CN108037736A - A kind of split type digital control system based on wireless telecommunications - Google Patents
A kind of split type digital control system based on wireless telecommunications Download PDFInfo
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- CN108037736A CN108037736A CN201711319459.8A CN201711319459A CN108037736A CN 108037736 A CN108037736 A CN 108037736A CN 201711319459 A CN201711319459 A CN 201711319459A CN 108037736 A CN108037736 A CN 108037736A
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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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- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31088—Network communication between supervisor and cell, machine group
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31105—Remote control of network controller
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Abstract
The present invention provides a kind of split type digital control system based on wireless telecommunications, belong to fields of numeric control technique, including the digital control system control terminal using movable termination and the Network CNC actuating station using numerical control network execution unit, both are mutually communicated by wireless communication interface；Digital control system control terminal is included mainly by interface display module and the Non real-time processing unit of code compilation module composition, and serial line interface, display screen, the I/O device being connected respectively with the Non real-time processing unit, the Non real-time processing for human-computer interaction；Network CNC actuating station includes the real-time processing unit being made of real-time interpolation module, motion-control module and programmable logic controller (PLC) PLC module, and servo interface, main shaft interface, handwheel interface, the Machine Tool Electric Appliance I/O interface being connected respectively with the real-time processing unit, the real-time processing for the split type digital control system.The present invention is easy to implement the remote control of digital control system, networking clustered control and Development of Modular.
Description
Technical field
The invention belongs to fields of numeric control technique, more specifically to a kind of split type numerical control system based on wireless telecommunications
System.
Background technology
The structure of existing digital control system (CNC) can be summarized as shown in Fig. 1, and digital control system is as independent system, including master
Will be by the Non real-time processing unit of interface display module and code compilation module composition and by real-time interpolation module, motion control
The real-time processing unit that module and PLC module are formed；Digital control system passes through its dedicated interface and corresponding human-computer interaction periphery
Equipment or the connection of Machine Tool Electric Appliance equipment；Wherein, the Non real-time processing unit of digital control system is (including aobvious by human-computer interaction side interface
Show interface, keyboard interface and USB interface) and human-computer interaction periphery (including display, editor and operation keyboard and U
The serial devices such as disk) it is connected；The real-time processing unit of digital control system body passes through Machine Tool Electric Appliance side interface (servo interface, main shaft
Interface, handwheel interface and I/O interface) with Machine Tool Electric Appliance equipment (including lathe servomotor, machine tool chief axis, electronic hand wheel and
Lathe IO etc.) it is connected；Real-time unit is connected with non real-time unit, realizes that variable is shared and information mutual communication.
At present between the Machine Tool Electric Appliance part outside digital control system and digital control system by the way of inherently connecting, Wu Fashi
The function of now flexibly moving.Since digital control system is typically mounted on outside lathe, machine operation personnel will complete to lathe at the same time
The adjustment that the internal adjustment of processing part and the digital control system outside lathe is set, machine operation personnel will travel to and fro between
Process between part and digital control system, and its it is not convenient.Although occur such as Chinese patent CN201520527306.2 (applications
Number) disclosed in the remote control module such as wireless handwheel control module, numerical control machine disclosed in Chinese patent CN201621311698.X
Bed wireless control system etc., what this kind of patent was protected is only a kind of wireless control terminal for the movement for controlling machine spindle, is not had
Have and the structure of digital control system is improved, therefore the functions such as the parameter adjustment of digital control system can not be completed based on such scheme, but
The appearance of such patent confirms the demand of remote wireless control lathe.And for example Chinese patent CN200710053658.9, it is open
A kind of digital control system of distributed type open system structure, this patent architecturally by digital control system be divided into host computer and under
Position machine, is easy to implement the separation of software and hardware of human-computer interaction periphery and Machine Tool Electric Appliance, but its essence is still fallen within based on fixed
The digital control system of PC, and host computer needs numerous ancillary equipment, can not realize moveable characteristic.
Further, since the arrival in industrial 4.0 epoch, the Industrial Ethernet based on IEEE 802.3 (Ethernet) gradually into
Enter the application stage, for Industrial Ethernet usually using the field bus protocol of standard, which mainly solves the intelligence of industry spot
Change the digital communication and these field control equipment and advanced control between the field devices such as instrument and meter, controller, executing agency
Information problem of transmission between system processed, the Modbus agreements of such as standard.Industrial Ethernet can be widely applied to the life of factory
Produce project management system, production scheduling command system, the office automation system, financial management system, material Management System and set
In standby management system.
Current common mobile devices are such as：Tablet computer, mobile phone, notebook etc., this kind equipment have moveable characteristic.
Its own is with such as display screen, keyboard or touch-screen, USB interface, Ethernet or wave point etc..Compact is light at the same time
Just, convenient realize of these features is used as wireless long-range control terminal, such as one disclosed in Chinese patent CN201520734000.4
Kind is based on tablet computer Windows system wireless tele-control systems etc..But the system run in general mobile terminal belongs to
Non real-time system, and the control of digital control system needs highly reliable real-time system to complete, so can not be directly by general shifting
Dynamic equipment is used for numerical control field.
The content of the invention
The purpose of the invention is to overcome the shortcoming of prior art, there is provided a kind of based on the split type of wireless telecommunications
The function such as digital control system, wireless control, remote control and the clustered control of the achievable digital control system of the present invention, facilitates machine operation
Personnel's using and operating.
The present invention uses following technical scheme：
A kind of split type digital control system based on wireless telecommunications, it is characterised in that including：
Digital control system control terminal, using movable termination, including mainly by interface display module and code compilation module structure
Into Non real-time processing unit, and the display screen that is connected respectively with the Non real-time processing unit, I/O device, wireless telecommunications connect
Mouth and serial line interface；
Network CNC actuating station, using numerical control network execution unit, including by real-time interpolation module, motion-control module and
The real-time processing unit that programmable logic controller (PLC) PLC module is formed, and be connected respectively with the real-time processing unit wireless
Communication interface, servo interface, main shaft interface, handwheel interface, Machine Tool Electric Appliance I/O interface；
The digital control system control terminal and Network CNC actuating station, are mutually communicated by respective wireless communication interface；Institute
Display screen, I/O device, wireless communication interface and the serial line interface for stating digital control system control terminal are used for the non real-time place of human-computer interaction
Reason；The servo interface of the numerical control network execution unit, main shaft interface, handwheel interface, Machine Tool Electric Appliance I/O interface respectively with number
The electrical equipment of control lathe is connected, the real-time processing for the split type digital control system.
The features of the present invention：
The present invention splits the Non real-time processing of digital control system and real-time process part, and Non real-time processing part is used pen
Remember that the movable terminations such as sheet, tablet computer, mobile phone replace, as digital control system control terminal；Real-time process part uses network number
Control actuating station to realize, the present invention has the characteristics that following：
1st, realize digital control system edit operation part and process the software of executable portion, wherein hardware separation, edit operation
Part operates in non real-time digital control system control terminal, and processing executable portion operates in real-time Network CNC actuating station.
2nd, cut the human-computer interaction interface part of traditional numeric-control system, be changed to split structure, human-computer interaction part and
Non real-time processing part is replaced using moveable digital control system control terminal.
3rd, the software module inside digital control system has been split.The system run in general mobile terminal belongs to non real-time system
System, the software transplanting of the invention by non-real time portions to general mobile terminal, with reference to the characteristics of mobile equipment, it is removable to play its
Dynamic convenience.By real-time control section individual packages into Network CNC actuating station.
Beneficial effects of the present invention：
1st, based on this kind of architecture, the control terminal of digital control system is moved, improves the convenience of machine operation.
2nd, based on this kind of architecture, it can be achieved that the function such as wireless control, remote control and clustered control of digital control system；
3rd, based on this kind of architecture, the dedicated hardware configuration of digital control system is simplified, reduces the manufacture of controller
Cost, digital control system control terminal are separated with Network CNC actuating station, are improved bottom and are controlled the stabilization for performing continuous work in real time
Property.
4th, simplify the complexity of system, facilitate the Development of Modular of digital control system, the opening for the digital control system that maximizes.
Brief description of the drawings
Fig. 1 is the structure of traditional numeric-control system and its topological relation figure being connected with external equipment.
Fig. 2 is the overall structure diagram of digital control system of the present invention.
Fig. 3 is the structure diagram of Network CNC actuating station in digital control system of the present invention.
Embodiment
A kind of split type digital control system combination accompanying drawings and embodiments based on wireless telecommunications that the present invention designs are further
It is described as follows：
The overall structure of split type digital control system proposed by the present invention based on wireless telecommunications as shown in Fig. 2, including：
Digital control system control terminal, using movable termination, including mainly by interface display module and code compilation module structure
Into Non real-time processing unit, and display screen, I/O device (such as keyboard or touch being connected respectively with the Non real-time processing unit
Screen), wireless communication interface and serial line interface (such as USB interface)；
Network CNC actuating station, using numerical control network execution unit (Numerical Network Control, NNC), bag
Include by the real-time processing unit of real-time interpolation module, motion-control module and PLC (programmable logic controller (PLC)) module composition, with
And wireless communication interface, servo interface, main shaft interface, handwheel interface, the Machine Tool Electric Appliance being connected respectively with the real-time processing unit
I/O interface；
Wherein, digital control system control terminal and Network CNC actuating station, are mutually communicated by respective wireless communication interface；Number
Display screen, I/O device, wireless communication interface and serial line interface of control system control terminal etc. are used for the Non real-time processing of digital control system；
Servo interface, main shaft interface, handwheel interface, Machine Tool Electric Appliance IO (input and output) interface point of the numerical control network execution unit
It is not connected with the electrical equipment of numerically-controlled machine tool, the real-time processing for this split type digital control system.
The implementation and function of each synthesizer part of the present embodiment are respectively described below：
1) digital control system control terminal
Using general mobile equipment as carrier, such as tablet computer, mobile phone, notebook, the real-time processing unit in it
Equipped with lower module：
Interface display module：For the state in the storage management of nc program, edit-modify, all process
It has been shown that, the display of system alarm and record, the display of systematic parameter, editor and storage, the edit and storage of the trapezoidal map files of PLC
Deng.The module is connected with I/O device, completes to input operating personnel the acquisition of information；It is connected with display screen, completes display function；
It is connected with serial line interface etc., completes the interactive function of data；It is connected with code compilation module, completes machining code and and compiling number
According to data interaction part；It is connected with wireless communication interface, completes the data interaction with NNC (Network CNC actuating station).The mould
Block can use existing application interface development software such as QT etc. to realize, in its structure and development process and traditional numeric-control system
Interface display module is identical.
Code compilation module：For being responsible for the inspection and compiling of nc program, and provide the movement after compiling
Instruct (compiling result data), it also completes the code precompile function of graphical simulation function.The module and interface display mould
Block is connected, and completes machining code and the data interaction part with compiling data；It is connected with wireless communication interface, completes compiling number
According to the data interaction with NNC (Network CNC actuating station).The module is identical with the collector in traditional numeric-control system.
Modules in digital control system control terminal in real-time processing unit are put down using the software development of general mobile terminal
Platform, such as：Windows platform, linux platforms, Android platform and ios platform are realized.The interface of digital control system control terminal is
The interface that general mobile terminal itself possesses, without individually being customized for digital control system.
2) Network CNC actuating station
It is equipped with real-time processing unit with lower module：
Real-time interpolation module：For the control core of digital control system, for being responsible for the movement instruction after by compiling according to inserting
Mend algorithm and carry out computing, complete the real-time interpolation control of digital control system, its core is the Real-time interpolation algorithm of Various Complex.Should
Module is identical with the real-time interpolation module in traditional numeric-control system.The module is connected with wireless communication interface, completes and numerical control system
System control end data reception and on give；The module is connected with fortune control control module, completes the data transfer of interpolation output data.
Motion-control module：Motion-control module is mainly completed the data after interpolation being output to servo interface, and strictly
The movement instruction after compiling is sent to lathe servomotor according to interpolation cycle.The module and servo interface, main shaft interface, hand
Wheel interface is connected, and completes the control function to each interface.The module is identical with the motion-control module in traditional numeric-control system.
PLC module：The module is mainly responsible for the control of logical relation in digital control system, realizes to digital control system control terminal institute
The PLC ladder diagrams of loading carry out following real-time operation：The state of Machine Tool Electric Appliance input and output etc. is read and controlled.The module with
Machine Tool Electric Appliance input/output interface is connected.The module is realized using common software PLC.
Hardware plan is embodied in Network CNC actuating station：
Network CNC actuating station mainly complete in real time calculate and hardware interface control, its hardware configuration as shown in figure 3, including
One circuit board, it is fixed in electric device control cabinet for lathe, on the board equipped with logic processor (FPGA processor), computing
Processor (DSP/ARM processors), Flash memory chip, DDR memory chips, wireless module and multiple interfaces；Wherein, DSP/
Arm processor is connected by the wireless module for communication with wireless communication interface respectively, the wireless communication interface (the present embodiment
Using WIFI interface, other wireless communication interfaces can be also used, such as 4G network interfaces) it is hard with the communication of digital control system control terminal
Part interface；DSP/ARM processors also respectively with for providing the Flash memory chip of store function and for providing running memory
DDR memory chips be connected；DSP/ARM processors mainly complete real-time interpolation module and PLC module in real-time processing unit
Process flow operation and calculating process；FPGA processor connects with servo interface, main shaft interface, handwheel respectively by general conversion circuit
Mouth is connected with Machine Tool Electric Appliance I/O interface, realizes the driving and control to Peripheral Interface；FPGA processor completes real-time processing unit
State (input and output) control function of the real time data transmission of middle fortune control control module, the Machine Tool Electric Appliance IO of PLC module etc.；
Connected between DSP/ARM processors and FPGA processor using high speed bus interface (such as EMIFA interfaces), to meet information mutual communication
Demand.
To sum up, Network CNC actuating station uses arithmetic processor and logic processor bi-processor architecture, wherein meter in real time
Calculate part to operate in arithmetic processor (DSP/ARM processors), hardware interface control section operates in logic processor (FPGA
Processor) in.Scheme listed by Fig. 3 is only one of embodiment, is not limited to characteristic chip species and chip model.
3) embodiment is communicated
What the present invention used is wirelessly transferred including WIFI, 4G network etc..Be wirelessly transferred WIFI usually using 2.4G UHF or
The characteristics of 5G SHF ISM radio frequency bands, wireless transmission method have without connecting up, wide coverage, it is preferred to use 802.11ac
The wireless connection transmission speed of standard is up to 1Gbps, the content per second that can transmit about 125MB.
The present embodiment uses the radio-link protocol of highest 802.11ac standards, and the communications protocol of backward compatible low speed.
It see the table below by the title of the communication data involved by WIFI communication, data type, data transfer direction and communication cycle：
| Title | Type | Direction | Cycle |
| Coordinate information | Structure | Upload | 10ms |
| Tool-information | Structure | Upload | 100ms |
| PLC information | Register table | It is two-way | 100ms |
| Control instruction | Instruction catalogue | Issue | 10ms |
| Compiler Structure body | Structure | Issue | 10ms |
| Running state information | Register table | Upload | 20ms |
| Warning message | Register table | Upload | 20ms |
| Key information | Register table | Issue | 10ms |
| System parameter message | File | Under pass | On demand |
| Offline processed file | File | Under pass | On demand |
| Machined parameters information | File | Under pass | On demand |
Wherein,
Data transfer direction is defined as：It is lower pass-be transmitted to Network CNC actuating station from digital control system control terminal, upload-from
Network CNC actuating station is transmitted to digital control system control terminal；
Transmission cycle：The data communication cycle of different groups is different, such as to refreshing the coordinate information of high requirement in real time
Register, the transmission of one group of data is completed at interval of 10ms；And to the relatively low data of requirement of real-time such as tool-information, then often
It is spaced 100ms and completes a data transfer." on demand " cycle is then that user triggers specific function and just carries out data transmission, such as
User performs the action of download parameters, then passes the action of systems parameters document down and can perform once, be not to this under normal circumstances
Data are transmitted.
Therefore, the function such as wireless control, remote control and clustered control of the achievable digital control system of the present invention, facilitates lathe
Operating personnel's using and operating.
In addition, wire communication is can also be applied to based on the split type digital control system of wireless telecommunications, at this time, using Ethernet
Interface replaces wireless communication interface, and lays corresponding standard RJ45 twisted-pair feeders or optical fiber.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (3)
- A kind of 1. split type digital control system based on wireless telecommunications, it is characterised in that including：Digital control system control terminal, using movable termination, including mainly by interface display module and code compilation module composition Non real-time processing unit, and be connected respectively with the Non real-time processing unit display screen, I/O device, wireless communication interface and Serial line interface；Network CNC actuating station, using numerical control network execution unit, including by real-time interpolation module, motion-control module and can compile The real-time processing unit that journey logic controller PLC module is formed, and the wireless telecommunications being connected respectively with the real-time processing unit Interface, servo interface, main shaft interface, handwheel interface, Machine Tool Electric Appliance I/O interface；The digital control system control terminal and Network CNC actuating station, are mutually communicated by respective wireless communication interface；The number Display screen, I/O device, wireless communication interface and the serial line interface of control system control terminal are used for the Non real-time processing of human-computer interaction；Institute State the servo interface of numerical control network execution unit, main shaft interface, handwheel interface, Machine Tool Electric Appliance I/O interface respectively with numerically-controlled machine tool Electrical equipment be connected, the real-time processing for the split type digital control system.
- 2. split type digital control system according to claim 1, it is characterised in that in the processing unit in real time：The interface display module, for the state in the storage management of nc program, edit-modify, all process It has been shown that, the display of system alarm and record, the display of systematic parameter, editor and storage, the edit and storage of the trapezoidal map files of PLC；The code compilation module, for being responsible for the inspection and compiling of nc program, and provides the movement after compiling Instruction, is also used for the code precompile of graphical simulation.
- 3. split type digital control system according to claim 1, it is characterised in that in the processing unit in real time：The real-time interpolation module, carries out computing according to interpolation algorithm for being responsible for the movement instruction after by compiling, completes number The real-time interpolation control of control system；The motion-control module, for the data after interpolation to be output to servo interface, and will compile in strict accordance with interpolation cycle Movement instruction after translating is sent to lathe servomotor；PLC module, for the control of logical relation in the split type digital control system, is realized to the digital control system control terminal institute The PLC ladder diagrams of loading carry out following real-time operation：The state of Hardware I/O is read and controlled.
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Cited By (5)
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| CN109085794A (en) * | 2018-09-14 | 2018-12-25 | 安徽创弘精密机械有限公司 | A kind of Control System of NC Machine |
| CN109194838A (en) * | 2018-10-15 | 2019-01-11 | 珠海格力智能装备有限公司 | The control method and device of lathe |
| CN110794770A (en) * | 2019-11-26 | 2020-02-14 | 刘文芳 | Remote-controlled three-axis linkage economical numerical control system |
| CN112346405A (en) * | 2020-10-13 | 2021-02-09 | 深圳市汇川技术股份有限公司 | Numerical control system control method, device, numerical control system and computer storage medium |
| CN113848810A (en) * | 2021-08-27 | 2021-12-28 | 深圳市铭科智控研发有限公司 | Industrial motion control system based on mobile phone editing and processing instruction |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085794A (en) * | 2018-09-14 | 2018-12-25 | 安徽创弘精密机械有限公司 | A kind of Control System of NC Machine |
| CN109194838A (en) * | 2018-10-15 | 2019-01-11 | 珠海格力智能装备有限公司 | The control method and device of lathe |
| CN110794770A (en) * | 2019-11-26 | 2020-02-14 | 刘文芳 | Remote-controlled three-axis linkage economical numerical control system |
| CN112346405A (en) * | 2020-10-13 | 2021-02-09 | 深圳市汇川技术股份有限公司 | Numerical control system control method, device, numerical control system and computer storage medium |
| CN113848810A (en) * | 2021-08-27 | 2021-12-28 | 深圳市铭科智控研发有限公司 | Industrial motion control system based on mobile phone editing and processing instruction |
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