|
|
Article: Device designed to reduce false alarms.(EE Systems Group Inc. and Randall Wang develops false alarm reduction components)
- Article from:
- Security Distributing & Marketing
- Article date:
- June 1, 2006
CopyrightCOPYRIGHT 2006 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
In the late 1990s, when the founder of E & E Electronic Engineering Research Inc., Randall Wang, realized that his southern California alarm company was faced with a serious and growing problem of false alarms, he reviewed thousands of accounts and discovered that approximately 75 percent of false alarms are caused by false trips from PIR motion detectors.
[GRAPHIC OMITTED]
These in turn are caused by differential temperature sources, lightning, radio frequency (RF) energy, insects, air drafts and other sources. The main characteristic is that they happen only once within a reasonable period of time.
In contrast, a real break-in will cause more ...