Gasgoo Awards 2023 applicant: M2 High-precision Positioning/Combined Navigation Module from Hunan Bynav Technology Co., Ltd.

Product: M2 High-precision Positioning/Combined Navigation Module 

Description

M2 series is designed based on Alice, the brand new automotive-grade 22nm-process GNSS SoC with high performance, have the built-in high-precision measurement engine, navigation engine, inertial navigation unit and functional safety engine, which meet ASIL B functional safety level. M2 series supports high-performance NRTK/PPP/PPP-RTK solution, deep coupled combined navigation, anti-interference and L-Band/CLAS SBAS signal reception, so the modules can effectively cope with harsh environments such as satellite signal interference and loss, and provide continuous, real-time and trusted high-precision position and attitude information. It can be applied to fields such as autonomous driving, advanced driving assistance, lane-level navigation, drones and intelligent robots.

Unique advantages

1、Full-temperature calibration high-precision IMU and deeply-coupled combined navigation engine All built-in high-precision IMUs have been calibrated at full temperature, which improves key indicators such as bias stability, enhances the accuracy of dead reckoning. The built-in deep-coupled combined navigation algorithm based on Alice, can improve the quality of GNSS observation. Combining the high-precision IMU, the positioning accuracy can be improved by 2~5 times compared with the loosely-coupled algorithm in urban canyons and other harsh environments. It can reduce system complexity and cost, reduce wiring harness, and improve vehicle integration, replacing the original autonomous driving high-precision positioning unit (such as P-BOX or IMU-BOX assembly).High-precision, full-frequency and anti-jamming GNSS measurement and positioning engine  Bynav REAL (Ransac Enhanced Advanced Location) GNSS positioning engine with integrity monitoring algorithm is adopted to improve the fault tolerance rate and fixed solution rate under multipath and interference conditions in urban environment, generating more robust positioning results. According to the requirements of safety of the intended functionality and network security, signal preprocessing and adaptive interference suppression with high quantization bits are carried out for common interference signals such as vehicle-mounted anti-tracking devices and radar/airport signal towers, which greatly improves the usability and integrity of high-precision positioning in vehicle scenarios. 3、L-Band/CLAS SBAS, NRTK/PPP/PPP-RTK  With L-Band SBAS signals reception, M2 can provide high-precision positioning in environments that are not covered by conventional differential services or mobile communication services. M2 supports Beidou-3 B2b PPP solution, QZSS CLAS PPP-RTK solution and prevailing PPP-RTK differential services. It also optimizes the four bands of Beidou and Galileo to greatly improve the PPP convergence speed and the availability of high-precision positioning. 4、ASIL B functional safety level  M2 is designed based on the basis of ISO26262 ASIL B functional safety, integrating the functional safety IMU, interface, the GNSS chip (Alice with new architecture design based on functional safety requirements) and combined navigation algorithm. It can provide high-precision combined navigation with system-level functional safety for intelligent cars and autonomous driving.

Application

The products can be applied to the field such as autonomous driving, advanced driver assistance, lane level navigation, drones, intelligent robots, etc.

Prospect

The M2 series high-precision positioning/combined navigation module is designed based on the Bynav’s self-developed high-precision positioning chip Alice. It can achieve the equal positioning performance compare to PBOX within extremely limited volume (17.0x22.0mm, like two fingernails). The surface-mount P-Module solution has higher integration and cost advantages, as compared to the PBOX solution. It can significantly reduce system costs (interfaces, components, harnesses, installation, etc.) for automotive OEMs and can be directly integrated into domain-control and intelligent driving solutions of Tier 1 manufacturers, and can enhance the overall integration of intelligent driving systems as a standard feature. As the level of automotive intelligence increases, the scenarios and applications of intelligent driving become more multiple, so adapting to more edge scenarios and enhancing the user experience of intelligent driving have become key focuses for every manufacture’s intelligent driving solutions. High-precision positioning, as the only source of absolute positioning information in intelligent driving systems, becomes increasingly important and extensive use. With the exceptional product strength, Bynav will become the preferred high-precision positioning supplier for more domestic and international OEMs and Tier 1 manufacturers.