AGV warehouse tray checking method based on RFID technology

Abstract

The invention belongs to the technical field of warehouse management systems, in particular to an AGV warehouse tray checking method based on the RFID technology. The method is especially suitable fora warehouse single-layer ground pile storage scene. When a common guide transport vehicle AGV cannot read a supporting plate electronic tag (RFID tag) located in the middle through an RFID module ina peripheral warehouse channel, an AGV small in size is adopted, a laser radar SLAM technology and a WIFI wireless transmission technology are combined, the AGV automatically drives under the tray (inthe socket) according to a checking line, reads the RFID tag information on the tray one by one, records the storage location of the tray, and wirelessly transmits the data to the background, therebyreducing the warehouse operation channel, improving the warehouse storage area, reducing the warehouse inventory cost, and improving the intelligent level of warehouse inventory.

Description

technical field [0001] The invention belongs to the technical field of warehouse management systems, and in particular relates to an RFID-based AGV method for inventorying warehouse pallets. Background technique [0002] Warehouse Management System (WMS) integrates batch management, material correspondence, inventory counting, quality inspection management, virtual warehouse management and real-time inventory management through the functions of inbound business, outbound business, warehouse allocation, inventory allocation and virtual warehouse management. A management system with comprehensive functions such as warehousing and other functions can effectively control and track the entire process of warehouse business logistics and cost management, and realize perfect enterprise warehousing information management. Generally, WMS is inseparable from automatic identification technology. First, analyze the database in the customer's existing system, and establish a barcode for e...

AI Technical Summary

Problems solved by technology

However, the automatic guided vehicle (AGV) equipped with an RFID module is not suitable for the intensive storage scene of a single-layer pile, because RFID is a short-distance identification technology, and the automatic guided vehicle (AGV) can only be used in warehouses. Drive in the surrounding passages

[0005] Therefore, for the intensive storage of RFID pallets in flat warehouses, a large number of goods are stored on the pallets, which will seriously affect the recognition distance of the RFID module to the RFID tags on the pallets. Calculated according to the two specifications of my country's pallet standards 1000mm*1200mm and 1100mm*1100mm, the existing The RFID inventory method can only count the RFID tags on the second pallet from the channel

In the intensive RFID pallet storage warehouse, there is no vacant space or aisle between pallets for people or automatic guided vehicles (AGV) to pass through. Using RFID handhelds or RFID inventory AGV trolleys for inventory cannot be identified remotely The RFID tags on the third pallet in the middle of the storage and the pallets farther away cannot be counted to each pallet and the position of the pallet in the warehouse, and the pallet and the goods on the pallet are correspondingly bound, so it is impossible to count the goods in the warehouse Quantity and physical location

As shown in the accompanying drawings, the existing RFID intelligent inventory method cannot take inventory of the RFID tags on the pallets in the black area in the middle of the warehouse

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