Scalable, Variable-speed Time-Sensitive Ethernet

Time critical data requires low latency and deterministic data transfer. Sensor, command and control data of mission-critical, high-reliability, real-time applications such as collision avoidance, avionics require on-time delivery of critical information.nbsp; Autonomous systems fornbsp;sea, air, space vehicles, ground vehicles, robots, etc., all have requirements for time criticalnbsp;transfer.nbsp;Ethernet is ubiquitous - being used everywhere. Its large ecosystem of products and services provides key advantages -nbsp;low cost,nbsp;high availability. Not to mention the countless engineers and service technicians fornbsp;servicing such technology. However, data transferred via Ethernet network is ldquo;best-effortrdquo;nbsp;causingnbsp;significant jitter and non-deterministic. Packets across Ethernetnbsp;may be dropped. Delivery is not guaranteed. Solutions are required to overcome these problems in endpoints and network equipment (e.g., bridges,nbsp;switches, etc.) 2 standardsnbsp;defined by the industry for time-critical applications: Time-triggered Ethernet (TTE) or SAE AS6802 and Time-Sensitive Network (TSN). LeWiznbsp;developed TTE technologies (IP core, FPGA switch, endpoint chip and software) for use in endpoint and switching nodes for NASA andnbsp;DoD.nbsp;LeWiz also developed a time-critical Ethernet IP core for either TTE or TSNnbsp;(TTSN Core). TTSN Core can be used in endpoint or network infrastructure systems supporting speed up to 10Gbps and beyond. nbsp;In Phase 2 (24 months), we propose to extend TTSNnbsp;technology to (1) support the new IEEE802.1DP/SAE-AS6675 TSN for Aerospace Standard, (2) develop a multi-port, fault-tolerant bridge system for bridging TTE andnbsp;TSN networks for aerospace applicationsnbsp;and (3) develop the software for the bridge system and to support the testing. This proposal supports the new TSN aerospace standard; provides solutions for NASA to be compatible with TTE systems and networks deployed by NASA for space vehicles,nbsp;Lunar Gateways, and likely Moon base camps and others in the Artemis Program and beyond.nbsp; nbsp;