Stochastic Model and Simulation Research for Random-Storage Return-Type Manual Order Picking

It aims at researching the manual order picking time of logistics distribution center, tour length hence. It builds picker route stochastic model under random-storage return-type picking conditions. It makes model approximation calculation with simulation result and conducts good results under permission errors. It provides basic foundation for building random distribution function of picking time. And it establishes foundation for building random service system model of distribution center manual order picking.