Proximity Cameras
Proximity Camera Coverage Zones
| ITEM | DESCRIPTION |
|---|---|
| 1 | Front proximity camera |
| 2 | Right proximity camera |
| 3 | Rear proximity camera |
| 4 | Left proximity camera |
The proximity camera system has four cameras that are located in the following:
- One camera located in the front bumper.
- One camera in each of the door mirrors.
- One camera in the tailgate.
The proximity camera system uses Video Graphics Array (VGA) resolution cameras that are permanently powered whenever the ignition is 'on'. Each camera provides an image covering a zone approximately 130° wide by 112° deep and is capable of capturing approximately thirty frames per second.
The cameras employ high-quality digital High Dynamic Range (HDR) imaging, which is set of techniques that allow a greater range of luminance between light and dark areas of an image scene. This allows HDR to more accurately represent the varying intensity levels found in the image scenes that can range from direct sunlight to deep shadows.
Camera Mounting
To reduce the cost of accident repair, the mounting of the front bumper cameras feature a 'snap free' bracket. On impact, the bracket will release the camera preventing damage to the camera itself. Depending on the severity of the accident it may also be possible to reuse the brackets as they are manufactured from a memory type plastic.
The positioning accuracy of all the cameras is crucial for the successful operation of the proximity camera system. The camera housings are manufactured using metal to maintain a structural stability in high-ambient temperatures. Without this stability a loss of image focus would be a possibility, therefore care must be taken when mounting the cameras in ensuring they sit correctly into their locations. Secure mounting of the cameras provides an initial 'build up' tolerance accurate to 2 mm. In the event of camera replacement, a calibration routine must be performed.