With the industrial development, not only more and more local use of the multi-sensor, but also more and more use of the information fusion technology. Automotive - This product of human industrial civilization, the modern means of transport, has been regarded as luxury goods, With the rapid development and people's living standards rising, has gradually become a new member of the ordinary household . But with the increasing number of cars, theft molecules began to look toward the car as a high-end consumer goods. In addition, today's car burglar alarms often use the voice alarm. To make alarm sound is different from the background environment, the volume of car alarms are often as high as 125 dB. Car alarm noise pollution has become one of the cities. From this, the existing car alarm system car alarm not only can not meet demand, there is also noise pollution, power, high false positive rate, and many other shortcomings. Therefore, the design of a new generation of more reliable, environmentally friendly car alarm system is an inevitable trend in automobile manufacturing industry.
Keywords: sensors, information fusion technology, voice alarm, car alarm system