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Description: 智能无线传感器网络综合了传感技术、嵌入式计算技术、现代网络技术、无线通信技术和分布式智能信息处理技术，将功能相同或不同的无线智能传感器构成网络化、智能化的传感器网络，大大提高了传感器的监测能力。基于智能无线传感器网络的实用监控系统采用中短距离、低功耗无线网络，射频传输成本低；可根据需要采用多种供电模式、节能效果好；可实现灵活的快速组网和自动配置，扩展性好；任意传感器之间可相互协调实现数据通信；能支持多种不同类型的传感器，适应性强。-smart wireless sensor networks of integrated sensor technology, embedded computing technology, modern network technology, Wireless communications technology and distributed intelligent information processing technology, will be the same or different functions of wireless smart sensor networks and intelligent sensor networks greatly increasing the sensor monitoring capabilities. Based on intelligent wireless sensor networks a practical control system uses short distance, low-power wireless network, RF transmission cost is low; may need to employ a variety of power supply mode, the effect of energy-saving; can be flexible, rapid and automatic network configuration, the expansion is good; arbitrary sensor coordination between data communication; will support a variety of different types of se
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Size: 21504 |
Author: wolfguy |
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Description: 无线传感器网络模糊功率控制源代码中的模糊控制模块
以及附有相应的图形显示-wireless sensor networks fuzzy power control of the source code control module and fuzzy with the corresponding graphics
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Size: 5120 |
Author: 石念 |
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Description: 本装置是一个以HT46R71D 为主芯片，配合传感器组成的汽车轮胎气压检测装
置，最终取高三位有效值于LCD 显示，有四种显示单位供切换（Psi、Bar、Kpa、
Kgf/cm2）。本装置仅为参考范例，使用时，为提高准确度，建议多量测些组数
据来构建Sensor Output Voltage - Discharge Time (V-T)表格，并作相应校准。-This device is a HT46R71D-based chips, with sensors detecting vehicle tire pressure devices, and ultimately take the high-three RMS in LCD display, there are four types of display units for switching (Psi, Bar, Kpa, Kgf/cm2). Only reference to an example of the device, when used to improve the accuracy of the proposed多量measured set of data to build more Sensor Output Voltage- Discharge Time (VT) forms, and the corresponding calibration.
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Size: 676864 |
Author: steven |
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Description: 本电路以89S51 单片机为中心、附加A44E 霍尔传感器测距，实现对出租车计价统计，采用AT24C02 实现在系统掉电的时候保存单价和系统时间等信息，输出采用8 段数码显示管。本电路设计的计价器不但能实现基本的计价，而且还能根据白天、黑夜、中途等待来调节单价，同时在不计价的时候还能作为时钟为司机同志提供方便。-The single-chip circuitry to 89S51 as the center, an additional Hall sensor A44E ranging, to realize Taximeter statistics, using AT24C02 realize when the system power-down unit prices and save information such as system time, the output using 8 digital display tube. The circuit design of the meter will not only realize the basic valuation, but also according to the daytime, night, halfway to wait to adjust the unit price, while not denominated as a time clock can also provide convenience for the drivers comrades.
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Size: 277504 |
Author: 江晋南 |
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Description: 利用ARM7(LPC2210)与CMOS感光芯片(OV7620)实现了一个紧凑型图像采集、处理系统；通过合理利用LPC2210数据总线的工作方式，有效地消除了0V7620对系统数据总线的干扰。SCCB控制，图像数据的采集、处理以及传输都由一片LPC2210完成，特别适合于对功耗、体积要求较严格的嵌入式应用-Using ARM7 (LPC2210) and the CMOS sensor chip (OV7620) to achieve a compact image acquisition, processing system through the rational use of data bus LPC2210 work, effectively eliminating the system data bus 0V7620 interference. SCCB control, image data collection, processing and transmission by a LPC2210 to complete, especially suitable for power, volume more stringent requirements of embedded applications
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Size: 187392 |
Author: 张颖 |
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Description: 《Ultra-Low Power Wireless Technologies for Sensor Networks》
电子书，Brian Otis and Jan Rabaey，很贵的一本书！- Ultra-Low Power Wireless Technologies for Sensor Networks e-book, Brian Otis and Jan Rabaey, expensive book!
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Size: 13457408 |
Author: 金颂扬 |
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Description: 关于无线传感器网络功率控制的一些文章，很有用的哦。-On wireless sensor network power control of a number of articles, very useful Oh.
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Size: 2253824 |
Author: 苏可 |
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Description: A MATLAB GUI platform for realizing the radiation pattern of narrowband beamformer with random array geometry. User can specify the array geometry, directions of incoming signals, noise power, and the type of beamformer. Useful for gaining insight about collaborative beamforming in sensor networks and random arrays. You need both randomarray.fig and randomarray.m to work. -A MATLAB GUI platform for realizing the radiation pattern of narrowband beamformer with random array geometry. User can specify the array geometry, directions of incoming signals, noise power, and the type of beamformer. Useful for gaining insight about collaborative beamforming in sensor networks and random arrays. You need both randomarray.fig and randomarray.m to work.
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Size: 8192 |
Author: zhouyu |
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Description: 环境监测无线传感器网络节点的设计 针对环境监测的要求,开发了一种兼容型的无线传感器网络节点系统。该系统以MSP430FG4618为核心,采用
CC2420 214G射频芯片,软件上移植了德州仪器( TI) ZigBee协议栈,并在应用层开发了通信程序。该系统可以组建成稳
定的网状网络,功耗低,数据传输稳定,可与TI支持的其他方案混合组网,使网络最优化-Environmental monitoring wireless sensor network node design requirements for environmental monitoring, development of a compatible wireless sensor network node system. The system is at the core MSP430FG4618 using radio frequency chip CC2420 214G, software on the transplantation of the Texas Instruments (TI) ZigBee protocol stack and application layer in the development of communications procedures. The system can be formed into a stable mesh network, low power consumption, data transmission stability, TI can support other programs混合组网, enable network optimization
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Size: 260096 |
Author: rou |
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Description: 基于T i n y O S 的无线传感器网络体系结构
无线传感器网络WSN(Wireless Sensor Network) 由部署在监测区域内大量廉价的传感器节点组成,通过
无线通信方式形成multi2hop 自组织的网络系统,其目的是协作地感知、采集和处理网络覆盖区域中感知
对象的信息,并发送给观察者。本文从分析无线传感器节点Mica 和其上运行的操作系统TinyOS 出发,
着重描述无线传感器网络节点应用程序体系结构和消息通信机制。
-T iny OS-based wireless sensor network architecture, wireless sensor networks WSN (Wireless Sensor Network) deployed in the region to monitor a large number of low-cost sensor nodes through wireless communications multi2hop formed self-organized network system with the aim of collaboration to Perception, collection and processing network coverage area perceptual object information, and send observers. This article from the analysis of wireless sensor nodes Mica and its running on TinyOS operating system, the focus on wireless sensor network nodes to describe the application architecture and message communication mechanism.
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Size: 346112 |
Author: ge |
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Description: Simulation framework for power aware Wireless Sensor and Actor Network nodes to model all layers of the communication system, the application, the power supply and energy management, the digital processing unit and the sensor-actuator interface.
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Size: 6114304 |
Author: guoguo |
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Description: The power management problem for wireless sensor networks has been studied intensively.
Various approaches for reducing the energy expenditure have been presented in literature
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Size: 4174848 |
Author: Nguyen Thanh Thuy |
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Description: Example: Distributed Wireless Control System，可用于无线传感器网络中-This example shows distributed control of a DC-servo using
communication over a wireless network. The example also shows how to
simulate power consumption and how to use the battery block. The model
contains two computer nodes located 20 m apart, each represented by a
TrueTime kernel block. A time-driven sensor/actuator node samples the
process periodically and sends the samples over the network to the
controller node. The control task in this node calculates the control
signal and sends the result back to the sensor/actuator node, where it
is actuated. The wireless communication link is at the same time
subject to a simple power control scheme. Power control tasks running
in both the sensor/actuator node and in the controller node
periodically send out ping messages to the other node to test the
channel transmission. If a reply is received, the channel is assumed
to be good and the transmission power is lowered. If on the other hand
no reply is received, then the transmi
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Size: 12288 |
Author: zhangxiangbin |
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Description: Android平台上Midware层源代码合集，包括GPS处理，WIFI，sensor，Power，Led等的管理。很全，很强大。-Midware layer on Android platform source code collection, including the GPS treatment, WIFI, sensor, Power, Led, such as management. Very wide, very powerful.
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Size: 31744 |
Author: 侯晓峰 |
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Description: 本系统的控制部分是以89C51为核心，采用集温度采集、A/D转化于一体数字温度传感器18B20作为温度处理部分。键盘控制接口采用键盘接口7279，通过其可以设定温度，设定PID算法的参数，并且可以设定当前时间，进行温度与时间显示的切换.采用数码管显示，可以实时显示实际温度。主电路是由光偶和晶闸管所组成的开关电路。控制电路通过PID算法，产生PWM波来控制主电路的通断，从而控制电炉的输出功率，达到温度控制的目的.-The system control part of the 89C51 as the core, the use of set temperature acquisition, A/D conversion in the integrated digital temperature sensor 18B20 treatment as part of the temperature. Keyboard control interface using the keyboard interface 7279, can be set through its temperature, set the parameters of PID algorithm, and can set the current time, temperature and time display switch. Using digital control, it can be real-time display the actual temperature. Main circuit is a dual optical and composed of thyristor switching circuits. Control circuit through the PID algorithm, generate PWM wave to control the main circuit of the on-off and thus control the output of electric power, to achieve the purpose of temperature control.the use of set temperature acquisition, A/D conversion in the integrated digital temperature sensor 18B20 treatment
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Size: 162816 |
Author: 朱平华 |
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Description: MATSNL is a package of MATLAB M-files for computing wireless sensor node
lifetime/power budget and solving optimal node architecture choice problems. It is intended
as an analysis and simulation tool for researchers and educators that are easy to use and
modify. MATSNL is designed to give the rough power/ lifetime predictions based on node
and application specifications while giving useful insight on platform design for the large
node lifetime by providing side-by-side comparison across various platforms.
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Size: 507904 |
Author: martn |
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Description: X-MAC, a low power MAC
protocol for wireless sensor networks (WSNs). Standard
MAC protocols developed for duty-cycled WSNs such as
BMAC, which is the default MAC protocol for TinyOS, employ
an extended preamble and preamble sampling.
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Size: 141312 |
Author: Shereen |
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Description: Piezo electric power sensor for human power harvesting
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Size: 377856 |
Author: Kumar sagar |
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Description: Sensors and Low Power Signal Processing
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Size: 4178048 |
Author: hxytyf@hotmail.com |
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Description: Energy is one of the most important items to determine the network lifetime due to low power energy nodes included in the network. Generally, data aggregation tree concept is used to find an energy efficient solution. However, even the best aggregation tree does not share the load of data packets to the transmitting nodes fairly while it is consuming the lowest possible energy of the network. Therefore, after some rounds, this problem causes to consume the whole energy of some heavily loaded nodes and hence results in with the death of the network. In this paper, by using the Genetic Algorithm (GA), we investigate the energy efficient data collecting spanning trees to find a suitable route which balances the data load throughout the network and thus balances the residual energy in the network in addition to consuming totally low power of the network. Using an algorithm which is able to balance the residual energy among the nodes can help the network to withstand more and consequently extend its own lifetime. In this work, we calculate all possible routes represented by the aggregation trees through the genetic algorithm. GA finds the optimum tree which is able to balance the data load and the energy in the network. Simulation results show that this balancing operation practically increases the network lifetime.
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Size: 342534 |
Author: atrakpc@yahoo.com |
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