This program provides a complete demonstration of the standard procedure for hardware-in-the-loop (HiL) closed-loop testing:

1. Component Activation: Activate the hardware and software components of the system.
2. Scene sending::CANoe Sends the preset GNSS scene commands to the HONGKE GNSS SimulatorThe simulator generates simulated scenes based on time, location, constellation frequency, and atmospheric conditions. The simulator generates simulated scenes according to the requirements of time, location, constellation frequency points, and atmospheric conditions to ensure that each satellite simulates the real-world distribution and transmits GNSS signals.
3. Track Generation and Transfer: The user has the option to preset the track within CANoe, or in the IPG Carmaker A virtual driving scene is set up in the simulation. Once the simulation starts, Carmaker outputs the vehicle's trajectory in real time, which is then transferred to a virtual driving scenario via the Carmaker Interface Send to Vector CANoeCANoe is responsible for reading and formatting the real-time transmission of longitude, latitude, altitude, and velocity information to the GNSS simulator at each moment in time.
4. Signal Emulation and Transmission::GNSS Simulator Simulated GNSS satellite RF signals are generated in real time from the received track data. These signals are identical to the real satellite signals that the virtual vehicle should receive at its location in the Carmaker scene. The simulator sends the signals via antenna or cable to the GNSS RF Signal Launched to theParts to be tested (DUT, e.g. T-Box/OBU)The
5. Positioning Data Processing: The device to be tested receives and processes the simulated signals, calculates its position and outputs the positioning result data (e.g. NMEA Report (or a specific CAN message).
6. Closure Assessment and FeedbackThe positioning result data is fed back to CANoe or other analysis systems and compared with the "real" position in IPG Carmaker. This enables a precise evaluation of thePositioning accuracy, latency, time to first fix (TTFF), and recapture capabilityand other core performance indicators.