Thermal DRI Distance Table | ||||
Focal Length | 9 mm | 15 mm | 25 mm | |
Detection Distance (Humans: 1.8×0.5m) | 375 m (1230.3 ft) | 625 m (2,050.5 ft) | 1,042 m (3,418.6 ft) | |
Detection Distance (Vehicles: 4×1.5m) | 1,150 m (3,773 ft) | 1,917 m (6,289.3 ft) | 3,194 m (10,479 ft) | |
Recognition Distance (Humans: 1.8×0.5m) | 94 m (308.4 ft) | 156 m (511.8 ft) | 260 m (853 ft) | |
Recognition Distance (Vehicles: 4×1.5m) | 288 m (944.9 ft) | 479 m (1,571.5 ft) | 799 m (2,621.4 ft) | |
Identification Distance (Humans: 1.8×0.5m) | 78 m (255.9 ft) | 130 m (426.5 ft) | ||
Identification Range (Vehicles: 4×1.5m) | 144 m (472.4 ft) | 240 m (787.4 ft) | 399 m (1,309 ft) | |
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. | ||||
Thermal Smart Detection Range Table | ||||
Focal Length | 9 mm | 15 mm | 25 mm | |
VCA Detection Distance (Human: 1.8 × 0.5 m) | 40 m (131.2 ft) | 65 m (213.3 ft) | 101 m (331.4 ft) | |
VCA Detection Distance (Front/Rear of Vehicle: 4×1.5 m) | 75 m (246.1 ft) | 130 m (426.5 ft) | 230 m (754.6 ft) | |
Temperature Measurement (Object: 0.2 × 0.2m) | 30 m (94.4 ft) | 50 m (164 ft) | 83 m (272.3 ft) | |
Fire Detection (Object: 0.2 × 0.2m) | 75 m (246.1 ft) | 125 m (410.1 ft) | 208 m (682.4 ft) | |
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. | ||||
Visible DORI Range Table | ||||
Lens | 5.3 to 159 mm | |||
Detection | 104 to 3,120 m (341.2 to 10,236.2 ft) | |||
Observe | 41.6 to 1,248 m (136.5 to 4,094.5 ft) | |||
Recognize | 20.8 to 624 m (68.2 to 2,047.2 ft) | |||
Identify | 10.4 to 312 m (34.1 to 1,023.6 ft) | |||
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. | ||||
