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| 1 | 物联网概念辨析显示文摘由于物联网概念出现不久,其内涵在不断的发展、完善。目前对于物物瓦联的网络这一概念的准确定义业界一直未达成统一的意见,存在着以下几种相关概念:物联网、无线传感器网络( Wireless Sensor Network, WSN )以及泛在网( Ubiquitous Network ) . | 刘玮 王红梅 肖青 杨剑 | 2010 | 电信技术2010，，1： | 55 |
| 2 | 基于CC2531+CC2591的WSN节点通信模块设计显示文摘 | 黄玉立 童玲 田雨 | 2011 | 单片机与嵌入式系统应用2011，11，1： | 33 |
| 3 | 基于流形学习的人体动作识别显示文摘目的提出了一个基于流形学习的动作识别框架,用来识别深度图像序列中的人体行为。方法从Kinect设备获得的深度信息中评估出人体的关节点信息,并用相对关节点位置差作为人体特征表达。在训练阶段,利用LE(Lalpacian eigenmaps)流形学习对高维空间下的训练集进行降维,得到低维隐空间下的运动模型。在识别阶段,用最近邻差值方法将测试序列映射到低维流形空间中去,然后进行匹配计算。在匹配过程中,通过使用改进的Hausdorff距离对低维空间下测试序列和训练运动集的吻合度和相似度进行度量。结果用Kinect设备捕获的数据进行了实验,取得了良好的效果;同时也在MSR Action3D数据库上进行了测试,结果表明在训练样本较多情况下,本文方法识别效果优于以往方法。结论实验结果表明本文方法适用于基于深度图像序列的人体动作识别。 | 王鑫 沃波海 管秋 陈胜勇 | 2014 | 中国图象图形学报2014，19，6： | 30 |
| 4 | Implementation of Envelope Analysis on a Wireless Condition Monitoring System for Bearing Fault Diagnosis显示文摘Envelope analysis is an effective method for characterizing impulsive vibrations in wired condition monitoring(CM)systems. This paper depicts the implementation of envelope analysis on a wireless sensor node for obtaining a more convenient and reliable CM system. To maintain CM performances under the constraints of resources available in the cost effective Zigbee based wireless sensor network(WSN), a low cost cortex-M4 F microcontroller is employed as the core processor to implement the envelope analysis algorithm on the sensor node. The on-chip 12 bit analog-to-digital converter(ADC) working at 10 k Hz sampling rate is adopted to acquire vibration signals measured by a wide frequency band piezoelectric accelerometer. The data processing flow inside the processor is optimized to satisfy the large memory usage in implementing fast Fourier transform(FFT) and Hilbert transform(HT). Thus, the envelope spectrum can be computed from a data frame of 2048 points to achieve a frequency resolution acceptable for identifying the characteristic frequencies of different bearing faults. Experimental evaluation results show that the embedded envelope analysis algorithm can successfully diagnose the simulated bearing faults and the data transmission throughput can be reduced by at least 95% per frame compared with that of the raw data, allowing a large number of sensor nodes to be deployed in the network for real time monitoring. | Guo-Jin Feng James Gu Dong Zhen Mustafa Aliwan Feng-Shou Gu Andrew D.Ball | 2015 | International Journal of Automation and computing2015，12，1： | 28 |
| 5 | Comparison of Energy Harvesting Systems for Wireless Sensor Networks显示文摘Wireless sensor networks (WSNs) offer an attractive solution to many environmental, security, and process monitoring problems. However, one barrier to their fuller adoption is the need to supply electrical power over extended periods of time without the need for dedicated wiring. Energy harvesting provides a potential solution to this problem in many applications. This paper reviews the characteristics and energy requirements of typical sensor network nodes, assesses a range of potential ambient energy sources, and outlines the characteristics of a wide range of energy conversion devices. It then proposes a method to compare these diverse sources and conversion mechanisms in terms of their normalised power density. | James M.Gilbert Farooq Balouchi | 2008 | International Journal of Automation and computing2008，5，4： | 25 |
| 6 | 基于ZigBee无线传感器网络的农业环境监测系统研究与设计显示文摘针对目前农业环境在线监测的需要,提出了一种基于ZigBee无线传感器网络的农业环境监测系统设计方案,该监测系统由无线监测网络和远程监控中心组成,可对影响作物生长的温度、湿度、光照等环境变量进行实时监测。介绍了系统的总体架构,设计开发了无线传感器网络节点、基站以及软件流程。由于采用了无线传输方式,该系统解决了有线通信方式存在的难以扩展、难以升级等问题,具有低功耗、低成本、扩展灵活等优点,其应用前景非常广阔。 | 蔡镔 毕庆生 李福超 王栋 杨英 袁超 | 2010 | 江西农业学报2010，22，11： | 24 |
| 7 | 基于UWB的无线传感器网络中的两步TOA估计法显示文摘为了设计一种以较小运算量获得较高测距精度的TOA(time of arrival)估计算法以适合节点运算能力有限的UWB(ultra wideband)无线传感器网络,提出了一种结合能量检测与匹配滤波的两步TOA估计方法.分析了该方法的工作原理,指出了第1步中DP(direct path)块检测成功率及第2步中匹配滤波门限因子设置的重要性.通过仿真对影响DP块检测成功率的两个因素,即DP块检测算法的选用和能量积分周期的设置进行了讨论.提出了依据能量采样序列中DP块与最小块比值DMR(DP to minimum energy sample ratio)动态设置匹配滤波门限因子的思想,并为其建立了数学模型.仿真结果表明,两步TOA估计方法在运算量比单一的基于匹配滤波的相干算法小很多的情况下,获得了比单一的基于能量检测的非相干方法更好的TOA估计性能,从而更适合应用于有低复杂度、低能耗设计需求的传感器节点中. | 吴绍华 张乃通 | 2007 | 软件学报2007，18，5： | 24 |
| 8 | Analysis of sensitivity and errors in Maglev vibration test system显示文摘In order to improve work performance of M aglev vibration test systems,the relationships of operating parameters between different components and system were researched. The working principle of photoelectric displacement sensor was analyzed. The relationship between displacement of transducer and the infrared light area received by sensor was given. The method of expanding the dynamic range of vibrator was proposed,which makes dynamic range of Maglev vibrator doubled. By increasing the amplification of the amplifier,the sensitive photoelectric displacement sensor can be maintained. Two modes of operation of the controller were analyzed. Bilateral work of vibration test system designed can further improve the stability of the system.An object vibration was measured by Maglev vibration test system designed when different vibration exciter frequencies were loaded. Experiments showthat the output frequency measured by Maglev vibration test system and loaded are the same. Finally,the errors of test system were analyzed. These errors of vibration test system designed can meet the requirements of application. The results laid the foundation for the practical application of magnetic levitation vibration test system. | JIANG Dong LIU Xukun WANG Deyu YANG Jiaxiang | 2016 | Instrumentation2016，3，1： | 24 |
| 9 | 无线传感器网络在农业生产中的应用研究显示文摘无线传感器网络已经成为科学研究领域最前沿的课题之一,因其巨大的应用前景而备受关注。该文综述了无线传感器网络的体系结构、节点构成和特点,介绍了其在农业领域中的应用及最新研究进展。 | 蔡镔 袁超 顿文涛 马斌强 李聪 李辉 | 2010 | 江西农业学报2010，22，9： | 23 |
| 10 | Development and prospect of unmanned aerial vehicle technologies for agricultural production management显示文摘Unmanned aerial vehicles have been developed and applied to support agricultural production management.Compared with piloted aircraft,an Unmanned Aerial Vehicle(UAV)can focus on small crop fields at lower flight altitudes than regular aircraft to perform site-specific farm management with higher precision.They can also“fill in the gap”in locations where fixed winged or rotary winged aircraft are not readily available.In agriculture,UAVs have primarily been developed and used for remote sensing and application of crop production and protection materials.Application of fertilizers and chemicals is frequently needed at specific times and locations for site-specific management.Routine monitoring of crop plant health is often required at very high resolution for accurate site-specific management as well.This paper presents an overview of research involving the development of UAV technology for agricultural production management.Technologies,systems and methods are examined and studied.The limitations of current UAVs for agricultural production management are discussed,as well as future needs and suggestions for development and application of the UAV technologies in agricultural production management. | Yanbo Huang Steven J.Thomson W.Clint Hoffmann Yubin Lan Bradley K.Fritz | 2013 | International Journal of Agricultural and Biological Engineering2013，6，3： | 22 |
| 11 | DESIGN OF 6-AXIS FORCE/TORQUE SENSOR BASED ON STEWART PLATFORM RELATED TO ISOTROPY显示文摘DESIGNOF6AXISFORCE/TORQUESENSORBASEDONSTEWARTPLATFORMRELATEDTOISOTROPYWangHongruiGaoFengHuangZhenMechanicalEngineeringInstit... | Wang, Hongrui Gao, Feng Huang, Zhen | 1998 | Chinese Journal of Mechanical Engineering1998，11，3： | 19 |
| 12 | 机械振动无线传感器网络节点高精度数据采集方法显示文摘为满足通用机械振动监测中高采样率、采集精度的需求,提出一种基于IEPE加速度传感器的无线传感器网络节点高精度数据采集方法。采用双核心处理器构架,降低网络维护与采集控制的耦合性,独立高精度时钟控制采集时序,提高数据采集频率精度。设计低噪声DC-DC电源转换方案,在充分考虑转换效率的前提下抑制电源噪声为30μVRMS;设计能自抑制电源噪声的恒流源激励,减小IEPE加速度传感器的信号噪声;设计通带平稳的三阶低通滤波器,有效避免频率混叠,提高数据采集幅值精度。实验结果表明:节点采集信号噪声仅40.7μVRMS,滤波通带范围内平均幅值误差仅0.37%;与有线采集系统NI9234数据采集对比分析,频率误差低于最小频率分辨率,幅值误差最大仅2.99%,验证了该无线传感器网络节点高精度数据采集方法的有效性。 | 曾贵伟 汤宝平 邓蕾 肖鑫 | 2016 | 振动与冲击2016，35，16： | 19 |
| 13 | A Review on Graphene-Based Gas/Vapor Sensors with Unique Properties and Potential Applications显示文摘Graphene-based gas/vapor sensors have attracted much attention in recent years due to their variety of structures, unique sensing performances, room-temperature working conditions, and tremendous application prospects, etc.Herein, we summarize recent advantages in graphene preparation, sensor construction, and sensing properties of various graphene-based gas/vapor sensors, such as NH_3, NO_2, H_2, CO, SO_2, H_2S, as well as vapor of volatile organic compounds.The detection mechanisms pertaining to various gases are also discussed. In conclusion part, some existing problems which may hinder the sensor applications are presented. Several possible methods to solve these problems are proposed, for example, conceived solutions, hybrid nanostructures, multiple sensor arrays, and new recognition algorithm. | Tao Wang Da Huang Zhi Yang Shusheng Xu Guili He Xiaolin Li Nantao Hu Guilin Yin Dannong He Liying Zhang | 2016 | Nano-Micro Letters2016，8，2： | 18 |
| 14 | On Improved DV-Hop Localization Algorithm for Accurate Node Localization in Wireless Sensor Networks显示文摘Node Localization is a fundamental issue for many critical applications in Wireless sensor networks(WSNs). Traditional DV-Hop localization algorithm and corresponding improved ones still cannot provide sufficient localization accuracy in such WSNs. To ensure accurate localization, this paper proposes an improved Distancevector-Hop(DV-Hop) localization algorithm. Under such an algorithm, we determine a corrected average hopdistance of beacon nodes by employing the differences between actual and estimated distance among beacon nodes in WSNs. We propose a probability information based selective strategy for the selection of beacon nodes.Based on these selected beacon nodes, we adopt a two dimensional hyperbolic function to predict the locations of unknown nodes. Simulation results are provided to illustrate the localization accuracy of our algorithm compared with traditional DV-Hop algorithm and its two improved algorithms in WSNs. | SHEN Shikai YANG Bin QIAN Kaiguo SHE Yumei WANG Wu | 2019 | Chinese Journal of Electronics2019，28，3： | 15 |
| 15 | 磁悬浮刚性转子系统振动机理分析与动力学建模显示文摘磁悬浮惯性执行机构采用磁轴承支承,可通过主动控制实现极微振动,但磁悬浮惯性执行机构仍存在频谱分量丰富的振动.首先在转子动静不平衡和Sensor Runout振动机理分析的基础上,重点分析了Magnet Runout产生振动机理;然后,建立包含多振动源的系统动力学建模,并将整个动力学模型分解为平动和转动子系统,分析表明转子动静不平衡、Sensor Runout和Magnet Runout是通过不同的途径产生振动,不仅产生同频振动还包含倍频振动;最后,提出磁悬浮刚性转子系统主动振动控制的要求,为以后的主动振动控制研究奠定基础. | 房建成 张会娟 刘虎 | 2014 | 控制理论与应用2014，31，12： | 14 |
| 16 | One-Pot Synthesis of Highly Luminescent CdTe Quantum Dots by Microwave Irradiation Reduction and Their Hg^(2+)-Sensitive Properties显示文摘A facile one-pot microwave irradiation reduction route has been developed for the synthesis of highly luminescent CdTe quantum dots using Na_(2)TeO_(3) as the Te source in an aqueous environment.The synthesis parameters of this simple and rapid approach,including the reaction temperature and time,the pH of the reaction solution and the molar ratio of the 3-mercaptopropionic acid(MPA)stabilizer to Cd^(2+),have considerable influence on the particle size and photoluminescence quantum yield of the CdTe quantum dots.The photoluminescence quantum yield of CdTe quantum dots prepared using relatively short reaction times(1040 min)reached 40%60%(emission peaks at 550640 nm).Furthermore,the resulting products could be used as fl uorescent probes to detect Hg^(2+)ions in aqueous media.The response was linearly proportional to the concentration of Hg^(2+)ion in the range 8.0×10^(9)mol/L to 2.0×10^(6)mol/L with a detection limit of 2.7×10^(9)mol/L. | Junling Duan Lianxiang Song Jinhua Zhan | 2009 | Nano Research2009，2，1： | 14 |
| 17 | Development of real-time laser-scanning system to detect tree canopy characteristics for variable-rate pesticide application显示文摘Improving pesticide application efficiency is increasingly important in orchard spraying.In this study,a laser-scanning system was designed to acquire gridding volumes of a tree to quantify the geometry characteristics of the tree canopy in real-time.A laser-scanning sensor mounted on a linear guide was utilized to measure the structure of a target tree canopy.A computer was used to receive measurement data from the laser scanner and obtain the movement distance of the laser-scanning sensor from a controller.An algorithm written with VC#program was designed to calculate gridding volumes of trees by recognizing valid measurement data from the laser scanner.Laboratory evaluations were conducted on three kinds of regular objects,and the maximum relative errors of section volumes of the cuboid,triangular prism and cylinder objects were 3.3%,7.9%and 9.4%,respectively,which illustrated that the algorithm could calculate the section volumes in different parts of the objects with high accuracy.A conifer tree and an apple tree were chosen to verify detecting accuracy of the laser-scanning system at variable speeds and grid sizes.The variation coefficients of total volumes for each kind of the tree were 0.078 and 0.041,respectively,which indicated that the laser-scanning system could be applied to provide the gridding volumes of different canopy densities in real-time with good reliability for guiding a variable-rate sprayer. | Cai Jichen Wang Xiu Song Jian Wang Songlin Yang Shuo Zhao Chunjiang | 2017 | International Journal of Agricultural and Biological Engineering2017，10，6： | 14 |
| 18 | Development of a welding system for 3D steel rapid prototyping process显示文摘Metal device rapid prototyping with welding is one of the research interests at present. A controlled inertial droplet transfer MAG welding (CIDTMAGW) process was developed for the 3D steel device rapid prototyping with metal deposition. In this process, by using a special designed wire feeder, a controlled inertia is imposed on the droplet formed on the wire tip and combines with the arc force to make it detached. Thus, according to the requirements of rapid prototyping, the arc heat and the droplet detaching force can be separately controlled to attain a stable and satisfactory metal deposition process. A CIDTMAGW system and a testing manipulator for the 3D steel device rapid prototyping are presented. The required software is completed as well. The experiments proved that the geometric formation of the rapid prototyping device with welding deposition is well agreed the data of the device CAD modeling. The surface of the deposited device is comparatively smooth. | 杨世彦 韩明武 王其隆 | 2001 | China Welding2001，10，1： | 14 |
| 19 | 无线传感器网络中PEGASIS协议的研究与改进显示文摘针对PEGASIS协议中通信时延长、节点与节点之间存在长链、网络维护代价大的缺点,该论文在分析和仿真PEGASIS协议的基础上提出一种改进协议PEGASIS-I(PEGASIS-Improved)。该协议将监测区域看成是以基站为中心的圆形区域,基站生成参数θ并将圆形区域分成2π/θ个子区域,子区域内节点与节点形成通信路由树,数据先从树叶传输至树根,再由树根发送至基站。MATLAB仿真表明:与PEGASIS协议相比PEGASIS-I协议有效降低了数据传输延迟58%、避免了长链、延长了网络生存时间198%。 | 刘伟强 蒋华 王鑫 | 2013 | 传感技术学报2013，26，12： | 13 |
| 20 | Spiral Steel Wire Based Fiber-Shaped Stretchable and Tailorable Triboelectric Nanogenerator for Wearable Power Source and Active Gesture Sensor显示文摘Continuous deforming always leads to the performance degradation of a flexible triboelectric nanogenerator due to the Young’s modulus mismatch of different functional layers.In this work,we fabricated a fiber-shaped stretchable and tailorable triboelectric nanogenerator(FST-TENG)based on the geometric construction of a steel wire as electrode and ingenious selection of silicone rubber as triboelectric layer.Owing to the great robustness and continuous conductivity,the FST-TENGs demonstrate high stability,stretchability,and even tailorability.For a single device with ~6 cm in length and ~3 mm in diameter,the open-circuit voltage of ~59.7 V,transferred charge of ~23.7 nC,short-circuit current of ~2.67 μA and average power of ~2.13 μW can be obtained at 2.5 Hz.By knitting several FST-TENGs to be a fabric or a bracelet,it enables to harvest human motion energy and then to drive a wearable electronic device.Finally,it can also be woven on dorsum of glove to monitor the movements of gesture,which can recognize every single finger,different bending angle,and numbers of bent finger by analyzing voltage signals. | Lingjie Xie Xiaoping Chen Zhen Wen Yanqin Yang Jihong Shi Chen Chen Mingfa Peng Yina Liu Xuhui Sun | 2019 | Nano-Micro Letters2019，11，3： | 13 |
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