CN2525476Y - Multi-way intelligent temperature and humidity controller - Google Patents
Multi-way intelligent temperature and humidity controller Download PDFInfo
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- CN2525476Y CN2525476Y CN 01272002 CN01272002U CN2525476Y CN 2525476 Y CN2525476 Y CN 2525476Y CN 01272002 CN01272002 CN 01272002 CN 01272002 U CN01272002 U CN 01272002U CN 2525476 Y CN2525476 Y CN 2525476Y
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Abstract
The utility model provides a multi-way intelligent temperature and humidity controller and is characterized in that a plurality of sensors are respectively connected with a preamplification unit device which is connected with a multi-way switch; the multi-way switch is connected with an A/D chip which is connected with a singlechip; a temperature setting circuit, a humidity setting circuit and a channel selection circuit are respectively connected with the singlechip; the singlechip is respectively connected with a digital display circuit and a control output circuit. The utility model has the advantages of reasonable structure, multi-point temperature and humidity test and display, good long-term stability of sensors and acid-alkali resistance.
Description
Technical field:
The utility model relates to a kind of temperature and humidity measurement instrument, particularly a kind of multi-way intelligence control appliance of temperature and humidity.
Background technology:
In the industrial and agricultural production, many occasions will be measured and control temperature and humidity.At present, the temperature and humidity measurement instrument great majority of China are single-spot testings, this structure of single-spot testing is supported the cultivation place of chamber, bacterial classification etc. for large granary, large cold storage cement mark, need the place of multi-point sampler to use very inconvenient, especially Temperature Humidity Sensor is unusual important components in detection, uses many as ceramic wet type sensor, macromolecule membrane type humidity sensor, Lithia formula humidity sensor etc.Their common ground is to utilize sensor certain certain sensitive to moisture, obtains corresponding humidity.But these sensors also all in various degree exist a common shortcoming, Here it is long-term poor stability.Facts have proved: above-mentioned sensor long term exposure is subject to the influence such as dust, moisture, acid, alkali in the environment and lost efficacy in some high humidity environment.
Summary of the invention:
The purpose of this utility model is the deficiency that exists in the above-mentioned technology, and a kind of multi-way intelligence control appliance of temperature and humidity is provided.It can realize the test of multiple spot humiture, and has adopted good stability, the sensor of acid and alkali-resistance under super-humid conditions.
The purpose of this utility model is achieved in that and comprises a plurality of sensors, pre-amplifier unit, multi-way switch, single-chip microcomputer etc., it is characterized in that, a plurality of sensors are connected with the pre-amplifier unit device respectively, the amplifying unit device links to each other with multi-way switch, multi-way switch links to each other with the A/D chip, the A/D chip links to each other with single-chip microcomputer, and temperature setting circuit, humidity initialization circuit, channel selection circuit link to each other with single-chip microcomputer respectively, and single-chip microcomputer links to each other respectively with digital display circuit, controlling output circuit.
Description of drawings:
Fig. 1 is the utility model structural drawing
Fig. 2 is sensor construction figure of the present utility model
Embodiment:
As shown in Figure 1, T1, S1 are the temperature-sensing element PN junctions, and T1 is directly exposed in the air and S1 has water-immersed cotton yarn parcel, and the two has formed a humidity temperature pickup altogether.They link to each other with signal pre-amplifier unit A1, A2 respectively, signal after the amplification is sent into again among the multi-way switch MT, MT mainly constitutes timesharing by chip 4052 signal is sent into 14433 conversions of A/D chip, adopt in single-chip microcomputer 8031 systems, system calculates humidity value according to Current Temperatures, wet-bulb depression, and shows the temperature and the humidity of each passage correspondence by charactron display circuit DSP timesharing.T_SET is a temperature setting circuit, and S_SET is the humidity initialization circuit, and TUN_SEL is a channel selection circuit, and they mainly are made up of toggle switch.CS is a controlling output circuit, can make air conditioner, humidifier play shutdown according to current temperature and humidity by means of them.Above-mentioned situation is the situation of single passage, and other sensor T2, S2, T3, S3 etc. are identical with T1, S1, and corresponding pre-amplification circuit will be that A3, A4, A5, A6 etc. analogize, and will be identical with A1, A2.
As shown in Figure 2, sensor is made up of the two-way temperature sensor, and the temperature sensor that is placed directly in the observing and controlling environment is a dry bulb, and another road remains to contact with absorbent material and is wet bulb, and dry bulb is identical with the wet bulb structure.The protection overcoat that the 1 protection overcoat of making for the stainless-steel tube steel pipe is made among the figure, 2 is the epoxy encapsulation thing, and 3 is the temperature-sensing element PN junction, and 4,5 is the lead-in wire of PN junction, and 6 is two core shielding lines.The upper end of sensor PN junction 3 is connected with two leads 4,5, and lead interts in the shielding line 6 of two cores, is covered with stainless steel protection cover 1 in its outside, and epoxy encapsulation thing 2 is equipped with in the centre of protective sleeve and PN junction.The sense principle of work:
Adopt measurement with wet to measure the principle of humidity, designed the rational sensor of structure, detection signal is adopted into being the control core device with the single-chip microcomputer, calculates current humidity value by wet and dry bulb temperature, is converted into the problem of thermometric by the hygrometric problem.The measuring and controlling temp technology is a proven technique, and used sensor has thermistor, PN junction, platinum resistance, copper resistance, thermal resistance and infrared measurement of temperature etc.The utility model sets up multiple sensor to patrol and examine interface circuit, and wherein each road sensor is made up of two temperature sensors (dry bulb, wet bulb).
The utility model has the advantages that, rational in infrastructure, can and can show that the sensor long-time stability are good, and acid and alkali-resistance to the test of multiple spot humiture.
Claims (2)
1, a kind of multi-way intelligence control appliance of temperature and humidity, comprise a plurality of sensors, pre-amplifier unit, multi-way switch, single-chip microcomputer etc., it is characterized in that, a plurality of sensors are connected with the pre-amplifier unit device respectively, the amplifying unit device links to each other with multi-way switch, and multi-way switch links to each other with the A/D chip, and the A/D chip links to each other with single-chip microcomputer, temperature setting circuit, humidity initialization circuit, channel selection circuit link to each other with single-chip microcomputer respectively, and single-chip microcomputer links to each other respectively with digital display circuit, controlling output circuit.
2, according to claim 1; a kind of multi-way intelligence control appliance of temperature and humidity is characterized in that, the upper end of sensor PN junction is connected with two leads; lead interts in the shielding line of two cores and to be covered with the stainless steel protection cover in its outside, and the epoxy encapsulation thing is equipped with in the centre of protective sleeve and PN junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01272002 CN2525476Y (en) | 2001-12-06 | 2001-12-06 | Multi-way intelligent temperature and humidity controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01272002 CN2525476Y (en) | 2001-12-06 | 2001-12-06 | Multi-way intelligent temperature and humidity controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525476Y true CN2525476Y (en) | 2002-12-11 |
Family
ID=33677274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01272002 Expired - Fee Related CN2525476Y (en) | 2001-12-06 | 2001-12-06 | Multi-way intelligent temperature and humidity controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525476Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674111A (en) * | 2013-11-28 | 2014-03-26 | 湖州埭溪振华工贸有限公司 | Factory environment intelligent detection system |
| CN108508941A (en) * | 2017-02-28 | 2018-09-07 | 铁木真电子科技（昆山）有限公司 | A kind of temperature and humidity controller based on LPC1768 |
-
2001
- 2001-12-06 CN CN 01272002 patent/CN2525476Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674111A (en) * | 2013-11-28 | 2014-03-26 | 湖州埭溪振华工贸有限公司 | Factory environment intelligent detection system |
| CN108508941A (en) * | 2017-02-28 | 2018-09-07 | 铁木真电子科技（昆山）有限公司 | A kind of temperature and humidity controller based on LPC1768 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |