PCBA processing component layout optimization method and system

Abstract

The invention discloses a PCBA (Printed Circuit Board Assembly) processing component layout optimization method and system, and relates to the technical field of electronic design automation. Data stream information of each functional module of a PCBA is collected, data stream characteristics are analyzed, and key signal paths and interaction relationships are determined; the method comprises the following steps of: dividing priorities for different data streams according to functional requirements and signal importance of a PCBA (Printed Circuit Board Assembly), and determining a core signal; by optimizing component layout, reducing roundabout and intersection of signal paths, reducing signal transmission loss and interference, reasonably dividing functional areas and compactly arranging associated components according to data stream directions and core signals, it is ensured that the signal transmission paths are clear and efficient, meanwhile, the transmission quality of high-priority signals is preferentially guaranteed, and the transmission efficiency is improved. By adopting a transmission line with strong anti-interference capability, adding a signal buffer and filter circuit and other measures, the signal integrity is obviously improved, and the signal is kept stable and reliable in the transmission process, so that the performance of the whole PCBA system is improved.

Description

Technical Field

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

[0002] PCBA refers to Printed Circuit Board Assembly, that is, a printed circuit board assembly, which represents a complete electronic assembly formed by installing electronic components on a printed circuit board (PCB) after a series of technological processes. With the continuous complication of the functions of electronic products, PCBA design needs to process more signal types and higher frequencies. During the PCBA processing, 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 those requiring the same process treatment, the operation steps and time in the production process can be reduced, and the production efficiency can be improved.

[0003] In the prior art, during the layout of PCBA processing, it often relies on fixed signal transmission rules and does not fully consider the direction and sequence of the data flow, resulting in too long signal paths, wiring congestion or signal delay, increasing the transmission loss and interference of signals, and reducing the overall performance of the system. Therefore, how to re-plan the layout of components according to the direction and sequence of the data flow and change the data flow order to reduce the bending and crossing of signal paths is the problem to be solved by the present invention. For this purpose, a method and system for optimizing the layout of components in PCBA processing are proposed herein. Summary of the Invention

[0004] The purpose of the present invention is to provide a method and system for optimizing the layout of components in PCBA processing to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the technical solutions adopted by the present invention are as follows: In the first aspect, a method for optimizing the layout of components in PCBA processing includes the following steps: S1. Collect the data flow information of each functional module of the PCBA, analyze the data flow characteristics, and clarify the key signal paths and interaction relationships; S2. According to the functional requirements and signal importance of the PCBA, divide priorities for different data flows, determine the core signals, and give priority to ensuring their transmission quality and stability, providing a basis for layout planning; S3. According to the data flow direction and the determined core signals, divide the PCBA into different functional areas, and initially locate the positions of key components in each functional area according to the core signal paths; S4. In each functional area, arrange the associated components compactly in the order of the 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. Through simulation and actual testing, evaluate the signal transmission performance under the comprehensive component layout diagram, and iteratively optimize the component layout until the requirements are met.

[0006] A further improvement of the technical solution of the present invention lies in that: the S1 specifically includes: Clarify each functional module included 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 point, end point, electrical characteristics and the functional module to which each signal belongs; Analyze the data flow characteristics of the collected data flow information, identify key signals. Among them, 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 relationships between signals including master-slave relationships and synchronization requirements, and form a data flow characteristics analysis report including signal classification, key parameters and interaction relationships; Based on the results of the data flow characteristics analysis, determine the key signal paths and their interaction logics in the system. Among them, according to the data flow characteristics analysis report, identify the key signals, draw the path diagram of the key signals, mark the signal source and the target functional module, and analyze the dependency relationships and timing constraints between the key signals, and then generate a key signal path diagram, marking the signal flow direction, the connection relationship of functional modules and key constraints.

[0007] A further improvement of the technical solution of the present invention lies in that: the S2 specifically includes: Sort out the functional requirements of the PCBA, clarify the roles played by each functional module in the entire system, and based on the functional requirements, evaluate the importance of the signals involved in all data flows. Among them, for the signals that directly affect the realization of the core functions of the system and play a decisive role in the performance indicators, they are judged as high importance, and for the signals that affect auxiliary functions or non-critical indicators, they are judged as relatively low importance; Based on the signal importance evaluation results, divide different data flows into priorities. Divide the data flows corresponding to high-importance signals into high priorities, the data flows corresponding to medium-importance signals into medium priorities, and the data flows corresponding to low-importance signals into low priorities. Then, screen out the signals from the high-priority data flows that play a key supporting role in the system operation and will cause serious system failures once problems occur, and determine them as core signals; For the determined core signals and data flows with different priorities, formulate specific data transmission strategies. According to the priority order, when making layout plans, give priority to arranging the layout of functional modules and lines related to high-priority data flows, allocate space and resources, and avoid mutual interference between signals.

[0008] A further improvement of the technical solution of the present invention lies in that: step S3 specifically includes: Analyze the flow direction and interaction logic of the data stream according to the data stream direction and core signals of the PCBA, clarify the starting and ending positions of each data stream on the board, identify the natural boundaries of different functional modules, and combine the determined core signals. According to the functional relevance and data flow direction of the signals, determine the basis for dividing the functional areas; In the PCB design software, based on the determined division basis, divide the boundaries of each functional area, divide the PCBA into different functional areas, check whether the signals and functions within each functional area are consistent and relevant, ensure that the signal transmission path within the area is clear and efficient, analyze the size, heat dissipation requirements and actual wiring space of the components, fine-tune the division of the functional areas to ensure the feasibility of the layout, compare the data flow diagram and the core signal path diagram, verify whether the division of the functional areas meets the transmission requirements of the core signals, and then generate a functional area division diagram, clearly mark the boundaries and positions of each functional area in the PCB design software to ensure that the division of the functional areas is reasonable and meets the system design requirements; Based on the core signal path, starting from the source point of the core signal, along the signal transmission direction, gradually locate the key components within each functional area, and then preliminarily determine the relative positions of the key components within the functional area to ensure that the signal transmission path is reasonable and efficient.

[0009] A further improvement of the technical solution of the present invention lies in that: the process of determining the basis for dividing the functional areas is as follows: Collect the circuit schematic diagram, design documents and relevant technical materials of the PCBA, mark the input and output signals of each functional module, sort out the source and end points of the data stream, analyze the interaction logic between the signals, including the bifurcation, convergence and synchronization relationships of the signals, identify the natural boundaries of each functional module, clarify the data transmission interfaces between different functional modules, obtain the data flow diagram, and mark the starting and ending positions of all data streams, as well as the interaction logic between the functional modules; Select the core signals with high priority, 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 wiring, obtain the core signal path diagram, and clarify the direction of the core signals, the key functional modules and components they pass through; Analyze the data flow diagram and the core signal path diagram, find out the modules with similar functions or data flows, and according to the signal transmission direction and functional relevance, determine the boundaries of the functional areas, and then generate a document on the basis for dividing the functional areas, describing the division principles, boundaries and included functional modules of each functional area.

[0010] A further improvement of the technical solution of the present invention lies in that: S4 specifically includes: According to the result of the functional area division, sort out the data flow sequence within each functional area, determine the starting point and ending point of the signal, identify the signal connection relationship between each component, and by referring to the circuit schematic diagram and signal flow diagram, clarify the components with direct data interaction and group them together; Guided by the signal flow direction within the functional area, starting from the signal source, arrange the associated components in a compact order in sequence, give priority to placing the core components to ensure that their positions meet the signal transmission requirements, and arrange the components with direct data interaction adjacent to each other according to the signal flow sequence to reduce the length of the signal line, avoid detours, plan the layout direction and spacing of each component, reserve sufficient space for wiring, obtain a sketch of the component layout in the functional area arranged in a compact manner, and mark 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 requirements of electrical clearance and heat dissipation, adjust the positions that do not meet the requirements, form a single - area layout diagram, mark the component positions, signal paths and connection relationships to ensure efficient and stable signal transmission within the functional area.

[0011] A further improvement of the technical solution of the present invention lies in that: 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 to 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, and point out the areas and signal paths that need to be optimized; According to the layout evaluation results, observe the relative position relationship between different functional areas, place the functional areas with frequent signal interaction close to each other to reduce the length of the connection lines, optimize the component layout of each functional area, generate an adjusted overall layout diagram, optimize the relative positions between functional areas, and reduce too long paths and congestion points; Further optimize the signal path direction to ensure that all signal paths are clear and efficient, check whether the wiring of the signal paths meets the requirements of impedance matching and electromagnetic compatibility, verify and adjust the layout to meet the requirements of electrical clearance, wiring specifications and heat dissipation, 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 positions of all components, signal paths and connection relationships to ensure efficient and stable signal transmission.

[0012] A further improvement of the technical solution of the present invention lies in that: S6 specifically includes: Import the comprehensive layout diagram of components into the PCB simulation software, build a simulation model in the PCB design software, and set the simulation parameters, including signal frequency, bandwidth, and timing requirements. Run signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis, evaluate the signal transmission performance, analyze the reflection, crosstalk, and timing margin issues of high-speed signals, generate a simulation report, and identify the signal paths with substandard performance and potential problem areas; Analyze the problems in the simulation report, adjust the component layout accordingly, optimize the signal path, add necessary signal buffer or filter circuits, adjust the component spacing and wiring direction, and fine-tune the high-speed signal path to ensure impedance matching and reduce electromagnetic interference. Generate an optimized component layout diagram, and record the optimization measures and adjustment details; According to the optimized component layout diagram, manufacture a prototype PCBA, conduct signal integrity testing, electromagnetic compatibility testing, and functional testing. Compare the actual test results with the simulation results to verify the optimization effect. If the test results do not meet the requirements, further adjust the layout according to the test feedback and optimize it until the signal transmission performance meets the design requirements, and then output the final comprehensive layout diagram of components.

[0013] A further improvement of the technical solution of the present invention lies in that: the process of generating the simulation report is as follows: Export the comprehensive layout diagram of components from the PCB design software in 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 models of components, and the parasitic parameters of vias; Set the simulation parameters including signal frequency, bandwidth, and timing requirements. The simulation parameters are determined according to the design specifications and actual application requirements. Select the types of simulation analysis to be performed, including signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis; Run the selected simulation analysis, calculate according to 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, which contains various indicators and visualization results of signal transmission performance. Analyze the simulation report, identify the signal paths with substandard performance and potential problem areas, and determine the signal paths and component layout areas to be optimized according to the problems pointed out in the simulation report.

[0014] Second aspect, a PCBA processing component layout optimization system for implementing the above-mentioned PCBA processing component layout optimization method, including a visualization management platform, which is communicatively connected to a data stream 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. Among them, the electrical signals are connected between the modules; The data stream collection and analysis module is used to collect the data stream information of each functional module of the PCBA, generate a signal list, and record the source point, end point, electrical characteristics, and the functional module to which the signal belongs; The signal priority division module is used to divide the priorities of different data streams according to functional requirements and signal importance, and determine the core signals; The functional area division module is used to divide the PCBA into different functional areas according to the data stream direction and core signals, and initially locate the key components; The single area layout optimization module is used to compactly arrange the associated components in each functional area in the order of the data stream, form a single area layout diagram, reduce signal detours, reduce local signal transmission loss and interference, and improve signal transmission efficiency; 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 tests to ensure that the signal transmission performance meets the design requirements.

[0015] Due to the adoption of the above technical solutions, the technical progress achieved by the present invention compared with the prior art is: The present invention provides a PCBA processing component layout optimization method and system. By optimizing the component layout, it reduces the detours and intersections of the signal paths, reduces signal transmission loss and interference, reasonably divides the functional areas and compactly arranges the associated components according to the data stream direction and core signals, ensures that the signal transmission path is clear and efficient. At the same time, it gives priority to ensuring the transmission quality of high-priority signals, adopts transmission lines with strong anti-interference ability, adds signal buffer and filtering circuits and other measures to significantly improve signal integrity, so that the signal remains stable and reliable during transmission, thereby improving the performance of the entire PCBA system.

[0016] The present invention provides a PCBA processing component layout optimization method and system. Through the combination of simulation and actual tests, it iteratively optimizes the component layout to ensure the stability and reliability of the layout scheme under various working conditions, can timely discover and solve potential signal transmission problems, and avoids system failures caused by unreasonable layout. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0018] Figure 1 Schematic diagram of the working process of the present invention; Figure 2 Schematic diagram of the method flow of the present invention. Detailed implementation manners

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, rather than all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1, as Figure 1 、 Figure 2 shown, the present invention provides a method for optimizing the layout of PCBA components, including the following steps: S1. Collect the data flow information of each functional module of the PCBA, analyze the data flow characteristics, clarify the key signal paths and interaction relationships, clarify each functional module included in the PCBA, identify and record all functional modules in the PCBA and the data flow information between them, generate a complete signal list, record the source point, end point, electrical characteristics and the functional module to which each signal belongs. Among them, by referring to the circuit schematic diagram and design documents, mark the input and output signals of each functional module, communicate with the design engineer to confirm the signal type, connection relationship and function, use the PCB design software to export the netlist, extract the signal connection details, analyze the data flow characteristics of the collected data flow information, identify the key signals. Among them, classify the signal list to distinguish high-speed signals, low-speed signals, analog signals and digital signals, and analyze the bandwidth, frequency and timing requirements of the signals, identify the interaction relationships between the signals including the master-slave relationship and synchronization requirements, form a data flow characteristic analysis report including signal classification, key parameters and interaction relationships. Based on the data flow characteristic analysis results, determine the key signal paths and their interaction logics in the system. Among them, according to the data flow characteristic analysis report, identify the key signals, draw the path diagram of the key signals, mark the signal source and the target functional module, and analyze the dependency relationship and timing constraints between the key signals, and then generate the key signal path diagram, mark the signal flow direction, functional module connection relationship and key constraints; S2. According to the functional requirements and signal importance of the PCBA, prioritize different data streams, determine the core signals, and prioritize ensuring their transmission quality and stability, providing a basis for layout planning. Sort out the functional requirements of the PCBA, clarify the roles played by each functional module in the entire system, and based on the functional requirements, evaluate the importance of the signals involved in all data streams. Among them, for the signals that directly affect the realization of the core functions of the system and play a decisive role in performance indicators, they are judged as highly important, and for the signals that affect auxiliary functions or non-critical indicators, they are judged as less important. Based on the signal importance evaluation results, prioritize different data streams. The data streams corresponding to highly important signals are classified as high-priority, the data streams corresponding to medium-importance signals are classified as medium-priority, and the data streams corresponding to low-importance signals are classified as low-priority. Furthermore, screen out the signals from the high-priority data streams that play a key supporting role in the system operation and will cause serious system failures once problems occur, and determine them as core signals. For the determined core signals and different-priority data streams, formulate specific data transmission strategies. Among them, for the core signals, adopt measures such as transmission lines with strong anti-interference capabilities and adding signal buffering and filtering circuits. According to the priority order, when making layout planning, give priority to arranging the layout of functional modules and lines related to high-priority data streams, allocate space and resources, and avoid mutual interference between signals; 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 paths. Analyze the data flow direction and interaction logic according to the data flow direction and core signals of the PCBA, clarify the starting and ending positions of each data flow on the board, identify the natural boundaries of different functional modules, and determine the basis for dividing the functional areas in combination with the determined core signals. According to the functional relevance and data flow of the signals, in the PCB design software, divide the boundaries of each functional area based on the determined basis for division, divide the PCBA into different functional areas, check whether the signals and functions in each functional area are consistent and relevant, ensure that the signal transmission paths within the area are clear and efficient, analyze the size, heat dissipation requirements and actual wiring space of the components, fine-tune the division of the functional areas to ensure the feasibility of the layout, compare the data flow diagram and the core signal path diagram, verify whether the division of the functional areas meets the transmission requirements of the core signals, and then generate a functional area division diagram, clearly mark the boundaries and positions of each functional area in the PCB design software, ensure that the division of the functional areas is reasonable and meets the system design requirements. Based on the core signal path, starting from the source point of the core signal, along the signal transmission direction, gradually locate the key components in each functional area. Among them, for control signals, find the chips responsible for signal generation and amplification, and for high-speed data signals, locate the key devices for data caching and conversion, and then preliminarily determine the relative positions of the key components in the functional area to ensure that the signal transmission path is reasonable and efficient; In addition, the process for determining the basis for dividing the functional areas is as follows: Collect the circuit schematic diagrams, design documents and relevant technical materials of the PCBA, mark the input and output signals of each functional module, sort out the source and destination of the data flow, analyze the interaction logic between the signals, including signal bifurcation, convergence and synchronization relationships, identify the natural boundaries of each functional module, clarify the data transmission interfaces between different functional modules, obtain the data flow diagram, mark the starting and ending positions of all data flows, as well as the interaction logic between functional modules, screen out the core signals with high priority, 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 wiring, obtain the core signal path diagram, clarify the direction of the core signals, the key functional modules and components they pass through, analyze the data flow diagram and the core signal path diagram, find the modules with similar functions or data flows, and determine the boundaries of the functional areas according to the signal transmission direction and functional relevance, and then generate a document on the basis for dividing the functional areas, describing the division principles, boundaries and functional modules included in each functional area; S4. In each functional area, arrange the associated components compactly in the order of the data flow to form a single-area layout diagram, reducing the detours of signals within the area, avoiding signal line crossings, and reducing local signal transmission losses and interference; S5. Analyze the layout of each functional area from an overall perspective, adjust the relative positions of the components between areas, obtain a comprehensive component layout diagram, optimize the signal path direction, eliminate long paths and congestion points, and make the data flow transmission smoother; S6. Through simulation and actual testing, evaluate the signal transmission performance under the comprehensive component layout diagram, and iteratively optimize the component layout until the requirements are met.

[0021] Embodiment 2, as Figure 1 、 Figure 2 shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, S4 specifically includes: According to the functional area division result, sort out the data flow order in each functional area, determine the starting point and ending point of the signal, identify the signal connection relationship between each component, clarify the components with direct data interaction by referring to the circuit schematic diagram and signal flow diagram, group them together, and guided by the signal flow direction within the functional area, starting from the signal source, arrange the associated components compactly in sequence, give priority to placing the core components to ensure that their positions meet the signal transmission requirements, and arrange the components with direct data interaction in adjacent positions according to the signal flow order to reduce the signal line length and avoid detours. Plan the layout direction and spacing of each component, reserve sufficient space for wiring, obtain a sketch of the component layout with compact arrangement within the functional area, mark the preliminary positions of the components and the signal flow direction, and further optimize the layout based on the component layout sketch to ensure that the signal lines are as short and straight as possible, avoid signal line crossings, optimize the wiring path for high-speed signals, reduce transmission losses and electromagnetic interference, check whether the layout meets the requirements of electrical clearance and heat dissipation, and adjust the non-compliant positions 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; S5 specifically includes: 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, observe the relative position relationship between different functional areas based on the layout evaluation results, place functional areas with frequent signal interactions close together, reduce the length of the connection lines, and optimize the layout of components in each functional area. Make the signal path short and straight, avoid path crossing, reserve enough wiring space for the signal path in combination with wiring requirements, generate the adjusted overall layout diagram, optimize the relative positions between functional areas, reduce excessively long paths and congestion points, further optimize the direction of the signal path, 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 the comprehensive layout diagram of components, mark the final position, signal path and connection relationship of all components, and ensure efficient and stable signal transmission; S6 specifically includes: Import the comprehensive layout of components 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 the reflection, crosstalk and timing margin problems of high-speed signals, generate simulation reports, identify signal paths and potential problem areas with substandard performance, analyze the problems in the simulation report, adjust the layout of components in a targeted manner, optimize the signal path, add necessary signal buffering or filtering circuits, adjust the spacing and wiring direction of components, fine-tune the high-speed signal path, ensure impedance matching and reduce electromagnetic interference, generate an optimized component layout diagram, and record the optimization measures and adjustment details. According to the optimized component layout diagram, manufacture sample PCBAs, use oscilloscopes, logic analyzers, network analyzers and other equipment to perform signal integrity tests, electromagnetic compatibility tests and functional tests, compare actual test results with simulation results, and verify the optimization effect. If the test results do not meet the requirements, further adjust the layout according to the test feedback and optimize until the signal transmission performance meets the design requirements. Output the final comprehensive layout of components to provide a design solution for mass production; In addition, the simulation report generation process is: Export the comprehensive component layout diagram from the PCB design software in 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 models of the components, and the parasitic parameters of the vias. Set the simulation parameters including signal frequency, bandwidth, and timing requirements. The simulation parameters are determined according to the design specifications and actual application requirements. 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, calculate according to the set simulation parameters and simulation model, simulate the transmission behavior of signals on the circuit board, analyze the reflection, crosstalk, and timing margin problems of high-speed signals, evaluate the quality and reliability of signal transmission. After the simulation is completed, generate a simulation report, which contains various indicators and visualization results of signal transmission performance. Analyze the simulation report, identify the signal paths and potential problem areas with substandard performance. According to the problems pointed out in the simulation report, determine the signal paths and component layout areas to be optimized.

[0022] Embodiment 3, as Figure 1 、 Figure 2 shown, on the basis of Embodiments 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, which is communicatively connected to a data stream 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. Among them, the electrical signals are connected between the modules; The data stream collection and analysis module is used to collect the data stream information of each functional module of the PCBA, generate a signal list, and record the source point, end point, electrical characteristics, and the functional module to which the signal belongs; The signal priority division module is used to divide the priorities of different data streams according to the functional requirements and signal importance, determine the core signals, and give priority to ensuring the transmission quality of high-priority signals to improve the overall performance of the system; The functional area division module is used to divide the PCBA into different functional areas according to the data stream direction and core signals, initially locate the key components, realize the reasonable layout of the functional modules, reduce the bending and crossing of signal paths, optimize the component layout, and improve the signal transmission efficiency; The single-area layout optimization module is used to compactly arrange the associated components in the order of the data stream within each functional area to form a single-area layout diagram, reduce signal detours, reduce local signal transmission loss and interference, and improve the signal transmission efficiency; 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 tests to ensure that the signal transmission performance meets the design requirements, and provide a reliable design scheme for mass production.

[0023] As described above, it is only the specific implementation manner of the present application. However, the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claimed rights.

Claims

1. A method for optimizing the layout of components in PCBA processing, characterized in that, It includes the following steps: S1. Collect the data flow information of each functional module of the PCBA, analyze the data flow characteristics, and clarify the key signal paths and interaction relationships; S2. According to the functional requirements and signal importance of the PCBA, divide the priorities for different data flows and determine the core signals; S3. According to the data flow direction and the determined core signals, divide the PCBA into different functional areas, and initially locate the positions of key components in each functional area according to the core signal paths; S4. In each functional area, arrange the associated components compactly in the order of the 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 the components between the areas, and obtain a comprehensive component layout diagram; S6. Through simulation and actual testing, evaluate the signal transmission performance under the comprehensive component layout diagram, and iteratively optimize the component layout until the requirements are met.

2. The PCBA processing component layout optimization method according to claim 1, wherein: The specific content of S1 includes: Clarify each functional module included in the PCBA, identify and record all functional modules and the data flow information between them in the PCBA, generate a complete signal list, and record the source point, end point, electrical characteristics and the functional module to which each signal belongs; Analyze the data flow characteristics of the collected data flow information, identify key signals. Among them, classify the signal list to distinguish high-speed signals, low-speed signals, analog signals and digital signals, and analyze the bandwidth, frequency and timing requirements of the signals, and identify the interaction relationships between the signals including the master-slave relationship and synchronization requirements, so as to form a data flow characteristic analysis report including signal classification, key parameters and interaction relationships; Based on the results of the data flow characteristic analysis, determine the key signal paths and their interaction logics in the system. Among them, according to the data flow characteristic analysis report, identify the key signals, draw the path diagram of the key signals, mark the signal source and the target functional module, and analyze the dependence relationship and timing constraints between the key signals, and then generate a key signal path diagram, marking the signal flow direction, the connection relationship of the functional modules and the key constraints.

3. A method for optimizing the layout of components in PCBA processing according to claim 1, characterized in that: The specific content of S2 includes: Sort out the functional requirements of the PCBA, clarify the roles played by each functional module in the whole system, and evaluate the importance of the signals involved in all data flows according to the functional requirements. Among them, for the signals that directly affect the realization of the core functions of the system and play a decisive role in the performance indicators, they are judged as high importance, and for the signals that affect the auxiliary functions or non-critical indicators, they are judged as relatively low importance; Based on the signal importance evaluation results, divide the priorities for different data flows, divide the data flows corresponding to high-importance signals into high priorities, the data flows corresponding to medium-importance signals into medium priorities, and the data flows corresponding to low-importance signals into low priorities, and then screen out the core signals from the high-priority data flows; For the determined core signals and data flows with different priorities, formulate specific data transmission strategies, and according to the priority order, give priority to arranging the layout of the functional modules and lines related to the high-priority data flows during the layout planning.

4. A method for optimizing the layout of components in PCBA processing according to claim 1, characterized in that: The specific content of S3 includes: Analyze the flow direction and interaction logic of the data stream according to the data stream direction and core signals of the PCBA, clarify the starting and ending positions of each data stream on the board, identify the natural boundaries of different functional modules, and determine the basis for dividing the functional areas in combination with the determined core signals according to the functional relevance and data flow of the signals; Based on the determined division basis, divide the boundaries of each functional area, divide the PCBA into different functional areas, check whether the signals and functions within each functional area are consistent and relevant, analyze the size, heat dissipation requirements and actual wiring space of the components, fine-tune the division of the functional areas, compare the data flow diagram and the core signal path diagram, verify whether the division of the functional areas meets the transmission requirements of the core signals, and then generate a functional area division diagram, marking the boundaries and positions of each functional area; Based on the core signal path, starting from the source point of the core signal, along the signal transmission direction, gradually locate the key components within each functional area, and then preliminarily determine the relative positions of the key components within the functional areas.

5. A method for optimizing the layout of PCBA processing components according to claim 4, characterized in that: The process of determining the basis for dividing the functional areas is as follows: Collect the circuit schematic diagrams, design documents and relevant technical materials of the PCBA, mark the input and output signals of each functional module, sort out the source and end points of the data stream, analyze the interaction logic between the signals, including the bifurcation, convergence and synchronization relationships of the signals, identify the natural boundaries of each functional module, clarify the data transmission interfaces between different functional modules, and obtain a data flow diagram; Select the core signals with high priority, mark the complete path of the core signals in the data flow diagram, including the functional modules and components passed by them, analyze the characteristics of the core signals, including signal frequency, bandwidth, timing requirements, and special requirements for layout and wiring, and obtain a core signal path diagram; Analyze the data flow diagram and the core signal path diagram, find the modules with similar functions or data flows, and determine the boundaries of the functional areas according to the signal transmission direction and functional relevance, and then generate a document on the basis for dividing the functional areas, describing the division principles, boundaries and included functional modules of each functional area.

6. The optimized method for component layout in PCBA processing according to claim 1, wherein: The specific steps of S4 are as follows: According to the results of the division of the functional areas, sort out the data stream order within each functional area, determine the starting and ending points of the signals, identify the signal connection relationships between the components, and clarify the components with direct data interaction by referring to the circuit schematic diagram and the signal flow diagram, and group them together; Guided by the signal flow direction within the functional area, starting from the signal source, arrange the associated components in a compact order in turn, give priority to placing the core components, and arrange the components with direct data interaction in adjacent positions according to the signal flow order, plan the layout direction and spacing of each component, obtain a sketch of the compact layout of the components within the functional area, and mark the preliminary positions of the components and the signal flow direction; Based on the sketch of the component layout, further optimize the layout, check whether the layout meets the requirements of electrical clearance and heat dissipation, adjust the positions that do not meet the requirements, and form a single-area layout diagram, marking the component positions, signal paths and connection relationships.

7. A method for optimizing the layout of components in PCBA processing according to claim 1, characterized in that: The specific steps of S5 are as follows: Integrate the single-region layout diagrams of each functional area into the overall PCBA layout, adjust their positions on the overall PCBA to form a preliminary overall layout diagram, analyze the signal connection relationships between functional areas, evaluate whether the layout meets the overall system design requirements, with a focus on signal integrity, routing space, and heat dissipation requirements between regions, generate a preliminary overall layout diagram, record the layout evaluation results, and indicate the areas and signal paths that need to be optimized; Based on the layout evaluation results, observe the relative position relationships between different functional areas, place the functional areas with frequent signal interactions close to each other, optimize the component layouts of each functional area, and generate an adjusted overall layout diagram; Further optimize the signal path directions, check whether the routing of the signal paths meets the requirements of impedance matching and electromagnetic compatibility, verify and adjust the layout to meet the requirements of electrical clearance, routing specifications, and heat dissipation, and conduct a comprehensive verification of the overall layout, and then output a comprehensive component layout diagram, marking the final positions, signal paths, and connection relationships of all components.

8. A method for optimizing the layout of PCBA processing components according to claim 1, characterized in that: The specific content of S6 includes: Import the comprehensive component layout diagram, build a simulation model, set simulation parameters, including signal frequency, bandwidth, and timing requirements, run signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis, evaluate the signal transmission performance, analyze the reflection, crosstalk, and timing margin problems of high-speed signals, generate a simulation report, and identify the signal paths and potential problem areas with unqualified performance; Analyze the problems in the simulation report, adjust the component layout targeted, optimize the signal path, adjust the component spacing and routing direction, and fine-tune the high-speed signal path, generate an optimized component layout diagram, and record the optimization measures and adjustment details; Based on the optimized component layout diagram, manufacture a prototype PCBA, conduct signal integrity testing, electromagnetic compatibility testing, and functional testing, compare the actual test results with the simulation results, verify the optimization effect. If the test results do not meet the requirements, further adjust the layout according to the test feedback and conduct optimization until the signal transmission performance meets the design requirements and output the final comprehensive component layout diagram.

9. The method for optimizing the layout of PCBA processing components according to claim 8, characterized in that: The generation process of the simulation report is as follows: Export the comprehensive 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 models of components, and the parasitic parameters of vias; Set simulation parameters including signal frequency, bandwidth, and timing requirements. The simulation parameters are determined according to the design specifications and actual application requirements, and select the types of simulation analysis to be performed, including signal integrity analysis, electromagnetic compatibility analysis, and power integrity analysis; Run the selected simulation analysis, calculate according to the set simulation parameters and simulation model, simulate the signal transmission behavior on the circuit board, analyze the reflection, crosstalk, and timing margin problems 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 of signal transmission performance and visualization results. Analyze the simulation report to identify signal paths with substandard performance and potential problem areas. Based on the problems pointed out in the simulation report, determine the signal paths and component layout areas that need to be optimized.

10. A PCBA processing component layout optimization system for implementing the PCBA processing component layout optimization method according to any one of claims 1-9 above, including a visualization management platform, characterized in that: The visualization management platform is communicatively connected to a data stream 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. Among them, the electrical signals are connected between the modules; The data stream collection and analysis module is used to collect the data stream information of each functional module of the PCBA, generate a signal list, and record the source point, end point, electrical characteristics, and the functional module to which the signal belongs; The signal priority division module is used to divide the priorities of different data streams according to functional requirements and signal importance, and determine the core signals; The functional area division module is used to divide the PCBA into different functional areas according to the data stream direction and core signals, and initially locate the key components; The single-area layout optimization module is used to compactly arrange the associated components in the order of the data stream within each functional area 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.

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