Full-automatic concrete pole detection method and equipment thereof

Abstract

The invention discloses a full-automatic concrete electric pole detection method and equipment thereof, and particularly relates to the technical field of electric pole detection, the full-automatic concrete electric pole detection method and equipment thereof comprise a concrete electric pole and a tail clamping and fixing part clamped and fixed on the outer surface of the tail of the concrete electric pole, and the tail clamping and fixing part is used for limiting displacement of the concrete electric pole; the middle of the concrete pole is supported on the supporting sliding plate; the head of the concrete pole is connected with a winch through a pull rope. The winch is used for applying tension to the concrete pole. A tension sensor is arranged on the pull rope and used for measuring tension, and the tension sensor and the winch are connected with main control equipment; the other side of the head of the concrete pole is connected with the deflection sensor, the deflection sensor is electrically connected with the main control equipment and used for measuring the displacement of the head, the full-automatic concrete pole detection equipment can accurately detect the mechanical property of the concrete pole, the detection quality and efficiency of the concrete pole are improved, digitization and automation of detection are achieved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This invention relates to the field of pole inspection technology, and more specifically, to a fully automatic method and equipment for inspecting concrete poles. Background Technology

[0002] The bending and crack resistance coefficients of concrete poles are key parameters for inspecting their quality. Currently, the load-bearing capacity of concrete poles is tested by measuring their bending moment and deflection. This test requires pulling a chain hoist to provide lateral tension, and professional personnel to operate instruments and record the readings. The entire process is labor-intensive and time-consuming, and the process may cause irreversible damage due to excessive force, leading to inaccurate measurements. Furthermore, the results of manual testing have a large margin of error. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fully automatic concrete pole inspection method and equipment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A fully automatic method and apparatus for detecting concrete poles are disclosed. The apparatus includes a concrete pole, a tail clamping and fixing component fixed to the outer surface of the tail of the concrete pole, the tail clamping and fixing component being spiral-shaped to limit the displacement of the concrete pole, a support plate supporting the middle of the concrete pole, a winch connected to the head of the concrete pole via a pull rope, the winch being used to apply tension to the concrete pole, a tension sensor being provided on the pull rope for measuring the tension, the tension sensor and the winch being connected to a main control device, and a deflection sensor connected to the other side of the head of the concrete pole, the deflection sensor being electrically connected to the main control device for measuring the displacement of the head of the concrete pole.

[0005] As a further preferred embodiment of the present invention, it also includes two needle displacement sensors disposed at the tail end of the concrete pole, with the probes of the needle displacement sensors facing the tail end of the concrete pole, and the needle displacement sensors being electrically connected to the main control device.

[0006] The above structural design ensures that the concrete pole has a certain amount of leeway at the tail end, preventing the concrete pole from breaking due to sudden changes in tension. Furthermore, the influence of the leeway on deflection measurement is eliminated by using a needle-type displacement sensor.

[0007] As a further preferred embodiment of the present invention, the detection method is as follows: Step 1: Use the main control equipment to control the winch, which applies lateral tension to the concrete pole, precisely controlling the rope length and tension value to eliminate human error; the winch motor output torque The calculation formula is: in To set the tension (kN), The diameter of the winch drum (m) is the diameter of the winch drum. For mechanical efficiency and satisfying .

[0008] rope length control accuracy satisfy:

[0009] in This represents the number of encoder pulses for the motor. The lead of the lead screw (mm) This is the reduction ratio.

[0010] Step 2: Set the detection process cycle through the time relay in the main control equipment. Set the detection process for concrete poles to operate once every 3 minutes. The time relay controls the winch to increase the pulling force at fixed time intervals to build a fully closed-loop automatic detection process. Detection cycle timing control:

[0011] No. Subsequent loading tensile force increment:

[0012] in This represents the creep coefficient of concrete.

[0013] Step 3: Monitor the data from the tension sensor, deflection sensor, and needle displacement sensor in real time. The automatic sensors (tension / deflection / displacement) transmit data back in real time. The wireless data acquisition and processing system collects and organizes the sensor data, provides fracture early warning, and generates structured electronic reports to achieve digital management of the detection data. Electronic report generation includes: Time series data matrix:

[0014] Flexural strength calculation:

[0015] Tail offset calculation: = (A+B) / 2, where A and B are The measured values ​​of the pin displacement sensors on both sides at any given time; Deflection value

[0016]

[0017] Automatically generate PDF electronic reports and transmit them wirelessly; Step 4: If the fracture warning is not triggered, the loading motor will stop after the tension sensor reaches the set tension value to ensure the accuracy and safety of the detection process, and at the same time, the values ​​displayed by the tension sensor and deflection sensor will be transmitted back and recorded. Shutdown control satisfies:

[0018] This is the actual tensile force; And the criteria for determining whether the deflection is acceptable:

[0019] Step 5: Based on the data automatic identification and verification system, the mechanical load values ​​in the generated electronic report are compared and analyzed with the national standard values ​​for cement poles. If the detected value exceeds the rated threshold, the cement pole is automatically determined to be unqualified in terms of bearing capacity.

[0020] As a further preferred embodiment of the present invention, when any triggering condition is met in step 3 to trigger a fracture warning, the winch is stopped, the cement pole is determined to be unqualified, and a structured electronic report is generated. Preventing the danger of concrete poles breaking by using fracture warning systems.

[0021] As a further preferred embodiment of the present invention, the triggering condition for the fracture warning is a downward shift in the actual tensile force curve.

[0022] As a further preferred embodiment of the present invention, the triggering condition for the fracture early warning is that the deflection change deviates from the predicted change curve, which upgrades the monitoring from a static threshold to a trend early warning, captures early signals of structural performance degradation, realizes advanced prediction of structural failure, and improves safety.

[0023] The technical effects and advantages of this invention are as follows: Fully automated concrete pole testing equipment can accurately test the mechanical properties of cement poles, improving the quality and efficiency of cement pole testing, realizing the digitalization and automation of testing, and reducing the intensity of manual labor.

[0024] 1. Replace manual operation with an electric motor loading system. The loading motor is automatically provided with lateral tension by an electronic control program, which precisely controls the length of the pull rope and the tension value, eliminating human operation errors.

[0025] 2. Multi-sensor collaborative working mechanism The loading motor is started and stopped by dynamic feedback control of the tension sensor (it stops when the set tension value is reached), ensuring the accuracy and safety of the detection process.

[0026] 3. Data Comparison and Analysis Based on the automatic data identification and verification system, the mechanical load values ​​in the generated electronic reports are compared and analyzed with the national standard values ​​for cement poles. Compared with the traditional manual method, it has outstanding substantive features and significant technological progress in terms of identification accuracy, data processing rate, automation level and error tracing capability. Attached Figure Description

[0027] Figure 1 This is a layout diagram of a fully automatic concrete pole inspection method and equipment according to the present invention.

[0028] Figure 2 This is a flowchart illustrating the workflow of a fully automated concrete pole inspection method and equipment according to the present invention.

[0029] Figure 3 This is a topology diagram of a fracture early warning system for a fully automated concrete pole detection method and equipment according to the present invention.

[0030] The attached figures are labeled as follows: 1. Needle displacement sensor; 2. Tail clamping and fixing component; 3. Support slide plate; 4. Tension sensor; 5. Winch; 6. Main control equipment; 7. Pull rope; 8. Deflection sensor. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] refer to Figure 1 As shown, a fully automatic concrete pole inspection method and equipment are disclosed. The equipment includes a concrete pole, a tail clamping and fixing component 2 clamped and fixed to the outer surface of the tail of the concrete pole, the tail clamping and fixing component 2 being spiral-shaped to limit the displacement of the concrete pole; the middle of the concrete pole is supported by a support plate 3; the head of the concrete pole is connected to a winch 5 via a pull rope 7, the winch 5 being used to apply tension to the concrete pole; a tension sensor 4 is provided on the pull rope 7, the tension sensor 4 being used to measure the tension, the tension sensor 4 and the winch 5 being connected to a main control device 6; a deflection sensor 8 is connected to the other side of the head of the concrete pole, the deflection sensor 8 being electrically connected to the main control device 6, and being used to measure the displacement of the head of the concrete pole; it also includes two needle displacement sensors 1 disposed at the tail of the concrete pole, disposed on both sides of the tail of the concrete pole, the probes of the needle displacement sensors 1 facing the tail of the concrete pole, the needle displacement sensors 1 being electrically connected to the main control device 6.

[0033] The above structural design ensures that the tail of the concrete pole has a certain amount of leeway to avoid the concrete pole breaking due to sudden changes in tension, and the influence of the leeway on deflection measurement is eliminated by the needle displacement sensor 1.

[0034] like Figure 2 As shown, in this embodiment of the invention, the detection method is as follows: Step 1: Use the main control equipment to control the winch, which applies lateral tension to the concrete pole, precisely controlling the length of the rope and the tension value to eliminate human error; Winch motor output torque The calculation formula is: in To set the tension (kN), The diameter of the winch drum (m) is the diameter of the winch drum. For mechanical efficiency and satisfying .

[0035] rope length control accuracy satisfy:

[0036] in This represents the number of encoder pulses for the motor. The lead of the lead screw (mm) This is the reduction ratio.

[0037] Step 2: Set the detection process cycle through the time relay in the main control equipment. Set the detection process for concrete poles to operate once every 3 minutes. The time relay controls the winch to increase the pulling force at fixed time intervals to build a fully closed-loop automatic detection process. Detection cycle timing control:

[0038] No. Subsequent loading tensile force increment:

[0039] in This represents the creep coefficient of concrete.

[0040] Step 3: Monitor the data from the tension sensor, deflection sensor, and needle displacement sensor in real time. The automatic sensors (tension / deflection / displacement) transmit data back in real time. The wireless data acquisition and processing system collects and organizes the sensor data, provides fracture early warning, and generates structured electronic reports to achieve digital management of the detection data. Electronic report generation includes: Time series data matrix:

[0041] Flexural strength calculation:

[0042] Tail offset calculation: = (A+B) / 2, where A and B are The measured values ​​of the pin displacement sensors on both sides at any given time; Deflection value

[0043] Automatically generate PDF electronic reports and transmit them wirelessly; Step 4: If the fracture warning is not triggered, the loading motor will stop after the tension sensor 4 reaches the set tension value to ensure the accuracy and safety of the detection process, and at the same time, the values ​​displayed by the tension sensor and deflection sensor will be transmitted back and recorded.

[0044] Automatically generate PDF electronic reports and transmit them wirelessly; Step 4: If the fracture warning is not triggered, the loading motor will stop after the tension sensor 4 reaches the set tension value to ensure the accuracy and safety of the detection process, and at the same time, the values ​​displayed by the tension sensor and deflection sensor will be transmitted back and recorded. Shutdown control satisfies:

[0045] This is the actual tensile force; And the criteria for determining whether the deflection is acceptable:

[0046] Step 5: Based on the data automatic identification and verification system, the mechanical load values ​​in the generated electronic report are compared and analyzed with the national standard values ​​for cement poles. If the detected value exceeds the rated threshold, the concrete pole bearing capacity is automatically determined to be unqualified.

[0047] like Figure 2 and Figure 3 As shown, in this embodiment of the invention, when step 3 meets any triggering condition to trigger a fracture warning, the winch 5 is stopped, the concrete pole is determined to be unqualified, and a structured electronic report is generated to prevent the concrete pole from breaking and causing danger through fracture warning.

[0048] The trigger condition for the fracture warning is a downward shift in the actual tensile force curve, and the imminent fracture is judged by the sudden change in tensile force before fracture.

[0049] The trigger condition for the fracture early warning is that the deflection change deviates from the predicted change curve. The monitoring will be upgraded from a static threshold to a trend early warning, capturing early signals of structural performance degradation, realizing advanced prediction of structural failure, and improving safety.

[0050] The prediction method is as follows: Step a, obtaining and preprocessing sample data, determining the specific structural parameters of the input layer, hidden layer and output layer of the population top, establishing a new BP neural network using the newff function in MATLAB software, with BTF (Bayesian topological function) as the training function and BLF (Bayesian Laplace approximation method) as the learning algorithm to obtain the initial population; Step b: Calculate the fitness value of the particle, determine the individual extreme value and the global optimal extreme value, update the velocity and displacement of the particle to obtain the particle fitness update value, iterate multiple times until the error reaches the expected value or the set maximum number of iterations, and output the optimal weight and threshold. Step c: Assign optimal weights and thresholds to the neural network, train the network, and calculate the error; Step d: If E < ε is not satisfied, repeat step c. After E < ε is satisfied, predict the deflection change of the first displacement point in the second time period. E is the error value, which is the absolute difference between the actual displacement and the predicted displacement of the first displacement point in the first time period. ε is the maximum error range, which is 10% of the actual displacement.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fully automatic concrete pole detection method and apparatus thereof, the apparatus comprising a concrete pole, characterized in that: Also included is a tail clamping fixing component clamped and fixed to the outer surface of the tail of the concrete pole, the tail clamping fixing component is in a spiral shape, and is used for limiting displacement of the concrete pole; The middle part of the concrete pole is supported on a support sliding plate; The head of the concrete pole is connected with a winch through a pull rope, the winch is used for applying a pulling force to the concrete pole, a pulling force sensor is arranged on the pull rope, the pulling force sensor is used for measuring the pulling force, and the pulling force sensor and the winch are connected with a main control device; The head of the concrete pole is connected with a deflection sensor on the other side, the deflection sensor is electrically connected with the main control device, and is used for measuring displacement of the head of the concrete pole.

2. The fully automatic concrete pole detection method and apparatus thereof according to claim 1, characterized in that: Also included is a needle type displacement sensor arranged at the tail of the concrete pole, the needle type displacement sensor has two, is arranged on both sides of the tail of the concrete pole, and a probe of the needle type displacement sensor faces the tail of the concrete pole, and the needle type displacement sensor is electrically connected with the main control device.

3. The fully automatic concrete pole detection method and apparatus thereof according to claim 2, characterized in that: The detection method is, Step 1: The main control device is used to control the winch, and the winch applies lateral tension to the concrete pole, accurately controls the length and tension value of the pull rope, and eliminates the manual operation error; the winch motor output torque The calculation formula is: Wherein is the set tension (kN), is the winch drum diameter (m), is the mechanical efficiency and satisfies . The pull rope length control precision satisfies: Wherein is the number of motor encoder pulses, is the lead screw lead (mm), is the reduction ratio. Step 2: Set the detection process cycle through the time relay in the main control device, set the detection process of the concrete pole to act once every 3 minutes, and the time relay controls the winch to increase the tension at fixed time intervals, to build a full-closed-loop automatic detection process; detection cycle timing control: The first load tension increment: Wherein is the concrete creep coefficient. Step 3: Real-time monitoring of tension sensor, deflection sensor and needle type displacement sensor data, automatic sensor (tension / deflection / displacement) real-time data return, wireless data acquisition and processing system collects and organizes sensor data, and performs fracture early warning, while generating structured electronic report, realizing digital management of detection data; electronic report generation includes: Time series data matrix: Bending strength calculation: Tail offset calculation: = (A + B) / 2, where A, B are The measurement value of the needle displacement sensor on both sides of the time; deflection value Automatically generate PDF electronic report and wireless transmission; Step 4: When the fracture warning is not triggered, the tension sensor reaches the set tension value, the loading motor is stopped to ensure the accuracy and safety of the detection process, and at the same time, the values displayed by the tension sensor and the deflection sensor are returned. The shutdown control satisfies: The actual tension; and the deflection qualified determination condition: Step 5: Based on the data automatic identification and checking system, the generated electronic report in the mechanical load value is compared and analyzed with the national standard value of the cement pole, and the automatic judgment of the unqualified bearing capacity of the cement pole is made after the detection value exceeds the rated threshold value.

4. The fully automatic concrete pole detection method and apparatus thereof according to claim 3, characterized in that: When the fracture early warning is triggered according to any trigger condition in step 3, the winch is stopped, it is determined that the cement pole is unqualified, and a structured electronic report is generated.

5. The fully automatic concrete pole detection method and apparatus thereof according to claim 4, characterized in that: The trigger condition of the fracture early warning is that the actual pulling force value curve is downward.

6. The fully automatic concrete pole detection method and apparatus thereof according to claim 4, wherein: The trigger condition of the fracture early warning is that the deflection change deviates from the predicted change curve.

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