CN103269345B - A kind of intelligent display device based on Modbus agreement and method - Google Patents
A kind of intelligent display device based on Modbus agreement and method Download PDFInfo
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- CN103269345B CN103269345B CN201310211373.9A CN201310211373A CN103269345B CN 103269345 B CN103269345 B CN 103269345B CN 201310211373 A CN201310211373 A CN 201310211373A CN 103269345 B CN103269345 B CN 103269345B
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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
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- 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
Based on intelligent display device and the method for Modbus agreement, this device comprises the PLC, master control set, bus driver, decoding/conversion driver, serioparallel exchange chip, coding chip, field effect chip, the LED display board that are arranged on industry spot; PLC connects the input of master control set, the data of the industry spot that PLC obtains transfer to the input of master control set by Modbus protocol format, the output of master control set connects the input of decoding/conversion driver, the output of decoding/conversion driver connects the input of the input of serioparallel exchange chip, the input of coding chip and field effect chip respectively, and the output of the output of serioparallel exchange chip, the output of coding chip and field effect chip is all connected to LED display board; The present invention uses industrial MODBUS protocol format to carry out transfer of data, can adjusting display brightness, shows multi-group data according to actual needs, has intelligent learning and judges warning function.The data display with intelligent decision that each large factories and miness are real-time can be applied to.
Description
Technical field
The invention belongs to Aulomatizeted Detect and control field, be specifically related to a kind of intelligent display device based on Modbus agreement and method.
Background technology
Emphasizing the thought guidance developed from rough type to intensive style at present, each factories and miness constantly improve the automation of production technology, some wherein on-the-spot data will be uploaded in real time and show, common display mode is that data upload is on industrial service device, server connects the data of display screen displaying scene, and this display mode needs network layout, also needs the relevant devices such as industrial service device simultaneously, cost is high, and data display is dumb.Another kind of mode is the data using digital wash displaying scene, but the brightness of digital wash display data is inadequate, show not obvious, display block count is few, be unfavorable for technical staff's remote observation, often group display data are few simultaneously, cannot adjust the size of displaying contents and display screen flexibly, not have intelligent learning and arbitration functions.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of intelligent display device based on Modbus agreement and method.
Technical scheme of the present invention is:
Based on an intelligent display device for Modbus agreement, comprise the PLC, master control set, bus driver, decoding/conversion driver, serioparallel exchange chip, coding chip, the field effect that are arranged on industry spot and account for sheet, LED display board;
Described PLC connects the input of master control set, the data of the industry spot that PLC obtains transfer to the input of master control set by Modbus protocol format, the output of master control set connects the input of decoding/conversion driver, the output of decoding/conversion driver connects the input of the input of serioparallel exchange chip, the input of coding chip and field effect chip respectively, and the output that serioparallel exchange accounts for the output of sheet, the output of coding chip and field effect chip is all connected to LED display board;
Described master control set is connected with Hanzi font library chip, searches for the some horizontal and vertical parity check code carrying out Chinese character.
Described master control set is connected with bus driver, for completing the data-driven of bus.
Described master control set connects toggle switch and wireless module respectively, and toggle switch, for selecting communication mode, comprises wireless mode and wired mode, and wireless module is for master control set during wireless mode and PERCOM peripheral communication.
Described master control set is connected with serial 232 turn of 485 interface, for carrying out 485 bus transfer.
Described master control set is connected with JTAG and downloads seat, and it is for completing download program to the download interface of master control set that JTAG downloads seat.
Described master control set connects MAX conversion chip.
Described master control set connects buzzer, and buzzer is for by the device of reporting to the police to abnormal data that pipes.
The method of the intelligent display device based on MODBUS agreement described in employing, is characterized in that: comprise the following steps:
Step 1:PLC gathers the data of industry spot;
The data of industry spot are transferred to master control set by Modbus protocol format by step 2:PLC;
Step 3: whether correctly adopt LRC verification to carry out verification msg: to be then data are stored as data set by class, no, then return step 1;
Step 4: the decision-making relation based on rough set is set up to the different types of data of the industry spot stored by class;
Step 4.1: lower aprons collection is set up to every class data set;
Step 4.1.1: the statistical average calculating such data set
wherein, x
ifor the data of such data centralization, i=1 ... N, N are the number of the data of such data centralization;
Step 4.1.2: each data x calculating such data centralization
iwith the statistical average of such data set
the absolute value of difference, obtain maximum value
Step 4.1.3: with interval
for the lower aprons collection of such data set;
Step 4.2: upper approximate set is set up to such data set, namely gets interval
or
for the upper approximate set of such data set;
Step 4.3: the probability that the probability of each data calculating this data centralization in upper approximate set and lower aprons are concentrated, the probability of each data in upper approximate intensive data is the coefficient of stability with the likelihood ratio in lower aprons intensive data;
Step 4.4: set up the decision-making relation based on rough set: if data are outside upper approximate set interval, then these data are abnormal data; If data are between upper approximate set and lower aprons collection or within lower aprons collection, then these data are normal data;
Step 5: according to the decision-making relation based on rough set set up, carries out decision-making to the data that Various types of data is concentrated: if data are normal data, then carry out data display by LED display board; If data are abnormal data, then judge whether the coefficient of stability of these data continues to be greater than 1 and more than 10 minutes, if so, then data constantly glimmered and carry out warning and display alarm picture, buzzer call simultaneously, otherwise carry out data display by LED display board.
Beneficial effect:
This device uses industrial conventional MODBUS protocol format to carry out transfer of data, can adjusting display brightness, shows multi-group data according to actual needs, has intelligent learning and judges warning function.The data display with intelligent decision that each large factories and miness are real-time can be applied to.In order to realize the content of inventing, first needing to solve the data transmission problems adopting MODBUS agreement to carry out, how adjusting display brightness, how to realize intelligent learning and judging warning function.
Accompanying drawing explanation
Fig. 1 is the intelligent display device structured flowchart based on Modbus agreement of the specific embodiment of the invention;
Fig. 2 is the master control set circuit theory diagrams of the specific embodiment of the invention;
Fig. 3 is the circuit theory diagrams of the LED display board of the specific embodiment of the invention;
Fig. 4 is the Intelligent display method flow chart based on Modbus agreement of the specific embodiment of the invention;
Fig. 5 is the MATLAB warning simulated effect figure of one embodiment of the present of invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As shown in Figure 1, based on the intelligent display device of Modbus agreement, comprise the PLC, master control set, bus driver, decoding/conversion driver, serioparallel exchange chip, coding chip, field effect chip, the LED display board that are arranged on industry spot;
The PLC being arranged on industry spot connects the input of master control set, the data of the industry spot that PLC obtains transfer to the input of master control set by Modbus protocol format, the output of master control set connects the input of decoding/conversion driver, the output of decoding/conversion driver connects the input of the input of serioparallel exchange chip, the input of coding chip and field effect chip respectively, and the output of the output of serioparallel exchange chip, the output of coding chip and field effect chip is all connected to LED display board;
Master control set is connected with the Hanzi font library chip that model is GT21L12S2W, searches for the some horizontal and vertical parity check code carrying out Chinese character.
Master control set is connected with the bus driver that model is 74HC245, for completing the data-driven of bus.
Master control set connects toggle switch BM and wireless module WXMK respectively, and toggle switch BM, for selecting communication mode, comprises wireless mode and wired mode, and wireless module WXMK is for master control set during wireless mode and PERCOM peripheral communication.
Master control set is connected with serial 232 turn of 485 interface, for carrying out 485 bus transfer.
Master control set is connected with JTAG and downloads seat (JTAGDownload downloads seat), it is for completing download program to the download interface of master control set that JTAG downloads seat, it is according to the electrical characteristic of jtag interface and the functional characteristic capable download interface designed in vain that this JTAG downloads seat, its volume is little, download flexible, by this download seat by download program in the ROM of single-chip microcomputer.
Master control set connects the MAX conversion chip that model is MAX491.
Master control set connects buzzer, and buzzer is for by the device of reporting to the police to abnormal data that pipes.
As shown in Figure 2, master control set adopts model to be the single-chip microcomputer of C8051F020, bus driver, decoding/conversion driver model are 74HC245, serioparallel exchange chip model is 74HC595, coding chip model is 74HC138, field effect chip model is ST4953,1,2,3, No. 4 pin of single-chip microcomputer C8051F020 downloads seat respectively 6,5,4, No. 3 pin with JTAGDownload are connected, No. 5 pin of single-chip microcomputer are that reseting pin is connected with reset output terminal No. 2 pin of reset chip 809S, complete electrification reset work.Single-chip microcomputer 26, No. 27 pin are connected with 22P ceramic disc capacitor with 11.0592M crystal oscillator, complete the clock concussion of chip.30 ~ No. 34 pins of single-chip microcomputer are linked to 14 ~ No. 18 pins of bus driver 74HC245, complete the data-driven of bus.42 ~ No. 49 pins of single-chip microcomputer are connected with 18 ~ No. 11 pin of decoding/conversion driver 74HC245 respectively, complete driving 74HC595 serioparallel exchange chip and 74HC138 decoding being accounted for sheet.Be connected with 1,2,5, No. 6 pin of the Hanzi font library chip GT21L12S2W respectively some horizontal and vertical parity check code of Chinese character of 51 ~ No. 54 pin of single-chip microcomputer is searched.60 ~ No. 62 pins of single-chip microcomputer are connected with 2,4, No. 5 pin of conversion chip MAX491, complete the transmission of 485 buses.61 and No. 62 pins of single-chip microcomputer are connected on toggle switch BM and wireless module WXMK.
LED display board adopts LED-SZ411588K anode lattice altogether, as shown in Figure 3, multi-disc decoding/conversion driver 74HC595 controls row display, and 74HC138 coding chip and field effect chip ST4953 control row display, and driving LED-SZ411588K altogether anode lattice shows.Carry out assembling according to actual needs carry out many group displays and expand display area freely.
The method of present embodiment utilizes grouped data to set up based on the decision-making relation of rough set and upper approximate set and lower aprons collection, each classification is considered as attribute, get the average of different attribute as attribute central value point, with the distance of decentre solstics and central value point for the closed interval that radius is formed is upper approximate set, the closed interval formed for radius with the half of the distance of decentre solstics and central value point is for lower aprons collection, if the data gathered, within the scope of lower aprons collection, think normal data, if image data is fallen between approximate set and lower aprons collection think fluctuation data (normal data), if image data is fallen outside approximate set, then think that abnormal data carries out alert process.
Adopt the method for the above-mentioned intelligent display device based on MODBUS agreement, comprise the following steps:
Step 1:PLC gathers the data of industry spot, comprises temperature, pressure and flow;
The data of industry spot are transferred to master control set by Modbus protocol format by step 2:PLC;
Step 3: whether correctly adopt LRC verification to carry out verification msg: to be then data are stored as data set by class, no, then return step 1;
Step 4: the decision-making relation based on rough set is set up to the different types of data of the industry spot stored by class;
Step 4.1: lower aprons collection is set up to every class data set;
Step 4.1.1: the statistical average calculating such data set
wherein, x
ifor the data of such data centralization, i=1 ... N, IV is the number of the data of such data centralization;
Step 4.1.2: each data x calculating such data centralization
iwith the statistical average of such data set
the absolute value of difference, obtain maximum value
Step 4.1.3: with interval
for the lower aprons collection of such data set;
Step 4.2: upper approximate set is set up to such data set, namely gets interval
or
for the upper approximate set of such data set;
Step 4.3: the probability that the probability of each data calculating this data centralization in upper approximate set and lower aprons are concentrated, the probability of each data in upper approximate intensive data is the coefficient of stability with the likelihood ratio in lower aprons intensive data;
Step 4.4: set up the decision-making relation based on rough set: if data are outside upper approximate set interval, then these data are abnormal data; If data are between upper approximate set and lower aprons collection or within lower aprons collection, then these data are normal data;
Step 5: according to the decision-making relation based on rough set set up, carries out decision-making to the data that Various types of data is concentrated: if data are normal data, then carry out data display by LED display board; If data are abnormal data, then judge whether the coefficient of stability of these data continues to be greater than 1 and more than 10 minutes, if so, then data constantly glimmered and carry out warning and display alarm picture, buzzer call simultaneously, otherwise carry out data display by LED display board.
One embodiment of the present of invention perform said method to certain industrial field data, wherein pressure data totally 1000, get the decision-making relation of front 500 data foundation based on rough set, the warning simulated effect obtained as shown in Figure 5, the data point of " o " shape is wherein abnormal data, through judging that the coefficient of stability obtaining these data continues to be greater than 1 and more than 10 minutes, all needs alert process.
Claims (9)
1. the intelligent display device based on Modbus agreement, comprise the PLC being arranged on industry spot, it is characterized in that: also comprise master control set, bus driver, decoding/conversion driver, serioparallel exchange chip, coding chip, field effect chip, LED display board;
The data of industry spot, for gathering the data of industry spot, are transferred to master control set by Modbus protocol format by PLC;
Whether master control set is correct for adopting LRC to verify to carry out verification msg: be stored as data set for correct data by class, and set up the decision-making relation based on rough set to the different types of data of the industry spot stored by class; Again according to the decision-making relation based on rough set set up, decision-making is carried out to the data that Various types of data is concentrated: if data are normal data, then carry out data display by LED display board; If data are abnormal data, then judge whether the coefficient of stability of these data continues to be greater than 1 and more than 10 minutes, if so, then data constantly glimmered and carry out warning and display alarm picture, otherwise carry out data display by LED display board;
Decision-making relation based on rough set is set up to the different types of data of the industry spot stored by class, specifically comprises:
Lower aprons collection is set up to every class data set: the statistical average first calculating such data set
calculate the absolute value of the difference of each data of such data centralization and the statistical average of such data set again, obtain maximum value D; With interval
for the lower aprons collection of such data set;
Upper approximate set is set up to such data set, namely gets interval
or
for the upper approximate set of such data set;
The probability that the probability of each data calculating this data centralization in upper approximate set and lower aprons are concentrated, the probability of each data in upper approximate intensive data is the coefficient of stability with the likelihood ratio in lower aprons intensive data;
Set up the decision-making relation based on rough set: if data are outside upper approximate set interval, then these data are abnormal data; If data are between upper approximate set and lower aprons collection or within lower aprons collection, then these data are normal data;
Described PLC connects the input of master control set, the data of the industry spot that PLC obtains transfer to the input of master control set by Modbus protocol format, the output of master control set connects the input of decoding/conversion driver, the output of decoding/conversion driver connects the input of the input of serioparallel exchange chip, the input of coding chip and field effect chip respectively, and the output of the output of serioparallel exchange chip, the output of coding chip and field effect chip is all connected to LED display board.
2. the intelligent display device based on Modbus agreement according to claim 1, is characterized in that: described master control set is connected with Hanzi font library chip, searches for the some horizontal and vertical parity check code carrying out Chinese character.
3. the intelligent display device based on Modbus agreement according to claim 1, is characterized in that: described master control set is connected with bus driver, for completing the data-driven of bus.
4. the intelligent display device based on Modbus agreement according to claim 1, it is characterized in that: described master control set connects toggle switch and wireless module respectively, toggle switch is for selecting communication mode, comprise wireless mode and wired mode, wireless module is for master control set during wireless mode and PERCOM peripheral communication.
5. the intelligent display device based on Modbus agreement according to claim 1, is characterized in that: described master control set is connected with serial 232 turn of 485 interface, for carrying out 485 bus transfer.
6. the intelligent display device based on Modbus agreement according to claim 1, is characterized in that: described master control set is connected with JTAG and downloads seat, and it is for completing download program to the download interface of master control set that JTAG downloads seat.
7. the intelligent display device based on Modbus agreement according to claim 1, is characterized in that: described master control set connects MAX conversion chip.
8. the intelligent display device based on Modbus agreement according to claim 1, is characterized in that: described master control set connects buzzer, and buzzer is for by the device of reporting to the police to abnormal data that pipes.
9. adopt the method for the intelligent display device based on Modbus agreement according to claim 1, it is characterized in that: comprise the following steps:
Step 1:PLC gathers the data of industry spot;
The data of industry spot are transferred to master control set by Modbus protocol format by step 2:PLC;
Step 3: whether correctly adopt LRC verification to carry out verification msg: to be then data are stored as data set by class, no, then return step 1;
Step 4: the decision-making relation based on rough set is set up to the different types of data of the industry spot stored by class;
Step 4.1: lower aprons collection is set up to every class data set;
Step 4.1.1: the statistical average calculating such data set
wherein, x
ifor the data of such data centralization, i=1 ... N, N are the number of the data of such data centralization;
Step 4.1.2: each data x calculating such data centralization
iwith the statistical average of such data set
the absolute value of difference, obtain maximum value
Step 4.1.3: with interval
for the lower aprons collection of such data set;
Step 4.2: upper approximate set is set up to such data set, namely gets interval
or
for the upper approximate set of such data set;
Step 4.3: the probability that the probability of each data calculating this data centralization in upper approximate set and lower aprons are concentrated, the probability of each data in upper approximate intensive data is the coefficient of stability with the likelihood ratio in lower aprons intensive data;
Step 4.4: set up the decision-making relation based on rough set: if data are outside upper approximate set interval, then these data are abnormal data; If data are between upper approximate set and lower aprons collection or within lower aprons collection, then these data are normal data;
Step 5: according to the decision-making relation based on rough set set up, carries out decision-making to the data that Various types of data is concentrated: if data are normal data, then carry out data display by LED display board; If data are abnormal data, then judge whether the coefficient of stability of these data continues to be greater than 1 and more than 10 minutes, if so, then data constantly glimmered and carry out warning and display alarm picture, buzzer call simultaneously, otherwise carry out data display by LED display board.
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| CN105759784B (en) * | 2016-02-04 | 2019-04-09 | 北京宇航系统工程研究所 | A kind of method for diagnosing faults based on DEA |
| CN112233613B (en) * | 2020-10-29 | 2021-08-06 | 中国航发南方工业有限公司 | Display panel assembly, display and operation device of gas turbine generator set |
| CN112289257B (en) * | 2020-10-29 | 2021-08-06 | 中国航发南方工业有限公司 | Display and operation device of gas turbine generator set |
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| CN1604091A (en) * | 2004-11-04 | 2005-04-06 | 上海交通大学 | Plastic forming process rule obtaining method based on numerical simulation and rough set algorithm |
| CN201242851Y (en) * | 2008-08-16 | 2009-05-20 | 武汉钢铁(集团)公司 | Industry network large screen |
| CN102611751A (en) * | 2012-03-19 | 2012-07-25 | 株洲科瑞变流电气有限公司 | High-power rectifier equipment on-line monitoring device based on web enterprise builder (WEB) |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1604091A (en) * | 2004-11-04 | 2005-04-06 | 上海交通大学 | Plastic forming process rule obtaining method based on numerical simulation and rough set algorithm |
| CN201242851Y (en) * | 2008-08-16 | 2009-05-20 | 武汉钢铁(集团)公司 | Industry network large screen |
| CN102611751A (en) * | 2012-03-19 | 2012-07-25 | 株洲科瑞变流电气有限公司 | High-power rectifier equipment on-line monitoring device based on web enterprise builder (WEB) |
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