CN109959467A - A kind of universe dam determines Wen Fangfa - Google Patents
A kind of universe dam determines Wen Fangfa Download PDFInfo
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- CN109959467A CN109959467A CN201910229591.2A CN201910229591A CN109959467A CN 109959467 A CN109959467 A CN 109959467A CN 201910229591 A CN201910229591 A CN 201910229591A CN 109959467 A CN109959467 A CN 109959467A
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- 238000000034 method Methods 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 239000013307 optical fiber Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 8
- 238000007634 remodeling Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims description 3
- 238000002790 cross-validation Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000005538 encapsulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001931 thermography Methods 0.000 description 4
- 238000004445 quantitative analysis Methods 0.000 description 3
- 238000012217 deletion Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Radiation Pyrometers (AREA)
Abstract
The present invention provides a kind of universe dams to determine Wen Fangfa, including thermometric, line thermometric, face thermometric arrangement.Point, line, surface thermometric mode is combined for the first time, can not only real-time online, inside automatic monitor for continuously concrete dam and surface temperature, be also based on observed temperature data, carry out temperature interpolation, Real-time Reconstruction concrete dam two dimension, three-dimensional true temperature field, are of great significance.Present invention improves over the past to arrange point type thermometer and distribution type fiber-optic by experience in concrete dam block, provides the embedded foundation of dam temperature monitoring instrument science and the method for temperature.Three kinds of thermometric modes have their own advantages, as thermometer can be with flexible arrangement inside dam concrete, temperature-measuring optical fiber electromagnetism interference, long service life, sensitivity and precision are high, non-contact remote temperature measurement of thermal infrared imager etc., mounting arrangements rationally are carried out to three, it can efficient, economic, the accurate point, line, surface temperature for obtaining dam universe.
Description
Technical field
The present invention relates to Dam Monitoring technical fields, determine Wen Fangfa more specifically to a kind of universe dam.
Background technique
In the prior art, mass concrete temperature monitoring has traditional thermoelectricity occasionally thermal resistance thermometer monitoring and base
The means such as the fiber-optic monitoring in distributed optical fiber temperature sensor technology and the infrared measurement of temperature based on theory of infrared radiation.Conventional point
Formula thermometer can only carry out point type temperature measurement, and distributed optical fiber temperature measurement technology can monitor the temperature of concrete along optical fiber,
And the infra-red radiation that infrared temperature-test technology can be emitted by being detected body surface, obtain the Temperature Distribution of body surface.So
And conventional mass concrete temperature monitoring major part temperature dependent meter monitoring, a small amount of engineering application distribution type fiber-optic into
Trip temperature monitoring cannot achieve the true temperature field reconstruct inside dam concrete.And by three kinds of temp measuring methods with phase knot
The mode of conjunction was not carried out in mass concrete dam block at present；In addition, in concrete dam block, how design arrangement
Point type thermometer and distribution type fiber-optic, rely primarily on experience, lack the embedded foundation of science and the method for temperature.
Therefore, it needs a kind of concrete dam universe and determines Wen Fangfa, the arrangement of the determination temperature monitor device of scientific quantitative analysis
Mode and path, to realize temperature precise measurement in concrete dam block.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of universe dams to determine Wen Fangfa, by scientific and reasonable big
Thermometer, temperature-measuring optical fiber are buried in dam and combines infrared measurement of temperature equipment, obtain dam concrete internal point, line and dam
The true temperature on surface, to reconstruct dam true temperature field, science carries out fixed temperature to concrete dam block.
In order to solve the above-mentioned technical problem, it is proposed that scheme it is as follows:
A kind of universe dam determines Wen Fangfa, including thermometric arrangement, line thermometric arrangement, face thermometric arrangement are mixed to obtain dam
Solidifying soil internal point, line and the true temperature on dam surface；Wherein, described thermometric is arranged as burying water conservancy project number in dam
Word thermometer, described thermometric arrangement include:
A, a dam block apex coordinate is set as (xi,yi,zi), i=1,2,3,4 ..., n；
B, inside dam block, m point, (x are randomly choosedh,yh, zh), h=1,2,3 ..., m, and assign initial temperature value
Th, then known temperature point information (x is obtainedh,yh,zh,Th)；
C, using the temperature data of the m temperature spot, using 3 dimension space interpolation methods, interpolation obtains the temperature of entire dam block
Spend field；
D, the accuracy judgment criteria of remodeling temperature field: cross-validation method is used, successively from m temperature spot of initial selected
Middle deletion a bit, is denoted as (xj,yj,zj), other temperature spots remain unchanged, and go out entire dam block with remaining m-1 temperature point interpolation
Temperature field, and by (xj,yj,zj) at temperature reconstruction value Tj ※With initial value TjComparison obtains the absolute value differences Δ T of the twoj
=| Tj ※-Tj|, then deleted from all initial temperature points again in addition, and with residuals temperatures point remodeling temperature field, and with
The initial temperature value of the point compares, and is repeated, and until all temperature spots were compared once, finally obtains m Δ Tj, ask
Its mean difference Δ T※=1/m ∑ Δ Tj, j=1,2,3 ..., m；If Δ T※Smaller, the temperature field of reconstruct is more accurate；
E, initial temperature point number m and temperature measuring point position (xh, y are constantly adjustedh,zh), obtain the smallest Δ T※To get
Quantity m and water conservancy project digital thermometer burial place (x is buried to optimal water conservancy project digital thermometerh,yh,zh)。
Further, temperature measuring point position constitutes the buried line of optical fiber, i.e., is arranged to obtain line thermometric arrangement by a thermometric.
Further, face thermometric includes infrared measurement of temperature, using thermal infrared imager, for monitor dam upstream and downstream face and
The temperature of upper surface.
Further, the dam block is Arbitrary 3 D body.
Further, the 3 dimension space interpolation method include inverse distance weighted interpolation method, nearest neighbor point interpolation method, gram in
Lattice interpolation method, ternary higher order functionality approach method etc..
Further, the mounting distance L of thermal infrared imager and dam1Distance L is demarcated with the thermal imaging system itself2Between it is full
Sufficient L1≤L2。
Further, the water conservancy project digital thermometer include temperature sensor, temperature sensor wires, the first package tube,
In second package tube and encapsulating material, the temperature sensor and the temperature sensor wires with the temperature sensor phase
Connecting pin even is packaged in first package tube, and second package tube is packaged on the outside of first package tube, and
Second package tube surrounds first package tube, forms the first package cavity, first envelope in first package tube
The second package cavity, first package cavity and second encapsulation are formed between the outer wall of tubulature and the second encapsulation inside pipe wall
The encapsulation encapsulating material in chamber.
The beneficial effects of the present invention are: arrangement and road of the present invention by the determination temperature monitor device of scientific quantitative analysis
Diameter obtains dam concrete internal point, line and the true temperature on dam surface, realizes that temperature is accurately surveyed in concrete dam block
Amount, to reconstruct dam true temperature field.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the premise made the creative labor below
Under, other attached drawings can also be obtained according to the attached drawing of offer.
Fig. 1 is point thermometric coordinate correspondence relationship schematic diagram of the invention；
Fig. 2 is water conservancy project digital thermometer of the invention, temperature-measuring optical fiber, thermal infrared imager general arrangement schematic.
Wherein, 1 is optical fiber, and 2 be water conservancy project digital thermometer, and 3 be thermal infrared imager.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention is directed to the temperature monitoring problem of current dam concrete, passes through the determination temperature monitor device of scientific quantitative analysis
Arrangement and path, so that the measurement of concrete dam block point, line, surface temperature is realized, to reconstruct dam true temperature field.
(1) thermometric, line thermometric arrangement are put
1, as shown in Figure 1, setting a dam block apex coordinate as (xi,yi,zi), (note: dam block can be by i=1,2,3,4 ..., n
Arbitrary 3 D body).
2, inside dam block, m point, (x are randomly choosedh,yh,zh), h=1,2,3 ..., m, and assign initial temperature value
Th, then known temperature point information (x is obtainedh,yh,zh,Th)。
3, using the temperature data of the m temperature spot, using 3 dimension space interpolation methods (such as inverse distance weighted interpolation method, most
Neighbor Points interpolation method, kriging analysis method, ternary higher order functionality approach method etc.), interpolation obtains the temperature field of entire dam block.
4, the accuracy judgment criteria of remodeling temperature field: cross-validation method is used, successively from m temperature spot of initial selected
Middle deletion a bit, is denoted as (xj,yj,zj), other temperature spots remain unchanged, and go out entire dam block with remaining m-1 temperature point interpolation
Temperature field, and by (xj,yj,zj) at temperature reconstruction value Tj ※With initial value TjComparison obtains the absolute value differences Δ T of the twoj
=| Tj ※-Tj|, it then deletes from all initial temperature points and in addition (was not deleted) a bit again, and reconstructed with residuals temperatures point
Temperature field, and comparing with the initial temperature value of the point, is repeated, until all temperature spots were compared once, it is final must
To m Δ Tj, seek its mean difference Δ T※=1/m ∑ Δ Tj, (j=1,2,3 ..., m), Δ T※Smaller, the temperature field of reconstruct is got over
Accurately.
5, constantly adjustment initial temperature point number m and temperature spot position (xj,yj,zj), obtain the smallest Δ T※To get
Quantity m and water conservancy project digital thermometer burial place (x is buried to optimal water conservancy project digital thermometerj,yj,zj), wherein water conservancy project
The position of digital thermometer may be constructed the buried line of optical fiber, i.e., is arranged to obtain line thermometric arrangement by a thermometric.
(2) face thermometric is arranged
As shown in Fig. 2, face thermometric is mainly infrared measurement of temperature: infrared measurement of temperature equipment is commonly thermal infrared imager, in dam
In engineering, it can be used for monitoring dam upstream and downstream face and pour the temperature in face.In actual installation, in order to reduce infrared thermal imagery
The influence of instrument temperature measurement accuracy, should be by the mounting distance (L of thermal imaging system and dam1) demarcate with thermal imaging system itself apart from (L2) protect
Hold it is identical or be less than calibration distance, i.e. L1≤L2.And by the relationship of the range of dam and thermal infrared imager monitoring range, close
Removing the work sets quantity and the position of thermal imaging system.
The water conservancy project digital thermometer includes temperature sensor, temperature sensor wires, the first package tube, the second package tube
And encapsulating material, the connecting pin being connected on the temperature sensor and the temperature sensor wires with the temperature sensor
It is packaged in first package tube, second package tube is packaged on the outside of first package tube, and second envelope
First package tube is surrounded in tubulature, forms the first package cavity, the outer wall of first package tube in first package tube
And second form the second package cavity between encapsulation inside pipe wall, encapsulation in first package cavity and second package cavity
The encapsulating material.
Advantages of the present invention and effect:
1. the present invention for the first time combines point, line, surface thermometric mode, can not only real-time online, automatic monitor for continuously coagulation
Earth dam inside and surface temperature, are also based on observed temperature data, carry out temperature interpolation, Real-time Reconstruction concrete dam two
Dimension, three-dimensional true temperature field, are of great significance.
Point type thermometer and distribution type fiber-optic are arranged in concrete dam block by experience 2. improving over, provide temperature
Spend the method for the embedded foundation and temperature of monitoring instrument science.
3. three kinds of thermometric modes have their own advantages, if thermometer can be with flexible arrangement inside dam concrete, temperature-measuring optical fiber
Electromagnetism interference, long service life, sensitivity and precision are high, non-contact remote temperature measurement of thermal infrared imager etc., rationally
Three is laid, it can efficient, economic, the accurate point, line, surface temperature for obtaining dam universe.
Finally, it is to be noted that, herein, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device class embodiment,
Since it is basically similar to the method embodiment, so being described relatively simple, related place is said referring to the part of embodiment of the method
It is bright.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
The flow chart and block diagram in the drawings show the method, apparatus of multiple embodiments according to the present invention and computer journeys
The architecture, function and operation in the cards of sequence product.In this regard, each box in flow chart and block diagram can generation
A part of one module, section or code of table, it is executable for realizing the computer of logic function comprising one or more
Instruction.It should also be noted that in some implementations as replacements, function marked in the box can also be to be different from attached drawing
The sequence marked occurs.It is also noted that the combination of each box or box in block diagram and flow chart, can use execution
Defined function or the dedicated hardware based system of movement realize, or can use specialized hardware and computer instruction
Combination is to realize.
Claims (6)
1. a kind of universe dam determines Wen Fangfa, it is characterised in that: the method includes a thermometric arrangement, line thermometric arrangement, faces to survey
Stupe is set to obtain the true temperature of dam concrete internal point, line and dam surface；Wherein, described thermometric is arranged as
Water conservancy project digital thermometer is buried in dam, described thermometric arrangement includes:
A, a dam block apex coordinate is set as (xi,yi,zi), i=1,2,3,4 ..., n；
B, inside dam block, m point, (x are randomly choosedh,yh,zh), h=1,2,3 ..., m, and assign initial temperature value Th, then
To known temperature point information (xh,yh,zh,Th)；
C, using the temperature data of the m temperature spot, using 3 dimension space interpolation methods, interpolation obtains the temperature field of entire dam block；
D, the accuracy judgment criteria of remodeling temperature field: cross-validation method is used, is successively deleted from m temperature spot of initial selected
Except a bit, being denoted as (xj,yj,zj), other temperature spots remain unchanged, and the temperature of entire dam block is gone out with remaining m-1 temperature point interpolation
Field is spent, and by (xj,yj,zj) at temperature reconstruction value Tj ※With initial value TjComparison obtains the absolute value differences Δ T of the twoj=|
Tj ※-Tj|, then deleted from all initial temperature points again in addition, and with residuals temperatures point remodeling temperature field, and with the point
Initial temperature value comparison, be repeated, until all temperature spots were compared once, finally obtain m Δ Tj, ask it flat
Equal difference DELTA T※=1/m ∑ Δ Tj, j=1,2,3 ..., m；If Δ T※Smaller, the temperature field of reconstruct is more accurate；
E, constantly adjustment initial temperature point number m and temperature measuring point position (xh,yh,zh), obtain the smallest Δ T※To get to most
Excellent water conservancy project digital thermometer buries quantity m and water conservancy project digital thermometer burial place (xh,yh,zh)。
2. according to the method described in claim 1, it is characterized by: temperature measuring point position constitutes the buried line of optical fiber, i.e., by point
Thermometric is arranged to obtain line thermometric arrangement.
3. according to the method described in claim 1, it is characterized by: face thermometric includes infrared measurement of temperature, using thermal infrared imager, use
Temperature in monitoring dam upstream and downstream face and upper surface.
4. according to the method described in claim 1, it is characterized by: the dam block is Arbitrary 3 D body.
5. according to the method described in claim 1, it is characterized by: the 3 dimension space interpolation method includes that inverse distance-weighting is inserted
Value method, nearest neighbor point interpolation method, kriging analysis method, ternary higher order functionality approach method etc..
6. according to the method described in claim 3, it is characterized by: the mounting distance L of thermal infrared imager and dam1With the heat
As instrument itself demarcates distance L2Between meet L1≤L2。
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|---|---|---|---|
| CN201910229591.2A CN109959467B (en) | 2019-03-25 | 2019-03-25 | Temperature setting method for universal dam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229591.2A CN109959467B (en) | 2019-03-25 | 2019-03-25 | Temperature setting method for universal dam |
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| CN109959467B CN109959467B (en) | 2020-01-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110440950A (en) * | 2019-07-29 | 2019-11-12 | 湖北省水利水电规划勘测设计院 | Mass concrete temperature monitoring visualization system and method based on optical fiber temperature-measurement |
| CN112082673A (en) * | 2020-09-21 | 2020-12-15 | 清华大学 | Long-term wireless temperature measurement system of dam |
| CN113984245A (en) * | 2021-10-26 | 2022-01-28 | 湖南大学 | Method and system for detecting temperature and reconstructing temperature field of data center machine room |
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