RFID technology is crucial to enable photovoltaic manufacturing

According to the Ministry of Industry and Information Technology, in order to promote the deep integration of the photovoltaic industry and the new generation of information technology, accelerate the realization of intelligent manufacturing, intelligent application, intelligent operation and maintenance, and intelligent scheduling, comprehensively improve the quality and efficiency of my country's photovoltaic industry development, and promote the realization of the carbon peak in 2030, 2060 The Ministry of Industry and Information Technology, the Ministry of Housing and Urban-Rural Development, the Ministry of Transport, the Ministry of Agriculture and Rural Affairs, and the National Energy Administration recently jointly issued the "Smart Photovoltaic Industry Innovation and Development Action Plan (2021-2025)" (hereinafter referred to as "plan").

The "Plan" clearly states that by 2025, the level of intelligence in the photovoltaic industry will be significantly improved, and breakthroughs will be made in industrial technology innovation. The mass production conversion efficiency of new high-efficiency solar cells has been significantly improved, and a complete set of supporting capabilities such as silicon materials, silicon wafers, equipment, materials, and devices has been formed. The construction of the smart photovoltaic industry ecological system has been basically completed, and the level of integration with the new generation of information technology has gradually deepened. Significant progress has been made in smart manufacturing and green manufacturing, and the supply capacity of smart photovoltaic products has been enhanced.

The era of photovoltaic "high-tech" has come. In the future, the entire life cycle of photovoltaic products from manufacturing to operation and maintenance will be immersed in the unity of information management, systematic scheduling, and intelligent integration, and will be deeply integrated with the new generation of big data, artificial intelligence, 5G communication and other technologies.

At present, my country's photovoltaic industry is going through a critical period of transition from relying on subsidies to grid parity. Enterprises must not only grasp the pace of development and survive the darkness before dawn, but also make technical reserves and breakthroughs. The continuous reduction of non-technical costs and continuous improvement of product efficiency are the key to breakthroughs in reducing the cost of photovoltaic power generation and achieving grid parity. power.

From a global perspective, energy structure adjustment and transformation is a common problem faced by all countries in the world. As a clean and renewable energy source, photovoltaics will occupy an important position in the future energy structure.

Photovoltaic, as a safe and clean green energy, has been paid close attention to and valued by people. Since the overall production process of the photovoltaic industry is relatively complicated, it is necessary to use RFID solutions to realize the traceability of the solar cell production process.

As an important part of the upstream of the photovoltaic industry chain, single crystal slicing is made by melting polycrystalline materials such as polycrystalline silicon in a single crystal furnace, and growing a dislocation-free single crystal by the Czochralski method. During the growth process, the single crystal silicon rod can be affected by factors such as temperature, pulling speed and rotation speed, crucible tracking speed and rotation speed, flow rate of protective gas, etc. Among them, the temperature mainly determines whether the crystal can be formed, and the speed will directly affect the intrinsic quality of the crystal.

When each single crystal silicon furnace stretches silicon rods, it is necessary to control the precise position and speed of process parameters such as crucible riser, heat shield and crystal riser to ensure the normal formation of silicon rods. Each single crystal furnace requires multiple RFID Reader-writer products to support its control system. Relying on the precise detection accuracy of industrial-grade RFID readers, the crystal columns formed by the solar single crystal furnace have very good uniformity, which effectively guarantees the quality of the finished monocrystalline silicon rods.

The entire RFID system adopts the read-write head of UHF technology as the read-write terminal of the tag data, and the read-write data is high-speed and accurate. The data interface adopts Profinet bus protocol gateway, which is convenient for integration and on-site debugging. The standardized and modular design greatly shortens the implementation time of the entire RFID system.

Under the guidance of the national "intelligent manufacturing" development policy, RFID industrial identification has a broad market space in the field of manufacturing. The RFID system optimizes the business process, making the manufacturing process more efficient and increasing the economic benefits multiples.

The emergence of RFID has endowed objects with senses such as touch, taste and smell, making objects slowly come alive. In the automatic production process, various RFIDs are required to monitor and control various parameters, so that the equipment can work in a normal or optimal state, and the product can achieve the best quality.