逻辑单元

The inspection unit includes storing unit, logic switching unit and drive change-over switch, inspects whether the storing unit is normal via detecting the edge change, sets the output of abnormal storing unit in certain logic level and performs different logic operations to different logic level setting values.

检验装置包括储存单元、资料切换开关与边缘探测器。其是以边缘变化是否正确来检验储存单元的运作是否正常，并将出现问题的储存单元的输出设定在一固定的逻辑电位上，再对不同逻辑电位设定值使用不同的逻辑运算。

It is also configured for all 3 input logic and some logic between 4 and 7 input,and used for general combinational logic.

该单元还能实现全部 3输入逻辑和部分 4～ 7输入逻辑，也是一种满足通用逻辑应用的结构。

Then, on the basis of the functional verification, the system architectures of the radio frequency analog front end and the control logic circuit for the passive UHF RFID transponder are studied and designed with low-power design techniques. The RF AFE circuit includes rectifier, matching network, backscatter, regulator, AM demodulator, voltage reference, local oscillator and power on reset circuit, and so on. The control logic circuit contains clock synchronization module, decoding module, coding module, cyclic redundancy checksum module, power management unit, control unit, shift register and memory.

然后，在功能验证的基础上，重点研究了无源超高频射频识别标签芯片射频模拟前端电路和控制逻辑电路的系统架构，并采用低功耗设计技术对其进行了设计，射频模拟前端电路设计包括了整流器、匹配网络、反向散射电路、稳压器、AM解调器、电压参考源、本地振荡器以及上电复位电路等，控制逻辑电路设计包括了时钟同步模块、解码模块、编码模块、CRC校验模块、功率管理单元、控制单元、移位寄存器和存储器等。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Logical process unit of ATP system is fail safe: In case of failure, Logical unit of ATP process must put all outputs in safe state

ATP 系统逻辑处理单元是故障安全的： ATP 系统逻辑处理单元失效后，所有输出必须保持在安全状态。

So here's the deal: If a computer can run each macro instruction as several micro-instructions then it can translate the 32/64/128-bit instructions into their equivalent 8-bit instructions and cascade them horizontally to produce the same result as a G4/G5-series instruction set using less power than it would take to do the same thing on the original G4-series processor.

需要注意到那个起中控作用的PowerPC内核，它是用来协调所有处理单元的工作的。就目前的技术来说，我想每个处理单元的任务应该是根据所要处理的任务事先hardcode的。也许将来，能够在运行时，根据所处理的具体任务实时决定每个处理单元的运行逻辑，就像transmeta所宣传的那样，那就非常非常的动态了。

The principle of system design is as follows: At first, compartmentalizing the arithmetic of sterovision measurement. We use FPGA logic units Customized hardware blocks to implement the arithmetic which is simple and large data-computing, and the data is transferred on pipeline between each blocks, otherwise, use software program in NiosⅡ to implement the complicated and small data-computing arithmetic. So the system is high-speed and flexible.

系统设计的基本思想如下：首先针对视觉测量算法进行划分，对算法简单、数据处理量大的部分用 FPGA逻辑单元自定义硬件模块的方法实现，各硬件模块之间数据采取流水线操作；算法复杂、数据处理量小的部分则在 Nios II软核中用软件的方法实现，从而使本系统既具速度优势又具良好的灵活性。

This architecture is based on ISO/IEC 18000-6C and targeted at ultra-low power consumption. By applying methods like system-level power management, global clock gating and low voltage implementation, the total power of the design is reduced to a few microwatts.

通过采用系统级功耗管理，全局钟控，行波计数器以及低阈值低电压逻辑单元等策略，设计功耗最终控制在0.35 μm工艺下的18.6 μw，并可通过仿真在0.18 μm工艺下进一步优化到7 μw左右。

His problem can be solved by adopting parameter configuring and TPCR model. The TPCR IP core is made up of the padded delay cell and re-synchronization cell. The padded delay cell specifies and restricts the interface timing of the IP core, making it possible for the SOC designers to estimate the margin of the interface timing at every design stage and making the IP core integrated in SOC seamlessly without the glued logic. The re-synchronization cell bridges different clock domains and asynchronous signals, ensuring that IP core carries out the transfer of the asynchronous signals.

PCR IP核模型由弹性延迟单元和再同步单元组成，其中，弹性延迟单元规范了IP核的接口时序约束，使得SOC集成者能够在设计的各个阶段，估算IP核的时序裕度，并能够在集成时无缝集成到SOC中而无需加入粘合逻辑；而再同步单元增加了IP核接口在不同时钟域和异步信号之间的桥接功能，保证IP核能够可靠地完成异步数据的传输。

The on-board module is connected with the existing safety detection devices such as TCU, LCU and TAX box, through the serial interface bus, and realizes integrated data collection from electric apparatus and control system. The intercommunication platform between the locomotive and the ground is established based on the BEIDOU satellite and GPRS system; the former is used for distant communicating while the latter is used for massive communicating. The design of the ground supervision system is fulfilled.

制定了车载单元的串口总线协议，车载主控单元通过串口总线连接机车的微机控制柜、逻辑控制单元和TAX箱等现有独立的安全检测设备，实现对机车电器部件和控制系统运用状态信息的综合数据采集；综合采用北斗卫星通信和GPRS移动通信技术构建了机车与地面之间的双向数据通信平台，前者解决了在偏远地区的数据传输问题，后者解决了机车运用状态信息的大数据量传输问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。