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Development of Analysis Module for Marine Traffic Information Using PC Camera
Serng-Bae Moon,Geun-Sil Lee,Seung-Hwan Jun 한국항해항만학회 2005 한국항해항만학회지 Vol.29 No.4
Usually marine traffic survey has been conducted by some methods like an ocular observation using portable RADAR, a questionnaire, etc. But these should have expended a lot of manpower and expenses. In this paper, we have developed new observation module which could capture the RADAR image using PC camera simply, and allowed as to track targets on the PC monitor directly. And it has been programmed to make a database of RADAR image, target’s track and information, and analyze the marine traffic tendency in various ways like vessel number crossed over gate line, vessel’s velocity distribution in gate line, traffic density distribution, etc. We have confirmed that this module could observe and analyze the marine traffic efficiently and economically through several on-the-spot experiments.
Investigation of Stress on Seafarers by Biochemical Inspections and Heart Rate Measurements
Serng-Bae Moon,Seung-Hwan Jun 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.1 No.-
It is naturally to be expected that occupational stress on seafarers has specific characters compared to workers engaged in other industries. Because the physical rigors of working and living at sea has been endured as a part of job. The purpose of this paper is to figure out physical changes on seafarers resulted from ordinary shipboard life on the ocean-going cargo vessel. To do this, we performed biochemical inspections testing blood and urine for 28 crews, and measured heart rate of officers engaging in some bridge duties. The tests showed that creatinine, uric acid, total cholesterol, HDL-C, LDL-C of some crews fell down to level which could make a bad impact on human body. And the heart rate of deck officers had vibrated with rather wide amplitude whenever they have got some work-related psychological pressure.
Serng-Bae Moon 한국항해항만학회 2004 한국항해항만학회지 Vol.28 No.2
A purpose of developing a sound source tracking system in this paper is to reduce the noise efficiently from the received signal by microphone array and measure the signal’s time delay between the microphones. I have applied the wavelet analysis algorithm to the system and calculated the sound source’s relative position. For the performance evaluation, I have compared with the results of utilizing she digital filtering methods based on the FIR LPF using Kaiser window function and the inverse Chebyshev IIR LPF. As a result, I have confirmed the fact that ‘time-scale’ filter using inverse discrete wavelet transform was suitable for this system.
Serng-Bae Moon,Seung-Hwan Jun 한국항해항만학회 2011 한국항해항만학회지 Vol.35 No.7
In this paper new enhanced post-process predicting the speaker’s intention was suggested to implement the real-time control module for ship’s autopilot using speech recognition algorithm. The parameter was developed to predict the likeliest wheel order based on the previous order and expected to increase the recognition rate more than pre-recognition process depending on the universal speech recognition algorithms. The values of parameter were assessed by five certified deck officers being good at conning vessel. And the entire wheel order recognition process were programmed to TMS320C5416 DSP so that the system could recognize the speaker’s orders and control the autopilot in real-time. We conducted some experiments to verify the usefulness of suggested module. As a result, we have confirmed that the post-recognition process module could make good enough accuracy in recognition capabilities to realize the autopilot being operated by the speech recognition system.
A Study on the Development of a Wide-Area Monitoring and Control System for Tug/barges
Serng-Bae Moon,Bo-Kyung Kim,Tae-Gweon Jeong 한국항해항만학회 2009 한국항해항만학회지 Vol.33 No.9
The traffic of tug/barges which are carrying construction materials, large plants for harbor development, or offshore structures has recently increased in the coast of Korea. The west and south coast of Korea are always congested due to a lot of islands and traffic concentration. Specially tug/barges have higher probability of marine accidents due to their bad maneuverability than others. Considering the operational circumstance and maneuverability, this study was to develop a wide-area monitoring and control system for tug/barges in the coastal area of Korea. The system was made in the form of three program modules i.e. navigation analysis program module, monitoring and control program module, database module. And seven functions were programmed to monitor and control the tug/barges efficiently. These are ship information search, tug/barge information and track management, designated area and safe navigation zone management, fairway management, accident data management, warning of danger, safety information management.
Serng-Bae Moon 한국항해항만학회 2010 한국항해항만학회지 Vol.34 No.9
This study is to improve the marine traffic environment along the west coast of the Korean peninsular so as to prevent the traffic accidents of the dangerous cargo carriers. The most used routes of the vessels were investigated from GICOMS database and the questionnaire survey. Gwanjanghang Sudo strait and Maenggol Sudo strait were considered to have some potential risks to the vessels. In this study, the alternative routes were developed to substitute the current routes near Gwanjanghang Sudo strait and the new boundary line of The Traffic Prohibited Area for Tanker was suggested to contain the Maenggol Sudo strait.
문성배(Serng-Bae Moon),전승환(Seung-Hwan Jun),정은석(Eun-Seok Jeong),양형선(Hyoung-Seon Yang) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
The officer of the deck(OOD) may sometimes have to carry out lookout as well as handling of auto pilot without a quartermaster at sea. The purpose of this paper is to develop the ship's auto pilot control module using speech recognition in order to reduce the potential risk of one man bridge system. The feature parameters predicting the ODD's intention was extracted from the sample wheel orders written in SMCP(IMO Standard Marine Communication Phrases). We designed a pre-recognition procedure which could make some candidate words using DTW(Dynamic Time Warping) algorithm, a post-recognition procedure which made a final decision from the candidate words using the feature parameters. To evaluate the effectiveness of these procedures, the experiment was conducted with 500 wheel orders.
Moon, Serng-Bae Korean Institute of Navigation and Port Research 2004 한국항해항만학회지 Vol.28 No.2
A purpose of developing a sound source tracking system in this paper is to reduce the noise efficiently from the received signal by microphone array and measure the signal's time delay between the microphones. I have applied the wavelet analysis algorithm to the system and calculated the sound source's relative position For the performance evaluation, I have compared with the results of utilizing the digital filtering methods based on the FIR LPF using Kaiser window function and the inverse Chebyshev IIR LPF. As a result, I have confirmed the fact that 'time-scale' filter using inverse discrete wavelet transform was suitable for this system.
Development of Analysis Module for Marine Traffic Information Using PC Camera
Moon Serng-Bae,Lee Geun-Sil,Jun Seung-Hwan Korean Institute of Navigation and Port Research 2005 한국항해항만학회지 Vol.29 No.4
Usually marine traffic survey has been conducted by some methods like an ocular observation using portable RADAR, a questionnaire, etc. But these should have expended a lot of manpower and expenses. In this paper, we have developed new observation module which could capture the RADAR image using PC camera simply, and allowed as to track targets on the PC monitor directly. And it has been programmed to make a database of RADAR image, target's track and information, and analyze the marine traffic tendency in various ways like vessel number crossed over gate line, vessel's velocity distribution in gate line, traffic density distribution, etc. We have confirmed that this module could observe and analyze the marine traffic efficiently and economically through several on-the-spot experiments.