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1. System introduction
With the acceleration of economic globalization and the importance of modern logistics to economic development gradually recognized by the people, my country’s logistics industry is in a period of rapid development. In the future market competition, the competition in the supply chain of enterprises is decisive . The socialization and specialization of production have caused more and more companies to outsource logistics and supply chain management functions to professional logistics companies in order to reduce costs and reduce inventory. This trend has brought great opportunities to my country’s traditional logistics companies, and at the same time it has also brought challenges-only by satisfying the customers’ demand for logistics services to the greatest extent and reducing the cost of logistics services to the greatest extent. Business opportunities can only be obtained by gaining the trust and profits of the enterprise. Therefore, traditional logistics companies such as ports, freight companies, storage and transportation companies, freight forwarding companies, logistics departments of manufacturing companies, and new-type third-party logistics companies can only update their concepts and make full use of modern logistics technology to achieve their business goals. The accuracy and timeliness of information is the key to supply chain and logistics management. This is precisely the most prominent advantage of RFID (Radio Frequency Identification) technology. Goods are affixed with RFID tags, and the system can handle them without opening the outer packaging of the product. The identification is carried out in boxes and packages, so as to accurately obtain the relevant information of the product at any time, such as type, carrier, starting point, destination, transportation link, and so on. RFID (Radio Frequency Identification Technology) system can realize real-time monitoring of all links from raw materials, semi-finished products, finished products, transportation, warehousing, distribution, shelves, final sales, and even return processing. It can not only greatly improve the degree of automation, but also greatly reduce Error rate, thereby significantly improving the transparency and management efficiency of the supply chain; the application of RFID in the logistics industry helps companies reduce costs, gain a competitive advantage, smooth information is conducive to control and reduce inventory, and reduce costs (including labor costs). The RFID logistics management system enables logistics companies to manage the warehousing, sorting, distribution, and transportation of goods more efficiently, accurately and scientifically.
2. Principles of RFID (Radio Frequency Identification) Technology
RFID technology is a non-contact automatic identification 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. The radio frequency identification system generally consists of two parts, namely the electronic tag and the reader. In application,electronic labelAttached to the item to be identified, when the item to be identified attached to the electronic tag passes through the reading range, the reader will automatically take out the agreed identification information in the electronic tag in a non-contact manner (the reader can read 50 at the same time) Or the above label data), so as to realize the function of automatically identifying the item or automatically collecting the identification information of the item.
Three, system characteristics
RFID’s wireless instant long-distance reading method, large-capacity and high-speed data processing capabilities, and a high degree of automation make it an irreplaceable technical advantage;
Cargo, truck and other data can be checked and managed on the Internet in real time;
Virtual inventory tracking;
The system is easy to install and maintain;
Data acquisition is efficient and accurate;
The system tracks all logistics links such as people, goods, pallets, forklifts, trucks, etc. in real time;
All links and processes of logistics are monitored in real time.
Four, system composition
1. Reader: This system uses ThingMagic UHF 915MHzReader, Respectively install the reader and ThingMagic handheld UHF RFID reader for ThingMagic. The reader senses the tag through the antenna and reads the data information in the tag. The reading distance of a fixed installation reader can reach within eight meters, while the reading distance of a handheld reader is about 1 meter.
2. Labels: There are various styles of labels, such as card type, credit card size, installed on trucks, containers, pallets, goods, packages, labels have various packaging forms, which can be selected in a targeted manner. Each tag has a globally unique ID number. In actual applications, it is given the information of the installed objects and goods for identification, reading, and recycling. The label can be easily attached to the object to be identified.
3. Management software: The reader can directly access the port of the computer/PDA/laptop after obtaining a large amount of label data, and automatically enter the system database in real time, which is managed by the management software. The management software is an online version, which means that on any Internet computer in the world, managers or users can inspect and manage the goods in real time, and understand the location of the truck. The information is uploaded to an ordinary Internet platform, so that the visual scene of the end-to-end real-time movement of the goods can be obtained.
Five, system implementation
Warehousing and distribution management:
1. Install card readers at the passages and entrances between the warehouse and the warehouse, so that when pallets, forklifts, goods, etc. with tags enter the reading area, they will be automatically identified, recorded, and sent to the system database for storage; and in the background, When the goods leave the distribution center, the reader at the aisle reads the information on the label and sends it to the processing system to automatically generate a delivery list; after the truck arrives at the destination warehouse, the reader at the pick-up port will automatically check the truck Directly scan the goods on the Internet to quickly complete the acceptance and verification;
2. Labels are installed on carts and pallets, and the management system can track the position of forklifts and pallets at any time. The reader is installed above the passageway through which the forklift and pallets enter and exit the warehouse. Each pallet is equipped with a radio frequency tag. When the forklift is loaded with pallet goods, the reader enables the computer to know which pallet goods have passed. The system handles a large number of pallet goods daily, which can greatly improve efficiency and ensure the accuracy and reliability of goods-related information;
3. Install labels on goods and parcels, and the management system can track all the comparison links and processes of logistics in real time through fixed installation of readers and handheld readers, which is convenient for inventory, search and comparison. It is convenient to take inventory. The staff can clearly grasp the storage situation of the goods in the warehouse from the data collected and sorted by the system; to find the goods, if we use the traditional method to find a certain piece of goods in a large number of stacked pallets, a lot of work will be required , And using the RFID system, the search process becomes so simple, the staff only need to hold the handheld reader to scan through the relevant area to easily and accurately find the goods that need to be searched. Due to the penetrability of radio frequency, it is easy to find a small labeled cargo in the depth of the package;
4. A reader is installed above the cargo conveyor belt. When the cargo passes through the conveyor belt, the system quickly obtains the information of the cargo through the reader, and instantaneously transmits it to the computer to compare with the original data in the system. The RFID management system can completely abandon the traditional method of using written documents to complete the sorting of goods, improve efficiency and save labor; not only can quickly complete the storage and extraction of simple orders, but also can conveniently according to the size of the goods, the speed requirements of pickup, and the requirements of loading and unloading. To realize the storage and extraction of complex goods; sorting workers can realize the automatic loading, unloading, packaging, loading and unloading of goods with simple operations, which reduces the labor intensity of workers and improves efficiency. The most important thing is It can handle this process at high speed without error;
5. The staff or forklift driver can use the handheld card reader to check the goods in the warehouse for information collection and search, which is fast and convenient, which greatly improves the efficiency and accuracy of warehouse inventory and check goods.
6. When the goods arrive at the destination, the staff can check the arriving goods very quickly with a hand-held card reader, and then transfer them to the database for comparison. There will be no mistakes in traditional records, because they can be remotely sensed and are accurate at the same time Processing 30 labels, greatly improving the efficiency and accuracy of work;
7. The staff carries a tag, when the staff moves in the warehouse, they will be tracked by the entrance and exit and the reader installed above the warehouse space, and record the staff’s running time and trajectory, so as to conveniently monitor the staff’s work. Check the work efficiency of the staff;
8. Use the RFID system for intelligent warehouse goods management. RFID completely effectively solves the management of information related to the flow of goods in the warehouse. It not only increases the number of goods handled in a day, but also monitors all the information of these goods. The information is stored in the central computer in the warehouse. When the goods are shipped to other places, another reader will recognize and tell the computing center which trailer it is placed on. In this way, the management center can know how many goods have been processed and how many goods have been sent in real time, and can automatically identify the goods and determine the location of the goods;
9. The simultaneous use of fixed installation readers and handheld readers makes on-site operations such as on-site data collection, inventory counting, warehouse management, and location inspection clear, accurate, systematic and scientific;
10. The truck will be automatically read and recognized by the reader before it leaves the warehouse, and the obtained information will be automatically transferred to the background management system, and the system will be immediately compared with the original data in the database. When information such as miscarriage or missing carriage is found, the system will automatically alarm to prevent trucks from leaving the warehouse, ensuring the absolute accuracy of cargo transportation.
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