RFID application of monosodium glutamate production line of a large domestic joint venture food company
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Currently, RFID (Radio Frequency Identification) is widely used in warehouse logistics management systems. In particular, the application of RFID technology in the three-dimensional warehouses of cigarette factories has fully demonstrated the advantages of RFID technology. RFID (Radio Frequency Identification) brings not only the improvement of information management mode, but also the improvement of benefits that users care about. Recently, as Chinese people pay more and more attention to food safety and hygiene, some large domestic food factories also hope to use RFID (Radio Frequency Identification) technology in the processing, production, storage, and transportation of their raw materials to achieve material traceability and improve production. efficient.
Recently, as the Chinese people pay more and more attention to food safety and hygiene, some large domestic food factories also hope to use RFID technology in the processing, production, storage, and transportation of their raw materials to achieve material traceability and improve production efficiency.
Turck China is a wholly-owned subsidiary of Turck Germany. It has been committed to the development of industrial control for a long time. Its products cover almost all electrical control products from sensors, intermediate connectors to fieldbus IO and controllers. In 2005, Turck China introduced BLident products to China in due course. BLident is an RFID product developed by Turck on the BL67/20 fieldbus platform. The BL67/20 fieldbus platform gives BLident products great performance advantages: it supports a variety of communication methods, and can easily exchange data with various controllers or industrial computers; 2~8 channels can be combined in any combination; IP67 or IP20 protection grade products; compatible with all products under the BL67/20 platform, including digital and analog input/output modules, RS232/422/485 communication modules, high-speed counting modules, etc.; at the same time, BLident supports dynamic reading and writing, code carrier The maximum allowable moving speed can reach 10 m/s; and it can provide thin code carriers and high temperature code carriers that are directly installed on the metal surface.
All of this makes BLident a fish in water in the automation control and information management applications in the industrial control field. Turck can provide perfect RFID solutions according to various process conditions of customers.
industry analysis
The food industry is an emerging industry that Turck is currently focusing on. As the Chinese people pay more and more attention to food safety and sanitation, the processing, production, storage, and transportation of food raw materials are required to be traceable, so as to ensure that the processing of raw materials is safe and reliable. In these processes, RFID has been fully applied. Especially in the raw material warehouse, the application of RFID has further improved the automation and informatization of the control system, and the control scheme is more perfect.
client needs
This project is a monosodium glutamate production line invested and constructed by a large domestic joint venture food company. It has the most advanced monosodium glutamate production technology and technology in China, so customers hope to use advanced technology, reliable performance, and cost-effective products and systems in this project. In particular, a set of material traceability management system is established in the raw material transfer warehouse, and the materials are managed and traced in real time through the use of RFID technology. The system should automatically convert the warehousing data sheet into the data information corresponding to a single pallet, and automatically write it into the code carrier through the RFID read-write head. Then, the system automatically allocates the warehouse area, instructs the forklift to place the materials in the corresponding position of the warehouse, and binds the position information with the information of the code body on the pallet in the system. When leaving the warehouse, the system can automatically guide the forklift to extract materials from the warehouse on a first-in, first-out basis according to the production tasks decomposed into the production order and send them to the corresponding production line. In the process of extracting logistics, the read-write head on the forklift should verify the code carrier on the material pallet to determine whether the material is needed. If an error occurs when a material enters, leaves, or enters the production line, the system should automatically alarm and prompt the operator to deal with it. In addition, in the entire warehouse management process, pallets need to be reused.
Digitized tray
The pallet embedded with the code carrier is called a digital pallet and is widely used in all warehouse management systems using RFID technology. This kind of pallet does not affect the loading of goods, but also facilitates the realization of accurate digital management of large quantities of goods.
Compared with traditional pallets with barcodes, digital pallets are easier to operate during the warehousing process. Because it does not require workers to print a lot of barcodes in advance, then scan them one by one with a Barcode gun, and then paste them on each pallet. Therefore, the working time is reduced and the work difficulty is reduced. In addition, the code carrier is suitable for harsh environments, even if the surface is scratched or stained, it will not affect normal reading. Moreover, it is not as easily destroyed by rain as a barcode, and can be reused. The uniqueness of the UID of the code carrier also improves the accuracy of material traceability.
RFID forklift
In small warehouses, using RFID forklifts for material access is undoubtedly the best choice. Because the RFID read-write head is installed at the front end of the forklift, which is closer to the code carrier on the pallet, the reading effect is greatly improved. In addition, real-time tracking of pallets by RFID forklifts ensures the reliability of the entire warehouse management system. Moreover, in the entire storage process, eliminating human intervention can reduce operating errors and improve operating efficiency.
BLident solution
Due to the scattered locations of production equipment and raw materials, humid on-site environment, dusty materials, continuous production, and multiple types of materials, we recommend that customers use the BLident system based on the fieldbus IP67 protection level. In addition, because the production raw materials are food products, a standard carrier with a protection level of IP68 and suitable for the food processing industry was selected in this project.
Since materials need to be transported by forklift, we install the read-write head on the forklift to read and write the code carrier on the material pallet. But how the gateway also installed on the forklift communicates with the host computer has become a problem before us. Because the forklift moves around, it cannot be connected to the host computer through a cable. After many technical solution discussions and experiments, we finally realized the wireless network communication between the programmable Ethernet gateway and the host computer, thus solving this problem. At the same time, it meets the customer’s requirements for real-time traceability of the entire production system, full logistics, and product lifecycle management.
Material Traceability System
The material traceability production management system is an important part of the real-time traceability of the total logistics of the production system. According to functions, it is divided into planning layer, configuration layer and execution layer.
Planning layer: This layer automatically counts product inventory, customer order status and raw material requirements, and then transmits this information to the material traceability production management system, and the execution system performs production or arranges inventory to meet customer order requirements.
Configuration layer: The system can automatically decompose the production order information provided by the user into production tasks and send them to various production equipment and related departments. And according to the inventory situation of the warehouse, production is arranged, and users are dynamically reminded to stock up. The analysis results of related production information are sent to the relevant personnel’s mailbox in the form of a report or printed as a report.
Executive level: The system mainly implements the production process monitoring of all materials through BLident series products. According to the production process and logistics transportation process, RFID read-write heads are installed at the material entry and exit ports, and RFID read-write heads are installed at each entry line of the packaging production line to monitor the flow of materials throughout the process.
Customer Reviews
The system integrator for this project is Turck (Tianjin) Sensor Co., Ltd. Engineering Department. When talking about the BLident product, Li Jiaxuan, the project leader, said: “Turck RFID read-write head has a similar shape to a proximity switch and is flexible and convenient to install; Byte; The reading and writing distance is between 0~200mm, which fully meets the needs of the application; the working status of the reading and writing head and the reading and writing module can be understood through the LED lights; the code carrier with IP68 protection level can be used in harsh places; Pre-cast cables ensure that data can be safely transmitted in harsh industrial environments; the maximum cable length of 50 meters greatly facilitates installation and reduces network nodes; standard PIB function modules reduce program development.”
Summarize
As a technology of material identification, RFID is widely used in warehouse management systems. Using RFID technology, it is possible to automatically collect data in all aspects of material storage, delivery, inventory counting, etc., to ensure the rapid and accurate data input of all aspects of warehouse management, and to ensure that the company can timely and accurately grasp the real data of the inventory, and maintain reasonable Control corporate inventory. Using RFID technology, you can also grasp the current location of all inventory materials in a timely manner, which is conducive to improving the efficiency of warehouse management.
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