CN202583769U - Smoke exhaust ventilator control system based on single chip microcomputer - Google Patents
Smoke exhaust ventilator control system based on single chip microcomputer Download PDFInfo
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- CN202583769U CN202583769U CN 201220180718 CN201220180718U CN202583769U CN 202583769 U CN202583769 U CN 202583769U CN 201220180718 CN201220180718 CN 201220180718 CN 201220180718 U CN201220180718 U CN 201220180718U CN 202583769 U CN202583769 U CN 202583769U
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Abstract
The utility model relates to a smoke exhaust ventilator control system based on a single chip microcomputer. The smoke exhaust ventilator control system comprises a single chip microcomputer, a detection unit, a peripheral controlled unit and a storage device. The detection unit comprises a keyboard entry detection circuit module, a smoke detection circuit module, a coal gas detection circuit module, a temperature detection circuit module, a light collection circuit module and a pyroelectric sensor circuit module. The peripheral controlled unit comprises a driving circuit module, a key reset circuit module, a lighting circuit module and a liquid crystal display circuit module. Each circuit module in the detection unit is connected with a corresponding input end of the single chip microcomputer, and each circuit module in the peripheral controlled unit is connected with a corresponding output end of the single chip microcomputer. The smoke exhaust ventilator control system of the utility model has the following advantages: the lighting function and the smoke exhaust function can be started according to the light intensity and the fume concentration, and an alarm will be generated for emergency situations such as coal gas leakage, long-time unmanned operation, excessive operating ambient temperature and the like, so advantages of security and reliability are realized; and the timing operation can be performed on cooking at the same time, so the advantage of more convenient operation is realized.
Description
Technical field
The utility model relates to kitchen utensils and circuit control field, refers more particularly to a kind of safe and reliable SCM Based smoke exhaust ventilator control system.
Background technology
Traditional smoke exhaust ventilator can only provide the function of oil pumping cigarette and illumination mostly at present; Do not possess Based Intelligent Control and safe early warning function; Use in the kitchen range process the user, because carelessness forgets that opening smoke exhaust ventilator causes the oil smoke concentration in the kitchen bigger, reduces indoor air quality; Moreover, when the user forgets when closing kitchen range, being prone to initiation fire, safety, reliability are lower.
Summary of the invention
The utility model provides a kind of reliable, intelligent SCM Based smoke exhaust ventilator control system to overcome the deficiency of prior art.Its technical scheme is following:
Said smoke exhaust ventilator control system comprises single-chip microcomputer, detecting unit, controlled cell and storer; Detecting unit comprises that keyboard input detecting circuit module, Smoke Detection circuit module, coal gas testing circuit module, temperature sensing circuit module, light Acquisition Circuit module, heat releases propagated sensation sensor circuit module; Controlled cell comprises drive circuit module, button reset circuit module and liquid crystal display circuit module; Each circuit module connects with the corresponding input end of single-chip microcomputer in the detecting unit, and each circuit module connects with the corresponding output terminal of single-chip microcomputer in the controlled cell.
Said smoke exhaust ventilator control system further design is; Drive circuit module comprises code translator, latch, Sheffer stroke gate and Darlington; The input end of code translator connects with the corresponding port of single-chip microcomputer respectively; The corresponding input end that connects Sheffer stroke gate of the output terminal of code translator, the output terminal of Sheffer stroke gate connects the corresponding input end of latch, the output terminal of code translator respectively with the corresponding connection of input end of Darlington.
Said smoke exhaust ventilator control system further design is; Light Acquisition Circuit module comprises analog-digital chip, pull-up resistor and a photoresistance; Fixed value resistance is connected in series with photoresistance; The external constant voltage of two resistance, the input end of analog-digital chip is connected with photoresistance line intermediate contact with fixed value resistance, and the EBI of analog-digital chip is connected with single-chip microcomputer.
Said smoke exhaust ventilator control system further design is; The liquid crystal display circuit module mainly is made up of liquid crystal display; The data port of liquid crystal display connects with the corresponding port of single-chip microcomputer respectively, and the data selecting side of liquid crystal display, read-write selecting side, enable signal end connect with the corresponding port of single-chip microcomputer respectively.
Said smoke exhaust ventilator control system further design is; Coal gas testing circuit module comprises gas sensor, two operational amplifiers and reverser; One output terminal of gas sensor is connected in series with first operational amplifier and second operational amplifier in order; Wherein the output terminal of first operational amplifier is connected with the input end of high impedance in the same way of second operational amplifier, and the output terminal of second operational amplifier connects reverser, and the output terminal of reverser connects the middle broken ends of fractured bone of single-chip microcomputer; The output terminal of Smoke Detection circuit module is connected with the middle broken ends of fractured bone of single-chip microcomputer.
Said smoke exhaust ventilator control system further design is that the temperature sensing circuit module comprises a temperature sensor and a pull-up resistor, the external pull-up resistor of temperature sensor, and temperature sensor connects with the corresponding port of single-chip microcomputer.
Said smoke exhaust ventilator control system further design is, keyboard input detecting circuit module is touched switch by five and the point that connects and formed, five switches respectively with the corresponding port connection of single-chip microcomputer.
Said smoke exhaust ventilator control system further design is that storer comprises storage chip, and the EBI of storage chip connects with the corresponding port of single-chip microcomputer.
Said smoke exhaust ventilator control system further design is; Button reset circuit module comprises that the little process chip of low-power consumption and any touch switch; Point touches switch and is connected with the input end of little process chip, and the output terminal of little process chip connects with the corresponding port of single-chip microcomputer respectively.
Said smoke exhaust ventilator control system further design is that single-chip microcomputer is the AT89C51 single-chip microcomputer.
The smoke exhaust ventilator control system that the utility model provides has following advantage: can come to start respectively illumination and smoke evacuation function according to the power and the oil smoke concentration of light; And the leakage and the kitchen range top that are directed against coal gas are reported to the police from people's situation and the more high emergency case of kitchen range top ambient temperature for a long time automatically; Make smoke exhaust ventilator can cooperate kitchen range well, thereby it is safer, reliable that kitchen range are used; Simultaneously can carry out timing to culinary art, it is more convenient that the user is operated.
Description of drawings
Fig. 1 is the module diagram of SCM Based smoke exhaust ventilator control system.
Fig. 2 is the AT89C51 single chip circuit synoptic diagram of SCM Based smoke exhaust ventilator control system.
Fig. 3 is the drive circuit module synoptic diagram of SCM Based smoke exhaust ventilator control system.
Fig. 4 is the hotness pyroelectric sensor circuit module synoptic diagram of SCM Based smoke exhaust ventilator control system.
Fig. 5 is the coal gas testing circuit module diagram of SCM Based smoke exhaust ventilator control system.
Fig. 6 is the light Acquisition Circuit module diagram of SCM Based smoke exhaust ventilator control system.
Fig. 7 is the storer synoptic diagram of SCM Based smoke exhaust ventilator control system.
Fig. 8 is the temperature sensing circuit module diagram of SCM Based smoke exhaust ventilator control system.
Fig. 9 is the liquid crystal display circuit module diagram of SCM Based smoke exhaust ventilator control system.
Figure 10 is the button reseting module circuit diagram of SCM Based smoke exhaust ventilator control system.
Figure 11 is the input detection module circuit diagram of SCM Based smoke exhaust ventilator control system.
Embodiment
The SCM Based smoke exhaust ventilator control system of present embodiment; Comprise single-chip microcomputer, detecting unit, peripheral controlled cell and storer; Detecting unit comprises that keyboard input detecting circuit module, Smoke Detection circuit module, coal gas testing circuit module, temperature sensing circuit module, light Acquisition Circuit module, heat releases propagated sensation sensor circuit module; Controlled cell comprises drive circuit module, button reset circuit module and liquid crystal display circuit module; Each circuit module connects with the corresponding input end of single-chip microcomputer in the detecting unit, and each circuit module connects with the corresponding output terminal of single-chip microcomputer in the peripheral controlled cell.The single-chip microcomputer that adopts in the present embodiment is the AT89C51 single-chip microcomputer.
Drive circuit module comprises code translator, latch, Sheffer stroke gate, Darlington and hummer, and the code translator that present embodiment adopts is the 74AL138 chip, and latch is M74HC573MR, and Darlington is ULN2003.3 input ends of 74AL138 chip respectively with the P2.5 of AT89C51 chip; P2.6; The P2.7 end is corresponding to be connected, the corresponding input end that connects Sheffer stroke gate of the output terminal of 74AL138 chip, and the output terminal of Sheffer stroke gate connects the corresponding input end of M74HC573MR chip; Output terminal 1Q ~ the 8Q of M74HC573MR chip respectively with the corresponding connection of input end IN1 ~ IN7 of ULN2003, the output terminal of ULN2003 connects hummer; The structure that the driving circuit that present embodiment provides can take some groups of Sheffer stroke gates to be connected with the 74AL138 chip forms the multifunctional multiplexing structure and expands other functional circuit.
Light Acquisition Circuit module comprises analog-digital chip, fixed value resistance and a photoresistance; Fixed value resistance is connected in series with photoresistance; The external constant voltage of two resistance; The analog-digital chip that present embodiment adopts is the PCF8591 chip, and wherein the AN0 input end of PCF8591 chip is connected with photoresistance line intermediate contact with fixed value resistance, and the EBI SCL of PCF8591 chip, SDA are connected with P2.2, the P2.3 of AT89C51 chip respectively.When holding state; Photoresistance in the light acquisition module according to the power of this light not in the same way the AN0 port of PCF8591 chip different level is provided; And AD sampling/conversion through the PCF85911 chip; Numerical value that transforms and the threshold value in the storer are compared, and the output signal " day " of result's correspondence that will compare again perhaps " night " is presented on the LCD1602 liquid crystal display that is connected with single-chip microcomputer.
The liquid crystal display circuit module mainly is made up of liquid crystal display; Liquid crystal display in the present embodiment adopts the LCD1602 liquid crystal display; 8 bit data mouth D0 ~ D7 of LCD1602 liquid crystal display hold corresponding connection with the P00 ~ P0.7 of AT89C51 single-chip microcomputer respectively; Data selecting side RS is connected with the P2.0 of AT89C51 single-chip microcomputer, and read-write selecting side R/W is connected with the P2.1 of AT89C51 single-chip microcomputer, and the enable signal end is connected with the P1.2 of AT89C51 single-chip microcomputer.
Coal gas testing circuit module comprises gas sensor, two operational amplifiers and reverser; Present embodiment adopts the MQ-2 gas sensor; One output terminal of MQ-2 gas sensor connects a load RL; The other end ground connection of load RL, another output terminal of MQ-2 gas sensor is connected in series with first operational amplifier and second operational amplifier in order, and wherein the output terminal of first operational amplifier is connected with the input end of high impedance in the same way of second operational amplifier; The output terminal of second operational amplifier connects reverser, and the output terminal of reverser connects the INT1 end of AT89C51 single-chip microcomputer.When gas content in the sensor air surpassed early warning value, MQ-2 resistance reduced, and load RL goes up dividing potential drop and becomes big; The reverser input becomes high level by low level, and after reverse, single-chip microcomputer INT1 mouth obtains a negative edge; Trigger and interrupt and the entering interrupt service routine, smoke exhaust ventilator starts also reports to the police.
The INT0 end of the output terminal of Smoke Detection circuit module and AT89C51 single-chip microcomputer is connected, and this module is used to detect whether leaving of kitchen personnel, bowl dry combustion method when preventing that personnel from leaving for a long time.Module provides three ports, is used to export the high-low level signal.Get into its induction range as the people and then export high level, in the delay time section, if there is human body movable in its induction range, its output will keep high level always, and after the people leaves, just delaying time becomes low level with high level.Utilize the exterior interrupt INT0/INT1 of single-chip microcomputer can realize monitoring, exterior interrupt all is that low level or pulse negative edge trigger.Utilize the high-low level that module port provides to connect a reverser, when nobody the time, the module output low level; After anti-phase, connect INT0, do not trigger interruption, module output high level when personnel get into; After reverse, there is a negative edge to trigger singlechip interruption; Timing in interrupt service routine, if overtime then send chimes of doom, and would cut off source of the gas automatically.
The temperature sensing circuit module comprises a temperature sensor and a pull-up resistor, and present embodiment adopts the DS18B20 temperature sensor, and the vdd terminal of temperature sensor DS18B20 meets external pull-up resistor R1, and GND holds ground connection, and the DQ end is connected with the P1.4 pin of single chip computer AT 89C51.Its temperature-measuring range is-55 ° of C～+ 125 ° C, and thermometric resolution can reach 0.0625 ° of C, and dut temperature is with the 16 bit complement form serials output of tape symbol expansion.
Keyboard input detecting circuit module is touched switch by five and the point that connects and is formed, five switches respectively with the P3.0 of AT89C51 single-chip microcomputer, P3.1, P3.2, P3.3, P3.4 is corresponding to be connected.The keyboard input detects adjustment, the adjustment of timing, the manually perhaps switching of automatic operation mode of major control upper temperature limit.When upper limit button is adjusted, adjusted result stored among the AT24C02 preserve, so that can recover after system's power down.
Storer comprises storage chip, and the storage chip that present embodiment provides is the AT24C02 chip, the bus SCD of this chip, SCL respectively with the P2.2 of AT89C51 single-chip microcomputer, P2.3 connects.Owing to adopted the I2C bus rule, realized two-way communication.This module is main in system to play storage temperature upper limit data, so that the initialization during system start-up.
The button reset circuit comprises that the little process chip of low-power consumption and any touch switch; Little process chip of present embodiment adopts the MAX6304 chip; Point touches switch and is connected with the input end of said MAX6304 chip, and the output terminal RST of MAX6304 chip, WDI are connected with RESET, the P1.2 of AT89C51 single-chip microcomputer respectively; The lighting circuit module is connected with the P0.4 end of AT89C51 single-chip microcomputer.
Claims (10)
1. SCM Based smoke exhaust ventilator control system; It is characterized in that; Comprise single-chip microcomputer, detecting unit, controlled cell and storer; Said detecting unit comprises that keyboard input detecting circuit module, Smoke Detection circuit module, coal gas testing circuit module, temperature sensing circuit module, light Acquisition Circuit module, heat releases propagated sensation sensor circuit module; Said controlled cell comprises drive circuit module, button reset circuit module, lighting circuit module and liquid crystal display circuit module, and each circuit module connects with the corresponding input end of single-chip microcomputer in the said detecting unit, and each circuit module connects with the corresponding output terminal of single-chip microcomputer in the said controlled cell.
2. according to the said SCM Based smoke exhaust ventilator control system of claim 1; It is characterized in that; Said drive circuit module comprises code translator, latch, Sheffer stroke gate and Darlington, and the input end of said code translator connects with the corresponding port of said single-chip microcomputer respectively, the corresponding input end that connects said Sheffer stroke gate of the output terminal of code translator; The output terminal of Sheffer stroke gate connects the corresponding input end of latch, and the output terminal of code translator is connected with the input end of said Darlington respectively.
3. according to the said SCM Based smoke exhaust ventilator control system of claim 2; It is characterized in that; Said light Acquisition Circuit module comprises analog-digital chip, pull-up resistor and a photoresistance, and said fixed value resistance is connected in series with photoresistance, the external constant voltage of two resistance; The input end of analog-digital chip is connected with photoresistance line intermediate contact with fixed value resistance, and the EBI of analog-digital chip is connected with single-chip microcomputer.
4. according to the said SCM Based smoke exhaust ventilator control system of claim 2; It is characterized in that; Said liquid crystal display circuit module mainly is made up of liquid crystal display; The data port of said liquid crystal display connects with the corresponding port of said single-chip microcomputer respectively, and the data selecting side of liquid crystal display, read-write selecting side, enable signal end connect with the corresponding port of single-chip microcomputer respectively.
5. according to the said SCM Based smoke exhaust ventilator control system of claim 2; It is characterized in that; Said coal gas testing circuit module comprises gas sensor, two operational amplifiers and reverser; One output terminal of said gas sensor is connected in series with said first operational amplifier and second operational amplifier in order; Wherein the output terminal of first operational amplifier is connected with the input end of high impedance in the same way of second operational amplifier, and the output terminal of second operational amplifier connects said reverser, and the output terminal of reverser connects the middle broken ends of fractured bone of said single-chip microcomputer; The output terminal of said Smoke Detection circuit module is connected with the middle broken ends of fractured bone of single-chip microcomputer.
6. according to claim 2 said SCM Based smoke exhaust ventilator control system; It is characterized in that; Said temperature sensing circuit module comprises a temperature sensor and a pull-up resistor, the external said pull-up resistor of said temperature sensor, and temperature sensor connects with the corresponding port of single-chip microcomputer.
7. according to claim 2 said SCM Based smoke exhaust ventilator control system, it is characterized in that said keyboard input detecting circuit module is touched switch by five and the point that connects and formed, said five switches connect with the corresponding port of said single-chip microcomputer respectively.
8. according to claim 2 said SCM Based smoke exhaust ventilator control system, it is characterized in that said storer comprises storage chip, the EBI of said storage chip connects with the corresponding port of said single-chip microcomputer.
9. according to claim 2 said SCM Based smoke exhaust ventilator control system; It is characterized in that; Said button reset circuit module comprises that the little process chip of low-power consumption and any touch switch; Said point touches switch and is connected with the input end of said little process chip, and the output terminal of little process chip connects with the corresponding port of said single-chip microcomputer respectively.
10. according to the said SCM Based smoke exhaust ventilator control system of claim 1, it is characterized in that said single-chip microcomputer is the AT89C51 single-chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220180718 CN202583769U (en) | 2012-04-26 | 2012-04-26 | Smoke exhaust ventilator control system based on single chip microcomputer |
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| CN 201220180718 CN202583769U (en) | 2012-04-26 | 2012-04-26 | Smoke exhaust ventilator control system based on single chip microcomputer |
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| CN 201220180718 Expired - Fee Related CN202583769U (en) | 2012-04-26 | 2012-04-26 | Smoke exhaust ventilator control system based on single chip microcomputer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197584A (en) * | 2013-03-28 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Intelligent control system of kitchen ventilator |
| CN103629717A (en) * | 2013-11-22 | 2014-03-12 | 青岛海尔软件有限公司 | Self-adaptive control device of full-automatic range hood |
| CN103823397A (en) * | 2014-01-14 | 2014-05-28 | 唐晓烽 | Intelligent control circuit for exhaust fan/range hood |
| CN104238426A (en) * | 2014-09-22 | 2014-12-24 | 王名杰 | High-reliability human body induction power supply controller |
| CN104266242A (en) * | 2014-01-13 | 2015-01-07 | 浙江康纳电器有限公司 | Oil fume instantaneous change detection system and detection method |
| CN104279595A (en) * | 2014-08-29 | 2015-01-14 | 成都高华电气有限公司 | Intelligent safety smoke exhaust ventilator |
| CN105115003A (en) * | 2015-08-26 | 2015-12-02 | 成都科创城科技有限公司 | Intelligent household self-adaptive oil discharge and odor induction equipment |
| CN106461234A (en) * | 2014-05-01 | 2017-02-22 | 布罗恩-努托恩有限责任公司 | Sensor-enabled range hood system and method |
| CN110906406A (en) * | 2019-12-09 | 2020-03-24 | 厦门华厦学院 | Multifunctional range hood control system, range hood and control method |
-
2012
- 2012-04-26 CN CN 201220180718 patent/CN202583769U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197584A (en) * | 2013-03-28 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Intelligent control system of kitchen ventilator |
| CN103629717A (en) * | 2013-11-22 | 2014-03-12 | 青岛海尔软件有限公司 | Self-adaptive control device of full-automatic range hood |
| CN104266242A (en) * | 2014-01-13 | 2015-01-07 | 浙江康纳电器有限公司 | Oil fume instantaneous change detection system and detection method |
| CN104266242B (en) * | 2014-01-13 | 2017-06-16 | 浙江康纳电器有限公司 | The instantaneous variation detecting system and detection method of a kind of oil smoke |
| CN103823397A (en) * | 2014-01-14 | 2014-05-28 | 唐晓烽 | Intelligent control circuit for exhaust fan/range hood |
| CN109579091A (en) * | 2014-05-01 | 2019-04-05 | 布罗恩-努托恩有限责任公司 | Sensor enables fume exhauster system and method |
| CN109579091B (en) * | 2014-05-01 | 2020-02-07 | 布罗恩-努托恩有限责任公司 | Sensor enabled range hood system and method |
| CN106461234A (en) * | 2014-05-01 | 2017-02-22 | 布罗恩-努托恩有限责任公司 | Sensor-enabled range hood system and method |
| CN106461234B (en) * | 2014-05-01 | 2019-01-01 | 布罗恩-努托恩有限责任公司 | Sensor enables fume exhauster system and method |
| CN104279595A (en) * | 2014-08-29 | 2015-01-14 | 成都高华电气有限公司 | Intelligent safety smoke exhaust ventilator |
| CN104238426A (en) * | 2014-09-22 | 2014-12-24 | 王名杰 | High-reliability human body induction power supply controller |
| CN105115003A (en) * | 2015-08-26 | 2015-12-02 | 成都科创城科技有限公司 | Intelligent household self-adaptive oil discharge and odor induction equipment |
| CN110906406A (en) * | 2019-12-09 | 2020-03-24 | 厦门华厦学院 | Multifunctional range hood control system, range hood and control method |
| CN110906406B (en) * | 2019-12-09 | 2022-07-05 | 厦门华厦学院 | Multifunctional range hood control system, range hood and control method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130426 |