Land Rover Discovery: Proximity Cameras
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Proximity Camera Coverage Zones
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- Front Proximity Camera
- Right Proximity Camera
- Rear Proximity Camera
- 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 mirror assemblies.
- 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 130º wide by 112º 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.
he 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.
PARKING AID SYSTEM - OPERATION
The parking aid system is activated when:
- Reverse (R) gear is selected directly form Park (P).
- Drive (D) gear is subsequently selected, and the vehicle speed is less than 16 km/h (10 mph).
- Drive (D) gear is selected directly from Park (P) and the Parking aid switch is operated. The front and side sensors are activated only. The sensors will remain active until the vehicle speed is less than 16 km/h (10 mph)
- Parking aid switch is operated for 3 seconds, and the vehicle's speed decreases to less than 10 km/h (6 mph), or Reverse (R) gear is selected.
AUDIBLE WARNINGS
The Parking Aid Control Module (PACM) processes the distance readings from the ultrasonic parking aid sensors to determine if there are any objects within the detection areas. If there are no objects no audible warning will be emitted. If an object is detected, repeated audible warnings are emitted via the audio system speakers. The time delay between the audible warnings decreases as the distance between the detected object and the vehicle decreases until eventually a continuous tone is emitted from the audio system speakers.
DISTANCE CALCULATION FOR AUDIBLE WARNINGS
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Detection Calculation
In the combined mode, the sensors emit a series of ultrasonic impulses and
then switch to receiver mode to receive the echo reflected by an obstacle
within the detection range. The received echo signa
Perpendicular / Parallel parking
Parallel parking
NOTE:
When detecting a space on the left side, then the park assist system
will only use the park assist sensors on the left side of the vehicle. If
detecting a space on the right sid
Parking Exit
Parking Exit Sequence
When parking exit is selected, the park assist sensors search the area for a
space that is big enough to manoeuver out off.
When a space big enough has been identified, the
SEE MORE:
Supplemental Restraint System
Side Air
Bag Module (G1785147) / Removal and
Installation
REMOVAL
WARNING:
To avoid accidental deployment and possible personal injury, the
backup power supply must be depleted before repairing or replacing
any air bag supplementary restraints system (SRS) components. To
deplete the backup power supply energy, disconnect the battery
ground cable and wait f
Entering follow mode
When in Follow mode, the vehicle
may not decelerate automatically
to a stop, nor will the vehicle
always decelerate quickly enough
to avoid a collision.
Once a set speed has been selected, the
driver can release the accelerator and the
set road speed will be maintained.
If a vehicle ahead enters th
