CN103267592B - Temperature and humidity detection system of small grain bins - Google Patents
Temperature and humidity detection system of small grain bins Download PDFInfo
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- CN103267592B CN103267592B CN201310217836.2A CN201310217836A CN103267592B CN 103267592 B CN103267592 B CN 103267592B CN 201310217836 A CN201310217836 A CN 201310217836A CN 103267592 B CN103267592 B CN 103267592B
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Abstract
The invention relates to a temperature and humidity detection system of small grain bins. The temperature and humidity detecting system comprises a power supply, wherein the power supply is electrically connected with a humidity double-limit detection sound-light alarm circuit which is used for detecting the humidity and can give an alarm, and a temperature double-limit detection sound-light alarm circuit which is used for detecting the temperature and can give an alarm; the humidity double-limit detection sound-light alarm circuit comprises a humidity detection electrode; the humidity detection electrode is electrically connected with an upper limit humidity detection circuit and a lower limit humidity detection circuit; the output terminals of the upper limit humidity detection circuit and the lower limit humidity detection circuit are connected with the humidity sound-light alarm circuit; the temperature double-limit detection sound-light alarm circuit comprises a temperature sensor circuit; the input terminal of the temperature sensor circuit is respectively connected with an upper limit temperature setting circuit and a lower limit temperature setting circuit; and the output terminal of the temperature sensor circuit is connected with the temperature sound-light alarm circuit. The temperature and humidity detection system has a simple and compact structure, and is low in use cost, convenient to detect and operate, wide in application scope, safe and reliable.
Description
Technical field
The present invention relates to a kind of detection system, especially a kind of humiture detection system of Minitype granary, belongs to the technical field of grain depot temperature and humidity detection.
Background technology
China Shi Yige grain-production big country, grain quality safety is concerning the national national economic development and social stability, closely bound up with the people's livelihood.Yet mainly concentrate on to the output of grain rural area, peasant is difficult to guarantee that grain is fully dry when storing grain; And the retailer on He little fairground, rural area does not have a kind of inexpensive accurate instrument to judge grain drying degree when purchase grain yet.Cause the grain storage of high-moisture to be saved as urgent problem.Especially when plum rain season, the interior humidity of a silo more step worsens; If the temperature in silo is unsuitable, may cause grain to germinate, or embryo damage, can affect equally the quality of grain.
At present, China, for management and the monitoring of large-scale deposit silo, has realized the distributed control of centralizing and scattering system (DCS) of height networking and intelligent combination.Yet, at the small-sized transfer silo of vast rural area one-level, because of its small scale, relatively disperse, be not suitable for adopting expensive DCS system.The classic method that generally relies on simple instrument and artificial experience to detect for the water cut of Minitype granary cereal and storage temperature, does not only have good standard, more needs a large amount of manpowers and time, can not reach and detect at any time and the object of science detection; Traditional temperature detection just by rule of thumb, is not sought unity of standard yet, and there is no the testing tool of science yet.And now some high-tech detecting instruments because price is high, troublesome poeration, the shortcoming such as installation and maintenance are loaded down with trivial details is difficult to be accepted by peasant and pedlar, is not suitable for rural area and Minitype granary is widely used.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of humiture detection system of Minitype granary is provided, it is simple and compact for structure, and use cost is low, detect easy to operate, wide accommodation, safe and reliable.
According to technical scheme provided by the invention, the humiture detection system of described Minitype granary, comprises power supply; Described power supply is electrically connected to the two temperature pair limit detection sound light alarming circuits that detect sound light alarming circuits and also can report to the police for detection of temperature of limitting of the humidity that also can report to the police for detection of humidity; The two limits of described humidity detect sound light alarming circuit and comprise Humidity Detection electrode, described Humidity Detection electrode is electrically connected to upper limit humidity detection circuit and lower limit humidity measuring circuit, and the output terminal of the output terminal of described upper limit humidity measuring circuit and lower limit humidity measuring circuit is connected with humidity sound light alarming circuit; The two limits of temperature detect sound light alarming circuits and comprise temperature sensor circuit, and the input end of described temperature sensor circuit arranges circuit and lower limit temperature with ceiling temperature respectively and circuit is set is connected, and the output terminal of temperature sensor is connected with temperature sound light alarming circuit.
Described Humidity Detection electrode comprises the first electrode body and the second electrode body, one end that one end of described the first electrode body and upper limit humidity in upper limit humidity measuring circuit arrange potentiometer be connected and lower limit humidity measuring circuit in lower limit humidity one end that potentiometer is set connect, upper limit humidity arranges the other end of potentiometer and the other end that lower limit humidity arranges potentiometer is all connected with the first end of switch, the second end of switch is connected with the positive terminal of power supply, and the negative pole end of power supply is electrically connected to the second electrode body;
Upper limit humidity arranges the adjustable side of potentiometer and is connected with the input end of phase inverter in humidity sound light alarming circuit, described phase inverter is connected with the cathode terminal of upper limit humidity light emitting diode, the anode tap of upper limit humidity light emitting diode is connected with the base terminal of humidity driving transistors, the collector terminal of humidity driving transistors is connected with the first end of switch, the emitter of humidity driving transistors is connected with the negative pole end of power supply by audio driving circuit, audio driving circuit is connected with one end of loudspeaker, and the other end of loudspeaker is connected with the first end of switch;
Lower limit humidity arranges the adjustable side of potentiometer and is connected with the anode tap of lower limit light emitting diode in humidity sound light alarming circuit, and the cathode terminal of lower limit light emitting diode is connected with the base terminal of humidity driving transistors.
The two limits of described temperature detect the interior positive power source terminal of temperature sensor circuit of sound light alarming circuit and the first end of switch is connected, and the negative power end of temperature sensor is connected with the negative pole end of power supply; Ceiling temperature arranges circuit and comprises that ceiling temperature arranges potentiometer, the first end of potentiometer is set described ceiling temperature and the first end of switch is connected, the second end that ceiling temperature arranges potentiometer is connected with the input end of temperature sensor circuit, and the adjustable side that ceiling temperature arranges potentiometer is connected with the first end that described ceiling temperature arranges potentiometer;
Lower limit temperature arranges circuit and comprises that lower limit temperature arranges potentiometer, the first end of potentiometer is set described lower limit temperature and one end of switch is connected, the second end that lower limit temperature arranges potentiometer is connected with the input end of temperature sensor circuit, and the adjustable side that lower limit temperature arranges potentiometer is connected with the first end that described lower limit temperature arranges potentiometer;
The output terminal of temperature sensor circuit is connected with the base terminal of ceiling temperature driving transistors by the second upper limit resistance, the emitter of ceiling temperature driving transistors is connected with the negative pole end of power supply by electric capacity, the collector terminal of ceiling temperature driving transistors is connected with the cathode terminal of ceiling temperature light emitting diode, and the anode tap of ceiling temperature light emitting diode is connected with the first end of switch by the first upper limit resistance;
The output terminal of temperature sensor circuit is connected with the base terminal of lower limit temperature driving transistors by the second lower limit resistance, and the emitter of lower limit temperature driving transistors is connected with the cathode terminal of stabilivolt, and the anode tap of stabilivolt is connected with the negative pole end of power supply; The collector terminal of lower limit temperature driving transistors is connected with the cathode terminal of lower limit temperature light emitting diode, and the anode tap of lower limit temperature light emitting diode is connected with the first end of switch by the first lower limit resistance.
Described ceiling temperature driving transistors and lower limit temperature driving transistors are PNP transistor.
Advantage of the present invention: Humidity Detection electrode and temperature sensor are embedded in grain, by regulating upper limit humidity that the upper limit value and lower limit value that resistance value that potentiometer and lower limit humidity arranges potentiometer is set silo Humidity Detection is set, when the humidity in silo is greater than the higher limit of setting or is less than the lower limit of setting, upper limit humidity light emitting diode or lower limit humidity lumination of light emitting diode, loudspeaker carries out audible alarm under audio driving circuit drives simultaneously; By regulating ceiling temperature that the resistance value that potentiometer and lower limit temperature arrange potentiometer is set, set the upper limit value and lower limit value that grain temperature detects, when the temperature of silo is greater than the higher limit of setting or is less than the lower limit of setting, ceiling temperature light emitting diode, lower limit temperature light emitting diode carry out luminous alarm, simple and compact for structure, use cost is low, detect easy to operate, wide accommodation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Description of reference numerals: 1-the first electrode body, 2-humidity driving transistors, 3-audio driving circuit, 4-loudspeaker, 5-upper limit humidity arranges potentiometer, 6-upper limit humidity light emitting diode, 7-phase inverter, 8-lower limit humidity arranges potentiometer, 9-lower limit humidity light emitting diode, 10-switch, 11-power supply, 12-ceiling temperature arranges potentiometer, 13-lower limit temperature arranges potentiometer, 14-temperature sensor circuit, 15-ceiling temperature light emitting diode, 16-lower limit temperature light emitting diode, 17-stabilivolt, 18-electric capacity, 19-ceiling temperature driving transistors, 20-lower limit temperature driving transistors, 21-the second electrode body, 22-the first upper limit resistance, 23-the first lower limit resistance, 24-the second upper limit resistance, 25-the second lower limit resistance and 26-audio drive protective resistance.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: in order realizing quickly and easily, the humiture of silo to be detected, to the present invention includes power supply 11; Described power supply 11 is electrically connected to the two temperature pair limit detection sound light alarming circuits that detect sound light alarming circuits and also can report to the police for detection of temperature of limitting of the humidity that also can report to the police for detection of humidity; The two limits of described humidity detect sound light alarming circuit and comprise Humidity Detection electrode, described Humidity Detection electrode is electrically connected to upper limit humidity detection circuit and lower limit humidity measuring circuit, and the output terminal of the output terminal of described upper limit humidity measuring circuit and lower limit humidity measuring circuit is connected with humidity sound light alarming circuit; The two limits of temperature detect sound light alarming circuit and comprise temperature sensor circuit 14, the input end of described temperature sensor circuit 14 arranges circuit and lower limit temperature with ceiling temperature respectively and circuit is set is connected, and the output terminal of temperature sensor 14 is connected with temperature sound light alarming circuit.
Particularly, in the embodiment of the present invention, it is parallel with one another that the two limit detection sound light alarming circuits of humidity and the two limits of humidity detect sound light alarming circuit, and work does not interfere with each other, and can realize the detection of temperature and humidity simultaneously.Described Humidity Detection electrode comprises the first electrode body 1 and the second electrode body 21, one end that one end of described the first electrode body 1 and upper limit humidity in upper limit humidity measuring circuit arrange potentiometer 5 be connected and lower limit humidity measuring circuit in lower limit humidity one end that potentiometer 8 is set connect, upper limit humidity arranges the other end of potentiometer 5 and the other end that lower limit humidity arranges potentiometer 8 is all connected with the first end of switch 10, the second end of switch 10 is connected with the positive terminal of power supply 11, and the negative pole end of power supply 11 is electrically connected to the second electrode body 21;
Upper limit humidity arranges the adjustable side of potentiometer 5 and is connected with the input end of phase inverter 7 in humidity sound light alarming circuit, described phase inverter 7 is connected with the cathode terminal of upper limit humidity light emitting diode 6, the anode tap of upper limit humidity light emitting diode 6 is connected with the base terminal of humidity driving transistors 2, the collector terminal of humidity driving transistors 2 is connected with the first end of switch 10, the emitter of humidity driving transistors 2 is connected with the negative pole end of power supply 11 by audio driving circuit 3, audio driving circuit 3 is connected with one end of loudspeaker 4, the other end of loudspeaker 4 is connected with the first end of switch 10,
Lower limit humidity arranges the adjustable side of potentiometer 8 and is connected with the anode tap of lower limit light emitting diode 9 in humidity sound light alarming circuit, and the cathode terminal of lower limit light emitting diode 9 is connected with the base terminal of humidity driving transistors 2.Described humidity driving transistors 2 also adopts PNP pipe, is also parallel with audio holding circuit 26 on audio driving circuit 3, and humidity driving transistors 2 drives loudspeaker 4 by audio driving circuit 3, to carry out audible alarm by loudspeaker 4.In the embodiment of the present invention, described audio driving circuit 3 adopts the integrated circuit that model is SD5A150, and temperature sensor circuit 14 adopts the integrated circuit that model is TS-LM35.
The positive power source terminal that the two limits of described temperature detect temperature sensor circuit 14 in sound light alarming circuit is connected with the first end of switch 10, and the negative power end of temperature sensor 14 is connected with the negative pole end of power supply 11; Ceiling temperature arranges circuit and comprises that ceiling temperature arranges potentiometer 12, the first end that described ceiling temperature arranges potentiometer 12 is connected with the first end of switch 10, the second end that ceiling temperature arranges potentiometer 12 is connected with the input end of temperature sensor circuit 14, and the adjustable side that ceiling temperature arranges potentiometer 12 is connected with the first end that described ceiling temperature arranges potentiometer 12;
Lower limit temperature arranges circuit and comprises that lower limit temperature arranges potentiometer 13, the first end that described lower limit temperature arranges potentiometer 13 is connected with one end of switch 10, the second end that lower limit temperature arranges potentiometer 13 is connected with the input end of temperature sensor circuit 14, and the adjustable side that lower limit temperature arranges potentiometer 13 is connected with the first end that described lower limit temperature arranges potentiometer 13;
The output terminal of temperature sensor circuit 14 is connected with the base terminal of ceiling temperature driving transistors 19 by the second upper limit resistance 24, the emitter of ceiling temperature driving transistors 19 is connected with the negative pole end of power supply 11 by electric capacity 18, the collector terminal of ceiling temperature driving transistors 19 is connected with the cathode terminal of ceiling temperature light emitting diode 15, and the anode tap of ceiling temperature light emitting diode 15 is connected with the first end of switch 10 by the first upper limit resistance 22;
The output terminal of temperature sensor circuit 14 is connected with the base terminal of lower limit temperature driving transistors 20 by the second lower limit resistance 25, the emitter of lower limit temperature driving transistors 20 is connected with the cathode terminal of stabilivolt 17, and the anode tap of stabilivolt 17 is connected with the negative pole end of power supply 11; The collector terminal of lower limit temperature driving transistors 20 is connected with the cathode terminal of lower limit temperature light emitting diode 16, and the anode tap of lower limit temperature light emitting diode 16 is connected with the first end of switch 10 by the first lower limit resistance 23.Described ceiling temperature driving transistors 19 and lower limit temperature driving transistors 20 are PNP transistor.
During use, Humidity Detection electrode and temperature sensor 14 are embedded in grain, by regulating upper limit humidity that the upper limit value and lower limit value that resistance value that potentiometer 5 and lower limit humidity arranges potentiometer 8 is set silo Humidity Detection is set, when the humidity in silo is greater than the higher limit of setting or is less than the lower limit of setting, upper limit humidity light emitting diode 6 or lower limit humidity light emitting diode 9 are luminous, and loudspeaker 4 carries out audible alarm under audio driving circuit 3 drives simultaneously; By regulating ceiling temperature that the resistance value that potentiometer 12 and lower limit temperature arrange potentiometer 13 is set, set the upper limit value and lower limit value that grain temperature detects, when the temperature of silo is greater than the higher limit of setting or is less than the lower limit of setting, ceiling temperature light emitting diode 15, lower limit temperature light emitting diode 16 carry out luminous alarm, simple and compact for structure, use cost is low, detect easy to operate, wide accommodation, safe and reliable.
Claims (3)
1. a humiture detection system for Minitype granary, comprises power supply (11); It is characterized in that: described power supply (11) is electrically connected to the two temperature pair limit detection sound light alarming circuits that detect sound light alarming circuits and also can report to the police for detection of temperature of limitting of the humidity that also can report to the police for detection of humidity; The two limits of described humidity detect sound light alarming circuit and comprise Humidity Detection electrode, described Humidity Detection electrode is electrically connected to upper limit humidity measuring circuit and lower limit humidity measuring circuit, and the output terminal of the output terminal of described upper limit humidity measuring circuit and lower limit humidity measuring circuit is connected with humidity sound light alarming circuit; The two limits of temperature detect sound light alarming circuit and comprise temperature sensor circuit (14), the input end of described temperature sensor circuit (14) arranges circuit and lower limit temperature with ceiling temperature respectively and circuit is set is connected, and the output terminal of temperature sensor circuit (14) is connected with temperature sound light alarming circuit;
Described Humidity Detection electrode comprises the first electrode body (1) and the second electrode body (21), one end that one end of described the first electrode body (1) and upper limit humidity in upper limit humidity measuring circuit arrange potentiometer (5) be connected and lower limit humidity measuring circuit in lower limit humidity one end that potentiometer (8) is set connect, upper limit humidity arranges the other end of potentiometer (5) and the other end that lower limit humidity arranges potentiometer (8) is all connected with the first end of switch (10), the second end of switch (10) is connected with the positive terminal of power supply (11), the negative pole end of power supply (11) is electrically connected to the second electrode body (21),
Upper limit humidity arranges the adjustable side of potentiometer (5) and is connected with the input end of phase inverter (7) in humidity sound light alarming circuit, described phase inverter (7) is connected with the cathode terminal of upper limit humidity light emitting diode (6), the anode tap of upper limit humidity light emitting diode (6) is connected with the base terminal of humidity driving transistors (2), the collector terminal of humidity driving transistors (2) is connected with the first end of switch (10), the emitter of humidity driving transistors (2) is connected with the negative pole end of power supply (11) by audio driving circuit (3), audio driving circuit (3) is connected with one end of loudspeaker (4), the other end of loudspeaker (4) is connected with the first end of switch (10),
Lower limit humidity arranges the adjustable side of potentiometer (8) and is connected with the anode tap of lower limit light emitting diode (9) in humidity sound light alarming circuit, and the cathode terminal of lower limit light emitting diode (9) is connected with the base terminal of humidity driving transistors (2).
2. the humiture detection system of Minitype granary according to claim 1, it is characterized in that: the positive power source terminal that the two limits of described temperature detect temperature sensor circuit (14) in sound light alarming circuit is connected with the first end of switch (10), and the negative power end of temperature sensor circuit (14) is connected with the negative pole end of power supply (11); Ceiling temperature arranges circuit and comprises that ceiling temperature arranges potentiometer (12), the first end that described ceiling temperature arranges potentiometer (12) is connected with the first end of switch (10), the second end that ceiling temperature arranges potentiometer (12) is connected with the input end of temperature sensor circuit (14), and the adjustable side that ceiling temperature arranges potentiometer (12) is connected with the first end that described ceiling temperature arranges potentiometer (12);
Lower limit temperature arranges circuit and comprises that lower limit temperature arranges potentiometer (13), the first end that described lower limit temperature arranges potentiometer (13) is connected with one end of switch (10), the second end that lower limit temperature arranges potentiometer (13) is connected with the input end of temperature sensor circuit (14), and the adjustable side that lower limit temperature arranges potentiometer (13) is connected with the first end that described lower limit temperature arranges potentiometer (13);
The output terminal of temperature sensor circuit (14) is connected with the base terminal of ceiling temperature driving transistors (19) by the second upper limit resistance (24), the emitter of ceiling temperature driving transistors (19) is connected with the negative pole end of power supply (11) by electric capacity (18), the collector terminal of ceiling temperature driving transistors (19) is connected with the cathode terminal of ceiling temperature light emitting diode (15), and the anode tap of ceiling temperature light emitting diode (15) is connected with the first end of switch (10) by the first upper limit resistance (22);
The output terminal of temperature sensor circuit (14) is connected with the base terminal of lower limit temperature driving transistors (20) by the second lower limit resistance (25), the emitter of lower limit temperature driving transistors (20) is connected with the cathode terminal of stabilivolt (17), and the anode tap of stabilivolt (17) is connected with the negative pole end of power supply (11); The collector terminal of lower limit temperature driving transistors (20) is connected with the cathode terminal of lower limit temperature light emitting diode (16), and the anode tap of lower limit temperature light emitting diode (16) is connected with the first end of switch (10) by the first lower limit resistance (23).
3. the humiture detection system of Minitype granary according to claim 2, is characterized in that: described ceiling temperature driving transistors (19) and lower limit temperature driving transistors (20) are PNP transistor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310217836.2A CN103267592B (en) | 2013-06-03 | 2013-06-03 | Temperature and humidity detection system of small grain bins |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310217836.2A CN103267592B (en) | 2013-06-03 | 2013-06-03 | Temperature and humidity detection system of small grain bins |
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| CN103267592A CN103267592A (en) | 2013-08-28 |
| CN103267592B true CN103267592B (en) | 2014-11-26 |
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| CN201310217836.2A Expired - Fee Related CN103267592B (en) | 2013-06-03 | 2013-06-03 | Temperature and humidity detection system of small grain bins |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675035B (en) * | 2013-12-17 | 2015-09-16 | 杭州电子科技大学 | Dyeing and finishing drying room humidity measuring circuit |
| CN103869794A (en) * | 2014-03-31 | 2014-06-18 | 李松年 | Storehouse monitoring and early warning system |
| CN109462658B (en) * | 2018-12-10 | 2020-08-04 | 江苏科技大学 | Granary monitoring and management system and implementation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2123756U (en) * | 1992-03-29 | 1992-12-02 | 云南农业大学 | Temp-humidity measuring apparatus for flue-cured tobacco room |
| CN201107292Y (en) * | 2007-11-15 | 2008-08-27 | 高子泉 | Humidity detection alarming device |
| CN202675789U (en) * | 2012-06-28 | 2013-01-16 | 黄勇 | Temperature over-limit reminding device for refrigeration storage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1172392A (en) * | 1997-08-29 | 1999-03-16 | Toshiba Lighting & Technol Corp | Temperature detector and heating control system |
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- 2013-06-03 CN CN201310217836.2A patent/CN103267592B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2123756U (en) * | 1992-03-29 | 1992-12-02 | 云南农业大学 | Temp-humidity measuring apparatus for flue-cured tobacco room |
| CN201107292Y (en) * | 2007-11-15 | 2008-08-27 | 高子泉 | Humidity detection alarming device |
| CN202675789U (en) * | 2012-06-28 | 2013-01-16 | 黄勇 | Temperature over-limit reminding device for refrigeration storage |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-72392A 1999.03.16 * |
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