Application of RFID technology in aquatic product logistics traceability system
The Application of RFID Technology in the Traceability System for Aquatic Products
Aquatic products refer to the total number of marine and freshwater fishery organisms and their products.
It mainly includes fish, shrimp, crab, shellfish, etc. Aquatic products, especially
Seafood fish is delicious and rich in high-quality protein and Omega-3 fats
fatty acids and DHA, etc., are deeply loved by consumers, and their prices
The price ranges from tens to hundreds of yuan per pound. Generally, aquatic products farmed on the seashore are not
The original ecological aquatic products caught in the sea have high nutritional value, even if they are
The quality levels of aquatic products farmed on the border are also uneven, but their shapes are basically the same.
This is the same. However, consumers have little knowledge about the origins of various fish species and basically
This distinction is based on the place of origin on the label, and there is no way to distinguish it.
traceability information, which leads to the inability to obtain the quality of purchased aquatic products.
Guarantee [1]
.
The processing, storage, transportation and sales of aquatic products cold chain logistics
All festivals are required to be carried out under refrigerated or frozen conditions, but manufacturers and consumers
There is a lack of strict supervision on this, and regulatory authorities are unable to regulate aquatic product manufacturers.
and fishing companies for supervision, which is not conducive to manufacturers producing high-quality
quantity of product. The quality and safety of aquatic products is related to the development of my country’s aquatic products industry.
Sustainable development must be achieved through effective supervision, technological innovation and quality
control measures to ensure. The traceability system establishes a transparent traceability system for each aquatic product.
Identity files enable the collection and tracking of data in all aspects of cold chain logistics.
Provide new solutions to aquatic product quality and safety issues. Therefore, build
It is imperative to establish a traceability system for Lishui products. Key Points of RFID Technology
It is able to provide unique identification for goods and store relevant information, which will
The application of RFID technology to the aquatic product logistics traceability system is undoubtedly a guarantee
The quality and safety of aquatic products and the realization of traceability throughout the entire industry chain have the greatest potential
solution.
This article proposes a logistics traceability of aquatic products based on RFID technology
system, which covers the production, processing, warehousing, and
Track goods in transportation and sales, and collect real-time data from all links
The traceability information of aquatic products is stored in RFID tags and passed through the physical
Real-time monitoring using flow information technology to ensure the quality and safety of aquatic products.

1 RFID technology
Radio Frequency Identification,
RFID) is a contactless automatic identification technology that combines micro
RFID tags or chips are attached to target objects using radio frequency signals
To achieve automatic identification and tracking of these objects. RFID Information Department
The system usually consists of three main components, namely electronic tags, reading and writing
servers and computer hosts. Electronic tags follow the goods and are used for storage related
Traceability information. The reader communicates with the electronic tag through a wireless connection and can
To read or write information on tags, readers are usually designed to be handheld
fixed or fixed equipment
. The working principle of RFID is that when the tag enters a
When in a radio frequency magnetic field, it will receive the radio frequency emitted from the reader/writer.
signal and uses the sensed current to transmit and store in the chip
product information. The reader/writer reads and decodes this information and then
transmitted to a central system for further data processing. with traditional strips
Compared with tags such as graphic codes, RFID tags have some significant advantages.
Including being able to adapt to different environments, being waterproof and readable and writable
wait. Therefore, the use of RFID tags during aquaculture and transportation
The signature as a traceability identifier is a convenient and reliable way that can adapt to
The growth environment of aquatic products and effectively collect relevant information [3]. Yan Bo et al [4]
An aquatic product traceability platform based on RFID technology was constructed. This skill
The application scope of the technology covers the entire aquatic product supply chain, including breeding,
Processing, logistics and transportation, etc., each link uses RFID tags to record
Key information is recorded. If consumers want to conduct traceability inquiries, they only need to scan the product
Just click the barcode on the product packaging.

2 Application of RFID technology in all aspects of the traceability system
2.1 Breeding link
Aquaculture finished products are mainly fish, shrimp, and crabs, each of which
Have different characteristics and therefore need to be identified in different ways.
For those who are smaller, share growing conditions in similar growing environments, and have
For aquatic products with small differences between individuals, it is usually inconvenient to test each individual.
Rows are marked one by one. In this case, batch-level marking methods are often used.
For example, identification based on the growth environment number and seed batch. And for the body
For larger fish, implantable RFID tags can be injected into the body
Marked inside, its length and diameter are approximately 10 mm and 2 mm respectively;
For identification of crabs such as Chinese mitten crab, you can choose to use RFID waterproof labels
Tags are tied to straw ropes or pasted on their shells for identification. The quality and safety issues of aquatic products are analyzed, and a traceability system for aquatic products is established by introducing the concept of the Internet of Things. This traceability system has been practically applied in the task of transporting Chinese mitten crab seeds, using RFID
Technology and QR codes identified Chinese mitten crab fry and constructed
An intelligent IoT system was developed to monitor and manage the sperm of crabs.
The breeding process is detailed and a full dynamic traceability system is formed. Farmers need to record every day
Record breeding logs, including seed information (seed provider, seed batch, etc.)
and breeding information (breeding company, farm air temperature, humidity and light intensity
temperature, water temperature and water quality monitoring, feed input, fishery drug injection, etc.). at the same time,
Farmers and inspection and quarantine departments need to submit breeding logs and inspection and quarantine letters respectively.
Information (monitoring of pollutants and epidemics) is uploaded to the central database.

2.2 Processing links
The quality and safety of aquatic products are affected by operating practices,
The influence of factors such as process flow and working environment. Processing enterprises support
After aquaculture enterprises purchase aquaculture finished products that have been marked with RFID, they must first
Read the quality information related to the production process on the RFID electronic tag, and
On this basis, the aquatic products are graded according to their quality and size, and based on
Different grades are processed according to the corresponding process, and the finished product is finally packaged [7]
.
In this link, processing enterprises need to record processing information, including processing
suppliers, processing technology and processing environment, etc., upload this information to the center
Database and synchronized to traceability cloud service. Processed aquatic products are being packaged
During the packing process, the processing company will determine the actual weight and packing date.
and other information to generate RFID box tags. Each box label is used to uniquely identify
Identify each batch of products, and the packers will label these labels when packing the boxes
Attached to shipping box

2.3 Warehousing link
After RFID technology is applied to warehousing, traditional aquatic product warehouses
Transforming warehousing into an information warehousing process based on RFID technology can improve
High operational efficiency, reduce errors, and provide real-time tracking and management. Out
During the warehousing process, RFID tags are attached to the inventory goods.
Write item-related information (including product name, production batch and supply
merchants, etc.), the RFID reader installed at the entrance and exit of the warehouse scans
The RFID tag on the goods can read all the information of the goods. Once
RFID data is verified and recorded, the database is updated in a timely manner, and goods are automatically
Automatically complete the warehouse entry and exit operations; during the inventory process, aquatic products need to be recorded
Introduce RFID for warehouse entry and exit time, warehouse number, environment and other information
After technology, using handheld RFID readers, managers only need to
The pre-specified path can be completed quickly by patrolling the warehouse once.
Inventory tasks. Not only does this significantly improve efficiency, it also reduces the time required for inventory
The time was shortened from several days to only dozens of minutes, and work was also avoided.
Personnel need to move goods or perform inventory work in low temperature environment for a long time
Inconvenience [9-10]
.
2.4 Refrigerated transportation link
The control of the refrigeration environment during the transportation of aquatic products is relatively complex.
If the refrigeration temperature fluctuates greatly or the transportation cycle is too long, it may cause
Cause aquatic products to rot and deteriorate. Currently, most refrigerated cargo shipments are monitored
It only records the vehicle's journey information and cannot monitor and record it in real time.
Temperature conditions of aquatic products during transportation. Therefore, in order to ensure that aquatic products
Stable low-temperature environment during transportation, adding RFID electronic tags
Installing a temperature sensor can collect temperature information in the cabin in real time.
Supervise the transportation temperature during transportation through logistics monitoring computers and record these
This information is transferred to the central database, and the system will
Automatically trigger the alarm and take immediate measures to ensure the quality and safety of aquatic products
Complete . In addition, RFID tags can be used in conjunction with positioning systems to achieve
Real-time monitoring of the accurate location and transportation progress of aquatic products is helpful for transportation companies
The company will adjust and optimize routes when necessary to avoid traffic congestion and improve transportation
efficiency .
2.5 Sales link
RFID technology has many applications in large supermarket sales. ①Library
Deposit management. Merchants can fix an RFID reader on top of each container
device to read the information in the RFID tags on product packaging, allowing supermarkets to implement
Track inventory at all times. When the stock of aquatic products falls below a certain threshold, the system automatically
Automatically generate orders to ensure timely replenishment. ②Self-service checkout. Supermarkets are OK
Introducing a self-checkout system where customers can scan RFID tags themselves
products and check out, thereby speeding up checkout and reducing queue time [13]
.
③Expired product management. For items that are perishable or have limited shelf life,
Supermarkets can use RFID tags to track their shelf life. system
It can automatically alert employees so that these products can be removed from the shelves or discounted in time.
to reduce losses. ④Anti-theft and safety. RFID tags can be used to prevent
Stop merchandise theft. If someone tries to take away unpaid merchandise from a supermarket,
An RFID reader at the door will trigger an alarm. Additionally, RFID can track
Track the location of merchandise to prevent internal theft.
2.6 Traceability link
Aquaculture finished products or processed products are sold in farmers’ markets and large supermarkets
Or sold in retail stores, sellers can use RFID electronic scales or RFID
The reader/writer reads the RFID tags on the farmed or processed products.
Then connect to the aquatic product traceability cloud server for encoding and parsing to
Gather relevant information. This information will be printed on the QR code using thermal technology
On the ticket, the ticket contains the traceability information of the product. Consumers are buying
After buying aquaculture or processed products, you can use a smart terminal to scan the ticket
According to the QR code on the screen to obtain a specific traceability code, trace through this
code, they can view detailed information about seafood, including products
Name, manufacturer (breeder, wholesaler, seller), production batch,
Traceability information such as fishing time, storage conditions, and inspection and quarantine results [14]
.
RFID technology can be used in all aspects of the aquatic product logistics traceability system.
Real-time information collection and monitoring to ensure the quality of aquatic products. but
Yes, RFID technology faces some problems during its promotion and application.
① The cost of RFID tags is relatively high and needs to be further reduced to improve
Competitiveness. ② RFID technology currently lacks a unified set of standards.
Such as information content and process, readers, tags, etc., need to establish consistency
standards to promote industry development. ③ The accuracy of the RFID reader cannot be
Guaranteed 100%, its reading accuracy is affected by many factors including
Environmental conditions, the material of the item attached to the label and the number of reads at one time
wait. Therefore, a large-scale increase in R&D funding is also needed to improve technological
flat. In addition, the aquatic product logistics traceability system is a complex system containing many subsystems. In addition to introducing advanced information technology into the system, our country
system, it is also necessary to ensure the coordination and cooperation between the various subsystems within the traceability system.
Only in this way can the effectiveness of the aquatic product logistics traceability system be maximized.
Solve the problem of market information asymmetry