scholarly journals Design control system for Pan-Tilt Camera for Visual Tracking based on ADAR method taking into account energy output

2021 ◽  
Vol 279 ◽  
pp. 02007
Author(s):  
Ph.C. Tran ◽  
H.Tr. Nguyen ◽  
A.Q. Nguyen ◽  
Th.Tr. Le ◽  
H.Ng. Phan ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Energy Consumption ◽  
Image Feature ◽  
Energy Output ◽  
Moving Target ◽  
Target Image ◽  
Simulation Results ◽  
Consumption Efficiency ◽  
Energy Components

In this paper, we propose a controller for a camera-based Pan-Tilt device. The approach uses the target image feature to steer the Pan-Tilt device to the target with random movement. Since these systems are often mounted on mobile equipment, energy efficiency should also be taken into account. In order to improve the control energy consumption efficiency of the Pan-Tilt system mounted with cammera, the authors use a dark objective function with optimal energy components to find controller parameters. Simulation results on the PanTilt system show that the camera can track a moving target quickly and stably and the control energy can be changed through the controller parameter according to the purpose of use.

scholarly journals Maximization of Energy Efficiency in Wireless ad hoc and Sensor Networks With SERENA

2009 ◽  
Vol 5 (1) ◽  
pp. 33-52 ◽  
Author(s):  
Saoucene Mahfoudh ◽  
Pascale Minet
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Ad Hoc ◽  
Idle State ◽  
Time Simulation ◽  
Simulation Results ◽  
Remaining Time ◽  
Slot Reuse ◽  
Node Energy

In wireless ad hoc and sensor networks, an analysis of the node energy consumption distribution shows that the largest part is due to the time spent in the idle state. This result is at the origin of SERENA, an algorithm to SchEdule RoutEr Nodes Activity. SERENA allows router nodes to sleep, while ensuring end-to-end communication in the wireless network. It is a localized and decentralized algorithm assigning time slots to nodes. Any node stays awake only during its slot and the slots assigned to its neighbors, it sleeps the remaining time. Simulation results show that SERENA enables us to maximize network lifetime while increasing the number of user messages delivered. SERENA is based on a two-hop coloring algorithm, whose complexity in terms of colors and rounds is evaluated. We then quantify the slot reuse. Finally, we show how SERENA improves the node energy consumption distribution and maximizes the energy efficiency of wireless ad hoc and sensor networks. We compare SERENA with classical TDMA and optimized variants such as USAP in wireless ad hoc and sensor networks.

scholarly journals Balance the Energy Consumption of Geographic Hashing Location Service in Wireless Sensor and Actor Networks

2019 ◽  
Vol 15 (08) ◽  
pp. 74
Author(s):  
Zhaolin Wang ◽  
Zhezhuang Xu ◽  
Renxu Xie ◽  
Haotian Yan
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Load Balance ◽  
Efficient Solution ◽  
Geographic Routing ◽  
Wireless Sensor ◽  
Energy Aware ◽  
Location Service ◽  
Simulation Results ◽  
Actor Networks

Location service is an efficient solution to handle actor mobility in wireless sensor and actor networks. Geographic hashing location service (GHLS) is a flat hashing-based protocol which has better energy efficiency than other location service protocols. Nevertheless, GHLS suffers from unbalanced energy consumption due to the fixed hashed region. In this paper, we propose a new protocol termed as GHLS-R<sup>2</sup> to achieve load balance in two aspects: location server rotation and energy-aware geographic routing. Simulation results show that GHLS-R<sup>2</sup> protocol can effectively balance the energy consumption, and hence prolong the network lifetime significantly.

scholarly journals Exploiting Data-dependencies in Ultra Low-power DSP Arithmetic

VLSI Design ◽  
2001 ◽  
Vol 12 (3) ◽  
pp. 349-363
Author(s):  
V. A. Bartlett ◽  
E. Grass
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Low Power ◽  
Energy Efficient ◽  
Dynamic Logic ◽  
Low Power Consumption ◽  
Ultra Low Power ◽  
Data Dependencies ◽  
Simulation Results ◽  
Asynchronous Environments

Strategies for the design of ultra low power multipliers and multiplier-accumulators are reported. These are optimized for asynchronous applications being able to take advantage of data-dependent computation times. Nevertheless, the low power consumption can be obtained in both synchronous and asynchronous environments. Central to the energy efficiency is a dynamic-logic technique termed Conditional Evaluation which is able to exploit redundancies within the carry-save array and deliver energy consumption which is also heavily data-dependent.Energy efficient adaptations for handling two's complement operands are introduced. Area overheads of the proposed designs are estimated and transistor level simulation results of signed and unsigned multipliers as well as a signed multiplier-accumulator are given.Normalized comparisons with other designs show our approach to use less energy than other published multipliers.

The Energy Efficiency Reconstruction and Energy Consumption Assessments about a Library in Guangzhou

2011 ◽  
Vol 374-377 ◽  
pp. 672-676
Author(s):  
Liu Zhi Chen ◽  
Xiao Ning Xu ◽  
Han Wei Liu
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Energy Consumption ◽  
Air Conditioning ◽  
Network Control ◽  
Operational Control ◽  
Network Control System ◽  
Air Conditioning System ◽  
Operational Management ◽  
Central Air Conditioning

How to reduce the energy consumption of the central air-conditioning is important for the building energy efficiency. The energy efficiency reconstruction of the central air-conditioning system on one library in Guangzhou is completed with the network control system self-developed. The operational control and operational management is integrated in the network control system. The energy consumption before and after reconstruction about the air-conditioning system of the library is detected and analyzed in the paper. The result shows the mode that operational control and operational management integrated has better energy efficiency.

Modeling and Simulation of PTZ System Based on DC Torque Motor

2014 ◽  
Vol 644-650 ◽  
pp. 438-441
Author(s):  
Xiao Bin Li ◽  
Hong Qi Wu ◽  
Jin Wang ◽  
Zhan Jun Yuan
Keyword(s):  
Mathematical Modeling ◽  
Control System ◽  
Engineering Design ◽  
Design Method ◽  
Moving Target ◽  
Tracking Accuracy ◽  
Fast Tracking ◽  
Modeling Methods ◽  
Tracking Ability ◽  
Simulation Results

A kind of design scheme of PTZ control system based on DC torque motor was proposed to improve fast tracking ability and tracking accuracy of moving target. The mathematical modeling methods for each link were given and the parameters were determined with the help of engineering design method. The simulation results showed that the system had higher location accuracy, better tracking performance and could satisfy the design request.

A Voronoi- Ant Colony based Routing (VoR-Ant-R) Algorithm for WMSNs

2022 ◽  
Vol 13 (2) ◽  
pp. 0-0
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Ant Colony ◽  
Delivery Ratio ◽  
Wireless Multimedia ◽  
Energy Hole ◽  
Packet Delivery ◽  
Multimedia Sensor Networks ◽  
Increase Energy Efficiency ◽  
Simulation Results

Wireless Multimedia Sensor Networks (WMSNs) have been used in many applications and powerful distributed systems. But the performance of WMSNs is suffering from the occurrence of energy holes. To improve the performance of the network and packet delivery ratio, a Voronoi-Ant colony based Routing (VoR-Ant-R) algorithm is proposed for WMSNs to discover the energy holes and finds the shortest path from the source to destination in the WMSNs even though faces some obstacles. The WMSNs are constructed using the Voronoi structure to bypass energy holes. After bypassing the energy hole in the path; an ACO is introduced to select a neighborhood node for data forwarding. This ACO constructs the shortest optimized path to enhance the performance of the WMSNs. The proposed work is experimentally compared with other algorithms such as IEEABR, EEABR, SC, and BEES. The simulation results show that VoR-Ant-R can increase energy efficiency, success rate, reduces energy consumption, and latency.

Energy Efficient Cognitive M2M Communications

2016 ◽  
Vol 8 (3) ◽  
pp. 1-9 ◽  
Author(s):  
S. Alabadi ◽  
Predrag Rapajic ◽  
K. Arshad ◽  
Soheil Rostami
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Cognitive Radio ◽  
Energy Efficient ◽  
Mode Switching ◽  
Sleep Mode ◽  
Reduce Energy Consumption ◽  
Simulation Results ◽  
To Come ◽  
Utilisation Efficiency

The number of Machine-to-Machine (M2M) devices has increased massively in the last few years and will continue to increase in the years to come. Spectrum utilisation efficiency and energy efficiency are the main challenges and design goals for M2M networks. Cognitive radio (CR) is a promising technology that can address these challenges. In this paper, the authors have proposed and developed an energy efficient mechanism to reduce energy consumption in Cognitive M2M (CM2M) networks. Their solution guarantees the throughput and reliability constraints for CM2M Devices (CM2MDs). The proposed mechanism can reduce energy consumption in CM2M networks by exploiting efficient sensing and accessing schemes for CM2MDs. The authors further develop sleep-mode/switching and accessing techniques to work efficiently with the proposed mechanism. The simulation results show that the proposed mechanism guarantees a desirable throughput and reduces overall energy consumption in the network.

Analysis of Energy Consumption Efficiency Based on DEA-Tobit

2011 ◽  
Vol 84-85 ◽  
pp. 739-742
Author(s):  
Zheng Yuan Jia ◽  
Chuan Cai Li ◽  
Di Yuan
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Influencing Factors ◽  
Tobit Model ◽  
Jiangsu Province ◽  
Downward Trend ◽  
Positive Correlation ◽  
Fixed Assets ◽  
Object Of Study ◽  
Consumption Efficiency

This template takes the data of energy consumption indicators in Jiangsu Province from 1996 to 2009 as the object of study, evaluated its energy efficiency and analyzed the influencing factors using DEA-Tobit model. The conclusion believed that the energy efficiency has a downward trend in Jiangsu Province after 2000. The energy efficiency has positive correlation with population, fixed assets investment and energy consumption.

scholarly journals An Integrated Energy Simulation Model for Buildings

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1170 ◽  
Author(s):  
Nikolaos Kampelis ◽  
Georgios I. Papayiannis ◽  
Dionysia Kolokotsa ◽  
Georgios N. Galanis ◽  
Daniela Isidori ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Building Energy ◽  
Energy Performance ◽  
Energy Modeling ◽  
Initial Model ◽  
Building Energy Modeling ◽  
Novel Approach ◽  
Efficiency Measures ◽  
Simulation Results

The operation of buildings is linked to approximately 36% of the global energy consumption, 40% of greenhouse gas emissions, and climate change. Assessing the energy consumption and efficiency of buildings is a complex task addressed by a variety of methods. Building energy modeling is among the dominant methodologies in evaluating the energy efficiency of buildings commonly applied for evaluating design and renovation energy efficiency measures. Although building energy modeling is a valuable tool, it is rarely the case that simulation results are assessed against the building’s actual energy performance. In this context, the simulation results of the HVAC energy consumption in the case of a smart industrial near-zero energy building are used to explore areas of uncertainty and deviation of the building energy model against measured data. Initial model results are improved based on a trial and error approach to minimize deviation based on key identified parameters. In addition, a novel approach based on functional shape modeling and Kalman filtering is developed and applied to further minimize systematic discrepancies. Results indicate a significant initial performance gap between the initial model and the actual energy consumption. The efficiency and the effectiveness of the developed integrated model is highlighted.

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