1 Introduction
A variety of vegetables, cucumber, tomatoes, tomato as the necessities of daily life, the security issues increasingly becoming the focus of attention. How to ensure the safety of consumption of vegetables and nutrition imminent.
RFID commonly known as electronic tags. August 8, 2007, the first anniversary of the Beijing Olympic countdown, pre-packaged food, fruit and vegetable food products, livestock products of these three categories of Olympic food using the new ID card. At present, supermarkets, public transportation IC card, as well as China's second-generation ID card, the application of this technology. For the Olympic Games, food security is a breakthrough in Olympic history. It by responding to background information system, the dynamic collection and analysis of the factors in the Olympic food production, processing, transportation and other aspects of the completion of food from source to final monitoring, and strengthen the food safety management.
Through scientific and technological achievements identification "bar code vegetables" is a comprehensive listing of the seven stores in Carrefour, Shenzhen, the Shenzhen Municipal authorities in 2006 embarked on the introduction of the world's common EU EAN bar code management system. The repository of the EAN bar code behind a detailed record of the product name, the name of the plantation companies, authentication information, place of origin or processing to drug use, quarantine detection and other information, this information through the network open to the public. Barcode like vegetables "identity card", as consumers in Shenzhen City, agricultural inspection stations on the page with the bar code to find relevant information and government supervision departments can use the Pocket PC sampling products on the market at any time. In addition, in the event of sudden food safety incident, this logo can be traced back, rapid recall of related products, tracing the causes to produce quality and accountability.
Fruit and vegetable producers in the United States, the use of RFID system to track agricultural products from picking to be shipped to the distributors and the retail business. RFID systems for the manufacturers of farm management and food safety data.
2 Application of RFID in the supply chain of vegetables in
The key to the same vegetable supply chain, and most of the agricultural supply chain including production, processing, storage, transportation and sale of five sessions to improve the fresh vegetable supply chain efficiency is how to coordinate the five links and how to improve the efficiency of each link.
Can see from the vegetable supply chain as a whole, through the use of RFID technology, the convenience of all aspects of information throughout the supply chain read into the public databases, all aspects can also easily add the corresponding link in the data. Consumers and the relevant authorities through the communication network and terminal query and retrospective.
2.1 The production processes
Production processes mainly refers to the vegetable growing base of more size and specification, such production base is generally applied to large-scale planting and intensive management conditions for the use of RFID technology. Can set a label for each block, or a variety of the land or the varieties of vegetables from planting to the whole process of packaging listed in the necessary information for timely initial information input through reading or input device, such as vegetables varieties, growth time, the name and number of the spraying of pesticides used in fertilizer, harvesting time, and even describe the characteristics of the species. Set for each category of vegetables according to the coding standards of agricultural products, a number as the unique identifier of its identity. So that the varieties of vegetables to complete the first link of the supply chain, the RFID (or radio frequency card) has been stored all of its basic information. By using data acquisition acquisition acquisition of any land vegetable varieties for farmers, and agricultural information collection, not only speed up the acquisition speed and reduced the error rate, and the POS system for agricultural products processing enterprises, the EDI e-commerce system is based on data, to provide source data for product traceability.
2.2 processing sectors
RFID tags can easily add information, can first read the information contained in the electronic tag in the processing aspects of processing enterprises according to their own needs and requirements of the relevant authorities to add the necessary information, such as processing units, processing date, processing the use of additives, packaging weight. After data enrichment and processing enterprises, origin and processing aspects of information already stored in the electronic tag, then the end consumer at the retail or wholesale market by querying the terminal check the product information, we can glance the information for after the accident retroactive easier and feasible.
2.3 storage link
Vegetables as a seasonal product, its storage environment to require a higher, especially in the case of poor storage environment, but also should reduce the storage of vegetables in the warehouse. Need storage to save the vegetables in storage before by the electronic tag data read, the packaging specifications, packaging weight automatically read into the computer, processed by a computer form inventory warehouse characteristics, and output storage location, shelves, cargo space command. Inventory, the terminal to read electronic tags on the vegetable packaging, and record the amount of inventory in real time. The site inventory is completed, the inventory personnel to confirm the amount of inventory and upload it to the back-end database. Back-end database based on the information in real-time upload, data and systems, the number of any difference, the system will automatically generate the inventories differences in the table, and then the data submitted to higher inventory or instructions terminal repeat. A library without too much human intervention can automatically change the inventory data.
The use of RFID technology, greatly accelerate the warehouse and stock inventory speed, lower error rates, but also for the use of computers for inventory management, improve the degree of automation of warehouse management convenience.
2.4 transport link
The application of RFID technology in the transport links of fresh vegetables mainly for goods in transit monitoring, tracking and crossing check. RFID and GPS (Global Positioning System) for logistics companies to provide real-time monitoring and tracking service, computer network owners can easily know their goods have arrived at what position, if substitution, etc. . Checked after some crossing, check the unit there is no need to open the vegetable packaging, electronic tag reader terminal can know the specific content of packaging, greatly improving the speed of the crossing to check and relieve the pressure of crossing crowded.
2.5 The sale of part of
RFID technology in retail processes reflect the units within the retail store or supermarket packaging vegetables theft, vegetables valid monitoring and temporary sales. RFID anti-theft technology is the electronic tag placed in the packaging of goods, real-time monitoring of the labels of all kinds of goods in the store by the computer system through the site reading and other facilities. In this way, retailers will be able to safely open-shelf sales. Intelligent electronic labels can also be monitored for some period of validity of time-sensitive goods, such as certain foods or drugs to be tracked, once it exceeds its expiration date, the label will be issued a warning. Necessary, such as holiday sales peak, but also can be RFID terminal as cash cash registers, automatic scanning and billing, in order to ease the pressure on customer sales cashier checkout.
Application examples in the vegetable supply chain in the United States
In order to RFID data into the information available, manufacturers In SyncSoftware synchronization software development of the green track food security solutions (GreenTrace Food Safety Solution) software platform.
In Sync Software Sync software for applications to provide systems integration services. Green tracking food safety solutions used for the farm operator visibility to help managers judge to stay anywhere in the product; If return is the case, can be traced back tracking, and analysis of operational efficiency. This manufacturer uses a number of manufacturers EPCGen2RFID tag and reader.
Typically, the fruit and vegetable production Chamber of Commerce is a detailed record of their products to close the pick process. First of all, the staff will fill out the farmers used to identify workers in the form, fill in the content including each person's health situation and any information that may affect agricultural products picked. Then, the same form of a written record to track agricultural products picked the region and the time it takes.
Green tracking food safety solutions eliminate many filled out by hand in the picking process steps. Now, when picking after the staff can automatically obtain the relevant electronic data without having to manually record the time and location. Manufacturer to the EPCGen2RFID tag shown in the corrugated box, cardboard boxes and reusable plastic containers and pallets, as shown in Figure. These loading tool to the picking point, the workers use to run In the Sync software, equipped with GPS-enabled handheld RFID reader to read the label of a container ID number, then enter data into a cell phone, such as personal information and the workplace .
Corrugated boxes with RFID tags
When the containers were filled with products and pallet loading, workers once again scan the container label. Handheld RFID data, together with the GPS location will be connected via the cellular network or satellite communications sent to the company's back-end systems. When the product reaches the treatment plant of the manufacturer, were weighed, cooling and other transport preparations, RFID readers will record each process. First, a fixed RFID reader weighing the capture container tag ID number, to confirm that these products have been weighed. The tag ID number, date, time and weight was recorded to the back-end system. When a container enters or leave the cold room, the one installed in the cooling chamber door fixed reader to read the tag again.
Fruit or vegetable has a different approach: such as lettuce, bagged packaging, can also be refrigerated, or bulk sales. The treated product is printed on the bags on the batch number, batch number and container RFID tag. Container and processed products before loading onto a transport vehicle, the last scan time. The manufacturer also plans to temperature sensors in the future. Then, the sensor container RFID tags wired connection; if the product temperature is hot or cold, over the system pre-set limit, the system automatically sends e-mail notification producers. The system can also set limits, monitoring and control products in the cooling chamber and the outside temperature and time in which products can be put in the storage room how long or what temperature must be saved, different products.
If found contaminated, manufacturers can take advantage of the green track food security solutions backtracking product picking and processing. If a packet received contaminated lettuce can be traced back to its pre-packaged where the container. When manufacturers receive the retailer sent the batch number of the contaminated products, the green tracking food safety solutions software, positioning store all containers in this batch; This allows the manufacturer to determine the location of the product may then Identify the same time, other products may appear in the same place.
4 RFID for Olympic vegetables escort
A bar code label are close to the Olympic Village, each of a vegetable, which is a vegetable of the electronic identity card, it records the birthplace and production and processing and other related information of each one of vegetables. These electronic identity cards, the use of advanced RFID (non-contact radio frequency identification) technology, it will monitor Olympic food tracking. In other words, during the 2008 Beijing Olympic Games, athletes credit card dining, through the badge reader device to read out to eat what food, food from, including the selected recipes, food and raw materials, the food distribution centers, production processing enterprises, and ultimately the source of farm planting and breeding information. Then from the table to the farmland, which aspects of a problem will be found quickly, and the ability to take timely control measures, the maximum elimination of hazards.
As shown in the box just completed package 3 cucumber, and is marked with a label. It appears that this is not make a difference with all the cucumber, how to prove it safe? Secret in the above bar code next to the Beijing Municipal Bureau of Agriculture food quality and safety of agricultural products traceability system machine, picked up this box of cucumbers to align the bar code scan port, the screen immediately shows the three types of three cucumber : producers of information, product information, field biographical information. Biographical information of open field, showing: May 3 planting, the cultivation area of 0.8 acres, the density of 140 × 30 cm; fertilizer information, May 3 chicken manure, fertilizer, May 16, June 11, 6 20 March fertilization ⋯ ⋯ pesticide application, chlorothalonil on May 20, Pi insects morpholine, June 2 Qingyuan Po, Pi insects morpholine # 8943; # 8943; information, can be traced back to any time and place, which even down to the numbered greenhouse planting base. Bar code as the identity card of the vegetables, which is a vegetables traceability credit records. If a problem occurs, the traceability of information will ensure in the shortest time to identify the problems, for the first time to solve. The box of packing finished out of the base of the vegetables, and began the process of delivery to the designated venues to the Olympic Games.
With the label of cucumber
Refrigerated car during transport, purple cabbage, lettuce, broccoli, celery, broccoli have also been caring for the care, global positioning satellite GPS positioning system and temperature and humidity recording control, so that Olympic vegetable production base to the processing enterprises, logistics and distribution center to the Olympic Village, the whole process of monitoring. GPS positioning system monitoring vehicles to the track, if you exceed the requirements of the route, it will automatically alarm. In fact, Beijing in 2005 to start the Olympic Games Food Safety Action Plan, the current Olympic food safety traceability system has been completed covering the first five Olympic agricultural products (vegetables) supply companies, 41 processing and distribution enterprises and the construction of 10 supermarkets and Run, aquatic consumption of agricultural products retrospective pilot in seven companies. It is understood that after the end of the Olympic Games, Olympic vegetable supply system in all directions to enhance the overall level of the Beijing Vegetable production safety, transportation, processing and storage, fresh vegetable such as Beijing will continue to strengthen the construction of production bases and control, in order to grasp the source of the food safety. At present, Beijing has been implemented on 45 categories of food the focus of monitoring the formation of a surveillance network covering various aspects of, and lay the foundation for the Olympic food safety. Monitor the overall level of food safety in Beijing to further improve after 2008, Beijing will not be reduced since the end of the Olympic Games in Beijing food safety standards, the public will at all times to enjoy the Olympic athletes during the Olympic banquet.
5 Conclusion
The application of RFID technology in supply chain of fresh vegetables can not only ensure the quality of the supply chain data exchange, but also to achieve full transparency of the food source was traced and vegetable supply chain. This is because RFID systems through separate identities and storage history as a vegetable product, which provides a detailed and unique perspective of the supply chain. Ensure that the history of the source of the vegetable products reach the supermarket shelves and restaurant kitchens are clear. I believe RFID technology in the Olympic Games during the test chopper must be reclaimed a broader world!