Paper:

# The Global Shortest Path Visualization Approach with Obstructions

## Guan-Qiang Dong, Zong-Xiao Yang, Lei Song, Kun Ye, and Gen-Sheng Li

Institute of Systems Science and Engineering, Henan Engineering Laboratory of Wind Power Systems,

Henan University of Science and Technology

Luoyang 471003, China

Shortest path experiment device

The avoidance obstacle path planning problem is stated in an obstacle environment. The minimum Steiner tree theory is the basis of the global shortest path. It is one of the classic NP-hard problem in nonlinear combinatorial optimization. A visualization experiment approach has been used to find Steiner point and system’s shortest path is called Steiner minimum tree. However, obstacles must be considered in some problems. An Obstacle Avoiding Steiner Minimal Tree (OASMT) connects some points and avoids running through any obstacle when constructing a tree with a minimal total length. We used a geometry experiment approach (GEA) to solve OASMT by using the visualization experiment device discussed below. A GEA for some systems with obstacles is used to receive approximate optimizing results. We proved the validity of the GEA for the OASMT by solving problems in which the global shortest path is obtained successfully by using the GEA.

*J. Robot. Mechatron.*, Vol.27, No.5, pp. 579-585, 2015.

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