Slope safety lightweight monitoring system

Abstract

The invention provides a slope safety lightweight monitoring system which comprises a video displacement acquisition system, a video monitoring system, a rainfall acquisition system, a solar power supply system, an alarm module and a data monitoring center platform. The video displacement acquisition system comprises a passive target, a multi-point image displacement measuring instrument and an infrared light supplementing lamp; the passive target and the alarm module are installed on the slope. The multi-point image displacement measuring instrument and the side slope are arranged on the two opposite sides of the road respectively, and the multi-point image displacement measuring instrument is located opposite to the side slope and faces the passive target; the video monitoring system, the rainfall acquisition system and the solar power supply system are installed on the side where the multi-point image displacement measuring instrument is located. The system calculates and analyzes the displacement speeds of the measuring points in the Y direction and the Z direction by measuring the displacement data of the measuring points on the surface of the side slope, carries out early warning based on the analyzed displacement speeds, gives an alarm in time, reminds passing vehicles and reminds related personnel to carry out timely treatment, and further ensures the safety of the surrounding environment of the side slope.

Description

Technical Field

[0001] The invention relates to the technical field of slope safety status monitoring and evaluation, and in particular to a slope safety lightweight monitoring system. Background Art

[0002] Slopes are common and threatening natural terrains in geological disasters. Due to the influence of their own geology and external weather, slopes are prone to collapse, landslides, and spalling. Therefore, it is very important to monitor the safety of slopes. Many technical solutions have been formed around slope safety monitoring, and they have been well promoted and applied. However, due to the complexity of existing technical solutions and the large amount of equipment required, the construction cost of a single slope ranges from more than 200,000 to nearly one million. Due to cost constraints, only some slopes can be monitored in real time, and full coverage cannot be achieved. It has been found in practice that many slopes where accidents have occurred have no safety monitoring system installed. Therefore, a lightweight and economical technical solution is urgently needed to monitor more slopes for safety.

[0003] At present, for the monitoring of slopes, the Chinese invention patent application with publication number CN117288920A provides a slope protection monitoring system, which sets stress, humidity and other monitoring sensors on the slope, and then transmits the data to the processing terminal through a data transmission device. However, this method requires the laying of a mesh sensor connection line, which is complicated to construct and costly, and requires the data results to be processed and analyzed, which is not intuitive enough. There is also a Chinese utility model patent with announcement number CN218380969U that provides a slope surface settlement monitoring device, which measures the relative settlement of the static level at the reference point through a machine vision target to obtain the absolute settlement of the static level at the measuring point, but this method has high equipment costs, and the required static level is complex to construct and has high subsequent maintenance costs, making it difficult to promote; the Chinese invention patent application with application number CN202310935705.1 provides a stereoscopic target and a slope monitoring method based on the stereoscopic target, which obtains the position change of each stereoscopic target according to the image taken from the slope to obtain the slope displacement, but this method requires a lot of wiring, the construction is relatively cumbersome, and the construction cost increases; the Chinese utility model patent with application number CN202221497385.3 proposes a slope monitoring device, which monitors the settlement of the slope by monitoring whether multiple infrared targets have settled through a viewing angle measuring instrument, but it is necessary to set up multiple inclinometers in the slope, which is complex to construct and costly. The above are all situations that people in the technical field do not want to see again and hope to improve. Therefore, it is very necessary to propose a low-cost, lightweight slope safety monitoring system that is simpler to construct and more intuitive to monitor while ensuring monitoring accuracy. Summary of the invention

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A slope safety lightweight monitoring system, including a video displacement acquisition system, a video monitoring system, a rainfall acquisition system, a solar power supply system, an alarm module and a data monitoring center platform;

[0006] The video displacement acquisition system includes a passive target, a multi-point image displacement measuring instrument and an infrared fill light; the passive target is installed on the slope to provide a reference for whether the slope is displaced; the multi-point image displacement measuring instrument and the slope are arranged on opposite sides of the road, the multi-point image displacement measuring instrument is located opposite the slope and faces the passive target, and is used to identify the displacement of the passive target, and transmit the displacement identification result to the data monitoring center platform by connecting with the data monitoring center platform; the infrared fill light is arranged on the same side as the multi-point image displacement measuring instrument, and faces the passive target, and is used to fill light for the passive target at night;

[0007] The video monitoring system is installed on the side where the multi-point image displacement measuring instrument is located, facing the slope, and is used to collect the on-site video of the slope in real time. The collected video information is transmitted to the data monitoring center platform connected thereto;

[0008] The rainfall collection system is installed on the side where the multi-point image displacement measuring instrument is located, and is used to monitor the rainfall conditions at the slope in real time, and transmit the collected rainfall information to the data monitoring center platform connected thereto;

[0009] The solar power supply system is installed next to the multi-point image displacement measuring instrument, and is respectively connected to the multi-point image displacement measuring instrument, infrared fill light, video monitoring system and rainfall collection system to provide power support for each power module;

[0010] The alarm module is installed on the slope and is connected to the data monitoring center platform. It is used to send out an early warning signal to remind passing vehicles when the data monitoring center platform determines that the slope is abnormal.

[0011] Furthermore, when the passive target is installed on the slope, if it is located in an area with stable soil, a pole is erected by digging a pit and pouring a cement foundation, wherein the pit depth of the cement foundation is greater than 50 cm and the width is greater than 30 cm; if it is located in an area with soft soil, the passive target is fixed by piling.

[0012] Furthermore, the multi-point image displacement measuring instrument adopts a measuring instrument with a measuring distance of 0-200 meters and a frame rate greater than 5 Hz.

[0013] Furthermore, the video displacement acquisition system also includes an electrical control box and a 4G router. A hard disk recorder, a storage hard disk and a 4G router are installed in the electrical control box. The multi-point image displacement measuring instrument is connected to the storage hard disk and the 4G router. It transfers the displacement identification result to the storage hard disk for storage, and wirelessly transmits it to the data monitoring center platform through the 4G router.

[0014] Furthermore, the rainfall collection system adopts a high-precision optical rainfall sensor.

[0015] Furthermore, the alarm module is an early warning horn.

[0016] Furthermore, the data monitoring center platform issues early warning information based on the collected information, and its early warning method is:

[0017] 1) If the displacement speed of the slope in the Y direction pointing outward or in the Z direction exceeds 0.2 mm / h within one hour, the data monitoring center platform prompts the alarm module to send out a warning signal to alert vehicles passing by on the road where the slope is located;

[0018] 2) If the displacement of the slope in the Y direction pointing outward or in the Z direction exceeds 28 mm / week within a week, the data monitoring center platform will send an early warning message to the remote user to prompt the relevant departments to send special personnel to the slope for on-site inspection;

[0019] 3) If the displacement of the slope in the Y direction pointing outward or in the Z direction exceeds 96 mm / month within a month, the data monitoring center platform will send an early warning message to the remote user to prompt the relevant departments to send special personnel to the slope for on-site inspection, and then organize an expert meeting for experts to discuss solutions to the slope management;

[0020] The Y direction of the slope refers to a direction perpendicular to the slope surface and pointing outward from the slope, and the Z direction refers to a vertically upward direction.

[0021] Furthermore, with respect to item 1) of the early warning method, when the data monitoring center displays that the displacement speed is greater than the emergency warning value based on the collected information, the data monitoring center adjusts the displacement monitoring speed from monitoring the displacement speed within one hour to monitoring the displacement monitoring speed within five minutes.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention discloses a lightweight slope safety monitoring system, which measures the displacement data of measuring points on the surface of the slope, thereby calculating and analyzing the displacement speed of the measuring points in the Y and Z directions, and issues an early warning based on the analyzed displacement speed, so that an alarm is issued in time after the displacement speed reaches the early warning value, thereby reminding passing vehicles and relevant personnel to take timely measures, thereby ensuring the safety of the environment around the slope.

[0024] 2. Compared with the previous slope monitoring devices, the present invention can accurately monitor the displacement of the slope without affecting the roads near the slope, thereby improving the accuracy and safety of slope monitoring. At the same time, the cost of the monitoring system is lower, and more slopes can be monitored under the same cost conditions, thus achieving lightweight monitoring.

[0025] 3. The present invention can be applied to a variety of slope environments, is easy to construct, easy to operate, has lower cost, and has high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the arrangement diagram of each module of the present invention at the slope.

[0027] Figure 2 Schematic diagram of the passive target of the present invention.

[0028] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0029] See also Figure 1 to Figure 2 In a preferred embodiment of the present invention, a slope safety lightweight monitoring system includes a video displacement acquisition system, a video monitoring system, a rainfall acquisition system, a solar power supply system, an alarm module and a data monitoring center platform.

[0030] The video displacement acquisition system comprises a passive target, a multi-point image displacement measuring instrument and an infrared fill light.

[0031] The passive target is installed on the slope to provide a reference for whether the slope is displaced. It does not require power supply or wiring, can be installed once, and can be used for a long time. In actual installation, if the passive target is located in a stable soil area of ​​the slope, a pole is erected by digging a pit and pouring a cement foundation, wherein the pit depth of the cement foundation is greater than 50 cm and the width is greater than 30 cm; if the passive target is located in a soft soil area, the passive target is fixed by piling.

[0032] The multi-point image displacement measuring instrument and the slope are arranged on opposite sides of the road. The multi-point image displacement measuring instrument is located opposite the slope and faces the passive target. It is used to identify the displacement of the passive target and transmit the displacement identification result to the data monitoring center platform by connecting with the data monitoring center platform, so that the staff of the data monitoring center platform can remotely monitor the slope condition. In this embodiment, the multi-point image displacement measuring instrument adopts a measuring instrument with a measuring distance of 0-200 meters and a frame rate greater than 5Hz, so as to accurately monitor the displacement of the target with an accuracy of 1mm, thereby ensuring the accuracy of the measurement. In this embodiment, the video displacement acquisition system also includes an electrical control box and a 4G router. A hard disk recorder, a storage hard disk and a 4G router are installed in the electrical control box. The multi-point image displacement measuring instrument is connected to the storage hard disk and the 4G router. It transmits the displacement identification result to the storage hard disk for storage, and transmits it to the data monitoring center platform wirelessly through the 4G router. The electric control box can switch, protect and monitor the DVR, storage hard disk and 4G router, reducing the impact of external factors such as weather and environment on the equipment and extending the service life of the equipment. The 4G router can transmit the collected data results to the data monitoring center platform. Its wireless transmission method avoids network wiring, simplifies the construction process, improves construction efficiency and reduces costs.

[0033] The infrared fill light and the multi-point image displacement measuring instrument are arranged on the same side, facing the passive target, and are used to fill light for the passive target at night, thus ensuring the endurance of the monitoring system. At the same time, the infrared light source is invisible to the naked eye and will not affect passing vehicles and pedestrians, so safety is guaranteed.

[0034] The video monitoring system is installed on the side where the multi-point image displacement measuring instrument is located, facing the slope, and is used to collect real-time on-site video of the slope. The collected video information is transmitted to the data monitoring center platform connected to it. In this embodiment, the video monitoring system uses a 6-megapixel gun camera. Furthermore, in order to ensure the reliability and stability of the monitoring system, it is necessary to cast a cement pier on site as the base of the camera, and the cement pier requires a solid foundation.

[0035] The rainfall collection system is installed on the side where the multi-point image displacement measuring instrument is located. It is used to monitor the rainfall conditions at the slope in real time and transmit the collected rainfall information to the data monitoring center platform connected to it. In this way, by continuously recording and analyzing rainfall data, the intensity and duration of rainfall can be judged, and the impact of slope changes on surface displacement data collected by the multi-point image displacement measuring instrument can be comprehensively evaluated. In this embodiment, the rainfall collection system uses a high-precision optical rainfall sensor, which has high rain sensitivity and high accuracy. The instrument is powered by a 12VDC power supply, is small in size, and is easy to install. It has a high degree of intelligence and uses the RS485 bus for data collection and transmission, which can realize real-time online monitoring of rainfall changes.

[0036] The solar power supply system is installed next to the multi-point image displacement measuring instrument. It is respectively connected to the multi-point image displacement measuring instrument, infrared fill light, video monitoring system and rainfall collection system to provide power support for each power module. Specifically, a 400w photovoltaic panel is selected for charging, which is convenient and environmentally friendly while also ensuring the endurance of the monitoring system.

[0037] The alarm module is installed on the slope and connected to the data monitoring center platform, and is used to send out an early warning signal to alert passing vehicles when the data monitoring center platform determines that the slope is abnormal. Preferably, the alarm module is an early warning horn.

[0038] In the present invention, the data monitoring center platform issues early warning information based on the collected information, and its early warning method is:

[0039] 1) If the displacement speed of the slope in the Y direction pointing outward or in the Z direction exceeds 0.2 mm / h within one hour, the data monitoring center platform prompts the alarm module to send out a warning signal to alert vehicles passing by on the road where the slope is located;

[0040] 2) If the displacement of the slope in the Y direction pointing outward or in the Z direction exceeds 28 mm / week within a week, the data monitoring center platform will send an early warning message to the remote user to prompt the relevant departments to send special personnel to the slope for on-site inspection;

[0041] 3) If the displacement of the slope in the Y direction pointing outward or in the Z direction exceeds 96 mm / month within a month, the data monitoring center platform will send an early warning message to the remote user to prompt the relevant departments to send special personnel to the slope for on-site inspection, and then organize an expert meeting for experts to discuss solutions to the slope management;

[0042] The Y direction of the slope refers to a direction perpendicular to the slope surface and pointing outward from the slope, and the Z direction refers to a vertically upward direction.

[0043] That is, the present invention adopts a method of monitoring the displacement direction of the surface measuring point (the positive direction of the horizontal displacement Y is perpendicular to the vertical surface where the slope is located and points to the free surface, the positive direction of the horizontal displacement X is the positive direction of the horizontal displacement Y rotated 90° counterclockwise, and the vertical displacement Z is directly above and vertically upward) to monitor the slope. Compared with monitoring the deep horizontal displacement direction (a positive displacement value represents vertical movement outward from the slope, and a negative displacement value represents vertical movement into the slope) and the anchor stress monitoring direction (a positive monitoring value represents a decrease in anchor stress, and a negative monitoring value represents an increase in anchor stress), monitoring the displacement direction of the surface measuring point is simpler, more convenient and easier to implement.

[0044] Furthermore, for item 1) of the early warning method, when the data monitoring center shows that the displacement speed is greater than the emergency warning value based on the collected information, the data monitoring center adjusts the displacement monitoring speed from monitoring within one hour to monitoring within five minutes. That is, when encountering an emergency (such as heavy rain, monitoring of rapid increase in deformation or landslides), the data monitoring center can remotely adjust the measurement to once every 5 minutes.

[0045] Finally, it is further explained that the electric control box, multi-point image displacement measuring instrument and infrared fill light, solar power supply system and video monitoring system of the video displacement acquisition system are preferably integrated into an integrated device for centralized installation, which reduces the construction area and the usable area, facilitates the construction and reduces the cost. After the multi-point image displacement measuring instrument in the integrated device measures the displacement of the passive target, the displacement and displacement rate in the Y and Z directions can be calculated, and then the data can be wirelessly transmitted to the data monitoring center platform through a 4G router. The monitoring process is quick and easy, and the monitoring results are more intuitive.

[0046] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A slope safety lightweight monitoring system, characterized by: Including video displacement acquisition system, video monitoring system, rainfall collection system, solar power supply system, alarm module and data monitoring center platform; The video displacement acquisition system includes a passive target, a multi-point image displacement measuring instrument and an infrared fill light; the passive target is installed on the slope to provide a reference for whether the slope is displaced; the multi-point image displacement measuring instrument and the slope are arranged on opposite sides of the road, the multi-point image displacement measuring instrument is located opposite the slope and faces the passive target, and is used to identify the displacement of the passive target, and transmit the displacement identification result to the data monitoring center platform by connecting with the data monitoring center platform; the infrared fill light is arranged on the same side as the multi-point image displacement measuring instrument, and faces the passive target, and is used to fill light for the passive target at night; The video monitoring system is installed on the side where the multi-point image displacement measuring instrument is located, facing the slope, and is used to collect the on-site video of the slope in real time. The collected video information is transmitted to the data monitoring center platform connected thereto; The rainfall collection system is installed on the side where the multi-point image displacement measuring instrument is located, and is used to monitor the rainfall conditions at the slope in real time, and transmit the collected rainfall information to the data monitoring center platform connected thereto; The solar power supply system is installed next to the multi-point image displacement measuring instrument, and is respectively connected to the multi-point image displacement measuring instrument, infrared fill light, video monitoring system and rainfall collection system to provide power support for each power module; The alarm module is installed on the slope and is connected to the data monitoring center platform. It is used to send out an early warning signal to remind passing vehicles when the data monitoring center platform determines that the slope is abnormal.

2. A slope safety lightweight monitoring system as claimed in claim 1, characterized in that: When the passive target is installed on the slope, if it is located in a stable soil area of ​​the slope, a pole is erected by digging a hole and pouring a cement foundation, wherein the pit depth of the cement foundation is greater than 50 cm and the width is greater than 30 cm; if it is located in a soft soil area, the passive target is fixed by piling.

3. A slope safety lightweight monitoring system as claimed in claim 1, characterized in that: The multi-point image displacement measuring instrument adopts a measuring instrument with a measuring distance of 0-200 meters and a frame rate greater than 5 Hz.

4. A slope safety lightweight monitoring system as claimed in claim 1, characterized in that: The video displacement acquisition system also includes an electrical control box and a 4G router. A hard disk recorder, a storage hard disk and a 4G router are installed in the electrical control box. The multi-point image displacement measuring instrument is connected to the storage hard disk and the 4G router. It transfers the displacement identification result to the storage hard disk for storage, and wirelessly transmits it to the data monitoring center platform through the 4G router.

5. A slope safety lightweight monitoring system as claimed in claim 1, characterized in that: The rainfall collection system adopts a high-precision optical rainfall sensor.

6. A slope safety lightweight monitoring system as claimed in claim 1, characterized in that: The alarm module is an early warning horn.

7. A slope safety lightweight monitoring system as claimed in claim 1, characterized in that: The data monitoring center platform issues early warning information based on the collected information, and its early warning method is: 1) If the displacement speed of the slope in the Y direction pointing outward or in the Z direction exceeds 0.2 mm / h within one hour, the data monitoring center platform prompts the alarm module to send out a warning signal to alert vehicles passing by on the road where the slope is located; 2) If the displacement of the slope in the Y direction pointing outward or in the Z direction exceeds 28 mm / week within a week, the data monitoring center platform will send an early warning message to the remote user to prompt the relevant departments to send special personnel to the slope for on-site inspection; 3) If the displacement of the slope in the Y direction pointing outward or in the Z direction exceeds 96 mm / month within a month, the data monitoring center platform will send an early warning message to the remote user to prompt the relevant departments to send special personnel to the slope for on-site inspection, and then organize an expert meeting for experts to discuss solutions to the slope management; The Y direction of the slope refers to a direction perpendicular to the slope surface and pointing outward from the slope, and the Z direction refers to a vertically upward direction.

8. A slope safety lightweight monitoring system as claimed in claim 7, characterized in that: Regarding item 1) of the early warning method, when the data monitoring center shows that the displacement speed is greater than the emergency warning value based on the collected information, the data monitoring center adjusts the displacement monitoring speed from monitoring within one hour to monitoring the displacement monitoring speed within five minutes.

Images