Communication optical cable testing device

Abstract

The invention relates to the technical field of optical cable communication, in particular to a communication optical cable testing device which comprises a testing table, a testing module is installed on the testing table and comprises a clamping assembly and a friction assembly, and the clamping assembly comprises a fixed part and a driven part; the friction assembly comprises a power piece, and the power piece is connected with a protruding rod through a cam. A first sliding groove and a second sliding groove are formed in the test board, a moving block is arranged in the first sliding groove, a through groove is formed in one end of the moving block and is in sliding fit with the protruding rod, and the moving block is matched with a rotating wheel; a supporting rod is connected into the second sliding groove and sleeved with a spring, and the spring is fixedly connected with the driven piece. The power piece is in signal connection with a controller, an encoder is arranged on the moving piece, a displacement sensor is arranged on the moving block, and a fiber grating strain sensor is arranged on the supporting rod. The wear resistance of the optical cable sample is tested, and key parameters in the testing process are monitored in real time, so that the accuracy and reliability of a testing result are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of optical cable communications, and in particular to a communication optical cable testing device. Background Art

[0002] In the communications industry, optical cables are the main medium for information transmission, and their quality and reliability are crucial to the stability and efficiency of the entire communications network. Therefore, strict testing of optical cables is a key link in ensuring their quality. Traditional communication optical cable testing devices mostly rely on manual operation and simple mechanical structures, which have many shortcomings. In complex environments (such as extreme cold, high temperature, and strong vibration), the wear resistance of the outer sheath of the optical cable is a key indicator that determines its life. Traditional optical cable wear resistance testing devices generally have the following technical defects: First, in terms of clamping the optical cable, traditional devices often rely on manual experience to adjust the clamping force, which can easily cause the optical cable to slip during the test or be damaged by uneven force, thereby affecting the accuracy of the test results and the integrity of the optical cable.

[0003] Secondly, traditional test equipment can usually only be tested at room temperature and cannot simulate the impact of extreme environments on the wear resistance of optical cables. However, in actual applications, optical cables may work in various harsh environments, such as high temperature, low temperature and humidity, and these environmental factors will have a significant impact on the performance of optical cables.

[0004] In addition, traditional testing devices also have shortcomings in monitoring the health status of runner bearings. As a key component in the testing device, the performance of the runner bearing directly affects the accuracy and stability of the test. However, traditional devices often rely on regular disassembly or vibration analysis to monitor the bearing status. This method is not only time-consuming and labor-intensive, but also unable to monitor small changes in the bearing in real time.

[0005] In summary, the existing communication optical cable test devices have deficiencies in clamping force adjustment, environmental adaptability and bearing health status monitoring. Therefore, there is an urgent need for an optical cable wear test device that integrates high-precision clamping control, multi-environment simulation and real-time health diagnosis to improve test efficiency, accuracy and safety. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a communication optical cable testing device, which is used to test the wear resistance of optical cable samples by simulating the friction environment that the optical cable may encounter during actual use, and monitor the key parameters during the test in real time to ensure the accuracy and reliability of the test results.

[0007] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: a communication optical cable test device, comprising a test bench, on which a test module for testing the wear resistance of the optical cable is installed, the test module comprises a clamping assembly and a friction assembly for fixing the optical cable sample, the clamping assembly comprises a fixing member and a driven member; The friction assembly includes a power piece, which is fixedly connected to the test bench, and the output end of the power piece is fixedly connected to a cam, and the cam is fixedly connected to a convex rod on the side away from the power piece; the test bench is provided with a first slide groove and a second slide groove, a moving block is slidably matched in the first slide groove, a through groove is provided at one end of the moving block, the through groove is slidably matched with the convex rod, and a rotating wheel is rotatably matched on the side of the moving block away from the first slide groove, and a groove matching the optical cable sample is provided on the side wall of the rotating wheel; A support rod is fixedly connected in the second slide groove, a spring is sleeved on the support rod, one end of the spring is slidably matched with the second slide groove, the other end of the spring is fixedly connected to the follower, the follower is slidably matched with the second slide groove, and the fixing member is fixedly connected to the test bench and is located on the side of the first slide groove away from the second slide groove; The power part signal is connected to the controller, an encoder is installed on the output shaft of the power part, a displacement sensor is installed on the moving block, and a fiber Bragg grating strain sensor for real-time monitoring of the effective number of spring turns is installed on the support rod. The encoder, displacement sensor and fiber Bragg grating strain sensor are all connected to the controller signal; When the displacement sensor detects that the displacement of the moving block exceeds the preset displacement threshold in the controller, that is, reaches the limit position, the controller triggers a reverse command to reverse the movement direction of the power piece; When the fiber Bragg grating strain sensor detects that the compression deformation of the spring on the support rod deviates from the linear relationship with the tension of the optical cable sample, the controller starts the self-check mode and generates an elastic failure warning signal; When the controller receives the cam speed monitored in real time by the encoder and there is a deviation from the preset speed threshold in the controller, the controller starts the self-calibration program to adjust the torque output of the power part.

[0008] Further, the fixing member and the driven member both include a fixing block, the fixing block is provided with a fixing hole, a plug hole penetrating the fixing block is opened in the fixing hole, a screw is threaded in the plug hole, an array of staggered V-shaped grooves is provided on the inner wall of the fixing hole, an elastic rubber layer is embedded in the inner wall of the V-shaped groove, and a plurality of pressure sensors are installed on the inner wall of the fixing hole, all the pressure sensors are integrated into a pressure sensor array, and the pressure sensors are connected to the controller signal; When the pressure sensor detects that the real-time pressure difference on both sides of the fixing hole exceeds 15%, the controller triggers an early warning signal to notify the user to change the screw insertion depth to adjust the clamping force. When the real-time monitoring value of the pressure sensor exceeds the preset pressure threshold in the controller, the controller triggers an early warning signal to notify the change of the screw insertion depth to adjust the clamping force, and records it as an abnormal clamping event.

[0009] Furthermore, a temperature control module is installed on the top of the test bench, and the temperature control module includes a mounting frame, a semiconductor cooling sheet and a plurality of infrared heating lamps. The infrared heating lamps and the semiconductor cooling sheet are both mounted on the mounting frame, and the mounting frame is evenly arranged along the travel path of the friction assembly. The mounting frame is fixedly connected to the test bench, and a temperature sensor is embedded on the mounting frame. The temperature sensor, the semiconductor cooling sheet and the infrared heating lamp are all connected to the controller signal. When the real-time monitoring value of the temperature sensor exceeds the preset temperature threshold in the controller, the temperature control program is started, and the controller adjusts the power of the infrared heating lamp and the semiconductor cooling plate.

[0010] Furthermore, an early warning module is installed on the test bench. The early warning module includes a buzzer and an indicator light. Both the buzzer and the indicator light are connected to the controller signal. When the controller receives the early warning signal, the early warning module sends out different sound and light alarm signals to remind the operator to take corresponding measures.

[0011] Furthermore, the test bench is also provided with an interactive module, which includes a camera, a display screen and an input device. The camera is installed on a mounting bracket. The display screen is used to display real-time data and test results during the test process. The input device is used for operators to input test parameters and instructions. The camera, display screen and input device are all connected to the controller signal.

[0012] Furthermore, the surface of the convex rod is coated with a piezoelectric ceramic layer and connected to the controller signal. The controller receives the numerical value of the piezoelectric signal after Fourier transformation in real time. When the proportion of frequency energy above 2kHz in the harmonic component of the numerical value exceeds the limit, it is determined that the wheel bearing is worn, and the controller triggers a shutdown maintenance command.

[0013] Furthermore, the test bench is also provided with a safety protection module, which includes a guardrail and an emergency stop button installed around the test bench. The emergency stop button is connected to the controller signal. When an emergency occurs, the test is stopped by pressing the emergency stop button.

[0014] Furthermore, a protective cover for preventing debris generated during the test from splashing can be detachably connected to the test bench. The protective cover covers the friction assembly and the clamping assembly, and a transparent observation window is provided on the protective cover for observing the state of the optical cable sample during the test.

[0015] Furthermore, it also includes a data recording and analysis module, which includes a data storage unit and a data analysis unit. The data storage unit is used to store all data collected by the encoder, displacement sensor, fiber grating strain sensor, pressure sensor and temperature sensor during the test, as well as the operation record and early warning information of the controller; the data analysis unit is responsible for processing and analyzing the data stored in the data storage unit to generate a test report; at the same time, the data analysis unit is also used to predict the life and fault type of the optical cable sample based on historical data.

[0016] Furthermore, it also includes a remote communication module for remote monitoring and management. The remote communication module is connected to the controller signal, and the remote communication module transmits test data, test results and maintenance record information to a remote server or mobile device via a wireless network.

[0017] The above scheme has the following beneficial effects: 1. Compared with the existing technology that relies on manual experience to adjust the clamping force, which can easily cause the optical cable to slip or be damaged, this solution uses the V-groove array and elastic rubber layer design on the inside of the fixing hole, combined with the pressure sensor array to monitor the clamping force distribution in real time (such as triggering an early warning when the left and right pressure difference is >15%), and can accurately adjust the screw insertion depth to ensure that the optical cable is evenly stressed and without local overload. The pressure sensor is linked with the controller to effectively avoid test errors or sample damage caused by unbalanced clamping force, and significantly improve test repeatability and reliability.

[0018] 2. Compared with the existing technology that can only test at room temperature and cannot simulate the impact of extreme environments on the wear resistance of optical cables, this solution uses a temperature control module combined with a semiconductor refrigeration sheet and an infrared heating lamp, and with real-time feedback from a temperature sensor, it can dynamically adjust the test environment temperature within the range of -20℃~80℃ (temperature control accuracy ±0.1℃). For example, verify the embrittlement characteristics of the optical cable sheath at low temperatures, or test the change in friction coefficient caused by material softening at high temperatures, fully simulate real application scenarios, and fill the environmental adaptability defects of traditional testing equipment.

[0019] 3. Compared with the existing technology that relies on regular disassembly or vibration analysis and cannot monitor the health status of the wheel bearing in real time, this solution achieves early warning of bearing failure by coating the surface of the convex rod with a piezoelectric ceramic layer and combining Fourier transform to analyze the proportion of high-frequency harmonic energy (such as energy above 2kHz exceeding 15% to determine wear). For example, when microcracks appear on the bearing raceway, the high-frequency component of friction vibration will increase significantly, and the controller will immediately trigger a shutdown command and record the fault code to avoid test interruption or equipment damage caused by bearing failure and reduce maintenance costs.

[0020] 4. Compared with the shortcomings of the existing technology, which has a single protection measure and lacks an emergency response mechanism, this solution integrates multiple security protection modules: Physical protection: Removable acrylic protective cover prevents debris from flying, and transparent viewing window supports real-time visual inspection.

[0021] Emergency stop: The emergency stop button directly cuts off the main circuit to ensure the safety of operators.

[0022] Sound and light warning: The buzzer and indicator light combine to give an alarm, distinguishing different fault types such as over-temperature and clamping imbalance.

[0023] At the same time, the interactive module provides visual data (such as pressure thermograms and displacement curves), simplifies parameter settings and status monitoring, and lowers the operational threshold.

[0024] 5. Compared with the existing technology that only records basic test data and lacks in-depth analysis capabilities, this solution achieves the following through the data recording and analysis module: Life prediction: Calculate the remaining life based on the wear amount-time curve (such as 0.1mm / thousand times).

[0025] Fault tracing: Combined with spring stiffness attenuation (fiber Bragg grating Monitoring) and bearing harmonic energy correlation analysis to locate the root cause of failure.

[0026] 6. Compared with the insufficiency of the prior art in which the test conditions are unstable due to the fluctuation of the motor speed, this solution uses the encoder to feedback the cam speed in real time, combined with dynamic adjustment of the motor torque output (such as the current increases from 2A to 3A when overshooting at 1200rpm) to ensure constant friction frequency. At the same time, the fiber grating strain sensor monitors the spring compression. If nonlinear deformation (such as elastic failure) is detected, the controller automatically reduces the load and generates an early warning to avoid test failure due to fatigue of mechanical components. Additional aspects and advantages of the present invention will be partially given in the following description, and partially will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an axonometric diagram of a test bench in an embodiment of a communication optical cable test device of the present invention; Figure 2 It is a schematic diagram of the operation of an embodiment of a communication optical cable testing device of the present invention; Figure 3 It is an overall axonometric diagram of an embodiment of a communication optical cable testing device of the present invention; Figure 4 It is a framework diagram of an embodiment of a communication optical cable testing device of the present invention.

[0028] The figure marks in the drawings of the specification include: 1, test bench; 101, first slide groove; 102, second slide groove; 2, fixed block; 3, screw; 4, cam; 5, protruding rod; 6, moving block; 601, through groove; 7, rotating wheel; 8, support rod; 9, spring; 10, mounting bracket; 11, display screen; 12, input device; 13, optical cable sample. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The following is further described in detail through specific implementation methods: Embodiment 1:

[0033] As attached Figure 1 , Figure 2 and Figure 4As shown: a communication optical cable test device, including a test bench 1, on which a test module for testing the wear resistance of the optical cable is installed, the test module includes a clamping assembly and a friction assembly for fixing the optical cable sample 13, and the clamping assembly includes a fixing member and a driven member. The fixing member and the driven member both include a fixing block 2, the fixing block 2 is provided with a fixing hole, a plug hole penetrating the fixing block 2 is opened in the fixing hole, a screw 3 is threaded in the plug hole, an array of staggered V-grooves is provided on the inner wall of the fixing hole, an elastic rubber layer is embedded in the inner wall of the V-groove, and a number of pressure sensors are installed on the inner wall of the fixing hole, and all pressure sensors are integrated with a pressure sensor array. In this embodiment, the pressure sensor can be a piezoelectric or resistive strain pressure sensor, preferably a PCB Piezotronics model 102B06 (range 0-100N, frequency response>5kHz), and the array layout can monitor the clamping force distribution at multiple points. When the optical cable is clamped, the elastic rubber layer in the V-groove is compressed and deformed, and the pressure sensor converts the mechanical stress into an electrical signal.

[0034] The friction assembly includes a power part (in this embodiment, the power part is a motor, and a Panasonic MINAS A6 series AC servo motor (400W, model MHMF092L1V2M) is selected), the power part is fixedly connected to the test bench 1, the output end of the power part is fixedly connected to a cam 4, and the cam 4 is fixedly connected to a protruding rod 5 on the side away from the power part; the test bench 1 is provided with a first slide groove 101 and a second slide groove 102, a moving block 6 is slidably matched in the first slide groove 101, a through groove 601 is provided at one end of the moving block 6, the through groove 601 is slidably matched with the protruding rod 5, and a rotating wheel 7 is rotatably matched on the side of the moving block 6 away from the first slide groove 101, and a groove matching the optical cable sample 13 is provided on the side wall of the rotating wheel 7.

[0035] A support rod 8 is fixedly connected in the second slide groove 102, and a spring 9 is sleeved on the support rod 8. One end of the spring 9 is slidably matched with the second slide groove 102, and the other end of the spring 9 is fixedly connected to the follower, and the follower is slidably matched with the second slide groove 102. The fixed member is fixedly connected to the test bench 1 and is located on the side of the first slide groove 101 away from the second slide groove 102; the power member signal is connected to the controller, and an encoder is installed on the output shaft of the power member (in this embodiment, the encoder is an incremental photoelectric encoder, and Omron E6B2-CWZ6C (resolution 2000 P / R, output NPN open collector) is selected in this embodiment. The motor speed is converted into a pulse signal through the cooperation of the grating disk and the photoelectric sensor, and the controller calculates the actual speed according to the pulse frequency), and a displacement sensor is installed on the moving block 6 (in this embodiment, the displacement sensor adopts a linear variable differential transformer (LVDT) or a magnetic scale, and TE is selected in this embodiment Connectivity model HR-050 (range ±25mm, linearity ±0.25%), outputs analog voltage or digital signal by detecting the linear displacement of the moving block 6), and a fiber Bragg grating strain sensor for real-time monitoring of the effective number of turns of the spring 9 is installed on the support rod 8 (the fiber Bragg grating strain sensor principle in this embodiment, the Bragg wavelength of the fiber Bragg grating changes with the strain of the spring 9, and the wavelength offset is monitored by the demodulator and converted into the compression of the spring 9 and the effective number of turns. In this embodiment, Micron Optics model OSA-320 (wavelength demodulation range 1520-1570nm, strain resolution ), the pressure sensor, encoder, displacement sensor and fiber grating strain sensor are all connected to the controller signal.

[0036] When the displacement sensor detects that the displacement of the moving block 6 exceeds the preset displacement threshold in the controller, that is, reaches the limit position, the controller triggers a reverse command to reverse the movement direction of the power component; when the fiber grating strain sensor detects that the compression deformation of the spring 9 on the support rod 8 deviates from the linear relationship between the tension of the optical cable sample 13, the controller starts the self-test mode and generates an elastic failure warning signal; when the controller receives the cam 4 speed monitored in real time by the encoder and there is a deviation from the preset speed threshold in the controller, the controller starts the self-calibration program to adjust the torque output of the power component.

[0037] When the pressure sensor detects that the real-time pressure difference on both sides of the fixing hole exceeds 15%, the controller triggers a warning signal to notify the relevant personnel to change the screw-in depth of screw 3 to adjust the clamping force; when the real-time monitoring value of the pressure sensor exceeds the preset pressure threshold in the controller, the controller triggers a warning signal to notify the relevant personnel to change the screw-in depth of screw 3 to adjust the clamping force, and records it as an abnormal clamping event.

[0038] The test bench 1 is also provided with an interactive module, which includes a camera, a display screen 11 (an industrial touch screen is selected in this embodiment, such as the Weiluntong MT8071iE, 7 inches, 800×480) and an input device 12 (physical buttons / knobs, such as the APEM model IP67 sealed encoder). The camera is installed on the mounting frame 10, the display screen 11 is used to display real-time data and test results during the test, and the input device 12 is used for the operator to input test parameters and instructions. The camera, the display screen 11 and the input device 12 are all connected to the controller signal.

[0039] The specific implementation process is as follows: When the wear resistance test of the optical cable sample 13 is required, start the controller and select the test mode (such as cycle test, limit load test) through the display screen 11 of the interactive module. Enter the test parameters through the input device 12: preset speed, displacement threshold (such as ±100mm) and pressure threshold (such as single-point pressure upper limit 80N). Perform sensor calibration, zero the pressure sensor under no-load state, and calibrate the initial wavelength of the fiber Bragg grating: record when the spring 9 is not compressed Reference value (e.g. 1550nm).

[0040] The calculation process of fiber Bragg wavelength is: ; in, is the effective refractive index, is the effective grating period. The strain of spring 9 causes the fiber Bragg grating to stretch / compress. Offset With strain Proportional to ( ).

[0041] Insert the two ends of the optical cable sample 13 to be tested into the fixing holes of the fixing part and the driven part respectively, and ensure that the V-shaped groove matches the outer sheath of the optical cable sample 13. Then tighten the screw 3 in the jack, and observe the thermal diagram of the pressure sensor through the display screen 11 until the left and right pressure difference is <5%, that is, until the real-time monitoring data of the pressure sensor in the display screen 11 shows a symmetrical distribution (such as 58N on the left and 62N on the right), so as to fix the optical cable sample 13 to be tested. Then embed the optical cable sample 13 to be tested into the groove of the rotating wheel 7, and manually pull the optical cable sample 13 to confirm that there is no slippage.

[0042] The controller sends a command through the input device 12, and the controller starts the motor, which runs at a constant speed of 800rpm. The output shaft of the motor drives the cam 4 to rotate, and the cam 4 drives the protruding rod 5. The through groove 601 set on the protruding rod 5 converts the rotational motion of the protruding rod 5 into linear motion, so that the moving block 6 slides in the first sliding groove 101. When the moving block 6 slides, it drives the rotating wheel 7, and the rotating wheel 7 applies a periodic friction test to the optical cable. The pressure sensor and displacement sensor data are jointly analyzed to distinguish "normal wear" from "abnormal friction caused by loose clamping".

[0043] During the friction test, the optical cable sample 13 drives the follower to move in the second slide slot 102, and the follower squeezes the spring 9 in the second slide slot 102. When the fiber grating detects that the stiffness of the spring 9 decreases, the controller synchronously reduces the motor torque to avoid overload.

[0044] The details of the test execution and dynamic control process are as follows: Stage 1 (Constant Friction): The controller displays in real time: displacement curve (monitoring the reciprocating amplitude of moving block 6), displacement sensor output displacement ±100mm, and triggering reverse command when exceeding the threshold; pressure distribution thermal map (to ensure uniform clamping force), when the standard deviation of the pressure array is >10N, it prompts to adjust the depth of screw 3; spring 9 tension-compression relationship diagram (to verify linearity), and verify the tension consistency through the compression of spring 9 (such as compression Corresponding tension ).

[0045] The pressure, displacement and compression of spring 9 are recorded every 10ms and a CSV format log is generated.

[0046] Phase 2 (Load Sudden Change Test): Manually increase the speed from 800 rpm to 1200 rpm through input device 12, and observe: the speed following performance of the encoder feedback, that is, the encoder feedback speed rise time (such as <200ms); whether the controller triggers torque compensation (such as the current increases from 2A to 2.5A (torque compensation takes effect)); fiber Bragg grating monitoring The corresponding spring 9 strain is 0.025%. If the nonlinearity is >5%, an alarm will be triggered.

[0047] Phase 3 (fault simulation): Manually loosen the screw 3 on one side, and the pressure sensor array detects a sudden drop in pressure on one side (such as the left / right pressure ratio>1.5, that is, 30N on the left and 60N on the right). The controller immediately pauses the test and pops up the "unbalanced clamping force" alarm. Manually block the movement of the moving block 6, detect the motor current exceeding the limit (such as>5A), and the controller cuts off the power supply and records the fault code.

[0048] When the friction test reaches the preset number of cycles (such as 5000 times); the sheath of the optical cable is damaged (detected with the assistance of camera, the grayscale change of machine vision detection is >20%); the permanent deformation of spring 9 exceeds the limit (fiber Bragg grating detection Δλ is irreversible >0.5nm); the sensor triggers the safety threshold (such as the permanent deformation of spring 9 exceeds 5%).

[0049] The data output in the final display screen 11: generate a wear amount-time curve (calculated by integrating the displacement sensor data); export an abnormal event log (such as "2023-10-01 14:23:05 Pressure exceeds the limit"); evaluate the wear resistance level of the optical cable (according to the industry standard GB / T 7424.2).

[0050] Embodiment 2:

[0051] As attached Figure 3 As shown, the difference from Example 1 is that a temperature control module is installed on the top of the test bench 1, and the temperature control module includes a mounting frame 10, a semiconductor cooling sheet (TEC1-12706 is selected in this embodiment (maximum cooling power 60W, temperature difference ℃)) and several infrared heating lamps (in this embodiment, Philips PAR38 infrared lamps (power 150W, wavelength 2-5 )), the infrared heating lamp and the semiconductor cooling sheet are both mounted on a mounting frame 10, the mounting frame 10 is evenly arranged along the travel path of the friction assembly, the mounting frame 10 is fixedly connected to the test bench 1, and a temperature sensor is embedded on the mounting frame 10 (in this embodiment, the model selected is: OMEGA F2021, with a range of -50~150℃ and an accuracy of ±0.1℃).

[0052] The temperature sensor, semiconductor cooling sheet and infrared heating lamp are all connected to the controller signal. When the real-time monitoring value of the temperature sensor exceeds the preset temperature threshold in the controller, the temperature control program is started, and the controller adjusts the power of the infrared heating lamp and semiconductor cooling sheet.

[0053] An early warning module is also installed on the test bench 1. The early warning module includes a buzzer (in this embodiment, the model is: TDKPS1240P02BT) and an indicator light (in this embodiment, a red, green and yellow three-color LED is selected, model Broadcom ASMT-MW00). The buzzer and the indicator light are both connected to the controller signal. When the controller receives the early warning signal, the early warning module sends out different sound and light alarm signals to remind the operator to take corresponding measures.

[0054] The specific implementation process is as follows: set the test temperature range (such as -20°C to 80°C), temperature rise rate (such as 5°C / min) and over-temperature threshold (such as ±3°C) through the interactive module. Start the test and perform the wear resistance test of the optical cable according to the steps of Example 1. During the test, the controller continuously monitors the ambient temperature and adjusts the working state of the temperature control module as needed.

[0055] Low temperature test: Start the semiconductor refrigeration chip to cool the test area to -20℃. The controller monitors the temperature sensor data. If the actual temperature is lower than the set value, the cooling power is reduced (for example, from 100% to 70%).

[0056] High temperature test: Turn on the infrared heating lamp and raise the temperature to 80°C. If the temperature exceeds the threshold, turn off the heating lamp and start the cooling plate to balance the temperature.

[0057] The controller adjusts the power of the semiconductor cooling plate and the heating lamp according to the feedback from the temperature sensor: if the measured temperature is lower than the target value, the infrared heating lamp is turned on (power accounts for 60%) and the cooling plate is turned off. If it exceeds the upper threshold, the cooling plate is turned on (voltage is adjusted to 10V) and the heating lamp power is reduced to 20%.

[0058] When the temperature deviates from the preset value for more than 3 minutes (such as actual 45°C, target 40°C), a three-level warning is triggered: yellow light flashes (warning) → red light is always on + buzzer sounds 1s / time (serious over-limit) → automatic shutdown (extreme abnormality). The operator needs to confirm the alarm through input device 12 and resume the test or enter the safe mode. After the test, record and analyze the test data to evaluate the wear resistance of the optical cable. Check the working record of the temperature control module to ensure that it plays an effective role during the test.

[0059] Phase 1 (constant temperature wear test): The friction test was run 500 times at -20°C to monitor the embrittlement of the cable sheath (surface cracks were detected by camera).

[0060] Phase 2 (Temperature Cycle Test): The temperature changes between -20℃ and 80℃ at a rate of 5℃ / min. The machine is stopped every 100 cycles to check the spring 9 stiffness (fiber grating detection whether the change is reversible).

[0061] Embodiment 3:

[0062] The difference from Example 2 is that the surface of the convex rod 5 is coated with a piezoelectric ceramic layer (using PZT-5H piezoelectric sheet, model: STEMiNC SMQA-5H40-2525), and is connected to the controller signal. The controller receives the numerical value of the piezoelectric signal after Fourier transformation in real time. When the proportion of frequency energy above 2kHz in the harmonic component of the numerical value exceeds the limit, it is determined that the bearing of the wheel 7 is worn, and the controller triggers a shutdown maintenance command.

[0063] The specific implementation process is as follows: On the basis of Example 2, the piezoelectric ceramic layer on the surface of the protruding rod 5 is installed and debugged. Ensure that the piezoelectric ceramic layer can normally receive and convert mechanical stress into electrical signals. Prepare and clamp the optical cable sample 13 according to the steps of Example 1. Set the monitoring parameters of the piezoelectric signal through the controller, such as setting the threshold value of the proportion of frequency energy above 2kHz in the harmonic component.

[0064] Start the test and perform the wear resistance test of the optical cable according to the steps of Example 1. During the test, the controller receives and processes the piezoelectric signal in real time, performs Fourier transform analysis, and monitors the energy proportion of the harmonic component. When the energy proportion of the frequency above 2kHz in the harmonic component exceeds the preset threshold, the controller determines that the bearing of the wheel 7 is worn and triggers the shutdown maintenance command. The operator checks the status of the bearing of the wheel 7 according to the shutdown command and performs necessary maintenance and replacement.

[0065] After the test, record and analyze the test data to evaluate the wear resistance of the optical cable. Check the monitoring records of the piezoelectric signal to ensure that it plays an effective role in fault determination.

[0066] Embodiment 4:

[0067] The difference from Example 3 is that a safety protection module is also provided on the test bench 1, and the safety protection module includes a guardrail and an emergency stop button installed around the test bench 1. The emergency stop button is connected to the controller signal. When an emergency occurs, the test is stopped by pressing the emergency stop button.

[0068] The test bench 1 is detachably connected with a protective cover for preventing debris generated during the test from splashing. The protective cover covers the friction assembly and the clamping assembly, and is provided with a transparent observation window for observing the state of the optical cable sample 13 during the test.

[0069] The specific implementation process is as follows: Before the test begins, check whether the guardrail is firmly installed, whether the emergency stop button is sensitive and reliable, and whether the protective cover is fully covered. Prepare the optical cable sample 13 according to the steps of Example 1 and clamp it.

[0070] Start the test and perform the abrasion resistance test of the optical cable according to the steps of Example 1. During the test, the operator should always pay attention to the safety protection around the test bench 1 to ensure the safety of the test process. In the abrasion test, the sheath is deliberately damaged, and the protective cover effectively blocks more than 95% of the flying particles.

[0071] When an emergency occurs, the operator should immediately press the emergency stop button to stop the test and check the safety status of the test bench 1 and surrounding equipment.

[0072] After the test is completed, turn off the test equipment and disconnect the power supply. Clean up the debris and residue on the test bench 1 and surrounding equipment to keep the equipment clean and tidy.

[0073] Embodiment 5:

[0074] The difference from Example 4 is that it also includes a data recording and analysis module, which includes a data storage unit (this embodiment uses an industrial-grade SSD, model: Kingston DC500M, with a capacity of 1TB) and a data analysis unit. The data storage unit is used to store all data collected by the encoder, displacement sensor, fiber Bragg grating strain sensor, pressure sensor and temperature sensor during the test, as well as the operation records and warning information of the controller; the data analysis unit is responsible for processing and analyzing the data stored in the data storage unit to generate a test report; at the same time, the data analysis unit is also used to predict the life of the optical cable sample 13 based on historical data (based on the LSTM model training historical data, predict the remaining life of the optical cable (output such as "wear exceeds the limit after 500 cycles remaining")) and the fault type (combining piezoelectric signals with temperature data, the AI ​​algorithm distinguishes between "bearing wear" and "low-temperature lubrication failure" (push the diagnosis result when the confidence level is >90%)).

[0075] It also includes a remote communication module for remote monitoring and management. The remote communication module is connected to the controller signal. The remote communication module transmits test data, test results and maintenance record information to a remote server or mobile device via a wireless network.

[0076] The specific implementation process is as follows: set the test parameters through the interactive module and start the data storage function of the data recording and analysis module. During the test, the data storage unit records the data of the encoder, displacement sensor, fiber Bragg grating strain sensor, pressure sensor and temperature sensor in real time, as well as the operation record and warning information of the controller.

[0077] Start the remote communication module to transmit test data, test results and maintenance record information to a remote server or mobile device via a wireless network. Remote managers can view test data and analysis results in real time and perform remote control and guidance as needed.

[0078] After the test is completed, the data analysis unit processes and analyzes the stored data and generates a test report. The test report includes information such as the wear resistance evaluation, fault prediction and life prediction of the optical cable. According to the maintenance records and information in the test report, the test equipment is maintained and maintained as necessary. The working status of the data recording and analysis module and the remote communication module is checked regularly to ensure that they can work normally and provide effective data support.

[0079] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A communication optical cable testing device, comprising a test bench (1), on which is mounted a test module for testing the wear resistance of the optical cable, characterized in that: The test module comprises a clamping assembly and a friction assembly for fixing the optical cable sample (13), wherein the clamping assembly comprises a fixing member and a driven member; The friction assembly comprises a power member, the power member is fixedly connected to the test bench (1), the output end of the power member is fixedly connected to a cam (4), and the cam (4) is fixedly connected to a protruding rod (5) on a side away from the power member; a first slide groove (101) and a second slide groove (102) are provided on the test bench (1), a moving block (6) is slidably matched in the first slide groove (101), a through groove (601) is provided at one end of the moving block (6), the through groove (601) is slidably matched with the protruding rod (5), a rotating wheel (7) is rotatably matched on a side of the moving block (6) away from the first slide groove (101), and a groove matching the optical cable sample (13) is provided on the side wall of the rotating wheel (7); A support rod (8) is fixedly connected to the second slide groove (102), a spring (9) is sleeved on the support rod (8), one end of the spring (9) is slidably engaged with the second slide groove (102), the other end of the spring (9) is fixedly connected to a follower, the follower is slidably engaged with the second slide groove (102), and the fixing member is fixedly connected to the test bench (1) and is located on a side of the first slide groove (101) away from the second slide groove (102); The power component signal is connected to a controller, an encoder is installed on the output shaft of the power component, a displacement sensor is installed on the moving block (6), a fiber optic Bragg grating strain sensor for real-time monitoring of the effective number of turns of the spring (9) is installed on the support rod (8), and the encoder, the displacement sensor and the fiber optic Bragg grating strain sensor are all connected to the controller signal; When the displacement sensor detects that the displacement of the moving block (6) exceeds a preset displacement threshold in the controller, that is, reaches a limit position, the controller triggers a reverse command to reverse the movement direction of the power member; When the fiber Bragg grating strain sensor detects that the compression deformation of the spring (9) on the support rod (8) deviates from the linear relationship with the tension of the optical cable sample (13), the controller starts the self-check mode and generates an elastic failure warning signal; When the controller receives the cam (4) speed monitored in real time by the encoder and there is a deviation from a preset speed threshold in the controller, the controller starts a self-calibration program to adjust the torque output of the power component.

2. The communication optical cable testing device according to claim 1, characterized in that: The fixing member and the driven member both comprise a fixing block (2), the fixing block (2) being provided with a fixing hole, the fixing hole being provided with a socket penetrating the fixing block (2), the socket being threaded with a screw (3), the inner wall of the fixing hole being provided with an array of V-shaped grooves distributed in an alternating manner, the inner wall of the V-shaped groove being embedded with an elastic rubber layer, and a plurality of pressure sensors being installed on the inner wall of the fixing hole, all the pressure sensors being integrated into a pressure sensor array, and the pressure sensors being connected to the controller signal; When the pressure sensor detects that the real-time pressure difference between the two sides of the fixing hole exceeds 15%, the controller triggers an early warning signal to notify the controller to change the screwing depth of the screw (3) to adjust the clamping force; When the real-time monitoring value of the pressure sensor exceeds the preset pressure threshold in the controller, the controller triggers an early warning signal to notify the controller to change the screwing depth of the screw (3) to adjust the clamping force, and records it as an abnormal clamping event.

3. The communication optical cable testing device according to claim 2, characterized in that: A temperature control module is installed on the top of the test bench (1), the temperature control module comprises a mounting frame (10), a semiconductor cooling sheet and a plurality of infrared heating lamps, the infrared heating lamps and the semiconductor cooling sheet are both mounted on the mounting frame (10), the mounting frame (10) is evenly arranged along the travel path of the friction component, the mounting frame (10) is fixedly connected to the test bench (1), a temperature sensor is embedded on the mounting frame (10), and the temperature sensor, the semiconductor cooling sheet and the infrared heating lamp are all connected to the controller signal; When the real-time monitoring value of the temperature sensor exceeds the preset temperature threshold in the controller, the temperature control program is started, and the controller adjusts the power of the infrared heating lamp and the semiconductor cooling plate.

4. The communication optical cable testing device according to claim 3, characterized in that: The test bench (1) is also equipped with an early warning module, which includes a buzzer and an indicator light. Both the buzzer and the indicator light are connected to the controller signal. When the controller receives the early warning signal, the early warning module sends out different sound and light alarm signals, thereby reminding the operator to take corresponding measures.

5. The communication optical cable testing device according to claim 4, characterized in that: The test bench (1) is also provided with an interactive module, which includes a camera, a display screen (11) and an input device (12). The camera is mounted on the mounting frame (10). The display screen (11) is used to display real-time data and test results during the test process. The input device (12) is used for an operator to input test parameters and instructions. The camera, the display screen (11) and the input device (12) are all connected to the controller signal.

6. The communication optical cable testing device according to claim 5, characterized in that: The surface of the convex rod (5) is coated with a piezoelectric ceramic layer and is connected to the controller signal. The controller receives the numerical value of the piezoelectric signal after Fourier transformation in real time. When the proportion of frequency energy above 2kHz in the harmonic component of the numerical value exceeds the limit, it is determined that the bearing of the wheel (7) is worn, and the controller triggers a shutdown maintenance instruction.

7. The communication optical cable testing device according to claim 6, characterized in that: The test bench (1) is also provided with a safety protection module, which includes a guardrail and an emergency stop button installed around the test bench (1). The emergency stop button is connected to the controller signal. When an emergency occurs, the test is stopped by pressing the emergency stop button.

8. The communication optical cable testing device according to claim 7, characterized in that: A protective cover for preventing debris generated during the test from splashing is detachably connected to the test bench (1); the protective cover covers the friction assembly and the clamping assembly; and a transparent observation window for observing the state of the optical cable sample (13) during the test is provided on the protective cover.

9. The communication optical cable testing device according to claim 8, characterized in that: It also includes a data recording and analysis module, which includes a data storage unit and a data analysis unit. The data storage unit is used to store all data collected by the encoder, displacement sensor, fiber Bragg grating strain sensor, pressure sensor and temperature sensor during the test, as well as the operation record and warning information of the controller; the data analysis unit is responsible for processing and analyzing the data stored in the data storage unit to generate a test report; at the same time, the data analysis unit is also used to predict the life and fault type of the optical cable sample (13) based on historical data.

10. The communication optical cable testing device according to claim 9, characterized in that: It also includes a remote communication module for remote monitoring and management. The remote communication module is connected to the controller signal. The remote communication module transmits test data, test results and maintenance record information to a remote server or mobile device via a wireless network.

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