CN103017853A - Water level probe with self-checking function and self-checking method of water level probe - Google Patents
Water level probe with self-checking function and self-checking method of water level probe Download PDFInfo
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- CN103017853A CN103017853A CN2011102799918A CN201110279991A CN103017853A CN 103017853 A CN103017853 A CN 103017853A CN 2011102799918 A CN2011102799918 A CN 2011102799918A CN 201110279991 A CN201110279991 A CN 201110279991A CN 103017853 A CN103017853 A CN 103017853A
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Abstract
The invention discloses a water level probe with a self-checking function and a self-checking method of the water level probe. The water level probe is provided with a self-checking water casing pipe; in self checking, the self-checking casing pipe is filled with water and is used for checking a working state of the water level probe; self checking is executed before a main control circuit works, and the self-checking water casing pipe of the water level probe is injected with water automatically; meanwhile, within the set time, if a state that signals are fed back by the electrodes of the water level probe to a singlechip does not conform to the preset program, the water level probe is judged to be in fault; and if the state that signals are fed back by outer shell electrodes of the water level probe to the singlechip conforms to the preset program, the water level probe is judged to be normal.
Description
Technical field
The present invention relates to water level automatically control and applied technical field thereof, relate in particular to the water-level probe of self-checking function and the self checking method of water-level probe.
Background technology
Existing water level auto control system adopts water-level probe to come sensed water level more, in the actual use procedure, because water-level probe is in the working environment of high temperature humidity all the time, the probability that breaks down is higher, after breaking down, water-level probe will cause water level auto control system malfunctioning, cause Chang Jiashui or do not add the water phenomenon to produce, affect the normal function of system.
Summary of the invention
In order to improve the problems referred to above, the invention provides a kind of with the water-level probe of self-checking function and the self checking method of water-level probe, technical thought of the present invention mainly is: a kind of with the water-level probe of self-checking function and the self checking method of water-level probe, water-level probe is with a self check jacket pipe, when self check, be full of water in the sleeve pipe for detection of water-level probe electrode duty, main control circuit is carried out first self-check program before beginning water level control work, by the self check jacket pipe water filling of Automatic control of single chip microcomputer solenoid valve to the water level probe, the duty of water-level probe when simultaneously detecting by single-chip microcomputer 1 that water level reaches the water-level probe probe in the self check jacket pipe, if at a time t(who sets greater than the required time that rises to water-level probe probe 7 from opening entering water electromagnetic valve 2 to self check jacket pipe 9 interior water levels) in, water-level probe shell electrode feeds back corresponding electric signal and is not inconsistent to state and the pre-set programs of single-chip microcomputer, judge that then water-level probe breaks down, quit work and report to the police; In the time t that sets, water-level probe shell electrode feeds back corresponding electric signal and conforms to pre-set programs to the state of single-chip microcomputer, judges that then water-level probe is working properly, and single-chip microcomputer sends corresponding signal to main control circuit, and main control circuit begins normal operation.Compared with prior art such benefit is can initiatively judge the duty of water-level probe before water-level control circuit work and take corresponding measure, avoids because the water-level probe fault causes that water level auto control system is malfunctioning, increases the reliability of system.
For achieving the above object, the present invention has adopted following technical scheme:
One or more water-level probes with the self check jacket pipe (herein with a water-level probe explanation principle of work) have freeing port and water-level probe probe working water level to detect mouth on the self check jacket pipe.
A single-chip microcomputer and a control circuit board are used for realization to the automatic control of water-level probe self-check program.
An entering water electromagnetic valve is for cooperate water inlet opportunity and the amount of inlet water of automatically controlling in the self check jacket pipe with single-chip microcomputer.
Self check jacket pipe freeing port bore detects mouthful less than water-level probe probe working water level, when guaranteeing the entering water electromagnetic valve water inlet in setting-up time t in the self check jacket pipe water potential rise to more than the water-level probe probe location.
A water level self check sleeve pipe water inlet pipe is for water filling in water-level probe self check sleeve pipe.
Description of drawings
Fig. 1 is inner structure of the present invention and electric theory diagram.
The above-mentioned not shown and incoherent parts of the present invention, the corresponding parts of each label are respectively: 1, single-chip microcomputer; 2, entering water electromagnetic valve; 3, self check jacket pipe water inlet pipe; 4, self check jacket pipe freeing port; 5, main control circuit; 6, water-level probe shell electrode; 7, water-level probe probe; 8, water-level probe probe working water level detects mouth; 9, self check jacket pipe.
Embodiment
Be described further below in conjunction with 1 pair of the specific embodiment of the present invention of accompanying drawing.
The implementation step: main control circuit 5 carry out water level automatically control work before circuit sending signal by being connected to single-chip microcomputer 1 to single-chip microcomputer 1, single-chip microcomputer 1 begins to carry out self-check program according to default program:
The first step: single-chip microcomputer 1 sends to water level probe tip 7 by the circuit that is connected to water-level probe probe 7 and detects electric signal, the circuit that while sensed water level probing shell electrode 6 is connected to single-chip microcomputer 1 has or not the feedback electric signal, there is feedback signal to pass back if receive water-level probe shell electrode 6 this moment, judge that water-level probe has short trouble, quit work and report to the police, do not have feedback signal as receiving water-level probe shell electrode 6 this moment, judges that water-level probe is working properly, carries out next step detection.
Second step: single-chip microcomputer 1 is opened by the circuit control entering water electromagnetic valve 2 that is connected to entering water electromagnetic valve 2, to 9 water fillings of water-level probe self check jacket pipe, at the time t(that sets greater than rising to water-level probe probe 7 required times from opening entering water electromagnetic valve 2 to self check jacket pipe 9 interior water levels) in, water-level probe shell electrode 6 does not have electric signal to feed back to single-chip microcomputer 1, judge that water-level probe breaks down, quit work and report to the police; If in the time t that sets, water-level probe shell electrode 6 has electric signal to feed back to single-chip microcomputer 1, judges that then corresponding water-level probe is working properly, carry out further work.
The 3rd step: single-chip microcomputer 1 cuts out by the circuit control entering water electromagnetic valve 2 that is connected to entering water electromagnetic valve 2, remaining water in the self check jacket pipe is discharged automatically from self check jacket pipe freeing port, single-chip microcomputer 1 sends corresponding signal to main control circuit 5 by the circuit that is connected to main control circuit 5, self-check program is finished, main control circuit 5 beginning normal operations.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (8)
1. fault self-checking method with water-level probe and the water-level probe of self-checking function, it is characterized in that: water-level probe is with a self check jacket pipe (9), when self check, be full of water in the self check jacket pipe (9) for detection of water-level probe electrode duty, carry out first self-check program before main control circuit (5) work, controlled self check jacket pipe (9) water flowing of popping one's head in to water level by single-chip microcomputer (1), the duty of water-level probe when the interior water level of single-chip microcomputer (1) detection self check jacket pipe (9) reaches water-level probe probe (7), if in a time t who sets, the corresponding electric signal of water-level probe shell electrode (6) feedback is not inconsistent to state and the pre-set programs of single-chip microcomputer (1), judge that then corresponding water-level probe breaks down, and quits work and reports to the police; If in a time t who sets, the corresponding electric signal of water-level probe shell electrode (6) feedback conforms to pre-set programs to the state of single-chip microcomputer (1), judge that then corresponding water-level probe is working properly, single-chip microcomputer sends corresponding signal to main control circuit (5), main control circuit (5) beginning normal operation.
2. the fault self-checking method of described water-level probe and water-level probe with self-checking function according to claim 1 is characterized in that water-level probe installed self check jacket pipe (9).
3. the fault self-checking method of described water-level probe and water-level probe with self-checking function according to claim 1 is characterized in that water-level probe installed self check jacket pipe water inlet pipe (3).
4. the fault self-checking method of described water-level probe and water-level probe with self-checking function according to claim 1 is characterized in that water-level probe installed entering water electromagnetic valve (2).
5. the fault self-checking method of described water-level probe and water-level probe with self-checking function according to claim 1, it is characterized in that water-level probe installed self check jacket pipe freeing port (4), the freeing port bore is less than the bore of water-level probe probe operation detection mouth (8).
6. the fault self-checking method of described water-level probe and water-level probe with self-checking function according to claim 1, it is characterized in that: these self checking method concrete steps are: main control circuit (5) carry out water level automatically control work before circuit sending signal by being connected to single-chip microcomputer 1 to single-chip microcomputer (1), single-chip microcomputer (1) begins to carry out self-check program according to default program:
The first step: single-chip microcomputer (1) sends to water level probe tip (7) by the circuit that is connected to water-level probe probe (7) and detects electric signal, the circuit that while sensed water level probing shell electrode (6) is connected to single-chip microcomputer (1) has or not the feedback electric signal, there is feedback signal to pass back if receive water-level probe shell electrode (6) this moment, judge that water-level probe has short trouble, quit work and report to the police, do not have feedback signal as receiving water-level probe shell electrode (6) this moment, judge that water-level probe is working properly, carry out next step detection.
7. second step: single-chip microcomputer (1) is opened by the circuit control entering water electromagnetic valve (2) that is connected to entering water electromagnetic valve (2), to water-level probe self check jacket pipe (9) water filling, in the time t that sets, the time t that sets is greater than the required time that rises to water-level probe probe (7) from opening entering water electromagnetic valve (2) to the interior water level of self check jacket pipe (9), if water-level probe shell electrode (6) does not have electric signal to feed back to single-chip microcomputer (1), judge that water-level probe breaks down, quit work and report to the police; If in the time t that sets, water-level probe shell electrode 6 has electric signal to feed back to single-chip microcomputer (1), judges that then corresponding water-level probe is working properly, carry out further work.
8. the 3rd go on foot: single-chip microcomputer (1) cuts out by the circuit control entering water electromagnetic valve (2) that is connected to entering water electromagnetic valve (2), remaining water in the self check jacket pipe is discharged automatically from self check jacket pipe freeing port, single-chip microcomputer (1) sends corresponding signal to main control circuit (5) by the circuit that is connected to main control circuit (5), and self-check program is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102799918A CN103017853A (en) | 2011-09-20 | 2011-09-20 | Water level probe with self-checking function and self-checking method of water level probe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102799918A CN103017853A (en) | 2011-09-20 | 2011-09-20 | Water level probe with self-checking function and self-checking method of water level probe |
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| CN103017853A true CN103017853A (en) | 2013-04-03 |
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| CN2011102799918A Pending CN103017853A (en) | 2011-09-20 | 2011-09-20 | Water level probe with self-checking function and self-checking method of water level probe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835289A (en) * | 2015-06-02 | 2015-08-12 | 张方锐 | Intelligent alarm system against water leakage of ship cabin |
| CN105883972A (en) * | 2014-09-26 | 2016-08-24 | 杜也兵 | Self-check method for control part of water purifier |
| CN106291311A (en) * | 2015-05-28 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and the fault detection method of anti-spilled testing circuit and control method |
| CN106264110A (en) * | 2015-05-28 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and the fault detection method of anti-spilled testing circuit when powering on thereof |
| CN111422932A (en) * | 2020-04-27 | 2020-07-17 | 岳阳佰胜智慧环保科技有限公司 | Operation control method of grating dirt separator |
| CN112279205A (en) * | 2017-05-25 | 2021-01-29 | 佛山市顺德区美的饮水机制造有限公司 | Control method for detecting water level in soda water tank and soda water machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883972A (en) * | 2014-09-26 | 2016-08-24 | 杜也兵 | Self-check method for control part of water purifier |
| CN106291311A (en) * | 2015-05-28 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and the fault detection method of anti-spilled testing circuit and control method |
| CN106264110A (en) * | 2015-05-28 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and the fault detection method of anti-spilled testing circuit when powering on thereof |
| CN106264110B (en) * | 2015-05-28 | 2018-07-17 | 佛山市顺德区美的电热电器制造有限公司 | The fault detection method of electric cooking pot and its while powering on anti-spilled detection circuit |
| CN104835289A (en) * | 2015-06-02 | 2015-08-12 | 张方锐 | Intelligent alarm system against water leakage of ship cabin |
| CN112279205A (en) * | 2017-05-25 | 2021-01-29 | 佛山市顺德区美的饮水机制造有限公司 | Control method for detecting water level in soda water tank and soda water machine |
| CN111422932A (en) * | 2020-04-27 | 2020-07-17 | 岳阳佰胜智慧环保科技有限公司 | Operation control method of grating dirt separator |
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Application publication date: 20130403 |