Research and Implementation of Image Transmission Key Technological Based on WSN

2014 ◽  
Vol 989-994 ◽  
pp. 4759-4762
Author(s):  
Zhong Sheng Wang ◽  
Dong Li Huang
Keyword(s):  
Data Transmission ◽  
Image Transmission ◽  
Low Complexity ◽  
Cmos Camera ◽  
Final Test ◽  
Control Center ◽  
Data Packets ◽  
Arm Processor ◽  
Zigbee Technology ◽  
Network Transmission

ZigBee technology is mainly used in short distance, low power consumption, low rate, low complexity of equipments for data transmission. When image has a large amount of data, it should be processed firstly, and then transmitted. This essay makes a research on healthy care system, using CMOS camera to get image and compress image. Then, the compressed image is transferred to ARM processor, and divided into data packets according to the requirement of the ZigBee network transmission. Finally, the image is transferred to control center and displayed. After the final test, this system can get images to meet the requirements, which has some practical values.

Single-lane >100 Gb/s CAP-based data transmission over VCSEL-MMF links using low-complexity equalization

2021 ◽  
Author(s):  
Nikos Bamiedakis ◽  
Xiaohe Dong ◽  
David G. Cunningham ◽  
Ian H. White ◽  
Richard V. Penty
Keyword(s):  
Data Transmission ◽  
Low Complexity

scholarly journals Performance of Polar-Coded 3D Image Transmission over Fading Channel

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Jianjun Hao ◽  
Luyao Liu ◽  
Wei Chen
Keyword(s):  
White Noise ◽  
Data Transmission ◽  
Fading Channel ◽  
Point Cloud ◽  
Gaussian White Noise ◽  
Image Data ◽  
Image Transmission ◽  
Transmission System ◽  
3D Point Cloud ◽  
3D Image

Any signal transmitted over an air-to-ground channel is corrupted by fading, noise, and interference. In this paper, a Polar-coded 3D point cloud image transmission system with fading channel is modeled, and also the simulation is performed to verify its performance in terms of 3D point cloud image data transmission over Rician channel with Gaussian white noise and overlap of Gaussian white noise + periodic pulse jamming separately. The comparison of Polar-coded scheme with RS-coded scheme in the same scenario indicates that Polar-coded system gives far better performance against AWGN noise and fading than the RS-coded system does in the case of short block length. But RS-coded scheme shows better performance on antipulse jamming than that of Polar-coded scheme, while there is no interleaving between codewords.

scholarly journals High Capacitive Secure Image Transmission Over Wireless Channels

2021 ◽  
Vol 10 (2) ◽  
pp. 564-570
Keyword(s):  
Medical Care ◽  
Data Transmission ◽  
Communication Systems ◽  
Wireless Channels ◽  
Clinical Information ◽  
Image Transmission ◽  
Care Practice ◽  
Text Data ◽  
Open Networks ◽  
Security Algorithm

Expansion of internet connectivity and its usage globally has increased various demands of providing security for the data transmission. Telemedicine is a modern way of medical care that can be extended to any remote place across the globe. This medical care practice is a result of the deployment of communication systems and information technology into healthcare system. With this technology the diagnosed data can be shared with physician and take his consultation remarks and also physicians can access to diagnostic archive and share for medical practice and learning. However, this exchange of information is confined with several risks of data theft when they are shared in open networks and hence they are to be protected with high security algorithms. This paper provides a high capacitive security algorithm for protecting the images with hidden confidential information. The approach provides a two-way security by encrypting the clinical information initially and embedding it imperceptibly in the concerned image so that the user on other can obtain both the visual and text data at same instance

Transmission of Image Information in the Network Multimedia Teaching

2014 ◽  
Vol 571-572 ◽  
pp. 867-872
Author(s):  
Xiao Yun Liu ◽  
Li Ting Xiong ◽  
Jian Shen
Keyword(s):  
Information Transmission ◽  
Data Transmission ◽  
Video Data ◽  
Transmission Delay ◽  
Buffer Size ◽  
Information Network ◽  
Teaching System ◽  
Image Information ◽  
Multimedia Teaching ◽  
Network Transmission

To solve the problem of image information transmission delay in the network multimedia teaching system, the compression and multicast solutions are put forward on the basis of usual screen blocking skill of data. According to the characteristics of the multimedia teaching system, the screen changes typically little at smaller intervals. It means that only a few screen blocks, which are changing, are needed to be transferred by screen blocking skill. At the same time, the network video data transmission volume is further curtailed through compression and multicast so that the multimedia information network transmission delay is decreased. The minimal buffer size for allocation is determined to ensure the smooth transmission of video data in the multimedia teaching system.

scholarly journals Fast and Reliable Burst Data Transmission for Backscatter Communications

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5418 ◽  
Author(s):  
Jumin Zhao ◽  
Xiaojuan Liu ◽  
Dengao Li
Keyword(s):  
Energy Harvesting ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Data Transmission ◽  
Large Data ◽  
Data Packets ◽  
Frame Length ◽  
Channel Conditions ◽  
Burst Data ◽  
Frequency Identification

Computational radio frequency identification (CRFID) sensors are able to transfer potentially large amounts of data to the reader in the radio frequency range. However, the existing EPC C1G2 protocol is inefficient when there are abundant critical and emergency data to be transmitted and cannot adapt to changing energy-harvesting and channel conditions. In this paper, we propose a fast and reliable method for burst data transmission by fragmenting large data packets into blocks and we introduce a burst transmission mechanism to optimize the EPC C1G2 communication procedure for burst transmission when there are critical and emergency data to be transmitted. In addition, we utilize erasure codes to reduce Acknowledgement (ACK) delay and to improve system reliability. Our results show that our proposed scheme significantly outperforms the current fixed frame length approach and the dynamic frame length and charging time adaptation scheme (DFCA) and that the goodput is close to the theoretically optimal value under different energy-harvesting and channel conditions.

Data Transmission Oriented on the Object, Communication Media, Application, and State of Communication Systems

2011 ◽  
Vol 3 (2) ◽  
pp. 51-65
Author(s):  
Mike Sabelkin ◽  
François Gagnon
Keyword(s):  
Data Transmission ◽  
Channel Coding ◽  
Communication Systems ◽  
Reference Model ◽  
Image Transmission ◽  
Wireless Channel ◽  
Superior Performance ◽  
Communication Media ◽  
Fast Analysis ◽  
Wide Range

The proposed communication system architecture is called TOMAS, which stands for data Transmission oriented on the Object, communication Media, Application, and state of communication Systems. TOMAS could be considered a Cross-Layer Interface (CLI) proposal, since it refers to multiple layers of the Open Systems Interconnection Basic Reference Model (OSI). Given particular scenarios of image transmission over a wireless LOS channel, the wireless TOMAS system demonstrates superior performance compared to a JPEG2000+OFDM system in restored image quality parameters over a wide range of wireless channel parameters. A wireless TOMAS system provides progressive lossless image transmission under influence of moderate fading without any kind of channel coding and estimation. The TOMAS system employs a patent pending fast analysis/synthesis algorithm, which does not use any multiplications, and it uses three times less real additions than the one of JPEG2000+OFDM.

Design of Wireless Intelligent Home Control System Based on Zigbee Technology

2013 ◽  
Vol 416-417 ◽  
pp. 900-903 ◽  
Author(s):  
Yu Hang Jiang ◽  
Hong Xia Yang
Keyword(s):  
Control System ◽  
Power Consumption ◽  
Low Power ◽  
Data Transmission ◽  
Intelligent System ◽  
Reaction Time Data ◽  
Low Power Consumption ◽  
Time Data ◽  
Intelligent Home ◽  
Zigbee Technology

Zigbee technology is a kind of bi-directional wireless communication technology characterized by close distance, low complexity, low power consumption, low speed and low cost. It is mainly used for data transmission of various electronic equipments with short distance, low power consumption and low transmission speed, as well as application of typical periodic data, intermittent data and low reaction time data transmission. This thesis first of all makes an analysis of characteristics of zigbee technology, based on which the design of wireless intelligent home control system based on zigbee technology is proposed. Finally, it gives an analysis of the daily management and maintenance of intelligent system, so as to contribute to further studies.

Smart Power Meter System Based on ZigBee

2013 ◽  
Vol 860-863 ◽  
pp. 1877-1880
Author(s):  
Zhi Qun Cheng ◽  
Lun Kang ◽  
Yong Cheng
Keyword(s):  
Wireless Communication ◽  
Wireless Network ◽  
Data Transmission ◽  
Basic Function ◽  
Smart Power ◽  
Power Meter ◽  
Zigbee Technology ◽  
At Command ◽  
Zigbee Protocol ◽  
Communication Distance

The Smart power meter system based on ZigBee technology is successfully developed in the paper. The EM250 SOC chips are adopted to develop the wireless communication modules with ZigBee protocol. Parsing the AT command, encryption and such more basic function, the two different and independent program framework for the ESP and IHD(In-Home Display) have been worked out except finishing the data transmission. A smart wireless network based on ZigBee has been established. The home and outdoor testing have also been implemented too. The measured results show that a coordinator can support more than 500 nodes and communication distance reach more than 1000 meter outdoor and more than 50 meter from home to outdoor through the two walls.

Sign in / Sign up

Export Citation Format

Share Document