摘要——浙江科技学院自动化专业英语期末考试_汽车专业英语期末考试

摘要——浙江科技学院自动化专业英语期末考试由刀豆文库小编整理，希望给你工作、学习、生活带来方便，猜你可能喜欢“汽车专业英语期末考试”。

摘要：对楼宇自动化安防系统进行了研究，提出了一种基于LonWorks总线的分布式控制系统，介绍了系统的工作原理、网络构成、硬件功能和通信实现。

楼宇自动化安防系统the security system of building automation总线 bus

分布式控制系统Distributed control system工作原理the operational principle

网络构成the network configuration硬件功能the hardware function

The research is carried out for the safety system of building automation in the paper.A distributed control mode based on LonWorks bus is proposed.The performing principle of the system，the configuration of the network, the function of hardware and the realization of communication are introduced.老师翻译The security system of building automation is studied.ALonWorks bus based distributed control system is proposed.The system operational principle, network configuration, hardware function and realization of communication are discued.A temperature control system was proposed employing proportional valve in order to retain the constant oil temperature in a large hydraulic system.The mathematic model of temperature was conducted based on laws of thermodynamics.Fuzzy PID strategy was employed in the real system.Results show that the fuzzy PID controller can reach control accuracy of 45±1 ℃.Compared with conventional PID controller, the fuzzy PID controller can achieve higher control accuracy, faster response and stronger robustne in oil temperature controloflarge hydraulic system

针对某大型液压系统的油温恒定需求，分析系统发热的数学模型和油液温度变化的滞后特性，提出一套运用比例水阀连续调节板式换热器冷却水量的大型液压系统油温控制方法．在MATLAB仿真环境中，比较分析使用常规PID和参数自整定模糊PID算法的油温控制特性．仿真结果表明，模糊PID控制器具有不依赖系统模型、响应快、控制精度高的优点，且易于PLC实现．将模糊PID控制方案应用于实际系统中，实验结果表明，参数自整定模糊PID控制器能够克服油温的大时滞、非线性变化，使得油液温度有效控制在45±1℃；参数自整定模糊PID控制器的响应速度、控制精度均优于常规PID，适合应用于大流量液压系统的油温控制．

We consider the problem of automatically recognizing human faces from frontal views with varying expreion and illumination, as well as occlusion and disguise.We cast the recognition problem as one of claifying among multiple linear regreion models and argue that new theory from sparse signal representation offers the key to addreing this problem.This new framework provides new insights into two crucial iues in face recognition: feature extraction and robustne to occlusion.We conduct extensive experiments on publicly available databases to verify the efficacy of the proposed algorithm.我们考虑的问题从正面视图自动识别人脸不同表达和照明,以及阻塞和伪装。

我们把识别问题的分类之间的多元线性回归模型,认为新理论从稀疏信号表示提供了解决这一问题的关键。

这个新的框架提供了新的见解在人脸识别的两个关键问题:特征提取和健壮性闭塞。我们在公开数据库进行大量实验验证该算法的有效性。

A disturbance observer based BP-PID controller was designed in order to enhance

thecontrol precision of furnace temperature.An equivalent compensation was introduced in the input of the BP-PID controller to form a new controller…

The controller can automatically adapt to each kind of working condition and maintains very high precision at stable state.The controller can strongly inhibit from the large range of payload disturbances.设计了一个基于扰动观测器的BP-PID控制器以提高炉温的控制精度。

介绍了一个等价补偿输入的BP-PID控制器组建一个新的控制器…

控制器可以自动适应各种工况在稳定状态和保持非常高的精度。控制器可以从大范围的强烈抑制负载扰动。

为了尽可能降低不稳定特征点对识别率的影响,研究提出了基于序列图像提取稳定特征点的虹膜识别算法。该算法

首先用二维Gabor滤波器对序列虹膜图像提取特征编码,然后对该序列特征编码求交集以提取稳定特征点,并利用这些稳定特

征点建立虹膜的特征模板库,最后通过计算相似度,获得识别结果。在实验室采集的序列虹膜图库上,当等错率为0.3017%,分类阈值为0.6402时,正确识别率可以达到99.73%。实验证明该算法是有效、可行的,并更好地提高了虹膜的分类精度和改善了虹膜的识别性能。

As much as poible in order to reduce the influence of the unstable characteristic points on recognition rate, and to study the optimum extraction was proposed based on image sequences stable feature points of iris recognition algorithm.The proposed algorithm

First 2 d Gabor filter of serial iris images was used to extract feature encoding, then the characteristics of the sequence coding for intersection stable to extract feature points, and using the stable

Indications point to establish the iris feature template library, finally by computing the similarity, to obtain recognition results.Acquisition sequence of iris gallery in the laboratory, when such fault rate is 0.3017%,Claification threshold is 0.6402, the correct recognition rate can reach 99.73%.Experiments prove that the algorithm is effective and feasible, and better improve the claification precision of the iris and improved the iris recognition performance.重要句型

We consider the problem of ……•我们考虑的问题……

This paper presents …, an algorithm that…•一个算法,提出了……

In this paper, we provide two different solutions to the problem of……

在本文中,我们提供了两种不同的解决方案的问题…

We propose an …based algorithm.•我们提出一个基于…算法。

Based on……, we propose a general algorithm for…基于…我们提出一个通用的算法 This framework can handle errors due to……这个框架能够处理错误由于

We first simplify this system by…and then solve the system by two alternative techniques.The first one is based on…and the second one on…

我们首先简化该系统由两个可选…然后解决系统技术。第一个是基于…和第二个… a key iue is…

A new … is proposed for…提出了一个新的…

We demonstrate that our solutions are efficient, robust, and practical by experiments on synthetic and real data.我们证明我们的解决方案是有效的,健壮的,和实际实验合成和真实的数据。

Experimental results demonstrate the advantages and limitations of the algorithm on both simulated and real-world data.实验结果证明该算法的优点和局限性对模拟和实际数据

We conduct extensive experiments ……to verify…我们进行广泛的实验…来验证…

Results from simulations and experiments show the improved performance of the proposed仿真和实验结果表明提出的改进的性能

algorithm when compared with that of…算法相比与…