INS620-232
GNSS/INS Integrated Navigation Smart Terminal
The A&I INS620-232 adopts GNSS/MEMS fusion technology, integrating a three-axis gyroscope, a three-axis accelerometer, and a GNSS module. It combines satellite navigation with inertial navigation sensors and features a built-in fusion algorithm for positioning and attitude determination. This allows it to provide high-precision, high-dynamic, real-time compensated three-axis attitude and position information.Whether in complex environments such as indoors, tunnels, or underground parking garages, it can deliver accurate real-time vehicle positioning, speed measurement, and heading information. When satellite signal quality degrades or is lost, the module can rely on inertial navigation technology to maintain accurate positioning and measurement for extended periods without the need for odometer support.

Features
L1 Frequency GNSS Reception Compatible with Multiple Systems
Supports multi-constellation L1 band signals including GPS L1, BeiDou B1, Galileo E1, QZSS L1, and GLONASS G1, enhancing positioning reliability and coverage.
High-Precision Positioning and Speed Measurement Capability
Offers 1.5-meter CEP horizontal positioning accuracy and 0.1 m/s CEP ground speed accuracy, meeting the requirements of high-dynamic and high-precision navigation.
Robust Inertial Assistance and Anti-Jamming Performance
Supports automatic inertial navigation positioning in the absence of GNSS signals, with multipath signal detection and interference suppression capabilities, ensuring continuous navigation in complex environments.
High Sensitivity and Standardized Communication Protocol
Equipped with a built-in high-gain LNA, offering sensitivity up to -165 dBm; the default baud rate is 115200 bps, supporting the NMEA-0183 standard protocol for easy system integration and data parsing.
| GPS Parameters | |
|---|---|
| Signal Reception Types | 120 tracking channels and a dedicated search engine |
| L1 frequency band supports GPS L1, BeiDou B1, Galileo E1, QZSS L1, and GLONASS G1 | |
| SBAS:WAAS, EGNOS, MSAS, GAGAN | |
| Sensitivity | Tracking: -165dBm |
| Cold Start Acquisition: -148dBm | |
| Hot Start Acquisition: -159 dbm | |
| Navigation Positioning: -165dBm | |
| TTFF (Automatic) | Cold Start: 28 seconds (AVG) @ -130 dBm |
| Warm Start: 25 seconds (AVG) @ -130 dBm | |
| Hot Start: 1 second (AVG) @ -130 dBm | |
| Horizontal Positioning Accuracy | < 1.5m CEP @-130 dBm |
| Inertial Navigation Accuracy | In inertial navigation mode without odometer: meter-level accuracy (3% CEP @ 120s) |
| Acceleration Accuracy | Without odometer: 0.1 m/s² |
| Dynamic Range | Speed: 515 m/s Altitude: 18,000 m Maximum Acceleration: 4G |
| Data Update Rate (Hz) | 0.2, 0.5, 1, 2, 5, 10, 20, 50, and 100 |
| Electrical | |
| Power Consumption | < 200mW |
| Operating Voltage | 9V~36V |
| System | |
| NMEA-0183 Protocol | Support |
| Communication Method | UART232, default 115200 bps |
| Physical | |
| Dimensions | 40x32x16mm |
| Weight | 121g |
| Operating Temperature | -40℃~85℃ |
| Cable Specifications | Molex 4-Pin, L=3000±50mm |
