Safegate Group safedock, User Manual

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SAFEDOCK®

Safegate Group
Manual Date: 6 February 2015
Chapter: 2 INSTALLATION Version: 2.7
Page 6 of 26
2.3.1 Aircraft Safety Check
For systems using the “Aircraft Safety Check” feature, the engine of the aircraft must
be within a

30 degrees view area of the system. The aircraft must have been aligned
to the centreline for at least 4 seconds, when more than 15 metres remain to the stop-
position. Failure to obtain this condition will lead to an ID-FAIL situation.
View area
FIGURE 2.4 AIRCRAFT SAFETY CHECK
2.4 TRACKING
When the Safedock system successfully locates an approaching aircraft within the far
clip distance, tracking with azimuth guidance starts. The system can give azimuth
guidance to a fuel truck, but it will eventually end with an ID fail. Therefore, azimuth
guidance begins when the system acquires a lock onto an object (possibly but not
necessarily an aircraft).
Identification (or verification) is the next part of the process, independent from
tracking, where the physics of the incoming aircraft is verified vs. the physics of the
aircraft expected. It is recommended to consider where aircraft tracking is to be
started based on the following:
1. Distances to the countdown area, to stop-position(s) and the Safedock unit.
2. A frontal view of the approaching aircraft from the Safedock unit which is
unobstructed (laser scanning view).
3. The distance from the Safedock unit from which the incoming aircraft will appear
while entering the stand area.
4. Presence of service roads and/or crossing taxiways.
For more information, see 4A Stand Configuration Utility, § 4.5 Centreline.
Note : The Safedock system is capable of tracking an approaching aircraft from a
distance of 110 m. However in most cases, the distance depends on site
configuration, such as the approach to gate.
2.5 CURVED CENTRELINE
For a curved centreline, the angle between the optical axis of the system and the
approaching aircraft may not exceed 20 degrees.
Stop-po 15m
30
o (T1)
13
o (T2/3)
30
o (T1)
13 o (T2/3)