Umirs Europe Predix-50/24 50, Руководство по установке и эксплуатации

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Umirs Europe Ltd. Predix
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DETECTION SPEED ADJUSTMENT
An important feature of the processing algorithm of the detector is its ability to evaluate the likely
maximum speed at which an intruder could be expected to penetrate the detection zone in
relation to the actual penetration speed of the intruder. The specification of the associated
evaluation parameter is made by the user, depending on the physical characteristics of the
protected area.
Three values for the highest anticipated intrusion speed can be specified in the alarm system: 0.5
m/s; 2 m/s; 10 m/s. Recommendations for the setting of this parameter are shown in
Table 1 .
Table 1
Operating environment of the detector
Recommended value for the upper
detecting speed
Open terrain, without any obstacle hindering the
movement of an intruder
“high” (~10 m/s)
Partially physically protected perimeter (low fence,
limited approach space near buildings and walls,
shrubbery, etc.)
“normal” (~2 m/s)
Fully physically protected perimeter (wall, high
fence, etc., where the anticipated penetration speed
of an intruder is significantly lower)
“low” (~0.5 m/s)
Specifying an appropriate value can result in substantial reduction of the likelihood of erroneous
responses by the alarm system, i.e., the frequency of false alarms generated by birds and other
potentially disturbing moving objects.
FREQUENCY ADJUSTMENT
The detector has 250 independent frequency channels (1-250) available. The difference in
frequency between adjacent channels is 1 MHz. The complete range of available channels
comprises 24.00-24.25 GHz. The nominal operating frequency of channel 0 is 24.000 GHZ, that of
channel 10 is 24.010 GHz, and that of channel 250 is 24.250 GHz. The selection of a frequency
channel is made with the help of tuning software. For proper operation of the detector, it is
essential to specify the same frequency channel for both the transmitter unit and the receiver unit.
The following frequency channel-related operational practicality must be taken into account when
installing multiple detectors in close physical proximity to one another, e.g., in a parallel
configuration: Although the nominal transmission channel of a given transmitter unit may be – for
example – 24.150 GHz, its signal is receivable within an actual frequency range of 24.144-24.156
GHz.
Apart from this, the receiver unit indicator indicates in the initial and constantly switched on
system of the indications of the detector:
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alarm signal for 5 seconds;