• Title, Summary, Keyword: Emergency controller

Search Result 83, Processing Time 0.051 seconds

Design of Multiple Channel Wireless Remote Control System for Unmanned Vehicle (무인차량용 다중채널 무선원격 제어시스템의 설계)

  • Kim, Jin-Kwan;Ryoo, Young-Jae
    • Journal of Korean Institute of Intelligent Systems
    • /
    • v.24 no.5
    • /
    • pp.489-494
    • /
    • 2014
  • In this paper, a design of multiple channel wireless remote control system for unmanned vehicle is proposed. One of serious problems of the previous wireless remote control system is that it does not work when a control channel is damaged in case of emergency because it's composed of single control channel. Therefore, we propose the multiple channel wireless remote system which is composed of a portable wireless remote controller and a stationary wireless remote controller. The portable wireless remote controller and stationary wireless remote controller are designed and the multiple channel wireless remote control system for unmanned vehicles in developed. By applying to the unmanned vehicle to check its performance. The wireless remote control system is tested. Emergency stop using the portable wireless remote controller is tested when the stationary wireless remote controller is damaged. Also, emergency stop using the stationary wireless remote controller is tested when the portable wireless remote controller is damaged. The result of emergency stop test shows satisfied performance.

Development of Digital controller for emergency power generating system Using Micro-Controller (마이크로컨트롤러를 이용한 비상발전계통의 제어장치 개발)

  • Jeong, Eull-Gi;Jeon, Hee-Jong;Shon, Jin-Geun;Na, Chae-Dong;Lee, Seong-Bum
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.100-102
    • /
    • 2001
  • This paper resents digital controller of emergency power generator system. The controller offers an integrated alternative for Genset control, metering and remote monitoring. Proposed controller used 80c196kc one chip microprocessor for digital control, it measures parameters of generator and provides output signals to control starting and stopping of generator. Additionally protection and alarm functions are considered to system stability. As almost parts of controller are embedded by digital microprocessor and FPGA techniques, the controller has a more flexible feature and an improvement of precision. The developed system has a big merit economically and is suitable for any kW size generator.

  • PDF

A Study on Design and Algorithm of Emergency Lamp Controller for the Alarm Security (도난 경계 경보기용 비상등 컨트롤러의 설계 및 알고리즘에 관한 연구)

  • 윤석암;박종복;윤형상;최장균;차인수;김원배;조명현
    • Proceedings of the KIPE Conference
    • /
    • /
    • pp.43-47
    • /
    • 1998
  • In this paper we present the method that improve alarm security system using the electronic circuits added the emergency lamp by our proposed Algorithms. In conventional method the emergency lamp of warning & alarm system was not executed perfectly its performance because of battery with short life. For improving this problem we, using Peripheral Interface Controller IC, designed the circuit added the emergency lamp for an warning & alarm system and for prevent from stopping the electric current, and compared our proposed method with conventional method. By designing the circuit to stop up over charge we can extend life of battery, use of a stoppage of electric current in emergency and according to the lightness around. Therefore we are very convenient and profitable in our life. In this future we will study the method to lower the cost of architecture for practical utilization.

  • PDF

Development of Advanced Emergency Braking Algorithm for the enhanced longitudinal safety (종방향 안전도 향상을 위한 자동비상제동 알고리즘 개발)

  • Lee, Taeyoung;Yi, Kyongsu;Lee, Jaewan
    • Journal of Auto-vehicle Safety Association
    • /
    • v.5 no.1
    • /
    • pp.56-61
    • /
    • 2013
  • This paper presents a development of the Advanced Emergency Braking (AEB) Algorithm for passenger vehicles. The AEB is the system to slow the vehicle and mitigate the severity of an impact when a rear end collision probability is increased. To mitigate a rear end collision, the AEB comprises of a millimeter wave radar sensor, CCD camera and vehicle parameters of which are processed to judge the likelihood of a collision occurring. The main controller of the AEB algorithm is composed of the two control stage: upper and lower level controller. By using the collected obstacle information, the upper level controller of the main controller decides the control mode based not only on parametric division, but also on physical collision capability. The lower level controller determines warning level and braking level to maintain the longitudinal safety. To decide the braking level, Last Ponit To Brake and Steer (LPTB/LPTS) are compared with current driving statues. To demonstrate the control performance of the proposed AEBS algorithm's, closed-loop simulation of the AEBS was conducted by using the Matlab simlink and CarSim software.

  • PDF

Unified Controller for 100kVA Emergency Generator (100kV급 비상발전기용 통합제어기)

  • Jeong, C.Y.;Cho, J.G.;Baek, J.W.;Lee, J.J.;Kim, Y.J.;Yoo, D.W.
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.2801-2803
    • /
    • 1999
  • An unified controller for emergency generator is presented to control AVR and Governor and l00kVA power conditioner. This controller is operated to compensate current harmonics and asymmetries caused by nonlinear load and unbalance loads. The power conditioner shapes the source current sinusoidal in phase with source voltage and allows the generator to maximum power even to the single phase load. Also this power conditioner allows that three phase generator synchronizes with single phase main source and load sharing. An l00kVA generator system was built and the unified controller is realized with DSP(TMS320C32PCMA). Experimental results for many load conditions are presented to verify the performance of the unified controller.

  • PDF

EMERGENCY BRAKING CONTROL OF A PLATOON USING STRING STABLE CONTROLLER

  • Kang, Y.;Hedrick, J.K.
    • International Journal of Automotive Technology
    • /
    • v.5 no.2
    • /
    • pp.89-94
    • /
    • 2004
  • In this paper, a safe control strategy is considered in the situation when a platoon of vehicles need to decelerate rapidly. When the vehicles ate spaced closely, it is known that the reference information should be transmitted to the whole platoon to minimize the undesirable effects of small leader disturbances. However, the vehicle control should also depend on the preceding vehicle position to maintain the desired distance. Tracking the preceding vehicle position can lead to amplification of the control input along the following vehicles, therefore the vehicles in the rearward generally exert larger maximum control input than the vehicles in the front. The theoretical bounds for the $i^{th}$ vehicle control input are calculated using a linear vehicle and controller model. In the simple illustrative example, the designed controller maintains string stability, and the control inputs of the following vehicles stay within bounds.

Robust Wheel Slip Controller for Vehicle Stability Control

  • Kwak, Byung-Hak;Park, Young-Jin
    • 제어로봇시스템학회:학술대회논문집
    • /
    • /
    • pp.174.4-174
    • /
    • 2001
  • Vehicle stability control system can enhance the vehicle stability and handling in the emergency situations through the control of traction and braking forces at the individual wheels. To achieve the desired performance, the wheel slip controller manages the hydraulic braking system to generate the desired braking force at each wheel. In this study, we propose the wheel slip controller for the generation of the braking forces based on multiple sliding mode control theory with the pulse width modulation. The proposed controller follows to the slip ratio and the brake pressure the desired ones so that the vehicle stability controller can Intervene braking force at each wheel. We show the validity and usefulness of the proposed controller through computer simulations.

  • PDF

IoT Enabled Smart Emergency LED Exit Sign controller Design using Arduino

  • Jung, Joonseok;Kwon, Jongman;Mfitumukiza, Joseph;Jung, Soonho;Lee, Minwoo;Cha, Jaesang
    • International journal of advanced smart convergence
    • /
    • v.6 no.1
    • /
    • pp.76-81
    • /
    • 2017
  • This paper presents a low cost and flexible IoT enabled smart LED controller using Arduino that is used for emergency exit signs. The Internet of Things (IoT) is become a global network that put together physical objects using network communications for the purpose of inter-communication of devices, access information on internet, interaction with users as well as permanent connected environment. A crucial point in this paper, is underlined on the potential key points of applying the Arduino platform as low cost, easy to use microcontroller with combination of various sensors applied in IoT technology to facilitate and establishment of intelligent products. To demonstrate the feasibility and effectiveness of the system, devices such as LED strip, combination of various sensors, Arduino, power plug and ZigBee module have been integrated to setup smart emergency exit sign system. The general concept of the proposed system design discussed in this paper is all about the combination of various sensor such as smoke detector sensor, humidity, temperature sensor, glass break sensors as well as camera sensor that are connected to the main controller (Arduino) for the purpose of communicating with LED exit signs displayer and dedicated PC monitors from integrated system monitoring (controller room) through gateway devices using Zig bee module. A critical appraisal of the approach in the area concludes the paper.

Study of Fuzzy Control Algorithm of Security Alarm System and Integrated System with PIC-Emergency Lamp Controller

  • Yoon, Suk-Am;Park, Chong-Bock;Yoon, Hyung-Sang;Choi, Jang-Gyun;Cha, In-Su;Kim, Won-Bae;Cho, Myung-Hyun
    • Proceedings of the KIPE Conference
    • /
    • /
    • pp.410-413
    • /
    • 1998
  • In this paper, we present the method that improve alarm security system using the electronic circuits added the emergency lamp by our proposed Algorithms. In conventional method the emergency lamp of warning & alarm system didn't work perfectly its performance because of battery with short life. For improving this problem we, using Peripheral Interface Controller IC, designed the circuit added the emergency lamp for an warning & alarm system and for prevention against stopping the electric current, and compared our proposed method with conventional method. By designing the circuit to stop up over charge we can extend life of battery, use for a stoppage of electric current in emergency and according to the lightness around. Therefore we are very convenient and profitable in our life. In the future we will study the method to lower the cost of architecture for practical utilization.

  • PDF

Design of a Robust Controller for a Watertight Damper Driving System (수밀댐퍼 구동장치의 강인제어에 관한 연구)

  • Han, Seung Hun;Jang, Ji Seong
    • Journal of Drive and Control
    • /
    • v.14 no.2
    • /
    • pp.45-51
    • /
    • 2017
  • Semi-submersible drilling rigs are offshore plants that perform functions such as ocean exploration for oil and gas acquisition, drilling and production, and storage and unloading of crude oil and gas. Semi-submersible drilling rigs use watertight dampers as emergency buoyancy holders. Since the watertight damper is an emergency shutoff device, it is mainly driven by a pneumatic driving system that can operate without a power supply. The pneumatic driving system has highly non-linear characteristics due to compressibility of air and external disturbance such as static and Coulomb friction. In this paper, a new control algorithm is proposed for a watertight damper driving system based on the sliding mode control with a disturbance observer. To evaluate control performance and robust stability of the designed controller, the control results were compared with the results obtained using the state feedback controller. As a result, it was confirmed that the pneumatic driving system for driving the watertight damper using the sliding mode controller with a disturbance observer can obtain excellent control performance against the parameter changes and the disturbance input.