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At present, the first phase of the promotion of the tobacco industry’s “Project No. 1” (commonly known as the “Industry Cigarette Production and Operation Decision Management System” in the industry) has been basically completed, and the second phase has been carried out nationwide. With the deepening of work, some urgent problems have gradually emerged. First of all, it is an extremely large and cumbersome task to uniformly manage cigarette information across the country. In addition to the need to track cigarette information, it also needs to confirm the information in multiple links; second, the traditional barcode system has obvious shortcomings , Such as easy contamination, breakage, need to stop waiting for scanning one by one, etc., batch reading efficiency is not high, unable to meet the needs of fast and accurate. How to solve these problems? Practice shows that the application of RFID technology in automatic identification technology can play a huge role here.
Application requirements
Chongqing Tobacco Company is one of the leading enterprises in the municipality directly under the Central Government. The city has 2,470 specialized tobacco cooperatives. At present, Chongqing’s annual tobacco consumption has reached 40 billion cigarettes (800,000 boxes). The company’s leadership started operating it in 2003 The system carried out drastic innovations. After three years of hard work, the company ranked among the top three of the city’s top 50 industrial and commercial enterprises, and the first of the top 30 commercial enterprises.
The traditional operating model of the Chinese tobacco industry is to collect orders first, and then process them in a unified manner. The disadvantages of this model include the inefficiency of the delivery of goods, which puts pressure on inventory management, and because the delivery time lags significantly behind the customer ordering time, this will affect the goods. Circulation in the market may be out of stock. Based on this situation, the reform concept of Chongqing Tobacco Company is to establish a real-time rolling order processing system, and the backbone of this system is a modern logistics distribution center equipped with a unified call center.
In 2006, Chongqing Tobacco Company cooperated with Weishen Technology to adopt RFID technology and apply digital management system to carry out the overall integration of warehouse management, which is the digital warehouse management system of tobacco commercial enterprises.
Through this system, the company strives to meet the requirements of the distribution operation mode in modern logistics, calmly respond to large-scale busy logistics and distribution work, and ensure high-quality data exchange in the supply chain. Enhance its transparency, effectively curb or even eliminate extracorporeal circulation, and play a huge role in tobacco monopoly management.
application solution
In this case, the application scheme of RFID technology in the digital warehouse management of Chongqing Tobacco Company is shown in Figure 1. The key technologies include: radio frequency identification technology, pallet digital management and RFID forklift applications.
The current application advantages of radio frequency identification technology (RFID) to all walks of life in society are obvious to all. It is convenient and quick to read, fast in recognition speed, large in data capacity, long in service life, wide in application, and has better security. Tag data can be changed dynamically, and dynamic real-time communication can be realized.
Today, tray management has become an inevitable trend in the logistics of tobacco products. As the basic digital management unit, the pallet is embedded with electronic labels, which will not affect the appearance quality of the goods, but also increase the overall digital average unit number of the goods, which is convenient for realizing the accurate digital management of large quantities of goods. The application of electronic tags in logistics distribution centers is based on digital warehouse management application software, computer wireless network technology, and modern logistics three-dimensional high-bay warehouse ideas. The advantages embodied by the pallet digital management are: high work efficiency, low damage rate in the logistics process, and meet the needs of mechanization and automation of the work process.
For the special application environment of tobacco logistics, RFID forklift is the best choice (as shown in Figure 2). Through the RFID forklift, the antenna can be closer to the tag position when receiving and dispatching, improving the reading performance, and the pallet can be continuously tracked throughout the entire process instead of discrete tracking. In addition, with the corresponding warehouse management system, a single step can be achieved Operation control, eliminating manual intervention, improving operation efficiency, while improving and strengthening management, real-time grasp of detailed inventory and distribution.
Application process
The system hardware includes: RFID tags, fixed read-write devices, handheld read-write devices and RFID forklifts. Among them, fixed read-write equipment is used in automated stackers, conveyors, and hoists. RFID readers pass the read tray information to the PLC for corresponding processing; handheld read-write equipment is used for manual stacking , That is, first read the pallet information, and then read the barcode information on each cigarette on it one by one, upload the information to the system, and associate it in the database; the RFID forklift is used to change the stack, and it is read by the RFID reader Tray information, and then use the wireless scanner to scan the barcodes on the removed or added cigarettes one by one, upload all the data to the system, and update the database. The scene diagram is shown in Figure 3. In terms of software, the RFID digital warehouse management system adopted by Chongqing Tobacco Company includes a receipt management system, a warehouse business management system, a pallet storage and exit management system, and interface service middleware.
Inbound: When the goods enter the warehouse through the conveyor belt at the inbound port, the information of each pallet is written into the pallet through the inbound port reader and writer, and then the outbound position is calculated through the computerized warehouse management information system, and the inventory instruction is sent to the forklift through the network system The system is stored in the corresponding cargo space as required.
Outbound: After receiving the shipping instruction, the forklift picks up the pallet goods at the designated cargo location. Forklift the front forklift reader to confirm the accuracy of the pallet goods again, and then send the pallet goods to the conveyor belt at the outgoing port, and the conveyor belt reader at the outgoing port reads whether the pallet label information is accurate and verifies that the shipment is correct.
Effectiveness analysis
RFID technology has been reasonably applied in the whole scheme, and the data concentration problem has become very easy and easy to realize. Although this case only introduces the application of RFID technology in the storage and retrieval of goods by tobacco manufacturers, but by extension, if RFID technology is extended to a complete supply chain system, cigarettes can be further tracked and recorded automatically at any time The true situation of each link in the supply chain. These detailed information can be directly controlled by the national and local cigarette management departments through the computer network system, so as to provide a comprehensive, detailed, accurate, and timely decision-making basis for the national bureau’s macro-control and decision-making commands.
Practice has proved that the production operation system of the Chongqing Tobacco Commercial Distribution Center has achieved remarkable success and economic benefits in the industry. Chongqing Tobacco is planning to extend this successful system to the sub-centers of various districts and counties in order to achieve a comprehensive manufacturer’s digital tray. Prepare for intermodal transport. The relevant person in charge of Chongqing Tobacco Cigarette Logistics Branch said: “RFID technology, as an effective technical means to connect the company’s production terminal facilities with the existing information system, organically integrates the company’s production, logistics system and IT system, greatly Improve production efficiency and enhance corporate competitiveness.
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