作者：
Zou, ChaoLu, Yueming
Ministry of Education Beijing University of Posts and Telecommunications Beijing 100876 China
As consistent time scale is essential to facilitate group operations and improve network performance, time synchronization is regard as a critical piece of infrastructure for distributed networkmeasurement and contro...
详细信息
This paper presents a RGB-D aided inertial navigation system that uses RGB-D sensor and low cost inertial measurementsensors (IMU) to provide state estimates for micro aerial vehicles (MAV) in GPS-denied indoor envir...
详细信息
ISBN:
(纸本)9781479930807
This paper presents a RGB-D aided inertial navigation system that uses RGB-D sensor and low cost inertial measurementsensors (IMU) to provide state estimates for micro aerial vehicles (MAV) in GPS-denied indoor environments. The state estimation approach is based on the invariant observer theory which is developed for systems possessing symmetries. In our system, we review the invariant observer theory and design the invariant observer (Invariant Extended Kalman Filter, IEKF) based on the analysis of system symmetry for the RGB-D aided inertial navigation model evolving on a Lie group. In addition, a robust RGB-D based motion estimation approach is developed to provide relative pose estimates using feature correspondences captured by the RGB-D sensor. The RGB-D estimates are fused with inertial measurements through the IEKF-based observer which yields a simplified error dynamics and simplilies the calculation of gain matrices. The resulting framework is implemented and validated on a MAV, and experimental results from actual indoor flight tests demonstrate the effectiveness of the approach.
Wireless sensornetworks (WSN) based on unmanned aerial vehicles (UAV) are ideal platforms for monitoring dynamics over larger service area. On the other hand, aerial sensornetworks (ASNs) are often required to be co...
详细信息
ISBN:
(纸本)9781467389990
Wireless sensornetworks (WSN) based on unmanned aerial vehicles (UAV) are ideal platforms for monitoring dynamics over larger service area. On the other hand, aerial sensornetworks (ASNs) are often required to be connected with a command center for sending data and receiving control messages in real time. In this paper, we study the problem of path planning for ASNs with connectivity constraints. The primary goal of path planning is driving UAVs to locations where the most informative measurements can be collected. Meanwhile, the worst link's capacity is assured to be greater than a pre-defined requirement. We proposed a solution for the path planning problem and it consists of two modules: network coordinator (NC) and motion controller (MC). The NC manages the topology of relay-assisted wireless communication networks. For the design of MC, we compare two motion strategies: maximum entropy and maximum mutual information. The simulation results show that our proposed solution achieves accurate signal reconstruction while maintaining the connectivity. We conclude that it's important to enable UAV-to-UAV communications for future ASN-based applications.
We have developed three kinds of a positioning system using an electronic track flatcar loaded on a large water tank for directivity measurements of LED-panel. Three applications are an underwater horizontal directivi...
详细信息
A methodology for generating optimal sensor location design for wireless sensornetwork (WSN) is presented. Location of sensors, cost of measurement and frequency of sampling are important factors that have been incor...
详细信息
A methodology for generating optimal sensor location design for wireless sensornetwork (WSN) is presented. Location of sensors, cost of measurement and frequency of sampling are important factors that have been incorporated in the sensornetwork design formulation. The proposed methodology is based on the beacon-less location discovery scheme between the quality of state estimation and the total measurement cost associated with the sensornetwork. To accommodate different sampling frequencies and evaluate their effect on state estimation accuracy, a unique method is used. In general, higher accuracies of the state estimates are realizable at expense of higher measurement cost. Incorporation of these conflicting objectives of minimizing measurement cost and maximizing estimation accuracy results in a combinatorial optimization problem. The resulting solutions can be then analyzed by the process designer for determining an appropriate WSN.
This paper present the analysis of sensor less speed control of Doubly fed induction machines using various intelligence techniques like Fuzzy logic, Artificial Neural network (ANN), Fuzzy logic etc. and the whole ana...
详细信息
ISBN:
(纸本)9781467394178
This paper present the analysis of sensor less speed control of Doubly fed induction machines using various intelligence techniques like Fuzzy logic, Artificial Neural network (ANN), Fuzzy logic etc. and the whole analysis reveals the better dynamic performance of sensor less speed estimation over tradition method of speed and current measurement which reduces the error in the measurement of parameters, better noise immune, more efficient and reliable system.
There is large change in the utilization of wireless sensornetwork over the last few years. A Wireless sensornetwork essentially consists of a group of nodes deployed for monitoring the system via means of measureme...
详细信息
ISBN:
(纸本)9781467394178
There is large change in the utilization of wireless sensornetwork over the last few years. A Wireless sensornetwork essentially consists of a group of nodes deployed for monitoring the system via means of measurement of its parameters. WSN mostly consist of two terms i.e. wireless network and sensors. Wireless sensor is a significant technology designed for large-scale monitoring, providing sensormeasurement at high temporal and spatial resolution. The primary aim for the wireless sensornetwork are accuracy, reliability, flexibility, cost effectiveness, and no difficulty of deployment. This paper presents general idea of a variety of routing protocol which are particularly designed for sensornetwork. We have studied three routing protocols and have compared these according to different parameters.
The proceedings contain 65 papers. The special focus in this conference is on Information Systems Design and Intelligent Applications. The topics include: A new private security policy approach for DDoS attack defense...
ISBN:
(纸本)9788132227564
The proceedings contain 65 papers. The special focus in this conference is on Information Systems Design and Intelligent Applications. The topics include: A new private security policy approach for DDoS attack defense in NGNs;an effective approach for providing diverse and serendipitous recommendations;envelope fluctuation reduction for WiMAX MIMO-OFDM signals using adaptive network fuzzy inference systems;modeling and performance analysis of free space quantum key distribution;design of a low-delay-write model of a TMCAM;SLA based e-learning service provisioning in cloud;estimating the similarities of G7 countries using economic parameters;offline malayalam character recognition;a comparative study on load balancing algorithms for SIP servers;design of wireless sensornetwork based embedded systems for aquaculture environment monitoring;a tangible learning system for hard-of hearing children;creating low cost multi-gesture device control by using depth sensing;evaluation of glomerular filtration rate by single frame method applying gates formula;design and development of cost effective wearable glove for automotive industry;tampering localization in digital image using first two digit probability features;classification of bank direct marketing data using subsets of training data;offline writer identification and verification-a state-of-the-art;handwritten oriya digit recognition using maximum common subgraph based similarity measures;design of non-volatile SRAM cell using memristor;evolutionary algorithm based LFC of single area thermal power system with different steam configurations and non-linearity;game theory and its applications in machine learning and a hybrid NN-GA model based approach.
The proceedings contain 37 papers. The special focus in this conference is on Industrial Advancement. The topics include: Integrated autopilot complex system proposal for aircraft model application;maximizing the deli...
ISBN:
(纸本)9783319608334
The proceedings contain 37 papers. The special focus in this conference is on Industrial Advancement. The topics include: Integrated autopilot complex system proposal for aircraft model application;maximizing the delivery rate for DTN networks;application to an automated manufacturing system;normalized compression distance based implementation for text data;adaptive methods of process state evaluation: the development of an application for engineering purposes;detection of finger flexions based on decision tree;a new fuzzy clustering algorithm to enhance lifetime of wireless sensornetworks;exploratory data analysis of software requirements using statistics and kohonen’s self-organizing map;method for estimation of software requirements using neural network based classification technique;fall detection for elderly based on background subtraction and key points matching;active and reactive power robust control of doubly fed induction generator wind turbine to satisfy new grid codes;scalable addressing mechanism for structured P2P networks;improving the speed and quality of extreme learning machine by conjugate gradient method;new multi-criteria decision-making based on fuzzy similarity, distance and ranking;application in EOLES european project;analysis of air pollution in vertical profile using self-organizing maps;an enhanced delay time model to support evidence based maintenance in healthcare domain;a novel ant colony optimization based cryptanalysis of substitution cipher;software defined stochastic model for moving target defense;adaptive educational games using game metrics and the future of education.
Edge computing has been extensively used in industries to solve problems such as data explosion. However, in the field of mechanical equipment fault diagnosis, there are still problems such as the large amount of data...
详细信息
暂无评论