Dynamic wireless monitoring and positioning method and system for side slope rockfall disaster

A technology of positioning system and positioning method, which is applied in satellite radio beacon positioning system, radio wave measurement system, beacon system using radio wave, etc., can solve the problem of high installation and maintenance cost of fiber grating monitoring device and easy error of vibration sensor False touches reported, camera and video poor adaptability, etc.

Active Publication Date: 2020-05-26
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are technical problems that are difficult to overcome: the installation and maintenance costs of the fiber grating monitoring device are high; the adaptability of camera and video to complex environments is poor; Manpower and material resources, passively relying on engineering protection measures will be weak and the safety factor is not high

Method used

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  • Dynamic wireless monitoring and positioning method and system for side slope rockfall disaster
  • Dynamic wireless monitoring and positioning method and system for side slope rockfall disaster
  • Dynamic wireless monitoring and positioning method and system for side slope rockfall disaster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment discloses a dynamic wireless monitoring and positioning method for rockfall disasters on slopes, including the following steps:

[0057] Step 1. Arrange more than one rockfall monitoring terminal in the slope monitoring area;

[0058] Each rockfall monitoring terminal is installed on each potential rockfall surface of the slope monitoring area by manual arrangement or drone sowing (if multiple potential rockfalls need to be monitored, a rockfall monitoring terminal is installed on each potential rockfall surface, Such as figure 1 As shown; each rockfall monitoring terminal has a fixed and unique number; when the potential rockfall moves, the rockfall monitoring terminal installed on its surface will move accordingly;

[0059] Step 2. The rockfall monitoring terminal cooperates with the UAV cruise positioning system to obtain rockfall monitoring data;

[0060] In the UAV cruise positioning system, cruise in the slope monitoring area; during each round o...

Embodiment 2

[0064] This embodiment is on the basis of embodiment 1, as figure 1 As shown, the cruise route is planned in advance in the slope monitoring area; on the planned cruise route, a signal emission point is determined at a certain distance; during each round of cruise, the UAV cruises according to the pre-planned cruise route , and transmit a wireless electromagnetic wave signal at each signal transmitting point.

Embodiment 3

[0066] In this embodiment, on the basis of Embodiment 2, the UAV cruise positioning system performs positioning through the GPS high-precision positioning module, and transmits a wireless electromagnetic wave signal of a specific frequency band to the rockfall monitoring terminal through the signal transmission module at the planned signal transmission point, and According to the GPS high-precision timing positioning module, the time for each emission of radio electromagnetic wave signals is determined.

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Abstract

The invention discloses a dynamic wireless monitoring and positioning method and system for a side slope rockfall disaster. The method comprises the following steps of installing a rockfall monitoringterminal on the surface of each potential rockfall in a side slope monitoring area; cruising in a slope monitoring area in the unmanned aerial vehicle cruising positioning system; in each cruise process, sending a wireless electromagnetic wave signal at set intervals; wherein each rockfall monitoring terminal receives a wireless electromagnetic wave signal; after one-round cruise of the unmannedaerial vehicle cruise positioning system is finished, enabling the information processing center to transmit the position and time of the signal according to the position and time of the unmanned aerial vehicle cruise positioning system in the cruise process; acquiring corresponding signal arrival time data of each rockfall monitoring terminal; and calculating the position of each rockfall monitoring terminal in the cruising process of the current round, judging whether the position of each rockfall monitoring terminal in the cruising process of the current round and the cruising process of the previous round is changed or not, and if the position is changed, sending out an early warning of a side slope rockfall disaster at the installation position of the rockfall monitoring terminal. Accurate positioning of falling rocks can be realized, and the cost is low.

Description

technical field [0001] The invention relates to a method and system capable of real-time monitoring and positioning of rockfall on slopes (such as slopes along roads, railways, tailings dams, etc.), and belongs to the field of disaster prevention monitoring. Background technique [0002] According to statistics, the area of ​​mountains, hills and plateaus in my country accounts for nearly 70% of the total land area. With the increasing construction demand of my country's highway and railway transportation industry in non-plain areas, dangerous rocks and falling rocks on slopes have become a major safety hazard affecting the construction and operation of highways and railways. Slope rockfall disasters are sudden, destructive, and often irregular; once they occur, they will cause damage to the construction of road-related facilities and pose a huge threat to the safety of people and vehicles. Because it is particularly important to realize the dynamic monitoring and early war...

Claims

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Application Information

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IPC IPC(8): G01S19/46G01S5/00G01S1/02G08B21/10
CPCG01S19/46G01S5/0009G01S1/02G08B21/10
Inventor 董陇军张义涵陈永超
Owner CENT SOUTH UNIV
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