Slope dangerous rock falling risk monitoring device

Abstract

The utility model discloses a slope dangerous rock falling risk monitoring device. The slope dangerous rock falling risk monitoring device comprises a target, a laser camera and a signal monitoring module. The number of the targets is multiple, the targets are all fixedly installed on the slope dangerous rock body, and the targets are provided with visual recognition areas. A plurality of laser cameras are arranged, lenses of the laser cameras are all aligned with the target and can shoot the visual recognition area, the laser cameras are all arranged on the horizontal ground, the distance between the laser cameras and the target is 20-100 m, the view overlapping range of the adjacent laser cameras is smaller than 20%, and the laser cameras are arranged on the horizontal ground. The plurality of laser cameras have the same coordinate system; and the signal monitoring module is in signal connection with the laser camera. The visual target is the basis of slope monitoring, the target is installed at the position of a slope risk source, available measuring point marks are provided for surface deformation of the slope, and the visual target has the advantage of being capable of accurately monitoring movement of dangerous rocks.

Description

Technical Field

[0001] The utility model belongs to the technical field of slope monitoring, and in particular relates to a device for monitoring the risk of dangerous rocks and falling rocks on a slope. Background Art

[0002] In a complex and ever-changing natural environment, slopes are often in a state of dynamic change due to multiple factors, including geological structure, weathering, and hydrological conditions. The potential threat of rockfall, a sudden geological disaster, should not be underestimated. Once it occurs, it not only poses a direct threat to the lives and safety of surrounding residents but can also cause significant damage to transportation routes and infrastructure, triggering a chain reaction that could impact social stability and economic development. Therefore, implementing risk monitoring for rockfall on slopes is crucial. High-precision monitoring equipment and technical means allow for comprehensive, all-weather monitoring of slopes, enabling the timely detection of seemingly minor signs that could potentially trigger major disasters. Furthermore, combined with specialized analytical software and model predictions, it is possible to more accurately assess the risk level and potential impact of rockfall, providing a strong basis for developing scientific prevention and control plans.

[0003] Existing devices for monitoring the risk of rockfall on slopes typically take photos of the rock and then compare them at different times to determine if it has fallen. However, this approach has the following drawbacks: First, the displacement of a rock before it falls is typically small, making it difficult to accurately identify it through image recognition. If the displacement reaches a level that allows accurate identification, the rock has likely already fallen, thus failing to provide effective early warning monitoring. Second, the presence of numerous obstructions on the slope makes direct monitoring of rock movement even more difficult. Utility Model Content

[0004] In response to the problems existing in the prior art, the utility model provides a device for monitoring the risk of falling dangerous rocks on slopes, which has the advantage of being able to accurately monitor the movement of dangerous rocks and solves the problems of the prior art.

[0005] The utility model is implemented as follows: a device for monitoring the risk of rockfall on a dangerous rock on a slope, comprising a plurality of targets, each fixedly mounted on the dangerous rock mass on the slope, and each having a visual identification area; a plurality of laser cameras, each with its lens aligned with the target and capable of capturing the visual identification area; each laser camera being positioned on a horizontal surface, the distance between the laser camera and the target being 20m-100m, the overlap of the fields of view of adjacent laser cameras being less than 20%, and the plurality of laser cameras sharing the same coordinate system; and a signal monitoring module connected to the laser cameras.

[0006] As a preferred embodiment of the present invention, the targets are all arranged vertically and face the same direction.

[0007] As a preferred embodiment of the present invention, the lower side of the slope is the left side, the higher side is the right side, and the other two sides of the slope are the front side and the rear side respectively; the target faces the front side, and the laser camera is arranged on the front side of the slope.

[0008] As a preferred embodiment of the present invention, at least two of the laser cameras are respectively located on the left front side and the right front side of the slope.

[0009] As a preferred embodiment of the present invention, the target is set as a double-sided target, facing the front and back sides respectively; laser cameras are provided on the front and back sides of the slope, the front laser camera is aimed at one side of the double-sided target, and the rear laser camera is aimed at the other side of the double-sided target.

[0010] As a preferred embodiment of the present invention, the visual recognition area is in the shape of a concentric frame, and the filling colors of the concentric frames are arranged alternately.

[0011] As a preferred embodiment of the present invention, the visual recognition area is concentric circles, and the filling colors of the concentric circles are arranged alternately.

[0012] As a preferred embodiment of the present invention, the horizontal distance between the laser camera and the slope is 20m-80m.

[0013] As a preferred embodiment of the present invention, the laser camera includes a first type of camera and a second type of camera, the first type of camera is used to monitor the relative positions of several targets, the number of the second type of cameras is equal to the number of targets, and the second type of cameras and the targets correspond one-to-one and are used to monitor the positions of the corresponding targets.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] This new visual target is the foundation of slope monitoring. Installed at risk sources, it provides a useful marker for measuring surface deformation. When an abnormality occurs, the visual target shifts slightly within the image domain, which can be captured by the image monitoring algorithm. By combining the monitoring range and distance of the slope, multiple laser cameras can be linked together, with one camera providing panoramic slope monitoring and the remaining cameras providing high-precision monitoring of local risk points. This allows for comprehensive monitoring of slope risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Fig. 1 This is a signal block diagram of the signal monitoring module and laser camera of the slope dangerous rockfall risk monitoring device provided by the embodiment of the utility model;

[0017] Fig. 2 Schematic diagram of a device for monitoring the risk of rockfall on a dangerous rocky slope provided by an embodiment of the present utility model;

[0018] Fig. 3 Figure is the structural schematic diagram of the target and visual identification area provided by the embodiment of the utility model.

[0019] In the figure: 1, target; 2, visual identification area; 3, laser camera; 4, signal monitoring module. DETAILED DESCRIPTION

[0020] In order to further understand the utility model content, characteristics and efficacy of the utility model, the following examples are cited, and the detailed description is as follows in conjunction with the drawings.

[0021] The structure of the utility model is described in detail below in conjunction with the drawings.

[0022] Referring to Figs. 1-3 The utility model embodiment provides a kind of slope dangerous rock falling rock risk monitoring device, including target 1, laser camera 3 and signal monitoring module 4.The target 1 is equipped with several, and the target 1 is all fixedly installed on slope dangerous rock mass, and visual identification area 2 is equipped on the target 1;The lens of the laser camera 3 is all aligned with target 1, and visual identification area 2 can be photographed, and the laser camera 3 is all set on horizontal ground, and the distance between the laser camera 3 and target 1 is all 20m-100m, the visual field overlapping range of adjacent laser camera 3 is less than 20%, and several laser camera 3 have same coordinate system;The signal monitoring module 4 is signal connected to laser camera 3.

[0023] The slope dangerous rock falling rock risk monitoring device is monitored by target 1 fixed on slope dangerous rock mass and laser camera 3 set on horizontal ground.Visual identification area 2 is equipped on target 1, and the lens of laser camera 3 is aligned with these target 1, and visual identification area 2 of target 1 can be photographed.By pre-set coordinate system and internal parameter of laser camera 3, system can obtain the position information of target 1 in image domain in real time.When abnormal situation occurs in slope, such as dangerous rock mass moves or rockfall, the position of target 1 in image will change, and this change is captured by laser camera 3 and transmitted to signal monitoring module 4 for processing.

[0024] The device has the beneficial effects that real-time monitoring and early warning of slope dangerous rock falling rock risk can be realized.Through the linkage of multiple laser cameras 3, device can cover the panorama and local risk points of slope simultaneously, improve the accuracy and comprehensiveness of monitoring.For example, after installing the device on the slope of a mountainous area highway, laser camera 3 can continuously monitor the change of slope dangerous rock mass.Once dangerous rock mass has slight displacement or rockfall sign, the position change of target 1 in image will be quickly captured, and early warning signal is sent to relevant personnel through signal monitoring module 4.In this way, relevant departments can take measures in time to avoid dangerous rock falling rock to cause threat to highway and driving safety.

[0025] For example, the targets 1 are all vertically positioned and oriented in the same direction. This arrangement ensures that the laser camera 3 can capture the visual recognition area 2 of the target 1 when photographing from different angles. This arrangement helps improve the accuracy of the laser camera 3's detection of dangerous rock mass movement, as the consistent orientation of the targets 1 helps reduce errors caused by angular differences. The vertical positioning of the targets 1, oriented in the same direction, ensures the stability and accuracy of the monitoring system, facilitating the laser camera 3's rapid identification and location of changes in dangerous rock mass.

[0026] For example, the lower side of the slope is the left side, the higher side is the right side, and the other two sides of the slope are the front and back sides, respectively. The target 1 faces the front, and the laser camera 3 is positioned on the front side of the slope. This arrangement, with the target 1 facing the front and the laser camera 3 positioned on the front, eliminates the line of sight between the laser camera 3 and the target 1 from other parts of the slope, thereby improving monitoring accuracy. This layout reduces blind spots, ensuring that the laser camera 3 can capture subtle changes in the dangerous rock mass in real time, and enhancing the timeliness of early warnings.

[0027] For example, at least two laser cameras 3 are positioned on the left and right front sides of the slope, respectively. This arrangement, with the laser cameras 3 positioned on the left and right front sides of the slope, enables comprehensive monitoring of the slope. The two cameras capture images from different angles, enabling more accurate capture of dangerous rock movement and rockfall. This layout increases monitoring coverage, reduces blind spots, and improves comprehensiveness and accuracy.

[0028] Preferably, the target 1 is set as a double-sided target, facing the front and back sides respectively; laser cameras 3 are provided on the front and back sides of the slope, the front laser camera 3 is aimed at one side of the double-sided target 1, and the rear laser camera 3 is aimed at the other side of the double-sided target 1.

[0029] The double-sided target 1 design allows laser cameras 3 to monitor the dangerous rock mass from two directions simultaneously. The front and rear laser cameras 3 capture both sides of the double-sided target 1, respectively, achieving comprehensive monitoring of the dangerous rock mass. This layout increases monitoring reliability, ensuring accurate detection of changes in the dangerous rock mass even in complex environments, and improving the accuracy of early warnings.

[0030] In one embodiment, the visual recognition area 2 is a concentric frame-shaped area, and the fill colors of the concentric frames are arranged in alternating patterns. The concentric frame-shaped visual recognition area 2 design and the alternating fill colors (e.g., black and white) help the laser camera 3 more accurately identify and locate the target 1, thereby improving monitoring accuracy.

[0031] In another embodiment, the visual recognition area 2 is concentrically circular, with alternating fill colors. This concentric circular visual recognition area 2 design, along with alternating fill colors (e.g., black and white), also helps the laser camera 3 more accurately identify and locate the target 1. This design also improves the target's recognizability, reduces environmental interference, and enhances the stability and accuracy of the monitoring system.

[0032] Furthermore, the horizontal distance between the laser camera 3 and the slope is 20m-80m.

[0033] This setup allows laser camera 3 to be placed within a horizontal distance of 20m-80m, ensuring a clear line of sight between laser camera 3 and target 1, avoiding blind spots caused by being too close or too far away. This setup optimizes monitoring effectiveness, ensuring that laser camera 3 can accurately capture changes in the dangerous rock mass while avoiding monitoring errors caused by being too close or too far away.

[0034] The laser camera 3 includes a first type of camera and a second type of camera. The first type of camera is used to monitor the relative positions of several targets 1. The number of the second type of cameras is equal to the number of the targets 1, and the second type of cameras and the targets 1 correspond one to one and are used to monitor the positions of the corresponding targets 1.

[0035] The working principle of this utility model:

[0036] During use, the device monitors the risk of rockfall on a dangerous slope using targets 1 fixed to the dangerous rock mass and laser cameras 3 mounted on horizontal ground. Targets 1 are provided with visual recognition areas 2, and the laser camera 3's lens is aimed at these targets 1, capturing their visual recognition areas 2. Using a pre-defined coordinate system and the internal parameters of the laser camera 3, the system can capture the position of targets 1 in the image domain in real time. When an abnormality occurs on the slope, such as movement of the dangerous rock mass or rockfall, the position of targets 1 in the image changes. This change is captured by the laser camera 3 and transmitted to the signal monitoring module 4 for processing.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring the risk of rockfall on a slope, characterized in that: include: Targets (1), wherein a plurality of targets (1) are provided, and each of the targets (1) is fixedly mounted on a dangerous rock mass on a slope, and a visual identification area (2) is provided on the target (1); Laser cameras (3), wherein a plurality of laser cameras (3) are provided, lenses of the laser cameras (3) are all aimed at the target (1) and can capture the visual recognition area (2), the laser cameras (3) are all set on a horizontal ground, the distance between the laser cameras (3) and the target (1) is 20m-100m, the overlapping range of the fields of view of adjacent laser cameras (3) is less than 20%, and the plurality of laser cameras (3) have the same coordinate system; A signal monitoring module (4) is connected to the laser camera (3) via a signal.

2. The device for monitoring the risk of rockfall on a slope according to claim 1, characterized in that: The targets (1) are all arranged vertically, and the targets (1) face the same direction.

3. The device for monitoring the risk of rockfall on a dangerous slope according to claim 2, wherein: The lower side of the slope is the left side, the higher side is the right side, and the other two sides of the slope are the front side and the back side respectively; The target (1) faces the front side, and the laser camera (3) is arranged on the front side of the slope.

4. The device for monitoring the risk of rockfall on a dangerous slope according to claim 1, wherein: At least two of the laser cameras (3) are respectively located on the left front side and the right front side of the slope.

5. The device for monitoring the risk of rockfall on a dangerous slope according to claim 1, wherein: The target (1) is set as a double-sided target, facing the front and rear sides respectively; laser cameras (3) are provided on the front and rear sides of the slope, the front laser camera (3) is aimed at one side of the double-sided target (1), and the rear laser camera (3) is aimed at the other side of the double-sided target (1).

6. The device for monitoring the risk of rockfall on a dangerous slope according to claim 1, characterized in that: The visual recognition area (2) is in the shape of a concentric frame, and the filling colors of the concentric frames are arranged alternately.

7. The device for monitoring the risk of rockfall on a dangerous slope according to claim 1, characterized in that: The visual recognition area (2) is concentric circles, and the filling colors of the concentric circles are arranged alternately.

8. The device for monitoring the risk of rockfall on a dangerous slope according to claim 1, characterized in that: The horizontal distance between the laser camera (3) and the slope is 20m-80m.

9. The device for monitoring the risk of rockfall on a dangerous slope according to claim 1, wherein: The laser camera (3) includes a first type of camera and a second type of camera, wherein the first type of camera is used to monitor the relative positions of a plurality of the targets (1), the number of the second type of cameras is equal to the number of the targets (1), and the second type of cameras and the targets (1) are in one-to-one correspondence and are used to monitor the positions of the corresponding targets (1).

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