Solution Background
University laboratories handle a wide variety of hazardous chemicals with complex properties, and the slightest lapse in management can trigger a major safety incident. Traditional manual ledgers — hard to trace, with unclear inventory, casual withdrawals, and chaotic key management — are a serious safety hazard for laboratories. How to use IoT and informatization to ensure that hazardous chemicals are "traceable in origin, trackable in destination, and accountable in responsibility" is a pressing challenge that managers need to solve.
Solution Architecture
This solution is based on the "University Lab Equipment Safety Management Platform," integrating hardware such as smart reagent cabinets and video surveillance to establish a full-lifecycle digital management process from "procurement and check-in — storage — requisition — return — disposal," achieving fine-grained control of hazardous chemicals.
Key Process Management
1. Procurement, intake and code assignment
Procurement requests are approved online; upon delivery, the system generates a unique barcode or RFID tag, applying "one code per bottle" to the reagent bottle. After scanning to register stock, the system automatically updates the inventory ledger and specifies the storage location (down to the cabinet and shelf).
2. Smart storage and monitoring
Hazardous Chemical Storage EntrySmart Reagent Cabinet. The cabinet is equipped with temperature/humidity sensors and VOC gas sensors, triggering automatic alarms when environmental anomalies occur. The system synchronizes cabinet inventory in real time and supports a dual-person dual-lock management mechanism to ensure storage security.
3. Checkout approval and cabinet unlocking
Teachers and students viaMini ProgramSubmit a requisition request, specifying the purpose and quantity. After the supervisor or administrator approves it online, the applicant gains cabinet-opening permission. At the smart cabinet, they verify their identity by card swipe or facial recognition, the cabinet door pops open automatically, the camera captures the requisition process, and the system automatically records the time and the person involved.
4. Return and ledger auto-update
After use, remaining reagents or empty bottles must be returned. Scan the code to return them to the cabinet; the system automatically deducts inventory based on the returned amount and updates the electronic ledger, with no manual forms required. For expired or empty bottles, a disposal workflow is initiated, completing a closed loop.