CN116663868A - PCB assembly progress monitoring system - Google Patents

PCB assembly progress monitoring system Download PDF

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Publication number
CN116663868A
CN116663868A CN202310953684.6A CN202310953684A CN116663868A CN 116663868 A CN116663868 A CN 116663868A CN 202310953684 A CN202310953684 A CN 202310953684A CN 116663868 A CN116663868 A CN 116663868A
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Prior art keywords
circuit board
delay
assembly
signal
execution
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CN202310953684.6A
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CN116663868B (en
Inventor
颜璐
崔双龙
黄莉
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Jiangmen Keneng Electronic Co ltd
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Shenzhen Tewang Electronics Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • G06Q10/06311—Scheduling, planning or task assignment for a person or group
    • G06Q10/063116—Schedule adjustment for a person or group
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0633—Workflow analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G06Q10/103—Workflow collaboration or project management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/018—Certifying business or products
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention discloses a PCB assembly progress monitoring system, which relates to the technical field of assembly progress monitoring and solves the technical problem that a PCB assembly process cannot be subjected to delay analysis in the assembly process in the prior art, wherein a process delay analysis unit carries out delay analysis on the current PCB assembly process, judges whether the current assembly progress is influenced according to the delay of the real-time PCB assembly process, generates a delay irregular signal or a delay regular signal through analysis and sends the delay irregular signal to a monitoring center; the flow execution analysis unit is used for executing analysis on the real-time assembly flow of the circuit board; generating a flow execution abnormal signal or a flow execution normal signal through analysis and sending the flow execution abnormal signal or the flow execution normal signal to a monitoring center; after receiving the analysis signal of the assembly equipment, the assembly equipment analysis unit detects the performance of the circuit board assembly equipment and judges whether the efficiency of the circuit board assembly equipment is qualified.

Description

PCB assembly progress monitoring system
Technical Field
The invention relates to the technical field of assembly progress monitoring, in particular to a PCB assembly progress monitoring system.
Background
Printed circuit boards, also known as printed circuit boards, are providers of electrical connections for electronic components. Printed circuit boards are commonly referred to as "PCBs". The design of the printed circuit board is mainly layout design; the main advantages of the circuit board are greatly reduced wiring and assembly errors, and improved automation level and production labor rate. The printed circuit board can be divided into a single panel, a double panel, a four-layer board, a six-layer board and other multi-layer circuit boards according to the number of layers of the circuit board.
However, in the prior art, the PCB circuit board cannot perform delay analysis on the current assembly process during the assembly process, so that whether the current assembly progress is affected cannot be judged according to the delay of the real-time circuit board assembly process, which causes the real-time circuit board assembly progress to be affected by the process;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to solve the problems of the background art, and provides a PCB circuit board assembly progress monitoring system, wherein a flow execution analysis unit performs execution analysis on a circuit board real-time assembly flow and judges whether the execution qualification of the current circuit board assembly flow is qualified, so that the circuit board assembly progress is managed and controlled in real time, the circuit board assembly efficiency is improved, the circuit board assembly progress can be found in time when the circuit board assembly progress is influenced, and the influence of the circuit board assembly progress is reduced to the minimum.
The aim of the invention can be achieved by the following technical scheme:
the PCB assembly progress monitoring system comprises a monitoring center, wherein the monitoring center is in communication connection with a process delay analysis unit, a flow execution analysis unit and an assembly equipment analysis unit;
the monitoring center generates a process delay analysis signal and sends the process delay analysis signal to a process delay analysis unit, the process delay analysis unit receives the process delay analysis signal, then carries out delay analysis on the current circuit board assembly process, judges whether the current assembly progress is affected according to the delay of the real-time circuit board assembly process, generates a delay irregular signal or a delay regular signal through analysis, and sends the delay irregular signal or the delay regular signal to the monitoring center;
after the monitoring center completes the process delay analysis, generating a flow execution analysis signal and sending the flow execution analysis signal to a flow execution analysis unit, and after the flow execution analysis unit receives the flow execution analysis signal, performing execution analysis on the real-time assembly flow of the circuit board; generating a flow execution abnormal signal or a flow execution normal signal through analysis and sending the flow execution abnormal signal or the flow execution normal signal to a monitoring center;
after receiving the normal signal of the process execution, the monitoring center generates an assembly equipment analysis signal and sends the assembly equipment analysis signal to an assembly equipment analysis unit, and after receiving the assembly equipment analysis signal, the assembly equipment analysis unit detects the performance of the circuit board assembly equipment and judges whether the efficiency of the circuit board assembly equipment is qualified.
As a preferred embodiment of the present invention, the process delay analysis unit operates as follows:
counting all the processes of the current circuit board assembly process, acquiring the delay time of each process and marking the acquired delay time as a delay threshold;
the method comprises the steps of collecting the deviation value floating span of each flow delay time length and delay threshold value in the current circuit board assembly process and the delay time length floating frequency of the same flow in the circuit board assembly process, and comparing the deviation value floating span of each flow delay time length and delay threshold value in the current circuit board assembly process and the delay time length floating frequency of the same flow in the circuit board assembly process with the deviation value floating span threshold value and the delay time length floating frequency threshold value respectively.
As a preferred implementation mode of the invention, if the deviation value floating span of each flow delay time length and the delay threshold value in the current circuit board assembly process exceeds the deviation value floating span threshold value, or the delay time length floating frequency of the same flow in the circuit board assembly process exceeds the delay time length floating frequency threshold value, judging that the delay time length analysis of the current circuit board assembly process is abnormal, generating a delay irregular signal and sending the delay irregular signal to a monitoring center;
if the deviation value floating span of each flow delay time length and the delay threshold value in the current circuit board assembly process does not exceed the deviation value floating span threshold value and the delay time length floating frequency of the same flow in the circuit board assembly process does not exceed the delay time length floating frequency threshold value, judging that the delay time length analysis of the current circuit board assembly process is normal, generating a delay regular signal and sending the delay regular signal to a monitoring center.
As a preferred embodiment of the invention, after receiving the delay irregular signal, the monitoring center monitors each flow connection period of the current circuit board assembly process in real time and performs non-fixed setting on each flow connection period; after receiving the delay regular signal, the monitoring center monitors each flow connection period of the current circuit board assembly process in a time-sharing manner, and fixedly sets each flow connection period.
As a preferred embodiment of the invention, the process of operation of the flow execution analysis unit is as follows:
the method comprises the steps of obtaining a limit deviation value of corresponding circuit board element assembly in a circuit board assembly process and a real-time position deviation distance of the corresponding circuit board element in the assembly process, and comparing the limit deviation value of the corresponding circuit board element assembly in the circuit board assembly process and the real-time position deviation distance of the corresponding circuit board element in the assembly process with a limit deviation value threshold and a real-time position deviation distance threshold respectively.
As a preferred embodiment of the present invention, if the assembly limit deviation value of the corresponding circuit board element exceeds the limit deviation value threshold in the circuit board assembly process, or the real-time position deviation distance of the corresponding circuit board element exceeds the real-time position deviation distance threshold in the assembly process, determining that the circuit board assembly process is abnormal in analysis, generating a process execution abnormal signal and sending the process execution abnormal signal to the monitoring center;
if the limit deviation value of the circuit board component assembly does not exceed the limit deviation value threshold value and the real-time position deviation distance of the circuit board component in the circuit board assembly process does not exceed the real-time position deviation distance threshold value, judging that the circuit board assembly process is normal in execution analysis, generating a process execution normal signal and sending the process execution normal signal to a monitoring center.
As a preferred embodiment of the invention, after the monitoring center receives the flow execution abnormal signal, the current circuit board execution flow is installed and monitored, a monitoring period is set after the current circuit board component is installed, and no offset of the circuit board component position is ensured in the monitoring period.
As a preferred embodiment of the invention, the assembly device analysis unit operates as follows:
obtaining the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position and the buffer time duration floating quantity of corresponding operation execution of the circuit board assembly process execution device, and comparing the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position and the buffer time duration floating quantity of corresponding operation execution of the circuit board assembly process execution device with a position deviation frequency threshold value and a buffer time duration floating quantity threshold value respectively.
As a preferred implementation mode of the invention, if the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position exceeds a position deviation frequency threshold value, or the buffer time floating amount of corresponding operation execution of the circuit board assembly process execution device exceeds a buffer time floating amount threshold value, the circuit board assembly process corresponding device is judged to be abnormal in execution, an assembly device operation low-efficiency signal is generated, and the assembly device operation low-efficiency signal is sent to a monitoring center; after receiving the operation low-efficiency signal of the assembly equipment, the monitoring center detects the operation and maintenance of the corresponding circuit board assembly equipment;
if the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution equipment and the preset assembly position does not exceed the position deviation frequency threshold value, and the floating amount of the buffer duration of the corresponding operation execution of the circuit board assembly process execution equipment does not exceed the floating amount threshold value of the buffer duration, judging that the circuit board assembly process corresponding equipment is normally executed, generating an assembly equipment operation high-efficiency signal and sending the assembly equipment operation high-efficiency signal to a monitoring center.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the process delay analysis unit carries out delay analysis on the current circuit board assembly process, judges whether the current assembly progress is influenced according to the delay of the real-time circuit board assembly process, thereby ensuring that the real-time circuit board assembly progress is not influenced by the process.
2. In the invention, the flow execution analysis unit performs execution analysis on the circuit board real-time assembly flow, and judges whether the execution qualification of the current circuit board assembly flow is qualified, so that the circuit board assembly progress is managed and controlled in real time, the circuit board assembly efficiency is improved, the circuit board assembly progress can be found in time when the circuit board assembly progress is influenced, and the influence of the circuit board assembly progress is reduced to the minimum.
3. According to the invention, the assembly equipment analysis unit detects the performance of the circuit board assembly equipment and judges whether the efficiency of the circuit board assembly equipment is qualified, so that the problem that the circuit board assembly process is reworked easily due to the normal operation efficiency of the circuit board but not in a high-efficiency state, and the assembly efficiency of the circuit board is reduced is avoided.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
Fig. 1 is a schematic block diagram of a system for monitoring assembly progress of a PCB circuit board according to the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1, the system for monitoring the assembly progress of a PCB includes a monitoring center, wherein the monitoring center is communicatively connected with a process delay analysis unit, a flow execution analysis unit and an assembly equipment analysis unit, and the monitoring center is in bidirectional communication connection with the process delay analysis unit, the flow execution analysis unit and the assembly equipment analysis unit;
real-time monitoring is carried out on the real-time assembly progress in the PCB assembly process, so that the assembly progress of the PCB is guaranteed to be qualified, the influence on the assembly processing progress is avoided, a monitoring center generates a process delay analysis signal and sends the process delay analysis signal to a process delay analysis unit, the process delay analysis unit receives the process delay analysis signal and then carries out delay analysis on the current PCB assembly process, whether the current assembly progress is influenced or not is judged according to the delay of the real-time PCB assembly process, and therefore the real-time PCB assembly progress is guaranteed not to be influenced by the process, and the PCB assembly process is required to be stationary or to be reacted after the process flow is finished in the prior art, so that the real-time delay analysis can be used for effectively controlling the PCB assembly, and invalid waiting generated in the process execution process is avoided;
counting each flow of the current circuit board assembly process, acquiring the delay time of each flow of the process, and marking the acquired delay time as a delay threshold, wherein in the prior art, the circuit board is subjected to the next step, such as spot welding, after waiting for a period of time after the process flow is executed during assembly, and the circuit board is subjected to the buffer period of time after the spot welding is finished, and then is continuously assembled;
collecting the deviation value floating span of each flow delay time length and delay threshold value in the current circuit board assembly process and the delay time length floating frequency of the same flow in the circuit board assembly process, and comparing the deviation value floating span of each flow delay time length and delay threshold value in the current circuit board assembly process and the delay time length floating frequency of the same flow in the circuit board assembly process with the deviation value floating span threshold value and the delay time length floating frequency threshold value respectively:
if the deviation value floating span of each flow delay time length and the delay threshold value in the current circuit board assembly process exceeds the deviation value floating span threshold value, or the delay time length floating frequency of the same flow in the circuit board assembly process exceeds the delay time length floating frequency threshold value, judging that the delay time length analysis of the current circuit board assembly process is abnormal, generating a delay irregular signal and sending the delay irregular signal to a monitoring center, and after receiving the delay irregular signal, the monitoring center monitors each flow connection time interval of the current circuit board assembly process in real time and performs non-fixed setting on each flow connection time interval;
if the deviation value floating span of each flow delay time length and the delay threshold value in the current circuit board assembly process does not exceed the deviation value floating span threshold value and the delay time length floating frequency of the same flow in the circuit board assembly process does not exceed the delay time length floating frequency threshold value, judging that the delay time length analysis of the current circuit board assembly process is normal, generating a delay regular signal and sending the delay regular signal to a monitoring center, and after receiving the delay regular signal, the monitoring center monitors each flow connection time period of the current circuit board assembly process in a time-sharing manner and fixedly sets each flow connection time period;
after the monitoring center completes process delay analysis, a process execution analysis signal is generated and sent to a process execution analysis unit, and after the process execution analysis unit receives the process execution analysis signal, the process execution analysis unit carries out execution analysis on the circuit board real-time assembly process and judges whether the execution qualification of the current circuit board assembly process is qualified or not, so that the circuit board assembly progress is managed and controlled in real time, the circuit board assembly efficiency is improved, the circuit board assembly progress can be found in time when the circuit board assembly progress is influenced, and the influence of the circuit board assembly progress is reduced to the minimum;
acquiring a limit deviation value of corresponding circuit board element assembly and a real-time position deviation distance of the corresponding circuit board element in an assembly process of the circuit board, and comparing the limit deviation value of corresponding circuit board element assembly and the real-time position deviation distance of the corresponding circuit board element in the assembly process of the circuit board with a limit deviation value threshold and a real-time position deviation distance threshold respectively:
if the limit deviation value of the assembly of the corresponding circuit board element exceeds the limit deviation value threshold value or the real-time position deviation distance of the corresponding circuit board element exceeds the real-time position deviation distance threshold value in the assembly process of the circuit board, judging that the assembly process of the circuit board is abnormal in execution analysis, generating a process execution abnormal signal and sending the process execution abnormal signal to a monitoring center; after receiving the abnormal flow execution signal, the monitoring center carries out installation monitoring on the current circuit board execution flow, sets a monitoring period after the current circuit board component is installed, and ensures that the position of the circuit board component is free from offset in the monitoring period;
if the limit deviation value of the circuit board component assembly does not exceed the limit deviation value threshold value and the real-time position deviation distance of the circuit board component assembly does not exceed the real-time position deviation distance threshold value, judging that the circuit board assembly process is normal in execution analysis, generating a process execution normal signal and sending the process execution normal signal to a monitoring center;
after the monitoring center receives the normal signal of the process execution, generating an assembly equipment analysis signal and sending the assembly equipment analysis signal to an assembly equipment analysis unit, and after the assembly equipment analysis unit receives the assembly equipment analysis signal, performing performance detection on the circuit board assembly equipment to judge whether the efficiency of the circuit board assembly equipment is qualified, thereby avoiding that the operation efficiency of the circuit board is normal but not in a high-efficiency state, and easily causing reworking of the assembly process of the circuit board, so that the assembly efficiency of the circuit board is reduced;
obtaining the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position and the buffer time floating amount of corresponding operation execution of the circuit board assembly process execution device, and comparing the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position and the buffer time floating amount of corresponding operation execution of the circuit board assembly process execution device with a position deviation frequency threshold value and a buffer time floating amount threshold value respectively:
if the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position exceeds a position deviation frequency threshold value, or the buffer time floating quantity of corresponding operation execution of the circuit board assembly process execution device exceeds a buffer time floating quantity threshold value, judging that the circuit board assembly process corresponding device is abnormal in execution, generating an assembly device operation low-efficiency signal and sending the assembly device operation low-efficiency signal to a monitoring center; after receiving the operation low-efficiency signal of the assembly equipment, the monitoring center detects the operation and maintenance of the corresponding circuit board assembly equipment;
if the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution equipment and the preset assembly position does not exceed the position deviation frequency threshold value, and the floating amount of the buffer duration of the corresponding operation execution of the circuit board assembly process execution equipment does not exceed the floating amount threshold value of the buffer duration, judging that the circuit board assembly process corresponding equipment is normally executed, generating an assembly equipment operation high-efficiency signal and sending the assembly equipment operation high-efficiency signal to a monitoring center.
When the circuit board assembly process delay analysis unit is used, the process delay analysis unit carries out delay analysis on the current circuit board assembly process, judges whether the current assembly progress is affected according to the delay of the real-time circuit board assembly process, generates a delay irregular signal or a delay regular signal through analysis, and sends the delay irregular signal or the delay regular signal to the monitoring center; the flow execution analysis unit is used for executing analysis on the real-time assembly flow of the circuit board; generating a flow execution abnormal signal or a flow execution normal signal through analysis and sending the flow execution abnormal signal or the flow execution normal signal to a monitoring center; after receiving the normal signal of the process execution, the monitoring center generates an assembly equipment analysis signal and sends the assembly equipment analysis signal to an assembly equipment analysis unit, and after receiving the assembly equipment analysis signal, the assembly equipment analysis unit detects the performance of the circuit board assembly equipment and judges whether the efficiency of the circuit board assembly equipment is qualified.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims (9)

  1. The system comprises a monitoring center, wherein the monitoring center is in communication connection with a process delay analysis unit, a flow execution analysis unit and an assembly equipment analysis unit; the method is characterized in that:
    the monitoring center generates a process delay analysis signal and sends the process delay analysis signal to the process delay analysis unit, the process delay analysis unit receives the process delay analysis signal, then carries out delay analysis on the current circuit board assembly process, judges whether the current assembly progress is affected according to the delay of the real-time circuit board assembly process, generates a delay irregular signal or a delay regular signal through analysis, and sends the delay irregular signal or the delay regular signal to the monitoring center;
    after the monitoring center completes the process delay analysis, generating a flow execution analysis signal and sending the flow execution analysis signal to a flow execution analysis unit, and after the flow execution analysis unit receives the flow execution analysis signal, performing execution analysis on the real-time assembly flow of the circuit board; generating a flow execution abnormal signal or a flow execution normal signal through analysis and sending the flow execution abnormal signal or the flow execution normal signal to a monitoring center;
    after receiving the normal signal of the process execution, the monitoring center generates an assembly equipment analysis signal and sends the assembly equipment analysis signal to an assembly equipment analysis unit, and after receiving the assembly equipment analysis signal, the assembly equipment analysis unit detects the performance of the circuit board assembly equipment and judges whether the efficiency of the circuit board assembly equipment is qualified.
  2. 2. The system for monitoring the assembly progress of a PCB board according to claim 1, wherein the process delay analysis unit operates as follows:
    counting all the processes of the current circuit board assembly process, acquiring the delay time of each process and marking the acquired delay time as a delay threshold;
    the method comprises the steps of collecting the deviation value floating span of each flow delay time length and delay threshold value in the current circuit board assembly process and the delay time length floating frequency of the same flow in the circuit board assembly process, and comparing the deviation value floating span of each flow delay time length and delay threshold value in the current circuit board assembly process and the delay time length floating frequency of the same flow in the circuit board assembly process with the deviation value floating span threshold value and the delay time length floating frequency threshold value respectively.
  3. 3. The system for monitoring the assembly progress of the PCB circuit board according to claim 2, wherein if the deviation value floating span of each flow delay time length and the delay threshold value in the current circuit board assembly process exceeds the deviation value floating span threshold value or the delay time length floating frequency of the same flow in the circuit board assembly process exceeds the delay time length floating frequency threshold value, the analysis of the delay time length of the current circuit board assembly process is judged to be abnormal, a delay irregular signal is generated, and the delay irregular signal is sent to a monitoring center;
    if the deviation value floating span of each flow delay time length and the delay threshold value in the current circuit board assembly process does not exceed the deviation value floating span threshold value and the delay time length floating frequency of the same flow in the circuit board assembly process does not exceed the delay time length floating frequency threshold value, judging that the delay time length analysis of the current circuit board assembly process is normal, generating a delay regular signal and sending the delay regular signal to a monitoring center.
  4. 4. The system for monitoring the assembly progress of the PCB according to claim 3, wherein the monitoring center monitors each process connection period of the current assembly process of the PCB in real time after receiving the delay irregular signal, and performs non-fixed setting on each process connection period; after receiving the delay regular signal, the monitoring center monitors each flow connection period of the current circuit board assembly process in a time-sharing manner, and fixedly sets each flow connection period.
  5. 5. The system for monitoring the assembly progress of a PCB board according to claim 1, wherein the process of the flow execution analysis unit is as follows:
    the method comprises the steps of obtaining a limit deviation value of corresponding circuit board element assembly in a circuit board assembly process and a real-time position deviation distance of the corresponding circuit board element in the assembly process, and comparing the limit deviation value of the corresponding circuit board element assembly in the circuit board assembly process and the real-time position deviation distance of the corresponding circuit board element in the assembly process with a limit deviation value threshold and a real-time position deviation distance threshold respectively.
  6. 6. The system according to claim 5, wherein if the assembly limit deviation value of the corresponding circuit board element exceeds the limit deviation value threshold or the real-time position deviation distance of the corresponding circuit board element exceeds the real-time position deviation distance threshold in the assembly process, determining that the circuit board assembly process is abnormal in analysis, generating a process execution abnormal signal and transmitting the process execution abnormal signal to the monitoring center;
    if the limit deviation value of the circuit board component assembly does not exceed the limit deviation value threshold value and the real-time position deviation distance of the circuit board component in the circuit board assembly process does not exceed the real-time position deviation distance threshold value, judging that the circuit board assembly process is normal in execution analysis, generating a process execution normal signal and sending the process execution normal signal to a monitoring center.
  7. 7. The system according to claim 6, wherein the monitoring center monitors the current circuit board execution flow after receiving the flow execution abnormality signal, sets a monitoring period after the current circuit board component is installed, and ensures no offset of the circuit board component position during the monitoring period.
  8. 8. The system for monitoring the assembly progress of a PCB board according to claim 1, wherein the operation process of the assembly equipment analysis unit is as follows:
    obtaining the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position and the buffer time duration floating quantity of corresponding operation execution of the circuit board assembly process execution device, and comparing the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position and the buffer time duration floating quantity of corresponding operation execution of the circuit board assembly process execution device with a position deviation frequency threshold value and a buffer time duration floating quantity threshold value respectively.
  9. 9. The system of claim 8, wherein if the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution device and the preset assembly position exceeds a position deviation frequency threshold, or the floating amount of the buffer duration of the corresponding operation execution of the circuit board assembly process execution device exceeds the floating amount threshold of the buffer duration, determining that the corresponding device of the circuit board assembly process is abnormal, generating an assembly device operation inefficiency signal and transmitting the assembly device operation inefficiency signal to the monitoring center; after receiving the operation low-efficiency signal of the assembly equipment, the monitoring center detects the operation and maintenance of the corresponding circuit board assembly equipment;
    if the frequency of displacement deviation between the corresponding assembly position of the current circuit board assembly process execution equipment and the preset assembly position does not exceed the position deviation frequency threshold value, and the floating amount of the buffer duration of the corresponding operation execution of the circuit board assembly process execution equipment does not exceed the floating amount threshold value of the buffer duration, judging that the circuit board assembly process corresponding equipment is normally executed, generating an assembly equipment operation high-efficiency signal and sending the assembly equipment operation high-efficiency signal to a monitoring center.
CN202310953684.6A 2023-08-01 2023-08-01 PCB assembly progress monitoring system Active CN116663868B (en)

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CN202310953684.6A CN116663868B (en) 2023-08-01 2023-08-01 PCB assembly progress monitoring system

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CN202310953684.6A CN116663868B (en) 2023-08-01 2023-08-01 PCB assembly progress monitoring system

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CN116663868A true CN116663868A (en) 2023-08-29
CN116663868B CN116663868B (en) 2024-04-19

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Citations (10)

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