HMD solution
The ATIS2.0 HMD solution is the most accurate Head Tracking System (HTS) on the market for helicopter application.
Monocular symbology display
- Field of view: 25°
- Definition: 800 x 600
- High brightness and contrast
- Day & night symbology with standard NVG
- Flight symbology
- Customised symbology designed by pilots
Hybrid technology
The Head Tracking System (HTS) uses hybrid technology combining Optical measurement done by two cameras and GyroMEMs.
High precision cameras provide absolute optical localisation independantly with a precision up to 2 mrds.
The hybridised Line of sight calculation provide a high level of redundancy using 3 independent sources: 2 high precision cameras + 1 GyroMEMs
Using one fast inaccurate instrument (Gyros) and two accurate but slow sensors (Camera) to get fast & accurate head positions
Headgear
Easily customized to any basic helmet, a second skin is added including:
- 15 Leds + optics set to form the patterns
- Power board to manage & protect leds
- Intelligent boards with gyro providing:
- Helmet angles rates
- Memory for gyros and patterns calibration
Architecture
HMD Characteristics
| Tracking | |
| Motion Box | Cockpit dependent, typical values are: 500 x 500 x 700mm (XYZ) for optical sensors, whole cockpit using IMUs. |
| Attitude Box | Cockpit dependent, typical values are: ±110°, +60°/-30°, ±45° (Az,El,Ro) for optical sensors, ±180°, ±90°, ±90° (Az,El,Ro) using IMUs. |
| Accuracy | Up to 2 mrds, cockpit depedent. |
| Latency | 0 using predictive mode (3ms predictive mode disabled) |
| Display | |
| Field of view | 25° |
| Definition | 800 x 600 pixels |
| Resolution | 0.5 mrd |
| Contrast | >1.2:1 @ 34000 cd/m² |
| Camera | |
| Dimensions | 60 x 55 x 105 mm |
| Weight | 0.45 kg |
| Bore Sight | |
| Dimensions | 67 x 57 x 127 mm |
| Weight | 0.50 kg |
| Helmet | |
| Dimensions | size dependent |
| Weight | 2.0 kg |
| Computer | |
| Dimensions | 280 x 160 x 370 mm |
| Weight | 2.0 kg |
| Power | 28 VDC (< 150 W) |