As airbags are one-time use only and have to be replaced in the garage after deployment, this system also helps to save money. It avoids unnecessary airbag deployment, for example, in seats where there are no passengers and therefore avoids the need to replace them.
Besides airbags, occupant detection and monitoring is also necessary for other advanced driver assistance systems (ADAS). Some cars, for example, use seat-belt tightening as a pre-crash safety measure in the case of an accident, which requires occupant information. Drivers dgm. In addition, fatigue detection can be performed by monitoring eye movements and blinking frequency using a camera. Monitoring the driver’s activity becomes an important topic when considering the future direction to automated driving, as the driver will be allowed to do other things besides the actual driving task, such as reading or working with a tablet. It is therefore crucial that the take over time from automated driving mode to manual driving will be short enough, in case of an emergency situation, if the system is not completely autonomous.
Such advanced driver assistance systems (ADAS) are gaining increased significance, especially since the EU set the goal to reach zero traffic fatalities and, as functions for pedestrian protection have also now been added to the tests for the NCAP 5 star rating. About Hamamatsu Photonics KK HAMAMATSU PHOTONICS K.K. Manufactures electron tubes, semiconductors, and image processors. The Company's products include photosensitive electronic tubes, optical.
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Our TOF CMOS sensor works with an indirect time of flight (TOF) measurement as a 3D sensor. It can therefore deliver the information about the occupants’ position or about the driver’s activity or fatigue. An infrared laser diode or LED, or an array of these, is used as active illumination and sends out short light pulses. The CMOS sensor determines the time of flight of the reflected, incident light with each of its pixels, creating a 3D picture. This CMOS sensor is a special, high-speed charge transfer device, which is essential to measure short distances. The light pulse travels with a high speed of 3*108 m/s to the object and back. The closer the object, the shorter is the time of flight. Therefore the detector must be able to do the whole measurement within several nanoseconds. Dtmb software usb devices driver.
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