Environment identification system for vehicle millimeter-wave radar

Abstract

The invention discloses an environment identification system for a vehicle millimeter-wave radar. The environment identification system comprises a millimeter-wave radar device for detecting an obstacle outside a vehicle and converting a detection result into reflection information; an energy intensity calculating device, an anti-noise calculating device, and an obstacle width calculating device are respectively connected to the millimeter-wave radar device to receive the reflection information, calculate energy intensity information, a proportion value of a signal and a noise, and width information of the obstacle respectively, and transmit the information to a control unit; and the control unit integrates the energy intensity information, the proportion value of a signal and a noise, and the width information to identify the type of the obstacle. Therefore, various obstacles outside vehicles can be identified effectively and vehicles can take measures to deal with the obstacles in real time; and for example, a corresponding security anti-collision measure is taken when a pedestrian is detected.

Description

technical field [0001] The invention relates to a vehicle environment recognition system, in particular to a vehicle millimeter wave radar environment recognition system which uses a millimeter wave radar to detect obstacles outside the vehicle, and then calculates through an application algorithm to distinguish the obstacle type. Background technique [0002] With the rapid advancement of science and technology, the technology of many products needed in daily life has also been greatly improved. Especially with the maturity of semiconductor technology, it has also created the emergence and progress of automotive electronic products, improving the vehicles driven by early drivers, making Today's vehicles not only have the function of "going", but also add many innovative technologies to the vehicles to provide further safety protection for today's vehicles and drivers, from early anti-theft systems, reversing sensors, to today's obstacles Relevant technologies such as object...

AI Technical Summary

Problems solved by technology

like Figure 1c As shown, but in general radar detection, because only the width of the obstacle is adopted for identification, if the driving vehicle 10 is driving on the road, it is easy to misjudge obstacles such as road trees 16 or street lamps and sign lights as pedestrians 12, Or when the vehicle 10 detects the pedestrian 12 and the road tree 16 at the same time, the radar may make a misjudgment due to the similar width of the pedestrian 12 and the road tree 16. Once this technology is applied to automatic driving or safety collision avoidance measures, Then it is easy to cause identification errors. Once a collision occurs, or when the vehicle 10 cannot identify pedestrians 12 or road trees 16 during automatic driving, it may cause confusion in execution and produce unpredictable consequences.

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