CN104375467A - Numerical control cutting machine control system based on PCI+DSP+FPGA - Google Patents
Numerical control cutting machine control system based on PCI+DSP+FPGA Download PDFInfo
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- CN104375467A CN104375467A CN201410663437.3A CN201410663437A CN104375467A CN 104375467 A CN104375467 A CN 104375467A CN 201410663437 A CN201410663437 A CN 201410663437A CN 104375467 A CN104375467 A CN 104375467A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/414—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
- G05B19/4148—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller characterised by using several processors for different functions, distributed (real-time) systems
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Abstract
The invention provides a numerical control cutting machine control system based on the PCI+DSP+FPGA. The numerical control cutting machine control system comprises an embedded industrial control computer, a movement control card, an I/O interface plate, a man-machine communication device and a numerical control management module. The embedded industrial control computer, an alternating current servo motor and a drive device of the alternating current servo motor form a servo closed loop system, and the embedded industrial control computer is connected with the movement control card through a PCI bus. The movement control card comprises a DSP, an FPGA and a PCI interface, and the DSP, the FPGA and the PCI interface are sequentially connected with the embedded industrial control computer. The numerical control management module achieves PCI bus drive of the movement control card and the I/O interface plate, monitoring and diagnosis of the I/O interface plate and interaction between a human and a graphical user interface and a file management system of a numerical control system on a Windows system platform. The numerical control cutting machine control system has the advantages of being good in system stability, high in operational capability, high in processing speed, simple in structure and relatively independent in all components. Compared with an existing control system, performance is improved, the cost is reduced, and the control system is extremely easy to assemble, use and upgrade.
Description
Technical field
The present invention relates to control system, specifically, is the control system of numerical control cutting machine of a kind of Based PC I+DSP+FPGA.
Background technology
Existing control system of numerical control cutting machine is mainly divided into two large classes, first kind control system adopts computing machine directly to carry out motion control to motor, it does not have motion control card, directly be connected with cutting machine limit switch with motor driver, relay drive plate by computing machine, complete all Electric Machine Control tasks and the read-write task of input/output port, the control system of this spline structure is by software simulating interpolation operation.Equations of The Second Kind control system adopts motion control special chip to carry out motion control to motor.It adopts computing machine to add motion control special chip forming control system.Carry out motion control arithmetic in this chip, but also provide some application interfaces to the external world.They all belong to the digital control system of enclosed construction, and various places numerical control manufacturer all devises oneself dedicated hardware systems and software systems.This enclosed structure makes the cost of development of digital control system high, and the construction cycle is very long, scaling difficulty, reliability, extensibility, maintainability and ease for use extreme difference, secondary development difficulty.
Find by prior art documents, Lin Jinnan describes the deficiency that existing control system of numerical control cutting machine exists and can be understood as in " development trend of digital control system--digital control system in open type " (" lathe and hydraulic pressure " 2003.NO.6) literary composition: 1. software is occupied by numerical control manufacturer, and Machine Manufacture business is difficult to embody its independence; 2. need to develop special hardware to follow the progress of hardware, generally relatively lag behind; 3. function singleness, is only applicable to machine industry; 4. first kind control system uses Software interpolation pole consumption system resource, and in cutting process, do not have visualization interface, the function of cutting software is also abundant not, and real-time responsiveness is poor, and speed and precision all do not reach the technological requirement of present cutting machine; 5. Equations of The Second Kind control system adopts Windows operating system usually, due to the instability of himself, can cause the instability of whole control system.And Windows belongs to business software, because copyright problem can improve the cost of digital control system undoubtedly.6. the motor movement of Equations of The Second Kind system adopts special chip to complete real-time sampling interpolation, but adopt the system radiating algorithm that is poor, system of special chip to fix, not easy care, upgrading and the renewal of algorithm cannot be carried out, price is also costly.In today of scientific and technological develop rapidly, new technology and new standard constantly gush, and the update cycle of technology accelerates greatly, adopt its life cycle of system of special chip to shorten, bring great technical risk and loss to user.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of reliable and stable, real-time good, precision is high, it is simple and easy to operate, convenient upgrading, Based PC I+DSP+FPGA that cost performance is high control system of numerical control cutting machine.
For achieving the above object, the control system of numerical control cutting machine of Based PC I+DSP+FPGA provided by the invention, comprise the relay of controlled cutter system, limit switch and AC servo motor and drive unit thereof, also comprise embedded industrial control computer, motion control card, I/O interface board, man-machine communication's equipment and numerical control administration module, wherein:
Described embedded industrial control computer and AC servo motor and drive unit thereof form servo closed-loop system, and be connected by pci bus with described motion control card, described motion control card comprises DSP, FPGA and pci interface, described DSP, FPGA, pci interface are connected successively with described embedded industrial control computer, and described motion control card assigns on the PCI groove of described embedded industrial control computer inside;
Described embedded industrial control computer is connected by pci bus with described I/O interface board, described I/O interface board reads in limit switch signal, export the relay switching variable signal of gas ignition, thermal pretreatment, cutting torch lifting, steel plate perforation, arc voltage switch, described I/O interface board assigns on the PCI groove of described embedded industrial control computer inside;
Described embedded industrial control computer is connected with floppy disk by display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface with described man-machine communication's equipment, and described display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface and floppy disk are on the mainboard of described embedded industrial control computer;
Described numerical control administration module is arranged on embedded industrial control computer, Windows system platform realizes described motion control card, the pci bus driving of I/O interface board, the monitoring of I/O interface board and diagnosis, and the graphic user interface of digital control system, file management system and man-machine interaction;
Described I/O interface board accepts control command by pci bus from described embedded industrial control computer, then send these orders to described DSP by FPGA to perform, described DSP completes the interpolation described AC servo motor and drive unit thereof being comprised to straight line and circular arc line segment as motion control unit, multi-axial Simultaneous moves, speeds control, the pretreated output of line segment controls, data message in cutting process is fed back to described embedded industrial control computer by described I/O interface board by FPGA by described DSP simultaneously, realize the data double-way transmission of described embedded industrial control computer and motion control card.
The present invention is based on the control system of numerical control cutting machine of PCI+DSP+FPGA, wherein said embedded industrial control computer adopts model to be the industrial control computer of RPC-206, described DSP employing frequency of operation is the high-speed floating point type micro-chip processor of 100MHz, FPGA is the programmable logic device (PLD) of 20,000, and pci interface chip adopts model to be the chip of PCI9052.
The present invention is based on the control system of numerical control cutting machine of PCI+DSP+FPGA, wherein said I/O interface board adopts 32 tunnel input and output control cards, comprises 16 road input signal ports and 16 tunnels output signal port.
The advantage that the present invention is based on the control system of numerical control cutting machine of PCI+DSP+FPGA is: due to the embedded industrial control computer adopted, and realize pci bus under a windows environment and drive, pci bus transmission speed is fast, and stability is better.Motion control card is provided with DSP, FPGA and pci interface, DSP instruction execution speed is fast, the pulse maximum frequency that it sends can reach 250KHz, guarantee that cutting machine highest running speed can reach 15000mmpm, control accuracy can reach 8000 (pulse)/mm, realize efficient, high-precisionly carrying out motion control, real-time and be convenient to upgrading.FPGA not only can realize basic dual port RAM (data-carrier store) function, and is programmable, considerably increases the dirigibility that motion control card function controls.Numerical control administration module runs in Windows system, and its reliability, stability aspect are very suitable for severe production environment, and powerful, easy and simple to handle, and friendly interface meets the particular/special requirement of cutting technique well.
In a word, the motion control card of embedded industrial control computer, Based PC I+DSP+FPGA technology, I/O interface board, man-machine communication's equipment, optimal combination based on the numerical control administration module of windows platform, stability of control system is good and be not subject to the interference of industry spot interference source; Arithmetic capability is strong, and processing speed is fast; There is abundant interface and carry out communication by serial ports and remote computer; And structure is simple, each ingredient is relatively independent, and compared with existing control system, not only performance improves, cost reduces, and assembling, use, upgrading is very simple.
Be described in detail with reference to accompanying drawing below in conjunction with embodiment.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the control system of numerical control cutting machine that the present invention is based on PCI+DSP+FPGA;
Fig. 2 is the structured flowchart of motion control card.
Embodiment
As shown in Figure 1, the present invention is based on the control system of numerical control cutting machine of PCI+DSP+FPGA, comprise the relay of controlled cutter system, limit switch and AC servo motor and drive unit thereof, and embedded industrial control computer, motion control card, I/O interface board, man-machine communication's equipment and numerical control administration module.Wherein:
(1) embedded industrial control computer adopts an industrial special purpose computer, select North China industry control model RPC-2066-PCI groove industry special purpose computer, band display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface and floppy disk, also can adopt other model embedded industrial control computer of the above interface of band.
(2) as shown in Figure 2, motion control card comprises DSP, FPGA and pci interface, and DSP, FPGA, pci interface are connected successively with embedded industrial control computer, and motion control card assigns on the PCI groove of embedded industrial control computer inside.DSP employing frequency of operation is the high-speed floating point type micro-chip processor of 100MHz, and FPGA is the programmable logic device (PLD) of 20,000, and pci interface chip adopts model to be the chip of PCI9052.
(3) man-machine communication's equipment is made up of LCD/VGA display, industrial keyboard, USB flash disk, floppy disk etc., be connected with embedded industrial control computer by interfaces such as display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface and floppy disks, realize man-machine communication.Display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface and floppy disk are on the mainboard of embedded industrial control computer.
(4) I/O interface board is 32 tunnel input and output control cards, comprises 16 road input signal ports and 16 tunnels output signal port.I/O interface board reads in limit switch signal, and export the relay switching variable signal of gas ignition, thermal pretreatment, cutting torch lifting, steel plate perforation, arc voltage switch, I/O interface board assigns on the PCI groove of embedded industrial control computer inside.
(5) numerical control administration module is arranged on embedded industrial control computer, and Windows system platform works.
In the control system of numerical control cutting machine that the present invention is based on PCI+DSP+FPGA, embedded industrial control computer and AC servo motor and drive unit thereof form servo closed-loop system, and be connected by pci bus with motion control card, I/O interface board, be connected with floppy disk by display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface with man-machine communication's equipment.
Numerical control administration module is arranged on embedded industrial control computer, Windows system platform realizes motion control card, and the pci bus of I/O interface board drives, the monitoring of I/O interface and diagnosis, and the graphic user interface of digital control system, file management system and man-machine interaction.
I/O interface board accepts control command by pci bus from embedded industrial control computer, then send these orders to DSP by FPGA to perform, DSP completes interpolation AC servo motor and drive unit thereof being comprised to straight line and circular arc line segment as motion control unit, multi-axial Simultaneous moves, speeds control, the pretreated output of line segment controls, data message in cutting process is fed back to embedded industrial control computer by I/O interface board by FPGA by DSP simultaneously, realize the data double-way transmission of embedded industrial control computer and motion control card, reach the object of AC servo machinery driving control and data message Real-time Feedback.
The control system of numerical control cutting machine of invention Based PC I+DSP+FPGA operationally, the order that motion control card is sent by pci interface reception embedded industrial control computer, DSP inside realizes the preprocessing tasks of Electric Machine Control, then by interpolation operation, send pulse signal and control cutting machine by intended trajectory and speed operation.Meanwhile, DSP passes through pci interface real-time feedback data to embedded industrial control computer.
Embodiment recited above is only be described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design proposal prerequisite of the present invention; the various modification that in this area, common engineering technical personnel make technical scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (3)
1. the control system of numerical control cutting machine of a Based PC I+DSP+FPGA, comprise the relay of controlled cutter system, limit switch and AC servo motor and drive unit thereof, it is characterized in that, also comprise embedded industrial control computer, motion control card, I/O interface board, man-machine communication's equipment and numerical control administration module, wherein:
Described embedded industrial control computer and AC servo motor and drive unit thereof form servo closed-loop system, and be connected by pci bus with described motion control card, described motion control card comprises DSP, FPGA and pci interface, described DSP, FPGA, pci interface are connected successively with described embedded industrial control computer, and described motion control card assigns on the PCI groove of described embedded industrial control computer inside;
Described embedded industrial control computer is connected by pci bus with described I/O interface board, described I/O interface board reads in limit switch signal, export the relay switching variable signal of gas ignition, thermal pretreatment, cutting torch lifting, steel plate perforation, arc voltage switch, described I/O interface board assigns on the PCI groove of described embedded industrial control computer inside;
Described embedded industrial control computer is connected with floppy disk by display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface with described man-machine communication's equipment, and described display lcd/USB interface, flash disk USB interface, PS/2 keyboard interface and floppy disk are on the mainboard of described embedded industrial control computer;
Described numerical control administration module is arranged on embedded industrial control computer, Windows system platform realizes described motion control card, the pci bus driving of I/O interface board, the monitoring of I/O interface board and diagnosis, and the graphic user interface of digital control system, file management system and man-machine interaction;
Described I/O interface board accepts control command by pci bus from described embedded industrial control computer, then send these orders to described DSP by FPGA to perform, described DSP completes the interpolation described AC servo motor and drive unit thereof being comprised to straight line and circular arc line segment as motion control unit, multi-axial Simultaneous moves, speeds control, the pretreated output of line segment controls, data message in cutting process is fed back to described embedded industrial control computer by described I/O interface board by FPGA by described DSP simultaneously, realize the data double-way transmission of described embedded industrial control computer and motion control card.
2. the control system of numerical control cutting machine of Based PC I+DSP+FPGA according to claim 1, it is characterized in that, described embedded industrial control computer adopts model to be the industrial control computer of RPC-206, described DSP employing frequency of operation is the high-speed floating point type micro-chip processor of 100MHz, FPGA is the programmable logic device (PLD) of 20,000, and pci interface chip adopts model to be the chip of PCI9052.
3. the control system of numerical control cutting machine of Based PC I+DSP+FPGA according to claim 1 and 2, is characterized in that, described I/O interface board adopts 32 tunnel input and output control cards, comprises 16 road input signal ports and 16 tunnels output signal port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410663437.3A CN104375467A (en) | 2014-11-19 | 2014-11-19 | Numerical control cutting machine control system based on PCI+DSP+FPGA |
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| CN201410663437.3A CN104375467A (en) | 2014-11-19 | 2014-11-19 | Numerical control cutting machine control system based on PCI+DSP+FPGA |
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Cited By (4)
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| CN104918004A (en) * | 2015-04-08 | 2015-09-16 | 江西恒盛晶微技术有限公司 | PCI communication monitoring system based on FPGA and DSP chips |
| CN109144008A (en) * | 2018-09-15 | 2019-01-04 | 广东万盛兴智能技术研究院有限公司 | A kind of industrial control system |
| CN111722592A (en) * | 2020-07-07 | 2020-09-29 | 天津越华机械制造有限公司 | Motion control card device for flame cutting numerical control system |
| CN112129293A (en) * | 2020-09-11 | 2020-12-25 | 上海应用技术大学 | System and method for acquiring motion path data of multi-channel spinning wheel of spinning machine |
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2014
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104918004A (en) * | 2015-04-08 | 2015-09-16 | 江西恒盛晶微技术有限公司 | PCI communication monitoring system based on FPGA and DSP chips |
| CN104918004B (en) * | 2015-04-08 | 2018-08-24 | 江西率恩实业有限公司 | PCI communications monitor systems based on FPGA and dsp chip |
| CN109144008A (en) * | 2018-09-15 | 2019-01-04 | 广东万盛兴智能技术研究院有限公司 | A kind of industrial control system |
| CN111722592A (en) * | 2020-07-07 | 2020-09-29 | 天津越华机械制造有限公司 | Motion control card device for flame cutting numerical control system |
| CN112129293A (en) * | 2020-09-11 | 2020-12-25 | 上海应用技术大学 | System and method for acquiring motion path data of multi-channel spinning wheel of spinning machine |
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Application publication date: 20150225 |