As the core technology of smart transportation, car-road collaboration achieves comprehensive improvement of traffic safety and efficiency through real-time information interaction between vehicles and road infrastructure.
Car smart screen integrates communication modules such as 5G and V2X (vehicle wireless communication technology) to receive traffic data from roadside equipment (such as traffic lights and sensors) in real time, and integrates the perception information of the vehicle's own sensors (cameras, radars). This "car-road-cloud" full-link data fusion makes the smart screen a gathering node for traffic information, providing a basis for subsequent decision-making and interaction.
Based on car-road collaboration data, car smart screen can dynamically display the real-time status of the road ahead, such as traffic light countdown, accident warning, construction section prompts, etc. For example, through collaboration with roadside signal machines, the smart screen can calculate the "green wave speed" of the vehicle passing the green light in advance, and guide the driver to adjust the speed through voice or vision, reduce the number of stops, and improve traffic efficiency.
Traditional vehicle-mounted systems rely more on driver decisions, while smart screens under car-road collaboration achieve active intervention through algorithm models. For example, when congestion is detected at the intersection ahead, the smart screen can combine high-precision maps with real-time traffic conditions to automatically plan the optimal detour route, and coordinate the timing of traffic lights at upstream and downstream intersections to achieve "road right allocation in the time dimension" and reduce traffic delays.
As the core entrance for human-vehicle interaction, car smart screen reduces the driver's dependence on physical buttons through technologies such as voice control and gesture recognition. For example, in an emergency, the driver can quickly obtain road condition information or initiate a rescue request through voice commands, and the system will automatically synchronize the vehicle's location and status to the cloud to achieve "one-click rescue".
Car smart screen is not only a receiver of information, but also a participant in the vehicle-road collaborative ecosystem. For example, through crowdsourcing mapping technology, the smart screen can use vehicle driving data to update high-precision maps in real time, providing more accurate navigation services for other vehicles. In addition, the smart screen can also collaborate with roadside equipment to achieve advanced functions such as vehicle platoon driving and intersection collaborative control.
In vehicle-road collaboration, car smart screen needs to have high fault tolerance. For example, when the network signal is interrupted, the smart screen can provide emergency driving assistance based on local sensor data; when the cloud decision conflicts with the roadside equipment command, the system needs to verify through a multi-source data fusion algorithm to ensure the accuracy of the command.
With the evolution of autonomous driving technology, car smart screen will further expand the functional boundaries. For example, through deep integration with smart cockpits and smart chassis, the full-link closed loop of "perception-decision-execution" can be realized; or through AR-HUD (augmented reality head-up display) technology, navigation, road conditions and other information can be directly projected into the driver's field of vision to improve driving safety.
As the core hub of vehicle-road collaboration, the value of car smart screen lies not only in technology integration, but also in the reconstruction of the traffic ecology. Through information fusion, intelligent decision-making and active collaboration, smart screens are driving the transformation of automobiles from "transportation tools" to "mobile smart terminals", providing key support for traffic management in future smart cities.
