手机更新换代不断加快,高效且规范地回收不断增加的废旧手机成为目前亟待解决的社会难题,"互联网+"废旧手机回收模式的出现和不断完善使该难题的破解成为可能.在对影响回收效率的各因素及其相互关系进行分析的基础上,构建"互联网+"废旧手机回收模式的系统动力学模型,利用Vensim软件绘制因果回路图、存量流量图,并收集相关数据,针对废旧手机回收价格、信息安全性和物流费用对回收模式效率影响情况进行仿真分析.研究表明,信息安全性是影响"互联网+"废旧手机回收模式效率最重要的因素.%Fast advancement in technology provids better phones and forces consumers to change their phones frequently ,which in turn results in large amount of used phones needed to be recycled efficiently and environmentally . The appearance and improvement of "Internet+" used phone recycling mode makes it possible to solve this problem . System dynamic model was established based on analyzing the factors which influenced defficiency of "Internet+"used phone recycling mode .Causal loop diagrams and stock-flow diagrams were drown by using Vensim .Relevant statistics have been collected and simulation analyzing was performed on effects of recycling price ,information security and logistics fee on efficiency of "Internet+"used phone recycling mode .The simulation results showed that informa-tion security was the key factor which influenced the efficiency of "Internet+" used phone recycling mode .
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