Roadbed quality settlement monitoring device

Abstract

The utility model discloses a highway roadbed quality settlement monitoring device, and its component members include camera, laser source and settlement terminal, characterized in that, laser source sets up on the reference point, and laser source sends a bundle of collimated laser through the point laser of sending unit and projects on the camera of remote device, and the monitoring device still includes horizontal angle regulator that adjusts the horizontal angle position of above-mentioned camera and lifting assembly, the horizontal regulator includes servo motor and controller, and the lifting assembly includes first power component, screw rod, movable block and lifting plate, and first power component drives screw rod to rotate along the periphery of itself, that is, through horizontal regulator and lifting assembly, the horizontal angle and height of camera are adjusted, so as to center the light spot of laser source projection on the target surface in camera.

Description

Technical Field

[0001] This utility model relates to the field of roadbed settlement observation technology, and more specifically to a highway roadbed mass settlement monitoring device. Background Technology

[0002] To monitor roadbed settlement, settlement monitoring devices are installed and applied during road construction. Currently, laser-assisted monitoring is used in some technologies. The core of this approach lies in utilizing laser collimation and image detection technology to convert roadbed settlement into a light spot displacement signal, and then achieving millimeter-level monitoring through high-precision algorithms. For example, Chinese patent CN101373132A discloses a device and method for remotely measuring roadbed settlement using laser technology, belonging to the field of optical measurement and geometric position measurement technology. The device of this invention includes a settlement monitoring pile consisting of a base plate and a measuring rod, a point light source, a fixed observation pile, a laser measurement unit, a measurement signal transmission unit, a central processing unit, and a power module. The method of this invention includes burying a settlement monitoring pile at the point to be measured, placing a point light source on it so that it settles synchronously with the roadbed at the point to be measured; the point light source is imaged through the lens of the laser measurement unit, with the image point A′ appearing on a photodetector; the displacement of the point light source object point, i.e., the settlement of the foundation at the point to be measured, is calculated from the displacement of the image point.

[0003] Currently, for this type of monitoring device, during installation, the device is rigidly connected to the roadbed. Therefore, when adjusting the centering of the target light spot, the entire device needs to be disassembled for adjustment, which is quite troublesome. Utility Model Content

[0004] The purpose of this invention is to provide a highway subgrade quality settlement monitoring device that facilitates camera debugging and adjustment during implementation, avoiding the need to disassemble the entire device for debugging. Specifically, the horizontal angle and height of the camera are adjusted via a leveling device and a lifting assembly to facilitate centering the laser source projection onto the target surface inside the camera.

[0005] This utility model is implemented as follows: a highway subgrade quality settlement monitoring device, the components of which include a camera, a laser source and a settlement terminal; characterized in that: the laser source is set at a reference point, and the laser source emits a collimated laser beam through the point laser of the transmitting unit and projects it onto the camera of the device at a distance.

[0006] The monitoring device also includes a level adjuster for adjusting the horizontal angle position of the camera and a lifting assembly; the level adjuster includes a servo motor and a controller, and the lifting assembly includes a first power component, a lead screw, a movable block and a lifting plate, wherein the first power component drives the lead screw to rotate around its own circumference.

[0007] According to the highway subgrade quality settlement monitoring device of this utility model, the movable block is sleeved on the outside of the lead screw, and the side wall of the movable block connected to the lead screw is provided with an internal thread that matches the external thread of the lead screw; the lifting plate is connected to the movable block through a connecting rod; the lifting assembly is wrapped with a waterproof shell, and the fixing frame in the lifting assembly is fixedly installed in the waterproof shell.

[0008] According to the highway subgrade quality settlement monitoring device of this utility model, the first power component, the lead screw, the movable block and the lifting plate are all installed on the fixed frame. The lead screw is rotatably installed on the fixed frame. In this embodiment, the first power component is selected as a servo motor, which drives the lead screw to rotate through the belt pulley transmission mechanism. The lifting plate is set on the upper surface of the outer shell and is connected to the movable block through the connecting rod penetrating the top plate of the outer shell.

[0009] According to the highway subgrade mass settlement monitoring device of this utility model, the feature is that: the first power component drives the lead screw to rotate around its own circumference, thereby driving the movable block to slide vertically, and the lifting plate slides vertically accordingly, thereby realizing the height adjustment of the camera.

[0010] The present invention has the following advantages: The present invention provides a highway subgrade quality settlement monitoring device, which adjusts the horizontal angle and height of the camera through a level adjuster and a lifting component, so as to center the light spot projected by the laser source onto the target surface inside the camera. Attached Figure Description

[0011] Figure 1 This is a schematic diagram illustrating an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the camera's structure;

[0013] Figure 3 yes Figure 2 The diagram shows the internal structure of the camera.

[0014] Figure 4 This is a schematic diagram of the lifting assembly in the camera shown.

[0015] Figure 5 yes Figure 4 Side view of the lifting component;

[0016] Figure 6 This is a schematic diagram of the settlement terminal implementation. Detailed Implementation

[0017] Reference will now be made specifically to the representative embodiments shown in the accompanying drawings. It should be understood that the following description is not intended to limit the embodiments to a single preferred embodiment. Rather, it is intended to cover alternative forms, modifications, and equivalents that may be included within the substance and scope of the embodiments defined by the appended claims.

[0018] This utility model discloses a highway subgrade quality settlement monitoring device, which is implemented as follows: Figure 1 As shown, its components include a camera 100 (configured to receive a reference point laser source to form a light spot on its built-in target surface), a laser source 200, and a settling terminal 300. Because the device is rigidly connected to the roadbed during installation, the entire device needs to be disassembled for adjustment during target surface light spot alignment to avoid difficulties in camera adjustment, making the operation quite cumbersome. Therefore, as... Figures 2-5 As shown, based on the above structure, this monitoring device also includes a level adjuster 400 for adjusting the horizontal angle position of the camera 100. The level adjuster 400 includes a servo motor and a controller. The controller calculates the rotational angular velocity and time of the servo motor, thereby controlling the rotation angle of the camera.

[0019] Meanwhile, the monitoring device also includes a lifting assembly 500. The lifting assembly 500 includes a first power component 503, a lead screw 504, a movable block 505, and a lifting plate 502. The first power component 503 drives the lead screw 504 to rotate circumferentially. The movable block 505 is sleeved on the outside of the lead screw, and the side wall of the movable block connected to the lead screw has an internal thread that matches the external thread of the lead screw. The lifting plate 502 is connected to the movable block 505 through a connecting rod. The lifting assembly 500 is encased in a waterproof housing 600. The fixed frame 501 of the lifting assembly 500 is fixedly installed inside the waterproof housing 600. The first power component 503, lead screw 504, movable block 505 and lifting plate 502 mentioned above are all installed on the fixed frame 501. The lead screw 504 is rotatably installed on the fixed frame 501. In this embodiment, the first power component 503 is a servo motor, which drives the lead screw 504 to rotate through a belt pulley transmission mechanism. The lifting plate 502 is located on the upper surface of the housing and is connected to the movable block 505 through a connecting rod that penetrates the top plate of the housing 600.

[0020] The first power component 503 drives the lead screw to rotate circumferentially, which in turn drives the movable block to slide vertically, and the lifting plate slides vertically accordingly, thereby achieving camera height adjustment. Therefore, the horizontal angle and height of the camera are adjusted by the level adjuster and the lifting assembly to facilitate the centering of the laser source projection spot on the target surface inside the camera.

[0021] like Figure 6As shown, the settlement terminal includes a monitoring terminal 340, an auxiliary device 310, an embedded system 321, and a communication module 330. The auxiliary device 310 includes a battery 311 and a tilt sensor 312; the embedded system 321 includes a spot image acquisition module 322 and a data storage module. In this embodiment, the communication module uses a GPRS system. To further illustrate the detection principle and process of this application, the implementation principle of this application is described in detail below: A laser source 200 is set at a reference point, and the device is placed at a monitoring point. The laser source 200 emits a collimated laser beam through the point laser of the transmitting unit and projects it onto the projection target surface of the camera 100 of the distant device to form an approximately circular spot. When the position of the laser at the transmitting end changes, the laser spot on the projection target surface at the receiving end will also produce the same displacement. After detecting the center position coordinates of the spot using a centroid fitting method positioning algorithm, the change in laser beam displacement is obtained through differential calculation. The laser source and device are rigidly connected to the roadbed. When the position of the laser source changes, the center of the light spot on the camera projection target will also shift. The light spot image acquisition module acquires two images before and after the change of the light spot formed by the laser beam on the monitoring target. Then, the coordinates of the light spot image are located in the monitoring terminal 340 by transplanting a high-precision light spot center positioning algorithm. After performing differential calculation on the coordinate values ​​of the light spot center of two adjacent images, the horizontal offset and vertical settlement of the roadbed settlement, as well as the relative settlement of two adjacent monitoring areas, can be obtained. The camera of each settlement monitoring terminal is aligned with the laser of the settlement monitoring terminal in front, and the relative settlement value of the monitoring point is obtained at regular intervals. Finally, the settlement deformation information in the monitoring terminal is completed.

[0022] The data storage module 321 can store the above-mentioned spot image data and the data calculated by the monitoring terminal.

[0023] Battery 311 provides power for the operation of the device.

[0024] The tilt sensor 312 detects changes in the tilt angle of the monitoring device, thereby assisting in the analysis of roadbed settlement patterns.

[0025] When staff in the control room need to access or download relevant data images, the communication module 330 receives the instruction and transmits it to the monitoring terminal. The monitoring terminal then retrieves the data corresponding to the instruction from the data storage module and transmits it to the communication module 330, which then uploads the data to the monitoring room.

[0026] It should be noted that the main purpose of this application is to adjust the horizontal angle and height of the camera through a level adjuster and a lifting assembly, so as to center the light spot projected by the laser source onto the target surface inside the camera.

Claims

1. A highway subgrade settlement monitoring device, comprising a camera (100), a laser source (200), and a settlement terminal (300); characterized in that... ； The laser source (200) is set at the reference point, and the laser source (200) emits a collimated laser beam through the point laser of the transmitting unit and projects it onto the camera (100) of the distant device. The monitoring device also includes a level adjuster (400) for adjusting the horizontal angle position of the camera (100) and a lifting assembly (500); the level adjuster (400) includes a servo motor and a controller, and the lifting assembly (500) includes a first power component (503), a lead screw (504), a movable block (505) and a lifting plate (502), wherein the first power component (503) drives the lead screw (504) to rotate around its own circumference.

2. The highway subgrade mass settlement monitoring device according to claim 1, characterized in that; The movable block (505) is sleeved on the outside of the lead screw, and the side wall connecting the movable block and the lead screw is provided with an internal thread that matches the external thread of the lead screw. The lifting plate (502) is connected to the movable block (505) through a connecting rod. The lifting assembly (500) is wrapped with a waterproof shell (600), and the fixing frame (501) in the lifting assembly (500) is fixedly installed inside the waterproof shell (600).

3. The highway subgrade mass settlement monitoring device according to claim 1, characterized in that; The first power unit (503), lead screw (504), movable block (505), and lifting plate (502) are all mounted on the fixed frame (501). The lead screw (504) is rotatably mounted on the fixed frame (501). The first power unit (503) selects a servo motor and drives the lead screw (504) to rotate through a belt pulley transmission mechanism. The lifting plate (502) is set on the upper surface of the outer shell and is connected to the movable block (505) through a connecting rod that passes through the top plate of the outer shell (600).

4. The highway subgrade mass settlement monitoring device according to claim 1, characterized in that; The first power component (503) drives the lead screw to rotate around its own circumference, which in turn drives the movable block to slide vertically, and the lifting plate slides vertically accordingly, thereby realizing the height adjustment of the camera.

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