• Title/Summary/Keyword: gyro sensor

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A Design and Implementation of a Bluetooth-Based Safety Equipment for Bicycle Using Smartphone (스마트폰을 활용한 블루투스 기반의 자전거 안전장비 설계 및 구현)

  • Park, Won-Ho;Lee, Ki Young
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.919-922
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    • 2013
  • Currently, society thinks human-health is very important. As a result, the number of individual bikes is increasing. And bicycle accident rate is increasing every year. We have developed the safety-equipment utilizing a smartphone. Because, in order to reduce the rate of bicycle accidents. The working principle is that the connection between the bicycle and safety equipment with built-in Bluetooth chip. Information of bike-driving Is measured using a smartphone with built-in gyro sensor. I made an algorithm for specifying a direction by using the values of the gyro sensor. With this algorithm, it is possible to reduce the accident rate of the bicycle.

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Design of 3D Running Game using Gyro Sensor in Mobile Environment

  • Choi, Joo-Young;Kim, Seok-Hun;Kwak, Ho-Young;Kim, Soo Kyun
    • Journal of the Korea Society of Computer and Information
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    • v.26 no.10
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    • pp.77-82
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    • 2021
  • In our society, the current smart devices have been commercialized and more time than most people are in contact with smart devices than the time in contact with the PC, it shows the same trend in terms of the game industry. Thus in the study, it was to try to make a game by utilizing the characteristics of only the smart devices in mobile environments among them by using the gyro sensor implementing the movements of characters. In particular, undergraduate student made various attempts to implement a single game using the sensor used in smart devices. In this paper, we have planned the adventure 3D running game that allows users to easily fun to play. Our goal is to implement one stage. We have discussed that you have designed and implemented.

Selective Advertisement Transmission System Design Using Smart Sensor

  • Lim, Myung-Jae;Chung, Dong-Kun;Kim, Kyu-Dong;Kwon, Young-Man
    • International journal of advanced smart convergence
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    • v.10 no.4
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    • pp.66-71
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    • 2021
  • In this paper, we sought ways to accept and reject advertisements using the function of a smartphone gyro sensor to enable selective transmission and reception of YouTube advertisements by linking the gyro function of mobile phones. In the case of YouTube advertisements, the skip button is activated after the advertisement is played for a certain period of time (about 5 seconds) before and after the video is played. During the time the advertisement is maintained, it can be used to achieve various goals such as increased website traffic, brand awareness, and sales induction. Since this type of advertisement is not a setting in which the transition takes place immediately, it can be seen as the most suitable setting to strengthen brand awareness. However, due to the nature of the YouTube advertising system, it is often discarded through users' skipping behavior in the process of sharing and reproducing information. Therefore, in this paper, we implemented an optional advertisement transmission system that applies the principle of gyroscope to minimize wasted advertisements and selectively maintain desired advertisements in consideration of the transmission and reception aspects of advertisement broadcasts. It measures rotational repulsive force with directional stability and car wash characteristics, and uses algorithms to identify the slope and angular speed of mobile phones to ensure that advertisements are transmitted and received. Through this, it is expected that advertisement transmission can be performed on the side of an advertisement provider, and selective advertisement reception can be performed on the side of a user.

The Application of Orbital Modeling and Rational Function Model for Ground Coordinate from High Resolution Satellite Data (고해상도 인공위성데이터로부터 지상좌표 결정을 위한 궤도모델링 및 RFM기법 적용)

  • Seo, Doo-Chun;Yang, Ji-Yeon;Lee, Dong-Han;Im, Hyo-Suk
    • Aerospace Engineering and Technology
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    • v.7 no.2
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    • pp.187-195
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    • 2008
  • Generation of accurate ground coordinates from high resolution satellite image are becoming increasingly of interest. The primary focus of this paper is to compute satellite direct sensor model (DSM) and rational function model (RFM) for accurate generation of ground coordinates from high resolution satellite images. Being based on this we presented an algorithm to be able to efficiently ground coordinates about large area with introducing RFM(rational function model) method applied to rigorous sensor modeling standing on basis of satellite orbit dynamics and collinearity equation, and sensor modeling of high-resolution satellite data like IKONOS, QuickBird, KOMPSAT-2 and others. The general high resolution satellite measures the position, velocity and attitude data of satellite using star, gyro, and GPS sensors.

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Development of Algorithm for Measuring Oscillating Angles and Periods of Ships in a Seaway (파랑중 실선의 동요각 및 동요 주기 추정 알고리듬 개발)

  • Choi, Kwang-Sik;Won, Moon-Cheol;Ryu, Sang-Hyun;Lew, Jae-Moon;Ji, Yong-Jin
    • Journal of the Society of Naval Architects of Korea
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    • v.47 no.2
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    • pp.141-149
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    • 2010
  • It is essential to find oscillating angles and periods in a seaway when designing and manufacturing stabilizers. It is difficult to find oscillating angles and periods in high speed turning and they vary with ship speed and wave heading angles, therefore, proper algorithm to measure oscillating periods in a seaway. In the present study, three kinds of algorithms are developed to measure oscillating angles periods in a seaway. Dual axis tilt sensor of low price is used to measure oscillating angles, and the effect of lateral accelerations on tilt sensor have been reduced by the fusion algorithm using the gyro sensor signals. Analog and digital filters are applied to minimize the noise of the signals. Three kinds of algorithms, zero crossing, peak to peak and moving zero crossing algorithm, are developed to measure oscillating periods in a seaway. It is found that the moving zero algorithm showed the best results in the sea trials.

A Study on Management Functions of Intelligent Reflectors Environment (지능형 반사경의 관리 기능 연구)

  • Kang-Hyun Nam
    • The Journal of the Korea institute of electronic communication sciences
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    • v.18 no.3
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    • pp.433-440
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    • 2023
  • When the reflector is hit by a vehicle or returned by a storm, an event is generated by the impact sensor and a trigger is operated. The trigger processing algorithm of this paper compares the X, Y, and Z values of the gyro sensor with the registered values and proposes to drive them to the original values by the operation of the 3-axis driving motor. And by recognizing the vehicle license plate, if the vehicle is stolen or a social problem, information is provided to the police operation network. When the reflector is stolen or moved, it has a registered GPS value, so it operates the theft monitoring function to process it.

A Study on Performance Comparison of Multipurpose Function Electronic Measurement Reference Station Prototype System using LED and Gyro Sensor (LED 및 자이로센서를 이용한 다기능 전자측량기준점 프로토타입 시스템의 성능비교에 관한 연구)

  • Park, Sung-Kyun;Jung, Se-Hoon;Park, Dong-Gook;Sim, Chun-Bo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.8
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    • pp.1247-1255
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    • 2013
  • In this paper, We proposes multipurpose function electronic measurement reference station prototype system based on LED and Gyro Sensor. This system have developed to possible with real time data collection and landscape illumination and surrounding diastrophism monitoring for that analyze problems of existing planted reference station. Hardware for the proposed system consists of a gyro sensor module to detect diastrophism, GPS module to process location information, environment sensor module to process surrounding environmental data and CDMA wireless data communication to send the collected data to server. In addition, this paper intends to enhance system management and future usability in a way that applies LED, QR-code, RFID and Solar cell module to outer side of electronic measurement reference station to improve usability of H/W for electronic measurement reference station. Lastly, this paper conducted current amount evaluation to supply stabilized electricity with its various functions in the proposed multipurpose function electronic measurement reference station and it's proved that this system can be stably operated with its electricity loss factor of 2.29% loss factor. And this paper conducted a qualitative comparison with existing electronic measurement reference station system in order to evaluate superiority of the proposed electronic measurement reference station.

A Study on Smart Phone Real-Time Motion Analysis System using Acceleration and Gyro Sensors (가속도센서와 자이로센서를 이용한 스마트폰 실시간 모션 분석 시스템에 관한 연구)

  • Park, Ju-Man;Park, Koo-Rack
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2013.01a
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    • pp.63-65
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    • 2013
  • 본 논문에서는 가속도센서와 자이로센서를 통해 측정된 값을 무선 통신을 이용하여 스마트폰으로 전달하여 실시간으로 모션을 분석하는 스마트폰 실시간 모션 분석 알고리즘을 제안한다. 3축 가속도 센서의 실시간 모션 분석과 중력가속도를 사용한 모션 분석의 경우에는 장소나 높이 또는 주변의 자력에 따라 정확한 값을 획득하여 분석하기 어려운 점이 있다. 이에 본 논문에서는 가속도 센서와 자이로 센서를 통하여 보다 정밀한 모션 분석을 하였으며, 이를 이용하여 모션을 실시간으로 분석하여 활용하면 스포츠와 의학 등 다양한 분야에서 활용할 수 있을 것이다.

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A study for tracking directional compensation in a mobile robot by the gyro sensor (Gyro를 이용한 이동 로보트의 주행 방향각 보상에 관한 연구)

  • 배준영;이상룡
    • 제어로봇시스템학회:학술대회논문집
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    • 1991.10a
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    • pp.783-786
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    • 1991
  • Generally, The position of mobile robot moving on the plane is measured by the method of dead reckoning, using the encoder system coupled on a wheel axis. But it is noted that the encoder system cannot check the slip of a wheel, often occurring in tracking of the mobile robot. In this study, using velocity angular velocity sensor with a tuning fork vibration system, the system is developed which can measure the directional angle of positional variables on the mobile robot. By measuring the variations of tracking direction mobile robot equipped with this system, following result is found; In spite of the slip at a wheel when measuring the tracking directional angle, the error occurs in the range of .+-. 1 (degree).

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An Improvement of Performance in a Satellite Antenna Tracking Control System for Mobile DAB Reception (DAB수신을 위한 이동체용 위성 안테나 트랙킹 시스템의 성능 개선)

  • Jeong Joong-Sung
    • Journal of Advanced Marine Engineering and Technology
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    • v.28 no.7
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    • pp.1178-1184
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    • 2004
  • This paper presents the development of a satellite antenna tracking control system using a plane antenna for mobile DAB(Digital Audio Broadcasting) reception. To track more rapidly in the antenna of this system, this simple tracking system only tracks a direction of azimuth using pendulum in the direction of elevation. This system should track using the AGC(Automatic Gain Control) of the signal level which can receive DAB in spite of the changing of point and movement of the mobile. The directional gyro sensor is attached to solve the delay time in the Proposed tracking algorithm. The effectiveness of both the stabilization and tracking algorithm is demonstrated through experiment measuring AGC signal level. The implemented satellite antenna tracking control system is shown to be excellent for mobile DAB reception.