CN105699616A - Multi-parameter water quality detecting and rating system and water quality rating method based on same - Google Patents
Multi-parameter water quality detecting and rating system and water quality rating method based on same Download PDFInfo
- Publication number
- CN105699616A CN105699616A CN201610128986.XA CN201610128986A CN105699616A CN 105699616 A CN105699616 A CN 105699616A CN 201610128986 A CN201610128986 A CN 201610128986A CN 105699616 A CN105699616 A CN 105699616A
- Authority
- CN
- China
- Prior art keywords
- solution
- value
- default
- turbidity
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a multi-parameter water quality detecting and rating system and a water quality rating method based on the same. The system comprises a data analysis module and a plurality of data acquisition modules, wherein each data acquisition module comprises an acquisition control unit, a solution temperature measurement unit, a solution PH measurement unit, a solution turbidity measurement unit, a solution conductivity measurement unit, a power supply unit and a first communication unit; the data analysis module comprises a data analysis control unit, a second communication unit, a display unit and a storage unit; each acquisition control unit is used for sending acquired solution temperature, PH, turbidity and conductivity to the second communication unit through the first communication unit; the data analysis unit is used for storing the solution temperature, the PH, the turbidity and the conductivity received by the second communication unit in the storage unit, analyzing the water quality level of a solution and controlling the display unit to display the solution temperature, the PH, the turbidity, the conductivity and the water quality level. The multi-parameter water quality detecting and rating system and the water quality rating method based on the same are low-cost and multi-parameter, and the cost performance is high.
Description
Technical field
The present invention relates to fields of measurement, particularly relate to a kind of multi-parameter water quality detection and rating system and water quality ranking method thereof。
Background technology
The research starting of external water quality detection instrument relatively early, is mainly used in field of Environment Protection at first, has played important effect in Practical Project and management, have received huge benefit。At 20 century 70s, oneself has Portable water-quality analysis instrument to sell in the state such as American-European and Japanese, but broadly falls into instantaneous measurement instrument, and continuous multiparameter water quality analyzer began to use the eighties in 20th century。In the last few years along with the fast development of electronics industry, occurring in that large quantities of multi-parameter water quality detecting instrument, detector detectable parameter is also being on the increase。
Elemtron company of Poland devises the water proof type multi-parameter water quality detector CX-401 that can connect computer or printer, can simultaneously pH value determination, electrical conductivity, these parameters of dissolved oxygen。This apparatus measures is easy, indoor or work out of doors for a long time, can detect parameter relatively fewer。
Germany is proposed the online multi-parameter water-quality test system that model is IQSensorNet in recent years, and this cover system can test the parameters such as PH, temperature, dissolved oxygen, conductance, turbidity, total suspended solid concentration, ammonia nitrogen, nitrate anion (N03), COD (COD), total carbon (TOC), Biochemical oxygen demand (BOD)。But this instrument system is very big, it is not easy to outdoor Site Detection。
Compared with abroad, the research of China's Water quality detected instrument aspect and production are started late, to the end of the eighties, the technology path of the Water quality detected of China is main still based on hand sampling test in laboratory, the instrument formed also is mainly laboratory analytical instrument and part semi-automated analysis instrument, just progressively starts to move towards the semi-automatic off-line system stage from hand sampling, lab analysis stage after the mid-90。So far, domestic manufacturer's research and produce Water Test Kits in the majority of single or less parameters, China's domestic water quality detection develops quickly in recent years, produces many water quality detection products, but it cuts both ways。
Central China University of Science and Technology's green technology institute Recent study have developed the MPT-201 type Portable, multiple parameter Water Test Kits based on photoelectro-colorimetric analysis principle, and this instrument can detect COD, turbidity, can survey parameter few。
Industrial type micro-computer type acid-base value (pH)/dissolved oxygen/temperature controller that model is 6309PDT is designed in Shanghai。Can measure simultaneously and control acid-base value, dissolved oxygen and temperature。Its temperature, pH value measurement wider range, pH value is-2.00 ~ 16.00, but can not detect COD and turbidity simultaneously。
The 5B-3B type COD multi-parameter that Beijing company produces, can measure COD, ammonia nitrogen, total phosphorus, turbidity, and its measurement range is 2 ~ 5000mg/L, but can not detect pH value, temperature etc. simultaneously。
The SWA-2000 Portable water quality monitoring system that Zhejiang produces can realize the COD concentration in continuous on-line monitoring water body, pH value, electrical conductivity, turbidity etc., and the data measured effectively are managed。But this detection system is easily subject to the impact of ambient temperature。
External detection equipment General System is huge, on the high side, and domestic on-line monitoring analysis meter variety protection is single, is subject to ambient temperature impact。The common issue of current all water quality testing meters is that the level of informatization is not high, combination rare with the Internet。We are combined with Internet technology by works main advantage。
Most quality evaluation methods are all 1 according to water quality measurement project at present, independent formulation water quality assessment standard, lack a kind of item number variable, measure the item kind can be considered, measure the composite water quality evaluation method of the many aspects such as item quantity, measure the item concentration。
Summary of the invention
The technical problem to be solved is for defect involved in background technology, it is provided that a kind of multi-parameter water quality detection and rating system and water quality ranking method thereof。
The present invention solves above-mentioned technical problem by the following technical solutions:
Multi-parameter water quality detection and rating system, comprise data analysis module and several data acquisition modules；
Described data acquisition module comprises acquisition controlling unit, solution temperature measuring unit, solution acid alkalinity measuring unit, solution turbidity measuring unit, electrical conductivity of solution measuring unit, power subsystem and the first communication unit, wherein, acquisition controlling unit is electrically connected with solution temperature measuring unit, solution acid alkalinity measuring unit, solution turbidity measuring unit, electrical conductivity of solution measuring unit, power subsystem, the first communication unit respectively；
Described data analysis module comprises data analysis control unit, second communication unit, display unit and memory element, and wherein, data analysis control unit is electrically connected with second communication unit, display unit, memory element respectively；
Described acquisition controlling unit is for sending the solution temperature collected, acid-base value, turbidity, electrical conductivity to second communication unit by the first communication unit；
Described data analysis unit stores to memory element for the solution temperature received by second communication unit, acid-base value, turbidity, electrical conductivity, the water grade of analytical solution, and control display unit display solution temperature, acid-base value, turbidity, electrical conductivity and water grade。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, described solution temperature measuring unit adopts DS18B20 temperature sensor chip。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, described solution acid alkalinity measuring unit comprises acid-base value electrode and acid-base value modulate circuit, and described acid-base value electrode is connected with described acquisition controlling unit by acid-base value modulate circuit。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, described acid-base value electrode adopts thunder magnetic E-201-C electrode。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, described solution turbidity measuring unit comprises turbidity transducer and turbidity modulate circuit, and described turbidity transducer is connected with described acquisition controlling unit by turbidity modulate circuit。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, described electrical conductivity of solution measuring unit comprises conductivity electrode and electrical conductivity modulate circuit two parts, and described conductivity electrode is connected with described acquisition controlling unit by electrical conductivity modulate circuit。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, described conductivity electrode adopts thunder magnetic DJS-10E electrode。
As multi-parameter water quality of the present invention detection and the further prioritization scheme of rating system, acquisition controlling unit adopts mixed-signal processor MSP430F5529。
The invention also discloses a kind of water quality ranking method based on the detection of this multi-parameter water quality and rating system, comprise the steps of
Step 1), compares the solution temperature collected with the standard temperature preset；
Step 1.1), if the solution temperature collected is equal to the standard temperature preset, then it is 0 by the temperature coefficient value assignment of solution；
Step 1.2), if the solution temperature collected is not equal to default standard temperature；
Step 1.2.1), take absolute value after the solution temperature collected is deducted default standard temperature, and by this absolute value divided by default temperature mark value, obtain the temperature error multiple of solution；
Step 1.2.2), the temperature error multiple of solution is compared with the first default temperature multiple threshold value, the second default temperature multiple threshold value respectively, described the first default temperature multiple threshold value is less than the second default temperature multiple threshold value；
Step 1.2.2.1), if the temperature error multiple of solution is less than or equal to the first default temperature multiple threshold value, it is 1 by the temperature coefficient value assignment of solution；
Step 1.2.2.2), if the temperature error multiple of solution more than the first default temperature multiple threshold value less than the second default temperature multiple threshold value, be 5 by the temperature coefficient value assignment of solution；
Step 1.2.2.3), if the temperature error multiple of solution is more than the second default temperature multiple threshold value, it is 9 by the temperature coefficient value assignment of solution；
Step 2), the solution acid alkalinity collected is compared with the acid-base value standard value preset；
Step 2.1), if the solution acid alkalinity collected is equal to the acid-base value standard value preset, then it is 0 by the acid-base value coefficient value assignment of solution；
Step 2.2), if the solution acid alkalinity collected is not equal to default acid-base value standard value；
Step 2.2.1), take absolute value after the solution acid alkalinity collected is deducted default acid-base value standard value, and by this absolute value divided by default acid-base value mark value, obtain the acid-base value error multiple of solution；
Step 2.2.2), the acid-base value error multiple of solution is compared with the first default acid-base value multiple threshold value, the second default acid-base value multiple threshold value respectively, described the first default acid-base value multiple threshold value is less than the second default acid-base value multiple threshold value；
Step 2.2.2.1), if the acid-base value error multiple of solution is less than or equal to the first default acid-base value multiple threshold value, it is 1 by the acid-base value coefficient value assignment of solution；
Step 2.2.2.2), if the acid-base value error multiple of solution more than the first default acid-base value multiple threshold value less than the second default acid-base value multiple threshold value, be 5 by the acid-base value coefficient value assignment of solution；
Step 2.2.2.3), if the acid-base value error multiple of solution is more than the second default acid-base value multiple threshold value, it is 9 by the acid-base value coefficient value assignment of solution；
Step 3), compares the solution turbidity collected with the turbidity standard value preset；
Step 3.1), if the solution turbidity collected is equal to the turbidity standard value preset, then it is 0 by the turbidity coefficient value assignment of solution；
Step 3.2), if the solution turbidity collected is not equal to default turbidity standard value；
Step 3.2.1), take absolute value after the solution turbidity collected is deducted default turbidity standard value, and by this absolute value divided by default turbidity mark value, obtain the turbidity error multiple of solution；
Step 3.2.2), the turbidity error multiple of solution is compared with the first default turbidity multiple threshold value, the second default turbidity multiple threshold value respectively, described the first default turbidity multiple threshold value is less than the second default turbidity multiple threshold value；
Step 3.2.2.1), if the turbidity error multiple of solution is less than or equal to the first default turbidity multiple threshold value, it is 1 by the turbidity coefficient value assignment of solution；
Step 3.2.2.2), if the turbidity error multiple of solution more than the first default turbidity multiple threshold value less than the second default turbidity multiple threshold value, be 5 by the turbidity coefficient value assignment of solution；
Step 3.2.2.3), if the turbidity error multiple of solution is more than the second default turbidity multiple threshold value, it is 9 by the turbidity coefficient value assignment of solution；
Step 4), compares the electrical conductivity of solution collected with the electrical conductivity standard value preset；
Step 4.1), if the electrical conductivity of solution collected is equal to the electrical conductivity standard value preset, then it is 0 by the electrical conductivity coefficient value assignment of solution；
Step 4.2), if the electrical conductivity of solution collected is not equal to default electrical conductivity standard value；
Step 4.2.1), take absolute value after the electrical conductivity of solution collected is deducted default electrical conductivity standard value, and by this absolute value divided by default electrical conductivity mark value, obtain the electrical conductivity error multiple of solution；
Step 4.2.2), the electrical conductivity error multiple of solution is compared with the first default electrical conductivity multiple threshold value, the second default electrical conductivity multiple threshold value respectively, described the first default electrical conductivity multiple threshold value is less than the second default electrical conductivity multiple threshold value；
Step 4.2.2.1), if the electrical conductivity error multiple of solution is less than or equal to the first default electrical conductivity multiple threshold value, it is 1 by the electrical conductivity coefficient value assignment of solution；
Step 4.2.2.2), if the electrical conductivity error multiple of solution more than the first default electrical conductivity multiple threshold value less than the second default electrical conductivity multiple threshold value, be 5 by the electrical conductivity coefficient value assignment of solution；
Step 4.2.2.3), if the electrical conductivity error multiple of solution is more than the second default electrical conductivity multiple threshold value, it is 9 by the electrical conductivity coefficient value assignment of solution；
Step 5), is added the temperature coefficient value of solution, acid-base value coefficient value, turbidity coefficient value, electrical conductivity coefficient value, obtains the water quality index value of solution；
Step 6), at the water grade that the water quality index pre-build is corresponding with inquiry solution water quality coefficient value in water grade synopsis, obtains the water grade of solution。
The present invention adopts above technical scheme compared with prior art, has following technical effect that
1. the detection of the temperature of pair water, acid-base value, turbidity, these four water quality core parameters of electrical conductivity, obtains the quality condition of water-outlet body, provides scientific basis for the planning of water resource, management, exploitation, utilization and water prevention and cure of pollution；
2. crossing over the restriction of hardware platform, method can use on multiple acquisition controlling unit, platform；
3. can consider measure the item kind, measure the many aspects such as item quantity, measure the item concentration, according to arbitrarily multinomial water quality data not of the same race, obtain the evaluation methodology of a water quality assessment result。
Accompanying drawing explanation
Fig. 1 is data acquisition module block structural diagram；
Fig. 2 is data analysis module structure chart；
Fig. 3 is pH modulate circuit circuit diagram；
Fig. 4 is electrical conductivity measurement circuit circuit diagram；
Fig. 5 is acquisition controlling unit software flow schematic diagram。
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail:
The invention discloses a kind of multi-parameter water quality detection and rating system, comprise data analysis module and several data acquisition modules；
As shown in Figure 1, described data acquisition module comprises acquisition controlling unit, solution temperature measuring unit, solution acid alkalinity measuring unit, solution turbidity measuring unit, electrical conductivity of solution measuring unit, power subsystem and the first communication unit, wherein, acquisition controlling unit is electrically connected with solution temperature measuring unit, solution acid alkalinity measuring unit, solution turbidity measuring unit, electrical conductivity of solution measuring unit, power subsystem, the first communication unit respectively；
As in figure 2 it is shown, described data analysis module comprises data analysis control unit, second communication unit, display unit and memory element, wherein, data analysis control unit is electrically connected with second communication unit, display unit, memory element respectively；
Described acquisition controlling unit is for sending the solution temperature collected, acid-base value, turbidity, electrical conductivity to second communication unit by the first communication unit；
Described data analysis unit stores to memory element for the solution temperature received by second communication unit, acid-base value, turbidity, electrical conductivity, water grade according to SJ water quality ranking method analytical solution, and control display unit display solution temperature, acid-base value, turbidity, electrical conductivity and water grade。
Solution temperature measurement module adopts imported with original packaging DS18B20 temperature sensor chip, and each pin of chip is used that heat-shrink tube separates, it is prevented that short circuit, and internal sealing, high-quality stainless steel tube encapsulates。Waterproof, protection against the tide, anti-get rusty。Each probe is through strict test。Temperature-sensitive wide ranges-55 DEG C～+125 DEG C, degree of accuracy 0.1 degree Celsius, meet national standard。
DS18B20 has the one-wire interface mode of uniqueness, only needs a Tiaokou line can realize the both-way communication of acquisition controlling unit and DS18B20 when being connected with acquisition controlling unit。
Solution acid alkalinity measurement module includes acid-base value electrode and acid-base value modulate circuit two parts。
Acid-base value electrode adopts thunder magnetic E-201-C electrode, and this electrode performance is very superior。Detectable concentration scope PH0-14, response time≤5S, stabilization time≤60S, element power consumption≤0.5W, operating temperature-10 ~ 50 DEG C (nominal temperature 20 DEG C), working relative humidity 95%RH(nominal humidity 65%RH), 3 years service life。
The signal collected by acid-base value electrode passes to PH modulate circuit after capacitor filtering, as shown in Figure 3, owing to acid-base value electrode does not produce voltage when neutral (PH=7), acid-base value electrode produces negative voltage when acid (PH<7), acid-base value electrode produces forward voltage when alkalescence (PH>7), but acquisition controlling unit is only capable of gathering forward voltage, therefore need to a forward bias, herein by fixed value resistance RPH1 and RPH2, voltage stabilizing chip TL431ACD, tetra-components and parts dividing potential drops of adjustable potentiometer RPH5 obtain this forward bias, owing to employing adjustable potentiometer RPH5, according to bleeder circuit feature, the bias voltage being added to amplifier TLC4502 pin 3 is adjustable。Theoretical according to us calculates and actual measurement, and we arrange bias voltage is that 1V is many, and is adjustable so that the voltage corresponding to all acid-base value is all positive voltage。Simultaneously, the signal of telecommunication produced due to acid-base value electrode is fainter, at several millivolts to tens millivolts, the too little signal of acquisition controlling unit collection can produce very big error (relative error is bigger), so needing amplifier to be amplified, the design uses TLC4502 to be amplified, and final signal said that the AD sending into acquisition controlling unit gathered pin。
Solution turbidity measurement module includes turbidity transducer and turbidity modulate circuit two parts。
< 500ms, operates temperature-30 DEG C 80 DEG C to solution turbidity sensor response time, stores temperature-10 80 DEG C。Ultimate principle is a light emitting diode in luminescence, light by one section of liquid and reflect, refraction effect, place a photoconductive resistance light emitting diode one segment distance is other。When solution is muddy, many light of diode emitter are all reflected, are reflected, and the light arriving photoconductive resistance is less, and photoconductive resistance resistance is relatively big, and after energising, voltage thereon is bigger；When solution is as clear as crystal, the small part light of diode emitter is all reflected, is reflected, and the light arriving photoconductive resistance is more, and photoconductive resistance resistance is less, and after energising, voltage thereon is less。We learn the muddy degree of solution by gathering different voltage。
Solution turbidity modulate circuit mainly will not be transformed to, at the turbidity transducer output voltage of acquisition controlling unit collection voltage range, the voltage meeting acquisition controlling unit A/D voltage acquisition scope。
Electrical conductivity of solution measurement module includes conductivity electrode and electrical conductivity measurement circuit two parts。
Conductivity electrode adopts thunder magnetic DJS-10E electrode, and this electrode performance is superior, and reliability is high。
Conductivity electrode is passive device, it is necessary to outside giving is encouraged。As shown in Figure 4, Waveform generating circuit core adopts the AD9833 of ADI company。The square wave that acquisition controlling unit produces is as the system clock (reference clock) of AD9833。Mixed signal acquisition controlling unit MSP430F5529 is by SCLK, SDATA, FSYNC pin to AD9833 writing commands word, obtaining the sine wave of our needs as excitation。
The design adopts frequency variation method to measure the electrical conductivity of water body。Frequency variation method is after conductance cell equivalent circuit is carried out extreme facility, it is possible to obtain parallel model and series model。Theoretical Calculation, double frequency (or frequency conversion) can eliminate the impact of electric capacity。The design chooses the double polarity sine ripple of 500Hz and 1000Hz as pumping signal。
The frequency conversion sine wave that AD9833 produces is on conductivity electrode, after the signal of electrode output passes through filtering, operational amplifier OPA2704, and the AC signal after being processed。Owing to acquisition controlling unit can only gather the DC voltage of an only small scope (0V-2.5V), so need AC signal is transformed to direct current signal herein。In order to improve the precision of system, native system design is selected the real effective chip AD637 of ADI company。Allowing AC signal pass through AD637 chip, AC signal is changed into the direct current virtual value signal of its correspondence, direct current now is given to the A/D of acquisition controlling unit and gathers port, carries out RESPONSE CALCULATION, obtain final water body conductivity value after acquisition controlling unit collection。
Acquisition controlling unit adopts the mixed-signal processor MSP430F5529 of TI company, and this processor provides abundant built in hardware module and good processor performance。The most prominent feature of this single-chip microcomputer is low-voltage, low-power consumption, it is adaptable to the occasion of low-power consumption demand。About Single Chip Microcomputer (SCM) program, such as Fig. 5, start preprocessor starts to perform from main program instructions, complete corresponding function of initializing, show starting-up interface simultaneously, after system initialization completes, enter main interface, processor cuts out and enters low-power consumption mode, and interrupt event to be had (user instruction) rear restarts to run。User instruction enters again closed mode after completing, go round and begin again, thus completing whole system task。
Power subsystem employs power management chip and+12V ,-12V common voltage is changed into+3.3V ,+4.1V ,+5V etc. for each components and parts。
First communication unit includes SIM900A chip and antenna, and acquisition controlling unit is by sending instruction to SIM900A, and is sent to by water quality data after SIM900A, SIM900A receive instruction and water quality data, is sent by water quality data by antenna。
Second communication unit is by after data receiver, under the control of data analysis control unit, data is stored in memory element。
Water quality data, except second communication unit, memory element, display unit are controlled, also to be carried out intelligence grading by data analysis control unit, and the method for grading is SJ water quality ranking method。SJ water quality ranking method, for the grading of water quality condition, has the feature such as versatility, comprehensive, popularity。This method take into account measure the item kind, measures the many aspects such as item quantity, measure the item concentration, and allows some parameters of User Defined (threshold value), in order to adapt to the water quality evaluation and test of different occasion。Method is above four parts comprehensively, provide Water Quality Evaluation result。
Water quality ranking method comprises the steps of
Step 1), compares the solution temperature collected with the standard temperature preset；
Step 1.1), if the solution temperature collected is equal to the standard temperature preset, then it is 0 by the temperature coefficient value assignment of solution；
Step 1.2), if the solution temperature collected is not equal to default standard temperature；
Step 1.2.1), take absolute value after the solution temperature collected is deducted default standard temperature, and by this absolute value divided by default temperature mark value, obtain the temperature error multiple of solution；
Step 1.2.2), the temperature error multiple of solution is compared with the first default temperature multiple threshold value, the second default temperature multiple threshold value respectively, described the first default temperature multiple threshold value is less than the second default temperature multiple threshold value；
Step 1.2.2.1), if the temperature error multiple of solution is less than or equal to the first default temperature multiple threshold value, it is 1 by the temperature coefficient value assignment of solution；
Step 1.2.2.2), if the temperature error multiple of solution more than the first default temperature multiple threshold value less than the second default temperature multiple threshold value, be 5 by the temperature coefficient value assignment of solution；
Step 1.2.2.3), if the temperature error multiple of solution is more than the second default temperature multiple threshold value, it is 9 by the temperature coefficient value assignment of solution；
Step 2), the solution acid alkalinity collected is compared with the acid-base value standard value preset；
Step 2.1), if the solution acid alkalinity collected is equal to the acid-base value standard value preset, then it is 0 by the acid-base value coefficient value assignment of solution；
Step 2.2), if the solution acid alkalinity collected is not equal to default acid-base value standard value；
Step 2.2.1), take absolute value after the solution acid alkalinity collected is deducted default acid-base value standard value, and by this absolute value divided by default acid-base value mark value, obtain the acid-base value error multiple of solution；
Step 2.2.2), the acid-base value error multiple of solution is compared with the first default acid-base value multiple threshold value, the second default acid-base value multiple threshold value respectively, described the first default acid-base value multiple threshold value is less than the second default acid-base value multiple threshold value；
Step 2.2.2.1), if the acid-base value error multiple of solution is less than or equal to the first default acid-base value multiple threshold value, it is 1 by the acid-base value coefficient value assignment of solution；
Step 2.2.2.2), if the acid-base value error multiple of solution more than the first default acid-base value multiple threshold value less than the second default acid-base value multiple threshold value, be 5 by the acid-base value coefficient value assignment of solution；
Step 2.2.2.3), if the acid-base value error multiple of solution is more than the second default acid-base value multiple threshold value, it is 9 by the acid-base value coefficient value assignment of solution；
Step 3), compares the solution turbidity collected with the turbidity standard value preset；
Step 3.1), if the solution turbidity collected is equal to the turbidity standard value preset, then it is 0 by the turbidity coefficient value assignment of solution；
Step 3.2), if the solution turbidity collected is not equal to default turbidity standard value；
Step 3.2.1), take absolute value after the solution turbidity collected is deducted default turbidity standard value, and by this absolute value divided by default turbidity mark value, obtain the turbidity error multiple of solution；
Step 3.2.2), the turbidity error multiple of solution is compared with the first default turbidity multiple threshold value, the second default turbidity multiple threshold value respectively, described the first default turbidity multiple threshold value is less than the second default turbidity multiple threshold value；
Step 3.2.2.1), if the turbidity error multiple of solution is less than or equal to the first default turbidity multiple threshold value, it is 1 by the turbidity coefficient value assignment of solution；
Step 3.2.2.2), if the turbidity error multiple of solution more than the first default turbidity multiple threshold value less than the second default turbidity multiple threshold value, be 5 by the turbidity coefficient value assignment of solution；
Step 3.2.2.3), if the turbidity error multiple of solution is more than the second default turbidity multiple threshold value, it is 9 by the turbidity coefficient value assignment of solution；
Step 4), compares the electrical conductivity of solution collected with the electrical conductivity standard value preset；
Step 4.1), if the electrical conductivity of solution collected is equal to the electrical conductivity standard value preset, then it is 0 by the electrical conductivity coefficient value assignment of solution；
Step 4.2), if the electrical conductivity of solution collected is not equal to default electrical conductivity standard value；
Step 4.2.1), take absolute value after the electrical conductivity of solution collected is deducted default electrical conductivity standard value, and by this absolute value divided by default electrical conductivity mark value, obtain the electrical conductivity error multiple of solution；
Step 4.2.2), the electrical conductivity error multiple of solution is compared with the first default electrical conductivity multiple threshold value, the second default electrical conductivity multiple threshold value respectively, described the first default electrical conductivity multiple threshold value is less than the second default electrical conductivity multiple threshold value；
Step 4.2.2.1), if the electrical conductivity error multiple of solution is less than or equal to the first default electrical conductivity multiple threshold value, it is 1 by the electrical conductivity coefficient value assignment of solution；
Step 4.2.2.2), if the electrical conductivity error multiple of solution more than the first default electrical conductivity multiple threshold value less than the second default electrical conductivity multiple threshold value, be 5 by the electrical conductivity coefficient value assignment of solution；
Step 4.2.2.3), if the electrical conductivity error multiple of solution is more than the second default electrical conductivity multiple threshold value, it is 9 by the electrical conductivity coefficient value assignment of solution；
Step 5), is added the temperature coefficient value of solution, acid-base value coefficient value, turbidity coefficient value, electrical conductivity coefficient value, obtains the water quality index value of solution；
Step 6), at the water grade that the water quality index pre-build is corresponding with inquiry solution water quality coefficient value in water grade synopsis, obtains the water grade of solution。
Water grade comprises four grades: standard, slight pollution, intermediate pollution and serious pollution。After water analysis, data analysis control unit controls display unit, the water quality data in memorizer and water grade is shown on screen。
In water quality index and water grade synopsis, both contrast relationship are as follows:
| Water quality index value | 0 | 1≤water quality index value≤4 | 5≤water quality index value≤8 | Water quality index value > 8 |
| Water grade | Standard | Slight pollution | Intermediate pollution | Serious pollution |
Those skilled in the art of the present technique it is understood that unless otherwise defined, all terms used herein (include technical term and scientific terminology) and have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning。Should also be understood that in such as general dictionary, those terms of definition should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or excessively formal implication。
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。
Claims (9)
1. multi-parameter water quality detection and rating system, it is characterised in that comprise data analysis module and several data acquisition modules；
Described data acquisition module comprises acquisition controlling unit, solution temperature measuring unit, solution acid alkalinity measuring unit, solution turbidity measuring unit, electrical conductivity of solution measuring unit, power subsystem and the first communication unit, wherein, acquisition controlling unit is electrically connected with solution temperature measuring unit, solution acid alkalinity measuring unit, solution turbidity measuring unit, electrical conductivity of solution measuring unit, power subsystem, the first communication unit respectively；
Described data analysis module comprises data analysis control unit, second communication unit, display unit and memory element, and wherein, data analysis control unit is electrically connected with second communication unit, display unit, memory element respectively；
Described acquisition controlling unit is for sending the solution temperature collected, acid-base value, turbidity, electrical conductivity to second communication unit by the first communication unit；
Described data analysis unit stores to memory element for the solution temperature received by second communication unit, acid-base value, turbidity, electrical conductivity, the water grade of analytical solution, and control display unit display solution temperature, acid-base value, turbidity, electrical conductivity and water grade。
2. multi-parameter water quality according to claim 1 detection and rating system, it is characterised in that described solution temperature measuring unit adopts DS18B20 temperature sensor chip。
3. multi-parameter water quality according to claim 1 detection and rating system, it is characterized in that, described solution acid alkalinity measuring unit comprises acid-base value electrode and acid-base value modulate circuit, and described acid-base value electrode is connected with described acquisition controlling unit by acid-base value modulate circuit。
4. multi-parameter water quality according to claim 3 detection and rating system, it is characterised in that described acid-base value electrode adopts thunder magnetic E-201-C electrode。
5. multi-parameter water quality according to claim 1 detection and rating system, it is characterised in that described solution turbidity measuring unit comprises turbidity transducer and turbidity modulate circuit, and described turbidity transducer is connected with described acquisition controlling unit by turbidity modulate circuit。
6. multi-parameter water quality according to claim 1 detection and rating system, it is characterized in that, described electrical conductivity of solution measuring unit comprises conductivity electrode and electrical conductivity modulate circuit two parts, and described conductivity electrode is connected with described acquisition controlling unit by electrical conductivity modulate circuit。
7. multi-parameter water quality according to claim 6 detection and rating system, it is characterised in that described conductivity electrode adopts thunder magnetic DJS-10E electrode。
8. multi-parameter water quality according to claim 1 detection and rating system, it is characterised in that acquisition controlling unit adopts mixed-signal processor MSP430F5529。
9. detect the water quality ranking method with rating system based on the multi-parameter water quality described in claim 1, it is characterised in that comprise the steps of
Step 1), compares the solution temperature collected with the standard temperature preset；
Step 1.1), if the solution temperature collected is equal to the standard temperature preset, then it is 0 by the temperature coefficient value assignment of solution；
Step 1.2), if the solution temperature collected is not equal to default standard temperature；
Step 1.2.1), take absolute value after the solution temperature collected is deducted default standard temperature, and by this absolute value divided by default temperature mark value, obtain the temperature error multiple of solution；
Step 1.2.2), the temperature error multiple of solution is compared with the first default temperature multiple threshold value, the second default temperature multiple threshold value respectively, described the first default temperature multiple threshold value is less than the second default temperature multiple threshold value；
Step 1.2.2.1), if the temperature error multiple of solution is less than or equal to the first default temperature multiple threshold value, it is 1 by the temperature coefficient value assignment of solution；
Step 1.2.2.2), if the temperature error multiple of solution more than the first default temperature multiple threshold value less than the second default temperature multiple threshold value, be 5 by the temperature coefficient value assignment of solution；
Step 1.2.2.3), if the temperature error multiple of solution is more than the second default temperature multiple threshold value, it is 9 by the temperature coefficient value assignment of solution；
Step 2), the solution acid alkalinity collected is compared with the acid-base value standard value preset；
Step 2.1), if the solution acid alkalinity collected is equal to the acid-base value standard value preset, then it is 0 by the acid-base value coefficient value assignment of solution；
Step 2.2), if the solution acid alkalinity collected is not equal to default acid-base value standard value；
Step 2.2.1), take absolute value after the solution acid alkalinity collected is deducted default acid-base value standard value, and by this absolute value divided by default acid-base value mark value, obtain the acid-base value error multiple of solution；
Step 2.2.2), the acid-base value error multiple of solution is compared with the first default acid-base value multiple threshold value, the second default acid-base value multiple threshold value respectively, described the first default acid-base value multiple threshold value is less than the second default acid-base value multiple threshold value；
Step 2.2.2.1), if the acid-base value error multiple of solution is less than or equal to the first default acid-base value multiple threshold value, it is 1 by the acid-base value coefficient value assignment of solution；
Step 2.2.2.2), if the acid-base value error multiple of solution more than the first default acid-base value multiple threshold value less than the second default acid-base value multiple threshold value, be 5 by the acid-base value coefficient value assignment of solution；
Step 2.2.2.3), if the acid-base value error multiple of solution is more than the second default acid-base value multiple threshold value, it is 9 by the acid-base value coefficient value assignment of solution；
Step 3), compares the solution turbidity collected with the turbidity standard value preset；
Step 3.1), if the solution turbidity collected is equal to the turbidity standard value preset, then it is 0 by the turbidity coefficient value assignment of solution；
Step 3.2), if the solution turbidity collected is not equal to default turbidity standard value；
Step 3.2.1), take absolute value after the solution turbidity collected is deducted default turbidity standard value, and by this absolute value divided by default turbidity mark value, obtain the turbidity error multiple of solution；
Step 3.2.2), the turbidity error multiple of solution is compared with the first default turbidity multiple threshold value, the second default turbidity multiple threshold value respectively, described the first default turbidity multiple threshold value is less than the second default turbidity multiple threshold value；
Step 3.2.2.1), if the turbidity error multiple of solution is less than or equal to the first default turbidity multiple threshold value, it is 1 by the turbidity coefficient value assignment of solution；
Step 3.2.2.2), if the turbidity error multiple of solution more than the first default turbidity multiple threshold value less than the second default turbidity multiple threshold value, be 5 by the turbidity coefficient value assignment of solution；
Step 3.2.2.3), if the turbidity error multiple of solution is more than the second default turbidity multiple threshold value, it is 9 by the turbidity coefficient value assignment of solution；
Step 4), compares the electrical conductivity of solution collected with the electrical conductivity standard value preset；
Step 4.1), if the electrical conductivity of solution collected is equal to the electrical conductivity standard value preset, then it is 0 by the electrical conductivity coefficient value assignment of solution；
Step 4.2), if the electrical conductivity of solution collected is not equal to default electrical conductivity standard value；
Step 4.2.1), take absolute value after the electrical conductivity of solution collected is deducted default electrical conductivity standard value, and by this absolute value divided by default electrical conductivity mark value, obtain the electrical conductivity error multiple of solution；
Step 4.2.2), the electrical conductivity error multiple of solution is compared with the first default electrical conductivity multiple threshold value, the second default electrical conductivity multiple threshold value respectively, described the first default electrical conductivity multiple threshold value is less than the second default electrical conductivity multiple threshold value；
Step 4.2.2.1), if the electrical conductivity error multiple of solution is less than or equal to the first default electrical conductivity multiple threshold value, it is 1 by the electrical conductivity coefficient value assignment of solution；
Step 4.2.2.2), if the electrical conductivity error multiple of solution more than the first default electrical conductivity multiple threshold value less than the second default electrical conductivity multiple threshold value, be 5 by the electrical conductivity coefficient value assignment of solution；
Step 4.2.2.3), if the electrical conductivity error multiple of solution is more than the second default electrical conductivity multiple threshold value, it is 9 by the electrical conductivity coefficient value assignment of solution；
Step 5), is added the temperature coefficient value of solution, acid-base value coefficient value, turbidity coefficient value, electrical conductivity coefficient value, obtains the water quality index value of solution；
Step 6), at the water grade that the water quality index pre-build is corresponding with inquiry solution water quality coefficient value in water grade synopsis, obtains the water grade of solution。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128986.XA CN105699616A (en) | 2016-03-07 | 2016-03-07 | Multi-parameter water quality detecting and rating system and water quality rating method based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610128986.XA CN105699616A (en) | 2016-03-07 | 2016-03-07 | Multi-parameter water quality detecting and rating system and water quality rating method based on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105699616A true CN105699616A (en) | 2016-06-22 |
Family
ID=56220154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610128986.XA Pending CN105699616A (en) | 2016-03-07 | 2016-03-07 | Multi-parameter water quality detecting and rating system and water quality rating method based on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105699616A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441449A (en) * | 2016-11-17 | 2017-02-22 | 江苏智石科技有限公司 | Method for controlling industrial environment air pollution monitoring system |
| CN106441458A (en) * | 2016-12-14 | 2017-02-22 | 青海师范大学 | SIM900A based intelligent remote water environment detection device |
| CN106483171A (en) * | 2016-11-17 | 2017-03-08 | 江苏智石科技有限公司 | A kind of water quality heavy metal pollution monitoring system |
| CN106645322A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | Control method for monitoring system of water heavy metal pollution |
| CN107884530A (en) * | 2017-09-20 | 2018-04-06 | 江苏杰创科技有限公司 | Hydrochemistry pollution on-line monitoring assesses early warning sensor network node system |
| CN109187900A (en) * | 2018-09-12 | 2019-01-11 | 叶福达 | A kind of water quality safety Monitoring and management system |
| CN109765272A (en) * | 2019-01-31 | 2019-05-17 | 沃菲育水科技有限公司 | Multifunctional water aquosity detection device |
| CN111033253A (en) * | 2017-11-20 | 2020-04-17 | 三菱日立电力系统株式会社 | Water quality diagnosis system, power station, and water quality diagnosis method |
| CN112014434A (en) * | 2020-07-29 | 2020-12-01 | 桂林优利特医疗电子有限公司 | Water quality real-time detection method and detection device for biochemical immunoassay analyzer |
| CN113777257A (en) * | 2021-09-02 | 2021-12-10 | 湖南汇青环保科技有限公司 | Water quality online monitoring big data analysis method, system and storage medium |
| CN116734969A (en) * | 2023-06-16 | 2023-09-12 | 深圳乐租宝科技有限公司 | Intelligent anomaly monitoring method for water meter metering data |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053139A (en) * | 2009-10-27 | 2011-05-11 | 中国科学院苏州纳米技术与纳米仿生研究所 | Real-time multiparameter remote water quality monitoring system and method |
| CN102353756A (en) * | 2011-07-13 | 2012-02-15 | 上海衡伟信息技术有限公司 | Hand-held water quality analyzer |
| CN202494677U (en) * | 2012-03-12 | 2012-10-17 | 西安大唐电信有限公司 | Small-size integration multi-parameter water quality digital online detector |
| CN202939167U (en) * | 2012-11-08 | 2013-05-15 | 厦门矽创微电子科技有限公司 | Remote water quality monitoring system |
| CN104897870A (en) * | 2015-06-18 | 2015-09-09 | 中国矿业大学 | Water quality evaluation method for real-time early warning of water supply network |
| CN205720196U (en) * | 2016-03-07 | 2016-11-23 | 南京航空航天大学 | Multi-parameter water quality detecting system |
-
2016
- 2016-03-07 CN CN201610128986.XA patent/CN105699616A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053139A (en) * | 2009-10-27 | 2011-05-11 | 中国科学院苏州纳米技术与纳米仿生研究所 | Real-time multiparameter remote water quality monitoring system and method |
| CN102353756A (en) * | 2011-07-13 | 2012-02-15 | 上海衡伟信息技术有限公司 | Hand-held water quality analyzer |
| CN202494677U (en) * | 2012-03-12 | 2012-10-17 | 西安大唐电信有限公司 | Small-size integration multi-parameter water quality digital online detector |
| CN202939167U (en) * | 2012-11-08 | 2013-05-15 | 厦门矽创微电子科技有限公司 | Remote water quality monitoring system |
| CN104897870A (en) * | 2015-06-18 | 2015-09-09 | 中国矿业大学 | Water quality evaluation method for real-time early warning of water supply network |
| CN205720196U (en) * | 2016-03-07 | 2016-11-23 | 南京航空航天大学 | Multi-parameter water quality detecting system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441449A (en) * | 2016-11-17 | 2017-02-22 | 江苏智石科技有限公司 | Method for controlling industrial environment air pollution monitoring system |
| CN106483171A (en) * | 2016-11-17 | 2017-03-08 | 江苏智石科技有限公司 | A kind of water quality heavy metal pollution monitoring system |
| CN106645322A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | Control method for monitoring system of water heavy metal pollution |
| CN106441458A (en) * | 2016-12-14 | 2017-02-22 | 青海师范大学 | SIM900A based intelligent remote water environment detection device |
| CN107884530A (en) * | 2017-09-20 | 2018-04-06 | 江苏杰创科技有限公司 | Hydrochemistry pollution on-line monitoring assesses early warning sensor network node system |
| CN111033253A (en) * | 2017-11-20 | 2020-04-17 | 三菱日立电力系统株式会社 | Water quality diagnosis system, power station, and water quality diagnosis method |
| CN109187900A (en) * | 2018-09-12 | 2019-01-11 | 叶福达 | A kind of water quality safety Monitoring and management system |
| CN109765272A (en) * | 2019-01-31 | 2019-05-17 | 沃菲育水科技有限公司 | Multifunctional water aquosity detection device |
| CN112014434A (en) * | 2020-07-29 | 2020-12-01 | 桂林优利特医疗电子有限公司 | Water quality real-time detection method and detection device for biochemical immunoassay analyzer |
| CN113777257A (en) * | 2021-09-02 | 2021-12-10 | 湖南汇青环保科技有限公司 | Water quality online monitoring big data analysis method, system and storage medium |
| CN116734969A (en) * | 2023-06-16 | 2023-09-12 | 深圳乐租宝科技有限公司 | Intelligent anomaly monitoring method for water meter metering data |
| CN116734969B (en) * | 2023-06-16 | 2024-02-20 | 深圳乐租宝科技有限公司 | Intelligent anomaly monitoring method for water meter metering data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105699616A (en) | Multi-parameter water quality detecting and rating system and water quality rating method based on same | |
| CN103983758B (en) | Portable automobile machine oil device for detecting performance and method | |
| CN204631024U (en) | A kind of portable real-time water quality monitor | |
| CN101556240B (en) | Chlorophyll measuring apparatus based on RGB (red, green and blue) three-primary colors digital signals | |
| CN204758596U (en) | Dissolved gas content dynamic calibration system among transformer oil | |
| CN201984116U (en) | Comprehensive evaluating device of sulfur hexafluoride electrical equipment | |
| CN105223099A (en) | Shale gas air content tester and method of testing thereof | |
| CN101556245B (en) | Chlorophyll measurement method based on RGB digital signal | |
| CN104034670A (en) | Dual-index water quality on-line analysis method and apparatus for simultaneous determination of COD and ammonia nitrogen | |
| CN205720196U (en) | Multi-parameter water quality detecting system | |
| CN105738438A (en) | Instrument and method for fast detecting bicarbonate radical and carbonate radical in water through double-electrode method | |
| CN103217507B (en) | A kind of intelligent wireless carbon remittance monitoring system | |
| CN110646682A (en) | System for monitoring interference potential of metal buried pipeline in real time | |
| CN101650359A (en) | Coal caloric value soft measuring method based on knowledge fusion machine learning algorithm | |
| CN204479564U (en) | Based on the semisubmersible Water Test Kits of wireless telecommunications | |
| CN102680544A (en) | Multi-parameter boiler water quality analysis method based on flow injection | |
| CN202330401U (en) | Data acquisition and processing system of mobile platform for sewage biological treatment technique verification and evaluation | |
| CN104458870A (en) | Heavy metal ion concentration automatic detection system | |
| CN104374882A (en) | Wireless intelligent carbon sink monitoring system | |
| CN110888100A (en) | Single-phase intelligent electric energy meter online on-load detection system and method | |
| CN101556244B (en) | Measurement method for chlorophyll content in cucumber leaves based on RGB chlorophyll meter | |
| CN109322819A (en) | A kind of online efficiency test pumping class system and energy consumption analysis system and method | |
| CN207515834U (en) | A kind of air quality detection system based on multi-sensor information fusion | |
| CN205619988U (en) | Gaseous ration meter of gassiness volume desorption | |
| CN105115885B (en) | A kind of portable ground net corrosion condition monitoring system and monitoring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |