The burglar alarm with intelligent impact vibration that is controlled by single chip microcom-puter was introduced- Comparing the alarm with other, this burglar alarm was of distinguishing features , such as high intelligent, enhanced guarding function and alarming exactly.

Telecontrol guard against theft and alarm system to the single-chip computer;

A guard against theft and alarm system for vehicle is presented in this paper.

The article introduces the intelligent equipment of remote guard against theft and alarm on the base of body infrared sensor.

PIC-based control of a new type of long-range anti-theft alarm;

The paper introduces the working principle,overall design,hardware module function and constitution,software flow of the road lamp anti-theft alarm system based on the method of low frequency pulse frequency modulation (PFM) signal,and briefly describes the effect of trial application.