In view of the disadvantages of the existing logistics system in the market in user privacy protection. a privacy protection scheme based on QR code segmentation encryption. hierarchical authorization and time-limited control was proposed. This scheme segments all the recipient information into RSA and Base64 encryption. https://www.bekindtopets.com/best-grab-Goulds-Water-Technology-Submersible-Sump-Pump-LSP0711F-save-more/