CN2593176Y - Hand-held measuring instrument for grain depot situation - Google Patents
Hand-held measuring instrument for grain depot situation Download PDFInfo
- Publication number
- CN2593176Y CN2593176Y CN 02279462 CN02279462U CN2593176Y CN 2593176 Y CN2593176 Y CN 2593176Y CN 02279462 CN02279462 CN 02279462 CN 02279462 U CN02279462 U CN 02279462U CN 2593176 Y CN2593176 Y CN 2593176Y
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- circuit
- grain
- test circuit
- utility
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Abstract
The utility model discloses a hand-held detecting instrument for grain situations of grain depots, which comprises a grab handle with operating press keys and a liquid display screen and a test circuit which is arranged in an inner cavity of the grab handle, wherein the test circuit is a sampling circuit and an A/D converting circuit which is electrically connected to the output end of the sampling circuit; the output end of the A/D converting circuit is connected to an input interface of a microprocessor, and the output port of the microprocessor is connected with a display circuit, and a power circuit which provides a power supply for the test circuit and is composed of a rechargeable battery and a power supply management module is arranged in the inner cavity of the grab handle. The utility model has the advantages that the test circuit which is used for detecting a grain depot is arranged in the grab handle with operation press keys and a liquid display screen, so the detection, the display, the storage and the print for the temperature data of deposited grains are realized without the measuring at every place or the record by hand, the labor intensity of detecting workers is reduced, and the utility model is favorable to realize the standardized management for the grain depot.
Description
Technical field:
The utility model relates to a kind of tester that is used for the grain storage storehouse, especially relates to a kind of manual testing device that is used for grain storage storehouse grain feelings.
Background technology:
Temperature test and control to grain storage are important indicators in the grain depot management, are preventing that grain storage from playing key effect in going mouldy, and the temperature measuring equipment of grain storage is an obligato indispensable instrument in the grain depot management.The temperature measuring equipment that is used for grain storage at present mainly contains thermometric bar, cable for measuring temperature etc.Thermometric bar cost is low, easy to maintenance, but the tester must advance in people's grain depot to measure, and can only pointwise detect manual record, and labour intensity is big, and efficient, measuring accuracy are lower, are unfavorable for standardized administration.Though and cable for measuring temperature need not the tester enters that grain depot detects but also can only pointwise detect manual record, exists labour intensity big equally, the deficiency of efficient.
The utility model content:
The purpose of the utility model provides a kind of manual testing device that is used for grain storage storehouse grain feelings with regard to being at above-mentioned existing in prior technology deficiency.
For achieving the above object, the utility model can be taked following technical proposals:
The utility model comprises the lever that has operation push-button, LCDs, signal sampling interface, is arranged on the test circuit of described lever inner chamber; Described test circuit is sample circuit and the A/D change-over circuit that is electrically connected with described sample circuit output terminal, and the output terminal of described A/D change-over circuit links to each other with the input interface of microprocessor, and the output port of described microprocessor is connected with a display circuit; Be provided with one at the lever inner chamber and provide the power circuit of forming by rechargeable battery and power management module of power supply to described test circuit.
For ease of the output and the storage of data, described lever is provided with signal output plug receptacle; Between described sample circuit and A/D change-over circuit, be provided with a signal amplification circuit.
Advantage of the present utility model is arranged on the described test circuit that is used for the grain feelings detection of grain storage storehouse in the lever that has operation push-button and LCDs with regard to being, thereby need not the point-to-point measurement hand-kept can realize detection, demonstration, storage, printing to the grain storage temperature data, not only reduced testing staff's labour intensity widely, improved testing efficient, while the utility model measuring accuracy height, easy to carry, be beneficial to the standardized management that realizes the grain storage storehouse.
Description of drawings:
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the theory diagram of Fig. 1.
Fig. 3 is stereoscopic figure of the present utility model.
Embodiment:
As shown in the figure, the utility model comprises the lever 3 that has operation push-button 1, LCDs 2, signal sampling interface, is arranged on the test circuit of described lever 3 inner chambers; Described test circuit is sample circuit and the A/D change-over circuit that is electrically connected with described sample circuit output terminal, and the output terminal of described A/D change-over circuit links to each other with the input interface of microprocessor, and the output port of described microprocessor is connected with a display circuit.For ease of linking to each other with printer, described lever 3 is provided with signal output plug receptacle, is provided with a signal amplification circuit between described sample circuit and A/D change-over circuit.For easy to use, be provided with one at described lever 3 inner chambers and provide the power circuit of forming by rechargeable battery and power management module of power supply to described test circuit.
LCDs 2 is selected the fluffy LCM021--04 LCDs far away of Tsing-Hua University for use; Described test circuit is made up of 10 high-precision a/d converters of TLC1549 serial and integrated circuit LM358; Microprocessor is selected AT89C52 high-performance single-chip microcomputer for use; Described signal amplification circuit is selected integrated circuit LM258 for use.
Circuit working principle of the present utility model:
As shown in Figure 1, P1, the P2 of single-chip microcomputer U1 (89C52) sends and selects the point for measuring temperature pulse, enter integrated circuit U5 (4053) buffering after, DOT, SUB from 3,5 pin to J3 send the selection point for measuring temperature.The grain temperature signal enters 2 pin that entered integrated circuit U6 (TLC1549) by 5 pin of integrated circuit U7 (LM258) after filtering, amplification again from 7 pin from the TX of J3, after carrying out analog/digital conversion, read in digital signal by single-chip microcomputer U1 (89C52) from 6 pin of integrated circuit U6 (TLC1549) again, in single-chip microcomputer U1 (89C52), carry out mean filter computing, scale transformation, be converted into Celsius temperature, deliver to again that LCDs (LCM021-04) shows and preserve by integrated circuit U2 (24C256).
Claims (3)
1, a kind of manual testing device that is used for grain storage storehouse grain feelings is characterized in that: it comprises the lever (3) that has operation push-button (1), LCDs (2), signal sampling interface, is arranged on the test circuit of described lever (3) inner chamber; Described test circuit is sample circuit and the A/D change-over circuit that is electrically connected with described sample circuit output terminal, and the output terminal of described A/D change-over circuit links to each other with the input interface of microprocessor, and the output port of described microprocessor is connected with a display circuit; Be provided with one at lever (3) inner chamber and provide the power circuit of forming by rechargeable battery and power management module of power supply to described test circuit.
2, according to the tester of claim 1, it is characterized in that: described lever (3) is provided with signal output plug receptacle.
3, according to the tester of claim 1, it is characterized in that: between described sample circuit and A/D change-over circuit, be provided with a signal amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279462 CN2593176Y (en) | 2002-09-30 | 2002-09-30 | Hand-held measuring instrument for grain depot situation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279462 CN2593176Y (en) | 2002-09-30 | 2002-09-30 | Hand-held measuring instrument for grain depot situation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593176Y true CN2593176Y (en) | 2003-12-17 |
Family
ID=33742529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279462 Expired - Fee Related CN2593176Y (en) | 2002-09-30 | 2002-09-30 | Hand-held measuring instrument for grain depot situation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593176Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357707C (en) * | 2006-02-20 | 2007-12-26 | 江苏东华测试技术有限公司 | Hand-held multifunctional instrument for testing, analyzing and recording dynamic signal |
| CN102426036A (en) * | 2011-12-19 | 2012-04-25 | 安徽省界首市云龙粮机配套工程有限公司 | Portable grain status detector |
-
2002
- 2002-09-30 CN CN 02279462 patent/CN2593176Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357707C (en) * | 2006-02-20 | 2007-12-26 | 江苏东华测试技术有限公司 | Hand-held multifunctional instrument for testing, analyzing and recording dynamic signal |
| CN102426036A (en) * | 2011-12-19 | 2012-04-25 | 安徽省界首市云龙粮机配套工程有限公司 | Portable grain status detector |
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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 |