TWI468965B - System and method for checking wiring diagrams - Google Patents

Description

Wiring inspection system and method

The present invention relates to a circuit board wiring system and method, and more particularly to a system and method for inspecting circuit board wiring.

The role of the capacitor in the circuit is mainly energy storage and filtering. Through the process of charge and discharge, it can realize the function of storing energy or filtering out clutter. During the charging and discharging process, the current through the two pins of the capacitor is relatively large, and it is easy to couple and interfere with the signal line between the two pins, thereby affecting the integrity of the signal transmitted by the signal line. In order to maintain good signal transmission quality, in the wiring design, the two pins of the capacitor are usually not used as a design and inspection rule.

The current wiring software cannot check whether there is a signal line between the two pins of the capacitor and needs manual troubleshooting. For the capacitor in SMD (Surface Mounted Devices), the area where the signal line is not suitable is only the wiring layer where the device is located. Therefore, it is easier to check the signal line. However, since the two pins of the plug-in capacitor need to pass through the respective wiring layers of the circuit board, the two pins of the plug-in capacitor are not suitable for the signal line in each wiring layer. Therefore, the use of manual troubleshooting is not only time-consuming and labor-intensive, but also possible missed investigations.

In view of the above, it is necessary to provide a wiring inspection system and method that can automatically detect a signal line passing between two pins of a plug-in capacitor.

A wiring inspection system includes: a loading module for acquiring a circuit board document; an identification module for identifying a capacitance from the circuit board document, and obtaining pin information of each capacitor; a group for filtering the plug-in capacitance from the capacitor according to the pin information; constructing a module for constructing a line segment according to pin information of each plug-in capacitor; and determining a module for using the circuit board document Obtaining path information of each signal line, determining, according to the path information, whether a signal line has an intersection with the constructed line segment; and a list generation module for importing basic information of the signal line having an intersection with the constructed line segment In a list.

A wiring inspection method includes: acquiring a circuit board document; identifying a capacitance therein from the circuit board document, and obtaining pin information of each capacitor; and filtering the plug-in capacitance from the capacitor according to the pin information; Constructing a line segment according to pin information of each plug-in capacitor; obtaining path information of each signal line from the circuit board document, and determining, according to the path information, whether there is a signal line intersecting with the constructed line segment; and The basic information of the signal line with the intersection of the line segments is imported into a list.

Compared with the prior art, the wiring inspection system and method of the present invention can automatically check whether there is a signal line between two pins of each plug-in capacitor in the circuit, which not only saves time and labor, but also does not miss the miss. Happening. In addition, the system and method can timely return the results of the inspection to the wiring personnel, and facilitate the wiring personnel to locate and modify, so that the wiring design meets the design requirements.

1‧‧‧ data processing device

10‧‧‧Wiring inspection system

11‧‧‧Database

12‧‧‧Storage equipment

13‧‧‧ Processor

100‧‧‧Loading module

101‧‧‧ Identification module

102‧‧‧Screening module

103‧‧‧Building module

104‧‧‧Judgement module

105‧‧‧List generation module

106‧‧‧Display module

107‧‧‧ Positioning Module

1 is a schematic diagram of an operating environment of a preferred embodiment of the wiring inspection system of the present invention.

2 is a functional block diagram of a preferred embodiment of the wiring inspection system of the present invention.

Figure 3 is a flow chart showing the operation of the preferred embodiment of the wiring inspection method of the present invention.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments or embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1, a schematic diagram of an operating environment of a preferred embodiment of the wiring inspection system 10 of the present invention is shown. The wiring inspection system 10 operates in the data processing device 1. The data processing device 1 may be a computer, a server or other electronic device having a data processing function.

The data processing device 1 further includes a database 11. A data board file is stored in the database 11. The circuit board document includes wiring information of each wiring layer of the circuit board. The wiring information includes the name of the part, the pin information of the part (such as the type, size, pin position, etc. of the hole where the pin is located), the line length, the line width, the line spacing of the signal line, the path of the signal line, and The connection relationship between the parts, etc.

The wiring inspection system 10 shown in FIG. 2 includes one or more software function modules, such as a load module 100, an identification module 101, a screening module 102, a construction module 103, a determination module 104, and a list generation module. The group 105, the display module 106 and the positioning module 107. The software function modules 100-107 are software blocks having specific functions, are stored in the storage device 12 of the data processing device 1, and are executed by the processor 13 of the data processing device 1. The functions of the software function modules 100 to 107 will be described below with reference to FIG.

Referring to FIG. 3, it is a flowchart of a preferred embodiment of the wiring inspection method of the present invention. . The order of the steps in the flow chart shown in FIG. 3 may be changed according to different requirements, and some steps may be omitted.

In step S10, the loading module 100 acquires a board document from the database 11. As described above, the circuit board document includes wiring information of each wiring layer of the circuit board, such as the name of the component, the pin information of the component, the line length of the signal line, the line width, the line spacing, the path of the signal line, and each The connection relationship between parts, etc.

In step S11, the identification module 101 identifies the capacitance therein according to the part name in the circuit board document.

In step S12, the identification module 101 obtains pin information of each capacitor from the circuit board document, such as the type, size, and pin position of the hole where the pin is located.

In step S13, the screening module 102 filters the plug-in capacitance from the capacitor according to the pin information. Wherein, if the type of the hole of the pin of a certain capacitor is a through hole, the screening module 102 considers the capacitor to be a plug-in capacitor.

In step S14, the building module 103 constructs a line segment according to the size of the hole where the two pins of each plug-in capacitor are located. The size of the holes of the two pins of each plug-in capacitor is the same. It should be understood that, depending on the number of plug-in capacitors, the building block 103 constructs a plurality of line segments, wherein each line segment corresponds to a plug-in capacitor. In this embodiment, the width of the line segment is equal to the length of the diameter of the hole where the pin is located, and the length of the line segment is the same as the length of the line connecting the center points of the holes where the two pins are located.

In step S15, the determining module 104 obtains path information of each signal line from the circuit board document.

In step S16, the determining module 104 determines, according to the path information of the signal line, whether there is a signal line intersecting with the constructed line segment. If there is no intersection with the constructed line segment For the signal line, the flow proceeds to step S17 described below. Otherwise, if there is a signal line having an intersection with the constructed line segment, the flow proceeds to step S18 described below.

In step S17, the display module 106 displays the prompt information of the check pass.

In step S18, the list generation module 105 imports the basic information of the signal line having the intersection with the constructed line segment into a list, and displays the list through the display module 106. The basic information of the signal line includes, but is not limited to, the name of the signal line, the path of the signal line, the name of the plug-in capacitor to which the line segment where the signal line intersects, and the like.

In step S19, the positioning module 107 determines whether a certain signal line in the list is selected. If no signal line is selected, the process ends. Otherwise, if one of the signal lines in the above list is selected, the flow advances to step S20.

In step S20, the positioning module 107 locates the signal line in the circuit board document to facilitate the wiring personnel to modify.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

10‧‧‧Wiring inspection system

100‧‧‧Loading module

101‧‧‧ Identification module

102‧‧‧Screening module

103‧‧‧Building module

104‧‧‧Judgement module

105‧‧‧List generation module

106‧‧‧Display module

107‧‧‧ Positioning Module

Claims (8)

A wiring inspection system includes: a loading module for acquiring a circuit board document; an identification module for identifying a capacitance from the circuit board document, and obtaining pin information of each capacitor; The group is used for filtering the plug-in capacitance from the capacitor according to the above pin information; and constructing a module for constructing a line segment according to the pin information of each plug-in capacitor, wherein the width of the line segment and the hole of the pin are The length of the diameter is equal, the length of the line segment is the same as the length of the line connecting the center points of the holes where the two pins are located; the determining module is configured to obtain the path information of each signal line from the circuit board document, according to the The path information determines whether a signal line has an intersection with the line segment constructed above; and a list generation module is configured to import basic information of the signal line having an intersection with the constructed line segment into a list. The wiring inspection system of claim 1, wherein the circuit board document includes: a name of the part, pin information of the part, and a path of the signal line. The wiring inspection system of claim 1, further comprising: a display module for displaying the list, or displaying the prompt information of the inspection when there is no signal line intersecting with the constructed line segment. The wiring inspection system of claim 1, further comprising: a positioning module, configured to locate the signal line in the circuit board document when a certain signal line in the list is selected. A wiring inspection method includes: acquiring a circuit board document; Identify the capacitors from the above board documents, and obtain the pin information of each capacitor; select the plug-in capacitors from the capacitors according to the above pin information; construct a line segment according to the pin information of each plug-in capacitor, Wherein, the width of the constructed line segment is equal to the length of the diameter of the hole where the pin is located, and the length of the line segment is the same as the length of the line connecting the center point of the hole of the plug capacitor with two pins; obtained from the above board document The path information of each signal line is determined according to the path information, whether there is a signal line intersecting with the constructed line segment; and basic information of the signal line having an intersection with the constructed line segment is imported into a list. The wiring inspection method according to claim 5, wherein the circuit board document includes: a name of the part, pin information of the part, and a path of the signal line. The wiring inspection method according to claim 5, further comprising: displaying the above list; or displaying the prompt information of the inspection when there is no signal line intersecting with the constructed line segment. The method of wiring inspection according to claim 5, further comprising: positioning the signal line in the board document when a certain signal line in the list is selected.