Disassembly-to-Order System with Cybersecurity Risk in Remanufactured Products to Maximize Recovery Rate and Profit
摘要
Product recovery involving remanufacturing and material recycling through disassembly system is essential to realize sustainable manufacturing. To remanufacture IoT end-of-life (EOL) products such as laptops and smartphones, in addition to physical and value lifetimes, cybersecurity risks for each component need to be considered as there is a case that an old component in EOL product is not satisfied with minimum required performances for security software, and is not undesirable as the reuse component due to known vulnerability. In this case, even though the old component is still working properly, the old component should be replaced with newer one to satisfy the performances for security software. Moreover, key/certification update should be conducted in changing ownership of remanufactured products for privacy protection of a previous owner. This study proposes disassembly-to-order system with cybersecurity risks in remanufactured products to maximizing recovery rate and profit using goal programming. The proposed model determines the number of EOL products and components for each recovery process, such as disassembly, inspection, recycling, and key/certification update. Numerical experiments using laptop were conducted to illustrate a design example, and achieved 79% recovery rate with 1% lower profit only compared to results in single objective for profit.