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1. System significance
The RFID intelligent management system of Yitong warehousing materials has the characteristics of high security, high responsibility, high convenience, and unattended materials management, which basically solves the current domestic traditional management methods. Under traditional management methods, on the one hand, it is easy to neglect management, resulting in material backlogs and shortages at critical moments. On the other hand, due to unattended materials, materials are used randomly and cost control is difficult. In addition, they cannot effectively prevent theft and affect materials. Safe operation of the facility. Through the RFID intelligent management system of warehousing materials, the cost and inventory can be effectively controlled, and it is safe.
The introduction of this project will produce very good social and corporate benefits:
1. Good development prospects. It is the first to enter the field of material intelligent information management in China. The industry is developing rapidly. The country attaches great importance to the safe use and management of materials and equipment in high-end equipment manufacturing. The user demand is large, and there are clear user expressions of project wishes. It can be used as a product booster and further promoted to the country’s high-end In the equipment manufacturing industry market, the promotion and application of RFID technology in high-end industries will certainly have far-reaching social significance and good application prospects.
2. The technology is mature and advanced. RFID technology is adopted to realize intelligent control and management through system integration, automatic reading and writing, human-computer interaction, sound and light warning and other functions.
3. Improve efficiency and cut costs. Through the introduction of projects, it is possible to realize unattended operation in the true sense, automatic inventory warning of the system, control overstocking of purchases or shortage of key spare parts, and effectively reduce labor costs and material procurement costs.
4. Unified platform and centralized management. Through the material RFID intelligent management system platform, it is possible to realize the unified management of the materials of each branch unit, centralized procurement and deployment, and greatly improve the transparency of management and the ability of unified procurement and deployment.
5. Safety early warning and retrospective management. Material electronic tag identity authentication, illegal receipt or transfer automatically activates sound and light warning, key materials are written into information through electronic tags, automatically traced, and electronic files are recorded, effectively improving the security and traceability of material application.
6. Promote the universal application of RFID technology. RFID long-distance reading and automatic sensing technology make it possible for many unachievable needs before, and it is currently widely used in many high-end projects. Through our projects, it can also be obtained at low cost and good applicability in ordinary material management. Verification, allowing RFID technology to be more widely used in society.
2. System research content and technical route
1. Project research and development content and technical key:
Yitong material RFID intelligent management system, realizes 24 hours all-round automatic sending and receiving and early warning control management of materials. The main research content involves RFID working frequency, antenna coverage, sound and light warning, data communication and data interaction between the General Administration and the 200 substation online platform , Realization of several key technologies of software and hardware integration.
1) Working frequency: The working frequency of the electronic tag used in this project is in the ultra-high frequency range. Because the high frequency propagates at wave speed, the data transmission rate is relatively high, and the communication quality is good, but it is necessary to select and match the types of electronic tags in different ranges according to the size of the user area to meet the needs of different user environments.
2) RFID antenna: The antenna receives or radiates the radio frequency power of the radio transceiver in the form of electromagnetic waves. Due to the limitation of the application and the customer’s matching requirements, the direction of the antenna, the shape of the antenna, the connection method of the antenna, etc. Have different requirements.
3) Acousto-optic early warning: Consider the integration of an early-warning mechanism with the information system, the system is sensed through the electronic tag, and the command is automatically triggered to the acousto-optic early warning device to achieve the automatic alarm function.
4) Online platform: It is necessary to solve the problems of multi-site data real-time communication and data interaction. The choice of platform technology and implementation methods need to be studied and confirmed. Data integrity and interactivity are mainly considered. Given that multiple RFID tags work at the same frequency, if multi-address access control is not adopted Mechanism, the information will conflict during the transmission process, resulting in failure to read the information. Therefore, it is necessary to consider the choice of tree bifurcation algorithm equipment during sampling to ensure data integrity.
5) System integration: mainly software and hardware integration. The hardware involved mainly includes RFID readers, RFID antennas, RFID collectors, acousto-optic warning devices and touch displays. The equipment provider provides the interface to complete the research; another consideration should be given as much as possible Methods such as wireless and GPRS to avoid the risk of wiring the power station.
6) RFID middleware selection processing: The original data collected by RFID equipment must pass through the RFID middleware before it can be received by the PC or terminal. After the middleware is extracted, decrypted, filtered, and formatted, it is finally imported into the enterprise information management system. The project considers directly purchasing middleware that supports mainstream RFID reading and writing equipment, reducing the difficulty of developing the underlying application architecture and saving development time, but it is necessary to do a good job in the selection of middleware.
2. System features and innovations:
This system is led by a software system, with the help of RFID technology and equipment to achieve the goal of intelligent and automated management, change the single manual operation mode of the software system, and further replace the bar code scanning method, focusing on the refinement of materials and equipment in the high-end equipment manufacturing industry , Realize unattended automated management, reduce operating costs and risks, and greatly improve work efficiency. The main innovations compared with common barcode management systems and ERP management systems are as follows:
1. Innovation of data collection and reading methods: The software of this project collects RFID wireless radio frequency signal data transmission, which can realize long-distance and batch machine reading, replacing the general ERP system manual entry and bar code scanning and short-distance reading methods, greatly improving management efficient.
2. On-site real-time management and control method innovation: This system project uses RFID equipment to collect data in real time, and immediately corrects and reminds and controls illegal or misidentified events. It replaces the general ERP management system for data entry and control management after the event. Effectively improve corporate management capabilities and levels.
3. Innovation of intelligent automatic management method: The system project realizes 24-hour unattended management, through the RFID electronic identification of materials, the material information, responsible person information, position information, etc. are automatically stored when entering and leaving the warehouse; the inventory report data is automatically generated; Acoustic and visual alarms are automatically activated for materials that are illegally shipped out of the warehouse and below the safe amount; income receipts and reports are automatically generated through wireless data collection.
4. Innovative traceability management methods: This system project uses RFID electronic tags to stick to materials and equipment tools, write key event records during the use of materials and tools, form electronic files, and effectively trace the quality and process use of key materials. And can inquire at any time. Solve the shortcomings of poor traceability between the ERP management system and the barcode management system, and cannot read and write information repeatedly, and cannot be inquired in real time.
5. Innovative early warning methods: This system project will trigger sound and light alarms for illegal transfer of warehouses, safe quantities of materials, and unauthorized personnel entering, and they will be automatically transmitted to the console and door police, which greatly provides material management for high-end equipment manufacturing safety. General ERP management system does not have this function.
3. System function index:
1. Technical indicators
Serial number Key technology Technical index Reading and writing speed/error rate
1 Intelligent identification Using 860-960MHz frequency band over-frequency RFID technology and information system integration application Unit read and write speed: within 0.15 seconds/PCS
Error rate: within 0.1%
2 Automatic code registration of materials When materials enter the radio frequency sensing area, they are automatically registered according to the ID number. Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
3 Material automatic warehousing management Material enters the warehouse area, and automatically registers and enters the warehouse. Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
4 Material automatic withdrawal management, automatic registration of materials out of the warehouse area, reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
5 Automatic early warning of material maintenance due to set maintenance period and early warning lead time according to the material, and sound and light alarm according to the set time. Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
6 Automatic inventory management of materials Set the maximum inventory and safety inventory according to the materials, and set the early warning lead time, and perform sound and light alarms according to the set time. Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
7 Automatic pre-warning of material safety inventory Automatic pre-warning of illegal outbound, outflow of materials with abnormal instructions, through the RFID tag sensor reader, real-time automatic trigger sound and light alarm Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
8 Automatic inventory management of materials Start the inventory button, automatically read all materials in the area, and no missing assets. Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
9 Material electronic file traceability management Read and write information through electronic tags, record the circulation and use process of key materials, and automatically create material traceable electronic files. Reading and writing speed: within 0.15 seconds/PCS
Error rate: within 0.1%
10 Human-machine touch interface interaction management Integrate with the RFID system through the human-machine interface LEVI Studio Personalized customization, touch commands are responded within 1 second
2. Technical methods and routes:
This project is completely independently researched and developed by Zhuhai Yitong Information Technology Co., Ltd. It combines the company’s existing bar code and RFID system development technology, adopts the best equipment and system integration technology, is supported by a software system, and implements system management with the convenient operation and application of hardware. The automation, intelligence and platformization of the company. The system project will involve the use of the following technical content:
1) System architecture: The combination of C/S and B/S is adopted. The C/S mode is mainly adopted inside the station, and the B/S mode is adopted outside the station.
2) Development languages: C#, C++, JAVA
3) Operating platform: background PC system adopts windowsXP, windows7, mobile PDA client system adopts windowsCE, android
4) Radio frequency technology: RFID UHF radio frequency technology
5) Data transmission: two application methods: WAP and GPRS
6) Database: sql server2008
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