A PCBA processing component layout optimization method and system

Abstract

The present invention discloses a method and system for optimizing the layout of PCBA processing components, which relates to the field of electronic design automation technology. The method collects data flow information of each functional module of the PCBA, analyzes data flow characteristics, and clarifies key signal paths and interactive relationships. According to the functional requirements of the PCBA and the importance of signals, different data flows are prioritized and core signals are determined. The present invention optimizes the layout of components, reduces the circuitous and crossover of signal paths, reduces signal transmission loss and interference, and reasonably divides functional areas and compactly arranges related components according to the direction of data flow and core signals to ensure that the signal transmission path is clear and efficient. At the same time, the transmission quality of high-priority signals is prioritized, and measures such as transmission lines with strong anti-interference capabilities, adding signal buffers and filtering circuits are adopted to significantly improve signal integrity, so that the signal remains stable and reliable during transmission, thereby improving the performance of the entire PCBA system.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic design automation, and in particular to a method and system for optimizing the layout of components for PCBA processing. Background Art

[0002] PCBA stands for Printed Circuit Board Assembly, which refers to a complete electronic assembly formed by mounting electronic components on a printed circuit board (PCB) after a series of process flows. As the functions of electronic products continue to become more complex, PCBA design needs to handle more signal types and higher frequencies. During the PCBA process, the layout of components will affect the smoothness and efficiency of the production process. By optimizing the component layout and concentrating components of the same type or requiring the same processing, the operation steps and time in the production process can be reduced, thereby improving production efficiency.

[0003] In the prior art, PCBA processing is often based on fixed signal transmission rules during layout, and the direction and order of data flow are not fully considered. This leads to excessively long signal paths, wiring congestion, or signal delays, increasing signal transmission loss and interference, and reducing overall system performance. Therefore, how to replan the layout of components based on the direction and order of data flow and change the data flow order to reduce bends and intersections in signal paths is the problem to be solved by the present invention. To this end, a method and system for optimizing the layout of PCBA processing components are proposed. Summary of the Invention

[0004] The present invention aims to provide a method and system for optimizing the layout of components in PCBA processing, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] In a first aspect, a method for optimizing the layout of components for PCBA processing comprises the following steps:

[0007] S1. Collect data flow information of each functional module of PCBA, analyze data flow characteristics, and clarify key signal paths and interaction relationships;

[0008] S2. Based on the functional requirements and signal importance of the PCBA, prioritize different data streams, identify core signals, and prioritize their transmission quality and stability to provide a basis for layout planning;

[0009] S3. Divide the PCBA into different functional areas based on the data flow direction and the determined core signals, and preliminarily locate the positions of key components in each functional area based on the core signal path;

[0010] S4. Within each functional area, compactly arrange related components in the order of data flow to form a single-area layout diagram;

[0011] S5. Analyze the layout of each functional area from an overall perspective, adjust the relative positions of components between areas, and obtain a comprehensive component layout diagram;

[0012] S6. Evaluate the signal transmission performance under the comprehensive component layout diagram through simulation and actual testing, and iteratively optimize the component layout until the requirements are met.

[0013] A further improvement of the technical solution of the present invention is that: S1 specifically includes:

[0014] Clarify the functional modules contained in the PCBA, identify and record all functional modules in the PCBA and the data flow information between them, generate a complete signal list, and record the source, destination, electrical characteristics and functional module of each signal;

[0015] Analyze the data flow characteristics of the collected data flow information and identify key signals. Specifically, classify the signal list to distinguish high-speed signals, low-speed signals, analog signals, and digital signals, analyze the bandwidth, frequency, and timing requirements of the signals, identify the interaction between signals, including master-slave relationships and synchronization requirements, and generate a data flow characteristic analysis report that includes signal classification, key parameters, and interaction relationships;

[0016] Based on the data flow feature analysis results, the key signal paths and their interaction logic in the system are determined. According to the data flow feature analysis report, key signals are identified, a path diagram of the key signals is drawn, the signal source and target functional modules are marked, and the dependencies and timing constraints between key signals are analyzed. Then, a key signal path diagram is generated, marking the signal flow direction, functional module connection relationship and key constraints.

[0017] A further improvement of the technical solution of the present invention is that: S2 specifically includes:

[0018] Sort out the functional requirements of the PCBA, clarify the role of each functional module in the entire system, and evaluate the importance of all signals involved in the data flow based on the functional requirements. Among them, signals that directly affect the realization of the core functions of the system and play a decisive role in performance indicators are judged to be of high importance, while signals that affect auxiliary functions or non-critical indicators are judged to be of lower importance;

[0019] Based on the signal importance assessment results, different data streams are prioritized. Data streams corresponding to high-importance signals are classified as high priority, data streams corresponding to medium-importance signals are classified as medium priority, and data streams corresponding to low-importance signals are classified as low priority. Then, signals that play a key supporting role in system operation and will cause serious system failures if problems occur are screened out from high-priority data streams and identified as core signals.

[0020] Develop specific data transmission strategies for identified core signals and data streams of different priorities. Based on the order of priority, during layout planning, give priority to the layout of functional modules and lines related to high-priority data streams, allocate space and resources, and avoid mutual interference between signals.

[0021] A further improvement of the technical solution of the present invention is that: S3 specifically includes:

[0022] According to the data flow direction and core signals of the PCBA, analyze the direction and interaction logic of the data flow, clarify the starting and ending positions of each data flow in the board, identify the natural boundaries of different functional modules, and combine the determined core signals to determine the basis for dividing functional areas according to the functional relevance of the signals and the data flow direction;

[0023] In the PCB design software, based on the determined division basis, the boundaries of each functional area are divided, and the PCBA is divided into different functional areas. The signals and functions in each functional area are checked for consistency and relevance, ensuring that the signal transmission path within the area is clear and efficient. The size, heat dissipation requirements and actual wiring space of the components are analyzed, and the functional area division is fine-tuned to ensure the feasibility of the layout. The data flow diagram and the core signal path diagram are compared to verify whether the functional area division meets the core signal transmission requirements. Then, a functional area division diagram is generated. The boundaries and positions of each functional area are clearly marked in the PCB design software to ensure that the functional area division is reasonable and meets the system design requirements.

[0024] Based on the core signal path, starting from the source of the core signal, along the signal transmission direction, key components are gradually located in each functional area, and then the relative positions of key components in the functional area are preliminarily determined to ensure that the signal transmission path is reasonable and efficient.

[0025] A further improvement of the technical solution of the present invention is that the process of determining the basis for dividing the functional areas is as follows:

[0026] Collect PCBA circuit schematics, design documents, and related technical information, mark the input and output signals of each functional module, sort out the source and end points of the data flow, analyze the interaction logic between signals, including the bifurcation, convergence, and synchronization relationships of the signals, identify the natural boundaries of each functional module, clarify the data transmission interface between different functional modules, obtain a data flow diagram, mark the starting and ending positions of all data flows, and the interaction logic between functional modules;

[0027] Filter out high-priority core signals and mark the complete path of the core signals in the data flow diagram, including the functional modules and components they pass through. Analyze the characteristics of the core signals, including signal frequency, bandwidth, timing requirements, and special requirements for layout and routing. Obtain a core signal path diagram to clearly define the direction of the core signals and the key functional modules and components they pass through.

[0028] Analyze the data flow diagram and core signal path diagram to find modules with similar functions or data flows, and determine the boundaries of the functional areas based on the signal transmission direction and functional relevance, and then generate a functional area division basis document to describe the division principles, boundaries and included functional modules of each functional area.

[0029] A further improvement of the technical solution of the present invention is that: S4 specifically includes:

[0030] Based on the functional area division results, sort out the data flow sequence within each functional area, determine the starting and ending points of the signal, and identify the signal connection relationship between each component. By consulting the circuit schematic and signal flow diagram, clearly identify the components with direct data interaction and group them together;

[0031] Guided by the direction of signal flow within the functional area, starting from the signal source, arrange related components compactly in sequence, prioritizing the placement of core components to ensure their locations meet signal transmission requirements. Components with direct data interaction are placed in adjacent positions according to the signal flow sequence to reduce signal line length and avoid detours. Plan the layout direction and spacing of each component, leaving ample space for wiring. A sketch of the compactly arranged component layout within the functional area is obtained, with the preliminary component positions and signal flow directions marked.

[0032] Based on the component layout sketch, further optimize the layout, check whether the layout meets the electrical clearance and heat dissipation requirements, adjust the positions that do not meet the requirements, form a single-area layout diagram, mark the component positions, signal paths and connection relationships, and ensure efficient and stable signal transmission within the functional area.

[0033] A further improvement of the technical solution of the present invention is that: S5 specifically includes:

[0034] Integrate the single-area layout diagrams of each functional area into the overall PCBA layout, adjust their positions on the overall PCBA, and form a preliminary overall layout diagram. Analyze the signal connection relationship between functional areas, check whether there are excessively long paths or congestion points, and evaluate whether the layout meets the overall system design requirements. Focus on the signal integrity, wiring space, and heat dissipation requirements between areas. Generate a preliminary overall layout diagram, record the layout evaluation results, and point out the areas and signal paths that need to be optimized;

[0035] Based on the layout evaluation results, observe the relative positional relationships between different functional areas, place functional areas with frequent signal interactions close together, reduce the length of connecting lines, optimize the component layout of each functional area, generate an adjusted overall layout diagram, optimize the relative positions between functional areas, and reduce excessively long paths and congested points;

[0036] Further optimize the signal path direction to ensure that all signal paths are clear and efficient, check whether the wiring of the signal path meets the impedance matching and electromagnetic compatibility requirements, verify and adjust the layout to meet the electrical clearance, wiring specifications and heat dissipation requirements, and conduct a comprehensive verification of the overall layout to ensure the reliability and performance of the system, and then output a comprehensive component layout diagram, marking the final position, signal path and connection relationship of all components to ensure efficient and stable signal transmission.

[0037] A further improvement of the technical solution of the present invention is that: S6 specifically includes:

[0038] Import the comprehensive component layout diagram into the PCB simulation software, build a simulation model in the PCB design software, set simulation parameters, including signal frequency, bandwidth, and timing requirements, run signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis, evaluate signal transmission performance, analyze reflections, crosstalk, and timing margin issues of high-speed signals, generate simulation reports, and identify signal paths and potential problem areas that do not meet performance standards;

[0039] Analyze problems in simulation reports, adjust component layouts accordingly, optimize signal paths, add necessary signal buffering or filtering circuits, adjust component spacing and routing directions, fine-tune high-speed signal paths to ensure impedance matching and reduce electromagnetic interference, generate optimized component layouts, and record optimization measures and adjustment details;

[0040] Based on the optimized component layout, a sample PCBA is manufactured and subjected to signal integrity testing, electromagnetic compatibility testing, and functional testing. The actual test results are compared with the simulation results to verify the optimization effect. If the test results do not meet the requirements, the layout is further adjusted and optimized based on the test feedback until the signal transmission performance meets the design requirements and the final component comprehensive layout is output.

[0041] A further improvement of the technical solution of the present invention is that the generation process of the simulation report is:

[0042] Export the component layout from the PCB design software into a compatible format and import it into the selected PCB simulation software. In the PCB simulation software, build a simulation model based on the actual design requirements, including defining the material properties of the circuit board, the electrical model of the components, and the parasitic parameters of the vias.

[0043] Set simulation parameters including signal frequency, bandwidth, and timing requirements. The simulation parameters are determined according to the design specifications and actual application needs. Select the type of simulation analysis to be performed, including signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis.

[0044] Run the selected simulation analysis, perform calculations based on the set simulation parameters and simulation models, simulate the signal transmission behavior on the circuit board, analyze the reflection, crosstalk and timing margin issues of high-speed signals, and evaluate the quality and reliability of signal transmission;

[0045] After the simulation is completed, a simulation report is generated, which contains various indicators and visualization results of signal transmission performance. The simulation report is analyzed to identify signal paths with substandard performance and potential problem areas. Based on the problems pointed out in the simulation report, the signal paths and component layout areas that need to be optimized are determined.

[0046] In a second aspect, a PCBA processing component layout optimization system is used to implement the PCBA processing component layout optimization method described above, including a visualization management platform, wherein the visualization management platform is communicatively connected to a data flow collection and analysis module, a signal priority division module, a functional area division module, a single area layout optimization module, and a comprehensive layout optimization module, wherein electrical signals are connected between the modules;

[0047] The data flow collection and analysis module is used to collect data flow information of each functional module of the PCBA, generate a signal list, and record the source, end point, electrical characteristics and functional module of the signal;

[0048] The signal prioritization module is used to prioritize different data streams and determine core signals based on functional requirements and signal importance;

[0049] The functional area division module is used to divide the PCBA into different functional areas according to the data flow direction and core signals, and preliminarily locate key components;

[0050] The single-area layout optimization module is used to compactly arrange related components in each functional area according to the data flow order to form a single-area layout diagram, reduce signal circuitousness, reduce local signal transmission loss and interference, and improve signal transmission efficiency;

[0051] The comprehensive layout optimization module is used to integrate the single-area layout diagrams, optimize the overall layout, evaluate and iteratively optimize the layout through simulation and actual testing, and ensure that the signal transmission performance meets the design requirements.

[0052] Due to the adoption of the above technical solution, the present invention has the following technical advancements compared to the prior art:

[0053] The present invention provides a method and system for optimizing the layout of components for PCBA processing. By optimizing the component layout, the circuitous and crossing signal paths are reduced, and signal transmission loss and interference are reduced. Functional areas are rationally divided and related components are compactly arranged according to the direction of data flow and core signals, ensuring a clear and efficient signal transmission path. At the same time, the transmission quality of high-priority signals is prioritized. Measures such as adopting transmission lines with strong anti-interference capabilities and adding signal buffering and filtering circuits significantly improve signal integrity, so that the signal remains stable and reliable during transmission, thereby improving the performance of the entire PCBA system.

[0054] The present invention provides a method and system for optimizing the layout of components for PCBA processing. By combining simulation with actual testing, the component layout is iteratively optimized to ensure the stability and reliability of the layout scheme under various working conditions. Potential signal transmission problems can be discovered and resolved in a timely manner, avoiding system failures caused by unreasonable layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0056] Figure 1 Schematic diagram of the workflow of the present invention;

[0057] Figure 2 Schematic diagram of the method of the present invention. DETAILED DESCRIPTION

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0059] Example 1, as Figure 1 、 Figure 2 As shown, the present invention provides a method for optimizing the layout of components for PCBA processing, comprising the following steps:

[0060] S1. Collect data flow information of each functional module of PCBA, analyze data flow characteristics, clarify key signal paths and interaction relationships, clarify each functional module contained in PCBA, identify and record all functional modules in PCBA and the data flow information between them, generate a complete signal list, record the source, end point, electrical characteristics and functional module of each signal, among which, by consulting circuit schematics and design documents, mark the input and output signals of each functional module, communicate with design engineers, confirm the signal type, connection relationship and function, use PCB design software to export netlist, extract signal connection details, analyze the data flow characteristics of the collected data flow information, identify key Signals, wherein the signal list is classified to distinguish high-speed signals, low-speed signals, analog signals and digital signals, and the bandwidth, frequency and timing requirements of the signals are analyzed. The interactive relationships between signals, including master-slave relationships and synchronization requirements, are identified. A data flow feature analysis report containing signal classification, key parameters and interactive relationships is formed. Based on the data flow feature analysis results, the key signal paths and their interactive logic in the system are determined. According to the data flow feature analysis report, key signals are identified, a path diagram of the key signals is drawn, the signal source and target functional modules are marked, and the dependency and timing constraints between the key signals are analyzed. Then, a key signal path diagram is generated, and the signal flow direction, functional module connection relationship and key constraints are marked.

[0061] S2. According to the functional requirements and signal importance of PCBA, prioritize different data streams, determine the core signals, give priority to ensuring their transmission quality and stability, provide a basis for layout planning, sort out the functional requirements of PCBA, clarify the role of each functional module in the entire system, and evaluate the importance of all signals involved in data streams based on functional requirements. Among them, signals that directly affect the realization of the core functions of the system and play a decisive role in performance indicators are judged as high importance, and signals that affect auxiliary functions or non-critical indicators are judged as lower importance. Based on the signal importance evaluation results, prioritize different data streams and divide the data streams corresponding to high-importance signals into As high priority, the data streams corresponding to medium-importance signals are divided into medium priority, and the data streams corresponding to low-importance signals are divided into low priority. Then, the signals that play a key supporting role in system operation and will cause serious system failures if problems occur are screened out from the high-priority data streams and are determined as core signals. Specific data transmission strategies are formulated for the determined core signals and data streams of different priorities. For core signals, measures such as transmission lines with strong anti-interference capabilities and increased signal buffering and filtering circuits are adopted. According to the priority order, during layout planning, the layout of functional modules and lines related to high-priority data streams is given priority, and space and resources are allocated to avoid mutual interference between signals.

[0062] S3. Divide the PCBA into different functional areas according to the data flow direction and the determined core signals, and preliminarily locate the positions of key components in each functional area based on the core signal path. According to the data flow direction and core signals of the PCBA, analyze the direction and interaction logic of the data flow, clarify the starting and ending positions of each data flow in the board, identify the natural boundaries of different functional modules, combine the determined core signals, and determine the basis for dividing the functional areas according to the functional relevance of the signals and the data flow direction. In the PCB design software, divide the boundaries of each functional area according to the determined division basis, divide the PCBA into different functional areas, check whether the signals and functions in each functional area are consistent and related, ensure that the signal transmission path in the area is clear and efficient, and analyze the components. Based on the size, heat dissipation requirements and actual wiring space, fine-tune the functional area division to ensure the feasibility of the layout. Compare the data flow diagram and the core signal path diagram to verify whether the functional area division meets the transmission requirements of the core signal. Then generate a functional area division diagram and clearly mark the boundaries and positions of each functional area in the PCB design software to ensure that the functional area division is reasonable and meets the system design requirements. According to the core signal path, starting from the source of the core signal, along the signal transmission direction, gradually locate the key components in each functional area. For control signals, find the chip responsible for signal generation and amplification. For high-speed data signals, locate the key components for data caching and conversion. Then preliminarily determine the relative positions of key components in the functional area to ensure that the signal transmission path is reasonable and efficient.

[0063] In addition, the division of functional areas is determined based on the following process:

[0064] Collect PCBA circuit schematics, design documents, and related technical information, mark the input and output signals of each functional module, sort out the source and end point of the data flow, analyze the interaction logic between signals, including the bifurcation, convergence, and synchronization relationship of the signals, identify the natural boundaries of each functional module, clarify the data transmission interface between different functional modules, obtain a data flow diagram, mark the starting and ending positions of all data flows, and the interaction logic between functional modules, filter out high-priority core signals, mark the complete path of the core signal in the data flow diagram, including the functional modules and components it passes through, analyze the characteristics of the core signal, including signal frequency, bandwidth, timing requirements, and special requirements for layout and routing, obtain a core signal path diagram, clarify the direction of the core signal, the key functional modules and components it passes through, analyze the data flow diagram and the core signal path diagram, find modules with similar functions or data flows, and determine the boundaries of the functional areas based on the signal transmission direction and functional relevance, and then generate a functional area division basis document describing the division principles, boundaries, and included functional modules of each functional area;

[0065] S4. Within each functional area, closely arrange related components in the order of data flow to form a single-area layout, reduce signal detours within the area, avoid signal line crossings, and reduce local signal transmission loss and interference;

[0066] S5. Analyze the layout of each functional area from a holistic perspective, adjust the relative positions of components between areas, obtain a comprehensive component layout diagram, optimize signal paths, eliminate excessively long paths and congestion points, and make data flow transmission smoother;

[0067] S6. Evaluate the signal transmission performance under the comprehensive component layout diagram through simulation and actual testing, and iteratively optimize the component layout until the requirements are met.

[0068] Example 2, as Figure 1 、 Figure 2 As shown, based on Example 1, the present invention provides a technical solution: preferably, S4 specifically includes:

[0069] Based on the functional area division results, the data flow sequence within each functional area is sorted out, the starting and ending points of the signal are determined, and the signal connection relationships between the components are identified. By consulting the circuit schematic and signal flow diagram, the components with direct data interaction are clearly identified and grouped together. Guided by the signal flow direction within the functional area, starting from the signal source, the related components are compactly arranged in sequence, with core components placed first to ensure that their positions meet the signal transmission requirements. Components with direct data interaction are arranged in adjacent positions based on the signal flow sequence to reduce the length of signal lines and avoid detours. The layout direction and spacing of each component are planned, and sufficient space is reserved for wiring. A sketch of the compactly arranged component layout within the functional area is obtained, and the preliminary positions of the components and the signal flow direction are marked. Based on the component layout sketch, the layout is further optimized to ensure that the signal lines are as short and straight as possible and to avoid signal line crossings. For high-speed signals, the wiring paths are optimized to reduce transmission loss and electromagnetic interference. The layout is checked to see if it meets the electrical clearance and heat dissipation requirements. Any positions that do not meet the requirements are adjusted to form a single-area layout diagram, marking the component positions, signal paths, and connection relationships to ensure efficient and stable signal transmission within the functional area.

[0070] S5 specifically includes:

[0071] Integrate the single-area layout diagram of each functional area into the overall PCBA layout, adjust its position on the overall PCBA, form a preliminary overall layout diagram, analyze the signal connection relationship between functional areas, check whether there are too long paths or congestion points, evaluate whether the layout meets the overall system design requirements, focus on the signal integrity, wiring space and heat dissipation requirements between areas, generate a preliminary overall layout diagram, record the layout evaluation results, point out the areas and signal paths that need to be optimized, and based on the layout evaluation results, observe the relative position relationship between different functional areas, place functional areas with frequent signal interactions close together, reduce the length of the connection lines, and optimize the component layout of each functional area. Make signal paths short and straight, avoid path crossings, reserve sufficient wiring space for signal paths based on wiring requirements, generate an adjusted overall layout diagram, optimize the relative positions between functional areas, reduce excessively long paths and congestion points, further optimize signal path directions, ensure all signal paths are clear and efficient, check whether the wiring of signal paths meets impedance matching and electromagnetic compatibility requirements, verify and adjust the layout to meet electrical clearance, wiring specifications and heat dissipation requirements, and fully verify the overall layout to ensure system reliability and performance. Then, output a comprehensive component layout diagram, marking the final position, signal paths and connection relationships of all components to ensure efficient and stable signal transmission;

[0072] S6 specifically includes:

[0073] Import the comprehensive component layout diagram into the PCB simulation software, build a simulation model in the PCB design software, set simulation parameters, including signal frequency, bandwidth, and timing requirements, run signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis, evaluate signal transmission performance, analyze reflection, crosstalk, and timing margin issues of high-speed signals, generate simulation reports, identify signal paths and potential problem areas with substandard performance, analyze problems in the simulation report, make targeted adjustments to the component layout, optimize signal paths, add necessary signal buffering or filtering circuits, adjust component spacing and routing direction, fine-tune high-speed signal paths to ensure impedance matching and reduce electromagnetic interference, generate an optimized component layout diagram, and record optimization measures and adjustment details. Based on the optimized component layout diagram, manufacture a prototype PCBA, and use equipment such as oscilloscopes, logic analyzers, and network analyzers to perform signal integrity, electromagnetic compatibility, and functional testing. Compare actual test results with simulation results to verify the optimization effect. If the test results do not meet the requirements, further adjust the layout based on the test feedback and optimize until the signal transmission performance meets the design requirements. Output the final comprehensive component layout diagram and provide a design solution for mass production.

[0074] In addition, the simulation report generation process is:

[0075] Export the component layout diagram from the PCB design software to a compatible format and import it into the selected PCB simulation software. In the PCB simulation software, build a simulation model according to the actual design requirements, including defining the material properties of the circuit board, the electrical model of the components and the parasitic parameters of the vias, and setting simulation parameters including signal frequency, bandwidth and timing requirements. The simulation parameters are determined according to the design specifications and actual application needs. Select the type of simulation analysis to be performed, including signal integrity analysis, electromagnetic compatibility analysis and power integrity analysis. Run the selected simulation analysis, perform calculations based on the set simulation parameters and simulation model, simulate the signal transmission behavior on the circuit board, analyze the reflection, crosstalk and timing margin issues of high-speed signals, and evaluate the quality and reliability of signal transmission. After the simulation is completed, generate a simulation report containing various indicators and visualization results of signal transmission performance. Analyze the simulation report to identify signal paths and potential problem areas that do not meet the performance standards. Based on the problems pointed out in the simulation report, determine the signal paths and component layout areas that need to be optimized.

[0076] Example 3, as Figure 1 、 Figure 2 As shown, based on Examples 1-2, the present invention further provides a PCBA processing component layout optimization system for implementing the above-mentioned PCBA processing component layout optimization method, including a visualization management platform, the visualization management platform is communicatively connected to a data flow collection and analysis module, a signal priority division module, a functional area division module, a single area layout optimization module, and a comprehensive layout optimization module, wherein electrical signals are connected between each module;

[0077] The data flow collection and analysis module is used to collect data flow information of each functional module of the PCBA, generate a signal list, and record the signal source, end point, electrical characteristics and the functional module to which it belongs;

[0078] The signal prioritization module is used to prioritize different data streams based on functional requirements and signal importance, determine core signals, prioritize the transmission quality of high-priority signals, and improve the overall system performance;

[0079] Functional area division module, used to divide the PCBA into different functional areas according to the data flow direction and core signals, preliminarily locate key components, achieve a reasonable layout of functional modules, reduce signal path bending and crossing, optimize component layout, and improve signal transmission efficiency;

[0080] The single-area layout optimization module is used to compactly arrange related components in each functional area according to the data flow order to form a single-area layout diagram, reduce signal circuitousness, reduce local signal transmission loss and interference, and improve signal transmission efficiency;

[0081] The comprehensive layout optimization module is used to integrate single-area layout diagrams and optimize the overall layout. Through simulation and actual testing, the module evaluates and iteratively optimizes the layout to ensure that signal transmission performance meets design requirements and provide a reliable design solution for mass production.

[0082] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A PCBA processing component layout optimization method, characterized in that: The following steps are involved: S1. Collect data flow information of each functional module of the PCBA, analyze data flow characteristics, and clarify key signal paths and interaction relationships. S1 specifically includes: Clarify the functional modules contained in the PCBA, identify and record all functional modules in the PCBA and the data flow information between them, generate a complete signal list, and record the source, destination, electrical characteristics and functional module of each signal; Analyze the data flow characteristics of the collected data flow information and identify key signals. Specifically, classify the signal list to distinguish high-speed signals, low-speed signals, analog signals, and digital signals, analyze the bandwidth, frequency, and timing requirements of the signals, identify the interaction between signals, including master-slave relationships and synchronization requirements, and generate a data flow characteristic analysis report that includes signal classification, key parameters, and interaction relationships; Based on the data flow feature analysis results, determine the key signal paths and their interaction logic in the system. Specifically, according to the data flow feature analysis report, identify key signals, draw a key signal path diagram, mark the signal source and target functional modules, and analyze the dependencies and timing constraints between key signals. Then, generate a key signal path diagram, mark the signal flow direction, functional module connection relationship and key constraints; S2. Prioritize different data streams and determine core signals based on the functional requirements and signal importance of the PCBA; S3. Divide the PCBA into different functional areas based on the data flow direction and the determined core signals, and preliminarily locate the positions of key components in each functional area based on the core signal path; S4. Within each functional area, compactly arrange related components in the order of data flow to form a single-area layout diagram; S5. Analyze the layout of each functional area from an overall perspective, adjust the relative positions of components between areas, and obtain a comprehensive component layout diagram; S6. Evaluate the signal transmission performance under the comprehensive component layout diagram through simulation and actual testing, and iteratively optimize the component layout until the requirements are met.

2. A PCBA processing component layout optimization method according to claim 1, characterized in that: The S2 specifically includes: Sort out the functional requirements of the PCBA, clarify the role of each functional module in the entire system, and evaluate the importance of all signals involved in the data flow based on the functional requirements. Among them, signals that directly affect the realization of the core functions of the system and play a decisive role in performance indicators are judged to be of high importance, while signals that affect auxiliary functions or non-critical indicators are judged to be of lower importance; Based on the signal importance evaluation results, different data streams are prioritized. Data streams corresponding to high-importance signals are classified as high priority, data streams corresponding to medium-importance signals are classified as medium priority, and data streams corresponding to low-importance signals are classified as low priority. Core signals are then filtered out from high-priority data streams. Develop specific data transmission strategies for identified core signals and data flows of different priorities. Based on the order of priority, give priority to the layout of functional modules and lines related to high-priority data flows during layout planning.

3. The PCBA component layout optimization method according to claim 1, wherein: The S3 specifically includes: According to the data flow direction and core signals of the PCBA, analyze the direction and interaction logic of the data flow, clarify the starting and ending positions of each data flow in the board, identify the natural boundaries of different functional modules, and combine the determined core signals to determine the basis for dividing functional areas according to the functional relevance of the signals and the data flow direction; Based on the determined division basis, the boundaries of each functional area are divided, and the PCBA is divided into different functional areas. The signals and functions in each functional area are checked for consistency and relevance. The size, heat dissipation requirements and actual wiring space of the components are analyzed. The functional area division is fine-tuned. The data flow diagram and the core signal path diagram are compared to verify whether the functional area division meets the transmission requirements of the core signal. Then, a functional area division diagram is generated and the boundaries and positions of each functional area are marked. Based on the core signal path, starting from the source of the core signal and along the signal transmission direction, key components are gradually located in each functional area, and then the relative positions of key components in the functional area are preliminarily determined.

4. A PCBA processing component layout optimization method according to claim 3, characterized in that: The process of determining the basis for dividing the functional areas is as follows: Collect PCBA circuit schematics, design documents, and related technical information, mark the input and output signals of each functional module, sort out the source and end points of the data flow, analyze the interaction logic between signals, including the bifurcation, convergence, and synchronization relationships of the signals, identify the natural boundaries of each functional module, clarify the data transmission interface between different functional modules, and obtain a data flow diagram; Filter out high-priority core signals and mark the complete path of the core signals in the data flow diagram, including the functional modules and components they pass through. Analyze the characteristics of the core signals, including signal frequency, bandwidth, timing requirements, and special requirements for layout and routing, to obtain a core signal path diagram. Analyze the data flow diagram and core signal path diagram to find modules with similar functions or data flows, and determine the boundaries of the functional areas based on the signal transmission direction and functional relevance, and then generate a functional area division basis document to describe the division principles, boundaries and included functional modules of each functional area.

5. The PCBA component layout optimization method according to claim 1, wherein: The S4 specifically includes: Based on the functional area division results, sort out the data flow sequence within each functional area, determine the starting and ending points of the signal, and identify the signal connection relationship between each component. By consulting the circuit schematic and signal flow diagram, clearly identify the components with direct data interaction and group them together; Guided by the direction of signal flow within the functional area, starting from the signal source, the related components are arranged compactly in sequence, with core components placed first. Components with direct data interaction are placed in adjacent positions according to the signal flow sequence. The layout direction and spacing of each component are planned to obtain a sketch of the compactly arranged component layout within the functional area, marking the preliminary positions of the components and the signal flow direction. Based on the component layout sketch, further optimize the layout, check whether the layout meets the electrical clearance and heat dissipation requirements, adjust the positions that do not meet the requirements, form a single-area layout diagram, and mark the component positions, signal paths and connection relationships.

6. The PCBA component layout optimization method according to claim 1, characterized in that: The S5 specifically includes: Integrate the single-area layout diagrams of each functional area into the overall PCBA layout, adjust their positions on the overall PCBA, and form a preliminary overall layout diagram. Analyze the signal connection relationship between functional areas and evaluate whether the layout meets the overall system design requirements. Focus on the signal integrity, wiring space, and heat dissipation requirements between areas. Generate a preliminary overall layout diagram, record the layout evaluation results, and point out the areas and signal paths that need to be optimized. Based on the layout evaluation results, observe the relative positional relationships between different functional areas, place functional areas with frequent signal interactions close to each other, optimize the component layout of each functional area, and generate an adjusted overall layout diagram; Further optimize the signal path direction, check whether the signal path wiring meets the impedance matching and electromagnetic compatibility requirements, verify and adjust the layout to meet the electrical clearance, wiring specifications and heat dissipation requirements, and conduct a comprehensive verification of the overall layout, and then output a comprehensive component layout diagram, marking the final position, signal path and connection relationship of all components.

7. The PCBA component layout optimization method according to claim 1, wherein: The S6 specifically includes: Import comprehensive component layout diagrams, build simulation models, set simulation parameters, including signal frequency, bandwidth, and timing requirements, run signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis, evaluate signal transmission performance, analyze reflections, crosstalk, and timing margin issues for high-speed signals, generate simulation reports, and identify signal paths and potential problem areas that do not meet performance standards; Analyze problems in simulation reports, adjust component layouts, optimize signal paths, adjust component spacing and routing directions, fine-tune high-speed signal paths, generate optimized component layouts, and record optimization measures and adjustment details. Based on the optimized component layout, a sample PCBA is manufactured and subjected to signal integrity testing, electromagnetic compatibility testing, and functional testing. The actual test results are compared with the simulation results to verify the optimization effect. If the test results do not meet the requirements, the layout is further adjusted and optimized based on the test feedback until the signal transmission performance meets the design requirements and the final component comprehensive layout is output.

8. The PCBA component layout optimization method according to claim 7, characterized in that: The generation process of the simulation report is as follows: Export the component layout diagram to a compatible format and import it into the selected PCB simulation software. In the PCB simulation software, build a simulation model according to the actual design requirements, including defining the material properties of the circuit board, the electrical model of the components, and the parasitic parameters of the vias; Set simulation parameters including signal frequency, bandwidth, and timing requirements. The simulation parameters are determined according to the design specifications and actual application needs. Select the type of simulation analysis to be performed, including signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis. Run the selected simulation analysis, perform calculations based on the set simulation parameters and simulation models, simulate the signal transmission behavior on the circuit board, analyze the reflection, crosstalk and timing margin issues of high-speed signals, and evaluate the quality and reliability of signal transmission; After the simulation is completed, a simulation report is generated, which contains various indicators and visualization results of signal transmission performance. The simulation report is analyzed to identify signal paths with substandard performance and potential problem areas. Based on the problems pointed out in the simulation report, the signal paths and component layout areas that need to be optimized are determined.

9. A PCBA processing component layout optimization system, used to implement the PCBA processing component layout optimization method according to any one of claims 1 to 8, comprising a visualization management platform, characterized in that: The visualization management platform is communicatively connected to a data flow collection and analysis module, a signal priority division module, a functional area division module, a single area layout optimization module, and a comprehensive layout optimization module, wherein electrical signals are connected between the modules; The data flow collection and analysis module is used to collect data flow information of each functional module of the PCBA, generate a signal list, and record the source, end point, electrical characteristics and functional module of the signal; The signal prioritization module is used to prioritize different data streams and determine core signals based on functional requirements and signal importance; The functional area division module is used to divide the PCBA into different functional areas according to the data flow direction and core signals, and preliminarily locate key components; The single-area layout optimization module is used to compactly arrange related components in each functional area according to the data flow order to form a single-area layout diagram; The comprehensive layout optimization module is used to integrate the single-area layout diagrams, optimize the overall layout, and evaluate and iteratively optimize the layout through simulation and actual testing.

Images