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System and method for improving infrared detector performance in dual detector system

机译:在双探测器系统中提高红外探测器性能的系统和方法

摘要

Embodiments of the present invention is directed to a method and system for use of ranging MW to reduce dual (MW/PIR) intrusion detector false alarms. A Doppler microwave system may be provided that is capable of detecting an object range and adjusting the sensitivity of the PIR detector to account for object size and range. Multiple range limited MW stages may be configured for different ranges to determine the general range of the moving object. Based on signal levels present on these MW stages, an approximate object range is determined. The sensitivity of the PIR is then adjusted based on a PIR sensitivity vs. object range function that is optimized to alarm on humans and ignore small animals and insects.
机译:本发明的实施例涉及一种用于使用测距MW来减少双重(MW / PIR)入侵检测器错误警报的方法和系统。可以提供多普勒微波系统,该多普勒微波系统能够检测物体范围并调节PIR检测器的灵敏度以考虑物体尺寸和范围。可以将多个范围受限的MW级配置为用于不同范围,以确定移动物体的总体范围。根据这些MW级上存在的信号电平,确定大概的目标范围。然后根据PIR灵敏度与对象范围函数对PIR的灵敏度进行调整,该函数已优化为向人类发出警报并忽略小动物和昆虫。

著录项

  • 公开/公告号US7679509B2

    专利类型

  • 公开/公告日2010-03-16

    原文格式PDF

  • 申请/专利权人 GREGORY ROYER;

    申请/专利号US20070714934

  • 发明设计人 GREGORY ROYER;

    申请日2007-03-07

  • 分类号G08B13/18;

  • 国家 US

  • 入库时间 2022-08-21 18:50:44

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