CN108931283A - A kind of level testing methods and device of sink - Google Patents
A kind of level testing methods and device of sink Download PDFInfo
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- CN108931283A CN108931283A CN201710361817.5A CN201710361817A CN108931283A CN 108931283 A CN108931283 A CN 108931283A CN 201710361817 A CN201710361817 A CN 201710361817A CN 108931283 A CN108931283 A CN 108931283A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
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Abstract
The embodiment of the invention discloses a kind of level testing methods of sink, including：Obtain the voltage value on high water level detecting electrode；Detect the magnitude of a voltage fluctuation of the voltage value within a preset time；Judged according to water level of the size of magnitude of a voltage fluctuation to sink.The embodiment of the invention discloses a kind of water-level detecting devices of sink.Scheme through the embodiment of the present invention directly, can not accurately be detected sink water level by water quality impact.
Description
Technical field
The present embodiments relate to cooker control technology field more particularly to a kind of level testing methods of sink and
Device.
Background technique
Sink is an essential equipment in family kitchen, and intelligent cleaning sink is also more and more on the market at present,
Fruits and vegetables, dishes etc. can be cleaned automatically.
When cleaning, the control of water level is very crucial, the more then waste water resources of water, and few then will lead to of water does not wash clean clearly.At present
The main method of intelligent cleaning sink control water level is that inflow is calculated by the way of flowmeter, and flowmeter itself exists centainly
Error can reach measuring accuracy by way of reducing flow if measuring accuracy requires high, but when this causes into water again
Between lengthen.In addition, flowmeter can only judge indirectly the water level in sink by inflow, it is not directly to measure, works as water inlet
When variation in water pressure or sink leak, the error of flowmeter sensed water level can be increased further.
And electrode method water level detecting is direct measuring method, and when sink water level touches electrode, electrode, water and sink shape
At circuit, the voltage of level electrode can detecte by bleeder circuit, to judge water level.However, when cleaning dishes, by
In to add wash the dishes powder or detergent in water, the conductivity of water is changed, to affect the voltage on electrode, leads to water level
Detection is inaccurate.
Summary of the invention
The embodiment of the invention provides a kind of level testing methods of sink and device, can not by water quality impact, directly,
Accurately detect sink water level.
In order to solve the above technical problems, the embodiment of the present invention adopts the following technical scheme that：
A kind of level testing methods of sink, this method include：
Obtain the voltage value on high water level detecting electrode；
Detect the magnitude of a voltage fluctuation of the voltage value within a preset time；
Judged according to water level of the size of magnitude of a voltage fluctuation to sink.
Optionally, the voltage value on acquisition high water level detecting electrode includes：
The voltage on one or more high water level detecting electrodes is detected every preset detection cycle, to obtain one
Or multiple voltage values.
Optionally, the magnitude of a voltage fluctuation of detection voltage value within a preset time includes：
Obtain the corresponding multiple voltage values of each high water level detecting electrode detected within a preset time；
Difference is asked to calculate the corresponding one or more of each high water level detecting electrode voltage value adjacent in multiple voltage values
Magnitude of a voltage fluctuation；
Wherein, preset time >=2 × detection cycle.
Optionally, carrying out judgement according to water level of the size of magnitude of a voltage fluctuation to sink includes：
When within a preset time, detect first voltage undulating value remain less than or be equal to preset first voltage threshold value
When, determine sink water level always above or equal to corresponding first high water level detecting electrode of first voltage undulating value position, or
Person is always below the position of the first high water level detecting electrode；And
When within a preset time, detecting that first voltage undulating value is greater than first voltage threshold value, the water level of sink is determined
Change in location by being greater than or equal to the first level electrode is the position lower than the first high water level detecting electrode, or by being lower than first
The change in location of high water level detecting electrode is the position greater than or equal to the first high water level detecting electrode.
Optionally, this method further includes：
After the voltage value for obtaining high water level detecting electrode, voltage value is compared with preset second voltage threshold value；
Judged according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink.
Optionally, carrying out judgement according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink includes：
When within a preset time, detecting that first voltage undulating value remains less than or be equal to first voltage threshold value, and voltage
When value is greater than or equal to second voltage threshold value, determine that the water level of sink is always below the position of the first high water level detecting electrode；
When within a preset time, detecting that first voltage undulating value remains less than or be equal to first voltage threshold value, and voltage
Value be less than second voltage threshold value when, determine sink water level always above or equal to the first high water level detecting electrode position；
When within a preset time, detect first voltage undulating value be greater than first voltage threshold value, and fluctuate after voltage value
When more than or equal to second voltage threshold value, determine the water level of sink by the change in location greater than or equal to the first high water level detecting electrode
For the position lower than the first high water level detecting electrode；And
When within a preset time, detect first voltage undulating value be greater than first voltage threshold value, and fluctuate after voltage value
When less than second voltage threshold value, determine the water level of sink by the change in location lower than the first high water level detecting electrode be greater than or equal to
The position of first high water level detecting electrode.
Optionally, carrying out judgement according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink further includes：
When within a preset time, detect first voltage undulating value be greater than first voltage threshold value, and fluctuate after voltage value
Less than second voltage threshold value, when the second voltage undulating value after fluctuation is less than or equal to first voltage threshold value, the water of sink is determined
Position be kept above or equal to the first high water level detecting electrode position.
Optionally, first voltage threshold value includes：0.2V；
Second voltage threshold value includes：5V；
Detection cycle includes：1-20ms.
A kind of water-level detecting device of sink, the device include：High water level detecting electrode obtains module, detection module and sentences
Disconnected module；
Module is obtained, for obtaining the voltage value on high water level detecting electrode；
Detection module, for detecting the magnitude of a voltage fluctuation of voltage value within a preset time；
Judgment module, for being judged according to the size of magnitude of a voltage fluctuation the water level of sink.
Optionally, one or more high water level detecting electrodes are mounted on the side wall of sink, alternatively,
One or more high water level detecting electrodes were mounted on the communicating pipe of sink.
The beneficial effect of the embodiment of the present invention includes：
1, the embodiment of the present invention detects voltage value magnitude of a voltage fluctuation within a preset time and according to magnitude of a voltage fluctuation
Size judges the water level of sink.The program can directly detect sink water level, and can draw to avoid change of water quality
The detection error risen improves Detection accuracy and user experience to avoid influencing machine performance.
2, the embodiment of the present invention is after the voltage value for obtaining high water level detecting electrode, by voltage value and preset second voltage
Threshold value compares；Judged according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink.The program can combine
Above-mentioned magnitude of a voltage fluctuation clearly distinguishes high water level detecting electrode and has touched water or not in contact with to water, further improved
The accuracy rate of detection.
3, first voltage threshold value is smaller in the embodiment of the present invention, illustrates that desired voltage fluctuation is smaller, is more avoided that dry
It disturbs, to accurately determine current water level, if first voltage threshold value is too small the routine fluctuations of water can not be conformed to
It asks, the first voltage threshold value of the embodiment of the present invention includes 0.2V, and numerical value setting is reasonable, it is ensured that avoids interfering, improves water
The accuracy of position monitoring, and it is able to satisfy the routine fluctuations demand of water.
4, the detection cycle in the embodiment of the present invention includes 1-20ms, and the value range of the detection cycle is reasonable, can be kept away
Exempting from the time too short leads to not to detect that voltage fluctuation and time too long lead to the phenomenon that missing voltage wave crest or trough hair
It is raw.
5, one or more high water level detecting electrodes of the embodiment of the present invention may be mounted on the side wall of sink, structure letter
It is single, it is low in cost；The high water level detecting electrode of the embodiment of the present invention can also be mounted on the communicating pipe of sink, can be to avoid sink
Ontology aperture guarantees good appearance, and guarantees to be easily installed.
Detailed description of the invention
The embodiment of the present invention is described further with reference to the accompanying drawing：
Fig. 1 is the level testing methods flow chart of the embodiment of the present invention；
Fig. 2 is the sink composed structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the electrode method level testing methods schematic diagram of the embodiment of the present invention；
Fig. 4 is the measured water level electrode voltage value and ga ge relation schematic diagram of the embodiment of the present invention；
Fig. 5 is the water-level detecting device composition block diagram of the embodiment of the present invention；
Fig. 6 is that the high water level detecting electrode of the embodiment of the present invention is mounted on the schematic diagram on communicating pipe.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing pair
The embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Embodiment one
A kind of level testing methods of sink, as shown in Figure 1, the method comprising the steps of S101-S103：
Voltage value on S101, acquisition high water level detecting electrode.
In embodiments of the present invention, as shown in Fig. 2, cleaning sink is mainly by water trough body, sink cavity, upper cover, spilling water
Mouth and outlet device composition, the water routes such as washing pump, gushing arm component is not in figure.Upper cover is arranged above water trough body, and outlet device is set
It sets in water trough body bottom surface, gap is arranged in water trough body side.High water level detecting electrode can be set in water trough body side,
It is electrically connected by conducting wire with control circuit, is mounted on water trough body side by electrode fixed block, is passed through sealing ring and sink
Isolation, sealing.
In embodiments of the present invention, as shown in figure 3, electrode method level testing methods principle is：Water trough body ground connection, water level
Resistance between detecting electrode and water trough body is dielectric resistance R2, a termination power VCC of pull-up resistor R1, the other end and water level
Detecting electrode connection, R1, R2 form bleeder circuit.When water trough inner water is not in contact with level electrode, R2 resistance value is very big, at this time water
The voltage of position electrode is VCC；When the water in sink touches high water level detecting electrode, R2 resistance value is by the interior water held of sink
Resistance value, at this time the voltage of high water level detecting electrode be VCC*R2/ (R1+R2).Since the objects such as detergent are to the conductivity of water
Influence is very big, therefore the difference of water quality will lead to R2 resistance value difference, and the variation of dielectric resistance R2 can cause high water level detecting electrode
The variation of voltage, so as to cause the error of water level detecting.
In embodiments of the present invention, as shown in figure 4, common water quality and being contacted containing detergent water quality in high water level detecting electrode
It detects voltage value and is different when to water, and the voltage value of the water quality containing detergent wants much lower.As shown in figure 4, working as water level
After height reaches 3cm, the voltage of high water level detecting electrode is basicly stable, wherein the voltage of common water quality is about 2.6v, and contains
The voltage of the water quality of detergent wants much lower, about 1.8v.In addition, being measured using traditional voltage comparison method, pre-suppose that
One voltage reference value (such as 3V), the voltage of above two water quality is compared to judge water level with voltage reference value 3v, then
When high water level detecting electrode voltage reaches 3v, the actual height of water level of common water quality is 2.8cm, with high water level detecting electrode height
3cm has the error of 0.2cm；And the water quality containing detergent, when high water level detecting electrode voltage reaches 3v, actual height of water level is
2.6cm has the error of 0.4cm with high water level detecting electrode height 3cm.Therefore, traditional level testing methods are due to being with solid
Fixed predeterminated voltage compares to judge whether level electrode contacts water, and dish-washing machine biggish for change of water quality is simultaneously improper,
It will lead to large error, influence machine performance.
In embodiments of the present invention, in order to enable electrode method sensed water level detects more acurrate, the present invention not by water quality impact
Embodiment is made that improvement to traditional electrode method level testing methods, after can contacting water by sensed water level detecting electrode
Burning voltage judges that voltage fluctuation very little is basicly stable, and only its specific voltage value of different quality is of different sizes, can
To pass through the difference of front and back voltage value, i.e. magnitude of a voltage fluctuation carrys out sensed water level variation.
In embodiments of the present invention, due to the undulating value that the magnitude of a voltage fluctuation is the voltage value on high water level detecting electrode, because
This, needs to obtain the voltage value on preset high water level detecting electrode first.In embodiments of the present invention, which can
One or more is arranged, to detect the different water levels in sink.
Optionally, the voltage value on acquisition high water level detecting electrode includes：
The voltage on one or more high water level detecting electrodes is detected every preset detection cycle, to obtain one
Or multiple voltage values.
In embodiments of the present invention, a detection cycle can be preset, according to the detection cycle to water level detecting electricity
Voltage value on extremely is detected.Since the size of the detection cycle is related to the accuracy of subsequent magnitude of a voltage fluctuation, if
The time of the detection cycle too short may cause can not detect voltage fluctuation, and the time, too long may cause missed voltage wave crest
Or the phenomenon that trough, occurs.Therefore, the value range of the detection cycle may include 1-20ms, to guarantee rationally, effectively to examine
Survey the magnitude of a voltage fluctuation on high water level detecting electrode.In embodiments of the present invention, for different water quality, which can be set
It is set to different numerical value, here with no restrictions for its specific value, and is not limited to the value range of above-mentioned 1-20ms.Appoint
What can reach the detection cycle numerical value that sink water level is accurately detected by magnitude of a voltage fluctuation all in the protection of the embodiment of the present invention
Within the scope of.
In embodiments of the present invention, the reasonable setting based on detection cycle, can be according to the detection cycle to presetting
One or more high water level detecting electrodes on voltage detected respectively, and obtain each high water level detecting electrode respectively multiple
The multiple voltage values detected in detection cycle.
S102, the magnitude of a voltage fluctuation of the voltage value within a preset time is detected.
In embodiments of the present invention, the multiple electricity detected in multiple detection cycles in each high water level detecting electrode of acquisition
After pressure value, the magnitude of a voltage fluctuation of multiple voltage value within a preset time can be calculated.Wherein, which needs full
Foot：Preset time >=2 × detection cycle, the difference of two voltage values when due to magnitude of a voltage fluctuation, at least need at two
The magnitude of a voltage fluctuation can be just calculated after detection cycle.In specific implementation, the preset time be specially 2 detection cycles also
It is more detection cycles, can be required according to different water quality or different detection accuracy to be arranged.
Optionally, the magnitude of a voltage fluctuation of detection voltage value within a preset time includes：
Obtain the corresponding multiple voltage values of each high water level detecting electrode detected within a preset time；
Difference is asked to calculate the corresponding one or more of each high water level detecting electrode voltage value adjacent in multiple voltage values
Magnitude of a voltage fluctuation.
In embodiments of the present invention, calculating the magnitude of a voltage fluctuation can calculate separately for each high water level detecting electrode, with
Obtain the magnitude of a voltage fluctuation on each high water level detecting electrode.Specifically, if it is more demanding to detection accuracy, it can will be with first
Adjacent voltage value asks poor in the corresponding multiple voltage values of high water level detecting electrode, corresponding to calculate the first high water level detecting electrode
One or more first voltage undulating values.It, can also will be with the first high water level detecting electrode pair if of less demanding to detection accuracy
First voltage value being arranged successively in the multiple voltage values answered and third voltage value or the 4th, the 5th voltage value are asked
Difference, to calculate the corresponding one or more first voltage undulating values of the first high water level detecting electrode.In embodiments of the present invention, and
It is not limited to calculate the difference of adjacent voltage values to obtain the magnitude of a voltage fluctuation.
S103, the water level of sink is judged according to the size of magnitude of a voltage fluctuation.
In embodiments of the present invention, after detecting the magnitude of a voltage fluctuation on high water level detecting electrode through the above scheme, just
The water level of sink can be judged according to the size of magnitude of a voltage fluctuation.
Optionally, carrying out judgement according to water level of the size of magnitude of a voltage fluctuation to sink includes two kinds of situations：
Situation one
When within a preset time, detect first voltage undulating value remain less than or be equal to preset first voltage threshold value
When, determine sink water level always above or equal to corresponding first high water level detecting electrode of first voltage undulating value position, or
Person is always below the position of the first high water level detecting electrode.
In embodiments of the present invention, it can preset what voltage fluctuation referred to according to different application scenarios or required precision
Standard of comparison, i.e., above-mentioned first voltage threshold value, by relatively obtaining magnitude of a voltage fluctuation compared with the first voltage threshold value
The fluctuation size of the magnitude of a voltage fluctuation.In embodiments of the present invention, first voltage threshold value is smaller, illustrates desired voltage fluctuation
It is smaller, it is more avoided that interference, so as to accurately determine current water level, makes the normal of water if first voltage threshold value is too small
Rule fluctuation can not meet the requirements, and the first voltage threshold value of the embodiment of the present invention may include 0.2V, and numerical value setting rationally, can
To guarantee to avoid interfering, the accuracy of water level monitoring is improved, and be able to satisfy the routine fluctuations demand of water.
In embodiments of the present invention, the setting based on above-mentioned first voltage threshold value, can by first voltage undulating value with
The first voltage threshold value compares, if comparison result is that first voltage undulating value is remained less than or equal to preset first
Voltage threshold then can be determined that the water level of sink is always maintained at and do not become that is, the water level of sink can keep always above or be equal to
The position of first high water level detecting electrode, or keep the position for being always below the first high water level detecting electrode.
In embodiments of the present invention, if it is known that the initial position of sink water level, then may determine that current sink water level
It is maintained at that the first high water level detecting electrode or less is unchanged or to be maintained at the first high water level detecting electrode or more unchanged.
Situation two
When within a preset time, detecting that first voltage undulating value is greater than first voltage threshold value, the water level of sink is determined
Change in location by being greater than or equal to the first level electrode is the position lower than the first high water level detecting electrode, or by being lower than first
The change in location of high water level detecting electrode is the position greater than or equal to the first high water level detecting electrode.
In embodiments of the present invention, the setting based on above-mentioned first voltage threshold value, by first voltage undulating value with should
After first voltage threshold value is compared relatively, if comparison result is that first voltage undulating value is greater than first voltage threshold value, it can sentence
The water level for determining sink is changed, and specifically, the water level of sink is by the change in location for being greater than or equal to the first level electrode
It is greater than or equal to the lower than the position of the first high water level detecting electrode, or by the change in location lower than the first high water level detecting electrode
The position of one high water level detecting electrode.
It in embodiments of the present invention, can will continuous multiple magnitude of a voltage fluctuation and the in order to ensure the accuracy of detection
One voltage threshold compares, can if comparison result is a first voltage undulating value only occur to be greater than first voltage threshold value
To determine that the water level of current sink is fluctuated once in a while, and the water-level fluctuation causes in the first high water level detecting electrode and sink
Water joint, or want to be detached from the water in sink.If comparison result is that first voltage undulating value occur big for continuous several times
In first voltage threshold value, then it can be determined that the water level of current sink is changed, and the water level after variation makes the first water
Position detecting electrode keeps wanting to be detached from the water in sink with the water joint in sink, or holding.
In embodiments of the present invention, if it is known that the initial position of sink water level be maintained at the first high water level detecting electrode with
Under, then the position of current sink water level is to be maintained at the first high water level detecting electrode or more or flush with the first high water level detecting electrode,
That is the state that the first high water level detecting electrode touches water by being changed into not in contact with the state to water.If it is known that sink water level is first
Beginning position is to be maintained at the first high water level detecting electrode or more or flush with the first high water level detecting electrode, then the position of current sink water level
Be set to be maintained at the first high water level detecting electrode hereinafter, i.e. the first high water level detecting electrode by the state for touching water be changed into not in contact with
To the state of water.
In embodiments of the present invention, the second high water level detecting electrode, the third water level in multiple high water level detecting electrodes are examined
Electrode etc. is surveyed, water level judges that scheme is identical as the first high water level detecting electrode, and details are not described herein.
Embodiment two
The difference of the embodiment and embodiment one is, can combine the voltage value and magnitude of a voltage fluctuation of high water level detecting electrode
Directly judge whether high water level detecting electrode has touched water.
Optionally, this method further includes：
After the voltage value for obtaining high water level detecting electrode, voltage value is compared with preset second voltage threshold value；Root
Judge according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink.
In embodiments of the present invention, scheme is judged by above-mentioned water level it is found that working as water not in contact with high water level detecting electrode, and
And when larger with a distance from high water level detecting electrode, the voltage value on high water level detecting electrode is stable, fluctuation very little.When water contacts water
After the detecting electrode of position, the voltage value on high water level detecting electrode is also stable, fluctuation very little.Unlike, when water is not in contact with water
When the detecting electrode of position, the voltage value on high water level detecting electrode is very big, and after water contact high water level detecting electrode, on high water level detecting electrode
Voltage value it is much smaller.Based on above-mentioned phenomenon, can directly sentence in conjunction with the voltage value of high water level detecting electrode with magnitude of a voltage fluctuation
Whether disconnected high water level detecting electrode out has touched water.
Optionally, carrying out judgement according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink includes following four kinds
Situation：
Situation one
When within a preset time, detecting that first voltage undulating value remains less than or be equal to first voltage threshold value, and voltage
When value is greater than or equal to second voltage threshold value, determine that the water level of sink is always below the position of the first high water level detecting electrode.
In embodiments of the present invention, by electrode method water level detecting principle above-mentioned it is found that in water not in contact with water level detecting
When electrode, the maximum voltage value of high water level detecting electrode is supply voltage VCC, at this time voltage fluctuation very little, front and back voltage difference
Less than first voltage threshold value above-mentioned.After water touches high water level detecting electrode, the voltage value on high water level detecting electrode becomes
V0, the magnitude of a voltage fluctuation of V0 also very little at this time, front and back voltage difference is again smaller than first voltage threshold value.It is apparent that VCC>V0 is
It clearly determines whether current level has touched high water level detecting electrode, needs to distinguish the two voltages, of the invention real
It applies in example, second voltage a threshold value V1, value range VCC can be preset>V1>V0, for distinguishing current level
Voltage on detecting electrode is high voltage or low-voltage.In the case of wherein V0 is various different qualities, water touches water level inspection
Maximum voltage after survey electrode on high water level detecting electrode.
In embodiments of the present invention, as shown in figure 4, being the relationship of the voltage value and water level on the high water level detecting electrode of actual measurement
Figure, wherein ordinate is voltage (v), and abscissa is height of water level (cm).According to the figure it is found that when water is not in contact with water level detecting
When electrode, voltage value is close to 5V, after water touches high water level detecting electrode, voltage value be rapidly reduced to 2.6V or
1.8V.Therefore.According to this embodiment it is found that optionally, second voltage threshold value may include：5V.In other embodiments, may be used also
To be set as other voltage values according to specific application scenarios or voltage requirements, the specific value of second voltage threshold value is not done
Limitation.
In embodiments of the present invention, after presetting the first voltage threshold value, when within a preset time, detect first electricity
Pressure undulating value remain less than or be equal to first voltage threshold value when, can further by the voltage value of high water level detecting electrode and this second
Voltage threshold compares, to determine the voltage range of current level detecting electrode.If the voltage value of high water level detecting electrode is greater than
Or be equal to second voltage threshold value, then illustrate that the voltage value of high water level detecting electrode is in high-voltage state, it is possible to determine that current level
Detecting electrode is always below the position of the first high water level detecting electrode not in contact with the water level to water, i.e. sink.
Situation two
When within a preset time, detecting that first voltage undulating value remains less than or be equal to first voltage threshold value, and voltage
Value be less than second voltage threshold value when, determine sink water level always above or equal to the first high water level detecting electrode position.
In embodiments of the present invention, based in above-mentioned condition one to the voltage value of high water level detecting electrode and the second voltage threshold
The comparison of value illustrates water level detecting electricity if the voltage value that comparison result is high water level detecting electrode is less than second voltage threshold value
The voltage value of pole is in low-voltage state, it is possible to determine that current level detecting electrode has touched water, the i.e. water level one of sink
The straight position for being greater than or equal to the first high water level detecting electrode.
Situation three
When within a preset time, detect first voltage undulating value be greater than first voltage threshold value, and fluctuate after voltage value
When more than or equal to second voltage threshold value, determine the water level of sink by the change in location greater than or equal to the first high water level detecting electrode
For the position lower than the first high water level detecting electrode.
In embodiments of the present invention, after presetting the first voltage threshold value, when within a preset time, detect first electricity
Press undulating value be greater than first voltage threshold value when, can also further by the voltage value of the high water level detecting electrode after fluctuation and this second
Voltage threshold compares, and to determine the voltage range of current level detecting electrode, and is further determined that and is worked as according to the voltage range
The specific fluctuation situation of preceding water level.If the voltage value of the high water level detecting electrode after fluctuation is greater than or equal to second voltage threshold value,
Then illustrate that the voltage value of high water level detecting electrode is currently in high-voltage state, it is possible to determine that current level detecting electrode is not in contact with arriving
Water, then it is lower than first that the water-level fluctuation situation for illustrating sink, which is by being greater than or equal to the change in location of the first high water level detecting electrode,
The position of high water level detecting electrode.
Situation four
When within a preset time, detect first voltage undulating value be greater than first voltage threshold value, and fluctuate after voltage value
When less than second voltage threshold value, determine the water level of sink by the change in location lower than the first high water level detecting electrode be greater than or equal to
The position of first high water level detecting electrode.
In embodiments of the present invention, based in above-mentioned condition three to the voltage value of high water level detecting electrode and the second voltage threshold
The comparison of value illustrates water level detecting electricity if the voltage value that comparison result is high water level detecting electrode is less than second voltage threshold value
The voltage value of pole is in low-voltage state, it is possible to determine that current level detecting electrode has touched water, then illustrates the water of sink
It is the position greater than or equal to the first high water level detecting electrode that position fluctuation situation, which is by the change in location lower than the first high water level detecting electrode,
It sets.
In embodiments of the present invention, through the above scheme can by the size of the voltage value of high water level detecting electrode with it is above-mentioned
Magnitude of a voltage fluctuation combines, and clearly distinguishes high water level detecting electrode and has touched water or not in contact with to water, further increased
The accuracy rate of detection.
Optionally, carrying out judgement according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink further includes：
When within a preset time, detect first voltage undulating value be greater than first voltage threshold value, and fluctuate after voltage value
Less than second voltage threshold value, when the second voltage undulating value after fluctuation is less than or equal to first voltage threshold value, the water of sink is determined
Position be kept above or equal to the first high water level detecting electrode position.
In embodiments of the present invention, if detecting that first voltage undulating value is greater than within a preset time through the above scheme
First voltage threshold value, and the voltage value after fluctuation is less than second voltage threshold value, and determines the water level of sink by lower than the first water level
After the change in location of detecting electrode is the position greater than or equal to the first high water level detecting electrode, it can also continue to current water level
Voltage value on detecting electrode is detected, and further calculates out current level detection according to the voltage value detected herein
Magnitude of a voltage fluctuation on electrode, i.e., above-mentioned second voltage undulating value, by the second voltage undulating value again with first voltage threshold
Value compares, if comparison result is that second voltage undulating value is less than or equal to first voltage threshold value, illustrates in current sink
Water level by lower than the first high water level detecting electrode change in location be greater than or equal to the first high water level detecting electrode position with
Afterwards, it is always held at the position greater than or equal to the first high water level detecting electrode.The embodiment to monitor more water position status
Accurately.
Embodiment three
A kind of water-level detecting device 1 of sink, as shown in figure 5, the device includes：High water level detecting electrode 11 obtains module
12, detection module 13 and judgment module 14.
Module 12 is obtained, for obtaining the voltage value on high water level detecting electrode 11.
Detection module 13, for detecting the magnitude of a voltage fluctuation of voltage value within a preset time.
Judgment module 14, for being judged according to the size of magnitude of a voltage fluctuation the water level of sink.
In embodiments of the present invention, any embodiment in above-mentioned embodiment of the method is suitable for the Installation practice
In, it repeats no more again.
Optionally, one or more high water level detecting electrodes are mounted on the side wall of sink.
In embodiments of the present invention, the installation site of pre-set multiple level electrodes can be as shown in Fig. 2, this
Or multiple high water level detecting electrodes can be set on the side wall of water trough body, and the plan of establishment structure is simple, and it is low in cost, it is convenient for
Implement.
It in embodiments of the present invention, with no restrictions to the specific setting position of high water level detecting electrode and particular number, can
According to different application scenarios or demand self-defining.
Example IV
The embodiment is that the installation site of high water level detecting electrode is different from the difference of embodiment three.
Optionally, one or more high water level detecting electrodes were mounted on the communicating pipe of sink.
In embodiments of the present invention, as shown in fig. 6, level electrode also can be set on communicating pipe, communicating pipe one end with
Water route is connected in sink, and the other end is communicated with the gap of sink, forms linker, makes in communicating pipe in water level and sink cavity
Height of water level it is consistent.High water level detecting electrode, which was mounted on the communicating pipe of sink, to guarantee sink to avoid water trough body aperture
Good appearance, and guarantee be easily installed, it is easy to clean.
The beneficial effect of the embodiment of the present invention includes：
1, the embodiment of the present invention detects voltage value magnitude of a voltage fluctuation within a preset time and according to magnitude of a voltage fluctuation
Size judges the water level of sink.The program can directly detect sink water level, and can draw to avoid change of water quality
The detection error risen improves Detection accuracy and user experience to avoid influencing machine performance.
2, the embodiment of the present invention is after the voltage value for obtaining high water level detecting electrode, by voltage value and preset second voltage
Threshold value compares；Judged according to water level of the size of comparison result and magnitude of a voltage fluctuation to sink.The program can combine
Above-mentioned magnitude of a voltage fluctuation clearly distinguishes high water level detecting electrode and has touched water or not in contact with to water, further improved
The accuracy rate of detection.
3, first voltage threshold value is smaller in the embodiment of the present invention, illustrates that desired voltage fluctuation is smaller, is more avoided that dry
It disturbs, to accurately determine current water level, if first voltage threshold value is too small the routine fluctuations of water can not be conformed to
It asks, the first voltage threshold value of the embodiment of the present invention includes 0.2V, and numerical value setting is reasonable, it is ensured that avoids interfering, improves water
The accuracy of position monitoring, and it is able to satisfy the routine fluctuations demand of water.
4, the detection cycle in the embodiment of the present invention includes 1-20ms, and the value range of the detection cycle is reasonable, can be kept away
Exempting from the time too short leads to not to detect that voltage fluctuation and time too long lead to the phenomenon that missing voltage wave crest or trough hair
It is raw.
5, one or more high water level detecting electrodes of the embodiment of the present invention may be mounted on the side wall of sink, structure letter
It is single, it is low in cost；The high water level detecting electrode of the embodiment of the present invention can also be mounted on the communicating pipe of sink, can be to avoid sink
Ontology aperture guarantees good appearance, and guarantees to be easily installed.
Although embodiment disclosed by the embodiment of the present invention is as above, only the present invention is real for ease of understanding for the content
The embodiment applying example and using is not intended to limit the invention embodiment.Skill in any fields of the embodiment of the present invention
Art personnel can be in the form and details of implementation under the premise of not departing from spirit and scope disclosed by the embodiment of the present invention
It is upper to carry out any modification and variation, but the scope of patent protection of the embodiment of the present invention, it still must be with appended claims institute
Subject to the range defined.
Claims (10)
1. a kind of level testing methods of sink, which is characterized in that the method includes：
Obtain the voltage value on high water level detecting electrode；
Detect the magnitude of a voltage fluctuation of the voltage value within a preset time；
Judged according to water level of the size of the magnitude of a voltage fluctuation to sink.
2. level testing methods according to claim 1, which is characterized in that the voltage obtained on high water level detecting electrode
Value includes：
The voltage on one or more high water level detecting electrodes is detected every preset detection cycle, to obtain one
Or multiple voltage values.
3. level testing methods according to claim 2, which is characterized in that the detection voltage value is in preset time
Interior magnitude of a voltage fluctuation includes：
Obtain the corresponding multiple voltage values of each high water level detecting electrode detected in the preset time；
Difference is asked to calculate the corresponding one or more of each high water level detecting electrode voltage value adjacent in the multiple voltage value
Magnitude of a voltage fluctuation；
Wherein, preset time >=2 × detection cycle.
4. level testing methods according to claim 3, which is characterized in that the size according to the magnitude of a voltage fluctuation
Carrying out judgement to the water level of sink includes：
In the preset time, detect that first voltage undulating value remains less than or be equal to preset first voltage threshold value
When, determine the water level of the sink always above or equal to the first voltage undulating value corresponding first high water level detecting electrode
Position, or the position of always below described first high water level detecting electrode；And
In the preset time, when detecting that the first voltage undulating value is greater than the first voltage threshold value, institute is determined
The water level of sink is stated by being greater than or equal to the change in location of first level electrode for lower than first high water level detecting electrode
Position, or by the change in location lower than first high water level detecting electrode be greater than or equal to first water level detecting electricity
The position of pole.
5. level testing methods according to claim 1 or 4, which is characterized in that the method also includes：
After the voltage value for obtaining the high water level detecting electrode, by the voltage value compared with preset second voltage threshold value
Compared with；
Judged according to water level of the size of comparison result and the magnitude of a voltage fluctuation to sink.
6. level testing methods according to claim 5, which is characterized in that described according to comparison result and the voltage wave
The size of dynamic value carries out judgement to the water level of sink：
In the preset time, detect that the first voltage undulating value remains less than or be equal to the first voltage threshold
Value, and when the voltage value is greater than or equal to the second voltage threshold value, determine that the water level of the sink is always below described the
The position of one high water level detecting electrode；
In the preset time, detect that the first voltage undulating value remains less than or be equal to the first voltage threshold
Value, the and when voltage value is less than the second voltage threshold value, determine the water level of the sink always above or be equal to described the
The position of one high water level detecting electrode；
In the preset time, detect that the first voltage undulating value is greater than the first voltage threshold value, and after fluctuation
Voltage value when being greater than or equal to the second voltage threshold value, determine the water level of the sink by being greater than or equal to described the
The change in location of one high water level detecting electrode is the position lower than first high water level detecting electrode；And
In the preset time, detect that the first voltage undulating value is greater than the first voltage threshold value, and after fluctuation
Voltage value when being less than the second voltage threshold value, determine the water level of the sink by lower than the first water level detecting electricity
The change in location of pole is the position greater than or equal to first high water level detecting electrode.
7. level testing methods according to claim 5, which is characterized in that described according to comparison result and the voltage wave
The size of dynamic value carries out judgement to the water level of sink：
In the preset time, detect that the first voltage undulating value is greater than the first voltage threshold value, and after fluctuation
The voltage value be less than the second voltage threshold value, second voltage undulating value after fluctuation is less than or equal to the first voltage
When threshold value, determine the water level of the sink be kept above or equal to first high water level detecting electrode position.
8. according to level testing methods described in claim 2-7 any one, which is characterized in that
The first voltage threshold value includes：0.2V；
The second voltage threshold value includes：5V；
The detection cycle includes：1-20ms.
9. a kind of water-level detecting device of sink, which is characterized in that described device includes：High water level detecting electrode obtains module, inspection
Survey module and judgment module；
The acquisition module, for obtaining the voltage value on the high water level detecting electrode；
The detection module, for detecting the magnitude of a voltage fluctuation of the voltage value within a preset time；
The judgment module, for being judged according to the size of the magnitude of a voltage fluctuation the water level of sink.
10. water-level detecting device according to claim 8, which is characterized in that
One or more high water level detecting electrodes are mounted on the side wall of the sink, alternatively,
One or more high water level detecting electrodes were mounted on the communicating pipe of the sink.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332685A (en) * | 2019-06-27 | 2019-10-15 | 郑州商学院 | For controlling the method, apparatus and air conditioner indoor unit of humidification apparatus |
| CN110608785A (en) * | 2019-08-22 | 2019-12-24 | 安徽省法米特物联技术有限公司 | Internet of things pressure liquid level meter and liquid level measurement method |
| CN110806246A (en) * | 2019-11-15 | 2020-02-18 | 深圳朗特智能控制股份有限公司 | Water level monitoring device, water level monitoring method and system thereof, and storage medium |
| CN111103623A (en) * | 2019-12-09 | 2020-05-05 | 九阳股份有限公司 | Water detection method of food processing machine |
| CN111854888A (en) * | 2020-07-25 | 2020-10-30 | 珠海格力电器股份有限公司 | Water level detection method and device, storage medium and kettle |
| CN112461338A (en) * | 2020-11-18 | 2021-03-09 | 珠海格力电器股份有限公司 | Liquid level detection abnormity judgment device and method |
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| CN112880772A (en) * | 2021-01-12 | 2021-06-01 | 珠海格力电器股份有限公司 | Water level detection device and method, storage medium and electric kettle |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160548A (en) * | 1996-12-02 | 1998-06-19 | N K K Plant Kensetsu Kk | Detecting method for water level in water tank |
| JPH1164069A (en) * | 1997-08-19 | 1999-03-05 | Asahi Glass Co Ltd | Molten liquid level indicator |
| JP2006090928A (en) * | 2004-09-27 | 2006-04-06 | Jimutekku:Kk | Measuring method of liquid level or the like, and measuring device used therefor |
| CN101112820A (en) * | 2006-12-20 | 2008-01-30 | 珠海天威技术开发有限公司 | Detection circuit and ink box |
| CN101358868A (en) * | 2008-09-10 | 2009-02-04 | 南京林业大学 | Capacitance liquid level sensor and liquid level detector using the sensor |
| CN101694396A (en) * | 2009-01-23 | 2010-04-14 | 南京乐金熊猫电器有限公司 | Water level detecting device and method for dryer |
| CN101858770A (en) * | 2009-04-09 | 2010-10-13 | 深圳迈瑞生物医疗电子股份有限公司 | Liquid level detection device and sample adding system |
| CN102193032A (en) * | 2010-03-08 | 2011-09-21 | 上海海栎创微电子有限公司 | Self-capacitance change measuring circuit with high precision and high stability |
| JP2011252709A (en) * | 2010-05-31 | 2011-12-15 | Seiko Epson Corp | Liquid detecting device and liquid detecting method |
| US20120304761A1 (en) * | 2011-06-03 | 2012-12-06 | Denso Corporation | Fluid level measurement apparatus and system |
| WO2013009251A1 (en) * | 2011-07-08 | 2013-01-17 | Imego Ab | Method to use a probe to monitor interfacial changes of capacitance and resistance |
| US20140123774A1 (en) * | 2011-06-06 | 2014-05-08 | Hitachi High-Technologies Corporation | Automatic analyzer |
| JP2015094190A (en) * | 2013-11-14 | 2015-05-18 | パナソニックＩｐマネジメント株式会社 | Sanitary washing device |
-
2017
- 2017-05-22 CN CN201710361817.5A patent/CN108931283B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160548A (en) * | 1996-12-02 | 1998-06-19 | N K K Plant Kensetsu Kk | Detecting method for water level in water tank |
| JPH1164069A (en) * | 1997-08-19 | 1999-03-05 | Asahi Glass Co Ltd | Molten liquid level indicator |
| JP2006090928A (en) * | 2004-09-27 | 2006-04-06 | Jimutekku:Kk | Measuring method of liquid level or the like, and measuring device used therefor |
| CN101112820A (en) * | 2006-12-20 | 2008-01-30 | 珠海天威技术开发有限公司 | Detection circuit and ink box |
| CN101358868A (en) * | 2008-09-10 | 2009-02-04 | 南京林业大学 | Capacitance liquid level sensor and liquid level detector using the sensor |
| CN101694396A (en) * | 2009-01-23 | 2010-04-14 | 南京乐金熊猫电器有限公司 | Water level detecting device and method for dryer |
| CN101858770A (en) * | 2009-04-09 | 2010-10-13 | 深圳迈瑞生物医疗电子股份有限公司 | Liquid level detection device and sample adding system |
| CN102193032A (en) * | 2010-03-08 | 2011-09-21 | 上海海栎创微电子有限公司 | Self-capacitance change measuring circuit with high precision and high stability |
| JP2011252709A (en) * | 2010-05-31 | 2011-12-15 | Seiko Epson Corp | Liquid detecting device and liquid detecting method |
| US20120304761A1 (en) * | 2011-06-03 | 2012-12-06 | Denso Corporation | Fluid level measurement apparatus and system |
| US20140123774A1 (en) * | 2011-06-06 | 2014-05-08 | Hitachi High-Technologies Corporation | Automatic analyzer |
| WO2013009251A1 (en) * | 2011-07-08 | 2013-01-17 | Imego Ab | Method to use a probe to monitor interfacial changes of capacitance and resistance |
| JP2015094190A (en) * | 2013-11-14 | 2015-05-18 | パナソニックＩｐマネジメント株式会社 | Sanitary washing device |
Non-Patent Citations (1)
| Title |
|---|
| 唐艳芬: ""浅谈通用型工业锅炉远程监测数据采集装置"", 《中国高新技术企业》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332685A (en) * | 2019-06-27 | 2019-10-15 | 郑州商学院 | For controlling the method, apparatus and air conditioner indoor unit of humidification apparatus |
| CN110332685B (en) * | 2019-06-27 | 2021-05-18 | 郑州商学院 | Method and device for controlling humidifying equipment and air conditioner indoor unit |
| CN110608785A (en) * | 2019-08-22 | 2019-12-24 | 安徽省法米特物联技术有限公司 | Internet of things pressure liquid level meter and liquid level measurement method |
| CN110806246A (en) * | 2019-11-15 | 2020-02-18 | 深圳朗特智能控制股份有限公司 | Water level monitoring device, water level monitoring method and system thereof, and storage medium |
| CN111103623A (en) * | 2019-12-09 | 2020-05-05 | 九阳股份有限公司 | Water detection method of food processing machine |
| CN111854888A (en) * | 2020-07-25 | 2020-10-30 | 珠海格力电器股份有限公司 | Water level detection method and device, storage medium and kettle |
| CN111854888B (en) * | 2020-07-25 | 2021-07-02 | 珠海格力电器股份有限公司 | Water level detection method and device, storage medium and kettle |
| CN112461338A (en) * | 2020-11-18 | 2021-03-09 | 珠海格力电器股份有限公司 | Liquid level detection abnormity judgment device and method |
| CN112842075A (en) * | 2021-01-12 | 2021-05-28 | 珠海格力电器股份有限公司 | Liquid level detection method and device, storage medium and kettle |
| CN112857516A (en) * | 2021-01-12 | 2021-05-28 | 珠海格力电器股份有限公司 | Liquid level detection method and device, storage medium and kettle |
| CN112880772A (en) * | 2021-01-12 | 2021-06-01 | 珠海格力电器股份有限公司 | Water level detection device and method, storage medium and electric kettle |
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