CN111198497A - Flexible electronic circuit online intelligent printing sintering control system and control method - Google Patents
Flexible electronic circuit online intelligent printing sintering control system and control method Download PDFInfo
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- 238000005245 sintering Methods 0.000 title claims abstract description 224
- 238000007639 printing Methods 0.000 title claims abstract description 141
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- 238000009766 low-temperature sintering Methods 0.000 claims description 34
- 238000000149 argon plasma sintering Methods 0.000 claims description 30
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Abstract
The invention provides a flexible electronic circuit on-line intelligent printing sintering control system on one hand and a flexible electronic circuit on-line intelligent printing sintering control method on the other hand; according to the invention, the data acquisition system, the sensor system and the machine vision recognition system are used for acquiring relevant process parameters, state information, environment information and working condition information of the printing device and the sintering device, so that the integration of the flexible electronic circuit printing device and the sintering device is realized, meanwhile, the artificial intelligence technology is combined, the sintering can be carried out according to the relevant printed parameters, the optimization of self-sintering process parameters and the correction of electronic circuit tracks are carried out, the integration degree of printing and sintering is improved, meanwhile, the equipment is higher in integration degree, more intelligent and higher in automation degree, the printing of the conductive liquid on a medium is completed, the sintering is also completed simultaneously, the printing and sintering speed is higher, the sintering quality is better, the sintering efficiency is higher, the automation control is more convenient and the sintering is more simplified.
Description
Technical Field
The invention relates to the technical field of printing and sintering equipment in the flexible electronic industry, in particular to a flexible electronic circuit online intelligent printing and sintering control system and a control method.
Background
At present, the technical research on flexible electronic circuit printing mainly focuses on various printed electronic fields, and mainly aims at carrying out precision and economic research on electronic circuit printing. The invention realizes the integrated electronic circuit printing and sintering and the on-line real-time sintering control research on the basis of the original printing and sintering, can realize the synchronization of the electronic circuit printing and sintering, and simultaneously improves the efficiency and the quality of the printing and sintering.
Disclosure of Invention
Aiming at the defects existing in the problems, the invention provides the online intelligent printing and sintering control system and the online intelligent printing and sintering control method for the flexible electronic circuit, so that the synchronization of the printing and sintering of the electronic circuit is realized, and meanwhile, the efficiency and the quality of the printing and sintering are improved.
In order to achieve the above object, one aspect of the present invention provides an online intelligent printing and sintering control system for flexible electronic circuits, including:
the EHD electro-hydrodynamic printing device is used for realizing printing of electronic circuits and comprises a power supply, a mobile platform, an ink jet system, a vision system, a position measuring instrument, a flow sensor, a speed sensor and a temperature sensor;
the laser online low-temperature sintering device is used for realizing sintering treatment after electronic circuit printing and comprises a power supply, a mobile platform, a sintering system, a vision system, a height measuring instrument, a track detection system, a speed sensor and a temperature sensor;
the data acquisition unit 1 is used for acquiring relevant working parameters, circuit pattern parameters and working state parameters of the EHD electrofluid printing device during normal printing;
the data acquisition unit 2 is used for acquiring relevant working parameters, circuit pattern sintering state parameters, sintering temperature, sintering speed and working state parameters of the laser online low-temperature sintering device during normal sintering, and meanwhile, receiving relevant parameter information transmitted by the data acquisition unit 1;
the data analysis processor is used for analyzing and processing related data and comprises an electronic circuit feature recognition and extraction module, a data imaging module, a feature deep learning module, a self-decision module, a self-diagnosis module and a self-execution module; the data graph module receives the circuit printing execution information of the data collector 1 according to the data collector 2, and the circuit printing execution information is extracted by the electronic circuit characteristic identification extraction module and then is used as a graph information basis for sintering, characteristic deep learning, autonomous decision making, autonomous diagnosis and self execution of the laser online low-temperature sintering device; the characteristic deep learning module is used for self-storing and self-learning of the laser online low-temperature sintering device according to the information of the data graphic module, and simultaneously providing a basis for optimization of sintering parameters according to the difference of printed circuits of the EHD electro-hydrodynamic device; the self-decision module is used for judging the optimization degree of the sintering parameters according to the information provided by the feature deep learning module and making a decision; the self-diagnosis module is used for detecting the system of the laser online low-temperature sintering device in real time according to the sintering quality of the system, feeding back the sintering quality, providing influencing factors influencing the sintering quality according to quality feedback information and providing a basis for system correction;
the system comprises a database management system and a data/characteristic output module, wherein the database management system is used for managing, storing and outputting instruction signals of information or data characteristics acquired by the system/device through collection, transmission, identification, extraction and the like, and comprises a data input module, a line characteristic input module, a data characteristic judgment module and a data/characteristic output module.
As a further improvement of the present invention, the data collector 1 includes a motion data collecting module, a voltage collecting module, a current collecting module, an electronic circuit collecting module, a jet flow collecting module, a speed collecting module, a temperature collecting module and a humidity collecting module, and the data collector 2 includes a motion data collecting module, a sintering power collecting module, a jet height collecting module, a laser sintering point height collecting module, a speed collecting module, a temperature collecting module, a humidity collecting module and a sintering state collecting module.
As a further improvement of the invention, the self-execution module mainly comprises two parts of intelligent sintering and sintering stopping, when the sintering quality and the sintering form are diagnosed to be qualified by the self-diagnosis module, the sintering system and the printing system work synchronously, and when the sintering quality and the sintering form are diagnosed to be unqualified by the self-diagnosis module, the sintering device automatically stops sintering and gives an alarm.
In another aspect of the present invention, a flexible electronic circuit online intelligent printing sintering control method is provided, which includes the following steps;
(1) starting printing and sintering equipment, entering a line control program to be printed, continuously sending a data information acquisition request instruction to a controller by an intelligent control system, and requesting to start data information acquisition;
(2) after receiving a data information acquisition request, the controller sends a data acquisition instruction to the EHD electro-hydrodynamic printing device and the laser online low-temperature sintering device, and the data acquisition devices 1 and 2 start to acquire data information of the EHD electro-hydrodynamic printing device and the laser online low-temperature sintering device and store the acquired data information into corresponding storage units of the controller;
(3) transmitting the stored data information to an intelligent control system by the controller;
(4) selecting a proper printing input, output and control module according to the current electronic circuit printing mode, starting to collect corresponding data by the data collector 1, and transmitting the collected printing data to the data collector 2;
(5) according to the current printing mode and the data information received by the data acquisition unit 2, after the laser on-line low-temperature sintering device delays for 2s, the laser sintering device is started to realize asynchronous time with 2s difference between sintering and printing, the data acquisition unit 2 not only continuously receives the data information transmitted by the data acquisition unit 1, but also collects the data information in the sintering process from time to time, and continuously compares the data information with the sintering quality of an intelligent controller and the sintered circuit pattern from time to time, monitors the working states of the printing equipment and the sintering equipment and diagnoses faults, and simultaneously, the data acquisition unit 2 monitors the distance from a laser sintering light spot emission point to a sintering circuit interface and the power, the bandwidth, the sintering temperature and the sintering quality during sintering according to a monitoring system from time to time;
(6) according to the data information collected by the current data collector 2, the relevant parameters aiming at the printing and sintering modes in the data management system are called and compared with the data information collected by the data collector 2, the optimal sintering process parameters under the printing module are established through a self-learning module, a self-diagnosis module and a self-decision module, and the relation between the optimal printing speed and the sintering speed is determined;
(7) transmitting the obtained data information of the relation between the optimal sintering process parameters and the optimal printing speed and sintering speed to a self-learning module for self deep learning;
(8) the data acquisition unit 2 acquires information such as sintering temperature, speed, sintering quality and the like and transmits the information to the self-diagnosis module for judgment, so that the sintering efficiency and quality are ensured;
(9) according to the data information acquired by the data acquisition device 2, the self-decision module can make a decision according to the conformity degree of the data information, and is implemented by the self-execution module, and the self-decision module can make the corrections of the sintering line track, the sintering termination, the sintering speed change, the sintering temperature change, the height change of the laser emission point and the sintering section.
Compared with the prior art, the invention has the beneficial effects that: compared with the prior art, the invention realizes the characteristics of self-perception, self-learning, self-diagnosis and self-decision of the flexible electronic circuit printing device and the sintering device by acquiring the relevant process parameters, state information, environmental information and working condition information of the printing device and the sintering device through the data acquisition system, the sensor system and the machine vision recognition system, simultaneously, the artificial intelligence technology is adopted, the sintering can be used for optimizing the self-sintering process parameters and correcting the electronic circuit track according to the relevant printed parameters, the integration degree of printing and sintering is improved, meanwhile, the equipment is more intelligent and has higher automation degree, the conductive liquid is printed on the medium, the sintering is also finished simultaneously, the printing and sintering speed is higher, the sintering quality is better, the sintering efficiency is higher, the automation control is more convenient and is simpler.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a flow chart of the control system of the present invention;
FIG. 3 is a highly schematic sintered drawing of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, an online intelligent printing and sintering control system and a control method for a flexible electronic circuit according to an embodiment of the present invention are provided.
In a first aspect of the present invention, there is provided an online intelligent printing and sintering control system for a flexible electronic circuit, comprising: the EHD electro-hydrodynamic printing device is used for realizing printing of electronic circuits and comprises a power supply, a mobile platform, an ink jet system, a vision system, a position measuring instrument, a flow sensor, a speed sensor and a temperature sensor; the laser online low-temperature sintering device is used for realizing sintering treatment after electronic circuit printing and comprises a power supply, a mobile platform, a sintering system, a vision system, a height measuring instrument, a track detection system, a speed sensor and a temperature sensor; the data acquisition unit 1 is used for acquiring relevant working parameters, circuit pattern parameters and working state parameters of the EHD electrofluid printing device during normal printing; the data acquisition unit 2 is used for acquiring relevant working parameters, circuit pattern sintering state parameters, sintering temperature, sintering speed and working state parameters of the laser online low-temperature sintering device during normal sintering, and meanwhile, receiving relevant parameter information transmitted by the data acquisition unit 1; the data analysis processor is used for analyzing and processing related data and comprises an electronic circuit feature recognition and extraction module, a data imaging module, a feature deep learning module, a self-decision module, a self-diagnosis module and a self-execution module; the data graph module receives the circuit printing execution information of the data collector 1 according to the data collector 2, and the circuit printing execution information is extracted by the electronic circuit characteristic identification extraction module and then is used as a graph information basis for sintering, characteristic deep learning, autonomous decision making, autonomous diagnosis and self execution of the laser online low-temperature sintering device; the characteristic deep learning module is used for self-storing and self-learning of the laser online low-temperature sintering device according to the information of the data graphic module, and simultaneously providing a basis for optimization of sintering parameters according to the difference of printed circuits of the EHD electro-hydrodynamic device; the self-decision module is used for judging the optimization degree of the sintering parameters according to the information provided by the characteristic deep learning module and making a decision; the self-diagnosis module is used for detecting the system of the laser online low-temperature sintering device from time to time according to the sintering quality of the system, feeding back the sintering quality, providing influencing factors influencing the sintering quality according to quality feedback information, and providing a basis for system correction; the system comprises a database management system, a data processing system and a data processing system, wherein the database management system is used for managing, storing and outputting instruction signals of information or data characteristics acquired by the system/device through acquisition, transmission, identification, extraction and the like, and comprises a data input module, a line characteristic input module, a data characteristic judgment module and a data/characteristic output module; the data collector 1 comprises a motion data collecting module, a voltage collecting module, a current collecting module, an electronic circuit collecting module, an injection flow collecting module, a speed collecting module, a temperature collecting module and a humidity collecting module, and the data collector 2 comprises a dynamic data collecting module, a sintering power collecting module, an injection height collecting module, a laser sintering point height collecting module, a speed collecting module, a temperature collecting module, a humidity collecting module and a sintering state collecting module; the self-diagnosis module diagnoses the sintering quality and the sintering form as qualified, the sintering system and the printing system work synchronously, and the self-diagnosis module diagnoses the sintering quality and the sintering form as unqualified, the sintering device automatically stops sintering and gives an alarm;
in a second aspect of the present invention, a method for controlling the online intelligent printing and sintering of flexible electronic circuits is provided, which includes the following steps;
(1) starting printing and sintering equipment, entering a line control program to be printed, continuously sending a data information acquisition request instruction to a controller by an intelligent control system, and requesting to start data information acquisition;
(2) after receiving a data information acquisition request, the controller sends a data acquisition instruction to the EHD electro-hydrodynamic printing device and the laser online low-temperature sintering device, and the data acquisition devices 1 and 2 start to acquire data information of the EHD electro-hydrodynamic printing device and the laser online low-temperature sintering device and store the acquired data information into corresponding storage units of the controller;
(3) transmitting the stored data information to an intelligent control system by the controller;
(4) selecting a proper printing input, output and control module according to the current electronic circuit printing mode, starting to collect corresponding data by the data collector 1, and transmitting the collected printing data to the data collector 2;
(5) according to the current printing mode and the data information received by the data acquisition unit 2, after the laser on-line low-temperature sintering device delays for 2s, the laser sintering device is started to realize asynchronous time with 2s difference between sintering and printing, the data acquisition unit 2 not only continuously receives the data information transmitted by the data acquisition unit 1, but also collects the data information in the sintering process from time to time, and continuously compares the data information with the sintering quality of an intelligent controller and the sintered circuit pattern from time to time, monitors the working states of the printing equipment and the sintering equipment and diagnoses faults, and simultaneously, the data acquisition unit 2 monitors the distance from a laser sintering light spot emission point to a sintering circuit interface and the power, the bandwidth, the sintering temperature and the sintering quality during sintering according to a monitoring system from time to time;
(6) according to the data information collected by the current data collector 2, the relevant parameters aiming at the printing and sintering modes in the data management system are called and compared with the data information collected by the data collector 2, the optimal sintering process parameters under the printing module are established through a self-learning module, a self-diagnosis module and a self-decision module, and the relation between the optimal printing speed and the sintering speed is determined;
(7) transmitting the obtained data information of the relation between the optimal sintering process parameters and the optimal printing speed and sintering speed to a self-learning module for self deep learning;
(8) the data acquisition unit 2 acquires information such as sintering temperature, speed, sintering quality and the like and transmits the information to the self-diagnosis module for judgment, so that the sintering efficiency and quality are ensured;
(9) according to the data information acquired by the data acquisition device 2, the self-decision module can make a decision according to the conformity degree of the data information, and is implemented by the self-execution module, and the self-decision module can make the corrections of the sintering line track, the sintering termination, the sintering speed change, the sintering temperature change, the height change of the laser emission point and the sintering section.
The invention collects the relevant process parameters, state information, environment information and working condition information of the printing device and the sintering device through the data collection system, the sensor system and the machine vision identification system, realizes the characteristics of self-perception, self-learning, self-diagnosis and self-decision of the flexible electronic circuit printing device and the sintering device, simultaneously adopts the artificial intelligence technology, ensures that the sintering can carry out the optimization of self-sintering process parameters and the correction of electronic circuit tracks according to the relevant printed parameters, improves the integration degree of printing and sintering, simultaneously ensures that the equipment is more intelligent and has higher automation degree, the conductive liquid is printed on a medium and is finished simultaneously, the printing and sintering speed is higher, the sintering quality is better, the sintering efficiency is higher, the automation control is more convenient and is more simplified.
In particular use, the invention will be described with reference to the accompanying drawings for the convenience of understanding;
a flexible electronic circuit on-line intelligent printing sintering control system comprises a structure composition of spray printing and low-temperature on-line sintering and a control method:
(1) normally spraying and printing an electronic circuit by using an EHD (electro hydrodynamic) spray printing device;
(2) the laser online low-temperature sintering device is used for sintering and solidifying the printed electronic circuit according to the thickness D of the wire harness of the sprayed electronic circuit during sintering(X)Automatically adjusting the height H of the laser sintering probe(Z)；
(3) The data collector 1 is mainly used for collecting related speed parameters v of the EHD electrofluid printing device during normal printing1(constant value), diameter parameter d of jet printing line bundle(x)And an operating state parameter p1(p is stable in a stable state), and meanwhile, the acquired related parameter information is transmitted to the data acquisition unit 2;
D(x+i)＝λd(x+i-1)+(1-x)dq(x)； (a)
data collector 1 transmits data to data collector 2 with a transfer function:
in the formula (a), D(x+i)The diameter of the output electronic wire harness is the ith position; lambda [ alpha ](d)Stability of jet-printed wiring harness at x position acquired by data acquisition unit, d(q)(x) When the EHD electrohydrodynamic jet printing nozzle is at the position q, the beam value of the EHD jet printing is more than 0 and less than 1, x is 1, 2, 3 and 4, and N is a positive integer which is more than or equal to 1;
in the formula (b), when the EHD works normally, the jet printing speed v is 2mm/s, and when the speed changes during the EHD jet printing, an Error is reported in an Error mode;
in the formula (c), when the EHD works normally, the working state output is low level 0, and when a problem occurs in the EHD spray printing state, for example, Error reporting occurs in the speed, high level 1 is output;
in the formula (D), λ is the correction coefficient of the transfer function, 0 < λ < 1, D(0)＝20μm，D(0)The minimum wire harness diameter which can be sprayed and printed by the spray head;
(4) data acquisition unit 2 for collecting laser on-line low-temperature sinteringRelevant sintering speed parameter v of device in normal sintering2＝v1(constant value), sintering temperature T200 deg.C, working state parameter p2And laser sintering probe height H(z)Meanwhile, receiving the related parameter information transmitted by the data acquisition unit 1;
H(z+i)＝λz(z+i)+(1+z)Hq(z)； (e)
in the formula (e), H(z+i)When the position is the ith position, controlling the height of the laser sintering probe in the Z direction; lambda [ alpha ](z)The correction coefficient in the height direction of the laser sintering probe at the x position, H(q)(Z) is the height value of the laser sintering probe when the laser sintering device is at the position q, wherein lambda is more than 0 and less than 1, Z is 1, 2, 3 and 4, and N is a positive integer which is more than or equal to 1; according to the control process of the spray printing and sintering device, the height H of the laser sintering probe is accurately controlled within the range of 5-8mm, and the sintering quality is improved; the sintering height is shown in figure 3;
in the formulas (f), (g) and (h), the sintering speed is consistent with the jet printing speed in the sintering process, the equipment normally works when the sintering state is normal and the sintering temperature is normal, otherwise, the equipment stops sintering;
(5) the controller is mainly connected with the EHD electrohydrodynamic printing device, the laser online low-temperature sintering device, the data collector 1 and the data collector 2, controls the EHD electrohydrodynamic printing device, corrects parameters, returns corrected values to the EHD electrohydrodynamic printing device and the laser sintering control device, and controls the legend function as follows:
in the formula (i), f (x, z, t) is a control transfer function of parameters in the EHD spray printing process, and f (x)0,z0T) is a parameter state under an EHD spray printing initial state, α is a correction coefficient, and 0 is more than α and less than 1;
in the formula (j), g (x, z, t) is a control transfer function of parameters in the laser low-temperature sintering process, and g (x)0,z0T) is the parameter state under the initial state of laser sintering, α is a correction coefficient, 0 is more than α and less than 1;
and (5) returning to the EHD electro-hydrodynamic jet printing device and the laser sintering control device according to the calculation result of the formula (k), and correcting data parameters until the technical parameters of jet printing and sintering are met.
(6) The data analysis processor comprises an electronic circuit feature identification and extraction module, a data imaging module, a feature deep learning module, a self-decision module, a self-diagnosis module and a self-execution module; the data graph module is used as a graph information basis for sintering, characteristic deep learning, autonomous decision making, autonomous diagnosis and self-execution of the laser online low-temperature sintering device after being extracted by the electronic circuit characteristic identification and extraction module according to the circuit printing execution information transmitted to the data collector 2 by the data collector 1; the characteristic deep learning module is used for self-storing and self-learning of the laser online low-temperature sintering device according to the information of the data graphic module, and simultaneously providing a basis for optimization of sintering parameters according to the difference of printed circuits of the EHD electro-hydrodynamic device; the self-decision module is mainly used for judging the optimization degree of the sintering parameters according to the information provided by the characteristic deep learning module and making a decision; the self-diagnosis module is used for detecting the system of the laser online low-temperature sintering device from time to time according to the sintering quality of the system, feeding back the sintering quality, providing influencing factors influencing the sintering quality according to quality feedback information, and providing a basis for system correction; the self-diagnosis module diagnoses the sintering quality and the sintering form as qualified, the sintering system and the printing system work synchronously, if the self-diagnosis module diagnoses the sintering quality and the sintering form as unqualified, the sintering device automatically stops sintering and gives an alarm;
the data collector 1, 2 comprises a motion data collecting module, a voltage collecting module, a current collecting module, an electronic circuit collecting module, an injection height collecting module, a laser sintering point height collecting module, an injection flow collecting module, a speed collecting module, a temperature collecting module and a humidity collecting module
The database management system is a main component of an intelligent control system, mainly manages, stores and outputs instruction signals and the like of information or data characteristics acquired by the system/device through collection, transmission, identification, extraction and the like, and comprises a data input module, a line characteristic input module, a data characteristic judging module and a data/characteristic output module.
The self-learning method mainly adopts one of the methods which can realize machine learning at present, such as a decision tree algorithm, an ant colony algorithm, a topological algorithm, an extension method, a visual identification method, a tracing learning method, a neural network method and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides an online intelligent printing sintering control system of flexible electronic circuit which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the EHD electro-hydrodynamic printing device is used for realizing printing of electronic circuits and comprises a power supply, a mobile platform, an ink jet system, a vision system, a position measuring instrument, a flow sensor, a speed sensor and a temperature sensor;
the laser online low-temperature sintering device is used for realizing sintering treatment after electronic circuit printing and comprises a power supply, a mobile platform, a sintering system, a vision system, a height measuring instrument, a track detection system, a speed sensor and a temperature sensor;
the data acquisition unit 1 is used for acquiring relevant working parameters, circuit pattern parameters and working state parameters of the EHD electrofluid printing device during normal printing;
the data acquisition unit 2 is used for acquiring relevant working parameters, circuit pattern sintering state parameters, sintering temperature, sintering speed and working state parameters of the laser online low-temperature sintering device during normal sintering, and meanwhile, receiving relevant parameter information transmitted by the data acquisition unit 1;
the data analysis processor is used for analyzing and processing related data and comprises an electronic circuit feature recognition and extraction module, a data imaging module, a feature deep learning module, a self-decision module, a self-diagnosis module and a self-execution module; the data graph module receives the circuit printing execution information of the data collector 1 according to the data collector 2, and the circuit printing execution information is extracted by the electronic circuit characteristic identification extraction module and then is used as a graph information basis for sintering, characteristic deep learning, autonomous decision making, autonomous diagnosis and self execution of the laser online low-temperature sintering device; the characteristic deep learning module is used for self-storing and self-learning of the laser online low-temperature sintering device according to the information of the data graphic module, and simultaneously providing a basis for optimization of sintering parameters according to the difference of printed circuits of the EHD electro-hydrodynamic device; the self-decision module is used for judging the optimization degree of the sintering parameters according to the information provided by the feature deep learning module and making a decision; the self-diagnosis module is used for detecting the system of the laser online low-temperature sintering device in real time according to the sintering quality of the system, feeding back the sintering quality, providing influencing factors influencing the sintering quality according to quality feedback information and providing a basis for system correction;
the system comprises a database management system and a data/characteristic output module, wherein the database management system is used for managing, storing and outputting instruction signals of information or data characteristics acquired, transmitted, identified and extracted by the system/device, and comprises a data input module, a line characteristic input module, a data characteristic judgment module and the data/characteristic output module.
2. The system of claim 1, wherein the flexible electronic circuit is configured to perform the online intelligent printing and sintering control of the flexible electronic circuit, and the system further comprises: the data collector 1 comprises a motion data collecting module, a voltage collecting module, a current collecting module, an electronic circuit collecting module, an injection flow collecting module, a speed collecting module, a temperature collecting module and a humidity collecting module, and the data collector 2 comprises a dynamic data collecting module, a sintering power collecting module, an injection height collecting module, a laser sintering point height collecting module, a speed collecting module, a temperature collecting module, a humidity collecting module and a sintering state collecting module.
3. The system of claim 1, wherein the flexible electronic circuit is configured to perform the online intelligent printing and sintering control of the flexible electronic circuit, and the system further comprises: the self-diagnosis module diagnoses the sintering quality and the sintering form as qualified, the sintering system and the printing system work synchronously, and the self-diagnosis module diagnoses the sintering quality and the sintering form as unqualified, and the sintering device automatically stops sintering and gives an alarm.
4. A control method for online intelligent printing and sintering of a flexible electronic circuit is characterized by comprising the following steps: comprises the following steps;
(1) starting printing and sintering equipment, entering a line control program to be printed, continuously sending a data information acquisition request instruction to a controller by an intelligent control system, and requesting to start data information acquisition;
(2) after receiving a data information acquisition request, the controller sends a data acquisition instruction to the EHD electro-hydrodynamic printing device and the laser online low-temperature sintering device, and the data acquisition devices 1 and 2 start to acquire data information of the EHD electro-hydrodynamic printing device and the laser online low-temperature sintering device and store the acquired data information into corresponding storage units of the controller;
the on-line low-temperature sintering device is used for sintering and solidifying the printed electronic circuit, and the wire harness of the printed electronic circuit is sprayed according to the thickness D of the wire harness during sintering(X)Automatically adjusting the height H of the laser sintering probe(Z)；
The data collector 1 collects the related speed parameter v of the EHD electrofluid printing device during normal printing1(constant value), diameter parameter d of jet printing line bundle(x)And an operating state parameter p1(p is stable in a stable state), and meanwhile, the acquired related parameter information is transmitted to the data acquisition unit 2;
D(x+i)＝λd(x+i-1)+(1-x)dq(x)； (a)
data collector 1 transmits data to data collector 2 with a transfer function:
in the formula (a), D(x+i)The diameter of the output electronic wire harness is the ith position; lambda [ alpha ](d)Stability of jet-printed wiring harness at x position acquired by data acquisition unit, d(q)(x) When the EHD electrohydrodynamic jet printing nozzle is at the position q, the beam value of the EHD jet printing is more than 0 and less than 1, x is 1, 2, 3 and 4, and N is a positive integer which is more than or equal to 1;
in the formula (b), when the EHD works normally, the jet printing speed v is 2mm/s, and when the speed changes during the EHD jet printing, an Error is reported in an Error mode;
in the formula (c), when the EHD works normally, the working state output is low level 0, and when a problem occurs in the EHD spray printing state, for example, Error reporting occurs in the speed, high level 1 is output;
in the formula (D), λ is the correction coefficient of the transfer function, 0 < λ < 1, D(0)＝20μm，D(0)The minimum wire harness diameter which can be sprayed and printed by the spray head;
the data acquisition unit 2 is used for acquiring related sintering speed parameters v of the laser on-line low-temperature sintering device during normal sintering2＝v1(constant value), sintering temperature T200 deg.C, working state parameter p2And laser sintering probe height H(z)Meanwhile, receiving the related parameter information transmitted by the data acquisition unit 1;
H(z+i)＝λz(z+i)+(1+z)Hq(z)；(e)
in the formula (e), H(z+i)When the position is the ith position, controlling the height of the laser sintering probe in the Z direction; lambda [ alpha ](z)The correction coefficient in the height direction of the laser sintering probe at the x position, H(q)(Z) is the height value of the laser sintering probe when the laser sintering device is at the position q, wherein lambda is more than 0 and less than 1, Z is 1, 2, 3 and 4, and N is a positive integer which is more than or equal to 1; according to the control process of the spray printing and sintering device, the height H of the laser sintering probe is accurately controlled within the range of 5-8mm, and the sintering quality is improved;
in the formulas (f), (g) and (h), the sintering speed is consistent with the jet printing speed in the sintering process, the equipment normally works when the sintering state is normal and the sintering temperature is normal, otherwise, the equipment stops sintering;
the controller is connected with the EHD electrohydrodynamic printing device, the laser online low-temperature sintering device, the data collector 1 and the data collector 2, controls the EHD electrohydrodynamic printing device, corrects parameters, returns the corrected values to the EHD electrohydrodynamic printing device and the laser sintering control device, and controls a legendary function as follows:
in the formula (i), f (x, z, t) is a control transfer function of parameters in the EHD spray printing process, and f (x)0,z0T) is a parameter state under an EHD spray printing initial state, α is a correction coefficient, and 0 is more than α and less than 1;
in the formula (j), g (x, z, t) is a control transfer function of parameters in the laser low-temperature sintering process, and g (x)0,z0T) is the parameter state under the initial state of laser sintering, α is a correction coefficient, 0 is more than α and less than 1;
returning to the EHD electrohydrodynamic spray printing device and the laser sintering control device according to the calculation result of the formula (k) to correct data parameters until the technical parameters meeting the requirements of spray printing and sintering are met;
(3) transmitting the stored data information to an intelligent control system by the controller;
(4) selecting a proper printing input, output and control module according to the current electronic circuit printing mode, starting to collect corresponding data by the data collector 1, and transmitting the collected printing data to the data collector 2;
(5) according to the current printing mode and the data information received by the data acquisition unit 2, after the laser on-line low-temperature sintering device delays for 2s, the laser sintering device is started to realize asynchronous time with 2s difference between sintering and printing, the data acquisition unit 2 not only continuously receives the data information transmitted by the data acquisition unit 1, but also collects the data information in the sintering process from time to time, and continuously compares the data information with the sintering quality of an intelligent controller and the sintered circuit pattern from time to time, monitors the working states of the printing equipment and the sintering equipment and diagnoses faults, and simultaneously, the data acquisition unit 2 monitors the distance from a laser sintering light spot emission point to a sintering circuit interface and the power, the bandwidth, the sintering temperature and the sintering quality during sintering according to a monitoring system from time to time;
(6) according to the data information collected by the current data collector 2, the relevant parameters aiming at the printing and sintering modes in the data management system are called and compared with the data information collected by the data collector 2, the optimal sintering process parameters under the printing module are established through a self-learning module, a self-diagnosis module and a self-decision module, and the relation between the optimal printing speed and the sintering speed is determined;
(7) transmitting the obtained data information of the relation between the optimal sintering process parameters and the optimal printing speed and sintering speed to a self-learning module for self deep learning;
(8) the data acquisition unit 2 acquires information such as sintering temperature, speed, sintering quality and the like and transmits the information to the self-diagnosis module for judgment, so that the sintering efficiency and quality are ensured;
(9) according to the data information acquired by the data acquisition device 2, the self-decision module can make a decision according to the conformity degree of the data information, and is implemented by the self-execution module, and the self-decision module can make the corrections of the sintering line track, the sintering termination, the sintering speed change, the sintering temperature change, the height change of the laser emission point and the sintering section.
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