CN101919656B - Liquid level detection method of soymilk machine - Google Patents
Liquid level detection method of soymilk machine Download PDFInfo
- Publication number
- CN101919656B CN101919656B CN2010102397898A CN201010239789A CN101919656B CN 101919656 B CN101919656 B CN 101919656B CN 2010102397898 A CN2010102397898 A CN 2010102397898A CN 201010239789 A CN201010239789 A CN 201010239789A CN 101919656 B CN101919656 B CN 101919656B
- Authority
- CN
- China
- Prior art keywords
- level
- liquid level
- making machine
- electrode
- bean milk
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 235000013322 soy milk Nutrition 0.000 title abstract 8
- 235000010469 Glycine max Nutrition 0.000 claims abstract description 41
- 244000068988 Glycine max Species 0.000 claims abstract description 41
- 235000013336 milk Nutrition 0.000 claims abstract description 41
- 239000008267 milk Substances 0.000 claims abstract description 41
- 210000004080 milk Anatomy 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002002 slurry Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Images
Abstract
The invention relates to a liquid level detection method of a soymilk machine, comprising the following steps that: (1) a processor outputs low level to a liquid level electrode of a detection circuit and then waits for a time of t1; (2) the processor detects the potential of the liquid level electrode; (3) the processor judges the height of a liquid level inside a cup body of the soymilk machineaccording to the detected potential of the liquid level electrode, wherein the liquid level inside the cup body of the soymilk machine is judged to be lower than a lowest detecting point of the liquid level electrode when the potential of the liquid level electrode is at high level, therefore the soymilk machine stops working; and the liquid level inside the cup body of the soymilk machine is judged to be higher than the lowest detecting point of the liquid level electrode when the potential of the liquid level electrode is at the low level, therefore the soymilk machine continues to work. The processor outputs the low level to the liquid level electrode before detecting the potential of the liquid level electrode so as to be equivalent to discharge soybean milk inside the cup body of thesoymilk machine, therefore the abnormal halt of the soymilk machine, which is caused by erroneous judgment, can be prevented, and liquid level detection is safer and more reliable.
Description
Technical field
The present invention relates to a kind of liquid-level detecting method, relate in particular to a kind of liquid-level detecting method of soy bean milk making machine.
Background technology
The soy bean milk making machine of selling on the market at present, generally all has detection and liquid level detection.As shown in Figure 1, testing circuit is design like this: level electrode SW is connected with power Vcc through resistance R 2, and is connected to the I/O mouth of processor through resistance R 1.When in the soy bean milk making machine cup water being arranged, level electrode SW is through water ground connection, and the current potential that this moment, processor can detect level electrode SW is low level; When in the soy bean milk making machine cup when anhydrous, level electrode SW is earth-free, and testing circuit breaks off, and the current potential that this moment, processor can detect level electrode SW is high level.
But in the Level Detection process, power Vcc can be charged to the liquid in the cup.After after a while, the electromotive force of liquid can rise; When the electromotive force of liquid rises to a certain degree, even cause under the situation that water is arranged in the cup, the current potential that processor possibly detect level electrode is high level.This just causes the erroneous judgement of processor, will cause the soy bean milk making machine disorderly closedown.
Summary of the invention
Technical matters to be solved by this invention provides a kind of liquid-level detecting method of safe and reliable soy bean milk making machine.
In order to solve above technical matters, the liquid-level detecting method of soy bean milk making machine of the present invention may further comprise the steps: (1). processor is to the level electrode output low level in the testing circuit, and after output low level stand-by period t1; (2). said processor detects the current potential of level electrode; (3). said processor is judged the height of liquid level in the said soy bean milk making machine cup according to the current potential of detected level electrode; When the current potential of said level electrode is in high level, be judged to be liquid level in the said soy bean milk making machine cup and be lower than the minimum sensing point of said level electrode, then soy bean milk making machine quits work; When the current potential of said level electrode is in low level, be judged to be liquid level in the said soy bean milk making machine cup and be higher than the minimum sensing point of said level electrode, then soy bean milk making machine works on.
As a kind of preferred scheme, said processor is t2 to the time of said level electrode output low level, and the time of said detection level electrode current potential is t3, and t2＞t3.
As a kind of preferred scheme, t2≤1 second.
As a kind of preferred scheme, said processor is 200 milliseconds to the time t2 of said level electrode output low level.
As a kind of preferred scheme, the time t3 of said detection level electrode current potential is 20 milliseconds.
Because power supply can charge to the liquid in the cup in the Level Detection process; Cause the current potential of liquid in the cup to rise; When the electromotive force of liquid rises to a certain degree, even the liquid level in the cup is higher than the minimum sensing point of level electrode, CPU also possibly detect high level; Thereby cause the CPU erroneous judgement to be lower than the minimum sensing point of level electrode, thereby cause the disorderly closedown of soy bean milk making machine for the liquid level in the cup.Through processor before detecting the current potential of level electrode to said level electrode output low level; Be equivalent to the slurries in the soy bean milk making machine cup are discharged; Can avoid causing the disorderly closedown of soy bean milk making machine, make the Level Detection of soy bean milk making machine more safe and reliable owing to the erroneous judgement that previous reasons causes.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description:
Fig. 1 is to use in the synoptic diagram of the testing circuit of the liquid-level detecting method of soy bean milk making machine of the present invention.
Embodiment
As shown in Figure 1, the testing circuit that is used in liquid-level detecting method of the present invention is design like this: level electrode SW is connected with power Vcc through resistance R 2, and is connected to the I/O mouth of processor (CPU) through resistance R 1.When in the soy bean milk making machine cup water being arranged, level electrode SW is through water ground connection; When in the soy bean milk making machine cup when anhydrous, level electrode SW is earth-free, and liquid level detection circuit breaks off.The liquid-level detecting method of soy bean milk making machine of the present invention may further comprise the steps: (1). processor is to the level electrode output low level in the testing circuit, and after output low level stand-by period t1; (2). said processor detects the current potential of level electrode; (3). said processor is judged the height of liquid level in the said soy bean milk making machine cup according to the current potential of detected level electrode; When the current potential of said level electrode is in high level, be judged to be liquid level in the said soy bean milk making machine cup and be lower than the minimum sensing point of said level electrode, then soy bean milk making machine quits work; When the current potential of said level electrode is in low level, be judged to be liquid level in the said soy bean milk making machine cup and be higher than the minimum sensing point of said level electrode, then soy bean milk making machine works on.
Preferably, said processor is t2 to the time of said level electrode output low level, and the time of said detection level electrode current potential is t3, and t2＞t3.
Preferably, t2≤1 second.
Preferably, said processor is 200 milliseconds to the time t2 of said level electrode output low level.
Preferably, the time t3 of said detection level electrode current potential is 20 milliseconds.
Because power supply can charge to the liquid in the cup in the Level Detection process; Cause the current potential of liquid in the cup to rise; When the electromotive force of liquid rises to a certain degree, even the liquid level in the cup is higher than the minimum sensing point of level electrode, CPU also possibly detect high level; Thereby cause the CPU erroneous judgement to be lower than the minimum sensing point of level electrode, thereby cause the disorderly closedown of soy bean milk making machine for the liquid level in the cup.Through processor before detecting the current potential of level electrode to said level electrode output low level; Be equivalent to the slurries in the soy bean milk making machine cup are discharged; Can avoid causing the disorderly closedown of soy bean milk making machine, make the Level Detection of soy bean milk making machine more safe and reliable owing to the erroneous judgement that previous reasons causes.
Needing ben is that protection scope of the present invention comprises but is not limited to above-mentioned embodiment.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some distortion and improvement, these also should be regarded as and belong to protection scope of the present invention.
Claims (5)
1. the liquid-level detecting method of a soy bean milk making machine may further comprise the steps:
(1). processor is to the level electrode output low level in the testing circuit, and after output low level stand-by period t1;
(2). said processor detects the current potential of level electrode;
(3). said processor is judged the height of liquid level in the said soy bean milk making machine cup according to the current potential of detected level electrode; When the current potential of said level electrode is in high level, be judged to be liquid level in the said soy bean milk making machine cup and be lower than the minimum sensing point of said level electrode, then soy bean milk making machine quits work; When the current potential of said level electrode is in low level, be judged to be liquid level in the said soy bean milk making machine cup and be higher than the minimum sensing point of said level electrode, then soy bean milk making machine works on.
2. the liquid-level detecting method of soy bean milk making machine according to claim 1 is characterized in that, said processor is t2 to the time of said level electrode output low level, and the time of said detection level electrode current potential is t3, and t2＞t3.
3. the liquid-level detecting method of soy bean milk making machine according to claim 2 is characterized in that, t2≤1 second.
4. the liquid-level detecting method of soy bean milk making machine according to claim 3 is characterized in that, said processor is 200 milliseconds to the time t2 of said level electrode output low level.
5. the liquid-level detecting method of soy bean milk making machine according to claim 3 is characterized in that, the time t3 of said detection level electrode current potential is 20 milliseconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102397898A CN101919656B (en) | 2010-07-29 | 2010-07-29 | Liquid level detection method of soymilk machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102397898A CN101919656B (en) | 2010-07-29 | 2010-07-29 | Liquid level detection method of soymilk machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101919656A CN101919656A (en) | 2010-12-22 |
| CN101919656B true CN101919656B (en) | 2012-07-11 |
Family
ID=43335085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102397898A Active CN101919656B (en) | 2010-07-29 | 2010-07-29 | Liquid level detection method of soymilk machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101919656B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987736B (en) * | 2015-02-28 | 2019-03-08 | 佛山市顺德区美的电热电器制造有限公司 | Water level detection circuit, water level detecting and self checking method and device |
| CN109394020B (en) * | 2018-11-21 | 2022-06-28 | 九阳股份有限公司 | Water level detection method of food processor |
| CN110974029B (en) * | 2019-11-07 | 2022-03-15 | 九阳股份有限公司 | Cooking utensil control method based on water level detection of water tank |
| CN112683360A (en) * | 2020-12-22 | 2021-04-20 | 苏州简管家物联技术有限公司 | Method for switching working modes of liquid level detection equipment |
| CN113892873B (en) * | 2021-10-19 | 2023-01-10 | 北京顺造科技有限公司 | Wet surface cleaning equipment and charging and discharging liquid level detection method of wet surface cleaning equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6148666A (en) * | 1997-10-29 | 2000-11-21 | Boehringer Mannheim Gmbh | Method and device for liquid transfer with an analysis apparatus |
| CN2472203Y (en) * | 2001-03-22 | 2002-01-16 | 王晓峰 | Level sensor |
| CN1595075A (en) * | 2004-06-18 | 2005-03-16 | 李虬 | Water level measuring apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009019888A (en) * | 2007-07-10 | 2009-01-29 | Panasonic Corp | Liquid level detection sensor |
-
2010
- 2010-07-29 CN CN2010102397898A patent/CN101919656B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6148666A (en) * | 1997-10-29 | 2000-11-21 | Boehringer Mannheim Gmbh | Method and device for liquid transfer with an analysis apparatus |
| CN2472203Y (en) * | 2001-03-22 | 2002-01-16 | 王晓峰 | Level sensor |
| CN1595075A (en) * | 2004-06-18 | 2005-03-16 | 李虬 | Water level measuring apparatus |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-19888A 2009.01.29 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101919656A (en) | 2010-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101919656B (en) | Liquid level detection method of soymilk machine | |
| CN104348141B (en) | A kind of overcurrent-overvoltage protecting circuit and method for electronic cigarette | |
| EP2511720A3 (en) | Fault detection device and method for electrical appliance | |
| CN201489075U (en) | GPS active antenna on-off detection device | |
| CN103908159B (en) | Quick defoaming method for soybean milk machine | |
| CN107069850B (en) | System and method for falling protection and reverse connection protection of automobile starting power supply jointing clamp | |
| WO2016078536A1 (en) | Receptacle capable of detecting external leakage voltage | |
| CN202849828U (en) | Iron steam station and electric iron with the same | |
| CN105572593B (en) | device and method for detecting battery in place and charging system | |
| CN102636709B (en) | Circuit capable of fast recognizing types of chargers and recognizing method for circuit | |
| CN106602633A (en) | Electric toothbrush and wireless charging control method thereof | |
| CN102168668A (en) | Circuit system for intelligent water pump | |
| CN103292862A (en) | Water level detection circuit based on capacitance principle | |
| CN202693070U (en) | Double-probe electric water level sensor | |
| CN104596665A (en) | Method for detecting battery temperature during charging | |
| CN102467134A (en) | Automatic water level controller of water tower and control method thereof | |
| CN204989361U (en) | Connector breaks away from detection device | |
| CN208062858U (en) | A kind of electric power management circuit for hand-held equipment | |
| CN107819253A (en) | A kind of smart jack | |
| CN203376433U (en) | Electric leakage detection circuit | |
| CN203074335U (en) | Coffee machine electronic control device with water level infrared detection | |
| CN110109792A (en) | USB device plug-pull detecting circuit under a kind of operating system off-line state | |
| CN202166153U (en) | Water-shortage protection device for humidifier or fumigating machine | |
| CN205374643U (en) | Sensor security detection circuitry is put in office | |
| CN202661602U (en) | Circuit for detecting multi-motor work of soymilk machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Huaiyin District of Ji'nan City, Shandong Province, 250118 US 999 miles Patentee after: JOYOUNG Co.,Ltd. Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: JOYOUNG Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |