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Method and device for judging vehicle safety under flood disaster

A flood disaster and identification method technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of easy instability of vehicles, damage to life and property, collision with pedestrian buildings on the roadside, etc., to achieve reliable evaluation indicators, improve practicability, vehicle Safe and reliable effect

Active Publication Date: 2020-03-31
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the action of flood, vehicles parked on the side of the road are prone to lose stability and collide with pedestrians and buildings on the side of the road, causing damage to life and property

Method used

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  • Method and device for judging vehicle safety under flood disaster
  • Method and device for judging vehicle safety under flood disaster
  • Method and device for judging vehicle safety under flood disaster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0068] Embodiment 2: as Figure 4 Shown is the total water head measurement device, the device is mainly composed of pressure water depth sensor 1, Doppler flow rate measuring instrument 2, assembly box 3, electronic water level switch 4, display screen 5, warning sign 6, bracket 7, base 8, Antenna 9, wire 10 constitute.

[0069] The total water head measuring instrument is placed in a road section where the terrain is low and prone to flood disasters in cities with frequent rainstorms. When the flood depth of this road section is greater than the height of the electronic water level switch 4, the circuit is connected to the power supply 34, and the device starts to work. First, the pressure water depth sensor 1 transmits the water depth signal to the water depth converter 31 in the assembly box 3 through the electric wire 10, and the Doppler flow velocity measuring instrument 2 transmits the flow velocity signal to the flow velocity converter 32 in the assembly box 3 through ...

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Abstract

The invention discloses a method and a device for judging vehicle safety under flood disaster. The method comprises steps of performing the force analysis of the vehicle under the flood disaster, and constructing the expression of each force; according to the theory of mechanical balance, deriving the expression of the starting velocity of the vehicle under the condition of the initial sliding instability; determining the relationship between the starting velocity and the water depth under the action of flood disaster, and obtaining the relationship curve chart; combining the relationship curve between the flow velocity and the water depth, using the formula to convert the flow velocity and the water depth into the total head value, and calculating the critical total head value; and collecting the total head value of each section by using the total head measuring device and comparing it with the critical total head value to determine the driving safety of each section. The method and the device take into account the influence of the water depth and the flow rate on the vehicle safety, and the evaluation index is more reliable.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to a method and device for judging vehicle safety under the action of flood disasters. Background technique [0002] In recent years, global climate conditions have changed, and extreme weather such as heavy rains has occurred frequently, leading to an increase in urban flood disasters. Under the action of floods, vehicles parked on the roadside are prone to lose stability and collide with pedestrians and buildings on the roadside, causing damage to life and property. Therefore, it has become one of the hotspots of contemporary scholars to study the stability of vehicles under flood disasters and provide a basis for their safety standards. [0003] The forms of vehicle instability under the action of floods mainly include sliding, floating and rolling. At present, the methods used in the study of vehicle stability under the action of flood disaster...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 李传奇马梦蝶肖学杨裕恒李锡铜崔佳伟杨幸子
Owner SHANDONG UNIV
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