CN115980045A - System for measuring laying relaxation degree of shielded cable - Google Patents
System for measuring laying relaxation degree of shielded cable Download PDFInfo
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- CN115980045A CN115980045A CN202310048035.1A CN202310048035A CN115980045A CN 115980045 A CN115980045 A CN 115980045A CN 202310048035 A CN202310048035 A CN 202310048035A CN 115980045 A CN115980045 A CN 115980045A
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Abstract
The invention relates to a system for measuring the laying relaxation degree of a shielded cable, which comprises: the field imaging device is used for imaging the wall body on which the shielding cable is laid by adopting a vertically placed imaging lens; the curve identification equipment is used for identifying the corresponding actual length of the cable according to the total number of pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area; and the relaxation analysis equipment is used for determining the corresponding cable laying relaxation grade based on the actual length of the cable and the set length of the shielded cable laid on the wall body. The system for measuring the laying relaxation degree of the shielded cable is intelligent in design and simple and convenient to operate. The imaging lens of the vertical plane can be adopted to carry out on-site measurement on the actual laying length of the front wall surface, and the corresponding cable laying relaxation grade is determined based on the numerical analysis result of the measured actual laying length and the set length of the shielding cable laid on the wall body, so that the targeted identification on the laying effect of the shielding cable is realized.
Description
Technical Field
The invention relates to the field of shielded cable laying, in particular to a system for measuring the laying relaxation degree of a shielded cable.
Background
Shielded cables are transmission lines in which signal wires are wrapped with a metallic mesh braid. The braid is typically red copper or tin-plated copper. The wire and cable industry is the second major industry second to the automobile industry, and the product variety satisfaction rate and the domestic market share both exceed 90 percent. Along with the high-speed development of the wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved. For example, the technology disclosed in patent application publication No. CN114566322A is a buried high-temperature-resistant shielded cable, which includes a cable body and a through seat, the cable body penetrates through the inside of the through seat, a supporting seat is fixedly connected to an outer surface of the through seat, a shielding seat is fixedly connected to the inside of the supporting seat, a through component is disposed on a side surface of the shielding seat, a sealing component is connected to one side of the through component, the through component includes a poking rod rotatably connected to a side surface of the shielding seat, a rotating rod rotatably connected to an outer surface of the poking rod, and a push plate connected to one side of the rotating rod. When the rotating rod drives the push plate to move, the push plate can simultaneously pull the telescopic rod and the extension spring on one side of the push plate, the telescopic rod and the extension spring can reduce the vertical loading force applied to the cable connection part, the phenomenon that the cable connection part is suddenly stressed to damage the wire at the hinged part is avoided, and the service life of the cable is prolonged.
The shielding is to ensure the transmission performance of the system in the environment with electromagnetic interference, and the anti-interference here should include two aspects, namely the capability of resisting external electromagnetic interference and the capability of the system itself radiating electromagnetic interference outwards. For example, the technology of the invention application publication No. CN114264851A is a method for measuring electromagnetic shielding attenuation of a shielded cable, and is used for measuring the electromagnetic shielding attenuation of a measured shielded cable; the current calibration device is connected between the tested shielding cable and a signal source cable in series on a non-metal bracket, the other end of the signal source cable is connected with a signal source, and the other end of the tested shielding cable is connected with a load; the measurement method comprises a reference measurement on the current calibration device and an attenuation measurement on the shielded cable under test; the attenuation measurement comprises a near-end measurement close to the position of the current calibration device and a far-end measurement carried out by arranging a current probe at a position separated from the current calibration device by a distance M, wherein the maximum value is an attenuation measurement value; the measure of the mask attenuation is equal to the ratio of the reference measure to the attenuation measure logarithmically or to the difference between the logarithmic unit measure of the reference measure and the logarithmic unit measure of the attenuation measure. Theoretically, a metal shielding layer is coated on the outer surface of the cable and the connecting piece, which can effectively filter out unnecessary electromagnetic waves, however, for a shielding system, a metal shielding layer alone is not enough, and more importantly, the shielding layer must be completely and well grounded, so that the interference current can be effectively led into the ground.
However, in the actual laying process of the shielded cable, for example, when laying the shielded cable on a wall, the laying party wants to lay the shielded cable straight, so that on one hand, the electromagnetic interference can be reduced, the working performance of laying the cable can be ensured, on the other hand, the waste of the cable can be reduced as much as possible, and the laying price and cost of the wall shielded cable can be reduced. However, the lack of a corresponding high-precision actual length measuring mechanism in the prior art results in that the degree of laying slack of the shielded cable per time is difficult to reliably identify, thereby easily resulting in an increase in cable laying cost and a decrease in laying quality.
Disclosure of Invention
In order to solve the technical problems in the related field, the invention provides a system for measuring the laying relaxation degree of a shielded cable, which can efficiently and accurately measure the actual laying length of a front wall by adopting an imaging lens of a vertical plane, and determine the corresponding cable laying relaxation grade based on the numerical analysis result of the measured actual laying length and the set length of the shielded cable laid on the wall, thereby reducing the cable laying cost as much as possible and ensuring the reliable working performance of the laid cable.
According to an aspect of the present invention, there is provided a shielded cable laying slack measuring system including:
the vertical detection device is arranged on the field imaging device and used for detecting whether an imaging lens of the field imaging device is in a vertical state at present and sending a first detection command when the imaging lens of the field imaging device is in the vertical state at present;
the field imaging device is arranged opposite to the wall body laid with the shielding cable, is internally provided with an imaging lens and an optical sensing assembly, is connected with the vertical detection device, and is used for executing field imaging processing on the wall body laid with the shielding cable when receiving the first detection command so as to obtain a real-time imaging picture;
the step-by-step conversion device is connected with the field imaging device, is internally provided with an enhancement operation unit, a sharpening operation unit and a filtering operation unit, and is used for sequentially executing an image data enhancement action, a high-pass filtering sharpening action and a statistical sorting filtering action by utilizing index transformation on the received real-time imaging picture so as to obtain a step-by-step conversion picture;
the cable extraction equipment is connected with the step-by-step conversion device and used for extracting a cable distribution area in the received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and performing fitting processing along the cable direction on the cable distribution area to obtain a cable direction curve in the step-by-step conversion picture;
the curve identification device is connected with the cable extraction device and is used for identifying the corresponding actual length of the cable according to the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area, and when any one parameter of the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and the other parameter are in a monotone positive incidence relation;
the relaxation analysis equipment is connected with the curve identification equipment and used for calculating a length difference value between the actual length of the cable and the set length of the shielded cable laid on the wall body, and determining the corresponding cable laying relaxation grade based on the percentage of the length difference value occupying the set length;
wherein determining a corresponding cable lay slack level based on the percentage of the length difference occupying the set length comprises: the smaller the percentage of the length difference value occupying the set length is, the lower the determined corresponding cable laying relaxation grade is;
the set length of the shielded cable laid on the wall body is the length of the shielded cable required for finishing the laying of the shielded cable on the wall body under the condition that the shielded cable is in a straight state.
The system for measuring the laying relaxation degree of the shielded cable is intelligent in design and simple and convenient to operate. The imaging lens of the vertical plane can be adopted to carry out field measurement on the actual laying length of the front wall surface, and the corresponding cable laying relaxation grade is determined based on the numerical analysis result of the measured actual laying length and the set length of the shielded cable laid by the wall body, so that the targeted identification on the laying effect of the shielded cable is realized.
Drawings
Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic view showing an internal configuration of a shielded cable laying slack measuring system according to a primary embodiment of the present invention.
Fig. 2 is a schematic view showing an internal configuration of a shielded cable laying slack measuring system according to a secondary embodiment of the present invention.
Fig. 3 is a schematic view showing an internal configuration of a shielded cable laying slack measuring system according to a further embodiment of the present invention.
Detailed description of the preferred embodiments
An embodiment of the shielded cable laying slack measuring system of the present invention will be described in detail below with reference to the accompanying drawings.
First embodiment
Fig. 1 is a schematic view showing an internal configuration of a shielded cable laying slack measuring system according to a primary embodiment of the present invention, the system including:
the vertical detection device is arranged on the field imaging device and used for detecting whether an imaging lens of the field imaging device is in a vertical state currently or not and sending a first detection command when the imaging lens of the field imaging device is detected to be in the vertical state currently;
the field imaging device is arranged opposite to the wall body on which the shielding cable is laid, is internally provided with an imaging lens and an optical sensing assembly, is connected with the vertical detection device, and is used for executing field imaging processing on the wall body on which the shielding cable is laid when the first detection command is received so as to obtain a real-time imaging picture;
illustratively, the optical sensing component is a CCD image sensor or a CMOS image sensor;
illustratively, when the first detection command is received, performing field imaging processing on a wall body on which a shielded cable is laid to obtain a real-time imaging picture, wherein the real-time imaging picture is an ultra-high-definition imaging picture;
the step-by-step conversion device is connected with the field imaging device, is internally provided with an enhancement operation unit, a sharpening operation unit and a filtering operation unit, and is used for sequentially executing an image data enhancement action, a high-pass filtering sharpening action and a statistical sorting filtering action by utilizing index transformation on the received real-time imaging picture so as to obtain a step-by-step conversion picture;
for example, the enhancing operation unit, the sharpening operation unit, and the filtering operation unit may be implemented by different ASIC devices, respectively;
illustratively, the progressive conversion device is further internally provided with a clock generation unit for respectively providing required working clock signals for the enhancement operation unit, the sharpening operation unit and the filtering operation unit;
the cable extraction equipment is connected with the step-by-step conversion device and used for extracting a cable distribution area in the received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and performing fitting processing along the cable direction on the cable distribution area to obtain a cable direction curve in the step-by-step conversion picture;
the curve identification device is connected with the cable extraction device and is used for identifying the corresponding actual length of the cable according to the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area, and when any one parameter of the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and the other parameter are in a monotone positive incidence relation;
the slack analysis equipment is connected with the curve identification equipment and used for calculating a length difference value between the actual length of the cable and the set length of the shielded cable laid on the wall body, and determining the corresponding cable laying slack grade based on the percentage of the length difference value occupying the set length;
wherein determining a corresponding cable lay slack level based on the percentage of the set length occupied by the length difference comprises: the smaller the percentage of the length difference value occupying the set length is, the lower the determined corresponding cable laying relaxation grade is;
for example, the smaller the percentage of the length difference occupying the set length, the lower the determined corresponding cable lay slack level comprises:
the percentage of the length difference occupying the set length is 0.5%, the corresponding determined cable lay slack rating is 1, the percentage of the length difference occupying the set length is 1%, the corresponding determined cable lay slack rating is 2, the percentage of the length difference occupying the set length is 2%, the corresponding determined cable lay slack rating is 3, and the percentage of the length difference occupying the set length is 5%, the corresponding determined cable lay slack rating is 4, and so on.
The set length of the shielded cable laid on the wall body is the length of the shielded cable required for completing the laying of the shielded cable on the wall body under the condition that the shielded cable is in a straight state.
Second embodiment
Fig. 2 is a schematic view showing an internal configuration of a shielded cable laying slack measuring system according to a secondary embodiment of the present invention.
The shielded cable laying slack measuring system in fig. 2 may include the following components:
the vertical detection device is arranged on the field imaging device and used for detecting whether an imaging lens of the field imaging device is in a vertical state currently or not and sending a first detection command when the imaging lens of the field imaging device is detected to be in the vertical state currently;
the field imaging device is arranged opposite to the wall body on which the shielding cable is laid, is internally provided with an imaging lens and an optical sensing assembly, is connected with the vertical detection device, and is used for executing field imaging processing on the wall body on which the shielding cable is laid when the first detection command is received so as to obtain a real-time imaging picture;
the system comprises a field imaging device, a step-by-step conversion device, a sharpening device and a filtering device, wherein the field imaging device is connected with the field imaging device, is internally provided with an enhancement operation unit, a sharpening operation unit and a filtering operation unit, and is used for sequentially executing an image data enhancement action, a high-pass filtering sharpening action and a statistical sorting filtering action which utilize exponential transformation on a received real-time imaging picture so as to obtain a step-by-step conversion picture;
the cable extraction equipment is connected with the step-by-step conversion device and used for extracting a cable distribution area in the received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and performing fitting processing along the cable direction on the cable distribution area to obtain a cable direction curve in the step-by-step conversion picture;
the curve identification device is connected with the cable extraction device and is used for identifying the corresponding actual length of the cable according to the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area, and when any one parameter of the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and the other parameter are in a monotone positive incidence relation;
the slack analysis equipment is connected with the curve identification equipment and used for calculating a length difference value between the actual length of the cable and the set length of the shielded cable laid on the wall body, and determining the corresponding cable laying slack grade based on the percentage of the length difference value occupying the set length;
the length storage equipment is connected with the relaxation analysis equipment and is used for storing the set length of the shielding cable laid on the wall in advance;
illustratively, the length memory device may be implemented using a static memory device or an SD memory chip.
Detailed description of the preferred embodiments
Fig. 3 is a schematic view showing an internal configuration of a shielded cable laying slack measuring system according to a further embodiment of the present invention.
The shielded cable laying slack measuring system in fig. 3 may include the following components:
the vertical detection device is arranged on the field imaging device and used for detecting whether an imaging lens of the field imaging device is in a vertical state currently or not and sending a first detection command when the imaging lens of the field imaging device is detected to be in the vertical state currently;
the field imaging device is arranged opposite to the wall body on which the shielding cable is laid, is internally provided with an imaging lens and an optical sensing assembly, is connected with the vertical detection device, and is used for executing field imaging processing on the wall body on which the shielding cable is laid when the first detection command is received so as to obtain a real-time imaging picture;
the step-by-step conversion device is connected with the field imaging device, is internally provided with an enhancement operation unit, a sharpening operation unit and a filtering operation unit, and is used for sequentially executing an image data enhancement action, a high-pass filtering sharpening action and a statistical sorting filtering action by utilizing index transformation on the received real-time imaging picture so as to obtain a step-by-step conversion picture;
the cable extraction equipment is connected with the step-by-step conversion device and used for extracting a cable distribution area in the received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and performing fitting processing along the cable direction on the cable distribution area to obtain a cable direction curve in the step-by-step conversion picture;
the curve identification device is connected with the cable extraction device and is used for identifying the corresponding actual length of the cable according to the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area, and when any one parameter of the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and the other parameter are in a monotone positive incidence relation;
the slack analysis equipment is connected with the curve identification equipment and used for calculating a length difference value between the actual length of the cable and the set length of the shielded cable laid on the wall body, and determining the corresponding cable laying slack grade based on the percentage of the length difference value occupying the set length;
the uninterrupted power supply is respectively connected with the vertical detection device, the field imaging device, the step-by-step conversion device, the cable extraction equipment, the curve identification equipment and the relaxation analysis equipment;
the uninterruptible power supply is used for respectively providing needed power supplies for the vertical detection device, the field imaging device, the step-by-step conversion device, the cable extraction equipment, the curve identification equipment and the relaxation analysis equipment.
Next, a detailed description will be made of a specific configuration of the shielded cable installation slack measuring system of the present invention.
In the shielded cable laying slack measuring system according to various embodiments of the present invention:
identifying the corresponding actual length of the cable according to the total number of the pixels occupied by the cable trend curve and the overall depth of field value of the cable distribution area, wherein when any one parameter of the total number of the pixels occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and another parameter are in a monotonic forward incidence relation, and the method comprises the following steps: and establishing a numerical value corresponding relation of two parameters of the actual length of the corresponding cable, the total number of pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area by adopting a numerical value simulation mode.
In the shielded cable laying slack measuring system according to each embodiment of the present invention:
the vertical detection device, the field imaging device, the step-by-step conversion device, the cable extraction device, the curve identification device and the slack analysis device are all arranged in the same cable laying analyzer.
In the shielded cable laying slack measuring system according to various embodiments of the present invention:
the vertical detection device is also used for sending a second detection command when detecting that the imaging lens of the field imaging device is not in a vertical state currently;
wherein the field imaging device is further configured to suspend performing a field imaging process on the wall body on which the shielded cable is laid, when the second detection command is received.
In the shielded cable laying slack measuring system according to various embodiments of the present invention:
in the progressive conversion device, the enhancement operation unit, the sharpening operation unit and the filtering operation unit are connected in sequence;
the enhancement operation unit is connected with the field imaging device and is used for performing image data enhancement action by using exponential transformation on the received real-time imaging picture;
the sharpening operation unit is used for carrying out high-pass filtering sharpening action on the received image data, and the filtering operation unit is used for carrying out statistical sorting filtering action on the received image data.
And in the shielded cable laying slack measuring system according to each embodiment of the present invention:
the method comprises the following steps of extracting a cable distribution area in a received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and executing fitting processing along the cable trend on the cable distribution area to obtain a cable trend curve in the step-by-step conversion picture, wherein the step of extracting the cable distribution area comprises the following steps: the brightness value distribution interval corresponding to the cable is a value distribution interval divided by a preset brightness upper limit value and a preset brightness lower limit value;
wherein, the step of extracting a cable distribution area in the received step-by-step conversion picture by applying a brightness value distribution area corresponding to the cable, and executing fitting processing along the cable trend on the cable distribution area to obtain a cable trend curve in the step-by-step conversion picture further comprises: the value of the preset brightness upper limit value is between 0 and 255, the value of the preset brightness lower limit value is between 0 and 255, and the preset brightness upper limit value is larger than the preset brightness lower limit value.
In addition, in the shielded cable laying relaxation degree measuring system, extracting a cable distribution area in a received step-by-step conversion picture by using a brightness value distribution area corresponding to a cable, and performing fitting processing along the cable direction on the cable distribution area to obtain a cable direction curve in the step-by-step conversion picture further includes: the cable distribution area is a strip-shaped area, and the strip-shaped trend of the strip-shaped area is obtained as the trend of the cable.
Therefore, the invention has at least three remarkable substantive features and technical progress:
firstly, performing targeted measurement operation on the actual length of a shielded cable laid on a wall body by adopting a non-contact and high-precision measurement mode, calculating a length difference between the actual length and the set length of the shielded cable laid on the wall body, and determining the corresponding cable laying relaxation grade based on the percentage of the length difference occupying the set length, thereby providing key reference information for the quality of the cable laid on the wall body;
secondly, in specific measurement, the smaller the percentage of the length difference value occupying the set length is, the lower the determined corresponding cable laying relaxation level is, and the set length of the shielded cable laid on the wall body is the length of the shielded cable required for finishing the laying of the shielded cable on the wall body under the condition that the shielded cable is in a straight state;
and thirdly, introducing a step-by-step conversion device for sequentially executing an image data enhancement action, a high-pass filtering sharpening action and a statistical sequencing filtering action by utilizing index transformation on the received real-time imaging pictures so as to obtain high-quality field laying pictures and provide basic data for subsequent length measurement and cable laying relaxation analysis.
While examples of embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various other modifications may be made, and equivalents may be substituted, without departing from the true scope of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the inventive concepts described herein. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A shielded cable laying slack measurement system, comprising:
the vertical detection device is arranged on the field imaging device and used for detecting whether an imaging lens of the field imaging device is in a vertical state currently or not and sending a first detection command when the imaging lens of the field imaging device is detected to be in the vertical state currently;
the field imaging device is arranged opposite to the wall body laid with the shielding cable, is internally provided with an imaging lens and an optical sensing assembly, is connected with the vertical detection device, and is used for executing field imaging processing on the wall body laid with the shielding cable when receiving the first detection command so as to obtain a real-time imaging picture;
the step-by-step conversion device is connected with the field imaging device, is internally provided with an enhancement operation unit, a sharpening operation unit and a filtering operation unit, and is used for sequentially executing an image data enhancement action, a high-pass filtering sharpening action and a statistical sorting filtering action by utilizing index transformation on the received real-time imaging picture so as to obtain a step-by-step conversion picture;
the cable extraction equipment is connected with the step-by-step conversion device and used for extracting a cable distribution area in the received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and performing fitting processing along the cable direction on the cable distribution area to obtain a cable direction curve in the step-by-step conversion picture;
the curve identification device is connected with the cable extraction device and is used for identifying the corresponding actual length of the cable according to the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area, and when any one parameter of the total number of the pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and the other parameter are in a monotone positive incidence relation;
the relaxation analysis equipment is connected with the curve identification equipment and used for calculating a length difference value between the actual length of the cable and the set length of the shielded cable laid on the wall body, and determining the corresponding cable laying relaxation grade based on the percentage of the length difference value occupying the set length;
wherein determining a corresponding cable lay slack level based on the percentage of the set length occupied by the length difference comprises: the smaller the percentage of the length difference value occupying the set length is, the lower the determined corresponding cable laying relaxation grade is;
the set length of the shielded cable laid on the wall body is the length of the shielded cable required for finishing the laying of the shielded cable on the wall body under the condition that the shielded cable is in a straight state.
2. The shielded cable laying slack measurement system of claim 1, further comprising:
and the length storage equipment is connected with the relaxation analysis equipment and is used for storing the set length of the shielding cable laid on the wall in advance.
3. The shielded cable laying slack measurement system of claim 1, further comprising:
and the uninterrupted power supply is respectively connected with the vertical detection device, the field imaging device, the step-by-step conversion device, the cable extraction equipment, the curve identification equipment and the relaxation analysis equipment.
4. The shielded cable laying slack measuring system according to claim 3, wherein:
the uninterruptible power supply is used for respectively providing needed power supply for the vertical detection device, the field imaging device, the step-by-step conversion device, the cable extraction equipment, the curve identification equipment and the relaxation analysis equipment.
5. The shielded cable laying slack measuring system according to any one of claims 1 to 4, wherein:
identifying the corresponding actual length of the cable according to the total number of the pixels occupied by the cable trend curve and the overall depth of field value of the cable distribution area, wherein when any one parameter of the total number of the pixels occupied by the cable trend curve and the overall depth of field value of the cable distribution area is unchanged, the identified corresponding actual length of the cable and another parameter are in a monotonic forward association relationship, and the method comprises the following steps: and establishing a numerical value corresponding relation of two parameters of the corresponding actual length of the cable, the total number of pixel points occupied by the cable trend curve and the overall depth of field value of the cable distribution area by adopting a numerical value simulation mode.
6. The shielded cable laying slack measuring system according to any one of claims 1 to 4, wherein:
the vertical detection device, the field imaging device, the step-by-step conversion device, the cable extraction device, the curve evaluation device and the slack analysis device are all arranged in the same cable laying analyzer.
7. The shielded cable laying slack measuring system according to any one of claims 1 to 4, wherein:
the vertical detection device is also used for sending a second detection command when detecting that the imaging lens of the field imaging device is not in a vertical state currently;
wherein the field imaging device is further configured to suspend performing a field imaging process on the wall body on which the shielded cable is laid, when the second detection command is received.
8. The shielded cable laying slack measuring system according to any one of claims 1 to 4, wherein:
in the progressive conversion device, the enhancement operation unit, the sharpening operation unit and the filtering operation unit are connected in sequence;
the enhancement operation unit is connected with the field imaging device and is used for executing image data enhancement action by using exponential transformation on the received real-time imaging picture;
the sharpening operation unit is used for carrying out high-pass filtering sharpening action on the received image data, and the filtering operation unit is used for carrying out statistical sorting filtering action on the received image data.
9. The shielded cable laying slack measuring system according to any one of claims 1 to 4, wherein:
the method comprises the following steps of extracting a cable distribution area in a received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and executing fitting processing along the cable trend on the cable distribution area to obtain a cable trend curve in the step-by-step conversion picture, wherein the step of extracting the cable distribution area comprises the following steps: the brightness value distribution interval corresponding to the cable is a value distribution interval divided by a preset brightness upper limit value and a preset brightness lower limit value.
10. The shielded cable laying slack measuring system according to claim 9, wherein:
the method comprises the following steps of extracting a cable distribution area in a received step-by-step conversion picture by applying a brightness value distribution area corresponding to a cable, and executing fitting processing along the cable trend on the cable distribution area to obtain a cable trend curve in the step-by-step conversion picture, and further comprises the following steps: the value of the preset brightness upper limit value is between 0 and 255, the value of the preset brightness lower limit value is between 0 and 255, and the preset brightness upper limit value is larger than the preset brightness lower limit value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310048035.1A CN115980045B (en) | 2023-01-31 | 2023-01-31 | Shielded cable lays relaxation degree measurement system |
| GBGB2309551.6A GB202309551D0 (en) | 2023-01-31 | 2023-06-26 | A system for measuring the relaxation of shielded cable laying |
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| CN202310048035.1A CN115980045B (en) | 2023-01-31 | 2023-01-31 | Shielded cable lays relaxation degree measurement system |
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| CN115980045B CN115980045B (en) | 2023-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117544232A (en) * | 2024-01-09 | 2024-02-09 | 深圳国人无线通信有限公司 | Method and system for detecting transmission path of repeater |
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- 2023-01-31 CN CN202310048035.1A patent/CN115980045B/en active Active
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| JP2000324639A (en) * | 1999-05-13 | 2000-11-24 | Furukawa Electric Co Ltd:The | Method of monitoring slackness degree of aerial line |
| JP2006194653A (en) * | 2005-01-12 | 2006-07-27 | Yazaki Corp | Method for measuring degree of slackening of electric wire and device |
| JP2007121219A (en) * | 2005-10-31 | 2007-05-17 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for measuring slackness of wire |
| JP2012008645A (en) * | 2010-06-22 | 2012-01-12 | Nippon Telegr & Teleph Corp <Ntt> | Cable slack detection device, cable slack detection method, and cable slack detection program |
| CN102809483A (en) * | 2011-05-30 | 2012-12-05 | 上海西门子医疗器械有限公司 | System and method for measuring looseness of transmission belt |
| CN115235350A (en) * | 2022-09-16 | 2022-10-25 | 江阴市千里马电工材料有限公司 | Cable core length prediction system and method |
| CN115565133A (en) * | 2022-10-08 | 2023-01-03 | 华能国际电力股份有限公司大连电厂 | Image recognition-based abnormal loose detection method for coiled cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117544232A (en) * | 2024-01-09 | 2024-02-09 | 深圳国人无线通信有限公司 | Method and system for detecting transmission path of repeater |
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| CN115980045B (en) | 2023-07-28 |
| GB202309551D0 (en) | 2023-08-09 |
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