CN106123943B - A kind of flexible on-line detecting system based on Industrial Ethernet - Google Patents
A kind of flexible on-line detecting system based on Industrial Ethernet Download PDFInfo
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- CN106123943B CN106123943B CN201610555781.XA CN201610555781A CN106123943B CN 106123943 B CN106123943 B CN 106123943B CN 201610555781 A CN201610555781 A CN 201610555781A CN 106123943 B CN106123943 B CN 106123943B
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Abstract
The invention discloses a kind of flexible on-line detecting system based on Industrial Ethernet, including signal acquisition component, controller, Industrial PC host and the computing unit being distributed in Industrial Ethernet, wherein signal acquisition component includes digital camera, sensor, Industrial PC host completes the acquisition of image and the human-computer interaction interface of image processing tasks and operating system；Controller completes detected material tracking in the production line, control digital camera takes pictures, sensor acquisition data and to detected material it is last execute movement.A client application is run on each computing unit, the service routine and Industrial PC host communication, execute the automatic release tasks of system, and the present invention has very high flexibility, configurability and scalability can be applied on automatic production line in almost all of on-line checking module.By the way that system modular software configuration may be implemented to different specific Detection tasks, research and development cost and the development cycle of new product are substantially reduced.
Description
Technical field
The present invention relates to industrial detection technology, in particular to a kind of flexible on-line detecting system based on Industrial Ethernet.
Background technique
Also there are many applications using more and more extensively in automated production based on the online measuring technique of machine vision
In the dedicated on-line detecting system of specific industry and application.Detection system generally requires to be selected according to specific Detection task dedicated
Hardware and work out dedicated software.Since the demand on automatic production line is more diversified, turn of the market is also very fast, institute
It is relatively high with the flexibility requirements to detection module and equipment.And traditional system structure compares solidification, the configuration of software and hardware
Property it is poor, so the research and development of new equipment are at high cost, the R&D cycle is long, slow to the reaction in market.The system maintenance in later period and
What is upgraded is relatively difficult.Automatic production line is exactly that speed develops towards high speed direction there are one trend, and to product
Quality and it is multifarious require higher and higher, that is, the detection project needed also gradually increasing.Therefore to on-line checking system
The processing capacity of system and flexibility have higher requirement.
Summary of the invention
Object of the present invention is to: a kind of flexible on-line detecting system based on Industrial Ethernet is provided, which has very high
Flexibility, configurability and scalability can be applied on automatic production line in almost all of on-line checking module.Benefit
It can be not fixed specific detection application in advance with the system, and it is different by the way that system modular software configuration may be implemented
Specific Detection task.Research and development cost and the development cycle of new product can be substantially reduced using the system.It can accelerate online
Testing product invests the ability in market and better meets the demand of industry custom.
The technical scheme is that
A kind of flexible on-line detecting system based on Industrial Ethernet, including the signal acquisition being distributed in Industrial Ethernet
Component, controller, Industrial PC host, wherein
Signal acquisition component, including the digital camera that is connected with Industrial PC host, with controller it connect sensor；
Industrial PC host completes the acquisition of image and the human-computer interaction interface of image processing tasks and operating system；
Controller, completes detected material tracking in the production line, control digital camera takes pictures, sensor acquisition data with
And to detected material it is last execute movement.
Preferably, the computing unit of Industrial PC composition is also connected in the Industrial Ethernet, for extending detection system
Operational capability；A client application, the service routine and Industrial PC host communication are run on each computing unit, are executed
The automatic release tasks of system.
Preferably, a Detection task of detection system realizes to include three links: signal acquisition component acquisition data,
The movement of Industrial PC host and computing unit processing and analysis data, controller control executing agency；
Detection task is resolved into multiple detecting steps by detection system, and each detecting step completes a complete detection jointly
Task, Detection task may include multiple detection projects；
One detecting step is assigned to any one computing unit in Industrial Ethernet by system as a calculating task
Or on Industrial PC host；
In detection system starting, Detection task is being counted by Industrial PC host assignment to specified computing unit
Calculate starting detection program on unit；It detects program automatically and main program communication forms a dynamic detection system.
Preferably, the acquisition of detection system data includes camera image acquisition and collecting sensor signal.
The collecting sensor signal is to connect to obtain data with sensor by the input and output of controller, eventually by
Industrial Ethernet passes to Industrial PC host from controller, the I/O channel for needing to acquire by the configuration definition of software,
Controller each execution period acquires the value in these channels in real time, and data are packaged through UDP communications protocol in industry
Broadcast transmission data in Ethernet；The detection program of sensor signal is needed to obtain data by ethernet broadcast data packet, and
And historical data is ranked up storage according to reference signal.
The camera image acquisition is to obtain image by Industrial PC host computer camera driver, in Industrial PC master
A middle layer is added in machine system software, a general camera operation interface is defined, to different vendor and distinct interface
Camera call respective driver to realize specific function in general-purpose interface respectively, be packaged into an individual Dynamic link library
Library.
Preferably, the Industrial PC host and computing unit are realized at modular image and data by detection tree technology
Reason；The detection tree technology is that the algorithm of image small one by one and data processing is together in series, and forms chain, several chains
Detection tree is re-formed, each algorithm on detection tree is general algorithm, certain processing task is completed, by general
Image procossing library and detection tree build large-scale image processing application.
Preferably, the detection system includes a general image processing algorithm library, and the algorithm in image procossing library is pressed
Classify according to purposes and function, needs to build image processing chain according to Detection task by software platform.
Preferably, execution movement includes triggering camera in on-line detecting system, starts to acquire signal, triggers device for eliminating,
The result of calculating is either sent to executing agency by industrial bus；Common control is defined as one in the controller
Then common movement is established a maneuver library for calling by a movement；Director demon tracing detection object, fixed
Time point executes the movement in maneuver library；The logic of control is described by configuration file and passes to controller；On controller
A control interpretive program is run, actual control action is made according to the trace logic of definition and movement.Advantages of the present invention
It is:
1. the hardware and software of the flexible on-line detecting system provided by the present invention based on Industrial Ethernet, system is realized
Compare fixation, various difference online detection instruments in different industries can be common to.
2. on-line detecting system of the invention by the acquisition of image and data, handles and control logic all generalizations, phase
For traditional dedicated on-line detecting system, have the new equipment R&D cycle short, research and development are low with maintenance cost, and the upgrading of system is changed
In generation, is simple, and has good continuity.
3. data processing of the invention will be by that can will lead to using a general image procossing library and detection tree technology
Algorithm builds different image processing applications so that a set of detection system is applied to all detection devices and is possibly realized.
Relative to traditional image processing method, there is algorithm and apply separated advantage, there is good configurability and expansible
Property.
4. on-line detecting system of the invention is using the topological structure based on Industrial Ethernet and and using in Ethernet
Parallel computing, so that the image acquisition units and arithmetic element of system are very easy to extension.It may be implemented using the technology
Superfast large size detection system, technically provides possibility for on-line detecting system is inter-trade.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the structure principle chart of the flexible on-line detecting system of the present invention based on Industrial Ethernet；
Fig. 2 is the interlayer structure schematic diagram of general camera operation interface of the present invention；
Fig. 3 is the schematic diagram of detection tree technology of the present invention；
Fig. 4 is the example schematic of one configuration file of controller in embodiment.
Specific embodiment
As shown in Figure 1, the disclosed flexible on-line detecting system based on Industrial Ethernet, including signal acquisition
Component, controller and Industrial PC host, in which: signal acquisition component includes digital camera, sensor, digital camera and work
Industry PC host is connected, and the signal of sensor is connected with controller by conducting wire or industrial bus；Industrial PC host completes figure
The human-computer interaction interface of the acquisition of picture and image processing tasks and operating system；Controller completes detected material in production line
On tracking, control digital camera take pictures, sensor acquisition data and to detected material it is last execute movement.The industry
It is communicated between PC host and controller by Industrial Ethernet connection, by TCP/IP and udp protocol.The Industrial Ethernet
On be also connected with Industrial PC composition computing unit, for extending the operational capability of detection system.It is also connected in Industrial Ethernet
There is 3G or 4G module, system will test by 3G or 4G module and be connected with the external world, will test the production report and diagnosis of system
Data are wirelessly sent to the mobile communication device of administrative staff.
One Detection task acquires data using one or more camera and signal path.The realization of Detection task is logical
Detection program software is crossed to realize.Inspection software operates in above Industrial PC host.And control task passes through controller in real time
To realize.One detection system can have multiple Detection tasks, and a host Industry PC host can run one or more
Detect program.When the service ability of Industrial PC host is inadequate, can will test program be assigned to it is other in Ethernet
On computing unit.Each detection program passes through and the work and processing of controller communication concurrent collaborative.Pass through between computing unit
Ethernet communication.Each computing unit independent IP address on network, and with host in a subnet.One complete
Detection program operate on Industrial PC host, detect and constantly communicate and exchange data between program and controller.It calculates single
Member can be extended according to the needs of operational capability, and network structure in this way may be implemented from small-sized on-line checking mould
Detection system of the block to ultra-large type.
One Detection task of detection system realizes to include three links: signal acquisition component acquires data, Industrial PC
The movement of host and computing unit processing and analysis data, controller control executing agency.Detection system decomposes Detection task
At multiple detecting steps, each detecting step completes a complete Detection task jointly, and Detection task may include multiple detections
Project；One detecting step is assigned to any one computing unit or work in Industrial Ethernet by system as a calculating task
On industry PC host；In detection system starting, Detection task by Industrial PC host assignment to specified computing unit, and
Starting detection program on computing unit；It detects program automatically and main program communication forms a dynamic detection system.
Data acquisition is to be realized on hardware by digital camera, sensor and ancillary equipment.Usual situation is also
Certain mechanical structure is needed to fix acquisition hardware and attachment.For specific Detection task, different hardware can be selected, it is attached
Part and mechanical structure realize image and data acquisition finally by detection system software.The processing of data is by operating in
Software on Industrial PC host or computing unit calculates data collected, comparison, analyze needed as a result, sentencing
Whether qualified determine detected object, finally passes the result to controller.Required real-time is dynamic on on-line detecting system
It is all to be controlled by controller, such as the real-time triggering of camera, real-time control of executing agency etc..
The acquisition of detection system data includes camera image acquisition and collecting sensor signal.The collecting sensor signal
It is to connect to obtain data with sensor by the input and output of controller, passes to work from controller eventually by Industrial Ethernet
Industry PC host, the I/O channel for needing to acquire by the configuration definition of software, controller each execution period lead to these
The value in road acquires in real time, and data are packaged and broadcast transmission data in Industrial Ethernet by UDP communications protocol；It needs to pass
The detection program of sensor signal obtains data by ethernet broadcast data packet, and historical data is carried out according to reference signal
Sequence storage.Each detection program can obtain the historical data of interested signal path.
The camera image acquisition is to obtain image by Industrial PC host computer camera driver.Camera in the market
There is different brands, the driver of different interfaces, camera is also not quite similar.In order to guarantee the versatility of system, the present invention
A middle layer is added in Industrial PC host system software, the function of camera is abstracted, defines a general phase
Then machine operation interface calls respective driver to realize general-purpose interface in the camera of different vendor and distinct interface respectively
In specific function, be packaged into an individual dynamic link libraries.If necessary to support new camera, it is only necessary to be connect according to general
Cause for gossip shows a new dynamic link libraries.The Universal and scalability that can guarantee system by interlayer structure, such as Fig. 2 institute
Show.
Image and the process of data processing are entirely that different, traditional method has and consolidates algorithm for different applications
Change into hardware, also has by writing dedicated software program and carry out.Regardless of which kind of method requires according to the difference of the application
System is redesigned and is developed.Relative to traditional method, on-line detecting system of the present invention passes through detection tree skill
Art realizes modular image and data processing.Detection tree is to have connected image small one by one with the algorithm of data processing
Come, goes here and there together as a chain.Each algorithm on chain is general algorithm, completes certain processing task.Often
One algorithm has input parameter or output parameter.It can be used as the defeated of algorithm below in the output of the algorithm of detection tree front
Enter, is transmitted backward in tree so the calculated result of all algorithms can detect always.Thereby realize the function of detection tree
With the circulation of information.Single algorithm itself is independent of any application, but being different can after algorithm is connected into detection tree
To complete a variety of different detection functions.The instance graph and input/output argument that Fig. 3 is a detection tree are in detection tree
Transmitting.
The detection system includes a general image processing algorithm library, the algorithm in image procossing library according to purposes and
Function is classified, and needs to build image processing chain according to Detection task by software platform.There can also be layer in detection tree
There can be catalogue in secondary structure, that is, detection tree, and may include sub- detection chain in catalogue.At general image
Li Ku and detection tree can build large-scale image processing application and come.
Execution movement includes triggering camera in on-line detecting system, starts to acquire signal, triggers device for eliminating, or will
The result of calculating is sent to executing agency etc. by industrial bus.The present invention in order to enable executing agency control generalization,
Common control is defined as acting one by one in controller, a maneuver library then is established into common movement for calling；
Director demon tracing detection object, point executes the movement in maneuver library at a fixed time；The logic of control, which passes through, to be configured
File describes and passes to controller；A control interpretive program is run on controller, according to the trace logic of definition and movement
Make actual control action.
Fig. 4 is the example schematic of one configuration file of controller.Bottle transmits in the production line, by three working positions
It sets, completes different operation steps in different positions.Bottle enters workspace by the photoelectric sensor induction of left end,
The position of bottle in the production line is positioned by the pulse counter of conveyer belt later.Our automations to production first
Single production object is described in journey.In this example, after bottle enters workspace when 100 conveyor pulses
Time executes drying to bottle, and then whether 200 pulses are qualified to object test object of taking pictures later, at last 200 pulses
Substandard product is eliminated into conveyer belt.In this process, movement, which is executed, enters workspace initial position relative to object
Conveyor pulses delay be exactly target value.One or more movement in maneuver library can be executed at each target value.By
In interpretive program be a general program, and control logic can be detection system common software in the form of configuration file
Definition.Configuration file can pass to controller and be explained by interpretive program.So the control by the detection system executes
Maintain the versatility of system.
Through practicing, on-line detecting system provided by the present invention applies the bottle cap in beverage production industry to detect, canned liquid
Position, coding detection, highest processing speed can reach 90,000 bottles per hour.The box gluing machine high speed glue spraying of packaging industry detects, paper
Case horn mouth detection speed highest can achieve 60,000 cartons per hour, and 400 meters of the linear transmission speed of highest is per minute.This
All on-line detecting systems of company are all using duplicate detection platform and control system, that is to say, that do not need to be new
The special software of equipment development and control system.So it is based on the system, new-product development and the period ratio issued to market
It is shorter, it is easy to be customized according to the demand of client and extend on-line checking function without changing core system.It is final to reduce
Research and development cost and the market core competitiveness for improving product.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all to lead according to the present invention
The modification for wanting the Spirit Essence of technical solution to be done, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of flexible on-line detecting system based on Industrial Ethernet, it is characterised in that: including being distributed in Industrial Ethernet
Signal acquisition component, controller, Industrial PC host, wherein
Signal acquisition component, including the digital camera that is connected with Industrial PC host, with controller it connect sensor；
Industrial PC host completes the acquisition of image and the human-computer interaction interface of image processing tasks and operating system；
Controller completes the tracking of detected material in the production line, and control digital camera is taken pictures, sensor acquires data and right
Detected material it is last execute movement；
The acquisition of detection system data includes camera image acquisition and collecting sensor signal:
The collecting sensor signal is to connect to obtain data with sensor by the input and output of controller, eventually by industry
Ethernet passes to Industrial PC host from controller, the I/O channel for needing to acquire by the configuration definition of software, control
Device each execution period acquires the value in these channels in real time, and data are packaged through UDP communications protocol in industrial ether
Broadcast transmission data in net；The detection program of sensor signal is needed to obtain data by ethernet broadcast data packet, and will
Historical data is ranked up storage according to reference signal；
The computing unit of Industrial PC composition is also connected in the Industrial Ethernet, for extending the operational capability of detection system,
It is also connected with digital camera on each computing unit, runs a client application, the service routine and Industrial PC host are logical
News, execute the automatic release tasks of system；The Industrial PC host and computing unit are realized modular by detection tree technology
Image and data processing；The detection tree technology is that the algorithm of image small one by one and data processing is together in series, and is formed
Chain, several chains re-form detection tree, each algorithm on detection tree is general algorithm, completes certain processing and appoints
Business builds large-scale image processing application by general image procossing library and detection tree.
2. flexible on-line detecting system according to claim 1, it is characterised in that: a Detection task of detection system is realized
Include three links: signal acquisition component acquires data, Industrial PC host and computing unit processing and analysis data, controller
Control the movement of executing agency；
Detection task is resolved into multiple detecting steps by detection system, and each detecting step is completed a complete detection jointly and appointed
Business, Detection task may include multiple detection projects；
One detecting step is assigned to any one computing unit or work in Industrial Ethernet by system as a calculating task
On industry PC host；
In detection system starting, Detection task is and single calculating by Industrial PC host assignment to specified computing unit
Starting detection program in member；It detects program automatically and main program communication forms a dynamic detection system.
3. flexible on-line detecting system according to claim 2, it is characterised in that: the camera image acquisition is to pass through industry
PC host computer camera driver obtains image, and middle layer is added in Industrial PC host system software, defines one
A general camera operation interface calls respective driver to realize in the camera of different vendor and distinct interface logical respectively
With function specific in interface, it is packaged into an individual dynamic link libraries.
4. flexible on-line detecting system according to claim 3, it is characterised in that: the detection system includes one general
Image processing algorithm library, the algorithm in image procossing library is classified according to purposes and function, by software platform according to detection
Task needs to build image processing chain.
5. flexible on-line detecting system according to claim 4, it is characterised in that: execution, which acts, in on-line detecting system includes
Camera is triggered, starts to acquire signal, triggers device for eliminating, or the result of calculating is sent to execution machine by industrial bus
Structure；In the controller common control is defined as acting one by one, then will common movement establish a maneuver library for
It calls；Director demon tracing detection object, point executes the movement in maneuver library at a fixed time；The logic of control passes through
Configuration file describes and passes to controller；On controller run a control interpretive program, according to the trace logic of definition with
Make actual control action.
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| CN106933351B (en) * | 2017-02-13 | 2020-12-22 | 北京奇虎科技有限公司 | Method and device for starting camera in mobile terminal and mobile terminal |
| CN107310795A (en) * | 2017-07-04 | 2017-11-03 | 上海烟草机械有限责任公司 | Product external packaging detector and detecting system based on machine vision technique |
| CN111638672B (en) * | 2020-06-05 | 2024-01-16 | 昆山艾控智能科技有限公司 | Automatic control system of industrial machine |
| CN113093682B (en) * | 2021-04-09 | 2022-07-05 | 天津商业大学 | Non-centralized recursive dynamic load balancing computing system |
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