CN203949857U - Hand-held colloidal gold strip card reader - Google Patents
Hand-held colloidal gold strip card reader Download PDFInfo
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- CN203949857U CN203949857U CN201420345797.4U CN201420345797U CN203949857U CN 203949857 U CN203949857 U CN 203949857U CN 201420345797 U CN201420345797 U CN 201420345797U CN 203949857 U CN203949857 U CN 203949857U
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- detecting device
- guide plate
- light guide
- card reader
- colloidal gold
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Abstract
The utility model discloses a kind of hand-held colloidal gold strip card reader, it comprises detecting device upper shell and detecting device lower house, wherein the front side of detecting device upper shell is provided with resistive touch LCDs, the side of detecting device lower house is provided with switch, power interface and charged state pilot lamp, detecting device lower house be provided with below test strips socket; The rear panel of detecting device upper shell and the top of light guide plate are provided with an ARM chip controls circuit board for cmos image acquisition process, a CMOS photoelectric sensor is arranged on ARM chip controls circuit board, and the center, conical duct of the center of CMOS photoelectric sensor and a light guide plate is on same vertical curve.The utility model is eliminated the impact of the unevenness of incident light in test strips on instrument, simplified control circuit simultaneously.
Description
Technical field
The utility model relates to a kind of card reader, particularly relates to a kind of hand-held colloidal gold strip card reader.
Background technology
Due to chemical pesticide, hormone, antibiotic abuse, a large amount of agricultural product and water quality are subject to pollution in various degree in recent years, and the food-safety problem bringing thus more and more receives publicity.Mostly the food safety detection of China is to be carried out by the relevant departments such as inspection and quarantine bureau, health and epidemic prevention at present, and the detection method of developing has mainly been developed by large-sized analytic instrument in laboratory.These methods are because used instrument is bulky, flexibility of operation is poor, and therefore layman is difficult to operation, cannot promote the use of in field quick detection.
Along with the large area of food-safety problem occurs, a kind of test strip that is suitable for fast detecting due to easy to use, cost is low, good selective is subject to common concern.In numerous test strips, test strips using nano colloid gold fast immune chromatographic test paper bar as representative is as the novel detection technique fast of one, carry the feature such as simple to operate, volume is little, cost is low, finding speed is fast and be widely used in food security field with it, and in fast detecting, playing a greater and greater role at the scene.But ELISA test strip mainly relies on range estimation at present, be the shade that detection line on test paper slip is observed in employment, only can do qualitative or semiquantitative judgement, cannot meet the requirement of quantitative detection, and human factor is larger on the judgement impact of testing result, is easy to cause false retrieval erroneous judgement.Be equipped with portable or microminiaturized instrument can overcome eye recognition drawback for the identification of ELISA test strip line color, the precision, sensitivity and the reliability that are conducive to realize identification, therefore developing corresponding detecting device for the test strips of particular type will be that test strips is analyzed important developing direction.
Around test strip detector, some related art scheme majorities that occur are at present based on light reflection principle, adopt photoelectrical coupler (CCD) or photodiode as photoelectric receiving device.Adopt CCD to be conducive to increase the sensing range of test strips, reduce test strips background interference problem, but supporting control system too complexity make complete machine cost high, this has offset the low advantage of ELISA test strip method cost to a great extent.And although photodiode has the advantages such as price is low, circuit control is simple with respect to CCD, from the excessive reliability that affects testing result of backscatter light of test strips itself.Adopt CMOS(Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor (CMOS)) type image photoelectric sensor is in reducing costs, effectively reduce the interference of test strips background, but in traditional design, affected the reliability of testing result because incident illumination is mapped to unevenness in test strips, supporting control circuit also needs further to be simplified simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of hand-held colloidal gold strip card reader, and it eliminates the impact of the unevenness of incident light in test strips on instrument, simplified control circuit simultaneously.
The utility model solves above-mentioned technical matters by following technical proposals: a kind of hand-held colloidal gold strip card reader, it is characterized in that, it comprises detecting device upper shell and detecting device lower house, wherein the front side of detecting device upper shell is provided with resistive touch LCDs, the side of detecting device lower house is provided with switch, power interface and charged state pilot lamp, detecting device lower house be provided with below test strips socket; The rear panel of detecting device upper shell and the top of light guide plate are provided with an ARM chip controls circuit board for cmos image acquisition process, a CMOS photoelectric sensor is arranged on ARM chip controls circuit board, and the center, conical duct of the center of CMOS photoelectric sensor and a light guide plate is on same vertical curve.
Preferably, on described detecting device lower house base, be provided with sense channel, test paper groove is set in sense channel, test paper groove is used for placing paper slip to be tested.
Preferably, described light guide plate is directly over test paper groove, and the center of light guide plate arranges a conical duct, and light guide plate symmetria bilateralis arranges two groups of LED light sources.
Preferably, the tapering in described conical duct is 45 degree.
Preferably, described LED light source is green LED light source.
Positive progressive effect of the present utility model is: the utility model uses transparent light guide plate as light channel, make the even vertical irradiation of incident light on the sample of test paper, eliminate the impact of bias light, eliminate the impact of the unevenness of incident light in test strips on instrument, farthest reduced the background interference of test strips.The utility model uses CMOS photoelectric sensor to replace CCD as photoelectric sensor, and simplified control circuit has reduced cost in reducing energy consumption.
Brief description of the drawings
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is the perspective view of the elements such as CMOS photoelectric sensor in the utility model, light guide plate, LED light source, ARM chip controls circuit board.
Fig. 3 is the perspective view of the element such as CMOS photoelectric sensor, light guide plate, LED light source in the utility model.
Fig. 4 is the structural representation of detecting device lower house in the utility model.
Fig. 5 is the structural representation of sense channel and test paper in the utility model.
Fig. 6 is the structural representation of conical duct and light guide plate in the utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Below in conjunction with accompanying drawing, the embodiment of a kind of hand-held colloidal gold strip of the utility model card reader is elaborated.
Shown in accompanying drawing 1 to Fig. 6, the utility model hand-held colloidal gold strip card reader comprises detecting device upper shell 102 and detecting device lower house 103, wherein the front side of detecting device upper shell 102 is provided with resistive touch LCDs 101, the side of detecting device lower house 103 is provided with switch 104, power interface 105 and charged state pilot lamp 106, detecting device lower house 103 be provided with below test strips socket 107.On detecting device lower house 103 bases, be provided with sense channel 109, test paper groove 110 is set in sense channel, test paper groove 110 is for placing paper slip 108 to be tested.Light guide plate 202 is set directly over test paper groove, light guide plate 202 center arranges a conical duct 211, light guide plate 202 symmetria bilateralis arrange two groups of LED light sources 203, every group of four LED light sources 203, and light guide plate 202 remainders are all with light tight gummed paper sealing shading.The top of the rear panel of detecting device upper shell 102 and light guide plate 202 is provided with an ARM chip controls circuit board 212 for cmos image acquisition process, CMOS photoelectric sensor 201 is arranged on ARM chip controls circuit board 212, and the center, conical duct of CMOS photoelectric sensor 201 center and light guide plate 202 is on same vertical curve.LED light source can be green LED light source.Power interface is connected with a power circuit, and power circuit adopts 3.7V lithium battery power supply, built-in charging circuit.Conical duct is for light focusing.CMOS photoelectric sensor be arranged at described conical duct directly over.
The course of work of the present utility model is as follows: open the utility model hand-held colloidal gold strip card reader, the main working interface of meeting display instrument in resistive touch LCDs 101.In test strips sample well, drip sample solution, test strips reacts with sample solution under 25 DEG C of constant temperatures, and after question response certain hour, the striped of certain color appears in meeting in ELISA test strip line and control line position.Test strips 108 is inserted in sense channel, opened green LED light source 203, enter and detect interface.Incident light transmits vertical irradiation behind ELISA test strip line region through light guide plate 202, the CMOS photoelectric sensor 201 being positioned at directly over the conical duct of light guide plate starts to gather colloidal gold strip image, judge colloidal gold strip detection line and control line position according to view data, ARM chip controls circuit board is processed taking gray-scale value as characteristic quantity the image of CMOS photoelectric sensor collection, finally calculate test strips sample solution concentration, in LCDs, demonstrate testing result, thereby complete one-shot measurement process.
The utility model need carry out blank calibration in the time measuring first, to eliminate test strips itself to the impact detecting, guarantees the accuracy of testing result.Specific operation process is, opens the utility model hand-held colloidal gold strip card reader, enters the main working interface of instrument.First enter blank Calibration interface, insert the blank test strips that does not drip any sample, by returning to main working interface after save button, complete blank calibration.
The luminous rear incident light of LED light source of the present utility model irradiates the sample in test strips after light channel, and described CMOS photoelectric sensor gathers test strips reflected image, reads ELISA test strip line position gray-scale value, and through respective handling, computing draws testing result.The utility model can adopt standard test strips at any time instrument to be calibrated, and guarantees the accuracy of testing result, exports quantitative testing result.Utilize this instrument, the pig urine that contains variable concentrations clenobuterol hydrochloride is detected, obtain the relation curve of concentration and instrument response signal, experimental result shows, the utility model uses simple, and energy consumption is low, and volume is little, easy to carry, detection speed is fast, Measurement sensibility, and precision is high.
Above-described specific embodiment; technical matters, technical scheme and beneficial effect to solution of the present utility model further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a hand-held colloidal gold strip card reader, it is characterized in that, it comprises detecting device upper shell and detecting device lower house, wherein the front side of detecting device upper shell is provided with resistive touch LCDs, the side of detecting device lower house is provided with switch, power interface and charged state pilot lamp, detecting device lower house be provided with below test strips socket; The rear panel of detecting device upper shell and the top of light guide plate are provided with an ARM chip controls circuit board for cmos image acquisition process, a CMOS photoelectric sensor is arranged on ARM chip controls circuit board, and the center, conical duct of the center of CMOS photoelectric sensor and a light guide plate is on same vertical curve.
2. hand-held colloidal gold strip card reader as claimed in claim 1, is characterized in that, on described detecting device lower house base, is provided with sense channel, and test paper groove is set in sense channel, and test paper groove is used for placing paper slip to be tested.
3. hand-held colloidal gold strip card reader as claimed in claim 2, is characterized in that, described light guide plate is directly over test paper groove, and the center of light guide plate arranges a conical duct, and light guide plate symmetria bilateralis arranges two groups of LED light sources.
4. hand-held colloidal gold strip card reader as claimed in claim 3, is characterized in that, the tapering in described conical duct is 45 degree.
5. hand-held colloidal gold strip card reader as claimed in claim 3, is characterized in that, described LED light source is green LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345797.4U CN203949857U (en) | 2014-06-26 | 2014-06-26 | Hand-held colloidal gold strip card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345797.4U CN203949857U (en) | 2014-06-26 | 2014-06-26 | Hand-held colloidal gold strip card reader |
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| Publication Number | Publication Date |
|---|---|
| CN203949857U true CN203949857U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345797.4U Expired - Fee Related CN203949857U (en) | 2014-06-26 | 2014-06-26 | Hand-held colloidal gold strip card reader |
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| CN (1) | CN203949857U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807822A (en) * | 2015-04-23 | 2015-07-29 | 广州博厚医疗技术有限公司 | Handheld analyzer and detection method |
| CN105203765A (en) * | 2015-08-26 | 2015-12-30 | 成都安普诺生物科技有限公司 | Heavy metal quantitative detecting system and method for quantitatively detecting heavy metal |
| CN105467125A (en) * | 2016-01-19 | 2016-04-06 | 苏州思源通科技有限公司 | Glucose meter with LED lighting |
| CN106645680A (en) * | 2017-01-21 | 2017-05-10 | 上海源紊新能源科技有限公司 | Colloidal gold card reader for detecting mycotoxins in livestock farms |
| CN106959288A (en) * | 2016-01-12 | 2017-07-18 | 李明叡 | Biochemistry detection equipment |
| CN107941771A (en) * | 2017-12-13 | 2018-04-20 | 西安交通大学 | A kind of modularization up-conversion fluorescence chromatographic test paper excitation apparatus |
| CN108132346A (en) * | 2017-12-30 | 2018-06-08 | 天津博硕东创科技发展有限公司 | A kind of Portable fluorescence immunity analysis instrument |
| CN108444968A (en) * | 2018-06-05 | 2018-08-24 | 北京勤邦生物技术有限公司 | A kind of fluorescent test paper bar detection device |
| CN113156109A (en) * | 2021-03-16 | 2021-07-23 | 广州埃克森生物科技有限公司 | Multifunctional immune quantitative analyzer and implementation method thereof |
| WO2022036627A1 (en) * | 2020-08-20 | 2022-02-24 | 柯正浩 | Screening test paper reading system |
| CN114397436A (en) * | 2022-02-16 | 2022-04-26 | 重庆江渝开物工业设计有限公司 | Diabetes short-term test dodging device |
-
2014
- 2014-06-26 CN CN201420345797.4U patent/CN203949857U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807822A (en) * | 2015-04-23 | 2015-07-29 | 广州博厚医疗技术有限公司 | Handheld analyzer and detection method |
| CN104807822B (en) * | 2015-04-23 | 2017-12-15 | 广州博厚医疗技术有限公司 | Handheld analysis and detection method |
| CN105203765A (en) * | 2015-08-26 | 2015-12-30 | 成都安普诺生物科技有限公司 | Heavy metal quantitative detecting system and method for quantitatively detecting heavy metal |
| CN106959288A (en) * | 2016-01-12 | 2017-07-18 | 李明叡 | Biochemistry detection equipment |
| CN105467125A (en) * | 2016-01-19 | 2016-04-06 | 苏州思源通科技有限公司 | Glucose meter with LED lighting |
| CN106645680A (en) * | 2017-01-21 | 2017-05-10 | 上海源紊新能源科技有限公司 | Colloidal gold card reader for detecting mycotoxins in livestock farms |
| CN107941771A (en) * | 2017-12-13 | 2018-04-20 | 西安交通大学 | A kind of modularization up-conversion fluorescence chromatographic test paper excitation apparatus |
| CN108132346A (en) * | 2017-12-30 | 2018-06-08 | 天津博硕东创科技发展有限公司 | A kind of Portable fluorescence immunity analysis instrument |
| CN108444968A (en) * | 2018-06-05 | 2018-08-24 | 北京勤邦生物技术有限公司 | A kind of fluorescent test paper bar detection device |
| WO2022036627A1 (en) * | 2020-08-20 | 2022-02-24 | 柯正浩 | Screening test paper reading system |
| CN113156109A (en) * | 2021-03-16 | 2021-07-23 | 广州埃克森生物科技有限公司 | Multifunctional immune quantitative analyzer and implementation method thereof |
| CN114397436A (en) * | 2022-02-16 | 2022-04-26 | 重庆江渝开物工业设计有限公司 | Diabetes short-term test dodging device |
| CN114397436B (en) * | 2022-02-16 | 2024-05-28 | 重庆江渝开物工业设计有限公司 | Diabetes short-term test even light device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |