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1. RFID logistics transportation management
1.1. Problems that need to be solved in modern logistics management
In terms of logistics system design, the logistics of each logistics company must simultaneously achieve at least six different operational goals. These operational objectives constitute the main aspects of logistics performance, including rapid response, minimum variation, minimum inventory, integrated transportation, quality, and life cycle support.
A modern logistics system needs to complete a lot of work. We need to grasp the core issues of logistics and start with the core issues to improve the modernization level of logistics and increase the economic benefits of enterprises.
1.2. The core problems that logistics management need to solve
With the change of manufacturing environment, product transportation cycle requirements are getting shorter and shorter, diversified production methods, and logistics requirements are getting higher and higher. Therefore, it is necessary to establish and implement an efficient and complete supply chain management system, with the help of technology and information. Closely unite suppliers, demanders, and logistics companies. Logistics management can be briefly summarized as several key management points:
Receipt: The logistics company confirms the condition of the goods when receiving the goods, carefully counts, the lack of recognition is correct, and confirms that the goods are put into the warehouse in time;
Sorting: Quickly find and sort the corresponding goods information through the handheld device, saving a lot of working time;
Delivery: In accordance with the normal logistics invoice, collect the cargo label information for each batch of goods that need to be transported out of the hand-held device, so that the relevant cargo information can be checked later;
Tracking: Logistics management should have the ability to trace cargo information, extending forward to logistics transportation and supplier delivery and receiving, and then extending to the demand merchant to receive the goods.
RFID information logistics management system relies on mature digitization and networking as the core information technology to realize material visualization and dynamic simulation, accurate prediction, grasp the flow direction and flow of materials, and realize efficient and reasonable operation methods on this basis. If precision logistics wants to be precise and fast, it must adopt many modern information technologies to make the transportation equipment of logistics in different areas transparent and controllable. To help logistics companies conduct scientific management and reasonable scheduling of logistics and transportation, reduce the no-load rate, improve operating efficiency, and effectively reduce operating costs.
Reasonable and efficient logistics and transportation management plays a very important role in the entire management process. If timely and accurate purchase, inventory control and delivery cannot be guaranteed, it will bring huge losses to the enterprise, which is not only manifested in the various management costs of the enterprise. Increasing, and will make it difficult to guarantee the quality of customer service, and ultimately affect the company’s market competitiveness. Therefore, we propose a new logistics system solution based on radio frequency identification to solve the deficiencies in modern logistics management.
2. Economic benefits of RFID logistics transportation management belt
Traditional logistics management generally relies on a non-automated paper document-based system to record and track incoming and outgoing goods. The internal management is completely implemented manually. Therefore, the efficiency of management is extremely low, and the scale of management is also very large. small. With the popularization of computer applications, the current large-scale logistics company management data have begun to use information-based computer data system management, but the data is still collected and statistically organized by using paper records and then manually inputting them into 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 continuous development of the scale of logistics enterprises, the number of types of goods transported by logistics management is increasing, the frequency of goods in and out has increased sharply, and logistics management operations have become very complex and diversified. Traditional manual operation modes and data collection methods have been difficult to meet. The rapid and accurate requirements of existing logistics enterprise management have seriously affected the operational efficiency of logistics enterprises and become a major obstacle to the development of enterprises.
The logistics management system based on radio frequency identification (RFID) technology introduces RFID technology into the existing logistics management, and automatically collects the data of each operation link such as arrival inspection, warehousing, and delivery. Ensure the speed and accuracy of data input in all aspects of cargo management, ensure that enterprises grasp the real data of goods in a timely and accurate manner, and reasonably maintain and control the smooth flow of enterprise logistics and transportation. Through information-based RFID technology, it is also convenient to manage the quantity and flow of goods, which is conducive to improving the efficiency of logistics management.
After adopting RFID technology, it will bring the following benefits to enterprises:
(1) Save the cost of manual data collection;
(2) Automated logistics management operations to improve work efficiency;
(3) Reduce management costs and human errors
(4) More precise entry, exit and storage control;
(5) Enhance partnerships;
(6) Quickly respond to customer needs and expand product shipments.
3. RFID-based logistics transportation management system
3.1, system design principles
The plan strictly follows the technical specifications involved in the project. Maximize the use of the most advanced technology of existing computers. Follow the principles of real-time, integrity, stability, advancement and scalability, and establish an economically reasonable and resource-optimized system design plan.
(1) Real-time: The system adopts the most advanced RFID and wireless network data transmission technology, which makes the operation and management of goods in and out of real-time, greatly improving the efficiency of existing work and realizing the maximum benefit of logistics management.
(2) Integrity: The system involves data management of wireless handheld devices, wireless receiving devices, database foreground and background. Although they are physically separated from each other, they all have their own system support. In order to enable the various parts to work in a unified and coordinated manner, the overall consistency between them must be ensured in the design.
(3) Stability: The system is an information system for cargo management and field operation services. In the design of the system, the efficiency and stability of the system are optimized, so that the system can ensure the stability while ensuring the speed.
(4) Advancement: The system is an intelligent system integrating computer software and hardware technology, wireless network technology, internet network technology, RFID automatic identification technology and database technology.
(5) Scalability and maintainability: According to the operating principle of the system, the scalability and maintainability of the system are necessary means to improve the performance of this system. This system adopts a structured and modular structure, and a certain module can be modified and new functions can be added as needed to make it have good maintainability. The system also reserves interfaces with other subsystems, which makes the system have better scalability.
3.2 Main functions of the system
The logistics management system based on RFID technology has the following basic functions:
① Collect cargo information conveniently and accurately
In the cargo storage warehouse, RFID location electronic tags or pallet tags are used to quickly and accurately complete the collection of cargo information in the corresponding cargo location storage area through the handheld device; and use the handheld device to update the data of the tag information of the corresponding cargo location, and at the same time use Wireless transmission will upload the data to the business management hall in time.
② Query and track cargo information
Log in to the software terminal of the management system, query the specific information of the transported goods, and judge the actual status of the goods (transported/not out of the warehouse) through the specific information results;
③ Realize the reasonable distribution of human and material resources
In the logistics management process, not only the support of the system terminal database is required, but also the manual operation of the handheld machine is required to realize the reasonable allocation of human and material resources.
④ Real-time statistical reports, summarizing all kinds of information.
Use handheld devices to collect information on the cargo locations with RFID tags in the warehouse, and then transmit it to the system management platform to realize the system summary of the current cargo information, and to understand the actual situation of the cargo in time.
3.3, system application design
3.3.1, tray management
In the actual management of railway logistics yards, the stacking of goods is currently managed by pallets. In order to facilitate timely grasp of the stacked goods and related information, we consider placing RIFD electronic tags on the pallets. Warehouse managers can effectively use handheld devices. Effective management of the goods, the use of RFID information management methods to reduce effective management costs and work intensity, the management center can also manage and summarize the warehouse goods information in a timely manner.
3.3.2, cargo location management
According to the current management of the cargo warehouse, each cargo is expected to stack two wagons of cargo. However, how to conduct real-time and effective scientific management of each cargo location in the warehouse and improve the utilization rate of the location is also an important part of the logistics management of the cargo yard. With the help of RFID information technology, RFID location tags are installed in each location of the warehouse. The staff can not only understand the occupancy of the cargo space in time, but also upload and report the information of the goods stored in the cargo space, which improves the warehouse to a certain extent. The utilization rate of the cargo space and the economic benefits of the enterprise.
3.3.3、Forklift management
At present, logistics goods yards use forklifts to reload goods, and RFID readers are installed on each forklift, which can easily and quickly read pallets and cargo location information and upload them to the management center through the wireless network in time.
3.3.4, access control management
With the frequent passing of vehicles between the railway logistics and freight center, safety management is also a logistics management work that cannot be ignored. For the current self-owned vehicles of the logistics and freight center, each truck is issued and installed with on-board RFID electronic tags. At the same time, fixed RFID readers and monitoring security alarm equipment are installed at the entrance and exit gates of the logistics center to facilitate the effective management of the entry and exit of vehicles in the logistics center. At the same time, for foreign vehicles, the logistics center can issue temporary RIFD identity cards to achieve reasonable management, avoid accidental safety hazards, and thus fully ensure the safety of the railway logistics and freight center.
3.4, system architecture
3.5. Operation process
3.5.1 Operation process of goods arriving in the warehouse
3.5.2 Operation process of goods delivery
3.6, data collection and transmission
Based on the actual situation of the physical base site, we use wireless networks for data transmission. Read the electronic tag data of the freight yard through the handheld device, and after the information is obtained, the data is sent to the data receiver in the business hall through the wireless transmission device, and the received information is transmitted to the database to complete the corresponding update operation of the data.
The wireless digital warehouse management system has the following characteristics:
1) Large warehouse coverage area: The total area of No. 1 and No. 2 warehouses covered in this project is about 30,000 square meters. Relying on the efficiency of the traditional in and out data entry mode, it is impossible to realize the real-time entry of data entry into the database.
2) The traditional wired monitoring system has complicated wiring, especially when it needs to bypass the railway line or break the road. The construction is complicated. Through the wireless MESH, the 33 kilometers high-bandwidth wireless data transmission link can be realized as far as possible, and it can meet the requirements of management data, office data, and voice at the same time. Data and video surveillance image transmission.
3) The warehouses are distributed in different locations: the data of each warehouse can be easily aggregated to the center through the wireless Mesh network, without wiring. The newly built warehouses can directly establish a wireless link with the existing Mesh network by installing a Mesh router, which is simple and convenient to expand .
Four, product introduction
4.1, RFID handheld reader
The working frequency is 860~960MHz;
256MB large-capacity data and program storage space;
Chinese handwriting input, support signature capture function;
Card reading distance: reading>1m, writing>0.5m;
Support WiFi, connect to LAN through wireless network;
Support TCP/IP wireless networking function;
Industrial-grade IP54 hardware design, durable, can be used in harsh environments;
Working temperature: -20℃–50℃, dustproof treatment for LCD and keyboard;
4.2, RFID electronic tags
The product’s leading technology, all-industrial design and outstanding features make it a comprehensive competitive advantage in various fields. The biggest feature of electronic tags is that they have the advantages of anti-collision, packaging arbitrariness, and information anti-tampering. They are widely used in logistics management and production industries.
Product performance:
Storage size: 512bit
Storage structure: 32-block, 2 bytes/block
According to the standard: UHF EPC G2
Working frequency: UH0F (860-960)
Baud rate: up to 640kbit/s
Anti-collision: Terminal Time Slicing Protocol
Unique serial number: 4(or 32-bit)
Write protection: block mode
Access key: 32-bit
Access conditions: unformatted/secret word
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