An ultrasonic detection and analysis system for the quality of transmission line clamp crimp joints

Abstract

The present application discloses an ultrasonic detection and analysis system for the quality of transmission line line clamp crimping joints, including: a first ultrasonic data acquisition module, used to collect the wall thickness data of the crimping position of the steel core and the steel anchor; a second ultrasonic data acquisition module, used to collect the wall thickness data of the crimping position of the notch and the aluminum casing; a third ultrasonic data acquisition module, used to collect the wall thickness data of the crimping position of the aluminum stranded wire and the aluminum casing; a pressure interval screening module; a wall thickness interval integration module; a central analysis system, which analyzes and determines whether the crimping of the tension clamp is qualified based on the data collected by the first ultrasonic data acquisition module, the second ultrasonic data acquisition module, and the third ultrasonic data acquisition module and the wall thickness data of the tension clamp. The technical solution involved in the present application can overcome the above-mentioned technical problems, reduce the cost of quality detection of transmission line line clamp crimping joints, and improve detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic quality detection, in particular to an ultrasonic detection and analysis system for the quality of transmission line line clamp crimping joints. Background Art

[0002] The tension clamp crimping joint is a crimping type power fitting used for overhead transmission lines and has been widely used in power grid systems. The tension clamp is mainly divided into two parts: a steel anchor and an aluminum tube. The tension clamp crimping joint uses a crimping machine to first crimp the steel core and aluminum stranded wire together, and then crimp the steel core aluminum stranded wire and aluminum casing together. The crimping process control of the tension clamp crimping joint ultimately determines the quality of the crimping.

[0003] When the line is under heavy load, the tension clamps and joints that do not meet the crimping requirements are prone to cause local overheating and damage the wires, resulting in reduced connection strength, or disconnection due to insufficient crimping grip. If the problem is not discovered in time and the tension clamps and crimped joints with unqualified crimping quality are put into use, they may break or become disconnected, causing power outages, fires, and even electric shock casualties, posing a huge safety hazard.

[0004] From the above, it can be seen that the detection of the quality of the transmission line line clamp crimping joints is very critical. In the prior art, the detection cost of the transmission line line clamp crimping joints is high and the detection efficiency is low.

[0005] Therefore, how to provide an ultrasonic detection and analysis system for the quality of transmission line line clamp crimping joints, which can overcome the above-mentioned technical problems, reduce the cost of quality detection of transmission line line clamp crimping joints, and improve detection efficiency, has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0006] In order to solve the above technical problems, the present application provides a transmission line line clamp crimp joint quality ultrasonic detection and analysis system, which can overcome the above technical problems, reduce the transmission line line clamp crimp joint quality detection cost, and improve the detection efficiency.

[0007] A technical solution provided by this application is as follows:

[0008] The present application provides an ultrasonic detection and analysis system for the quality of transmission line line clamp crimping joints, including: a first ultrasonic data acquisition module, used to collect wall thickness data of the crimping position of the steel core and the steel anchor; a second ultrasonic data acquisition module, used to collect wall thickness data of the crimping position of the notch and the aluminum sleeve; a third ultrasonic data acquisition module, used to collect wall thickness data of the crimping position of the aluminum stranded wire and the aluminum sleeve; a pressure interval screening module, the pressure interval screening module is used to remove the pressure interval that makes the edge distance of the tension clamp unqualified after crimping; a wall thickness interval integration module; the wall thickness interval integration module is communicatively connected to the pressure interval screening module, and the wall thickness interval integration module is used to sort out the wall thickness intervals of the tension clamp obtained by ultrasonic detection within the qualified pressure interval; a central analysis system, the central analysis system is communicatively connected to the first ultrasonic data acquisition module, the second ultrasonic data acquisition module, the third ultrasonic data acquisition module and the wall thickness interval integration module; the central analysis system is used to analyze and determine whether the tension clamp crimping is qualified based on the data collected by the first ultrasonic data acquisition module, the second ultrasonic data acquisition module and the third ultrasonic data acquisition module and the wall thickness data of the tension clamp.

[0009] Furthermore, in a preferred embodiment of the present invention, the pressure interval screening module includes: a deep learning model, which is obtained through machine learning training using multiple sets of data; the multiple sets of data include a first category of data and a second category of data, each set of data in the first category of data includes: a photo of an unqualified margin after the tension clamp is crimped and a label indicating that the photo includes an unqualified margin after the tension clamp is crimped; each set of data in the second category of data includes: a photo of a qualified margin after the tension clamp is crimped and a label indicating that the photo includes a qualified margin after the tension clamp is crimped.

[0010] Furthermore, in a preferred embodiment of the present invention, it further comprises: a tolerance interval processing module communicatively connected to the wall thickness interval integration module.

[0011] Furthermore, in a preferred embodiment of the present invention, the tolerance interval processing module includes: a fuzzy interval setting module; a secondary interval determination module communicatively connected to the fuzzy interval setting module; the secondary interval determination module is communicatively connected to the central analysis system, and if the wall thickness of the tension clamp is in the fuzzy interval, the tension clamp crimping is re-tested to determine whether it is qualified.

[0012] Furthermore, in a preferred embodiment of the present invention, the fuzzy interval setting module is used to set a fuzzy interval of 0.5 to 1 mm according to manual settings.

[0013] Furthermore, in a preferred embodiment of the present invention, the fuzzy interval setting module is used to set a fuzzy interval of 0.6 to 0.8 mm according to manual settings.

[0014] Furthermore, in a preferred embodiment of the present invention, it further includes: a power supply management system connected to the central analysis system.

[0015] Furthermore, in a preferred embodiment of the present invention, the power supply management system includes: a single-chip microcomputer control management module and an FPGA control management module; the single-chip microcomputer control management module is used for power on / off, adapter input detection, battery charging and discharging, FPGA power control, core board power control, and power supply control management of peripheral devices; the FPGA control management module is used for power supply control management of TOFD high and low voltages and PA high and low voltages. The FPGA power supply control network is a secondary control network attached to the single-chip microcomputer power supply control network. The advantage of this is that the timing control of the power supply and the power saving control of the instrument can be performed more accurately, which is conducive to optimizing the stability of the system and reducing the power consumption of the entire system.

[0016] Furthermore, in a preferred embodiment of the present invention, the first ultrasonic data acquisition module, the second ultrasonic data acquisition module, and the third ultrasonic data acquisition module are all phased array detection and acquisition modules.

[0017] Furthermore, in a preferred embodiment of the present invention, it further comprises: a touch screen display module communicatively connected to the central analysis system.

[0018] The ultrasonic detection and analysis system for the quality of wire clamp crimping joints of power transmission lines provided by the present invention, compared with the prior art, comprises: a first ultrasonic data acquisition module, used to collect the wall thickness data of the crimping position of the steel core and the steel anchor; a second ultrasonic data acquisition module, used to collect the wall thickness data of the crimping position of the notch and the aluminum casing; a third ultrasonic data acquisition module, used to collect the wall thickness data of the crimping position of the aluminum stranded wire and the aluminum casing; a pressure interval screening module, the pressure interval screening module is used to remove the pressure interval that makes the edge distance unqualified after the tension clamp is crimped; a wall thickness interval integration module; the wall thickness interval integration module and the pressure interval screening module are integrated with each other. The interval screening module is communicatively connected, and the wall thickness interval integration module is used to organize the wall thickness intervals of the tension clamps obtained by ultrasonic testing within the qualified pressure interval; the central analysis system, the central analysis system is communicatively connected with the first ultrasonic data acquisition module, the second ultrasonic data acquisition module, the third ultrasonic data acquisition module and the wall thickness interval integration module; the central analysis system is used to analyze and judge whether the tension clamp crimping is qualified according to the data collected by the first ultrasonic data acquisition module, the second ultrasonic data acquisition module and the third ultrasonic data acquisition module and the tension clamp wall thickness data. The technical solution involved in the present invention, due to the provision of the above-mentioned various functional modules, the various functional modules are organically coordinated and work in coordination with each other, which reduces the quality inspection cost of the transmission line clamp crimping joints and improves the inspection efficiency compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of a system for ultrasonic detection and analysis of the quality of transmission line clamp crimp joints according to an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of a tolerance interval processing module involved in an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of a power supply management system involved in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0024] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0028] Please Figures 1 to 3As shown, the embodiment of the present application provides a transmission line line clamp crimp joint quality ultrasonic detection and analysis system 6, which includes: a first ultrasonic data acquisition module 1, used to collect the wall thickness data of the crimping position of the steel core and the steel anchor; a second ultrasonic data acquisition module 2, used to collect the wall thickness data of the crimping position of the notch and the aluminum sleeve; a third ultrasonic data acquisition module 3, used to collect the wall thickness data of the crimping position of the aluminum stranded wire and the aluminum sleeve; a pressure interval screening module 4, the pressure interval screening module 4 is used to remove the pressure interval that makes the edge distance after the tension clamp is crimped unqualified; a wall thickness interval integration module 5; the wall thickness interval integration module 5 and the pressure interval screening module Module 4 is communicatively connected, the wall thickness interval integration module 5 is used to organize the wall thickness intervals of the tension clamps obtained by ultrasonic testing within the qualified pressure range; the central analysis system 6, the central analysis system 6 is communicatively connected with the first ultrasonic data acquisition module 1, the second ultrasonic data acquisition module 2, the third ultrasonic data acquisition module 3 and the wall thickness interval integration module 5; the central analysis system 6 is used to analyze and judge whether the tension clamp crimping is qualified according to the data collected by the first ultrasonic data acquisition module 1, the second ultrasonic data acquisition module 2, the third ultrasonic data acquisition module 3 and the tension clamp wall thickness data. The technical solution involved in the present invention, due to the provision of the above-mentioned functional modules, the functional modules are organically coordinated and work in coordination with each other, which reduces the quality inspection cost of the transmission line clamp crimping joints compared with the prior art, and improves the inspection efficiency.

[0029] Specifically, in an embodiment of the present invention, the pressure interval screening module 4 includes: a deep learning model, which is obtained through machine learning training using multiple sets of data; the multiple sets of data include a first category of data and a second category of data, each set of data in the first category of data includes: a photo of an unqualified margin after the tension clamp is crimped and a label indicating that the photo includes an unqualified margin after the tension clamp is crimped; each set of data in the second category of data includes: a photo of a qualified margin after the tension clamp is crimped and a label indicating that the photo includes a qualified margin after the tension clamp is crimped.

[0030] Specifically, in the embodiment of the present invention, it further includes: a tolerance interval processing module 7 which is communicatively connected to the wall thickness interval integration module 5 .

[0031] Specifically, in an embodiment of the present invention, the tolerance interval processing module 7 includes: a fuzzy interval setting module 701; a secondary interval determination module 702 communicated with the fuzzy interval setting module 701; the secondary interval determination module 702 is communicated with the central analysis system 6, and if the wall thickness of the tension clamp is in the fuzzy interval, the tension clamp crimping is re-tested to determine whether it is qualified.

[0032] Specifically, in the embodiment of the present invention, the fuzzy interval setting module 701 is used to set the fuzzy interval of 0.5-1 mm according to manual setting.

[0033] Specifically, in the embodiment of the present invention, the fuzzy interval setting module 701 is used to set the fuzzy interval of 0.6-0.8 mm according to manual setting.

[0034] Specifically, in the embodiment of the present invention, it also includes: a power supply management system 8 connected to the central analysis system 6 .

[0035] Specifically, in an embodiment of the present invention, the power supply management system 8 includes: a single-chip microcomputer control management module 801 and an FPGA control management module 802; the single-chip microcomputer control management module 801 is used to perform power on / off, adapter input detection, battery charging and discharging, FPGA power control, core board power control, and power supply control management of peripheral devices; the FPGA control management module 802 is used to perform power supply control management of TOFD high and low voltages and PA high and low voltages.

[0036] Specifically, in the embodiment of the present invention, the first ultrasonic data acquisition module 1, the second ultrasonic data acquisition module 2, and the third ultrasonic data acquisition module 3 are all phased array detection and acquisition modules.

[0037] Specifically, in the embodiment of the present invention, it also includes: a touch screen display module 9 which is communicatively connected to the central analysis system 6 .

[0038] Among them, in the specific implementation plan, the ultrasonic data acquisition adopts phascan phased array detector, L55-20L64-0.4*5 detection probe, SL55-N0L 15mm wedge, CRS scanner head, and when the ultrasonic wave propagates to the contact surface of the two parts and the cavity between the twisted wires, it will rebound to the probe, and finally obtain the ultrasonic spectrum. Among them, the FPGA power control network is a secondary control network attached to the single-chip power control network. The advantage of this is that the timing control of the power supply and the power saving control of the instrument can be more accurately performed, which is conducive to optimizing the stability of the system and reducing the power consumption of the whole system.

[0039] It should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transmission line line clamp crimp joint quality ultrasonic detection and analysis system, characterized in that: include: A first ultrasonic data acquisition module is used to collect the wall thickness data of the crimping position between the steel core and the steel anchor; The second ultrasonic data acquisition module is used to collect the wall thickness data of the crimping position between the notch and the aluminum sleeve; The third ultrasonic data acquisition module is used to collect the wall thickness data of the crimping position between the aluminum stranded wire and the aluminum sleeve; A pressure interval screening module, the pressure interval screening module is used to remove the pressure interval that makes the edge distance of the tension clamp unqualified after crimping; The pressure interval screening module includes: a deep learning model, which is obtained by machine learning training using multiple sets of data; the multiple sets of data include first-category data and second-category data, each set of data in the first-category data includes: a photo of an unqualified margin after crimping the tension clamp and a label indicating that the photo includes an unqualified margin after crimping the tension clamp; each set of data in the second-category data includes: a photo of a qualified margin after crimping the tension clamp and a label indicating that the photo includes a qualified margin after crimping the tension clamp; A wall thickness interval integration module; the wall thickness interval integration module is in communication connection with the pressure interval screening module, and the wall thickness interval integration module is used to sort out the wall thickness intervals of the tension clamps obtained by ultrasonic testing within the qualified pressure interval; A central analysis system, the central analysis system is communicatively connected with the first ultrasonic data acquisition module, the second ultrasonic data acquisition module, the third ultrasonic data acquisition module and the wall thickness interval integration module; The central analysis system is used to analyze and determine whether the tension clamp crimping is qualified based on the data collected by the first ultrasonic data acquisition module, the second ultrasonic data acquisition module, and the third ultrasonic data acquisition module and the wall thickness data of the tension clamp.

2. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to claim 1 is characterized in that: Also includes: A tolerance interval processing module is communicatively connected to the wall thickness interval integration module.

3. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to claim 2 is characterized in that: The tolerance interval processing module includes: a fuzzy interval setting module; a secondary interval determination module that is communicatively connected to the fuzzy interval setting module; the secondary interval determination module is communicatively connected to the central analysis system, and if the wall thickness of the tension clamp is in the fuzzy interval, re-detection is performed to determine whether the crimping of the tension clamp is qualified.

4. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to claim 3 is characterized in that: The fuzzy interval setting module is used to set a fuzzy interval of 0.5 to 1 mm according to manual settings.

5. According to claim 4, the transmission line clamp crimp joint quality ultrasonic detection and analysis system is characterized in that: The fuzzy interval setting module is used to set the fuzzy interval of 0.6 to 0.8 mm according to manual settings.

6. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to any one of claims 1 to 5, characterized in that: Also includes: A power supply management system connected to the central analysis system.

7. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to claim 6 is characterized in that: The power supply management system includes: a single-chip microcomputer control management module and an FPGA control management module; the single-chip microcomputer control management module is used to perform power on / off, adapter input detection, battery charging and discharging, FPGA power control, core board power control, and power supply control management of peripheral devices; the FPGA control management module is used to perform power supply control management of TOFD high and low voltages and PA high and low voltages.

8. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to claim 7 is characterized in that: The first ultrasonic data acquisition module, the second ultrasonic data acquisition module, and the third ultrasonic data acquisition module are all phased array detection and acquisition modules.

9. The transmission line clamp crimp joint quality ultrasonic detection and analysis system according to claim 8, characterized in that: Also includes: A touch screen display module is communicatively connected to the central analysis system.

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