CN211012850U - Non-contact displacement detection device based on image recognition technology - Google Patents
Non-contact displacement detection device based on image recognition technology Download PDFInfo
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Abstract
The utility model belongs to equipment detection area, concretely relates to non-contact displacement detection device based on image recognition technology. The device comprises an image acquisition module (1), a laser generation unit (2), a data storage and transmission module (3), a power supply and control module (5) and a target (8); the image acquisition module (1), the laser generation unit (2) and the data storage and transmission module (3) are respectively connected with the power supply and the control module (5); the image acquisition module (1) is connected with the data storage and transmission module (3); the distance between the image acquisition module (1) and the laser generation unit (2) is fixed; the target (8) is arranged on the detection equipment; at least one exposed surface of the target (8) is provided with at least 2 figures with geometric centers. The utility model has the advantages that: (1) convenient to carry, simple to operate. (2) Wide application range, strong adaptability and long service life. (3) The measuring method is simple and the result is accurate. (4) Deformation and displacement in three directions can be detected simultaneously, and the method is efficient.
Description
Technical Field
The utility model belongs to equipment detection area, concretely relates to non-contact displacement detection device based on image recognition technology.
Background
When various field equipment (such as GIS equipment, oil pipelines and the like) is exposed in the field for a long time, the frequency of faults is high, and the faults are mostly caused by expansion caused by heat and contraction caused by cold of the equipment. The equipment is affected by the temperature difference between day and night in the field, and has large displacement deformation, so that a series of problems such as equipment bending and cracking can be caused. Before the problem is not eliminated, the operation and maintenance personnel of equipment will drop into manpower and material resources in a large number and guarantee equipment normal operating, cause very big pressure for operation and maintenance personnel's daily work, if some equipment appear crooked, fracture scheduling problem simultaneously, can appear very big potential safety hazard, threaten life safety and national property safety.
Meanwhile, because the influence of the field equipment on the climate environment in the design and installation stage is not enough, and the operated field equipment has obvious potential safety hazard, the displacement deformation of the field equipment needs to be accurately monitored in real time, and the safety risk evaluation is carried out in real time.
The multi-purpose contact displacement sensor of traditional conventional displacement detection device measures, and the contact displacement sensor is many kinds on the existing market, and the different grade type sensor is suitable for the measuring scope difference. The touch sensor needs to be in contact with the tested equipment to accurately measure data, but the field environment is complex, the sensor fails or is damaged when severe weather occurs, the working efficiency is low, and the working cost is increased. Furthermore, the conventional displacement detection device usually adopts an external power supply, so that power connection is troublesome in field operation, and meanwhile, a power supply wire leaks outwards, so that the conventional displacement detection device is easy to damage and not easy to carry under severe conditions in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing a convenient to carry, use convenient, measuring method is simple, measuring result is accurate, application scope is wide and long service life's non-contact displacement detection device and method.
In order to achieve the above object, the utility model adopts the following technical scheme:
a non-contact displacement detection device based on image recognition technology comprises an image acquisition module 1, a laser generation unit 2, a data storage and transmission module 3, a power supply and control module 5 and a target 8; the image acquisition module 1, the laser generation unit 2 and the data storage and transmission module 3 are respectively connected with the power supply and control module 5; the image acquisition module 1 is connected with the data storage and transmission module 3; the distance between the image acquisition module 1 and the laser generation unit 2 is fixed; the target 8 is arranged on the detection equipment; at least one exposed surface of the target 8 is provided with at least 2 figures having geometric centers.
Further, the device also comprises an adjustable bracket 6, a base 7 and a shell 9; the image acquisition module 1, the laser generation unit 2, the data storage and transmission module 3 and the power supply and control module 5 are arranged in the shell 9; the bottom of the shell 9 is provided with a base 7, and the bottom of the base 7 is connected with the adjustable bracket 6.
Further, the base 7 is a rotatable base; the length of the adjustable bracket 6 can be adjusted.
Further, the device also comprises a temperature adjusting module 4; the temperature adjusting module 4 is connected with the power supply and control module 5;
further, the temperature adjusting module 4 comprises a temperature probe, a fan, a cooling liquid circulating system and an electric heating system; the temperature probe, the fan, the cooling liquid circulating system and the electric heating system are respectively connected with the power supply and the control module 5.
Furthermore, the image acquisition module 1 is a high-precision and high-definition camera, the laser generation unit 2 is a laser generator, the power supply module in the power supply and control module 5 is a storage battery or a storage battery connected with a solar panel, and the control module is a single chip microcomputer or a P L C controller.
Further, the data storage module in the data storage and transmission module 3 is an SD card memory, and the data transmission module is a 3G or 4G or WiFi or ZigBee terminal connected with a P L C or RTU data terminal.
Further, the target 8 is fixed on the device to be tested, so that the centers of the light spots emitted by the laser generating unit 2 are positioned on the same straight line on the centers of the two geometric figures on the target.
The utility model provides an utilize non-contact displacement detection device check out test set displacement's based on image recognition technology method contains following step:
s101, fixing a detection device right in front of equipment or in the main displacement deformation direction and the vertical direction of the equipment, and leveling;
the target is fixed on the tested device, the center of the light spot emitted by the laser generating unit is positioned on the target, and the actual distance between the detection device and the target is L0；
Defining the direction parallel to the central connecting line of the two geometric figures on the target as the X direction, the direction of the horizontal distance between the target and the detection device as the Y direction, and the direction vertical to the plane XY as the Z direction;
s102 the image acquisition module shoots an image, and the pixel distance between the centers of two geometric figures on the image is X0The pixel size of the center of the laser spot from the center of one of the geometric figures on the captured image has a component L in the X directionX0Component in Y direction is LY0The proportionality coefficient between the actual length and the pixel size of the shot image is as follows: k ═ XPractice of/X0；
Calculating the actual size L of the laser spot center initial position from the geometric figure center in the X directionX0 practice＝K×LX0Y-direction actual size LY0 practice＝K×LY0；
S103, deformation displacement of the tested device in the horizontal X direction and the horizontal Y direction is calculated, the image acquisition module shoots an image, and the distance between the central pixels of the two geometric figures on the image is X1The pixel size of the center of the spot on the image from the center of the side geometry has a component L in the X-directionX1Component in Y direction is LY1The proportionality coefficient between the actual length and the pixel size of the shot image is as follows: k1＝XPractice of/X1Calculating the actual size L of the laser spot center initial position from the geometric figure center in the X directionX1 practice＝K×LX1Y-direction actual size LY1 practice＝K×LY1Therefore, the actual device X direction generates the actual displacement DX practice＝LX1 practice-LX0 practiceThe actual displacement D occurring in the Y directionY actual＝LY1 practice-LY0 practice；
S104, calculating the displacement of the tested device in the Z direction, namely two on the targetThe actual distance between the centers of the geometric figures is XPractice ofThe distance from the camera lens before the target displacement is L0The distance from the target to the camera lens after displacement is L1；
The image distance between the centers of the two geometric figures on the target before displacement is XBefore the imageThe image distance between the centers of the two geometric figures on the target after displacement is XAfter the imageThe distance between the camera lens and the image sensor is P0，
Actual displacement D in Z directionZ practiceCalculated by the following formula:
L0/P0＝Xpractice of/XBefore the image，L1/P0＝XPractice of/XAfter the image，
L0＝(XPractice of/XBefore the image)×P0，L1＝(XPractice of/XAfter the image)×P0，
DZ practice＝L0-L1。
Further, the target is fixed on the device to be tested in S101, so that the centers of the light spots emitted by the laser generating unit are located on the same straight line on the target with the centers of the two geometric figures.
Further, an image acquisition module of the zoom camera is used, before the detection device is put into use, data acquisition is carried out on the image acquisition module of the zoom camera, a database is established, and the relation between the distance between the target and the lens of the camera and the image distance between the centers of two geometric figures on the image is obtained; and directly calling a database in the actual detection process, and directly obtaining the distance between the target and the camera lens before and after the displacement from the database by measuring the image distance between the centers of the two geometric figures on the images before and after the displacement so as to obtain the vertical Z-direction displacement value of the equipment.
The utility model provides a pair of non-contact displacement detection device based on image recognition technology, image acquisition module adopt high accuracy, high definition's camera, can guarantee like this that the result is highly accurate, also can avoid meetting extreme bad weather simultaneously and to the error influence that causes of shooing. And an anti-corrosion and wind and sand-proof shell is additionally arranged outside the image acquisition module, and a base of the shell is fixed right in front of the equipment or mainly in the displacement deformation direction and the vertical direction.
The laser emission unit adopts a laser emitter with high precision and high irradiation distance, so that the laser emission unit can irradiate a target with clear light spots at a longer distance, and can accurately find a geometric center to ensure the accuracy.
The utility model provides a pair of non-contact displacement detection device based on image recognition technology, data storage and transmission module are the picture that gathers image acquisition module and carry out local storage through the SD card, then utilize the data transfer radio station to carry out data transmission, can use in some remote areas like this, like adverse circumstances areas such as northwest high altitude area, sea, colliery. Of course, the present invention is not limited to this transmission method, and other wireless transmission methods or wired transmission methods may be used.
The utility model provides a pair of non-contact displacement detection device based on image recognition technology, power module can adopt built-in power supply. The built-in power supply can provide lasting duration for each device inside, can deal with various outdoor severe environments under good shell protection and internal temperature and humidity control, and is convenient to carry. The displacement detection device can also be connected with an external power supply, and long-time online displacement detection can be realized.
The utility model provides a pair of non-contact displacement detection device based on image recognition technology, temperature regulation module can the inside temperature of automatically regulated equipment. When the internal temperature of the detection device is overhigh and exceeds a set value, the temperature adjusting module starts a fan and a cooling liquid circulating system to reduce the internal temperature of the device to a specified value; when the internal temperature of the detection device is too low and is lower than a set numerical value, the temperature adjusting module starts the electric heating module to raise the internal temperature of the device to a specified value.
The detection device is placed under the equipment by utilizing the adjustable bracket, or the detection device can be placed in the displacement direction of the equipment or the vertical direction of the displacement direction and leveled.
The utility model provides a pair of utilize non-contact displacement detection device check out test set based on image recognition technology, through calculating the distance between geometric figure center and the laser spot on the photo that the camera was shot, can calculate the deformation and the displacement of equipment under test, the method is simple, and the result accuracy is high. One photo can detect the deformation and displacement of the tested device in three directions.
Compared with the prior art, the utility model provides a non-contact displacement detection device's advantage based on image recognition technology:
(1) the utility model discloses a displacement detection device carries conveniently, and simple to operate need not to contact with equipment under test, meets adverse weather and also can not lead to displacement detection device to become invalid.
(2) Can deal with various outdoor severe environments, and has wide application range, strong adaptability and long service life of equipment.
(3) The measuring method is simple and the result is accurate.
(4) Deformation and displacement in three directions can be detected simultaneously, and the method is efficient.
Drawings
Fig. 1 is a schematic structural diagram of a non-contact displacement detection device based on an image recognition technology provided by the present invention;
fig. 2 is a schematic structural diagram of a target of the non-contact displacement detection device based on the image recognition technology provided by the present invention;
FIG. 3 is a schematic diagram of the displacement direction of the device under test according to the non-contact displacement detection method based on the image recognition technology provided by the present invention;
fig. 4 is a schematic diagram of a distance relationship between a first photo taken by the camera according to the present invention;
FIG. 5 is a schematic diagram of the distance relationship between the displaced photos of the device under test taken by the camera according to the present invention;
fig. 6 is a schematic diagram of the displacement of the device under test according to embodiment 6 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following embodiments are further described in detail, and the following embodiments are only used for illustrating the present invention, but not for limiting the scope of the present invention.
A non-contact displacement detection device based on image recognition technology comprises an image acquisition module 1, a laser generation unit 2, a data storage and transmission module 3, a power supply and control module 5 and a target 8;
the image acquisition module 1, the laser generation unit 2 and the data storage and transmission module 3 are respectively connected with the power supply and control module 5;
the image acquisition module 1 is connected with the data storage and transmission module 3;
the distance between the image acquisition module 1 and the laser generation unit 2 is fixed;
the target 8 is arranged on the detection equipment; at least one exposed surface of the target 8 is provided with at least 2 figures having geometric centers.
Further, the device also comprises an adjustable bracket 6, a base 7 and a shell 9; the image acquisition module 1, the laser generation unit 2, the data storage and transmission module 3 and the power supply and control module 5 are arranged in the shell 9; the bottom of the shell 9 is provided with a base 7, and the bottom of the base 7 is connected with the adjustable bracket 6;
further, the base 7 is a rotatable base; the length of the adjustable bracket 6 can be adjusted.
Further, the device also comprises a temperature adjusting module 4; the temperature regulation module 4 is connected with a power supply and control module 5.
Further, the temperature adjusting module 4 comprises a temperature probe, a fan, a cooling liquid circulating system and an electric heating system; the temperature probe, the fan, the cooling liquid circulating system and the electric heating system are respectively connected with the power supply and the control module 5.
Further, the image acquisition module 1 is a high-precision and high-definition camera.
The utility model also provides an utilize the method based on image recognition technology's non-contact displacement detection device check out test set displacement.
A non-contact displacement detection method based on an image recognition technology comprises the following steps:
s101, fixing a detection device right in front of equipment or in the main displacement deformation direction and the vertical direction of the equipment, and leveling;
the target is fixed on the tested device, the center of the light spot emitted by the laser generating unit is positioned on the target, and the actual distance between the detection device and the target is L0；
Defining the direction parallel to the central connecting line of the two geometric figures on the target as the X direction, the direction of the horizontal distance between the target and the detection device as the Y direction, and the direction vertical to the plane XY as the Z direction;
s102 the image acquisition module shoots an image, and the pixel distance between the centers of two geometric figures on the image is X0The pixel size of the center of the laser spot from the center of one of the geometric figures on the captured image has a component L in the X directionX0Component in Y direction is LY0The proportionality coefficient between the actual length and the pixel size of the shot image is as follows: k ═ XPractice of/X0；
Calculating the actual size of the initial position of the center of the laser spot from the center of the geometric figure in the X direction
LX0 practice＝K×LX0Y-direction actual size LY0 practice＝K×LY0；
S103, deformation displacement of the tested device in the horizontal X direction and the horizontal Y direction is calculated, the image acquisition module shoots an image, and the distance between the central pixels of the two geometric figures on the image is X1The pixel size of the center of the spot on the image from the center of the side geometry has a component L in the X-directionX1Component in Y direction is LY1，
The proportionality coefficient between the actual length and the pixel size on the shot image is: k1＝XPractice of/X1Calculating the actual size L of the laser spot center initial position from the geometric figure center in the X directionX1 practice＝K×LX1，
Actual dimension in Y direction LY1 practice＝K×LY1；
Therefore, the actual device X direction generates the actual displacement DX practice＝LX1 practice-LX0 practiceThe actual displacement D occurring in the Y directionY actual＝LY1 practice-LY0 practice；
S104, calculating the displacement of the tested device in the Z direction, wherein the actual distance between the centers of two geometric figures on the target is XPractice ofThe distance from the camera lens before the target displacement is L0The distance from the target to the camera lens after displacement is L1；
The image distance between the centers of the two geometric figures on the target before displacement is XBefore the imageThe image distance between the centers of the two geometric figures on the target after displacement is XAfter the imageThe distance between the camera lens and the image sensor is P0，
Actual displacement D in Z directionZ practiceCalculated by the following formula:
L0/P0＝Xpractice of/XBefore the image，L1/P0＝XPractice of/XAfter the image，
L0＝(XPractice of/XBefore the image)×P0，L1＝(XPractice of/XAfter the image)×P0，
DZ practice＝L0-L1。
Further, the target is fixed on the device to be tested in S101, so that the centers of the light spots emitted by the laser generating unit are located on the same straight line on the target with the centers of the two geometric figures.
Example 1
Referring to fig. 1 to 3, a non-contact displacement detection device based on image recognition technology includes an image acquisition module 1, a laser generation unit 2, a data storage and transmission module 3, a power supply and control module 5, and a target 8; the image acquisition module 1, the laser generation unit 2 and the data storage and transmission module 3 are respectively connected with the power supply and control module 5; the image acquisition module 1 is connected with the data storage and transmission module 3; the distance between the image acquisition module 1 and the laser generation unit 2 is fixed; the target 8 is arranged on the detection equipment; one exposed surface of the target 8 is provided with 2 circles.
The image acquisition module 1 is a high-precision and high-definition camera.
Example 2
Referring to fig. 1 to 3, a non-contact displacement detection device based on image recognition technology includes an image acquisition module 1, a laser generation unit 2, a data storage and transmission module 3, a power supply and control module 5, and a target 8; the image acquisition module 1, the laser generation unit 2 and the data storage and transmission module 3 are respectively connected with the power supply and control module 5; the image acquisition module 1 is connected with the data storage and transmission module 3; the distance between the image acquisition module 1 and the laser generation unit 2 is fixed; the target 8 is arranged on the detection equipment; one exposed surface of the target 8 is provided with 2 rectangles. The image acquisition module 1 is a high-precision and high-definition camera.
The device also comprises an adjustable bracket 6, a base 7 and a shell 9; the image acquisition module 1, the laser generation unit 2, the data storage and transmission module 3 and the power supply and control module 5 are arranged in the shell 9; the bottom of the shell 9 is provided with a base 7, and the bottom of the base 7 is connected with the adjustable bracket 6; the base 7 is a rotatable base; the length of the adjustable bracket 6 can be adjusted.
Example 3
Referring to fig. 1 to 3, a non-contact displacement detection device based on an image recognition technology comprises an image acquisition module 1, a laser generation unit 2, a data storage and transmission module 3, a power supply and control module 5 and a target 8; the image acquisition module 1, the laser generation unit 2 and the data storage and transmission module 3 are respectively connected with the power supply and control module 5; the image acquisition module 1 is connected with the data storage and transmission module 3; the distance between the image acquisition module 1 and the laser generation unit 2 is fixed; the target 8 is arranged on the detection equipment; one exposed surface of the target 8 is provided with 2 hexagons. The image acquisition module 1 is a high-precision, high-definition camera.
The device also comprises an adjustable bracket 6, a base 7 and a shell 9; the image acquisition module 1, the laser generation unit 2, the data storage and transmission module 3 and the power supply and control module 5 are arranged in the shell 9; the bottom of the shell 9 is provided with a base 7, and the bottom of the base 7 is connected with the adjustable bracket 6; the base 7 is a rotatable base; the length of the adjustable bracket 6 can be adjusted.
The device also comprises a temperature adjusting module 4; the temperature regulation module 4 is connected with a power supply and control module 5. The temperature adjusting module 4 comprises a temperature probe, a fan, a cooling liquid circulating system and an electric heating system; the temperature probe, the fan, the cooling liquid circulating system and the electric heating system are respectively connected with the power supply and the control module 5.
Example 4
Referring to fig. 1 to 5, a non-contact displacement detection method and device based on image recognition technology includes an image acquisition module (high-precision, high-definition camera), a laser generator, a data storage and transmission module, a temperature adjustment module (temperature probe, fan, cooling fluid circulation system and electric heating system), a power supply and control module, an adjustable bracket, a base, a target and a housing.
When the target is used, if special requirements are provided for equipment or the surface of the equipment can not be provided with the target, the target is arranged at the parallel position of the equipment to be tested, and the target can move along with the equipment to be tested. When the detection device is placed, the equipment needs to be placed in the field of view of the detection device.
The image acquisition module adopts a high-precision and high-definition camera, so that the high accuracy of the result can be ensured, and meanwhile, the error influence on photographing caused by extreme severe weather can be avoided. And an anti-corrosion and wind and sand-proof shell is additionally arranged outside the image acquisition module, and a base of the shell is fixed right in front of the equipment or mainly in the displacement deformation direction and the vertical direction.
The laser emission unit adopts a laser emitter with high precision and high irradiation distance, so that the laser emission unit can irradiate a target with clear light spots at a longer distance, and can accurately find a geometric center to ensure the accuracy.
The data storage and transmission module of the embodiment stores the image acquired by the image acquisition module locally through the SD card, and then transmits the data by using the data transmission radio station, so that the data storage and transmission module can be used in some remote areas, such as northwest high-altitude areas, sea, coal mines and other severe environment areas. Of course, the present invention is not limited to this transmission method, and other wireless transmission methods or wired transmission methods may be used.
The present embodiment employs a built-in power supply. The built-in power supply can provide lasting duration for each device inside, can deal with various outdoor severe environments under good shell protection and internal temperature and humidity control, and is convenient to carry. The displacement detection device can also be connected with an external power supply, and long-time online displacement detection can be realized.
The temperature adjusting module can automatically adjust the internal temperature of the equipment. When the internal temperature of the detection device is overhigh and exceeds a set value, the temperature adjusting module starts a fan and a cooling liquid circulating system to reduce the internal temperature of the device to a specified value; when the internal temperature of the detection device is too low and is lower than a set numerical value, the temperature adjusting module starts the electric heating module to raise the internal temperature of the device to a specified value.
The detection device is placed under the equipment by utilizing the adjustable bracket, or the detection device can be placed in the displacement direction of the equipment or the vertical direction of the displacement direction and leveled.
The reference patterns designed on both sides of the target are taken as circular examples, and can be other patterns such as circles, hexagons, triangles, squares, rectangles and the like. The actual distance between the two geometric centers being XPractice of，XPractice ofHas a length of 300 mm.
During measurement, the geometric figure center connecting line of the target is made to be parallel to the X direction, the target moves along with the equipment, and the laser light spot is fixed.
When the measurement is started, the image acquisition module takes an image, and the pixel distance X between the centers of two circles on the image0150mm, patThe pixel size of the center of the laser spot in the captured image from the center of one of the circles is component L in the X-directionX075mm, component L in the Y directionY0The proportionality coefficient between the actual length and the pixel size on the captured image is 50 mm: k ═ XPractice of/X0＝2。
The actual size of the laser spot center from the X direction of the circular center can be calculated
LX0 practice＝K×LX0＝150mm；
Actual dimension in Y direction LY0 practice＝K×LY0＝100mm。
Example 5
With reference to fig. 1-5, the device under test is subjected to deformation displacement in the horizontal X direction and the Y direction, the image acquisition module captures an image, and the distance between two circular central pixels on the image is X1150mm, the pixel size of the spot center on the image from the center of the one-sided circle at this time is L in the X-direction componentX150mm, component L in the Y directionY1The proportionality coefficient between the actual length and the pixel size on the captured image is 25 mm: k1＝XPractice of/X 12, the X-direction actual dimension L of the initial position of the laser spot center from the center of the circle can be calculatedX1 practice＝K×LX1100mm, actual dimension in Y direction LY1 practice＝K×LY1＝50mm，
Therefore, the actual device X direction generates the actual displacement DX practice＝LX1 practice-LX0 practice＝-50mm；
Actual displacement D in Y directionY actual＝LY1 practice-LY0 practice＝-50mm；
The "+", "-" represents the direction, the "+" moves in the positive direction of the coordinate axis, and the "-" moves in the negative direction of the coordinate axis.
Example 6
With reference to fig. 1 to 6, the measured device is displaced in the vertical Z direction, and the actual distance X between the center of the light spot on the target and the center of the circle on one sidePractice of300mm, the center of the light spot on the target is far away from the circle before displacement occursImage distance X of shape centerBefore the image30mm, the distance X between the center of the light spot on the target and the circular image after displacementAfter the imageDistance P between camera lens and image sensor of 40mm0＝20mm。
According to the camera imaging principle, it is possible to obtain:
L0/P0＝Hpractice of/HBefore the image，L1/P0＝HPractice of/HAfter the imageThen L0＝(XPractice of/XBefore the image)×P0＝200mm，
L1＝(XPractice of/XAfter the image)×P0＝150mm，DZ practice＝L0-L1＝50mm。
The "+", "-" represents the direction, the "+" moves in the positive direction of the coordinate axis, and the "-" moves in the negative direction of the coordinate axis.
The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to perform various changes to the technical solution of the present invention, and these simple changes all belong to the protection scope of the present invention.
It should be noted that the various technical features and steps described in the above embodiments can be combined in any suitable manner without contradiction, and the present invention does not need to describe any combination of the features and steps in order to avoid unnecessary repetition.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (8)
1. A non-contact displacement detection device based on an image recognition technology is characterized by comprising an image acquisition module (1), a laser generation unit (2), a data storage and transmission module (3), a power supply and control module (5) and a target (8);
the image acquisition module (1), the laser generation unit (2) and the data storage and transmission module (3) are respectively connected with the power supply and the control module (5);
the image acquisition module (1) is connected with the data storage and transmission module (3);
the distance between the image acquisition module (1) and the laser generation unit (2) is fixed;
the target (8) is arranged on the detection equipment; at least one exposed surface of the target (8) is provided with at least 2 figures with geometric centers.
2. The non-contact displacement detection device based on the image recognition technology as claimed in claim 1, wherein: the device also comprises an adjustable bracket (6), a base (7) and a shell (9);
the image acquisition module (1), the laser generation unit (2), the data storage and transmission module (3) and the power supply and control module (5) are arranged in the shell (9);
the bottom of the shell (9) is provided with a base (7), and the bottom of the base (7) is connected with the adjustable bracket (6).
3. The non-contact displacement detection device based on the image recognition technology as claimed in claim 2, wherein: the base (7) is a rotatable base; the length of the adjustable bracket (6) can be adjusted.
4. The non-contact displacement detection device based on the image recognition technology as claimed in any one of claims 1 to 3, wherein: the device also comprises a temperature regulation module (4);
the temperature adjusting module (4) is connected with the power supply and control module (5).
5. The non-contact displacement detection device based on the image recognition technology as claimed in claim 4, wherein: the temperature adjusting module (4) comprises a temperature probe, a fan, a cooling liquid circulating system and an electric heating system;
the temperature probe, the fan, the cooling liquid circulating system and the electric heating system are respectively connected with the power supply and the control module (5).
6. The non-contact displacement detection device based on the image recognition technology as claimed in claim 5, wherein: the image acquisition module (1) is a high-precision and high-definition camera;
the laser generating unit (2) is a laser generator;
in the power supply and control module (5), the power supply module is a storage battery or a storage battery connected with a solar panel, and the control module is a singlechip or a P L C controller.
7. The non-contact displacement detection device based on the image recognition technology as claimed in claim 5, wherein the data storage module in the data storage and transmission module (3) is an SD card memory, and the data transmission module is a 3G or 4G or WiFi or ZigBee terminal connected with a P L C or RTU data terminal.
8. The non-contact displacement detection device based on the image recognition technology as claimed in claim 5, wherein: the target (8) is fixed on the equipment to be tested, so that the centers of the light spots emitted by the laser generating unit (2) are positioned on the same straight line of the centers of the two geometric figures on the target.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425984A (en) * | 2019-09-06 | 2019-11-08 | 国网青海省电力公司电力科学研究院 | A kind of non-contact displacement detection device and its method based on image recognition technology |
| CN113255643A (en) * | 2021-05-08 | 2021-08-13 | 上海砼测检测技术有限公司 | Machine vision recognition algorithm applied to displacement monitoring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425984A (en) * | 2019-09-06 | 2019-11-08 | 国网青海省电力公司电力科学研究院 | A kind of non-contact displacement detection device and its method based on image recognition technology |
| CN110425984B (en) * | 2019-09-06 | 2024-08-27 | 国网青海省电力公司电力科学研究院 | Non-contact displacement detection device and method based on image recognition technology |
| CN113255643A (en) * | 2021-05-08 | 2021-08-13 | 上海砼测检测技术有限公司 | Machine vision recognition algorithm applied to displacement monitoring |
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