The two dimensional bar code has the characteristics of large storage, high security, high tracking, strong resistance, great support and cheap cost. These characteristics are especially suitable for forms, security, tracking, evidence, inventory, information preparation and so on. This paper mainly introduces the application of laser marking two-dimensional code traceability system. A product to establish a complete data traceability system, to achieve two goals, one is the internal quality control traceability, and the other is the external product traceability.

Internal quality traceability

The internal quality tracing can be traced to the production batch, supplier, processing flow and bad rate. It only needs to use the laser marking machine to mark the product of the output, and can be inquired through the database system. Once the batch of products has problems and which suppliers do not supply specifications, they can know the details at a glance.

After being processed into finished products, the product is marked two times by laser. The only batch, tamper proof, and permanent two-dimensional code are marked. Again, the visual recognition system is entered into the database system, and it is combined with the external traceability system.

External product traceability
External product tracing is mainly to facilitate users to query the authenticity of goods through scanning the two-dimensional code, understand the origin of products, production date and more detailed information. At present, in the food, medical, industrial electronics and other industries, laser marking two-dimensional code traceability system is widely used.

Wonder laser two-dimensional code traceability system, dedicated to the perfect tracking of the industry chain, in order to achieve one object, one yard as the goal, the whole process of product control. Laser marking has the advantages of low cost, easy generation of two-dimensional code, flexible information communication, high information readability and permanent laser coding.