Route planning method under nuclear radiation environment

A technology of path planning and environment, applied in the direction of navigation calculation tools, etc., can solve the problems that nuclear power plant maintenance personnel cannot reduce the daily maintenance shutdown and maintenance, and achieve the effects of reducing radiation risk, convenient use, and small amount of calculation

Inactive Publication Date: 2018-10-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these devices have ensured the safe operation of nuclear power plants to a certain extent, they cannot reduce the radiation exposure of nuclear power plant maintenance personnel for daily inspections and shutdown inspections.

Method used

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  • Route planning method under nuclear radiation environment
  • Route planning method under nuclear radiation environment
  • Route planning method under nuclear radiation environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Such as figure 1 As shown, a path planning method in a nuclear radiation environment includes the following steps:

[0036] S1, such as figure 2 (a) This is a simulated simple map of this implementation (the border represents the factory building or room). In order to avoid collisions with obstacles during the walking process of the staff, the obstacles are inflated and outwards along the normal direction of the obstacle contour line The expansion is half the shoulder width of a normal adult, specifically 25-30cm, and the map after being expanded by obstacles is as follows: figure 2 Shown in (b); In the present embodiment, described obstacle is various equipment in the radiation environment;

[0037] S2. On the map that has been inflated with obstacles, generate a point set V containing a specified number of random points, and the random points exist in free space to avoid collisions with obstacles;

[0038] S3. Perform local planning: connect the elements in the r...

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PUM

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Abstract

The invention discloses a route planning method under the nuclear radiation environment. The route planning method comprises the following steps: S1, in order to prevent workers from colliding obstacles in a walking process, swelling the obstacles; S2, in a map which the obstacles have been swelled on, generating a point set V containing the appointed number of random points; on a free space whichthe random points exist in, avoiding collision with the obstacles; S3, performing partial planning, connecting elements in the random point set V two by two, constructing a set E related to side lengths after collision detection and calculating out dosage values corresponding to all the side lengths through a dosage function at the same time; S4, inputting a starting point qI and a terminal pointqG and connecting the starting point and the terminal point into the side length set E according to the S2; S5, utilizing an A*algorithm to perform discrete searching to obtain a side sequence and forming a route from the qI to the qG through the obtained side sequence. The route planning method disclosed by the invention utilizes a random route diagram method to find routes under the nuclear radiation environment, has a small calculation amount, can quickly find the route with the complete probability and reduces radiation risk.

Description

technical field [0001] The invention relates to the fields of nuclear engineering and nuclear technology, in particular to a path planning method in a nuclear radiation environment. Background technique [0002] At present, nuclear power plants have taken more thoughtful measures for nuclear radiation protection. However, for those employees whose work is closely related to nuclear facilities, it is inevitable that they will be exposed to a small amount of radiation. Although most of these radiations are within the controllable range, there are still potential risks to them. These radiations should be reduced or avoided in the development of nuclear power. For example, for maintenance personnel, radiation poses a great potential risk to their health during each outage or routine maintenance. If they inadvertently go to areas with severe radiation, it will cause great harm to them. If we can design a reasonable path for them to minimize the amount of radiation they receive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 蔡杰进王壮
Owner SOUTH CHINA UNIV OF TECH
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