快速发药系统出药方式优化研究及仿真

Study and simulation of delivering drug ways of the rapid dispensing drug system

针对自动化药房快速发药系统按层出药速率较低的问题,对快速发药系统的出药机构动作特点进行了研究分析,提出了一种矩阵式电磁铁顺序动作的出药方式。针对传统的按层出药方式和优化后的顺序动作出药方式,分别建立了不同层不同数量药品出库执行时间的模型,并采用离散型数据对该模型进行了Matlab仿真;最后,采用某医院药房出药情况的实际数据进行了实验。仿真结果表明,两种出药方式的出药时间都受药品的最大药盒数量影响,最大药盒数量越大,出药所需时间越长;按层出药方式的出药时间与药品摆放位置有很大关系,层数增加时,出药需要时间成倍数增加,而顺序动作出药方式的出药时间不受药品摆放位置影响,层数增加对出药时间没有影响。实验结果表明,顺序动作出药方式比按层出药方式节约了近47%时间。

Aiming at improving the delivering drug speed of the rapid dispensing drug system, the movement of the delivering drug mechanism was investigated and a new method of delivering drug which is called electromagnet actions one by one was proposed. The mathematic models were built for the new method and the traditional method based on the delivering drug time, and then the models were simulated in Maflab by changing the parameters. At last, the data that collected from hospital was used in the models. The simulation results show that delivering time of the two methods is influenced by the maximum number of the medicine. The more the medicine need to deliver, the more time it costs;also, the delivering time of the traditional method is multiplied while the delivering time of the new method changed a little when the number of layers increased. The experimental results indicate that the new method can improve 47% efficiency over the traditional one.