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This paper concentrates on coordinate-free formation control for directed networks, for which the dynamic motion of each agent is assumed to be governed only by a local control. We develop a graph Laplacian approach to solve the global and exponential formation stablization problem using merely relative position measurements between neighbors. First, to capture the sensing and control architectures...
The difference of perceived glare between two different working modes (i.e., computer work and reading/writing) caused by LEDs in office was investigated. Discomfort glare are evaluated in two aspects, the general glare and overhead glare. For general glare study, all the LED luminaires installed in the ceiling of the experimental room were switched on to realize a uniform lighting distribution like...
In this study, we propose a VR system for allowing various types of interaction with virtual objects using an autostereoscopic mobile display and an accelerometer. The system obtains the orientation and motion information from the accelerometer attached to the mobile display and reflects them to the motion of virtual objects. It can present 3D images with motion parallax by estimating the position...
The paper studies the formation control problem for distributed robot systems. It is assumed each robot only has access to local sensing information (i.e. the relative positions and IDs of its neighbors). Taking into consideration physical sensing constraints (e.g. limited sensing range) and the motion of the robots over time, it may be noted that the sensing graph for the system is directed and time-varying...
The article studies on the parallel-connected buck converter under master-slave operation. Firstly, deduces the dynamical equations from the circuit structure, and gains the bifurcation and chaos diagram under the different parameters. Then, open out the reason of bifurcation and chaos by simple theoretical analysis. On basis of it, some chaos control method called phase-shift are putted forward,...
When the body is intruded, there is a congenital immune process to find and reduce the damage as quickly as possible. This is an important recovery character for the biology immune system. A model that simulates the biology's congenital immunity is introduced in the computer immune system. It has two basal agents, Damage Detector Agent and Congenital Response Agent. Damage Detector Agent finds intrusion...
This paper addresses the problem of the quantization of control systems in which the sate of the system is quantized via a quantizer. In addition, some constraints about input/output or state are also considered. In this paper, a control methodology for the constrained system is proposed. Specifically, an idea of a positively invariant set is introduced to satisfy the constraints and by which the...
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