In recent years, humanlike robots have recieved a lot of attension. For making humanlike robots, a muscu-loskeletal humanoid is an effective approach. However, many musculoskeletal humanoids have not yet been equipped...
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Water is vital for human life. Water is used widespread from agricultural to industrial as well as simple domestic activities. Mostly due to the increase on world population, water is becoming a sparse and valuable re...
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ISBN:
(纸本)9789898425744
Water is vital for human life. Water is used widespread from agricultural to industrial as well as simple domestic activities. Mostly due to the increase on world population, water is becoming a sparse and valuable resource, pushing a high demand on the design of efficient engineering water distribution control systems. This paper presents a simple yet sufficiently rich and flexible solution to model open-channels. The hydraulic model is based on the Saint-Venant equations which are then linearized and transformed into a state space dynamic model. The resulting model is shown to be able to incorporate different boundary conditions like discharge, water depth or hydraulic structure dynamics, features that are commonly present on any water distribution system. Besides, due its computational simplicity and efficient monitoring capacity, the resulting hydraulic model is easily integrated into safety and fault tolerant control strategies. In this paper the hydraulic model is successfully validated using experimental data from a water canal setup.
The paper deals with adaptive control system of multilink manipulator. This system taking into account power restriction of executive elements is capable to set to the gripper the greatest possible speed at spatial tr...
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The paper deals with adaptive control system of multilink manipulator. This system taking into account power restriction of executive elements is capable to set to the gripper the greatest possible speed at spatial trajectory. For providing necessary dynamic accuracy at high speeds of work, the self-turning correcting device has been entered into control chain of each drive. Results of simulating have completely confirmed high quality of the synthesized control system.
Due to the increased complexity of tasks delegated to unmanned systems their collective use is becoming of paramount importance for performing any reasonable jobs. An approach is offered where integral group behaviors...
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In this paper, the problem of employing behaviour-based approaches to realise complex, deliberative functionalities on high navigation layers is addressed. Behaviour-based architectures typically target at the lower, ...
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ISBN:
(纸本)9789898425751
In this paper, the problem of employing behaviour-based approaches to realise complex, deliberative functionalities on high navigation layers is addressed. Behaviour-based architectures typically target at the lower, more reactive aspects of robot navigation. Hence, it is usually not possible to profit from the advantages of behaviours at higher layers. The authors believe that this limitation is not necessary and suggest the use of behaviour activity sequences as a solution. As central element for the realisation of these sequences, a special generic coordination behaviour is introduced in this paper. It is explained how behaviour activity sequences can be used to generate robot motions as well as to recognise certain situations which a robot may encounter. As examples, the behaviour-based generation of turning manoeuvres and the recognition of dead ends with behaviour activity sequences are shown. The developed concepts demonstrate how to benefit from the typical properties of behaviour-based approaches without limiting the developer to mainly reactive systems.
This paper presents waypoint guidance based planar path following and obstacle avoidance for Autonomous Underwater Vehicles (AUV). Guidance through waypoints by line-of-sight (LOS) method and artificial potential fiel...
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ISBN:
(纸本)9789898425751
This paper presents waypoint guidance based planar path following and obstacle avoidance for Autonomous Underwater Vehicles (AUV). Guidance through waypoints by line-of-sight (LOS) method and artificial potential field method (APFM) are used to develop the algorithm. Both LOS and PFM are simple and computationally inexpensive and can be used for real-time implementation. The basic LOS method has been modified for reference heading correction with a distance threshold in order to achieve minimal calculation for heading correction and smoother vehicle turn during course change at waypoints. An improved potential field method is also proposed for better obstacle avoidance for the AUV. Few points are taken from the path generated by the waypoint guidance and given as via points for the obstacle avoidance algorithm. The proposed algorithm basically follows the improved LOS method when there is no obstacle along the vehicle's path and switches to APFM when any obstacle is detected. The details of the algorithm and simulation results are presented.
In this paper a new method for detecting multiple structural breaks, i.e. undesired changes of signal behavior, is presented and applied to real-world data. It will be shown how Chernoff Bounds can be used for highper...
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ISBN:
(纸本)9789898425744
In this paper a new method for detecting multiple structural breaks, i.e. undesired changes of signal behavior, is presented and applied to real-world data. It will be shown how Chernoff Bounds can be used for highperformance hypothesis testing after preprocessing arbitrary time series to binary random variables using k-means-clustering. Theoretical results from part one of this paper have been applied to real-world time series from a pharmaceutical wholesaler and show striking improvement in terms of forecast error reduction, thereby greatly improving forecast quality. In order to test the effect of structural break detection on forecast quality, state of the art forecast algorithms have been applied to time series with and without previous application of structural break detection methods.
The paper concerns the result of the implementation of classic point to plane 3D data registration method with an improvement based on GPGPU parallel computation. 3D data is delivered by mobile robot equipped with 3D ...
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Bilateral teleoperation system are prone to instability coming out from the time-delay introduced by the indeterministic communication channel. This problem has been subject of intensive research under the assumption ...
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This paper presents the application of Wavelet based State Dependent Parameter (WSDP) models to the identification of a Continuous Stirred-Tank Reactor (CSTR). Here, in order to characterize the process dynamics which...
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This paper presents the application of Wavelet based State Dependent Parameter (WSDP) models to the identification of a Continuous Stirred-Tank Reactor (CSTR). Here, in order to characterize the process dynamics which is highly nonlinear and multi-variable dependent, 2-D WSDP model is used. The simulation results demonstrate the effectiveness and advantages of the identified model.
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