Why do containers use two-dimensional code seal?

Industry News, 09-28-2018

In recent years, with the rapid development of China's foreign trade, the port container throughput continues to improve, which also puts forward higher requirements for the efficiency of inbound container. Although the application of intelligent bayonet technology meets the requirements to a certain extent, the manual operation method is still used in the lead sealing inspection of heavy containers at the entrance of bayonet, which has the disadvantages of high cost, low efficiency and high safety risk. By using a new type of lead seal based on two-dimensional code technology and installing an intelligent identification system with image acquisition function at the bayonet, the container two-dimensional code lead seal and intelligent identification system can automatically collect and identify the lead seal information, realize the automatic inspection function of container heavy box lead seal, and improve the information and automation level of port logistics.
1.1 two-dimensional code
The two-dimensional code is a kind of code that records the information of data symbols by using a certain geometric figure to be distributed in black and white in the plane according to the regulations. In coding, the concept of "0 and 1" bitstream, which forms the internal logic foundation of computer, is used cleverly to express the numerical information of characters by several geometric forms corresponding to binary, and to realize the automatic processing of information by the automatic reading of image input device or photoelectric scanning device. Two dimensional code can be compiled according to the number of information content and different application function requirements.
1.2 two dimensional code lead seal
In the process of container transportation, the lead seal commonly used is the traditional high-quality lead seal. The lead seal generally consists of a lock body and a lock rod, in which the lock body is the main information bearing place, usually printing a number of codes or barcodes, often cylindrical. When the high protection lead seal is used, insert the lock rod into the lock body and press it tightly. It is easy to use, firm, not easy to be oxidized, rusted and damaged. The two-dimensional code seal completely inherits the characteristics of the traditional high protection seal. It has not made great changes in structure, but still consists of two parts: the lock body and the lock rod. The lock body part sprays the two-dimensional code pattern according to the required seal number, and the two-dimensional code information can be encrypted to prevent counterfeiting.
1.3 economy of two dimensional code lead seal
With the development of port logistics, the demand for improving the security degree of goods in the box and automatic collection of logistics information becomes more and more prominent. It is a feasible way to carry the corresponding functions through the container lead seal, but the traditional high security lead seal is difficult to meet the needs due to the limitations of less storage information and reading difficulties, so it is a trend to upgrade the traditional lead seal. At present, many ports are exploring the electronic lead seal based on RF technology to replace the traditional lead seal. However, due to the limitation of standards and costs, it is still unable to promote the application in the container transportation industry. The two-dimensional code lead seal adopts the relatively mature two-dimensional code technology at present, its structure is similar to the traditional lead seal, and the difference in production cost and use is not big with the traditional lead seal. The lead seal manufacturer can mass produce with a little adjustment. Therefore, two-dimensional code lead seal has better economy and applicability.

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