CN102955868A - Wiring check system and method - Google Patents
Wiring check system and method Download PDFInfo
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- CN102955868A CN102955868A CN 201110252589 CN201110252589A CN102955868A CN 102955868 A CN102955868 A CN 102955868A CN 201110252589 CN201110252589 CN 201110252589 CN 201110252589 A CN201110252589 A CN 201110252589A CN 102955868 A CN102955868 A CN 102955868A
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Abstract
本发明提供一种布线检查系统,应用于计算装置。该系统提供用户界面供用户设置PCB布线图文件中的电线与电源贯孔的标准距离,并于该用户界面的提供的第一显示区域显示PCB布线图文件中所有电源线的名称。该系统还接收用户选择的电源线,并从PCB布线图文件中查找出该电源线经过的所有电源贯孔,及查找出与各电源贯孔的距离小于所述标准距离的电线线段。本发明还提供一种布线检查方法。
The invention provides a wiring inspection system, which is applied to a computing device. The system provides a user interface for the user to set the standard distance between the wires in the PCB layout file and the power through hole, and displays the names of all the power lines in the PCB layout file in the first display area of the user interface. The system also receives the power line selected by the user, and finds out all the power through holes that the power line passes through from the PCB wiring diagram file, and finds out the wire segment whose distance from each power through hole is smaller than the standard distance. The invention also provides a wiring inspection method.
Description
技术领域 technical field
本发明涉及一种电路检查系统及方法,尤其是关于一种布线检查系统及方法。The invention relates to a circuit inspection system and method, in particular to a wiring inspection system and method.
背景技术 Background technique
在印刷电路板的布线过程中,电源调节器(volatage regulator)引伸出来的电源线的瞬间电压切换(dv/dt),经过贯孔时产生之瞬变电流,对邻近信号线造成干扰幅度较大之耦合噪声,严重影响信号完整性。为了防止电源贯孔附近的耦合干扰,信号线与电源贯孔应当保持一定距离。目前,信号线与电源贯孔之间的检查依赖于人工方式逐一在布线图中选取电源线以确定电源贯孔得到该电源贯孔与周围信号线的距离。由于电路板上布线数目巨大,手动操作不仅费时费力,而且容易由于设计人员的疏忽导致遗漏、出错。During the wiring process of the printed circuit board, the instantaneous voltage switching (dv/dt) of the power line drawn from the power regulator (volatage regulator), and the transient current generated when passing through the through hole, cause large interference to the adjacent signal line The coupled noise seriously affects the signal integrity. In order to prevent coupling interference near the power through hole, a certain distance should be kept between the signal line and the power through hole. At present, the inspection between the signal line and the power through hole relies on manually selecting the power line one by one in the wiring diagram to determine the power through hole to obtain the distance between the power through hole and the surrounding signal lines. Due to the huge number of wiring on the circuit board, manual operation is not only time-consuming and laborious, but also prone to omissions and errors due to the negligence of designers.
发明内容 Contents of the invention
鉴于以上内容,有必要提出一种布线检查系统及方法,可以快速、准确地筛选出布线图中与电源贯孔距离不满足要求的电线,防止穿过电源贯孔的电源线对附近的电线造成耦合干扰。In view of the above, it is necessary to propose a wiring inspection system and method, which can quickly and accurately screen out the wires in the wiring diagram that do not meet the distance from the power supply through hole, and prevent the power line passing through the power supply through hole from causing damage to nearby wires. Coupling interference.
一种布线检查系统,该系统包括:读取模块,用于从计算装置的存储器中读取印刷电路板PCB布线图文件;设置模块,用于接收用户于该系统提供的用户界面上输入的PCB布线图文件中的电线与电源贯孔的标准距离;显示模块,用于于该用户界面的提供的第一显示区域显示PCB布线图文件中所有电源线的名称供用户选择一条电源线;及检查模块,用于从PCB布线图文件中查找出该电源线经过的所有电源贯孔,并查找出与各电源贯孔的距离小于所述标准距离的电线线段。A wiring inspection system, the system includes: a reading module, used to read a printed circuit board PCB wiring diagram file from a memory of a computing device; a setting module, used to receive a PCB inputted by a user on a user interface provided by the system The standard distance between the wires in the wiring diagram file and the power supply through hole; the display module is used to display the names of all power lines in the PCB wiring diagram file in the first display area provided by the user interface for the user to select a power line; and check The module is used to find out all the power through-holes that the power line passes through from the PCB wiring diagram file, and find out the wire segment whose distance from each power through-hole is smaller than the standard distance.
一种布线检查方法,该方法包括:(A)从计算装置的存储器中读取印刷电路板PCB布线图文件;(B)接收用户于用户界面上输入的PCB布线图文件中的电线与电源贯孔的标准距离;(C)于该用户界面的提供的第一显示区域显示PCB布线图文件中所有电源线的名称供用户选择一条电源线;及(D)从PCB布线图文件中查找出该电源线经过的所有电源贯孔,并查找出与各电源贯孔的距离小于所述标准距离的电线线段。A wiring inspection method, the method comprising: (A) reading a PCB wiring diagram file of a printed circuit board from a memory of a computing device; The standard distance of the hole; (C) display the names of all power lines in the PCB wiring diagram file in the first display area provided by the user interface for the user to select a power line; and (D) find out the power line from the PCB wiring diagram file All the power supply through-holes that the power supply wires pass through, and find out the wire segment whose distance from each power supply through-hole is less than the standard distance.
相较于现有技术,本发明所提供的布线检查系统及方法可以快速、准确地筛选出布线图中与电源贯孔距离不满足要求的电线,防止穿过电源贯孔的电源线对附近的电线造成耦合干扰。Compared with the prior art, the wiring inspection system and method provided by the present invention can quickly and accurately screen out the wires whose distance from the power supply through hole in the wiring diagram does not meet the requirements, and prevent the wires near the power line pair passing through the power supply through hole. Wires cause coupling interference.
附图说明 Description of drawings
图1是本发明布线检查系统较佳实施例的应用环境图。FIG. 1 is an application environment diagram of a preferred embodiment of the wiring inspection system of the present invention.
图2是本发明布线检查系统较佳实施例的功能模块图。Fig. 2 is a functional block diagram of a preferred embodiment of the wiring inspection system of the present invention.
图3是本发明布线检查方法较佳实施例的流程图。Fig. 3 is a flowchart of a preferred embodiment of the wiring inspection method of the present invention.
图4(I)是查找与电源贯孔的距离小于预设标准距离的电线线段的示意图。FIG. 4(I) is a schematic diagram of finding a wire segment whose distance from the power through hole is less than a preset standard distance.
图4(II)是在布线图文件中定位用户选择的电源贯孔(或电线线段)及与该电源贯孔(或电线线段)的距离小于所述标准距离的电线线段(或电源贯孔)。Fig. 4 (II) locates the power supply through hole (or wire line segment) selected by the user in the wiring diagram file and the wire line segment (or power supply through hole) whose distance from the power supply through hole (or wire line segment) is less than the standard distance .
主要元件符号说明Description of main component symbols
如下具体实施方式将结合上述附图进一步说明本发明。The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.
具体实施方式 Detailed ways
参阅图1所示,是本发明布线检查系统10较佳实施例的应用环境图。该布线检查系统10应用于计算装置100。该计算装置100还包括处理器20、存储器30、显示器40及印刷电路板(printed circuit board,PCB)布线图文件50。该布线检查系统10用于检查PCB布线图文件50中的与电源贯孔之间的距离不满足布线要求的电线,以防止穿过电源贯孔的电源线对附近的电线造成耦合干扰。PCB一般由多层电路板组成,例如信号层、电源层、接地层。贯孔是指导通PCB上不同层面的孔,电源贯孔指的是电源线穿过的孔。所述电线包括除穿过该电源贯孔的电源线之外的所有电源线、信号线、地线等各种类型的布线。电源线系指PCB上传输电流的电线,信号线系指PCB上传输信号的电线。Referring to FIG. 1 , it is an application environment diagram of a preferred embodiment of the
存储器30用于储存PCB布线图文件50及布线检查系统10的程序化代码。该存储器30可以为智能媒体卡(smart mediacard)、安全数字卡(secure digital card)、快闪存储器卡(flash card)等储存设备。The
处理器20用于执行布线检查系统10的程序化代码,提供布线检查系统10的上述功能。The
显示器40用于显示所述PCB布线图文件50,并显示布线检查系统10提供的用户界面供用户从PCB布线图文件50选择需要检查的电源线及设置检查参数,以及显示检查结果。The
参阅图2所示,是本发明布线检查系统10较佳实施例的功能模块图。该布线检查系统10包括读取模块11、设置模块12、选择模块13、检查模块14、显示模块15及定位模块16。以下结合图3说明模块11~16的功能。Referring to FIG. 2 , it is a functional block diagram of a preferred embodiment of the
参阅图3所示,是本发明布线检查方法较佳实施例的流程图。根据不同的需求,该流程图中步骤的顺序可以改变,某些步骤可以省略,例如步骤S309及S311。Referring to FIG. 3 , it is a flow chart of a preferred embodiment of the wiring inspection method of the present invention. According to different requirements, the order of the steps in the flowchart can be changed, and some steps can be omitted, such as steps S309 and S311.
步骤S301,读取模块11从存储器30中读取PCB布线图文件50。Step S301 , the reading module 11 reads the
步骤S303,设置模块12接收用户于该布线检查系统10提供的用户界面上输入的PCB布线图文件50中的电线与电源贯孔的标准距离d,例如d=40mil。1mil等于千分之一英寸。如上所述,所述电线包括除穿过该电源贯孔的电源线之外的所有电源线、信号线、地线等各种类型的布线。电源线系指PCB上传输电流的电线,信号线系指PCB上传输信号的电线。Step S303 , the
步骤S305,显示模块15在该用户界面提供的第一显示区域显示PCB布线图文件50中所有电源线的名称,选择模块13接收用户选择的一条电源线。用户也可以一次选择多条电源线。In step S305, the
步骤S307,检查模块14从PCB布线图文件50中查找出该电源线经过的所有电源贯孔,并查找出与各电源贯孔的距离小于所述标准距离的电线线段。例如,如图4(I)所示,圆环A1表示一个电源贯孔,以该电源贯孔中心点为圆心,标准距离(例如d=40mil)为半径生成一个圆(图4(I)中以虚拟线表示),则PCB布线图文件50中所有落入该圆内的信号线段与该电源贯孔的距离均小于所述标准距离。这里生成的圆不限于该电源贯孔所在的电路板层面,也可以是与该电源贯孔所在的电路板层面垂直的平面,以便于从穿过不同电路板层面的电线中查找出与该电源贯孔的距离均小于所述标准距离的电线。PCB上的一条电线,例如信号线,可能由多个线段组成,同一条电线上的不同线段与相同电源贯孔的距离可能不同。In step S307, the
步骤S309,显示模块15在该用户界面提供的第二区域显示查找到的每个贯孔的坐标及电线线段的名称。In step S309, the
步骤S311,选择模块13接收用户从该第二区域选择的一个电源贯孔(或一条电线线段),定位模块16跳转到PCB布线图文件50中定位该选择的电源贯孔(或电线线段)及与该贯孔(或电线线段)的距离小于所述标准距离的电线线段(或电源贯孔),以提示用户修改该电线线段的布线设计。例如,假设用户从该第二区域选择一条信号线段L1,如图4(II)所示,定位模块16跳转到布线图文件50中以高亮的方式定位该信号线段L1及与该信号线段L1的距离小于所述标准距离的电源贯孔A5。Step S311, the
步骤S313,检查模块14检查PCB布线图文件50中是否还有电源线未被选择。若还有其它电源线未被选择,则返回步骤S305,若所有电源线都被选择过,则流程结束。In step S313, the
最后应说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或等同替换,而不脱离本发明技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements can be made without departing from the spirit and scope of the technical solutions of the present invention.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107728037A (en) * | 2016-08-11 | 2018-02-23 | 英业达科技有限公司 | Power signal lines check device and method |
CN107729584A (en) * | 2016-08-11 | 2018-02-23 | 英业达科技有限公司 | Signal line check device and method |
CN112765930A (en) * | 2021-01-18 | 2021-05-07 | 广州市奥威亚电子科技有限公司 | Method, device, equipment and storage medium for checking circuit schematic diagram |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107728037A (en) * | 2016-08-11 | 2018-02-23 | 英业达科技有限公司 | Power signal lines check device and method |
CN107729584A (en) * | 2016-08-11 | 2018-02-23 | 英业达科技有限公司 | Signal line check device and method |
CN112765930A (en) * | 2021-01-18 | 2021-05-07 | 广州市奥威亚电子科技有限公司 | Method, device, equipment and storage medium for checking circuit schematic diagram |
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