CN108663095A - Liquid level correction and detection method based on the induction of angle position - Google Patents
Liquid level correction and detection method based on the induction of angle position Download PDFInfo
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- CN108663095A CN108663095A CN201810357757.4A CN201810357757A CN108663095A CN 108663095 A CN108663095 A CN 108663095A CN 201810357757 A CN201810357757 A CN 201810357757A CN 108663095 A CN108663095 A CN 108663095A
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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
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- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses the liquid level correction and detection methods based on the induction of angle position, monitoring point A including being located at liquid case bottom and for placing preset level monitoring device, wherein, spacing of the monitoring point A in X-direction and Y direction between the physical centre of liquid case bottom point O is respectively horizontal spacing a and longitudinal pitch b；The level monitoring device include for detect in real time monitoring point A to the liquid level detection unit of the vertical height between liquid level, for detecting angle position detection unit of the liquid case with respect to inclined angle of heel α and trim angle β in X-direction and Y direction in real time and for the processing unit of data processing；It is cooperated by above-mentioned each unit to correct the inclined liquid level of liquid case, detect that the liquid level height value obtained is accurate, and error is small, while avoiding the error artificially observed, avoided liquid case and tilt on influence caused by liquid level detection.
Description
Technical field
The present invention relates to the technical field of liquid level amendment detection, the liquid level amendment inspection based on the induction of angle position is referred in particular to
Survey method.
Background technology
It is well known that detect nonstatic container in liquid level when, accuracy of detection is often by container lean
Influence.Liquid level error caused by inclination, relatively common situation such as automobile is in stopping on hill, same fuel tank excess oil
Amount, for headstock towards upward slope direction and headstock towards direction of fall, instrument board top tank oil mass, which is shown, just has apparent difference.
And the influence in marine fuel oil management aspect becomes apparent from, in ship loading/unloading goods, it is unloaded or be fully loaded with, trim by the bow or
Trim by the stern, the hydrologic regime difference etc. for loading and unloading two places, can all cause the trim and heel of ship, the detection to marine fuel oil storage
It will impact.The observation to inland navigation craft and statistics according to long-time, such as five meters wide, two meters of height, 10 tons or so of volume
Cargo tank, in the case where trapped fuel amount does not change, the liquid level of cargo tank is because of trim or heel, often poor 8 ~ 10 centimetres, this
A error height is converted into trapped fuel amount by table of tank capacities, is equivalent to the fuel oil of 800 ~ 1000kG.Due to the presence of error.For ship
Oceangoing ship operation, fuel management etc. cause prodigious puzzlement.
Currently, in terms of ship operation management and fuel management, ship is adopted to raise the management level with information based data
The liquid level gauge of collection, generally use electronic type measures liquid level, meets the electronic type liquid level used on ship in respect of pressure sensitive type
, the principles such as capacitive, ultrasonic type, laser class, radar type.The collected data of electronic liquid level gauge are in conjunction with ship
Cargo tank table of tank capacities is converted into trapped fuel amount.In order to reduce error, the installation site of the liquid level gauge of electronic type, which is generally housed within, is inclined
Position as small as possible is tiltedly influenced, but since mounting condition is limited, electronic liquid level gauge all can not be direct in the case of the overwhelming majority
Detect cargo tank bottom physics central point to liquid level liquid level, even if being mountable to cargo tank bottom physics central point, ship
Error influences still apparent caused by oceangoing ship tilts.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind can modifying factor ship inclination and caused by
Measurement error, the liquid level based on the induction of angle position correct measurement method.
In order to achieve the above purpose, the liquid level correction and detection method provided by the present invention based on the induction of angle position,
Monitoring point A including being located at liquid case bottom and for placing preset level monitoring device, wherein monitoring point A is in X-direction
And the spacing in Y direction between the physical centre of liquid case bottom point O is respectively horizontal spacing a and longitudinal pitch b；The liquid
Position monitoring device include for detect in real time monitoring point A to the liquid level detection unit of the vertical height between liquid level, for real-time
Detect angle position detection unit and use of the liquid case with respect to inclined angle of heel α and trim angle β in X-direction and Y direction
In the processing unit of data processing；It is cooperated by above-mentioned each unit to correct the inclined liquid level of liquid case, wherein liquid
Position height correction detection method the step of include：The liquid level detection unit detects monitoring point A to the vertical height between liquid level in real time
H is spent, and is transmitted to processing unit；Angle position detection unit detects the angle of heel α and trim angle β of liquid case in real time, and passes
Transport to processing unit, processing unit be based on vertical height h, angle of heel α, trim angle β, horizontal spacing a and longitudinal pitch b into
Row data correction is to calculate liquid level p when liquid outlet tank does not tilt.
Further, the vertical height h is the monitoring point A spacing between the vertical intersection points B of liquid level in the vertical direction
Value, monitoring point A intersects at monitoring origin J with liquid level in the Z-axis direction and the distance between monitoring point A and monitoring origin J are the
One vertical spacing c, wherein line of the vertical intersection points B between parallel X/Y plane direction and monitoring point A and monitoring origin J
AJ intersects at parallel intersection point K, and the processing unit calculates separately out prison based on vertical height h, angle of heel α and trim angle β
Distance values between measuring point A to parallel intersection point K, parallel intersection point K extremely monitoring origin J, wherein monitoring point A is between parallel intersection point K
Distance values away from value plus parallel intersection point K to monitoring origin J are equal to the first vertical spacing c.
Further, the monitoring point A along parallel liquid level direction and Z axis intersection point L, and intersection point L and physical centre point O it
Between distance be the second vertical spacing d, wherein the processing module be based on angle of heel α, trim angle β, horizontal spacing a and
Longitudinal pitch b is to calculate the second vertical spacing d.
Further, the processing module be based on the first vertical vertical spacing d of spacing c and second with corrected Calculation liquid outlet tank not
Liquid level p when inclination, wherein between the liquid level p when liquid case does not tilt is the first vertical spacing c and second vertical
Away from the difference between d.
Further, angle position detection unit is for detecting angular speed of the liquid case respectively in X-direction and Y direction
Acceleration transducer, to according to the angular speed detected determine angle of heel α and trim angle β respectively.
The present invention uses above-mentioned scheme, advantage to be：It is based on vertical height h, Angle of Heel through the processing unit
It spends α, trim angle β, horizontal spacing a and longitudinal pitch b and carries out data correction to calculate liquid level when liquid outlet tank does not tilt
P passes through the offset distance of physical centre's point of the point to liquid case bottom that is, by detecting the liquid level of liquid case bottom arbitrary point
From so that the true liquid level for obtaining physical centre's point of liquid outlet tank detects the liquid level obtained to ensure data consistency
Height value is accurate, and error is small, while avoiding the error artificially observed, and avoids liquid case and tilts to shadow caused by liquid level detection
It rings.
Description of the drawings
Fig. 1 is the structural schematic diagram when liquid case of the present invention does not tilt.
Fig. 2 is the structural schematic diagram when liquid case of the present invention is tilted along X-direction and Y direction.
Fig. 3 is the structural schematic diagram when liquid case of the present invention is tilted along X-direction or Y direction..
Wherein, 1- liquid cases, 2- liquid levels.
Specific implementation mode
With reference to specific embodiment, the present invention is further illustrated.
Shown in attached drawing 1, in the present embodiment, based on the liquid level correction and detection method of angle position induction, include
Be located at and also want to bottom and for placing the monitoring point A of the liquid level detection device being preset with, wherein monitoring point A X-direction with
Spacing in Y direction between the physical centre point O of 1 bottom of liquid case is respectively horizontal spacing a and longitudinal pitch b, in order to just
In the understanding to example scheme, the origin of the physical centre point O of the present embodiment as XYZ coordinate system crosses physical centre point O's
Lateral then be used as X-direction, longitudinal direction for crossing physical centre point O is then used as Y direction, crosses the vertical then as Z of physical centre point O
Axis direction；Monitoring point A can select suitable position according to 1 situation of practical liquid case, and in the present embodiment, monitoring point setting is existed
The first quartile of XYZ coordinate system, thus in a practical situation, by predefining the location of monitoring point A to determine cross
To the numerical value of spacing a and longitudinal pitch b.
In the present embodiment, level monitoring device includes for detecting monitoring point A in real time to the vertical height between liquid level 2
Liquid level detection unit, in real time detect liquid case 1 inclined angle of heel α and trim angle in X-direction and Y direction
Angle position detection unit, the processing unit for data processing and the data outputting unit for data output of β, wherein liquid
Position detection unit, angle position detection unit and data outputting unit are communicated with processing unit.In addition, starting level sensing dress
When setting, the numerical value of the horizontal spacing a detected in advance and longitudinal pitch b is manually entered into processing unit（It is single through processing
The numerical value of horizontal spacing a and longitudinal pitch b are input to processing unit by the input module that member is preset with）.
It is cooperated by liquid level detection unit, angle position detection unit and data outputting unit inclined to correct liquid case 1
Liquid level, wherein the liquid level correction and detection method of the present embodiment includes following steps：
Liquid level detection unit detects monitoring point A to the vertical height h between liquid level 2 in real time, and is transmitted to processing unit, more detects
Unit detects the inclined angle of heel α and trim angle β in X-direction and Y direction of liquid case 1 in real time, and is transmitted to processing
Unit, to which processing unit is based on vertical height h, angle of heel α, trim angle β, horizontal spacing a and longitudinal pitch b into line number
According to liquid when correcting to calculate liquid level p when liquid outlet tank 1 does not tilt, then not tilted liquid case 1 by data outputting unit
Position height p outputs, in order to testing staff's real time inspection.
In the present embodiment, vertical height h be monitoring point A in the vertical direction between the vertical intersection points B of liquid level 2 between
Away from value；Monitoring point A intersects at monitoring origin J with liquid level 2 in the Z-axis direction and the distance between monitoring point A and monitoring origin J are
First vertical spacing c, wherein line AJ of the vertical intersection points B between parallel X/Y plane direction and monitoring point A and monitoring origin J
Intersect at parallel intersection point K, processing unit calculates separately monitoring point A to flat based on vertical height h, angle of heel α and trim angle β
Distance values between row intersection point K, parallel intersection point K extremely monitoring origin J, wherein the distance values of monitoring point A to parallel intersection point K add
The distance values of parallel intersection point K to monitoring origin J are equal to the first vertical spacing c.
For the ease of above-mentioned processing unit being calculated the understanding of the first vertical spacing c, it is existing it is special to its principle do into
One step explanation：According to Pythagorean theorem and solid line face relationship it can be seen that, after 1 run-off the straight of liquid case, vertical intersection points B it is opposite with
X/Y plane is happened at the inclination in X-direction and Y direction（Substantial line AB is always vertical direction, due to XYZ coordinate system
It is inclined with liquid case 1 with synchronization, thus according to movement principle of relativity, to keep vertical intersection points B opposite relative to XYZ coordinate system
It tilts）, to be calculated according to angle of heel α, trim angle β and vertical height h：Monitoring point A is between parallel intersection point K
Line AK and vertical height h between relationship be：
,
To obtain：；
Parallel intersection point K extremely monitors the line KJ between origin J and the position relationship between vertical height H is：;It can thus be concluded that go out the first vertical spacing c with it is vertical
Relationship between height h is：I.e.：
。
In the present embodiment, monitoring point A is along the intersection point L in 2 direction of parallel liquid level and Z axis, and intersection point L and physical centre's point
The distance between O is the second vertical spacing d, wherein processing module is based on angle of heel α, trim angle β, horizontal spacing a and indulges
To spacing b to calculate the second vertical spacing d, according to geometrical relationship it can be seen that, after 1 run-off the straight of liquid case, due to XYZ coordinate system
It is to be tilted with liquid case 1 with synchronous, so that relative displacement occurs in the vertical direction for monitoring point A and physical centre point O, so as to
Show that the relationship between the second vertical spacing d and horizontal spacing a and longitudinal pitch b is：。
According to the above-mentioned calculated first vertical vertical spacing d of spacing c and second of institute, between processing module is based on first vertically
Liquid level p when not tilted with corrected Calculation liquid outlet tank 1 away from the vertical spacing d of c and second, wherein liquid when liquid case 1 does not tilt
Differences of the position height p between the first vertical vertical spacing d of spacing c and second, i.e.,：Liquid level p when liquid case 1 does not tilt with
Relationship between the first vertical vertical spacing d of spacing c and second is：, so as to obtain：
;
For the ease of understanding above-mentioned scheme, three kinds of specific implementation modes are now enumerated in order to based on the induction of angle position
The understanding of liquid level correction and detection method.
Situation one：
As shown in Fig. 3, when liquid case 1 is tilted with respect to X-direction and opposite Y direction does not tilt, the detection unit detection of angle position
To angle of heel α, liquid level detection unit detects vertical height h, then can obtain,
First vertical spacing is：；
Second vertical spacing is：；
Liquid level p when liquid case does not tilt：。
Situation two：
As shown in Fig. 3, when liquid case 1 is tilted with respect to Y direction and opposite X-direction does not tilt, the detection unit detection of angle position
To trim angle β, liquid level detection unit detects vertical height h, then can obtain：
First vertical spacing is：；
Second vertical spacing is：；
Liquid level p when liquid case does not tilt：。
Situation three：
As shown in Fig. 2, when liquid case 1 is tilted with respect to X-direction and Y direction, angle position detection unit detects angle of heel α
With trim angle β, liquid level detection unit detects vertical height h, then can obtain,
First vertical spacing is：；
Second vertical spacing is：；
Liquid level p when liquid case does not tilt：
。
In the present embodiment, angle position detection unit is for detecting angle of the liquid case 1 respectively in X-direction and Y direction
The acceleration transducer of speed, to determine angle of heel α and trim angle β respectively according to the angular speed detected.
In the present embodiment, liquid level detection unit can be pressure sensitive sensor, the liquid level detection unit packet of the present embodiment
Include but be not limited to the data sampling sensors such as radar type liquid-level gauge, pressure-type liquid level gauge, those skilled in the art can be according to being adopted
The difference for acquiring sensor, equivalence replacement appropriate is made to the technical solution of the application, to according to the sensing used
The corresponding detected value that device is detected is to determine vertical height h.
Liquid outlet tank is calculated when not tilting by above-mentioned correction and detection method one, at physical centre's point position of liquid case
True liquid level, liquid level p when as liquid case 1 does not tilt make liquid case level sensing so as to avoid liquid case inclination
At influence, it is ensured that detected liquid level height value is accurate and error is small；And it solves monitoring point A to be not directly detected
The real engineering problem of physical centre's point of liquid case.
The embodiment of the above is only presently preferred embodiments of the present invention, not does limit in any form to the present invention
System.Any technical person familiar with the field utilizes the skill of the disclosure above without departing from the scope of the technical proposal of the invention
Art content makes more possible variations and retouching to technical solution of the present invention, or modification is the equivalent embodiment of the present invention.
Therefore all contents without departing from technical solution of the present invention, equivalent equivalence changes, should all be covered by made by thinking according to the present invention
In protection scope of the present invention.
Claims (5)
1. the liquid level correction and detection method based on the induction of angle position, it is characterised in that：Including being located at liquid case（1）It bottom and is used for
Place the monitoring point A of preset level monitoring device, wherein monitoring point A in X-direction and Y direction with liquid case（1）Bottom
Spacing between the physical centre point O in portion is respectively horizontal spacing a and longitudinal pitch b；The level monitoring device includes useful
In detection monitoring point A in real time to liquid level（2）Between vertical height liquid level detection unit, in real time detect liquid case（1）Opposite X
The angle position detection unit of inclined angle of heel α and trim angle β and the place for data processing in axis direction and Y direction
Manage unit；It is cooperated by above-mentioned each unit to correct liquid case（1）Inclined liquid level, wherein liquid level amendment
The step of detection method includes：
The liquid level detection unit detects monitoring point A to liquid level in real time（2）Between vertical height h, and be transmitted to processing unit；Institute
It states angle position detection unit and detects liquid case in real time（1）Angle of heel α and trim angle β, and be transmitted to processing unit, processing unit
Data correction is carried out to calculate liquid based on vertical height h, angle of heel α, trim angle β, horizontal spacing a and longitudinal pitch b
Case（1）Liquid level p when not tilting.
2. the liquid level correction and detection method according to claim 1 based on the induction of angle position, it is characterised in that：It is described perpendicular
Straight height h be monitoring point A in the vertical direction with liquid level（2）Vertical intersection points B between distance values, monitoring point A is in Z-direction
Upper and liquid level（2）It intersects at monitoring origin J and the distance between monitoring point A and monitoring origin J is the first vertical spacing c, wherein
Line AJ of the vertical intersection points B between parallel X/Y plane direction and monitoring point A and monitoring origin J intersects at parallel intersection point K,
The processing unit is based on vertical height h, angle of heel α and calculates separately out monitoring point A to parallel intersection point K with trim angle β, puts down
Distance values between row intersection point K extremely monitoring origin J, wherein the distance values of monitoring point A to parallel intersection point K add parallel intersection point K extremely
The distance values for monitoring origin J are equal to the first vertical spacing c.
3. the liquid level correction and detection method according to claim 2 based on the induction of angle position, it is characterised in that：The prison
Measuring point A is along parallel liquid level（2）The intersection point L in direction and Z axis, and the distance between intersection point L and physical centre point O are second vertical
Spacing d, wherein the processing module is based on angle of heel α, trim angle β, horizontal spacing a and longitudinal pitch b to calculate the
Two vertical spacing d.
4. the liquid level correction and detection method according to claim 3 based on the induction of angle position, it is characterised in that：The place
It manages module and is based on the first vertical vertical spacing d of spacing c and second with corrected Calculation liquid outlet tank（1）Liquid level p when not tilting,
Wherein, the liquid case（1）Differences of the liquid level p between the first vertical vertical spacing d of spacing c and second when not tilting.
5. the liquid level correction and detection method according to claim 1 based on the induction of angle position, it is characterised in that：The angle
Position detection unit is for detecting liquid case（1）The acceleration transducer of angular speed in X-direction and Y direction respectively, from
And angle of heel α and trim angle β are determined according to the angular speed detected respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810357757.4A CN108663095A (en) | 2018-04-20 | 2018-04-20 | Liquid level correction and detection method based on the induction of angle position |
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| CN201810357757.4A CN108663095A (en) | 2018-04-20 | 2018-04-20 | Liquid level correction and detection method based on the induction of angle position |
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Cited By (6)
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| CN109211494A (en) * | 2018-11-01 | 2019-01-15 | 华霆（合肥）动力技术有限公司 | Leak detecting device and method |
| CN111217042A (en) * | 2020-02-24 | 2020-06-02 | 太原理工大学 | Tank complex liquid level metering device and application method |
| CN111735517A (en) * | 2020-07-13 | 2020-10-02 | 浙江聚励云机械科技有限公司 | Liquid level measuring method |
| CN111750952A (en) * | 2020-07-07 | 2020-10-09 | 北京中位科技有限公司 | Novel device and method for monitoring oil quantity of vehicle oil tank |
| CN114216498A (en) * | 2021-11-19 | 2022-03-22 | 领翌技术(横琴)有限公司 | IBC bucket state detection device |
| CN117571085A (en) * | 2023-12-06 | 2024-02-20 | 广州市航易信息科技有限公司 | Automatic liquid level correction mechanism for large ship and method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211494A (en) * | 2018-11-01 | 2019-01-15 | 华霆（合肥）动力技术有限公司 | Leak detecting device and method |
| CN109211494B (en) * | 2018-11-01 | 2020-05-26 | 华霆（合肥）动力技术有限公司 | Leak detection device and method |
| CN111217042A (en) * | 2020-02-24 | 2020-06-02 | 太原理工大学 | Tank complex liquid level metering device and application method |
| CN111750952A (en) * | 2020-07-07 | 2020-10-09 | 北京中位科技有限公司 | Novel device and method for monitoring oil quantity of vehicle oil tank |
| CN111735517A (en) * | 2020-07-13 | 2020-10-02 | 浙江聚励云机械科技有限公司 | Liquid level measuring method |
| CN111735517B (en) * | 2020-07-13 | 2023-10-20 | 浙江聚励云机械科技有限公司 | Liquid level measuring method |
| CN114216498A (en) * | 2021-11-19 | 2022-03-22 | 领翌技术(横琴)有限公司 | IBC bucket state detection device |
| CN117571085A (en) * | 2023-12-06 | 2024-02-20 | 广州市航易信息科技有限公司 | Automatic liquid level correction mechanism for large ship and method thereof |
| CN117571085B (en) * | 2023-12-06 | 2024-05-28 | 广州市航易信息科技有限公司 | Automatic liquid level correction mechanism for large ship and method thereof |
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