15
·
The target is not within the specific identification area of the
infrared thermal image.
2.5. Alarming strategy
Risk of collision between the vehicle and pedestrian or forward
vehicle is mainly divided into two types: relative distance between the
target and vehicle decreases sharply; the garget passes through in front
of the vehicle at high speed. The system conduct real-time judgment
on the above two types of risks of collision and gives an alarm timely
which is called proximity alarm.
1) Pedestrian identification
Fig. 7
Scope of pedestrian identification
·
The area pointed by arrow 1 and arrow 2 is the scope of
identification area. When the pedestrian target imaging is shown in this
area, the system will identify this and will mark the location with a
rectangular frame.
·
The area pointed by arrow 2 is the alarm area. When the
system identifies that there will be risk of collision between the
pedestrian target and vehicle, it will give a warning prompt to the driver.
The area 15-45m ahead of the vehicle is red alarm area; the area
45-90m ahead of the forward vehicle is yellow alarm area.
