TU-TESL

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According to foreign media reports, a team of researchers from the Fraunhofer Institute for optical Microsystems (IPMS) in Dresden, Germany, are developing a micro scanning mirror (MEMS scanner), which can make the car sense the surrounding environment reliably and without interference. When a car passes the corner, no one is on the driver's seat. If a pedestrian suddenly crosses the road before the vehicle, the automatic driving car will automatically brake. In order for the vehicle to recognize the surrounding environment, the lidar sensor will replace the driver's eyes. Lidar is the technology of light detection and ranging. It can measure the distance between the object and the vehicle. Its working principle is to transmit the laser signal to the environment, and then analyze the reflected laser signal. The research team is developing a "scanning eye" method to achieve 3D digital vision. The micro scanning mirror module transmits laser in two-dimensional space to scan the environment, and determines the three-dimensional laser reflected from the object by the detector signal (such as flight time measurement, coding pulse or FWCW signal demodulation). "What's special about our MEMS scanners is that they can reliably detect objects at all distances around them," explains Dr. grahmann, a researcher at the Fraunhofer Institute of optoelectronic microsystems. In addition, the component is lightweight and can be integrated into the vehicle. And although it is very flexible, it will not be affected by the vibration of the car, so it can detect the surrounding environment without measuring the motion fuzzy information.