CN116678340B - Tension wire measuring device and control method thereof - Google Patents
Tension wire measuring device and control method thereof Download PDFInfo
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- CN116678340B CN116678340B CN202310936050.XA CN202310936050A CN116678340B CN 116678340 B CN116678340 B CN 116678340B CN 202310936050 A CN202310936050 A CN 202310936050A CN 116678340 B CN116678340 B CN 116678340B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000003384 imaging method Methods 0.000 claims abstract description 95
- 238000005259 measurement Methods 0.000 claims abstract description 85
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Classifications
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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
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/167—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by projecting a pattern on the object
Abstract
The application provides a lead wire measuring device and a control method thereof, wherein the method comprises the following steps: when a measurement instruction of the lead wire is received, the power supply control component is controlled to electrify the light-emitting component, the position of the amplifying component relative to the imaging screen is determined, then the amplifying component is controlled to move to the position, an image acquisition instruction is sent to the image acquisition component, the image acquisition component is instructed to acquire a first measurement image generated by projection of the lead wire on the imaging screen containing the reference scale under the irradiation of light of the light-emitting component, then the first measurement image is identified, and a first scale value corresponding to the projection of the lead wire on the reference scale in the first measurement image is determined, so that a measured value corresponding to the lead wire is determined according to the first scale value. Therefore, the automatic measurement of the lead wire is realized, and the efficiency of the measurement of the lead wire is improved.
Description
Technical Field
The application relates to the technical field of safety monitoring, in particular to a lead wire measuring device and a control method thereof.
Background
The tension wire measurement is an important item for monitoring the safety deformation of the dam, and mainly measures the horizontal displacement (namely the deformation) of the dam body and the dam foundation. According to the requirements of national specifications and administrative authorities such as the technical standards for concrete dam safety monitoring and the report method of the operation safety information of the hydropower station dam, and the like, the measurement frequency of the lead wire is 1 time/day-1 time/quarter according to different structures and service periods of hydraulic buildings.
However, in the manner of measuring the lead wire by visually observing the corresponding scale value of the projection of the lead wire on the scale fixed on the measured object, a person is required to reach the measured point, and when visually reading by means of a tool (such as an amplifier), the angle of the tool is required to be continuously adjusted, so that the efficiency of measuring the lead wire is low. Therefore, how to improve the efficiency of the lead wire measurement is a problem to be solved.
Disclosure of Invention
The application provides a lead wire measuring device and a control method thereof. The specific scheme is as follows:
an embodiment of the application provides a control method of a lead wire measuring device, which is applied to the measuring device, wherein the measuring device comprises a light emitting component, a power supply control component, an imaging screen, an amplifying component and an image acquisition component; the image acquisition assembly is positioned right above the amplifying assembly and is connected with the amplifying assembly into a whole; the amplifying assembly is positioned above the imaging screen and is movable; the light-emitting component is positioned below the imaging screen; the power supply control component is connected with the light-emitting component; the lead wire is positioned between the light-emitting component and the imaging screen; the method comprises the following steps:
in response to receiving a measurement instruction of the lead wire, controlling the power supply control assembly to electrify the light emitting assembly;
determining the position of the amplifying assembly relative to the imaging screen;
the amplifying assembly is controlled to move to the position, an image acquisition instruction is sent to the image acquisition assembly, and the image acquisition assembly is instructed to acquire a first measurement-reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the irradiation of light of the light-emitting assembly;
identifying a first reading image, and determining a first scale value corresponding to the projection of the lead wire in the first reading image on a reference scale;
and determining a measured value corresponding to the lead wire according to the first scale value.
Another embodiment of the application provides a measuring device, which comprises a light emitting component, a power supply control component, an imaging screen, an amplifying component, an image acquisition component and a controller; the image acquisition assembly is positioned right above the amplifying assembly and is connected with the amplifying assembly into a whole; the amplifying assembly is positioned above the imaging screen and is movable; the light-emitting component is positioned below the imaging screen; the power supply control component is connected with the light-emitting component; the lead wire is positioned between the light-emitting component and the imaging screen;
the light-emitting component is used for providing light for generating a reading image;
the imaging screen comprises a reference scale and is used for receiving projection generated by the lead wire under the irradiation of the light-emitting component;
the amplifying assembly is used for amplifying the imaging screen;
the power supply control assembly is used for powering up the light-emitting assembly;
the controller is used for responding to the received measurement instruction of the lead wire and controlling the power supply control assembly to electrify the luminous assembly; determining the position of the amplifying assembly relative to the imaging screen; the amplifying assembly is controlled to move to the position, an image acquisition instruction is sent to the image acquisition assembly, and the image acquisition assembly is instructed to acquire a first measurement-reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the irradiation of light of the light-emitting assembly; identifying a first reading image, and determining a first scale value corresponding to the projection of the lead wire in the first reading image on a reference scale; and determining a measured value corresponding to the lead wire according to the first scale value.
In another aspect, an embodiment of the present application provides a computer device, including a processor and a memory;
wherein the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory for implementing the method as in the above embodiment.
Another aspect of the present application provides a computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor implements the method of the above embodiment.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a measuring device according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a control method of a lead wire measuring device according to an embodiment of the present application;
fig. 3 is a flow chart of a control method of another lead wire measuring device according to an embodiment of the present application;
fig. 4 is a flowchart of another control method of the lead wire measuring device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
The embodiment of the application also provides a measuring device. Fig. 1 is a schematic structural diagram of a measurement device according to an embodiment of the present application.
As shown in fig. 1, the measuring apparatus 100 includes: a light emitting assembly 110, an imaging screen 120, an amplifying assembly 130, an image capturing assembly (not shown in fig. 1), a power control assembly (not shown in fig. 1), a controller (not shown in fig. 1); the image acquisition assembly is positioned right above the amplifying assembly 130 and is connected with the amplifying assembly into a whole; the amplifying assembly 130 is positioned above the imaging screen 120, and the amplifying assembly 130 is movable; the light emitting assembly 110 is positioned below the imaging screen 120; the power control assembly is connected with the light emitting assembly 110; the lead wire is positioned between the light-emitting component and the imaging screen;
a light emitting assembly 110 for providing light for generating a survey image;
the imaging screen 120 includes a reference scale for receiving projections generated by the lead wires under illumination by the light emitting assembly;
an amplifying assembly 130 for amplifying the imaging screen;
the power supply control assembly is used for powering up the light-emitting assembly;
and the controller is used for executing the control method of the tension wire measuring device disclosed by any embodiment of the application.
In one possible implementation manner of the embodiment of the present application, the light emitting assembly 110 includes a housing 1101, a point light source 1102, a fresnel lens 1103, and a window glass 1104; the shell is made of steel section and is fixed on the surface of the object to be measured corresponding to the tension wire through bolts 1106; the point light source can be an LED red light source, is fixed at the bottom of the inner side of the shell 1101 through a clamping groove, and can be connected with a mobile power supply 1105 in the power supply control assembly through a cable connector; the fresnel lens 1103 is fixed in a groove at the top of the casing 1101 by a sealant, and is used for collimating the light beam emitted by the point light source 1102 into a parallel light beam; the window glass 1104 may be an optical glass, and is fixed to an upper portion of the fresnel lens 1103 by a sealant, for protecting the fresnel lens 1103.
In one possible implementation of the embodiment of the present application, the imaging screen 120 is fixed on top of the imaging screen support 140 by sealant, and is connected to the light emitting assembly 110 by the imaging screen support 140; the imaging screen support 140 is adjustable in length; the imaging screen bracket 140 is a steel profile; the imaging screen support 140 is attached to the housing in the lighting assembly 110 by knurled small head screws.
In one possible implementation manner of the embodiment of the present application, the light shielding sleeve 150 is further included for:
external light is blocked, so that the influence of the external light on projection of the lead wire is avoided, and the accuracy of measurement of the lead wire is ensured; the light shield 150 may be a steel profile that may be placed directly on the imaging screen 120 and may be movable so that it may not be placed on the imaging screen during periods of non-measurement or in the case of weak light in the environment in which the lead wires are located.
In one possible implementation manner of the embodiment of the present application, the light shielding cover 160 is further included, and is used for:
blocking external light; the light shielding cover 160 is made of soft material, can be telescopic and can be placed on the upper part of the light shielding sleeve 150; the middle portion of the light shielding cover 160 is reserved with a circular aperture for placing the amplifying assembly 130.
In one possible implementation of an embodiment of the present application, the magnification assembly 130 may comprise an optical magnifying glass.
In one possible implementation of the embodiment of the present application, the protection cover 170 is further included to protect the imaging screen 120; the protective cover 170 is detachable, the protective cover 170 is detached during the measurement of the lead, and the protective cover is installed on the upper side of the imaging screen 120 after the measurement of the lead is finished.
By using the measuring device provided by the application, the automatic measurement of the lead wire can be realized, so that the efficiency of the measurement of the lead wire is improved.
The control method of the tension wire measuring device performed by the controller of the measuring device in the present application is described below with reference to the drawings. Fig. 2 is a flow chart of a control method of a lead wire measuring device according to an embodiment of the present application.
As shown in fig. 2, the control method of the lead wire measuring device includes:
step 201, in response to receiving a measurement instruction of the lead wire, controlling the power control component to power up the light emitting component.
The light-emitting component is used for providing light for generating a reading image. The image to be measured and read comprises an image generated by projection of the lead wire on the imaging screen.
In the application, when a user needs to acquire the measured value of the lead wire, communication connection can be established between the client corresponding to the measuring device deployed on other terminal equipment and the measuring device. And then triggering a start control of the tension wire measurement in the client to send a measurement instruction of the tension wire measurement to the measurement device through the client.
After receiving the measurement instruction, the measurement device can send a power-on instruction to a power control component in the measurement device, and the power control component can be communicated with a circuit between a power supply and the light-emitting component, so that the light-emitting component is electrified.
Optionally, the power control component may be controlled to power up the light emitting component at a preset time point, and the following control method steps of the lead wire measuring device are executed. And automatic lead wire measurement is realized.
Step 202, determining a position of a magnifying element relative to an imaging screen.
The amplifying assembly is arranged at a position opposite to the imaging screen, and the position of the amplifying assembly can acquire clear measurement and reading images including projection of the lead wires. The imaging screen is used for receiving projection generated by the lead wires under the irradiation of the light-emitting component. The luminous component is fixed on the surface of the object to be measured corresponding to the lead wire. The lead wires are parallel to the plane of the Fresnel lens in the light-emitting component and the plane of the imaging screen, and pass through the imaging screen bracket connecting the light-emitting component and the imaging screen. The amplifying component may be an amplifier.
In order to clearly acquire a measurement-reading image formed by projection of the lead wire in the imaging screen, the distance between the amplifying assembly and the imaging screen is small, so that the visual field range of the amplifying assembly is limited. With the deformation of the measured object, the lead may remove the view range of the amplifying assembly, resulting in failure of the measurement of the lead. Or, due to misoperation of other personnel, the distance between the amplifying assembly and the imaging screen is too large or too small, so that the measured value of the lead wire (namely, the deformation of the measured object) cannot be clearly and accurately obtained from the measured and read image, and the measurement of the lead wire fails.
In the application, a user can input the position of the amplifying assembly relative to the imaging screen in the client, and trigger a generation control for generating the adjusting instruction of the amplifying assembly, and at the moment, the client can generate and send the adjusting instruction containing the position to the measuring device. After the measuring device acquires the adjusting instruction, the position of the amplifying assembly relative to the imaging screen can be resolved. Based on the position, clear and effective measurement and reading images are obtained, and the success of the tension wire measurement is ensured.
Alternatively, an image acquisition instruction may be sent to the image acquisition component, instructing the image acquisition component to acquire the first reference image. And under the condition that the measuring range of the reference scale contained in the first reference image does not belong to a preset value interval, controlling the amplifying assembly to move for a preset distance for a plurality of times in the first direction, and acquiring a second reference image of which the amplifying assembly moves to each position. And then, when the measuring range of the reference scale contained in a certain second reference image belongs to a preset value interval, determining the position corresponding to the second reference image as the position of the amplifying assembly relative to the imaging screen.
Optionally, an image acquisition instruction is sent to the image acquisition component, and the image acquisition component is instructed to acquire the first reference image. And under the condition that the projection of the lead wire is not included in the first reference image, controlling the amplifying assembly to move for a preset distance to the second direction for multiple times, and acquiring a second reference image of which the amplifying assembly moves to each position. And then, under the condition that a certain second reference image comprises projection of the lead wire and the measuring range of a reference scale contained in the second reference image belongs to a preset value interval, determining the position corresponding to the second reference image as the position of the amplifying component relative to the imaging screen.
And 203, controlling the amplifying assembly to move to the position, sending an image acquisition instruction to the image acquisition assembly, and indicating the image acquisition assembly to acquire a first reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the light irradiation of the light-emitting assembly.
In the application, a displacement instruction containing the position of the amplifying component relative to the imaging screen can be sent to the amplifying component. After receiving the displacement instruction, the amplifying component can analyze the positions of the amplifying component and the imaging screen. And then, the sliding component carrying the amplifying component is adjusted to drive the amplifying component to move to the position. It will be appreciated that the image acquisition assembly is coupled to the magnifying assembly such that the image acquisition assembly is simultaneously entrained as the magnifying assembly moves in position.
After the movement of the amplifying assembly is completed, an image acquisition instruction can be sent to the image acquisition assembly. The image acquisition component starts to acquire an image after receiving the instruction, so that a first measurement-reading image generated by projection of the lead wire on an imaging screen containing a reference scale is acquired under the irradiation of light rays of the light-emitting component. Thereafter, the acquired first survey image may be stored in a storage medium.
It can be understood that the light source is provided by the light emitting component, so that the position difference of the light source when a flashlight or other external light source is used is avoided, and the consistency of the projection angle of the lead wire is ensured. In addition, the line body of the tension wire and the graduated scale are not on the same plane, and the space measurement and reading belong to space measurement and reading. The lead wire is projected onto the imaging screen, so that the control is converted into the image for measurement and reading, and the phenomenon of inaccurate measured value caused by the difference of the observation angles of measurement personnel is avoided. Thereby improving the accuracy of the measurement.
Optionally, after the measurement device acquires the adjustment instruction, the position in the adjustment instruction may be matched with the preset range, and when the position is not within the preset range, the amplifying component may not be moved. Thereby ensuring the control reliability of the measuring device.
The preset range is a movable position range of the amplifying assembly, for example, a position within 0-10 cm from the imaging screen.
Step 204, the first reading image is identified, and a first scale value corresponding to the projection of the lead wire in the first reading image on the reference scale is determined.
In the application, the first reading image can be identified through a preset image identification algorithm, and the first scale value corresponding to the projection of the lead wire in the first reading image on the reference scale is determined.
Step 205, determining a measured value corresponding to the lead wire according to the first scale value.
In the application, the first scale value is the displacement of the zero position of the lead wire relative to the reference scale. The sum of the first scale value and the displacement amount of the measured object before the measuring device is arranged on the surface of the current measured object can be determined to be the measured value corresponding to the lead wire.
Optionally, the first measurement image and the measured value corresponding to the lead wire may be sent to a preset client. The remote measurement of the lead wire is realized, so that the efficiency of the measurement of the lead wire is improved.
When a measurement instruction of the lead wire is received, the power supply control component is controlled to electrify the light-emitting component, the position of the amplifying component relative to the imaging screen is determined, then the amplifying component is controlled to move to the position, an image acquisition instruction is sent to the image acquisition component, the image acquisition component is instructed to acquire a first measurement-reading image generated by projection of the lead wire on the imaging screen containing the reference scale under the irradiation of light of the light-emitting component, then the first measurement-reading image is identified, a first scale value corresponding to the projection of the lead wire on the reference scale in the first measurement-reading image is determined, and a measured value corresponding to the lead wire is determined according to the first scale value. Therefore, the automatic measurement of the lead wire is realized, and the efficiency of the measurement of the lead wire is improved.
Fig. 3 is a flowchart of a control method of a lead wire measurement device according to an embodiment of the present application.
As shown in fig. 3, the control method of the lead wire measuring device includes:
step 301, in response to receiving a measurement instruction of the lead wire, controlling the power control component to power up the light emitting component.
In the present application, the specific implementation process of step 301 may be referred to the detailed description of any embodiment of the present application, and will not be repeated here.
Step 302, an image acquisition instruction is sent to an image acquisition component, and the image acquisition component is instructed to acquire a first reference image.
In the present application, the specific process of the image acquisition assembly acquiring the first reference image may refer to the detailed description of the image acquisition assembly acquiring the first measurement image in any embodiment of the present application, which is not described herein again.
It will be appreciated that when the distance between the magnifying element and the imaging screen is small, the field of view of the magnifying element is narrow, which results in a small range in the reference scale contained in the acquired first reference image, and the scale value corresponding to the projection cannot be determined from the first reference image. For example, assuming a range of 0-60 millimeters (mm) for the reference scale, a minimum measurement unit of 1mm, the corresponding scale value is marked every 1 centimeter (i.e., 10 mm). When the first reference image includes a reference scale having a range of 11mm to 16mm (i.e., a range of 5 mm), the first reference image does not include the scale values marked on the reference scale, and therefore, the scale values corresponding to the projections cannot be determined from the first reference image.
When the distance between the amplifying assembly and the imaging screen is large, the field of view of the amplifying assembly is wide, so that scale values marked on a reference scale contained in the acquired first reference image are blurred. Therefore, the scale value corresponding to the projection cannot be determined from the first reference image.
Step 303, controlling the amplifying assembly to move a preset distance to the first direction for a plurality of times and obtaining a second reference image of the amplifying assembly moving to each position when the measuring range of the reference scale included in the first reference image does not belong to the preset value interval.
In the application, when the measuring range of the reference scale contained in the first reference image is not in the range of the preset value interval, the first reference image is not contained with the scale value marked in the reference scale. Therefore, the amplifying assembly can be controlled to move a preset distance in the first direction for a plurality of times, and after each movement, an image acquisition instruction is sent to the image acquisition assembly to acquire a second reference image of each position where the amplifying assembly moves. The first direction is the vertical direction of the plane where the imaging screen is located.
Step 304, determining the position corresponding to any one of the second reference images as the position of the amplifying component relative to the imaging screen under the condition that the measuring range of the reference scale contained in any one of the second reference images belongs to the preset value interval.
In the application, when the measuring range of the reference scale included in a certain second reference image is within the preset value interval range, the position corresponding to the second reference image can be determined as the position of the amplifying assembly relative to the imaging screen. The method and the device ensure that the corresponding scale value of the projection of the lead wire on the reference scale can be determined based on the first measurement image generated by the amplifying assembly on the amplifying imaging screen at the position. Therefore, the effectiveness of the first measurement and reading image is ensured, and the efficiency and reliability of the lead wire measurement are improved.
Alternatively, an image acquisition instruction may be sent to the image acquisition component, instructing the image acquisition component to acquire the first reference image. When the projection of the lead wire is not included in the first reference image, the lead wire is shifted out of the visual field range of the amplifying assembly. Therefore, the amplifying assembly can be controlled to move for a preset distance in a second direction for multiple times, and after each movement, an image acquisition instruction is sent to the image acquisition assembly to acquire a second reference image of each position where the amplifying assembly moves, wherein the second direction is a direction parallel to the reference scale. And under the condition that a certain second reference image comprises projection of the lead wire and the measuring range of a reference scale contained in the second reference image belongs to a preset value interval, determining the position corresponding to the second reference image as the position of the amplifying assembly relative to the imaging screen so as to ensure that the first measurement image generated by the amplifying assembly on the imaging screen is amplified at the position and comprises projection of the lead wire. Therefore, the effectiveness of the first measurement and reading image is ensured, and the efficiency and reliability of the lead wire measurement are improved.
Optionally, under the condition that the measuring range of the reference scale included in the first reference image belongs to a preset value interval, determining the position of the current amplifying assembly as the position of the amplifying assembly relative to the imaging screen.
Optionally, when the measuring range of the reference scale included in the first reference image belongs to a preset value interval and the first reference image includes projection of the lead wire, determining the position of the current amplifying assembly as the position of the amplifying assembly relative to the imaging screen.
And 305, controlling the amplifying assembly to move to the position, sending an image acquisition instruction to the image acquisition assembly, and instructing the image acquisition assembly to acquire a first reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the light irradiation of the light-emitting assembly.
Step 306, the first reading image is identified, and a first scale value corresponding to the projection of the lead wire in the first reading image on the reference scale is determined.
Step 307, determining a measured value corresponding to the lead wire according to the first scale value.
In the present application, the specific implementation process of steps 305 to 307 may be referred to the detailed description of any embodiment of the present application, and will not be repeated here.
According to the application, an image acquisition instruction is sent to an image acquisition component to instruct the image acquisition component to acquire a first reference image, under the condition that the measuring range of a reference scale contained in the first reference image does not belong to a preset value interval, the amplifying component is controlled to move for a preset distance for multiple times in a first direction, the amplifying component is acquired to move to second reference images at all positions, and then under the condition that the measuring range of the reference scale contained in any second reference image belongs to the preset value interval, the position corresponding to any second reference image is determined to be the position of the amplifying component relative to an imaging screen, and the amplifying component is controlled to move to the position. Therefore, the position of the amplifying assembly is automatically adjusted, the effectiveness of the first measurement and reading image is guaranteed, and the efficiency and the reliability of the tension wire measurement are improved.
Fig. 4 is a flowchart of a control method of a lead wire measurement device according to an embodiment of the present application.
As shown in fig. 4, the control method of the lead wire measuring device includes:
in step 401, in response to receiving the measurement instruction of the lead wire, the power control component is controlled to power up the light emitting component.
In step 402, the position of the magnifying element relative to the imaging screen is determined.
And step 403, controlling the amplifying assembly to move to the position, sending an image acquisition instruction to the image acquisition assembly, and indicating the image acquisition assembly to acquire a first reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the light irradiation of the light-emitting assembly.
Step 404, identifying the first read-by-test image, and determining a first scale value corresponding to the projection of the lead wire in the first read-by-test image on the reference scale.
Step 405, determining a measurement value corresponding to the lead wire according to the first scale value.
In the present application, the specific implementation process of step 401 to step 405 may refer to the detailed description of any embodiment of the present application, and will not be repeated here.
Step 406, controlling the amplifying assembly to move a preset distance towards a third direction so as to obtain a second measurement and reading image generated by projecting the lead wire on an imaging screen containing the reference scale under the irradiation of the light-emitting assembly, wherein the measuring range of the reference scale contained in the second measurement and reading image is different from the measuring range of the reference scale contained in the first measurement and reading image.
In the application, the first scale value determined by the first measurement image can only be accurate to the minimum measurement unit position. For example, assuming a range of 0-60 millimeters (mm) for the reference scale, a minimum measurement unit of 1mm, the corresponding scale value is marked every 1 centimeter (i.e., 10 mm). The first measurement and reading image comprises a 20mm-30mm interval on a reference scale, the first measurement and reading image is identified, and the projection of the lead wire is determined to be 21mm (namely, the corresponding first scale value can only be accurate to the millimeter position) in the reference scale.
According to the application, the amplifying assembly can be controlled to move a preset distance in the third direction so as to reduce the distance between the imaging screen and the amplifying assembly, so that the visual field of the amplifying assembly is reduced, and only the small range of the reference scale position where the projection of the lead wire is positioned is amplified, and a second measurement and reading image is acquired. So as to obtain a more accurate calibration value corresponding to the projection of the lead wire based on the second survey and reading image.
The third direction is a perpendicular line of the imaging screen on the plane and tends to be the direction of the imaging screen.
Step 407, identifying the second reading image, and determining a second scale value corresponding to the projection of the lead wire in the second reading image on the reference scale.
Wherein the second scale value corresponds to a higher accuracy than the first scale value.
For example, the second measurement image includes a section of 21mm-22mm on the reference scale. And identifying the second measurement and reading image to determine that the projection of the lead wire is 0.1mm in the corresponding second scale value in the reference scale.
In the application, the second measurement and reading image can be identified, and the first distance between the projection line and the reference scale line in the second measurement and reading image and the second distance between two scale lines adjacent to the projection line in the reference scale are determined. And multiplying the ratio of the first distance to the second distance by the corresponding measuring ranges of two scale marks adjacent to the projection line in the reference scale to determine a second scale value. The reference scale line is one of two scale lines adjacent to the projection line in the reference scale.
In step 408, the measured value is modified based on the second scale value.
In the application, the second scale value and the measured value can be summed to determine the corrected measured value.
In the application, after the measured value corresponding to the lead wire is determined, the amplifying assembly can be controlled to move a preset distance towards a third direction so as to obtain a second reading image generated by projecting the lead wire on an imaging screen comprising a reference scale under the irradiation of light of the light-emitting assembly, then the second reading image is identified, a second scale value corresponding to the projection of the lead wire on the reference scale in the second reading image is determined, and the measured value is corrected based on the second scale value. Thereby improving the precision of the measured value and further improving the accuracy of the measurement of the lead wire.
In order to implement the above embodiments, the embodiments of the present application further provide a computer device, including a processor and a memory;
wherein the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory for realizing the control method of the wire harness measuring device as in the above-described embodiment.
In order to achieve the above-described embodiments, the embodiments of the present application also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the lead wire measuring device of the above-described embodiments.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (6)
1. The control method of the lead wire measuring device is characterized by being applied to the measuring device, wherein the measuring device comprises a light-emitting component, a power supply control component, an imaging screen, an amplifying component and an image acquisition component; the image acquisition assembly is positioned right above the amplifying assembly and is connected with the amplifying assembly into a whole; the amplifying assembly is positioned above the imaging screen and is movable; the light emitting component is positioned below the imaging screen; the power supply control component is connected with the light-emitting component; the lead wire is positioned between the light-emitting component and the imaging screen; the method comprises the following steps:
controlling the power control assembly to electrify the light emitting assembly in response to receiving a measurement instruction of the lead wire;
determining the position of the amplifying assembly relative to the imaging screen;
controlling the amplifying assembly to move to the position, sending an image acquisition instruction to the image acquisition assembly, and indicating the image acquisition assembly to acquire a first measurement-reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the irradiation of light rays of the light-emitting assembly;
identifying the first measurement and reading image, and determining a first scale value corresponding to the projection of the lead wire on the reference scale in the first measurement and reading image, wherein the first scale value is the displacement of the lead wire relative to the zero position of the reference scale;
determining a measured value corresponding to the lead wire according to the first scale value;
the determining the position of the amplifying assembly relative to the imaging screen includes:
sending an image acquisition instruction to the image acquisition assembly to instruct the image acquisition assembly to acquire a first reference image;
controlling the amplifying assembly to move a preset distance to a first direction for multiple times under the condition that the measuring range of the reference scale contained in the first reference image does not belong to a preset value interval, and acquiring a second reference image of the amplifying assembly moved to each position;
and under the condition that the measuring range of the reference scale contained in any second reference image belongs to the preset value interval, determining the position corresponding to any second reference image as the position of the amplifying assembly relative to the imaging screen.
2. The method of claim 1, wherein the determining the position of the magnifying element relative to the imaging screen comprises:
sending an image acquisition instruction to the image acquisition assembly to instruct the image acquisition assembly to acquire a first reference image;
under the condition that the projection of the lead wire is not included in the first reference image, controlling the amplifying assembly to move for a preset distance to a second direction for multiple times, and acquiring a second reference image of the amplifying assembly moved to each position;
and under the condition that the projection of the lead wire is contained in any second reference image and the measuring range of the reference scale contained in any second reference image belongs to a preset value interval, determining the position corresponding to any second reference image as the position of the amplifying assembly relative to the imaging screen.
3. The method as recited in claim 1, further comprising:
controlling the amplifying assembly to move a preset distance towards a third direction so as to acquire a second measurement and reading image generated by projecting the lead wire on an imaging screen containing a reference scale under the irradiation of light of the light-emitting assembly, wherein the measuring range of the reference scale contained in the second measurement and reading image is different from the measuring range of the reference scale contained in the first measurement and reading image;
identifying the second reading image, and determining a second scale value corresponding to the projection of the lead wire in the second reading image on the reference scale;
and correcting the measured value based on the second scale value.
4. The measuring device is characterized by comprising a light emitting component, a power supply control component, an imaging screen, an amplifying component, an image acquisition component and a controller; the image acquisition assembly is positioned right above the amplifying assembly and is connected with the amplifying assembly into a whole; the amplifying assembly is positioned above the imaging screen and is movable; the light emitting component is positioned below the imaging screen; the power supply control component is connected with the light-emitting component; the lead wire is positioned between the light-emitting component and the imaging screen;
the light-emitting component is used for providing light for generating a reading image;
the imaging screen comprises a reference scale and is used for receiving projection generated by the lead wire under the irradiation of the light-emitting component;
the amplifying assembly is used for amplifying the imaging screen;
the power supply control assembly is used for powering up the light-emitting assembly;
the controller is used for responding to the received measurement instruction of the lead wire and controlling the power supply control assembly to electrify the luminous assembly; determining the position of the amplifying assembly relative to the imaging screen; controlling the amplifying assembly to move to the position, sending an image acquisition instruction to the image acquisition assembly, and indicating the image acquisition assembly to acquire a first reading image generated by projection of the lead wire on an imaging screen containing a reference scale under the irradiation of light rays of the light-emitting assembly; identifying the first measurement and reading image, and determining a first scale value corresponding to the projection of the lead wire on the reference scale in the first measurement and reading image, wherein the first scale value is the displacement of the lead wire relative to the zero position of the reference scale; determining a measured value corresponding to the lead wire according to the first scale value;
the controller is used for:
sending an image acquisition instruction to the image acquisition assembly to instruct the image acquisition assembly to acquire a first reference image;
controlling the amplifying assembly to move a preset distance to a first direction for multiple times under the condition that the measuring range of the reference scale contained in the first reference image does not belong to a preset value interval, and acquiring a second reference image of the amplifying assembly moved to each position;
and under the condition that the measuring range of the reference scale contained in any second reference image belongs to the preset value interval, determining the position corresponding to any second reference image as the position of the amplifying assembly relative to the imaging screen.
5. The apparatus of claim 4, wherein the controller is to:
sending an image acquisition instruction to the image acquisition assembly to instruct the image acquisition assembly to acquire a first reference image;
under the condition that the projection of the lead wire is not included in the first reference image, controlling the amplifying assembly to move for a preset distance to a second direction for multiple times, and acquiring a second reference image of the amplifying assembly moved to each position;
and under the condition that the projection of the lead wire is contained in any second reference image and the measuring range of the reference scale contained in any second reference image belongs to a preset value interval, determining the position corresponding to any second reference image as the position of the amplifying assembly relative to the imaging screen.
6. The apparatus of claim 4, wherein the controller is further configured to:
controlling the amplifying assembly to move a preset distance towards a third direction so as to acquire a second measurement and reading image generated by projecting the lead wire on an imaging screen containing a reference scale under the irradiation of light of the light-emitting assembly, wherein the measuring range of the reference scale contained in the second measurement and reading image is different from the measuring range of the reference scale contained in the first measurement and reading image;
identifying the second reading image, and determining a second scale value corresponding to the projection of the lead wire in the second reading image on the reference scale;
and correcting the measured value based on the second scale value.
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