Occupant sensor and method for seat belt or other monitoring

Details Occupant sensor and method for seat belt or other monitoring Occupant sensor and method for seat belt or other monitoring

B - Operations, Transporting

60

Q

B60Q 1/00 (2006.01)

Patent

CA 2642222

The change in voltage or current of the antenna is measured by the time to reach a particular voltage level. Using either charging and/or discharging, the times to reach two or more different levels of the total charge are measured. By providing sensor electronics with each sensor or antenna, a more versatile system may be provided. The sensors and associated electronics communicate using a bus or other communication path to a processor. The processor determines an occupant state based on the received sensor information. Different numbers of sensors may be used with the same system.

Selon l'invention le changement de tension ou de courant dans l'antenne est mesuré par le temps mis pour atteindre un niveau de tension particulier. En utilisant la charge et/ou la décharge on mesure les temps mis pour atteindre deux niveaux différents ou plus de la charge totale. L'utilisation de composants électroniques de capteur avec chaque capteur ou antenne permet d'obtenir un système plus adaptable. Les capteurs et les composants électroniques associés communiquent à l'aide d'un bus ou d'une autre voie de communication avec un processeur. Le processeur détermine un état d'occupation sur la base des informations de capteur reçues. On peut utiliser un nombre différent de capteurs avec le même système.

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