User's Manual
Collision Avoidance System: CAS-CAM/RF® Operating Instructions
Document Number: CAS-CAM_RF Operating Instructions (with FCC
precautions)_18June2010.doc
Page 70 of 126
Issue: E
10.1.11 RF Detections and Alarms
10.1.11.1 Alarm Display
The top two lines of the Heavy Vehicle Display Unit are reserved as the alarm display for
both FRONT and REAR RF detections (refer to Figure 35). This relies on the Heavy
Vehicle being fitted with the CAS-RF
®
option where RF Units are fitted to either the REAR
only or FRONT and REAR of the vehicle for automatic object detection.
The objects detected are sorted into the following classes:
• Heavy Vehicle (HV) or Mobile Plant & Equipment (HV)
• Light Vehicle (LV)
• Stationary Object (SO)
• Personnel Tag (PT)
• Test Station (TS)
The number of objects detected in each class is also displayed.
A sample of the object detection alarm display for both a FRONT and REAR detection
CAS-RF system is as follows (refer to Figure 35 for screen layout):
FRONT: HV 1 LV 1 SO 1 PT 2 TS
REAR: HV2
The above alarm display indicates that the following object types and numbers were
detected within the Heavy Vehicle Front and Rear Detection Zones:
FRONT: detected 1 x Heavy Vehicle (HV), 1 x Light Vehicle (LV), 1 x Stationary Object
(SO), 2 x Personnel Tags (PT) and 1 x Test Station (TS)
REAR: detected 2 x Heavy Vehicles
10.1.11.2 RF Detection Ranges
The Heavy Vehicle FRONT and REAR RF Units can be field programmed for adjustable
RF Detection Ranges (typically 0 – 80 m +/- 20% accuracy). Front and Rear RF Detection
Ranges and alarm conditions based on direction of travel can be different for each object
types (e.g. HV, LV, SO, PT, TS) in order to suit the particular application.
The audible alarm (if enabled) is a pulsed alarm (typically 0.5Hz).
Refer to sections 5 & 7 for more details on Detection Zones and Alarm Scenarios.
10.1.11.3 Alarm Process
• new objects detected within the programmed RF Detection Range(s) can generate
alarms or existing objects previously detected will re-trigger alarms on a gear change
• object detections generate an audible alarm if programmed
• The number and class of objects detected are displayed on the top two lines of the
Display Unit screen for both FRONT and REAR RF units (where fitted)