CN101021024A - Electronic jacquard loom controller - Google Patents
Electronic jacquard loom controller Download PDFInfo
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- CN101021024A CN101021024A CN 200610154942 CN200610154942A CN101021024A CN 101021024 A CN101021024 A CN 101021024A CN 200610154942 CN200610154942 CN 200610154942 CN 200610154942 A CN200610154942 A CN 200610154942A CN 101021024 A CN101021024 A CN 101021024A
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Abstract
The electronic jacquard loom controller consists of a main control board based on monochip computer, an expanding interface and a USB electronic disk interface circuit mainly. The USB electronic disk interface circuit is used for reading the pattern data into the monochip computer so as to control the cock in the electronic jacquard loom by means of the monochip computer and the expanding interface. The present invention uses USB disk, rather than floppy disk, for pattern inputting, and thus has short input time and no limitation on weft number. The controller has USB port for communication with PC and makes it possible to realize on-line control of the jacquard loom. The present invention adopts Flash disk for pattern memory, and has less data loss and easy expansion.
Description
Technical field
The present invention relates to a kind of electronic jacquard equipment, especially, relate to a kind of electronic jacquard loom controller.
Background technology
Electronic jacquard machine has integrated modern electronic technology, cooperates the needle structure of cam-type to realize not having at a high speed the jacquard weave of line version.Because it is simple in structure, speed is high, quality good, at home and abroad is used widely.Current, the most representative with the electronic jacquard machine that Britain Bonas, French Staubli, German Gross company are developed, but its expensive price makes domestic most enterprise forbidding.Usually, homemade jacquard use more single-chip microcomputer control (as article: Zhuge Zhenrong etc. use μ C/OS-II system and realize electronic jacquard machine control [J]. textile journal, 24 (5): 104-105,2003), the embedded scheme of employing or direct PC field control scheme (as patent CN 1459523A) are but also arranged, but on function and stability, can't compare with external like product, and the style of disk form is oversize input time, and electric board all allows the user be difficult to accept because copy deletion action repeatedly can produce fragment.
For solving the problems referred to above that current homemade jacquard exists, this paper has proposed a kind of new SCM Based electronic jacquard loom controller.This controller is a core with the W78E516B single-chip microcomputer, and peripheral expansion partly comprises the signal (data, clock, latch, enable) of control and receives synchronizing signal etc.; Man-machine interface partly comprises liquid crystal display, keyboard, USB input interface etc.
Summary of the invention
The object of the present invention is to provide a kind of electronic jacquard loom controller, slow excessively to solve existing jacquard control system style storage speed, capacity is limited, and industry is not suitable for directly using the problem of PC control now.
In order to realize this goal of the invention, the present invention has adopted following technical scheme: a kind of electronic jacquard loom controller, mainly form by SCM Based master control borad and expansion interface and USB electronic disk interface circuit, described USB electronic disk interface circuit is used for the style data are read in single-chip microcomputer, realizes control to the jacquard tap by single-chip microcomputer and expansion interface.
Further, described SCM Based master control borad and expansion interface be by serial communication interface, keyboard interface, and LCD interface, and the data-interface that expands is formed.
Further, described serial communication interface is the standard interface of building with the MAX232 chip; Described keyboard interface makes up by two 74HC139, a slice 74HC374 and a slice HC244, determines key assignments according to the state of vertical x wire; The kernel control chip that described LCD interface adopts is a SED1335 series.Utilize the current production status of liquid crystal display: the title of style, warp, latitude, jacquard method, the loom speed of a motor vehicle, output, current output, current latitude number, loom state, error situation, and the black and white pattern of current style; Described expansion interface comprises and selects the colour atla interface, leading state indication interface, tap protection interface, data detection and coffret; The control chip that described USB electronic disk interface circuit adopts is CH375.
The present invention has the following advantages with respect to prior art:
1. it breaks through the method for in the past importing style by floppy disk, uses USB flash disk to realize the input of style, has greatly shortened input time, has also solved the restricted problem of style latitude number simultaneously.Controller uses serial ports and PC communication, and can realize the jacquard networking control as required.The Flash electric board is adopted in the style storage, and data are difficult for losing and expansion easily, and makes electric board can not produce fragment and garbage files by writing new file management system.A series of functions such as extraction, storage, transmission, verification, output have been realized by software engineering from style information, and jacquard method can make up arbitrarily, can there be shuttle, shuttleless loom to match with the various models of 672 pins, 1344 pins, 2688 pins, thereby reduced production cost, improve operating efficiency, and improved the level of digital of weaving jacquard control system greatly.
2. compare with similar products at home and abroad, this controller is not only stable, and perfect in shape and function, has increased to comprise such as functions such as hang-up protections.Facts have proved that the defencive functions such as hang-up that are automatically retracted back into original position are accurately stable.
3. use floppy disk to carry out the style input with quasi-controller both at home and abroad, the style of a 100k generally all needs (to get according to the on-the-spot test personnel estimate) about 5 minutes more.This controller style is by USB mouth input, and the style of a 240k of the maximum of on-the-spot test is estimated that copy time should be at 0.2s with interior.Such time frame operating personnel are imperceptible at all.
4. the direct dangerous factors of instability of control at the scene of individual pc machine have been avoided using.
5. the file management system of controller can not produce any disk fragments or garbage files because of so repeatedly operation on electric board.
6. this controller has realized that also unit communicates by letter with PC, can realize the jacquard networking control in the workshop according to user's needs, thereby realizes networking control and manage.
Description of drawings
Fig. 1 is the fundamental diagram of electronic jacquard loom controller of the present invention;
Fig. 2 is the control circuit board sketch of electronic jacquard loom controller of the present invention;
Fig. 3 is the program circuit schematic diagram of electronic jacquard loom controller of the present invention.
The specific embodiment
Specify the present invention below with reference to the accompanying drawings.
By the USB flash disk interface style data are read in electric board on controller or the controller, realize control the jacquard tap by single-chip microcomputer and expansion interface.Be example with one-period (being loom work one shuttle) below, briefly introduce the operation principle and the process of electronic jacquard, as shown in Figure 1.
Electronic jacquard machine is delivered to the style of front end CAD computer design on the jacquard by removable electronic storage medium, utilizes single-chip microcomputer to send 4 road signals to tap, and promptly clock (ClkI), data (DatI), data latch (StrI) and output enable (OenI).For the whether correct needs of check transmission, utilize the method that repeats to transmit data that the data of sending are read out (DatO) again, then with the data contrast of sending, the correctness of sending data for confirmation.In this process,, all convert the signal of required transmission to differential signal and transmit in order to ensure the reliability of transmission.When confirm to send data errorless or leading provide the signal (Oprm) that can export after, single-chip microcomputer is sent and is selected look and output enable signal (OenI), thereby tap and loom cooperation are finished a cycle of operation.After system validation tap and loom are in normal condition, promptly enter the cycle of operation of next shuttle.
Analyzing the main cause that electronic jacquard loom controller in the past gets its fluctuation of service is exactly that driving force deficiency of circuit or the like is disturbed in the contactor igniting.Design new controller in view of the above, hardware control circuit plate sketch as shown in Figure 2.Adopt the CPU of W78E516B single-chip microcomputer as master board, it is a kind of low-power consumption, high-performance, the 8-bit microprocessor compatible fully with the 89C52 single-chip microcomputer, be responsible for PC communicate by letter the processing external information, the display device state is for jacquard assembly provides the jacquard weave data.The 64K FLASH EPROM of CPU inside is as program storage, expansion 62256 as data RAM (hereinafter to be referred as RAM), utilize 138 expansion 32M BIT FLASHEPROM to be used for storing style.By the read-write direction of the outside style store electrons dish of 741s245 (1) control, also be simultaneously the requirement that improves the FPDP driving force.By 138 (2) keyboard, liquid crystal, USB flash disk interface and two 8255 are carried out the sheet choosing.245 (2) effect mainly is to improve driving force.Two 8255 chips are used for extension color card, extended address mouth, tap protection interface, state indication mouth and data detection interface.
For realize with PC communicate by letter low-power consumption, single supply pair RS-232 transmission/receivers that the electrical level transferring chip of employing adopts Maxim company to produce.This chip is applicable to various EIA-232 and communication interface V.28/V.24.Chip internal has a supply voltage converter, can become the required 10V voltage signal of RS-232C output level to the 5V power conversion of input.Utilize this PORT COM, can monitor in real time jacquard, and can be connected, to realize the networking of electronic jacquard machine group control system with the LAN of factory by PC.
For making the signal transmission more reliable, signal adopts the difference form transmission.MC3486 and MC3487 are adopted in differential signal input and output conversion.This two chip is 4 road switching devices, can satisfy actual requirement.
The serial mode that is transmitted as owing to data, so adopt 8 Bits Serial shift register HCF4094 that serial data is become parallel data, HCF4094 also has cascade function, data are delivered to last shift register always, providing a signal then just can discharge all data, the data that discharge are amplified through Darlington transistor again, and the electromagnet component that just can drive tap is respectively carried through function with realization.
Transmitted slow and the limited problem of latitude number in order to solve style, traditional software excuse mode is changed in the style input of man-machine interface part, and what this controller adopted is the USB flash disk interface.That control chip adopts is CH375.CH375 is the common interface chip of a usb bus, supports HOST host mode and SLAVE DeviceMode.At local side, CH375 has 8 bit data bus and reading and writing, sheet select control line and interrupt output, can be articulated to easily on the system bus of single-chip microcomputer.Under the usb host mode, CH375 also provides serial communication mode, is connected with single-chip microcomputer by serial input, serial output and interruption output.
Because USB supports dynamically plug, all there is the power supply decoupling capacitance USB flash disk inside.When USB flash disk is just plugged, because the electric capacity both end voltage can not be suddenlyd change, so cause the supply voltage VCC bust of host side, this voltage die process may have only tens microseconds even hundreds of nanosecond, but in case detected by CH375 or uP supervisory circuit, will be taken as electricity under power supply electrifying or the power supply, thereby might cause CH375 and single-chip microcomputer to be reset.For addressing this problem, adopted two measures simultaneously: between USB flash disk and USB socket, add the USB extended line, like this, when USB flash disk inserts by the USB extended line, because extended line itself has dead resistance and stray inductance, thereby has reduced the influence to main power source; At the bigger storage capacitor of the power end parallel connection of USB flash disk mouth, enough instantaneous electric energy when just inserting, USB flash disk are provided, reduce influence to supply voltage.In actual applications, adopted the tantalum electrochemical capacitor of 470uF.What need particularly point out is, though the capacity of common electrochemical capacitor is bigger, its stray inductance is bigger, and enough instantaneous electric energy can not be provided, and can only slowly provide, so effect is relatively poor.
The main program FB(flow block) of electronic jacquard loom controller is seen Fig. 3.File management system under W78E516B, setting up below, and corresponding USB flash disk interface drive program describes.
File management system of the present invention has realized comprising the read operation of USB flash disk file, and the reading and writing and the deletion action of controller electric board file.The capacity (generally all be 256M or more than) of considering USB flash disk with respect to the electric board capacity of controller, all is sizable, so do not support temporarily USB flash disk write and delete this two operations.This management system has should be noted that at 2: electric board chip AT29C040 read-write the time all is to be unit with page or leaf (1 page is 256 bytes); Electric board file management form must be compatible mutually with the file management form of USB flash disk.
USB flash disk interface control and documentor have control chip supplier that subroutine library of MCS51 single-chip microcomputer is provided, because the CH375 part agreement of internal USB mass memory unit, so external program is simplified very much.The subroutine library of simplifying of the employed support inquiry mode of this controller, and the author only takies about 7KB program space for the code that cooperates the electric board operation to add, take the external RAM of the internal RAM and 512 bytes of about 90 bytes, and support FAT12 and FAT16 file system.
The electric board way to manage is provided with as follows: 4M byte electric board is divided into 64, and every is divided into 256 pages, and every page is 256 bytes.The 0th various information except that the file particular content that are used for depositing whole file system.Wherein, the 0th to the 3rd page is used for depositing filename, size and deposit position, and each file takies 16 bytes; Deposit the root table for the 4th to the 7th page, the root table has promptly been deposited file and specifically taken which piece in electric board, and each file also is to take 16 bytes in the root table; Deposit total number of files in used table and the electric board for the 8th page, the used table is which piece of mark is occupied, and the used table has only been used the 8th page the 0th to 63 byte, and each byte is represented 1, and 0 expression is empty, and 1 expression takies, and the 64th byte deposited total number of files.The file particular content is then deposited by the 1st BOB(beginning of block).The 0th byte is always 1 in the Used table, and has taked safeguard measure in the operation of program, and purpose is to prevent that it is written as 0 and the 0th blocks of data is destroyed by mistake.
Write original place page or leaf again after electric board being write or during deletion action, operating data place page or leaf all must be read among the RAM earlier at every turn, carry out action required in RAM, this is by the chip used decision of electric board itself.Top way to manage can be compatible mutually with the USB flash disk file management system.
The management system of above-mentioned proposition is all restricted to number of files and single file size, and promptly number of files can not surpass 64, and single file can not surpass 1M.Fortunately, these have been enough to satisfy most demands of user in actual applications.Even run into the problem that number of files or single file size surpass restriction, the user can also select directly to carry out the jacquard weave operation from the USB flash disk read data, thereby has avoided above-mentioned restriction.
The foregoing description is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (7)
1. electronic jacquard loom controller, it is characterized in that: mainly form by SCM Based master control borad and expansion interface and USB electronic disk interface circuit, described USB electronic disk interface circuit is used for the style data are read in single-chip microcomputer, realizes control to the jacquard tap by single-chip microcomputer and expansion interface.
2. electronic jacquard loom controller as claimed in claim 1 is characterized in that: described SCM Based master control borad and expansion interface be by serial communication interface, keyboard interface, and LCD interface, and the data-interface that expands is formed.
3. electronic jacquard loom controller as claimed in claim 2 is characterized in that: described serial communication interface is the standard interface of building with the MAX232 chip.
4. electronic jacquard loom controller as claimed in claim 2 is characterized in that: described keyboard interface makes up by two 74HC139, a slice 74HC374 and a slice HC244, determines key assignments according to the state of vertical x wire.
5. electronic jacquard loom controller as claimed in claim 2 is characterized in that: the kernel control chip that described LCD interface adopts is a SED1335 series.Utilize the current production status of liquid crystal display: the title of style, warp, latitude, jacquard method, the loom speed of a motor vehicle, output, current output, current latitude number, loom state, error situation, and the black and white pattern of current style.
6. electronic jacquard loom controller as claimed in claim 2 is characterized in that: described expansion interface comprises and selects the colour atla interface, leading state indication interface, tap protection interface, data detection and coffret.
7. electronic jacquard machine control system as claimed in claim 1 is characterized in that: the control chip that described USB electronic disk interface circuit adopts is CH375.The support of this interface dynamically plugs.
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| CN 200610154942 CN101021024A (en) | 2006-11-30 | 2006-11-30 | Electronic jacquard loom controller |
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| CN 200610154942 CN101021024A (en) | 2006-11-30 | 2006-11-30 | Electronic jacquard loom controller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286821A (en) * | 2011-07-04 | 2011-12-21 | 烟台宋和宋科学技术应用工程有限责任公司 | Electronic jacquard controller |
| CN102978820A (en) * | 2012-12-03 | 2013-03-20 | 吴江市社翊纺织有限公司 | Control device of electronic jacquard cylinder of jacquard machine |
| CN103966719A (en) * | 2014-03-25 | 2014-08-06 | 江苏宋和宋智能科技有限公司 | Dornier weaving machine color selection system controlled according to switching value of jacquard weft selecting board |
| CN104032437A (en) * | 2014-06-30 | 2014-09-10 | 徐心亿 | Control device of jacquard machine |
| CN114703581A (en) * | 2022-04-18 | 2022-07-05 | 南通佳立禾机电有限公司 | Electronic jacquard machine control system |
-
2006
- 2006-11-30 CN CN 200610154942 patent/CN101021024A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286821A (en) * | 2011-07-04 | 2011-12-21 | 烟台宋和宋科学技术应用工程有限责任公司 | Electronic jacquard controller |
| CN102978820A (en) * | 2012-12-03 | 2013-03-20 | 吴江市社翊纺织有限公司 | Control device of electronic jacquard cylinder of jacquard machine |
| CN103966719A (en) * | 2014-03-25 | 2014-08-06 | 江苏宋和宋智能科技有限公司 | Dornier weaving machine color selection system controlled according to switching value of jacquard weft selecting board |
| CN104032437A (en) * | 2014-06-30 | 2014-09-10 | 徐心亿 | Control device of jacquard machine |
| CN114703581A (en) * | 2022-04-18 | 2022-07-05 | 南通佳立禾机电有限公司 | Electronic jacquard machine control system |
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Open date: 20070822 |