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Description: 一个很好文章，关于pcb缺陷检测的文档，希望对大家有帮助-A very good article on the pcb defect inspection documents, and they hope to have everyone help
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Size: 307200 |
Author: csl |
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Description: pcb缺陷检测 -pcb defect inspection
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Size: 43008 |
Author: mike |
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Description: 用于Ｐａｓ ＰＣＢ网表倒入Ａｌｌｅｇｒｏ ＣＩＳ检查／通道分配的小工具。
文件生成ＶＢＳ，再在ＣＩＳ中导入执行。-For Pas PCB netlist into Allegro CIS Inspection/channel allocation gadget. File Generation VBS, and then import the implementation of the CIS.
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Size: 3072 |
Author: Bomb |
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Description: PCB LAYOUT 检验清单！感谢WWW.LCDHOME.NET网站会员分享-PCB LAYOUT inspection list! Members share appreciation WWW.LCDHOME.NET website
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Size: 184320 |
Author: kingdong |
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Description: 针对现有的PCB（Printed Circuit Board）缺陷视觉检测系统实时性较差，难以检测线宽过窄等问题，首先对 PCB 缺陷图像进行小波变换压缩，提高了系统实时性；然后应用小波边缘检测算法对缺陷图像边缘精确定位，在图像小波变换局部模极大值对应的梯度方向上计算边缘点距离，根据特定规则提取、识别并定位特定缺陷，实验结果表明上述方法简单有效。-For the existing PCB (Printed Circuit Board) real-time visual inspection system for defects is poor, difficult to detect a narrow line width and other issues, first of all defects on the PCB image compression using wavelet transform and improve the system real time and then apply the wavelet edge detection algorithm precise location of the defect edge in the wavelet transform and local maxima correspond to the gradient direction of edge points to calculate the distance, according to a specific rule extraction, to identify and target specific defects, experimental results show that the method is simple and effective.
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Size: 134144 |
Author: 李瑶 |
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Description: PCB中各个设计阶段（设计前、设计中、设计后）的一些checklist检查事项。-PCB in each design phase (design, the design, after the design) of some of the inspection checklist items.
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Size: 28672 |
Author: hh |
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Description: 电子行业常常会用到PCB,在生产中肯定避免不了需要对其进行测试检验,程序是对PCB短路及开路测试二开发.-The electronics industry is often used in the PCB production certainly can not avoid the need to conduct testing and inspection procedures PCB short circuit and open circuit test two development.
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Size: 374784 |
Author: human |
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Description: 详细描述了电路板设计投产时，PCB的检查确认顺序，及其注意事项，是作为规范性质的说明文件-A detailed description of the inspection when the circuit board design specification
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Size: 20480 |
Author: 余明 |
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Description: PCB板的AOI检测和加工零件类的方式和视频的彩色滤光片调节方式的目测，笔记本自带的摄像头，可以开始按钮来设置摄像机测试-PCB board AOI testing and visual inspection of machined parts class manner and video color filters adjust the way, the notebook comes with the camera can be the Start button to set the video camera test
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Size: 6108160 |
Author: 曾 祥 |
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Description: 进程调度算法：采用最高优先数优先的调度算法（即把处理机分配给优先数最高的进程）和先来先服务算法。
每个进程有一个进程控制块（ PCB）表示。进程控制块可以包含如下信息：进程名、优先数、到达时间、需要运行时间、已用CPU时间、进程状态等等。
进程的优先数及需要的运行时间可以事先人为地指定（也可以由随机数产生）。进程的到达时间为进程输入的时间。进程的运行时间以时间片为单位进行计算。每个进程的状态可以是就绪 W（Wait）、运行R（Run）、或完成F（Finish）三种状态之一。就绪进程获得 CPU后都只能运行一个时间片。用已占用CPU时间加1来表示。
每进行一次调度程序都打印一次运行进程、就绪队列、以及各个进程的 PCB，以便进行检查。(Process scheduling algorithm: the highest priority number of priority scheduling algorithm (that is, the processor is assigned to the highest priority process) and first come first service algorithm.
Each process has a process control block (PCB) representation. Process control blocks can contain the following information: process name, priority number, arrival time, run time, CPU time, process status, and so on.
The priority number of the process and the required run time can be specified artificially (or by random numbers). The process's arrival time is the process's input time. The running time of a process is calculated as a time slice. The state of each process can be one of the three states of ready W (Wait), running R (Run), or completion of F (Finish). Once the ready process gets CPU, it can only run one time slice. Represented by taking CPU time plus 1.
Each time the scheduler prints a run, a ready queue, and the PCB of each process for inspection.)
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Size: 1024 |
Author: 寒修末
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Description: 一种对PCB电路板的设计，可实现电子元器件自动插装或贴装、自动焊锡、自动检测(The design of a PCB circuit board can realize automatic insertion and mounting of electronic components, automatic soldering and automatic inspection)
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Size: 449536 |
Author: Grace_jq
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Description: 进程调度算法：采用最高优先数优先的调度算法（即把处理机分配给优先数最高的进程）和先来先服务算法。 每个进程有一个进程控制块（ PCB）表示。进程控制块可以包含如下信息：进程名、优先数、到达时间、需要运行时间、已用CPU时间、进程状态等等。 进程的优先数及需要的运行时间可以事先人为地指定（也可以由随机数产生）。进程的到达时间为进程输入的时间。进程的运行时间以时间片为单位进行计算。每个进程的状态可以是就绪 W（Wait）、运行R（Run）、或完成F（Finish）三种状态之一。就绪进程获得 CPU后都只能运行一个时间片。用已占用CPU时间加1来表示。 每进行一次调度程序都打印一次运行进程、就绪队列、以及各个进程的 PCB，以便进行检查。(Process scheduling algorithm: the highest priority number of priority scheduling algorithm (that is, the processor is assigned to the highest priority process) and first come first service algorithm. Each process has a process control block (PCB) representation. Process control blocks can contain the following information: process name, priority number, arrival time, run time, CPU time, process status, and so on. The priority number of the process and the required run time can be specified artificially (or by random numbers). The process's arrival time is the process's input time. The running time of a process is calculated as a time slice. The state of each process can be one of the three states of ready W (Wait), running R (Run), or completion of F (Finish). Once the ready process gets CPU, it can only run one time slice. Represented by taking CPU time plus 1. Each time the scheduler prints a run, a ready queue, and the PCB of each process for inspection.)
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Size: 238592 |
Author: yyyyyyyzh
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