CN116916550A - Printed circuit board manufacturing control system - Google Patents
Printed circuit board manufacturing control system Download PDFInfo
- Publication number
- CN116916550A CN116916550A CN202310864368.1A CN202310864368A CN116916550A CN 116916550 A CN116916550 A CN 116916550A CN 202310864368 A CN202310864368 A CN 202310864368A CN 116916550 A CN116916550 A CN 116916550A
- Authority
- CN
- China
- Prior art keywords
- value
- risk
- preset
- threshold
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 112
- 238000004458 analytical method Methods 0.000 claims abstract description 92
- 238000011156 evaluation Methods 0.000 claims abstract description 74
- 238000012545 processing Methods 0.000 claims abstract description 27
- 230000035484 reaction time Effects 0.000 claims abstract description 27
- 230000005856 abnormality Effects 0.000 claims abstract description 11
- 238000013441 quality evaluation Methods 0.000 claims abstract description 10
- 230000035945 sensitivity Effects 0.000 claims description 36
- 230000002159 abnormal effect Effects 0.000 claims description 27
- 238000003754 machining Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000012502 risk assessment Methods 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 101100366707 Arabidopsis thaliana SSL11 gene Proteins 0.000 claims description 2
- 101100366562 Panax ginseng SS12 gene Proteins 0.000 claims description 2
- 238000010921 in-depth analysis Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 24
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000006854 communication Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/227—Drying of 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 relates to the technical field of printed circuit board manufacturing control, in particular to a printed circuit board manufacturing control system, which comprises a server, an abnormality supervision unit, a reaction analysis unit, a feedback analysis unit, a warning unit, a self-checking analysis unit and an early warning display unit; according to the invention, analysis is performed from two angles of internal product data and external alarm, so that the control effect condition of the drying equipment is accurately known, namely, the product data is subjected to processing quality evaluation analysis to judge the working efficiency condition of the drying equipment, the control effect of the drying equipment is directly reflected, secondary management is performed in time, the working efficiency and the processing quality of the drying equipment are improved, sensitive control evaluation analysis is performed on the reaction time length, the control condition of the drying equipment on the alarm lamp is intuitively known, the overall control efficiency condition of the drying equipment is indirectly reflected, further, timely management and maintenance are performed, and the control effect of the drying equipment on the alarm lamp is improved.
Description
Technical Field
The invention relates to the technical field of printed circuit board manufacturing control, in particular to a printed circuit board manufacturing control system.
Background
A printed circuit board, also called a printed wiring board, is an important electronic component, is a support for electronic components, and is a carrier for electrically interconnecting the electronic components. Because it is made by electronic printing, so called "printed" circuit board, in the course of circuit board manufacture, before copper plating process, the circuit board needs to be washed and baked, etc. pretreatment processes;
at present, the drying operation is required before the circuit board is subjected to the formal processing flow (namely, the circuit board is subjected to drying processing), but the existing drying control system has the problems of untimely early warning and delayed early warning, so that the control effect and early warning effect of the drying equipment are reduced, the failure risk of the drying equipment is further increased, the drying equipment with the risk cannot be reasonably controlled, the control accuracy and the control efficiency of the drying equipment are further reduced, and the overall processing efficiency of the drying equipment is reduced;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to provide a printed circuit board manufacturing control system for solving the technical defects, and the control effect of a drying device is accurately known by analyzing from two angles of internal product data and external alarms, namely, the product data is subjected to processing quality evaluation analysis to judge the working efficiency of the drying device, the control effect of the drying device is directly reflected so as to timely carry out secondary management, the working efficiency and the processing quality of the drying device are improved, the reaction time is subjected to sensitive control evaluation analysis so as to intuitively know the control condition of the drying device on an alarm lamp, indirectly reflect the overall control efficiency of the drying device, and further timely manage and maintain the control effect of the drying device on the alarm lamp.
The aim of the invention can be achieved by the following technical scheme: a printed circuit board manufacturing control system comprises a server, an abnormality supervision unit, a reaction analysis unit, a feedback analysis unit, a warning unit, a self-checking analysis unit and an early warning display unit;
when the server generates a management instruction, the management instruction is sent to an abnormality monitoring unit and a reaction analysis unit, the abnormality monitoring unit immediately collects drying data of the drying equipment for processing the printed circuit board when receiving the management instruction, the drying data comprises running current of the drying equipment, an internal temperature value and a line loss value of a temperature sensor, the drying data is subjected to monitoring early warning analysis and deep comparison analysis, and the obtained abnormality signal is sent to a feedback analysis unit and a warning unit;
the feedback analysis unit immediately carries out deep analysis on the drying data after receiving the abnormal signal, and sends the obtained primary management signal, secondary management signal and tertiary management signal to the early warning display unit, wherein the primary management signal, secondary management signal and tertiary management signal are collectively called as management signal, and the management signal is sent to the self-checking analysis unit;
the self-checking analysis unit immediately collects product data of the drying equipment after management after receiving the management signal, wherein the product data comprises the surface crack length and the surface temperature value of the printed circuit board, carries out processing quality evaluation analysis on the product data, and sends the obtained regulation signal and feedback signal to the early warning display unit through the feedback analysis unit;
and the reaction analysis unit immediately acquires the reaction time of the alarm lamp after receiving the pipe conveying instruction, carries out sensitive control evaluation analysis on the reaction time, and sends the obtained delay signal to the early warning display unit, wherein the reaction time refers to the time between the time when the alarm lamp receives the signal and the time when the alarm lamp is on.
Preferably, the supervision and early warning analysis process of the abnormal supervision unit is as follows:
the first step: acquiring the time length from the starting operation time to the ending operation time of the drying equipment for processing the printed circuit board, marking the time length as a time threshold, dividing the time threshold into i subtime periods, wherein i is a natural number larger than zero, acquiring the operation current of the drying equipment in each subtime period, taking the time as an X axis, further acquiring the difference value between the operation currents corresponding to the two connected subtime periods, marking the difference value as a fluctuation value, comparing the fluctuation value with a preset fluctuation value threshold, and marking the fluctuation value which is larger than the preset fluctuation value threshold as 1 when the fluctuation value is larger than the preset fluctuation value threshold, so that the sum value of all 1' is marked as a stable risk value;
and a second step of: acquiring an internal temperature value of drying equipment in each sub-time period, taking time as an X axis, taking internal temperature as Y, establishing a rectangular coordinate system, drawing an internal temperature value curve in a dot drawing mode, drawing a preset internal temperature value threshold curve in the coordinate system, marking an area surrounded by a line segment above the preset internal temperature value threshold curve and the preset internal temperature value threshold curve as a risk area, marking a time length corresponding to the line segment above the preset internal temperature value threshold curve as a risk time length, and marking a ratio between the risk area and the risk time length as a unit risk area value;
and a third step of: the method comprises the steps of obtaining a line loss value of a temperature sensor in drying equipment in a time threshold, comparing the line loss value with a preset line loss value threshold, and marking a part with the line loss value larger than the preset line loss value threshold as a fault loss value if the line loss value is larger than the preset line loss value threshold.
Preferably, the in-depth comparison and analysis process of the abnormal supervision unit is as follows:
comparing the stable risk value, the unit risk area value and the fault loss value with a preset stable risk value threshold value, a preset unit risk area value threshold value and a preset fault loss value threshold value which are recorded and stored in the stable risk value, the unit risk area value and the fault loss value through analysis:
if the stable risk value, the unit risk area value and the fault loss value are all smaller than or equal to a preset stable risk value threshold, a preset unit risk area value threshold and a preset fault loss value threshold, no signal is generated;
if the stable risk value, the unit risk area value and the fault loss value are not all smaller than or equal to the preset stable risk value threshold, the preset unit risk area value threshold and the preset fault loss value threshold, an abnormal signal is generated.
Preferably, the feedback analysis unit performs an in-depth analysis process on the drying data as follows:
s1: obtaining a stable risk value, a unit risk area value and a fault loss value of drying equipment corresponding to an abnormal signal in a time threshold, and respectively marking the stable risk value, the unit risk area value and the fault loss value as WD, DM and GS;
s12: according to the formulaObtaining a risk fault evaluation coefficient, wherein a1, a2 and a3 are preset scale factor coefficients of a stable risk value, a unit risk area value and a fault loss value respectively, a1, a2 and a3 are positive numbers larger than zero, a4 is a preset correction coefficient, the value is 2.342, F is a risk fault evaluation coefficient, in addition, a standard risk fault evaluation coefficient of normal drying equipment is obtained, a part of the risk fault evaluation coefficient F exceeding the standard risk fault evaluation coefficient is marked as a risk evaluation value, and the risk evaluation value is compared with a preset risk evaluation value interval recorded and stored in the risk evaluation value:
if the risk assessment value is larger than the maximum value in the preset risk assessment value interval, generating a first-level management signal;
if the risk evaluation value is within the preset risk evaluation value interval value, generating a secondary management signal;
and if the risk evaluation value is smaller than the minimum value in the preset risk evaluation value interval, generating a three-level management signal.
Preferably, the processing quality evaluation and analysis process of the self-checking analysis unit is as follows:
collecting the time length from the starting working time to the ending working time after the management of the drying equipment, marking the time length as feedback time length, marking the printed circuit board in the drying equipment as k, wherein k is a natural number larger than zero, acquiring the surface crack length and the surface temperature value of the printed circuit board in the feedback time length, respectively marking the surface crack length and the surface temperature value as BHk and BWk, comparing the surface crack length BHk and the surface temperature value BWk with a preset surface crack length threshold value and a preset temperature value threshold value, analyzing the surface crack length BHk is larger than the preset surface crack length threshold value or the surface temperature value BWk is larger than the preset temperature value threshold value, marking the corresponding printed circuit board as a risk board, marking the corresponding printed circuit board as a normal board if the surface crack length BHk is smaller than or equal to a preset surface crack length threshold value and the surface temperature value BWk is smaller than or equal to a preset temperature value threshold value, respectively obtaining the total number of the risk board and the normal board, respectively marking the total number of the risk board and the normal board as an abnormal value YC and a normal value ZC, further marking the ratio of the normal value ZC and the sum of the abnormal value YC and the normal value ZC as a machining evaluation coefficient, and comparing the machining evaluation coefficient with a preset machining evaluation coefficient threshold value recorded and stored in the machining evaluation coefficient.
If the ratio of the machining evaluation coefficient to the preset machining evaluation coefficient threshold is less than or equal to one, generating a regulating signal;
and if the ratio of the machining evaluation coefficient to the preset machining evaluation coefficient threshold is greater than one, generating a feedback signal.
Preferably, the sensitivity control evaluation analysis process of the reaction analysis unit is as follows:
SS1: acquiring the time length from the beginning of the use time of the alarm lamp to the current time, marking the time length as the use time length, acquiring the working times of the alarm lamp in the use time length, marking the working times as g, wherein g is a natural number larger than zero, acquiring the reaction time length of each time of the alarm lamp in the use time length, taking the working times as an X axis, setting up a rectangular coordinate system with the reaction time length as a Y axis, drawing a reaction time length curve in a dot drawing manner, acquiring the difference value between two endpoints of an ascending end from the reaction time length curve, marking the difference value as a reaction delay value, simultaneously acquiring the difference value between two endpoints of a descending section from the reaction time length curve, marking the difference value as a reaction sensitivity value, and marking the result obtained by subtracting the sum value of the reaction sensitivity values from the sum value of the reaction delay values as a control sensitivity trend value;
SS12: comparing the control sensitivity trend value with a preset control sensitivity trend value threshold value recorded and stored in the control sensitivity trend value, and analyzing the control sensitivity trend value:
if the control sensitivity trend value is smaller than or equal to a preset control sensitivity trend value threshold, no signal is generated;
and if the control sensitivity trend value is larger than the preset control sensitivity trend value threshold, generating a delay signal.
The beneficial effects of the invention are as follows:
(1) The invention collects the drying data of the drying equipment for processing the printed circuit board and carries out supervision early warning analysis, judges whether the welding and drying equipment has abnormal risks, so as to improve the manufacturing efficiency of the printed circuit, and is beneficial to improving the accuracy of analysis results by carrying out evaluation analysis from three dimensions of a stable risk value, a unit risk area value and a fault loss value, so as to timely carry out fault early warning, and judges the abnormal risk grade condition of the drying equipment by means of data feedback and deep analysis, so as to reasonably and accurately manage the drying equipment, reasonably and accurately manage the drying equipment according to different management grades, improve the management and control effect of the manufacturing of the printed circuit board, and simultaneously improve the early warning effect of the drying equipment;
(2) According to the invention, analysis is performed from two angles of internal product data and external alarm, so that the control effect condition of the drying equipment is accurately known, namely, the product data is subjected to processing quality evaluation analysis to judge the working efficiency condition of the drying equipment, the control effect of the drying equipment is directly reflected, secondary management is performed in time, the working efficiency and the processing quality of the drying equipment are improved, sensitive control evaluation analysis is performed on the reaction time length, the control condition of the drying equipment on the alarm lamp is intuitively known, the overall control efficiency condition of the drying equipment is indirectly reflected, further, timely management and maintenance are performed, and the control effect of the drying equipment on the alarm lamp is improved.
Drawings
The invention is further described below with reference to the accompanying drawings;
FIG. 1 is a flow chart of the system of the present invention;
FIG. 2 is a partial analysis of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but 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.
Example 1:
referring to fig. 1 to 2, the present invention is a printed circuit board manufacturing control system, which includes a server, an anomaly monitoring unit, a reaction analysis unit, a feedback analysis unit, a warning unit, a self-checking analysis unit and an early warning display unit, wherein the server is in unidirectional communication connection with the anomaly monitoring unit and the reaction analysis unit, the anomaly monitoring unit is in unidirectional communication connection with the feedback analysis unit and the warning unit, the feedback analysis unit is in bidirectional communication connection with the self-checking analysis unit, the feedback analysis unit is in unidirectional communication connection with the early warning display unit, and the reaction analysis unit is in unidirectional communication connection with the early warning display unit;
when the server generates a management command, the management command is sent to an abnormal supervision unit and a reaction analysis unit, the abnormal supervision unit immediately collects drying data of the drying equipment for processing the printed circuit board when receiving the management command, the drying data comprise running current and internal temperature value of the drying equipment and line loss value of a temperature sensor, and the drying data are subjected to supervision and early warning analysis to judge whether abnormal risks exist in the welding and drying equipment so as to improve the manufacturing efficiency of the printed circuit, and the specific supervision and early warning analysis process is as follows:
acquiring the time length from the starting operation time to the ending operation time of the drying equipment for processing the printed circuit board, marking the time length as a time threshold, dividing the time threshold into i subperiods, wherein i is a natural number larger than zero, acquiring the operation current of the drying equipment in each subperiod, taking time as an X axis, further acquiring the difference value between the operation currents corresponding to the two connected subperiods, marking the difference value as a fluctuation value, comparing the fluctuation value with a preset fluctuation value threshold, and marking the fluctuation value corresponding to the fluctuation value larger than the preset fluctuation value threshold as 1 if the fluctuation value is larger than the preset fluctuation value threshold, so that the sum value of all 1' is marked as a stable risk value, wherein the stable risk value is an influence parameter reflecting the operation of the drying equipment;
acquiring an internal temperature value of the drying equipment in each sub-time period, taking time as an X axis, taking the internal temperature as Y, establishing a rectangular coordinate system, drawing an internal temperature value curve in a dot drawing mode, drawing a preset internal temperature value threshold curve in the coordinate system, further marking an area surrounded by a line segment above the preset internal temperature value threshold curve and the preset internal temperature value threshold curve as a risk area, simultaneously marking a time length corresponding to the line segment above the preset internal temperature value threshold curve as a risk time length, further marking a ratio between the risk area and the risk time length as a unit risk area value, and the fact that the unit risk area value is an influence parameter reflecting the operation of the drying equipment, wherein the larger the value of the unit risk area value is, the greater the operation fault risk of the drying equipment is;
acquiring a line loss value of an internal temperature sensor of the drying equipment in a time threshold, comparing the line loss value with a preset line loss value threshold, if the line loss value is larger than the preset line loss value threshold, marking a part with the line loss value larger than the preset line loss value threshold as a fault loss value, and comparing a stable risk value, a unit risk area value and the fault loss value with a preset stable risk value threshold, a preset unit risk area value threshold and a preset fault loss value which are recorded and stored in the stable risk value, the unit risk area value and the fault loss value:
if the stable risk value, the unit risk area value and the fault loss value are all smaller than or equal to a preset stable risk value threshold, a preset unit risk area value threshold and a preset fault loss value threshold, no signal is generated;
if the stable risk value, the unit risk area value and the fault loss value are not met and are smaller than or equal to a preset stable risk value threshold, a preset unit risk area value threshold and a preset fault loss value threshold, an abnormal signal is generated and sent to a feedback analysis unit and a warning unit, and the warning unit immediately controls a warning lamp on the drying equipment to be a yellow lamp after receiving the abnormal signal, so that fault early warning can be performed timely, and the early warning effect of the drying equipment is improved;
the feedback analysis unit immediately carries out deep analysis on the drying data after receiving the abnormal signal, and judges the abnormal risk level condition of the drying equipment so as to reasonably and accurately manage the drying equipment, and the specific deep analysis process is as follows:
obtaining a stable risk value, a unit risk area value and a fault loss value of drying equipment corresponding to an abnormal signal in a time threshold, and respectively marking the stable risk value, the unit risk area value and the fault loss value as WD, DM and GS;
according to the formulaObtaining a risk fault evaluation coefficient, wherein a1, a2 and a3 are respectively preset scale factor coefficients of a stable risk value, a unit risk area value and a fault loss value, the scale factor coefficients are used for correcting deviation of various parameters in a formula calculation process, so that calculation results are more accurate, a1, a2 and a3 are positive numbers larger than zero, a4 is a preset correction coefficient, a value is 2.342, F is a risk fault evaluation coefficient, in addition, a standard risk fault evaluation coefficient of normal drying equipment is obtained, a part of the risk fault evaluation coefficient F exceeding the standard risk fault evaluation coefficient is marked as a risk evaluation value, and the risk evaluation value is compared with a preset risk evaluation value interval recorded and stored in the risk evaluation value:
if the risk assessment value is larger than the maximum value in the preset risk assessment value interval, generating a first-level management signal;
if the risk evaluation value is within the preset risk evaluation value interval value, generating a secondary management signal;
if the risk evaluation value is smaller than the minimum value in the preset risk evaluation value interval, three-level management signals are generated, wherein the management degrees corresponding to the first-level management signals, the second-level management signals and the third-level management signals are sequentially reduced, the first-level management signals, the second-level management signals and the third-level management signals are collectively called as management signals, the management signals are sent to the self-checking analysis unit, the first-level management signals, the second-level management signals and the third-level management signals are sent to the early warning display unit, and the early warning display unit immediately makes early warning schemes corresponding to the first-level management signals, the second-level management signals and the third-level management signals after receiving the first-level management signals, the second-level management signals and the third-level management signals, so that the drying equipment is managed reasonably and accurately according to different management levels, and the management effect of printed circuit board manufacturing is improved.
Example 2:
the self-checking analysis unit immediately collects the product data of the drying equipment after management after receiving the management signal, wherein the product data comprises the surface crack length and the surface temperature value of the printed circuit board, and carries out processing quality evaluation analysis on the product data to judge the working efficiency condition of the drying equipment, and the specific processing quality evaluation analysis process is as follows:
collecting the time length from the starting working time to the ending working time after the management of the drying equipment, marking the time length as feedback time length, marking the printed circuit board in the drying equipment as k, wherein k is a natural number larger than zero, acquiring the surface crack length and the surface temperature value of the printed circuit board in the feedback time length, respectively marking the surface crack length and the surface temperature value as BHk and BWk, comparing the surface crack length BHk and the surface temperature value BWk with a preset surface crack length threshold value and a preset temperature value threshold value, analyzing the surface crack length BHk is larger than the preset surface crack length threshold value or the surface temperature value BWk is larger than the preset temperature value threshold value, marking the corresponding printed circuit board as a risk board, marking the corresponding printed circuit board as a normal board if the surface crack length BHk is smaller than or equal to a preset surface crack length threshold value and the surface temperature value BWk is smaller than or equal to a preset temperature value threshold value, respectively obtaining the total number of the risk board and the normal board, respectively marking the total number of the risk board and the normal board as an abnormal value YC and a normal value ZC, further marking the ratio of the normal value ZC and the sum of the abnormal value YC and the normal value ZC as a machining evaluation coefficient, and comparing the machining evaluation coefficient with a preset machining evaluation coefficient threshold value recorded and stored in the machining evaluation coefficient.
If the ratio of the machining evaluation coefficient to the preset machining evaluation coefficient threshold is less than or equal to one, generating a regulating signal;
if the ratio of the processing evaluation coefficient to the preset processing evaluation coefficient threshold is greater than one, generating a feedback signal, sending a regulation signal and the feedback signal to an early warning display unit through a feedback analysis unit, immediately displaying early warning characters of 'management and control not up to standard' and 'management and control up to standard' corresponding to the regulation signal and the feedback signal after the early warning display unit receives the regulation signal and the feedback signal, and further helping to improve the supervision of the managed drying equipment so as to timely carry out secondary management, improve the working efficiency and the processing quality of the drying equipment, and simultaneously helping to improve the supervision and early warning effect of the drying equipment in a data feedback mode;
the reaction analysis unit immediately collects the reaction time length of the alarm lamp after receiving the pipe conveying instruction, carries out sensitive control evaluation analysis on the reaction time length, judges whether the control of the alarm lamp by the drying equipment is normal or not so as to know the sensitive control change condition of the alarm lamp, further carries out timely management and maintenance, improves the control effect of the alarm lamp by the drying equipment, and the specific sensitive control evaluation analysis process is as follows:
acquiring the time length from the beginning of the use time of the alarm lamp to the current time, marking the time length as the use time length, acquiring the working times of the alarm lamp in the use time length, marking the working times as g, and g as a natural number larger than zero, acquiring the reaction time length of each time of the alarm lamp in the use time length, wherein the reaction time length refers to the time length from the moment when the alarm lamp receives a signal to the moment when the alarm lamp is on, setting up a rectangular coordinate system by taking the working times as an X axis and the reaction time length as a Y axis, drawing a reaction time length curve in a point drawing manner, acquiring the difference between two endpoints of an ascending end from the reaction time length curve, marking the difference between the two endpoints of a descending end from the reaction time length curve, marking the difference as a reaction sensitivity value, and marking the result obtained by subtracting the sum value of the reaction sensitivity value from the sum value of the reaction delay value as a control sensitivity value, wherein the control sensitivity trend value is an influence parameter reflecting the control effect of the alarm lamp by the drying equipment;
comparing the control sensitivity trend value with a preset control sensitivity trend value threshold value recorded and stored in the control sensitivity trend value, and analyzing the control sensitivity trend value:
if the control sensitivity trend value is smaller than or equal to a preset control sensitivity trend value threshold, no signal is generated;
if the control sensitivity trend value is larger than a preset control sensitivity trend value threshold, generating a delay signal, sending the delay signal to an early warning display unit, and immediately displaying the delay signal in a word abnormal control mode by the early warning display unit after receiving the delay signal, so that the control condition of the drying equipment on the alarm lamp can be intuitively known, further timely management and maintenance can be carried out, and the control effect of the drying equipment on the alarm lamp can be improved;
in summary, the invention collects the drying data of the drying equipment for processing the printed circuit board and carries out supervision and early warning analysis, judges whether the abnormal risk exists in the welding drying equipment, so as to improve the manufacturing efficiency of the printed circuit, and is beneficial to improving the accuracy of analysis results by carrying out evaluation and analysis from three dimensions of a stable risk value, a unit risk area value and a failure loss value, so as to timely carry out failure early warning, and judges the abnormal risk level condition of the drying equipment by means of data feedback and deep analysis, so as to reasonably and accurately manage the drying equipment, further reasonably and accurately manage and control the drying equipment according to different management levels, improve the management and control effect of the printed circuit board, and simultaneously improve the early warning effect of the drying equipment, and in addition, carries out analysis from two angles of internal product data and external alarm, so as to accurately understand the control effect condition of the drying equipment, namely carrying out processing quality evaluation analysis on the product data, so as to judge the working efficiency condition of the drying equipment, directly reflect the control effect of the drying equipment, so as to timely carry out secondary management, so as to improve the working efficiency and processing quality of the drying equipment, and carry out sensitive control and control of the whole alarm lamp, thereby improving the control and maintenance effect of the drying equipment.
The size of the threshold is set for ease of comparison, and regarding the size of the threshold, the number of cardinalities is set for each set of sample data depending on how many sample data are and the person skilled in the art; as long as the proportional relation between the parameter and the quantized value is not affected.
The above formulas are all formulas obtained by collecting a large amount of data for software simulation and selecting a formula close to the true value, and coefficients in the formulas are set by a person skilled in the art according to practical situations, and the above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is within the technical scope of the present invention, and the technical scheme and the inventive concept according to the present invention are equivalent to or changed and are all covered in the protection scope of the present invention.
Claims (6)
1. The printed circuit board manufacturing control system is characterized by comprising a server, an abnormality supervision unit, a reaction analysis unit, a feedback analysis unit, a warning unit, a self-checking analysis unit and an early warning display unit;
when the server generates a management instruction, the management instruction is sent to an abnormality monitoring unit and a reaction analysis unit, the abnormality monitoring unit immediately collects drying data of the drying equipment for processing the printed circuit board when receiving the management instruction, the drying data comprises running current of the drying equipment, an internal temperature value and a line loss value of a temperature sensor, the drying data is subjected to monitoring early warning analysis and deep comparison analysis, and the obtained abnormality signal is sent to a feedback analysis unit and a warning unit;
the feedback analysis unit immediately carries out deep analysis on the drying data after receiving the abnormal signal, and sends the obtained primary management signal, secondary management signal and tertiary management signal to the early warning display unit, wherein the primary management signal, secondary management signal and tertiary management signal are collectively called as management signal, and the management signal is sent to the self-checking analysis unit;
the self-checking analysis unit immediately collects product data of the drying equipment after management after receiving the management signal, wherein the product data comprises the surface crack length and the surface temperature value of the printed circuit board, carries out processing quality evaluation analysis on the product data, and sends the obtained regulation signal and feedback signal to the early warning display unit through the feedback analysis unit;
and the reaction analysis unit immediately acquires the reaction time of the alarm lamp after receiving the pipe conveying instruction, carries out sensitive control evaluation analysis on the reaction time, and sends the obtained delay signal to the early warning display unit, wherein the reaction time refers to the time between the time when the alarm lamp receives the signal and the time when the alarm lamp is on.
2. The printed circuit board manufacturing control system of claim 1, wherein the supervision and early warning analysis process of the abnormality supervision unit is as follows:
the first step: acquiring the time length from the starting operation time to the ending operation time of the drying equipment for processing the printed circuit board, marking the time length as a time threshold, dividing the time threshold into i subtime periods, wherein i is a natural number larger than zero, acquiring the operation current of the drying equipment in each subtime period, taking the time as an X axis, further acquiring the difference value between the operation currents corresponding to the two connected subtime periods, marking the difference value as a fluctuation value, comparing the fluctuation value with a preset fluctuation value threshold, and marking the fluctuation value which is larger than the preset fluctuation value threshold as 1 when the fluctuation value is larger than the preset fluctuation value threshold, so that the sum value of all 1' is marked as a stable risk value;
and a second step of: acquiring an internal temperature value of drying equipment in each sub-time period, taking time as an X axis, taking internal temperature as Y, establishing a rectangular coordinate system, drawing an internal temperature value curve in a dot drawing mode, drawing a preset internal temperature value threshold curve in the coordinate system, marking an area surrounded by a line segment above the preset internal temperature value threshold curve and the preset internal temperature value threshold curve as a risk area, marking a time length corresponding to the line segment above the preset internal temperature value threshold curve as a risk time length, and marking a ratio between the risk area and the risk time length as a unit risk area value;
and a third step of: the method comprises the steps of obtaining a line loss value of a temperature sensor in drying equipment in a time threshold, comparing the line loss value with a preset line loss value threshold, and marking a part with the line loss value larger than the preset line loss value threshold as a fault loss value if the line loss value is larger than the preset line loss value threshold.
3. The printed circuit board manufacturing control system according to claim 2, wherein the in-depth comparison analysis process of the abnormality supervision unit is as follows:
comparing the stable risk value, the unit risk area value and the fault loss value with a preset stable risk value threshold value, a preset unit risk area value threshold value and a preset fault loss value threshold value which are recorded and stored in the stable risk value, the unit risk area value and the fault loss value through analysis:
if the stable risk value, the unit risk area value and the fault loss value are all smaller than or equal to a preset stable risk value threshold, a preset unit risk area value threshold and a preset fault loss value threshold, no signal is generated;
if the stable risk value, the unit risk area value and the fault loss value are not all smaller than or equal to the preset stable risk value threshold, the preset unit risk area value threshold and the preset fault loss value threshold, an abnormal signal is generated.
4. A printed circuit board manufacturing control system according to claim 3, wherein the feedback analysis unit performs an in-depth analysis of the drying data as follows:
s1: obtaining a stable risk value, a unit risk area value and a fault loss value of drying equipment corresponding to an abnormal signal in a time threshold, and respectively marking the stable risk value, the unit risk area value and the fault loss value as WD, DM and GS;
s12: according to the formulaObtaining a risk fault evaluation coefficient, wherein a1, a2 and a3 are preset scale factor coefficients of a stable risk value, a unit risk area value and a fault loss value respectively, a1, a2 and a3 are positive numbers larger than zero, a4 is a preset correction coefficient, the value is 2.342, F is a risk fault evaluation coefficient, in addition, a standard risk fault evaluation coefficient of normal drying equipment is obtained, a part of the risk fault evaluation coefficient F exceeding the standard risk fault evaluation coefficient is marked as a risk evaluation value, and the risk evaluation value is compared with a preset risk evaluation value interval recorded and stored in the risk evaluation value:
if the risk assessment value is larger than the maximum value in the preset risk assessment value interval, generating a first-level management signal;
if the risk evaluation value is within the preset risk evaluation value interval value, generating a secondary management signal;
and if the risk evaluation value is smaller than the minimum value in the preset risk evaluation value interval, generating a three-level management signal.
5. The printed circuit board manufacturing control system according to claim 1, wherein the process quality evaluation analysis process of the self-test analysis unit is as follows:
collecting the time length from the starting working time to the ending working time after the management of the drying equipment, marking the time length as feedback time length, marking the printed circuit board in the drying equipment as k, wherein k is a natural number larger than zero, acquiring the surface crack length and the surface temperature value of the printed circuit board in the feedback time length, respectively marking the surface crack length and the surface temperature value as BHk and BWk, comparing the surface crack length BHk and the surface temperature value BWk with a preset surface crack length threshold value and a preset temperature value threshold value, analyzing the surface crack length BHk is larger than the preset surface crack length threshold value or the surface temperature value BWk is larger than the preset temperature value threshold value, marking the corresponding printed circuit board as a risk board, marking the corresponding printed circuit board as a normal board if the surface crack length BHk is smaller than or equal to a preset surface crack length threshold value and the surface temperature value BWk is smaller than or equal to a preset temperature value threshold value, respectively obtaining the total number of the risk board and the normal board, respectively marking the total number of the risk board and the normal board as an abnormal value YC and a normal value ZC, further marking the ratio of the normal value ZC and the sum of the abnormal value YC and the normal value ZC as a machining evaluation coefficient, and comparing the machining evaluation coefficient with a preset machining evaluation coefficient threshold value recorded and stored in the machining evaluation coefficient.
If the ratio of the machining evaluation coefficient to the preset machining evaluation coefficient threshold is less than or equal to one, generating a regulating signal;
and if the ratio of the machining evaluation coefficient to the preset machining evaluation coefficient threshold is greater than one, generating a feedback signal.
6. A printed circuit board manufacturing control system according to claim 1, wherein the sensitivity control evaluation analysis process of the reaction analysis unit is as follows:
SS1: acquiring the time length from the beginning of the use time of the alarm lamp to the current time, marking the time length as the use time length, acquiring the working times of the alarm lamp in the use time length, marking the working times as g, wherein g is a natural number larger than zero, acquiring the reaction time length of each time of the alarm lamp in the use time length, taking the working times as an X axis, setting up a rectangular coordinate system with the reaction time length as a Y axis, drawing a reaction time length curve in a dot drawing manner, acquiring the difference value between two endpoints of an ascending end from the reaction time length curve, marking the difference value as a reaction delay value, simultaneously acquiring the difference value between two endpoints of a descending section from the reaction time length curve, marking the difference value as a reaction sensitivity value, and marking the result obtained by subtracting the sum value of the reaction sensitivity values from the sum value of the reaction delay values as a control sensitivity trend value;
SS12: comparing the control sensitivity trend value with a preset control sensitivity trend value threshold value recorded and stored in the control sensitivity trend value, and analyzing the control sensitivity trend value:
if the control sensitivity trend value is smaller than or equal to a preset control sensitivity trend value threshold, no signal is generated;
and if the control sensitivity trend value is larger than the preset control sensitivity trend value threshold, generating a delay signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310864368.1A CN116916550B (en) | 2023-07-14 | Printed circuit board manufacturing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310864368.1A CN116916550B (en) | 2023-07-14 | Printed circuit board manufacturing control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116916550A true CN116916550A (en) | 2023-10-20 |
| CN116916550B CN116916550B (en) | 2024-04-26 |
Family
ID=
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564183A (en) * | 1992-09-30 | 1996-10-15 | Matsushita Electric Industrial Co., Ltd. | Producing system of printed circuit board and method therefor |
| US20090095176A1 (en) * | 2007-10-11 | 2009-04-16 | Printar Ltd. | Method and apparatus for PCB finishing processes |
| KR20140034335A (en) * | 2012-08-17 | 2014-03-20 | (주)에이시에스 | System for reduction of energy and fraction defective in the production of pcb based ubiquitous sensor network |
| CN211451739U (en) * | 2019-12-18 | 2020-09-08 | 南通市通州区同博机械制造有限公司 | Drying device of copper-clad plate production line |
| CN114137916A (en) * | 2021-11-19 | 2022-03-04 | 吉安县鑫盛电子有限公司 | Supervision and control system for circuit board production based on data analysis |
| CN116156775A (en) * | 2023-04-19 | 2023-05-23 | 圆周率半导体(南通)有限公司 | Method for improving etching uniformity based on big data analysis |
| CN116373477A (en) * | 2023-06-06 | 2023-07-04 | 山东力乐新材料研究院有限公司 | Fault prediction method and system based on printing equipment operation parameter analysis |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564183A (en) * | 1992-09-30 | 1996-10-15 | Matsushita Electric Industrial Co., Ltd. | Producing system of printed circuit board and method therefor |
| US20090095176A1 (en) * | 2007-10-11 | 2009-04-16 | Printar Ltd. | Method and apparatus for PCB finishing processes |
| KR20140034335A (en) * | 2012-08-17 | 2014-03-20 | (주)에이시에스 | System for reduction of energy and fraction defective in the production of pcb based ubiquitous sensor network |
| CN211451739U (en) * | 2019-12-18 | 2020-09-08 | 南通市通州区同博机械制造有限公司 | Drying device of copper-clad plate production line |
| CN114137916A (en) * | 2021-11-19 | 2022-03-04 | 吉安县鑫盛电子有限公司 | Supervision and control system for circuit board production based on data analysis |
| CN116156775A (en) * | 2023-04-19 | 2023-05-23 | 圆周率半导体(南通)有限公司 | Method for improving etching uniformity based on big data analysis |
| CN116373477A (en) * | 2023-06-06 | 2023-07-04 | 山东力乐新材料研究院有限公司 | Fault prediction method and system based on printing equipment operation parameter analysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117060594B (en) | Power distribution operation monitoring system based on Internet of things | |
| CN114430199A (en) | Cubical switchboard operation supervisory systems based on big data | |
| CN116483010A (en) | Power control cabinet safe operation supervision early warning system | |
| CN114819415A (en) | Power equipment fault prediction system based on data analysis | |
| CN109284933B (en) | Electronic transformer state evaluation system and method based on mathematical statistics | |
| CN115102290A (en) | Real-time safety early warning system of smart power grids | |
| CN116879662A (en) | Transformer fault detection method based on data analysis | |
| CN113238142A (en) | Method and system for integrated circuit | |
| CN115268417B (en) | Self-adaptive ECU fault diagnosis control method | |
| CN117092578B (en) | Wire harness conduction intelligent detection system based on data acquisition and processing | |
| CN117032004A (en) | Industrial production automatic control platform based on Internet of things | |
| CN116125242A (en) | Object detection method and system | |
| CN114977483A (en) | Fault diagnosis system for intelligent power grid regulation and control equipment | |
| CN116893643A (en) | Intelligent robot driving track safety control system based on data analysis | |
| CN109613372B (en) | Power grid fault diagnosis method based on multi-element power grid database | |
| CN116916550B (en) | Printed circuit board manufacturing control system | |
| CN116916550A (en) | Printed circuit board manufacturing control system | |
| CN110889646B (en) | Method for checking correctness of operating parameters of generator set adapting to working condition change | |
| CN117406026A (en) | Power distribution network fault detection method suitable for distributed power supply | |
| CN117075555A (en) | System-in-package equipment operation supervision system based on Internet of things | |
| CN109990803A (en) | The method, apparatus of method, apparatus and the sensor processing of detection system exception | |
| CN115452031A (en) | Detecting system is used in rotary encoder switch production | |
| CN114137388A (en) | Circuit board signal tracing detection system | |
| CN105930870A (en) | Engineering safety monitoring data outlier detection method | |
| CN116302763B (en) | Touch detection method and system for Micro LED display screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240401 Address after: 337000 Ganxiang Industrial Park, Jinshan Town, Shangli County, Pingxiang City, Jiangxi Province Applicant after: Pingxiang Lianjincheng Technology Co.,Ltd. Country or region after: China Address before: No. 68 Shunfeng Road, High tech Zone, Jinan City, Shandong Province, 250000 Applicant before: Jinan Feitairong Printing Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant |