• Title/Summary/Keyword: Media Oriented System Transport(MOST)

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A implement of vehicle Blackbox system with OBD and MOST network (OBD와 MOST 네트워크를 이용한 차량용 블랙박스 시스템 설계)

  • Baek, Sung-Hyun;Jang, Jong-Wook
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.10a
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    • pp.66-69
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    • 2010
  • Lately, vehicle combined vehicle and IT(Information Technology) for vehicle's safety and convenience. so, vehicles is equipped with many ECU(Electronic control unit). the ECU's transmit data about each electronic control unit with OBD(On-Board Diagnostics) Network and data about each multimedia with MOST(Media Oriented System Transport) Network. In this paper, Supplementing disadvantage of existing blackbox, Using MOST of in-vehicle multimedia network and OBD-II of in-vehicle control network, blackbox system obtain the vehicle's driving state data. so, blackbox system judge vehicle's driving state and provide vehicle's driving state information to driver. Blackbox system implement the features mentioned above. as a result, blackbox is going to be more accurate blackbox system.

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The Implementation of DSP-Based Real-Time Video Transmission System using In-Vehicle Multimedia Network (차량 내 멀티미디어 네트워크를 이용한 DSP 기반 실시간 영상 전송 시스템의 구현)

  • Jeon, Young-Joon;Kim, Jin-II
    • Journal of the Institute of Convergence Signal Processing
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    • v.14 no.1
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    • pp.62-69
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    • 2013
  • This paper proposes real-time video transmission system by the car-mounted cameras based on MOST Network. Existing vehicles transmit videos by connecting the car-mounted cameras in the form of analog. However, the increase in the number of car-mounted cameras leads to development of the network to connect the cameras. In this paper, DSP is applied to process MPEG 2 encoding/decoding for real-time video transmission in a short period of time. MediaLB is employed to transfer data stream between DSP and MOST network controller. During this procedure, DSP cannot transport data stream directly from MediaLB. Therefore, FPGA is used to deliver data stream transmitting MediaLB to DSP. MediaLB is designed to streamline hardware/software application development for MOST Network and to support all MOST Network data transportation methods. As seen in this paper, the test results verify that real-time video transmission using proposed system operates in a normal matter.

A Study on Network System Design for the Support of Multi-Passengers' Multimedia Service Based on HMI (Human Machine Interface) (다인승 차량용 멀티미디어 서비스 지원을 위한 HMI기반 네트워크 시스템 설계에 관한 연구)

  • Lee, Sang-yub;Lee, Jae-kyu;Cho, Hyun-joong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.4
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    • pp.899-903
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    • 2017
  • In this paper, it is shown the in-vehicle network architecture and implementation for multimedia service which supports Human machine interface of multi-passengers. For multi-passengers' vehicle, it has to be considered the factor of network traffic, simultaneously data transferring to multi users and accessibility to use variety of media contents for passengers compared to conventional in-vehicle network architecture system Therefore, it is proposed the change of network architecture compared with general MOST network, implementation of designed software module which can be interoperable between ethernet and MOST network and accessible interface that passenger can be plugged into MOST network platform using their device based on ethernet network system.

Implement integrated vehicle state and video recorder system with OBD-II and MOST network (OBD-II 와 MOST를 이용한 통합형 자동차 상태 및 영상 저장 시스템 구현)

  • Baek, Sung-Hyun;Jang, Jong-Wook
    • Journal of the Institute of Convergence Signal Processing
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    • v.12 no.4
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    • pp.303-308
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    • 2011
  • Vehicle black boxes that have similar functions as airplane black boxes are currently being used due to the loss of many lives and properties arising from vehicle accidents. Both black-box products and Event Data Recorder(EDR) systems are currently available in the market. Most of the existing in-vehicle black boxes, however, record only external videos and images and cannot show the vehicle's driving status, whereas EDR products record only the driving status and not external videos. To address the problem of black boxes that can record only videos and images and that of EDR systems that can record only driving data, an integrated vehicle state and video recording system that uses MOST(Media-oriented System Transport) and OBD-II(Onboard Diagnostics II) and CAM (camera) and GPS (global positioning system).

A Study on the Algorithms for MOST/Ethernet Gateway in Vehicle Network (Vehicle Network에서 MOST/Ethernet Gateway의 성능 향상 알고리즘에 관한 연구)

  • Kim, Chang-Young;Jang, Jong-Wook;Yu, Yun-Sik
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.05a
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    • pp.753-755
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    • 2010
  • As demands increase for the Infotainment System, the Multimedia Networking technology for automobile, called MOST(Media Oriented Systems Transport), has been actively applied to the automobile industry, to meet the demands of the Infotainment System. The MOST25 network technology is being restrictively equipped with some of the car models but the problems withbandwidth and compatibility has arisen. In order to solve this, the MOST150 technology has been developed and further research is being carried out to applythe technology to the automobile industry. Thus, for the effective process of the Ethernet traffic in the realization of MOST150/Ethernet Gateway for automobile, we, in the research, shall analyse the Management Mapping method, including the MOST150's Isochronous channel, the MOST Ethernet Packet Channel, and etc. and study the efficient algorithm.

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Development intelligent integrated gateway for in In-Vehicle Network (In-Vehicle Network에서 지능형 통합 Gateway 시스템 개발)

  • Jang, Jong-Wook;Oh, Se-Hwan
    • Proceedings of the Korea Information Processing Society Conference
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    • 2009.04a
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    • pp.7-10
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    • 2009
  • 본 연구에서는 차량 네트워크를 구성하는 CAN(Controller Area Network), MOST(Media Oriented System Transport)등의 버스 시스템을 중심으로 IVN(In-Vechicle Network)에 대한 선행연구와 지능형 통합 Gateway 개발 연구를 통해 통합적인 차량 상태정보 수집 및 교환을 위한 차량 Gateway를 제시하고, Soc(System on Chip)형태의 차량용 인터페이스(HMI, Human Machine Interface)를 통한 지능형 통합 GateWay 통신 기술을 OSGi의 번들 형태로 제작하여 알아본다.

Embedded System Design of Automotive Media Server Platform with the MOST Interface (MOST 인터페이스를 갖는 차량용 미디어 서버 플랫폼에 대한 임베디드 시스템 설계)

  • Kwak, Jae-Min;Park, Pu-Sik
    • Journal of Advanced Navigation Technology
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    • v.10 no.3
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    • pp.262-267
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    • 2006
  • For growing need for the multimedia application in the vehicles, the MOST protocol has been focused on. The MOST protocol supports three kinds of communication modes; short control message, asynchronous packets, and reserved synchronous stream data. Because of a variety of transportation, the MOST is suitable for various applications in vehicle environment. In this paper, we implemented embedded system which is MOST-enabled AMS platform and tested the network communication operation through the control port and the synchronous channel of the source port. We implemented the prototype platforms which communicate each other on the MOST's POF network. Moreover we implemented the DivX decoder attached AMS platform and verified the operation by transferring the video stream and the control messages through the MOST network.

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Design for MOST network device on AVR32 processor (AVR32 프로세서를 이용한 MOST 네트워크 장치 설계)

  • Park, Duck-Keun;Jeong, Sung-Hwan;Lee, Sang-Yub;Choi, Hyo-Sub;Lee, Chul-Dong
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.11a
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    • pp.27-28
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    • 2012
  • 오늘날 차량 기술에 대한 관심사는 기계적 성능에서 각종 전자장치를 사용한 기술로 이동하고 있다. 특히 자동차 내에서 각종 멀티미디어 서비스 및 여러 정보들의 통합 분석을 위해서 자동차 네트워크 기술이 각광받고 있다. 본 논문에서는 자동차 네트워크 기술 중 MOST(Media Oriented System Transport)네트워크를 사용하기 위한 장치로 저가형 장치인 MiniAMG 단말기를 제안한다. Mini AMG 단말기를 통해 어떻게 오디오 스트리밍 서비스를 제공하는지와 향후 어떠한 방향으로 사용 가능한지에 대해 기술하였다.

Development of a Multimedia Streaming System using MEP Based on MOST150 for Premium Express Buses (MOST150기반 MEP를 이용한 프리미엄 고속버스용 멀티미디어 스트리밍 시스템 개발)

  • Lee, Jae-kyu;Lee, Sang-yub;Cho, Hyun-joong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.5
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    • pp.1049-1057
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    • 2017
  • In-vehicle multimedia systems are one of the most important factors in the automotive industry. Especially, multimedia systems are more important in advanced commercial vehicles such as premium express buses. In this paper, we proposed a multimedia streaming system architecture using MEP(MOST Ethernet Packets) for premium express buses based on MOST150. We have designed and implemented the prototype of proposed multimedia streaming system. We have designed a board based on i.MX6 to operate a proposed multimedia streaming system. The software has designed a multimedia system for premium express buses based on Android which is an open source platform. MOST(Media Oriented Systems Transport) is a high-speed multimedia network technology for in-vehicle multimedia system. The MOST network is able to manage up to 64 devices and ring topology is used basically. In addition, the MOST Network meets EMI(Electro-Magnetic Interference)/ EMC(Electro-Magnetic Compatibility) requirements because it uses plastic optical fibers(POF).