CN105113111B - A kind of computer automatic yarn changing machine real-time control system and control method - Google Patents

A kind of computer automatic yarn changing machine real-time control system and control method Download PDF

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CN105113111B
CN105113111B CN201510510403.5A CN201510510403A CN105113111B CN 105113111 B CN105113111 B CN 105113111B CN 201510510403 A CN201510510403 A CN 201510510403A CN 105113111 B CN105113111 B CN 105113111B
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fpga
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controlling unit
port ram
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CN105113111A (en
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彭来湖
查锦
李建强
吕明来
未印
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Zhejiang Rifa Textile Machinery Co Ltd
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Zhejiang Sci Tech University ZSTU
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Abstract

The invention discloses a kind of computer automatic yarn changing machine real-time control system and control method, including man-machine interaction unit, real-time controlling unit and mechanism's execution unit;Wherein described man-machine interaction unit is connected with real-time controlling unit by the two-port RAM based on FPGA;Described real-time controlling unit is connected with mechanism execution unit.System pattern data transmission of the invention is fast, and control accuracy is high, can shorten the research and development of products cycle, and improves the colored cloth quality of production, and ensures the reliability of system production.

Description

A kind of computer automatic yarn changing machine real-time control system and control method
Technical field
The present invention relates to a kind of computer automatic yarn changing machine real-time control system and control method, belong to Knitting Machinery numerical control skill Art field.
Background technology
Computer automatic yarn changing machine is widely used in knitting needle industry, and computer automatic yarn changing machine on the market is divided into 3 colors, 4 at present Color, 5 colors and 6 colors.But the producer of the color automatic yarn changing large circle machine of digital control computer six of state's interior energy independent research is very few, release Machine there is also the problems such as rotating speed is relatively slow, control accuracy is not high, it is difficult to the need for meeting China's hosiery industry development.
The content of the invention
In order to overcome existing computer automatic yarn changing control system braiding speed slower, the research and development of products cycle is long, control accuracy It is not high, cause the second-rate of cloth braiding, the present invention provides a kind of pattern data transmission soon, and control accuracy is high, can shorten The research and development of products cycle, and the colored cloth quality of production is improved, and ensure a kind of computer automatic yarn changing of the reliability of system production Machine real-time control system and control method.
To reach above-mentioned purpose, the technical scheme is that:
A kind of computer automatic yarn changing machine real-time control system, including man-machine interaction unit, real-time controlling unit and mechanism hold Row unit;Wherein described man-machine interaction unit is connected with real-time controlling unit by the two-port RAM based on FPGA;Described Real-time controlling unit is connected with mechanism execution unit;Described mechanism's execution unit includes that variable-frequency motor, slide cam selector, circle zero-bit are passed Sensor, yarn break sensor, dropped stitch sensor, oil leakage sensor, orthogonal encoder;Wherein described variable-frequency motor and variable-frequency motor Drive control circuit is connected, and described variable-frequency motor is also connected with line transfer machine needle cylinder, described variable-frequency motor drive control circuit Isolated by high speed photo coupling with real-time control Duan Yuan and be connected;Described slide cam selector by the two-port RAM based on FPGA with it is real-time Control unit is connected, and described slide cam selector is also connected with line transfer finger;Described circle null pick-up, yarn break sensor, dropped stitch Sensor, oil leakage sensor, orthogonal encoder are isolated by high speed photo coupling with real-time controlling unit and are connected, and are responsible for adopting for signal Collection.
The man-machine interaction unit include S3C6410 controllers, liquid crystal display, touch-screen, Nand flash storages, USB interface and Ethernet interface;Described S3C6410 controllers are respectively by circuit and liquid crystal display, touch-screen, Nand Flash storage, USB interface, Ethernet interface are connected;Described S3C6410 controllers are by the two-port RAM based on FPGA It is connected with real-time controlling unit.
The real-time controlling unit includes ARM controller, the two-port RAM based on FPGA, extends out Flash flower pattern memories Isolate with high speed photo coupling;The wherein described two-port RAM based on FPGA is connected by parallel bus with S3C6410 controllers, The described two-port RAM based on FPGA is connected by circuit with slide cam selector, and the described two-port RAM based on FPGA is by simultaneously Row bus are connected with Flash flower pattern memories are extended out;The described two-port RAM based on FPGA is controlled by parallel bus with ARM Device processed is connected;Described ARM controller is isolated and the circle null pick-up on mechanism's execution unit, broken yarn biography by high speed photo coupling Sensor, dropped stitch sensor, oil leakage sensor, orthogonal encoder, variable-frequency motor drive control circuit are connected;Described ARM controls Device is connected by the two-port RAM based on FPGA with slide cam selector;Two-port RAM based on FPGA as man-machine interaction unit with ARM controller completes the synchronous read-write operation of data, realizes the interaction of data and shared, the transmission of completion flower pattern action data, Enhance parallel bus anti-interference.
Described orthogonal encoder is incremental rotary encoder.
A kind of computer automatic yarn changing machine real-time control control method, comprises the following steps:
1)First-selection is shown by described liquid crystal display and the flower pattern file of customer demand is passed through into usb bus by operating Interface or Ethernet switch import S3C6410 controllers, then enter real-time using the described two-port RAM based on FPGA In control unit, and corresponding braiding file is parsed into by the ARM controller on described ARM real-time controlling units, be stored in Described ARM controller extends out flash storage;
2)Thread-adjusting machine start button is pressed, the ARM controller of described real-time controlling unit control starts variable-frequency motor and drives Dynamic control circuit, described variable-frequency motor drive control circuit drives variable-frequency motor works to drive line transfer machine needle cylinder to rotate, Gu The orthogonal encoder being scheduled on described line transfer machine needle cylinder reads current pin digit pulse;Described orthogonal encoder revolves for increment type Turn encoder, using positive and negative two-way step-by-step counting, substantially increase control accuracy;
3)According to step 1)The corresponding braiding file and step 2 being parsed into)In pin digit pulse count, and circle zero-bit pass Sensor realizes positioning to system zero testing, and described real-time controlling unit is by the two-port RAM handle action based on FPGA Data are sent in slide cam selector, and described slide cam selector and line transfer machine needle cylinder synchronous axial system simultaneously drive different line transfer fingers to complete 6 Plant the replacing of yarn color;
4)The also execution system operation monitoring of the ARM controller of described real-time controlling unit;When described yarn break sensor, When dropped stitch sensor, oil leakage sensor have sensed that broken yarn, dropped stitch or oil leak situation occur, described real-time controlling unit When ARM controller isolates the alarm signal for receiving detection signal exception by high speed photo coupling, stopping alarm treatment is performed.
5)Repeat second and third, FOUR EASY STEPS, until completing whole thread-adjusting machine knitting process.
The beneficial effects of the invention are as follows:Computer automatic yarn changing machine real-time control system of the invention and control method use three Layer distributed structure/architecture, includes man-machine interaction unit, real-time controlling unit and actuator unit, and it is realized at a high speed, accurately Control braiding, improve the production efficiency of system.Man-machine interaction unit is with real-time controlling unit using the both-end based on FPGA Mouth RAM technologies are read and write while realizing that flower pattern file is transmitted, and data transmission efficiency are improved, while as slide cam selector driving data Temporary location, reduces parallel bus length, reduces interference, advantageously ensures that the uniformity of sequential and the stability of data. Slide cam selector is driven using parallel address date multiplex bus clocking information line mode, the real-time of system braiding is improve. Using bus with each actuator is connected by the way of light-coupled isolation so that the wiring of thread-adjusting machine is simplified, and ensures each list Independence between unit, improves the reliability of system.Various sensor signals are carried out using bus mode with real-time controlling unit Communication, can make real-time controlling unit realize more accurately controlling, and increased the closed-loop control of system, improve system Stability.Real-time, reliability of the proposition of the invention in thread-adjusting machine control system, have carried out greatly carrying in control accuracy It is high, it is ensured that the braiding of the colored cloth in high-effect high-quality ground.
Brief description of the drawings
Fig. 1 is the schematic diagram of computer automatic yarn changing machine real-time control system of the invention.
Specific embodiment
Embodiment 1
A kind of computer automatic yarn changing machine real-time control system of the present embodiment, as shown in figure 1, including man-machine interaction unit 1st, real-time controlling unit 2 and mechanism's execution unit 3;Wherein described man-machine interaction unit 1 is with real-time controlling unit 2 by being based on The two-port RAM 14 of FPGA is connected, and carries out data interaction and shares;Described real-time controlling unit 2 and mechanism's execution unit 3 It is connected;Described mechanism's execution unit 3 includes variable-frequency motor 5, slide cam selector 7, circle null pick-up 9, yarn break sensor 10, dropped stitch Sensor 11, oil leakage sensor 12, orthogonal encoder 13, described orthogonal encoder 13 are incremental rotary encoder;Wherein Described variable-frequency motor 5 is connected with variable-frequency motor drive control circuit 4, described variable-frequency motor 5 also with the phase of line transfer machine needle cylinder 6 Even, line transfer machine needle cylinder 6 is driven to rotate, described variable-frequency motor drive control circuit 4 passes through high speed photo coupling with real-time control section unit 2 Isolation 16 is connected;Described slide cam selector 7 is connected by the two-port RAM 14 based on FPGA with ARM controller 23, is communicated, Described slide cam selector 7 is also connected with line transfer finger 8, drives line transfer finger 8 to act;Described circle null pick-up 9, broken yarn sensing Device 10, dropped stitch sensor 11, oil leakage sensor 12, orthogonal encoder 13 isolate 16 with real-time control section unit 2 by high speed photo coupling It is connected, is responsible for the collection of signal.
The man-machine interaction unit 1 includes S3C6410 controllers 20(S3C6410 controllers are based on ARM1176JZF-S's Core, using Wince systems, is purchased from Samsung of South Korea), liquid crystal display 21, touch-screen 22, Nand flash storages 17, Usb 18 and Ethernet interface 19;Described S3C6410 controllers 20 are respectively by circuit and liquid crystal display 21, touch Screen 22, Nand flash storages 17, usb 18, Ethernet interface 19 are connected;Described S3C6410 controllers 20 pass through Two-port RAM 14 based on FPGA is connected with real-time controlling unit 2;Described man-machine interaction unit 1 mainly provides the user friend Good human-computer interaction interface, is shown and is changed in real time to thread-adjusting machine control system parameter, and flower pattern file parsing etc..
The real-time controlling unit 2 includes ARM controller 23,(The chip model that ARM controller 23 is used is STM32F407ZET6, is purchased from Italian ST Microelectronics), the two-port RAM 14 based on FPGA,(Chip model is CME-M7, is purchased from system in Beijing Jing Wei Ya lattice Science and Technology Ltd.), extend out Flash flower pattern memory 15 and high speed photo coupling isolation (16);The wherein described two-port RAM 14 based on FPGA is connected by parallel bus with S3C6410 controllers 20, described Two-port RAM 14 based on FPGA is connected by circuit with slide cam selector 7, and the described two-port RAM 14 based on FPGA passes through Parallel bus is connected with Flash flower pattern memory 15 is extended out;The described two-port RAM 14 based on FPGA passes through parallel bus It is connected with ARM controller 23;Described ARM controller 23 is isolated and the circle zero-bit on mechanism's execution unit 3 by high speed photo coupling Sensor 9, yarn break sensor 10, dropped stitch sensor 11, oil leakage sensor 12, orthogonal encoder 13, variable-frequency motor drive control Circuit 4 is connected;Described ARM controller 23 is connected by the two-port RAM 14 based on FPGA with slide cam selector 7;It is described based on The two-port RAM 14 of FPGA completes the synchronous read-write operation of data as man-machine interaction unit 1 with ARM controller 23, realizes number According to interaction with it is shared, while as slide cam selector 7 and the pattern data buffering area of ARM controller 23, completing needle selection action data Transmission, enhance parallel bus anti-interference.
A kind of computer automatic yarn changing machine real-time control control method, comprises the following steps:
1)Shown by described liquid crystal display 21 first and by operating that the flower pattern file of customer demand is total by USB Line interface 18 or Ethernet switch 19 import S3C6410 controllers 20, then using the described two-port RAM based on FPGA 14 enter in real-time controlling unit 2, and are parsed into corresponding volume by the ARM controller 23 on described real-time controlling unit 2 File is knitted, be stored in described ARM controller 23 extends out flash storage 15;
2)Thread-adjusting machine start button is pressed, the ARM controller 23 of described real-time controlling unit control 2 starts variable-frequency electric Machine drive control circuit 4, described variable-frequency motor drive control circuit 4 drives the work of variable-frequency motor 5 to drive line transfer machine needle cylinder 6 Rotate, the orthogonal encoder 13 being fixed on described line transfer machine needle cylinder 6 reads current pin digit pulse;Described orthogonal encoder 13 is incremental rotary encoder, using positive and negative two-way step-by-step counting, substantially increases control accuracy;
3)According to step 1)The corresponding braiding file and step 2 being parsed into)In pin digit pulse count, and circle zero-bit pass Sensor 9 realizes positioning to system zero testing, and described real-time controlling unit 2 is by the two-port RAM 14 based on FPGA Action data is sent in slide cam selector 7, and described slide cam selector 7 and the synchronous axial system of line transfer machine needle cylinder 6 simultaneously drive different line transfer hands Refer to that 8 complete 6 kinds of replacings of yarn color;
4)The also execution system operation monitoring of the ARM controller 23 of described real-time controlling unit 2;When described broken yarn is sensed When device 10, dropped stitch sensor 11, oil leakage sensor 12 have sensed that broken yarn, dropped stitch or oil leak situation occur, described real-time control When the ARM controller 23 of unit processed 2 isolates the alarm signal that 12 receive detection signal exception by high speed photo coupling, shutdown is performed Alert process.
5)Repeat second and third, FOUR EASY STEPS, until completing whole thread-adjusting machine knitting process.
The computer automatic yarn changing machine real-time control system and control method of the present embodiment use Triple distribution framework, including Man-machine interaction unit 1, real-time controlling unit 2 and actuator unit 3, its realize at a high speed, be accurately controlled braiding, raising The production efficiency of system.Man-machine interaction unit 1 is with real-time controlling unit 2 using the technology reality of two-port RAM 14 based on FPGA Existing flower pattern file is read and write while transmission, improves data transmission efficiency, while as the temporary location of the driving data of slide cam selector 7, Parallel bus length is reduced, interference is reduced, the uniformity of sequential and the stability of data is advantageously ensured that.Using parallel Address date multiplex bus clocking information line mode drives slide cam selector 7, improves the real-time of system braiding.Using bus with The mode of light-coupled isolation connects each actuator so that the wiring of thread-adjusting machine is simplified, and ensures the independence between each unit Property, improve the reliability of system.Various sensor signals are communicated using bus mode with real-time controlling unit, can be made Real-time controlling unit is realized more accurately controlling, and increased the closed-loop control of system, improves the stability of system.This reality Real-time, reliability of the proposition of example in thread-adjusting machine control system are applied, great raising has been carried out in control accuracy, it is ensured that be high Imitate the braiding of colored cloth in high quality.

Claims (4)

1. a kind of computer automatic yarn changing machine real-time control system, it is characterised in that:Including man-machine interaction unit (1), real-time control Unit (2) and mechanism's execution unit (3);Wherein described man-machine interaction unit (1) is with real-time controlling unit (2) by being based on The two-port RAM (14) of FPGA is connected;Described real-time controlling unit (2) is connected with mechanism's execution unit (3);Described mechanism Execution unit (3) includes variable-frequency motor (5), slide cam selector (7), circle null pick-up (9), yarn break sensor (10), dropped stitch sensing Device (11), oil leakage sensor (12), orthogonal encoder (13);Wherein described variable-frequency motor (5) and variable-frequency motor drive control Circuit (4) is connected, and described variable-frequency motor (5) is also connected with line transfer machine needle cylinder (6), described variable-frequency motor drive control circuit (4) isolate (16) by high speed photo coupling with real-time controlling unit (2) to be connected;Described slide cam selector (7) is by double based on FPGA Port ram (14) is connected with real-time controlling unit (2), and described slide cam selector (7) is also connected with line transfer finger (8);Described circle Null pick-up (9), yarn break sensor (10), dropped stitch sensor (11), oil leakage sensor (12), orthogonal encoder (13) and reality When control unit (2) by high speed photo coupling isolate (16) be connected;The man-machine interaction unit (1) includes S3C6410 controllers (20), liquid crystal display (21), touch-screen (22), Nand flash storages (17), USB interface (18) and Ethernet interface (19);Described S3C6410 controllers (20) are respectively by circuit and liquid crystal display (21), touch-screen (22), Nand Flash storage (17), USB interface (18), Ethernet interface (19) are connected;Described S3C6410 controllers (20) are by base It is connected with real-time controlling unit (2) in the two-port RAM (14) of FPGA.
2. a kind of computer automatic yarn changing machine real-time control system as claimed in claim 1, it is characterised in that:The real-time control Two-port RAM (14) of the unit (2) including ARM controller (23), based on FPGA, extend out Flash flower pattern memory (15) and height Fast light-coupled isolation (16);The wherein described two-port RAM (14) based on FPGA is by parallel bus and S3C6410 controllers (20) it is connected, the described two-port RAM (14) based on FPGA is connected by circuit with slide cam selector (7), it is described based on FPGA Two-port RAM (14) be connected with Flash flower pattern memory (15) is extended out by parallel bus;The described both-end based on FPGA Mouth RAM (14) is connected by parallel bus with ARM controller (23);Described ARM controller (23) is isolated by high speed photo coupling Respectively with mechanism's execution unit (3) on circle null pick-up (9), yarn break sensor (10), dropped stitch sensor (11), oil leak pass Sensor (12), orthogonal encoder (13), variable-frequency motor drive control circuit (4) are connected;Described ARM controller (23) is by base It is connected with slide cam selector (7) in the two-port RAM (14) of FPGA.
3. a kind of computer automatic yarn changing machine real-time control system as claimed in claim 1 or 2, it is characterised in that:It is described just It is incremental rotary encoder to hand over encoder (13).
4. a kind of control method of computer automatic yarn changing machine real-time control system as claimed in claim 1, it is characterised in that bag Include following steps:
1) shown by described liquid crystal display (21) first and the flower pattern file of customer demand is passed through into USB interface by operating (18) or Ethernet interface (19) import S3C6410 controllers (20), then using the described two-port RAM based on FPGA (14) enter in real-time controlling unit (2), and be parsed into by the ARM controller (23) on described real-time controlling unit (2) Corresponding braiding file, be stored in described ARM controller (23) extends out Flash flower pattern memory (15);
2) thread-adjusting machine start button is pressed, the ARM controller (23) of described real-time controlling unit (2) control starts variable-frequency motor Drive control circuit (4), described variable-frequency motor drive control circuit (4) drives variable-frequency motor (5) work to drive thread-adjusting machine Syringe (6) is rotated, and the orthogonal encoder (13) being fixed on described line transfer machine needle cylinder (6) reads current pin digit pulse;It is described Orthogonal encoder (13) be incremental rotary encoder, using positive and negative two-way step-by-step counting, substantially increase control accuracy;
3) according to step 1) the corresponding braiding file that is parsed into and step 2) in pin digit pulse count, and circle null pick-up (9) positioning is realized to system zero testing, described real-time controlling unit (2) is by the two-port RAM (14) based on FPGA Action data is sent in slide cam selector (7), described slide cam selector (7) and line transfer machine needle cylinder (6) synchronous axial system simultaneously drive difference Line transfer finger (8) complete 6 kinds of replacings of yarn color;
4) the also execution system operation monitoring of the ARM controller (23) of the real-time controlling unit (2) described in;When described broken yarn is sensed It is described when device (10), dropped stitch sensor (11), oil leakage sensor (12) have sensed that broken yarn, dropped stitch or oil leak situation occur The ARM controller (23) of real-time controlling unit (2) is isolated (16) and receives the abnormal alarm signal of detection signal by high speed photo coupling Number when, perform stopping alarm treatment;
5) repeat second and third, FOUR EASY STEPS, until completing whole thread-adjusting machine knitting process.
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CN106886186A (en) * 2017-04-27 2017-06-23 浙江理工大学 A kind of active dynamic of circular knitting machine based on ARM send yarn control device
CN108251958B (en) * 2018-03-30 2023-10-20 江苏润山精密机械科技有限公司 Power-off compensation system for circular knitting machine
CN108588948B (en) * 2018-07-12 2024-01-30 蔺会强 Electronic jacquard control system
CN115821474A (en) * 2022-11-04 2023-03-21 连云港元丰机械制造有限公司 Weaving pattern compiling system and control method thereof

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