Selective weed discrimination

Details Selective weed discrimination Selective weed discrimination

G - Physics

01

N

G01N 21/35 (2006.01) A01B 79/00 (2006.01) A01M 7/00 (2006.01) B05B 12/12 (2006.01) G01N 21/31 (2006.01)

Patent

CA 2445802

An apparatus (22) for selectively discriminating vegetation or plant matter (28) comprises a light emitting means (24), a light sensing means (30) and a distance sensing means (34). The light emitting means generates a beam of light (26) that can be directed onto plants or plant matter moving relative to the apparatus. The light sensing means senses light transmitted from said light emitting means and reflected from the plants or plant matter, and generates a reflection signal in response to the sensing of the reflected light. The distance sensing means senses the relative distance moved and generates a distance signal. A processing means (32) is operatively connected to the light sensing means and the distance sensing means to combine the reflection signal and distance signal to discriminate different types of plants or plant matter.

Appareil (22) pour la discrimination sélective de végétation ou de matière végétale (28), comprenant un moyen luminescent (24), un moyen capteur de lumière (30) et un moyen de mesure de distance (34). Le moyen luminescent génère un faisceau de lumière (26) qui peut être dirigé sur des plantes ou sur une matière végétale bougeant par rapport à l'appareil. Le moyen capteur de lumière capte la lumière transmise par ledit moyen luminescent et réfléchie par les plantes ou la matière végétale, et génère un signal de réflexion en réponse au captage de la lumière réfléchie. Le moyen de mesure de distance mesure la distance relative mouvante et génère un signal de distance. Un moyen de traitement (32) est connecté opératoire au moyen capteur de lumière et au moyen de mesure de distance, si bien que le signal de réflexion et le signal de distance sont combinés pour permettre la discrimination entre différents types de plantes ou de matières végétales.

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