多車(chē)同軌技術(shù)在巷道堆垛式自動(dòng)化立體車(chē)庫(kù)的應(yīng)用研究
[Abstract]:With the development and popularization of automated stereoscopic garage, the traditional mode of operation can not meet the access requirements of a specific period of time. As a newly developed technology, multi-vehicle-same-track technology can effectively improve the access efficiency of automatic stereo garage. In order to ensure the safe operation of the stacker system, the situation of avoiding should be considered all the time in the process of multiple stacker access scheduling. This ensures that all customers access and complete all vehicles within a relatively reasonable waiting time. This paper has carried on the related research to the application of the multi-vehicle same track technology in the roadway stacking type automatic stereoscopic garage, its main research content is summarized as follows: through the related literature study, In this paper, the characteristics, scheduling principles and access mode of multi-vehicle-same track roadway stacking automatic stereoscopic garage are summarized. Based on the analysis of the structural characteristics and access task characteristics of the stereo garage, the scheduling principles are summarized as follows: the nearest principle, the use balance principle, the customer satisfaction principle and the VIP principle. In access mode, according to the number of tasks in a certain period of time, the number of stacker is determined, and the operation mode is set to single stacker access mode and dual stacker access mode. In the double stacker access scheduling, according to whether the two stacker routes cross, the dual stacker access mode is further refined into the partition access mode and the whole access mode. In addition, the avoidance scheme of multi-vehicle-same-track mode is constructed. In the whole access mode, the stacker will run with the path crossing, so it will avoid the stacker. According to the analysis of the situation of avoidance, this paper compares the characteristics of several avoidance schemes at the present stage, and constructs a bundled task avoidance scheme which is suitable for this mode according to the characteristics of the multi-vehicle-in-orbit model and the access task. The mathematical models of car-storing mode, car-fetching mode and access cross-mode are established, and the single stacker access is calculated and compared by using Visual C software. The working time and the social waiting time of the three access modes, the partition access of double stacker and the whole access of bundling and avoiding by double stacker, and the social waiting time are obtained, and the minimum time parameters are obtained in the whole access mode. The validity of the bundled task avoidance method and the necessity of the whole access mode are verified. Then, the dynamic programming algorithm is used to optimize the task list design. When the stacker system is in the whole access mode, the traditional task completion time is arranged in order from small to large, which may cause the stacker to be idle in the process from partition access to full access connection. By using dynamic programming, the task list of partition access and the task group list of whole process bundled access are optimized to avoid stacker stalling, which ensures the smooth running of the system and improves the access efficiency. To promote the development of this field.
【學(xué)位授予單位】:蘭州交通大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類(lèi)號(hào)】:TD67
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