buy school smart board.Photoelectric positioning technology, that is, optical information processing technology, uses a unique photonic technology to instantly turn an ordinary white wall or curtain into an interactive whiteboard. Compared with the current resistance film pressure sensing, electromagnetic induction, infrared positioning, ultrasonic positioning and other mainstream whiteboard technologies, the performance is excellent, the quality is stable, and the cost is low. At present, the well-known IT manufacturer Patriot has launched a photonic whiteboard, which uses Blu-ray positioning technology, which has no restrictions on size and medium. From the perspective of future development, the technology products are expected to gradually improve in performance and meet the corresponding requirements of other mainstream whiteboard technologies. The effect is a revolutionary storm in electronic whiteboards.