• Title/Summary/Keyword: In-vehicle Blackbox

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Empirical Bushing Model For Vehicle Dynamic Analysis (차량동역학해석을 위한 실험적 부싱모델 개발)

  • Sohn, Jeong-Hyun;Kang, Tae-Ho;Baek, Woon-Kyung;Park, Dong-Woon;Yoo, Wan-Suk
    • Proceedings of the KSME Conference
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    • 2004.04a
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    • pp.864-869
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    • 2004
  • In this paper, a blackbox approach is carried out to model the nonlinear dynamic bushing model. One-axis durability test is performed to describe the mechanical behavior of typical vehicle elastomeric components. The results of the tests are used to develop an empirical bushing model with an artificial neural network. The back propagation algorithm is used to obtain the weighting factor of the neural network. Since the output for a dynamic system depends on the histories of inputs and outputs, Narendra's algorithm of 'NARMAX' form is employed in the neural network bushing module. A numerical example is carried out to verify the developed bushing model.

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Empirical Bushing Model using Artificial Neural Network (인공신경망을 이용한 실험적 부싱모델링)

  • 손정현;유완석;박동운
    • Transactions of the Korean Society of Automotive Engineers
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    • v.11 no.4
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    • pp.151-157
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    • 2003
  • In this paper, a blackbox approach is carried out to model the nonlinear dynamic bushing model. One-axis durability test is performed to describe the mechanical behavior of typical vehicle elastomeric components. The results of the tests are used to develop an empirical bushing model with an artificial neural network. The back propagation algorithm is used to obtain the weighting factor of the neural network. Since the output for a dynamic system depends on the histories of inputs and outputs, Narendra algorithm of 'NARMAX' form is employed to consider these effects. A numerical example is carried out to verify the developed bushing model.

Implementation of integrability hardware for knowing driving status data with OBD-2 network (OBD-2 네트워크를 위한 통합 OBD-2 커넥터 설계)

  • Baek, Sung-Hyun;Jang, Jong-Wook
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2011.10a
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    • pp.511-514
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    • 2011
  • Recently, devices such as smartphone and vehicle blackbox and EDR(Evern Data Recorder knowed automotive real-time control and driving data to use OBD-2(in-vehicle network). when devices receive vehicle driving data, communication way use each Wifi, Bluetooth. but if user and driver change device to use OBD-2 connect, the device differ communication network way. and driver buy and change OBD-2 connect. In this paper, to remedy one's shortcomings, there integrate Bluetooth and Wifi network module and design integrability hardware as any another device know vehicle real-time control and driving data with one integrability connect.

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Integrity Verification in Vehicle Black Box Video Files with Hashing Method (차량용 블랙박스 영상파일의 무결성 검증에 해시함수 이용 방법)

  • Choi, Jin-young;Chang, Nam Su
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.1
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    • pp.241-249
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    • 2017
  • Recently, as a vehicle black box device has propagated, it has been increasingly used as a legal proof and there are the needs to verify an integrity of the video data. However, since the black box classified as the embedded system has a small capacity and low processing speed, there are limitations to the storage of video files and the integrity verification processing. In this paper, we propose a novel method for video files integrity in the black box environment with limited resources by using lightweight hash function LSH and the security of HMAC. We also present the test results of CPU idle rate at integrity verification in vehicle black box device by implementing this method, and verify the effectiveness and practicality of the proposed method.

Integration wireless network approach OBD-II connector for reading vehicle driving information (통합 무선 네트워크 접근 OBD-II 커넥터 구현)

  • Baek, Sung-Hyun;Jang, Jong-Wook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.6
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    • pp.1306-1311
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    • 2013
  • Driver for safety always check the status of their vehicle, and it is essential to understand. When driver know vehicle driving status, there is know vehicle driving status to use vehicle realtime control data by OBD-II of vehicle network and connected OBD-II connector. But, connector to receive OBD-II data differ each communication connection method to connect smart device.(such as smartphone, blackbox, EDR) if vehicle driver change another smart device from smart device(such as android -> iphone, iphone -> android), vehicle driver exist the inconvenience that purchase new OBD-II connector. in this paper, As make up for the fault, there is to implement one OBD-II connector that integrate Bluetooth, Wifi, WCDMA module. as result, anything smart device was notified realtime vehicle control data through implemented one OBD-II connector in this paper

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 Lane Detection and Departure Warning System Robust to Illumination Change and Road Surface Symbols (도로조명변화 및 노면표시에 강인한 차선 검출 및 이탈 경고 시스템)

  • Kim, Kwang Soo;Choi, Seung Wan;Kwak, Soo Yeong
    • Journal of Korea Society of Industrial Information Systems
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    • v.22 no.6
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    • pp.9-16
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    • 2017
  • An Algorithm for Lane Detection and Lane Departure Warning for a Vehicle Driving on Roads is proposed in This Paper. Using Images Obtained from On-board Cameras for Lane Detection has Some Difficulties, e.g. the Increase of Fault Detection Ratio Due to Symbols on Roads, Missing Yellow Lanes in the Tunnel due to a Similar Color Lighting, Missing Some Lanes in Rainy Days Due to Low Intensity of Illumination, and so on. The Proposed Algorithm has been developed Focusing on Solving These Problems. It also has an Additional Function to Determine How much the Vehicle is leaning to any Side between The Lanes and, If Necessary, to Give a Warning to a Driver. Experiments Using an Image Database Built by Collecting with Vehicle On-board Blackbox in Six Different Situations have been conducted for Validation of the Proposed Algorithm. The Experimental Results show a High Performance of the Proposed Algorithm with Overall 97% Detection Success Ratio.

Development of Vehicle Motion Monitoring Module based on Smartphone (스마트폰을 이용한 차량용 주행 모니터링 모듈 개발)

  • Hwang, Jae-Young;Chung, Shin-Il;Chung, Yeon-Ho
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.9
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    • pp.1903-1909
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    • 2011
  • This paper presents the development of a core module for integrating data from vehicle by the convergence technology of mobile telematics and black-box. This emerging technology can be referred to as Black-box in Mobile (BIM). For the development of BIM, sensors and cameras were realized in a driving robot. Relevant hardware implementation was achieved to verify the functionality of BIM. The transmitted signal from the driving robot was confirmed in an Android-based portable device. Existing Black-boxes were mostly developed by major transportation companies and focused only on storing data. The proposed BIM offers not only data storage but also easy-to-use real-time monitoring while in motion. In addition, the vehicle can be monitored on parking through shock sensors. This development is considered commercially viable as it is achieved via software implementation.

An Advanced User-friendly Wireless Smart System for Vehicle Safety Monitoring and Accident Prevention (차량 안전 모니터링 및 사고 예방을 위한 친사용자 환경의 첨단 무선 스마트 시스템)

  • Oh, Se-Bin;Chung, Yeon-Ho;Kim, Jong-Jin
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.9
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    • pp.1898-1905
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    • 2012
  • This paper presents an On-board Smart Device (OSD) for moving vehicle, based on a smooth integration of Android-based devices and a Micro-control Unit (MCU). The MCU is used for the acquisition and transmission of various vehicle-borne data. The OSD has threefold functions: Record, Report and Alarm. Based on these RRA functions, the OSD is basically a safety and convenience oriented smart device, where it facilitates alert services such as accident report and rescue as well as alarm for the status of vehicle. In addition, voice activated interface is developed for the convenience of users. Vehicle data can also be uploaded to a remote server for further access and data manipulation. Therefore, unlike conventional blackboxes, the developed OSD lends itself to a user-friendly smart device for vehicle safety: It basically stores monitoring images in driving plus vehicle data collection. Also, it reports on accident and enables subsequent rescue operation. The developed OSD can thus be considered an essential safety smart device equipped with comprehensive wireless data service, image transfer and voice activated interface.

Traffic Accident Analysis using Blackbox Technique (블랙박스 기법을 이용한 교통사고 분석)

  • Hong Yu Sik;Kim Cheon Sik;Yun Byeong Ju;Jo Yeong Im
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2005.11a
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    • pp.452-455
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    • 2005
  • In order to reproduce the traffic accident, It must save the data automatically which traffic accident 30 seconds before using black box. The Black Box can detect traffic crash accidents automatically, and record the vehicle's motion and driver's maneuvers during a pre-defined time Belied before and after the accident. But it is not easy for the police to catch running away criminal. Because, criminal can remove proof if it is 2 hours or 3 hours at least. Therefore, in this paper, in order to catch a hit and run driver in the traffic accident road, it developed an structured Query Language Server and made parts database algorithm.

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