Bynav

Company overview

Bynav Technology (Hunan) Co., Ltd., based in Changsha, China, develops high-precision GNSS positioning hardware under the Bynav brand. Its range includes the Alice GNSS SoC, Alita GNSS baseband ASIC, Ripley RFIC, C1 and C2 positioning boards, M20/M21/22 and M20D/M21D GNSS/INS modules, and X1, X26, X36D, T1/T2 and X8-M2 positioning boxes. Applications for its C1 and C2 boards include surveying and mapping, precision agriculture, digital construction, deformation monitoring, industrial automation, driver license testing, autonomous driving and unmanned aircraft systems.

The C1 series combines Alita and Ripley with Bynav's REAL positioning engine. C1-8D supports eight-frequency dual-antenna operation, while C1-FD supports full-frequency dual-antenna operation. Both use base-station correction data for RTK positioning and determine heading from the antenna baseline's orientation relative to true north. Specified RTK accuracy is 1.0 cm + 1 ppm horizontally and 1.5 cm + 1 ppm vertically, both RMS. Maximum raw-data, RTK and combined RTK-and-heading output rates are 5 Hz for C1-8D and 10 Hz for C1-FD.

The Alice-based C2 series comprises C2-M20, C2-M20-U, C2-M20D and C2-M20D-U. Its positioning engine monitors observations affected by multipath and interference, and carrier semi-cycle ambiguity correction helps shorten recovery after satellite signals are reacquired. The boards measure 71 × 46 × 11 mm and weigh 17.4 g. Both U variants include Type-C; Ethernet is available on C2-M20, C2-M20-U and C2-M20D-U, while CAN FD is available on C2-M20-U, C2-M20D and C2-M20D-U. Certain tracked signals require optional or special firmware, and SPI and I2C are optional on C2-M20-U.

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