• Spatial Information Research
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• v.21 no.6
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• pp.57-67
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• 2013

GPS based car navigation systems show significant problems in such environment as a tunnel, a road surrounded by high buildings. In this study, we thus propose a method to determine positions and attitudes using only in-vehicle sensory data without a GPS. To check the feasibility of this method, we constructed a system to acquire in-vehicle sensory data and reference data simultaneously. We acquired test data using this system, estimated the trajectory based on the proposed method and evaluated the accuracy of both the sensory data and the trajectory. The speed and angular velocities provided by the in-vehicle sensors include 1.1 km/h and 0.8 deg/s RMS errors, respectively. The estimated trajectory using these data shows 20.8 m RMS errors for a 15 minute drive. In future, if we further combine additional sensors such as a camera and a GPS, we can achieve a high accurate navigation system at a low cost without an expensive high-grade external IMU.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.11
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• pp.2471-2477
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• 2010

lately, vehicle blackbox increasing importance and usability Is needed accuracy and variety of information. because, blackbox help to analyze the exact cause of the accident and use as objective evidence in vehicle-related crime. In the paper, to overcome the limitations of the existing black box, use various sensors and vehicle information blackbox store current state of the vehicle with OBD-II protocol using vehicle state information and store exact current location and direction information of the vehicle with Gyro sensor and GPS and use global time of GPS for synchronization of information. In addition, blackbox back the information up with wifi. because, when blackbox damaged, dirvers were able to verify the information.

• The Journal of the Korea institute of electronic communication sciences
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• v.14 no.6
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• pp.1019-1024
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• 2019

In this paper, we plan to design and manufacture a new sleeping child check system using image and PIR sensors. Therefore, it plans to implement a system that can prevent in-vehicle accidents that can occur due to presence of human and certain temperature inside the vehicle by collecting data from PIR sensors and temperature sensors with the main control device based on Arduino. In addition, the values of sensors can be linked with Bluetooth communication or Wi-Fi communication to send information to the mobile phone, and the sensor values can be printed by texting on the screen. It also plans to use raspberry pie and camera modules to build a display and smartphone streaming service inside the vehicle. Through this, the objective of this study is to prevent safety accidents in school vehicles by making experiments and research in this paper recognize 100% inside the vehicle with the quantitative goal of PIR sensors.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.10a
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• pp.76-79
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• 2010

lately, vehicle blackbox increasing importance and usability Is needed accuracy and variety of information. because, blackbox help to analyze the exact cause of the accident and use as objective evidence in vehicle-related crime. In the paper, to overcome the limitations of the existing black box, use various sensors and vehicle information blackbox store current state of the vehicle with OBD-II protocol using vehicle state information and store exact current location and direction information of the vehicle with Gyro sensor and GPS and use global time of GPS for synchronization of information. In addition, blackbox back the information up with wifi. because, when blackbox damaged, dirvers were able to verify the information.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.5
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• pp.287-291
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• 2010

In this paper, we designed and implemented mobile object automatic system based on senor networks for telematics. For developing this system, we gather the various sensing data through wireless communication method using zigbee sensor networks and analyze them in monitoring equipment. And we enable the driver to recognize the car state information on the whole by interfacing analyzed data to telematics unit. And, we implemented automatic controller that can control temperature and humidity in car automatically by actuating air conditioner based on the data that was monitored throughout temperature sensor, humidity sensor and brightness sensor based on sensor networks.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.908-910
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• 2013

현재 지능형 자동차와 관련된 연구들은 끊임없이 발전되고 지속되고 있다. 차량에는 다양한 통신모듈이 장착되어 내/외부로 통신이 가능하며, 송수신된 데이터를 처리하기 위한 모듈은 모든 데이터에 대한 병목현상이 발생하지 않도록 정보를 제공하는 연구도 활발하게 진행되고 있다. 하지만 이러한 스케줄링 된 센서 정보는 내부에서만 사용이 가능하며, 외부로 센서 정보를 제공하기 위한 인터페이스 모듈에 대한 연구는 현재 진행되고 있지 않다. 본 연구에서는 차량에 부착된 다중 센서의 데이터를 외부와 연결하여 데이터를 송수신할 수 있는 인터페이스 모듈을 설계하는 것에 목적을 둔다.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.4
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• pp.671-678
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• 2020

In this paper, a wireless measurement system has been developed which can measure the deformation of a tire in real time by utilizing strain gauge sensors and Zigbee wireless communication. A strain gauge sensor is mounted inside the tire and then the strain on the tire is obtained using the DSP module. The acquired sensor values are transmitted into the vehicle by radio communication. The wireless receiver module installed inside the vehicle can monitor the deformation of the tire in real time. The deformation of the tire can be used for measuring the load applied to each tire or the speed of the tire. The load or speed applied to the tires are essential parameters for the stable control of autonomous vehicles.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1238-1241
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• 2012

오늘 날 무선 통신의 범위나 그 서비스가 널리 사용됨에 따라, 무선 통신 모듈의 개발 기술 및 그 활용도가 점차 확대되고 있으며 그에 따라서 IT 융합 산업들이 많이 나타나고 있는 추세이다. 본 연구는 차량의 상태를 가져오기 위하여 OBD-II 통신을 이용하고 획득한 데이터를 외부 서버로 전송하여 차량 내부에서 상태를 확인하는 시스템이 아닌 차량 외부에서 확인이 가능한 시스템을 구현하였다. 차량에 장착 된 각종 OBD-II 정보 및 다른 센서들로부터 정보를 읽고 사용자가 보기 쉽게 변환한 후, 무선 통신 모듈을 이용하여 외부 데이터 서버로 전송을 하는 차량 상태 확인 시스템을 구현하였다. 개발한 시스템은 가상의 차량 상태 시뮬레이터와 실제 차량에서 테스트를 진행하였으며 발생된 차량 내부정보는 OBD-II 커넥터를 이용하여 전송하였으며, 본 시스템은 에러 및 손실 없이 해당 데이터가 수신 되는 것을 확인하였다. 또한 이 데이터를 무선 통신 모듈 이용하여 외부 서버로 데이터를 전송을 하였을 때 똑같은 데이터가 에러 없이 송신되는 것을 확인 하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06b
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• pp.106-109
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• 2011

본 논문에서는 자동차 내부에 무선 센서 네트워크를 구축하여 데이터를 획득하고 처리하는 시스템을 개발하였다. 자동차 관리 시스템은 자동차 외부의 주행상황에 대한 정보를 받으며, 동시에 자동차 내부의 상태를 점검하고 사용자에게 내부 정보를 보여줌으로서 전문적인 지식 없이도 자신의 차를 유지 및 관리할 수 있도록 한다. 특히 사용자에게 접근이 용이하게 구현되어 승차자가 느끼는 시스템 접근의 어려움을 감소시키고 실질적인 편의를 도모한다. 시스템 구성은 차체 내부 데이터를 수집하는 단말 노드, 시리얼 통신용 수신 게이트웨이, 차체 정보를 처리하는 인터페이스 응용으로 분류된다. 자동차 관리 시스템의 성능을 확인하기 위해, 관련 하드웨어와 프로그램을 간략히 설명한다. 이를 위해 무선 센서 네트워크와 센싱 하드웨어의 특징을 기술하고, 이를 이용한 차량의 각종 전기신호와 센서들을 통합 제어하는 시스템을 제시한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.08a
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• pp.95-98
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• 2008

The vehicle has many technique change from The requirement of the safety the energy environment and convenience dimension is an enlargement toe. This is keeping changing the paradigm of the vehicle industry rapidly. The change to be technical such brought the intelligence of the former control device. And this organizes a sensor network among each systems and makes new traffic system. This paper a standard framework based on Sensor. We call it Vehicle Management System. The VMS used MOST network and It is able to make the stability of the component swap time or vehicle order the greatest.