RFID Warehouse Management System
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1. Background
With the increasingly fierce competition, all companies are working hard to save costs and improve work efficiency. System integration is one of the main methods for companies to improve efficiency, but the system integration of various companies has always stayed on the IT system itself. As a bridge connecting the physical world with the existing IT system, RFID technology can effectively integrate the production and supply system of the enterprise with the IT system of the enterprise. It can greatly improve the work efficiency of the enterprise and enhance the competitiveness of the enterprise. At present, the warehouse management system usually uses barcode labels or manual documents to support the management of its own logistics links. However, the characteristics of easy copying, non-fouling, and non-moisture-proof of barcodes, and the cumbersomeness of manual document writing, are easy to cause Man-made losses make current domestic logistics management, especially warehousing, always have defects.
Traditional warehouse management is generally carried out entirely by manual internal management of the warehouse, so the efficiency of wood-panel warehouse management is extremely low. At present, most warehouse management data materials have begun to be managed by computer data systems, but the data is still collected and statistically organized by means of paper recording and then manual input to the computer. This not only causes a lot of waste of human resources, but also due to human factors, the data entry speed is slow and the accuracy rate is low.
With the application of radio frequency electronic tags, the latest technology products, the above-mentioned problems can be fundamentally solved. The RFID warehouse management application solution is Guangzhou Ruifengde’s comprehensive solution for the application of RFID in the logistics field. Relying on many years of informatization implementation experience in the logistics field, and close cooperation with advanced equipment integration and manufacturers, Ruifengde provides enterprises with RFID application mode analysis, and realizes the needs of automation, information and intelligence in enterprise logistics operations. At the same time, it realizes the seamless connection between RFID technology and the enterprise information system to ensure that RFID technology can exert its maximum benefit in enterprise logistics operations.
2. The status quo and problems of man-made wood board warehouse management
Development status
The product specifications of small and medium-sized man-made wood companies generally range from 20 to 50 or more. Especially wood floor manufacturers have a large number of products every day. With the application of new technologies and the development of new products, the types of man-made wood panels are still increasing, and the amount of information collected is also expanding. Using an RFID-based warehouse management system, operators can easily complete the warehousing, outgoing, and inventory work of man-made wood panels on the ERP platform.
The problem
At present, there are many problems in the development of man-made wood board management in the RFID warehouse management system in my country. Mainly reflected in the following aspects:
1) The management of the man-made wood board warehouse is chaotic, and the implementation of the existing system is not in place
The current reality is that the management of the man-made wood board warehouse is chaotic and the accounts are not consistent. The direct consequence of this is the uncertainty of the company’s assets and the inaccuracy of cost accounting, resulting in inaccurate company profits.
2) The classification of wood board materials in storage is not clear, the storage is unreasonable, and it is impossible to achieve first-in-first-out
Due to the large number of wooden materials in the warehouse, they are not classified according to the batches of storage. For each batch of goods in the warehouse, the storage time is not clearly recorded, and it is impossible to achieve first-in first-out, resulting in a backlog of some first-purchased wooden boards in the warehouse. , Wooden boards are worn out in the warehouse for a long time, occupying a large amount of inventory funds, forming waiting materials, and also bringing inconvenience to inventory, cleaning, reconciliation, etc., increasing costs and taking up space.
3) The storage of wooden materials is too much, and the storage of wooden materials in the warehouse cannot be grasped in real time
Inventory control is one of the core of enterprise material management. At present, the company has such a phenomenon in inventory control. Because of the large storage volume of warehouse wood boards and the chaos of warehouse management, it is impossible to accurately grasp the inventory situation, and some materials are short of inventory, which increases urgent use. Materials, increase logistics costs and purchase costs.
Three, the basic principle of RFID
RFID is an advanced and powerful technology. Its basic principle is to use radio frequency signals and their spatial coupling and transmission characteristics to realize automatic machine identification of stationary or moving objects to be identified. In addition to storing a unique identification number, RFID can also store a large amount of useful information related to materials and transmit it securely through wireless. In application, the electronic tag is attached to the item to be identified. When the item to be identified with the electronic tag passes through the reading range, the reader will automatically take out the agreed identification information in the electronic tag from a long distance in a contactless manner (the reader can Read the data of 50 or more tags at the same time), so as to realize the function of automatically identifying items or automatically collecting item identification information. (See the picture below) The information contained in the tag can be read and updated within the controllable range by the card reader working with it. The RFID card reader can have multiple interfaces and methods to connect with the back-end software system for more complex logic processing. RFID technology is different from the current common bar code technology. RFID tags can carry a larger amount of information, can communicate with longer examples, and are flexible in usage.
4. Overview of RFID Warehouse Management System
1. System composition
The system consists of three parts: web server, PC-side data acquisition software, and mobile-side inventory software (PDA). The web server is the data core of the entire system. The server can be logged in from the browser and is mainly used for basic management and query statistics. The C/S client (PC-side data collection software) is mainly used for data collection and statistics when entering and leaving the library. . The mobile inventory software (PDA terminal) is mainly used for on-site inventory of warehousing.
2. web server
The web server is the data core of the entire system. It is mainly used for database management, data distribution to clients, and real-time data interaction with clients to ensure real-time data statistics.
3. PC-side data acquisition software
The PC-side data collection software is mainly used for data collection when entering and exiting the warehouse. According to the exit/entry plan issued on the system, the exit/entry check is performed. If it is detected that the current exit/entry item is not out/into the warehouse On the plan sheet, the warehouse door alarm will sound an alarm immediately, and the system will automatically generate a check-out/in-warehouse list after the warehouse-out/in-warehouse is completed.
Mobile inventory software (PDA side)
The mobile inventory software (PDA side) is mainly used to perform inventory on the spot. First, an inventory plan is distributed on the system, and the inventory plan file is copied to the PDA. After the inventory is completed through the PDA, the PDA will automatically generate an inventory result sheet. Then import the inventory result sheet to the back-end system, and further confirm the inventory result on the back-end system.
Five, system function introduction
1. Information Entry
When the warehouse newly purchases or adds new boards in other ways, first classify them according to the specifications, and then write the type, name, unit price, production date, batch, and corresponding information of the board into the electronic label, and then affix it to the artificial On the board, and input the relevant information of the board into the system, the artificial board number is automatically generated according to the system’s coding rules, or it can be input manually.
2. Storage
1) Receipt inspection
Whether the delivery note is consistent with the purchase order; whether the arrival of the goods is consistent with the delivery note; if it does not match, refuse to accept it.
2) When the wooden boards are put into storage, the system puts each wooden board in the designated corresponding location according to the code and batch of each wooden board, and at the same time generates the warehouse receipt. When the warehouse manager arrives at the designated cargo space, the radio frequency reader screen will display a detailed list of the wooden boards that will be put on the shelf in this cargo space. After the warehouse manager executes the listing according to the displayed detailed information of the goods on the shelf, the main control system automatically updates the inventory wood board records according to the batch, and completes the wood board storage operation.
3. Inventory
The purpose of inventory is to keep the number of accounts and actual inventory consistent, and to accurately grasp the resource status of wood boards. The user first distributes an inventory plan on the system, and the user can download the inventory plan directly via WIFI on the PDA. Each man-made wood board is affixed with a unique coded electronic label. The warehouse manager holds a PDA to traverse all the cargo locations in turn. By reading the unique code on the label, the back-end system database can be called to obtain the information stored in it. The information includes: wood board The type, name, unit price, production date, batch, etc., and all the wood board information collected are transmitted to the system computer in real time through a standard interface. Or by installing a fixed reader on the shelf, the fixed reader scans the electronic tags in the fixed area, and transmits the scanned data to the system computer. The system computer compares all the wood plank information sent with the content of all wood planks in the inventory list in the system computer to generate a clearing bill, complete the warehouse inventory work, and finally generate an inventory report.
4. Positioning
When it is necessary to find the location of board A, the warehouse manager enters the board information in the system query interface, such as board name, board number, batch and other information. After clicking search, all boards with similar information in the database will be extracted and found A plank. Check the cargo location and other related information recorded on the label of A board to get the floor of the cargo location on the A board. If the warehouse manager does not find A plank on site, he will obtain the real-time position of A plank through regional inventory or warehouse inventory, and modify the system information.
5. Anti-theft
After the real-time monitoring is turned on, the system will monitor all the areas covered by the reader. If a board with an RFID electronic tag appears in the reader’s reading range, the system will record the information of the item bound to the tag. If this board is an unauthorized access board, an alarm will be processed.
6. Delivery
When leaving the warehouse, the user can send out a warehouse plan on the system. The warehouse manager traverses all the cargo spaces in turn with a single hand-held PDA according to the outgoing plan. When the designated cargo space is reached, the warehouse manager is prompted to prepare the wooden boards for unloading, and the display will show this cargo. A detailed list of boards that will be removed from the shelves. The warehouse manager will remove the boards in batches (first-in first-out order) according to the displayed detailed information of the board off-rack. The system computer clears the outbound planks from the database, updates the state records of the inventory planks (batch, type, name, unit price, etc.), completes the product outbound operation, and forms the outbound order details.
6. Features of RFID Warehouse Management System
The system fully supports the management requirements of multiple warehouses, and can quickly realize centralized management of the warehouse network of customers distributed across the country through a set of systems. And effectively provide differentiated logistics and supply chain management services for a large number of different warehouses. Related warehouses can achieve linkage operations to build an integrated inventory service system; centralized deployment, a global perspective, global mastery and partial coordination of various businesses, real-time viewing of analysis and statistical reports.
1. Realize first-in first-out management of goods
RFID warehouse management system uses advanced RFID technology, wireless local area network, database and other advanced technologies to combine the entire warehouse management with radio frequency identification technology, which can efficiently complete various business operations, improve warehouse management, and increase efficiency and value. For each batch of goods in the warehouse, the storage time, storage location and other information are automatically recorded by the system. When the goods are out of the warehouse, the first-in first-out management of the goods can be realized on this basis.
2. Real-time management of warehouse inventory
The inventory management of the original warehouse relied on manual reports and manual statistics, which led to the inability of various departments to understand inventory information in a timely and accurate manner. In addition, with the development of business, the number and variety of daily incoming and outgoing goods gradually expand, and customer needs are becoming increasingly complex. Whether the warehouse inventory can be managed in real time has become an important factor affecting the establishment of a fast and efficient operating system. The RFID warehouse management system can accurately grasp the inventory situation of the warehouse in real time, and provide a scientific basis for leaders at all levels and related departments to optimize inventory and make production and operation decisions.
3. Reduce inventory cycle and reduce distribution costs
The traditional warehouse inventory is time-consuming and laborious. The RFID warehouse management system reduces the warehouse inventory cycle, improves the real-time data, and dynamically grasps the inventory status in real-time to realize the visual management of inventory items. Improve the efficiency and accuracy of the picking and distribution process, accelerate the speed of distribution, and liberate the labor force.
4. Advanced RFID data collection operations
The system adopts advanced RFID data collection operation methods, which can realize the rapid and accurate data collection in various key operations in the warehouse management system: storage, storage, inventory, and positioning, to ensure that the company can accurately grasp the real data of the inventory in a timely and accurate manner. Provide an effective basis for corporate decision-making.
Seven, RFID warehouse management system hardware composition
The RFID warehouse management system consists of hardware such as electronic tags, desktop card readers, and UHF handsets. The following only introduces desktop readers, electronic tags and UHF handsets.
1. Desktop Reader
The RFD-U8622 UHF Desktop Reader is a UHF RFID chip PR9200 that uses the industry’s most cost-effective UHF RFID chip. It uses the highest performance components and has excellent tag recognition performance such as a wide range of tag reading distances and multi-tag recognition. It is used to read the electronic tag and write the relevant information of the wooden board into the electronic tag.
2. UHF electronic tags
The ultra-high frequency white card RFD-T864U is a white card label mounted on PVC material. It is widely used in warehouse management systems. The relevant information of the wood board is written into the label through the reader and then pasted on the artificial wood board.
3. UHF handheld
The UHF handheld is RFD-U7910, which uses Android operating system, compatible with 4G, WIFI, Bluetooth, optional printer function, and supports GPS and Beidou positioning. It is mainly used for data collection for warehouse access, inventory, etc.
8. Commercial value of RFID warehouse management system
As an integrated software and hardware integrator, Guangzhou Ruifengde Information Technology Co., Ltd. can assist the enterprise in completing the RFID technology application process from the perspective of professional consulting in the process of enterprise RFID implementation, and bring the following benefits to the enterprise:
· Professional and objective feasibility analysis to protect corporate investment;
· Starting from the requirements of the enterprise’s logistics business, ensure that the application of RFID technology can effectively improve the operational efficiency of the enterprise;
· Assist enterprises to plan and adjust warehousing business processes, and lay the foundation for the implementation and use of RFID technology applications;
Realize the seamless integration of RFID system and existing information system, realize data sharing and integration, ensure the coherence and smoothness of enterprise logistics business processing, and enhance the application effect of RFID.
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