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Land Force Navigation TDL46A Vehicle-mounted Optical Gyro Positioning And Orientation Equipment
1 Introduction
The vehicle-mounted optical gyro positioning and orientation system utilizes laser or fiber optic gyroscopes combined with quartz accelerometers as its core inertial sensors. Operating on a strapdown inertial navigation system (SINS) architecture, it executes sophisticated navigation algorithms to deliver real-time positioning, orientation, and navigation data. This product line supports multiple operational modes, including Zero-Velocity Update (ZUPT), GNSS/INS integrated navigation, and odometer/INS integrated navigation. It provides comprehensive vehicle navigation parameters, catering to the requirements of diverse vehicular platform applications.
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
Suitable for use in high-latitude (±65°), extremely cold, and high-altitude regions.
Features autonomous navigation, zero-velocity update (ZUPT), and integrated navigation with odometer and/or satellite-based systems.
High reliability.
Capable of alignment and initialization in static or dynamic (in-motion) states.
4 Main parameters
| Type | TDL46A | |
| Accelerometer | Months Bias Repeatability | ≤20μg |
| Months Scale Factor Accuracy | ≤20ppm | |
| Gyro | Bias Repeatability | ≤0.008°/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 | ≤8min | |
| Input/output | 3 RS422 full-duplex serial ports, 1 100M Ethernet port | |
| Position Accuracy | North finding/orientation accuracy | ≤10m |
| Inertial navigation/odometer combination | ≤0.3%D | |
| North finding/orientation accuracy | ≤1.0mil | |
| Bearing keeping accuracy/2h | ≤1.5mil | |
| Combined navigation position accuracy | ≤0.75mil | |
| AHRS Applications Performance | Heading Accuracy | ≤0.75mil |
| Pitch & Roll Accuracy | ≤0.35mil | |
| Characteristics | Power consumption | ＜20W |
| Dimensions | 195×160×108 | |
| Weight | ＜3.9kg | |
| Temperature | -40℃~60℃ | |
| Shock | 15g,Half-sine wave 11ms | |
| Input Voltage | DC24V(±25%) | |
| cooling | Conduction to mounting plate | |
| Vibration | 20~2000Hz,6.06g | |
| MTBF | ＞20000 hours | |