SUN-GN900 high-precision receiver builds a solid "space-time foundation" for unmanned driving

【Smart CityOnline Brand Column】Today, as autonomous driving moves from the "test field" to the "city streets", whether a car can travel safely, smoothly, and reliably is no longer solely dependent oncameraHow far it can see and how wide the radar can scan depends more on whether it knows clearly - 'Where am I at this moment'. Positioning is the "first button" of autonomous driving. In the real driving environment of complex road conditions, high dynamic motion, and strong electromagnetic interference, the SUN-GN900 high-precision positioning receiver is becoming an indispensable "spatiotemporal anchor" in the unmanned driving perception system with its full system, full frequency band, and highly integrated hard core strength.

Urban canyons, viaducts underneath, trees sheltering... What unmanned vehicles fear most is not rainstorm, but "losing stars". The SUN-GN900 is equipped with a 1408 channel full constellation receiver engine and supports Beidou B1/B2/B3, GPS L1/L2C/L2P/L5, GLONASS G1/G2, Galileo E1/E5a/E5b, and QZSS L1/L2/L5. The redundant reception of multi system and tri frequency signals enables vehicles to maintain stable satellite tracking in complex environments, greatly reducing the risk of positioning drift or lock loss caused by single system signal interruption. For autonomous driving, this means fewer sudden brakes, more stable paths, and safer human-machine co driving.

The requirement for positioning accuracy in autonomous driving has never been at the meter level, but at the centimeter level. SUN-GN900 offers two high-precision positioning modes. The RTK differential positioning accuracy can reach 0.8cm+1ppm, which can fully meet the strict requirements of vehicles in scenarios such as lane keeping, automatic lane changing, and precise parking. PPP satellite station differential can still achieve positioning accuracy within 10 centimeters in areas without ground reference station coverage, such as mining areas, remote suburbs, and inter provincial highways, and continue to output stably after convergence. By combining both, the SUN-GN900 can be integrated into urban RTK networks and independently achieve high-precision positioning in network free environments, truly realizing the concept of "more accurate with network, usable even without network".

Autonomous vehicles, whether they are low-speed logistics vehicles, unmanned cleaning vehicles, or industrial grade vehiclesdroneIt is extremely sensitive to load size, weight, and power consumption. The SUN-GN900 integrates multi frequency antenna, high-precision board, Bluetooth module, and built-in lithium battery into one, with a total size of only 80 × 80 × 41mm and a weight of only 170 grams. By communicating with the upper computer through Bluetooth SPP 2.1 or USB, the data update rate can be adjusted from 1-20Hz, which can be used for fine control of low-speed work vehicles and also meets the high-frequency position output requirements of high-speed unmanned vehicles. Its 1/4 nut interface is compatible with universal mounting components and can be quickly integrated into car roofs, brackets, or equipment compartments. It is easy to deploy and widely adaptable.

Autonomous vehicles often need to face the test of long-term outdoor operation. The SUN-GN900 is powered by a built-in lithium battery and can work continuously for 6 hours at room temperature, meeting the needs of single shift operations. It can also be flexibly recharged through a Micro USB interface. The working temperature ranges from -20 ℃ to 70 ℃, and can adapt to various working conditions from cold storage areas to hot urban roads. It should be noted that the device itself is not waterproof. It is recommended to use it in conjunction with a protective shell or installed in a car or covered area in unmanned driving applications to ensure long-term reliability.

In the long-distance race of autonomous driving, perception is the eyes, decision-making is the brain, and high-precision positioning is the origin of the coordinate system that connects the physical world with digital trajectories. SUN-GN900 is not just a receiver, it is a highly integrated, reliable, and accurate spatiotemporal sensing unit designed for autonomous driving. When vehicles travel between cities and wilderness with centimeter level confidence, and every lane change and every meter of path is precise, SUN-GN900 is becoming an invisible safety base for autonomous driving.

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