Terrain Adaptive Vehicles

1995 ◽  
Vol 117 (B) ◽  
pp. 107-112 ◽  
Author(s):  
K. J. Waldron
Keyword(s):  
Reference List ◽  
Central Feature ◽  
Coordination Problem ◽  
Technical Problems ◽  
Vehicle Type ◽  
Variable Configuration ◽  
And Control ◽  
Wheeled Vehicles ◽  
Coordination And Control ◽  
Principal Elements

Research on walking vehicles and variable configuration wheeled vehicles is reviewed. The central feature of the vehicles discussed is terrain adaptive capability. The principal elements of the technical problems of coordination and control are discussed for each vehicle type. Examples of each vehicle type are discussed and an extensive reference list is provided. Although the article is primarily a review article, it contains a new discussion of the coordination problem of robotic mechanisms.

Terrain Adaptive Vehicles

1995 ◽  
Vol 117 (B) ◽  
pp. 107-112 ◽  
Author(s):  
K. J. Waldron
Keyword(s):  
Reference List ◽  
Central Feature ◽  
Coordination Problem ◽  
Technical Problems ◽  
Vehicle Type ◽  
Variable Configuration ◽  
And Control ◽  
Wheeled Vehicles ◽  
Coordination And Control ◽  
Principal Elements

Research on walking vehicles and variable configuration wheeled vehicles is reviewed. The central feature of the vehicles discussed is terrain adaptive capability. The principal elements of the technical problems of coordination and control are discussed for each vehicle type. Examples of each vehicle type are discussed and an extensive reference list is provided. Although the article is primarily a review article, it contains a new discussion of the coordination problem of robotic mechanisms.

Präzisions-Forstwirtschaft – was ist das? | Precision forestry – what's that?

2007 ◽  
Vol 158 (8) ◽  
pp. 235-242 ◽  
Author(s):  
Hans Rudolf Heinimann
Keyword(s):  
Business Processes ◽  
Spatial Scales ◽  
Supply Chain Coordination ◽  
Sensor Technology ◽  
Small Scale ◽  
Soil Physics ◽  
Coordination Problem ◽  
Precision Engineering ◽  
Precision Forestry ◽  
And Control

The term «precision forestry» was first introduced and discussed at a conference in 2001. The aims of this paper are to explore the scientific roots of the precision concept, define «precision forestry», and sketch the challenges that the implementation of this new concept may present to practitioners, educators, and researchers. The term «precision» does not mean accuracy on a small scale, but instead refers to the concurrent coordination and control of processes at spatial scales between 1 m and 100 km. Precision strives for an automatic control of processes. Precision land use differs from precision engineering by the requirements of gathering,storing and managing spatio-temporal variability of site and vegetation parameters. Practitioners will be facing the challenge of designing holistic, standardized business processes that are valid for whole networks of firms,and that follow available standards (e.g., SCOR, WoodX). There is a need to educate and train forestry professionals in the areas of business process re-engineering, computer supported management of business transactions,methods of remote sensing, sensor technology and control theory. Researchers will face the challenge of integrating plant physiology, soil physics and production sciences and solving the supply chain coordination problem (SCCP).

Colliding Coordination Structures in Multilevel Systems of Government (and How to Live with It)

2018 ◽  
Author(s):  
Morten Egeberg ◽  
Jarle Trondal
Keyword(s):  
Network Governance ◽  
Administrative System ◽  
Public Governance ◽  
Multilevel Systems ◽  
Nation States ◽  
Governance Systems ◽  
And Control ◽  
Coordination And Control

This chapter discusses governance dilemmas that are often overlooked in studies that do not encompass the ecology of organization in public governance. The chapter discusses how coordination structures may counteract each other in multilevel systems of government. The ambition of the chapter is twofold: Firstly, a coordination dilemma is theoretically and empirically illustrated by the seeming incompatibility between a more direct (interconnected) and sectorally specialized implementation structure in the multilevel EU administrative system and trends towards strengthening coordination and control within nation states. Secondly, the chapter discusses organizational arrangements that may enable governance systems to live with the coordination dilemma in practice. This coordination dilemma seems to have been largely ignored in the literature on EU network governance and national ‘joined-up government’ respectively.

scholarly journals Design, Construction, and Control for an Underwater Vehicle Type Sepiida

Robotica ◽  
2020 ◽  
pp. 1-18
Author(s):  
M. Garcia ◽  
P. Castillo ◽  
E. Campos ◽  
R. Lozano
Keyword(s):  
Embedded System ◽  
Closed Loop ◽  
Underwater Vehicle ◽  
Mathematical Representation ◽  
Closed Loop System ◽  
Vehicle Type ◽  
Mathematical Equations ◽  
And Control ◽  
Design Construction

SUMMARY A novel underwater vehicle configuration with an operating principle as the Sepiida animal is presented and developed in this paper. The mathematical equations describing the movements of the vehicle are obtained using the Newton–Euler approach. An analysis of the dynamic model is done for control purposes. A prototype and its embedded system are developed for validating analytically and experimentally the proposed mathematical representation. A real-time characterization of one mass is done to relate the pitch angle with the radio of displacement of the mass. In addition, first validation of the closed-loop system is done using a linear controller.

scholarly journals Bio-inspired Coordination and Control of Autonomous Vehicles in Future Manufacturing and Goods Transportation

2020 ◽  
Vol 53 (2) ◽  
pp. 10861-10866
Author(s):  
Constantin F. Caruntu ◽  
Carlos M. Pascal ◽  
Anca Maxim ◽  
Ovidiu Pauca
Keyword(s):  
Autonomous Vehicles ◽  
And Control ◽  
Coordination And Control

scholarly journals Model-Based Slippage Estimation to Enhance Planetary Rover Localization with Wheel Odometry

2021 ◽  
Vol 11 (12) ◽  
pp. 5490
Author(s):  
Anna Maria Gargiulo ◽  
Ivan di Stefano ◽  
Antonio Genova
Keyword(s):  
Inertial Measurement Unit ◽  
Correction Method ◽  
Harsh Environments ◽  
Measurement Unit ◽  
Planetary Rovers ◽  
Model Based ◽  
Accurate Knowledge ◽  
And Control ◽  
Wheeled Vehicles ◽  
Rover Localization

The exploration of planetary surfaces with unmanned wheeled vehicles will require sophisticated software for guidance, navigation and control. Future missions will be designed to study harsh environments that are characterized by rough terrains and extreme conditions. An accurate knowledge of the trajectory of planetary rovers is fundamental to accomplish the scientific goals of these missions. This paper presents a method to improve rover localization through the processing of wheel odometry (WO) and inertial measurement unit (IMU) data only. By accurately defining the dynamic model of both a rover’s wheels and the terrain, we provide a model-based estimate of the wheel slippage to correct the WO measurements. Numerical simulations are carried out to better understand the evolution of the rover’s trajectory across different terrain types and to determine the benefits of the proposed WO correction method.

Modelling global computations with Klaim

2008 ◽  
Vol 366 (1881) ◽  
pp. 3737-3745 ◽  
Author(s):  
Rocco De Nicola ◽  
Michele Loreti
Keyword(s):  
Distributed Systems ◽  
Formal Semantics ◽  
Wide Area ◽  
Wide Area Networks ◽  
Qualitative And Quantitative ◽  
Global Computing ◽  
New Models ◽  
And Control ◽  
Tuple Spaces ◽  
Coordination And Control

A new area of research, known as Global Computing, is by now well established. It aims at defining new models of computation based on code and data mobility over wide-area networks with highly dynamic topologies, and at providing infrastructures to support coordination and control of components originating from different, possibly untrusted, fault-prone, malicious or selfish sources. In this paper, we present our contribution to the field of Global Computing that is centred on Kernel Language for Agents Interaction and Mobility ( Klaim ). Klaim is an experimental language specifically designed to programme distributed systems consisting of several mobile components that interact through multiple distributed tuple spaces. We present some of the key notions of the language and discuss how its formal semantics can be exploited to reason about qualitative and quantitative aspects of the specified systems.

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