By applying the Kalman filter to the combination of GNSS (Global Navigation Satellite System) and inertial navigation, the system calculates various error states associated with the satellite system and GNSS. With the integration of navigation algorithms and predictive filtering, it effectively addresses a series of challenges posed by the complex environments of examination systems and road conditions. These challenges include interference with GNSS signal reception, lack of GPS signal differentiation, limited satellite acquisition, and drift in the testing vehicle’s trajectory. This approach ensures the system’s robust adaptability to different environments.

The core components of the examination system, including the on-board industrial computer and GNSS satellite card, are sourced from renowned international and domestic brands, ensuring authoritative certifications and high quality. The combined navigation algorithm and predictive filtering enhance the system’s accuracy, effectively addressing interruptions in positioning results due to satellite signal loss. This guarantees continuous and reliable positioning and orientation data in complex environments, ensuring stable data evaluation.

Through access control and database auditing modules, the system meticulously records all connections to the database server, ensuring comprehensive security for the database system and achieving data confidentiality, integrity, and availability.

Anhui Sanlian Traffic Application Technology Co., Ltd. has established pioneering network security standards nationwide. By creating a dedicated wireless network, enhancing access control, and self-managing the network, the system prevents unauthorized devices from accessing and compromising the examination system, effectively curbing human cheating and ensuring system security.

The on-board examination equipment is highly integrated and made from a PC+ABS alloy material. The onboard computer case, constructed from the same PC+ABS alloy, combines the excellent impact resistance and heat resistance of PC with the low-temperature durability, chemical resistance, and superior electrical performance of ABS. Its perforated bottom is specially designed to enhance the cooling of the main system. The internal structure is simple, featuring a modular design for on-board hardware, which ensures high integration and stability, making installation and maintenance more convenient.

The process management system is intelligent and seamlessly compatible with the E-HuiTong Smart Vehicle Management Platform. It integrates multiple functions such as identity authentication, self-check-in, information inquiry, voice broadcasting, intelligent distribution of examination vehicles (stations), and self-certification, achieving a “one certificate for all tests” approach. This enhances service convenience while strengthening supervision of examination processes, providing a fair, just, and convenient testing environment for candidates applying for vehicle driver examinations.