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Land Force Navigation TDL645B Vehicle-mounted Optical Gyro Positioning And Orientation Equipment
1 Introduction
Incorporating laser or fiber optic gyros along with quartz accelerometers as core sensors, this vehicle-mounted optical gyro positioning and orientation system utilizes a strapdown inertial navigation architecture. It employs sophisticated navigation software to deliver real-time vehicle navigation parameters. The product series supports multiple operational modes: zero-velocity updates (ZUPT), integrated GNSS/IMU navigation, and integrated inertial/odometer navigation. This comprehensive system provides complete and continuous vehicle position, velocity, and attitude information, meeting the diverse requirements of various vehicle-mounted platforms.
2 Application field
Suitable for geodetic survey vehicles, tanks, self-propelled artillery, infantry fighting vehicles, unmanned vehicles, high-speed trains, agricultural machinery vehicles, etc.
3 Performance characteristics
Capable of alignment and initialization in static or dynamic (in-motion) states.
Features autonomous navigation, zero-velocity update (ZUPT), and integrated navigation with odometer and/or satellite-based systems.
Suitable for use in high-latitude (±65°), extremely cold, and high-altitude regions.
High reliability.
4 Main parameters
| Type | TDL645B | |
| Accelerometer | Months Bias Repeatability | ≤20μg |
| Months Scale Factor Accuracy | ≤20ppm | |
| Gyro | Bias Repeatability | ≤0.01°/h |
| Scale Factor Accuracy | ≤5ppm | |
| Random walk | ≤0.003°/√hr | |
| Features | Angular Rate | ≥±400°/sec |
| Angular Acceleration | 100000°/sec2 | |
| Acceleration | ＞25g | |
| Angular Attitude | Any Orientation | |
| Alignment time | ≤15min | |
| Input/output | 3 RS422 full-duplex serial ports, 1 100M Ethernet port | |
| Position Accuracy | North finding/orientation accuracy | ≤5m |
| Inertial navigation/odometer combination | ≤0.08%D | |
| North finding/orientation accuracy | ≤0.4mil | |
| Bearing keeping accuracy/2h | ≤0.4mil | |
| Combined navigation position accuracy | ≤0.2mil | |
| AHRS Applications Performance | Heading Accuracy | ≤0.2mil |
| Pitch & Roll Accuracy | ≤0.2mil | |
| Characteristics | Power consumption | ＜40W |
| Dimensions | -- | |
| Weight | ＜6.5kg | |
| Temperature | -40℃~60℃ | |
| Shock | 15g,Half-sine wave 11ms | |
| Input Voltage | DC24V(±25%) | |
| Cooling | Conduction to mounting plate | |
| Vibration | 20~2000Hz,6.06g | |
| MTBF | ＞15000 hours | |