The Collision Avoidance Strategies Of Straight-Reciprocating Rail Guided Vehicle Based On Simulation

This paper uses the simulation technology to study the collision problem in the linear reciprocating rail guided vehicle system, and also verifies and analyzes the application effect of several collision avoidance strategies through simulation experiments.This paper discusses the path-divided mode and the path-integrated mode policy separately, and then points out the research necessaries of the integrated mode policy. As the inevitable problem in the integrated mode policy, the collision problem and collision avoidance strategies are the focus of this study. Besides the causes of collision, the classification of collision situations is also discussed. According to the literature study and the needs of the real system, four collision avoidance strategies such as priority avoidance, direct avoidance, alternate avoidance and shortest distance avoidance are proposed. To test the application effect, this paper analyzes the specific process and characteristic of these four strategies’ application in a tobacco distribution center RGV system. After creating a RGV system model with the simulation software AutoMod, the avoidance strategies were applied to the model to verify whether they could achieve the desired effect of collision avoidance in the actual system operating process. In addition, two sets of experimental programs were designed to compare the avoidance strategies’ influence on the operational efficiency of the RGV system and the overall system under different system conditions. Through the analysis of the experimental results, this paper finds out the relative merits and application scope of each strategy.