TU-TESL

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According to foreign media reports, spectrum scan lidar Gamma Lidar) R & D company Baraja will launch the next generation of anti-interference sensing platform. At present, Baraja's lidar is the only system using random modulation continuous wave, which can completely block the interference of other lidars and environmental light sources. (photo source: Baraja website) Federico collarte, co-founder and CEO of Baraja, said, "sensor interference is a big problem for today's cars. With the increasing number of automatic driving vehicles equipped with lidar, this problem will become more and more serious. Interference can lead to blind spots, and it will be intolerable to drive the motor vehicle blind for a short time. We have the experience of technology research and development in the telecommunication industry, and can solve the interference problem by coding the laser. And use the same mature mass production components to code information for non-interference communication. " When lidar emits laser, it receives the light of other laser or environment light source (such as sunlight) at the same time, which will produce interference, and the error and uncertainty will produce blind spot. At present, this situation will lead to the unavailability of automatic driving technology, and the vehicle can only be operated by a safe driver. Baraja is leveraging its spectrum scan Gamma This technology is the basis of the sensor platform. Spectrum-Scan Gamma The principle of this system is to quickly switch the laser wavelength and transmit light through a prism, which diffracts light of different colors in different directions. When the light returns to the sensor, the sensor processes all signals only when their wavelength, angle, time and coding match all signals to ensure that they are not interfered. Spectrum scan of Baraja Gamma High technical reliability, suitable for vehicle environment. The system has a modular design, which separates optics from electronic equipment and greatly improves reliability. For example, the new generation of sensor head can adapt to the temperature range of - 40 to + 105C. According to SAE standard j1211, the mean time between failures (MTBF) of the key components of the system is more than 40 years, which is far greater than that of the same technology. Baraja's next generation lidar has been carefully designed to improve the resolution by three times and reduce the height by three times compared with the first generation. Baraja's lidar platform works at 1550 nm, which exceeds the industry's remote sensing requirements, i.e. detecting 10% of the reflectance targets at a distance of 200 meters. Because of the use of prism and tunable wavelength laser, the system can dynamically adjust the resolution in the most interested area, and can imitate the human eye and change the focus area according to the situation.