CN109709886A - A kind of electric automatization control Teaching Information Processing System and method based on PLC - Google Patents
A kind of electric automatization control Teaching Information Processing System and method based on PLC Download PDFInfo
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- CN109709886A CN109709886A CN201811554575.2A CN201811554575A CN109709886A CN 109709886 A CN109709886 A CN 109709886A CN 201811554575 A CN201811554575 A CN 201811554575A CN 109709886 A CN109709886 A CN 109709886A
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Abstract
The invention belongs to electric automatizations to control instructional technology field, a kind of electric automatization control Teaching Information Processing System and method based on PLC is disclosed, the electric automatization control Teaching Information Processing System based on PLC includes: power supply module, photographing module, operation module, central control module, network communication module, WEB server, AC module, analog simulation module, evaluation module, data memory module, display module.The present invention realizes the emulation training of electric energy meter calibration by analog simulation module using DELPHI programming technique, SQLServer database management technology and UNITY3D three-dimensional virtual reality technology, training for electric energy marketing personnel and electric energy meter calibration personnel provides new method and resource, solve that matter emulation training investment is big, the situation of effect difference；Meanwhile reading, show and scoring automatically by evaluation module, greatly reduce the assessment mode intensity of teacher.
Description
Technical field
The invention belongs to electric automatization control instructional technology field more particularly to a kind of electric automatizations based on PLC
Control Teaching Information Processing System and method.
Background technique
Electrical engineering and it's automation major is a new branch of science in electric information field, but due to daily with people
Life and industrial production are closely related, and development is very fast, now also relatively mature.Have become new high-tech industry
Important component, be widely used in the fields such as industry, agricultural, national defence, played in national economy more and more important
Effect.Its feeler stretches to all trades and professions, the design of small to one switch, and the big research for arriving aerospace aircraft has its figure.This
Professional life can be engaged in system operation related with electrical engineering, automatic control, power electronic technique, information processing, test skill
The work in the fields such as art, development, economic management and electronics and computer technology application, is that wide aperture " compound " is advanced
Engineering talent.Demand of the field to high level talent is very big.It is estimated that with the entrance of external large enterprises, at this
The phenomenon that very big notch will occur in professional domain, be likely to occur the talent at that time supply falls short of demand.However, existing electric automatization control
Tutoring system processed also cannot achieve the failure in arbitrarily setting calibrating in the training and teaching of electric energy meter；The electric energy meter of selection and
Checking table is once selected, in the check test and test of electric energy meter, since connection box of electric energy meter can not change in calibration equipment, no
Will be almost the same with test data when personnel's progress check test and result, it will be unable to realize personalized to multidigit student progress
Practice teaching；Meanwhile existing examination task is heavy, examines low efficiency.
In conclusion problem of the existing technology is:
Existing electric automatization control tutoring system also cannot achieve arbitrarily setting calibrating in the training and teaching of electric energy meter
In failure；The electric energy meter and checking table of selection are once selected, in the check test and test of electric energy meter, due to calibration equipment
Middle connection box of electric energy meter can not change, and different personnel carry out when check test that test data and result will be almost the same, will be unable to
It realizes and carries out personalized practice teaching to multidigit student；Meanwhile existing examination task is heavy, examines low efficiency.
It cannot achieve record content of courses image data high-definition in the prior art；It cannot achieve the teaching view of acquisition
The quantization storage of the teaching resource of frequency and network, storage speed is slower, is unfavorable for the operation efficient stable operation of system；Existing skill
Not can effectively solve " ghost " " diplopia " problem of image border in art, show tutoring system interface and acquisition instructional video,
The teaching resource of network it is not clear enough, display resource second-rate.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of, and the electric automatization control teaching based on PLC is believed
Cease processing system and method.
The invention is realized in this way a kind of electric automatization based on PLC controls education informations processing method, the base
Include: in the electric automatization control education informations processing method of PLC
Step 1 is worked normally by PLC single-chip computer control system；For the electric automatization control teaching letter based on PLC
Cease processing system power supply；
Step 2 records content of courses image data by using the image pick-up device of algorithm for image enhancement；Pass through operation button
Control the electronic equipment of teaching；WEB server, which is connected, by network interface obtains network teaching resource；It is carried out by exchange software
One-to-one exchange；
Step 3 carries out emulation study to electrical equipment by simulation software；Plate is examined electrically to know student by circuit
Knowledge carries out examination operation；
Step 4 passes through the instructional video of the memory storage acquisition based on Simulink model and the teaching money of network
Source；Tutoring system circle is shown by the display that the temporal high pass filter Nonuniformity Correction based on non-local mean filtering is handled
The teaching resource of the instructional video of face and acquisition, network.
Further, the step 2 utilizes tangent function and traditional method of indicating the pronunciation of a Chinese character function by using the image pick-up device of algorithm for image enhancement
Carry out image filtering, specific algorithm are as follows:
(1) normalizing complementary operation is carried out using following formula for original image, obtains the normalizing complement picture of original image:
Wherein, f is the gray value of original pixels, and M is maximum gradation value.M=256 herein is the maximum value of pixel grey scale
255 plus 1, it is ensured that the pixel value of normalizing complement picture section (0,1] on；
(2) it is filtered using following formula:
Wherein, a tan () is arctan function:
X (i, j) indicates that the image pixel obtained by arctan function, y (i, j) represent the image obtained after filtering processing
Pixel；
(3) enhanced normalizing complement picture is obtained using following formula:
Tan () is tangent function in formula:
It represents normalizing and mends image pixel, average (i, j) is that pixel f (i, j) surrounding n × n is adjacent in original image
The arithmetic mean of instantaneous value of grey scale pixel value in domain, it represents the gray value in region locating for pixel f (i, j).
(4) enhanced image is obtained using following formula:
F (i, j) represents image pixel after enhancing.
Further, the step 4 passes through the memory based on Simulink model, concrete model are as follows:
The signal sampling of the teaching resource of the instructional video and network of acquisition are as follows:
In formula: x (t) indicates the signal of the instructional video of acquisition and the teaching resource of network；xs(t) after indicating ideal
Signal；The quantization encoding of the teaching resource of the instructional video and network of n acquisition can be described with following formula:
In formula: QnFor quantization level, round () indicates to be rounded.
Another object of the present invention is to provide at the electric automatization control education informations described in a kind of realize based on PLC
The electric automatization based on PLC of reason method controls Teaching Information Processing System, and the electric automatization based on PLC controls religion
Learning information processing system includes:
Power supply module is connect with central control module, for controlling education informations processing for the electric automatization based on PLC
System power supply；
Photographing module is connect with central control module, for recording content of courses image data by image pick-up device；
Operation module is connect with central control module, for the electronic equipment by operation button control teaching；
Central control module, with power supply module, photographing module, operation module, network communication module, AC module, simulation
Emulation module, evaluation module, data memory module, display module connection are normal for controlling modules by PLC single-chip microcontroller
Work；
Network communication module is connect with central control module, WEB server, for connecting WEB service by network interface
Device obtains network teaching resource；
AC module is connect with central control module, for carrying out one-to-one exchange by exchange software；
Analog simulation module, connect with central control module, for carrying out emulation to electrical equipment by simulation software
It practises；
Evaluation module is connect with central control module, for examining plate to examine the electrical knowledge of student by circuit
Operation；
Data memory module is connect with central control module, for the instructional video and net by memory storage acquisition
The teaching resource of network；
Display module is connect with central control module, for showing the religion of tutoring system interface and acquisition by display
Learn the teaching resource of video, network.
Another object of the present invention is to provide at the electric automatization control education informations described in a kind of application based on PLC
The intelligent terminal of reason method.
Advantages of the present invention and good effect are as follows:
The present invention by analog simulation module using DELPHI programming technique, SQLServer database management technology and
UNITY3D three-dimensional virtual reality technology realizes the emulation training of electric energy meter calibration, is electric energy marketing personnel and electric energy meter calibration people
The training of member provides new method and resource, solves that matter emulation training investment is big, the situation of effect difference；It is able to satisfy various
The calibrating analog simulation of electric energy meter, efficiently, comprehensive, system performance is strong, does not need to configure various electric energy meters and electric energy in laboratory
Table calibrating installation, easy to use, safety overcome the various defects and deficiency of the practical training operation in laboratory；Make full use of meter
The integrated technology of calculation machine hardware and software resource, provides a kind of virtual environment in real time, three-dimensional, and student can enter completely
In virtual environment true to nature, the virtual world that viewing computer generates has the sense of reality；Meanwhile being read automatically by evaluation module,
Display and scoring, realize justice, the independence of real training examination, and examination scoring process is marked by preset program and scoring completely
Standard is achieved, so the fairness with height, and can independently be examined according to examinee, greatly reduce the examination of teacher
Working strength.
The present invention carries out image filter using tangent function and traditional method of indicating the pronunciation of a Chinese character function by using the image pick-up device of algorithm for image enhancement
Wave realizes record content of courses image data high-definition；The present invention is realized by the memory based on Simulink model
The quantization of the teaching resource of the instructional video and network of acquisition stores, and improves storage speed, effectively improves the speed of service of system；
The display that the present invention is handled by the temporal high pass filter Nonuniformity Correction based on non-local mean filtering, is filtered using NLM
Wave pre-processes video image, and carries out the appraisal of NUC parameter using filtered radio-frequency component, effectively solution image border
" ghost " " diplopia " problem, the nonuniformity correction of figure is realized, so that display shows the religion of tutoring system interface and acquisition
Learn video, the clear, stable of teaching resource of network, high quality.
Detailed description of the invention
Fig. 1 is the electric automatization control education informations processing method flow chart provided in an embodiment of the present invention based on PLC.
Fig. 2 is that the electric automatization control Teaching Information Processing System structure provided in an embodiment of the present invention based on PLC is shown
It is intended to；
In figure: 1, power supply module；2, photographing module；3, operation module；4, central control module；5, network communication module；
6, WEB server；7, AC module；8, analog simulation module；9, evaluation module；10, data memory module；11, display module.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, the electric automatization provided in an embodiment of the present invention based on PLC controls education informations processing method packet
Include following steps:
S101: it is worked normally by PLC single-chip computer control system；Teaching is controlled first for the electric automatization based on PLC
Information processing system power supply；
S102: content of courses image data is recorded by using the image pick-up device of algorithm for image enhancement；Pass through operation button control
Make the electronic equipment of teaching；WEB server, which is connected, by network interface obtains network teaching resource；One is carried out by exchange software
It exchanges one；
S103: emulation study is carried out to electrical equipment by simulation software；Examine plate to the electrical knowledge of student by circuit
Carry out examination operation；
S104: pass through the instructional video of the memory storage acquisition based on Simulink model and the teaching resource of network；
Tutoring system interface is shown by the display that the temporal high pass filter Nonuniformity Correction based on non-local mean filtering is handled
And the teaching resource of the instructional video, network acquired.
In a preferred embodiment of the invention, the image pick-up device by using algorithm for image enhancement of step S102, using just
It cuts function and traditional method of indicating the pronunciation of a Chinese character function carries out image filtering, realize record content of courses image data high-definition；Specific algorithm are as follows:
(1) normalizing complementary operation is carried out using following formula for original image, obtains the normalizing complement picture of original image:
Wherein, f is the gray value of original pixels, and M is maximum gradation value.M=256 herein is the maximum value of pixel grey scale
255 plus 1, it is ensured that the pixel value of normalizing complement picture section (0,1] on；
(2) it is filtered using following formula:
Wherein, a tan () is arctan function:
X (i, j) indicates that the image pixel obtained by arctan function, y (i, j) represent the image obtained after filtering processing
Pixel；
(3) enhanced normalizing complement picture is obtained using following formula:
Tan () is tangent function in formula:
It represents normalizing and mends image pixel, average (i, j) is that pixel f (i, j) surrounding n × n is adjacent in original image
The arithmetic mean of instantaneous value of grey scale pixel value in domain, it represents the gray value in region locating for pixel f (i, j).
(4) enhanced image is obtained using following formula:
F (i, j) represents image pixel after enhancing.
In a preferred embodiment of the invention, step S104 realizes acquisition by the memory based on Simulink model
Instructional video and network teaching resource quantization storage, improve storage speed, effectively improve the speed of service of system；Specifically
Model are as follows:
The signal sampling of the teaching resource of the instructional video and network of acquisition are as follows:
In formula: x (t) indicates the signal of the instructional video of acquisition and the teaching resource of network；xs(t) after indicating ideal
Signal；The quantization encoding of the teaching resource of the instructional video and network of n acquisition can be described with following formula,
In formula: QnFor quantization level, round () indicates to be rounded.
In a preferred embodiment of the invention, step S104 is non-by the temporal high pass filter based on non-local mean filtering
The display of homogeneity correction processing pre-processes video image using NLM filtering, and uses filtered radio-frequency component
The appraisal of NUC parameter is carried out, " ghost " " diplopia " of image border is effectively solved the problems, such as, realizes the nonuniformity correction of figure, so that
Display shows instructional video, the clear, stable of the teaching resource of network, high quality of tutoring system interface and acquisition；Algorithm
Detailed process are as follows:
(1) NLM filtering is carried out to the n-th frame image x (n) of input, obtains the low-frequency component x of imageNLm(n)；
(2) again by image x (n) and xNLm(n) subtract each other, obtain the radio-frequency component x of image x (n)NLm-H(n), it comprises originals
Most of noise, heterogeneity and a small amount of boundary in figure；
xNLm-H(n)=x (n)-xNLm(n)
(3) by xNLm-H(n) as temporal high pass filter correction in low-pass filter input to get arrive low-pass filtering result
F (n) is
In formula: M is preset time constant according to cutoff frequency；
(4) finally input picture x (n) and low-pass filtering result f (n) are subtracted each other, the correction image that x (n) can be obtained is defeated
Y (n) out.
Y (n)=x (n)-f (n)
As shown in Fig. 2, the electric automatization provided in an embodiment of the present invention based on PLC controls Teaching Information Processing System packet
It includes: power supply module 1, photographing module 2, operation module 3, central control module 4, network communication module 5, WEB server 6, exchange
Module 7, analog simulation module 8, evaluation module 9, data memory module 10, display module 11.
Power supply module 1 is connect with central control module 4, for controlling at education informations for the electric automatization based on PLC
Manage system power supply；
Photographing module 2 is connect with central control module 4, for recording content of courses image data by image pick-up device；
Operation module 3 is connect with central control module 4, for the electronic equipment by operation button control teaching；
Central control module 4, with power supply module 1, photographing module 2, operation module 3, network communication module 5, AC module
7, analog simulation module 8, evaluation module 9, data memory module 10, display module 11 connect, for being controlled by PLC single-chip microcontroller
Modules work normally；
Network communication module 5 is connect, for connecting WEB by network interface with central control module 4, WEB server 6
Server 6 obtains network teaching resource；
AC module 7 is connect with central control module 4, for carrying out one-to-one exchange by exchange software；
Analog simulation module 8 is connect with central control module 4, for being emulated by simulation software to electrical equipment
Study；
Evaluation module 9 is connect with central control module 4, for examining plate to examine the electrical knowledge of student by circuit
Core operation；
Data memory module 10 is connect with central control module 4, for by memory storage acquisition instructional video and
The teaching resource of network；
Display module 11 is connect with central control module 4, for showing tutoring system interface and acquisition by display
The teaching resource of instructional video, network.
8 emulation mode of analog simulation module provided by the invention is as follows:
Step 1: modeling
According to the shape of various electrical equipments, the practical interface of operation panel and connecting terminal, various inhomogeneities are established
The threedimensional model of electrical equipment including the electric energy meter of type, electric energy meter calibrating apparatus, power distribution cabinet and conducting wire, each electrical equipment
A corresponding independent model；
Step 2: establishing database
The theory study of electric energy meter calibration regulation and teaching database are established, and is examined according to the verification of actual power table and electric energy meter
Set pattern range request, forms the database of different check project；
Step 3: emulation is called
The established electric energy meter calibration regulation theory study of invocation step 2 and teaching database data carry out electric energy meter calibration
The theory study of regulation；Operation scenario is examined and determine according to actual power table, the three of established various electrical equipments in invocation step 1
Dimension module carries out assembly and line to the threedimensional model of each electrical equipment, generates electric energy by controlling the state of threedimensional model
The analog simulation scene of table calibrating real training.
9 wire examination method of evaluation module provided by the invention is as follows:
1) prepare a circuit examination plate for having laid completion；
2) it when receiving examination instruction, is obtained from database and prestores examination rule；
3) personnel to be examined, and personal information to be examined are determined；
4) detect whether the examination plate is located at predetermined examination region, if so, into next step；
5) it prestores certainly and loads the examination topic in the data bank of examination topic and shown in display；
6) it when detecting the response operation for the examination topic, is issued to intelligence instrument and reads correlation in the examination plate
The parameter request of circuit, intelligence instrument are exported after reading the parameter；
7) according to the received request, the parameter of the intelligence instrument output is read, and the parameter is shown in institute
It states in the corresponding examination topic of display.
Working principle provided in an embodiment of the present invention:
When the invention works, firstly, being that the electric automatization based on PLC controls education informations processing by power supply module 1
System power supply；Content of courses image data is recorded using image pick-up device by photographing module 2；It is pressed by operation module 3 using operation
The electronic equipment of key control teaching；It is taken secondly, central control module 4 connects WEB using network interface by network communication module 5
Business device 6 obtains network teaching resource；One-to-one exchange is carried out using exchange software by AC module 7；Pass through analog simulation mould
Block 8 carries out emulation study to electrical equipment using simulation software；Plate is examined electrically to know student using circuit by evaluation module 9
Knowledge carries out examination operation；Then, the instructional video of memory storage acquisition and the religion of network are utilized by data memory module 10
Learn resource；Finally, the religion of the instructional video, network of tutoring system interface and acquisition is shown using display by display module 11
Learn resource.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (5)
1. a kind of electric automatization based on PLC controls education informations processing method, which is characterized in that the electricity based on PLC
Gas automation control education informations processing method includes:
Step 1 is worked normally by PLC single-chip computer control system；It is controlled at education informations for the electric automatization based on PLC
Manage system power supply；
Step 2 records content of courses image data by using the image pick-up device of algorithm for image enhancement；It is controlled by operation button
The electronic equipment of teaching；WEB server, which is connected, by network interface obtains network teaching resource；It is carried out by exchange software a pair of
One exchange；
Step 3 carries out emulation study to electrical equipment by simulation software；By circuit examine plate to the electrical knowledge of student into
Row examination operation；
Step 4 passes through the instructional video of the memory storage acquisition based on Simulink model and the teaching resource of network；It is logical
Cross based on non-local mean filtering temporal high pass filter Nonuniformity Correction processing display show tutoring system interface and
The teaching resource of the instructional video of acquisition, network.
2. the electric automatization based on PLC controls education informations processing method as described in claim 1, which is characterized in that institute
Step 2 is stated by using the image pick-up device of algorithm for image enhancement, carries out image filtering using tangent function and traditional method of indicating the pronunciation of a Chinese character function, specifically
Algorithm are as follows:
(1) normalizing complementary operation is carried out using following formula for original image, obtains the normalizing complement picture of original image:
Wherein, f is the gray value of original pixels, and M is maximum gradation value.M=256 herein is that the maximum value 255 of pixel grey scale adds
1, it is ensured that the pixel value of normalizing complement picture section (0,1] on；
(2) it is filtered using following formula:
Wherein, a tan () is arctan function:
X (i, j) indicates that the image pixel obtained by arctan function, y (i, j) represent the image slices obtained after filtering processing
Element；
(3) enhanced normalizing complement picture is obtained using following formula:
Tan () is tangent function in formula:
It represents normalizing and mends image pixel, average (i, j) is in original image in pixel f (i, j) surrounding n × n neighborhood
The arithmetic mean of instantaneous value of grey scale pixel value, it represents the gray value in region locating for pixel f (i, j).
(4) enhanced image is obtained using following formula:
F (i, j) represents image pixel after enhancing.
3. the electric automatization based on PLC controls education informations processing method as described in claim 1, which is characterized in that institute
It states step 4 and passes through the memory based on Simulink model, concrete model are as follows:
The signal sampling of the teaching resource of the instructional video and network of acquisition are as follows:
In formula: x (t) indicates the signal of the instructional video of acquisition and the teaching resource of network；xs(t) letter after ideal is indicated
Number；The quantization encoding of the teaching resource of the instructional video and network of n acquisition can be described with following formula:
In formula: QnFor quantization level, round () indicates to be rounded.
4. it is a kind of realize the electric automatization described in claim 1 based on PLC control education informations processing method based on PLC's
Electric automatization controls Teaching Information Processing System, which is characterized in that the electric automatization based on PLC controls education informations
Processing system includes:
Power supply module is connect with central control module, for controlling Teaching Information Processing System for the electric automatization based on PLC
Power supply；
Photographing module is connect with central control module, for recording content of courses image data by image pick-up device；
Operation module is connect with central control module, for the electronic equipment by operation button control teaching；
Central control module, with power supply module, photographing module, operation module, network communication module, AC module, analog simulation
Module, evaluation module, data memory module, display module connection, for controlling the normal work of modules by PLC single-chip microcontroller
Make；
Network communication module is connect with central control module, WEB server, is obtained for connecting WEB server by network interface
Take network teaching resource；
AC module is connect with central control module, for carrying out one-to-one exchange by exchange software；
Analog simulation module, connect with central control module, for carrying out emulation study to electrical equipment by simulation software；
Evaluation module is connect with central control module, for examining plate to carry out examination operation to the electrical knowledge of student by circuit；
Data memory module is connect with central control module, the instructional video and network for being acquired by memory storage
Teaching resource；
Display module is connect with central control module, for showing that the teaching of tutoring system interface and acquisition regards by display
Frequently, the teaching resource of network.
5. a kind of electric automatization using described in claims 1 to 3 any one based on PLC controls education informations processing method
Intelligent terminal.
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