CN109991924A - A kind of means of communication and system for digital control system Terminal Server Client real time monitoring - Google Patents
A kind of means of communication and system for digital control system Terminal Server Client real time monitoring Download PDFInfo
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- CN109991924A CN109991924A CN201711479008.0A CN201711479008A CN109991924A CN 109991924 A CN109991924 A CN 109991924A CN 201711479008 A CN201711479008 A CN 201711479008A CN 109991924 A CN109991924 A CN 109991924A
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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
- G05B19/406—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 characterised by monitoring or safety
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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
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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
- G05B2219/31151—Lan local area network
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention relates to a kind of digital control system means of communication for Terminal Server Client real time monitoring, method is DNC server module of the design and operation in digital control system, design the DNC client dispatch interface module run in Terminal Server Client, it cooperates with the task control module in digital control system, realizes that Terminal Server Client monitors operation control, execution status monitoring and the alarm condition of digital control system.The present invention has open remarkable advantage high, integration is high, independence is high.
Description
Technical field
The present invention relates to digital control system monitoring fields, specifically a kind of to supervise in real time for digital control system Terminal Server Client
The means of communication and system of control.
Background technique
In recent years, the equipment manufacturing industry development in China is rapid, and domestic digital control system is advanced from function, technique is comprehensive
Property etc. it is smaller and smaller with the gap of the international advanced digital control system brand such as Siemens, Fa Nake, but with information communication
The development of technology, automation and intelligent level to numerically controlled processing equipment propose new requirement, and Germany's " industry 4.0 " proposes,
By sufficiently merging for information network and industrial production system, digital plant is made, current industrial production management mode is changed.
" made in China 2025 " it is also proposed that, by turning to the intelligent Manufacturing Technology of representative, General Promotion with digitlization, networking, intelligence
The whole efficiency of Chinese manufacturing improves the core competitiveness of Chinese manufacturing.Therefore, traditional discrete type manual operation mode
The demand of intelligent plant is no longer satisfied, and supports long-range monitoring, workshop DNC network management is easy to implement, is increasingly becoming number
The important intelligent index of control system.But the diversity of digital control system type and the otherness of platform, make how to realize numerical control system
System remote real-time monitoring, which becomes, makes the important problem that digital plant must face.
Summary of the invention
Aiming at the defects existing in the prior art, the technical problem to be solved in the present invention is to provide one kind to be used for
The means of communication and system of digital control system Terminal Server Client real time monitoring.This method needs to realize the computer in a local area network
The machining state and alarm condition of digital control system are obtained in real time, and the control to digital control system is realized by remote operation.
Present invention technical solution used for the above purpose is: one kind is real-time for digital control system Terminal Server Client
The means of communication of monitoring, comprising the following steps:
Step 1: establishing Terminal Server Client, DNC client dispatch interface module, DNC server module, task control module
Between communication connection；
Step 2: Terminal Server Client sends control instruction, successively passes through DNC client dispatch interface module, DNC server
Module is used for the processing of digital control system to task control module；Task control module acquires the current execution state letter of digital control system
Breath and alarm serial number information, are successively used for by DNC server module, DNC client dispatch interface module to Terminal Server Client
Real-time remote monitoring.
The step 1 is that the connection of Terminal Server Client and DNC server module is established by being connected to the network function；The net
The function parameter of network contiguous function includes the IP address and network port number of target digital control system.
The communication connection shape of DNC client dispatch interface module real-time judge and DNC server module in the step 1
State guarantees the stability of Terminal Server Client real time monitoring.
When the DNC server module be it is multiple when, DNC client dispatch interface module be by different communication ids come
Different DNC server modules is distinguished, realizes a Terminal Server Client to the real time monitoring of more digital control systems.
The step 2 includes:
Step 2.1:DNC client dispatch interface module uses the dynamic link of the .dll format based on Windows environment
The interface function mode of library mechanism collects the control instruction that Terminal Server Client issues and is sent to DNC server module；
Step 2.2:DNC server module creates command channel and receives control instruction, and is transmitted to task control module use
It is processed in digital control system；
Step 2.3: task control module acquires the current execution state information of digital control system and alarm serial number information is sent
Give DNC server module；
The server module creation state channel step 2.4:DNC and the current execution state of channel reception digital control system of alarming
Information and alarm serial number information, and it is transmitted to DNC client dispatch interface module；
Step 2.5:DNC client dispatch interface module execution state information and alarm that received digital control system is current
Serial number information is reported to Terminal Server Client.
The creation of the command channel, stator channel and channel of alarming is using the NML channel mechanism based on the library RCS.
The control instruction of collection Terminal Server Client sending in the step 2.1 is simultaneously sent to DNC server module, is logical
It crosses DNC client dispatch interface module and the conclusion of all control instructions is encapsulated as an order class formation, the order class formation
In include command sequence number and relevant parameter；
DNC server module creation command channel receives control instruction in the step 2.2, is by reading order class knot
Command sequence number and relevant parameter in structure parse and execute corresponding operation order.
A kind of communication system for digital control system Terminal Server Client real time monitoring, comprising:
DNC client dispatch interface module connects Terminal Server Client, DNC server module, collects Terminal Server Client and issues
Control instruction and be sent to DNC server module, obtain the current execution state information of digital control system from DNC server module
It is read with alarm serial number information for Terminal Server Client；
Several DNC server modules, each DNC server module be all connected with DNC client dispatch interface module,
Respective task control module receives control instruction and is sent to respective task control module, from respective task control mould
Block obtains the current execution state information of digital control system and alarm serial number information is sent to DNC client dispatch interface module；
Several task control modules read and execute the control command that its corresponding DNC server module is sent and are used for
The processing of digital control system, the current execution state information of acquisition digital control system and alarm serial number information are sent to corresponding DNC clothes
Business device module.
A text file, the text files memory NML channel are stored in the DNC client dispatch interface module
All configuration informations, the configuration information include establish channel name, each communication buffer area title, communication buffer area size
Permission, mode with access buffer area.
The DNC server module and DNC client dispatch interface module open up consistent data buffer zone, by real-time
The reading of numerical control system running status is realized in flush buffers；
The DNC client dispatch interface module is stored with alarm configuration file in inside, and the alarm configuration file is deposited
All alarm serial number informations of digital control system and corresponding warning message are stored up, the alarm serial number sent according to DNC server module
Information searches for corresponding warning message, the reading of Lai Shixian digital control system warning message in alarm configuration file.
The invention has the following beneficial effects and advantage:
1. open high: all machining states and alarm condition of digital control system can be encapsulated into status channel and alarm
Channel, all remote operation orders can be encapsulated into command channel, and monitoring range is wide.
2. integration is high: can be achieved to monitor more digital control systems in real time by a computer, convenient for unified pipe
Reason.
3. independence is high: except status channel, alarm channel and command channel independence and digital control system Internal control structure,
It will not interfere with digital control system internal schedule management, also do not influenced by digital control system version change..
Detailed description of the invention
Fig. 1 is the software architecture diagram of digital control system of the invention；
Fig. 2 is the flow chart of the long-range monitoring and scheduling of the method for the present invention；
Fig. 3 is the deployment diagram of long-range monitor client and digital control system of the invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments.
Referring to Fig. 1, cnc system software uses Modular Structure Design, and Internal control structure is mainly by four part groups
At that is, man machine operation interface (HMI), task control module, motion-control module and PLC are formed.Wherein motion-control module and
Requirement of the PLC to the response time is very high, therefore handles generally as real-time task, and task control module and man machine operation interface
It is of less demanding to the response time, it can be run as un-real time job.Each functions of modules is as follows:
Man machine operation interface (HMI) is responsible for reading the operational order of user, such as operates to the management of processing program, processing
Input and modification operation of auxiliary information etc., in addition, man machine operation interface is also responsible for showing current system running state information
Show on the screen, such as cutter mobile trace image, each axis Working position information, processing auxiliary information and system are current
Alarm condition etc..
Task control module is the hinge of application of numeric control layer software, it parses processing program information by decoding module,
It is broken down into the operation to motion-control module and PLC, and monitors them and completes corresponding operation, finally from motion control mould
Block and PLC obtain current machining state information and alarm serial number information, and the progress of man machine operation interface module is sent to after processing
Display.In addition, task control module also completes the initialization to system software by management program, in scheduling and coordination software
Each task, supervisor bed operating state and machining state etc..
Motion-control module plans the motion track of each axis by calling interpolation algorithm, carries out electricity by PID adjusting
Machine position control, according to speed, feed rate mode, terminal stop mode and the plus-minus set in work procedure or configuration parameter
Fast mode etc. carries out each axis running speed and Acceleration Control etc..It is mended in addition, motion-control module also passes through the cutter configured
It repays information, pitch compensation information and backlash Compensation of Half information etc. each shaft position is adjusted, to meet the precision of processing
It is required that.
Programmable logic controller (PLC) (PLC) can be divided into logical file editor module and execution module two parts, editor module
It is responsible for the ladder diagram editor and compilation operations of processing user, execution module is mainly opened with each stroke on digital control system inside and lathe
The state of the semaphores such as pass, sensor, button, relay is condition, according to the logical file that compiling generates, to such as axis servomotor
Firmly limit, return to zero switch, the start and stop of main shaft and commutation, the replacement of cutter, the clamping of workpiece and release, is hydraulic, cooling, lubricate
The electric switches such as system are controlled.
In order to realize the communication of digital control system and Terminal Server Client, on the basis of original digital control system Internal control structure
On, using C/S (Client/Server) mode, the NML provided based on the library RCS (Neutral Message Language, in
Property message language) communication mechanism, design the DNC server module that runs in digital control system and devise state in the module
Channel dncStatusChannel, command channel dncCommandChannel, false alarm channel dncErrorChannel, point
It Shi Xian not be to the long-range control of digital control system, state acquisition, alarm monitoring.Match confidence by the way that a text files memory is all
Breath, channel name, each communication buffer area title, permission, the mode of communication buffer area size and access buffer area including foundation
Deng.
The dynamic link library mechanism of .dll format based on Windows environment designs the DNC visitor run in Terminal Server Client
Family end dispatch interface module establishes the communication with DNC server module by interface function mode, realizes remote control command
Transmission and execution state information and warning message acquisition.
When establishing connection, network connection function is passed to the IP address and the network port of goal systems by function parameter
Number, the connection at client and server end is established with this, and distribute the ID of a corresponding goal systems automatically, as same with other
When the mark mutually distinguished of the digital control system that connects, a series of policer operations after connection are all based on this ID.
For the transmission for realizing control command, the conclusion of all control commands is encapsulated as one by DNC client dispatch interface module
A order class formation, definition command serial number in class as distinguishing the mark of different control commands, and define multiple class members and become
Amount, for storing the relevant parameter of control command, DNC server module reading order serial number and relevant parameter, to parse and hold
Row corresponding operation order.
For the reading for realizing status data, DNC server module and DNC client dispatch interface module open up consistent number
According to buffer area, when reading some status data every time, status data is integrally flushed in buffer area by stator channel first,
Corresponding inquiry is carried out further according to the number of state indexes that function reading is passed to.
For the reading for realizing warning message, the alarm serial number information of current system is sent to DNC visitor by DNC server module
Family end dispatch interface module, DNC client dispatch interface module search for phase in alarm configuration file according to alarm serial number information
Warning message is answered, and is supplied to Terminal Server Client with character string forms.
For the stability for guaranteeing Terminal Server Client real time monitoring, DNC client dispatch interface module real-time judge and DNC are taken
The communication connection state for device module of being engaged in re-establishes the connection with DNC server module when discovery connection disconnects automatically.Ginseng
See Fig. 2.
To realize that a Terminal Server Client monitors more digital control systems in real time, DNC client dispatch interface module
Connection often is established with a DNC server module, the independent communication id of just distribute and independent NML channel.DNC
Client dispatch interface module distinguishes different DNC server modules by different communication ids, and manages corresponding NML letter
Road, to realize one-to-many telecommunication management.Referring to Fig. 3.
In order to test actual motion effect and performance of the invention, SSB-III (Synchronous-Serial-Bus,
Synchronous serial bus) servo motor operation using the present invention and is actually driven in GJ301 digital control system.Terminal Server Client connects simultaneously
Two digital control systems are connect, Terminal Server Client can successfully realize control respectively to two digital control systems and execute shape after tested
The reading respectively of state information and alarm, i.e., one-to-many remote monitoring function.
Claims (10)
1. a kind of means of communication for digital control system Terminal Server Client real time monitoring, which comprises the following steps:
Step 1: establish Terminal Server Client, DNC client dispatch interface module, DNC server module, between task control module
Communication connection；
Step 2: Terminal Server Client sends control instruction, successively passes through DNC client dispatch interface module, DNC server module
The processing of digital control system is used for task control module；Task control module acquire the current execution state information of digital control system and
Alarm serial number information, successively by DNC server module, DNC client dispatch interface module to Terminal Server Client for real-time
Long-range monitoring.
2. a kind of means of communication for digital control system Terminal Server Client real time monitoring described in accordance with the claim 1, feature
It is, the step 1 is that the connection of Terminal Server Client and DNC server module is established by being connected to the network function；The network
The function parameter of contiguous function includes the IP address and network port number of target digital control system.
3. special according to a kind of means of communication for digital control system Terminal Server Client real time monitoring described in claim 1,2
Sign is, the communication connection state of DNC client dispatch interface module real-time judge and DNC server module in the step 1,
Guarantee the stability of Terminal Server Client real time monitoring.
4. a kind of means of communication for digital control system Terminal Server Client real time monitoring described in accordance with the claim 1, feature
It is, when the DNC server module is multiple, DNC client dispatch interface module is by different communication ids come area
Divide different DNC server modules, realizes a Terminal Server Client to the real time monitoring of more digital control systems.
5. a kind of means of communication for digital control system Terminal Server Client real time monitoring described in accordance with the claim 1, feature
It is, the step 2 includes:
Step 2.1:DNC client dispatch interface module uses the dynamic link library machine of the .dll format based on Windows environment
The interface function mode of system collects the control instruction that Terminal Server Client issues and is sent to DNC server module；
Step 2.2:DNC server module creates command channel and receives control instruction, and is transmitted to task control module for counting
The processing of control system；
Step 2.3: the current execution state information of task control module acquisition digital control system and alarm serial number information are sent to DNC
Server module；
The server module creation state channel step 2.4:DNC and the current execution state information of channel reception digital control system of alarming
With alarm serial number information, and it is transmitted to DNC client dispatch interface module；
Step 2.5:DNC client dispatch interface module by the current execution state information of received digital control system and alarm serial number
Information reporting is to Terminal Server Client.
6. a kind of means of communication for digital control system Terminal Server Client real time monitoring according to claim 5, feature
It is, the creation of the command channel, stator channel and channel of alarming is using the NML channel mechanism based on the library RCS.
7. a kind of means of communication for digital control system Terminal Server Client real time monitoring according to claim 5, feature
It is,
The control instruction of collection Terminal Server Client sending in the step 2.1 is simultaneously sent to DNC server module, is to pass through
All control instructions are concluded and are encapsulated as an order class formation by DNC client dispatch interface module, in the order class formation
Including command sequence number and relevant parameter；
DNC server module creation command channel receives control instruction in the step 2.2, is by reading order class formation
Command sequence number and relevant parameter parse and execute corresponding operation order.
8. a kind of communication system for digital control system Terminal Server Client real time monitoring characterized by comprising
DNC client dispatch interface module connects Terminal Server Client, DNC server module, collects the control that Terminal Server Client issues
System instructs and is sent to DNC server module, obtains the current execution state information and report of digital control system from DNC server module
Alert serial number information is read for Terminal Server Client；
Several DNC server modules, each DNC server module be all connected with DNC client dispatch interface module, respectively
Task control module, receive control instruction simultaneously be sent to respective task control module, obtained from respective task control module
The execution state information and alarm serial number information for taking digital control system current are sent to DNC client dispatch interface module；
Several task control modules read and execute the control command that its corresponding DNC server module is sent and are used for numerical control
The processing of system, the current execution state information of acquisition digital control system and alarm serial number information are sent to corresponding DNC server
Module.
9. a kind of communication system for digital control system Terminal Server Client real time monitoring according to claim 8, feature
It is, a text file is stored in the DNC client dispatch interface module, the text files memory NML channel
All configuration informations, the configuration information include establish channel name, each communication buffer area title, communication buffer area size and
Permission, the mode in access buffer area.
10. a kind of communication system for digital control system Terminal Server Client real time monitoring according to claim 8, feature
It is, the DNC server module and DNC client dispatch interface module open up consistent data buffer zone, by brushing in real time
The reading of numerical control system running status is realized in new buffer area；
The DNC client dispatch interface module is stored with alarm configuration file in inside, and the alarm configuration file stores number
All alarm serial number informations of control system and corresponding warning message, according to DNC server module send alarm serial number information,
Corresponding warning message, the reading of Lai Shixian digital control system warning message are searched in alarm configuration file.
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| CN111443659A (en) * | 2020-06-02 | 2020-07-24 | 湖北理工学院 | Remote monitoring control system for numerical control machine tool |
| CN111796569A (en) * | 2020-07-07 | 2020-10-20 | 深圳市蓝蓝软件有限公司 | Method and device for communication between machine tool and external equipment and industrial personal computer |
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