Design and Implementation of Wireless Node Based on Zigbee Protocol for Image Acquisition

2014 ◽  
Vol 519-520 ◽  
pp. 1220-1224 ◽  
Author(s):  
Hui Ling Zhou ◽  
Han Chen ◽  
Xiao Guang Zhou
Keyword(s):  
Power Dissipation ◽  
High Performance ◽  
Low Cost ◽  
Image Acquisition ◽  
Image Sensor ◽  
Transmission Range ◽  
Time Performance ◽  
Zigbee Protocol ◽  
Low Power Dissipation ◽  
Wireless Node

An implementation of wireless image acquisition node with low power dissipation, low cost, and high performance is proposed and testing results on transmission range and time are presented. The node is designed by using the latest high-performance microprocessor and CMOS image sensor and suits for situation where the demand for real-time performance is not strong.

The Research and Design of Portable Leaf Disease Spots Image Acquisition System

2011 ◽  
Vol 128-129 ◽  
pp. 1480-1483
Author(s):  
Kai Song ◽  
Zhe Wang ◽  
Feng Ju Shen
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Image Acquisition ◽  
Processing System ◽  
Image Features ◽  
Acquisition System ◽  
Ultra Low Power ◽  
Real Time Processing ◽  
Leaf Disease ◽  
Image Acquisition System

The crop leaf disease spots image recognition technology has a great significance in identifying diseases and in effective spraying of pesticides to liminate diseases. We researched and designed the portable leaf disease spots image acquisition system since current PC-based processing system is high cost and lack of flexibility and real-timing, This system uses a high-performance 32-bit DSP chip based DM642 as its main processor, and also uses ultra-low power consumption and ultra-small size video decoder chips, large-capacity memories and high-performance communicator interfaces. As a result of the reasonable design of hardware architecture, this system realized leaf disease spots image features collecting and processing ，video transmitting, and achieved strong real-time processing capability, easy operation, low cost, anti-interference ability and other characteristics. The system prototype works well, and meets the design requirements.

scholarly journals Iot Forest Environmental Factors Collection Platform Based On Zigbee

2014 ◽  
Vol 14 (5) ◽  
pp. 51-62 ◽  
Author(s):  
Zhang Yu ◽  
Liu Xugang ◽  
Geng Xue ◽  
Li Dan
Keyword(s):  
Environmental Factors ◽  
Power Dissipation ◽  
Smart Home ◽  
High Capacity ◽  
Environment Monitoring ◽  
Forest Environment ◽  
Zigbee Protocol ◽  
Low Power Dissipation ◽  
Networking Technologies ◽  
Monitoring Technologies

Abstract Nowadays the development of Internet of Things (IoT) technology has witnessed great changes in the world. As it has often been mentioned, IoT Environment Monitoring Technologies and IOT Smart Home Technologies have been gradually accepted by people and have good prospects for development. Now we can research a networking based intelligent platform to monitor our forest environmental factors in time with the new IoT technology based on ZIGBEE protocol. ZIGBEE based networking technologies has the advantages of low power dissipation, low data rate and high-capacity transportation, which makes it more suitable for the design of the node of forest environmental factors collection platform. So, we are going to discuss a kind of IoT forest environment factors collection platform based on ZIGBEE protocol.

Design of Low Power CMOS Comparator using 180nm Technology for ADC Application

2017 ◽  
Vol MCSP2017 (01) ◽  
pp. 11-13
Author(s):  
Truptimayee Behera ◽  
Ritisnigdha Das
Keyword(s):  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
High Performance ◽  
Input Voltage ◽  
Clock Frequency ◽  
Nmos Transistor ◽  
Body Effect ◽  
Low Power Dissipation ◽  
Low Power Cmos

In our design of CMOS comparator with high performance using GPDK 180nm technology we optimize these parameters. We analyse the transient response of the schematic design and the gain is calculated in AC analysis and also we measure the power dissipation. The circuit is built by using PMOS and NMOS transistor with a body effect. A plot of phase and gain also discussed in the paper. Finally a test schematic is built and transient analysis for an input voltage of 2V is measured using Cadence virtuoso. Simulation results are presented and it shows that this design can work under high speed clock frequency 200MHz. The design has low power dissipation.

Design of Personnel Position System of Mine Based on ZigBee Technology

2014 ◽  
Vol 556-562 ◽  
pp. 6145-6148
Author(s):  
Lei Gang Miao ◽  
Kui Zhang ◽  
Rong Ni
Keyword(s):  
Wireless Communication ◽  
Coal Mine ◽  
Power Dissipation ◽  
Communication Systems ◽  
Wireless Technology ◽  
Present Communication ◽  
Zigbee Technology ◽  
Zigbee Protocol ◽  
Low Power Dissipation ◽  
Mine Accident

China’s present communication systems in coal mine can not effectively transfer information. Hence, rescue efforts are hard to be carried out in case of coal mine accident. To deal with this problem, a method of mine wireless communication system with low-power dissipation based on Zigbee wireless technology is presented. The paper at first introduces the characteristics and structure of ZigBee protocol, then introduced wireless communication networking mode of ZigBee device in coal mine underground, and gave principle of personnel position of coal mine underground and its realizing process.

The Research of the Real-Time High-Resolution Image Acquisition Based on Embedded System

2014 ◽  
Vol 631-632 ◽  
pp. 508-511
Author(s):  
Xi Ye Feng ◽  
Xiu Qing Huang
Keyword(s):  
High Resolution ◽  
Embedded System ◽  
Real Time ◽  
Low Cost ◽  
Image Acquisition ◽  
Image Data ◽  
Image Sensor ◽  
High Definition ◽  
The Real ◽  
Embedded Linux System

This paper presents the design of a real-time high-definition image acquisition. The hardware platform combines Intel Xscale PXA270 processor, high-resolution camera and SAA7114H. The system is based on the embedded Linux system. Beetween the image sensor and the system memory,there is a quick capture interface.The interface receives the data from the image sensor,and converts the raw image data to a suitable format, and sends H.264 stream to the memory via the DMA channel. The result shows that the design can realize the real-time and high-definition image acquisition in a complicated environment. The advantage of this system is small volume, low power consumption and low cost. It can be widely used in agricultural and hydrological monitoring, intelligent transportation, security monitoring and intelligent home.

HIGH-SPEED ARCHITECTURES AND BUILDING BLOCKS FOR CLOCK AND DATA RECOVERY SYSTEMS

2005 ◽  
Vol 15 (03) ◽  
pp. 581-597 ◽  
Author(s):  
CICERO S. VAUCHER ◽  
JAN-PETER FRAMBACH ◽  
JOHAN D. van der TANG
Keyword(s):  
Power Dissipation ◽  
High Speed ◽  
High Performance ◽  
Tuning Range ◽  
Building Blocks ◽  
Clock And Data Recovery ◽  
Data Recovery ◽  
Low Power Dissipation ◽  
Basic Concepts ◽  
Multi Phase

This paper focuses on high performance architectures and building blocks for clock and data recovery (CDR) applications. After a review of basic concepts, a parallel CDR architecture for high operation speeds and low-power dissipation is introduced, followed by discussion of linear detectors for multiple octave operation CDR systems. A frequency acquisition architecture, based on standard PLL building blocks, is then presented. Finally, multi-phase and wide-tuning-range oscillators are discussed.

Controllable Synthesis of Pt Functionalized Black Phosphorus (BP) Nanocomposite for High Performance NOx Gas Sensor

2021 ◽  
Vol 21 (9) ◽  
pp. 4786-4791
Author(s):  
Ying Liang ◽  
Hongmei Bi
Keyword(s):  
High Performance ◽  
Bulk Material ◽  
Low Cost ◽  
Pt Nanoparticles ◽  
High Sensitivity ◽  
Black Phosphorus ◽  
Two Dimensional ◽  
Uniform Size ◽  
Short Period ◽  
Low Power Dissipation

Compared with bulk material-based sensors, functional sensors fabricated with nanomaterials have many advantages, such as high sensitivity, multifunctional integration, low power-dissipation, and low cost. Black phosphorus (BP) is a two-dimensional (2D) crystal material, which has a higher molecular adsorption energy, tunable direct band gap, high carrier mobility, ambipolar characteristics, and high current on/off ratio. In this paper, BP bulk was ground into powder, and then the powder was dispersed in dimethylformamide (DMF) to obtain two-dimensional BP nanosheets solution. Afterwards, the black phosphorus nanosheets and H2PtCl6 solution were mixed to obtain the Pt functionalized BP nanocomposite by one-step reduction method. Pt nanoparticles were dispersed on the surface of BP nanosheets with highly uniform size. The Pt functionalized BP nanocomposite exhibited a high response of 2.19 to 10 ppm NOx in a short period of 1.93 s at room temperature. The detection limit was as low as 30 ppb. The Pt functionalized BP nanocomposite will be useful for precise detection of NOx.

A Review of Recent Developments in Some Practical Aspects of Air-Cooled Electronic Packages

1998 ◽  
Vol 120 (4) ◽  
pp. 830-839 ◽  
Author(s):  
S. Sathe ◽  
B. Sammakia
Keyword(s):  
Heat Sink ◽  
Power Dissipation ◽  
High Performance ◽  
Low Cost ◽  
Total Power ◽  
Electronic Packages ◽  
Thermal Enhancement ◽  
Recent Developments ◽  
New Generation ◽  
Heat Sinking

The recent emphasis on low-cost high-end servers and desktop workstations has resulted in a renewed interest in the development of high-performance air-cooled systems. A new generation of advanced heat sink designs capable of dissipating up to 105 W/m2 have been proposed and developed. Better manufacturing tolerances, lower defects, and an improved understanding of card and enclosure effects have been attained and shown to be critical to achieving the desired thermal performance. Advanced internal thermal enhancements, encompassing high thermal conductivity adhesives and greases have also been implemented. This review article covers recent developments in heat sink designs and applications intended for high-end high-power dissipation systems. A review of recent studies of card effects in the thermal enhancement of electronic packages is also presented. In certain applications the card heat-sinking effect can play a major role in the thermal management of a package, accounting for more than 50 percent of the total power dissipation of the package.

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