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测控技术

测控技术

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Measurement & Control Technology
本期刊创刊于1982年，国内外公开发行。重点介绍各种类型传感器、智能化仪器仪表、现场总线技术、计算机数据采集与处理、楼宇自动化技术、多媒体在工业自动化领域的应用、人工智能技术、模糊控制技术、通信技术、仿真与虚拟现实、机电一体化以及工控组态软件等技术开发应用、科研成果推广、使用经验介绍等方面的实用技术性文章以及测控技术知识讲座等。《测控技术》杂志的网站 www.mct.com.cn 于2005年9月开通，登录该网站，作者可以投稿和查稿，读者可以浏览测控行业技术及产品的发展动态，可以在线订阅杂志和征订广告，也可以点击网站的“读者信箱”发布您的要求，在那里我们会及时给您答复。
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  • 发文量：8017
  • 被引量：2235
  • H指数：3
  • 开始收录时间：1989(1)
  • CNKI综合因子：0.776
  • 维普期刊影响因子： 0.75
  • 万方期刊影响因子：0.64
  • 创刊时间：1982
  • 国内刊号/CN：11-1764/TB
    国际刊号/ISSN：1000-8829
  • 发行周期：月刊
    邮发代号：82-533
  • 主管单位：中国航空工业第一集团公司
    主办单位：中国航空工业集团公司北京长城航空测控技术研究所
测控技术-联系信息
  • 主编：王彤
  • 电话：010-65667497 65665345 65665486
  • 邮箱：cmct634@163.com
  • 地址：北京市亦庄经海二路29号院9号楼
  • 邮编：101111
测控技术-获奖情况
  • • 全国优秀科技期刊二等奖
  • • 北京市全优期刊奖
  • • 国防科工委优秀科技期刊二等奖
  • • 中国航空工业科技期刊一等奖
  • • 在首次中国期刊方阵评选中，《测控技术》进入中国期刊方阵双百科技期刊方阵
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测控技术 >2023年第10期

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  • 摘要：为了得到海上风电塔在“苏迪罗”台风直接作用下的振动响应特性,通过在风电塔上安装低频振动传感器和分量加速度计,对两座5 MW的海上风电塔样机开展振动监测.基于实测数据,对比分析风电塔固有频率、阻尼比等频域特性在台风前后以及台风过程中的变化情况,同时分析了振动幅度、加速度有效值、振动烈度等时域特性随台风的变化情况和台风过程中偏航冲击力的异常情况.监测结果表明:风机塔的振动模态参数对其法兰盘螺栓松动不敏感;法兰盘及其紧固螺栓在台风作用下出现螺栓松动后会表现出明显的局部颤振现象;台风过程中偏航冲击振动更加频繁,而且振动加速度大、持续时间长,对风电塔安全运行威胁较大.研究成果可为风机塔的抗风设计、运营安全监测提供参考.%To get the vibration response under the action of "Soudelor" typhoon,two 5 MW offshore wind towers are monitored by installing low frequency vibration sensors and accelerometers.Based on the statistics,the vibration response under the action of typhoon is analyzed.Also vibration amplitude,acceleration rms,and vibration intensity are analyzed under the changes of typhoon.On the basis of the vibration characteristic analysis,it is found that the first three natural frequency,damping ratio and mode of the two wind tower only change a little.After inspection,it is caused by loose bolt.The monitoring results show that the vibration mode parameters of the wind tower are not sensitive to the looseness of the flange bolts.The obvious local flutter phenomenon of flange and fastening bolt will be shown when the bolt looses after the action of the typhoon.During the typhoon,the impact vibration happens more frequently and lasts long,which increases the safety threat to the wind tower.This research can provide the reference for wind resistance and operation safety monitoring of the wind tower.
  • 摘要：针对分数阶PIλDμ控制器求解公式复杂、计算耗时和占用资源量大等问题,提出一种改进的计算分数阶PIλDμ控制器实现方法.首先将PIλDμ控制器的传递函数离散化,以矩阵相乘的形式表示,然后采用有限状态机和查找表相结合的方式,实现传递函数系数矩阵的计算.根据分数阶PIλDμ控制器硬件架构图编写代码在FPGA中实现,并用ModelSim仿真平台仿真的结果与Matlab计算的结果对比,并应用该方法试验控制电机.结果表明,采用该方法能够实现简化计算公式、缩短计算时间和节约资源,且相对误差小于0.3％.实际测试结果表明该方法可有效、快速地实现对电机速度的控制.%A new method to calculate the transfer function of the fractional order PIλDμ controller is proposed to solve the problems of complex fractional order PIλDμ controller,such as complex formula,time consuming and resource consumption.Firstly,the transfer function of PIλDμ controller is transformed into the form of matrix multiplication,then the transfer matrix of the transformed function is solved by using the lookup table(LUT) and finite state machine(FSM).According to the fractional order PIλDμ controller hardware architecture diagram,the code implemented in the FPGA is writen.The results of ModelSim simulation are compared with those of Matlab calculation,and the method is used to control the motor.Simulation results show that the method can simplify the calculation formula,shorten the computing time and save the resources,the relative error is less than 0.3 ％.The actual test results show that the method is effective and fast to control the motor speed.
  • 摘要：针对国内传统旋转式集成电路分拣机下压机构在运行测试时,集成电路与测试簧片不能保持稳定接触力的问题,采用直接转矩控制对下压机构进行控制.设计了基于电压空间矢量调制策略的永磁同步电动机直接转矩控制方案,用PI调节器以及电压空间矢量策略代替传统直接转矩控制系统中的滞环控制器和开关表.通过仿真验证表明,相比于传统的直接转矩控制,采用空间矢量调制策略的直接转矩控制,磁链波形得到改善,同时减小了脉动,使系统具有良好的动、静态性能,且集成电路芯片与测试簧片接触力满足测试要求.%In order to eliminate the phenomenon that the IC and reed can not maintain the stable contact force when the press agency of conventional turret test handler is operating at high speed,the direct torque control is adopted to control the press agency.A novel direct torque control based on the space vector modulation(SVM) strategy for permanent magnet synchronous motor(PMSM) was proposed.The proportional plus integral control and SVM were used to replace hysteresis controller and switching table in conventional direct torque control (DTC) system.Simulation results show that compared with traditional DTC,the torque ripple is greatly reduced,the static and dynamic performances of the system and the waveform of flux are also improved when using the DTC-SVM scheme.The contact force between the IC and the reed meets the test requirements.
  • 摘要：为满足飞机多种武器外挂装置各种电气性能测试的需要,基于数字万用表(34461A)、电子负载(IT8511+)、程控中频电源(SDS1303 K)、多路直流电源模块(4NIC-XQ600T)、适配器箱、研华工控机以及自制ISA总线板卡,搭建综合试验台硬件平台,基于VC ++6.0开发综合测试软件,并对试验台各种电气性能进行实际测试,测试结果表明其有效性.所研制的综合试验台可满足该系列多种武器外挂装置各种电气性能检测的需求,能够为该系列飞机武器外挂装置的修理提供技术支撑.%In order to test the electrical performance of equipments for loading weapons,a comprehensive testbed hardware platform was built,which was composed of digital multimeter(34461A),electronic load(IT8511 +),programmable IF power supply(SDS1303K),multi-channel DC power supply module(4NIC-XQ600T),adapter box,Advantech IPC and self-made ISA bus board.The electrical performance test software was developed based on VC + + 6.0,and applied to the test-bed.The test results verify its effectiveness.The developed test-bed can meet the needs of various electrical performance tests of a variety of equipments for loading weapons,and provide technical support for repairing this type of aircraft.
  • 摘要：A two-position two-port and normal-closed type direct-acting solenoid valve was designed according to the functional requirements of hemo dialysis machine,which used bellows sealing method to overcome the leakage problem.The structure size of the valve was calculated based on the target parameters which including 24 V working voltage,0.5 mm initial air gap,10 N attractive force and 65 ℃ allowable temperature-rise.The selenoid valve was modeled by Ansoft Maxwell,and the change of the valve attractive force under difference air gap and coil current was analyzed by parametric simulation.The switch response of the valve under different supply voltage conditions was tested by experiment.The results show that attraction force of the valve is about 10 N when the gas and coil current are 0.5 mm and 120 mA respectively.With supply voltage of 24 V,the onoff time of the valve approximates to 42 ms,which meets the working period of valve in hemodialysis machine.%根据血液透析机的功能要求设计了一种二位二通常闭型直动式电磁阀,该阀采用波纹管密封方式克服透析机中电磁阀易漏液的问题.以额定工作电压24 V、初始气隙0.5 mm、吸力10 N及线圈允许温升65℃为目标参数计算得到电磁阀的主要结构尺寸.采用Ansoft Maxwell仿真软件对电磁阀进行建模,利用参数化仿真分析电磁阀在不同气隙及电流条件下吸力的变化情况.通过实验测试不同供电电压条件下阀的开关响应.仿真及测试结果表明:气隙为0.5 mm和线圈电流为120 mA时电磁阀吸力约为10 N;在24 V电压作用下,电磁阀启闭时间约42 ms,满足血液透析机电磁阀的工作频率要求.
  • 摘要：为了满足部队对舰载综合数据链通信检测实际需求,研究了舰艇作战系统网络与数据链通信及协议、舰艇网络数据发送、SharpPCap数据接收等关键技术,设计实现了舰载综合数据链便携式检测系统,为舰艇综合数据链通信数据、无线信道状态检测提供了一个便捷平台,为部队模拟训练、数据链检验验收工作的顺利实施和部队熟练使用、维护数据链提供了强有力的保障.%In order to meet the actual requirements of the detection for multipurpose ship-borne data link,the key technologies about network of warship combat system,data link communication,message exchange protocols,warship network data transmission and SharpPCap data reception are studied.A portable detection system for multipurpose ship-borne data link is designed and implemented,which provides a convenient platform for multipurpose data link communication data and wireless channel state detections.Meanwhile,it provides a powerful guarantee for the army simulation training,the successful implementation of the data link inspection and acceptance,and the skilled use of army and maintenance of the data link.
  • 摘要：In order to solve the interference problems of target range gate pull off (RGPO) faced by the monopulse tracking radar under the sea complex electronic countermeasure environment,and to determine the existence of RGPO jamming and precisely locate its time and then to take effective anti-jamming measures,effective detection of interference is required.Based on the analysis of RGPO jamming and the theory of wavelet detection,combined with the monopulse radar tracking distance function established by the sea targets,Daubechies wavelet (db) is used to detect the singularity of RGPO jamming.Simulation results show that the db wavelet detection method can accurately detect the interference,also on the time orientation,which can be completely applied to the detection and analysis of RGPO jamming at maritime targets.%针对海面复杂电子对抗环境下单脉冲跟踪雷达所面临的目标距离波门拖引(RGPO)干扰问题,为确定RGPO干扰的存在并对其进行精确时间定位进而采取有效抗干扰措施,需对干扰开展有效的检测.在分析了RGPO干扰和小波检测理论的基础上,结合海上目标所建立的单脉冲雷达跟踪距离函数,利用Daubechies (db)小波进行了RGPO干扰的奇异性检测.仿真结果分析表明,db小波检测的方法可以准确检测出干扰的存在,还能对其进行时间定位,完全可以应用于海上目标RGPO干扰的检测与分析.
  • 摘要：针对光伏发电的不确定性、间歇性给电力系统并网运行带来的安全问题,提出了一种基于模块化回声状态网络模型对发电量进行预测.首先利用模块化神经网络按季节建立预测子模型,再将子模型按相同日类型进行数据划分后,与平均气温一同作为样本,利用回声状态网络对子模型进行训练和发电量预测,最后集成输出结果.结果表明:此预测模型在日类型相同时预测误差较小,而在日类型不同时预测误差较大,但与ESN和BP预测模型相比均具有更高的预测精度和更快的预测速度.%In order to solve the security problems of the power system interconnection caused by uncertainty and intermittent of photovoltaic power generation,a model based on modular echo state network is proposed to forecast power generation.Firstly,the forecast sub-model was established according to the seasons by using modularized neural networks.Then,the sub-models were divided based on similar days from history data of photovoltaic power generation and together with the average temperature as samples to train the sub-model and forecast the power generation by the echo state network.Finally,the result was integrated output.The results show that this forecasting model has a small forecasting error when the day type is the same,while the prediction error is larger when the day type is different.However,compared with the ESN and BP prediction models,the forecasting model has higher forecasting precision and faster forecasting speed.
  • 摘要：In order to improve the operation reliability of permanent magnet synchronous motor(PMSM) control system in injection molding machine and optimize the dynamic performance of PMSM speed control system,a nonsingular fast terminal sliding mode control(SMC) for speed-sensorless PMSM based on model predictive control was proposed.The model predictive current control was used as the current inner loop to replace the traditional PI regulator,which could restrain the current ripple effectively and improve the dynamic tracking performance of the current.According to the design principle of non-singular terminal sliding mode,the outer loop speed controller was constructed to generate the desired q-axis current and improve the stability of the system.The speed-sensorless is designed to identify the running speed of the motor online,which can accurately estimate the rotating speed and rotor position.The simulation and experimental results show that compared with the traditional PI regulator,the control strategy has high realiablity and rapidity.%为了提高注塑机中永磁同步电机控制系统的运行可靠性,优化永磁同步电机的调速系统动态性能,提出了一种基于模型预测电流控制的无速度传感器永磁同步电机非奇异快速终端滑模控制策略.以模型预测电流控制作为电流控制内环,取代传统的PI调节器,能够有效地抑制电流纹波,提高电流的动态跟踪性能.根据非奇异终端滑模的设计原理,构造外环速度控制器,从而生成期望的q轴电流,提高了系统的稳定性.设计无速度传感器对电机运行转速进行在线辨识,实现对转速和转子位置准确地估计.并与传统的PI调节器进行对比,仿真与实验结果表明该控制策略具有较高的可靠性和快速性.
  • 摘要：针对现有电能质量评估方法存在的不足,提出了一种新的粒子群优化算法和支持向量机理论相结合的智能电能质量综合评估方法.根据电能质量国家标准,确定了电能质量评估指标,并针对目前电能质量等级过于模糊的缺点,提出了区间化电能质量的细化措施.利用惯性权重自适应调节方法对粒子群算法进行了改进,在此基础上建立了基于粒子群优化支持向量机的电能质量综合评估模型.仿真实例的评估结果表明,所建立的综合评估模型是合理有效的,评估结论与其他评估方法相比更为合理可信.%To overcome the shortcomings of the existing power quality assessment methods,a new intelligent power quality comprehensive evaluation method based on particle swarm optimization(PSO) algorithm and support vector machine (SVM) theory was proposed.According to the national standards of power quality,the power quality evaluation index was determined,and the refinement measures of interval power quality were put forward.The PSO was improved by the inertia weight adaptive adjustment method,then a power pulity comprenensive evaluation model based on PSO-SVM was established.The evaluation results of simulation examples show that the comprehensive evaluation model is reasonable and effective,and the evaluation conclusion is more reasonable and credible than other evaluation methods.
  • 摘要：In order to study the discharge mechanism of microcavity dielectric barrier discharge (MDBD),an experimental platform based on the micro electrode device is developed.Based on the analysis of MDBD micro discharge process,an equivalent circuit based on voltage controlled current source (VCCS) was proposed to simulate the dynamic changes of MDBD microdischarge.The dynamic simulation model was established by Matlab and the discharge characteristics of MDBD were simulated.The voltage and current waveforms and Lissajous figures of MDBD discharge were obtained.At the same time,the discharge characteristics of MDBD were experimentally studied,and the simulation results were compared with the experimental results to verify the accuracy of MDBD dynamic simulation model.Then,the average discharge power and the amount of charge transferred by the discharge channel at different voltage amplitudes were calculated and analyzed by using the simulation model.The results show that the simulation results are consistent with the experimental results.%为了深入研究微腔结构介质阻挡放电(MDBD)的放电机理,搭建了基于介质板表面网格微结构电极装置的实验平台.在分析MDBD微放电过程的基础上,提出了基于电压控制电流源(VCCS)的等效电路来模拟MDBD微放电气隙的动态变化.利用Matlab建立动态仿真模型,并对MDBD的放电特性进行仿真,得到了MDBD放电时的电压电流波形和Lissajous图形.同时,对MDBD的放电特性进行实验研究,并将仿真与实验结果进行对比,验证了MDBD动态仿真模型的准确性.进而利用仿真模型分析计算了不同电压幅值下平均放电功率和放电通道传输电荷量,结果表明,通过仿真计算和实验测量得到的结果及其变化规律是一致的.
  • 摘要：机载软件开发面临复杂性、安全性和成本等方面的巨大挑战.针对某航空发动机数控系统的研制,结合FADEC软件的开发特点和目标,探索SCADE基于模型开发在FADEC软件开发中的应用.探索了两种不同的SCADE基于模型开发解决方案,基于这两种方案分别完成两个FADEC软件配置项的应用软件开发.通过模型测试、模型覆盖率分析和软件硬件集成测试验证了开发结果的正确性.提出了联合SCADE和Simulink的基于模型开发流程并明确其注意事项.分析SCADE的两种基于模型开发解决方案的适用范围以及方案选择时的考虑因素,总结分析了SCADE用于机载软件开发的优势和不足.%The development of airborne software is faced with great challenges in complexity,security and cost.For the development of an aero-engine numerical control system,with the combination of the features and objectives of FADEC software,the application of SCADE in the development of FADEC software is explored.Two different SCADE model-based development(MBD) resolutions were researched and two FADEC applications were developed by these two resolutions respectively.The correctness of the development results was verified by model test,model coverage analysis and software and hardware integration test.A new development process was proposed by the combination of SCADE and Simulink,and some of the key notes were illuminated.The application scope of these two SCADE MBD resolutions is analyzed and considerations for choice are proposed.The merits and demerits of SCADE in the development of airborne software are analyzed and summarized.
  • 摘要：为保障轨道车辆转向架牵引电机滚动轴承安全、平稳、可靠地运行,提出一种基于振动特征的轨道车辆转向架牵引电机滚动轴承(以下部分简称电机轴承)可靠性评估方法.该方法首先从实测得到的振动信号中提取并优选出能反映电机轴承状态的特征指标;然后,将优选出的敏感特征指标利用主成分分析法(PCA)进行多域特征指标的加权融合,得到一个能全面、准确、有效地表征电机轴承性能状态的特征指标;再将这个融合后的特征指标作为响应协变量与可靠度之间建立可靠性评估模型,从而对电机轴承运行可靠性提供了有效的评估.最后通过在某车辆转向架牵引电机轴承上的实际应用说明该方法的有效性和合理性.%In order to ensure the safe,smooth and reliable operation of rolling bearings in the traction motor of vehicle bogie,a reliability evaluation method for these bearings (the following parts referred to as motor bearings) based on vibration characteristics was proposed.Firstly,characteristic indexes which can reflect the state of the motor bearings were extracted and selected from the measured vibration signal.Then,a characterization was obtained by the weight fusion with the selected sensitive characteristic index by using principal component analysis (PCA),which could represent the performance degradation trend of motor bearings comprehensively,accurately and effectively.And then the fused characterization was used as the response covariate to establish the reliability evaluation model with reliability index to effectively evaluate the running reliability of the motor bearings.Finally,the rationality and effectiveness of this method were demonstrated by a practice sample of motor bearings.
  • 摘要：In order to solve the problems existing in angle calibration for the mobile speed measuring equipment,the orientation is measured by GPS/BD system,which has the advantages of simple device,small volume,low cost,short initialization time,high precision,no accumulation error,no geographical limitation,and so on.The way of angle calibration by the double antenna GPS/BD system is designed.In the completion of calibrating the angle of radar,while the station coordinate of the device can also be measured,which reduces the requirements of the device measurement site,and lays the foundation for doing trial task in the true sense in the mobile state.The test results of the mobile speed measuring device show that the accuary of this way is similar to that of the traditional way,and the calibration process is greatly simplified.%针对机动参试的高精度测速设备标校存在的问题,利用GPS/BD卫星导航定位系统进行方向测量,具有设备简单、体积小、成本低、初始化时间短、精度高、无积累误差、不受地理条件影响等优点.设计了双天线GPS/BD系统进行雷达设备角度标校方法,在完成雷达角度标校的同时还可进行站址坐标的测量,降低了雷达设备对测量场地的要求,为实现真正意义上的机动参试奠定了基础.经某高精度测速设备试验表明,该方法标校精度与传统的方位标校方法相当,但标校效率提高,过程得以最大程度简化.
  • 摘要：钢丝绳等引起的纵向振动信号,对装配线上的智能提升装置测量和控制产生了极大影响,从而降低了装配工人的工作效率.采用常规的FIR、IIR等滤波算法进行处理,在信号的突变点处滤波效果不理想.为了有效地解决上述问题,提出了一种基于突变点检测的混合滤波方法.该方法通过顶点检测算法和筛选条件设置,能有效地检测出振动信号的突变点;同时经过混合滤波算法,有效地滤除了振荡信号对测量系统的影响.实验结果表明,该方法能有效地滤除振动信号,提高了测量系统的测量精度.%The longitudinal vibration signals caused by the steel wire rope have a great influence on the measurement and control of the intelligent lifting device on the assembly line,the working efficiency of the assenly workers is reduced.Using conventional FIR,IIR and other filtering algorithms for processing,the filtering result of the signal at the catastrophe point is not ideal.In order to solve the above problems effectively,a hybrid filtering method based on catastrophe detection is proposed.Through the vertex detection algorithm and the filter condition setting,abrupt change of the vibration signal can be effectively detected.At the same time,the influence of the oscillation signal on the measurement system is effectively eliminated by the hybrid filtering algorithm.The experimental results show that the method can effectively remove the vibration signal and improve the measurement accuracy of the measurement system.
  • 摘要：In order to solve the problems of common wheelchair on inconvenience for disabled people and low degree of intelligence,an intelligent wheelchair control system based on brain wave sensor is proposed.The system adopts STM32 microcontroller as the control core and communicates with the brain wave sensor via bluetooth transparent transmission.In the analysis of the brain wave data steam,the digital trap filter is used to denoise,and the improved sliding window method,feature extraction algorithm and K-nearest neighbor algorithm are studied and designed,the pattern recognition of brain wave is achieved.The experimental results prove that this system has the advantages of short response time and high recognition accuracy,and completes the idea control of the wheelchair's movement.%针对普通轮椅残障人士使用不便,智能化程度低等问题,提出了一种基于脑电波传感器的智能轮椅控制系统.系统采用STM32单片机为控制核心,以蓝牙透传的方式与脑电波传感器进行通信,在脑电波信号数据流解析中,通过数字陷波器滤噪,并研究设计了改进的滑动窗口算法、特征提取算法和K-近邻算法,实现了对脑电波信号的模式识别.通过实验验证,该系统具有响应时间短和识别准确率高的优点,完成了对轮椅运动轨迹的意念控制.
  • 摘要：针对噪声污染具有时间上的突发性和空间上的不连续性,设计了由移动终端、外接传声器、移动网络、接收终端组成的分布式噪声网络检测系统.移动终端和外接传声器组成数据采集节点,采集节点采集实时的噪声分贝值,利用移动终端的定位技术,定位到采集节点的当前位置,用移动终端的3G移动网络与接收终端连接,将噪声信息和位置信息打包发送到接收终端,接收终端负责接收各个节点的噪声信息和位置信息,利用LBS的Web技术,将数据以二维地图的方式展示,并且作为服务器提供信息查询服务.实验证明,系统稳定、可靠、成本低,为城市噪声测试提供了一种解决方案.%In order to solve the noise monitoring problems in the city,a multi-nodes-distributed noise monitoring system composed of mobile terminal,external microphone,mobile network and receiving terminal was designed.Firstly,mobile terminal and external microphone make up the data acquisition node to acquire the realtime noise data,and get the current position using locating technology.Secondly,the mobile terminal is connected with the receiving terminal through 3rd generation mobile network,the location information together with noise information are sent to the receiving terminal.Thirdly,the receiving terminal displays the data in a twodimension map by using LBS Web technology,and offers information inquiry service as a server.Experiments show that this system is stable,reliable,low-cost,and can be a solution to city noise measurement.
  • 摘要：According to the present situation of power supply equipment in mine monitoring system,combined with the special application environment of mines,the adverse factors affecting their work are analyzed,and the development trends are put forward,including adaptive power supply,inductively coupled power transmission,large capacity intrinsically safe power supply,long distance transmission of intrinsically safe power supply,intelligent control and self diagnostic fault prediction,intelligent estimation of battery capacity,prolonging time of standby power supply,enhancing anti-interference ability of the intrinsically safe power supply,and so on.The realization scheme is pointed out,and a new way is provided for research.%针对矿井监控系统电源设备的现状,结合矿井特殊的应用环境,对影响其工作的不利因素进行了分析,提出了发展趋势,即输入电源宽压自适应、电能感应耦合非接触传输、本安电源大容量化、本安电源远距离传输、智能化控制及故障自诊断、电池容量预估智能化、备用电源时间延长、本安电源抗干扰能力增强等,并指出实现方案,对相关研究提供了新的思路.
  • 摘要：A geometric map matching algorithm based on dynamic weight for dense and complicated urban road network was proposed,which accurately adjusted the raw GPS vehicle track point to the correct point,and also matched the raw GPS point to the actual road segment in the city digital map.In the matching process,the digital map was divided by the grid,and the matching candidate road segment set was determined according to the latitude and longitude range of the grid,where the GPS points to be matched were located.Then the projection distance,heading angle and trajectory angle of the GPS points to be matched were respectively used to find out the final matching segment from the candidate road segment through the dynamic weighting algorithm and the raw GPS points were revised.The weighting coefficient used in the dynamic weighting algorithm was obtained dynamically according to the GPS points to be matched in the matching process.Finally,the simulation result shows that the matching accuracy of the proposed algorithm is superior to the fixed weighted matching algorithm.%针对密集且复杂的城市路网提出了一种基于动态加权的几何地图匹配算法,将采集的原始GPS车辆轨迹点进行校正,并将其精确定位到数字地图中的实际路段上.在匹配过程中,将数字地图按网格进行划分,根据待匹配GPS点所在的网格的经纬度范围确定匹配候选路段集;分别使用待匹配GPS点的投影距离、航向夹角和轨迹夹角,通过动态加权算法从候选路段集中查找最佳匹配路段,并获得待匹配GPS点的校正坐标,其中动态加权算法中使用的权值系数在匹配过程中根据待匹配GPS点动态计算获取;最后进行动态加权和固定加权几何地图匹配仿真实验,结果表明,所提算法优于固定权值匹配算法.
  • 摘要：In the process of manufacturing,large size workpiece is faced with a variety of detection tasks,large size measurement technology is becoming a more and more important branch of modem testing technology.In order to improve the static geometry precision of large size workpiece,two kinds of large size and high precision absolute measurement methods based on laser interferometry were put forward by combining the laser interferometer with the traditional length measuring machine.Through the theoretical analysis and experimental comparison of measurement uncertainty,the accuracy and feasibility of the methods were validated.The dynamic measurement of the traditional laser interferometer is converted into a high precision static testing,which not only expands the application field of the laser interferometer,but also improves the measuring accuracy and detection efficiency of the length measuring machine.%大型工件在制造过程中,面临着各式各样的检测任务,大尺寸测量技术成为现代测试技术的一个越来越重要的分支,为提高大尺寸工件静态几何量的检测精度,将激光干涉仪与传统测长机相结合,提出两种基于激光干涉技术的大尺寸高精度的绝对测量方法.通过对两种测量方法的不确定度理论分析和实验比对,验证方法的准确度和可行性.一方面激光干涉仪传统的动态测量转换为高精度的静态量检测,拓展了激光干涉仪的应用领域,同时弥补了测长机在绝对测量能力方面的不足,提高了测长机的测量精度和检测效率.
  • 摘要：In order to solve the problems that the power supply and communication unit of non-contact high speed roller body temperature measuring device is complex and interfered easily,a temperature measuring device with simple structure and high measuring precision is developed.A hollow transformer consisting of two inductors completed both energy transfer and informatin communication.The stator side DC power was supplied to the rotor by the principle of inductive coupling based on full bridge inverter.The communication signals were modulated by the sampling data of the Manchester coding,and the temperature information was transmitted to the stator side to achieve the communication between the stator and the rotor.Theoretical calculations and hardware experiments show that the device has good power supply stability and communication anti-interference ability.%针对高速辊体温度非接触式测量装置供电及通信单元结构复杂、易受干扰的问题,研制了一种结构简单、测量精度高的新型测温装置.利用由两个电感线圈构成的空心变压器既完成能量传送又能进行信息通信.定子侧直流电源经全桥逆变后利用电感耦合原理向转子供电.通过曼彻斯特编码方式调制采样数据得到通信信号,利用反向调制原理,向定子侧传递温度信息完成定转子之间通信.经理论计算与硬件实验表明,装置具有良好的供电稳定性以及通信抗干扰能力.
  • 摘要：针对传统小波阈值去噪阈值选取的问题,将奇异值差分谱的方法与蚁群算法相结合运用到小波阈值降噪中,提出一种小波系数双阈值寻优方法.首先将待处理含噪信号进行多尺度小波分解;之后根据每级信号小波系数的奇异值差分谱分析得到寻优的目标函数;然后根据目标函数利用蚁群算法在每级的小波系数上进行阈值寻优;最后重构经过最优阈值量化规则处理的小波系数得到降噪信号.通过对仿真信号的降噪处理表明本方法对不同特点信号的降噪效果要好于传统阈值降噪方法;对滚动轴承以及深沟球轴承的振动故障信号的降噪处理验证了方法的可行性和适用性.%In order to solve the problem of traditional wavelet threshold de-noising threshold selection,the singular value difference spectrum and the ant colony optimization(ACO) are applied to the wavelet threshold denoising,a method of double threshold searching is proposed.Firstly,the multi-scale wavelet decomposition was performed on the noisy signal to be processed.After that the optimization of the objective function was obtained based on the singular value difference spectrum analysis of the wavelet coefficients of each level signal.Then the threshold was optimized on each level of wavelet coefficients using the ACO based on the objective function.Finally,the denoising signal was obtained by reconstructing the threshold quantified wavelet coefficients.The noise reduction of the simulation signal shows that this method is better than the traditional threshold denoising method.The feasibility and applicability of the proposed method are verified by the noise reduction of vibration fault signals of rolling bearing and deep groove ball bearing.
  • 摘要：In order to eliminate a series of short circuit faults in transmission lines of power system,a way that combining the Hilbert-Huang transform(HHT) of transient signal characteristic extraction and probabilistic neural network(PNN) as a fault classifier was used to classiy the faults for transmission lines.HHT can fully reflect the characteristics of partial transient signals,the fault signal after the ensemble empirical mode decomposition (EEMD) is de-noised by wavelet threshold.By using the HHT refactoring,four groups feature energy function values of three phase current and zero sequence current are obtained,and used as four groups characteristic quantities to be input to the PNN whose smoothing factor is optimized by the genetic algorithm for training,finally the classifier is obtained.The Matlab simulation experiments show that the method can effectively optimize the signal waveform and improve the fault classification accuracy.%针对电力系统输电线路一系列的短路故障,把希尔伯特黄变换(HHT)完成对暂态信号特征量的提取与概率神经网络(PNN)作为诊断故障分类器相结合的方式,作为对输电线路故障分类的方法.利用HHT能够充分反映局部暂态信号的特点,对集合经验模态分解(EEMD)后的故障信号进行小波阈值降噪,运用HHT进行重构,得到三相电流以及零序电流4组特征能量函数值,并作为4组特征量输入到经遗传算法优化过平滑因子的PNN中进行训练,最终得到分类器.经Matlab仿真实验显示,该方法能够有效优化信号波形并提高故障分类精度.
  • 摘要：为了更好地实现对以永磁同步电机为驱动电机的电动汽车车速的控制,设计了一套基于滑模控制的永磁同步电机控制系统,并且在此基础上加入最大转矩电流比控制,对滑模控制和最大电流转矩比控制的数学模型进行了分析.仿真分析表明,加入最大转矩电流比的滑模控制系统不会受到外界变化影响,永磁同步电机能够稳定运行.同时系统响应更快,抗干扰能力大大提高,鲁棒性更强.%In order to realize the speed control of electric vehicle with permanent magnet synchronous motor (PMSM) as driving motor,a set of PMSM control system based on sliding mode control was designed,and the maximum torque current ratio control was added on this basis.Also,the mathematical model of sliding mode control and maximum current torque ratio control was analyzed.The simulation analysis shows that the sliding mode control system with the maximum torque current ratio is not affected by external changes,and the PMSM can run stably.At the same time,the system response is faster,the robustness is better and the anti-interference ability is greatly improved.
  • 摘要：The human posture detection and behavior analysis have a wide range of practical value.A system based on plantar pressure was designed for body posture detection and behavior analysis.It consisted of pressure acquisition module,data processing module,wireless communication module and behavior analysis software.Posture detection system acquires the foot pressure data and communicates via Bluetooth.Behavior analysis software uses mutli-class support vector machine to distinguish the five classic human postures of sitting,standing,walking,running and climbing.Experiments show that the system has good recognition accuracy and reliability to human posture,and can be used in human posture detection and behavior analysis.%人体的运动姿态检测和行为分析具有广泛应用价值.设计了一种基于足底压力的人体姿态检测和行为分析系统,系统由压力采集模块、数据处理模块、无线通信模块和行为分析软件组成.姿态检测系统获取足底压力数据,采用蓝牙方式进行数据通信,行为分析软件使用支持向量机多分类方法实现坐、站、走、跑和爬楼5个经典人体姿态的区分.实验证明该系统对人体姿态具有较好的识别精度和可靠性,可以用于人体姿态检测和行为分析.
  • 摘要：常规的单极子发射声波没有指向性,能量损失过多,用模态分解的方法设计出合适的阵列加权系数,就可以控制圆环阵的辐射主瓣角宽和旁瓣级,以利于在任意地层中有效激励滑行纵横波和减少能量损失.通过comsol有限元软件对圆环阵声波辐射数值模拟的例子,分析了圆环阵的辐射指向性对声波测井中各种模式波的接收幅度和到达时间的影响.结果表明,只要在圆环阵的各阵元上施加合适延迟时间合适幅度的激励信号,就能根据不同的实际情况设计出各种主声束的宽度和方向.圆环阵的使用可明显地改善声波测井的测量质量,为声波辐射器在石油勘探中的应用提供一定理论依据.%Conventional monopole has no sound directivity,resulting in too much energy loss.The suitable array weighting coefficientit is designed by the method of modal decomposition,which can control the circlular array radiation angle of main lobe width and sidelobe level,and facilitate to excite effectively and reduce the energy loss of p-wave.By the finite element software comsol to circlular array acoustic radiation examples of numerical simulation,the influence of the circlular array radiation directivity on all kinds of mode wave receiving amplitude and arrival time in acoustic logging is analyzed.Results show that the width and direction of all kinds main beam can be designed according to the different actual situation as long as the excitation signal with appropriate delay time and amplitude is applied to each array element of the circlular array.The use of circular array can obviously improve the measuring quality of acoustic logging and provide certain theory basis for the application of acoustic transmitter in oil exploration.
  • 摘要：In order to improve the anti-jamming performance of unmanned aircraft vehicle (UAV) data link,based on the research of frequency hopping spread spectrum (FHSS) and frequency hopped orthogonal frequency division multiplexing (FH-OFDM),combined with orthogonal code time division multi-subchannels spread spectrum modulation (OC-TDMSCSSM),a new anti-jamming scheme called single orthogonal code frequency hopped orthogonal frequency division multiplexing (SOCFH-OFDM) modulation was proposed.The mathematical model was established,then the bit error rate (BER) formula of anti-jamming was deduced.Simulation results show that when the BER reaches 10-5,the anti-broadband and anti-narrowband jamming of this scheme both are about 1.5 dB higher than that of OC-TDMSCSSM system under Rician channel.%从提高无人机数据链的抗干扰性能出发,在研究跳频扩频(FHSS)、跳频正交频分复用(FH-OFDM)基础上,结合正交码时分多子信道扩谱调制(OC-TDMSCSSM)提出了一种单一正交码跳频正交频分复用(SOCFH-OFDM)新的抗干扰方案,建立了数学模型,推导了抗干扰性能误码率公式.仿真结果表明,在莱斯信道下,当误码率达到10-5时,系统的抗宽带干扰和抗窄带干扰性能均比OC-TDMSC-SSM系统要高出1.5 dB左右.
  • 摘要：为了解决煤矿因电源故障导致的供电中断,使扇风机停风产生安全事故,威胁人身安全的问题,引入双电源快速切换装置到煤矿供电系统中.根据装置基本原理,制定快切方案;将检测电压突变量作为电压跌落检测的判据,提高故障检测速度与精度;针对切换过程中机械开关的延时问题,采用反并联晶闸管的方法,减少动作时间;针对残压的特征,判断合适的合闸时机,以同相角进行合闸,减小对系统的冲击.仿真实验证明:双电源快速切换装置能快速切换到无故障电源,快速恢复供电,保障扇风机可靠运行,送电时间最短.%In order to solve the problem of coal mine power supply interruption caused by power failures,which led to fans wind stopped to produce safety accidents,threatening personal satefy,the fast switching power supply device is introduced into the coal mine power supply system.According to the basic principles of the device,the fast switching scheme was developed.The detection voltage variation algorithm was used as the voltage sag detection criterion to improve the speed and accuracy of fault detection.In order to eliminate the mechanical switch delay during switching,the anti-parallel thyristor method was adopted to reduce the operation time.According to the characteristics of the residual pressure,the appropriate timing of closing was determined,with the correspond closing phase,the impact on the system was reduced.The simulation results show that the dual power fast switching device can switch to a trouble-free power supply quickly,and restore power supply rapidly,guarantee reliable operation of electric fan with the shortest transmission time.
  • 摘要：In order to study the frictional dynamics and current conduction mechanism of sliding electrical contact under fluctuating load,it is necessary to simulate the load fluctuation of pantograph-catenary on sliding electrical contact testing machine.For this purpose,the dynamic pressure servo controller based on voice coil motor was designed.On the basis of establishing the mathematical model of the fluctuating load servo system,an improved active disturbance rejection control(ADRC) strategy based on voice coil motor was designed,and the specific design method was given.Combination with fuzzy RBF network,the parameter self-tuning is realized.Comparative simulation of traditional ADRC,PID control and improved ADRC is implemented,and the improved ADRC is verified by experiments.Simulation and experimental results show that the improved ADRC strategy has good control performance and robustness,which satisfies the demands of the servo control system.%为开展波动载荷下滑动电接触摩擦动力学与电流传导机理研究,需在滑动电接触实验机上模拟弓网压力载荷波动,为此设计了基于音圈电机的动态压力伺服控制器.在建立波动载荷伺服系统数学模型基础上,设计了基于音圈电机的改进自抗扰控制方案,给出了改进自抗扰控制器的具体设计方法,并通过与模糊RBF网络相结合,实现参数自整定.针对传统自抗扰控制、PID控制与改进型自抗扰控制进行了仿真对比分析,并对改进型自抗扰控制进行了实验测试.仿真以及实验研究表明,该控制策略具有良好的控制性能以及鲁棒性能,满足实验系统要求.

    测控技术的期刊信息

    • 曾用名：航空测试技术
    • 创刊时间：1982
    • 地区：CN
    • 语言：中文
    • 热门主题：中国航空工业集团公司北京长城航空;测控技术研究所
    • 学科分类：

    测控技术的获奖情况

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    • • 在首次中国期刊方阵评选中，《测控技术》进入中国期刊方阵双百科技期刊方阵

    测控技术的收录情况

    • • 北大核心期刊（1992版）
    • • 北大核心期刊（2008版）
    • • 北大核心期刊（2011版）
    • • 中国科学引文数据库（2011-2012）
    • • 中国科学引文数据库（2013-2014）
    • • 中国科学引文数据库（2015-2016）
    • • 中国科学引文数据库（2017-2018）
    • • 日本科学技术振兴机构数据库
    • • 中国科技核心期刊

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    • 期刊栏目：综述；数据采集与处理；智能感知与仪器仪表；试验与测试；计算机与控制系统
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