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Thermal DRI Range Table |
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Focal Length |
8 mm |
15 mm |
25 mm |
35 mm |
50 mm |
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Detection Distance (Humans: 1.8×0.5m) |
235 m (771.7 ft) |
441 m (1,446.9 ft) |
735 m (2,411.4 ft) |
1,029 m (3,376.0 ft) |
1,471 m (4,826.1 ft) |
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Detection Distance (Vehicles: 4×1.5m) |
722 m (2,368.8 ft) |
1,353 m (4,439 ft) |
2,255 m (7,398.3 ft) |
3,157 m (10,357.6 ft) |
4,510 m (14,796.6 ft) |
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Recognition Distance (Humans: 1.8×0.5m) |
59 m (193.6 ft) |
110 m (360.9 ft) |
184 m (603.7 ft) |
257 m (843.2 ft) |
368 m (1,207.4 ft) |
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Recognition Distance (Vehicles: 4×1.5m) |
180 m (590.6 ft) |
338 m (1,109 ft) |
564 m (1,850.4 ft) |
789 m (2,588.6 ft) |
1,127 m (3,697.5 ft) |
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Identification Distance (Humans: 1.8×0.5m) |
(95.1 ft) |
55 m (180.4 ft) |
92 m (301.8 ft) |
129 m (423.2 ft) |
184 m (603.7 ft) |
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Identification Range (Vehicles: 4×1.5m) |
90 m (295.3 ft) |
169 m (554.5 ft) |
282 m (925.2 ft) |
395 m (1,296 ft) |
564 m (1,850.4 ft) |
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Note: The table is only for reference and the performance may vary according to different environment. Note: The optimal detection, recognition, and identification distances are calculated according to Johnson’s Criteria. Detection Range: In order to distinguish an object from the background, the object must be covered by 1.5 or more pixels. Recognition Range: In order to classify the object (animal, human, vehicle, etc.), the object must be covered by 6 or more pixels. Identification Range: In order to identify the object and describe it in details, the object must be covered by 12 or more pixels. |
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Thermal Smart Detection Range Table |
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Focal Length |
8 mm |
15 mm |
25 mm |
35 mm |
50 mm |
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VCA Detection Distance (Human: 1.8 × 0.5 m) |
50 m (164.0 ft) |
92 m (301.8 ft) |
105 m (344.5 ft) |
210 m (689.0 ft) |
284 m (931.8 ft) |
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VCA Detection Distance (Front/Rear of Vehicle: 4×1.5 m) |
100 m (328.1 ft) |
120 m (393.7 ft) |
200 m (656.2 ft) |
350 m (1,148.3 ft) |
450 m (1,476.4 ft) |
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Temperature Measurement (Object: 0.2 × 0.2m) |
19 m (62.3 ft) |
35 m (114.8 ft) |
59 m (193.6 ft) |
82 m (269 ft) |
118 m (616.8 ft) |
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Fire Detection (Object: 0.2 × 0.2m) |
47 m (154.2 ft) |
88 m (288.7 ft) |
147 m (482.3 ft) |
206 m (675.9 ft) |
294 m (964.6 ft) |
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Note: The table is for reference only. The distances within it are subject to actual conditions including atmospheric conditions, target size, the installation site, and more. |
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Visible DORI Range Table |
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Lens |
5.3 to 159 mm |
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DORI Distance (Detection) |
104 to 3,120 m (341.2 to 10,236.2 ft) |
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DORI Distance (Observe) |
41.6 to 1,248 m (136.5 to 4,094.5 ft) |
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DORI Distance (Recognize) |
20.8 to 624 m (68.2 to 2,047.2 ft) |
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DORI Distance (Identify) |
10.4 to 312 m (34.1 to 1,023.6 ft) |
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Note: DORI (Detect, Observe, Recognize, and Identify) is a standard system (EN-62676-4) for defining the ability of a person viewing the video to distinguish persons or objects within a covered area. The numbers in this table do not reflect intelligent function distances. For intelligent function distances, refer to installation and commissioning manual/project design tool. |
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