Development of Automotive Multimedia System using the Wireless Optical Communications
- 1. Sang Yub Lee Embedded Software Research Center Senior Researcher
- 4. Wired + Wireless 4 SMSC *MOST Forum 2011
- 5. Wired + Wireless 5 *MirrorLink Consortium 2014 Car Connectivity - MirrorLink MirrorLink is based on a set of well established, non-proprietary technologies. It uses standard Internet technologies (such as Internet Protocol) for compatibility with a wide range of devices The synchronous network provides excellent Quality of Service and seamless connectivity for audio/video streaming
- 6. Wired + Wireless 6 Car Connectivity – MOST Wireless proposed network system is consist of MOST devices with WOC module as an access device in ring network The proposed MOST- WOC network system which is linked with MOST network system has the same data rate as 150Mbps The synchronous network provides excellent Quality of Service and seamless connectivity for audio/video streaming *WOC : Wireless Optical Communications (MOST Wireless)
- 8. System Model 8 Car Connectivity – MOST Wireless WOC I/F • INIC (OS81110) • MLB 6 Data Processing : • MLB 6 • IOCompanion (OS85650) • I2C/I2S Data Routing • I2C/I2S • INIC(OS81110)
- 9. System Model 9 MOST Control and Packet Frame on Air MOST Control and Packet Frame MOST Packet Frame MOST Control Frame MOST Audio
- 13. 13 WOC Physical interface MOST-WOC System Module Spec. HW • Wavelength 650nm • Data Rate : 150Mbps • Effective Range : 0.1m ~ 1.0m • Optic lens : Spherical Lens • MCU (32bit) SW • Firmware based • NetService v3.0 1WOC Optic Module 2WOC System Module
- 14. 14 WOC Physical interface MOST-WOC Platform Spec. HW • CortexA9 Dual Core • LPDDR 2G, eMMc 4G • WQXA(2560x1600) Display Panel • Companion IO : IOC • INIC 2 Port SW • Android Version 4.2.x • Kernel 3.4.x • ADB(Android Debug Bridge) • NetService v3.0 1 2 WOC Optic Module MOST Module 3 MOST-WOC linked Platform
- 16. 16 MOST-WOC Demonstration • Front Side • Back Side Media Data Control Data MOST Packet Data MOST Control Data Display Output Audio Output
- 17. 17 MOST-WOC Demonstration TEST Scenario H/H to WOC System Module • MP4 Video file and Control Signal WOC System Module to MOST-WOC Platform • MOST Packet Data and Control Data MOST-WOC Platform to Internal Processor • MOST Control Data and Audio output
- 18. 18 MOST wireless connectivity Mirror Link MOST-WOC Wireless Interference Yes (2.4GHz ISM) No Real time streaming service No Yes In-Vehicle Network connection No Yes Adaptation of Before Market - Yes Adaptation of After Market Yes - Data Rate Fluctuating 150Mbps (no MIMO) 150Mbps RSE(Rear Seat Ent.) support No (only Head Unit) Yes
- 20. 20 MOST wireless connectivity MOST-WOC Connectivity MOST-WOC can be optimized streaming data transmitting solution without ceasing communication on vehicle environment It can be satisfied with reducing the weight and ensuring the reliability for the free of electro- magnetic problems The MOST Seamless Car Connectivity Solution