Unmanned combat vehicle group is composed of different intelligent individuals which can obtain location information by sensor installed on vehicle. Try to relocate the vehicle that cannot obtain location information ...
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ISBN:
(纸本)9781728190327
Unmanned combat vehicle group is composed of different intelligent individuals which can obtain location information by sensor installed on vehicle. Try to relocate the vehicle that cannot obtain location information for certain reason by itself, center control unit can use fog calculating method basing on information delivered by other appropriate close vehicles, combined with particle filtering and Bayesian prediction, then center control unit inform whole unmanned combat vehicle group to ensure cooperative combat.
In this paper, we present a scheme to solve the problem to explore, cover and define paths in dangerous environments. The proposal is organized in three phases: exploration, mapping and path planning. Swarm robotics i...
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ISBN:
(纸本)9781450372886
In this paper, we present a scheme to solve the problem to explore, cover and define paths in dangerous environments. The proposal is organized in three phases: exploration, mapping and path planning. Swarm robotics is used in the first phase along with a stigmergy approach for the communication between the agents. The explored cell will be stored in order to create a grid map. In the path planning phase, a multiobjective problem is used to minimize distance and danger, through a graph obtained by an adapted RRG, and a genetic algorithm called modified NSGA-II.
For traditional detection method used in expressway tunnel has the disadvantages of low detection speed, high risk and cannot realize disease information management, a method of design, implement and field test of veh...
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ISBN:
(纸本)9781450365307
For traditional detection method used in expressway tunnel has the disadvantages of low detection speed, high risk and cannot realize disease information management, a method of design, implement and field test of vehicle-based experiment prototype for expressway tunnel intelligent detection is proposed in this paper. Firstly, based on the demands of expressway tunnel detection, the performance indicators of tunnel intelligent detection system are developed, which include detection speed, detection accuracy, visual system depth and so on. Then, for the visual system, inertial navigation system and mechanical system, an application-oriented method of hardware calculation, selection and design for tunnel detection system is proposed. Finally, according to the above conclusions, the vehicle-based experiment prototype is developed, and field test is carried out in expressway tunnel. The engineering practice shows that the developed tunnel intelligent detection system can collect tunnel surface image quickly and high quality, and the research results laid a foundation for tunnel intelligent system developing, image processing and disease intelligent identifying in the next step.
For the requirements of automation, especially robot-based automation in the domain of construction, a mobile manipulator for the application on construction sites in semi structured environment is presented in this p...
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ISBN:
(纸本)9781538670668
For the requirements of automation, especially robot-based automation in the domain of construction, a mobile manipulator for the application on construction sites in semi structured environment is presented in this paper. The kinematics of each component of the system is analyzed. In two different cases, sensor fusion method and hybrid force position control method are presented to implement the tip localization of the mobile manipulator. The experiment shows that the studied mobile manipulator can accomplish the on-site work discussed in this paper.
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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Session 1 includes 109 papers selected from 2011 3rdinternational Asia conference on informatics in control, automation and robotics (CAR 2011), held on December 24-25, 2011, Shenzhen, China. This session will act as...
ISBN:
(纸本)9783662521236
Session 1 includes 109 papers selected from 2011 3rdinternational Asia conference on informatics in control, automation and robotics (CAR 2011), held on December 24-25, 2011, Shenzhen, China. This session will act as an international forum for researchers and practitioners interested in the advances in and applications of Intelligent control Systems. It is an opportunity to present and observe the latest research, results, and ideas in these areas. Intelligent control is a rapidly developing, complex, and challenging field of increasing practical importance and still greater potential. Its applications have a solid core in robotics and mechatronics but branch out into areas as diverse as process control, automotive industry, medical equipment, renewable energy and air conditioning. So, this session will aim to strengthen relationships between industry, research laboratories and universities. All papers published in session 1 will be peer evaluated by at least two conference reviewers. Acceptance will be based primarily on originality and contribution.
When transportation engineers try to monitor the trend of congestions to early warning the connectivity deterioration between every two important districts, problem they meet first is how to divide urban area into sma...
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ISBN:
(纸本)9781424451944
When transportation engineers try to monitor the trend of congestions to early warning the connectivity deterioration between every two important districts, problem they meet first is how to divide urban area into small zones which can fit the connectivity and accessibility analysis. In this paper, we solved this problem by calculating and analyzing the topological structure of road network. After comparing several indices, we found Local Depth value in Space Syntax theory is very suitable for helping the zone division. At last, we apply this method in Shanghai urban area and get an encouraging result. Moreover, most of accessibility oriented zones divided by local depth value also agrees well with people's cognition of regions.
In analyzing the nonlinearity characteristics and strong interference of traffic flow parameters, a new approach has been proposed for the prediction of traffic flow parameters. First, multi-scale analysis is used to ...
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ISBN:
(纸本)9781424451944
In analyzing the nonlinearity characteristics and strong interference of traffic flow parameters, a new approach has been proposed for the prediction of traffic flow parameters. First, multi-scale analysis is used to decompose the sequences of traffic flow parameters into the low and high frequency ones and restore them according to the reconstruct principle of wavelet coefficients. Then artificial neural network is used in multi-scale forecast of these coefficients, with gene algorithm for optimization. Finally, some real detected traffic data are used to testify the precision of the model. The results show that the model can produce more accurate predictions than with traditional artificial neural network model.
The authors have developed a new type of active engine mount. The active engine mount is consisted of an electromagnetic actuator and an inertia-modulator hydraulic mount. The decoupler motion is controlled by the dyn...
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ISBN:
(纸本)9781424451944
The authors have developed a new type of active engine mount. The active engine mount is consisted of an electromagnetic actuator and an inertia-modulator hydraulic mount. The decoupler motion is controlled by the dynamic force generated by the electromagnetic actuator. The pressure in the upper chamber is changed and as a result the net output force from the mount to the chassis is controlled. The filtered x-LMS adaptive feed-forwardcontrol was chosen as control method. Based on force analyses of system parts, a mathematical model of the active engine mount was established. And an experimental device was designed and produced. The result indicate that the active engine mount can achieve better vibration isolation performance than passive engine mount.
The paper describes conceptual design, control strategies and full simulation for a new fully autonomous lower limb exoskeleton system for human motion enhancement. The exoskeleton supports the subject weight and prov...
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ISBN:
(纸本)9781509060887
The paper describes conceptual design, control strategies and full simulation for a new fully autonomous lower limb exoskeleton system for human motion enhancement. The exoskeleton supports the subject weight and provides an additional strength and endurance to the subject. The designed exoskeleton is able to decouple the weight/mass carrying function of the system from its forward motion function. This newly proposed approach effectively reduces the power and size of propulsion motors and thus the overall weight, cost of the system. It also allows the exoskeleton to operate for extended periods without being frequently recharged. The decoupling takes place by placing a passive air cylinder across the joint and blocking the motion at knee joint. The cylinder is actuated when the weight on one leg reaches the maximum predetermined value. The mechanism of the exoskeleton features a seat to rest the subject's body weight at that particular moment. However, it is the subject that responsible for moving the legs in swinging motion. The flexible sensors attached to the subject legs together with the hip and knee motors help to prevent obstruction caused by the exoskeleton structure to the subject leg in free swinging motion. The motors force the system to precisely follow the subject's leg motion in the swinging stage due to the close-loop controller with the feedback from flexible sensors. The mechanical structure of each leg has six degrees of freedom: four at the hip, one at the knee and one at the ankle. This exoskeleton is power efficient because the smaller electrical motors are used to drive the exoskeleton mechanical system and do not to support the weight like in the most of the existing exoskeleton designs.
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