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2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)最新文献

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The Level of Accuracy of Generation Moment Determination of Impulse Excitation of the String Converter and its Impulse on the Information and Measuring Systems and Their Ability to Work 串变换器脉冲激励的产生力矩确定精度及其对信息测量系统的影响及其工作能力
N. Gusev, A. Kucherenko, D. Mandritsa
The article is devoted to the problem of improving the reliability of information and measuring control systems based on string converters with impulse excitation method and ensuring the maximum “signal/noise” ratio at their output. The influence of the parameters of the excitation impulse sequence of continuous string oscillations on the amplitude and stability of its oscillations is also considered. The optimal phase of excitation impulses which ensures the stability of the primary transducer is experimentally determined. The results of experimental studies revealing the influence of the excitation impulse phase on the string oscillations amplitude are given. The comparison of the experimental data with theoretical ones is carried out and hypotheses explaining their difference are put forward. The ways of decreasing the impact of inaccuracy in determining the phase of excitation impulses on the amplitude of string oscillations and improving the reliability of information-measuring systems for monitoring the technical condition of unique buildings on the basis of string sensors with an impulse excitation method are proposed.
本文研究了如何提高脉冲激励串变换器信息测控系统的可靠性,并保证其输出的最大信噪比。考虑了连续弦振荡的激励脉冲序列参数对其振幅和稳定性的影响。通过实验确定了保证主换能器稳定性的激励脉冲的最佳相位。实验结果揭示了激励脉冲相位对弦振荡幅度的影响。对实验数据与理论数据进行了比较,并提出了解释两者差异的假设。提出了减少脉冲激励法弦传感器相位测定不准确对弦振动幅值影响的方法,提高了基于脉冲激励法的弦传感器技术状态监测信息测量系统的可靠性。
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引用次数: 3
Methods for Increasing the Accuracy of Geoacoustic Emission Signal Models Based on Sparse Approximation 基于稀疏逼近提高地声发射信号模型精度的方法
O. Lukovenkova, Y. Marapulets, A. Kim, A. Tristanov
The acoustic emission phenomenon arises due to local changes of dynamic structure of solid body. Main sources of emission are micro and macro cracks, friction and shifts. Active and passive acoustic emission methods are widely used to study the strength of materials, the landscape stability and various stages of seismic process. Geoacoustic emission is an acoustic emission of the sound range and it describes the interaction of micro and macro dislocations. Anomalies of geoacoustic signals may be earthquake precursors and they are of great interest to researchers. A typical geoacoustic signal consists of sequence of specific shape short pulses. Authors propose an additive model of geoacoustic signal. According to the model the signal decomposes into a sum of components described by the modulated Berlage and Gauss functions. The use of the matching pursuit method was offered to determine model coefficients. Unfortunately, this method has cubic computational complexity depending on number of functions on which the signal is decomposed. This article is devoted to ways to improve accuracy of the model offered by authors. Various numerical schemes allowed to increase the adaptive property of matching pursuit method with respect to geoacoustic emission signals are considered and compared.
声发射现象是由于固体动力结构的局部变化而产生的。发射源主要有微观和宏观裂纹、摩擦和位移。主动声发射和被动声发射方法被广泛用于研究材料强度、景观稳定性和地震过程的各个阶段。地声发射是一种声音范围内的声发射,它描述了微观和宏观位错的相互作用。地声信号异常可能是地震的前兆,引起了研究人员的极大兴趣。一个典型的地声信号由一系列特定形状的短脉冲组成。提出了一种地声信号的加性模型。根据该模型,信号分解为由调制的伯拉奇函数和高斯函数描述的分量和。提出了采用匹配追踪法确定模型系数的方法。不幸的是,这种方法具有三次计算复杂度,这取决于分解信号的函数的数量。本文致力于探讨作者提出的提高模型准确性的方法。考虑并比较了提高匹配追踪方法对地声发射信号自适应性能的各种数值格式。
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引用次数: 1
The Power Consumption Decreasing of the Two-Wheeled Balancing Robot 降低两轮平衡机器人的功耗
A. Ivoilov, V. Trubin, V. Zhmud, L. Dimitrov
This article is devoted to solving the task of decreasing the power consumption of a two-wheeled balancing robot. Since the power source of this device is on-board batteries the requirement for power consumption is relevant. In the course of the work the analysis of the device processes which shows that a significant current flows in the windings of the motors during the stabilizing system operation is carried out. This is the reason for the high power consumption. In addition this causes the motor windings heating which also has a negative effect on the system operation. Further in the work the factors influencing the power consumption of the device are researched taking into account the features of stabilization system implementation on a microcontroller and the features of the actuators and their control. Based on the result of this research a method of reducing ripple of the current in the motor windings is proposed and an example of its implementation in the control program of the device is given. It is shown that such system can be realized. And finally the results of measuring the supply current of the device which show significant reducing the power consumption are given.
本文致力于解决降低两轮平衡机器人功耗的问题。由于本设备的电源是车载电池,因此对功耗的要求是相关的。在工作过程中,对设备过程进行了分析,表明在稳定系统运行期间电机绕组中有明显的电流流动。这就是高功耗的原因。此外,这会导致电机绕组发热,这对系统运行也有负面影响。在此基础上,结合稳定系统在单片机上实现的特点和执行器及其控制的特点,对影响器件功耗的因素进行了研究。在此基础上,提出了一种减小电机绕组电流纹波的方法,并给出了该方法在器件控制程序中的实现实例。结果表明,该系统是可以实现的。最后给出了器件的供电电流测量结果,表明器件的功耗明显降低。
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引用次数: 1
Estimation of Global Solar Radiation and Performance of Photovoltaic Modules Using Long-Term Meteorological Data 利用长期气象数据估算全球太阳辐射和光伏组件的性能
V. Shakirov
The paper formulates the problem of establishing the initial data for assessing insolation and electric power generation by solar photovoltaic systems. Three sources of information are evaluated: reference books on the climate, satellite meteorological data and weather stations data. In order to improve the precision of assessment, it seems expedient to combine sources of information regarding the factors that affect electric power generation by solar photovoltaic systems. The paper proposes a method for estimating electricity generation on the basis of reference information and open-access weather stations data. Assessment of solar radiation takes into account the beam, sky-diffuse and ground-reflected components. The method incorporates the impact of the total and low-level clouds on solar radiation, as well as the impact of temperature on the efficiency of solar photovoltaic systems. Assessment of solar radiation and electric power generation by solar photovoltaic systems is conducted in Narin-Kunta, a village in the Irkutsk region on the shore of lake Baikal.
本文阐述了建立评估太阳能光伏系统日照和发电量的初始数据的问题。评估了三个信息来源:气候参考书、卫星气象资料和气象站资料。为了提高评估的准确性,将影响太阳能光伏系统发电的各种因素的信息来源结合起来似乎是合适的。本文提出了一种基于参考信息和开放获取气象站数据的发电量估算方法。对太阳辐射的评估考虑了波束、天空漫反射和地面反射的成分。该方法综合考虑了总云和低层云对太阳辐射的影响,以及温度对太阳能光伏系统效率的影响。在贝加尔湖岸边伊尔库茨克地区的一个村庄Narin-Kunta进行了太阳辐射和太阳能光伏系统发电的评估。
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引用次数: 1
Method for Increasing the Speed and Reducing the Error of Multidimensional Precise Logic Controller 一种提高多维精密逻辑控制器速度和减小误差的方法
E. Muravyova, M. Sharipov, A. Bondarev
A new method for increasing the speed of multidimensional precise logic controllers (MPLC) is proposed; it is based on the placement of production rules in situational subroutines the beginning of which is recorded in a special register by fuzzification procedure by equality to a logical high of the precise terms of the controlled parameter. This allowed, without losing the adequacy of control in each scan cycle, to run only one subroutine selected for fuzzification, and not the entire system of production rules of a controller. Two fundamental properties (at any given instant both only one term and only an antecedent of one rule is equal to a logical unit) of precise terms set and production rules systems under consideration are the theoretical basis for improving MPLC speed and reducing its error.
提出了一种提高多维精密逻辑控制器(MPLC)运算速度的新方法;它是基于在情景子程序中放置生产规则,其开始通过模糊化程序通过等于控制参数的精确项的逻辑高值记录在特殊寄存器中。这允许在每个扫描周期中只运行一个选择用于模糊化的子程序,而不是控制器的整个生产规则系统,而不会失去控制的充分性。所考虑的精确项集和生成规则系统的两个基本性质(在任何给定时刻只有一个项和一个规则的前项等于一个逻辑单元)是提高MPLC速度和减少误差的理论基础。
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引用次数: 7
The Application of the Hilbert Transformer for Measuring of the Reactive Power 希尔伯特变压器在无功功率测量中的应用
A. Serov, N. Serov, A. Lupachev
As is known, the reactive power of the signal can be determined by the phase shift of one of the signals to ${pi}/2$ radians and the subsequent application of the active power measurement algorithm. The time delay units, integrators and differentiators are used in practice to perform phase shift. However, the application of these devices is limited by the requirement of sinusoidal input signals. This paper consider the method of phase shift of one of the signals to ${pi}/2$ radian by using a digital Hilbert transformer. The application of this method allows to measure reactive power for polyharmonic input signals at the required frequency band. The effect of the order of the Hilbert transformer on the measurement error of reactive power is considered. A comparison of the digital implementation of the Hilbert transformer using the IIR-type digital filters and IIR-type digital filters is performed. The obtained analytical expression allows to estimate the error of measurement of reactive power due to the frequency deviation and phase response of the Hilbert transformer from the nominal value. Popular method of measuring of the active power based on the averaging of instantaneous power is considered. The analytical expressions relating the input signal frequency deviation and the measurement error of reactive power for the considered measurement methods are obtained. The validity of the obtained expressions is confirmed by simulation results of the mathematical modeling performed by the Simulink package software.
众所周知,信号的无功功率可以通过其中一个信号向${pi}/2$弧度的相移以及随后应用有功功率测量算法来确定。在实际应用中,延时单元、积分器和微分器被用来实现相移。然而,这些器件的应用受到正弦输入信号要求的限制。本文研究了利用数字希尔伯特变压器将其中一个信号移相到${pi}/2$弧度的方法。该方法的应用允许在所需频带测量多谐波输入信号的无功功率。考虑了希尔伯特变压器阶数对无功功率测量误差的影响。对采用iir型数字滤波器和iir型数字滤波器的希尔伯特变压器的数字实现进行了比较。所得到的解析表达式可以估计出由于希尔伯特变压器的频率偏差和相位响应导致的无功功率测量误差。考虑了基于瞬时功率平均的常用有功功率测量方法。得到了各种测量方法的输入信号频率偏差与无功测量误差的解析表达式。利用Simulink软件包进行数学建模的仿真结果验证了所得表达式的有效性。
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引用次数: 3
Development of the Method for Constructing Trajectories of Air Objects 空中物体轨迹构造方法的发展
S. Zhiganov, E. Zhiganova, K. Mikheev
The method for reproduction of air object trajectories in which the position and change of object coordinates in space is smoothly integrated from consistently interfaced segments with visual graphic and intuitive changes in their shape and curvature, the calculation of parametric equations for motion in each segment by three coordinates $boldsymbol{x}(boldsymbol{t}),boldsymbol{y}(boldsymbol{t}), boldsymbol{z}(boldsymbol{t})$ and for viewing area of the location station in the function of the dimensionless time parameter with its transformation at different laws of changes in linear speed.
一种再现空中物体轨迹的方法,在这种方法中,物体坐标在空间中的位置和变化从具有视觉图形和直观变化的形状和曲率的一致接口段平滑地集成在一起;以三个坐标$boldsymbol{x}(boldsymbol{t})、$boldsymbol{y}(boldsymbol{t})、$boldsymbol{z}(boldsymbol{t})$计算每段运动的参数方程,并以无因次时间参数及其在不同线速度变化规律下的变换为函数计算定位站的观测面积。
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引用次数: 2
Approximation Models for the Hydrolitospheric Processes 水岩石圈过程的近似模式
M. Pershin, E. G. Papush, A. Spivak
One of the main problems for the Caucasian Mineral Waters region is the preservation of the mineral springs, on the basis of which there are bottling plants and health resorts. To solve this problem, it is necessary to ensure technological and environmental safety in the operation of production wells. When designing control systems, it is necessary to take into account the peculiarities of the geological structure for each field. These objects are systems with distributed parameters. When designing the control system of production wells flow rates, the basic theoretical positions of analysis and synthesis for systems with distributed parameters were used. We consider the construction of an approximation model to describe the dynamic characteristics of the object in relation to the hydrolithosphere process. The approximation model is obtained by using numerical simulation methods. The proposed method also allows the use of experimental data obtained on a real object.
高加索矿泉水地区的主要问题之一是保存矿泉,在此基础上有装瓶厂和疗养胜地。要解决这一问题,必须保证生产井的工艺安全与环境安全。在设计控制系统时,必须考虑到每个油田地质结构的特殊性。这些对象是具有分布参数的系统。在设计生产井流量控制系统时,采用了分布参数系统分析与综合的基本理论立场。我们考虑建立一个近似模型来描述与水岩石圈过程有关的物体的动态特性。采用数值模拟方法得到了近似模型。该方法还允许使用在真实物体上获得的实验数据。
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引用次数: 4
Modeling and Optimization of Magnetic Circuits of a Fiber-Optic Displacement Sensor 光纤位移传感器磁路建模与优化
O. G. Babaev, S. A. Matyunin
The paper is devoted to design optimization of contactless fiber-optic displacement sensors based on the magneto-optical Faraday effect that can be used to monitor the status of plate valves controlling flows of fire and explosion hazardous substances. Design optimization of sensors allows significant improvement of metrological characteristics of measuring systems on their basis. However, issues of design optimization of such sensors have not yet been considered in scientific literature. The paper deals with the design of the valve position sensor, discusses methods of optimizing the sensor design elements and presents the results of solving optimization problems. It is established that design optimization of a magnetic field concentrator makes it possible to increase the optical flux of the sensor element by 34.4%, whereas optimizing the place of installation of a magneto-optical element (MOE) (16 … 19 mm from the point of inserting optical radiation into optical fiber) allows more than a 7-fold increase of the optical flux. Optimization of the gap between the FOSF and the movable magnetic core mounted on the valve plate allows determining the zone of optimal location of the movable magnetic core on the basis of the permissible change in the FOSF transformation function (the dependence of the FOSF output signal on the position of the valve plate).
本文研究了基于磁光法拉第效应的非接触式光纤位移传感器的优化设计,该传感器可用于监测控制火灾和爆炸危险物质流动的板阀状态。传感器的设计优化可以在其基础上显著改善测量系统的计量特性。然而,这种传感器的设计优化问题尚未在科学文献中得到考虑。本文介绍了阀位传感器的设计,讨论了传感器设计要素的优化方法,并给出了优化问题的求解结果。通过对磁场集中器的优化设计,可以使传感器元件的光通量提高34.4%,而优化磁光元件(MOE)的安装位置(距离光辐射插入光纤16 ~ 19 mm)可以使光通量提高7倍以上。通过优化FOSF与安装在阀板上的活动磁芯之间的间隙,可以根据FOSF变换函数的允许变化(FOSF输出信号对阀板位置的依赖)确定活动磁芯的最佳位置区域。
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引用次数: 0
Hardware Support of the Periodic Component Detection Algorithm Based on Zero-Crossing 基于过零的周期分量检测算法的硬件支持
Chye En Un, A. Levenets, D. Solovev
Paper proposes a hardware support of method for detecting a periodic component in a measurement signal, based on the calculation of the signal's zero-crossing numbers. On the basis of the considered method, an algorithm with low computational costs is proposed. The algorithm can be used to indicate of the progressing of resonant phenomena, to determine the presence of a carrier signal, and so on. The structures of the basic modules required for constructing hardware support devices of the proposed algorithm are proposed. The proposed modules are relatively easy to implement and can be easily manufactured for example using FPGA technology. An example of a block diagram of a detection device of periodicity with a known frequency is given. A description of the operation of the device is given and the main time diagrams are given.
本文提出了一种基于测量信号过零数计算的周期分量检测方法的硬件支持。在此基础上,提出了一种计算成本较低的算法。该算法可用于指示谐振现象的进展,确定载波信号的存在等。提出了构建该算法的硬件支撑装置所需的基本模块结构。所提出的模块相对容易实现,可以很容易地制造,例如使用FPGA技术。给出了频率已知的周期性检测装置的框图示例。对该装置的工作原理进行了描述,并给出了主要的时序图。
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引用次数: 8
期刊
2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)
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