Application solutions based on UHF RFID technology in the field of food safety
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1 Overview
In recent years, food safety crises have occurred frequently, seriously affecting people’s health and causing widespread concern around the world. Food goes through multiple links from raw material procurement to processing to transportation. There are many processes, and the supervision of a certain process may cause serious food safety and cause irreversible safety incidents.
In order to protect the health of consumers, reduce the occurrence of food safety incidents, and reduce the resulting losses, Shenzhen Quanshunhong Technology Co., Ltd., as the agent of Trimble&ThingMagic, is based on ThingMagic UHFRFIDThe performance of the product is recommended to the food industry to adopt a new generation of RFID information technology to strengthen the effective management of information in the key links of food production, storage, packaging, and sales. Through the monitoring and management of this information, early warning and traceability can be realized. Prevent and construct food safety issues. Once a problem occurs, it can be quickly traced back to the source, and the further expansion of the situation can be contained in a timely manner.
2. RFID technology
RFID is the abbreviation of radio frequency identification technology, and its basic working principle is that the readerelectronic labelSending a radio frequency signal, the electronic tag will generate an induced current to obtain energy after entering the identification area of the radio frequency signal, and send the information stored in the electronic tag through the antenna, and the reader will decode the received electronic tag information using a decoder board. Then the decoded label information is transmitted to the computer through the network interface.
The characteristic of RFID technology is that the electronic tags used to mark items have a globally unique ID number, which is similar to assigning a separate “ID card” to each item. Therefore, with the help of its global uniqueness, it can be used to identify each item. The independent collection of a single product information, so as to achieve the goals of single product anti-counterfeiting, anti-channeling and quality traceability; at the same time, this technology has the characteristics of good environmental adaptability, strong penetrating power, oil resistance and easy installation, which is the implementation of the system And construction provides a good technical guarantee.
3. System design
The implementation of RFID technology in the field of food safety, the establishment of a food anti-counterfeiting and quality traceability management system, to realize the product anti-counterfeiting function, and the authenticity of the product can be inquired through the global unique ID number; it has the anti-channeling management function and uses RFID reading equipment , By reading the information of the electronic tag, the market flow of the product can be accurately understood; at the same time, the consumer can trace the detailed information of the purchased product through the RFID reading device, which truly meets the consumer demand for rest assured purchase.
3.1 System framework diagram
The framework diagram of the application system in the field of food safety based on RFID technology is as follows:
The system has functions such as information entry, automatic identification, data communication, query, statistics, analysis, etc.; at the same time, it has features such as easy expansion and easy upgrade.
Through the implementation of the whole set of systems, software and hardware parts, the goal of anti-counterfeiting quality traceability is truly achieved. While ensuring food safety and increasing social benefits, it also enhances the company’s brand image and product added value, regulates the market for distributors, and guarantees the growth of the distribution market. Fairness, enhance channel dealers’ loyalty to the corporate brand, win consumers’ trust in the brand, and enhance the product’s image in the market and users’ minds, so that the company’s sales market will continue to grow and gain market benefits.
3.2, system function
The food safety management system based on RFID technology has the following functions:
Entry information
This link is completed in the packaging workshop. When the food is produced and packaged, the production time, processing method, production location and other information of the food are written into the electronic label through the card issuer, and then the electronic label is fixed to the food. Realize the binding of electronic tags and food information, and at the same time, the information will be uploaded to the central server of the RFID system by the management computer.
In and out of warehouse
When the food flows to the warehouse or physical store for entry and exit, the RFID channel-type reading device installed at the entrance and exit of the warehouse obtains all the label information on the food, and manages the entry and exit of the food through the food information bound to the label message. The RFID channel-type reading device supports the installation of four antennas to ensure that RFID electronic tags are not missed.
Anti-counterfeiting and quality traceability
This function is mainly designed for consumers. Therefore, RFID readout devices will be arranged in physical stores, directly-operated stores or other dealership stores. This equipment will depend on the size of the dealership store and other factors. , RFID handset or RFID tablet.
Deploy RFID reading equipment in each dealership store. After consumers have purchased a satisfactory product, they can use the equipment to read the electronic label information on the product, and query the product from production to processing through the RFID system center server. The detailed information in the life cycle process can easily and quickly identify the authenticity and quality information of the purchased product.
4. Selection of key equipment
RFID technology is superior to other technologies due to its uniqueness, large storage capacity, and non-copyability. It plays a prominent role in the field of anti-counterfeiting and quality traceability, and provides more protection for food safety.
In this application, RFID technology collects basic data. Therefore, RFID is also more critical to the accuracy of data acquisition. At different nodes, the number of tags that need to be read, the application environment is different, and the RFID equipment selected is also different. In the application of this system, the core is the RFID channel type reading device and the RFID terminal reading and writing device.
4.1 RFID channel reading
Channel-type reading equipment is mainly deployed at the entrance and exit of each warehouse, and it is necessary to quickly and accurately collect food label information in and out.
ThingMagic M6 is a four-channel UHF RFID reader. It has a high-speed reading capability of 750 tags/sec. It can be connected to 4 antennas at the same time to work. It has a wider coverage and fast data collection without leakage. read. At the same time, ThingMagic M6 has super anti-interference ability, can adapt to various harsh industrial environments, supports WIFI connection, and can be more easily and flexibly deployed in warehouse applications.
For detailed parameters of ThingMagic M6 UHF four-channel UHF RFID reader, please click: http://www.fuwit.com/Products/RFID_M6.html
4.2 Terminal equipment
In this application, the terminal device is mainly used for food information traceability and mobile collection of information. It involves more functions and a wide range of applications, which places higher requirements on the RFID reading module in the device.
ThingMagic M6e-Micro, a UHF RFID mold with ultra-small module structure design and excellent “quick search algorithm”, can be embedded in a variety of commonly used handheld and portable devices. It has a reading speed of up to 750 tags/sec, low power consumption, and quick response after receiving instructions.
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