Intrusion detecting apparatus for a vehicle

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 25/10 (2006.01)

Patent

CA 2198693

An intrusion detecting apparatus for a vehicle comprising an ultrasonic transmitting/receiving sensor (S), an intrusion detecting unit (120-151) for detecting whether or not a person intrudes into a passenger compartment, based on the received signal, a stopping unit (160) for intermittently stopping the transmission from the transmitter, and a cover detecting unit (170-211) for detecting whether or not the sensor is covered, based on the signal received after stopping the transmission of the signal and, in response to a predetermined condition representing that the sensor is covered, whereby it can correctly determine whether or not the sensor is covered, improving the accuracy of the detection of an illegal intrusion of a person. At least one of a transmitter and a receiver in the sensor and the intrusion detecting unit is also intermittently operated to reduce the power consumption.

Dispositif de détection d'intrusion pour véhicule, comprenant un capteur émetteur-récepteur à ultrasons (S), une unité de détection d'intrusion (120-151) pour détecter si une personne fait ou non intrusion dans un habitacle, d'après le signal reçu, une unité d'interruption (160) pour interrompre par intermittence la transmission de l'émetteur, et une unité de détection de couverture pour détecter si le capteur est ou non couvert d'après le signal reçu après interruption de la transmission du signal et en réponse à une condition prédéterminée correspondant à l'état couvert du capteur, ce qui permet de déterminer correctement si le capteur est couvert ou non et ainsi d'améliorer l'exactitude de la détection d'intrusion. Au moins un des composants émetteur et récepteur du capteur et de l'unité de détection d'intrusion fonctionne en outre par intermittence pour réduire la consommation d'énergie.

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