CN103660640A - High-speed inkjet printer control system adopting FPGA to realize bit operation - Google Patents
High-speed inkjet printer control system adopting FPGA to realize bit operation Download PDFInfo
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- CN103660640A CN103660640A CN201210357897.4A CN201210357897A CN103660640A CN 103660640 A CN103660640 A CN 103660640A CN 201210357897 A CN201210357897 A CN 201210357897A CN 103660640 A CN103660640 A CN 103660640A
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Abstract
Provided is a high-speed inkjet printer control system adopting an FPGA to realize bit operation. The high-speed inkjet printer control system comprises a mother board, a trolley board and a PC. The mother board and the trolley board are connected via an LVDS. The mother board and the PC are connected via a network port and/or a USB. An MCU acts as a core of the mother board. A PC communication module, a trolley board communication module, the FPGA, a stepping motor control module and an ink-supplying system control module are connected onto the MCU. A single-chip microcomputer acts as the core of the trolley board. A mother board communication module, a voltage regulating module and a spraying head communication module are connected onto the single-chip microcomputer. The trolley board communication module and the mother board communication module are connected by utilizing the LVDS so that information intercommunication between the mother board and the trolley board is realized. Operation speed is obviously enhanced by the high-speed inkjet printer control system, and printing speed can also be obviously enhanced simultaneously.
Description
Technical field
The present invention relates to air brushing technical field, be specifically related to adopt FPGA to realize the high speed spray-painting machine control system of bit arithmetic.
Background technology
At present, along with economic development, on market, high-quality image output, colored rendering figure export, put on display the demand sharp increase of the business such as advertisement design, GIS-Geographic Information System figure output, the printing of large format placard, billboards making, cause advertising and press to have very large demand to large format color spray drawing machine, possess air brushing quality fineness, flexible operation, cheap, the speed of publishing picture is fast, print mode is various and can provide the spray drawing apparatus of the mode such as indoor, outdoor very powerful and exceedingly arrogant especially.The spray drawing machine of application is generally 3.2 meters or 5 meters in the market, is mainly used on advertising sector, for large-scale outdoor advertising.The process that spray drawing machine system realizes air brushing is: the view data that PC main frame is responsible for sending control command and is needed air brushing; Spray drawing machine is responsible for receiving and carrying out the control command that PC is sent, and receives the view data that PC is sent, and view data is delivered to shower nozzle after treatment, and machine order shower nozzle is done igniting action when appropriate, prints advertising image.
But more there is following defect in present spray-painting machine control system: 1. domestic spray-painting machine control system on the market is all processed image to be put on PC and completed, motherboard or be inserted on the slot of PC, MCU disposal ability very weak (best is with ARM 9), international high-end product is to complete image processing function by motherboard, domestic this condition that do not reach; 2. product all completes image by CPU and processes on the market, and computing speed in position is slow; 3. utilize hardware control logic to change and to adjust shower nozzle ignition voltage with nozzle temperature, this is the common practices in industry, occurs that sometimes virtual voltage and target voltage have the situation of obvious deviation; 4. between many PASS, because machine operation always has deviation, cause the point of two PASS to occur overlapping or separated phenomenon, macroscopic view from picture, has produced so-called " PASS road "; 5. pair horizontal or longitudinal white space, there will be empty spray, and print speed is too slow.
In sum, be necessary spray-painting machine control system to carry out further optimizing and improving, to improve its performance.
Summary of the invention
Technical problem solved by the invention is to provide the high speed spray-painting machine control system that adopts FPGA to realize bit arithmetic, thereby solves the problem in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
Adopt FPGA to realize the high speed spray-painting machine control system of bit arithmetic, comprise motherboard, dolly plate and PC, between described motherboard and described dolly plate, by LVDS, connect, between described motherboard and described PC, by network interface and/or USB, connect; Described motherboard be take MCU as core, is connected with PC communication module, dolly plate communication module, FPGA, step motor control module and ink feeding system control module on described MCU; Described dolly plate be take single-chip microcomputer as core, is connected with motherboard communication module, voltage regulator module and shower nozzle communication module on described single-chip microcomputer; Described dolly plate communication module and described motherboard communication module utilize LVDS to be connected to realize the information mutual communication of described motherboard and described dolly plate.
As a kind of improvement, described MCU has adopted the embedded MCU ARM-Cortex-A8 of excellent performance in industry, compares with ARM9, ARM11, and its architecture is completely different, and performance is significantly improved, and maximum can reach 2400MIPS.Operating system adopts the embedded real-time Linux of customization, integrated real time operating system module, and can support complex software and various Peripheral Interface.
As a kind of improvement, between described PC and described motherboard, adopt gigabit networking and USB3.0, wherein USB3.0 maximum rate can arrive 5Gbps.Product be take support USB2.0 as main on the market.
Whether, as a kind of improvement, described voltage regulator module adopts saturation type voltage to adjust control logic, consistent with desired value by the actual value of detection voltage, if inconsistent, by feedback circuit, adjusts voltage, increases the accurate degree of voltage.Thereby, thoroughly solved the disconnected China ink worry that the extraneous factors such as other system Yin Wendu cause.
In the present invention, in order to reduce the pressure communication between PC communication module and MCU, adopted a kind of compression, decompression algorithm of pipeline system, compression ratio 70%, compression speed 530Mbps, decompress(ion) speed 500Mbps.
Shower nozzle communication module of the present invention adopts many PASS to print, and it is exactly the difference in same region that many PASS print, and is divided into repeatedly and prints.A PASS is the process that dolly moves horizontally in orbit and prints, and the point that each PASS prints, can not repeat, like this, and many PASS resolution ratio that can be multiplied.For each nozzle, the effect of interval spray is also better than full spray, so, increase PASS and also can improve printing effect.Due to identical region, assign to a plurality of PASS and processed, can also alleviate the broken string situation causing due to spray nozzle clogging.
Shower nozzle communication module of the present invention adopts to sprout wings processes to eliminate PASS road.Between a plurality of PASS, because machine operation always has deviation, cause the point of two PASS to occur overlapping or separated phenomenon, macroscopic view from picture, has produced so-called " PASS road ".In order to eliminate PASS road, we have introduced emergence technology, and certain coincidence is carried out in the region that is about to former and later two PASS printings, and the point in the region of coincidence is assigned in different PASS and is gone.The algorithm distributing is, if the closer to the region of a upper PASS, the ratio of distributing point is more, is similar to the emergence (edge is featheriness) in Photoshop.
Shower nozzle communication module of the present invention is longitudinal/horizontal jumps in vain, improves print speed: if find horizontal or longitudinal white space, can skip and not beat, compared with sky, spray, can obviously improve print speed.
In the present invention, described FPGA completes the rotation bit arithmetic that image is processed the inside, has improved very significantly arithmetic speed.Product all completes image rotation by CPU and processes on the market, and the position computing speed that software is realized is slow.The principle that realizes the bit arithmetic of image processing with FPGA is: in FPAG, establish one group of addressable MM register of MCU, after data are also prepared, rotation enables start bit computing, only needs a timeticks can complete the position rotation that image is processed, and result deposits in one group of new MM register.MCU is by postrotational data result retaking of a year or grade.Far calculate the image rotation position that this mode realizes than pure software, and it is fast that speed is wanted!
Owing to having adopted above technical scheme, the present invention has following beneficial effect:
The present invention is directed to spray-painting machine control system and carry out technological innovation, solved high speed image file transfer, compression/de-compression, the processing of embedded high-speed image, hardware rotation algorithm, many PASS image printing, sprouted wings and the key technology difficult problem such as process, two-way jumping is white, improved significantly arithmetic speed, print speed also can obviously improve simultaneously.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Fig. 2 is the structural representation of motherboard;
Fig. 3 is the structural representation of dolly plate.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Referring to Fig. 1, Fig. 2 and Fig. 3, adopt FPGA to realize the high speed spray-painting machine control system of bit arithmetic, comprise motherboard 1, dolly plate 2 and PC 3, between described motherboard 1 and described dolly plate 2, by LVDS, connect, between described motherboard 1 and described PC 3, by network interface, be connected with USB; Described motherboard 1 be take MCU 4 as core, is connected with PC communication module 5, dolly plate communication module 6, FPGA 7, step motor control module 8 and ink feeding system control module 9 on described MCU 4; Described dolly plate 2 be take single-chip microcomputer 10 as core, is connected with motherboard communication module 11, voltage regulator module 12 and shower nozzle communication module 13 on described single-chip microcomputer 10; Described dolly plate communication module 6 and described motherboard communication module 11 utilize LVDS to be connected to realize the information mutual communication of described motherboard 1 and described dolly plate 2.
In the present invention, described MCU 4 has adopted the embedded MCU ARM-Cortex-A8 of excellent performance in industry, compares with ARM9, ARM11, and its architecture is completely different, and performance is significantly improved, and maximum can reach 2400MIPS.Operating system adopts the embedded real-time Linux of customization, integrated real time operating system module, and can support complex software and various Peripheral Interface.
In the present invention, between described PC 3 and described motherboard 1, adopt gigabit networking and USB3.0, wherein USB3.0 maximum rate can arrive 5Gbps.And product be take support USB2.0 as main on the market.
In the present invention, whether described voltage regulator module 12 adopts saturation type voltage to adjust control logic, consistent with desired value by the actual value of detection voltage, if inconsistent, by feedback circuit, adjusts voltage, increases the accurate degree of voltage.Thereby, thoroughly solved the disconnected China ink worry that the extraneous factors such as other system Yin Wendu cause.
In the present invention, in order to reduce the pressure communication between PC communication module 5 and MCU 4, adopted a kind of compression, decompression algorithm of pipeline system, compression ratio 70%, compression speed 530Mbps, decompress(ion) speed 500Mbps.
The present invention adopts many PASS to print, and it is exactly the difference in same region that many PASS print, and is divided into repeatedly and prints.A PASS is the process that dolly moves horizontally in orbit and prints, and the point that each PASS prints, can not repeat, like this, and many PASS resolution ratio that can be multiplied.For each nozzle, the effect of interval spray is also better than full spray, so, increase PASS and also can improve printing effect.Due to identical region, assign to a plurality of PASS and processed, can also alleviate the broken string situation causing due to spray nozzle clogging.
The present invention adopts to sprout wings and processes to eliminate PASS road.Between a plurality of PASS, because machine operation always has deviation, cause the point of two PASS to occur overlapping or separated phenomenon, macroscopic view from picture, has produced so-called " PASS road ".In order to eliminate PASS road, we have introduced emergence technology, and certain coincidence is carried out in the region that is about to former and later two PASS printings, and the point in the region of coincidence is assigned in different PASS and is gone.The algorithm distributing is, if the closer to the region of a upper PASS, the ratio of distributing point is more, is similar to the emergence (edge is featheriness) in Photoshop.
The present invention is longitudinal/horizontal to jump in vain, improves print speed: if find horizontal or longitudinal white space, can skip and not beat, compared with sky, spray, can obviously improve print speed.
In the present invention, described FPGA completes the twiddle operation that image is processed the inside, has improved very significantly arithmetic speed.Product all completes image by CPU and processes on the market, and computing speed in position is slow.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof
.
Claims (9)
1. adopt FPGA to realize the high speed spray-painting machine control system of bit arithmetic, comprise motherboard, dolly plate and PC, it is characterized in that: between described motherboard and described dolly plate, by LVDS, connect, between described motherboard and described PC, by network interface and/or USB, connect; Described motherboard be take MCU as core, is connected with PC communication module, dolly plate communication module, FPGA, step motor control module and ink feeding system control module on described MCU; Described dolly plate be take single-chip microcomputer as core, is connected with motherboard communication module, voltage regulator module and shower nozzle communication module on described single-chip microcomputer; Described dolly plate communication module and described motherboard communication module utilize LVDS to be connected to realize the information mutual communication of described motherboard and described dolly plate.
2. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: in described FPAG, establish the addressable MM register of at least two group MCU; Wherein one group in order to store original digital image data, and FPAG completes the position rotation that image is processed, and result deposits in one group of new MM register; MCU is by the retaking of a year or grade of postrotational view data result.
3. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: described MCU has adopted embedded MCU ARM-Cortex-A8.
4. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: between described PC and described motherboard, adopt gigabit networking and USB3.0.
5. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: described voltage regulator module adopts saturation type voltage to adjust control logic.
6. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: the compression, the decompression algorithm that between described PC communication module and MCU, have adopted a kind of pipeline system.
7. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: described shower nozzle communication module adopts many PASS to print.
8. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: described shower nozzle communication module adopts to sprout wings processes to eliminate PASS road.
9. employing FPGA according to claim 1 realizes the high speed spray-painting machine control system of bit arithmetic, it is characterized in that: white printing type is taked longitudinally/laterally jumped to described shower nozzle communication module.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564028A (en) * | 2014-10-20 | 2016-05-11 | 中国科学院沈阳自动化研究所 | High-speed industrial jet printing control system and method based on FPGA technology |
| CN109062522A (en) * | 2018-09-19 | 2018-12-21 | 浙江昱荣数码喷印技术有限公司 | A kind of printer control system |
| WO2020073836A1 (en) * | 2018-10-13 | 2020-04-16 | 深圳市汉森软件有限公司 | Method and device for processing print data, and storage medium |
| CN111045609A (en) * | 2018-10-13 | 2020-04-21 | 森大（深圳）技术有限公司 | Ink jet printing method, device, equipment and storage medium |
| CN112319050A (en) * | 2020-11-12 | 2021-02-05 | 上海融跃电子科技股份有限公司 | Multi-printing-head inkjet printer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105564028A (en) * | 2014-10-20 | 2016-05-11 | 中国科学院沈阳自动化研究所 | High-speed industrial jet printing control system and method based on FPGA technology |
| CN109062522A (en) * | 2018-09-19 | 2018-12-21 | 浙江昱荣数码喷印技术有限公司 | A kind of printer control system |
| WO2020073836A1 (en) * | 2018-10-13 | 2020-04-16 | 深圳市汉森软件有限公司 | Method and device for processing print data, and storage medium |
| CN111045609A (en) * | 2018-10-13 | 2020-04-21 | 森大（深圳）技术有限公司 | Ink jet printing method, device, equipment and storage medium |
| CN112319050A (en) * | 2020-11-12 | 2021-02-05 | 上海融跃电子科技股份有限公司 | Multi-printing-head inkjet printer system |
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