CN1080741A - Multi-channel intelligent damp-warm syndrome degree measurement and control instrument - Google Patents
Multi-channel intelligent damp-warm syndrome degree measurement and control instrument Download PDFInfo
- Publication number
- CN1080741A CN1080741A CN 92115262 CN92115262A CN1080741A CN 1080741 A CN1080741 A CN 1080741A CN 92115262 CN92115262 CN 92115262 CN 92115262 A CN92115262 A CN 92115262A CN 1080741 A CN1080741 A CN 1080741A
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- circuit
- warm syndrome
- damp
- control
- syndrome degree
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- 208000011580 syndromic disease Diseases 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000002360 explosive Substances 0.000 abstract description 2
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Air Conditioning Control Device (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
A kind of multi-channel intelligent damp-warm syndrome degree measurement and control instrument belongs to the Automatic Detection and Control instrument of Detection ﹠ Controling ambient humidity and temperature, it is made up of wet temperature sensor, channel selection circuit, square-wave generator, signal conversion circuit, A/D change-over circuit, Single Chip Microcomputer (SCM) system, output interface circuit, display circuit, warning circuit and control circuit, configuration software system again, realized that collection detects, shows, reports to the police and be controlled in the damp-warm syndrome degree automatic control system of one, have a precision height, working stability is reliable, antijamming capability is strong, easy for operation, automaticity is high.Factory, the workshop that the damp-warm syndrome degree is had relatively high expectations be can be widely used in and constant temperature, constant humidity and inflammable and explosive occasion etc. required.
Description
Multi-channel intelligent damp-warm syndrome degree measurement and control instrument of the present invention belongs to the automatic test controller of Detection ﹠ Controling ambient humidity and temperature.
The humidity of environment and temperature are the production of influence many industrial products, agricultural products and military product and store one of key factor of quality, in many industries of modernization industry, the humidity and the temperature that not only need testing environment also need the humidity and the temperature that control environment.Traditional psychrometer, dew point hygrometer etc. far can not satisfy above-mentioned requirements, and owing to have water so environment for use is restricted, are difficult to realize that robotization detects, and more can not realize robotization control.Along with the high development of science and technology and modernization industry, detect and control environment humidity and temperature have caused the great attention of each industrial state of the world.
Task of the present invention is to develop that a kind of working stability is reliable, multi-functional, multi-channel intelligent humidity, temperature measurement-control instrument, ambient humidity and temperature is carried out to satisfy in the modernized industry all trades and professions robotization detects and the needs of control.
Multi-channel intelligent damp-warm syndrome degree measurement and control instrument of the present invention adopts microcomputer technology and software engineering composition computer processing system and realizes.The technical solution of its hardware components is: by wet, moisture signal that temperature sensor is experienced or temperature signal, after driving by square-wave generator by channel selection circuit, to be converted to voltage signal with humidity or temperature variant resistance value through signal conversion circuit, through the A/D change-over circuit analog signals being converted to digital signal input Single Chip Microcomputer (SCM) system again handles, the output of Single Chip Microcomputer (SCM) system is by interface circuit control figure display circuit and warning circuit, and the alerting signal of warning circuit output wets to outside air-conditioning equipment and other opertaing devices through control circuit, temperature is controlled automatically.Thereby complete wet, the temperature industrial automation control system of realized integrating detection, controlling, show, report to the police.
Accompanying drawing 1 is the theory diagram of multi-channel intelligent damp-warm syndrome degree measurement and control instrument of the present invention.(1) wet temperature sensor among the figure, (2) channel selection circuit, (3) square-wave generator, (4) signal conversion circuit, (5) A/D change-over circuit, (6) Single Chip Microcomputer (SCM) system, (7) output interface circuit, (8) display circuit, (9) warning circuit, (10) control circuit.
Accompanying drawing 2,3,4,5 is the circuit embodiments figure of multi-channel intelligent damp-warm syndrome degree measurement and control instrument of the present invention.Wherein accompanying drawing 2 is the square-wave generator circuit diagram, and accompanying drawing 3 is signal conversion circuit and A/D change-over circuit figure, and accompanying drawing 4 is microcontroller system circuit and output interface circuit figure, and accompanying drawing 5 is display circuit, warning circuit and control circuit figure.
Form and principle of work below in conjunction with accompanying drawing 1 and accompanying drawing 2,3,4,5 narrations hardware of the present invention.
Resistance R in the accompanying drawing 3
S1～R
S4Be the humidity sensor of four passages, and resistance R
W1～R
W4Be the temperature sensor of four passages, eight passages are by the resistance R in the accompanying drawing 4
2～R
9Respectively with single-chip microcomputer U
1Eight signals link to each other and the channel selection circuit formed selects.Wet, temperature sensor is the key element of this instrument, especially humidity sensor, its excellent, whether bad quality and the function that directly influences this instrument, and what present embodiment adopted is that the macromolecule membrane humidity sensor is as humidity-sensitive element.By humidity-sensitive element R
S1～R
S4The moisture signal of experiencing and by thermal sensing element R
W1～R
W4The temperature signal of experiencing passes through by operational amplifier A respectively
4～A
7With A
8～A
11The signal conversion circuit of being formed (4) is converted to magnitude of voltage with resistance value.The square wave generation circuit of accompanying drawing 2, as driving power,, temperature sensor wet in order to drive, it is by positive feedback synthetic circuit A
1, integrating circuit A
2With zero passage comparator circuit A
3Form A
2The output positive feedback give A
1, the vibration after guaranteeing to power up is through A
2Form triangular wave behind the integration, through comparator circuit A
3The back forms the square wave of frequency adjustable.A
3Output as the input voltage of signal conversion circuit (4) respectively through potentiometer W
3～W
10With eight signal conversion circuit A
4～A
11Be connected.Potentiometer W in the square wave generation circuit
1Be used for regulating zero potential, W
2Be used for regulating oscillation frequency.The output of signal conversion circuit (4) is by signal amplification circuit A
12(as shown in Figure 3), voltage signal is amplified to TTL voltage.A
12Output via diode D
2, resistance R
38, R
39And capacitor C
5, C
6Behind the half-wave rectification filtering circuit of being formed, supply with U among the figure
14A/D change-over circuit (5), the D among the figure
1Be Zener diode, prevent the D/A converting circuit overvoltage and burn out.What the A/D change-over circuit of present embodiment was adopted is the ADC0809 chip, and its control signal is by RD, WR and P
26Form, CPU is used as central processing unit and carries out data computation.By the computer processing system of the present embodiment shown in the accompanying drawing 4 by single-chip microcomputer U
1With latch U
2, memory U
3, U
4, U
5Form.The interface circuit U of present embodiment
6Selected interface chip is 8155 parallel interfaces, is equipped with other chip for driving U again
7, U
8, U
9Form, with the expansion external interface, in order to show, to report to the police and control.Adopt four charactron U of common cathode by the display circuit shown in the accompanying drawing 5
10～U
13Form, have 4.Wherein one is tested place, and other three is concrete detected numerical value.Warning circuit is by diode D
3, D
4And red, yellow indicator lamp or sound equipment sheet are formed, when ambient humidity or temperature reach setting value, bright or the sound equipment sheet of redness or yellow alarm pilot lamp sends can debate other sound, and the output control signal is carried out automatic humidifying or temperature adjustment control to external control devices such as air-conditioning equipment etc.Control circuit of the present invention is by four photo-coupler G
1～G
4Form humidity or temperature-control circuit respectively.
Add the multi-channel intelligent damp-warm syndrome degree measurement and control instrument that software section is formed by above-mentioned hardware components, whole robotizations of the function such as detection, demonstration, warning, control of humidity and temperature have been realized simultaneously, and precision height, working stability is reliable, antijamming capability is strong, and is easy for operation, saves manpower, detect at a distance, control but not only centre observing and controlling is indoor, manage concentratedly; But also can imbed relative humidity and the temperature in (as grain, tealeaves, tobacco, cotton etc.) measurement thing heap in the tested controlled article; Also can be used for humidity and measurement and control of temperature inflammable, explosive occasion.Therefore can be used for higher workshop, the factory of temperature and humidity requirement and require the workshop of constant temperature, constant humidity and occasions such as arsenal, grain depot, tealeaves warehouse, tobacco warehouse, textile warehouse, pit.
Claims (5)
1, a kind of multi-channel intelligent damp-warm syndrome degree measurement and control instrument, after it is characterized in that the moisture signal experienced by humidity or temperature sensor (1) or temperature signal are selected by channel selection circuit (2), drive through square-wave generator (3), to be converted to voltage signal with humidity or temperature variant resistance value by signal conversion circuit (4), through A/D change-over circuit (5) analog signals is converted to digital signal input Single Chip Microcomputer (SCM) system (6) again, interface circuit (7) control figure display circuit (8) and warning circuit (9) are passed through in its output, and by control circuit (10) external control devices are carried out the damp-warm syndrome degree and regulate control automatically.
2, multi-channel intelligent damp-warm syndrome degree measurement and control instrument according to claim 1 is characterized in that square-wave generator is by positive feedback synthetic circuit A
1, integrating circuit A
2With zero passage comparator circuit A
3Form.
3, multi-channel intelligent damp-warm syndrome degree measurement and control instrument according to claim 1 and 2 is characterized in that signal conversion circuit is made up of operational amplifier.
4, multi-channel intelligent damp-warm syndrome degree measurement and control instrument according to claim 1 and 2 is characterized in that display circuit demonstrates four, and wherein one is tested place, and other three is concrete detected numerical value.
5, multi-channel intelligent damp-warm syndrome degree measurement and control instrument according to claim 3 is characterized in that display circuit demonstrates four, and wherein one is tested place, and other three is concrete detected numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115262 CN1048560C (en) | 1992-12-25 | 1992-12-25 | Multi-Channel intelligent moisture and temp. measuring and controlling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115262 CN1048560C (en) | 1992-12-25 | 1992-12-25 | Multi-Channel intelligent moisture and temp. measuring and controlling instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080741A true CN1080741A (en) | 1994-01-12 |
| CN1048560C CN1048560C (en) | 2000-01-19 |
Family
ID=4947312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92115262 Expired - Fee Related CN1048560C (en) | 1992-12-25 | 1992-12-25 | Multi-Channel intelligent moisture and temp. measuring and controlling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048560C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337099C (en) * | 2004-07-21 | 2007-09-12 | 中国科学院广州电子技术研究所 | Temp. moisture monitoring meter and method for correcting error of platinum thermal resistance |
| CN101113966B (en) * | 2006-07-28 | 2012-07-04 | E+E电子有限责任公司 | Circuit and method for measuring humidity |
| CN102566617A (en) * | 2011-12-23 | 2012-07-11 | 天津市东文浩达能源技术有限公司 | Microcomputer matrix temperature control device |
| CN102778881A (en) * | 2012-08-07 | 2012-11-14 | 山东省果树研究所 | Temperature and humidity monitoring and recording integrated device for sweet cherry culturing greenhouse |
| CN101666767B (en) * | 2009-10-10 | 2012-11-21 | 北京航空航天大学 | Multichannel plant hydropenia monitoring system based on impedance measurement |
| CN103712712A (en) * | 2013-12-20 | 2014-04-09 | 淮南万泰电子股份有限公司 | Contraposition temperature measuring device for mining belt type conveyer |
| CN104090558A (en) * | 2014-07-15 | 2014-10-08 | 无锡北斗星通信息科技有限公司 | Method for monitoring environment of textile workshop |
| CN107071656A (en) * | 2017-05-23 | 2017-08-18 | 武汉中电通信有限责任公司 | Multichannel for handling many radio signals inputs gates public address set circuit |
| CN109298029A (en) * | 2018-10-23 | 2019-02-01 | 王虹 | Intelligent humidity detection device based on integral operation |
-
1992
- 1992-12-25 CN CN 92115262 patent/CN1048560C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337099C (en) * | 2004-07-21 | 2007-09-12 | 中国科学院广州电子技术研究所 | Temp. moisture monitoring meter and method for correcting error of platinum thermal resistance |
| CN101113966B (en) * | 2006-07-28 | 2012-07-04 | E+E电子有限责任公司 | Circuit and method for measuring humidity |
| CN101666767B (en) * | 2009-10-10 | 2012-11-21 | 北京航空航天大学 | Multichannel plant hydropenia monitoring system based on impedance measurement |
| CN102566617A (en) * | 2011-12-23 | 2012-07-11 | 天津市东文浩达能源技术有限公司 | Microcomputer matrix temperature control device |
| CN102778881A (en) * | 2012-08-07 | 2012-11-14 | 山东省果树研究所 | Temperature and humidity monitoring and recording integrated device for sweet cherry culturing greenhouse |
| CN103712712A (en) * | 2013-12-20 | 2014-04-09 | 淮南万泰电子股份有限公司 | Contraposition temperature measuring device for mining belt type conveyer |
| CN104090558A (en) * | 2014-07-15 | 2014-10-08 | 无锡北斗星通信息科技有限公司 | Method for monitoring environment of textile workshop |
| CN107071656A (en) * | 2017-05-23 | 2017-08-18 | 武汉中电通信有限责任公司 | Multichannel for handling many radio signals inputs gates public address set circuit |
| CN107071656B (en) * | 2017-05-23 | 2023-04-28 | 武汉中电通信有限责任公司 | Multichannel gating loudspeaker circuit for processing multi-station signal input |
| CN109298029A (en) * | 2018-10-23 | 2019-02-01 | 王虹 | Intelligent humidity detection device based on integral operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1048560C (en) | 2000-01-19 |
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