An Automatic Navigation System for Unmanned Surface Vehicles in Realistic Sea Environments

The problems of integrating aircraft using area navigation into the terminal A.T.C. environment are discussed. It is concluded that area navigation systems currently available are incompatible with current terminal A.T.C. approach sequencing and that integration is only possible in the context of both computer assistance to the approach controller and data link between the A.T.C. computer and the aircraft navigation system. The benefits of Terminal Area Navigation are briefly considered and it is suggested that the deployment of vertical navigation in a procedural role might be the better first step. The paper was presented at the 19th Technical Conference of I.A.T.A., Dublin, 1972. Crown copyright.Currently available area navigation (R NAV) systems range from simple station-oriented single waypoint systems, allowing flight on paths which do not coincide with VOR radials, to complex systems in principle enabling flight from origin to destination along a pre-programmed route, including flight on a standard terminal arrival route (from holding point or feeder-fix to the approach gate). As far as Terminal Area Navigation is concerned it appears that the main objective to the R Nav system designers has been to provide a system which enables automatic navigation along the standard terminal arrival routes, as depicted in the Jeppeson Charts, and to display to the pilot his progress along the route. It appears that designers of the more sophisticated systems have tacitly assumed that when an R Nav aircraft enters the terminal area A.T.C. will be able and willing to allocate it such a route.

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The model of optimum route selection in vehicle automatic navigation system based on unblocked reliability analyses

Proceedings of the 2003 IEEE International Conference on Intelligent Transportation Systems ◽

10.1109/itsc.2003.1252631 ◽

2004 ◽

Author(s):

Chen Yanyan ◽

Liang Ying ◽

Du Huabing

Keyword(s):

Navigation System ◽

Route Selection ◽

Automatic Navigation ◽

Optimum Route

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The Nature of the Information to be Displayed at Sea

Journal of Navigation ◽

10.1017/s0373463300037218 ◽

1960 ◽

Vol 13 (1) ◽

pp. 39-47

Author(s):

L. S. Le Page

Keyword(s):

Automatic Control ◽

Error Rate ◽

Navigation System ◽

Rate Of Change ◽

Stages Of Development ◽

Dynamic Data ◽

Automatic Navigation ◽

Dynamic Interpretation ◽

Forecast Data

The view is taken in this paper that an automatic navigation system should be capable of weighing up data and issuing instructions, in the same manner as a human navigator. Conventional information tends to offer static rather than dynamic data.It is suggested that there are several stages of development towards completely automatic navigation: (i) a dynamic interpretation of the existing navigational situation, (ii) the automatic prediction of future situations, (iii) automatic navigational advice, (iv) automatic control of a ship under the supervision of a navigator. Such control would not take care of all situations but would be particularly suited to some; a list of the information likely to be required for presentation is given.For entirely automatic navigation to be feasible, the whole of the process of transport at sea may have to be reviewed. It is suggested that the trend should be towards presenting error, rate of change and forecast data.

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Automatic Navigation System Research for PZ60 Rice Planter

Computer and Computing Technologies in Agriculture VIII - IFIP Advances in Information and Communication Technology ◽

10.1007/978-3-319-19620-6_73 ◽

2015 ◽

pp. 653-661

Author(s):

Liguo Wei ◽

Xiaochao Zhang ◽

Quan Jia ◽

Yangchun Liu

Keyword(s):

Navigation System ◽

System Research ◽

Automatic Navigation

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Design of a dynamic positioning for unmanned surface vehicles using GPS/INS (VIAM-NAVI-M)

Science & Technology Development Journal - Engineering and Technology ◽

10.32508/stdjet.v3isi2.546 ◽

2021 ◽

Vol 3 (SI2) ◽

pp. first

Author(s):

HUY NGOC TRAN ◽

Nguyen Tu Cuong

Keyword(s):

Navigation System ◽

System Development ◽

Low Cost ◽

Wind Waves ◽

Propulsion Systems ◽

Unmanned Surface Vehicles ◽

Specific Direction ◽

Global Positioning ◽

Waves And Currents ◽

Changing Noise

Today, Unmanned Surface Vehicles (USV) maintain the direction and fixed position necessary for many different applications such as security patrol, transmit information, water sampling, environmental monitoring... With USV model with two hull, control and propulsion systems, both of which are specifically designed to allow the vehicel to perform this task flexibly, omnidirectional and maneuverable. With environmental effects, such as wind, waves and currents ..., it has a large impact on ships, leading to large errors or fluctuations. Therefore, a controller designed to produce better performance for USV under changing noise conditions is essential. To improve the ability of navigation for vehicles, Viam-Navi-M GPS/INS Module: integration of Inertial Navigation System (INS) and Global Positioning System (GPS) is developed with low-cost, highly accurate and stable navigation system. At the same time, the article will present the process of system development and software architecture design. Finally, with the four engine and controller propulsion system built and tested, it shows that the boat is well controlled, its ability to maintain specific direction and position for long periods of time. The postion error is maintained less than 1 meter most of the experimental time and the heading error is between -5 and +5 degrees.

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