Detection device, method and equipment for cable protection pipe and storage medium

Abstract

The invention provides a cable protection pipe detection device, method and equipment and a storage medium. A fixing mechanism, a driving mechanism, a laser generator, a laser receiver and a calculation module are integrated. The fixing mechanism is provided with a circumferential fastening support leg for driving the fixing mechanism to stretch; the laser transmitter and the laser receiver are arranged on two sides of the fastening mechanism in a distance-adjustable mode and located in two ends of the pipe, and the receiver moves in a radial plane to receive laser. The system records the laser transmitting and receiving time and the moving angle and distance of the receiver, the calculation module accurately calculates the pipe diameter, the outer diameter and the shape change accordingly, internal tiny damage is accurately captured, and the detection precision and efficiency are remarkably improved.

Description

Technical Field

[0001] The present application relates to the field of cable protection tube detection, and in particular to a detection device, method, equipment and storage medium for a cable protection tube. Background Art

[0002] In the power, communication, petroleum and other industries, cable protection tubes are important infrastructures, and their quality and integrity are directly related to the safe and stable operation of the detection device of the cable protection tubes. However, cable protection tubes are damaged during use due to environmental factors (such as soil corrosion, external force impact), material aging, etc., which in turn affects the safe operation of the cable. Traditional cable protection tube detection methods mostly rely on manual inspections and simple measuring tools. These methods are not only inefficient, but also difficult to accurately detect subtle damage or deformation inside the pipeline.

[0003] In order to improve the detection efficiency and accuracy of cable protection tubes, automated and intelligent detection devices have emerged. Most existing detection devices use ultrasonic and infrared sensing technologies, but these technologies are susceptible to interference in complex environments. Therefore, a more accurate and efficient detection method is needed to meet the detection needs of cable protection tubes. Summary of the invention

[0004] The purpose of the present application is to overcome the problems existing in the above-mentioned prior art and to provide a detection device, method, equipment and storage medium for a cable protection tube.

[0005] The present application provides a detection device for a cable protection tube, comprising: a fixing mechanism, a driving mechanism, a laser generator, a laser receiver and a calculation module;

[0006] The fixing mechanism is provided with a plurality of fastening legs arranged in a circumferential array, and the fastening legs are driven to extend and retract by the driving mechanism via a connecting rod;

[0007] The laser generator and the laser receiver are installed at both sides of the fastening mechanism with adjustable distances, the laser generator and the laser receiver are arranged at both ends of the cable protection tube, and the fastening mechanism is arranged inside the cable protection tube; the laser receiver moves on a detection plane parallel to a radial plane of the cable protection tube;

[0008] The laser generator emits laser light, and the laser receiver moves in the detection plane to receive the laser light, and obtains calculation parameters, including: laser emission time, laser reception time, and the angle and distance of movement of the laser receiver;

[0009] The calculation module determines the cable protection tube parameters according to the calculation parameters through preset calculation rules.

[0010] Optionally, the cable protection tube parameters include:

[0011] Cable protection tube length, average inner diameter of the socket, average outer diameter of the socket, curvature and out-of-roundness.

[0012] Optionally, the laser receiver moves in the detection plane to receive the laser, comprising:

[0013] The laser receiver starts from a preset position and moves linearly at a preset angle to receive laser light;

[0014] A time threshold is set. If the moving time of the laser receiver is greater than the time threshold, a detection of the inner diameter of the flat mouth is completed when the laser is received.

[0015] Optionally, it also includes:

[0016] A battery is used to provide electrical energy to the driving mechanism, the laser generator, the laser receiver and the computing module.

[0017] Optionally, the computing module is arranged in the cloud.

[0018] The present application also provides a method for detecting a cable protection tube, which is applied to a computing module of the above-mentioned detection device for the cable protection tube, and the method comprises:

[0019] Obtaining laser emission time, laser reception time, and the angle and distance of linear movement of the laser receiver;

[0020] Calculate the length of the cable protection tube according to the laser emission time and the laser reception time;

[0021] Calculate the inner diameter of the cable protection tube according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver;

[0022] determining the out-of-roundness of the cable protection tube according to the plurality of said inner diameters;

[0023] The curvature of the cable protection tube is calculated according to the length of the protection tube, the angle and distance of the linear movement of the plurality of laser receivers.

[0024] Optionally, the cable protection tube parameters include:

[0025] Cable protection tube length, average inner diameter of the socket, average outer diameter of the socket, curvature and out-of-roundness.

[0026] Optionally, the laser receiver moves in the detection plane to receive the laser, comprising:

[0027] The laser receiver starts from a preset position and moves linearly at a preset angle to receive laser light;

[0028] A time threshold is set. If the moving time of the laser receiver is greater than the time threshold, a detection of the inner diameter of the flat mouth is completed when the laser is received.

[0029] A cable protection tube detection device in the present application includes:

[0030] A memory for storing a computer executable program of the above-mentioned cable protection tube detection method;

[0031] The processor is used to call the computer executable program to execute: obtaining the laser emission time, the laser reception time, the angle and distance of the linear movement of the laser receiver; calculating the length of the cable protection tube according to the laser emission time and the laser reception time; calculating the inner diameter of the cable protection tube according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver; determining the out-of-roundness of the cable protection tube according to multiple inner diameters; calculating the curvature of the cable protection tube according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver.

[0032] The present application also provides a storage medium, comprising: a computer executable program stored therein, wherein the computer executable program is used to be called by a processor to execute the steps of the above-mentioned cable protection tube detection method.

[0033] The beneficial effects of this application are:

[0034] The present application provides a detection device for a cable protection tube, comprising: a fixing mechanism, a driving mechanism, a laser generator, a laser receiver and a calculation module; the fixing mechanism is provided with a plurality of fastening legs arranged in a circular array, and the fastening legs are driven to extend and retract by the driving mechanism through a connecting rod; the laser generator and the laser receiver are installed on both sides of the fastening mechanism with adjustable distance, the laser generator and the laser receiver are arranged at both ends of the cable protection tube, and the fastening mechanism is arranged inside the cable protection tube; the laser receiver moves on a detection plane parallel to the radial plane of the cable protection tube; the laser generator emits laser, and the laser receiver moves on the detection plane to receive the laser, and obtains calculation parameters, including: laser emission time, laser reception time, angle and distance of movement of the laser receiver; the calculation module determines the cable protection tube parameters according to the calculation parameters by preset calculation rules. The present application emits laser through a laser generator, and the laser receiver moves linearly at multiple angles to receive laser, which can accurately measure the inner diameter, outer diameter and shape changes of the cable protection tube, effectively capture the subtle damage or deformation inside the pipeline, and improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of a detection device for a cable protection tube in this application;

[0036] Figure 2 It is a schematic diagram of the detection method of the cable protection tube in this application. DETAILED DESCRIPTION

[0037] The present application is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present application and implement it.

[0038] Please refer to Figure 1 As shown, the present application provides a detection device for a cable protection tube, including: a fixing mechanism 105, a driving mechanism 107, a laser generator 101, a laser receiver 103 and a computing module.

[0039] The fixing mechanism 105 is used to stabilize the cable protection tube 102, and its unique design ensures that the cable protection tube 102 can be safely and reliably fixed to the detection device of the cable protection tube 102. The fixing mechanism 105 is provided with a plurality of fastening legs 106 arranged in a circular array, and a driving mechanism 107 capable of driving these legs to extend and retract.

[0040] The fastening legs 106 are evenly distributed along a circular path, similar to the hands of a clock or the radiation of sunlight. This arrangement helps to apply uniform force to the target object from multiple directions and angles, thereby enhancing the stability and firmness of the fixation.

[0041] Each of the fastening legs 106 is an independent, retractable element having sufficient rigidity and strength to support an object. The fastening legs 106 are designed to include a sliding mechanism, a spring device or other forms of locking mechanisms to ensure that they can securely fix the object when needed and easily release when not needed.

[0042] The driving mechanism 107 is the power source in the fixing mechanism 105, and is responsible for providing power for the extension and retraction of the fastening legs 106. The driving mechanism 107 includes: a motor, a cylinder or a hydraulic cylinder.

[0043] The connecting rod is an intermediate component connecting the driving mechanism 107 and the fastening legs 106, and transmits the power or movement generated by the driving mechanism 107 to each leg, so that the legs can be extended and retracted synchronously.

[0044] When the detection device of the cable protection tube 102 needs to be fixed to the cable protection tube 102, the driving mechanism 107 pushes the fastening legs 106 outward through the connecting rod until they contact the inner surface of the cable protection tube 102 and apply sufficient pressure. Since the fastening legs 106 are arranged in a circular array, they can apply pressure to the cable protection tube 102 from multiple directions to ensure that the object is firmly fixed. When the object needs to be released, the driving mechanism 107 operates in the reverse direction to retract the fastening legs 106 inward, thereby releasing the fixation of the object.

[0045] The laser generator 101 has high brightness and good directivity. In the present application, the laser generator 101 emits one or more laser beams 108 .

[0046] The laser receiver 103 corresponds to the laser generator 101 and is responsible for receiving the laser beam emitted by the laser generator 101. The laser receiver 103 includes a sensitive photodetector that can detect the arrival of the laser beam and convert it into an electrical signal for processing.

[0047] The fastening mechanism supports and fixes the laser generator 101 and the laser receiver 103. The fastening mechanism allows the distance between the laser generator 101 and the laser receiver 103 to be fine-tuned to meet different measurement requirements.

[0048] The laser generator 101 and the laser receiver 103 are installed on both sides of the fastening mechanism, and the distance between them can be precisely controlled by the adjustment function of the fastening mechanism, so as to adapt to cable protection tubes 102 of different lengths.

[0049] The laser generator 101 and the laser receiver 103 are arranged at both ends of the cable protection tube 102. The laser receiver 103 moves on a detection plane 104 parallel to the radial plane of the cable protection tube 102. When starting to work, the laser generator 101 emits a laser beam 108, which propagates along the inner space direction of the cable protection tube 102 and is finally received by the laser receiver 103.

[0050] Furthermore, the laser receiver 103 moves linearly from a preset position at a preset angle and receives the laser beam 108; a time threshold is set, and if the moving time of the laser receiver 103 is greater than the time threshold, a flat mouth inner diameter detection is completed when the laser is received.

[0051] Furthermore, the above device also includes a battery, and the battery is used to provide power to the driving mechanism 107, the laser generator 101, the laser receiver 103 and the computing module.

[0052] Furthermore, the computing module may be arranged in the cloud.

[0053] By measuring the time required for the laser beam 108 to be emitted and received, the length of the cable protection tube 102 can be calculated, and other parameters of the cable protection tube 102 can be inferred. Since the laser receiver 103 moves on the detection plane 104, multiple measurements can be performed at different positions to obtain more comprehensive data.

[0054] In the process of receiving the laser beam 108, the detection device of the cable protection tube 102 detects data, including:

[0055] Laser beam 108 emission time: the exact time when the laser beam is emitted from the laser generator 101.

[0056] Laser beam 108 reception time: the exact time when the laser beam is received by the laser receiver 103 .

[0057] The moving angle of the laser receiver 103 is recorded as the angle of the laser receiver 103 when it moves on the detection plane 104 .

[0058] Distance moved by the laser receiver 103: distance moved by the laser receiver 103.

[0059] The laser receiver 103 is placed at a predetermined position before starting detection.

[0060] The laser receiver 103 moves linearly along a preset angle (horizontally, vertically or at any other specific angle).

[0061] As the laser receiver 103 moves, it starts to receive the laser signal emitted from the receiving port.

[0062] In order to distinguish the normally received laser signal from noise or short-term interference, a time threshold is set. Only when the time for which the laser receiver 103 continuously receives the laser signal exceeds this time threshold, it is considered as a valid reception.

[0063] When the laser receiver 103 receives the laser signal after the time length for which the laser receiver 103 receives the laser is greater than the time threshold, it indicates that a detection of the inner diameter of the flat mouth is completed.

[0064] The calculation module is based on the collected data and obtains the required measurement results through mathematical algorithms and physical formulas.

[0065] The cable protection tube parameters include:

[0066] Cable protection tube length, average inner diameter of the socket, average outer diameter of the socket, curvature and out-of-roundness.

[0067] Length calculation: the length of the cable protection tube = speed of light (laser receiving time - laser emitting time).

[0068] Inner diameter calculation: After the laser beam enters the tube, a reflected light spot is formed on the inner wall of the tube. By measuring the position of the reflected light spot on the receiver, the intersection of the laser beam and the inner wall of the tube is calculated. The contour of the inner wall of the tube is fitted through the data of multiple intersection points, and then the inner diameter is calculated.

[0069] For example, a series of position coordinates (x_i, y_i) of reflected light spots on the receiver are obtained by measurement. These coordinates represent the intersection of the laser beam and the inner wall of the tube.

[0070] Through these coordinate points, a mathematical method (such as the least squares method) can be used to fit a circle, and the diameter of the circle is the inner diameter.

[0071] Outer diameter measurement: Since it is difficult for a laser beam to directly penetrate the tube wall to measure the outer diameter, other methods are used, such as using external tools such as calipers and outer diameter measuring instruments to directly measure the outer diameter of the cable protection tube 102 .

[0072] Another calculation method is: if the wall thickness is known, calculate the outside diameter by adding twice the wall thickness to the inside diameter measurement.

[0073] The calculation formula is: outer diameter = inner diameter + 2 × wall thickness.

[0074] Out-of-roundness calculation:

[0075] Out-of-roundness is usually defined as the ratio of half the difference between the largest and smallest diameters of the pipe cross section to the average diameter, usually expressed as a percentage.

[0076]

[0077] The average inner diameter is approximately

[0078] Take the average of all measurements as the overall out-of-roundness of the pipe.

[0079] Curvature calculation:

[0080] Tortuosity describes the degree to which the pipe axis deviates from a straight line. It is assessed by measuring the deviation of multiple points on the pipe from an ideal straight line.

[0081] Determine the ideal straight line of the pipe, for example: if the pipe is installed horizontally, the ideal straight line is the horizontal line.

[0082] A plurality of points for calculating the inner diameter are selected on the pipeline (eg, at regular intervals), and the vertical distances from these points to the ideal straight line are calculated.

[0083] The offset of each measuring point is calculated and needs to be normalized according to the total length of the pipeline to obtain a quantitative indicator of the tortuosity.

[0084] Statistical processing of the offset (such as taking the maximum value, average value, etc.), active curvature.

[0085] The present application also provides a method for detecting a cable protection tube, which is applied to a computing module of the above-mentioned detection device for the cable protection tube, and the method comprises:

[0086] Obtaining laser emission time, laser reception time, angle and distance of linear movement of the laser receiver 103;

[0087] Calculate the length of the cable protection tube 102 according to the laser emission time and the laser reception time;

[0088] Calculate the inner diameter of the cable protection tube 102 according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver 103;

[0089] determining the out-of-roundness of the cable protection tube 102 according to the plurality of inner diameters;

[0090] The curvature of the cable protection tube 102 is calculated according to the length of the protection tube, the angle and distance of the linear movement of the plurality of laser receivers 103 .

[0091] Furthermore, the parameters of the cable protection tube 102 include:

[0092] The length of the cable protection tube 102, the average inner diameter of the socket, the average outer diameter of the socket, the curvature and the out-of-roundness.

[0093] Further, the laser receiver 103 moves on the detection plane 104 to receive the laser, including:

[0094] The laser receiver 103 starts from a preset position and moves linearly at a preset angle to receive laser light;

[0095] A time threshold is set. If the moving time of the laser receiver 103 is longer than the time threshold, a detection of the inner diameter of the flat mouth is completed when the laser is received.

[0096] The present application also provides a cable protection tube detection device, comprising:

[0097] A memory for storing a computer executable program for the detection method of the cable protection tube 102;

[0098] The processor is used to call the computer executable program to execute: obtaining the laser emission time, the laser reception time, the angle and distance of the linear movement of the laser receiver 103; calculating the length of the cable protection tube 102 according to the laser emission time and the laser reception time; calculating the inner diameter of the cable protection tube 102 according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver 103; determining the out-of-roundness of the cable protection tube 102 according to multiple inner diameters; calculating the curvature of the cable protection tube 102 according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver 103.

[0099] The present application also provides a storage medium, including: a computer executable program stored therein, wherein the computer executable program is used to be called by a processor to execute the steps of the above-mentioned detection method of the cable protection tube 102.

[0100] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0101] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make some improvements, modifications or changes without departing from the principles of this application, and combine the above technical features in an appropriate manner; the improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A detection device for a cable protection tube, characterized in that: include: A fixing mechanism, a driving mechanism, a laser generator, a laser receiver and a computing module; The fixing mechanism is provided with a plurality of fastening legs arranged in a circumferential array, and the fastening legs are driven to extend and retract by the driving mechanism via a connecting rod; The laser generator and the laser receiver are installed at both sides of the fastening mechanism with an adjustable distance, the laser generator and the laser receiver are arranged at both ends of the cable protection tube, and the fastening mechanism is arranged inside the cable protection tube; the laser receiver moves on a detection plane parallel to the radial plane of the cable protection tube; The laser generator emits laser, and the laser receiver moves in the detection plane to receive the laser, and obtains calculation parameters, including: laser emission time, laser reception time, and the angle and distance of movement of the laser receiver; The calculation module determines the cable protection tube parameters according to the calculation parameters through preset calculation rules.

2. The detection device for the cable protection tube according to claim 1, characterized in that: The cable protection tube parameters include: Cable protection tube length, average inner diameter of the socket, average outer diameter of the socket, curvature and out-of-roundness.

3. The detection device for the cable protection tube according to claim 1, characterized in that: The laser receiver moves in the detection plane to receive the laser, comprising: The laser receiver starts from a preset position and moves linearly at a preset angle to receive laser light; A time threshold is set. If the moving time of the laser receiver is greater than the time threshold, a detection of the inner diameter of the flat mouth is completed when the laser is received.

4. The detection device for the cable protection tube according to claim 1, characterized in that: Also includes: A battery is used to provide electrical energy to the driving mechanism, the laser generator, the laser receiver and the computing module.

5. The detection device for the cable protection tube according to claim 1, characterized in that: The computing module is arranged in the cloud.

6. A method for detecting a cable protection tube, characterized in that: Applied to a computing module of a detection device for a cable protection tube according to any one of claims 1 to 5, the method comprises: Obtaining laser emission time, laser reception time, and the angle and distance of linear movement of the laser receiver; Calculate the length of the cable protection tube according to the laser emission time and the laser reception time; Calculate the inner diameter of the cable protection tube according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver; determining the out-of-roundness of the cable protection tube according to the plurality of said inner diameters; The curvature of the cable protection tube is calculated according to the length of the protection tube, the angle and distance of the linear movement of the plurality of laser receivers.

7. The detection method of the cable protection tube according to claim 6, characterized in that: The cable protection tube parameters include: Cable protection tube length, average inner diameter of the socket, average outer diameter of the socket, curvature and out-of-roundness.

8. The method for detecting a cable protection tube according to claim 6, characterized in that: The laser receiver moves in the detection plane to receive the laser, comprising: The laser receiver starts from a preset position and moves linearly at a preset angle to receive laser light; A time threshold is set. If the moving time of the laser receiver is greater than the time threshold, a detection of the inner diameter of the flat mouth is completed when the laser is received.

9. A cable protection tube detection device, characterized in that: include: A memory for storing a computer executable program of the cable protection tube detection method according to any one of claims 6 to 8; The processor is used to call the computer executable program to execute: obtaining the laser emission time, the laser reception time, the angle and distance of the linear movement of the laser receiver; calculating the length of the cable protection tube according to the laser emission time and the laser reception time; calculating the inner diameter of the cable protection tube according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver; determining the out-of-roundness of the cable protection tube according to multiple inner diameters; calculating the curvature of the cable protection tube according to the length of the protection tube, the angle and distance of the linear movement of the laser receiver.

10. A storage medium, characterized in that: include: A computer executable program is stored, and the computer executable program is used to be called by a processor to execute the steps of a cable protection tube detection method as described in claims 6 to 8.

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