Moving Objects
英文-设计与实现移动目标跟踪无人机_火箭地面站
Design and Implementation of Moving Object Tracker for UAV/Rocket Ground StationJoko Suryana1), Tommi Hariyadi2), Herma Yudhi Irwanto3)1)Sekolah Teknik Elektro dan Informatika, Institut Teknologi BandungJl. Ganesa 10 Bandung 40132, Telepon (022) 2501661e-Mail : joko.suryana@stei.itb.ac.id2)Departemen Pendidikan Teknik Elektro, Universitas Pendidikan IndonesiaJl. Dr. Setiabudhi No. 229 Bandung 401543)Bidang Kendali LAPANJalan Raya LAPAN Rumpin Bogor, Kode Pos 1034Abstract With the increasing development of national rocket and missile technology as conducted by LAPAN and PINDAD, as well as the need to control/monitor UAV navigation for various purposes, itis therefore the time for the development of ground station with automatic tracking ability. This research is a continuation of one year research conducted earlier on the implementation of automatic tracking platform to maintain continuous communication channel between ground station and moving objects such as rocket/UAV and research on the RX-420 rocket antenna conducted with LAPAN. In the second year, a tracking system has been implemented with microstrip-array based antenna multiband 900 MHz/2.4 GHz/S-bandto support rocket/UAV tracking and telemetry communication, rocket/UAV control command and video transmission simultaneously. The tracking distance was also increased to 100 km. Moreover, in the second year of research, tracking algorithm is also improved to support multi-object tracking at greater distance of > 100 km.Keywords : antenna, tracking, telemetry, ground station, microstrip array antenna, S-band1.IntroductionDuring rocket or UAV (Unmanned Aerial Vehicle) lauch, a dynamic movement sensor is required to detect rocket/UAV’s trajectory and altitude during its flight. In this case, the automatic tracking ability of ground station in tracking the rocket or UAV highly influences the control of the moving objects to monitor their navigation and telemetry and to accurately locate them at the required position. However, the LAPAN’s rocket [1] /UAV in Indonesia currently still relies on the ground station antenna system with manual control. There are several drawbacks of manual tracking of moving objects such as rocket/UAV. This includes interruption of data/telemetry/image/video communication due to inaccurate positioning of ground station antenna as it relies on the operator’s ability to predict the object’s position and its predicted movement. The prediction may become less accurate when the object is located at greater distance and travel at a very high speed.With the increasing development of national rocket and missile technology as conducted by LAPAN and PINDAD, as well as the need to control/monitor UAV navigation for various purposes, it is therefore the time for the development of ground station with automatic tracking ability.This research focuses on the implementation of an automatic tracking platform to maintain continuous communication between ground station and moving objects like rocket/UAV[2]. This automatic tracking platform is designed to possess two degree of freedom, fast response time, and high accuracy. The main component of tracking system is an antenna system which has the capability of observing target movement and its position accurately. The implementation of target tracking utilizes monopulse technique with high-gain antenna, capable of azimuth and elevation tracking for typical rocket/UAV travel distance. The implemented system can perform at the frequency of 900 MHz/2.4 GHz/S-band to support rocket/UAV tracking, telemetry communication, rocket/UAV command control, and video transmission simultaneously. The distance tracking capability lies between 50 km to 100 km.2.System DesignSystem design and implementation comprises of two main system tracking components, namely antenna system and target movement detection sensor as well as tracking alogarithm to follow target movement and detect target position accurately. The implementation of target tracking uses monopulse technique with high-gain antenna capable of azimuth and elevation tracking for typical rocket/UAV travel distance.移动对象跟踪系统的设计与实现无人机/火箭地面站1During the implementation of m MHz/2.4 GHz/S-band tracking system wh rocket/UAV tracking, telemetry communication command control and video transmission, se steps were applied. First, tracking system w antenna 900 MHz/2.4 GHz/S-band was impleme Second, a tracking system with t simultaneously perform telemetry co rocket/UAV control command and video tran developed. Third, tracking distance of 50 km wa to 100 km. Fourth, tracking algorithm to suppo movement tracking was developed. Fifth, evaluation of tracking platform both indoor (limtest) and outdoor for field rocket/UAV t conducted.3. Results and DiscussionThe development of tracking system w900 MHz/2.4 GHz/S-band antenna has been con research to support rocket/UAV trackin communication, rocket/UAV control comman transmission simultaneously. The tracking dista has also been increased to 100 km with impr alogarithm to support muti-object tracking distance capability of > 100 km.The second year research study designsix main research activities, namely: selectio system, selection of tracking technique, selecti algorithm, measurement of module performan testing.3.1. High-Gain Antenna System Multiband 1DesignAt this stage, the activities involved arantenna type with multiband 1.7 – 2.5 GHz higher gain to achieve longer distance reach. Th by antenna design, realization, and testing u available at Radio and Microwave Telec Laboratory (LTRGM).Figure 1. The New Antenna Trackingmultiband 900hich supports n, rocket/UAV everal working with multiband ented.the ability toommunication, nsmission was as increased up ort multi-object performancemited manuver tracking were with multiband nducted in this ng, telemetry nd and video ance capability roved tracking with greater n comprises of on of antenna ion of tracking nce, and field 1.7 – 2.5 GHz re: selection of z ability, with his is followed using facilities communicationgThe selected antenna in the parabolic antenna as conducThe 5 subarray antennas cross dip microstrip was used, as seen in F is clearly shown in Figure 2.While the SWR simulpattern can be observed in FigureFigure 2. Subarray CFigure 3. VSWR SimFigure 4. Radiation Patter3.2. Implementation of HighMultiband 1.7 – 2.5 GHzIn order to improve Tdependency on materials, the im Antenna System Multiband ulilocal market, which is FR-4. Th 2this research no longer usescted in the previous research. pole 4 x 4 V and 4 x 4 H with Figure 1. Each of the subarray lation results and radiation 3 and Figure 4, respectively.Crossdipole VHmulation Resultrn Simulation Resultsh-Gain Antenna System TKDN and reduce import- mplementation of High-gain itizes materials available inhe antenna implementation isbased on the usage of crossdipole to suppor horizontal polarization operation. A photo of th antenna is shown in Figure 5 and 6.Figure 5. Implementation of Subarray Antenna Cro PhotoFigure 6. The Result of Antenna 4 x 4 V and 4 x 4 H3.3. Measurement of High-Gain AntenMultiband 1.7 – 2.5 GHzThe measurement of multiband anincludes: gain, radiation pattern, bandwidth, b VSWR. Figure 7 and 8 show the VSWR measu and radiation pattern measurement results.rt vertical and e implementedossdipole VHImplementationnna System ntenna system beamwidth and urement set upFigure 7. VSWR MeaFigure 8. Radiation Pat3.4. Improvement of Tracking PIn this activities, selecti rocket/UAV tracking was condu technique involved the use of fo represent the four quadrants: u quadrant. Each antenna is connec and it was then connected to a ppower detector was connected to command the actuator to furthethe antenna, controlling whether elevation movement or azimuth the diagram block of trackin implementation.Figure 9. A Diagram block of Dual MBandpass FilterFigure 10. Tracki3asurement Set-up.ttern MeasurementProcessor ion of tracking technique foructed. The selected tracking four receiver antennas which upper, lower, left and right ted to a BPF (bandpass filter)power detector. The output of a microprocessor which willer command motor driver for r the antenna should follow movement. The following is g system and its hardwareMotor Processor Driver SystemPower Detectoring Modules3.5.Realization of Azimuth and Elevation Driver withHigher PowerIn this activity, azimuth and elevation driver system with two electrical motors and gear system have been designed. In order to start the two motors, a power driver is required in which its control is done through PWM (Pulse Width Modulation) with microprosesor control.Figure 11. The antenna installed at Dual Motor PlatformThe selected motor specification can be used to support a load, weighed similar to parabolic antenna/reflector which will be used as monopulse system. In order to support and control the new antenna’s load, adjustment was made in the tracking platform. Therefore, the azimuth driver motor and the elevation driver motor were replaced with motors operating at higher power. Figure 11 shows the tracking platform with dual motor.3.6.Integration of Tracking Command Module withAntenna ModuleIntegration and re-adjustment of parameter settings were made for tracking techique implementation in the new antenna system and in new dual motor system. The selected tracking technique utilizes four receiver antennas which represent the four quadrants namely: upper, lower, left, and right quadrant. Each antenna was connected to a Low Noise Amplifier (LNA) and which was then connected to power detector.The output of power detector was connected to a microprocessor which will command the actuator to further command motor driver for the antenna, controlling whether the antenna should follow elevation movement or azimuth movement. Figure 12 shows the integration of RF sub-system with antenna and dual motor platform.Figure 12. A Photo of the Integration of Control Module andAntenna3.7.Tracking Function TestingFigure 13. A Photo of Performance Measurement of ObjectMovement DetectionIn order to conduct tracking function test, signal generator, transmitting antenna which represents UAV or rocket signals and 2 (two) voltmeter appliances for right and left channel observation or upper and lower channel observation are required.The monopulse system is based on object movement detection utilizing the changes in signal received between Right-Left and Upper-Lower. Right and left channel are used by the tracking system to detect any azimuth movement, while upper and lower channel are used to detect any elevation. A photo of tracking function is shown in Figure 13.4Target to the right Target to the leftFigure 14. Object Detection Result Photo4.ConclusionFrom the above research findings and discussion, it can be concluded that a multiband antenna tracking system has been implemented successfully using four quadrant microstrip-subarrays on 900 MHz/2.4 GHz/S-band. Laboratory test results suggest that the tracking system is able to detect any moving objects in term of its directional changes, which is indicated by changes in multimeter voltage value towards power detector readings. Thus, our prototyped is ready to be integrated in the ground station to support rocket / UAV tracking and telemetry communications. REFERENCES[1].Joko Suryana dan Herma Yudhi, ”Perancangan danImplementasi Antena Payload/Telemetri/GPS Corformal pada Sistem Roket LAPAN RX-420.” Seminar Nasional RADAR IV, LIPI, 2010 di Jogjakarta[2].Joko Suryana dkk, “Laporan Akhir SINAS 2012”, RisetInsentif Nasional 2012, Kemenristek5。
九年级英语摄影主题分析单选题40题
九年级英语摄影主题分析单选题40题1. In photography, a ______ is used to adjust the focus.A. lensB. tripodC. flashD. shutter答案：A。
本题考查摄影器材词汇。
选项A“lens”意为“镜头”，用于调整焦距；选项B“tripod”指“三脚架”，用于稳定相机；选项C“flash”是“闪光灯”，用于补光；选项D“shutter”表示“快门”，控制曝光时间。
在调整焦距的语境中，使用的是镜头。
2. When taking photos of a landscape, you might need a wide ______.A. apertureB. angleC. frameD. range答案：B。
本题考查摄影场景相关词汇。
选项A“aperture”是“光圈”；选项B“angle”意为“角度”，拍摄风景时可能需要宽广的角度；选项C“frame”指“相框”；选项D“range”有“范围”的意思。
在拍摄风景需要的是宽角度。
3. The ______ can help you take clear photos at night.A. reflectorB. diffuserC. spotlightD. flashlight答案：C。
本题考查摄影辅助工具词汇。
选项A“reflector”是“反光板”；选项B“diffuser”是“柔光器”；选项C“spotlight”指“聚光灯”，能在夜间帮助拍摄清晰照片；选项D“flashlight”意为“手电筒”，主要用于照明而非摄影。
聚光灯有助于夜间拍摄清晰照片。
4. To capture a moving object, you should use a fast ______.A. filmB. memory cardC. shutter speedD. battery答案：C。
认知能力评估表
认知能力评估表Special XXXChild's Name: Gender: Date of Birth: Assessment Date: XXX XXX1.1 XXX moving objects1.2 XXX see two or more objects1.3 Able to choose target object from more than two objects based on n1.4 XXX1.5 XXX visual n for more than 10 minutes during activities1.6 XXX1.7 XXX different soundsXXX1.8 XXX more than 3 minutes2.1 Able to remember some of the 7 items presented XXX2.2 Able to remember some of the 7 items presented sequentially2.3 XXX2.4 XXX2.5 Able to remember the placement of personal items2.6 XXX2.7 XXX2.8 XXX2.9 XXXModule n XXX3.1 XXX3.2 XXX activities3.3 XXXModule n I3b XXX3.4 XXX just heardModule n I3c XXX3.5 XXX just heard3.6 XXX' nal states。
such as crying。
laughing。
anger。
and painModule n C4a Object XXX4.1 Able to find toys or other objects that are covered or hidden in front of them4.2 Able to realize that an object in front of them is missing a part4.3 Able to understand that the same object placed in different ns is of the same size4.4 XXX4.5 Able to understand that the volume of liquid does not change when the container is changed4.6 Able to understand that the volume of a solid does not change when the shape changes4.7 Able to understand that the weight of a liquid does not change when the shape changes4.8 Able to recognize that the weight of an object does not change when its n changesModule n C4b Volume nModule n C4c Weight nModule n L5a General Knowledge5.1 Able to recognize common animals5.2 Able to recognize basic colors5.3 XXX5.4 Able to know the weather。
39个工程参数
39个工程参数39个工程参数中常用到运动物体(Moving objects)与静止物体(Stationary objects)两个术语，分别介绍如下：运动物体是指自身或借助于外力可在—定的空间内运动的物体。
静止物体是指自身或借助于外力都不能使其在空间内运动的物体。
表5—2是39个通用工程参数名称的汇总。
序号 名称 序号 名称1 运动物体的重量 21 功率2 静止物体的重量 22 能量损失3 运动物体的长度 23 物质损失4 静止物体的长度 24 信息损失5 运动物体的面积 25 时间损失6 静止物体的面积 26 物质或事物的数量7 运动物体的体积 27 可靠性8 静止物体的体积 28 测试精度9 速度 29 制造精度10 力 30 物体外部有害因素作用的敏感性11 应力或压力 31 物体产生的有害因素12 形状 32 可制造性13 结构的稳定性 33 可操作性14 强度 34 可维修性15 运动物体作用时间 35 适应性及多用性16 静止物体作用时间 36 装置的复杂性17 温度 37 监控与测试的困难程度18 光照度 38 自动化程度19 运动物体的能量 39 生产率20 静止物体的能量下面给出39个工程参数的名称及意义：1．运动物体的重量 在重力场中运动物体所受到的重力。
如运动物体作用于其支撑或悬挂装置上的力。
2．静止物体的重量 在重力场中静止物体所受到的重力。
如静止物体作用于其支撑或悬挂装置上的力。
3．运动物体的长度 运动物体的任意线性尺寸，不一定是最长的，都认为是其长度。
4．静止物体的长度 静止物体的任意线性尺寸，不一定是最长的，都认为是其长度。
5．运动物体的面积 运动物体内部或外部所具有的表面或部分表面的面积。
6．静止物体的面积 静止物体内部或外部所具有的表面或部分表面的面积。
7．运动物体的体积 运动物体所占有的空间体积。
8．静止物体的体积 静止物体所占有的空间体积。
9．速度 物体的运动速度、过程或活动与时间之比。
牛顿第一定律 - 双语
The experimental results
Time 1 2 3 inference material towel wood ideal plane resistance largest smaller no Sliding distance
nearer farther farthest infinity
cotton cloth larger
conclusion ：the smoother the surface is ，the farther the candle moves.
inference ：if there is no friction exerted on the moving object, the object will keep moving.
下列说法正确的是（C） A、太空中的物体不受力，因此没有惯性 B、物体运动的速度越大，惯性越大 C、同体积的铜的惯性比铁大 D、静止的物体由于没有运动所以没有惯性
Can you use the principle of inertia to explain the phenomenon in life?
Galileo: Objects stop moving due to the effect of frictional
resistance Force is not needed to keep moving
Ramification（分歧） ：whether the effect of
frictional resistance has been consit law
Objects stop moving at last
Why moving objects stop at last?
科技英语翻译考题整理
【科技英语翻译】考题整理1、The waster radiation is revolutionizing X-ray science, enabling researchers to see things on an atomic level with eyes that are a million times more powerful than ever before,这种被视为废物的辐射使X射线科学发声了一场革命：它使科研工作者能用眼睛看到原子级的东西，这一放大率比以往提高了100万倍。
2、If we had known the properties of the material, we should have made full use of it. 要是当时了解这种材料的特性的话，我们就会充分利用它了。
3、Moving parts of a machine would wear much more rapidly without being oiled.机器的运动部件如果不加油就会磨损的非常快。
4、Cool slowly to minimize cracking. 要慢慢冷却，以最大限度的减少开裂。
5、Don`t let the stresses inside the material exceed the elastic limit, or else permanent deformation will result.不要使材料的应力超过弹性极限，否则会产生永久变形。
6、Attention must be paid to the working temperature of the machine.应当注意机器的工作温度。
7、Television is the transmission and reception of images of moving objects by radio waves. 电视通过无线电波发射和接受各种活动物体的图像。
技术冲突及其解决原理
赵新军 © all right reserved 2015.03 四川第4部分 技术冲突及其解决原理4.1 技术冲突的概念 4.2 技术冲突的一般化 4.3 技术冲突的解决原理4.4 利用冲突矩阵实现创新 4.5 工程创新实例分析赵新军 © all right reserved 2015.03 四川4.1 技术冲突的概念⏹技术冲突是指技术系统中某个参数或特性的改善会引起另一个参数或特性的恶化。
⏹指系统中有用作用的引入或有害效应的消除导致一个或几个子系统或系统性能变坏。
⏹技术冲突常表现为一个系统中两个子系统（或参数）之间的冲突。
技术冲突出现的几种情况如下：赵新军 © all right reserved 2015.03 四川 4.1 技术冲突的概念1）一个子系统中引入一种有用功能，导致另一个子系统产生一种有害功能，或加强了已存在的一种有害功能。
2）一有害功能导致另一个子系统有用功能变化。
3）有用功能的加强或有害功能的减少使另一个子系统或系统变得太复杂。
赵新军 © all right reserved 2015.03 四川4.2 技术冲突的一般化⏹通过对250万件专利的详细研究，TRIZ 理论提出用39个通用工程参数来描述冲突。
⏹实际应用中，首先要把组成冲突的双方内部性能用这39个工程参数中的某2个来表示。
⏹目的是把实际工程设计中的冲突转化为一般的或标准的技术冲突。
赵新军 © all right reserved 2015.03 四川(1).通用工程参数⏹39个工程参数中常用到运动物体（Moving objects ）与静止物体（Stationary objects ）两个术语，分别介绍如下：⏹运动物体是指自身或借助于外力可在一定的空间内运动的物体。
⏹静止物体是指自身或借助于外力都不能使其在空间内运动的物体。
赵新军 © all right reserved 2015.03 四川39个工程参数1.移动件重量 14.强度 27.可靠度2.固定件重量 15.移动对象耐久性 28.量测精确度3.移动件长度 16.固定对象耐久性 29.制造精确度4.固定件长度 17.温度 30.物体上有害因素5.移动件面积 18.亮度 31.有害侧效应6.固定件面积 19.移动件消耗能量 32.制造性7.移动件体积 20.固定件消耗能量 33.使用方便性8.固定件体积 21.动力 34.可修理性9.速度 22.能源浪费 35.适合性 10.力量 23.物质浪费 36.装置复杂性 11.张力,压力 24.信息丧失 37.控制复杂性12.形状 25.时间浪费 38.自动化程度13.物体稳定性 26.物料数量 39.生产性赵新军 © all right reserved 2015.03 四川(2) 应用实例⏹例：很多铸件或管状结构是通过法兰连接的，为了机器或设备维护，法兰连接处常常还要被拆开；有些连接处还要承受高温、高压，并要求密封良好。
个工程参数
39个工程参数39个工程参数中常用到运动物体(Moving objects)与静止物体(Stationary objects)两个术语，分别介绍如下：运动物体是指自身或借助于外力可在—定的空间内运动的物体。
静止物体是指自身或借助于外力都不能使其在空间内运动的物体。
表5—2是39个通用工程参数名称的汇总。
序号 名称 序号 名称1 运动物体的重量 21 功率2 静止物体的重量 22 能量损失3 运动物体的长度 23 物质损失4 静止物体的长度 24 信息损失5 运动物体的面积 25 时间损失6 静止物体的面积 26 物质或事物的数量7 运动物体的体积 27 可靠性8 静止物体的体积 28 测试精度9 速度 29 制造精度10 力 30 物体外部有害因素作用的敏感性11 应力或压力 31 物体产生的有害因素12 形状 32 可制造性13 结构的稳定性 33 可操作性14 强度 34 可维修性15 运动物体作用时间 35 适应性及多用性16 静止物体作用时间 36 装置的复杂性17 温度 37 监控与测试的困难程度18 光照度 38 自动化程度19 运动物体的能量 39 生产率20 静止物体的能量下面给出39个工程参数的名称及意义：1．运动物体的重量 在重力场中运动物体所受到的重力。
如运动物体作用于其支撑或悬挂装置上的力。
2．静止物体的重量 在重力场中静止物体所受到的重力。
如静止物体作用于其支撑或悬挂装置上的力。
3．运动物体的长度 运动物体的任意线性尺寸，不一定是最长的，都认为是其长度。
4．静止物体的长度 静止物体的任意线性尺寸，不一定是最长的，都认为是其长度。
5．运动物体的面积 运动物体内部或外部所具有的表面或部分表面的面积。
6．静止物体的面积 静止物体内部或外部所具有的表面或部分表面的面积。
7．运动物体的体积 运动物体所占有的空间体积。
8．静止物体的体积 静止物体所占有的空间体积。
9．速度 物体的运动速度、过程或活动与时间之比。
相对运动问题解题技巧
相对运动问题解题技巧Solving relative motion problems can be tricky, especially whenyou're dealing with moving objects in different directions. However, by understanding the basic principles and applying the right techniques, you can navigate through these problems effectively.解决相对运动问题可能有些棘手，特别是当你面对不同方向移动的物体时。
然而，通过理解基本原理并应用正确的技巧，你可以有效地解决这些问题。
One key technique for solving relative motion problems is breaking down the motion into its components. By treating each direction separately, you can simplify the problem and avoid getting confused by complex movements. This approach allows you to focus on the relative motion between objects in a clear and structured way.解决相对运动问题的一个关键技巧是将运动分解成其组成部分。
通过将每个方向分开处理，你可以简化问题，避免被复杂的运动所困扰。
这种方法使你可以以清晰和有条理的方式专注于物体之间的相对运动。
Another important aspect to consider when tackling relative motion problems is understanding the concept of frame of reference. By choosing the right frame of reference, you can simplify the calculations and make the problem more manageable. Different frames of reference can lead to different solutions, so it's crucial to choose the one that best fits the problem at hand.解决相对运动问题时要考虑的另一个重要方面是理解参考系的概念。
夜间弱光环境下运动目标的检测
ｂｙ ｄｕａ ｌ — ｓｃａ ｌｅ ｗａｙ． Ｔ ｈ ｅ ｅｘｐｅｒ ｉｍｅｎｔｓ ｓｈｏｗ ｔｈａｔ ｔ ｈｅ ｐｒｏｐｏｓｅｄ ａｌｇｏｒ ｉｔｈｍ ｉｓ ａ ｂ ｌｅ ｔｏ ｄｅｔｅｃｔ ｍｏｖｉｎｇ
收稿 日期 ：２０１６—０３—１７ 基金项 目：国家 自然科学基 金青 年基金项 目（６１３０３０８７） 作者简介 ：张运楚 （１９６８一），男 ，教授 ，博士 ，主要从事机器视觉等方面研究 ．Ｅ—ｍａｉｌ：ｙｃｚｈａｎｇ＠ｓｄｊＺＵ．ｅｄｕ．ｃｎ
山 东 建 筑 大 学 学 报
２０１６钷
（１．Ｓｃｈｏｏｌ ｏｆ Ｉｎｆｏｒｍａｔｉｏｎ ａｎｄ Ｅｌｅｃｔｒｉｃａｌ Ｅｎｇｉｎｅｅｒｉｎｇ，Ｓｈａｎｄｏｎｇ Ｊｉａｎｚｈｕ Ｕｎｉｖｅｒｓｉｔｙ，Ｊｉｎａｎ ２５０１０１，Ｃｈｉｎａ；２．Ｓｈａ ｎ ｄｏｎｇ
Ｐｒｏｖｉｎｃｉａｌ Ｋｅｙ Ｌａｂｏｒａｔｏｒｙ ｏｆ Ｉｎｔｅｌｌｉｇｅｎｔ Ｂｕｉｌｄｉｎｇ Ｔｅｃｈｎｏｌｏｇｙ，Ｊｉｎａｎ ２５０１０１，Ｃｈｉｎａ；３．Ｚａｏｚｈｕａｎｇ Ｓｈｉｚｈｏｎｇ Ｄｉｓｔｒｉｃｔ
Ｒｅａｌ Ｅｓｔａｔｅ Ｍａｎａｇｅｍｅｎｔ Ｂｕｒｅａｕ，Ｚａｏｚｈｕａｎ ｇ ２７７１００，Ｃｈｉｎａ）
Ａｂｓｔｒａｃｔ：Ｉｍａｇｅｓ ｃａｐｔｕｒｅｄ ｉｎ ｔｈｅ ｌｏｗ ｉｌｌｕｍｉｎａｔｉｏｎ ｎｉｇｈｔ ｓｃｅｎｅ ｆｏｒ ｖｉｓｕａｌ ｓｕｒｖｅｉｌｌａｎｃｅ ｈａｖｅ ｈｉｇｈ ｎｏｉｓｅ，
张运楚 ，陈永福 ，杨红 娟
（１．山东建筑大学 信息 与电气工程学 院 ，济南 ２５０１０１；２．山东省智能建筑技术重 点实验室 ，山东 济 南 ２５０１０１； ３．枣庄市市 中区房产管理局 ，山东 枣庄 ２７７１００）
Freestanding self-propelled device for moving obje
专利名称：Freestanding self-propelled device formoving objects发明人：Mark Chandler Kime,Richard HartleyJohnston申请号：US10703056申请日：20031106公开号：US20040134692A1公开日：20040715专利内容由知识产权出版社提供专利附图：摘要：A freestanding self-propelled device for moving objects. The device includes a chassis having lower frame portions and upright frame portions. A single motor-drivendrive wheel is centrally located between the lateral ends of the chassis and coupled to the chassis so as to be pivotable about a substantially vertical axis. The drive wheel is located between sets of support wheels coupled to the lower frame portion of the chassis. In combination, the drive wheel and the support wheels result in the device being freestanding. The drive wheel projects below the sets of support wheels so that the device is supported by the drive wheel and by only one of each set of support wheels at any given time, thereby establishing a three-point contact with the surface supporting the device. A tiller equipped with controls is pivotably coupled to the drive wheel for pivoting the drive wheel about its vertical axis.申请人：KIME MARK CHANDLER,JOHNSTON RICHARD HARTLEY更多信息请下载全文后查看。
地转偏向力和纬度关系
地转偏向力和纬度关系The Coriolis Effect is the force that causes moving objects on the surface of the Earth to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This phenomenon is an essential component of meteorology and oceanography, influencing the patterns of wind and ocean currents around the globe. The Coriolis Effect is a result of the Earth's rotation on its axis, which causes objects to appear to veer off course when viewed from a non-rotating reference frame.地球转动所造成的科里奥利力是指地球表面上移动物体会在北半球向右偏转，在南半球则向左偏转的力量。
这种现象是气象学和海洋学的重要组成部分，影响着全球风和洋流的模式。
科里奥利力是由地球绕自转轴旋转所造成的，这导致物体在非旋转参考系中被认为出现偏离原来轨道的情况。
One of the factors that affect the strength of the Coriolis Effect is the latitude of the location. As an object moves closer to the poles, the rotation of the Earth becomes more pronounced, leading to a greater deflection caused by the Coriolis Effect. At the equator, where the effect is minimal, objects experience little to no deflection.This geographical relationship between latitude and the Coriolis Effect demonstrates the Earth's dynamic nature and the intricate interplay of physical forces at work.影响科里奥利力强度的因素之一是地点的纬度。
2022英语高考试卷及答案（全国甲卷）
2022英语高考试卷及答案(全国甲卷)高考结束之后，各位考生和家长最想知道的就是考生考的怎么样，这时候考卷跟答案就非常重要了。
下面是小编为大家收集的关于2022英语高考试卷及答案(全国甲卷)。
希望可以帮助大家。
全国甲卷英语试卷及答案2022 年普通高等学校招生全国统一考试英语注意事项：1. 答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2. 回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
3. 考试结束后，将本试卷和答题卡一并交回。
第一部分听力 ( 共两节，满分 30 分 )做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节 ( 共 5 小题 ; 每小题 1.5 分，满分 7.5 分 )听下面 5 段对话。
每段对话后有一个小题，从题中所给的 A 、 B 、C 三个选项中选出最佳选项。
听完每段对话后，你都有 10 秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例：How much is the shirt?A. ?19.15.B. ?9.18.C. ?9.15.答案是C。
1. What does the man want to do?A. Have breakfast.B. Take a walk.C. Call his office.2. What was George doing last night?A. Having a meeting.B. Flying home.C. Working on a project.3. Why does the man suggest going to the park?A. It’s big.B. It’s quiet.C. It’s new.4. How does the woman sound?A. Annoyed.B. Pleased.C. Puzzled.5Where is the man’s table?A. Near the door.B. By the window.C. In the corner.(答案：1-5 BCBAC)第二节 ( 共 15 小题 ; 每小题 1.5 分，满分 22.5 分 )听下面5 段对话或独白。
帮忙搬运重物英语作文
帮忙搬运重物英语作文Title: Assisting with Heavy Lifting: A Guide to Safely Moving Heavy Objects。
Introduction:In our daily lives, there are often situations where we need to assist in moving heavy objects. Whether it's helping a friend relocate or rearranging furniture at home, knowing how to lift and carry heavy items safely is crucial to prevent injuries. In this guide, we will explore the proper techniques and precautions for safely moving heavy objects.1. Assess the Situation:Before attempting to lift a heavy object, it'sessential to assess the situation carefully. Determine the weight of the object and whether it can be safely lifted by you or if additional assistance is needed. Also, assess thepath you'll be taking to move the object and remove any obstacles or hazards that could cause tripping or slipping.2. Use Proper Lifting Techniques:When lifting a heavy object, it's important to use proper lifting techniques to avoid straining your muscles or injuring your back. Follow these steps:Stand with your feet shoulder-width apart, with onefoot slightly in front of the other for balance.Bend your knees and squat down to the level of the object, keeping your back straight.Grasp the object firmly with both hands, using a secure grip.Keep the object close to your body as you lift, using the strength of your legs to power the lift.Lift with your legs, not your back, and avoid twistingyour body while lifting.3. Get Help When Needed:If the object is too heavy to lift safely on your own, don't hesitate to ask for help. Trying to lift a heavy object alone can result in serious injuries. Enlist the assistance of others and use teamwork to move the object safely.4. Use Proper Equipment:In some cases, using specialized equipment can make moving heavy objects much easier and safer. Consider using items such as hand trucks, dollies, or lifting straps to assist with moving large or bulky items. These tools can help distribute the weight more evenly and reduce the risk of injury.5. Take Breaks:Moving heavy objects can be physically demanding, soit's essential to take regular breaks to rest and rehydrate. Listen to your body and don't overexert yourself. If you start to feel fatigued or strained, take a break and allow your muscles to recover before continuing.6. Communicate:Communication is key when moving heavy objects, especially when working with a team. Use clear and concise instructions to coordinate movements and ensure everyone is on the same page. Establish a plan before lifting the object, and communicate any changes or adjustments as needed.Conclusion:By following these tips and techniques, you can safely assist in moving heavy objects without risking injury. Remember to assess the situation, use proper lifting techniques, get help when needed, use proper equipment,take breaks, and communicate effectively. With theseprecautions in mind, you can successfully move heavy objects while minimizing the risk of accidents or injuries.。
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BALARAM R# 586, 2nd Cross,Kuvempu road, Udayanagar,Bangalore – 560 016.Mobile: +91-9740255771.eMail: balram_r@ ObjectiveTo work in a challenging and stimulating environment envisaging personal growth and career development. To be a part of an organization provides an ambience of learning and professional growth. Personal ProfileHands on can do IT professional, with nearly five years of extensive, diverse, results oriented and progressive experience in the field of information technology. Using strong interpersonal and communication skills I can work autonomously or if required from cohesive, focused teams, to produce innovative and creative ways of sharpening competitive edge for the business. My greatest strengths are flexibility, commitment, loyalty and the desire to progress the careers and aspirations of those around me and myself. Skills & ExposureUnix/Solaris/Linux Operating SystemInstallation of Solaris/LinuxConfiguring TCP/IP, DHCP, Samba, Apache, Squid proxyInstalling and configuring VNC on Server and ClientAdministrating, monitoring, troubleshooting Unix/Linux/Windows serversAdministrating remote servers and databases using VPN connectivityManaging, Adding Packages, Patches, SoftwaresMonitoring network activity using tools, commands and utilities, managing process, servicesScheduling jobs, Unix Backup and RecoveryManaging users and groups, Maintaining Diskspace, Mounting devicesAdministrating server activityManaging and troubleshooting FilesystemConfiguring Sendmail on LinuxManaging mail usersMonitoring network activity using tools, commands and utilitiesConfiguring local and network PrintersConfiguring SNMP, NTP, and NFSScripts to monitor server activity and process with different OS platformsConfiguring dual boot with different OS platforms.Jump Start server, Upgrading new devices.Windows Installation of 2000/2003Experienced in the installation, configuration and troubleshooting of MS Exchange 2000/2003 server and client software like Outlook 97, 2000, 2003 and Outlook Express.Enterprise wide installation, configuration and troubleshooting of Microsoft Windows 2000/2003 Network OS and Exchange server 2000/2003.Maintenance and troubleshooting of Windows NT based Networks, Network server, Print Server, File Server, Remote Access Service, Windows Peer-to-peer networking, TCP/IP Configuration, Internet installation and Hardware Maintenance of PCs.Good knowledge in application of virus definition updates, elimination and cleaning of virus from affected machines and application of proper security patch.Assembling, Configuration and Troubleshooting of Desktops.Troubleshooting of hardware, software and network problems.Technical SkillsWindows Operating System : Windows 98/2000/XP/2003Unix Operating System : Solaris 8,10, Hp UX, Ubuntu 6.10, 7.0Linux Operating System : Red Hat 9, AS, ES, Fedora Core 1,2,3,4,5,6Server Operating System : Windows 2000, 2003, SBS 2000, SBS 2003Mail Servers : Microsoft Exchange 2000, 2003Programming Languages : C, C++, etc...Other Technologies : HTML, Dream weaver, Tally, Photoshop etc… Experience ProfilemFormation Software Technologies India Pvt. Ltd., Bangalore.Working for “mFormation Technologies Inc.,” as System Administrator from Jun 2005. mFormation Technologies Inc, as a solutions provider for corporate, is mainly concentrating on server-client and network solutions. This includes system integration, networking, domain installation and configuration etc.Mformation Major Project:1)Mformation India Office Setup (Office Relocation)2)Mformation Malaysia Office Setup (Onsite May 7th 2007)3)Mformation Malaysia Office Setup (Onsite-Office Relocation July 25th 2007)4)Mformation Software Technologies India Pvt Ltd (Delhi Office setup August 28th 2007)Job responsibilities:Complete administration of the field IT supporting users located in different countries office remote control. with specialization in various skills in an appropriate way so as to increase the overall productivity of the company. Support to the end users in troubleshooting and helping the in solving problems in their desktop programs and for the streamline running of the operation.Unix, Linux, Web Logic & Oracle server Administrating:1. Installation of Solaris 8 on both Intel and Sun Boxes (Netra t105, E420R, 280R)2. Creating and Managing users3. Creating and Managing file system4. Updating patches and packages5. Backup and recovery6. Scheduling Jobs7. Monitoring network activity using tools, commands and utilities, managing process, services8. Scripts to monitor server activity and process with different OS platformsWindows Administrating :1)Administrating AD Server, Fileserver, Exchange server Installation & configuring.2)Symantec, Backup & recovery.3)Monitoring network traffic & adjust system parameters to increase system performance4)Blackberry, VPN implementation to users & customers to access network & test on our product.5)Administrating Web Logic Server6)Administrating Oracle Database serverOptimetrix Integrations & Solutions Pvt Ltd, Bangalore.Worked as System Adminsitrator for “Astuto Networks Inc.,” through Optimetrix Integrations & Solutions Pvt Ltd, Bangalore from Jan 2005. Astuto as a solutions provider for corporate, is mainly concentrating on server-client and network solutions. This includes system integration, networking, domaininstallation and configuration etc.Optimetrix Major Project:1)Vennar Soft Systems, B’lore (Onsite)2)Astuto Networks Inc., B’lore (Onsite)Job responsibilities:1)Enterprise wide installation, configuration and troubleshooting of Microsoft Windows 2000/2003Network OS and Exchange server 2000/2003.2)Support to the end users in troubleshooting and helping the in solving problems in their desktopprograms and for the streamline running of the operation.3)Maintenance and troubleshooting of Windows NT based Networks, Network server, Print Server, FileServer, Remote Access Service, Windows Peer-to-peer networking, TCP/IP Configuration, Internet installation and Hardware Maintenance of PCs.Technotech Systems, Bangalore.Worked as Hardware Engineer from June 2002 to May 2004. The company was focused on Hardware Solutions, Sales, Service System, integration, Networking, Domain Installation and Configuration etc.for the Cooperate Company.Job responsibilities:1)Good knowledge in application of virus definition updates, elimination and cleaning of virus fromaffected machines and application of proper security patch.2)Assembling, Configuration and Troubleshooting of Desktops.3)Troubleshooting of hardware, software and network problems.Academic RecordBCA 2nd Year from Annamalai University.Programming & System Management, during the period of 2002.Diploma in Web Designing, BangalorePre-Degree (PDC) from University of Bangalore, during the period of 2001-2002.SSLC from Board of Examinations, Karnataka state 1n 2000.Personal InformationPermanent Address : # 586, 2nd Cross, Kuvempu Road,Udayanagar, Bangalore – 560 016.Phone: +91-80-41260311Mobile: +91-9880588657Date of Birth : 1st Aug 1984.Marital Status : Single.ReferencesMr. Chittur Sreenivasan. Cell: 91-9845168415 Office: +91 08 662 059 903(Vice President of India , mFormation Software Technologirs India Pvt. Ltd.,)Mr. Vijay Kumar. Cell: 91-9845168415 Office: +91-080-25633233(Director, Optimetrix Integration and Solutions Pvt. Ltd.)DeclarationI, Balaram R, hereby declare that above furnished information is authentic to the best of my knowledge.Date: 08th Nov 2007Place: Bangalore (BALARAM R)。