en.Wedoany.com Reported - The inaugural meeting of the Vehicle Optical Communication Working Group and a seminar on key technologies were recently held in Pingshan, Shenzhen. Dr. Chen Shanzhi, Vice President and Chief Engineer of China Information and Communication Technologies Group (CICT), was appointed as an expert advisor to the working group and delivered a keynote speech elaborating on the Vehicle Passive Optical Network (V-PON) technology pathway.

The meeting was hosted by the Electric Vehicle Industry Technology Innovation Strategic Alliance of the China Society of Automotive Engineers, bringing together over 100 participants, including academicians of the Chinese Academy of Engineering, corporate executives, and experts from the automotive and communications industries. The aim was to build industry consensus and clarify technology roadmaps and industrialization directions. Chen Shanzhi, along with Academician Sun Fengchun and Academician Lian Yubo, was appointed as an expert advisor to the working group. The working group is led by Wang Wenwei, Executive Director of the Shenzhen Automotive Research Institute of Beijing Institute of Technology, with Luo Wenyong, an expert from FiberHome Telecommunication Technologies Co., Ltd., serving as Deputy Director.

In his speech titled "Innovation and Development Recommendations for Vehicle Passive Optical Network (V-PON) Technology," Chen Shanzhi pointed out that the intelligence and connectivity of new energy vehicles are driving a communication revolution. Intelligent connected vehicles rely on external connectivity for high-precision maps and traffic information, and internally on intelligent systems to process massive amounts of perception data, placing higher demands on communication capabilities. The automotive electronic and electrical architecture is transitioning from a distributed to a centralized domain-controlled structure, posing challenges to the bandwidth and reliability of the in-vehicle backbone network. It is estimated that by 2026, L3 autonomous vehicles will require bandwidth exceeding 100 Gbps, while safety-critical systems demand microsecond-level deterministic latency. Traditional copper-based technologies such as CAN and LIN are approaching their limits in terms of bandwidth, electromagnetic compatibility, weight, and cost, making them insufficient to support future evolution.

Chen Shanzhi analyzed that optical fiber, with its advantages of ultra-large bandwidth, resistance to electromagnetic interference, lightweight design, long-distance transmission, and cost-effectiveness, makes "fiber optics in vehicles" an inevitable trend. By comparing the pros and cons of V-PON with point-to-point solutions and in-vehicle Ethernet in terms of application requirements, architecture, functionality, and intellectual property, he concluded that China holds a global leading advantage in the V-PON field across industry, standards, and experience, making V-PON the superior choice for the vehicle optical communication technology pathway.

Chen Shanzhi delved into the architecture and key technologies of V-PON, analyzing the challenges in vehicle applications. He emphasized that to build a fully domestically produced and independently controllable V-PON system, breakthroughs must be made in key technologies and components such as BOSA optical chips, optical devices, core V-PON ONU/OLT MAC chips, and automotive-grade optical fiber cables and connectors. Compared to traditional PON networks, V-PON has significantly different requirements in terms of operating environment, transmission distance, splitting ratio, carried services, service life, and reliability, necessitating customized optimization for vehicle environments. The implementation of V-PON technology relies on the coordinated breakthrough of five key technologies: transmission mechanisms, lightweight and reliable protocol stacks, modulation and scheduling algorithms, encryption and authentication security, and core components.

It is reported that CICT, as the only enterprise globally integrating optical fiber and cable, optoelectronic chips, optical modules, and optical communication equipment, has been conducting research on vehicle optical communication since 2022. It has already partnered with several leading automakers, completing a cumulative 20,000 km of real-vehicle road tests for vehicle wiring harnesses and optical modules. The group is currently deploying its "fiber optics in vehicles" business, forming a comprehensive V-PON solution and a product matrix for vehicle optical fiber components, covering automotive-grade wiring harnesses, optical network systems, automotive-grade chips, vehicle camera modules, vehicle sensing modules, and fiber-based domain controllers, to promote the multi-dimensional development of vehicle optical communication.

Chen Shanzhi proposed that advancing the industrialization of V-PON requires coordinated efforts in five areas: industry collaboration, standard setting, testing and certification, industrial policy, and talent cultivation, to build an industrial ecosystem and accelerate technology deployment. He concluded that V-PON technology provides a solution to the communication bottlenecks of intelligent connected vehicles, meeting stringent requirements for high bandwidth, low latency, and high reliability, while leveraging China's industrial foundation and technological advantages in the optical communication field. By overcoming key V-PON technologies and promoting standardization and industrialization, China is poised to lead the "optical fiber replacing copper" transformation in vehicle communication within the intelligent connected vehicle industry.

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