A processing method and apparatus for energy saving of an...

G - Physics – 01 – S

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G01S 17/02 (2006.01) G01V 8/10 (2006.01) G08B 13/181 (2006.01) H03K 17/945 (2006.01)

Patent

CA 2649605

An active infrared induction instrument powered by a dry battery capable of reducing power consumption through the adjustment of the emitter pulse width. The infrared emitting LED emits infrared signals, which, after being reflected by an object, are received by the infrared photodiode. The infrared signals received by the infrared photodiode then enter an integrated circuit chip through a comparator. The pulse widths of the infrared emission pulse signals are dynamically adjusted after the width of the pulse series is received by the discrimination chip, thus reducing the emission power consumption to save energy.

L'invention concerne un instrument d'induction infrarouge actif alimenté par une batterie sèche permettant de réduire une consommation d'énergie par le réglage de la largeur d'impulsion d'un émetteur. La diode électroluminescente émettant des infrarouges émet des signaux infrarouges qui, une fois réfléchis par un objet, sont reçus par la photodiode à infrarouges. Les signaux infrarouges reçus par la photodiode à infrarouges entrent ensuite dans une puce de circuit intégré par un comparateur. Les largeurs d'impulsion des signaux d'impulsion d'émission infrarouge sont dynamiquement réglées après la réception de la largeur de la série d'impulsions par la puce de discrimination, ce qui permet de réduire la consommation d'énergie d'émission pour économiser de l'énergie.

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