• Title/Summary/Keyword: Warning lamp

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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
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    • 1998.07a
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    • pp.43-47
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    • 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.

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A Study of Lens Design for LED Warning Light (LED 경광등 글로브 렌즈 설계에 관한 연구)

  • Shin, Kyung-Ho;Lim, Sung-Moo;Yeo, In-Seon
    • Proceedings of the KIEE Conference
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    • 2004.07c
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    • pp.1912-1914
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    • 2004
  • As the characteristics of LED disposition, LED warning light must be designed differently from general incandescent lamp warning light whose light source is located in origin. In this paper, the globe's lens of LED warning light was designed considering the LED intensity distribution and the arrangement of the LED. And prove the appropriateness of that design by simulation in LightTools which is optical design program.

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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
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    • 1998.10a
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    • pp.410-413
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    • 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.

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Operation Pattern Control of High-brightness LED Warning Light (고휘도 LED경광등 동작 패턴 제어)

  • Lim, Sung-Moo;Shin, Kyung-HO;Song, Sang-Bin;Yeo, In-Seon
    • Proceedings of the KIEE Conference
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    • 2004.11a
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    • pp.261-263
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    • 2004
  • This paper studies the lighting pattern control of a high-brightness LED warning light. The driving circuit for the warning light is composed of a full-wave rectified circuit and of a control circuit using a micro-controller (AT89c2051). The micro-controller is programmed in a suitable manner to accomodate a number of variable lighting patterns and to adjust the blinking speed. To reduce the total number of LEDs installed a special consideration is made to the bundled pattern in a lamp module which is lit simultaneously. The resultant LED warning light has merits not only over the conventional incandescent warning light on the energy saving aspect but also over some other LED-type ones in the market.

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Development of Station Safety Management System (승강장 안전 관리 시스템 개발)

  • Ku, Ja-Yl
    • 전자공학회논문지 IE
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    • v.44 no.2
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    • pp.41-46
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    • 2007
  • In this paper, we have proposed Station Safety Management System to protect station accident. we establish a sensor part near an underground rail. If a passenger approaches an underground rail, at first, lamp is shining and warning sound is ringing. nevertheless he approaches end of underground rail, At the same time, lamp is shining, warning sound is ringing, this information transfer server and train using wireless LAN. We makes this system using low cost in comparison with another system.

Development of Multi LED type Door Status Indication Lamp for rolling stock (Multi LED를 이용한 철도차량용 Door Status Indication Lamp)

  • Seo, Bum-Won;Choi, Jae-Sung;Kim, Dong-Il
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.1668-1674
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    • 2011
  • Door Inside Lamp of railway rolling stock is installed on interior of the side doors and illuminated at door opening and closing, isolation and fault. So drivers or passengers can notice the door status visually. In the past, a single color or Bi-color LED Lamps have been using and one ~ multiple lamp was used to implement the feature according to client's requirements. (Example: Total of between 2 and 4 lamps are required for the Warning / Emergency operation / Isolation / Fault.) However these design is not easy to apply if there is the mounting space restrictions and the problems such as rising costs can be caused. In addition, it has vulnerability from point of view aesthetic aspects. Therefore the lamp type has been required that has small size and number of colors in order to resolve these problems. Recently multi LED type door status indication lamp have been developed that can meet the requirements and this lamp has been applied in many railway projects. In this study, I'll introduce the general characteristics and mechanical & electrical characteristics of multi LED type door status indication lamp to help development of this kinds of lamp.

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Development of Multi LED type Door Status Indication Lamp for rolling stock (Multi LED를 이용한 철도차량용 Door Status Indication Lamp)

  • Seo, Bum-Won;Choi, Jae-Sung;Kim, Dong-Il
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.1466-1472
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    • 2011
  • Door Inside Lamp of railway rolling stock is installed on interior of the side doors and illuminated at door opening and closing, isolation and fault. So drivers or passengers can notice the door status visually. In the past, a single color or Bi-color LED Lamps have been using and one ~ multiple lamp was used to implement the feature according to client's requirements. (Example: Total of between 2 and 4 lamps are required for the Warning / Emergency operation / Isolation / Fault.) However these design is not easy to apply if there is the mounting space restrictions and the problems such as rising costs can be caused. In addition, it has vulnerability from point of view aesthetic aspects. Therefore the lamp type has been required that has small size and number of colors in order to resolve these problems. Recently multi LED type door status indication lamp have been developed that can meet the requirements and this lamp has been applied in many railway projects. In this study, I'll introduce the general characteristics and mechanical & electrical characteristics of multi LED type door status indication lamp to help development of this kinds of lamp.

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Study of Examples for Air Bag Non-deployment Including Rear Collision and Failure Phenomenon by Damage of Control Parts in Vehicle Air Bag (자동차 에어백의 제어부품 불량에 의한 고장현상 및 후방 추돌에 관련된 에어백 미전개에 대한 사례 연구)

  • Lee, Il Kwon;Kim, Young Gyu;Moon, Hak Hook
    • Journal of the Korean Institute of Gas
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    • v.16 no.6
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    • pp.102-106
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    • 2012
  • The purpose of this paper is to study the failure cases in relation to system of Air Bag in vehicle happened in the field. In the first example, it was separated the soldering parts connected the wire pin between air bag module and clock spring of air bag. Whenever the pin shake by the car's vibration, the driver verified the malfunction phenomenon appeared air bag warning lamp on instrument panel in front of driver's seat. in car inside room. The second example, it verified the warning lamp lighting phenomenon of air bag by produced the circuit plate non-contacting of single an element in air bag electronic control unit. The third example, it verified the light of air bag warning indicator lamp by separated with soldering parts connecting inner pin and resistance terminal of seat belt pretensioner using passenger seat. The fourth example, when the passenger car crash a back of truck, the former bumper get jammed under the latter as the roof height of car low less than that. Therefore, the impact of Car's collision verified that don't transfer with body frame of vehicle because of no attachment impact sensor in it.

Study of Failure Examples of Automotive Electronic Control Suspension System Including Cases with Wiring Disconnection and Air Leakage (배선 단선과 에어 누설에 관련된 자동차 ECS 시스템의 고장사례 고찰)

  • Lee, Il Kwon;Park, Jong Geon;Shin, Myung Shin;Jang, Joo Sup
    • Tribology and Lubricants
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    • v.29 no.3
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    • pp.180-185
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    • 2013
  • The purpose of this study was to analyze the tribological characteristics of the Electronic control suspension System in a car. In the first example, the cilp used to attach the front electronic control suspension(ECS) system's control actuator was fastened very tightly. Thus, the wire was cut because of continual rotation of the shock-up shover piston rod used to adjust the height of the car. This verified the disconnection phenomenon where wire damaged makes it impossible for the ECS system to send signal to the actuator. The second example, involved a minute hole that allowed gas to leak from the ECS system. As a result, the height of the car verified the down phenomenon. In the third example, the resistance of a wire measured at $0.21{\Omega}$, when the G sensor was disconnected from the system. This verified the system shutdown and lighting of the ECS warning lamp because of body interference caused by a slight pressure on the battery cover. Therefore, quality control is always necessary to ensure safety and durability of a car.

Analysis and Improvement of False Alarm Phenomenon of Emergency Hydraulic Warning Light by Shielded RF Radiation Signal (RF 방사 신호 차폐를 통한 비상 유압경고등의 비정상 점등 현상의 원인분석 및 개선)

  • Jung-Hyuk Kwon;Gyeong-Nam Kim;Byeong-Kwon Jeon;Wang-Sang Lee
    • Journal of Aerospace System Engineering
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    • v.17 no.1
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    • pp.68-78
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    • 2023
  • In this paper, improvement measures were studied for false alarm (abnormal lighting) of emergency hydraulic warning light due to RF radiation signals in aircraft. When the warning lamp of the emergency hydraulic system is lit during flight due to electromagnetic interference caused by RF radiation signals, it affects flight mission and safety which can result in efficiency degradation and maintenance of flight mission. For false alarm of emergency hydraulic warning light, root cause analysis and troubleshooting were carried out. By shielding a composite strip under fuselage of the aircraft located in the path of the RF radiation signal, the RF radiation signal flowing into the emergency hydraulic indicator was blocked. Results of applying the improvement method through ground and flight monitoring were also described.