公开(公告)号：US20030184442A1

公开(公告)日：2003-10-02

申请号：US10400951

申请日：2003-03-27

Applicant: Ecolab Inc.

Inventor： James P. Gardner JR. ,  Louis Mark Holzman ,  Kraig S. Lund ,  Stephen X. Skaff

IPC: G08B023/00

CPC classification number: A01M1/026 ,  A01M31/002 ,  A01M2200/011 ,  A01M2200/012

Abstract: A method and apparatus for capacitively sensing one or more pests is disclosed. The detector may be employed as either a passive detector and/or as a part of a combined detector and trap. The sensor system includes at least two sensor electrodes and a capacitance sensing circuit. When a non-capacitive object, such as a pest, approaches the sensor electrodes, the capacitance of the sensor electrodes increases due to the object having a higher dielectric constant than air. A capacitance sensing circuit detects the increased capacitance and provides an output signal that a pest has entered the area being monitored. The capacitance sensing circuit may also be constructed to measure the change in the electrode in order to determine the size and/or type of pest based on a characteristic change.

Abstract translation: 公开了用于电容感测一种或多种害虫的方法和装置。 检测器可以用作无源检测器和/或作为组合的检测器和陷阱的一部分。 传感器系统包括至少两个传感器电极和电容感测电路。 当诸如害虫的非电容性物体接近传感器电极时，传感器电极的电容由于具有比空气更高的介电常数的物体而增加。 电容检测电路检测到增加的电容，并提供有害生物进入被监测区域的输出信号。 电容感测电路还可以被构造成测量电极的变化，以便基于特征变化来确定害虫的尺寸和/或类型。