CN103268128A - Microenvironment temperature control system based on singlechip - Google Patents
Microenvironment temperature control system based on singlechip Download PDFInfo
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- CN103268128A CN103268128A CN2013101296520A CN201310129652A CN103268128A CN 103268128 A CN103268128 A CN 103268128A CN 2013101296520 A CN2013101296520 A CN 2013101296520A CN 201310129652 A CN201310129652 A CN 201310129652A CN 103268128 A CN103268128 A CN 103268128A
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Abstract
The invention discloses a microenvironment temperature control system based on a singlechip. The microenvironment temperature control system is characterized in that by using the singlechip which is matured in technology and convenient to adjust and modify and a periphery specific system, the partial small environment temperature can be precisely controlled and adjusted. A heating and refrigerating system adopts two layers of different special covers, so that the temperature control difficulty is greatly reduced, and the precision is improved. The microenvironment temperature control system is ingenious in design, simple in structure, reliable and convenient to execute and can be applied to the technical fields of realizing control for microbiological lab temperature in a working environment of high-precision machinery and instruments and the like.
Description
Technical field
The present invention relates to a kind of SCM Based microenvironment temperature control system, the design that is specifically related to control system and peripheral system design, programming and has the good cover of microstructure aperture heat interchange.The environment that can be applicable to high-accuracy machinery and instrument work is realized technical fields such as Experiment on Microbiology room temperature control.
Background technology
Temperature be life and produce in basic physical amount, what its characterized is the cold and hot degree of object.Any physics of occurring in nature, chemical process all closely interrelate with temperature.In a lot of production runes, the measurement of temperature and control are all directly and keep the safety in production, enhance productivity, guarantee that great technical economical indexes such as product quality, energy savings interrelate.Enter 21st century, scientific and technological high speed development, the application of microelectric technique, minitype single-chip machine technology, Precision Machinery Design develops on an unprecedented scale especially, the continuous development that is accompanied by science and technology and produces, a lot of working equipments are more and more higher to the temperature requirement of environment.Be the important parameter that guarantees grating ruling as temperature, not accurate control temperature will not cause grating to scrap, and obviously the temperature control and measurement system becomes the problem that technical development has to face.Single-chip microcomputer is since late 1970s is born, through development and the perfect every field that extensively is penetrated into our productive life of many decades.Such as: the network communication of computing machine and data transmission, the real-time control of industrial automation process and data are handled, the safe-guard system of the various vehicles, medicine equipment etc.Chinese invention patent ' temperature control system that is used for lathe ', the patent No. ' CN 101352814A '.This invention is having outstanding effect aspect the control of lathe temperature, still, still exists some essence not enough: 1) control system complexity, and ceaselessly regulating and controlling hot-air and cold air enter the balance that the interior ratio of cover reaches temperature; 2) gas after heating and refrigeration directly enters in the lathe cover and can cause the local temperature cataclysm, must cause experimental defects even failure; 3) gas after a large amount of the processing is such as the air after heating, though improved case temperature for the moment after entering cover, too much hot-air can continue to improve case temperature, causes a large amount of wastes; 4) it is not enough to control accuracy of temperature that the gas after a large amount of the processing enters the interior explanation of cover, often will freeze after the heating thereupon, and vice versa.
Summary of the invention
At the problems referred to above, a kind of SCM Based microenvironment control system provided by the present invention can realize the high precision control of temperature in the microenvironment and stable.It is simple and reliable to have control circuit, is convenient to operation and change, and one-piece construction is smaller, is convenient to transplant.It is higher and realize to change in control system easily to have temperature control precision.Simultaneously, can realize slowly carrying out heat interchange, thereby reduce temperature controlled difficulty and improved the precision of controlling temperature with the isolated of external environment better.
The present invention to achieve these goals, can use following scheme: the invention provides a kind of SCM Based microenvironment temperature control system, comprise: refrigeration unit, heating unit, display unit, be used for the environment temperature of the equipment on the worktable is carried out accurate temperature controlling, it is characterized in that, have: two dustproof heat screens are respectively the first dustproof heat screen and second heat interchange control cover; By key control unit, be used for setting the duty of preset temperature microenvironment temperature control system; Temperature detecting unit is used for the inner environment temperature of instant detection second heat interchange control cover, and the output temperature signal; And single-chip microcomputer, the Single-chip Controlling display unit, heating unit, refrigeration unit by key control unit, receives the also temperature signal for the treatment of temperature detecting unit output; Wherein, second heat interchange control cover is placed on the inside of the first dustproof heat screen, it is inner that worktable is placed on second heat interchange control cover, refrigeration unit and heating unit are arranged between the first dustproof heat screen and second heat interchange control cover, single-chip microcomputer is used for receiving and the treatment temperature signal, obtain environment temperature, and environment temperature and preset temperature compared, when measured temperature is lower than preset temperature, the heating of Single-chip Controlling heating unit, when environment temperature is higher than preset temperature, Single-chip Controlling refrigeration unit refrigeration, second heat interchange control is covered with and is equipped with heat exchange unit, and heat exchange unit is used for the environment between the first dustproof heat screen and second heat interchange control cover and the environment in second heat interchange control cover are carried out heat interchange.
Microenvironment temperature control system involved in the present invention, the water cooling plant that the refrigeration unit is made up of flexible pipe.
In addition, second heat interchange control cover is provided with a plurality of microstructure apertures as heat exchange unit.
The invention effect
The microenvironment temperature control system of a kind of basic single-chip microcomputer provided by the present invention, owing to used two-layer cover body with different structure function, make heat interchange slowly be carried out, avoided the abrupt change of local temperature, greatly reduce temperature controlled difficulty with the isolated of external environment, improved precision.Also because used single-chip microcomputer to make control circuit simple and reliable for the control core, be convenient to operation and change, also have the smaller advantage of being convenient to transplant of one-piece construction.Use the temperature detecting unit of instant measures ambient temperature that temperature signal is fed back to single-chip microcomputer in real time, add that single-chip microcomputer has control heating unit and the refrigeration unit of degree of precision, has realized the high-precision control to the microenvironment temperature.Because heating unit and refrigeration unit are arranged between the two-layer cover body, thereby by to the control of the environment temperature between the two-layer cover body and then more reposefully, precision more highland is controlled the environment temperature of the microenvironment of inner most worktable.In addition, between two-layer cover body, be provided with heat exchange unit and can realize heat interchange fully timely, thereby can prevent that, area too fast because of convection current is excessive causes the situation temperature shock.
Description of drawings
Fig. 1 is that synoptic diagram is formed in each unit of microenvironment temperature control system.
Fig. 2 is the connection diagram of single-chip microcomputer and all the other component units.
Fig. 3 is cover body structure and temperature detection and control peripheral system mounting means figure.
Fig. 4 is based on the temperature control analogue system synoptic diagram of single-chip microcomputer.
Fig. 5 is based on the temperature of single-chip microcomputer and controls temperature detecting unit synoptic diagram in the analogue system.
Fig. 6 is based on the pin synoptic diagram of single-chip microcomputer in the temperature control analogue system of single-chip microcomputer.
Fig. 7 be based in the temperature control analogue system of single-chip microcomputer by key control unit by the key control unit synoptic diagram.
Fig. 8 is based on the synoptic diagram of display unit in the temperature control analogue system of single-chip microcomputer.
Fig. 9 is based on the synoptic diagram of heating unit and refrigeration unit in the temperature control analogue system of single-chip microcomputer.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of a kind of SCM Based microenvironment temperature control system that the present invention relates to is done to elaborate, but the present invention is not limited only to this embodiment.Understand for the public is had completely the present invention, in following the preferred embodiments of the present invention, describe concrete details in detail.
Fig. 1 is temperature control system one-piece construction figure.
As shown in Figure 1, microenvironment temperature control system involved in the present invention by single-chip microcomputer,
Temperature detecting unit, heating unit, refrigeration unit, display unit and by key control unit.
Wherein, temperature detecting unit comprises temperature measuring device 106; Heating unit comprises heater element 104 and burner on light; Refrigeration unit comprises water-cooled device 105 and the refrigeration pilot lamp of being made up of flexible pipe; Display unit comprises LCD electronic display 109; Temperature detecting unit comprises temperature measuring device 106 and analog/digital converter; Comprise button controller spare 108 by key control unit.
Fig. 2 is the connection diagram of single-chip microcomputer and all the other component units.
As shown in Figure 2, the model of the single-chip microcomputer 101 that uses of microenvironment temperature control system involved in the present invention is AT89S51.The pin of single chip computer AT 89S51 connects 5V power supply, 4x4 button controller spare 108, analog/digital converter and temperature measuring device 106, single-chip minimum system, burner on light and heater element 104, refrigeration pilot lamp and water-cooled device 105, maintenance pilot lamp and LCD electronic display 109 respectively, in order to control temperature detecting unit, heating unit, refrigeration unit, display unit and by key control unit.
Wherein, heater element, water-cooled device, maintenance pilot lamp and LCD electronic display use power supply to power.
Fig. 3 is cover body structure and temperature detection and control peripheral system mounting means figure.
As shown in Figure 3, the microenvironment temperature control system 100 that the present invention relates to is respectively the first dustproof heat screen 102 and second heat interchange control cover 103 for we have designed the structure of two-layer cover to the precision of temperature variation control to improving.Wherein the effect of the first dustproof heat screen 102 is that the working equipment on the worktable and extraneous overall situation are kept apart, make things convenient for temperature control system to accuracy control over temperature, the effect of second heat interchange control cover 103 is to realize well carrying out of heat interchange, prevent because of the local temperature cataclysm of heating and the moment of freezing causes, and can realize that the long period keeps temperature stabilization.
The water-cooled device of being made up of flexible pipe 104 is arranged in the top of the first dustproof heat screen 102, heater element 105 is arranged on the middle and lower part of the first dustproof heat screen 102, symmetria bilateralis at second heat interchange control cover 103 is provided with heater element 105 respectively, can make the effect of heating more even.These arrange the cataclysm that can prevent because of heating and the local temperature that causes of refrigeration.Because heating unit and refrigeration unit are installed in two centres between the cover, with the reaction treatment of realization to air themperature, and can not lead the lasting rising of the follow-up temperature that causes because of accumulation and reduction because the working time is long.
Second heat interchange control cover, 103 usefulness heat interchange good material are made cover, and second heat interchange control cover 103 be provided with heat exchange unit, namely, make the microstructure aperture 107 of right quantity in necessary position, the heat interchange between the first dustproof heat screen 102 and second heat interchange control cover, 103 environment can be fully realized so timely, the excessive local temperature cataclysm that causes of, area too fast because of convection current can be prevented again.
Fig. 4 is SCM Based temperature control analogue system synoptic diagram.
As shown in Figure 4, utilize the temperature control system simulated program of Proteus software development.Be divided into five unit, comprise: the simulation unit of temperature measuring device 106, the simulation unit of single-chip microcomputer 101, the simulation unit of 4x4 button controller spare 108, the simulation unit of LCD electronic display 109, the simulation unit of heater element 104 and refrigeration device 105.
Wherein the model of single-chip microcomputer 101 employings is AT89S51.
Fig. 5 is temperature detecting unit synoptic diagram in the SCM Based temperature control analogue system.
As shown in Figure 5, temperature measuring device 106 is to utilize the higher thermistor of sensitivity to make, and second heat interchange that will measure in real time by the 2nd pin control cover 103 temperature inside convert digital temperature signal to and are transferred to single-chip microcomputer 101 and handle and compare.
Fig. 7 is single-chip microcomputer and pin synoptic diagram in the SCM Based temperature control analogue system.
As shown in Figure 7, single-chip microcomputer 101 and necessary minimum circuit system form, and what wherein single-chip microcomputer 101 adopted is AT89S51 type single-chip microcomputer, and wherein the 11st pin of single-chip microcomputer 101 obtains the temperature digital signal from temperature measuring device 106, handle and compare.Be numbered the 1st to the 8th pin for to link to each other with LCD electronic display 109.
Fig. 6 be in the SCM Based temperature control analogue system by key control unit by the key control unit synoptic diagram.
As shown in Figure 6,4x4 button controller spare 108 can be set preset temperature value as required, and the setting of integral device duty.The parameter of the parameter of preset temperature value and other integral device duty is transferred to single-chip microcomputer 101 to be handled.
Fig. 8 is the synoptic diagram of display unit in the SCM Based temperature control analogue system.
As shown in Figure 8, LCD electronic display 109 is connected by the 1st to the 8th the pin that is numbered the 9th to the 16th pin and single-chip microcomputer 101.Know the relevant informations such as duty of Current Temperatures, temperature control system by LCD electronic display 109.
Fig. 9 is the synoptic diagram of heating unit and refrigeration unit in the SCM Based temperature control analogue system.
As shown in Figure 9, single-chip microcomputer 101 compares with the preset temperature that defaults in single-chip microcomputer 101 after obtaining the temperature digital signal from temperature measuring device 106.When observed temperature during less than preset temperature, single-chip microcomputer 101 provides level signal control heater spare 104 and heats; When observed temperature during greater than preset temperature, single-chip microcomputer 101 provides level signal control refrigeration device 105 and freezes.Can feed back the environment temperature that makes around the opertaing device in real time by temperature measuring device 106 is stabilized in the required scope.
The effect of specific embodiment and effect
The microenvironment temperature control system of a kind of basic single-chip microcomputer that provides according to specific embodiment, owing to used two-layer cover body with different structure and function, make heat interchange slowly be carried out, avoided the abrupt change of local temperature, greatly reduce temperature controlled difficulty with the isolated of external environment, improved precision.Also because used AT89S51 type single-chip microcomputer to make control circuit simple and reliable for the control core, be convenient to operation and change, also have the smaller advantage of being convenient to transplant of one-piece construction.Use the temperature measuring device of the thermistor making of instant measures ambient temperature that temperature signal is fed back to single-chip microcomputer in real time, temperature measuring device uses thermistor and is placed on and need obtain having excellent precision and sensitivity by the temperature controlled table apparatus.AT89S51 type single-chip microcomputer has control heater spare and the refrigeration device of degree of precision, realized the high-precision control to the microenvironment temperature, AT89S51 type single-chip microcomputer can be controlled heating or cooling by the temperature of measurement relatively in real time and the size of preset temperature, makes design for temperature control system comparatively simple.Because heater element and refrigeration device are arranged between the two-layer cover body, thereby by to the control of the environment temperature between the two-layer cover body and then more reposefully, precision more highland is controlled the environment temperature of the microenvironment of inner most worktable, also because the refrigeration device of the water-cooled device that heater element and use flexible pipe are made has the low both economical characteristics of plant capacity.In addition, be provided with the microstructure aperture of right quantity in the necessary position of the dustproof heat screen of internal layer, can realize heat interchange fully timely, thereby can prevent that, area too fast because of convection current is excessive causes the situation temperature shock.So far, the related a kind of simple and practical microenvironment temperature control system of present embodiment has than general temperature control system control ability more accurately and fast, and simplicity of design, reliable, be easy to realize, thereby efficiently solve the control system complexity, the temperature fusion, waste and the not enough shortcoming of precision have improved new energy and serviceable life that equipment moves.
Claims (3)
1. SCM Based microenvironment temperature control system comprises: control module, refrigeration unit, heating unit, display unit, be used for the environment temperature of the equipment on the worktable is carried out accurate temperature controlling, and it is characterized in that having:
Two dustproof heat screens are respectively the first dustproof heat screen and second heat interchange control cover;
By key control unit, be used for setting the duty of preset temperature and described microenvironment temperature control system;
Temperature detecting unit is used for the inner environment temperature of instant detection described second heat interchange control cover, and the output temperature signal; And
Single-chip microcomputer, described Single-chip Controlling display unit, described heating unit, described refrigeration unit, described by key control unit, receive and handle the described temperature signal that described temperature detecting unit is exported;
Wherein, described second heat interchange control cover is placed on the inside of the first dustproof heat screen, and it is inner that described worktable is placed on described second heat interchange control cover,
Described refrigeration unit and described heating unit are arranged between the described first dustproof heat screen and described second heat interchange control cover,
Described single-chip microcomputer is used for receiving and handling described temperature signal, obtain described environment temperature, and described environment temperature and described preset temperature compared, when measured temperature is lower than described preset temperature, the described heating unit heating of described Single-chip Controlling, when described environment temperature is higher than described preset temperature, the described refrigeration unit refrigeration of described Single-chip Controlling
Described second heat interchange control cover is heat exchange unit, and described heat exchange unit is used for the environment between the described first dustproof heat screen and the described second dustproof heat screen and the environment in described second heat interchange control cover are carried out heat interchange.
2. microenvironment temperature control system according to claim 1 is characterized in that:
Wherein, the water cooling plant formed by flexible pipe of described refrigeration unit.
3. microenvironment temperature control system according to claim 1 is characterized in that:
Wherein, described second heat interchange control cover ad-hoc location is provided with a plurality of microstructure apertures as described heat exchange unit.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115509275A (en) * | 2022-10-07 | 2022-12-23 | 哈尔滨工业大学 | Multi-mode composite and active gas bath double-layer ultra-precise temperature control device |
| CN115509275B (en) * | 2022-10-07 | 2024-04-12 | 哈尔滨工业大学 | Multimode composite and active gas bath double-layer ultra-precise temperature control device |
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| JPS60107117A (en) * | 1983-11-15 | 1985-06-12 | Omron Tateisi Electronics Co | Thermostatic device |
| CN2359725Y (en) * | 1998-12-01 | 2000-01-19 | 中国科学院半导体研究所 | Thermostat |
| CN101352814A (en) * | 2007-07-26 | 2009-01-28 | 发那科株式会社 | Temperature control system for machine tool |
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| WO1982002594A1 (en) * | 1981-01-27 | 1982-08-05 | Tykesson Bengt | An apparatus for simulating energy recovery |
| JPS6051917A (en) * | 1983-08-31 | 1985-03-23 | Sanyo Electric Co Ltd | Thermostatic storehouse |
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| CN2359725Y (en) * | 1998-12-01 | 2000-01-19 | 中国科学院半导体研究所 | Thermostat |
| CN101352814A (en) * | 2007-07-26 | 2009-01-28 | 发那科株式会社 | Temperature control system for machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115509275A (en) * | 2022-10-07 | 2022-12-23 | 哈尔滨工业大学 | Multi-mode composite and active gas bath double-layer ultra-precise temperature control device |
| CN115509275B (en) * | 2022-10-07 | 2024-04-12 | 哈尔滨工业大学 | Multimode composite and active gas bath double-layer ultra-precise temperature control device |
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Inventor after: Huang Yuanshen Inventor after: Ding Weitao Inventor after: Zhou Hai Inventor after: Zhang Dawei Inventor after: Zhuang Songlin Inventor after: Jia Shaoqiu Inventor before: Ding Weitao Inventor before: Huang Yuanshen Inventor before: Zhou Hai Inventor before: Zhang Dawei Inventor before: Zhuang Songlin Inventor before: Jia Shaoqiu |
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Free format text: CORRECT: INVENTOR; FROM: DING WEITAO HUANG YUANSHEN ZHOU HAI ZHANG DAWEI ZHUANG SONGLIN JIA SHAOQIUTO: HUANG YUANSHEN DING WEITAO ZHOU HAI ZHANG DAWEI ZHUANG SONGLIN JIA SHAOQIU |
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Application publication date: 20130828 |