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en | Equipment estimation, location accuracy and receiver location
Security Escort
2017.08 | V2.18.1.0 | DOC
Training Manual
Robert Bosch (SEA) Pte Ltd
3
Equipment estimation, location accuracy and receiver
location
A Security Escort system installation consists of three major steps:
1.
the pre-bid equipment estimation,
2.
the pre-construction coverage verification survey, and
3.
the post construction setup.
The Security Escort receivers work effectively in a wide variety of installations and can be
placed with confidence provided these installation requirements are met. Therefore, at the
pre-bid stage, it is acceptable to estimate the required equipment. To ensure proper coverage
after proposal acceptance, potential receiver locations can be verified using a standard
receiver in test mode or the portable test receiver before construction begins.
3.1
Location accuracy
The Security Escort system provides quick response to a duress call. Its intent is to dispatch a
responding individual to an area without additional delay to their response to that duress call.
Figure 3.1: System Block Diagram
The Security Escort system uses radio frequency (RF) for alarm transmissions. This is
significant because it prevents normal construction from blocking the signal and helps to
eliminate dead spots where the alarm could not be heard. The fact that RF energy passes
through normal construction prevents Security Escort from locating an alarm with 100%
certainty to a specific side of a wall. Alarms originating at or near building walls will typically
be indicated within 7.5 m (25 ft) of the actual location. However, there may be times when the
computed location may appear to be on the other side of the wall.
The Security Escort system was designed to provide a computed alarm location typically
within 7.5 m (25 ft) of the actual location when indoors, and a computed alarm location
typically within 15 m (50 ft) of the actual location outdoors. Any deviation from the following
installation guidelines will degrade the computed location accuracy. Therefore, to achieve
accuracy, the following installation guidelines must be adhered to.
