Fiber optic GNSS integrated inertial navigation system gyroscope sensors Attitude
Product Description
The GI500-A0 fiber optic integrated navigation system is based on high-precision closed-loop fiber optic gyroscopes, accelerometers, and high-end GNSS receiving boards. It is implemented through multi-sensor fusion and navigation calculation algorithms, providing high-precision heading, velocity, and position information to the outside world, meeting the requirements of high-precision measurement and control.
Main application areas
Large scale unmanned aerial vehicle reference inertial navigation
Ship Compass
Self propelled artillery orientation
Vehicle positioning and orientation
High precision mobile measurement
High precision stable platform
Product features
The system has inertial/satellite integrated navigation mode and pure inertial mode.
Inertial navigation has a built-in GNSS board. When GNSS is effective, inertial navigation can combine with GNSS for navigation and provide users with combined navigation parameters such as position, altitude, velocity, attitude, heading, acceleration, angular velocity, etc. At the same time, it outputs GNSS position, altitude, velocity, and other information.
When GNSS is ineffective, it can enter pure inertial mode (i.e. GPS fusion has never been performed after power on, and if the fusion is lost again, it belongs to integrated navigation mode). After activation, it has precise attitude measurement function, can output pitch and roll heading, and pure inertial can static seek north.
Technical indicators
| Items | Test Conditions | A0-Indicators | B0-Indicators |
| Positioning accuracy | GNSSValid, single point | 1.2m(RMS) | 1.2m(RMS) |
| GNSSValid,RTK | 2cm+1ppm(RMS) | 2cm+1ppm(RMS) | |
| Position holding (GNSS failure) | 1.5nm/h(50%CEP),5nm/2h(50%CEP) | 0.8nm/h(CEP),3.0nm/3h(CEP) | |
| Heading accuracy | North-seekingit self |
0.1°×sec(Lati), *Lati:latitude (RMS),10min |
0.06°×sec(Lati),Static base 5min alignment; 0.03°×sec(Lati),Static base 5min alignment;*Lati:latitude (RMS) |
| Course keeping (GNSS failure) | 0.05°/h(RMS),0.1°/2h(RMS) | 0.02°/h(RMS),0.05°/3h(RMS) | |
| Attitude accuracy | GNSS Valid | 0.03°(RMS) | 0.01°(RMS) |
| Attitude holding (GNSS failure) | 0.02°/h(RMS),0.06°/2h(RMS) | 0.01°/h(RMS),0.03°/3h(RMS) | |
| Speed accuracy | GNSS Valid, single pointL1/L2 | 0.1m/s(RMS) | 0.1m/s(RMS) |
| Speed retention (GNSS failure) | 2m/s/h(RMS),5m/s/2h(RMS) | 0.8m/s/h(RMS),3m/s/3h(RMS) | |
| Fiber optical gyro | Measuring range | ±400°/s | ±400°/s |
| Bias stability | ≤0.02°/h | ≤0.01°/h | |
| Quartz flexibleaccelerometer | Measuring range | ±20g | ±20g |
| Bias stability | ≤50µg(10s Average) | ≤20µg(10s平均) | |
| Communication interface | RS422 | 6waysThe baud rate ranges from 9.6 KBPS to 921.6 KBPS. The default baud rate is 115.2 KBPSThe maximum frequency is 1000Hz(raw data), and the default frequency is 200Hz | |
| RS232 | 1 wayThe baud rate ranges from 9.6 KBPS to 921.6 KBPS. The default baud rate is 115.2 KBPSThe maximum frequency is 1000Hz(raw data), and the default frequency is 200Hz | ||
| Electrical characteristics | Voltage | 24～36VDC | |
| Power consumption | ≤30W | ||
| Structural characteristics | Dimension | 199mm×180mm×219.5mm | |
| Weight | 6.5kg | ≤7.5kg(non-aviation)≤6.5kg (aviation optional) | |
| Environment | Working temperature | -40℃~+60℃ | |
| Storage temperature | -45℃~+65℃ | ||
| Vibration (with damping) | 5~2000Hz,6.06g | ||
| Impact (with shock absorption) | 30g,11ms | ||
| Reliability | Lifetime | >15years | |
| Continuous working time | >24 | ||
Size
L199mm x W180mm x H219.5mm(L x W x H)
