeated with high-frequency signal amplification module 3
Outlet connection analyzes and determines high frequency noise signal curve with receiving high frequency noise signal；Drive module 5 is outer for driving
The operation of portion's heating element, main control module 4 are connect to be controlled and be driven according to the judgement information of high frequency noise signal curve with drive module 5
Dynamic model block 5 is run.
Wherein, audio collection module 1 can be decibel tester perhaps microphone MIC main control module can be CPU or
MCU and its peripheral circuit, filter module use high-pass filter or bandpass filter, and drive module can be silicon-controlled, electric
Magnetic relay, switching tube etc. drive the element of electromagnetic coil, fever tablet operation.
The design is based on during to boil water or cooking food, and environment can have certain noise, and this noise is in low
Frequency noise signal, and when boiling is boiled or approach boiling, it has that steam flows through venthole and generates sound, this sound point
It is sharp, belong to high-frequency noise, feature is obvious, can distinguish well with other sound in environment.
In addition, being provided with the vessel of the ultra-tone generator using Steam Actuation for a kind of venthole thereon, water is opened
Ultra-tone generator generates the sound wave that human ear cannot realize later, but can be acquired by audio collection module 1, all protects in the design
It protects in range.
The ingenious high-frequency noise that venthole sending is flowed through using steam of the design, so that situation to boil water is judged, in detection essence
Drive module driving heating element operation is controlled in the case that degree is high, is improved heating efficiency and electric energy loss, is realized accurate
Control.
The design further includes the temperature detecting module 6 for temperature collection signal, and temperature detecting module is temperature biography herein
Sensor or other temperature detection parts, the furnace body wall face contact with carrying water or food, acquisition is general water or food
The temperature signal of object, main control module 4 are connect to combine high frequency noise signal curve and temperature signal to control with temperature detecting module 6
Drive module 5 is run.
The design further includes timing module 7, for recording the operation timing signal of heating element, main control module 4 and timing
The connection of module 7 is to combine high frequency noise signal curve and operation timing signal control drive module 5 to run.
Further, filter module allows the signal of high frequency noise signal or fixed frequency range to pass through, other frequency ranges are isolated
Signal, the design further include low frequency signal amplification module 8, connect respectively with audio collection module 1, filter module 2 with obtain from
Low frequency noise signals and amplification after having separated high frequency noise signal in noise signal, the i.e. input of low frequency signal amplification module 8
End is connect to obtain low frequency noise signals with the input terminal of the output end of audio collection module 1, filter module 2, main control module 4
Input terminal is connect with the output end of low frequency signal amplification module 8.
A kind of control method applied to outlet noise measuring control system, comprising the following steps:
Acquire it is to boil water during noise signal；
It isolates steam and flows through high frequency noise signal caused by venthole；
High frequency noise signal is amplified；
It identifies and high frequency noise signal is utilized to form high frequency noise signal curve, controlled and driven according to high frequency noise signal curve
The operation of dynamic model block.
The characteristics of flowing through ventilation hole based on steam herein, sets the parameter of filter module, believes the high frequency noise isolated
Number range, preferably can be between 8KHz-10KHz between 7KHz-12KHz.
Since high frequency noise signal still can be generated in the environment by other objects, in order to further increase control essence
Degree, prevents false triggering, temperature can be added below, time parameter is regulated and controled:
Control system further includes the temperature detecting module for temperature collection signal, and main control module and temperature detecting module connect
It connects；
Analysis of high frequency noise signal curve, as Shu y (t)-y (t+ Δ t) Shu >=K in high frequency noise signal curveO, then judge water
Boiling, moment t+ Δ t is the fluidizing point of water；Wherein, G (t) is the noise signal sizes values of t moment, and Δ t is the time of setting
Interval, KOTo judge noise signal difference when water boiling；
Work as water boiling, judges whether the value of temperature signal is greater than or equal to PO；POFor the preset temperature for judging boiling to boil water
Value stops heating, herein P if so, main control module controls drive module driving heating elementOOne can be selected at 97-100 DEG C
Value is set, and preferably 100 DEG C, after analysis of high frequency noise signal curve obtains water boiling, can further detect temperature letter
Whether the actual temperature value in number has reached preset temperature value, if so, can further determine that water has boiled, driving heating
Component stops heating.
Control system further includes the timing module for recording the operation timing signal of heating element, main control module and timing
Module connection；
Analysis of high frequency noise signal curve, as Shu y (t)-y (t+ Δ t) Shu >=K in high frequency noise signal curveO, then judge water
Boiling, moment t+ Δ t is the fluidizing point of water；Wherein, G (t) is the noise signal sizes values of t moment, and Δ t is the time of setting
Interval, KOTo judge noise signal difference when water boiling；
Work as water boiling, judges whether the value of operation timing signal is greater than or equal to TO；TOFor judge boiling to boil water it is default when
Between be worth, if so, main control module control drive module driving heating element stops heating, similarly with temperature control, T hereinOIt can be
One value of selection in 2-5 minutes is set, it is necessary to when being more than this value between when heated, heating element can just be driven to stop heating.
The design can be controlled in combination with the parameter of temperature and time, i.e., meet temperature/time conditions it
One or two condition just stops heating in the case of all meeting.
Further, the same of high frequency noise signal caused by venthole is flowed through isolating steam using filter module
When, it obtains the low frequency noise signals after having separated high frequency noise signal in noise signal and amplification, main control module is made an uproar with low frequency
Sound signal is made an uproar sample the bottom of as, to identify high frequency noise signal, herein, during to boil water, high-frequency signal can become in water
Nearly boiling just will appear, and acquires low frequency noise signals in present environment to boil water herein and makes an uproar sample the bottom of as, i.e., in this ring
The low frequency noise signals curve under water not boiling in border, and the high frequency noise signal curve that main control module is acquired in water boiling
It is compared with low frequency noise signals curve, can more accurately judge whether water boils.
In addition to this, main control module control drive module driving heating element start and stop switching, main control module detection high frequency are made an uproar
Whether sound signal curve switches with start and stop synchronizes variation, such as when closing heating element, sound can disappear, high frequency noise signal
Curve should decline, and open heating element then on the contrary, whether normal to detect this system.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to above embodiment, as long as with
Essentially identical means realize that the technical solution of the object of the invention belongs within protection scope of the present invention.
Claims (10)
1. a kind of outlet noise measuring control system characterized by comprising
Audio collection module, for acquire it is to boil water during noise signal；
Filter module is connect to handle noise signal with audio collection module, is isolated steam and is flowed through caused by venthole
High frequency noise signal；
High-frequency signal amplification module is connect to amplify to high frequency noise signal with filter module；
Main control module, input terminal are connect to receive high frequency noise signal with the output end of high-frequency signal amplification module, and right
High frequency noise signal curve analyzes and determines；
Drive module, for driving external heating element to run, main control module is connect to be believed according to high frequency noise with drive module
The judgement information control drive module operation of number curve.
2. a kind of outlet noise measuring control system according to claim 1, it is characterised in that: further include temperature detection mould
Block, is used for temperature collection signal, and main control module is connect to combine high frequency noise signal curve and temperature to believe with temperature detecting module
Number control drive module operation.
3. a kind of outlet noise measuring control system according to claim 1, it is characterised in that: it further include timing module,
For recording the operation timing signal of heating element, main control module connect with timing module with combine high frequency noise signal curve and
Operation timing signal controls drive module operation.
4. a kind of outlet noise measuring control system according to claim 1, it is characterised in that: further include that low frequency signal is put
Big module, respectively with audio collection module, filter module connection to obtain after having separated high frequency noise signal in noise signal
Low frequency noise signals and amplification, the input terminal of main control module connect with the output end of low frequency signal amplification module.
5. a kind of control method applied to outlet noise measuring control system described in claim 1, which is characterized in that including with
Lower step:
Acquire it is to boil water during noise signal；
It isolates steam and flows through high frequency noise signal caused by venthole；
High frequency noise signal is amplified；
It identifies and high frequency noise signal is utilized to form high frequency noise signal curve, driving mould is controlled according to high frequency noise signal curve
Block operation.
6. a kind of control method according to claim 5, it is characterised in that: the high frequency noise range of signal isolated exists
Between 7KHz-12KHz.
7. a kind of control method according to claim 5, which is characterized in that control system further includes believing for temperature collection
Number temperature detecting module, main control module connect with temperature detecting module；
Analysis of high frequency noise signal curve, as Shu y (t)-y (t+ Δ t) Shu >=K in high frequency noise signal curveO, then judge water boiling,
Moment t+ Δ t is the fluidizing point of water；Wherein, G (t) is the noise signal sizes values of t moment, and Δ t is the time interval of setting,
KOTo judge noise signal difference when water boiling；
Work as water boiling, judges whether the value of temperature signal is greater than or equal to PO；POFor the preset temperature value for judging boiling to boil water, if
It is that main control module controls drive module driving heating element and stops heating.
8. a kind of control method according to claim 5, which is characterized in that control system further includes for recording heating part
The timing module of the operation timing signal of part, main control module are connect with timing module；
Analysis of high frequency noise signal curve, as Shu y (t)-y (t+ Δ t) Shu >=K in high frequency noise signal curveO, then judge water boiling,
Moment t+ Δ t is the fluidizing point of water；Wherein, G (t) is the noise signal sizes values of t moment, and Δ t is the time interval of setting,
KOTo judge noise signal difference when water boiling；
Work as water boiling, judges whether the value of operation timing signal is greater than or equal to TO；TOFor the preset time for judging boiling to boil water
Value, if so, main control module control drive module driving heating element stops heating.
9. a kind of control method according to claim 5, which is characterized in that flowed through using filter module isolating steam
Caused by venthole while high frequency noise signal, obtains the low frequency after having separated high frequency noise signal in noise signal and make an uproar
Sound signal is simultaneously amplified, and main control module is made an uproar sample using low frequency noise signals the bottom of as, to identify high frequency noise signal.
10. a kind of control method according to claim 5, which is characterized in that main control module controls drive module driving and adds
Whether thermal part start and stop switching, main control module detect high frequency noise signal curve with the synchronous variation of start and stop switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811205041.9A CN109489088A (en) | 2018-10-16 | 2018-10-16 | A kind of outlet noise measuring control system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811205041.9A CN109489088A (en) | 2018-10-16 | 2018-10-16 | A kind of outlet noise measuring control system and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489088A true CN109489088A (en) | 2019-03-19 |
Family
ID=65691344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811205041.9A Pending CN109489088A (en) | 2018-10-16 | 2018-10-16 | A kind of outlet noise measuring control system and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489088A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU565766B2 (en) * | 1984-01-05 | 1987-09-24 | Matsushita Electric Industrial Co., Ltd. | Cooker with weight-detection function |
| CN2201871Y (en) * | 1994-06-11 | 1995-06-28 | 林子进 | Automatic sound-control electric pressure-cooker |
| CN104251502A (en) * | 2014-09-25 | 2014-12-31 | 中山市法兰宝电业有限公司 | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof |
| CN204813373U (en) * | 2015-07-24 | 2015-12-02 | 浙江绍兴苏泊尔生活电器有限公司 | Pressure cooker |
| CN205359249U (en) * | 2015-11-24 | 2016-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Firing equipment and culinary art device |
-
2018
- 2018-10-16 CN CN201811205041.9A patent/CN109489088A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU565766B2 (en) * | 1984-01-05 | 1987-09-24 | Matsushita Electric Industrial Co., Ltd. | Cooker with weight-detection function |
| CN2201871Y (en) * | 1994-06-11 | 1995-06-28 | 林子进 | Automatic sound-control electric pressure-cooker |
| CN104251502A (en) * | 2014-09-25 | 2014-12-31 | 中山市法兰宝电业有限公司 | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof |
| CN204813373U (en) * | 2015-07-24 | 2015-12-02 | 浙江绍兴苏泊尔生活电器有限公司 | Pressure cooker |
| CN205359249U (en) * | 2015-11-24 | 2016-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Firing equipment and culinary art device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105816056B (en) | The cooking methods of firing equipment, cooker and firing equipment | |
| EP2020826B1 (en) | Induction heating cooker, induction heating cooking method, induction heating cooking program, resonance sound detection device, resonance sound detection method, and resonance sound detection program | |
| CN103776075B (en) | A kind of range hood intelligence control system and control flow thereof | |
| CN205359249U (en) | Firing equipment and culinary art device | |
| CN105832133A (en) | Heating equipment, cooking device and cooking method of heating equipment | |
| CN105686610B (en) | The control method of cooking apparatus and cooking apparatus | |
| CN102692040A (en) | Micro acceleration transducer-based cooking state control method for electromagnetic oven boiler | |
| CN104251502B (en) | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof | |
| CN105852649A (en) | Self-detection method and self-detection device of cooking appliance and cooking appliance | |
| CN110186076A (en) | Intelligent gas stove cooking control method and intelligent gas stove | |
| CN107616688B (en) | Cooking control method and device for cooking soup and pressure cooking appliance | |
| CN106724777A (en) | The cooking methods of firing equipment, cooker and firing equipment | |
| CN201166795Y (en) | Temperature recognition device | |
| CN109489088A (en) | A kind of outlet noise measuring control system and its control method | |
| CN204813373U (en) | Pressure cooker | |
| CN206371954U (en) | A kind of multi-functional food processor | |
| CN110631064B (en) | Voice recognition method and automatic control method of range hood applying voice recognition method | |
| CN106308465A (en) | Method for recognizing cooking type of electric cooker and electric cooker | |
| CN205664438U (en) | Firing equipment and culinary art device | |
| CN105433775A (en) | Boiling point identification method, boiling point identification device, pot cover and electric pressure cooker | |
| CN110986104A (en) | Dry burning prevention protection temperature acquisition method and device and kitchen range | |
| CN204201957U (en) | Infrared intelligent remote measurement temperature control system | |
| CN201984362U (en) | Water boiling controller | |
| CN110338627A (en) | Cooking methods, cooker, cooking apparatus and computer readable storage medium | |
| CN109855119B (en) | Thermocouple and NTC temperature sensor fault detection method for gas stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |