At the IEEE Standards AssociaTIon's Ethernet & IP @ AutomoTIve Technology Day, the Time Network (TSN) standard is on the rise. A number of automotive chip manufacturers have demonstrated the latest TSN solutions, and it is expected that future automotive networks will integrate TSN-controlled Ethernet backplanes and even further integrate microcontrollers (MCUs), security modules and various protocols. In fact, TSN is not a new issue, but it is a hot area that has recently received significant attention, especially in the automotive market. TSN is one of the current work of the IEEE Standards Association to add a range of extensions to the existing 802.1 and 802.3 Ethernet standards to further ensure its deterministic performance. The so-called "car-to-the-network" that all automotive OEMs have long expected, will in fact be an 802.3 Ethernet implementation via TSN, with not only the new physical layer (PHY) standard 100BASE-T1 and Gb-class PHYs. Lightweight unshielded twisted pair (UTP) copper cables can be used for the vehicle's Ethernet backbone. The TSN architecture realized through Ethernet network has attracted the interest of many manufacturers and organizations in the industry because it can increase product differentiation and improve the driver's driving experience. In order to widely deploy this important technology architecture, industry standards organizations are standardizing this vehicle network technology. TSN currently undergoing standardization process, including time and synchronization, Frame Pre-empTIon, Scheduled Traffic, Enhanced Stream Reservation Protocol (SRP), Stream-by-Stream Filtering and Management (Per) -Stream Filtering and Policing) and frame copying and erasing. According to IEEE, Time and Synchronization (IEEE P802.1AS-REV) is a revision of the existing Audio-Video Bridging (AVB) standard, thereby increasing support for multiple time domains. The frame priority application (IEEE P802.3br) mechanism divides the interference frame into smaller "segments", so that the key data packets in the transmission have a higher priority than the non-critical data packets. This means that critical data does not have to wait for all non-critical data to complete before it is transmitted, thus ensuring a faster transmission path. The Traffic Scheduling (IEEE 802.1Qbv) option divides Ethernet traffic into different types, each of which remains to a specific time access network, creating a class-specific protection "channel." Enhanced SRP and performance improvement based on IEEE 802.1Qcc, the user network interface (UNI) is added to achieve remote centralized network configuration. The Stream-by-Stream Filtering and Management (IEEE 802.1Qci) mechanism, also known as flow control, is used to avoid traffic overload conditions (possibly due to software errors on endpoints or switches) affecting the receiving node or port. Traffic control can also be used to block malicious devices or attacks. In addition, with the TSN option IEEE P802.1CB for "frame replication and elimination for reliability", reliable communication can be enforced regardless of link failure, cable breakage and other errors. This option ensures that replicas of critical traffic can be transported in a network with disjoint sets of paths, leaving only any packets that arrive at the destination first, resulting in seamless redundancy. Ultimately, once these new deterministic features are settled, Ethernet will become a more viable option to replace the traditional networks used in today's cars, such as CAN, LIN, MOST and FlexRay, and eventually become the car's Core network backbone. At the exhibition site, many companies in the industry have demonstrated TSN-ready vehicle-based Ethernet solutions, targeting real-time control tasks of Ethernet networks and non-critical data competing for bandwidth, such as passenger entertainment audio and video synchronization. Streaming, etc. Chip supplier Innovasic showcases two Ethernet solutions that support TSN and non-critical data. The TSN gateway solution demonstrated uses its fido5000 Real-Time Ethernet Multi-Protocol (REM) switch, a configurable component that the company released about three years ago. In addition, Innovasic also introduced a pre-installed TSN evaluation kit with mature TSN features - 802.1AS and 802.1Qbv, and promised to further support other options through software updates after gradual stabilization. Innovasic showcases TSN switch chips Innovasic Chief Operating Officer Jordon Woods is pleased to watch the progress of the car used to network. "We have developed deterministic networks for more than a decade and have all the necessary expertise and technology to integrate our switches with other IPs and provide complete TSN SoCs." According to Woods, it is expected to further promote the growth of Innovasic's automotive business by establishing a good partnership in the automotive sector (automotive customers currently account for only 10-15% of the company's business). At Bosch's booth, you can see how a ball can be balanced in the center of the actuator plate through real-time visual processing. You can also fine tune the ball to see how the actuation plate compensates for the deviation immediately and keeps the ball back to the center to balance. In a TSN network set up in this manner, the camera feeds into a real-time image processing unit that will compete for bandwidth with data from the network traffic generator. Different switches will activate some of the TSN functions while increasing traffic on the network; therefore, if the frame priority function is missing, the ball cannot be immediately balanced at the actuator center in the event of interference. Bosch's TSN Gateway Solution Incremental Encoder,Linear Scale Encoder,Dual Concentric Rotary Encoder,Dc Servo Motor Encoder Yuheng Optics Co., Ltd.(Changchun) , https://www.yhencoder.com
