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1. Introduction to RFID
The radio frequency automatic identification system adopts advanced electronic technology, radio frequency technology, computer technology and network technology. After processing the collected electronic label information in real time, it can be transmitted to the production dispatch center or enterprise intelligent management system through the computer network. It is mainly composed of three parts: an electronic tag, a reading (writing) device and an antenna.
Electronic tag: The internal memory of the tag contains information such as the identification code information or technical parameters of the identified object, and it is installed at the appropriate part of the identified object. In addition to fixed information in the electronic tag of the identified object, dynamic information that changes frequently can also be stored according to customer needs.
Reader: Mainly includes reading (writing) device host, antenna and automatic identification software, etc. It is installed on the passage through which the identified object passes or the necessary data collection point. The data information collected by the reading (writing) device mainly includes: identification code information of the object to be identified, such as product model, product serial number, manufacturing time, and other information to be loaded. At the same time, write other necessary data into the electronic label according to application needs.
Its working principle is shown in the figure:
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Due to the small size, large capacity, long life, and reusability of RFID tags, it can support fast reading and writing, multi-eye identification reading, non-visual identification, mobile identification, positioning and long-term tracking management. Therefore, in recent years, RFID technology has been continuously combined with Internet, communication and other technologies, and has been applied to many fields such as industrial automation, commercial automation, transportation, logistics, supply chain management, public information services, etc., gradually realizing global item tracking Sharing with information, greatly improving management and operation efficiency, and reducing costs, RFID technology is considered to be one of the most promising information technologies in the 21st century.
2. Demand analysis
Product style: Due to the wide variety of medicines and their different states, it is unrealistic to label a single product during the production process. Reason 1: Because of the large-scale production, the variety and quantity are large, and the cost is too high. Two: Some medicines may affect the sending and receiving of radio frequency signals. Therefore, according to the product style of your factory, we choose the labeling when packing the medicine production line.
Safety: Since food and drug safety is a key issue that people have always been concerned about, although the level of medical care is constantly improving, accidents such as using the wrong medicine and substandard medicine still occur from time to time. Every year, at least 200,000 people in my country use the wrong medicine, Deaths due to improper medication, unqualified medications account for 6%-11% of the number of deaths, and 10% of daily emergency cases are caused by medication errors. After RFID technology is applied to drug coding, the safety of drugs will be further protected, which will greatly enhance the reputation and influence of drug manufacturers.
Quick response QR: Different from other manufacturing companies, pharmaceutical manufacturers have higher requirements for rapid manufacturing. They must plan ahead and take them as needed, but this increases the difficulty of warehouse management, and the data information of the warehouse must be It has fast collection capabilities and can react quickly to the collected data at the same time. In this way, the efficiency of manufacturing can be greatly improved. The improvement of efficiency must be based on real and reliable data and corresponding processing of the data. Therefore, the authenticity and reliability of the data is an important part of the company’s current efforts. , RFID technology was born for the fast and accurate collection of data.
Anti-counterfeiting: According to a recent report by the World Health Organization, the proportion of global counterfeit medicines has exceeded 10% of the circulation of medicines. The global sales of counterfeit medicines have exceeded 32 billion U.S. dollars, and 60% of counterfeit medicines are in developing countries. Therefore, the country continuously regulates the drug market and strengthens the supervision and management of drugs, so that patients can use qualified drugs safely and securely. Through the establishment of a drug coding system for unified management, the supervision of drugs is strengthened.
The statistical table specification of drug coding involves coding carriers. The frequently used carriers have one-dimensional and two-dimensional barcodes, which have the advantage of low cost. In addition, two-dimensional codes also have the characteristics of large information storage capacity and the ability to record various information in detail. RFID technology uses electronic tags as the carrier of encoding, so that each box or small package of medicine can be uniquely coded. Compared with the one-dimensional bar code and two-dimensional bar code of the carrier formed by simple printing, because it can not be changed at will, and can be multiple encrypted, it can prevent duplication and ensure safety. In terms of pharmaceuticals, anti-counterfeiting, and regulating the market, the identity identification carried by the electronic label pasted on the drug is unique, which can be used to query information, but also can be used to effectively curb the proliferation of counterfeit and inferior products, so that counterfeit drugs flood the market. Improved.
This not only improves the production management efficiency of the enterprise, but also prevents those small workshops that use the name of the branded enterprise or use the “edge ball” to produce counterfeit and inferior products, and eliminate the phenomenon of enterprise reputation and image damage.
Tracking and tracing: The use of electronic tags can be used to monitor the entire process in real time, and drugs from the storage of raw materials, production, product storage, circulation and use can all be supervised in an all-round way. Especially when medicines are automatically packaged, the reader/writer installed in the production line can automatically code the electronic label of each medicine and transmit the information of each medicine to the database. In the process of circulation, intermediate information (such as packer number, quality inspector number, etc.) can be recorded at any time to implement full-line supervision. In this way, in the whole process of packaging, leaving factory, warehousing, circulation, and use, the problem of real-time recording, tracking and tracing of medicines can be solved by using electronic tags for the whole process of recording.
Production management: The superiority of RFID technology allows pharmaceutical companies to strengthen their own drug production monitoring and management. Using electronic tags, drugs can be identified at any link in the manufacturing, warehouse, and distribution processes, and they can also be used in the supply chain. All nodes monitor the medicines, accurately process the collected information, and even accurately formulate the batch size. With the help of RFID, medical delivery can realize automated picking, improve operational efficiency and accuracy, and reduce the error rate of goods picking to almost zero, reduce the labor intensity of employees, and greatly improve the safety of medicines. At the same time, it provides fast and accurate reference data for the production planning, warehouse management, supply chain management, and logistics management of the enterprise decision-making level. Improve the efficiency of all aspects of enterprise production management.
Three, system process and program overview
3.1 Imprint
When the production order is issued, the label printer retrieves the order data (such as the name of the garment, number of pieces, style, color, etc.), and prints the corresponding label according to the number of boxes (such as 10 products in one box). The label can be Store the information corresponding to 10 products (the corresponding data is the style, color and other related information of the 10 pieces of clothing), and it can also exist in the form of numbering established by the manufacturer, which acts as a bridge to correspond to the product information of the back-end database.
3.2 Packing
According to the product packing specifications, pack the given quantity.
3.3 Box labeling
Stick the printed labels on the boxes where the clothes are packed.
3.4 Warehousing
The advantages of multi-target recognition of RFID are very obvious when entering the warehouse. The reader antenna is arranged at the door of the warehouse, and it can collect information quickly and accurately whether it is a single box or multiple boxes. You can also print a list of products in the warehouse.
3.5 Inventory
The completion of the inventory can be carried out by means of high-frequency handsets, and in order to save costs, it can also be carried out in the form of a fixed reader/writer. The latter can move the product out of the warehouse with a trailer, and then push the product into the warehouse with the reader working, so that the manpower required and the warehouse space are relatively large.
3.6 Out of the warehouse and print out the list of products out of the warehouse
According to the customer’s delivery date, the delivery must be carried out. The product is shipped out of the warehouse and then loaded into a truck. When it is out of the warehouse, the system can read the number of boxes of the product out of the warehouse and other information, ensuring the accuracy and speed of shipment.Then you can print out the shipping list and compare the customer’s order to check whether there is any over-installation, missing installation, wrong installation, etc.
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Flow chart of single product labeling system
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Packing and labeling system flow chart
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