CN103604225B - Liquid level sensor digitlization liquid level gathers self-adapting correction method - Google Patents
Liquid level sensor digitlization liquid level gathers self-adapting correction method Download PDFInfo
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- CN103604225B CN103604225B CN201310467557.1A CN201310467557A CN103604225B CN 103604225 B CN103604225 B CN 103604225B CN 201310467557 A CN201310467557 A CN 201310467557A CN 103604225 B CN103604225 B CN 103604225B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention discloses a kind of liquid level sensor digitlization liquid level and gather self-adapting correction method; The object of this invention is to provide a kind of liquid level sensor digitlization liquid level realizing the correction of high-low limit liquid level and protection by arranging level parameter digital value and gather self-adapting correction method; Be provided with public electrode zero level point, minimal protection point, the highest protection point and multiple water level point on a sensor; Adopt the digitized technology of linear liquid level sensor, the value analog scaling directly perceived represented by percentage and digital value display, by simulating liquid level acquisition parameter, adopt real-time automatic fractional expression operational formula: RV/K*100% after digitized processing; It has the features such as easy to use and reasonable in design.
Description
Technical field
The present invention relates to a kind of liquid level sensor digitlization liquid level and gather self-adapting correction method.
Background technology
At present on the market, the water tank of solar water heater is in upper water heating process, and it is adopt resistance-type or voltage-type two kinds of modes to read that liquid level sensor reads liquid level numerical value, and generally is actual value reading; But this liquid level sensor is when instability, the numerical value of display will produce certain deviation, makes the water level in water tank inaccurate; As above during water, water level has exceeded water tank peak level point, but the numerical value of display is not 100% full, causes water to overflow from water tank, thus wastes water resource.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, providing a kind of liquid level sensor digitlization liquid level realizing the correction of high-low limit liquid level and protection by arranging level parameter digital value to gather self-adapting correction method.
In order to achieve the above object, the liquid level sensor digitlization liquid level designed by the present invention gathers self-adapting correction method, is provided with public electrode zero level point, minimal protection point, the highest protection point and multiple water level point on a sensor; Adopt the digitized technology of linear liquid level sensor, the value analog scaling directly perceived represented by percentage and digital value display, by simulating liquid level acquisition parameter, real-time automatic fractional expression operational formula is adopted: RV/K*100% after digitized processing, wherein RV is level sensing digital value, K is the decile digital value of 5 ~ 100, this automatic fractional expression operational formula is used to carry out the setting of auto linear parametric distribution and the storage of 5 ~ 100 grades, realize liquid level Automatic parameter to correct and liquid level working control, and can correct it after first time automatic loading water.
Water level is normal operating range between minimal protection point and the highest protection point, will give the alarm, also will give the alarm higher than the highest protection point lower than minimal protection point.
As preferably, described minimal protection point is in the position of the automatic mark 20 ~ 50% of sensor, and the highest protection point is in the position of the automatic mark 80 ~ 100% of sensor.
The mode corrected is the one in manual correction, automatic calibration, correction of timing.
The described digitized technology of linear liquid level sensor is the one in stepless linear liquid level resistance, liquid level pressure mode, liquid level flowmeter formula technology.
Described level sensing digital value is the one in resistance value, magnitude of voltage, force value, current value.
This liquid level sensor digitlization liquid level gathers the principle of self-adapting correction method: water tank is when on first time, water is to the highest protection point, to give the alarm and automatically stop upper water, when in water tank be down to minimal protection point under water time, the prompting that will give the alarm will start upper water, not so will produce " empty burning " phenomenon, cause empty heating that instrument and equipment is damaged; Can correct after upper water terminates, when point digital value such as liquid level sensor display, can by automatic fractional expression operational formula: RV/K*100% calculates the actual numerical value of water level in water tank.
According to the above; the liquid level sensor digitlization liquid level of gained of the present invention gathers self-adapting correction method; by setting minimal protection point and the highest protection point; make in use convenient; the value analog scaling directly perceived that represents of this liquid level sensor show percent and digital value, can calculate the actual numerical value of the water level in water tank by automatic fractional expression operational formula simultaneously.Therefore, it has the features such as easy to use and reasonable in design.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that level sensing of the present invention gathers stepping;
Fig. 2 is Self-correc ting control schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 and Figure 2, the liquid level sensor digitlization liquid level that the present embodiment describes gathers self-adapting correction method, sensor 1 is provided with public electrode zero level point 2, minimal protection point 3, and this minimal protection point 3 is at the position of sensor 30%, the highest protection point 4, and this highest protection point 4 is in the position of sensor 100%, with the water level point 5 of 20 deciles, water level is normal operating range between minimal protection point 3 and the highest protection point 4, to give the alarm lower than minimal protection point 3, will give the alarm higher than the highest protection point 4; Adopt the digitized technology of linear liquid level sensor, the value analog scaling directly perceived represented by percentage and digital value display, by to liquid level acquisition parameter technology, real-time automatic fractional expression operational formula is adopted: RV/20*100% after digitized processing, wherein RV is level sensing digital value, K is 5 point digital values such as grade, this automatic fractional expression operational formula is used to carry out the setting of auto linear parametric distribution and the storage of 20 grades, realize liquid level Automatic parameter to correct and liquid level working control, and automatic calibration can be carried out to it after first time automatic loading water.
This liquid level sensor digitlization liquid level gathers the principle of self-adapting correction method: water tank on first time water to the highest protection point 100% time, to give the alarm and automatically stop upper water, when in water tank be down to minimal protection point 30% under water time, the prompting that will give the alarm will start upper water, not so " empty burning " phenomenon will be produced, cause empty heating that instrument and equipment is easily damaged, automatic calibration is carried out after upper water terminates, when liquid level sensor display etc. divides digital value, can by automatic fractional expression operational formula: RV/20*100% calculates the actual numerical value of water level in water tank.
Claims (7)
1. liquid level sensor digitlization liquid level gathers a self-adapting correction method, it is characterized in that: on sensor (1), be provided with public electrode zero level point (2), minimal protection point (3), the highest protection point (4) and multiple water level point (5); Adopt the digitized technology of linear liquid level sensor, the value analog scaling directly perceived represented by percentage and digital value display, by simulating liquid level acquisition parameter, real-time automatic fractional expression operational formula is adopted: RV/K*100% after digitized processing, wherein RV is level sensing digital value, K is the decile digital value of 5 ~ 100, this automatic fractional expression operational formula is used to carry out the setting of auto linear parametric distribution and the storage of 5 ~ 100 grades, realize liquid level Automatic parameter to correct and liquid level working control, and can correct it after first time automatic loading water.
2. a kind of liquid level sensor digitlization liquid level according to claim 1 gathers self-adapting correction method; it is characterized in that: water level is normal operating range between minimal protection point (3) and the highest protection point (4); to give the alarm lower than minimal protection point (3), also will give the alarm higher than the highest protection point (4).
3. a kind of liquid level sensor digitlization liquid level according to claim 1 gathers self-adapting correction method; it is characterized in that: described minimal protection point (3) is in the position of the automatic mark 20 ~ 50% of sensor (1), and the highest protection point (4) is in the position of the automatic mark 80 ~ 100% of sensor (1).
4. a kind of liquid level sensor digitlization liquid level according to claim 1 gathers self-adapting correction method, it is characterized in that: the mode of correction is the one in manual correction, automatic calibration, correction of timing.
5. a kind of liquid level sensor digitlization liquid level according to claim 1 gathers self-adapting correction method, it is characterized in that: the described digitized technology of linear liquid level sensor is the one in stepless linear liquid level resistance, liquid level pressure mode, liquid level flowmeter formula technology.
6. a kind of liquid level sensor digitlization liquid level according to claim 1 gathers self-adapting correction method, it is characterized in that: described level sensing digital value is the one in resistance value, magnitude of voltage, force value, current value.
7. a kind of liquid level sensor digitlization liquid level according to claim 1 gathers self-adapting correction method, it is characterized in that: water tank on first time water to the highest protection point (4) time, to give the alarm and automatically stop upper water, when in water tank be down to minimal protection point (3) under water time, the prompting that will give the alarm will start upper water, not so will produce " empty burning " phenomenon, cause empty heating that instrument and equipment is damaged; Can correct after upper water terminates, when point digital value such as liquid level sensor display, can by automatic fractional expression operational formula: RV/K*100% calculates the actual numerical value of water level in water tank.
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| CN201310467557.1A CN103604225B (en) | 2013-10-09 | 2013-10-09 | Liquid level sensor digitlization liquid level gathers self-adapting correction method |
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| CN201310467557.1A CN103604225B (en) | 2013-10-09 | 2013-10-09 | Liquid level sensor digitlization liquid level gathers self-adapting correction method |
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| CN103604225B true CN103604225B (en) | 2016-01-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104615023B (en) * | 2014-12-31 | 2018-04-27 | 重庆川仪自动化股份有限公司 | Intelligent setting method for level switch |
| CN104635770B (en) * | 2015-01-09 | 2017-05-24 | 山西太钢不锈钢股份有限公司 | Classifier control method based on pulp pump sump liquid level as main control parameter |
| CN111505202B (en) * | 2020-04-26 | 2023-05-26 | 广东省科学院测试分析研究所(中国广州分析测试中心) | Multifunctional diluting/titrating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587859A (en) * | 2004-07-16 | 2005-03-02 | 金蔚东 | Correcting method for solar water heater capacitance water level sensor measuring value |
| JP2012018138A (en) * | 2010-07-09 | 2012-01-26 | Sinfonia Technology Co Ltd | Testing apparatus for liquid tank level sensor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587859A (en) * | 2004-07-16 | 2005-03-02 | 金蔚东 | Correcting method for solar water heater capacitance water level sensor measuring value |
| JP2012018138A (en) * | 2010-07-09 | 2012-01-26 | Sinfonia Technology Co Ltd | Testing apparatus for liquid tank level sensor |
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