| 发明名称 |
Supervised PIR motion-detection system |
| 摘要 |
A passive infrared motion detection system is provided with means for detecting increases and/or decreases in the sensor or system sensitivity by a predetermined amount vis-a-vis a nominal level. Various schemes are disclosed for implementing this concept.
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| 申请公布号 |
US5382944(A) |
申请公布日期 |
1995.01.17 |
| 申请号 |
US19920924958 |
申请日期 |
1992.08.05 |
| 申请人 |
DETECTION SYSTEMS, INC. |
发明人 |
DIPOALA, WILLIAM S.;LEDERER, DAVID B. |
| 分类号 |
G08B13/18;G08B29/18;(IPC1-7):G08B13/18 |
主分类号 |
G08B13/18 |
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