High Speed Networks per applicazioni mobili, protocolli e funzionalità

Transcription

1 High Speed Networks per applicazioni mobili, protocolli e funzionalità Giorgio Malaguti, Ph.D. E.S.T.E. Technology

2 Automotive Trends 2

3 Changes in automotive connectivity 3

4 The connected vehicle of 2020 Source: Infotainment: Thinking Outside the Center Stack How Much Connectivity? Egil Juliussen, Ph.D. Principal Analyst, Infotainment & ADAS, HIS Automotive Sept. 20,

5 Automotive Challenges Increasing Number of ECUs Rising number od SW functions and lines of codes Communication network with increased bandwidth, reduced latency time 5

6 How to deal with the Challenges? Distributed Current Approach Organized Domain Approach Disruptive Cloud Approach 6

7 The first use cases that required a High Speed Network 7 Source: Ten+ Years Automotive Ethernet Alexander Maier, BMW AG, Germany, Automotive Ethernet Congress, 2015

8 BroadR-Reach : Innovation in Ethernet 100BASE-TX operates with unidirectional transmission per wire pair At least 2 wire pairs required for dull duplex data transmission OABR PHY, 1000BASE-T* operate with bi-directional transmission per wire pair 8

9 OABR Standards Based Physical Layer 9 Source: BroadR-Reach Technology: Enabling one pair Ethernet Ali Abaye, Ph.D. Senior Director, PHY and Automotive Broadcom Corporation, Automotive Ethernet Congress, 2015

10 Bandwidth Efficiency of BroadR-Reach Technology Achieves 100Mbps in < ½ the bandwidth and with 2x fewer wire pairs that 100BASE-TX Lower emissions, improved immunity 10 Source: BroadR-Reach Technology: Enabling one pair Ethernet Ali Abaye, Ph.D. Senior Director, PHY and Automotive Broadcom Corporation, Automotive Ethernet Congress, 2015

11 BroadR-Reach Ethernet for Automotive 100Mps Ethernet Phy Single unshielded twisted pair design Reduces Cost, Reduces Weight Meets Automotive EMC requirements Source: BroadR-Reach Technology: Enabling one pair Ethernet Ali Abaye, Ph.D. Senior Director, PHY and Automotive Broadcom Corporation, Automotive Ethernet Congress,

12 O.P.E.N. Alliance TC1 BroadR-Reach Specs Coordinates the effort of al TCs, reviews and clarifies the specification for all the members TC2 Enabling Technologies for BroadR-Reach Cables, connectors and harness definition for high quality industrial production TC3 Higher Data Rate Ethernet for Automotive 1000BASE-T1 (TRPGE, IEEE 802.3bp) TC4 Tools Indentify (and mantain the list of) the tools to develop/test/design Automotive Ethernet networks TC8 ECU conformance testing Requirements on AE ECUs and netowork testing and development of test specifications TC10 AE Sleep/Wake-Up Specification of the functionalities and needs of an Ethernet Sleep and Wake-up 12

13 Enabled Technologies: AudioVideo Bridging Scenario Head Unit streams Movie to the Rear Seat Entertainment Video data is received by the RSE, Audio to the Ethernet Amplifier Audio and Video need to be «lip synced» with about 10ms accuracy 13

14 Enabled Technologies: Time Sensitive Networks Traffic Shaping Resource reservation Credit based shaper 802.1Qav Time Aware Shaper 802.1Qbv Cyclic queuing and forwarding 802.1Qch Stream reservation 802.1Qat Stream Reservation Protocol Enhancements and Performance Improvements 802.1Qcc Path Control and reservation 802.1Qca Dependability Low Latency Frame Replication and Elimination for Reliability 802.1CB Per-Stream Filtering and Policing 802.1Qci Time Sync Frame Replication and Elimination for Reliability 802.1CB Per-Stream Filtering and Policing 802.qQci Precision Time Protocol 1588v2 Generalized Precision Time Protocol 802.1AS Enhancements for gptp 802.1AS-Rev Fault-tolerant clock 14

15 Scalable Service-Oriented MiddlewarE on IP (SOME/IP) Autosar (4,1) Service based communication, a middleware composed by: Service Discovery Event notifications Remote Procedure Call Copyright E.S.T.E. Srl 2016 Giorgio Malaguti, Ph.D. - E.S.T.E. Srl 5/10/

16 Summary (automotive) Networks will move to hierarchical, domain-based architectures (with backbone?); The factor cost, weight, and energy saving remain critical for success Networks develop in an evolotionary way, driven by open standards CAN, Flexray, etx, remain for body and safety-critical communication Ethernet for high data rate networks (and backbone? And controls?) Ethernet use cases include: «end-of-line» flashing, ADAS, infotainment Copyright E.S.T.E. Srl 2016 Giorgio Malaguti, Ph.D. - E.S.T.E. Srl 5/10/