Quick Start Guide

Thermometric Network Positioning System
·Quick Start Guide
6
2.3 Installing the Positioning System
2.3.1 Monitoring Distance Range
Electric lens is adopted for the thermometric channel of positioning system. It supports
auto-focus function and remote focus function. For different lens focal length, the
monitoring range is shown in the table below:
Table 2-1 Monitoring Range (Pixel Interval: 17um)
Lens Focal Length/mm
75
100
150
MRAD
0.23
0.17
0.11
Detection Range (Vehicle)/m
6765
9020
13529
Detection Range (Human)/m
2206
2941
4412
Recognition Range (Vehicle)/m
1691
2255
3382
Recognition Range (Human)/m
551
735
1103
Identification Range (Vehicle)/m
846
1127
1691
Identification Range (Human)/m
276
368
551
Table 2-2 Monitoring Range (Pixel Interval: 25um)
Lens Focal Length/mm
75
100
150
MRAD
0.33
0.25
0.17
Detection Range (Vehicle)/m
4600
6133
9200
Detection Range (Human)/m
1500
2000
3000
Recognition Range (Vehicle)/m
1150
1533
2300
Recognition Range (Human)/m
375
500
750
Identification Range (Vehicle)/m
575
767
1150
Identification Range (Human)/m
188
250
375

This table is for reference only, and the actual detection range may vary according to
different camera settings, mounting condition, monitor and so on.

When the weather is fine and the atmospheric visibility is normal, the probability of
detecting/recognizing/identifying target is 50%.

The human width is presumed as 0.5m (human width cannot exceed 0.75m), the
human height is presumed as 1.8m, and the vehicle width cannot exceed 2.3m.