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Slope water flow depth calculation system and method

A technology of depth calculation and slope surface, which is applied in calculation, image data processing, structured data retrieval, etc.

Active Publication Date: 2017-09-19
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a system and method for calculating the depth of water flow on a slope to solve the problem in the prior art that it is difficult to observe and calculate the depth of water flow on a full slope

Method used

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  • Slope water flow depth calculation system and method
  • Slope water flow depth calculation system and method
  • Slope water flow depth calculation system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] refer to figure 1 , shows a schematic diagram of a slope water flow depth calculation system according to Embodiment 1 of the present invention.

[0021] The slope water flow depth calculation system provided by the embodiment of the present invention includes: a digital terrain acquisition and processing system 101 , a slope construction system 102 (the construction system is not shown in the figure), an artificial rainfall system 103 and a geographic information processing system 104 .

[0022] The slope construction system 102 constructs the slope model 1021 observed by the test; the artificial rainfall system 103 is used to rain on the specified slope model.

[0023] The digital terrain acquisition system 101 includes a camera array 1011 and a synchronizer 1012; the camera array 1011 is arranged above the slope model 1021 for taking terrain images of the slope model 1021 during the test, and the synchronizer 1012 controls the camera array 1011 Each camera takes ter...

Embodiment 2

[0029] refer to figure 2 , shows a schematic diagram of a slope water flow depth calculation system according to Embodiment 2 of the present invention.

[0030] The slope water flow depth calculation system provided by the embodiment of the present invention includes: a digital terrain collection and processing system 201 , a slope construction system 202 , an artificial rainfall system 203 and a geographic information processing system 204 .

[0031] The slope construction system 202 constructs the slope model 2021 observed by the test; the artificial rainfall system 203 is used for raining on the specified slope model 2021 .

[0032] The artificial rainfall system is mainly to simulate the rainfall conditions for the test area, the rainfall intensity is adjustable from 10-200m / h, and the rainfall uniformity is greater than 0.8.

[0033] The digital terrain acquisition system 201 includes a camera array 2011 and a synchronizer 2012; the camera array 2011 is arranged above t...

Embodiment 3

[0044] refer to image 3 , shows a flow chart of the steps of a method for calculating the depth of slope water flow in Embodiment 3 of the present invention.

[0045] The method for calculating the depth of water flow on a slope surface provided by an embodiment of the present invention includes the following steps:

[0046] Step 301: Building a slope model.

[0047] Step 302: Start the artificial rainfall system.

[0048] The artificial rainfall system is mainly to simulate the rainfall conditions for the test area, the rainfall intensity is adjustable from 10-200m / h, and the rainfall uniformity is greater than 0.8.

[0049] Among them, the artificial rainfall system rains on the specified slope model.

[0050] Step 303: Start the digital terrain acquisition system to collect the terrain data of the slope model.

[0051] The digital terrain acquisition system includes a camera array and a synchronizer; the camera array is arranged above the slope for taking terrain image...

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Abstract

The invention provides a slope water flow depth calculation system, which comprises a digital terrain acquisition and processing system, a slope building system, an artificial rainfall system and a geographic information processing system, and is characterized in that the digital terrain acquisition and processing system comprises a camera array and a synchronizer; the synchronizer controls cameras in the camera array to shoot terrain images synchronously, the terrain images are analyzed based on a close-range photogrammetry principle and an oblique photogrammetry principle, and digital elevation models of a slope model are generated; and the geographic information processing system analyzes each digital elevation model and calculates slope water flow depth data of each grid. Therefore, the slope water flow depth calculation system provided by the invention can perform omnidirectional observation on slope sheet flow through acquiring the slope terrain data in real time and building the digital elevation models of the slope model, and can calculate the slope water flow depth on the whole slope in real time.

Description

technical field [0001] The invention relates to the field of slope surface hydrological process observation test field, the technical field of design slope surface water flow depth calculation, in particular to a slope surface water flow depth calculation system and method. Background technique [0002] Slope current refers to the thin layer of water flow formed by rainfall or snowmelt and flowing along the slope under the action of gravity. It is produced when the rainfall exceeds the soil infiltration and ground subsidence storage capacity. Compared with the general open channel water flow, the slope water flow has many differences. It is affected by soil type, vegetation cover, land use type, rainfall characteristics and It is affected by natural or artificial factors such as disturbance, sand concentration, flow channel, etc. Therefore, its motion law and hydraulic characteristics are very complicated. The study of slope water flow has important scientific significance...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06F19/00G06F17/30
CPCG06F16/29G06T17/05G16Z99/00Y02A90/10
Inventor 龚家国赵勇王浩王英冶运涛翟正丽尚毅梓
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES