CN204495765U - Fruit and vegetables corrosion protection pick-up unit - Google Patents
Fruit and vegetables corrosion protection pick-up unit Download PDFInfo
- Publication number
- CN204495765U CN204495765U CN201520130896.5U CN201520130896U CN204495765U CN 204495765 U CN204495765 U CN 204495765U CN 201520130896 U CN201520130896 U CN 201520130896U CN 204495765 U CN204495765 U CN 204495765U
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- China
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- inductance
- triode
- connects
- probe
- fruit
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Abstract
The utility model provides 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 comparer connects the first power supply and the first probe by the first resistance, the end of oppisite phase of comparer connects the second probe and by the second resistance eutral grounding, the output terminal of comparer connects the I/O input interface of single-chip microcomputer, the base stage of the I/O output interface connecting triode of single-chip microcomputer, the collector of triode connects the centre tap of inductance, the two ends hummer in parallel of inductance, inductance is away from described triode one termination second source.Building block of the present utility model is few, structure is simple, cost is low, is applicable to average family routine use, conveniently applies; 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.
Description
Technical field
The utility model belongs to technical field of food detection, particularly relates 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.
Utility model content
Problem to be solved in the utility model 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 adopted in the utility model:
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 utility model has and good effect are: building block of the present utility model 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 utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the utility model structural representation.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model 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 embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope 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 |
|---|---|---|---|
| CN201520130896.5U CN204495765U (en) | 2015-03-06 | 2015-03-06 | Fruit and vegetables corrosion protection pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130896.5U CN204495765U (en) | 2015-03-06 | 2015-03-06 | Fruit and vegetables corrosion protection pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495765U true CN204495765U (en) | 2015-07-22 |
Family
ID=53575070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520130896.5U Withdrawn - After Issue CN204495765U (en) | 2015-03-06 | 2015-03-06 | Fruit and vegetables corrosion protection pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204495765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713911A (en) * | 2015-03-06 | 2015-06-17 | 天津市傲绿农副产品集团股份有限公司 | Anticorrosive detection device for fruits and vegetables |
-
2015
- 2015-03-06 CN CN201520130896.5U patent/CN204495765U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713911A (en) * | 2015-03-06 | 2015-06-17 | 天津市傲绿农副产品集团股份有限公司 | Anticorrosive detection device for fruits and vegetables |
| CN104713911B (en) * | 2015-03-06 | 2017-11-28 | 天津市傲绿农副产品集团股份有限公司 | Fruit and vegetables corrosion protection detection means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20171128 |
|
| AV01 | Patent right actively abandoned |