Dissertations / Theses on the topic 'Vessels Monitoring System'

The study begins with a historical background over the fisheries development in North America and in the Baltic Sea area in Finland and Sweden. As we can see the fisheries development depends on the interaction between ecology, state of production, politic and also social factors. In Sweden the fishery politic has changed over the period of the study. In the 1970: s the main politic focus was on the fisheries progress, expansion and rationalization. The State in Sweden took a vast part in this development and gave economic support. In the 1980: s the fishery politic in Sweden started to change and the environmental politics began to enter the fishery politic. The environmental problems in the Baltic Sea were given attention and it was a great anxiety over the eutrophication. In the 1980: s the codpopulation declined and with them the catches declined. The conflict over the White zone 1978-1988 between Former Soviet Union and Sweden resulted in a plunder fishery in the area east of Bornholm. This plunder fishery effected the cod population enormous and the effect has continued to the late 1990: s.

In 1995 Sweden joined the European Union and the common fishery politic replaced the Swedish fishery politic.

The system with TAC (Total Allowable Catch) is central in the common politic and it is used to control the cod catches. But the problem is that the TAC -volume has been higher than the codpopulation could stand. Despite the politic goal in Sweden and EU to preserve the codpopulation in the Baltic Sea, the codpopulation has continued to decline. The reason to this politic failure is that the limit of the ecology has been overseen. Instead, the economic and social values have been dominating the politic and together with a to weak control of the catches and environmental problems in the Baltic Sea, the situation for the cod has been devastating.

MBA Professional Report
Approved for public release, distribution unlimited
MBA Professional Report
This MBA Professional Report proves the feasibility of using aircraft mounted RFID antennas to detect commercially available Radio Frequency Identification (RFID) tags affixed to small vessels. The project was conducted because monitoring small vessels in U.S. coastal and inland waters is considered a gap in homeland security, as well as problematic for marine resource managers tasked with enforcing sanctuary and fishing regulations. The premises of the project are that 1) RFID tags are less invasive and more cost effective than other current methods of proposed monitoring, 2) airborne platforms can monitor areas of interest faster and more efficiently than surface based monitoring systems, and 3) small vessel registration numbers can be electronically associated with the serial number of the affixed RFID tag. The cost of tagging each vessel is low (around $50 per vessel), and the tag number of any vessel could be read remotely from 0.3 to 0.5 nautical miles away. The agency reading the tag would be able to retrieve the associated vessel registration information from a national database through a back-end data-link system. This system could improve coastal and port security by providing remote monitoring of real-time vessel location information, and could enable improvements in resource management methods by enabling correlation of location and identification data for recreational vessels engaged in natural resource use.

"Submitted in partial fulfillment of the requirements for the degree of Master of Business Administration from the Naval Postgraduate School, December 2009."
Advisor(s): Dew, Nicholas ; Hudgens, Bryan. "December 2009." "MBA Professional report"--Cover. Description based on title screen as viewed on January 26, 2010. Author(s) subject terms: RFID, Radio Frequency Identification, airborne, vessel monitoring. Includes bibliographical references (p. 103-110). Also available in print.

The Gulf of Mexico commercial reef fish fishery has experienced significant management changes and disturbance in recent years, including transitioning two major fisheries from a traditional open access system into a limited entry individual fishing quota (IFQ) system in 2007 and 2010. Also in 2010, the Deepwater Horizon oil spill (DWH) released an estimated 4.9 million barrels of oil into the Gulf (~206 million U.S. gallons), and is still the largest U.S. environmental disaster to date. Emergency fishing closures initiated shortly after the oil spill began were successful in keeping tainted seafood from reaching markets. However, effects of DWH closures on fisher decision making, fishery productivity, and distribution of fishing effort all remain poorly understood. Understanding the range and magnitude of fishers’ responses to perturbations — including regulatory change and human-induced environmental disasters — is critical for designing effective management and disaster response policies that can meet biological, ecological, economic, social, and sustainability objectives. This work characterized the spatial and temporal patterns of productivity and fishing effort for the Gulf of Mexico (GoM) commercial reef fish fishery. Patterns of productivity and effort distribution were used to examine the response of fishers to management change and large-scale disturbance, namely the DWH fishing closures. Fisheries-dependent logbook trip reports were used to quantify revenue and catch-per-unit-effort (CPUE) patterns from 2000-2014. Novel to fisheries work in the GoM, complementary vessel monitoring systems (VMS) satellite tracking data were used to quantify high-resolution spatial distribution patterns over time, relative to the DWH fishing closures. A general linear modeling (GLM) approach was also used to examine which variables may have contributed to resilience of fishers after DWH closures. Results suggested that this fishery was largely resilient to the DWH fishing closures in 2010, although exact outcomes varied by region. Overall fleet-level productivity steadily increased over time, but regional patterns were based on major species in catch. Productivity in the western GoM was consistently highest over time, and trips in the west and central GoM were dominated by Red snapper (Lutjanus campechanus) and Vermilion snapper (Rhomboplites aurorubens). Trips in the east were dominated by Red grouper (Epinephelus morio) and Gag grouper (Mycteroperca microlepis). Shifts in spatial distribution to new productive fishing grounds or reduced competition via fewer vessels or trips may explain the increases in productivity observed over the study period. Consolidation in the fleet was apparent, with fewer individual vessels and fewer total trips over time. However, the rate of vessel drop out after DWH (5%) was far below the annual background attrition rate of ~14-20%. Relative productivity patterns inside vs. outside the boundaries of fishing closures did not change over time, and there were even some increases in productivity observed during and after DWH in the eastern GoM. Yet, vessels that dropped out after DWH were concentrated in the north-central and eastern GoM. Distribution of fishing grounds before and after DWH were highly similar, and there were increases in effort along the outer West Florida Shelf. Variability in revenue and CPUE, CPUE magnitude, and magnitude of grouper landings were significant predictors of dropping out of the fishery in the GLMs. Synergies with the Red snapper or Grouper-Tilefish IFQs may have “primed” the fishery for resilience by eliminating inconsistent or marginal fishers before the oil spill, and may further explain some of the spatially varying patterns of productivity and attrition after 2010. Resilience was likely also enhanced by the more than $2 billion in emergency compensation payments made to captains, crew, and vessel owners for lost fishing income and assistance with oil remediation efforts. This work stands to make a significant contribution to our understanding of how the DWH oil spill impacted fisheries and communities in the GoM. The results add to a growing body of literature suggesting that the acute population- and ecosystem-level impacts of the DWH oil spill were not as strong or severe as initially anticipated. This work also stands to make contributions to the broader understanding of how this fishery has performed in the wake of recent management change and major environmental disturbance.

Ce travail propose une contribution originale à la compréhension du comportement spatial des pêcheurs, basée sur les paradigmes de l'écologie comportementale et de l'écologie du mouvement. En s'appuyant sur des données du 'Vessel Monitoring System', nous étudions le comportement des pêcheurs d'anchois du Pérou à des échelles différentes: (1) les modes comportementaux au sein des voyages de pêche (i.e. recherche, pêche et trajet), (2) les patrons comportementaux parmi les voyages de pêche, (3) les patrons comportementaux par saison de pêche conditionnés par des scénarios écosystémiques et (4) les patrons spatiaux des positions de modes comportementaux, que nous utilisons pour la création de cartes de probabilité de présence d'anchois. Pour la première échelle, nous comparons plusieurs modèles Markoviens (modèles de Markov et semi-Markov cachés) et discriminatifs (forêts aléatoires, machines à vecteurs de support et réseaux de neurones artificiels) pour inférer les modes comportementaux associés aux trajectoires VMS. L'utilisation d'un ensemble de données pour lesquelles les modes comportementaux sont connus (grâce aux données collectées par des observateurs embarqués), nous permet d'entraîner les modèles dans un cadre supervisé et de les valider. Les modèles de semi-Markov cachés sont les plus performants, et sont retenus pour inférer les modes comportementaux sur l'ensemble de données VMS. Pour la deuxième échelle, nous caractérisons chaque voyage de pêche par plusieurs descripteurs, y compris le temps passé dans chaque mode comportemental. En utilisant une analyse de classification hiérarchique, les patrons des voyages de pêche sont classés en groupes associés à des zones de gestion, aux segments de la flottille et aux personnalités des capitaines. Pour la troisième échelle, nous analysons comment les conditions écologiques donnent forme au comportement des pêcheurs à l'échelle d'une saison de pêche. Via des analyses de co-inertie, nous trouvons des associations significatives entre les dynamiques spatiales des pêcheurs, des anchois et de l'environnement, et nous caractérisons la réponse comportementale des pêcheurs selon des scénarios environnementaux contrastés. Pour la quatrième échelle, nous étudions si le comportement spatial des pêcheurs reflète dans une certaine mesure la répartition spatiale de l'anchois. Nous construisons un indicateur de la présence d'anchois à l'aide des modes comportementaux géo-référencés inférés à partir des données VMS. Ce travail propose enfin une vision plus large du comportement de pêcheurs: les pêcheurs ne sont pas seulement des agents économiques, ils sont aussi des fourrageurs, conditionnés par la variabilité dans l'écosystème. Pour conclure, nous discutons de la façon dont ces résultats peuvent avoir de l'importance pour la gestion de la pêche, des analyses de comportement collectif et des modèles end-to-end
This work proposes an original contribution to the understanding of fishermen spatial behavior, based on the behavioral ecology and movement ecology paradigms. Through the analysis of Vessel Monitoring System (VMS) data, we characterized the spatial behavior of Peruvian anchovy fishermen at different scales: (1) the behavioral modes within fishing trips (i.e., searching, fishing and cruising); (2) the behavioral patterns among fishing trips; (3) the behavioral patterns by fishing season conditioned by ecosystem scenarios; and (4) the computation of maps of anchovy presence proxy from the spatial patterns of behavioral mode positions. At the first scale considered, we compared several Markovian (hidden Markov and semi-Markov models) and discriminative models (random forests, support vector machines and artificial neural networks) for inferring the behavioral modes associated with VMS tracks. The models were trained under a supervised setting and validated using tracks for which behavioral modes were known (from on-board observers records). Hidden semi-Markov models performed better, and were retained for inferring the behavioral modes on the entire VMS dataset. At the second scale considered, each fishing trip was characterized by several features, including the time spent within each behavioral mode. Using a clustering analysis, fishing trip patterns were classified into groups associated to management zones, fleet segments and skippers' personalities. At the third scale considered, we analyzed how ecological conditions shaped fishermen behavior. By means of co-inertia analyses, we found significant associations between fishermen, anchovy and environmental spatial dynamics, and fishermen behavioral responses were characterized according to contrasted environmental scenarios. At the fourth scale considered, we investigated whether the spatial behavior of fishermen reflected to some extent the spatial distribution of anchovy. Finally, this work provides a wider view of fishermen behavior: fishermen are not only economic agents, but they are also foragers, constrained by ecosystem variability. To conclude, we discuss how these findings may be of importance for fisheries management, collective behavior analyses and end-to-end models

Actuellement, la distribution spatiale des thons tropicaux pêchés par les senneurs français dans l'Océan Indien est représentée à partir des données de captures et d'effort issues des livres de bord. Or ces données ne comportent qu'une position par jour et le nombre de calées réalisées pendant cette journée : l'ensemble des zones prospectées sans action de pêche, synonyme d'absence d'agrégations de thon n'est pas connu. Ces zones seraient pourtant utiles à la cartographie des abondances. Cette flottille étant équipée de systèmes VMS (Vessel Monitoring Systems), les trajectoires données par les VMS sont utilisées pour déduire du comportement des navires, les zones de présence (pêche) et d'absence (non pêche) d'agrégations de thonidés. L'objectif est donc d'estimer l'activité d'un navire à partir de sa trajectoire. L'application d'un modèle markovien permet de distinguer les activités de route, de recherche, et d'arrêt, et de pêche. Pour la majorité des sorties en mer (exceptées celles où un observateur est à bord), l'activité réelle du navire n'est pas connue (variable latente), ce qui justifie l'approche par chaînes de Markov à états cachés. Le modèle a été développé dans un contexte bayésien incluant des priors sur certains des paramètres (vitesses, angles de changement de cap et matrice de transition). Il a été calibré et validé grâce aux données collectées par des observateurs embarqués sur 10% de la flottille. Le taux d'erreur est de 10% pour des positions VMS enregistrées toutes les heures. Une fois estimée, l'activité des senneurs en chaque point de leur trajectoire a permis (1) d'obtenir des indicateurs spatiaux et temporels de l'effort de la flottille de senneurs français, et (2) d'étudier la structure spatiale des zones de présence de bancs de thons (variogrammes d'indicatrices) et d'en déduire, par cokrigeage d'indicatrices, des cartes de présence/présence potentielle/absence de thon capturable, pouvant être interprétées comme indices d'abondance de thon.

Das vorgeschlagene SHM-System 'Adapted Metal Wire Based and fiber Oriented Sensor - AMBOS', basierend auf Drähten aus Metalllegierungen, ist vergleichsweise kostengünstig und verfügt über sehr gute Verarbeitungseigenschaften, insbesondere mit Eignung zur Integration in den Wickelprozess. Eine speziell entwickelte Abwickelvorrichtung erlaubt die direkte Verarbeitung der Drähte zusammen mit den Verstärkungsfasern und wärmehärtenden Harzsystemen im Wickelprozess. Insbesondere aufgrund der hohen Genauigkeit und der sehr niedrigen Material- und Verarbeitungskosten hat das beschriebene Verfahren ein großes Potenzial für den Einsatz in der automobilen Serienfertigung. Grundsätzlich sind die untersuchten Metalldrähte für eine solche Anwendung geeignet. Ein wesentlicher Vorteil ist die einfache Kompensation von thermischen Einflüssen. Weitere Untersuchungen zum Korrosionsschutz und zu Umwelteinflüssen stehen noch aus.
The proposed SHM system called “Adapted Metal wire Based and fiber Oriented Sensor – AMBOS”, based on wires from metal alloys, is comparatively inexpensive and has very good processing properties, in particular with suitability for integration into the winding process. A specially developed unwinding de-vice allows direct processing of the wires together with the reinforcing fibres and thermosetting resin systems in the winding process. Especially due to the high ac-curacy and the very low material and processing costs, the described process has great potential for use in automotive series production. In principle, the metal wires investigated are suitable for such an application. A significant advantage is the simple compensation of thermal influences. Further investigations on corrosion preservation and influences from the environment are still pending.

碩士
國立成功大學
系統及船舶機電工程學系
102
At the request of international fisheries organizations, small and medium-sized longliners involve the deployment of observers to record operating conditions of the vessels. However, such vessels have narrow space, so onboard observers bring a heavy burden. This research developed automatic monitoring system installed on vessels and information getting system configured onshore. Expect that this system to replace the practice of deploying observers. Automatic monitoring system installed on medium-sized long-line vessel records the operating procedure of setting and hauling by three cameras installed on foredeck and stern. To ensure that recording synchronized with setting and hauling, infrared transceiver and oil pressure sensor were designed, with embedded system to switch digital video recorder power, making the memory capacity of hard disk can be fully utilized. Waterproof device was applied to hardware against harsh environment on the sea. This system has been installed on a CT3-level longliner tested and recorded video images about twenty voyages. While longliners return to port, onshore officers have to retrieve hard disks and get information in the offices. Information getting system consists of two software programs, namely getting operation information and catches information. This system can get time, latitude, longitude, number of hooks and bait species of operation, and catching time, latitude, longitude, length and species of catches.

碩士
國立海洋大學
漁業科學系碩士在職專班
90
Abstract Vessel Monitor Systems (VMS) is an effective tool to trace locations of fishing vessels and control catch data, and many countries support to use the system to manage fish quota. To cooperate with different countries, it is necessary to develop the VMS integrity, and use the system to manage fisheries in Taiwan. Results of the study were described as following: (1) The VMS form the basis of a MCS, and it is fundamental requirement of implementing responsible fisheries in marine fisheries. (2) The idea of VMS comes from SOLAS convention and it bases on UNIA of the United Nations. (3) VMS is used to trace locations of fishing boats and catch data in Taiwan at present. The system can be used on the future development of fisheries. (4) We used VMS to trace inshore and offshore fisheries since 1989. The system shows significant benefits in Taiwan. (5) Far Sea fisheries will use INMARSAT-C system, and leisure fishing will use AIS system. (6) The future developments of VMS will consider: function expand, arrange three systems consistently, improve electric communication, verify rest days of fishing, install the HF/SSB system on cooperative countries, produce the system manual and video, and update software.

碩士
國立高雄科技大學
海事資訊科技系
107
In recent years, we are able to access new information quickly via the Internet because the threshold of owning the device is descending and the convenience of accessing the network has been improved. People can access information through the Internet rather than traditional TV media and paper copies. As lifestyle transition occurs, people can know real-time events happening from a distance. Dealing with a large amount of data is difficult for people to digest all the information and fetch any useful information. There seems to be a correlation between the time to access information and its usability. The most common data access mode for users to request data from the server is through their connecting devices. The system quickly accesses the database to provide effective information retrieval. In order to meet user’s requests, location-based service is one of the most efficient ways to retrieve information. The common vessel system is adapted to provide the basic message of vessels, rarely provided the surrounding information of the specific vessel. This study aims to develop the dynamic monitoring system, using a scripting code to design an interactive web page and simulation model for the vessels sailing on the sea. The user can know the position of the vessel and obtain the required location-based information by operating the front-end website that links to the back-end database. This system includes four procedures: the K-nearest neighbor vessel, the spatial range queries, the surrounding object queries, and the vessel collision detection.

碩士
國立臺灣海洋大學
通訊與導航工程系
96
Fishing Vessel Monitoring System (VMS) is an effective tool of fisheries monitoring, control and surveillance measures to counter over-fishing. It can also help the coast guard to safeguard vessels more efficiently. As VMS is widely implemented, more and more efforts focus on mining the VMS database to discover knowledge and clues that would further enhance the benefits. This thesis is focused on data mining VMS database with clustering technology developed for and implemented into the VMS of Taiwan. The initial request form the Fisheries Administration was to constantly identify wherever there are at least three fishing vessels within 3 nautical miles of range. The proposed solution was based on DBSCAN [1] clustering algorithm. The performances in accuracy and run-time were evaluated and improved with vessel position prediction, partitioning of datasets, data structure and algorithm design. With the promising results, this solution has been recognized by the fisheries management and VMS operation experts to be of many extended use in VMS. Finally, this Density Area Detection System was applied to the detection of at-sea transshipment and parallel-track vessels. Then, the performance in accuracy and practicability would be discussed.

碩士
國立高雄海洋科技大學
輪機工程研究所
104
Due to the popularity and development of wireless networks, portable devices have been used for a communication tool in recent years. In general, less technologies for wireless monitoring system can be used for engine room of a vessel. Hence the proposed real-time monitoring system of a vessel is integrated by the popular wireless networks (3G, 4G, and Wi-Fi), smart phones, and Arduino MEGA control card, temperature/Humidity sensor, flames sensor. All the monitoring information can be uploaded to cloud storage hard drives and complete the construction of real time monitoring system. This research can be used to save the time for checking and maintenance of crews, but also has 「real-time temperature/humidity monitoring」, 「limited temperature/humidity control」, 「real-time storage for environment information」, and some other functions. This research provides the duty engineers to understand temperature, humidity, and flames through our real-time monitoring system. Based on cloud and Wi-Fi technologies, the monitoring, communication, and human resource management can be achieved easily. Moreover, the proposed scheme can provide the access for information and early detection for problems. Both human error and hidden disasters can be reduced from the developed results of this thesis.

A dissertação analisa os sistemas de monitorização via satélite da atividade de pesca - Vessel Monitoring System (VMS) - atualmente em uso nas principais frotas de pesca mundiais. Começando por enquadrar a sua necessidade, descrevendo a relevância global da pesca, os seus problemas e ameaças e os desafios da regulação e fiscalização desta atividade, descreve em seguida com maior detalhe os seus componentes, tecnologias utilizadas e funcionalidade, a forma como surgiram no mundo e o contributo pioneiro de Portugal. Aborda depois a forma como evoluíram no mundo em termos de de âmbito e competências. Por fim analisa as atuais oportunidades de evolução tecnológica dos sistemas VMS, identificando áreas e temas de investigação e desenvolvimento relevantes para o futuro dos sistemas VMS.
The dissertation analyzes the satellite-based fishing activity monitoring systems - Vessel Monitoring System (VMS) - currently in use in the world's main fishing fleets. Beginning by framing their need, describing the global relevance of ocean fisheries, its problems and threats, and its regulation and control challenges; it presents next in more detail the VMS components, technologies and functionality, the way they emerged in the world and Portugal’s pioneering contribution. It then addresses how they have evolved in the world in terms of scope and competencies. Finally, it analyzes current VMS technological evolution opportunities, identifying research and development areas and themes relevant to the future of VMS systems.
Apoio financeiro da XSEALENCE – Sea Technologies S.A.
Mestrado em Engenharia Eletrónica e Telecomunicações

碩士
國立高雄海洋科技大學
輪機工程研究所
104
In this research, the concept of close-loop control system is employed to design a control system with automatic starting and resuming functions for emergency quick-closing valve used by marine vessels. Through invention of such an automatic control system of emergency quick-closing valve, which is a necessary device of vessel, it is hoped to assist in accomplishment of the goal of vessel automation. The main engines and auxiliary engines of vessels are mainly powered by fuel. Therefore, vessels are always equipped with a multi-outlet oil tank that is stored with a lot of fuel. Hence, the control of the safety of fuel is an important issue to vessels designers and users. All the outlets of the fuel tank of vessel have to be equipped with emergency fuel quick-closing valve. When a certain part of a vessel has an unexpected condition being judged to be endangering the safety of the vessel, this valve has to be closed quickly and immediately in order to block and separate the flow of fuel. In this thesis, we integrate with Arduino micro-control board,temperature sensing, and flame sensors to construct the real-time monitoring system. The related sensing signals have been used to serves as the starting signal of emergency quick-closing valve for marine.Besides, the pneumatic control and server positioning control have been used to be the controllers for emergency starting and subsequent resuming of the valve. From actual making and results of experimental proof, it is well know the automatic control system of emergency quick-closing valve has its practicality. The proposed controller has smaller volume and the signal can be displayed in web page and LCD.

碩士
國立海洋大學
應用經濟研究所
91
This study focuses on regulations of vessel monitoring system (VMS) and the development of VMS technology. Through the discoveries of the study, it is hoped that the local management system of VMS could have a connection to international fisheries management and develop in accordance with it. International fisheries organizations are authorized by international conventions and agreements with the rights of conservation, management and trade sanctions, and they practically enforce these rights through monitoring, control and surveillance measures. VMS is able to provide near real-time vessel position and catch information; hence, in the near future, main commercial fisheries will be required to install VMS on the vessels. International fisheries laws related have already requested flag states to develop appropriate VMS and their fishing vessels are supposed to install VMS according to the rules set by flag states. To ensure the practice of fisheries resources reservation, coastal states can also ask foreign fishing vessels operating in their Exclusive Economic Zone or territorial seas to be equipped with VMS. Moreover, if fishing vessels entering port states with VMS, it is helpful for the port states to get aboard the vessels for inspection. Therefore, it is expected that VMS will be widely used in fisheries management in the future. Our fishing vessels usually operate for a long period of time on the sea, which may extend to over one year and they use foreign ports as bases for repair. As a result, the VMS already installed is either an old version or an updated one, many of whose additional functions do not work effectively. In addition, since catch report is becoming more detailed, the software of catch report keeps changing and this causes vessel crew to spend time getting familiar with operating the software. Consequently, when planning catch report software, the government should ask experts to develop a catch report software which can be updated on-line, so as to avoid causing trouble for the crew. As to the steady catch report coming from the software of VMS, measures of procedure simplification should be taken in the future. For example, fishing vessels that report catch through VMS should be allowed not to fill out logbook, so as to encourage catch report through VMS and promote the policy of electronicalizing logbook and thereby the goals of transparent vessel operation, real-time monitoring and conservation of manpower can be reached. When it comes to the standardization of installing VMS and identification procedures, the government should set clear regulations with reference to the management of information security and confidentiality adopted by international fisheries organizations. Furthermore, speaking of the VMS frequency of vessel position report in terms of the international trend, it’s very likely to be once every 6 hour. Consequently, the fisheries industry should be informed and get themselves prepared.