CN105004138A - Smell induction refrigerator controller - Google Patents
Smell induction refrigerator controller Download PDFInfo
- Publication number
- CN105004138A CN105004138A CN201510465421.6A CN201510465421A CN105004138A CN 105004138 A CN105004138 A CN 105004138A CN 201510465421 A CN201510465421 A CN 201510465421A CN 105004138 A CN105004138 A CN 105004138A
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- Prior art keywords
- circuit
- module
- refrigerator
- smell
- microcontroller
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a smell induction refrigerator controller which comprises a controller body. The controller body comprises a power-switching circuit, a power sampling module, a smell sampling module, a display and key module, a temperature sensing module, a buzzer circuit, a compressor control module, an electromagnetic valve control module, a door lamp control circuit, a door switch sampling circuit and a fan control module. According to the smell induction refrigerator controller, air quality information in a refrigerator is collected through the smell sampling module, and thus whether food goes bad or not can be judged; alarm reminding is conducted through the buzzer circuit so that people can dispose the bad food in time, and bad smells in the refrigerator can be avoided; power parameters are collected in a power self-learning mode, and the power parameters can be adjusted automatically through a microcontroller, so that the power self-learning function is achieved; the controller can be suitable for working of different power sources, and the working voltages are more stable and safer.
Description
Technical field
The present invention relates to refrigerator controller field, particularly relate to a kind of smell induction refrigerator controller.
Background technology
Refrigerator is a kind of refrigeration plant keeping constant low temperature, is also a kind of product for civilian use making food or other article keep constant low temperature cold conditions.Compressor, ice machine is had in order to icing cabinet or case, with the hutch of refrigerating plant in casing.
Operationally, compressor constantly aspirates the refrigerant vapour in evaporimeter to refrigerator, and refrigerant compression is become high pressure, high-temperature steam sends to condenser.Refrigerant vapour releases heat within the condenser, and is condensed into liquid.Liquid refrigerant carries out filtration drying by device for drying and filtering, removes the impurity in cold-producing medium and moisture.Condensed liquid refrigerant passes through magnetic valve, the flow direction of solenoid control cold-producing medium and flow, cold-producing medium is preferentially through refrigeration, after refrigeration reaches the temperature of setting, will by sensor to magnetic valve signal, magnetic valve will cut out refrigeration, and cold-producing medium now only flows to freezing, reaches design temperature until freezing.Cold-producing medium enters restricting element capillary after magnetic valve, then enters evaporimeter.Cold-producing medium becomes low pressure from high pressure in restricting element capillary, and occurs the liquid of a small amount of gasification.When cold-producing medium leaves restricting element capillary, become liquid, gas two-phase mixtures state, then enter evaporimeter.Cold-producing medium is explosive evaporation in evaporimeter, from cooled object, draw required heat of gasification.Low pressure, temperature refrigerant vapor again by compressor suction, compress, enter and circulate next time.
People buy refrigerator, be generally used to refrigeration and fresh-keeping food, but refrigerator can extend its shelf-life at low temperatures, but food spoilage cannot be stoped, when having filled up a large amount of vegetables or fruit in refrigerator, because various smell mixes, part food is caused not to be found after going bad, continue to be placed in refrigerator, have influence on the fresh-keeping of other foods, also cause refrigerator the smell is awful simultaneously, and people are once eat deteriorating food by mistake, then harm is caused to health, there is healthy hidden danger.
Disclosed in 24 days October in 2012, publication number is a kind of refrigerator/freezer with odor detection module of CN102748916A, the characteristic odor that in refrigerator, food distributes is detected by odor detection module, contrast with the database in MCU simultaneously, then comparative result is confirmed the freshness of food in refrigerator as basis for estimation, but this design relies on database, need the characteristic odor gathering abundant food in advance, and to ensure that the characteristic odor of food is different, this is high to the requirement of smell sensor, and easily go out to tear mistake open, with current level, do not possess the carrier that such odor data storehouse is compared as him, thus this practical applicability is reduced greatly.
And the refrigerator controller of domestic manufacture at present also exportation abroad, but because there is the difference of voltage standard, outlet is caused all to need to do corresponding change to the controller of country variant, to adapt to the standard when ground voltage, if do not change, circuit is easily out of order, then there is potential safety hazard, change and then need to increase cost, be in awkward situation.
Summary of the invention
The present invention provides a kind of smell induction refrigerator controller for solving the problem, the air quality in refrigerator is gathered by smell sampling module, thus judge whether food quality goes bad, and carry out alarm by buzzer circuit, enable people process deteriorating food in time, avoid occurring niff in refrigerator; By the collection of power supply self study to power parameter, complete the adjustment voluntarily to electrical quantity by microcontroller, achieve the function of power supply self study, enable this controller adapt to the work of different electrical power, can zero cross detection circuit be replaced simultaneously, make operating voltage stability and safety more.
For achieving the above object, reach above-mentioned effect, the present invention is achieved through the following technical solutions:
A kind of smell induction refrigerator controller, comprise controller body, described controller body comprises power-switching circuit AC signal being converted to direct current signal, gather the power supply sampling module of power parameter, the smell sampling module of monitoring air quality, the display providing people to operate and key-press module, the temperature sensing module of collecting temperature information, play the buzzer circuit of reminding effect, control the compressor control module of compressor operating, select the solenoid valve control module of freezing and refrigeration pipeline, the gate light control circuit of automatic switch gate light, gather the door switch sample circuit of door switch information and control the fan control module of fan operation, described microcontroller and power-switching circuit, power supply sampling module, smell sampling module, display and key-press module, temperature sensing module, buzzer circuit, compressor control module, solenoid valve control module, gate light control circuit, door switch sample circuit, fan control module connects, and described smell sampling module is connected with power-switching circuit, and described smell sampling module gathers the air quality in refrigerator, thus it is rotten to judge whether food exists, and carries out alarm by buzzer circuit.
Further, described power supply sampling module comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, calculated every electrical quantity of access power supply by the software algorithm in microcontroller, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses.
Further, described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
Further, described smell sampling module comprises air mass sensor, gas concentration in electrical resistance air in described air mass sensor and changing, thus by the change of the software algorithm in microcontroller according to resistance value, judge the air quality in refrigerator.
Further, the button on described display and key-press module and Diode series, be connected with I/O mouth by wire, for inputting user instruction to refrigerator controller; Described display and key-press module comprise employing LED or charactron or LCDs and show, for the working of display refrigerator.
Further, described temperature sensing module, smell sampling module are provided with more than 1 or 2 or 2.
Further, described microcontroller is built-in with A/D modular converter and I/O circuit, described power supply sampling module, smell sampling module, temperature sensing module are connected with microcontroller by A/D mouth, and described display and key-press module, buzzer circuit, compressor control module, solenoid valve control module, gate light control circuit, door switch sample circuit, fan control module are passed through I/O mouth and be connected with microcontroller.
Further, described compressor control module includes compressor, and described compressor control module is connected with the compressor in refrigerator, and described solenoid valve control module is connected with the magnetic valve in refrigerator.
Further, described door switch sample circuit is connected with the switch in refrigerator doors, and described gate light control circuit is connected with the gate light in refrigerator, when refrigerator doors is opened, switch closes, circuit turn-on, Continuity signal is transferred to microcontroller, sends control signal by microcontroller, light gate light, when refrigerator doors is closed, cut-off switch, extinguishes gate light.
The invention has the beneficial effects as follows:
A kind of smell induction refrigerator controller, gather the air quality in refrigerator by smell sampling module, thus judge whether food quality goes bad, and carry out alarm by buzzer circuit, enable people process deteriorating food in time, avoid occurring niff in refrigerator; By the cooperation of power supply sampling module and microcontroller, reach the effect of power supply self study, thus the compatibility technical problem of different electrical power index, this dust collector controller used in multiple country simultaneously, zero cross detection circuit can be replaced simultaneously, complete self-voltage regulation result, in global design, make this controller function more powerful, electricity consumption is saved more safely, accommodation is more extensive, uses more intelligent, meets the development trend of society now.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of description, coordinate accompanying drawing to be described in detail as follows with preferred embodiment of the present invention below, the specific embodiment of the present invention provides in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of example structure schematic diagram of a kind of smell induction refrigerator controller that the present invention relates to;
Fig. 2 is a kind of embodiment schematic diagram of the power-switching circuit that the present invention relates to;
Fig. 3 is the another kind of embodiment schematic diagram of the power-switching circuit that the present invention relates to;
Fig. 4 is a kind of embodiment schematic diagram of the power supply sampling module that the present invention relates to;
Fig. 5 is a kind of embodiment schematic diagram of the smell sampling module that the present invention relates to;
Fig. 6 is a kind of embodiment schematic diagram of display and the key-press module that the present invention relates to;
Fig. 7 is a kind of embodiment schematic diagram of the temperature sensing circuit that the present invention relates to;
Fig. 8 is a kind of embodiment schematic diagram of the buzzer circuit that the present invention relates to;
Fig. 9 is a kind of embodiment schematic diagram that the compressor control module that the present invention relates to is connected with refrigerator inner compressor;
Figure 10 is a kind of embodiment schematic diagram that the solenoid valve control module that the present invention relates to is connected with magnetic valve in refrigerator;
Figure 11 is a kind of embodiment schematic diagram that the gate light control circuit that the present invention relates to is connected with refrigerator gate light;
Figure 12 is a kind of embodiment schematic diagram that the door switch sample circuit that the present invention relates to is connected with refrigerator door open-close;
Figure 13 is a kind of embodiment schematic diagram that the fan control module that the present invention relates to is connected with refrigerator inner blower;
Figure 14 is the waveform schematic diagram of alternating current after rectification circuit that the present invention relates to.
In FIG, power-switching circuit 1, power supply sampling module 2, smell sampling module 3, display and key-press module 4, temperature sensing module 5, microcontroller 6, buzzer circuit 7, compressor control module 8, solenoid valve control module 9, gate light control circuit 10, door switch sample circuit 11 and fan control module 12.
In the circuit diagram of Fig. 2-Figure 13, L is live wire, and N is zero line, and T is transformer, D
1-D
7for diode, wherein D
1with D
4for rectifier bridge, VT
1-VT
9for the triode of NPN type, ZD is Zener diode, LED
1-LED
7for light emitting diode, wherein LED
7for refrigerator gate light, C
1-C
8for electric capacity, wherein C
1, C
4for polar capacitor, R
1-R
19for resistance, SW
1-SW
4for switch, wherein SW
4for refrigerator door open-close, I/O
1-I/O
13for the I/O interface of microcontroller, A/D
1-A/D
3for the A/D interface of microcontroller, V
dDfor the operating voltage of chip, V
cCfor the power supply of circuit, GND is earth terminal, and VR is adjustable resistance, and Q is air mass sensor, and A, B are two pins of Q, and BH is temperature sensor, and BUZ is buzzer, M
1for the compressor in refrigerator, C, S, M are three pins of compressor, and PTC is starter, K
1, K
2, K
3for relay, YV is the magnetic valve in refrigerator, M
2for the blower fan in refrigerator.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
As shown in Fig. 1-Figure 14, a kind of smell induction refrigerator controller, comprise controller body, described controller body comprises the power-switching circuit 1 AC signal being converted to direct current signal, gather the power supply sampling module 2 of power parameter, the smell sampling module (3) of monitoring air quality, the display providing people to operate and key-press module 4, the temperature sensing module 5 of collecting temperature information, play the buzzer circuit 7 of reminding effect, control the compressor control module 8 of compressor operating, select the solenoid valve control module 9 of freezing and refrigeration pipeline, the gate light control circuit 10 of automatic switch gate light, gather the door switch sample circuit 11 of door switch information and control the fan control module 12 of fan operation, described microcontroller 6 and power-switching circuit 1, power supply sampling module 2, smell sampling module 3, display and key-press module 4, temperature sensing module 5, buzzer circuit 7, compressor control module 8, solenoid valve control module 9, gate light control circuit 10, door switch sample circuit 11, fan control module 12 connects, and described smell sampling module 3 is connected with power-switching circuit 1, and described smell sampling module 3 gathers the air quality in refrigerator, thus it is rotten to judge whether food exists, and carries out alarm by buzzer circuit 7.
Further, described power supply sampling module 2 comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller 6 is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, calculated every electrical quantity of access power supply by software algorithm in microcontroller 6, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses.
Further, described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
Further, described smell sampling module 3 comprises air mass sensor, gas concentration in electrical resistance air in described air mass sensor and changing, thus by the change of the software algorithm in microcontroller 6 according to resistance value, judge the air quality in refrigerator.
Further, the button on described display and key-press module 4 and Diode series, be connected with I/O mouth by wire, for inputting user instruction to refrigerator controller; Described display and key-press module 4 comprise employing LED or charactron or LCDs and show, for the working of display refrigerator.
Further, described temperature sensing module 5, smell sampling module 3 are provided with more than 1 or 2 or 2.
Further, described microcontroller 6 is built-in with A/D modular converter and I/O circuit, described power supply sampling module 2, smell sampling module 3, temperature sensing module 5 are connected with microcontroller 6 by A/D mouth, and described display and key-press module 4, buzzer circuit 7, compressor control module 8, solenoid valve control module 9, gate light control circuit 10, door switch sample circuit 11, fan control module 12 are connected with microcontroller 6 by I/O mouth.
Further, described compressor control module includes compressor, and described compressor control module 8 is connected with the compressor in refrigerator, and described solenoid valve control module 9 is connected with the magnetic valve in refrigerator.
Further, described door switch sample circuit 11 is connected with the switch in refrigerator doors, and described gate light control circuit 10 is connected with the gate light in refrigerator, when refrigerator doors is opened, switch closes, circuit turn-on, Continuity signal is transferred to microcontroller 6, sends control signal by microcontroller 6, light gate light, when refrigerator doors is closed, cut-off switch, extinguishes gate light.
Specific embodiment
In the middle of the integrated circuit structure chart of Fig. 1, after power-switching circuit carries out Power convert, stable output voltage is provided to supply microcontroller work; The information of the access of power supply sampling module collection simultaneously power supply, every electrical quantity of access power supply is calculated by the A/D conversion in microcontroller and software algorithm, electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses; Gas concentration in electrical resistance air in air mass sensor and changing, thus by the change of the software algorithm in microcontroller 6 according to resistance value, judge the air quality in refrigerator; Button on display and key-press module sets, and carries out the control to refrigerator, thus the operation requirements of completing user according to the software code of burning on microcontroller; Temperature sensing circuit gathers temperature information in refrigerator, and transfers signals in microcontroller; The signal that buzzer circuit sends according to microcontroller carries out work, to reach the effect of prompting; Compressor control module receives the control signal that microcontroller sends, thus the compressor in control refrigerator completes kind of refrigeration cycle, solenoid valve control module receives the control signal that microcontroller sends, thus refrigerant flow direction changed by the magnetic valve in control refrigerator, thus control the refrigerating state of refrigerating chamber and refrigerating chamber; Gate light control circuit and door switch sample circuit coordinate, and by microcontroller as maincenter, thus reach turn on light bright, door of door and to turn off the light the technique effect gone out; Fan control module is by microprocessor control, thus the blower fan controlled in refrigerator impels refrigerator inside air to flow.
Fig. 2 is a kind of preferred embodiment of power-switching circuit, receive 220V alternating current from zero line N and live wire L, carry out the lifting to voltage by transformer T, polarity of voltage is now upper just lower negative, then the unidirectional general character of the electric current of diode D is utilized, with four diode composition rectifier bridge D
1, make alternating current become unidirectional pulsating volage, utilize electric capacity every the characteristic of straight-through friendship, by electric capacity C
1in parallel with rectifier bridge, thus the AC signal in filtering pulsating volage, make the DC voltage that voltage becomes smoother, i.e. the supply voltage V of circuit
cC.
Fig. 3 is the another kind of embodiment of power-switching circuit, utilizes the capacitive reactance current limliting of electric capacity, by electric capacity C
3with resistance R
1be connected in series to after parallel connection on live wire, pass through D
2and D
3the unidirectional half-wave rectifying circuit of composition, makes alternating current become unidirectional pulsating volage, carries out voltage stabilizing, pass through C by Zener diode ZD
4, C
5carry out filtering, make the DC voltage that voltage becomes smoother, be i.e. the supply voltage V of circuit
cC.
Fig. 4 is a kind of preferred embodiment of power supply sampling module, passes through D
4carry out rectification, voltage source is through R
2, R
3carry out data sampling, optionally at R
10a upper electric capacity C in parallel
6, make R
3on voltage waveform compare elimination High-frequency Interference, sampled data passes through A/D
1oral instructions are passed to A/D modular converter, convert the analog signal collected to data signal by A/D modular converter, and the software algorithm of data signal in microcontroller calculates every electrical quantity of access power supply, thus carries out self-control according to electrical quantity.
Fig. 5 is a kind of embodiment of smell sampling module, adopt air mass sensor Q as sensing element, with sensor resistance time with fresh air in refrigerator as benchmark, air quality in air mass sensor Q Real-time Collection refrigerator, when the air quality in refrigerator is in OK range, A, resistance value between B is larger, output low level is held from B, when the air quality in refrigerator is beyond OK range, A, resistance value between B reduces rapidly, high level is exported from B end, and signal is passed to microcontroller by A/D oral instructions, in this figure, by regulating the resistance of VR, adjustable air mass sensor Q is to the sensitivity of gas concentration.
Fig. 6 is a kind of preferred embodiment of display and key-press module, adopts LED display (being chosen as numeral method or LCDs display), R
6-R
12as current-limiting resistance, pass through I/O
2-I/O
7mouth is connected with microcontroller, R
19and VT
2as LED
1and LED
2drive circuit, pass through SW
1button controls, simultaneously SW
1connect a diode D
5, prevent SW
1when pressing, interacting between I/O, its LED
3-LED
6, SW
2, SW
3operation principle with reference to LED
1, LED
2, SW
1.。
Fig. 7 is a kind of preferred embodiment of temperature sensing circuit; By series resistance R
13, reduce the electric current on temperature sensor BH, the normal work of protection temperature sensor BH, by filter capacitor C
7with resistance R
12reduce interference, and temperature information is passed through A/D
3be transferred in microcontroller and carry out Treatment Analysis.
Fig. 8 is a kind of preferred embodiment of buzzer circuit, uses I/O
7mouthful timing trigging signal drives buzzer BUZ, with I/O
7a triode VT is increased in the middle of connecting
4drive, make buzzer BUZ sound larger to increase driving force, I/O
7on be connected with pull-up resistor R
14, play protective separation measure.
Fig. 9 is a kind of embodiment that compressor control module is connected with refrigerator inner compressor, passes through relay K
iwith compressor M
1connect, play the effect automatically regulated, S, M two ends starter PTC and start-up capacitance C in parallel
9, for starting compressor M
1.
Figure 10 is a kind of embodiment that solenoid valve control module is connected with magnetic valve in refrigerator; Pass through relay K
2be connected with magnetic valve YV, play the effect automatically regulated, magnetic valve YV has two passages simultaneously, connect refrigerating chamber and refrigerating chamber respectively, by the closedown of control channel, make refrigerant flow direction refrigerating chamber or refrigerating chamber.
Figure 11 is a kind of embodiment that gate light control circuit is connected with refrigerator gate light, microprocessor control refrigerator gate light LED
7light on and off, R
17, VT
8as refrigerator gate light LED
7drive circuit.
Figure 12 is a kind of embodiment of door switch sample circuit and refrigerator door open-close, when refrigerator doors is shut time, and refrigerator door open-close SW
4be in disconnection, circuit not conducting, when refrigerator doors is opened time, refrigerator door open-close SW
4be in connection status, circuit turn-on, and by whether the information transmission of conducting on microcontroller.
Figure 13 is a kind of embodiment that fan control module is connected with refrigerator inner blower, passes through relay K
3with blower fan M
2connect, play the effect automatically regulated.
Figure 14 is the waveform schematic diagram of alternating current after rectification circuit, namely the polarity of voltage of alternating current is upper just lower negative originally, shown in the upper figure namely in Figure 14, adopts the single phase bridge type rectifier circu in preferred embodiment, thus obtain a unidirectional pulsating volage, shown in the figure below namely in Figure 14.
Shown in composition graphs 5 and Fig. 8, when microcontroller receives the high level signal that air mass sensor Q sends, thus find that air quality goes wrong, and control signal is passed through I/O
7be transferred on buzzer, make it shout a shout, remind the quality of food in people's refrigerator to occur problem.
Shown in Figure 11 and Figure 12, when door is shut time, refrigerator door open-close SW
4be in disconnection, circuit not conducting, passes through I/O
11be transferred to microcontroller, microcontroller processes, and passes through I/O
10make refrigerator gate light LED
7extinguish; When door is opened time, refrigerator interrupteur SW
4be in connection status, circuit turn-on, pass through I/O
11be transferred to microcontroller, microcontroller processes, and passes through I/O
10make refrigerator gate light LED
7light.
Shown in composition graphs 4 and Figure 14, alternating current, after rectification circuit, becomes unidirectional pulsating volage, and we take sinusoidal ac as object, its sinusoidal quantity U
0=U
msin (ω t+ ψ)=U
msin (2 π f*t+ψ)=U
m(wherein ω is angular frequency to sin (2 π/T*t+ψ), and ψ is initial phase, U
mfor voltage peak, f is supply frequency, and T is the cycle), repeating rule and can draw cycle T according to data, thus according to f=1/T, ω=2 π f, draw supply frequency f and angular frequency, can U be calculated by carrying out root mean square calculation to the data in the cycle
have, and obtain voltage peak U
m, as t=0, U
0=U
msin ψ, contrasting voltage in other cycles is U
0time phase place, thus draw initial phase ψ, and according to a large amount of data acquisitions with further analyze, thus draw every electrical quantity of access power supply, to reach the effect of power supply self study, thus adapt to different access power supplys.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. a smell induction refrigerator controller, comprises controller body, it is characterized in that: described controller body comprises the power-switching circuit (1) AC signal being converted to direct current signal, gather the power supply sampling module (2) of power parameter, the smell sampling module (3) of monitoring air quality, the display providing people to operate and key-press module (4), the temperature sensing module (5) of collecting temperature information, play the buzzer circuit (7) of reminding effect, control the compressor control module (8) of compressor operating, select the solenoid valve control module (9) of freezing and refrigeration pipeline, the gate light control circuit (10) of automatic switch gate light, gather the door switch sample circuit (11) of door switch information and control the fan control module (12) of fan operation, described microcontroller (6) and power-switching circuit (1), power supply sampling module (2), smell sampling module (3), display and key-press module (4), temperature sensing module (5), buzzer circuit (7), compressor control module (8), solenoid valve control module (9), gate light control circuit (10), door switch sample circuit (11), fan control module (12) connects, described smell sampling module (3) is connected with power-switching circuit (1), described smell sampling module (3) gathers the air quality in refrigerator, thus it is rotten to judge whether food exists, and carries out alarm by buzzer circuit (7).
2. a kind of smell induction refrigerator controller according to claim 1, it is characterized in that: described power supply sampling module (2) comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller (6) is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, every electrical quantity of access power supply is calculated by microcontroller (6) interior software algorithm, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, these electrical quantitys are supplied to follow-up software control and computing uses.
3. a kind of smell induction refrigerator controller according to claim 2, it is characterized in that: described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
4. a kind of smell induction refrigerator controller according to claim 1, it is characterized in that: described smell sampling module (3) comprises air mass sensor, gas concentration in electrical resistance air in described air mass sensor and changing, thus by the software algorithm in microcontroller (6) according to the change of resistance value, judge the air quality in refrigerator.
5. a kind of smell induction refrigerator controller according to claim 1, is characterized in that: the button on described display and key-press module (4) and Diode series, be connected with I/O mouth by wire, for inputting user instruction to refrigerator controller; Described display and key-press module (4) comprise employing LED or charactron or LCDs and show, for the working of display refrigerator.
6. a kind of smell induction refrigerator controller according to claim 1, is characterized in that: described temperature sensing module (5), smell sampling module (3) are provided with more than 1 or 2 or 2.
7. a kind of smell induction refrigerator controller according to claim 1, it is characterized in that: described microcontroller (6) is built-in with A/D modular converter and I/O circuit, described power supply sampling module (2), smell sampling module (3), temperature sensing module (5) is connected with microcontroller (6) by A/D mouth, described display and key-press module (4), buzzer circuit (7), compressor control module (8), solenoid valve control module (9), gate light control circuit (10), door switch sample circuit (11), fan control module (12) is connected with microcontroller (6) by I/O mouth.
8. a kind of smell induction refrigerator controller according to claim 1, it is characterized in that: described compressor control module (8) is connected with the compressor in refrigerator, described solenoid valve control module (9) is connected with the magnetic valve in refrigerator.
9. a kind of smell induction refrigerator controller according to claim 1, it is characterized in that: described door switch sample circuit (11) is connected with the switch in refrigerator doors, described gate light control circuit (10) is connected with the gate light in refrigerator, when refrigerator doors is opened, switch closes, circuit turn-on, Continuity signal is transferred to microcontroller (6), sends control signal by microcontroller (6), light gate light, when refrigerator doors is closed, cut-off switch, extinguishes gate light.
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| CN106326986A (en) * | 2016-08-24 | 2017-01-11 | 贵州铜仁和泰茶业有限公司 | Withering machine control method based on pattern recognition |
| CN106766662A (en) * | 2017-01-19 | 2017-05-31 | Tcl家用电器（合肥）有限公司 | Food materials monitoring management method and system in refrigerator |
| CN107289730A (en) * | 2017-08-12 | 2017-10-24 | 李良杰 | Refrigerator monitor |
| CN107796154A (en) * | 2016-09-07 | 2018-03-13 | Bsh家用电器有限公司 | Refrigerating appliance with smell sensor and the monitoring device for refrigerating appliance |
| CN108050766A (en) * | 2017-12-24 | 2018-05-18 | 玉林市玉州区万通华信科技服务部 | A kind of freezer chamber of refrigerator is not turned off warning device with chamber door |
| CN109114879A (en) * | 2018-08-20 | 2019-01-01 | 长虹美菱股份有限公司 | A kind of real-time preservation method of the household electric refrigerator adaptive based on power grid |
| CN111964325A (en) * | 2019-05-20 | 2020-11-20 | 博西华电器（江苏）有限公司 | Refrigerator odor removal control method and system, refrigerator and computer storage medium |
| CN113819711A (en) * | 2021-08-25 | 2021-12-21 | 深圳市智莱科技股份有限公司 | Refrigerator fault monitoring system and method |
| CN113960945A (en) * | 2021-10-26 | 2022-01-21 | 珠海格力电器股份有限公司 | Dish washer remove flavor detection circuitry and dish washer |
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| CN107796154A (en) * | 2016-09-07 | 2018-03-13 | Bsh家用电器有限公司 | Refrigerating appliance with smell sensor and the monitoring device for refrigerating appliance |
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| CN107289730A (en) * | 2017-08-12 | 2017-10-24 | 李良杰 | Refrigerator monitor |
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| CN109114879A (en) * | 2018-08-20 | 2019-01-01 | 长虹美菱股份有限公司 | A kind of real-time preservation method of the household electric refrigerator adaptive based on power grid |
| CN109114879B (en) * | 2018-08-20 | 2020-12-04 | 长虹美菱股份有限公司 | Power grid self-adaption based real-time fresh-keeping method for household refrigerator |
| CN111964325A (en) * | 2019-05-20 | 2020-11-20 | 博西华电器（江苏）有限公司 | Refrigerator odor removal control method and system, refrigerator and computer storage medium |
| CN113819711A (en) * | 2021-08-25 | 2021-12-21 | 深圳市智莱科技股份有限公司 | Refrigerator fault monitoring system and method |
| CN113960945A (en) * | 2021-10-26 | 2022-01-21 | 珠海格力电器股份有限公司 | Dish washer remove flavor detection circuitry and dish washer |
| CN113960945B (en) * | 2021-10-26 | 2023-08-22 | 珠海格力电器股份有限公司 | Deodorizing detection circuit of dish washer and dish washer |
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Application publication date: 20151028 |