CN104713911A - Anticorrosive detection device for fruits and vegetables - Google Patents
Anticorrosive detection device for fruits and vegetables Download PDFInfo
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- CN104713911A CN104713911A CN201510100524.2A CN201510100524A CN104713911A CN 104713911 A CN104713911 A CN 104713911A CN 201510100524 A CN201510100524 A CN 201510100524A CN 104713911 A CN104713911 A CN 104713911A
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- comparer
- probe
- triode
- chip microcomputer
- fruit
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Abstract
The invention provides an anticorrosive detection device for fruits and vegetables. The anticorrosive detection device comprises a comparer, a single-chip microcomputer, an audion, a buzzer and an inductor, wherein the in-phase end of the comparer is connected with a first power supply and a first probe through a first resistor; the out-phase end of the comparer is connected with a second probe and is grounded through a second resistor; the output end of the comparer is connected with an I/O input interface of the single-chip microcomputer; an I/O output interface of the single-chip microcomputer is connected with a base electrode of the audion; a collector electrode of the audion is connected with a center tap of the inductor; two ends of the inductor are in parallel connection with the buzzer; the end, far away from the audion, of the inductor is connected with a second power supply. The anticorrosive detection device is few in components, simple in structure and low in cost, thereby being suitable for daily use in ordinary households, and facilitating popularization and application; the sharing of the second power supply further simplifies the structure; the distance between the probes is constant to guarantee the accuracy of detection; a light-emitting diode improves the correcting function of the equipment, and false operations caused by the facts that components and parts are broken are prevented.
Description
Technical field
The invention belongs to technical field of food detection, particularly relate to a kind of fruit and vegetables corrosion protection pick-up unit.
Background technology
Along with the raising of socioeconomic development and people's living standard, people more and more pay close attention to self physical health issues, and the life of food quality and safety and people is closely bound up, therefore food-safety problem enjoys people to pay close attention to especially, especially summer, the fresh product corruption apt to deteriorate that people buy, and people are beyond recognition out sometimes, but when people have eaten rotten food, serious impact can be brought on health.
Existing fruit and vegetables corrosion protection pick-up unit circuit structure is complicated, and cost is high, is difficult to promote in average family, how to design the problem that a kind of structure is simple, cost is low fruit and vegetables corrosion protection pick-up unit becomes those skilled in the art's research.
Summary of the invention
The problem to be solved in the present invention is to provide the fruit and vegetables corrosion protection pick-up unit that a kind of structure is simple, cost is low.
For solving the problem, the technical solution used in the present invention:
A kind of fruit and vegetables corrosion protection pick-up unit, comprise comparer, single-chip microcomputer, triode, hummer and inductance, the in-phase end of described comparer connects the first power supply and the first probe by the first resistance, the end of oppisite phase of described comparer connects the second probe and by the second resistance eutral grounding, the output terminal of described comparer connects the I/O input interface of single-chip microcomputer, the base stage of the I/O output interface connecting triode of described single-chip microcomputer, the collector of described triode connects the centre tap of inductance, the two ends hummer in parallel of described inductance, described inductance is away from described triode one termination second source.
Described inductance and described one-chip machine common second source.
Distance between described first probe and the second probe is fixed.
Be serially connected with the 3rd resistance and light emitting diode between described transistor collector and described second source, and the negative pole of light emitting diode connects triode collector.
The advantage that the present invention has and good effect are: building block of the present invention is few, structure is simple, cost is low, are applicable to average family routine use, conveniently apply; Sharing of second source simplifies structure further; Probe distance fixedly guarantees the degree of accuracy detected; Light emitting diode enhances the error correction of equipment, prevents the misoperation because the reasons such as component damage cause.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 1, a kind of fruit and vegetables corrosion protection pick-up unit, comprise comparer, single-chip microcomputer, triode Q, hummer YD and inductance L, the in-phase end of described comparer connects the first power supply V1 and the first probe TD1 by the first resistance R1, the end of oppisite phase of described comparer connects the second probe TD2 and by the second resistance R2 ground connection, the output terminal of described comparer connects the I/O input interface PB1 of single-chip microcomputer, the base stage of the I/O output interface PD1 connecting triode Q of described single-chip microcomputer, the collector of described triode Q connects the centre tap of inductance L, the two ends hummer YD in parallel of described inductance L, described inductance L is away from described triode Q mono-termination second source VCC.
Further, in order to simplify structure further, described inductance L and described one-chip machine common second source VCC.
Further, in order to ensure the degree of accuracy detected, the distance between described first probe TD1 and the second probe TD2 is fixed.
Further, for preventing misoperation, increasing the error correction of equipment, between described triode Q collector and described second source VCC, being serially connected with the 3rd resistance R3 and light emitting diode D1, and the negative pole of light emitting diode D1 connects triode Q collector.
Principle of work:
After two probes insert food, in the resistance access above-mentioned detection device of food itself, because food therein resistance is relevant with the freshness of food, more the resistance of FF is larger, when the resistance of food itself is less than certain certain value, comparer output low level, the while that hummer YD reporting to the police, light emitting diode D1 lights, illustrate that food is rotten cannot eat, when the resistance of food itself is greater than certain definite value above-mentioned, comparer exports high level, and acoustical generator (hummer) then not sounding, illustrates that food is edible.For preventing because light emitting diode D1 or acoustical generator (hummer) one of them fault accurately can not remind people, want light emitting diode D1 and hummer YD action simultaneously, ability devices illustrated is normal, if there is one there is no action, then need to overhaul equipment, increase the reliability of equipment.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (5)
1. a fruit and vegetables corrosion protection pick-up unit, it is characterized in that: comprise comparer, single-chip microcomputer, triode, hummer and inductance, the in-phase end of described comparer connects the first power supply and the first probe by the first resistance, the end of oppisite phase of described comparer connects the second probe and by the second resistance eutral grounding, the output terminal of described comparer connects the I/O input interface of single-chip microcomputer, the base stage of the I/O output interface connecting triode of described single-chip microcomputer, the collector of described triode connects the centre tap of inductance, the two ends hummer in parallel of described inductance, described inductance is away from described triode one termination second source.
2. fruit and vegetables corrosion protection pick-up unit according to claim 1, is characterized in that: described inductance and described one-chip machine common second source.
3. fruit and vegetables corrosion protection pick-up unit according to claim 1 and 2, is characterized in that: the distance between described first probe and the second probe is fixed.
4. fruit and vegetables corrosion protection pick-up unit according to claim 1 and 2, is characterized in that: be serially connected with the 3rd resistance and light emitting diode between described transistor collector and described second source, and the negative pole of light emitting diode connects triode collector.
5. fruit and vegetables corrosion protection pick-up unit according to claim 3, is characterized in that: be serially connected with the 3rd resistance and light emitting diode between described transistor collector and described second source, and the negative pole of light emitting diode connects triode collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510100524.2A CN104713911B (en) | 2015-03-06 | 2015-03-06 | Fruit and vegetables corrosion protection detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510100524.2A CN104713911B (en) | 2015-03-06 | 2015-03-06 | Fruit and vegetables corrosion protection detection means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104713911A true CN104713911A (en) | 2015-06-17 |
| CN104713911B CN104713911B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510100524.2A Expired - Fee Related CN104713911B (en) | 2015-03-06 | 2015-03-06 | Fruit and vegetables corrosion protection detection means |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118650A (en) * | 1980-02-22 | 1981-09-17 | Ricoh Co Ltd | Automatic concentration recording and calculating apparatus |
| DE3201474A1 (en) * | 1982-01-19 | 1983-07-28 | Ludwig Bollmann Kg, 7703 Rielasingen | Method of measuring the moisture content of materials and device for this purpose |
| CN2844912Y (en) * | 2005-11-15 | 2006-12-06 | 沙兴峰 | Fruit maturity instrument |
| CN201181285Y (en) * | 2008-04-30 | 2009-01-14 | 镇江中煤电子有限公司 | Methane sensor signal output circuit |
| CN201926640U (en) * | 2010-12-17 | 2011-08-10 | 吴贵森 | Detection device for moisture content in building block |
| CN203965381U (en) * | 2014-07-29 | 2014-11-26 | 淮安信息职业技术学院 | A kind of portable vegetables and fruits residues of pesticides electronics fast detector |
| CN204495765U (en) * | 2015-03-06 | 2015-07-22 | 天津市傲绿农副产品集团股份有限公司 | Fruit and vegetables corrosion protection pick-up unit |
-
2015
- 2015-03-06 CN CN201510100524.2A patent/CN104713911B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118650A (en) * | 1980-02-22 | 1981-09-17 | Ricoh Co Ltd | Automatic concentration recording and calculating apparatus |
| DE3201474A1 (en) * | 1982-01-19 | 1983-07-28 | Ludwig Bollmann Kg, 7703 Rielasingen | Method of measuring the moisture content of materials and device for this purpose |
| CN2844912Y (en) * | 2005-11-15 | 2006-12-06 | 沙兴峰 | Fruit maturity instrument |
| CN201181285Y (en) * | 2008-04-30 | 2009-01-14 | 镇江中煤电子有限公司 | Methane sensor signal output circuit |
| CN201926640U (en) * | 2010-12-17 | 2011-08-10 | 吴贵森 | Detection device for moisture content in building block |
| CN203965381U (en) * | 2014-07-29 | 2014-11-26 | 淮安信息职业技术学院 | A kind of portable vegetables and fruits residues of pesticides electronics fast detector |
| CN204495765U (en) * | 2015-03-06 | 2015-07-22 | 天津市傲绿农副产品集团股份有限公司 | Fruit and vegetables corrosion protection pick-up unit |
Non-Patent Citations (2)
| Title |
|---|
| 宋文龙 等: "基于水果介电特性的无损伤成熟度检测仪的设计", 《农业工程学报》 * |
| 柯大观 等: "基于介电特性的水果无损检测系统研究", 《浙江工业大学学报》 * |
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|---|---|
| CN104713911B (en) | 2017-11-28 |
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Address after: No. 3499 Jinbei Highway, Dongli District, Tianjin 300300 Patentee after: Proud green group Limited by Share Ltd Address before: No. 3499 Jinbei Highway, Dongli District, Tianjin 300300 Patentee before: TIANJIN AOLV AGRICULTURAL & SIDELINE PRODUCTS GROUP CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20200306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |