RFID Warehouse Management System and Implementation
The RFID warehouse management system achieves full process automation management of materials through wireless signal recognition technology. Its core architecture and implementation points are as follows:
1、 Core components of the system
1. Hardware architecture
RFID tags: Choose metal resistant tags (such as automotive parts), high temperature resistant tags (-40 ℃~120 ℃), or ultra-high frequency tags (batch reading) based on the characteristics of the material.
Reading and writing devices: Fixed readers are deployed at warehouse entrances and shelves, while handheld devices are used for flexible inventory.
Data transmission network: WLAN or hybrid network is used to ensure real-time performance, and wired network is preferred for automated three-dimensional warehouses.
2. Software functions
Layered design: data collection layer (tag information), processing layer (data cleaning and ERP interaction), and application layer (inbound/outbound/inventory module).
Database: Use MySQL or Oracle to store goods information, inventory records, etc., and integrate data through foreign key associations.
2、 Implementation process
1. Label deployment
High frequency tags (HF) are suitable for fine management of small items, while ultra-high frequency tags (UHF) are suitable for long-distance identification of large items
For example, after a certain automobile factory adopted anti metal labels, the efficiency of metal parts warehousing increased by 90%
2. Reader layout
The installation of a reader/writer on the channel door enables automatic storage and retrieval, and the built-in reader/writer on the shelf supports real-time positioning (accurate to the layer).
3. System integration
Integrate with ERP and sales systems to achieve inventory data synchronization.
3、 Application advantages
• Efficiency improvement: The storage time for the entire pallet has been reduced from 60 minutes to 3-5 minutes, and the inventory efficiency has reached 7 x 24 hours with automatic completion.
Accurate traceability: The full process traceability time for medical device factories has been reduced from 6 hours to 40 minutes.
Environmental adaptation: High temperature resistant labels in heavy machinery factories have reduced the outbound error rate from 18% to below 1%.
Advantages of RFID: Non line of sight reading, batch recognition (multiple tags per second), strong anti-interference ability.
Barcode limitations: Manual scanning is required for each item, and if the damage rate exceeds 30%, it will become invalid.