CN106444648A - Production equipment data acquisition apparatus and method for smart factory - Google Patents
Production equipment data acquisition apparatus and method for smart factory Download PDFInfo
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- CN106444648A CN106444648A CN201610472480.0A CN201610472480A CN106444648A CN 106444648 A CN106444648 A CN 106444648A CN 201610472480 A CN201610472480 A CN 201610472480A CN 106444648 A CN106444648 A CN 106444648A
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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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
- G05B2219/31308—Capture image asynchronously with processing of analysis, identification
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to a production equipment data acquisition apparatus for a smart factory. The production equipment data acquisition apparatus includes a camera, an AD sampling circuit, a microprocessor and a radio frequency transmission circuit, wherein the camera is used for acquiring the displayed images of an equipment meter or a display; the AD sampling circuit is used for converting analog signals into digital signals; the microprocessor is used for processing and analyzing the images of the meter or the display; the radio frequency transmission circuit is used for uploading the analyzed data to a server background system; and after the CMOS camera acquires the images of a meter panel or a display screen, the images are processed and analyzed, and the analyzed data is uploaded to the server background system through the radio frequency transmission circuit. The data acquisition apparatus can accurately acquire the data information displayed by old-fashioned equipment with a meter panel or novel equipment with a display screen and transmit the data information to the background system, and does not need to decode and analyze different interfaces and protocols of different pieces of equipment and also does not need to mount a sensor in production equipment while the sensor may influence normal operation of the production equipment. Therefore, the production equipment data acquisition apparatus for a smart factory has the advantages of being wide in adaptability, being simple and convenient for installation, and being lower in deployment difficulty and cost, compared with the original technology.
Description
Technical field
The present invention relates to data acquisition technology field, particularly to the production device data acquisition dress in a kind of intelligent plant
Put and method.
Background technology
In industrial 4.0 blueprints, connect the information physical network of all（CPS）It is to realize that intelligent plant, intelligence are fertile
Basis, and CPS will obtain all production equipment, perception equipment, networked terminals endlessly, including what the producer itself produced
Data, these data will penetrate into the whole life cycle of enterprise operation, value chain or even product, is industry 4.0 and manufacture
The foundation stone of revolution.
But CPS network model is a quite preferable frame of reference, does not provide solution in CPS network model
The Implementation Technology of the reachability problem of heterogeneous system and equipment room and path.Production equipment in such as intelligent plant,
Obtain and transmit all issuable data from which, have the difficulty of a lot of reality to need to solve.Such as old-fashioned production equipment
Not having communication interface, instrument is all simulation；Although new-type production equipment has been substantially all middle control computer or PLC, but they
Communications protocol and interface be also omnifarious, have RS232,485, Ethernet etc., even if there being identical interface shape, its number
May be all different according to form and rule, even data can be encrypted by some.
The technology being acquired commonly using to the data of the equipment of production at present has following two：
The first is to gather relevant data by installing sensor additional at device interior.This method is for old-fashioned and new-type life
Product equipment is all suitable for, but there is following defect：One is to install additional due to sensor, the parameter of acquisition and equipment display itself
Parameter may be inconsistent.Data as shown on the analog meter dial plate of retrospective installation or the middle control computer display screen of new equipment
With install sensor collection additional after the data that are transferred in server inconsistent, bring confusion can to the production of field worker；Two are
Take equipment apart due to needs and install sensor additional in inside, there is the properly functioning hidden danger of the equipment of impact, equipment vendors be likely to because of
For these follow-up sensors installing additional, the refusal guarantee when equipment goes wrong.
The second is that the output interface utilizing production equipment is to gather relevant data.This method is only applicable to new-type life
Product equipment, the defect that additionally there are is to gather data in this way to assist in the face of various physical interfaces and communication
View, will analyze its data form to each agreement, and some possibly cannot be analyzed, and even some are encrypted and cannot adopt
Collection.
The conventional data collecting system of both the above is transferred to frequently with the data that equipment side is collected by cable network
Server background system, numerous for equipment, put intensive integrated mill and dispose these systems and generally require very high construction
Difficulty and networking cost.
Content of the invention
Production device data acquisition device that the technical problem that present invention mainly solves is to provide in a kind of intelligent plant and
Method, the production device data acquisition device in this intelligent plant can be avoided legacy device to reduce and produce device data acquisition
Difficulty and the cost setting up numerous devices collect data transmission network.
In order to solve the problems referred to above, the present invention provides the production device data acquisition device in a kind of intelligent plant, this intelligence
Production device data acquisition device in energy factory includes：Camera, AD sample circuit, radio frequency transmission circuitry and microprocessor,
Wherein, the image that camera acquisition equipment instrument or display show, the analog signal that camera obtains is turned by AD sample circuit
Sending into microprocessor after becoming data signal, Instrument image is processed and resolves by microprocessor, and radio frequency transmission circuitry is to solution
Analyse successful data and be uploaded to server background system.
Saying further, described camera includes CCD camera.
Saying further, described image procossing includes image enhaucament and/or image binaryzation process.
Saying further, described image procossing includes at the LPF of normalization and the rejecting False Intersection Points reducing data volume
Reason.
The present invention also provides the production device data acquisition device in another kind of intelligent plant, the production in this intelligent plant
Device data acquisition device includes：Camera, AD sample circuit, radio frequency transmission circuitry, microprocessor, Electromechanical Control circuit and machine
Electric control arm, wherein.The image that camera acquisition equipment instrument or display show, the mould that camera is obtained by AD sample circuit
Intending sending into microprocessor after signal is changed into data signal, microprocessor carries out image processing and data solution to Instrument image
Analysis, the data to successfully resolved for the radio frequency transmission circuitry are uploaded to server background system, and are controlled by Electromechanical Control circuit
Electromechanical Control arm.
Saying further, described camera includes CCD camera.
Saying further, described image procossing includes image enhaucament and/or image binaryzation process.
Saying further, described image procossing also includes the LPF of normalization and the rejecting False Intersection Points reducing data volume
Process.
The present invention also provides a kind of numerical value accurate acquisition method that instrument board indicates.The numerical value accurate acquisition side of instrument board instruction
Method, including：
Make background template, the optical axis of camera be set to overlap with instrument board central shaft, obtain the image of instrument board with this,
And using the instrument board image after rejecting pointer as background template；
Divide covering of the fan, for round dot, the card of instrument board is divided into multiple covering of the fans with instrument board central point, then with in instrument board
Heart point is that each pointer minimum scale unit in each covering of the fan is divided into multiple minutes covering of the fans by round dot；
Making recognition template, by the blacking respectively of the region outside each covering of the fan, covering of the fan interior zone is left white, and forms multiple different knowledge
Other template, then by the blacking respectively of the region outside each point of covering of the fan, a point covering of the fan interior zone is left white, and forms multiple different point identification
Template；
Instrument board pointer position recognition, first carries out differing from shadow calculation process and obtains with background template after gathering current instrument board image
Pointer image, then pointer image is overlapped calculation process with recognition template one by one, when operation result and current recognition template
When identical, then pointer is not in this recognition template, and determines in next recognition template whether have pointer successively, when computing knot
When fruit is incomplete same with current recognition template, the pointer position determining in recognition template is used to determine that pointer is positioned at this identification mould
Concrete point of recognition template position in plate, it is thus achieved that the numerical value of pointer instruction.
Saying further, the rotating shaft position at pointer arranges one and instrument board concentric circles, and this concentric circles is each with instrument board
Being left white inside covering of the fan, outside full coat is black.
Saying further, described image procossing includes image enhaucament and/or image binaryzation process.
Saying further, described image processing also includes the low pass of normalization and the rejecting False Intersection Points reducing data volume
Filtering process.
The present invention also provides a kind of display display image collecting method accurately.This display display image is accurate
Collecting method, including preset the data position over the display of collection in the microprocessor, obtain display figure
Position as presetting carries out image procossing, extracts the corresponding numerical value of display.
Production device data acquisition device in intelligent plant of the present invention, including camera, AD sample circuit, radio frequency transmission circuitry
And microprocessor, the image that wherein camera acquisition equipment instrument or display show, camera is obtained by AD sample circuit
Analog-signal transitions is feeding microprocessor after data signal, and microprocessor carries out image procossing and parsing to Instrument image, penetrates
Frequently transmission circuit is uploaded to server background system to the data after parsing.For old-fashioned or new-type production equipment, pass through CMOS
After camera obtains the image of instrument board or display screen, image is processed and resolves, and the data after resolving are by penetrating
Frequently transmission circuit is uploaded onto the server background system.This data acquisition unit is to the retrospective installation with instrument board or display screen
Data message shown by new equipment can gather accurately and be transferred to background system, has not both needed to decode and has analyzed
The distinct interface of distinct device and agreement, it is not required that install sensor additional at production device interior and its normal fortune may be affected
OK, having extensive adaptability, simple installation, the difficulty of deployment and cost are all a lot of than original technology reduces.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the accompanying drawing of required use is briefly described, it should be apparent that, and the accompanying drawing in describing is the one of the present invention
A little embodiments, to those skilled in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is to produce device data acquisition device first embodiment electrical schematic diagram.
Fig. 2 is to produce device data acquisition device the second embodiment electrical schematic diagram.
Fig. 3 is the numerical value accurate acquisition method flow diagram of instrument board instruction.
Fig. 4 is instrument board background template schematic diagram.
Fig. 5 is recognition template diagram.
Fig. 6 is point recognition template schematic diagram dividing with instrument board minimum scale.
Fig. 7 is to reject pointer image schematic diagram.
Below in conjunction with embodiment, and referring to the drawings, the realization of the object of the invention, functional characteristics and advantage are made furtherly
Bright.
Detailed description of the invention
In order to make purpose to be invented, technical scheme and advantage clearer, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is invention
A part of embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
The every other embodiment being obtained on the premise of making creative work, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the present invention provides the production device data acquisition device embodiment in a kind of intelligent plant.
Production device data acquisition device in this intelligent plant includes：Including camera the 1st, AD sample circuit the 2nd, radio frequency passes
Transmission of electricity road 4 and microprocessor 3, wherein, described camera 1 is for the image obtaining equipment instrument or display show, AD sampling
The analog-signal transitions that camera obtains is to send into microprocessor 3 after data signal by circuit 2, and described microprocessor 3 is to instrument
Or display display image processes and resolves, after described radio frequency transmission circuitry 4 is uploaded to server to the data after parsing
Platform system.
Specifically, described camera 1 includes the camera using CCD photosensitive sensors.It is right that described image procossing includes
Image enhaucament and/or image binaryzation process, also include the low pass of normalization and the rejecting False Intersection Points reducing data volume to image
Filtering etc. are processed.
Due to data shown by the new equipment of the retrospective installation or display screen with instrument board for the data acquisition unit
Information can gather accurately and be transferred to background system, both do not needed decode analyze distinct device distinct interface and
Agreement, it is not required that install sensor additional producing device interior and may affect that it is properly functioning, there is extensive adaptability, pacify
Dress simplicity, the difficulty of deployment and cost are all a lot of than original technology reduces.
In the present embodiment, it would however also be possible to employ CMOS photosensitive sensors, owing to carrying AD sampling electricity inside cmos sensor
Road, directly energy output digit signals, therefore only needs to delete the AD sample circuit in above-described embodiment, the connection of each circuit
Relation and function are same as described above, repeat no more.
As in figure 2 it is shown, the present invention also provides the production device data acquisition device in another kind of intelligent plant, this intelligence work
Production device data acquisition device in factory includes：Camera the 1st, AD sample circuit the 2nd, radio frequency transmission circuitry the 4th, microprocessor the 3rd, machine
Electric control circuit 5 and the Electromechanical Control arm being connected with Electromechanical Control circuit 5, wherein, camera 1 obtains equipment instrument or display
The image of display, the analog-signal transitions that camera obtains is feeding microprocessor, micro-place after data signal by AD sample circuit 2
Reason device 3 carries out image procossing and parsing to Instrument image, and radio frequency transmission circuitry 4 is uploaded to server background to the data after parsing
System, and control Electromechanical Control arm action by Electromechanical Control circuit 5.
Specifically, described camera 1 includes the photosensitive sensors using ccd sensor.It is right that described image procossing includes
Image enhaucament and/or image binaryzation process, also include the low pass of normalization and the rejecting False Intersection Points reducing data volume to image
Filtering etc. are processed.In the present embodiment, it would however also be possible to employ CMOS photosensitive sensors, owing to carrying AD sampling inside cmos sensor
Circuit, directly energy output digit signals, therefore only needs to delete the AD sample circuit in above-described embodiment, the company of each circuit
Connect relation and function is same as described above, repeat no more.
Due to data shown by the new equipment of the retrospective installation or display screen with instrument board for the data acquisition unit
Information can gather accurately and be transferred to background system, both do not needed decode analyze distinct device distinct interface and
Agreement, it is not required that install sensor additional producing device interior and may affect that it is properly functioning, there is extensive adaptability, pacify
Dress simplicity, the difficulty of deployment and cost are all a lot of than original technology reduces.
As it is shown on figure 3, the present invention does not provide the numerical value accurate acquisition of a kind of instrument board instruction for old-fashioned production equipment
Method.The numerical value accurate acquisition method needle method of this instrument board instruction includes,
Step S10, makes background template, is set to the optical axis of camera overlap with instrument board central shaft, obtains instrument with this
The image of dish, and using the instrument board image after rejecting pointer as background template, as shown in Figure 4；
Step S11, divides covering of the fan, for round dot the card of instrument board is divided into multiple covering of the fans with instrument board central point, then with
Instrument board central point is that each pointer minimum scale unit in each covering of the fan is divided into multiple points of covering of the fans by round dot；Specifically,
5 recognition templates, i.e. recognition template-1, recognition template-2, recognition template-3 can be marked off as shown in Figure 5 ... .. identifies mould
Plate-5, each recognition template divides composition recognition template A, point recognition template B by its minimum scale as shown in Figure 6 .... point identification
Templates J etc., should not comprise pointer image in each recognition template；
Step S12, makes recognition template, and by the blacking respectively of the region outside each covering of the fan, covering of the fan interior zone is left white, and is formed multiple
Different recognition templates, then by the blacking respectively of the region outside each point of covering of the fan, a point covering of the fan interior zone is left white, and forms multiple difference
Point recognition template, eliminate pointer image exactly such as Fig. 7；Described blacking can use manual type with special soft on PC
Part, if Photoshop or drawing software are by the region blacking outside covering of the fan；
Step S13, instrument board pointer position recognition, first carry out differing from shadow computing with background template after gathering current instrument board image
Processing and obtaining pointer image, i.e. current instrument board image subtracting background template obtains pointer image, then by pointer image one by one with
Recognition template is overlapped calculation process, and when operation result is identical with current recognition template, then pointer is not in this identification
In template, and determine in next recognition template whether have pointer successively, when operation result is incomplete same with current recognition template
When, use the pointer position determining in recognition template to determine that pointer is positioned in this recognition template concrete point of recognition template position, obtain
Obtain the numerical value of pointer instruction；Above-mentioned 5 recognition templates and the corresponding several points of recognition template positions of each recognition template are preset with
In database, entering row operation comparison after collecting current instrument board image respectively with each recognition template, the first step is schemed
As recognizer determines which recognition template pointer is positioned at, second step uses same mode at the recognition template determining pointer position
Determine the particular location of pointer on interior point recognition template, such as determine that pointer is positioned in recognition template-1, illustrates dial plate data
Between 0 ~ 50, then the identification of second stage that will mark off with recognition template-1 respectively after current instrument board image further
Template enters row operation, and the recognition template participating in computing has recognition template-4 and recognition template-5, is easy to image recognition algorithm
Determine that pointer is positioned at particular location in point recognition template, illustrate instrumented data between 30 ~ 35, according to gathering data precision
Requirement can be determined which number between pointer position correspondence 30 ~ 35 with conventional image recognition algorithm.
Image procossing described above includes image enhaucament and/or image binaryzation process, also includes reducing returning of data volume
The low-pass filtering treatment etc. of one change and rejecting False Intersection Points is processed.In order to remove the interference of pointer afterbody, increase by one in the picture
Little concentric circles arranges one and instrument board concentric circles at the rotating shaft position of pointer, and this concentric circles stays inside each covering of the fan with instrument board
In vain, outside full coat is black.
To the new equipment having display, the present invention also provides a kind of display display image data acquisition side accurately
Method.This display shows image collecting method accurately, including preset the data of collection in the microprocessor at display
Upper position, carries out image procossing in the position that the display image obtaining is preset, and extracts the corresponding numerical value of display.
Specifically to extract the data instance explanation of the data of current oil temperature and oil cylinder current location, the figure of acquisition from display
Image position is actionless, and display shows that the position of above-mentioned data is also fixing, therefore can be from present image
The rectangular region intercepting lower left corner coordinate (Xa1, Ya1) to upper right corner coordinate (Xa2, Ya2), as the first block, intercepts lower-left
Angular coordinate (Xb1, Yb1) arrives the rectangular region of upper right corner coordinate (Xb2, Yb2) as the second block；Use from the first block
The data that conventional recognizer identifies are the data of current oil temperature, use conventional recognizer to identify from the second block
Data be the data of oil cylinder current location, thus realize collection related data from the image that display show.
Described above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that：It still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to wherein portion of techniques feature, and these are changed or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the production device data acquisition device in intelligent plant, it is characterised in that include camera, AD sample circuit, radio frequency
Transmission circuit and microprocessor, wherein, camera obtains the image that equipment instrument or display shows, and AD sample circuit will shooting
The analog-signal transitions that head obtains is feeding microprocessor after data signal, and Instrument image is carried out processing by microprocessor conciliates
Analysis, the data to successfully resolved for the radio frequency transmission circuitry are uploaded to server background system.
2. the production device data acquisition device in intelligent plant according to claim 1, it is characterised in that described shooting
Head includes CCD camera.
3. the production device data acquisition device in intelligent plant, it is characterised in that include camera, AD sample circuit, radio frequency
Transmission circuit, microprocessor, Electromechanical Control circuit and Electromechanical Control arm, wherein, camera obtains equipment instrument or display shows
The image showing, the analog-signal transitions that camera obtains is to send into microprocessor, micro-process after data signal by AD sample circuit
Instrument image is processed and resolves by device, and radio frequency transmission circuitry is uploaded to server background system to the data after parsing, and
And control Electromechanical Control arm action by Electromechanical Control circuit.
4. the production device data acquisition device in intelligent plant according to claim 4, it is characterised in that described shooting
Head includes CCD camera.
5. the production device data acquisition device in intelligent plant according to claim 4, it is characterised in that described image
Process includes image enhaucament and/or image binaryzation process.
6. the production device data acquisition device in intelligent plant according to claim 4, it is characterised in that described image
Process the low-pass filtering treatment of the normalization also including reducing data volume and rejecting False Intersection Points.
7. the production device data acquisition device in intelligent plant according to claim 6, it is characterised in that described image
Process the low-pass filtering treatment of the normalization also including reducing data volume and rejecting False Intersection Points.
8. the numerical value accurate acquisition method of instrument board instruction, including：
Make background template, the optical axis of camera be set to overlap with instrument board central shaft, obtain the image of instrument board with this,
And using the instrument board image after rejecting pointer as background template；
Divide covering of the fan, for round dot, the card of instrument board is divided into multiple covering of the fans with instrument board central point, then with in instrument board
Heart point is that each covering of the fan is divided into multiple minutes covering of the fans with the least unit of integer number pointer instruction in each covering of the fan by round dot；
Making recognition template, by the blacking respectively of the region outside each covering of the fan, covering of the fan interior zone is left white, and forms multiple different knowledge
Other template, by the blacking respectively of the region outside each point of covering of the fan, a point covering of the fan interior zone is left white, and forms multiple different point identification mould
Plate；
Instrument board pointer position recognition, first carries out differing from shadow calculation process and obtains with background template after gathering current instrument board image
Pointer image, then pointer image is overlapped calculation process with recognition template one by one, when operation result and current recognition template
When identical, then pointer is not in this recognition template, and determines in next recognition template whether have pointer successively, when computing knot
When fruit is incomplete same with current recognition template, the pointer position determining in recognition template is used to determine that pointer is positioned at this identification mould
Concrete point of recognition template position in plate, it is thus achieved that the numerical value of pointer instruction.
9. the numerical value for instrument board instruction according to claim 8 carries out accurate acquisition method, it is characterised in that referring to
The rotating shaft position of pin arranges one and instrument board concentric circles, and this concentric circles is left white inside each covering of the fan with instrument board, and outside full coat is black.
10. display display image collecting method accurately, including, preset the data gathering in the microprocessor in display
Position on device, carries out image procossing in the position that the display image obtaining is preset, and extracts the corresponding numerical value of display.
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| CN107545240A (en) * | 2017-07-07 | 2018-01-05 | 杰为软件系统(深圳)有限公司 | A kind of industrial control equipment display screen output picture acquisition system and method |
| CN108427959A (en) * | 2018-02-07 | 2018-08-21 | 北京工业大数据创新中心有限公司 | Board state collection method based on image recognition and system |
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