CN116045830A - Automatic measuring system for door-span type crack development - Google Patents
Automatic measuring system for door-span type crack development Download PDFInfo
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- CN116045830A CN116045830A CN202211024671.2A CN202211024671A CN116045830A CN 116045830 A CN116045830 A CN 116045830A CN 202211024671 A CN202211024671 A CN 202211024671A CN 116045830 A CN116045830 A CN 116045830A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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Abstract
The invention relates to a door span type automatic crack development measuring system, which comprises fixing modules, a detection module and a control module, wherein the fixing modules are used for fixing the detection modules on two sides of a crack so as to keep the detection modules stable; the support module supports and bears the detection assembly; the data acquisition module acquires distance data of the first distance measuring sensor and the second supporting cover vertical panel and distance data of the second distance measuring sensor and the second supporting cover inclined panel; the analysis module analyzes and calculates the distance data to obtain the expansion length data of the crack in the direction parallel to the horizontal direction and the sedimentation depth data perpendicular to the horizontal direction, and evaluates the development state of the crack according to the expansion length data and the sedimentation depth data. Through fixing the detection component in the crack both sides, support the cover and support range sensor, gather data through wireless transmission, carry out analysis calculation to data at last, realized the automated measurement to the crack, improved the evaluation efficiency to the development state of crack.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a door span type automatic crack development measurement system.
Background
In the construction materials of modern buildings, concrete is widely used because of its good fluidity, cohesiveness, water retention, high strength and durability, but under the influence of factors such as temperature difference, non-uniformity of mixing degree, impurities, etc., cracks are generated on the surface of the concrete, and the existence of the cracks will reduce the bearing capacity, safety, waterproofness, durability, etc. of the concrete structure, so it is necessary to measure the concrete cracks and confirm the development state of the cracks.
The seed crack measuring device disclosed in patent document CN202111408848.4 includes: the data acquisition part comprises a first shell and a contact type image sensor arranged in the first shell, the first shell is provided with a measuring area, and the contact type image sensor acquires width data of a crack through the measuring area; a data transmission line; the control part is in signal connection with the data acquisition part through a data transmission line, and comprises a second shell and a distance sensor, wherein the distance sensor is arranged in the second shell, and at least one part of the distance sensor is exposed out of the second shell so as to measure the length data of the crack.
In the prior art, when the length data of the crack is acquired, the contact image sensor is used for acquiring, but the manual operation is needed to align the datum line of the contact image sensor with the crack, the acquired length data is transmitted to the control part, and the efficiency of evaluating the development state of the crack is lower.
Disclosure of Invention
Therefore, the invention provides a door span type automatic crack development measuring system which can solve the problem of low evaluation efficiency of the development state of cracks.
To achieve the above object, the present invention provides a door span type crack development automation measurement system, comprising:
the fixing module is used for fixing the detection assembly;
the support module is used for supporting the ranging sensor and comprises a first support cover and a second support cover, and the ranging sensor comprises a first ranging sensor and a second ranging sensor;
the data acquisition module is used for acquiring distance data of the first distance measurement sensor and the second support cover vertical panel and distance data of the second distance measurement sensor and the second support cover inclined panel;
the wireless transmission module is used for transmitting the distance data;
the analysis module is used for analyzing the distance data and evaluating the development states of crack expansion and settlement according to the distance data;
and the power supply module is used for supplying power to the data acquisition module and the wireless transmission module.
Further, the analysis module comprises a receiving unit, a calculating unit and an output unit, wherein the receiving unit is used for receiving distance data of the first ranging sensor and the second supporting cover vertical panel and distance data of the second ranging sensor and the second supporting cover inclined panel, the calculating unit is used for calculating the distance data to obtain calculation results of expansion length data of the crack in the direction parallel to the horizontal direction and sedimentation depth data of the crack in the direction perpendicular to the horizontal direction, and the output unit is used for evaluating the expansion state of the crack in the direction of the x axis, the sedimentation state of the crack in the direction of the y axis and the alarm state of the measurement system according to the calculation results.
Further, the calculating unit is provided with a first function, a second function, a third function and a fourth function, the first function is used for calculating the change relation of the expansion length data xL of the crack in the x-axis direction along with the acquisition time T,
the second function is used for calculating the change relation of the change quantity delta xL of the expansion length data of the crack in the x-axis direction in unit time along with the acquisition time T,
the third function is used for calculating the change relation of sedimentation depth data yL of the crack in the y-axis direction along with the acquisition time T,
the fourth function is used for calculating the change relation of the change delta yL of the sedimentation depth data of the crack in the y-axis direction in unit time along with the acquisition time T,
the x-axis direction is parallel to the horizontal plane direction, and the y-axis direction is perpendicular to the horizontal plane direction.
Further, the first function is provided with a first curve, the second function is provided with a second curve, the third function is provided with a third curve, the fourth function is provided with a fourth curve,
the first curve is the acquisition time T on the abscissa and the expansion length data xL of the crack in the x-axis direction on the ordinate, and xL=xl is set i -xl 0 ，
If xl=0, then yl= (yL) is set i -yl 0 )ⅹ√2；
If xL is not equal to 0 and yl i -yl 0 When =xlxxv2, yl= (yL) is set i -yl 0 )/√2；
If xL is not equal to 0 and yl i -yl 0 Not equal to xL x 2, then yl=2x (yL) i -yl 0 )/√2-(xl i -xl 0 )；
xl i The first ranging measured at the ith second for the first ranging sensorThe distance between the sensor and the vertical panel of the second supporting cover,
xl 0 for an initial distance of the first ranging sensor from the second support housing vertical panel,
yl i for the distance of the second ranging sensor and the second supporting hood bevel panel measured by the second ranging sensor at the ith second,
yl 0 for an initial distance of the second ranging sensor from the second support housing diagonal panel,
the abscissa of the second curve is the acquisition time T, the ordinate is the variation delta xL of the expansion length data of the crack in the x-axis direction in unit time,
the third curve has an abscissa of acquisition time T and an ordinate of settlement depth data yL of the crack in the y-axis direction,
and the abscissa of the fourth curve is the acquisition time T, and the ordinate is the variation delta yL of the sedimentation depth data of the crack in the y-axis direction in unit time.
Further, the output unit determines that the crack is in an expanded state in the x-axis direction,
if DeltaxL is greater than or equal to DeltaxL 1 The output unit judges that the development state of the crack in the x-axis direction is a first expansion stage;
if DeltaxL 2 ＜ΔxL≤ΔxL 1 The output unit judges that the development state of the crack in the x-axis direction is a second expansion stage;
if DeltaxL 3 ＜ΔxL≤ΔxL 2 The output unit judges that the development state of the crack in the x-axis direction is a third expansion stage;
if DeltaxL < DeltaxL 3 The output unit judges that the development state of the crack in the x-axis direction is a fourth expansion stage;
ΔxL 1 as the first target value of the variation of the expansion length data of the crack in the x-axis direction in unit time,
ΔxL 2 a second target value for the variation of the data of the expansion length of the crack in the x-axis direction in unit time,
ΔxL 3 the third target value is the variation of the expansion length data of the crack in the x-axis direction in unit time.
Further, the output unit judges the sedimentation state of the crack in the y-axis direction as follows,
if DeltayL is greater than or equal to DeltayL 1 The output unit judges that the development state of the crack in the y-axis direction is a first sedimentation stage;
if delta yL 2 ＜ΔyL≤ΔyL 1 The output unit judges that the development state of the crack in the y-axis direction is a second sedimentation stage;
if delta yL 3 ＜ΔyL≤ΔyL 2 The output unit judges that the development state of the crack in the y-axis direction is a third sedimentation stage;
if DeltayL < DeltayL 3 The output unit judges that the development state of the crack in the y-axis direction is a fourth sedimentation stage,
ΔyL 1 a first target value for the variation of the data of the expansion length of the crack in the y-axis direction in unit time,
ΔyL 2 a second target value for the variation of the data of the expansion length of the crack in the y-axis direction in unit time,
ΔyL 3 the third target value is the variation of the data of the expansion length of the crack in the y-axis direction in unit time.
Further, the output unit determines the alarm state of the measurement system as,
if xL < xL m The output unit judges that the expansion length of the crack in the x-axis direction does not meet the alarm value;
if xL is greater than or equal to xL m The output unit judges that the expansion length of the crack in the x-axis direction meets an alarm value and sends out alarm information;
if yL < yL m The output unit judges that the sedimentation depth of the crack in the y-axis direction does not meet the alarm value;
if yL is greater than or equal to yL m The output unit judges that the sedimentation depth of the crack in the y-axis direction meets an alarm value and sends out alarm information;
xL m to crack atThe data alarm value of the expansion length in the x-axis direction,
yL m and alarming the settlement depth data of the crack in the y-axis direction.
Further, the fixing module comprises a first fixing plate and a second fixing plate,
the first fixing plate includes 6 first fixing holes, the second fixing plate includes 4 second fixing holes,
the first fixing plate and the second fixing plate have the same width, and central axes of the first fixing plate and the second fixing plate in the length direction coincide.
Further, the support module comprises a first support cover, a second support cover and a support plate,
the first supporting cover is used for bearing the data acquisition module, the second supporting cover is used for realizing the data acquisition of the data acquisition module, the supporting plate is used for further fixing the second supporting cover,
the first supporting cover is symmetrically welded on the first fixing plate along the central axis of the first fixing plate in the length direction, the second supporting cover is symmetrically welded on the second fixing plate along the central axis of the second fixing plate in the length direction, the supporting plate is welded on the vertical panel of the second supporting cover,
the first supporting cover includes 4 third fixing holes and 4 fourth fixing holes,
the inclined panel of the second supporting cover forms an included angle of 45 degrees with the horizontal direction.
Further, the first distance measuring sensor is opposite to the vertical panel of the second supporting cover, the second distance measuring sensor is opposite to the inclined panel of the second supporting cover,
the first ranging sensor is fixed through the third fixing hole, and the second ranging sensor is fixed through the fourth fixing hole.
Compared with the prior art, the invention has the beneficial effects that the fixing module fixes the detection assembly on two sides of the crack, so that the detection assembly is kept stable, the support module supports and bears the detection assembly, the data acquisition module acquires the distance data of the first ranging sensor and the vertical panel of the second support cover and the distance data of the second ranging sensor and the inclined panel of the second support cover, the analysis module analyzes and calculates the distance data to obtain the expansion length data of the crack in the direction parallel to the horizontal direction and the sedimentation depth data in the direction perpendicular to the horizontal direction, and the development state of the crack is evaluated according to the expansion length data and the sedimentation depth data. Through fixing the detection component in the crack both sides, support the cover and support range sensor, gather data through wireless transmission, carry out analysis calculation to data at last, realized the automated measurement to the crack, improved the evaluation efficiency to the development state of crack.
In particular, when the analysis module analyzes the distance data and evaluates the development states of crack expansion and settlement according to the distance data, the analysis process of the distance data is simplified and the efficiency of data analysis is improved by arranging the receiving unit, the calculating unit and the output unit.
In particular, the calculating unit is provided with 4 functions, calculates the expansion length data of the crack in the x-axis direction, the variation of the expansion length data of the crack in the x-axis direction in unit time, the sedimentation depth data of the crack in the y-axis direction and the variation of the sedimentation depth data of the crack in the y-axis direction in unit time, and improves the automatic measurement efficiency of the crack.
In particular, when the fixed module is used for fixing the measuring system, the fixed plate is fixed through the fixed holes, so that the stability of the measuring system is improved.
In particular, the support module improves stability of the measurement system by welding and adding a support plate when supporting the measurement system.
In particular, when the data acquisition module acquires distance data of the distance measuring sensor and the second supporting cover, the accuracy of data acquisition is improved by using the infrared distance measuring sensor.
In particular, when the wireless transmission module is used for transmitting distance data of the distance measuring sensor and the second supporting cover, the wireless transmission mode is used, and therefore data transmission efficiency and convenience are improved.
Drawings
FIG. 1 is a three-dimensional diagram of a door span type crack development automatic measurement system provided by an embodiment of the invention;
FIG. 2 is a left side view of an automated measurement system for portal-span crack growth provided by an embodiment of the present invention;
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 and 2, an automated measurement system for door span crack growth provided in an embodiment of the present invention includes:
a fixing module 100 for fixing the detection component;
a support module 200 to support a ranging sensor including a first and a second ranging sensors;
the data acquisition module 300 is configured to acquire distance data between the first ranging sensor and the second supporting cover vertical panel and distance data between the second ranging sensor and the second supporting cover diagonal panel;
a wireless transmission module 400 for transmitting the distance data;
an analysis module 500 for analyzing the distance data and evaluating the development state of crack expansion and settlement according to the distance data;
the power module 600 is configured to supply power to the data acquisition module and the wireless transmission module.
Specifically, in the embodiment of the invention, the fixing module fixes the detection assembly on two sides of the crack, so that the detection assembly is kept stable, the supporting module supports and bears the detection assembly, the data acquisition module acquires the distance data of the first ranging sensor and the vertical panel of the second supporting cover and the distance data of the second ranging sensor and the inclined panel of the second supporting cover, the analysis module analyzes and calculates the distance data to obtain the expansion length data of the crack in the direction parallel to the horizontal direction and the sedimentation depth data in the direction perpendicular to the horizontal direction, and the development state of the crack is evaluated according to the expansion length data and the sedimentation depth data. Through fixing the detection component in the crack both sides, support the cover and support range sensor, gather data through wireless transmission, carry out analysis calculation to data at last, realized the automated measurement to the crack, improved the evaluation efficiency to the development state of crack.
Specifically, the analysis module comprises a receiving unit, a calculating unit and an output unit, wherein the receiving unit is used for receiving distance data of the first ranging sensor and the second supporting cover vertical panel and distance data of the second ranging sensor and the second supporting cover inclined panel, the calculating unit is used for calculating the distance data to obtain calculation results of expansion length data of a crack in the horizontal direction and sedimentation depth data perpendicular to the horizontal direction, and the output unit is used for evaluating the development state of the crack and the alarm state of a measurement system according to the calculation results.
Specifically, when the analysis module analyzes the distance data and evaluates the development states of crack expansion and settlement according to the distance data, the embodiment of the invention simplifies the analysis process of the distance data and improves the efficiency of data analysis by arranging the receiving unit, the calculating unit and the output unit.
Specifically, the calculating unit is provided with a first function, a second function, a third function and a fourth function, wherein the first function is used for calculating the change relation of the expansion length data xL of the crack in the x-axis direction along with the acquisition time T,
the second function is used for calculating the change relation of the change quantity delta xL of the expansion length data of the crack in the x-axis direction in unit time along with the acquisition time T,
the third function is used for calculating the change relation of sedimentation depth data yL of the crack in the y-axis direction along with the acquisition time T,
the fourth function is used for calculating the change relation of the change delta yL of the sedimentation depth data of the crack in the y-axis direction in unit time along with the acquisition time T,
the x-axis direction is parallel to the horizontal plane direction, and the y-axis direction is perpendicular to the horizontal plane direction.
Specifically, the calculation unit of the embodiment of the invention is provided with 4 functions, calculates the expansion length data of the crack in the x-axis direction, the variation of the expansion length data of the crack in the x-axis direction in unit time, the sedimentation depth data of the crack in the y-axis direction and the variation of the sedimentation depth data of the crack in the y-axis direction in unit time, and improves the automatic measurement efficiency of the crack.
In particular, the first function is provided with a first curve, the second function is provided with a second curve, the third function is provided with a third curve, the fourth function is provided with a fourth curve,
the abscissa of the first curve is the acquisition time T, the ordinate is the expansion length data xL of the crack in the x-axis direction,
the abscissa of the second curve is the acquisition time T, the ordinate is the variation delta xL of the expansion length data of the crack in the x-axis direction in unit time,
the third curve has an abscissa of acquisition time T and an ordinate of settlement depth data yL of the crack in the y-axis direction,
and the abscissa of the fourth curve is the acquisition time T, and the ordinate is the variation delta yL of the sedimentation depth data of the crack in the y-axis direction in unit time.
Specifically, xl=xl is set i -xl 0 ；
If xl=0, the yl= (yL) i -yl 0 )ⅹ√2；
If xL is not equal to 0 and yl i -yl 0 ＝(xl i -xl 0 ) X is ∈2, then yl= (yL) is set i -yl 0 )/√2；
If xL is not equal to 0 and yl i -yl 0 ≠(xl i -xl 0 ) X is ∈2, then yl=2 x (yL) i -yl 0 )/√2-(xl i -xl 0 )；
xl i For the distance of the first ranging sensor and the second supporting cover vertical panel measured at the ith second by the first ranging sensor,
xl 0 for an initial distance of the first ranging sensor from the second support housing vertical panel,
yl i for the distance of the second ranging sensor and the second supporting hood bevel panel measured by the second ranging sensor at the ith second,
yl 0 an initial distance from the second ranging sensor to the second support housing bezel.
In particular, the output unit is provided with a first expansion phase, a second expansion phase, a third expansion phase, a fourth expansion phase, a first sedimentation phase, a second sedimentation phase, a third sedimentation phase and a fourth sedimentation phase,
the first expansion stage represents the fastest expansion speed of the crack, the second expansion stage represents the slowest expansion speed of the crack, the third expansion stage represents the slowest expansion speed of the crack, the fourth expansion stage represents the non-expansion stage, the first sedimentation stage represents the fastest sedimentation speed of the crack, the second sedimentation stage represents the slowest sedimentation speed of the crack, the third sedimentation stage represents the slowest sedimentation speed of the crack, and the fourth sedimentation stage represents the non-sedimentation stage.
Specifically, the first expansion stage is provided with an expansion length data alarm value L of the crack in the x-axis direction m And a first target value DeltaxL of variation of the data of the expansion length of the crack in the x-axis direction in unit time 1 ，
The second expansion stage is provided with a second target value DeltaxL of the variation of the expansion length data of the crack in the x-axis direction in unit time 2 ，
The third expansion stage is provided with a third target value delta xL of the variation of the expansion length data of the crack in the x-axis direction in unit time 3 。
The first sedimentation stage is provided with a sedimentation depth data alarm value yL of the crack in the y-axis direction m And a first target value DeltayL of the variation amount of the sedimentation depth data of the crack in the y-axis direction in unit time 1 ，
The second sedimentation stage is provided with a second target value delta yL of the change amount of sedimentation depth data of the crack in the y-axis direction in unit time 2 ，
The third sedimentation stage is provided with a third target value delta yL of the change amount of sedimentation depth data of the crack in the y-axis direction in unit time 3 。
Specifically, the output module determines that the crack is in an expanded state in the x-axis direction,
if xL < xL m The output unit judges that the expansion length of the crack in the x-axis direction does not meet the alarm value;
if xL is greater than or equal to xL m The output unit judges that the expansion length of the crack in the x-axis direction meets an alarm value and sends out alarm information;
if DeltaxL is greater than or equal to DeltaxL 1 The output unit judges that the development state of the crack in the x-axis direction is a first expansion stage;
if DeltaxL 2 ＜ΔxL≤ΔxL 1 The output unit judges that the development state of the crack in the x-axis direction is a second expansion stage;
if DeltaxL 3 ＜ΔxL≤ΔxL 2 The output unit judges that the development state of the crack in the x-axis direction is a third expansion stage;
if DeltaxL < DeltaxL 3 The output unit judges that the development state of the crack in the x-axis direction is a fourth expansion stage.
Specifically, the output module determines the sedimentation state of the crack in the y-axis direction as follows,
if yL < yL m The output unit judges that the sedimentation depth of the crack in the y-axis direction does not meet the alarm value;
if yL is greater than or equal to yL m The output unit judges that the sedimentation depth of the crack in the y-axis direction meets an alarm value and sends out alarm information;
if DeltayL is greater than or equal to DeltayL 1 The output unit judges that the development state of the crack in the y-axis direction is a first sedimentation stage;
if delta yL 2 ＜ΔyL≤ΔyL 1 The output unit judges that the development state of the crack in the y-axis direction is a second sedimentation stage;
if delta yL 3 ＜ΔyL≤ΔyL 2 The output unit judges that the development state of the crack in the y-axis direction is a third sedimentation stage;
if DeltayL < DeltayL 3 The output unit judges that the development state of the crack in the y-axis direction is a fourth sedimentation stage.
Specifically, the receiving unit is connected with the transmission module through wireless.
Specifically, in the embodiment of the invention, when analyzing the distance data between the ranging sensor and the second supporting cover and evaluating the development state of crack expansion and settlement, whether the crack length and depth data reach the set maximum value is judged according to the change relation of the expansion length data xL of the crack in the x-axis direction along the acquisition time T and the change relation of the settlement depth data yL of the crack in the y-axis direction along the acquisition time T, and the development state of crack expansion and settlement is evaluated according to the change relation of the expansion length data deltaxL of the crack in the x-axis direction along the acquisition time T and the change relation of the settlement depth data of the crack in the y-axis direction along the acquisition time T, so that the evaluation efficiency of the development state of the crack is improved.
In particular, the fixing module 100 includes a first fixing plate 110 and a second fixing plate 120,
the first fixing plate 110 includes 6 first fixing holes 111, the second fixing plate 120 includes 4 second fixing holes 121,
the first fixing plate 110 and the second fixing plate 120 have the same width, and central axes of the first fixing plate 110 and the second fixing plate 120 in the length direction coincide.
Specifically, when the measuring system is fixed, the fixing plate is fixed through the fixing holes, so that the stability of the measuring system is improved.
Specifically, the support module 200 includes a first support housing 210, a second support housing 220 and a support plate 230,
the first support cover 210 is used for carrying the data acquisition module 300, the second support cover 220 is used for realizing data acquisition of the data acquisition module 300, the support plate 230 is used for further fixing the second support cover 220,
the first support cover 210 is symmetrically welded to the first fixing plate 110 along a central axis of the first fixing plate 110 in the length direction, the second support cover 220 is symmetrically welded to the second fixing plate 120 along a central axis of the second fixing plate 120 in the length direction, the support plate 230 is welded to a vertical panel of the second support cover 220,
the first support housing 210 includes 4 third fixing holes 211 and 4 fourth fixing holes 212,
the inclined plane of the second supporting cover 220 has an angle of 45 ° with the horizontal direction, and the angle of the inclined plane with the horizontal direction of 45 ° is the preferred angle of the embodiment of the present invention, which is convenient for data calculation.
Specifically, when the measuring system is supported, the stability of the measuring system is improved by welding and adding the supporting plate.
In particular, the data acquisition module 300 includes a first ranging sensor 310 and a second ranging sensor 320, the first ranging sensor 310 and the second ranging sensor 320 are both infrared ranging sensors,
the first distance measuring sensor 310 is opposite to the vertical panel of the second supporting cover 220, the second distance measuring sensor 320 is opposite to the inclined panel of the second supporting cover 220,
the first ranging sensor 310 is fixed through the third fixing hole 211, and the second ranging sensor 320 is fixed through the fourth fixing hole 212.
Specifically, when the distance data of the distance measuring sensor and the second supporting cover are acquired by the distance measuring sensor, the accuracy of data acquisition is improved by using the infrared distance measuring sensor.
Specifically, when the wireless transmission module 400 transmits the distance data acquired by the distance sensor and the second supporting cover, the wireless transmission module 400 is connected to the data acquisition module 300 by adopting a wireless transmission mode.
Specifically, the power module is a 24V lithium battery.
Specifically, when the distance sensor collects and transmits the distance data of the distance sensor and the second supporting cover, a wireless transmission mode is used, and therefore data transmission efficiency and convenience are improved.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A door-mounted automated crack growth measurement system, comprising:
the fixing module is used for fixing the detection assembly;
the support module is used for supporting the ranging sensor and comprises a first support cover and a second support cover, and the ranging sensor comprises a first ranging sensor and a second ranging sensor;
the data acquisition module is used for acquiring distance data of the first distance measurement sensor and the second support cover vertical panel and distance data of the second distance measurement sensor and the second support cover inclined panel;
the wireless transmission module is used for transmitting the distance data;
the analysis module is used for analyzing the distance data and evaluating the development states of crack expansion and settlement according to the distance data;
and the power supply module is used for supplying power to the data acquisition module and the wireless transmission module.
2. The automated measurement system of gate-type crack development of claim 1, wherein the analysis module comprises a receiving unit for receiving distance data of the first ranging sensor and the second supporting hood vertical panel and distance data of the second ranging sensor and the second supporting hood diagonal panel, a calculating unit for calculating the distance data to obtain calculation results of expanded length data of the crack in a direction parallel to a horizontal direction and settlement depth data perpendicular to the horizontal direction, and an output unit for evaluating an expanded state of the crack in an x-axis direction, a settled state of the crack in a y-axis direction, and an alarm state of the measurement system according to the calculation results.
3. The automated measurement system for portal-span crack growth as claimed in claim 2, wherein the calculation unit is provided with a first function, a second function, a third function and a fourth function, the first function is used for calculating the variation relation of the expansion length data xL of the crack in the x-axis direction along with the acquisition time T,
the second function is used for calculating the change relation of the change quantity delta xL of the expansion length data of the crack in the x-axis direction in unit time along with the acquisition time T,
the third function is used for calculating the change relation of sedimentation depth data yL of the crack in the y-axis direction along with the acquisition time T,
the fourth function is used for calculating the change relation of the change delta yL of the sedimentation depth data of the crack in the y-axis direction in unit time along with the acquisition time T,
the x-axis direction is parallel to the horizontal plane direction, and the y-axis direction is perpendicular to the horizontal plane direction.
4. The automated door-mounted crack growth measurement system of claim 3, wherein the first function is configured with a first curve, the second function is configured with a second curve, the third function is configured with a third curve, the fourth function is configured with a fourth curve,
the first curve is the acquisition time T on the abscissa and the expansion length data xL of the crack in the x-axis direction on the ordinate, and xL=xl is set i -xl 0 ，
If xl=0, then set
If xL is not equal to 0
Setting->
If xL is not equal to 0
Setting->
xl i For the distance of the first ranging sensor and the second supporting cover vertical panel measured at the ith second by the first ranging sensor,
xl 0 for an initial distance of the first ranging sensor from the second support housing vertical panel,
yl i for the distance of the second ranging sensor and the second supporting hood bevel panel measured by the second ranging sensor at the ith second,
yl 0 for an initial distance of the second ranging sensor from the second support housing diagonal panel,
the abscissa of the second curve is the acquisition time T, the ordinate is the variation delta xL of the expansion length data of the crack in the x-axis direction in unit time,
the third curve has an abscissa of acquisition time T and an ordinate of settlement depth data yL of the crack in the y-axis direction,
and the abscissa of the fourth curve is the acquisition time T, and the ordinate is the variation delta yL of the sedimentation depth data of the crack in the y-axis direction in unit time.
5. The automated portal crack growth measurement system according to claim 4, wherein the output unit determines an expansion state of the crack in the x-axis direction as,
if DeltaxL is greater than or equal to DeltaxL 1 The output unit judges that the development state of the crack in the x-axis direction is a first expansion stage;
if DeltaxL 2 ＜ΔxL≤ΔxL 1 The output unit judges that the development state of the crack in the x-axis direction is a second expansion stage;
if DeltaxL 3 ＜ΔxL≤ΔxL 2 The output unit judges that the development state of the crack in the x-axis direction is a third expansion stage;
if DeltaxL < DeltaxL 3 The output unit judges that the development state of the crack in the x-axis direction is a fourth expansion stage;
ΔxL 1 as the first target value of the variation of the expansion length data of the crack in the x-axis direction in unit time,
ΔxL 2 a second target value for the variation of the data of the expansion length of the crack in the x-axis direction in unit time,
ΔxL 3 the third target value is the variation of the expansion length data of the crack in the x-axis direction in unit time.
6. The automated measurement system of gate-type crack growth according to claim 5, wherein the output unit determines a settlement state of the crack in the y-axis direction as,
if DeltayL is greater than or equal to DeltayL 1 The output unit judges that the development state of the crack in the y-axis direction is a first sedimentation stage;
if delta yL 2 ＜ΔyL≤ΔyL 1 The output unit judges that the development state of the crack in the y-axis direction is a second sedimentation stage;
if delta yL 3 ＜ΔyL≤ΔyL 2 The output unit judges that the development state of the crack in the y-axis direction is a third sedimentation stage;
if DeltayL < DeltayL 3 The output unit judges that the development state of the crack in the y-axis direction is a fourth sedimentation stage,
ΔyL 1 a first target value for the variation of the data of the expansion length of the crack in the y-axis direction in unit time,
ΔyL 2 a second target value for the variation of the data of the expansion length of the crack in the y-axis direction in unit time,
ΔyL 3 the third target value is the variation of the data of the expansion length of the crack in the y-axis direction in unit time.
7. The automated measurement system of gate-type crack growth of claim 6, wherein the output unit determines an alarm condition of the measurement system as,
if xL < xL m The output unit judges that the expansion length of the crack in the x-axis direction does not meet the alarm value;
if xL is greater than or equal to xL m The output unit judges that the expansion length of the crack in the x-axis direction meets an alarm value and sends out alarm information;
if yL < yL m The output unit judges that the sedimentation depth of the crack in the y-axis direction does not meet the alarm value;
if yL is greater than or equal to yL m The output unit judges that the sedimentation depth of the crack in the y-axis direction meets an alarm value and sends out alarm information;
xL m for the data alarm value of the expansion length of the crack in the x-axis direction,
yL m and alarming the settlement depth data of the crack in the y-axis direction.
8. The automated door-mounted crack growth measurement system of claim 7, wherein the securing module comprises a first securing plate and a second securing plate,
the first fixing plate includes 6 first fixing holes, the second fixing plate includes 4 second fixing holes,
the first fixing plate and the second fixing plate have the same width, and central axes of the first fixing plate and the second fixing plate in the length direction coincide.
9. The automated door-mounted crack growth measurement system of claim 8, wherein the support module comprises a first support housing, a second support housing, and a support plate,
the first supporting cover is used for bearing the data acquisition module, the second supporting cover is used for realizing the data acquisition of the data acquisition module, the supporting plate is used for further fixing the second supporting cover,
the first supporting cover is symmetrically welded on the first fixing plate along the central axis of the first fixing plate in the length direction, the second supporting cover is symmetrically welded on the second fixing plate along the central axis of the second fixing plate in the length direction, the supporting plate is welded on the vertical panel of the second supporting cover,
the first supporting cover includes 4 third fixing holes and 4 fourth fixing holes,
the inclined panel of the second supporting cover forms an included angle of 45 degrees with the horizontal direction.
10. The automated door-mounted crack growth measurement system of claim 9, wherein the first ranging sensor is directly opposite a vertical panel of the second support housing, the second ranging sensor is directly opposite a diagonal panel of the second support housing,
the first ranging sensor is fixed through the third fixing hole, and the second ranging sensor is fixed through the fourth fixing hole.
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