CN202256140U - Multispectral water quality analyzer - Google Patents

Multispectral water quality analyzer Download PDF

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Publication number
CN202256140U
CN202256140U CN2011203518809U CN201120351880U CN202256140U CN 202256140 U CN202256140 U CN 202256140U CN 2011203518809 U CN2011203518809 U CN 2011203518809U CN 201120351880 U CN201120351880 U CN 201120351880U CN 202256140 U CN202256140 U CN 202256140U
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China
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module
water
color sensor
water quality
multispectral
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Expired - Fee Related
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CN2011203518809U
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Chinese (zh)
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赵丽清
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Qingdao Agricultural University
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Qingdao Agricultural University
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Abstract

The utility model relates to a multispectral water quality analyzer, which comprises a water quality detecting part, a water quality analyzing part and a power supply module. The water quality detecting part comprises a camera obscura, a light source generating device, a container for containing liquid to be detected and a color sensor, wherein the light source generating device, the container for containing the liquid to be detected and the color sensor are located in the camera obscura. The light source generating device emits white light to irradiate through the liquid to be detected, and the color of the liquid is cast onto the color sensor. The water quality analyzing part comprises a central processing unit module, a liquid crystal display module, a clock module, a handheld key module and a memory module, wherein the liquid crystal display module, the clock module, the handheld key module and the memory module are connected with the central processing unit module. The central processing unit module is connected with the color sensor, receives chromatographic values detected by the color sensor, contrasts the chromatographic values with data in an experiment data base and displays results on a liquid crystal display screen. The light source generating device irradiates the liquid through white light and casts the color of the liquid onto the color sensor. The water quality analyzing part acquires and processes the data, converts the data into water quality parameters and judges compound content in a reagent by detecting reflected chromatographic values. The multispectral water quality analyzer is small in occupied space, few in instruments, good in tested anti-interference capability, low in cost and high in measuring accuracy of a tester.

Description

The multispectral water-quality analyser
Technical field
The utility model relates to a kind of multispectral novel water quality analysis meter, particularly a kind of multispectral novel water quality analysis meter based on MSP430.
Background technology
At present, the detection mode of chemical analysis and range estimation is adopted in the water quality detection of aquaculture industry mostly, complex operation, and measuring accuracy is low, measures singlely, and portable performance is relatively poor, and chemical reagent causes secondary pollution easily.The water quality detection work of traditional aquaculture is main with artificial spot sampling, Laboratory Instruments analysis mainly.Though analysis means is complete in the laboratory, the laboratory detect to exist that the monitoring frequency is low, sampling error big, Monitoring Data is disperseed, can not in time reflect defectives such as polluting changing condition, is difficult to satisfy government and carries out the demand that effective water environment is managed with enterprise.
The water body compound analysis appearance that the aquaculture large-scale popularization is used seldom.External product in the market occupies certain share, but owing to cost an arm and a leg, the user also only rests on national enterprises and institutions such as scientific research department; Vast raiser is unable to reach; But this water body compound analysis appearance can be implemented to outdoor scene and test, the function that it is easy and simple to handle, efficient, amount of samples reaches disposable analysis water sample in enormous quantities less, and the user of convenient more aquacultures receives and passes through to increase the use of this quasi-instrument; Scientific culture improves and cultures factory's economic benefit.
Though some single or analytical instrument of water qualities of multiparameter occur in the present disclosed patent now, even the surveying instrument of multiparameter does not have the single-minded detection ammonia nitrogen and the water quality detection equipment of content of nitrite yet.
The utility model content
The purpose of the utility model is to provide a kind of Portable, multiple parameter Water Test Kits.It has at first designed one can be with a miniature water body compound sample color harvester of white light source, water sample to be measured, color sensor science, rational deployment, like accompanying drawing 3.Designed hardware circuit and software systems then, realized the intelligentized water analysis of aquaculture water quality, detection based on the MSP430 single-chip microcomputer.It does not have professional requirement to the user, and anyone only needs to read simple explanation book and can use, and weight has only about 600 grams, and is easy to carry.Its measuring accuracy is identical with the spectrophotometer that needs the professional to use in laboratory operation.
The technical scheme of the utility model is: a kind of multispectral water-quality analyser; Water analysis part and power module that described multispectral water-quality analyser comprises water quality detection part, partly joins with water quality detection; Described water quality detection partly comprises camera bellows; The light source generating means, the testing liquid that are positioned at camera bellows take up container and color sensor, and the light source generating means sends white light and shone testing liquid, and the color of liquid is thrown on the color sensor; Described water analysis partly comprises CPU module; The LCD MODULE that joins with it, clock module, hand-held key-press module and memory module; CPU module and color sensor join; Receive the chromatogram value that color sensor detects, and contrast, the result is presented on the liquid crystal display with the experimental data database data.
Preferably: described central processing module is the MSP430 processor of single chip computer.
Preferably: described color sensor is the rgb color sensor.
Preferably: described liquid crystal indicator is the Chinese character image liquid crystal display of 128 * 64 dot matrix.
Preferably: described hand-held key-press module adopts the point contact type button, comprises five buttons: upwards, downwards, retreat, confirm, store.
Preferably: described clock module adopts DS1320 as clock circuit.
Preferably: described memory module is a SD card memory module.
Preferably: described power module adopts lithium battery switching AMS117 series voltage stabilizer as power supply.
Preferably: described power module is equipped with charging device.
The beneficial effect of the utility model is: at first studied a cover and measured equipment based on the brand-new water body compound of spectral theory and color sensor.The light source generating means of the water quality detection of the utility model part shone liquid through white light, the color of liquid was thrown on the color sensor the partly collection through data and to the processing of data of water analysis; Be translated into the parameter of water quality, through the content value of compound in the chromatogram value judgement reagent in detection of reflected past, not only equipment occupation space is little; Instrument is few; The mensuration antijamming capability is good, and cost is lower, and the analyzer measuring accuracy is higher.The MSP430F2618 processor of single chip computer can be handled the information of gathering, and comprises the operational process of entire circuit, color data read the demonstration of liquid crystal, the response of button etc.Used integrated circuit technique, the structural behaviour of this circuit is optimized, structure is simplified more, performance is more superior.Adopt the Chinese character image liquid crystal of 128 * 64 dot matrix, can grasp the associated process information of doing by display keyboard, realized the exchange of people's machine information preferably.Adopt the SD card to store the relevant information of test water quality parameter, realized the collection at any time and the storage of data.Power module adopts lithium battery switching AMS1117 series voltage stabilizer as power supply, and structure is simplified more, has improved portable performance.Be equipped with charging device in addition, can have realized repeatedly using, comparatively convenient.
Description of drawings
Fig. 1 is the utility model structured flowchart
Fig. 2 is the utility model C Programming with Pascal Language process flow diagram
Fig. 3 is the outside drawing of the utility model
Embodiment
Embodiment below in conjunction with description of drawings the utility model:
A kind of multispectral water-quality analyser; Water analysis part and power module that described multispectral water-quality analyser comprises water quality detection part, partly joins with water quality detection; Described water quality detection partly comprises camera bellows; The light source generating means, the testing liquid that are positioned at camera bellows take up container and color sensor, and the light source generating means sends white light and shone testing liquid, and the color of liquid is thrown on the color sensor; Described water analysis partly comprises CPU module; The LCD MODULE that joins with it, clock module, hand-held key-press module and memory module; CPU module and color sensor join; Receive the chromatogram value that color sensor detects, and contrast, the result is presented on the liquid crystal display with the experimental data database data.
Described central processing module is the MSP430F2618 processor of single chip computer, has peripheral hardware in high cost performance, the abundant sheet.The user can pre-set passage order and parameter, and indicates the end position of sequence with sequence flag, and this structure can reduce the cost of controlling of sampling software greatly.
Described color sensor is the rgb color sensor, and this kind of sensor colorama able to programme is to the converter of frequency.It is integrated in configurable silicon photoelectric diode and current frequency converter on the single cmos circuit, simultaneously integrated three kinds of light filters of RGB (RGB) on one chip.The output signal is a digital quantity, can drive the TTL or the input of CMOS logic of standard, therefore can directly be connected with microprocessor or other logical circuits.Because output is digital quantity, and can realize the conversion accuracy of each chrominance channel more than 10, thereby no longer needs the A/D change-over circuit, makes circuit become simpler.
Described liquid crystal indicator is the Chinese character image liquid crystal display of 128 * 64 dot matrix.This module is used for showing that the information via central authorities control chip processing of sensor acquisition is converted into the parameter of water quality afterwards.And can grasp the associated process information of doing by display keyboard, realized the exchange of people's machine information preferably.
Described hand-held key-press module adopts the point contact type button, comprises five buttons: upwards, downwards, retreat, confirm, store.It is comparatively convenient to use, and is convenient to user's operation.
Described clock module adopts DS1320 as clock circuit.Adopt serial and can turn-off data transmission; Can be the power down protection power supply programmable charge function is provided; And can the charge closing function, the wide 2.5-5.5V that reaches of WV adopts three-wire interface and CPU synchronous communication; And can adopt burst mode once to transmit the clock signal or the RAM data of a plurality of bytes, adopt common 32768Khz crystal oscillator.Time is kept among the RAM that DS1302 carries, and does not need independent EEPROM.
Described memory module is a SD card memory module.This module is used for storing the relevant information of test water quality parameter, has realized the collection at any time and the storage of data.
Described power module adopts lithium battery switching AMS117 series voltage stabilizer as power supply.Structure is simplified more, improved portable performance, and because low-power consumption can realize outdoor detection at any time.Be equipped with charging device in addition, can have realized repeatedly using, comparatively convenient.
As shown in Figure 2, the workflow of the utility model is following: at first carry out the initialization of system, with System self-test, carry out the liquid crystal display initialization this moment, operation push-button then, and button is worked with the singlechip interruption pattern.When transferring to the measurement interface, color sensor is gathered data, color data clock data reading of data.Through the inter-process of MSP430 processor of single chip computer,, the result with after water quality parameter is corresponding, is presented on the liquid crystal display with reference to experimental data base to image data.When measuring, system recovery arrives original state, and then repeats next time.
As shown in Figure 1, the principle of work of the utility model is following: shone liquid through white light, the color of liquid is thrown on the color sensor, the chromatogram value in detection of reflected past is judged the content value of compound in the reagent.RGB color parameter through the compound after the RGB color sensor identification allotment; Through the inter-process of MSP430 processor of single chip computer to image data; With reference to experimental data base; The result with after water quality parameter is corresponding, is presented on the liquid crystal display, finally realizes the measurement of the content of compound in the water body.
As shown in Figure 3; The outside drawing of the utility model: left-half is the color sensor part on this profile, is the cylinder barrel assembling structure, and the cuvette of testing liquid is equipped with in inside; Last right half part mainly is a LCD Panel; The latter half is a portion of the handle, and portion of the handle has five buttons, is five buttons in the key-press module.
The advantage of the utility model is: need not training, Anywhere, any place can easily be measured; The Chinese liquid crystal display; Do not need other equipment, convenient succinct; Quick and precisely, measurement structure is reliable; Volume is little, and is in light weight, easy to carry; Testing cost is low.
The scope of application of the utility model: aquaculture (batch production and chemurgy aquaculture) water body detects; Instrument and equipment is used in the laboratory; The wastewater treatment water quality detection; The industrial or agricultural plumbing detects; Domestic water detects.
Experiment showed, to the utlity model has innovative technology that this instrument can be accomplished the detecting instrument that the water sample compound determination shows, stores overall process automatically.This novel water quality analysis meter is simple in structure, and error is little, measures accurately.Make things convenient for the user of aquaculture to use, let the user accomplish scientific culture, improve and culture factory's economic benefit.

Claims (9)

1. multispectral water-quality analyser; It is characterized in that: water analysis part and power module that described multispectral water-quality analyser comprises water quality detection part, partly joins with water quality detection; Described water quality detection partly comprises camera bellows; The light source generating means, the testing liquid that are positioned at camera bellows take up container and color sensor, and the light source generating means sends white light and shone testing liquid, and the color of liquid is thrown on the color sensor; Described water analysis partly comprises CPU module; The LCD MODULE that joins with it, clock module, hand-held key-press module and memory module; CPU module and color sensor join; Receive the chromatogram value that color sensor detects, and contrast, the result is presented on the liquid crystal display with the experimental data database data.
2. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described central processing module is the MSP430 processor of single chip computer.
3. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described color sensor is the rgb color sensor.
4. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described liquid crystal indicator is the Chinese character image liquid crystal display of 128 * 64 dot matrix.
5. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described hand-held key-press module adopts the point contact type button, comprises five buttons: upwards, downwards, retreat, confirm, store.
6. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described clock module adopts DS1320 as clock circuit.
7. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described memory module is a SD card memory module.
8. multispectral water-quality analyser as claimed in claim 1 is characterized in that: described power module adopts lithium battery switching AMS117 series voltage stabilizer as power supply.
9. multispectral water-quality analyser as claimed in claim 8 is characterized in that: described power module is equipped with charging device.
CN2011203518809U 2011-09-20 2011-09-20 Multispectral water quality analyzer Expired - Fee Related CN202256140U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102435555A (en) * 2011-09-20 2012-05-02 青岛农业大学 Multispectral water quality analyzer
CN103698488A (en) * 2013-12-20 2014-04-02 苏州市职业大学 Portable solar-powered water quality detector
CN104142306A (en) * 2013-05-08 2014-11-12 中国科学院烟台海岸带研究所 Pure digital photoelectric detection system and test method
CN105388116A (en) * 2015-12-22 2016-03-09 钦州学院 Water color recognition device
CN104297178B (en) * 2014-09-29 2016-08-24 力合科技(湖南)股份有限公司 Detect device and there is the water quality on-line detecting system of this detection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102435555A (en) * 2011-09-20 2012-05-02 青岛农业大学 Multispectral water quality analyzer
CN104142306A (en) * 2013-05-08 2014-11-12 中国科学院烟台海岸带研究所 Pure digital photoelectric detection system and test method
CN103698488A (en) * 2013-12-20 2014-04-02 苏州市职业大学 Portable solar-powered water quality detector
CN104297178B (en) * 2014-09-29 2016-08-24 力合科技(湖南)股份有限公司 Detect device and there is the water quality on-line detecting system of this detection device
CN105388116A (en) * 2015-12-22 2016-03-09 钦州学院 Water color recognition device

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C17 Cessation of patent right
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Granted publication date: 20120530

Termination date: 20120920