When implementing lean production, enterprises should classify product quality defects by considering factors such as safety, stability, lifespan, performance, external packaging, and market demand.

The Andon system enables enterprises to monitor and manage production line conditions in real-time, serving as an indispensable tool in the implementation of lean manufacturing processes.

Generic andon systems lack specific features, while customized andon systems are better tailored to factory production. Not only can the operator interface and display be customized, but other modules of the MES can also be customized.

To ensure the Andon system effectively covers the factory's production environment, it should avoid issues such as insufficient visualization due to a lack of production items, as well as frequent false alarms caused by an excessive number of production items.

The Andon system includes the Andon box, Andon accumulation box, Andon control box, Andon display board, shop floor information display board, Andon reporting system, etc.

The Andon system in smart manufacturing originated from the automotive production industry as a production management methodology. Its foundational philosophy is "establishing an immediate stop protocol to resolve issues," which catalyzed the development of the Andon system.

In an Andon system, a green light signifies that operations are running smoothly, a yellow light indicates that an issue has been identified, and a red light signals a critical problem. Additionally, different combinations of lights may be displayed depending on the specific circumstances.

The greatest benefit of smart factory transformation for manufacturing enterprises lies in its ability to drive profit growth.

Smart factories emphasize low cost, rapid responsiveness, high customization, and intelligence. In domains such as assembly lines, supply chains, and multi‑level management, smart factories enable enterprises to operate with greater efficiency.

By leveraging internet technologies, smart factories inject new momentum into manufacturing enterprises, transforming their traditional business growth models and fostering a novel digital productivity paradigm that enhances economic performance.