Top-down Fabricated Gold Nanostrip on Silicon-on-insulator Wafer: A Promising Building Block towards Ultra-compact Optical Device

he plasmonic waveguide is the fundamental building block for high speed, large data transmission capacity, low energy consumption optical communication and sensing. Controllable fabrication and simultaneously optimization of the propagation...

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Lane Detection Algorithm Based on Genetic Algorithm and its Parallel Computing Realization

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.479-481.65 ◽

2012 ◽

Vol 479-481 ◽

pp. 65-70

Author(s):

Xiao Hui Zhang ◽

Liu Qing ◽

Mu Li

Keyword(s):

Genetic Algorithm ◽

Data Transmission ◽

High Speed ◽

High Performance ◽

Large Data ◽

Detection Algorithm ◽

Lane Detection ◽

The Road ◽

Time Problem ◽

High Speed Data

Based on the target detection of alignment template, the paper designs a lane alignment template by using correlation matching method, and combines with genetic algorithm for template stochastic matching and optimization to realize the lane detection. In order to solve the real-time problem of lane detection algorithm based on genetic algorithm, this paper uses the high performance multi-core DSP chip TMS320C6474 as the core, combines with high-speed data transmission technology of Rapid10, realizes the hardware parallel processing of the lane detection algorithm. By Rapid10 bus, the data transmission speed between the DSP and the DSP can reach 3.125Gbps, it basically realizes transmission without delay, and thereby solves the high speed transmission of the large data quantity between processor. The experimental results show that, no matter the calculated lane line, or the running time is better than the single DSP and PC at the parallel C6474 platform. In addition, the road detection is accurate and reliable, and it has good robustness.

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Survivable Deployments of Optical Sensor Networks against Multiple Failures and Disasters: A Survey

Sensors ◽

10.3390/s19214790 ◽

2019 ◽

Vol 19 (21) ◽

pp. 4790 ◽

Cited By ~ 2

Author(s):

Yongjun Zhang ◽

Jingjie Xin

Keyword(s):

Sensor Networks ◽

Optical Communication ◽

Optical Sensor ◽

Data Transmission ◽

High Speed ◽

Optical Sensing ◽

Self Healing ◽

Multiple Failures ◽

Sensing Data ◽

Potential Development

Optical sensing that integrates communication and sensing functions is playing a more and more important role in both military and civil applications. Incorporating optical sensing and optical communication, optical sensor networks (OSNs) that undertake the task of high-speed and large-capacity applications and sensing data transmissions have become an important communication infrastructure. However, multiple failures and disasters in OSNs can cause serious sensing provisioning problems. To ensure uninterrupted sensing data transmission, survivability has always been an important research emphasis. This paper focuses on the survivable deployment of OSNs against multiple failures and disasters. We first review and evaluate the existing survivability technologies developed for or applied to OSNs, such as fiber bus protection, self-healing architecture, and 1 + 1 protection. We then elaborate on the disaster-resilient survivability requirement of OSNs. Moreover, we propose a new k-node (edge) sensing connectivity concept, which ensures the connectivity between sensing data and users. Based on k-node (edge) sensing connectivity, the disaster-resilient survivability technologies are developed. The key technologies necessary to implement k-node (edge) sensing connectivity are also elaborated. Recently, artificial intelligence (AI) has developed rapidly. It can be used to improve the survivability of OSNs. This paper details potential development directions of survivability technologies of optical sensing in OSNs employing AI.

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A low power data transfer and fusion algorithm for building energy consumption monitoring

International Journal of Low-Carbon Technologies ◽

10.1093/ijlct/ctz039 ◽

2019 ◽

Vol 14 (3) ◽

pp. 426-431 ◽

Cited By ~ 1

Author(s):

Cuimin Li ◽

Dandan Shen ◽

Lei Wang

Keyword(s):

Energy Consumption ◽

Data Transmission ◽

Building Energy ◽

Reduction Factor ◽

Low Energy ◽

Small Data ◽

Building Energy Consumption ◽

Fusion Algorithm ◽

Consumption Data ◽

Low Energy Consumption

Abstract Building Energy Internet of Things could collect and analyse various types of building energy consumption data in real time by means of low-energy consumption and high-precision sensing technology. In this paper, a low-energy consumption data transmission and fusion algorithm SMART-RR (Slice Mix Agg RegaTe-Repeatablibity Reduction) is proposed. Taking advantage of the periodic repeatability and data redundancy of building energy consumption data, a data fusion strategy with unequal long time intervals and adding repeatability reduction factor is proposed. The simulation results show that SMART-RR algorithm is a low-energy data transmission and fusion algorithm with small data traffic, high privacy protection and high accuracy.

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From Mirrors to Free-Space Optical Communication—Historical Aspects in Data Transmission

Future Internet ◽

10.3390/fi12110179 ◽

2020 ◽

Vol 12 (11) ◽

pp. 179

Author(s):

Magdalena Garlinska ◽

Agnieszka Pregowska ◽

Karol Masztalerz ◽

Magdalena Osial

Keyword(s):

Optical Communication ◽

Data Transmission ◽

Free Space ◽

Communication Systems ◽

High Speed ◽

Rapid Development ◽

Free Space Optical Communication ◽

Atmospheric Conditions ◽

Free Space Optical ◽

Space Optical Communication

Fast communication is of high importance. Recently, increased data demand and crowded radio frequency spectrum have become crucial issues. Free-Space Optical Communication (FSOC) has diametrically changed the way people exchange information. As an alternative to wire communication systems, it allows efficient voice, video, and data transmission using a medium like air. Due to its large bandwidth, FSOC can be used in various applications and has therefore become an important part of our everyday life. The main advantages of FSOC are a high speed, cost savings, compact structures, low power, energy efficiency, a maximal transfer capacity, and applicability. The rapid development of the high-speed connection technology allows one to reduce the repair downtime and gives the ability to quickly establish a backup network in an emergency. Unfortunately, FSOC is susceptible to disruption due to atmospheric conditions or direct sunlight. Here, we briefly discuss Free-Space Optical Communication from mirrors and optical telegraphs to modern wireless systems and outline the future development directions of optical communication.

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Paralleling Hydraulic Control of Variable Frequency Motor and Valve for the Swing Mechanism of Segment Erector

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1037.264 ◽

2014 ◽

Vol 1037 ◽

pp. 264-269

Author(s):

Xu Yang ◽

Guo Fang Gong ◽

Wei Qiang Wu ◽

Yun Yi Rao

Keyword(s):

High Speed ◽

Low Energy ◽

Variable Frequency ◽

Hydraulic Control ◽

Hydraulic Circuit ◽

Low Energy Consumption ◽

Working Principle ◽

Segment Erector ◽

Valve Control ◽

Speed And Accuracy

Aimed at achieving a high speed and precision circumferential positioning of pipe under low energy consumption, a paralleling hydraulic control of variable frequency motor and valve (PHC-VFMV) system is designed for the swing mechanism of segment erector. Firstly, with a view to the working principle of the swing mechanism, a hydraulic circuit of the PHC-VFMV is designed. Then, two sub-circuits of the hydraulic circuit are separately modeled and equipped with suitable controllers. Finally, one valve control (VC) system and the designed PHC-VFMV system are tested in AMEsim platform. Results show that, while guaranteeing a good performance of speed and accuracy, the PHC-VFMV could achieve a better performance in energy saving than VC.

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