3results about How to "Improve data interaction performance" patented technology

The invention discloses an electric vehicle virtual simulation system based on multidisciplinary linkage and a test method. The method comprises the following steps: constructing a multidisciplinary joint simulation environment; executing closed-loop simulation of the to-be-tested automatic driving algorithm; vehicle dynamics response simulation; vehicle subsystem simulation and feedback; scene construction and test execution; and outputting and evaluating a test result. By integrating multidisciplinary commercial simulation software, a multidisciplinary joint simulation platform for scene generation, sensor simulation, a vehicle control system and an electromechanical system is constructed, so that key test scene construction, multi-class sensor data simulation, core control module modeling and high-fidelity simulation of key components such as a battery, a motor and thermal management are realized; a complete solution is provided for research and development of electric vehicles and intelligent driving technologies, and the comprehensive requirements of new energy vehicles and intelligent driving systems for multidisciplinary refined simulation are met.

The application provides a high-speed, high-efficiency and low-cost semiconductor optical communication device and a preparation method thereof. The high-speed, high-efficiency and low-cost semiconductor optical communication device comprises a first Bragg reflector, first to Nth active layers arranged in sequence along a first direction on one side of the first Bragg reflector, wherein N is an integer greater than or equal to 2; first to N-1th tunnel junctions, wherein any nth-1th tunnel junction is located between an nth-1th active layer and an nth active layer, n is an integer greater than or equal to 2 and less than or equal to N; first to N-1th current limiting layers arranged along the first direction, wherein any nth-1th current limiting layer is located on the side of the nth-1th tunnel junction along a second direction, and the nth-1th current limiting layer has an overlapping projection on the sidewall of the nth-1th tunnel junction along the second direction; and wherein the second direction is perpendicular to the first direction.

This application discloses a highway tunnel system based on the open-source HarmonyOS. The system includes end-side components, edge-side components, and cloud-side components connected via communication. Each end-side component includes a controller and an adapter. The controller connects to the electromechanical equipment deployed in the highway tunnel and automatically networks with the adapter. The adapter also connects to the electromechanical equipment deployed in the highway tunnel. This application forms a "cloud-edge-end" topology through the end-side, edge-side, and cloud-side components, achieving centralized management and unified monitoring of the electromechanical equipment in the highway tunnel, reducing the workload and cost of manual inspections. Simultaneously, utilizing the distributed soft bus of the open-source HarmonyOS system enhances the communication efficiency and data interaction capabilities between the end-side, edge-side, and cloud-side components, improving the accuracy and timeliness of tunnel event detection and reducing false alarm rates. In the event of a fault, the end-side, edge-side, and cloud-side components can quickly coordinate and respond, reducing the time required for multi-department coordination, effectively shortening troubleshooting time, and improving operational efficiency.