CN110226906A - Turbidity detection method and detection system for dish washing machine - Google Patents
Turbidity detection method and detection system for dish washing machine Download PDFInfo
- Publication number
- CN110226906A CN110226906A CN201910573273.8A CN201910573273A CN110226906A CN 110226906 A CN110226906 A CN 110226906A CN 201910573273 A CN201910573273 A CN 201910573273A CN 110226906 A CN110226906 A CN 110226906A
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- turbidity
- dish
- washing machine
- component
- water inlet
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- 238000004851 dishwashing Methods 0.000 title claims abstract description 80
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000008399 tap water Substances 0.000 claims abstract description 19
- 235000020679 tap water Nutrition 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims description 64
- 238000004140 cleaning Methods 0.000 claims description 13
- 238000011897 real-time detection Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 10
- 230000005611 electricity Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction 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
- A47L15/0018—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
- A47L15/0028—Washing phases
-
- 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
Abstract
The invention discloses a turbidity detection method for a dish-washing machine, which specifically comprises the following steps: s1, running water flows into the cavity of the dishwasher through the water inlet component; s2, detecting the initial capacitance c of tap water in the cavity of the dishwasher by the turbidity detection component0(ii) a Wherein, the turbidity detection component is communicated with the cavity of the dish-washing machine; s3, starting the washing function of the dishwasher; s4, detecting the current capacitance c in the cavity of the dish washing machine in real time by the turbidity detection componentt(ii) a S5, calculating the current capacitance value ctAnd an initial capacitance value c0The ratio of (a) to (b) is the current turbidity value; the invention also discloses a turbidity detection system for the dish-washing machine; the invention calculates the current turbidity according to the capacitance value of the solution in the cavity of the dishwasher at the initial moment and the capacitance value at the current moment, thereby avoiding the strict requirement of a turbidity sensor on the detection environment. The method has the advantages of low cost, simplicity, easy implementation, lower requirements on detection conditions and easy popularization.
Description
Technical field
The invention belongs to dish-washing machine technical fields, and in particular to a kind of turbidity detection method and detection system for dish-washing machine
System.
Background technique
Turbidity transducer is a kind of inexpensive sensor for household appliances, is mainly used for the production such as washing machine, dish-washing machine
The measurement of the water dirt degree of product, by measure water dirty degree to judge washing product clean level, so that it is determined that most preferably
Wash time, rinsing times.
However, turbidity transducer has very strict standard, the intensity of light source and temperature to the intensity of light source and temperature
Variation will affect the measurement accuracy of sensor, especially when it is applied on dish-washing machine, the error for measuring appearance can shadow
The clean level of dishes is rung, and then influences human health.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of turbidity detection method for dish-washing machine, according to molten
The capacitance of liquid initial time and the capacitance at current time calculate current turbidity, avoid and use turbidity in conventional method
Strict demand of the sensor to detection environment.
It is a further object of the present invention to provide a kind of Turbidity measurement systems for dish-washing machine.
The technical scheme adopted by the invention is that
A kind of turbidity detection method for dish-washing machine, specifically comprises the following steps:
S1, tap water are flow in dish-washing machine cavity by water inlet component；
S2, the initial capacitance value c of tap water in Turbidity measurement component detection dish-washing machine cavity0；Wherein, the Turbidity measurement
Component is connected to dish-washing machine cavity；
S3 opens the cleaning function of dish-washing machine；
S4, the capacitance present value c of tap water in the Turbidity measurement component real-time detection dish-washing machine cavityt；
S5 calculates the capacitance present value εtWith initial capacitance value ε0Ratio, as current turbidity value.
Preferably, Turbidity measurement component includes ground electrode, turbidity electrode, capacitance measurement chip and reference electricity in the S2
Hold, the ground electrode, turbidity electrode and reference capacitance are connect with capacitance measurement chip, and the ground electrode and turbidity electrode
It is attached on the side wall of dish-washing machine cavity.
Preferably, the Turbidity measurement component further comprises sink, and the sink is connected to and is located at dish-washing machine cavity
Dish-washing machine cavity bottom, the ground electrode and turbidity electrode paste are on the lateral wall of sink.
Preferably, this method further comprises:
S6 carries out the current turbidity value and preset turbidity threshold value for controlling dish-washing machine according to comparing result
Wash number.
Preferably, the wash number of dish-washing machine is controlled in the S6 according to comparing result, specifically:
If the current turbidity value is greater than preset turbidity threshold value, the drain assembly is drained, and draining terminates laggard
Water assembly water inlet continues to clean, until when current turbidity value is less than or equal to preset turbidity threshold value, dishwasher knot
Beam.
A kind of Turbidity measurement system using above-mentioned turbidity detection method comprising water inlet component, drain assembly, turbidity inspection
Component and dish-washing machine ontology are surveyed, the Turbidity measurement component is located at the cavity bottom of dish-washing machine ontology and the two is connected to, described
Tap water is drained to Turbidity measurement component by water inlet component, and the drain assembly is connected to Turbidity measurement component for arranging water
Out.
Preferably, which further comprises controller, the controller respectively with water inlet component, the row
Water assembly and the connection of Turbidity measurement component, the controller are used to control dish-washing machine according to the testing result of Turbidity measurement component
Wash number.
Preferably, the drain assembly is located at the minimum point of the Turbidity measurement component.
Preferably, the water inlet component includes water inlet pipe and inlet water solenoid valve, and inlet water solenoid valve is arranged on water inlet pipe.
Preferably, the drain assembly includes drainpipe and draining pump, and draining pump is arranged on drainpipe.
Compared with prior art, capacitance and current time of the present invention according to solution initial time in dish-washing machine cavity
Capacitance calculate current turbidity, avoid using turbidity transducer to detection environment strict demand.This method is at low cost,
It is simple and easy and lower to testing conditions requirement, it is easy to spread.
Detailed description of the invention
Fig. 1 is that the embodiment of the present invention 1 provides a kind of flow chart of turbidity detection method for dish-washing machine；
Fig. 2 is that the embodiment of the present invention 1 provides a kind of knot of Turbidity measurement component in the turbidity detection method for dish-washing machine
Structure schematic diagram；
Fig. 3 is that the embodiment of the present invention 1 provides a kind of ground of Turbidity measurement component in the turbidity detection method for dish-washing machine
The capacitor equivalent figure of electrode and turbidity electrode；
Fig. 4 is that the embodiment of the present invention 1 provides a kind of circuit diagram of SOP8 encapsulation in the turbidity detection method for dish-washing machine；
Fig. 5 is that the embodiment of the present invention 2 provides a kind of structural schematic diagram of Turbidity measurement system for dish-washing machine.
Appended drawing reference is as follows:
1. water inlet component, 2. drain assemblies, 3. Turbidity measurement components, 4. dish-washing machine ontologies, 11. water inlet pipes, 12. water inlet electricity
Magnet valve, 21. drainpipes, 22. draining pumps, 31. ground electrodes, 32. turbidity electrodes, 33. capacitance measurement chips, 34. reference capacitances,
35. sink.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
The embodiment of the present invention 1 provides a kind of turbidity detection method for dish-washing machine, as shown in Figure 1, specifically including as follows
Step:
S1, tap water are flow in dish-washing machine cavity by water inlet component 1；
With including water inlet pipe 11 and inlet water solenoid valve 12, inlet water solenoid valve 12 is arranged on water inlet pipe 11 water inlet component 1, into
Water pipe 11 is connected to the cavity of dish-washing machine, when in use, water inlet pipe 11 and dish-washing machine cavity is controlled by inlet water solenoid valve 12
On-off；
S2, Turbidity measurement component 3 detect the initial capacitance c of tap water in dish-washing machine cavity0Value；Wherein, the turbidity inspection
Component 3 is surveyed to be connected to dish-washing machine cavity；
As shown in Fig. 2, Turbidity measurement component 3 include ground electrode 31, turbidity electrode 32, capacitance measurement chip 33, with reference to electricity
Appearance 34 and sink 35, ground electrode 31, turbidity electrode 32 and reference capacitance 34 are connect with capacitance measurement chip 33, and ground electricity
Pole 31 and turbidity electrode 32 are attached on the lateral wall of sink 35；
As shown in figure 3, ground electrode 31, turbidity electrode 32 are equivalent to two pole plates of capacitor, and reference capacitance 34 and
Capacitance measurement chip 33 can form the measuring circuit for being functionally equivalent to capacitor；
As shown in figure 4, capacitance measurement chip 33 preferentially encapsulates chip using SOP8, but it is not limited to SOP8 encapsulation chip；
S3 opens the cleaning function of dish-washing machine；
After tap water injects dish-washing machine cavity, and after having been detected by the capacitor of tap water, dish-washing machine can be just opened
Cleaning function；
S4, the capacitance present value c of tap water in 3 real-time detection dish-washing machine cavity of Turbidity measurement componentt；
S5 calculates capacitance present value ctWith initial capacitance value c0Ratio, as current turbidity；Specifically:
The turbidity for defining clear water (not opening tap water when dishwasher function) is level-one, i.e. ctWith c0Ratio be
1；With the progress that dishwasher works, capacitance present value ctBecome larger, capacitance present value ctIt is twice of clear water moment capacitor
When, then ctWith c0Ratio be 2, at this time turbidity be second level, and so on；
In addition, the variation of turbidity can cause the variation of water quality dielectric constant, and capacitor and dielectric are normal in actual measurement
Several relational expressions is as follows:
In above formula, as shown in figure 3, S is the coupling area of ground electrode 31 and turbidity electrode 32, d is ground electrode 31 and turbidity
The distance between electrode 32, ε are dielectric constant, and c is capacitor；
The concrete meaning of coupling area are as follows: the overlapping area of ground electrode 31 and turbidity electrode 32.
Since coupling area S and distance d are fixed value, the variation of dielectric constant is embodied in the variation of capacitance
On, the variation of capacitor can react the variation of turbidity.
S6 compares the current turbidity value and preset turbidity threshold value, and the drain assembly is drained, draining
After water inlet component water inlet continue to clean, until current turbidity value be less than or equal to preset turbidity threshold value when, wash the dishes
Machine cleaning terminates；Specifically:
Turbidity threshold value can be set as needed, and turbidity threshold value is lower, then higher to the requirement of cleaning；When current turbidity
When greater than preset turbidity threshold value, drain assembly 2 exhausts water, is passed through clean tap water by water inlet component 1 later and continues
It is cleaned；When current turbidity is less than or equal to preset turbidity threshold value, it was demonstrated that the dishes in dish-washing machine is cleaned dry
Only, the cleaning function of dish-washing machine is closed at this time；In this way reasonable arrangement wash number and time, it both ensure that and wash
Effect is washed, and has accomplished water-saving and electricity-saving.
In addition, in the present embodiment, Turbidity measurement component 3 can also prevent to wash the dishes compared to traditional turbidity transducer
Machine is dry-cleaned in anhydrous situation, when dish-washing machine breaks down or water is not added, the electricity of the detection of Turbidity measurement component 3
Appearance will appear tens times, or even at hundred times of jump；Therefore, when capacitor jumps, user should check in time and wash the dishes
Whether there is water in machine.
The present embodiment is calculated according to the capacitance and the capacitance at current time of solution initial time in dish-washing machine cavity
Current turbidity out avoids the strict demand using turbidity transducer to detection environment；Also, Turbidity measurement component can also be pre-
Anti- dish-washing machine is dry-cleaned in anhydrous situation.
Embodiment 2
The embodiment of the present invention 2 provides a kind of Turbidity measurement system for dish-washing machine, the turbidity inspection in Application Example 1
Survey method, as shown in Figure 5:
It includes water inlet component 1, drain assembly 2, Turbidity measurement component 3 and dish-washing machine ontology 4, in which:
The Turbidity measurement component 3 is located at the cavity bottom of dish-washing machine ontology 4 and the two is connected to, and the water inlet component 1 will
Tap water is drained to Turbidity measurement component 3, and the drain assembly 2 is connected to Turbidity measurement component 3 for water to be discharged；
In this way, using the above structure, tap water passes through water inlet component 1 first and flow in dish-washing machine ontology 4, Turbidity measurement group
Part 3 detects the capacitor c of current tap water0, the cleaning function of dish-washing machine is opened later；3 real-time detection of Turbidity measurement component washes the dishes
The capacitance present c of solution in machine ontology 4t, ctWith c0Ratio, as current turbidity.
The Turbidity measurement system further comprises controller, the controller respectively with water inlet component 1, drain assembly 2 with
And Turbidity measurement component 3 connects, the controller is used to control the cleaning of dish-washing machine according to the testing result of Turbidity measurement component 3
Number；
Specifically, controller carries out current turbidity and preset turbidity threshold value for if current turbidity is greater than preset
Turbidity threshold value, drain assembly 2 exhaust water, are passed through clean tap water by water inlet component 1 later and continue to clean；When working as
When preceding turbidity is less than or equal to preset turbidity threshold value, it was demonstrated that the dishes in dish-washing machine has cleaned up, and closes wash at this time
The cleaning function of bowl machine.
In order to guarantee noresidue liquid in dish-washing machine cavity, the minimum of Turbidity measurement component 3 is arranged in drain assembly 2
Point.
In addition, water inlet component 1 includes water inlet pipe 11 and inlet water solenoid valve 12, inlet water solenoid valve 12 is arranged in water inlet pipe 11
On, controller controls the connection situation of water inlet pipe 11 and dish-washing machine ontology 4 by inlet water solenoid valve 12；
Drain assembly 2 includes drainpipe 21 and draining pump 22, and draining pump 22 is arranged on drainpipe 21, and controller passes through row
Water pump 22 realizes drain function.
The present embodiment realizes the real-time detection to turbidity by the setting Turbidity measurement component below dish-washing machine ontology,
It avoids using the biggish water cleaning dishes of turbidity, while also avoiding dishes and having cleaned up but also continued caused by cleaning
The wasting of resources.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of turbidity detection method for dish-washing machine, which is characterized in that specifically comprise the following steps:
S1, tap water are flow in dish-washing machine cavity by water inlet component；
S2, the initial capacitance value c of tap water in Turbidity measurement component detection dish-washing machine cavity0；Wherein, the Turbidity measurement component
It is connected to dish-washing machine cavity；
S3 opens the cleaning function of dish-washing machine；
S4, the intracorporal capacitance present value c of Turbidity measurement component real-time detection dish-washing machine chambert；
S5 calculates the capacitance present value ctWith initial capacitance value c0Ratio, as current turbidity value.
2. a kind of turbidity detection method for dish-washing machine according to claim 1, which is characterized in that turbidity in the S2
Detection components (3) include ground electrode (31), turbidity electrode (32), capacitance measurement chip (33) and reference capacitance (34), described
Ground electrode (31), turbidity electrode (32) and reference capacitance (34) are connect with capacitance measurement chip (33), the ground electrode
(31) it is attached on the side wall of dish-washing machine cavity with turbidity electrode (32).
3. a kind of turbidity detection method for dish-washing machine according to claim 2, which is characterized in that the Turbidity measurement
Component (3) further comprises sink (35), and the sink (35) is connected to dish-washing machine cavity and is located at dish-washing machine cavity bottom, institute
It states ground electrode (31) and turbidity electrode (32) is attached on the lateral wall of sink (35).
4. a kind of turbidity detection method for dish-washing machine according to claim 1, which is characterized in that this method is further
Include: S6, the current turbidity value and preset turbidity threshold value are compared, the cleaning of dish-washing machine is controlled according to comparing result
Number.
5. a kind of turbidity detection method for dish-washing machine according to claim 4, which is characterized in that basis in the S6
Comparing result controls the wash number of dish-washing machine, specifically:
If the current turbidity value is greater than preset turbidity threshold value, the drain assembly is drained, water inlet group after draining
Part water inlet continues to clean, until dishwasher terminates when current turbidity value is less than or equal to preset turbidity threshold value.
6. a kind of Turbidity measurement system of the turbidity detection method using any one of claim 1-5, which is characterized in that it includes
Water inlet component (1), drain assembly (2), Turbidity measurement component (3) and dish-washing machine ontology (4), the Turbidity measurement component (3)
Cavity bottom and the two positioned at dish-washing machine ontology (4) are connected to, and tap water is drained to Turbidity measurement group by the water inlet component (1)
Part (3), the drain assembly (2) are connected to Turbidity measurement component (3) for water to be discharged.
7. a kind of Turbidity measurement system for dish-washing machine according to claim 8, which is characterized in that the Turbidity measurement system
System further comprises controller, the controller respectively with water inlet component (1), the drain assembly (2) and Turbidity measurement group
Part (3) connection, the controller are used to control the wash number of dish-washing machine according to the testing result of Turbidity measurement component (3).
8. a kind of Turbidity measurement system for dish-washing machine according to claim 6 or 7, which is characterized in that the draining
Component (2) is located at the minimum point of the Turbidity measurement component (3).
9. a kind of Turbidity measurement system for dish-washing machine according to claim 8, which is characterized in that the water inlet component
It (1) include water inlet pipe (11) and inlet water solenoid valve (12), inlet water solenoid valve (12) is arranged on water inlet pipe (11).
10. a kind of Turbidity measurement system for dish-washing machine according to claim 9, which is characterized in that the draining group
Part (2) includes drainpipe (21) and draining pump (22), and draining pump (22) is arranged on drainpipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573273.8A CN110226906A (en) | 2019-06-28 | 2019-06-28 | Turbidity detection method and detection system for dish washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910573273.8A CN110226906A (en) | 2019-06-28 | 2019-06-28 | Turbidity detection method and detection system for dish washing machine |
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| Publication Number | Publication Date |
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| CN110226906A true CN110226906A (en) | 2019-09-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879284A (en) * | 2019-12-02 | 2020-03-13 | 上海秒针网络科技有限公司 | Water quality detection method and device, storage medium and electronic device |
| CN113384208A (en) * | 2021-06-16 | 2021-09-14 | 华帝股份有限公司 | Residue treatment assembly of dish washing machine, residue treatment method and dish washing machine |
| CN113384209A (en) * | 2021-06-18 | 2021-09-14 | 华帝股份有限公司 | Dish washing machine and control method thereof |
| CN114271753A (en) * | 2021-12-17 | 2022-04-05 | 华帝股份有限公司 | Dishwasher washing method and dishwasher |
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