CN111274759B - Electromagnetic field solving method and device and storage medium - Google Patents
Electromagnetic field solving method and device and storage medium Download PDFInfo
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- CN111274759B CN111274759B CN202010111125.7A CN202010111125A CN111274759B CN 111274759 B CN111274759 B CN 111274759B CN 202010111125 A CN202010111125 A CN 202010111125A CN 111274759 B CN111274759 B CN 111274759B
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Abstract
The embodiment of the application discloses an electromagnetic field solving method, an electromagnetic field solving device and a storage medium, wherein the method comprises the following steps: identifying a solving port from the printed circuit board layout; identifying an associated element with the highest association with the solving port from the printed circuit board layout, and acquiring the position distance between the solving port and the associated element; determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as the center; and carrying out electromagnetic field solving on the solving area.
Description
Technical Field
The embodiment of the application relates to the technical field of electronics, in particular to an electromagnetic field solving method and device and a storage medium.
Background
When designing electronic products such as mobile phones, tablets, computers and the like, the requirements of various functions of users are met, and electromagnetic compatibility of the products is considered. Electromagnetic compatibility is one of the main performances of electronic equipment, and is an important guarantee that the performance of the electronic equipment can be fully exerted. Therefore, it is indispensable to study the electromagnetic field distribution of a printed circuit board (Printed Circuit Board, PCB) in an electronic device.
At present, when electromagnetic field solution is performed on a printed circuit board, equal division grid division is generally performed, as shown in fig. 1, and simulation software can be used for performing grid division on a layout diagram of the printed circuit board according to a regular quadrangle. In addition, as shown in fig. 2, the printed circuit board layout may be further meshed in a triangle by using simulation software.
However, under the conditions that the area of the printed circuit board is large and the electromagnetic field solving precision is high, a large number of grid areas need to be divided, so that the electromagnetic field solving time is long and the efficiency is low.
Disclosure of Invention
The embodiment of the application provides an electromagnetic field solving method, an electromagnetic field solving device and a storage medium, wherein important solving areas are selected from a printed circuit board layout diagram to carry out electromagnetic field solving, so that the electromagnetic field solving time is shortened and the electromagnetic field solving efficiency is improved under the condition that the electromagnetic field solving effect is ensured.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides an electromagnetic field solving method, which comprises the following steps:
identifying a solving port from the printed circuit board layout;
identifying an associated element with the highest association with the solving port from the printed circuit board layout, and acquiring the position distance between the solving port and the associated element;
determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as a center;
and carrying out electromagnetic field solving on the solving area.
In the electromagnetic field solving method, the identifying the solving port from the printed circuit board layout comprises:
receiving a port instruction;
and determining the component port indicated by the port instruction in the printed circuit board layout as the solving port.
In the electromagnetic field solving method, the identifying, from the printed circuit board layout, the correlation element having the largest correlation with the solving port includes:
identifying a capacitance closest to the solving port from the printed circuit board layout;
the capacitance is determined as the associated element.
In the electromagnetic field solving method, the determining the solving area from the printed circuit board layout based on the position distance by taking the solving port as a center includes:
obtaining a distance parameter;
determining a target distance according to the distance parameter and the position distance;
the solving port is taken as the center, the target distance is the distance from the solving port to each vertex, and a regular polygon area is determined from the printed circuit board layout;
and determining the regular polygon area as the solving area.
In the electromagnetic field solving method, the electromagnetic field solving the solving area includes:
dividing the solving area into a plurality of subareas;
and respectively carrying out electromagnetic field solving on each sub-region in the plurality of sub-regions to obtain a plurality of electromagnetic field results.
An embodiment of the present application provides an electromagnetic field solving apparatus, including:
the port identification module is used for identifying a solving port from the printed circuit board layout diagram;
the distance acquisition module is used for identifying an associated element with the highest association with the solving port from the printed circuit board layout diagram and acquiring the position distance between the solving port and the associated element;
the area determining module is used for determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as a center;
and the area solving module is used for carrying out electromagnetic field solving on the solving area.
In the electromagnetic field solving device, the port identification module is specifically configured to receive a port instruction; and determining the component port indicated by the port instruction in the printed circuit board layout as the solving port.
In the electromagnetic field solving device, the distance obtaining module is specifically configured to identify, from the printed circuit board layout, a capacitance closest to the solving port; the capacitance is determined as the associated element.
In the electromagnetic field solving device, the area determining module is specifically configured to obtain a distance parameter; determining a target distance according to the distance parameter and the position distance; the solving port is taken as the center, the target distance is the distance from the solving port to each vertex, and a regular polygon area is determined from the printed circuit board layout; and determining the regular polygon area as the solving area.
In the electromagnetic field solving device, the area solving module is specifically configured to divide the solving area into areas to obtain a plurality of sub-areas; and respectively carrying out electromagnetic field solving on each sub-region in the plurality of sub-regions to obtain a plurality of electromagnetic field results.
The embodiment of the application provides an electromagnetic field solving device, which comprises a processor, a memory and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor is configured to execute an electromagnetic field solution program stored in the memory, so as to implement the electromagnetic field solution method.
Embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the electromagnetic field solving method described above.
The embodiment of the application provides an electromagnetic field solving method, which comprises the following steps: identifying a solving port from the printed circuit board layout; identifying an associated element with the highest association with the solving port from the printed circuit board layout, and acquiring the position distance between the solving port and the associated element; determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as the center; and carrying out electromagnetic field solving on the solving area. According to the technical scheme provided by the embodiment of the application, the important solving area is selected from the layout diagram of the printed circuit board to carry out electromagnetic field solving, so that the electromagnetic field solving time is shortened and the electromagnetic field solving efficiency is improved under the condition that the electromagnetic field solving effect is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a region division provided in the prior art;
FIG. 2 is a schematic diagram of a region division scheme II provided in the prior art;
FIG. 3 is a schematic flow chart of an electromagnetic field solving method according to an embodiment of the present application;
FIG. 4 is a schematic diagram of partitioning of an exemplary solution area provided by embodiments of the present application;
FIG. 5 is a schematic diagram of partitioning of an exemplary sub-region provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electromagnetic field solving device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram II of an electromagnetic field solving device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The embodiment of the application provides an electromagnetic field solving method which is realized through an electromagnetic field solving device. The electromagnetic field solving device may be a terminal such as a computer, and the embodiment of the application is not limited. Fig. 3 is a flow chart of an electromagnetic field solving method according to an embodiment of the present application. As shown in fig. 3, the electromagnetic field solving method mainly includes the following steps:
s101, identifying a solving port from the layout diagram of the printed circuit board.
In an embodiment of the present application, the electromagnetic field solving means may identify the solving port from the printed circuit board layout.
It should be noted that, in the embodiment of the present application, the electromagnetic field solving apparatus may actually perform the step of importing before identifying the solving port, so as to import the printed circuit board layout into the electromagnetic field solving apparatus. Of course, the printed circuit board layout may also be pre-stored in the electromagnetic field solver, and obtained by the electromagnetic field solver through other interaction means or autonomously. Sources of specific printed circuit board layouts are not limited in this application
It will be appreciated that in the embodiments of the present application, the printed circuit board layout includes information such as the placement location, pins, and wiring of the components on the printed circuit board, which is actually a layout of the printed circuit board hardware, and may implement specific functions. The specific printed circuit board layout is not limited in this embodiment.
Specifically, in an embodiment of the present application, an electromagnetic field solving apparatus identifies a solving port from a printed circuit board layout, including: receiving a port instruction; and determining the component port indicated by the port instruction in the printed circuit board layout as a solution port.
In the embodiment of the present application, the electromagnetic field solving device may be configured with a touch interaction interface or other specific interaction devices, so that a user may send, to the electromagnetic field solving device, a port instruction for instructing to solve a port through operations such as touch operation or key selection. After receiving the port command, the electromagnetic field solving device can determine the component port indicated by the port command in the printed circuit board layout, for example, a certain pin of a certain component as a solving port. In effect, the solving ports are the more important component pins that the user determines based on the deployment of components and traces on the printed circuit board layout. The specific solving port is selected according to the layout of the printed circuit board layout chart, and the embodiment of the application is not limited.
In the embodiment of the present application, besides the solving port specified by the user, the electromagnetic field solving device may analyze the printed circuit board by using a specific analysis mode, so as to autonomously determine the solving port. The specific identification manner of the solving port is not limited in the embodiment of the present application.
S102, identifying an associated element with the highest association with the solving port from the printed circuit board layout diagram, and acquiring the position distance between the solving port and the associated element.
In the embodiment of the application, after the solving means identifies the solving port from the printed circuit board layout, further, the correlation element with the highest correlation with the solving port is identified from the printed circuit board layout, and the position distance between the solving port and the correlation element is obtained.
Specifically, in an embodiment of the present application, an electromagnetic field solving apparatus identifies, from a printed circuit board layout, an associated element having a maximum association with a solving port, including: identifying the capacitance closest to the solving port from the printed circuit board layout; the capacitance is determined as the associated element.
It will be appreciated that in the embodiments of the present application, the capacitance most affecting the solving port is the capacitance closest thereto, and therefore, the electromagnetic field solving device may automatically search for the capacitance closest to the periphery thereof with the solving port as the center, thereby serving as the correlation element.
In the embodiment of the present application, because of the differences between the components and the wirings with respect to the layout diagrams of different printed circuit boards, the solution ports actually selected by the user may also have differences, and correspondingly, the associated components with the largest relevance corresponding to the different solution ports are also different. In the printed circuit board layout, the capacitor closest to the solving port is taken as the correlation element, and of course, other elements can be selected as the correlation elements according to the measurement standard of the actual set correlation.
It is understood that in the embodiment of the present application, the electromagnetic field solving means uses the capacitance closest to the solving port as the associated element, and accordingly, the electromagnetic field solving means obtains the position distance between the solving port and the associated element, that is, obtains the position distance between the solving port and the capacitance closest thereto. The specific solution port and associated element positional distances are not limited in this embodiment.
S103, determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as the center.
In the embodiment of the application, after obtaining the solving port and the position distance between the seven ports and the associated element, the electromagnetic field solving device may further determine the solving area from the printed circuit board layout diagram based on the position distance with the solving port as a center.
Specifically, in the embodiment of the present application, the electromagnetic field solving device uses a solving port as a center, and determines a solving area from a printed circuit board layout based on a position distance, including: obtaining a distance parameter; determining a target distance according to the distance parameter and the position distance; taking the solving port as the center, and determining a regular polygon area from the printed circuit board layout by taking the target distance as the distance from the solving port to each vertex; the regular polygon area is determined as a solution area.
It should be noted that, in the embodiment of the present application, the electromagnetic field solving device stores a preset distance parameter. The distance parameter is used for measuring the area range centering on the solving port in the process of determining the solving area. The specific distance parameter may be preset according to actual requirements or user experience, which is not limited in the embodiment of the present application.
In the embodiment of the application, through repeated verification of a large number of experiments, when the distance parameter is set to be 1.5, the solution accuracy and the solution time of the determined solution area in solution can be well balanced, so that the distance parameter can be set to be 1.5 preferentially.
In the embodiment of the present application, the electromagnetic field solving means may determine the product of the distance parameter and the position distance as the target distance. For example, the distance parameter is 1.5, the position distance is D, and the corresponding target distance is 1.5D.
In the embodiment of the present application, the electromagnetic field solving device uses the solving port as the center, the target distance is the distance from the solving port to each vertex, and the regular polygon area is determined from the printed circuit board layout, where the regular polygon area may be a regular quadrilateral area or a regular hexagon area. The number of sides of the specific regular polygon area can be preset according to actual requirements, and the embodiment of the application is not limited.
Fig. 4 is a schematic diagram illustrating the division of an exemplary solution area according to an embodiment of the present application. As shown in fig. 4, in the embodiment of the present application, for a printed circuit board layout, the electromagnetic field solving device uses the solving port as a center, the target distance is the distance from the solving port to each vertex, and a regular hexagonal area is determined, so that the regular hexagonal area is the solving area. In addition, the area outside the solution area in the printed circuit board layout can be determined as a non-solution area.
S104, carrying out electromagnetic field solving on the solving area.
In the embodiment of the application, the electromagnetic field solving device can perform electromagnetic field solving on the solving area after determining the solving area.
Specifically, in an embodiment of the present application, an electromagnetic field solving apparatus performs electromagnetic field solving on a solving area, including: dividing the solving area into a plurality of subareas; and respectively carrying out electromagnetic field solution on each sub-region in the plurality of sub-regions to obtain a plurality of electromagnetic field results.
In the embodiment of the present application, after obtaining the solution area, the electromagnetic field solution device may divide the solution area according to a preset area division manner, for example, divide the solution area equally by using a regular triangle, so as to determine each divided small area as a sub-area, and obtain a plurality of sub-areas. The specific division manner of the solving area is not limited in the embodiment of the present application.
Fig. 5 is a schematic diagram of division of an exemplary sub-region according to an embodiment of the present application. As shown in fig. 5, in the embodiment of the present application, the solution area is a regular hexagonal area, and in this area, the electromagnetic field solution device may divide it in regular triangles, so that each regular triangle area is determined as one sub-area.
It should be noted that, in the embodiment of the present application, the electromagnetic field solving device will respectively solve the electromagnetic field for each sub-region in the solving region, so as to obtain a corresponding electromagnetic field result, thereby finally obtaining a plurality of electromagnetic field results.
It should be noted that, in the embodiment of the present application, the electromagnetic field solving device may utilize a preset solving manner to respectively perform electromagnetic field solving on each sub-area in the solving area. The specific electromagnetic field solving mode is not limited in the embodiment of the application.
It can be understood that in the embodiment of the present application, after the electromagnetic field solving device solves the electromagnetic field result of each sub-area in the solving area, the user can analyze according to the electromagnetic field results to determine whether to adjust part of the components or the wires in the layout of the printed circuit board so as to achieve the best effect.
It is appreciated that in embodiments of the present application, the electromagnetic field solution apparatus determines a solution area from a printed circuit board layout, so that electromagnetic field solution is performed only for the solution area later, and electromagnetic field solution is not required for a non-solution area. Therefore, the solving time and hardware requirements of the electromagnetic field solving device can be greatly reduced. For example, if the printed circuit board layout includes a solution area a and a non-solution area B, the ratio of the electromagnetic field solution using the scheme of the present application to the duration of the electromagnetic field solution using the current solution for all areas is a/(a+b), i.e., the electromagnetic field solution duration is reduced. In addition, the technical scheme of the electromagnetic field solving method and device considers the solving port as the center, and can ensure the accuracy of electromagnetic field solving to a certain extent by utilizing the division of the distance area between the closest capacitor and the solving port.
The embodiment of the application provides an electromagnetic field solving method, which comprises the following steps: identifying a solving port from the printed circuit board layout; identifying an associated element with the highest association with the solving port from the printed circuit board layout, and acquiring the position distance between the solving port and the associated element; determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as the center; and carrying out electromagnetic field solving on the solving area. According to the technical scheme provided by the embodiment of the application, the important solving area is selected from the layout diagram of the printed circuit board to carry out electromagnetic field solving, so that the electromagnetic field solving time is shortened and the electromagnetic field solving efficiency is improved under the condition that the electromagnetic field solving effect is guaranteed.
The embodiment of the application provides an electromagnetic field solving device. Fig. 6 is a schematic structural diagram of an electromagnetic field solving device according to an embodiment of the present application. As shown in fig. 6, the electromagnetic field solving apparatus includes:
the port identification module 601 is configured to identify a solution port from the printed circuit board layout;
the distance obtaining module 602 is configured to identify an association element with the greatest association with the solving port from the printed circuit board layout, and obtain a position distance between the solving port and the association element;
the area determining module 603 is configured to determine a solution area from the printed circuit board layout based on the location distance with the solution port as a center;
and the area solving module 604 is used for carrying out electromagnetic field solving on the solving area.
In an embodiment of the present application, the port identification module 601 is specifically configured to receive a port instruction; and determining the component port indicated by the port instruction in the printed circuit board layout as the solving port.
In an embodiment of the present application, the distance obtaining module 602 is specifically configured to identify, from the printed circuit board layout, a capacitance closest to the solving port; the capacitance is determined as the associated element.
In an embodiment of the present application, the area determining module 603 is specifically configured to obtain a distance parameter; determining a target distance according to the distance parameter and the position distance; the solving port is taken as the center, the target distance is the distance from the solving port to each vertex, and a regular polygon area is determined from the printed circuit board layout; and determining the regular polygon area as the solving area.
In an embodiment of the present application, the area solving module 604 is specifically configured to perform area division on the solving area to obtain a plurality of sub-areas; and respectively carrying out electromagnetic field solving on each sub-region in the plurality of sub-regions to obtain a plurality of electromagnetic field results.
It should be noted that: the above-mentioned division of the modules is merely exemplary, and in practical applications, the internal structure of the electromagnetic field solving device may be divided into different modules to perform all or part of the functions described above. In addition, the electromagnetic field solving device and the electromagnetic field solving method provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which is not described herein again.
Based on the hardware implementation of the device, the embodiment of the application also provides an electromagnetic field solving device. Fig. 7 is a schematic structural diagram II of an electromagnetic field solving device according to an embodiment of the present application. As shown in fig. 7, the electromagnetic field solving means includes a processor 701, a memory 702, and a communication bus 703;
the communication bus 703 for implementing a communication connection between the processor 701 and the memory 702;
the processor 701 is configured to execute an electromagnetic field solver stored in the memory, so as to implement the electromagnetic field solver method described above.
It should be noted that, in the embodiments of the present application, the memory 702 may be a volatile memory or a nonvolatile memory, and may also include both volatile and nonvolatile memories. Wherein the nonvolatile Memory may be Read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable Read Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), magnetic random access Memory (Ferromagnetic RandomAccess Memory, FRAM), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or Read Only optical disk (Compact Disc Read-Only Memory, CD-ROM); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RandomAccess Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (Static RandomAccess Memory, SRAM), synchronous static random access memory (Synchronous Static RandomAccess Memory, SSRAM), dynamic random access memory (Dynamic RandomAccess Memory, DRAM), synchronous dynamic random access memory (Synchronous Dynamic RandomAccess Memory, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate Synchronous Dynamic Random Access Memory, ddr SDRAM), enhanced synchronous dynamic random access memory (Enhanced Synchronous Dynamic RandomAccess Memory, ESDRAM), synchronous link dynamic random access memory (SyncLink Dynamic RandomAccess Memory, SLDRAM), direct memory bus random access memory (Direct Rambus RandomAccess Memory, DRRAM). The memory 702 described in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
The method disclosed in the embodiments of the present application may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium in a memory 702. The processor 701 reads information in the memory 702 and, in combination with its hardware, performs the steps of the method as described above.
The embodiment of the application provides an electromagnetic field solving device, which identifies a solving port from a printed circuit board layout diagram; identifying an associated element with the highest association with the solving port from the printed circuit board layout, and acquiring the position distance between the solving port and the associated element; determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as the center; and carrying out electromagnetic field solving on the solving area. According to the electromagnetic field solving device provided by the embodiment of the application, the important solving area is selected from the layout diagram of the printed circuit board to carry out electromagnetic field solving, so that the electromagnetic field solving time is shortened and the electromagnetic field solving efficiency is improved under the condition that the electromagnetic field solving effect is guaranteed.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when being executed by a processor, implements the electromagnetic field solving method. The computer readable storage medium may be a memory, hard Disk Drive (HDD) or Solid State Drive (SSD); but may be an electronic device such as a mobile phone, computer, tablet device, personal digital assistant, etc., that includes one or any combination of memory.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of implementations of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block and/or flow of the flowchart illustrations and/or block diagrams, and combinations of blocks and/or flow diagrams in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart block or blocks and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application are intended to be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A method of solving an electromagnetic field, the method comprising:
identifying a solving port from the printed circuit board layout; the solving port is an element pin determined based on the arrangement of elements and wires in the printed circuit board layout;
identifying a capacitance closest to the solving port from the printed circuit board layout;
determining the capacitance as an associated element, and acquiring a position distance between the solving port and the associated element;
determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as a center;
carrying out electromagnetic field solving on the solving area;
the determining the solving area from the printed circuit board layout based on the position distance by taking the solving port as a center comprises the following steps:
obtaining a distance parameter;
determining a target distance according to the distance parameter and the position distance;
the solving port is taken as the center, the target distance is the distance from the solving port to each vertex, and a regular polygon area is determined from the printed circuit board layout;
and determining the regular polygon area as the solving area.
2. The method of claim 1, wherein identifying solution ports from the printed circuit board layout comprises:
receiving a port instruction;
and determining the component port indicated by the port instruction in the printed circuit board layout as the solving port.
3. The method of claim 1, wherein said electromagnetic field solving the solving region comprises:
dividing the solving area into a plurality of subareas;
and respectively carrying out electromagnetic field solving on each sub-region in the plurality of sub-regions to obtain a plurality of electromagnetic field results.
4. An electromagnetic field solving apparatus, the apparatus comprising:
the port identification module is used for identifying a solving port from the printed circuit board layout diagram; the solving port is an element pin determined based on the arrangement of elements and wires in the printed circuit board layout;
the distance acquisition module is used for identifying the capacitor closest to the solving port from the printed circuit board layout diagram; determining the capacitance as an associated element, and acquiring a position distance between the solving port and the associated element;
the area determining module is used for determining a solving area from the printed circuit board layout based on the position distance by taking the solving port as a center;
the area solving module is used for solving the electromagnetic field of the solving area;
the region determining module is specifically used for acquiring the distance parameter; determining a target distance according to the distance parameter and the position distance; the solving port is taken as the center, the target distance is the distance from the solving port to each vertex, and a regular polygon area is determined from the printed circuit board layout; and determining the regular polygon area as the solving area.
5. The apparatus of claim 4, wherein the device comprises a plurality of sensors,
the port identification module is specifically used for receiving port instructions; and determining the component port indicated by the port instruction in the printed circuit board layout as the solving port.
6. The apparatus of claim 4, wherein the device comprises a plurality of sensors,
the region solving module is specifically configured to divide the solving region into regions to obtain a plurality of sub-regions; and respectively carrying out electromagnetic field solving on each sub-region in the plurality of sub-regions to obtain a plurality of electromagnetic field results.
7. An electromagnetic field solver, said device comprising a processor, a memory and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor for executing an electromagnetic field solver program stored in the memory to implement the electromagnetic field solver method of any one of claims 1-3.
8. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the electromagnetic field solving method as claimed in any one of claims 1-3.
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| JP4086870B2 (en) * | 2001-06-20 | 2008-05-14 | 日本電気株式会社 | Printed circuit board design support apparatus, method and program |
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| CN109858092A (en) * | 2018-12-27 | 2019-06-07 | 遵义市水世界科技有限公司 | Method, apparatus, computer equipment and the storage medium of PCB component placement |
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