Instrument and method for automatically detecting surface damage of wire

Abstract

The invention belongs to the technical field of power system test tools, and particularly relates to an instrument and a method for automatically detecting surface damage of a wire. The instrument comprises an instrument body, and a mobile module, a camera, a macro detector, a reverse sensor, a time recorder and a storage module which are mounted on the instrument body. After wire construction, the instrument is placed on a wire between two spans, the instrument moves on the wire at a constant speed, and the surface state and size change parameters of the whole wire between the two spans are measured through a camera, a macro detector, a time recorder, a reverse sensor and a storage module carried on the instrument. And calculating the length of the conductor according to the set moving speed and the time when the instrument passes through the two spans so as to judge whether the sag of the conductor meets the construction requirement or not. The detection capability after wire construction can be effectively improved, and safe and stable service of a power transmission line is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power system test tools, in particular to an instrument and method for automatically detecting surface damage of a conductor. Background Art

[0002] As the main component of the transmission line, the conductor may be damaged during the construction process. The surface damage of the conductor will not only affect its appearance, but more importantly, it will have a negative impact on the electrical performance and service life of the conductor. Specifically, the surface damage of the conductor may have the following effects:

[0003] Degradation of electrical performance: Damage to the conductor surface may increase local resistance, which in turn causes heat accumulation and affects the stable transmission of current. Especially in high-voltage transmission lines, surface damage may also become the starting point of corona discharge, reducing transmission efficiency and even causing failures.

[0004] Reduced mechanical strength: Damage to the conductor surface will weaken its mechanical properties, such as tensile strength and bending resistance, making the conductor more susceptible to breakage, especially in severe weather conditions (such as strong winds, hail, etc.).

[0005] Increased safety hazards: Severe surface damage to the conductor may cause the conductor to break, increasing the risk of electric shock accidents. In addition, if the damaged part is located in a critical position, it may also cause power system failures, affecting the safe and stable operation of the power grid.

[0006] Increased maintenance costs: In order to ensure the normal operation of the power system, the conductors must be inspected and maintained regularly. The presence of surface damage will increase the inspection frequency and maintenance workload, thereby increasing the overall maintenance cost.

[0007] Therefore, for power engineering, taking effective measures to prevent the occurrence of surface damage on conductors and repairing existing damage in a timely manner are important links in ensuring the safe and reliable operation of power systems.

[0008] The following reasons may cause conductor construction damage:

[0009] Mechanical damage: During transportation, loading and unloading or installation, if the operation is improper, the wires may collide with hard objects or be squeezed, resulting in scratches, indentations and other damage on the surface.

[0010] Tool damage: Using improper tools or unskilled operating techniques can easily cause damage to the wire surface during wire stripping and wiring.

[0011] Therefore, it is particularly important to develop a device that can quickly detect the surface quality of the conductor after construction.

[0012] The main problems faced:

[0013] Different conductors have different models, different spans, different construction methods, and different qualities of construction personnel. The damage to the conductors after construction has certain particularities. In order to ensure the smooth progress of the inspection work, the most critical aspect is to find an effective method to inspect the surface quality of the conductors after construction to ensure the quality of construction. Summary of the invention

[0014] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a rapid automatic detection instrument and method suitable for surface damage after conductor construction, which can quickly and accurately measure indicators such as surface quality, diameter change, and span length after conductor construction, effectively ensure the quality of conductors after construction, reduce operational risks, improve detection standardization, and ensure conductor quality.

[0015] The technical solution adopted by the present invention to solve the technical problem is:

[0016] The first aspect of the present invention provides an instrument for automatically detecting surface damage of a conductor, comprising:

[0017] The instrument body comprises an upper support body and a lower support body which are spaced apart from each other;

[0018] A moving module, the moving module comprising a roller and a measuring sensor, the roller being mounted on opposite surfaces of the upper and lower supports, the roller moving according to the twisting direction of the wire, and the length of the wire being measured by the moving distance of the roller;

[0019] A camera is installed on the instrument body and is used to photograph the surface of the wire. The inspector observes the surface of the wire through the image transmitted back;

[0020] A macro detector is installed on the instrument body and is used to measure the diameter of the wire. The recorded wire diameter is used to determine whether the wire diameter has changed due to bending, twisting, stretching, etc. during the wire construction process;

[0021] A time recorder, which is installed on the instrument body and is used to record the running time of the instrument on the conductor, the moving time of the equipment at the diameter change location, and the moving time of the equipment at the surface defect location. By the moving speed and time, it is determined where the problem location is on the conductor;

[0022] A reverse sensor, which enables the instrument to automatically run in the reverse direction when the device runs to the other end of the wire or encounters a situation where the wire is broken and cannot pass through, so as to collect the device on the same side after completion;

[0023] A storage module is installed on the instrument body and is used to record time, deformation, and video parameters.

[0024] Furthermore, the camera is installed on the bottom surface of the upper support body.

[0025] The second aspect of the present invention provides a detection method for the above-mentioned instrument for automatically detecting surface damage of a conductor. After the conductor is constructed, the instrument is placed on the conductor between two spans, and the instrument moves at a uniform speed on the conductor. The surface state and dimensional change parameters of the entire conductor between the two spans are measured by a camera, a macro detector, a time recorder, a reverse sensor, and a storage module carried by the instrument. The length of the conductor is calculated by the set moving speed and the time it takes for the instrument to pass through the two spans to determine whether the sag of the conductor meets the construction requirements.

[0026] The advantages and positive effects of the present invention are:

[0027] 1. The present invention can effectively improve the detection capability after conductor construction and ensure the safe and stable service of transmission lines.

[0028] 2. The instrument designed by the present invention is easy to operate and use, saves manpower, reduces resource waste, and improves construction efficiency.

[0029] 3. The present invention is applicable to the detection of various types of wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the structure of the instrument for automatically detecting the surface damage of the conductor according to the present invention.

[0031] 1- instrument body; 2- connector; 3- roller; 4- camera; 5- macro sensor; 6- reverse sensor; 7- time recorder; 8- storage module. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below through specific examples. The following examples are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0033] The instrument for automatically detecting surface damage of a conductor of the present invention comprises: an instrument body 1 and a mobile module installed on the instrument body, a camera 4, a macro detector 5, a reverse sensor 6, a time recorder 7, and a storage module 8.

[0034] The instrument body 1 comprises an upper and a lower support body which are spaced apart from each other. The two support bodies are connected by a support column, and the upper and lower ends of the support column are connected to the upper and lower support bodies respectively by a connecting piece 2.

[0035] Mobile module: The mobile module of the device is equipped with a measuring sensor. The roller 3 configured on the device can move according to the twist direction of the wire, and the length of the wire is measured by the moving distance of the roller.

[0036] Camera 4: The high-definition camera configured on the device can capture the surface conditions of the conductors, and inspectors can observe the surface conditions of the conductors through the images transmitted back.

[0037] Macro detector 5: The macro detector carried by the equipment can measure the diameter of the wire. By recording the wire diameter, it can be determined whether the wire diameter has changed due to bending, twisting, stretching, etc. during the construction process.

[0038] Time recorder 7: records the running time of the equipment on the conductor, the moving time of the equipment at the diameter change part, the moving time of the equipment at the surface defect part, etc., and determines where the problem part is on the conductor through the moving speed and time.

[0039] Reverse sensor 6: When the device runs to the other end of the wire, or encounters a situation where the wire is broken and cannot pass, the instrument can automatically run in the opposite direction to collect the device on the same side after completion.

[0040] Storage module 8: records time, deformation, video and other parameters.

[0041] The working principle of the instrument for automatically detecting wire surface damage of the present invention is:

[0042] After the conductor construction, the instrument is placed on the conductor between two spans. The instrument can move at a constant speed on the conductor powered by a battery. The surface state, dimensional change and other parameters of the entire conductor between the two spans are measured through the camera, macro detector, time recorder, reverse sensor, storage device and other modules carried on the instrument. The conductor length is calculated by the set moving speed and the time the instrument takes to pass between the two spans to determine whether the conductor sag meets the construction requirements.

[0043] The detection method of the instrument for automatically detecting wire surface damage of the present invention is as follows:

[0044] S1. The user installs the detector at one end of the wire;

[0045] S2. Set the moving speed of the fast automatic detector for wire surface damage;

[0046] S3. Turn on the instrument;

[0047] S4. Collect the instrument on the same side after the instrument operation is completed;

[0048] S5. Take out the storage device and record the instrument data.

[0049] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept, which all belong to the protection scope of the present invention.

Claims

1. An instrument for automatically detecting surface damage of a conductor, characterized in that: include: The instrument body comprises an upper support body and a lower support body which are spaced apart from each other; A moving module, the moving module comprising a roller and a measuring sensor, the roller being mounted on opposite surfaces of the upper and lower supports, the roller moving according to the twisting direction of the wire, and the length of the wire being measured by the moving distance of the roller; A camera is installed on the instrument body and is used to photograph the surface of the wire. The inspector observes the surface of the wire through the image transmitted back; A macro detector is installed on the instrument body and is used to measure the diameter of the wire. The recorded wire diameter is used to determine whether the wire diameter has changed due to bending, twisting, stretching, etc. during the wire construction process; A time recorder, which is installed on the instrument body and is used to record the running time of the instrument on the conductor, the moving time of the equipment at the diameter change location, and the moving time of the equipment at the surface defect location. By the moving speed and time, it is determined where the problem location is on the conductor; A reverse sensor, which enables the instrument to automatically run in the reverse direction when the device runs to the other end of the wire or encounters a situation where the wire is broken and cannot pass through, so as to collect the device on the same side after completion; A storage module is installed on the instrument body and is used to record time, deformation, and video parameters.

2. The instrument for automatically detecting surface damage of a conductor according to claim 1, characterized in that: The camera is mounted on the bottom surface of the upper support body.

3. The detection method of the instrument for automatically detecting surface damage of a conductor according to claim 1, characterized in that: After the conductor construction, the instrument is placed on the conductor between two spans. The instrument moves at a uniform speed on the conductor. The surface state and dimensional change parameters of the entire conductor between the two spans are measured through the camera, macro detector, time recorder, reverse sensor, and storage module carried on the instrument. The conductor length is calculated through the set moving speed and the time the instrument takes to pass between the two spans to determine whether the conductor sag meets the construction requirements.

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