Method for adjusting the sensitivity of ultrasonic sensors

Method for adjusting the sensitivity of ultrasonic sensors

  • CN 102,640,013 A
  • Filed: 10/06/2010
  • Published: 08/15/2012
  • Est. Priority Date: 11/30/2009
  • Status: Active Application
First Claim
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1. be used to mate and be used for the sensitivity of method of recognition object, said method comprising the steps of to the sonac (1) of the distance of vehicle:

  • (a) regulate transducer sensitivity, so select said transducer sensitivity, make and launch the sound lobe (5) that has intersection point (7) with ground by said sonac (1),(b) implement to measure by said sonac (1);

    Wherein, Object in the surrounding environment of said vehicle arrives the distance (11) of the intersection point (7) on said sound lobe (5) and said ground (9) greater than said sonac (1) to the spacing of said vehicle;

    Thereby it is the bee-line to object that said sonac (1) is surveyed with the distance (11) of the intersection point (7) on said ground (9) to said sound lobe (5)(c) regulate the sensitivity of said sonac (1) according to the distance (11) between the intersection point (7) of the sonac (1) that in step (b), detects and said sound lobe (5) and said ground (9), make after regulating said sensitivity said lobe its point (31) on approaching said ground (9) locate to be not less than a predetermined distance (33) apart with said ground (9).

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