In-vehicle living body detection system and method based on millimeter-wave radar

Abstract

The invention relates to the field of in-vehicle living body detection technologies and particularly discloses an in-vehicle living body detection system based on a millimeter-wave radar. The system comprises a front-end perception module, an algorithm analysis module and a control execution module, wherein the front-end perception module is connected with the algorithm analysis module and is usedfor transmitting a millimeter-wave radar signal, acquiring an echo signal reflected back by a target and preprocessing the echo signal; the algorithm analysis module is connected with the control execution module and is used for acquiring human micro-motion frequency parameters according to the preprocessed echo signal and obtaining a result of whether a living body or a living body sign anomalyexists in a vehicle or not through the human micro-motion frequency parameters; and the control execution module is used for controlling the vehicle to do a corresponding action according to the result obtained by the algorithm analysis module. Through the system, living body detection in a vehicle flameout state and detection of the in-vehicle living body sign anomaly during normal travel are realized, and vehicle safety is enhanced on another dimension.

Description

technical field [0001] The invention relates to the technical field of in-vehicle life detection, in particular to a system and method for in-vehicle life detection based on millimeter wave radar. Background technique [0002] Since the 20th century, with the rapid development of the automobile industry, the production and sales of automobiles have been increasing year by year, and the "automotive era" has arrived. The number of cars in the world today has exceeded 1 billion, of which China has the fastest growth rate. In 2017, the number of cars has reached 208 million. Cars are gradually becoming popular among home users. With the advancement of science and technology, the speed of technological innovation in the automotive industry has also become faster and faster. From perfect and complex mechanization innovation to the iteration and upgrade of intelligent assisted driving functions, every technological leap has brought huge changes to the automotive market. The impact...

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Problems solved by technology

In recent years, there have been many news about car safety in daily life. For example, incidents such as "the bus master died suddenly while driving", "the child was trapped in the car and no one knew about it for a long time, the child almost died" and other incidents made people In addition, in some serious traffic accidents with complex scenes, the traffic police officers cannot judge whether there are people in the car in time, which affects the implementation of the accident scene treatment plan, and finally misses the critical rescue time when there may be people in the car

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