Dynadis
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	Information about the vehicle occupancy and the passenger's position relative to the airbag module is required to ensure the best protection of passengers against injuries during a crash. Dynadis from IEE is designed to deliver this information with high reliability. Occupants are detected and classified according to their size and their distance from the dashboard. The IEE system is able to detect and determine the orientation of child seats. All this data is important for the optimal control of the airbag deployment. the system combines static occupant classification according to NHTSA FMVSS208, with dynamic out-of-position sensing.
	Dynadis uses the first direct 3D MLI sensor based on the optical "Time of Flight" (TOF) principle. The system works the "Modulated Light Intensity" (MLI) technology using an illumination in the near infrared range. The reflection of the modulated light is measurred by a special pixel structure arranged in a matrix and realised in CMOS-CCD technology. The phase shift between the emitted and reflected light provides direct distance information  on objects in the system's field of view. The Dynadis sensor generates a distance value matrix, which is sent to the controller unit. the distance data allows an accurate spatial location of the monitored occupant or object. A topographic image is obtained from the distance value matrix which generates a 3D contour based classification. Misinterpretations between objects and textures or pictures, which are an issue for 3D image procession, are excluded by the topological data. the 3D distance data is directly available at the 3D matrix sensor output and does not require additional image processing as for stereographic systems.
	The Dynadis system is installed in the overhead console above the rear view mirror. From this position, the system can observe a field of view through an application specific lens with an angle of 120°. The field of view observes the passenger and driver areas. Due to the fact that the system works with an active illumination, the device is independant to the high variation of background light during day or night driving conditions. The illuminations as well as the sensor are optimized to an invisible wavelength in the near infrared range. the combination of high performance data acquisition realized with the sensing unit and an optimized algorithm structure provides a reliable and real-time capable system. Dynadis will be used for Dynamic Occupant Sensing.
	Further applications of the same technology requiring close range car surround monitoring (pre-crash sensing, parking assistant) are in development.
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