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The rail freight handheld is a special handheld mobile terminal customized by the freight subject group to the freight station, which can interact with the "Freight Station Security Monitoring and Management System" for information. The system integrates RFID module, QR code module, voice intercom function, handheld management platform, etc. Freight handhelds receive the operation plan issued by the freight station system for operation through 4G network (security authentication), and upload the image data such as photo and video of the operation process and problematic vehicles to the freight station system to realize mobile office.