CN202710499U - Circuit for detecting bad smell in aquatic product feed - Google Patents
Circuit for detecting bad smell in aquatic product feed Download PDFInfo
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- CN202710499U CN202710499U CN 201220334349 CN201220334349U CN202710499U CN 202710499 U CN202710499 U CN 202710499U CN 201220334349 CN201220334349 CN 201220334349 CN 201220334349 U CN201220334349 U CN 201220334349U CN 202710499 U CN202710499 U CN 202710499U
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Abstract
The utility model relates to a circuit for detecting bad smell in an aquatic product feed and belongs to the technical field of aquaculture. The circuit comprises a gas sensitive sensor, a data collection circuit, an A\D (analogue/digital) conversion circuit, a gas sensitive sensor heating control circuit, a single chip, an alarm device and a control switch; P2.1 of the single chip is connected with IN1 of the gas sensitive sensor heating control circuit; the anode and the cathode of the gas sensitive sensor heating control circuit are connected with the third pin and the fifth pin of the gas sensitive sensor, and shortly connected with the first pin and the second pin of the gas sensitive sensor; the fourth pin and the sixth pin are shortly connected with IN5 and IN4 of an A\D conversion chip respectively; D0-D7 of the A\D conversion chip are connected with P0-P7 of the single chip; the alarm device is connected with P2.0 of the single chip, and the control switch is connected with P2.2 of the single chip. According to the circuit, the bad situation of the aquatic product feed can be detected in real time, and meanwhile, the circuit is compact in structure and simple in operation.
Description
Technical field
The utility model relates to a kind of aquatic products feed deterioration smell testing circuit, belongs to technical field of aquaculture.
Background technology
Along with improving constantly of people's living standard, people increase day by day to the demand of aquatic products, and the raising quantity of aquatic products is also increasing, and people often disposablely produce a lot of feeds for convenient in the aquaculture process, so that feed is not consumed timely, feed will go bad; If people do not find timely that again it is liable to illness that aquatic products have been eaten rotten feed, mostly prior art is to add the shelf-life that antiseptic comes food and extend in feed, still, concerning aquatic products, uses a large amount of antiseptics to bring very major injury to health; Prior art also has the method that adopts feed to detect, but equipment is complicated, operation inconvenience.
Summary of the invention
The utility model provides a kind of aquatic products feed deterioration smell testing circuit, by gas sensor perception olfactory signal, processes through single-chip microcomputer, sends cue by warning device, the rotten situation of Real-Time Monitoring aquatic products feed.
The technical solution adopted in the utility model is: circuit comprise gas sensor 1, data acquisition circuit and A D change-over circuit 2, gas sensor heating control circuit 3, single-chip microcomputer 4, warning device 5, gauge tap 6; The P2.1 of single-chip microcomputer 4 is connected with the IN1 of gas sensor heating control circuit 3; The both positive and negative polarity of gas sensor heating control circuit 3 is connected with 3,5 pins of gas sensor 1,1,2 pin short circuits of gas sensor 1,4,6 pin short circuits respectively with A IN5, the IN4 of D conversion chip be connected, A the D0～D7 of D conversion chip be connected with the P0～P7 of single-chip microcomputer 4, warning device 5 is connected with the P2.0 of single-chip microcomputer 4, and gauge tap 6 is connected with the P2.2 of single-chip microcomputer 4.
Described single-chip microcomputer can adopt AT89S52; Gas sensor is to adopt TGS825, TGS826; A the D conversion chip can adopt ADC0809, data acquisition circuit and A D change-over circuit 2, gas sensor heating control circuit 3 be that conventional circuit, warning device 5, gauge tap 6 can be selected common commercial elements.
The beneficial effects of the utility model:
1, can detect in real time the rotten situation of aquatic products feed;
2, compact conformation, simple to operate.
Description of drawings
Fig. 1 is structural representation block diagram of the present utility model;
Fig. 2 is sample circuit synoptic diagram of the present utility model;
Fig. 3 is gas sensor heating control circuit synoptic diagram of the present utility model.
Among the figure: the 1-gas sensor; 2-data sampling circuit and A the D change-over circuit; 3-gas sensor heating control circuit; 4-single-chip microcomputer and peripheral circuit; The 5-warning device; The 6-gauge tap.
Specific embodiments
Below in conjunction with accompanying drawing embodiment of the present invention is described further:
As shown in Figure 1: the utility model comprise gas sensor 1, data acquisition circuit and A D change-over circuit 2, gas sensor heating control circuit 3, single-chip microcomputer 4, warning device 5, gauge tap 6; The P2.1 of single-chip microcomputer 4 is connected with the IN1 of a gas sensor heating control circuit 3; The both positive and negative polarity of gas sensor heating control circuit 3 is connected with 3,5 pins of gas sensor 1,1,2 pin short circuits of gas sensor 1,4,6 pin short circuits respectively with A IN5, the IN4 of D conversion chip be connected, A the D0～D7 of D conversion chip be connected with the P0～P7 of single-chip microcomputer 4, warning device 5 is connected with the P2.0 of single-chip microcomputer 4, and gauge tap 6 is connected with the P2.2 of single-chip microcomputer 4.
Described single-chip microcomputer 4 can adopt AT89S52; Gas sensor is to adopt TGS825, TGS826; A the D conversion chip can adopt ADC0809, data acquisition circuit and A D change-over circuit 2, gas sensor heating control circuit 3 be that conventional circuit, warning device 5, gauge tap 6 can be selected common commercial elements.
As shown in Figure 2: sample circuit mainly partly is comprised of signal conditioning circuit, A/D change-over circuit etc., and the signal acquisition circuit of gas sensor 1 adopts the bleeder circuit of standard, and sampling resistor is got 1K Ω.The A/D conversion element is selected the ADC0809 chip, and it is a kind of 8 tunnel 8 successive approximation type A/D converters, is with 8 analog input channels, and channel address decoding latch is arranged in the sheet, and it is the pulse enable mode that ternary data latches, enabling signal are with in output.
Single-chip microcomputer 4 is by write information and data bus control ADC0809, and EOC signal (EOC) is incorporated into single-chip microcomputer external interrupt interface INT1, when the A/D EOC, trigger external interrupt, in interrupt routine, read the data-signal after the conversion and finish the transmission of data.Because EOC is that high level is effective, external interrupt is that low level or negative edge are effective, for making the comment coupling, uses phase inverter to carry out two kinds of level conversion between P3.3 at EOC.
As shown in Figure 3: gas sensor heating control circuit 3 is conventional circuit.
Principle of work of the present utility model: at first gas sensor 1 is placed in the aquatic products feed, utilize the smell information of 1 pair of aquatic products feed of highly sensitive gas sensor, amplify by the signal of amplifying circuit to gas sensor 1, there is being the A/D change-over circuit to carry out the digital-to-analog conversion of signal, processing by single-chip microcomputer 4, when gas sensor 1 detection signal surpasses desired value, warning device 5 is reported to the police, feed is rotten to be not suitable for eating, when the signal of gas sensor 1 does not surpass desired value, warning device 5 attonitys.Warning device 5 in experiment is novel is divided into audio alarm and pilot lamp is reported to the police.Audio alarm is that the signal that detects of gas sensor sends too sound when surpassing desired value and reports to the police, and does not sound when the signal that detects when gas sensor 1 surpasses desired value; Pilot lamp was lit and reports to the police when the signal that the pilot lamp warning detects for gas sensor surpassed desired value, did not move when the signal of gas sensor 1 detection surpasses desired value.
The utility model describes by specific implementation process, in the situation that does not break away from the utility model scope, can also carry out various conversion and be equal to replacement the utility model, therefore, the utility model is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall in the utility model claim scope.
Claims (2)
1. aquatic products feed deterioration smell testing circuit, it is characterized in that: circuit comprises gas sensor (1), data acquisition circuit and A D change-over circuit (2), gas sensor heating control circuit (3), single-chip microcomputer (4), warning device (5), gauge tap (6); The P2.1 of single-chip microcomputer (4) is connected with the IN1 of gas sensor heating control circuit (3); The both positive and negative polarity of gas sensor heating control circuit (3) is connected with 3,5 pins of gas sensor (1), 1,2 pin short circuits of gas sensor (1), 4,6 pin short circuits respectively with A IN5, the IN4 of D conversion chip be connected, A the D0～D7 of D conversion chip be connected with the P0～P7 of single-chip microcomputer (4), warning device (5) is connected with the P2.0 of single-chip microcomputer (4), and gauge tap (6) is connected with the P2.2 of single-chip microcomputer (4).
2. according to the described a kind of aquatic products feed deterioration smell testing circuit of claim, it is characterized in that: warning device (5) comprises audio alarm mode and pilot lamp type of alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334349 CN202710499U (en) | 2012-07-11 | 2012-07-11 | Circuit for detecting bad smell in aquatic product feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334349 CN202710499U (en) | 2012-07-11 | 2012-07-11 | Circuit for detecting bad smell in aquatic product feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710499U true CN202710499U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334349 Expired - Fee Related CN202710499U (en) | 2012-07-11 | 2012-07-11 | Circuit for detecting bad smell in aquatic product feed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202710499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018686A (en) * | 2016-05-06 | 2016-10-12 | 深圳市元征科技股份有限公司 | Urine and excrement detection device, method and system |
-
2012
- 2012-07-11 CN CN 201220334349 patent/CN202710499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018686A (en) * | 2016-05-06 | 2016-10-12 | 深圳市元征科技股份有限公司 | Urine and excrement detection device, method and system |
| CN106018686B (en) * | 2016-05-06 | 2019-01-15 | 深圳市元征科技股份有限公司 | A kind of stool and urine excreta detection device, method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUNNAN DONGDAO FEED CO., LTD. Free format text: FORMER OWNER: YUNNAN AGRICULTURAL UNIVERSITY Effective date: 20130401 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130401 Address after: 650000 in Yunnan Province in the eastern suburbs of Kunming Lu Temple No. 325 Patentee after: Yunnan Dongdao Feed Co., Ltd. Address before: 650000 Yunnan Province, Panlong District of Kunming city Black dragon Pool Yunnan Agricultural University Patentee before: Yunnan Agricultural University |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20170711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |