Portable rut testing device based on inclination angle sensor and like

Abstract

The utility model relates to a portable rut testing device based on inclination angle sensors and the like, which belongs to the technical field of detection and comprises a detection main body, a sensor and a controller. The hand-held rod is hinged with the detection main body and is used for providing thrust for the detection main body; the control box is fixed on the handheld rod, is electrically connected with the detection main body and is used for collecting and processing parameter information of track detection; and the distance measuring wheel rolls and walks on the rut surface. According to the utility model, a hinge folding design is adopted between the hand-held rod and the detection main body, and the detection equipment is miniaturized and convenient to carry.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology, specifically relating to a portable device for rut testing based on sensors such as tilt angle. Background Technology

[0002] Rutting testing is an important indicator in the periodic evaluation and maintenance of road surfaces. Rutting depth directly reflects the comfort of vehicle driving, as well as the safety and service life of the road surface. Rutting testing provides data support for road maintenance departments to develop reasonable maintenance strategies and plans, is used for daily inspections, tracks rutting trends, promptly identifies problems and takes measures to extend the service life of roads.

[0003] Chinese patent CN113585023A discloses an asphalt pavement rutting monitoring system based on an inclination sensor, comprising several parts including an inclination measurement unit group, a 4G DTU module, and a cloud platform. This system performs real-time monitoring of rutting within the pavement to promptly detect rutting defects. However, this technology suffers from drawbacks such as requiring numerous measurement points, long processing time, low rutting detection efficiency, high equipment cost, and is unsuitable for small-scale rutting detection needs in localized road sections or work sites, especially as it is not portable. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A portable device for rut testing based on sensors such as tilt angle includes: a detection body for detecting rut parameters; and a handle arm hinged to the detection body for providing thrust to the detection body.

[0006] The control box, fixed to the handrail, is electrically connected to the detection body and is used to collect and process parameter information of rut detection; the measuring wheel rolls on the rut surface.

[0007] Furthermore, the detection body includes a detection beam and a tilt sensor, the tilt sensor being integrated into the detection beam and electrically connected to the control box.

[0008] Furthermore, the handrail includes a straight rod, a movable tube, and a U-shaped seat. The U-shaped seat is fixed on the detection body. One end of the straight rod is hinged to the U-shaped seat, and the other end of the straight rod is inserted into the movable tube. The other end of the movable tube is provided with a handle, and the control box is fixed on the movable tube.

[0009] Furthermore, the U-shaped seat is provided with a locking bolt, the end of which is connected to the straight rod.

[0010] Furthermore, the movable tube is provided with a plum blossom handle bolt, the end of which is abutted against the straight rod.

[0011] Furthermore, the control box includes a housing, inside which a controller, an LCD screen, and a battery pack are disposed. The housing is provided with several buttons, the LCD screen and the buttons are electrically connected to the controller, and the battery pack provides operating power to the controller.

[0012] Furthermore, the tilt sensor is a Hall effect magnetic angle sensor.

[0013] Furthermore, the handle is provided with several wave patterns.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a portable device for rut testing based on sensors such as tilt angle. The device adopts a hinged folding design between the handle and the main body of the test, which makes the test equipment miniaturized and easy to carry.

[0016] 2. This utility model provides a portable device for rut testing based on tilt angle sensors. This device uses a high-precision tilt angle sensor to calculate the device's moving position and the height difference relative to the reference plane to obtain the rut test results, avoiding the impact of human misreading on the test accuracy. It has high test accuracy and high test efficiency.

[0017] 3. This utility model provides a portable device for rut testing based on sensors such as tilt angle. The handle of this device adopts a telescopic mechanism design, and the telescopic length can be adjusted according to the operator's height to facilitate the operation of the testing device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the application scenario of the device of this utility model;

[0019] Figure 2 This is a schematic diagram illustrating the testing principle of the device of this utility model;

[0020] Figure 3 This is a schematic diagram of the device structure of this utility model;

[0021] Figure 4 This is a front view structural diagram of the device of this utility model;

[0022] Figure 5 This is an enlarged structural diagram of part A of the device of this utility model;

[0023] Figure 6 This is a rear view schematic diagram of the device of this utility model;

[0024] Figure 7 This is an enlarged structural diagram of part B of the device of this utility model.

[0025] In the diagram: 1. Detection body, 2. Handrail, 21. Straight rod, 22. Movable tube, 23. Handle, 24. Plum handle bolt, 25. U-shaped seat, 26. Pin, 27. Locking bolt, 28. Cotter pin, 3. Control box, 4. Distance measuring wheel. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] like Figures 1 to 7 As shown, this utility model provides a portable rut testing device based on sensors such as tilt angle, including: a detection body 1 for detecting rut parameters; a handle 2, hinged to the detection body 1 for providing thrust to the detection body 1; a control box 3, fixed to the handle 2 and electrically connected to the detection body 1 for collecting and processing parameter information from rut detection; and a measuring wheel 4 that rolls on the rut surface. Specifically, the measuring wheel 4 has a double-wheel structure, with two sets of measuring wheels 4 symmetrically installed at both ends of the detection beam. The wheel diameter is 200mm, and the wheel surface is covered with a wear-resistant rubber layer (Shore hardness 70HA). The wheel axle has a built-in high-precision photoelectric encoder (resolution 500 pulses / revolution), which calculates the travel distance (accuracy ±1mm / m) by measuring the number of rotations. The device of this utility model adopts a hinged folding design between the handrail and the detection body. When it is necessary to test the ruts, the handrail 2 is folded up to 90 degrees or at a certain angle to the horizontal. The bottom end of the handrail 2 is provided with a hinged connection locking component to fix the handrail 2 to the detection body 1 at the bottom. The detection equipment of this utility model is miniaturized and easy to carry.

[0028] The detection body 1 includes a detection beam and a tilt sensor. The tilt sensor is integrated within the detection beam and is electrically connected to the control box 3. Specifically, the detection beam is a high-strength rectangular aluminum alloy beam structure with a hollow interior to integrate the sensor assembly. Measuring wheels 4 are bolted to both ends of the detection beam, and the wheel spacing is adjustable (to adapt to different lane widths). The tilt sensor consists of multiple Hall effect magnetic angle sensors (e.g., one every 20cm) arranged at equal intervals inside the detection beam to detect the tilt angle at various points on the rut cross-section. The sensors are connected to the controller in the control box 3 via shielded cables, with a data sampling frequency of 100Hz to ensure dynamic accuracy of ±0.1°. An auxiliary sensor (optional) can be added inside the detection beam to compensate for measurement errors caused by road surface bumps.

[0029] The handrail 2 includes a straight rod 21, a movable tube 22, and a U-shaped seat 25. The U-shaped seat 25 is fixed on the detection body 1. One end of the straight rod 21 is hinged to the U-shaped seat 25, and the other end of the straight rod 21 is inserted into the movable tube 22. The other end of the movable tube 22 is provided with a handle 23, and the control box 3 is fixed on the movable tube 22.

[0030] The U-shaped seat 25 is provided with a locking bolt 27, and the end of the locking bolt 27 is abutted and connected to the straight rod 21.

[0031] The movable tube 22 is provided with a plum blossom handle bolt 24, and the end of the plum blossom handle bolt 24 is abutted and connected to the straight rod 21.

[0032] The control box 3 includes a housing, inside which are a controller, an LCD screen, and a battery pack. Several buttons are mounted on the housing. The LCD screen and buttons are electrically connected to the controller, and the battery pack provides power to the controller. Specifically, the controller uses a microcontroller to process the rut angle information collected by the tilt sensor, calculates the rut parameters, and displays the results on the LCD screen. This device uses a high-precision tilt sensor to calculate the device's moving position and the height difference relative to the reference plane to obtain rut test results, avoiding the impact of human misreading on test accuracy, resulting in high test accuracy and efficiency. Specifically, the housing structure uses an IP65-rated engineering plastic shell, fixed to the middle of the movable tube 22 with clips. Internal components: Controller: Based on an STM32 microcontroller, with a built-in rut depth calculation algorithm (deriving the rut profile through the integration of the tilt angle and the displacement of the measuring wheel). LCD screen: A 5-inch TFT touchscreen that displays the rut depth curve, cumulative length, and battery level in real time. Button module: Includes start / stop button, data save button, and mode switch button (supports manual / automatic sampling). Battery pack: Uses 18650 lithium battery cells (12V / 5000mAh), with a battery life of ≥8 hours and supports USB-C fast charging.

[0033] Data interface: A Bluetooth module and a Micro-USB interface are provided on the side, supporting wireless data export to mobile devices.

[0034] The tilt sensor is a Hall effect magnetic angle sensor. This sensor can be replaced with a MEMS gyroscope or a fiber optic gyroscope.

[0035] The handle 23 has several wave patterns. The wave patterns on the handle 23 are designed to prevent slippage and make it easier for the operator to grip the handle.

[0036] The working principle of this utility model is as follows: An angle sensor is integrated into the reference beam for measurement, and the reference beam is connected through two measuring wheels at the front and rear.

[0037] (2) Before the test, the sensor angle and position base point O are initialized at the flat road surface. The elevation of the starting point of the cross section is also initialized. The angle sensor angle value a is set to be positive when the reference beam is tilted downward relative to the initial horizontal surface, and negative when the reference beam is tilted upward relative to the initial horizontal surface.

[0038] (3) Obtain the moving length L1 of the sensor relative to the front point of the cross section through the measuring wheel, and obtain the tilt angle a1 of the reference beam through the angle sensor. Assume that the horizontal distance of the front point relative to the position base point O is X0, the height difference is Y0, the height difference Δh relative to the front point of the measuring cross section is L1×sin(a1), and the horizontal distance relative to the front point is S1×cos(a1). Then the horizontal distance of this position relative to the position base point O is X1=X0+S1, and the height difference is Y1=Y0-Δh.

[0039] (4) Set the automatic data acquisition distance interval L1 according to the test accuracy requirements, and iteratively calculate the position coordinates X of each point on the test section relative to the position base point according to step (3). n Y n .

[0040] (5) Use the data processing module to summarize the cross-sectional shape information of the road surface, and determine the rutting depth of the cross section through the cross section to complete the cross section rutting test.

[0041] Of course, the above embodiments are not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1.A portable rut testing device based on sensors such as inclination sensors, comprising: a detection main body (1) for detecting rut parameters; a hand lever (2) hingedly connected to the detection main body (1) for providing a pushing force to the detection main body (1); a control box (3) fixed on the hand lever (2) and electrically connected to the detection main body (1) for collecting and processing parameter information of rut detection; and a distance measuring wheel (4) for rolling on a rut surface. 2.The portable rut testing device based on sensors such as inclination sensors according to claim 1, wherein the detection main body (1) comprises a detection beam and an inclination sensor, the inclination sensor is integrally arranged in the detection beam, and the inclination sensor is electrically connected to the control box (3). 3.The portable rut testing device based on sensors such as inclination sensors according to claim 1, wherein the hand lever (2) comprises a straight lever (21), a movable tube (22), and a U-shaped seat (25), the U-shaped seat (25) is fixed on the detection main body (1), one end of the straight lever (21) is hingedly connected to the U-shaped seat (25), the other end of the straight lever (21) is insertingly and matchingly connected to the movable tube (22), the other end of the movable tube (22) is provided with a handle (23), and the control box (3) is fixed on the movable tube (22). 4.The portable rut testing device based on sensors such as inclination sensors according to claim 3, wherein the U-shaped seat (25) is provided with a locking bolt (27), and an end of the locking bolt (27) is abuttingly connected to the straight lever (21). 5.The portable rut testing device based on sensors such as inclination sensors according to claim 3, wherein the movable tube (22) is provided with a key handle bolt (24), and an end of the key handle bolt (24) is abuttingly connected to the straight lever (21). 6.The portable rut testing device based on sensors such as inclination sensors according to claim 1, wherein the control box (3) comprises a box body, the box body is provided with a controller, a liquid crystal display, and a battery pack, the box body is provided with a plurality of keys, the liquid crystal display and the keys are electrically connected to the controller, and the battery pack provides a working power supply for the controller. 7.The portable rut testing device based on sensors such as inclination sensors according to claim 2, wherein the inclination sensor is a Hall magnetic sensitive angle sensor. 8.The portable rut testing device based on sensors such as inclination sensors according to claim 3, wherein the handle (23) is provided with a plurality of wave lines. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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