Residual-Item Detection
Identify parcels, envelopes, boxes and other objects remaining inside reusable logistics bags after unloading, reducing the risk of missed items continuing into bag return, storage or recirculation.
Automated residual-item detection and handling for reusable logistics bags.
Discuss Your Application
Identify parcels, envelopes, boxes and other objects remaining inside reusable logistics bags after unloading, reducing the risk of missed items continuing into bag return, storage or recirculation.
Verify bag identity and RFID status during the inspection process, identifying unreadable or damaged tags and linking inspection results to the corresponding bag record.
Identify abnormal unloading conditions where items remain attached to or trapped inside the bag and may not fall out during normal emptying.

THz Imaging · RFID · AI-Assisted Recognition · Automated Sorting & Handling
Inspection, identification and downstream handling are integrated into a configurable workflow according to bag type, throughput requirements and existing logistics operations.
| Capability | Configuration & Purpose |
|---|---|
| Terahertz Imaging | Transmission-based THz imaging inspects the bag without opening it, providing image contrast for residual objects concealed within the bag. Examples include residual envelopes, small boxes, water-filled bags and bubble-mailer-type items. |
| RFID Identification | RFID reading associates each bag with its inspection record and identifies abnormal or unreadable tags for separate handling. |
| AI-Assisted Recognition | Image-analysis algorithms classify empty and non-empty bag conditions and flag suspected residual items for further handling or review. |
| Automated Sorting | Bags are routed according to inspection results, allowing normal empty bags, suspected residual-item bags and RFID-abnormal bags to follow different downstream paths. |
| System Integration | Inspection, RFID, sorting and handling modules can be configured as a standalone station or integrated into an existing conveyor and logistics workflow. |
Reference throughput of approximately 2,400 bags per hour for the automated inspection concept; achievable throughput should be confirmed against the actual bag dimensions, conveyor arrangement, inspection criteria and site workflow.
Deliverables are defined around the selected sensing configuration and your maintenance workflow.
Inspection images and automated pass/fail results identifying bags with suspected retained items, supporting rapid localisation and targeted manual review.
Inspection results can be linked with RFID information to create traceable records of bag status, inspection outcome and subsequent handling.
Configured routing for normal bags, suspected residual-item bags and RFID exceptions, with optional downstream folding, stacking and bundling.
Application-specific inspection stations integrating THz imaging, RFID, AI analysis, conveyors, sorting mechanisms and bag-handling modules around agreed site, throughput and interface requirements.





We welcome the opportunity to discuss your logistics workflow and inspection priorities. Drawing on previous deployment experience, we can configure the sensing, inspection logic, sorting and handling system around your bag types, target items, throughput requirements and existing line layout.
Contact us to explore a customised solution designed around your production environment.