Road disease nondestructive testing equipment based on intelligent frequency conversion

Abstract

The invention relates to the technical field of road nondestructive testing, in particular to road disease nondestructive testing equipment based on intelligent frequency conversion, which comprises a frame bottom plate, walking wheels are rotatably connected in the lower surface of the frame bottom plate, a hanging buckle frame is fixedly connected to one side of the frame bottom plate, and transmission shafts are symmetrically and rotatably connected in the lower surface of the frame bottom plate. One end of the transmission shaft away from the frame bottom plate is fixedly connected with a cleaning turntable; the road and the detection parts are cleaned from the perspective of machinery, interference of sundries on detection is reduced, disease detection is performed on the target road from two points of the outside and the inside of the road, the flatness detection condition of the target road is preliminarily known, and the detection efficiency is improved. Meanwhile, whether diseases exist in the target road or not is accurately analyzed in an ultrasonic detection mode, settlement or deformation of the target road is further detected from the perspective of vibration, and the disease degree of the target road is divided in an information fusion mode so that the disease degree of the target road can be visually known.

Description

Technical Field

[0001] The present invention relates to the technical field of road nondestructive testing, and in particular to road disease nondestructive testing equipment based on intelligent frequency conversion. Background Art

[0002] With the increase in traffic volume and the influence of factors such as traffic load and environment, various road surface diseases have gradually occurred. Even some asphalt pavements on highways have developed potholes, cracks, rutting, insufficient surface functions and other damage after being open to traffic for 2 to 3 years, which greatly reduces the performance of the road surface and seriously affects the quality of use and service life of the road surface, causing not only huge economic losses but also severe negative social impacts.

[0003] At present, road surface defects are usually identified by the naked eye, while hidden defects inside the road need to be detected and identified after core sampling. This method is inefficient, cannot achieve non-destructive continuous detection, and cannot classify the degree of road defects, which is not conducive to the rational management of roads.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a nondestructive testing device for road defects based on intelligent frequency conversion to solve the above-mentioned technical defects. The present invention helps to reduce the interference of debris on the detection by cleaning the road and the detection components from a mechanical perspective, so as to improve the accuracy of the detection results. That is, through the transmission between the gears, the cleaning turntable cleans the target road during the forward movement of the frame bottom plate, so as to reduce the influence of residual debris on the target road on subsequent detection, and at the same time helps to improve the stability and accuracy of the information collected by the acoustic sensor on the limit roller; and the road disease analysis is carried out by data acquisition and processing, that is, the disease detection of the target road from two points, the external and internal, which helps to preliminarily understand the smoothness detection of the target road, and at the same time accurately analyzes whether there is a disease inside the target road by ultrasonic detection, so as to timely provide information feedback, and further detects the settlement or deformation of the target road from the perspective of vibration, and divides the degree of disease of the target road by information fusion, so as to intuitively understand the degree of disease of the target road, so as to rationally manage the target road.

[0006] The objective of the present invention can be achieved through the following technical solutions: a nondestructive testing device for road defects based on intelligent frequency conversion comprises a frame bottom plate, a liquid storage tank is fixedly connected to the upper surface of the frame bottom plate, a walking wheel is rotatably connected to the lower surface of the frame bottom plate, a hook frame is fixedly connected to one side of the frame bottom plate, a transmission shaft is rotatably connected to the lower surface of the frame bottom plate, and a cleaning turntable is fixedly connected to one end of the transmission shaft away from the frame bottom plate; The outer fixed sleeve of the transmission shaft is connected with a positioning worm wheel, the lower surface of the frame bottom plate is fixedly connected with a positioning sleeve, the inner part of the positioning sleeve is rotatably connected with a transmission worm, and the end of the transmission worm close to the transmission shaft is meshed with the positioning worm wheel, the lower surface of the frame bottom plate is located at one end of the transmission worm and is fixedly connected with a servo motor, and the servo motor is in transmission connection with the transmission worm; The lower surface of the frame bottom plate is fixedly connected to a bellows at one side of the servo motor, and the end of the bellows away from the servo motor is fixedly connected to an exhaust pipe.

[0007] Preferably, the lower surface of the frame bottom plate is rotatably connected to a limit rod, the upper surface of the limit rod is hinged with an electric push rod, one end of the electric push rod away from the limit rod is fixedly connected to the lower surface of the frame bottom plate, one end of the limit rod away from the frame bottom plate is rotatably connected to a limit roller, the side of the limit rod away from the limit roller is fixedly connected to a fixing frame, the lower surface of the fixing frame is fixedly connected to a cleaning plate, and an acoustic wave sensor is integrally installed inside the outer surface of the limit roller; The lower surface of the frame bottom plate is fixedly connected with an adjusting rod, and the lower surface of the adjusting rod is fixedly connected with a vibrator.

[0008] Preferably, a control panel is fixedly connected to the rear surface of the frame bottom plate, and a road hazard detection platform, an internal and external detection unit, a vibration detection unit and an early warning management unit are arranged inside the control panel; The road defect detection center is used to retrieve the vibration characteristic curve of the limit roller and send the vibration characteristic curve to the internal and external detection unit for internal and external defect detection feedback analysis. The specific internal and external defect detection feedback analysis process is as follows: The detection period of the target road is collected and set as the time threshold, the vibration characteristic curve of the limit roller within the time threshold is obtained, the maximum peak value is obtained from the vibration characteristic curve, and the maximum peak value obtained from the vibration characteristic curve is set as the surface evaluation index, and the surface evaluation index is discriminated: If the surface evaluation index is less than the preset surface evaluation index threshold, a flat signal is generated; if the surface evaluation index is greater than or equal to the preset surface evaluation index threshold, a non-flat signal is generated.

[0009] Preferably, when a leveling signal is generated, the contact area between the acoustic wave sensor and the ground within a time threshold is obtained and set as an error risk area, and the error risk area is compared and analyzed with a preset error risk area threshold to obtain a feedback signal or a deviation signal.

[0010] Preferably, when the feedback signal is generated, the acoustic wave detection information of the acoustic wave sensor within the time threshold is obtained, the acoustic wave detection information includes road thickness, road density and defect assessment value, the defect assessment value indicates the number of road defect types existing on the target road obtained by ultrasonic detection technology, and the road defect types include cracks and cavities; The difference between the road thickness and road density of the target road and the standard road thickness and standard road density is obtained, and the difference between the road thickness and road density and the standard road thickness and standard road density is set as the thickness difference and density difference respectively, and the thickness difference, density difference and defect assessment value are discriminated and processed to obtain a normal signal or a damage signal.

[0011] Preferably, the vibration detection unit is used to respond to the leveling signal, collect vibration detection information of the target road, and perform road disease vibration detection analysis on the vibration detection information. The specific road disease vibration detection analysis process is as follows: The position of the vibrator is adjusted by controlling the adjustment lever, and then the set vibration force is applied to the ground through the vibrator, and then the vibration detection information of the target road within the time threshold is obtained. The vibration detection information represents the ground vibration amplitude, and the preset ground vibration amplitude range corresponding to the vibration force applied to the ground is obtained. The ground vibration amplitude is compared and analyzed with the preset ground vibration amplitude range: If the ground vibration amplitude falls within a preset ground vibration amplitude range, a lossless signal is generated; If the ground vibration amplitude does not fall within the preset ground vibration amplitude range, a lossy signal is generated; Generate normal, damaged, lossless, and lossy signals for interactive analysis: If a normal signal and a lossless signal are generated, a qualified signal is obtained; If a normal signal and a lossy signal, or a damaged signal and a lossless signal, or a damaged signal and a lossy signal are generated, a defective signal is obtained, which is a qualified signal or a defective signal.

[0012] Preferably, after receiving a qualified signal or a disease signal, the early warning management unit obtains the number of disease signals generated by the target road, and sets the number of disease signals generated by the target road as the disease depth index, and compares and analyzes the disease depth index with a preset disease depth index interval to obtain a preset disease level corresponding to the disease depth index in the preset disease depth index interval.

[0013] The beneficial effects of the present invention are as follows: The present invention helps to reduce the interference of debris on detection by cleaning the road and the detection component from a mechanical perspective, so as to improve the accuracy of the detection result. That is, through the transmission between the gears, the cleaning turntable cleans the target road during the forward movement of the frame bottom plate, so as to reduce the influence of residual debris on the target road on subsequent detection. At the same time, during the rotation of the limit roller, the cleaning plate on the fixed frame cleans the surface of the limit roller to reduce adhesion interference, and at the same time helps to improve the stability and accuracy of information collected by the acoustic wave sensor on the limit roller. The present invention performs road damage analysis by means of data collection and processing, that is, detects damage to the target road from both external and internal points, which helps to preliminarily understand the detection status of the target road flatness. At the same time, ultrasonic detection is used to accurately analyze whether there are damages inside the target road, so as to provide timely information feedback. From the perspective of vibration, the settlement or deformation of the target road is further detected, and the degree of damage to the target road is divided by information fusion, so as to intuitively understand the degree of damage to the target road and to rationally manage the target road. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings; Figure 1 It is a stereogram of the present invention; Figure 2 It is a structural schematic diagram of the buckle frame of the present invention; Figure 3 It is a front view of the structure of the present invention; Figure 4 It is a system flow chart of the present invention.

[0015] Legend: 1. Frame base; 2. Liquid storage tank; 3. Travel wheel; 4. Hanging bracket; 5. Drive shaft; 6. Cleaning turntable; 7. Positioning worm gear; 8. Drive worm; 9. Positioning sleeve; 10. Servo motor; 11. Exhaust pipe; 12. Limit rod; 13. Electric push rod; 14. Limit roller; 15. Fixed bracket; 16. Cleaning plate; 17. Adjusting rod; 18. Vibrator; 19. Bellows. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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. Embodiment 1

[0017] See also Figures 1 to 4As shown, the present invention is a nondestructive testing device for road defects based on intelligent frequency conversion, comprising a frame bottom plate 1, a liquid storage tank 2 is fixedly connected to the upper surface of the frame bottom plate 1, a walking wheel 3 is rotatably connected to the lower surface of the frame bottom plate 1, a hook frame 4 is fixedly connected to one side of the frame bottom plate 1, a transmission shaft 5 is rotatably connected to the lower surface of the frame bottom plate 1, and a cleaning turntable 6 is fixedly connected to one end of the transmission shaft 5 away from the frame bottom plate 1; The outer part of the transmission shaft 5 is fixedly sleeved with a positioning worm wheel 7, the lower surface of the frame bottom plate 1 is fixedly connected with a positioning sleeve 9, the inner part of the positioning sleeve 9 is rotatably connected with a transmission worm 8, and the end of the transmission worm 8 close to the transmission shaft 5 is meshed with the positioning worm wheel 7, the lower surface of the frame bottom plate 1 is fixedly connected with a servo motor 10 at one end of the transmission worm 8, and the servo motor 10 is transmission-connected with the transmission worm 8; The lower surface of the frame bottom plate 1 is fixedly connected to a bellows 19 on one side of the servo motor 10, and the end of the bellows 19 away from the servo motor 10 is fixedly connected to an exhaust pipe 11; A fan is provided inside the bellows 19; The lower surface of the frame bottom plate 1 is rotatably connected to a limit rod 12, and an electric push rod 13 is hinged on the upper surface of the limit rod 12. One end of the electric push rod 13 away from the limit rod 12 is fixedly connected to the lower surface of the frame bottom plate 1. One end of the limit rod 12 away from the frame bottom plate 1 is rotatably connected to a limit roller 14. A fixing frame 15 is fixedly connected to the side of the limit rod 12 away from the limit roller 14. A cleaning plate 16 is fixedly connected to the lower surface of the fixing frame 15. An acoustic wave sensor is integrally installed inside the outer surface of the limit roller 14. An adjusting rod 17 is fixedly connected to the lower surface of the frame bottom plate 1, and a vibrator 18 is fixedly connected to the lower surface of the adjusting rod 17; In the embodiment of the present invention, when the frame bottom plate 1 is controlled to detect the target road, the bellows 19 and the servo motor 10 are controlled to work, so that the servo motor 10 drives the transmission worm 8 to rotate synchronously inside the positioning sleeve 9, and through the transmission between the gears, the transmission worm 8 drives the positioning worm wheel 7 to rotate synchronously, so that the transmission shaft 5 is rotated, and the cleaning turntable 6 is driven to rotate through the transmission shaft 5, so that the cleaning turntable 6 cleans the target road during the process of the frame bottom plate 1 moving forward, so as to reduce the influence of residual debris on the target road on subsequent detection; The electric push rod 13 is controlled to work, so that the electric push rod 13 drives the limit rod 12 to rotate, and then the limit rod 12 drives the limit roller 14 to perform vibration detection on the target road. During the rotation of the limit roller 14, the surface of the limit roller 14 is cleaned by the cleaning plate 16 on the fixing frame 15 to reduce adhesion interference, and at the same time, it is helpful to improve the stability and accuracy of the information collected by the acoustic wave sensor on the limit roller 14; At the same time, during the operation of the bellows 19, the generated gas is discharged from the other end of the exhaust pipe 11, thereby performing secondary treatment on the performance of the limiting roller 14 after being cleaned by the cleaning plate 16, thereby improving the full contact between the limiting roller 14 and the ground; When the vibrator 18 is controlled to work, the position of the vibrator 18 is adjusted by controlling the adjusting rod 17, and then the variable frequency vibration detection is performed after the vibrator 18 contacts the ground. Embodiment 2

[0018] The rear surface of the frame bottom plate 1 is fixedly connected with a control panel, and the control panel is provided with a road disease detection platform, an internal and external detection unit, a vibration detection unit and an early warning management unit; The road disease detection center is used to retrieve the vibration characteristic curve of the limit roller 14 and send the vibration characteristic curve to the internal and external detection units; After receiving the vibration characteristic curve, the internal and external detection unit immediately performs internal and external disease detection feedback analysis on the vibration characteristic curve, so as to detect the disease of the target road from both the external and internal points, thereby helping to improve the accuracy of the detection results. The specific internal and external disease detection feedback analysis process is as follows: The detection period of the target road is collected and set as the time threshold, the vibration characteristic curve of the limit roller 14 within the time threshold is obtained, the maximum peak value is obtained from the vibration characteristic curve, and the maximum peak value obtained from the vibration characteristic curve is set as the surface evaluation index, and the surface evaluation index is judged: If the surface evaluation index is less than a preset surface evaluation index threshold, a leveling signal is generated; If the surface evaluation index is greater than or equal to the preset surface evaluation index threshold, an uneven signal is generated, and the flat signal or the uneven signal is sent to the early warning management unit. After receiving the flat signal or the uneven signal, the early warning management unit immediately performs the preset early warning operation corresponding to the flat signal or the uneven signal, so as to detect and feedback the flatness of the target road.

[0019] When the leveling signal is generated, the contact area between the acoustic sensor and the ground within the time threshold is obtained and set as the error risk area. The error risk area is then compared with the preset error risk area threshold for analysis: If the error risk area is equal to a preset error risk area threshold, a feedback signal is generated; If the error risk area is not equal to the preset error risk area threshold, a deviation signal is generated and sent to the early warning management unit. After receiving the deviation signal, the early warning management unit immediately performs a preset early warning operation corresponding to the deviation signal so as to adjust the limit roller 14 to ensure that the surface of the limit roller 14 is in full contact with the ground to reduce the risk of detection error.

[0020] When the feedback signal is generated, the acoustic wave detection information of the acoustic wave sensor within the time threshold is obtained, and the acoustic wave detection information includes road thickness, road density and defect assessment value. The defect assessment value indicates the number of road defect types existing on the target road obtained by ultrasonic detection technology. The road defect types include cracks, cavities, etc.; The difference between the road thickness and road density of the target road and the standard road thickness and road density is obtained, and the difference between the road thickness and road density and the standard road thickness and road density is set as the thickness difference and density difference respectively, and the thickness difference, density difference and defect assessment value are judged: If the thickness difference is greater than the preset thickness difference threshold or the density difference is greater than the preset density difference threshold or the defect assessment value is not equal to zero, a normal signal is generated; If the thickness difference is greater than the preset thickness difference threshold or the density difference is greater than the preset density difference threshold or the defect assessment value is not equal to zero, a damage signal is generated and the normal signal or the damage signal is sent to the early warning management unit. After receiving the normal signal or the damage signal, the early warning management unit immediately performs the preset early warning operation corresponding to the normal signal or the damage signal to understand the ultrasonic detection results of the target road.

[0021] When a leveling signal is generated, the vibration detection unit is used to respond to the leveling signal and collect vibration detection information of the target road at the same time, and perform road disease vibration detection analysis on the vibration detection information. By analyzing the target road disease situation from the perspective of vibration, the specific road disease vibration detection analysis process is as follows: The position of the vibrator 18 is adjusted by controlling the adjusting rod 17, and then the set vibration force is applied to the ground through the vibrator 18, and then the vibration detection information of the target road within the time threshold is obtained. The vibration detection information represents the ground vibration amplitude, and the preset ground vibration amplitude range corresponding to the ground applied vibration force is obtained. The ground vibration amplitude is compared and analyzed with the preset ground vibration amplitude range: If the ground vibration amplitude falls within a preset ground vibration amplitude range, a lossless signal is generated; If the ground vibration amplitude does not fall within the preset ground vibration amplitude range, a lossy signal is generated, and the lossless signal or the lossy signal is sent to the early warning management unit. After receiving the lossless signal or the lossy signal, the early warning management unit immediately performs the preset early warning operation corresponding to the lossless signal or the lossy signal to understand the target road vibration detection result.

[0022] Generate normal, damaged, lossless, and lossy signals for interactive analysis: If a normal signal and a lossless signal are generated, a qualified signal is obtained; If a normal signal and a lossy signal or a damaged signal and a lossless signal or a damaged signal and a lossy signal are generated, a disease signal is obtained, and the qualified signal or the disease signal is sent to the early warning management unit. After receiving the qualified signal or the disease signal, the early warning management unit obtains the number of disease signals generated by the target road, and sets the number of disease signals generated by the target road as the disease depth index, and compares and analyzes the disease depth index with the preset disease depth index interval. When the disease depth index is in the preset disease depth index interval and the preset disease level corresponding to the preset disease level is obtained, the preset early warning text corresponding to the preset disease level is immediately displayed, so as to intuitively understand the degree of disease of the target road and rationally manage the target road.

[0023] In summary, the present invention helps to reduce the interference of debris on the detection by cleaning the road and the detection components from a mechanical perspective, so as to improve the accuracy of the detection results. That is, through the transmission between the gears, the cleaning turntable 6 cleans the target road during the forward movement of the frame bottom plate 1, so as to reduce the influence of residual debris on the target road on subsequent detection. At the same time, during the rotation of the limiting roller 14, the cleaning plate 16 on the fixing frame 15 cleans the surface of the limiting roller 14 to reduce adhesion interference, and at the same time helps to improve the stability and accuracy of the information collected by the acoustic wave sensor on the limiting roller 14. Road defect analysis is performed through data collection and processing, that is, detecting defects on the target road from both external and internal points. This helps to gain a preliminary understanding of the target road's smoothness detection status. At the same time, ultrasonic detection is used to accurately analyze whether there are defects inside the target road so that information feedback can be provided in a timely manner. The settlement or deformation of the target road is further detected from the perspective of vibration, and the degree of target road defects is divided through information fusion, so as to intuitively understand the degree of target road defects and rationally manage the target road.

[0024] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0025] The size of the coefficient is to quantify each parameter to obtain a specific value for subsequent comparison. The size of the coefficient depends on the amount of sample data and the preliminary setting of the corresponding operating coefficient for each set of sample data by technical personnel in this field; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-destructive testing device for road defects based on intelligent frequency conversion, comprising a frame bottom plate (1), characterized in that: The upper surface of the frame bottom plate (1) is fixedly connected to a liquid storage tank (2), the lower surface of the frame bottom plate (1) is internally rotatably connected to a walking wheel (3), one side of the frame bottom plate (1) is fixedly connected to a hanging buckle frame (4), the lower surface of the frame bottom plate (1) is internally symmetrically rotatably connected to a transmission shaft (5), and one end of the transmission shaft (5) away from the frame bottom plate (1) is fixedly connected to a cleaning turntable (6); The transmission shaft (5) is fixedly sleeved with a positioning worm wheel (7) on the outside, the lower surface of the frame bottom plate (1) is fixedly connected with a positioning sleeve (9), the positioning sleeve (9) is rotatably connected with a transmission worm (8) inside, and the end of the transmission worm (8) close to the transmission shaft (5) is meshingly connected with the positioning worm wheel (7), the lower surface of the frame bottom plate (1) is fixedly connected with a servo motor (10) on one side of the transmission worm (8), and the servo motor (10) is transmission-connected with the transmission worm (8), the lower surface of the frame bottom plate (1) is fixedly connected with a bellows (19) on one side of the servo motor (10), and the end of the bellows (19) away from the transmission worm (8) is fixedly connected with an exhaust pipe (11).

2. The road disease nondestructive testing equipment based on intelligent frequency conversion according to claim 1 is characterized in that: The lower surface of the frame bottom plate (1) is rotatably connected to a limit rod (12), the upper surface of the limit rod (12) is hinged with an electric push rod (13), one end of the electric push rod (13) away from the limit rod (12) is fixedly connected to the lower surface of the frame bottom plate (1), one end of the limit rod (12) away from the frame bottom plate (1) is rotatably connected to a limit roller (14), the side of the limit rod (12) away from the limit roller (14) is fixedly connected to a fixing frame (15), the lower surface of the fixing frame (15) is fixedly connected to a cleaning plate (16), and an acoustic wave sensor is integrally installed inside the outer surface of the limit roller (14); An adjustment rod (17) is fixedly connected to the lower surface of the frame bottom plate (1), and a vibrator (18) is fixedly connected to the lower surface of the adjustment rod (17).

3. The road disease nondestructive testing equipment based on intelligent frequency conversion according to claim 2 is characterized in that: A control panel is fixedly connected to the rear surface of the frame bottom plate (1), and a road hazard detection platform, an internal and external detection unit, a vibration detection unit and an early warning management unit are arranged inside the control panel; The road defect detection center is used to retrieve the vibration characteristic curve of the limit roller (14), and send the vibration characteristic curve to the internal and external detection unit for internal and external defect detection feedback analysis. The specific internal and external defect detection feedback analysis process is as follows: The detection period of the target road is collected and set as a time threshold, a vibration characteristic curve of the limit roller (14) within the time threshold is obtained, a maximum wave peak value is obtained from the vibration characteristic curve, and the maximum wave peak value obtained from the vibration characteristic curve is set as a surface evaluation index, and the surface evaluation index is subjected to judgment processing: If the surface evaluation index is less than the preset surface evaluation index threshold, a flat signal is generated; if the surface evaluation index is greater than or equal to the preset surface evaluation index threshold, a non-flat signal is generated.

4. The road disease nondestructive testing equipment based on intelligent frequency conversion according to claim 3 is characterized in that: When a leveling signal is generated, the contact area between the acoustic wave sensor and the ground within a time threshold is obtained and set as an error risk area. The error risk area is compared and analyzed with a preset error risk area threshold to obtain a feedback signal or a deviation signal.

5. The road disease nondestructive testing equipment based on intelligent frequency conversion according to claim 4 is characterized in that: When the feedback signal is generated, the acoustic wave detection information of the acoustic wave sensor within the time threshold is obtained, and the acoustic wave detection information includes road thickness, road density and defect evaluation value. The defect evaluation value indicates the number of road defect types existing in the target road obtained by ultrasonic detection technology. The road defect types include cracks and cavities. The difference between the road thickness and road density of the target road and the standard road thickness and standard road density is obtained, and the difference between the road thickness and road density and the standard road thickness and standard road density is set as the thickness difference and density difference respectively, and the thickness difference, density difference and defect assessment value are discriminated and processed to obtain a normal signal or a damage signal.

6. The road disease nondestructive testing equipment based on intelligent frequency conversion according to claim 3 is characterized in that: The vibration detection unit is used to respond to the leveling signal, collect vibration detection information of the target road, and perform road disease vibration detection analysis on the vibration detection information. The specific road disease vibration detection analysis process is as follows: The position of the vibrator (18) is adjusted by controlling the adjustment rod (17), and a set vibration force is applied to the ground through the vibrator (18), thereby obtaining vibration detection information of the target road within the time threshold, the vibration detection information represents the ground vibration amplitude, and a preset ground vibration amplitude range corresponding to the ground applied vibration force is obtained, and the ground vibration amplitude is compared with the preset ground vibration amplitude range for analysis: If the ground vibration amplitude falls within a preset ground vibration amplitude range, a lossless signal is generated; If the ground vibration amplitude does not fall within the preset ground vibration amplitude range, a lossy signal is generated; Generate normal, damaged, lossless, and lossy signals for interactive analysis: If a normal signal and a lossless signal are generated, a qualified signal is obtained; If a normal signal and a lossy signal, or a damaged signal and a lossless signal, or a damaged signal and a lossy signal are generated, a defective signal is obtained, which is a qualified signal or a defective signal.

7. The road disease nondestructive testing equipment based on intelligent frequency conversion according to claim 6 is characterized in that: After receiving a qualified signal or a disease signal, the early warning management unit obtains the number of disease signals generated by the target road, sets the number of disease signals generated by the target road as the disease depth index, and compares and analyzes the disease depth index with a preset disease depth index interval to obtain a preset disease level corresponding to the disease depth index being in the preset disease depth index interval.

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