CN106821257B - Method for sensing washing water quality of household electrical appliance - Google Patents
Method for sensing washing water quality of household electrical appliance Download PDFInfo
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- CN106821257B CN106821257B CN201510888914.0A CN201510888914A CN106821257B CN 106821257 B CN106821257 B CN 106821257B CN 201510888914 A CN201510888914 A CN 201510888914A CN 106821257 B CN106821257 B CN 106821257B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 201
- 238000005406 washing Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004458 analytical method Methods 0.000 claims description 25
- 239000003599 detergent Substances 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 239000006210 lotion Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000003012 network analysis Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 claims 1
- 239000008187 granular material Substances 0.000 description 15
- 238000004140 cleaning Methods 0.000 description 9
- 238000004851 dishwashing Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- ZFXYFBGIUFBOJW-UHFFFAOYSA-N theophylline Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC=N2 ZFXYFBGIUFBOJW-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
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- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
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- 235000012054 meals Nutrition 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- -1 silt Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
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- 210000004243 sweat Anatomy 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 229960000278 theophylline Drugs 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
本发明公开了一种家电产品洗涤水质的感测方法，由控制系统操作浊度传感器、导电率传感器分别采集清水的数值为基础数值，并由浊度传感器、导电率传感器分别连续采集预定秒数的水质浊度感测数值、导电率感测数值，由控制系统记录浊度、导电率感测数值的起始值、结束值、平均值、最大值及最小值，判断最大值发生秒数、最小值发生秒数及感测数值总时间的各数值为感测数值特征，再分别将洗涤水的浊度、导电率与基础数值进行比对分析，分别取得浊度、导电率感测数值，供控制系统判断洗涤过程是否继续，达到控制洗涤过程以及节能、省水的目的。
The invention discloses a method for sensing the washing water quality of household appliances. A control system operates a turbidity sensor and a conductivity sensor to respectively collect the values of clean water as basic values, and the turbidity sensor and the conductivity sensor respectively continuously collect the water quality turbidity sensing values and the conductivity sensing values for a predetermined number of seconds. The control system records the starting value, ending value, average value, maximum value and minimum value of the turbidity and conductivity sensing values, and determines the values of the maximum value occurrence seconds, the minimum value occurrence seconds and the total time of the sensing values as sensing value characteristics. Then, the turbidity and conductivity of the washing water are respectively compared and analyzed with the basic values, and the turbidity and conductivity sensing values are respectively obtained for the control system to determine whether the washing process is to continue, thereby achieving the purpose of controlling the washing process and saving energy and water.
Description
Technical field
The present invention relates to a kind of method for sensing of household appliances washing water quality, and washing process can be predicted in this method, to control
System washing water and time, the degree of fouling by sensing object to be cleaned controls time and the water consumption of washing process, to reach
To energy conservation, water-saving purpose.
Background technique
It is many to come out to electronics, electrical relevant household appliances with being constantly progressive for electronics technology epoch, it is mentioned for people
For it is in life it is comfortable with it is convenient, in food, clothing, housing and transportation and amusement in daily life, pass through different household appliances and carry out
Quickly processing reduces time-consuming manually, takes a lot of work and is not perfect.In general household appliances, partially need to connect water
Source carries out operation, such as washing machine, dish-washing machine carry out washing and cleaning operation using water flow cooperation cleaning solution, detergent etc., can need not
It starts and is cleaned up clothing, dishware etc., but in the process of cleaning, the water flow of washing machine internal is because on clothing
Dust, fines or cleaning solution, detergent etc. influence, and the water flow of the turbidity raising or washing machine internal that cause water quality is because to be washed
The dirty, fines or dust that are attached on clothing and cleaning solution, detergent and the hardness of tap water etc. that are added in water flow, also
Will lead to the turbidity of water quality, granule density will improve, thus must by be cleaned multiple times can be only achieved by clothing or dish meal
The purpose that tool etc. cleans up, so that the ion concentration of water quality meets examination criteria.Thus, at present in washing machine or dish-washing machine
Water quality sensor device is added, water quality back reflection is sensed by projection source and is received, to sense water quality granule density (in water
Grain concentration value, such as: undissolved detergent, impurity or dust or hair or clothing soft flocks, cotton-wool) value, for judging water quality
Turbidity situation resets the washing and cleaning operation mode of the household appliances such as washing machine or dish-washing machine；However detergent used today
It is still lasting to be promoted and improve the ability of cleaning, it only detects the granule density in water and washing machine can not be detected or dish-washing machine operated
The residual of detergent in journey.
If remaining detergent in water to be detected, the ion concentration generated after being dissolved in the water by detection solid changes
It learns；When in water dissolved with the salt that can be dissociated, such as salt, sweat, sugar, beverage, pigment etc. and detergent, bleaching water or soft
When soft essence, the solution, that is, conductive, conductive capability is stronger, and the amount of solid incorporated in water that represents is more, conductivity
The measured value of (Electric Conductivity, EC) is higher.
Water quality sensing is sensed for the two major classes such as ion concentration and granule density, and wherein ion concentration is with electrode approach
Sensing, can in water sensing alkaline soluble materials concentration (TDS), and electrode senses can be divided into direct signal (i.e. conductivity) and than
Compared with signal (such as pH value) mode.Granule density is to indicate suspended solid total amount (TSS) insoluble in water, usually can be by turbid
Degree sensing value calculates to obtain it.For the turbidity value of usual water quality between 1NTU~10000NTU, the detection of general household appliances is dense
Degree is turbidity value between 100NTU~4000NTU, and the type etc. according to manufacturer, cleaning tool is different and has in data
Difference；And the ion concentration value of water quality is lower than 1mS/cm degree hereinafter, washing behaviour in service of the household electrical appliances because considering detergent, one
As detectable concentration be conductivity between 0,1~10mS/cm；But general household appliances are all using single-sensor to detect
Water quality is surveyed, granule density, the ion concentration (turbidity and conductivity) of water quality can not be detected simultaneously, because turbidity transducer is directed to water
The granule density of matter is detected, and the ion concentration of water quality can not be detected；Ion concentration sensor for water quality from
Sub- concentration is detected, and the granule density of water quality is less susceptible to measure；When practical application is implemented, comes with some shortcomings and be stranded
It disturbs, such as:
(1) granule density sensor only detects the granule density of water quality, can not detect the ion concentration of water quality, be easy to cause
Retained foreign body or Clean- detergent influence water quality in water quality, in addition, soluble substance such as sugar, salt, coffee, theophylline, color
Element etc. is difficult to differentiate, and cleaning is caused to be not thorough.
(2) ion concentration sensor only detects the ion concentration of water quality, can not detect the granule density of water quality, if water quality
In granule density value it is higher, then easily cause the detecting anodizing or aging of ion concentration sensor, it is dense to may cause ion
Spend the reduced service life of sensor.
(3) single-sensor installed in household appliances at present, and the turbidity and conductivity of water quality can not be detected simultaneously, it is right
In being out of one's reckoning for water analysis, time or water consumption of washing process etc. can not be managed, the mesh of energy saving cannot be reached
's.
So being sensed (granule density, ion by water quality when the turbidity transducer for how solving current water quality detecting uses
Concentration) limitation, lead to problems such as detect water quality quality is deteriorated and cause water quality sensor detect effect it is incorrect, as from
The relevant manufactures of thing the industry want to study improved direction.
Summary of the invention
Inventor is collecting related data in view of the above problem and deficiency, via multi-party assessment and consideration, and with
Many years of experience accumulated in this industry, through continuous trial and modification, beginning design it is such can by turbidity transducer, lead
Electric rate sensor detects granule density and dissolved material density in washing water, the letter sensed through a period of time continuous acquisition simultaneously
Breath, then the variation tendency of sensing numerical value is analyzed, so as to judge water quality characteristic, and then manipulate the household appliances washing of washing process
The method for sensing of water quality.
Step is surveyed it is a primary object of the present invention to the washing water texture, and turbidity transducer, conductivity are operated by control system
Sensor acquires the numerical value of the clear water in sink respectively as basic numerical value, and is connected respectively by turbidity transducer, conductivity sensor
The water turbidity sensing numerical value of continuous acquisition predetermined number of seconds, conductivity sense numerical value, are sensed by control system record turbidity, conductivity
Initial value, end value, average value, maximum value and the minimum value of numerical value carry out judging that number of seconds occurs for maximum value, the second occurs for minimum value
Number and each numerical value of sensing numerical value total time are sensing numerical characteristics, then respectively by the turbidity of washing water, conductivity and basic number
Value is compared, and to obtain turbidity, conductivity sensing numerical value respectively, judges whether washing process continues for control system,
Achieve the purpose that control washing process and energy conservation, water-saving.
Secondary objective of the invention is that the water quality inspection apparatus includes control system, turbidity transducer and conductivity sensing
Device, and turbidity transducer, conduction are manipulated in the pre-set programs for having manipulation washing process in control system, and by control system
Rate sensor senses turbidity and conductivity in washing water etc., then carries out the comparison analysis of various sensing numerical value, to obtain water quality
Turbidity and conductivity to be carried out global alignment analysis can judge whether washing process continues or terminate, and can grasp
Control washing water, process and wash time etc., achieve the purpose that sufficiently to manage laundry operation process.
Another object of the present invention is to the turbidity transducers and the continuous predetermined number of seconds acquisition washing of conductivity sensor to use
The sensing numerical value of water, the predetermined number of seconds can be 5~60 seconds, and can record the turbidity in the predetermined number of seconds (5~60 seconds) time,
The number of seconds of the generations such as initial value, end value, average value, maximum value and the minimum value of conductivity and the total acquisition time of sensing, with
The numerical value detected for control system according to turbidity transducer, conductivity sensor etc. compares analysis respectively, then carries out synthesis
Compare analysis.
In order to achieve the above object, the present invention provides a kind of method for sensing of household appliances washing water quality, this method makes
It is sensed with a water quality inspection apparatus, water quality inspection apparatus includes control system, turbidity transducer and conductivity sensor, is somebody's turn to do
Method for sensing the following steps are included:
(a) control system operation turbidity transducer, conductivity sensor first acquire clear water inside household appliances sink respectively
Numerical value, as the baseline values of comparison, and object and detergent to be cleaned are placed in sink；
(b) the water turbidity sensing of turbidity transducer, conductivity sensor continuous acquisition predetermined number of seconds respectively and is led at numerical value
Electric rate senses numerical value；
(c) initial value, end value, average value, the maximum of control system record turbidity sensing numerical value, conductivity sensing numerical value
Value and minimum value；
(d) pre-set programs in control system judge turbidity sensing numerical value, the second occurs for the maximum value of conductivity sensing numerical value
Number, minimum value occur number of seconds and sense each numerical value of numerical value total time, become sensing numerical characteristics；
(e) pre-set programs in control system the turbidity of washing water, conductivity are compared with baseline values respectively point
Analysis, obtains turbidity sensing numerical value respectively and conductivity senses numerical value；
(f) according to analyzing, resulting washing water turbidity senses numerical value to the pre-set programs in control system and conductivity senses number
Value is compared analysis again；
(g) pre-set programs in control system judge whether washing process continues, if so, respectively execute step (h),
(i), (j), if not, i.e. step (c) is executed；
(h) water supply of the pre-set programs manipulation washing process in control system decreases or increases, then executes step (c)；
Or
(i) time of the pre-set programs manipulation washing process in control system shortens or extends, then executes step (c)；Or
(j) the pre-set programs manipulation washing process in control system terminates.
In one embodiment of this invention, the predetermined number of seconds of the step (b) is 5~60 seconds.
In one embodiment of this invention, in the step (e), when the nephelometric analysis of washing water collects, " turbidity is maximum
Value occurs number of seconds < turbidity minimum value and number of seconds occurs " and " turbidity maximum value occur number of seconds < 3 " and " total acquisition time-turbidity is most
When small 3 " < of value time of origin, indicate that turbidity successively decreases, washing water is precipitating.
In one embodiment of this invention, if " turbidity detects range/turbidity average value " x% > 10%, that is, indicate washing
Water contains more impurity；If " turbidity detects range/turbidity average value " x% < 5%, i.e. expression detergent or object to be washed are
Sufficiently dissolved.
In one embodiment of this invention, when the nephelometric analysis of step (e) washing water, if " second occurs for turbidity maximum value
Number > turbidity minimum values occur number of seconds ", i.e., expression lotion gradually dissolve or object to be cleaned also release it is dirty.
In one embodiment of this invention, in the conductivity analysis of step (e) washing water, if " conductivity detecting
Range/turbidity average value " x% > 5%, i.e. expression conductivity sensor is by bubble or impurity effect；And exclude conductivity most
Big value, minimum value, change to take second largest value and sub-minimum, then recalculate average value and total acquisition time, until " total acquisition time/
Average value " x%≤5%.
In one embodiment of this invention, in the conductivity analysis of step (e) washing water, if " the maximum of conductivity
Value occur number of seconds > conductivity minimum value occur number of seconds ", indicate detergent gradually dissolve or stay clean object also release it is dirty
It is dirty.
In one embodiment of this invention, the control system analysis turbidity sensing numerical value of the step (f), conductivity sense number
Value, if " (turbidity-clear water turbidity at present)/clear water turbidity baseline values " x% < 5%, and " (conductivity-clear water is conductive at present
Rate)/clear water conductivity baseline values " x% < 5%, that is, judge that washing water close to clear water, and represents and washes journey and completed, then by
Step (g) control system manipulates pre-set programs selection and executes step (h), (i) or (j).
Detailed description of the invention
Fig. 1 is simple block diagram of the invention；
Fig. 2 is flow chart (one) of the invention；
Fig. 3 is flow chart (two) of the invention；
Fig. 4 is that water turbidity numerical value of the invention declines figure；
Fig. 5 is that water turbidity numerical value of the invention rises figure；
Fig. 6 is that water electric conductivity numerical value of the invention declines figure；
Fig. 7 is that water electric conductivity numerical value of the invention rises figure；
Fig. 8 is that water concentration of the invention generates abnormality figure.
Description of symbols: 1- water quality sensing device；11- control system；12- turbidity transducer；13- conductivity sensing
Device.
Specific embodiment
To reach above-mentioned purpose with effect, the technology used in the present invention means and its construction, the method for implementation etc. are hereby drawn
Figure is as follows with regard to its feature and function of presently preferred embodiments of the present invention elaborate.
It is respectively as shown in Figure 1, Figure 2, Figure 3 shows simple block diagram of the invention, flow chart (one), flow chart (two), by scheming
Shown in it is clear that household appliances provided by the invention washing water quality method for sensing, water quality sensing device 1 includes
Control system 11, turbidity transducer 12 and conductivity sensor 13, for detect washing water quality granule density (turbidity) or
The variation tendency of dissolved material density (conductivity), it is to be washed to provide household appliances washing to judge the water quality characteristic of washing water
When object (can be clothing or tableware etc.) and lotion (can be washing powder, laundry paks or abluent etc.), by control system 11 with
The step of timeliness that built-in washing procedure manipulation washing process carries out, water quality sensing device 1 carries out sensing water quality, is as follows:
(a) control system 11 operates turbidity transducer 12, conductivity sensor 13 and first acquires default household appliances water respectively
The numerical value of clear water, baseline values (the turbidity value V of clear water as comparison inside slotwater, conductivity values Ewater), and in sink
Middle merging object to be cleaned (can be clothing or tableware etc.) and detergent.
(b) turbidity transducer 12, conductivity sensor 13 distinguish continuous acquisition predetermined number of seconds (can be between 5~60 seconds)
Water turbidity senses numerical value (Vi), conductivity sense numerical value (Ei)。
(c) control system 11 records the numerical value of turbidity transducer 12,13 continuous acquisition of conductivity sensor, including turbidity sense
Survey numerical value (Vi), conductivity sense numerical value (Ei) initial value (Vs、Es), end value (Ve、Ee), average value (Vavg、Eavg), it is maximum
It is worth (Vmax、Emax) and minimum value (Vmin、Emin) etc..
(d) judge that turbidity senses numerical value (V by the pre-set programs of control system 11i), conductivity sense numerical value (Ei) maximum
It is worth (Vmax、Emax) number of seconds, minimum value (V occursmin、Emin) number of seconds occurs and senses each numerical value of numerical value total time (N), become sense
Survey numerical characteristics.
(e) pre-set programs in control system 11 are respectively by the turbidity of washing water, conductivity sensing numerical value (V, E) and basis
Numerical value (Vwater、Ewater) be compared, turbidity is obtained respectively senses numerical value (Vi) and conductivity sensing numerical value (Ei)。
(f) pre-set programs in control system 11 sense numerical value (V according to resulting washing water turbidity is analyzedi), conductivity
Sense numerical value (Ei) analysis is compared again.
(g) pre-set programs in control system 11 judge whether washing process continues, if so, respectively execute step (h),
(i), the either step in (j), if it is not, executing step (c).
(h) water supply of the pre-set programs manipulation washing process in control system 11 decreases or increases, then executes step
(c).Or
(i) time of the pre-set programs manipulation washing process in control system 11 shortens or extends, then executes step (c).
Or
(j) the pre-set programs manipulation washing process in control system 11 terminates.
The above-mentioned control system 11 can for preinstalled circuit layout control circuit, central processing unit (CPU), microprocessor or
Chip etc., and for being installed in default household appliances (such as washing machine or dish-washing machine), and installed in controllable default household appliances
Turbidity transducer 12, conductivity sensor 13 detect default household appliances washing water turbidity numerical value, conductivity value, give
To be compared again after record, and then the time of the washing process of controllable household appliances, water consumption etc.；Also, the control
System 11 records turbidity transducer 12, conductivity sensor 13 distinguishes continuous predetermined number of seconds (can be between 5~60 seconds) acquisition
The water turbidity of the washing water of default household appliances senses numerical value (Vi), conductivity sense numerical value (Ei)。
Numerical value is sensed by the water turbidity that control system 11 is acquired according to turbidity transducer 12, conductivity sensor 13 again
(Vi), conductivity sense numerical value (Ei), it is recorded and senses numerical value (V including turbidityi), conductivity sense numerical value (Ei) starting
It is worth (Vs、Es), end value (Ve、Ee), average value (Vavg、Eavg), maximum value (Vmax、Emax) and minimum value (Vmin、Emin) etc. numerical value
Afterwards, then respectively the judgement for carrying out turbidity, conductivity, finally integrates turbidity numerical value, conductivity value etc. again, judges washing process
Time and water consumption, wherein the judgement of water number turbidity, conductivity about washing water, such as Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8
Shown, the step of judging, is as described in the following, in which:
Water turbidity numerical value V (T about washing wateri) comparison analysis:
If " turbidity maximum value (Vmax) number of seconds < turbidity minimum value (V occursmin) number of seconds occurs (as shown in figure 4, water quality is turbid
Degree was gradually reduced by 10 seconds backward, 20 seconds 0 second etc.) " and " turbidity maximum value (Vmax) number of seconds < occurs 3 seconds " and " when total acquisition
Between (N)-turbidity minimum value (Vmin) number of seconds < occurs 3 seconds ", i.e. the water turbidity of expression washing water gradually successively decreases, washs
Water is precipitating, if " turbidity detects range/turbidity average value (V at this timeavg) " x% > 10%, i.e., expression washing water in containing compared with
More silt, particle or impurity etc., then the default washing procedure in control system 11, that is, capable of emitting discharge washing water order, then
It is reintroduced back to clean washing water and carries out washing process.
If " turbidity maximum value (Vmax) number of seconds > turbidity minimum value (V occursmin) number of seconds occurs (as shown in figure 5, water quality is turbid
Degree was gradually increasing by 10 seconds backward, 20 seconds 0 second etc.) ", then it represents that the lotion in washing water (wash clean by such as washing powder, laundry paks
Agent etc.) gradually dissolution or object to be washed (such as clothing or tableware) are also releasing dirty (such as impurity, silt, dust or residue
Deng), then the washing procedure in control system, that is, capable of emitting order for extending wash time.
Water electric conductivity numerical value E (T about washing wateri) comparison analysis:
If " conductivity detecting range/conductivity is averaged matter (Eavg) " x% > 5%, i.e., expression conductivity sensor 13 by
Bubble or impurity in washing water etc. influence, should be by conductivity maximum value (Emax), conductivity minimum value (Emin) excluded, then
Take the second largest value and sub-minimum { conductivity maximum value (E as shown in Figure 6 of conductivitymax) it is about 2620 (us/cm), conductivity minimum
It is worth (Emin) it is about 1800 (us/cm)；Desirable second largest value is about 2500 (us/cm), sub-minimum is about 1850 (us/cm) }, lay equal stress on
The average value and detecting range of new operation conductivity, until " conductivity detecting range/conductivity is averaged matter (Eavg) " x%≤
5%, the conductivity for representing washing water is just gradually reduced.
And as " conductivity maximum value (Emax) number of seconds > conductivity minimum value (E occursmin) number of seconds occurs " when, then it represents that it washes
Agent is gradually dissolved or object to be washed (such as clothing or tableware) is also releasing dirty or impurity etc. (as shown in figure 8, water quality is conductive
Rate was gradually increasing by 10 seconds backward, 20 seconds 0 second etc.), then the washing procedure in control system 11 compares the number of analysis conductivity
After value, the order for extending wash time can be issued.
Numerical value (V is sensed with turbidity againi), conductivity value (Ei) carry out global alignment analysis:
If " (turbidity numerical value (V at presenti)-clear water turbidity value (Vwater)/clear water turbidity numerical value (Vwater)) " x% < 5%,
And " conductivity value (E at presenti)-clear water conductivity values (Ewater) " x% < 5%, then the washing procedure in control system 11 is sentenced
Washing water is determined close to clear water, is represented washing process and has been completed, the washing procedure in control system 11 can make washing process
The judgement of water supply or shortening wash time etc. is terminated in advance or reduced, and then can reach the purpose of energy saving, water-saving.
Above-mentioned " V " represents water turbidity, " Ti" represent detecting time, the total acquisition number of seconds of " N " representative, and 0≤Ti≤ N,
" i " is natural number, and " turbidity detecting range " represents turbidity and detect full-time spacing (such as 20 seconds or 30 seconds etc.), " lead
Electric rate detects range " represent the full-time spacing (such as 20 seconds or 30 seconds etc.) of conductivity detecting.
And it is above-mentioned about turbidity sensing numerical value (Vi), conductivity value (Ei) global alignment analysis can be according to following each comprehensive
Formula is closed to be compared:
Representative symbol definition in each aggregative formula:
(A1) as shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, each time corresponding turbidity, conductivity available functions are expressed as
V(Ti) and E (Ti), wherein 0≤Ti≦N；N is total detecting time, and i is natural number.
(A2) each turbidity and conductivity corresponding time, also using function T (Vi) and T (Ei) indicate, wherein 0≤
Vi、Ei≦3000；And i is natural number.
(A3) clear water turbidity numerical value is VwaterAnd clear water conductivity value is then Ewater。
According to above-mentioned items definition, the formula that the turbidity of washing water, the comprehensive characteristics of conductivity compare analysis is as follows:
(B1) turbidity rises and conductivity rises:
T(Vmax)-T (Vmin)+T(Emax)-T (Emin) > 0.And T (Vmin)+T(Emin) < 6.And 2N-T (Vmax)-T
(Emax) < 6.And Vmax- Vmin> 0.05xVavg.And Emax- Emin> 0.05xEavg。
(B2) turbidity rises and conductivity is constant:
T(Vmax)-T (Vmin) > 0.And T (Vmin) < 3.And N-T (Vmax) < 3.And Vmax- Vmin> 0.05xVavg.And
Emax- Emin≦0.05xEavg。
(B3) turbidity rises and conductivity declines:
{〔T(Vmax)-T (Vmin)〕x〔T(Emax)-T (Emin)) < 0.And T (Vmin)+T(Emax) < 6.And 2N-T
(Vmax)-T (Emin) < 6.And Vmax- Vmin> 0.05xVavg.And Emax- Emin> 0.05xEavg。
(B4) turbidity is constant and conductivity rises:
T(Emax)-T (Emin) > 0.And T (Emin) < 3.And N-T (Emax) < 3.And Emax- Emin> 0.05xEavg.And
Vmax- Vmin≦0.05xEavg。
(B5) turbidity is constant and conductivity is constant:
Emax- Emin≦0.05xEavg.And Vmax- Vmin≦0.05xEavg。
(B6) turbidity is constant and conductivity declines:
T(Emax)-T (Emin) < 0.And T (Emax) < 3.And N-T (Emin) < 3.And Emax- Emin> 0.05xEavg.And
Vmax- Vmin≦0.05xEavg。
(B7) turbidity reduction and conductivity rising:
{〔T(Vmax)-T (Vmin)〕x〔T(Emax)-T (Emin)) < 0.And T (Vmax)+T(Emin) < 6.And 2N-T
(Vmin)-T (Emax) < 6.And Vmax- Vmin> 0.05xVavg.And Emax- Emin> 0.05xEavg。
(B8) turbidity reduction and conductivity is constant:
T(Vmax)-T (Vmin) < 0.And T (Vmax) < 3.And N-T (Vmin) < 3.And Vmax- Vmin> 0.05xVavg.And
Emax- Emin≦0.05xEavg。
(B9) turbidity reduction and conductivity decline:
{〔T(Vmax)-T (Vmin)〕x〔T(Emax)-T (Emin)) < 0.And T (Vmax)+T(Emax) < 6.And 2N-T
(Vmin)-T (Emin) < 6.And Vmax- Vmin> 0.05xVavg.And Emax- Emin> 0.05xEavg。
Washing procedure in above-mentioned control system 11 analyzes the comparison of various turbidity numerical value and conductivity value, can be with
The change of water quality of the clear washing water for distinguishing default household appliances, so that the control system 11 for default household appliances accurately manipulates
The progress of washing process.
When the water quality that turbidity transducer 12, the conductivity sensor 13 of default household appliances detect washing water generates abnormal become
When change, then the comparison analysis of washing water by the formula of exclusion abnormal signal, can be carried out, in which:
(C1) turbidity: if ABS (Vi- Vavg)≧0.3xVavg, then Vi=Vavg。
(C2) conductivity: if ABS (Ei- Eavg)≧0.3xEavg, then Ei=Eavg。
Control system 11 in default household appliances is as follows about the clear water judgment formula of washing water:
(D1) judged with absolute-value sense: Vi- Vwater< 0；And Ei- Ewater< 0.
(D2) judged in a manner of relative value: ABS (Vi- Vwater) < 0.05xVwater；And ABS (Ei- Ewater) <
0.05xEwater.V thereinwaterAnd EwaterThe clear water numerical value recorded by previous washing process.
The clear water that default household appliances can be then detected via above-mentioned turbidity transducer 12, conductivity sensor 13 is special
Sign, and be compared with aforementioned various turbidity numerical value, conductivity value etc., resulting comparison result produces for default household electrical appliances
Product manipulate default household appliances when carrying out laundry operation, through the control system 11 in water quality sensing device 1, to make to preset
Household appliances have the variation executive mode of a variety of washing process, and can be by terminating in advance washing process or reduction water supply etc.
Mode makes the washing mode of default household appliances have a variety of different types washing process selective, and then reaches energy conservation, power saving
Purpose, and environmentally friendly demand can be met.
The foregoing is merely illustrative of the preferred embodiments of the present invention, non-therefore limitation protection scope of the present invention, the present invention
The method for sensing of the household appliances washing water quality of offer is sensed using a water quality inspection apparatus, the water quality sensing device 1 packet
Control system 11, turbidity transducer 12 and conductivity sensor 13 are included, is manipulated by the built-in washing procedure of control system 11 turbid
The washing water quality that sensor 12, conductivity sensor 13 etc. detect default household electrical appliances respectively is spent, turbidity transducer 12, conductivity are passed through
The various numerical value that sensor 13 is sensed so that the washing procedure in control system 11 is compared, and judge washing water
Water quality characteristic terminate in advance or reduce water supply etc. to determine washing process, the activity duration of controllable washing process reaches section
Can, the purpose of power saving, and turbidity, the conductivity of washing water can be sensed respectively by turbidity transducer 12, conductivity sensor 13
Mutation analysis washing water various features, for the washing procedure of control system change it is more kinds of control washing process moulds
Formula has a variety of washing modes, therefore may achieve the structure of foregoing advantages, device such as should all be covered by the present invention, Ci Zhongjian
Easily modification and equivalent structure variation, should all similarly be contained in protection scope of the present invention, Chen Ming is given in conjunction.
Claims (8)
1. a kind of method for sensing of household appliances washing water quality, this method are sensed using a water quality inspection apparatus, water quality is detectd
Surveying device includes control system, turbidity transducer and conductivity sensor, which is characterized in that the method for sensing includes following step
It is rapid:
(a) control system operation turbidity transducer, conductivity sensor first acquire the number of clear water inside household appliances sink respectively
Value, as the baseline values of comparison, and is placed in object and detergent to be cleaned in sink；
(b) turbidity transducer, the water turbidity sensing numerical value of conductivity sensor difference continuous acquisition predetermined number of seconds and conductivity
Sense numerical value；
(c) control system record turbidity sensing numerical value, the conductivity sensing initial value of numerical value, end value, average value, maximum value and
Minimum value；
(d) pre-set programs in control system judge turbidity sensing numerical value, number of seconds occurs for the maximum value of conductivity sensing numerical value, most
Small value occurs number of seconds and senses each numerical value of numerical value total time, becomes sensing numerical characteristics；
(e) turbidity of washing water, conductivity and baseline values are compared respectively for the pre-set programs in control system, point
It Qu get not turbidity sensing numerical value and conductivity sensing numerical value；
(f) pre-set programs in control system sense numerical value and conductivity sensing numerical value again according to resulting washing water turbidity is analyzed
Compared analysis；
(g) pre-set programs in control system judge whether washing process continues, if so, respectively execute step (h), (i),
(j), if not, i.e. step (c) is executed；
(h) water supply of the pre-set programs manipulation washing process in control system decreases or increases, then executes step (c)；Or
(i) time of the pre-set programs manipulation washing process in control system shortens or extends, then executes step (c)；Or
(j) the pre-set programs manipulation washing process in control system terminates.
2. the method for sensing of household appliances according to claim 1 washing water quality, which is characterized in that the step (b) it is pre-
Determining number of seconds is 5~60 seconds.
3. the method for sensing of household appliances washing water quality according to claim 1, which is characterized in that in the step (e),
When the nephelometric analysis of washing water collects " turbidity maximum value occurs number of seconds < turbidity minimum value and number of seconds occurs " and " turbidity maximum value
When number of seconds < 3 " and " total acquisition time-turbidity minimum value time of origin < 3 " occurs, indicate that turbidity successively decreases, washing water is sinking
It forms sediment.
4. the method for sensing of household appliances washing water quality according to claim 3, which is characterized in that if " turbidity detecting is complete
Away from/turbidity average value " x% > 10%, that is, indicate that washing water contains more impurity；If " it is average that turbidity detects range/turbidity
Value " x% < 5%, i.e. expression detergent or object to be washed sufficiently dissolve.
5. the method for sensing of household appliances washing water quality according to claim 1, which is characterized in that the step (e) washing
When the nephelometric analysis of water, if " turbidity maximum value occurs number of seconds > turbidity minimum value and number of seconds occurs ", i.e. expression lotion gradually dissolves
Or object to be cleaned also release it is dirty.
6. the method for sensing of household appliances washing water quality according to claim 1, which is characterized in that washed in the step (e)
When washing the conductivity analysis of water, if " conductivity detects range/turbidity average value " x% > 5%, i.e. expression conductivity sensor
By bubble or impurity effect；And conductivity maximum value, minimum value are excluded, second largest value and sub-minimum are changed to take, then recalculate flat
Mean value and total acquisition time, until " total acquisition time/average value " x%≤5%.
7. the method for sensing of household appliances washing water quality according to claim 1, which is characterized in that washed in the step (e)
When washing the conductivity analysis of water, if " number of seconds occurs for the minimum value that number of seconds > conductivity occurs for the maximum value of conductivity ", indicates to wash
Wash agent gradually dissolve or stay clean object also release it is dirty.
8. the method for sensing of household appliances washing water quality according to claim 1, which is characterized in that the control of the step (f)
Network analysis turbidity processed senses numerical value, conductivity senses numerical value, if " (turbidity-clear water turbidity at present)/clear water turbidity basis number
Value " x% < 5%, and " (conductivity-clear water conductivity at present)/clear water conductivity baseline values " x% < 5%, i.e. judgement are washed
Water is washed close to clear water, and representative is washed journey and completed, then step is executed by the manipulation pre-set programs selection of step (g) control system
(h), (i) or (j).
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| CN109452916A (en) * | 2018-08-15 | 2019-03-12 | 浙江绍兴苏泊尔生活电器有限公司 | Dishwasher and rinsing method thereof |
| CN109276203A (en) * | 2018-09-19 | 2019-01-29 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and dish-washing machine of dish-washing machine |
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| CN112120613A (en) * | 2020-10-22 | 2020-12-25 | 深圳市洁傲智能科技有限公司 | Self-cleaning method and assembly for roller brush of intelligent floor washing machine |
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