CN116719271A - Remote data monitoring system for PLC controller - Google Patents

Remote data monitoring system for PLC controller Download PDF

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Publication number
CN116719271A
CN116719271A CN202310976425.5A CN202310976425A CN116719271A CN 116719271 A CN116719271 A CN 116719271A CN 202310976425 A CN202310976425 A CN 202310976425A CN 116719271 A CN116719271 A CN 116719271A
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plc controller
plc
response
period
monitoring
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CN116719271B (en
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罗宏
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Shenzhen Wellauto Technology Co ltd
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Shenzhen Wellauto Technology Co ltd
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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
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/058—Safety, monitoring
    • 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
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14006—Safety, monitoring in general
    • 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]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention relates to the technical field of remote monitoring of controllers, in particular to a remote data monitoring system for a PLC controller, which comprises the following components: the system comprises a controller response analysis module, a controller interface analysis module, a controller display analysis module, a remote data analysis module and an execution terminal. By monitoring and analyzing the response parameters of the corresponding issued instructions of the PLC controller and analyzing the response quality inspection values of the corresponding set monitoring time periods of the PLC controller, the reliability and the accuracy of the maintenance data analysis of the corresponding set monitoring time periods of the PLC controller can be improved, the timeliness of the response failure analysis of the PLC controller is improved to a great extent, and the reliability and the stability of the PLC controller are improved to the greatest extent.

Description

Remote data monitoring system for PLC controller
Technical Field
The invention relates to the technical field of remote monitoring of controllers, in particular to a remote data monitoring system for a PLC (programmable logic controller).
Background
A PLC is a digital computer used in industrial automation control systems. The method has the advantages of programmability, reliability and flexibility, and is widely applied to various automatic control fields. The operation of the PLC is closely related to the operation of each device, so the remote data monitoring of the PLC has profound significance.
At present, the monitoring of the PLC controller generally monitors the operation condition of the controller in a set period by manpower, so that corresponding operation is executed, and the operation efficiency and the operation reliability of the controller cannot be known in time due to certain subjectivity of the manual monitoring.
Disclosure of Invention
The invention aims to provide a remote data monitoring system for a PLC (programmable logic controller) to solve the defects of one-sided performance and singleness of monitoring results of the PLC in the prior art and greatly improve the operation efficiency and the operation reliability of the PLC.
The aim of the invention can be achieved by the following technical scheme:
the controller response analysis module is used for acquiring an issuing instruction set of the PLC controller corresponding to the set monitoring period, monitoring response parameters issued each time in the PLC controller corresponding to the set monitoring period to obtain response parameters of the PLC controller corresponding to the issuing instruction, wherein the response parameters comprise response switch numbers, response switch states and response time durations issued each time, and analyzing response quality inspection values of the PLC controller corresponding to the set monitoring period to obtain response quality inspection values of the PLC controller corresponding to the set monitoring period.
As a further improvement of the invention, the response parameters issued each time in the monitoring period are correspondingly set by the PLC controller, and the specific monitoring mode is as follows:
extracting the operation switch numbers and the operation switch states of the corresponding setting monitoring time periods of the PLC from the issuing instruction sets of the corresponding setting monitoring time periods of the PLC, and obtaining the operation switch numbers and the operation switch states of the corresponding setting monitoring time periods of the PLC;
obtaining response switch numbers and response switch states of each release of the PLC corresponding to the set monitoring period, and obtaining response switch numbers and response switch states of each release of the PLC corresponding to the set monitoring period;
acquiring release time points of each release of the PLC corresponding to the set monitoring period, acquiring execution time points of each release of the PLC corresponding to the set monitoring period, and further differentiating the release time points of each release of the PLC corresponding to the set monitoring period from the corresponding execution time points to obtain response time of each release of the PLC corresponding to the set monitoring period;
and the response switch numbers, the response switch states and the response time length of each release of the monitoring period are correspondingly set by the PLC controller to form response parameters of the corresponding release instructions of the PLC controller.
As a further improvement of the invention, the response quality inspection value of the PLC controller corresponding to the set monitoring period is analyzed in the following specific analysis mode:
matching the response switch number of each release of the monitoring period corresponding to the PLC controller with the operation switch number of the corresponding release, if the response switch number of a certain release is successfully matched with the operation switch number of the corresponding release, marking the release as number matching release, otherwise marking the release as number abnormal release, and counting the number matching release times and number abnormal release times of the PLC controller corresponding to the set monitoring period;
matching the response switch state of each release of the PLC controller corresponding to the set monitoring period with the operation switch state of the corresponding release, if the response switch state of a certain release is successfully matched with the operation switch state of the corresponding release, marking the release as state matching release, otherwise marking the release as state abnormal release, and counting the state matching release times and state abnormal release times of the PLC controller corresponding to the set monitoring period;
the numerical values of the number matching release times, the number abnormal release times, the state matching release times and the state abnormal release times of the monitoring period corresponding to the setting of the PLC are extracted and respectively marked as BP, BY, ZP and ZY;
calculating the average response time length of the PLC corresponding to the set monitoring time period based on the response time length of each release of the PLC corresponding to the set monitoring time period, obtaining the average response time length of the PLC corresponding to the set monitoring time period, and marking the average response time length as PT;
comparing the response time length of each release of the PLC controller corresponding to the set monitoring time period with the set reference response time length, if the response time length of a certain release is longer than the set reference response time length, marking the release as abnormal response, otherwise marking the release as normal response, counting the abnormal response times and the normal response times of the PLC controller corresponding to the set monitoring time period, extracting the values of the abnormal response times and the normal response times, and marking the values as YX and ZX respectively;
according to formula xz=log 2 (1+BP×a1+ZP×a2) + (1/BY) ×a3+ (1/ZY) ×a4) calculating the response accuracy XZ of the PLC controller corresponding to the set monitoring period, and a1, a2, a3, a4 are respectively expressed as set weight factors;
according to the formula xj= (PT 0 The response timeliness XJ, PT of the PLC controller corresponding to the set monitoring period is calculated by/(PT+1))Xa5+ (1/YX) Xa6+ZX×a7 0 A5, a6 and a7 are respectively expressed as set weight factors;
and calculating response quality inspection values ZJ of the PLC controller corresponding to the set monitoring period according to the formula ZJ=XZ×a8+XJ×a9, wherein a8 and a9 are respectively expressed as set weight factors.
The controller interface analysis module is used for monitoring the interface parameters of the PLC controller corresponding to the set monitoring time period to obtain the interface parameters of the PLC controller corresponding to the set monitoring time period, wherein the interface parameters comprise the number of dirty positions, dirty areas, the number of normal interfaces and the number of poor contact interfaces of each interface at a target time point, and analyzing the interface quality inspection values of the PLC controller corresponding to the set monitoring time period to obtain the interface quality inspection values of the PLC controller corresponding to the set monitoring time period.
As a further improvement of the invention, the interface parameters of the PLC controller corresponding to the set monitoring period are monitored, and the specific monitoring mode is as follows:
dividing the set monitoring period into monitoring time points according to time points, and extracting a non-monitoring time point from the monitoring time points as a target time point;
acquiring apparent images of all interfaces of the PLC corresponding to the target time point through a camera to obtain apparent images of all interfaces of the PLC corresponding to the target time point;
extracting the quantity of the dirt positions corresponding to the interfaces from the apparent images of the interfaces corresponding to the target time points of the PLC controller, and obtaining the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller to obtain the quantity of the dirt positions of the interfaces corresponding to the target time points of the PLC controller and the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller, and further summing the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller to obtain the dirt areas of the interfaces corresponding to the target time points of the PLC controller;
detecting the current of each interface in each monitoring time point in the corresponding setting monitoring time period of the PLC controller through the electric leakage detector to obtain the current of each interface in each monitoring time point in the corresponding setting monitoring time period of the PLC controller, comparing the current with a set current threshold, if the current of a certain interface is larger than the set current threshold, marking the interface as a poor contact interface, otherwise, marking the interface as a normal interface, further counting the number of poor contact interfaces and the number of normal interfaces of each monitoring time point in the corresponding setting monitoring time period of the PLC controller, and extracting the number of the maximum poor contact interface from the number of the poor contact interfaces and the number of the normal interfaces of each monitoring time point in the corresponding setting monitoring time period of the PLC controller as the number of the poor contact interfaces of the corresponding setting monitoring time period of the PLC controller, and further obtaining the number of the normal interfaces corresponding to the number of the maximum poor contact interface as the number of the normal interfaces of the corresponding setting monitoring time period of the PLC controller, thereby obtaining the number of the normal interfaces and the number of the poor contact interfaces of the normal interfaces of the corresponding setting monitoring time period of the PLC controller;
the PLC controller corresponds to the number of the dirt positions and the dirt areas of each interface of the target time point, and the PLC controller corresponds to the number of the normal interfaces and the number of the bad contact interfaces of the set monitoring period.
As a further improvement of the invention, the interface quality inspection value of the PLC controller corresponding to the set monitoring period is analyzed in the following specific analysis modes:
the method comprises the steps that the number of dirt positions and the dirt area of each interface of a PLC (programmable logic controller) corresponding to a target time point in interface parameters of a monitoring period corresponding to the PLC are calculated, and an interface sound value KZ of the PLC corresponding to the target time point is obtained through analysis;
the method comprises the steps that the number of normal interfaces and poor contact interfaces of the monitoring period corresponding to the PLC are obtained from interface parameters of the monitoring period corresponding to the PLC, and interface leakage value KL of the monitoring period corresponding to the PLC is obtained through analysis;
and calculating interface quality inspection values JZ of the PLC controller corresponding to the set monitoring period according to a formula JZ= (1/KZ) xb5+ (1/KL) xb 6, wherein b5 and b6 are respectively expressed as set weight values.
The controller display analysis module is used for monitoring the display parameters of the PLC controller corresponding to the set monitoring time period to obtain the display parameters of the PLC controller corresponding to the set monitoring time period, wherein the display parameters comprise the screen flicker times and the screen shielding area of the display screen, and analyzing the display quality inspection value of the PLC controller corresponding to the set monitoring time period to obtain the display quality inspection value of the PLC controller corresponding to the set monitoring time period.
As a further improvement of the invention, the display parameters of the PLC controller corresponding to the set monitoring period are monitored, and the specific monitoring mode is as follows:
monitoring operation videos of the display screen in the corresponding set monitoring period of the PLC controller through the camera to obtain the operation videos of the display screen in the corresponding set monitoring period of the PLC controller, and counting the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller to obtain the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller;
analyzing the operation video of the display screen in the corresponding set monitoring period of the PLC controller frame by frame to obtain the operation image of the display screen of each monitoring time point in the corresponding set monitoring period of the PLC controller, wherein the operation image is used as the screen image of the display screen of each monitoring time point in the corresponding set monitoring period of the PLC controller;
extracting screen shielding areas of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period from screen images of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period, and obtaining the screen shielding areas of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period;
extracting the maximum screen shielding area from the screen shielding areas of the display screen corresponding to each monitoring time point in the set monitoring time period by the PLC controller, and taking the maximum screen shielding area as the screen shielding area of the display screen corresponding to the set monitoring time period by the PLC controller;
the display parameters of the monitoring period are correspondingly set by the PLC controller, wherein the screen flicker times and the screen shielding area of the display screen in the monitoring period are correspondingly set by the PLC controller.
As a further improvement of the invention, the display quality inspection value of the PLC controller corresponding to the set monitoring period is analyzed in the following specific analysis modes:
extracting the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller from the display parameters of the corresponding set monitoring period of the PLC controller, and extracting the screen shielding area of the display screen in the corresponding set monitoring period of the PLC controller from the display parameters of the corresponding set monitoring period of the PLC controller;
and obtaining the display quality inspection value of the PLC controller corresponding to the set monitoring period through analysis.
And the remote data analysis module is used for analyzing the maintenance data of the PLC controller corresponding to the set monitoring period based on the response quality inspection value, the interface quality inspection value and the display quality inspection value of the PLC controller corresponding to the set monitoring period to obtain the maintenance data of the PLC controller corresponding to the set monitoring period.
As a further improvement of the invention, the maintenance data of the monitoring period corresponding to the setting of the PLC is analyzed, and the specific analysis mode is as follows:
comparing the response quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference response quality inspection value, and if the response quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference response quality inspection value, taking the response corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period;
comparing the interface quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference interface quality inspection value, and taking the interface corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period if the interface quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference interface quality inspection value;
and comparing the display quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference display quality inspection value, and if the display quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference display quality inspection value, taking the display corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period.
And the execution terminal is used for executing corresponding operation based on the maintenance data of the monitoring period correspondingly set by the PLC.
The invention has the beneficial effects that:
according to the invention, the response parameters of the corresponding issued instructions of the PLC are monitored and analyzed, and the response quality inspection value of the corresponding set monitoring period of the PLC is analyzed, so that the reliability and the accuracy of the maintenance data analysis of the corresponding set monitoring period of the PLC can be improved, the timeliness of the response failure analysis of the PLC is improved to a great extent, and the reliability and the stability of the PLC are improved to the greatest extent.
According to the invention, the interface parameters of the monitoring period corresponding to the PLC are monitored and analyzed, and the interface quality inspection value of the monitoring period corresponding to the PLC is analyzed, so that the stability and accuracy of data transmission can be effectively monitored, the possibility of data loss is further reduced, and meanwhile, the equipment operation fault caused by hardware facilities is avoided to a certain extent.
According to the invention, the display parameters of the PLC controller corresponding to the set monitoring time period are monitored and analyzed, and the display quality inspection value of the PLC controller corresponding to the set monitoring time period is analyzed, so that the situation that the running state of the controller is not clear enough due to the display fault of the PLC controller is avoided to a great extent, and the stable running of the PLC controller is further improved.
According to the invention, the maintenance data of the PLC controller in the corresponding set monitoring period are analyzed, so that the maintenance data of the PLC controller can be reflected rapidly and intuitively, reliable data support is provided for maintenance personnel, the time cost increase caused by maintenance failure is avoided, and the remote data monitoring system of the PLC controller has more practical significance.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a system block diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention is a remote data monitoring system for a PLC controller, comprising: the system comprises a controller response analysis module, a controller interface analysis module, a controller display analysis module, a remote data analysis module and an execution terminal.
The controller response analysis module acquires an issuing instruction set of the PLC controller corresponding to a set monitoring period, monitors response parameters issued each time in the PLC controller corresponding to the set monitoring period, and obtains response parameters of the PLC controller corresponding to the issuing instruction, wherein the response parameters comprise response switch numbers, response switch states and response time durations issued each time, and the specific monitoring steps are as follows:
extracting the operation switch numbers and the operation switch states of the corresponding setting monitoring time periods of the PLC from the issuing instruction sets of the corresponding setting monitoring time periods of the PLC, and obtaining the operation switch numbers and the operation switch states of the corresponding setting monitoring time periods of the PLC; wherein the switch state is an open state and a closed state;
obtaining response switch numbers and response switch states of each release of the PLC corresponding to the set monitoring period, and obtaining response switch numbers and response switch states of each release of the PLC corresponding to the set monitoring period;
acquiring release time points of each release of the PLC corresponding to the set monitoring period, acquiring execution time points of each release of the PLC corresponding to the set monitoring period, and further differentiating the release time points of each release of the PLC corresponding to the set monitoring period from the corresponding execution time points to obtain response time of each release of the PLC corresponding to the set monitoring period;
and the response switch numbers, the response switch states and the response time length of each release of the monitoring period are correspondingly set by the PLC controller to form response parameters of the corresponding release instructions of the PLC controller.
Analyzing the response quality inspection value of the PLC controller corresponding to the set monitoring period to obtain the response quality inspection value of the PLC controller corresponding to the set monitoring period, wherein the specific analysis steps are as follows:
matching the response switch number of each release of the monitoring period corresponding to the PLC controller with the operation switch number of the corresponding release, if the response switch number of a certain release is successfully matched with the operation switch number of the corresponding release, marking the release as number matching release, otherwise marking the release as number abnormal release, and counting the number matching release times and number abnormal release times of the PLC controller corresponding to the set monitoring period;
matching the response switch state of each release of the PLC controller corresponding to the set monitoring period with the operation switch state of the corresponding release, if the response switch state of a certain release is successfully matched with the operation switch state of the corresponding release, marking the release as state matching release, otherwise marking the release as state abnormal release, and counting the state matching release times and state abnormal release times of the PLC controller corresponding to the set monitoring period;
the numerical values of the number matching release times, the number abnormal release times, the state matching release times and the state abnormal release times of the monitoring period corresponding to the setting of the PLC are extracted and respectively marked as BP, BY, ZP and ZY;
calculating the average response time length of the PLC corresponding to the set monitoring time period based on the response time length of each release of the PLC corresponding to the set monitoring time period, obtaining the average response time length of the PLC corresponding to the set monitoring time period, and marking the average response time length as PT;
comparing the response time length of each release of the PLC controller corresponding to the set monitoring time period with the set reference response time length, if the response time length of a certain release is longer than the set reference response time length, marking the release as abnormal response, otherwise marking the release as normal response, counting the abnormal response times and the normal response times of the PLC controller corresponding to the set monitoring time period, extracting the values of the abnormal response times and the normal response times, and marking the values as YX and ZX respectively;
according to formula xz=log 2 (1+BP×a1+ZP×a2) + (1/BY) ×a3+ (1/ZY) ×a4) calculating the response accuracy XZ of the PLC controller corresponding to the set monitoring period, and a1, a2, a3, a4 are respectively expressed as set weight factors;
according to the formula xj= (PT 0 The response timeliness XJ, PT of the PLC controller corresponding to the set monitoring period is calculated by/(PT+1))Xa5+ (1/YX) Xa6+ZX×a7 0 A5, a6 and a7 are respectively expressed as set weight factors;
and calculating response quality inspection values ZJ of the PLC controller corresponding to the set monitoring period according to the formula ZJ=XZ×a8+XJ×a9, wherein a8 and a9 are respectively expressed as set weight factors.
Preferably, the response parameters of the corresponding issued instructions of the PLC are monitored and analyzed, and the response quality inspection values of the corresponding set monitoring time periods of the PLC are analyzed, so that the reliability and the accuracy of the analysis of the maintenance data of the corresponding set monitoring time periods of the PLC can be improved, the timeliness of the response failure analysis of the PLC is improved to a great extent, and the reliability and the stability of the PLC are improved to the greatest extent.
The controller interface analysis module monitors interface parameters of the corresponding set monitoring period of the PLC controller to obtain the interface parameters of the corresponding set monitoring period of the PLC controller, wherein the interface parameters comprise the number of dirty positions, dirty areas, the number of normal interfaces and the number of bad contact interfaces of each interface at a target time point, and the specific monitoring steps are as follows:
dividing the set monitoring period into monitoring time points according to time points, and extracting a non-monitoring time point from the monitoring time points as a target time point;
acquiring apparent images of all interfaces of the PLC corresponding to the target time point through a camera to obtain apparent images of all interfaces of the PLC corresponding to the target time point;
extracting the quantity of the dirt positions corresponding to the interfaces from the apparent images of the interfaces corresponding to the target time points of the PLC controller, and obtaining the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller to obtain the quantity of the dirt positions of the interfaces corresponding to the target time points of the PLC controller and the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller, and further summing the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller to obtain the dirt areas of the interfaces corresponding to the target time points of the PLC controller;
detecting the current of each interface in each monitoring time point in the corresponding setting monitoring time period of the PLC controller through the electric leakage detector to obtain the current of each interface in each monitoring time point in the corresponding setting monitoring time period of the PLC controller, comparing the current with a set current threshold, if the current of a certain interface is larger than the set current threshold, marking the interface as a poor contact interface, otherwise, marking the interface as a normal interface, further counting the number of poor contact interfaces and the number of normal interfaces of each monitoring time point in the corresponding setting monitoring time period of the PLC controller, and extracting the number of the maximum poor contact interface from the number of the poor contact interfaces and the number of the normal interfaces of each monitoring time point in the corresponding setting monitoring time period of the PLC controller as the number of the poor contact interfaces of the corresponding setting monitoring time period of the PLC controller, and further obtaining the number of the normal interfaces corresponding to the number of the maximum poor contact interface as the number of the normal interfaces of the corresponding setting monitoring time period of the PLC controller, thereby obtaining the number of the normal interfaces and the number of the poor contact interfaces of the normal interfaces of the corresponding setting monitoring time period of the PLC controller;
the PLC controller corresponds to the number of the dirt positions and the dirt areas of each interface of the target time point, and the PLC controller corresponds to the number of the normal interfaces and the number of the bad contact interfaces of the set monitoring period.
Analyzing the interface quality inspection value of the PLC controller corresponding to the set monitoring period to obtain the interface quality inspection value of the PLC controller corresponding to the set monitoring period, wherein the specific analysis steps are as follows:
slave PLC controller pairThe number of the dirty positions and the dirty areas of the interfaces corresponding to the target time points of the PLC in the interface parameters of the monitoring period are set and respectively recorded as N i And S is i I is the number of each interface; i=1, 2,..n, n represents the total number of interfaces and n takes on a positive integer.
The number of the normal interfaces and the number of the bad interfaces of the monitoring period are correspondingly set by the PLC from the interface parameters of the monitoring period correspondingly set by the PLC, and the number is recorded as ZK and BK;
according to the formulaCalculating interface response values KZ of a PLC controller corresponding to a target time point, wherein b1 and b2 are respectively expressed as set influence factors;
according to the formulaCalculating interface leakage value KL of the PLC corresponding to the set monitoring period, wherein b3 and b4 are respectively expressed as set weight factors;
and calculating interface quality inspection values JZ of the PLC controller corresponding to the set monitoring period according to a formula JZ= (1/KZ) xb5+ (1/KL) xb 6, wherein b5 and b6 are respectively expressed as set weight values.
Preferably, the invention monitors and analyzes the interface parameters of the monitoring period corresponding to the PLC controller, and analyzes the interface quality inspection value of the monitoring period corresponding to the PLC controller, so that the stability and accuracy of data transmission can be effectively monitored, the possibility of data loss is further reduced, and meanwhile, the equipment operation fault caused by hardware facilities is avoided to a certain extent.
The controller display analysis module monitors display parameters of the PLC controller corresponding to the set monitoring time period to obtain the display parameters of the PLC controller corresponding to the set monitoring time period, wherein the display parameters comprise screen flicker times and screen shielding areas of a display screen, and the specific monitoring steps are as follows:
monitoring operation videos of the display screen in the corresponding set monitoring period of the PLC controller through the camera to obtain the operation videos of the display screen in the corresponding set monitoring period of the PLC controller, and counting the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller to obtain the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller;
analyzing the operation video of the display screen in the corresponding set monitoring period of the PLC controller frame by frame to obtain the operation image of the display screen of each monitoring time point in the corresponding set monitoring period of the PLC controller, wherein the operation image is used as the screen image of the display screen of each monitoring time point in the corresponding set monitoring period of the PLC controller;
extracting screen shielding areas of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period from screen images of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period, and obtaining the screen shielding areas of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period;
extracting the maximum screen shielding area from the screen shielding areas of the display screen corresponding to each monitoring time point in the set monitoring time period by the PLC controller, and taking the maximum screen shielding area as the screen shielding area of the display screen corresponding to the set monitoring time period by the PLC controller;
the display parameters of the monitoring period are correspondingly set by the PLC controller, wherein the screen flicker times and the screen shielding area of the display screen in the monitoring period are correspondingly set by the PLC controller.
Analyzing the display quality inspection value of the PLC controller corresponding to the set monitoring period to obtain the display quality inspection value of the PLC controller corresponding to the set monitoring period, wherein the specific analysis steps are as follows:
extracting the value of the screen flicker frequency of the display screen in the corresponding set monitoring period of the PLC controller from the display parameters of the corresponding set monitoring period of the PLC controller, marking as M, and extracting the value of the screen shielding area of the display screen in the corresponding set monitoring period of the PLC controller from the display parameters of the corresponding set monitoring period of the PLC controller, and marking as MJ;
and calculating display quality inspection values SJ of the PLC controller corresponding to the set monitoring period according to a formula SJ= (1/M) xc1+ (1/MJ) xc 2, wherein c1 and c2 are respectively expressed as set weight factors.
Preferably, the display parameters of the monitoring period are correspondingly set by the PLC controller, and the display quality inspection values of the monitoring period are correspondingly set by the PLC controller are analyzed, so that the situation that the running state of the controller is not clear enough due to the display failure of the PLC controller is avoided to a great extent, and the stable running of the PLC controller is further improved.
The remote data analysis module analyzes the maintenance data of the PLC controller corresponding to the set monitoring period based on the response quality inspection value, the interface quality inspection value and the display quality inspection value of the PLC controller corresponding to the set monitoring period to obtain the maintenance data of the PLC controller corresponding to the set monitoring period, and the specific analysis steps are as follows:
comparing the response quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference response quality inspection value, and if the response quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference response quality inspection value, taking the response corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period;
comparing the interface quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference interface quality inspection value, and taking the interface corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period if the interface quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference interface quality inspection value;
and comparing the display quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference display quality inspection value, and if the display quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference display quality inspection value, taking the display corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period.
Preferably, the maintenance data of the PLC controller can be rapidly and intuitively reflected by analyzing the maintenance data of the corresponding set monitoring period of the PLC controller, reliable data support is provided for maintenance personnel, the time cost increase caused by maintenance failure is avoided, and the remote data monitoring system of the PLC controller has more practical significance.
The execution terminal executes corresponding operation based on the maintenance data of the monitoring period correspondingly set by the PLC controller.
In a specific embodiment, if the maintenance data corresponding to the set monitoring period of the PLC controller is a response corresponding to the PLC controller, the corresponding display is performed on the remote display terminal, for example: the response accuracy and the response timeliness corresponding to the PLC have faults, and the response accuracy and the response timeliness corresponding to the PLC need to be overhauled correspondingly in time.
If the maintenance data corresponding to the set monitoring period of the PLC controller is an interface corresponding to the PLC controller, the remote display terminal performs corresponding display, for example: the interface corresponding to the PLC has the conditions of stains and electric leakage, and maintenance personnel are required to perform corresponding maintenance in time.
If the maintenance data corresponding to the set monitoring period of the PLC controller is a display corresponding to the PLC controller, the remote display terminal performs a corresponding display, for example: "the display corresponding to the PLC controller has a fault, and the corresponding maintenance is carried out on the display corresponding to the PLC controller at time.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.

Claims (8)

1. A remote data monitoring system for a PLC controller, comprising:
the controller response analysis module is used for acquiring an issuing instruction set of the PLC controller corresponding to the set monitoring period, monitoring response parameters issued each time in the PLC controller corresponding to the set monitoring period to obtain response parameters of the issuing instructions of the PLC controller, wherein the response parameters comprise response switch numbers, response switch states and response time durations issued each time, and analyzing response quality inspection values of the PLC controller corresponding to the set monitoring period to obtain response quality inspection values of the PLC controller corresponding to the set monitoring period;
the controller interface analysis module is used for monitoring the interface parameters of the PLC controller corresponding to the set monitoring time period to obtain the interface parameters of the PLC controller corresponding to the set monitoring time period, wherein the interface parameters comprise the number of dirty positions, dirty areas, the number of normal interfaces and the number of poor contact interfaces of each interface at a target time point, and analyzing the interface quality inspection values of the PLC controller corresponding to the set monitoring time period to obtain the interface quality inspection values of the PLC controller corresponding to the set monitoring time period;
the controller display analysis module is used for monitoring the display parameters of the PLC controller corresponding to the set monitoring time period to obtain the display parameters of the PLC controller corresponding to the set monitoring time period, wherein the display parameters comprise the screen flicker times and the screen shielding area of the display screen, and analyzing the display quality inspection value of the PLC controller corresponding to the set monitoring time period to obtain the display quality inspection value of the PLC controller corresponding to the set monitoring time period;
the remote data analysis module is used for analyzing the maintenance data of the PLC controller corresponding to the set monitoring period based on the response quality inspection value, the interface quality inspection value and the display quality inspection value of the PLC controller corresponding to the set monitoring period to obtain the maintenance data of the PLC controller corresponding to the set monitoring period;
and the execution terminal is used for executing corresponding operation based on the maintenance data of the monitoring period correspondingly set by the PLC.
2. The remote data monitoring system for a PLC controller according to claim 1, wherein the monitoring of response parameters issued each time in the monitoring period is performed by the PLC controller in a specific monitoring manner:
extracting the operation switch numbers and the operation switch states of the corresponding setting monitoring time periods of the PLC from the issuing instruction sets of the corresponding setting monitoring time periods of the PLC, and obtaining the operation switch numbers and the operation switch states of the corresponding setting monitoring time periods of the PLC;
obtaining response switch numbers and response switch states of each release of the PLC corresponding to the set monitoring period, and obtaining response switch numbers and response switch states of each release of the PLC corresponding to the set monitoring period;
acquiring release time points of each release of the PLC corresponding to the set monitoring period, acquiring execution time points of each release of the PLC corresponding to the set monitoring period, and further differentiating the release time points of each release of the PLC corresponding to the set monitoring period from the corresponding execution time points to obtain response time of each release of the PLC corresponding to the set monitoring period;
and the response switch numbers, the response switch states and the response time length of each release of the monitoring period are correspondingly set by the PLC controller to form response parameters of the corresponding release instructions of the PLC controller.
3. The remote data monitoring system for a PLC controller according to claim 1, wherein the analyzing the response quality inspection value of the PLC controller corresponding to the set monitoring period is as follows:
matching the response switch number of each release of the monitoring period corresponding to the PLC controller with the operation switch number of the corresponding release, if the response switch number of a certain release is successfully matched with the operation switch number of the corresponding release, marking the release as number matching release, otherwise marking the release as number abnormal release, and counting the number matching release times and number abnormal release times of the PLC controller corresponding to the set monitoring period;
matching the response switch state of each release of the PLC controller corresponding to the set monitoring period with the operation switch state of the corresponding release, if the response switch state of a certain release is successfully matched with the operation switch state of the corresponding release, marking the release as state matching release, otherwise marking the release as state abnormal release, and counting the state matching release times and state abnormal release times of the PLC controller corresponding to the set monitoring period;
the numerical values of the number matching release times, the number abnormal release times, the state matching release times and the state abnormal release times of the monitoring period corresponding to the setting of the PLC are extracted and respectively marked as BP, BY, ZP and ZY;
calculating the average response time length of the PLC corresponding to the set monitoring time period based on the response time length of each release of the PLC corresponding to the set monitoring time period, obtaining the average response time length of the PLC corresponding to the set monitoring time period, and marking the average response time length as PT;
comparing the response time length of each release of the PLC controller corresponding to the set monitoring time period with the set reference response time length, if the response time length of a certain release is longer than the set reference response time length, marking the release as abnormal response, otherwise marking the release as normal response, counting the abnormal response times and the normal response times of the PLC controller corresponding to the set monitoring time period, extracting the values of the abnormal response times and the normal response times, and marking the values as YX and ZX respectively;
according to formula xz=log 2 (1+BP×a1+ZP×a2) + (1/BY) ×a3+ (1/ZY) ×a4) calculating the response accuracy XZ of the PLC controller corresponding to the set monitoring period, and a1, a2, a3, a4 are respectively expressed as set weight factors;
according to the formula xj= (PT 0 The response timeliness XJ, PT of the PLC controller corresponding to the set monitoring period is calculated by/(PT+1))Xa5+ (1/YX) Xa6+ZX×a7 0 A5, a6 and a7 are respectively expressed as set weight factors;
and calculating response quality inspection values ZJ of the PLC controller corresponding to the set monitoring period according to the formula ZJ=XZ×a8+XJ×a9, wherein a8 and a9 are respectively expressed as set weight factors.
4. The remote data monitoring system for a PLC controller according to claim 1, wherein the monitoring is performed on the interface parameters of the PLC controller corresponding to the set monitoring period, and the specific monitoring mode is:
dividing the set monitoring period into monitoring time points according to time points, and extracting a non-monitoring time point from the monitoring time points as a target time point;
acquiring apparent images of all interfaces of the PLC corresponding to the target time point through a camera to obtain apparent images of all interfaces of the PLC corresponding to the target time point;
extracting the quantity of the dirt positions corresponding to the interfaces from the apparent images of the interfaces corresponding to the target time points of the PLC controller, and obtaining the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller to obtain the quantity of the dirt positions of the interfaces corresponding to the target time points of the PLC controller and the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller, and further summing the dirt areas of the dirt positions of the interfaces corresponding to the target time points of the PLC controller to obtain the dirt areas of the interfaces corresponding to the target time points of the PLC controller;
detecting the current of each interface in each monitoring time point in the corresponding setting monitoring time period of the PLC controller through the electric leakage detector to obtain the current of each interface in each monitoring time point in the corresponding setting monitoring time period of the PLC controller, comparing the current with a set current threshold, if the current of a certain interface is larger than the set current threshold, marking the interface as a poor contact interface, otherwise, marking the interface as a normal interface, further counting the number of poor contact interfaces and the number of normal interfaces of each monitoring time point in the corresponding setting monitoring time period of the PLC controller, and extracting the number of the maximum poor contact interface from the number of the poor contact interfaces and the number of the normal interfaces of each monitoring time point in the corresponding setting monitoring time period of the PLC controller as the number of the poor contact interfaces of the corresponding setting monitoring time period of the PLC controller, and further obtaining the number of the normal interfaces corresponding to the number of the maximum poor contact interface as the number of the normal interfaces of the corresponding setting monitoring time period of the PLC controller, thereby obtaining the number of the normal interfaces and the number of the poor contact interfaces of the normal interfaces of the corresponding setting monitoring time period of the PLC controller;
the PLC controller corresponds to the number of the dirt positions and the dirt areas of each interface of the target time point, and the PLC controller corresponds to the number of the normal interfaces and the number of the bad contact interfaces of the set monitoring period.
5. The remote data monitoring system for a PLC controller according to claim 1, wherein the analyzing the interface quality inspection value of the PLC controller corresponding to the set monitoring period is performed by:
the method comprises the steps that the number of dirt positions and the dirt area of each interface of a PLC (programmable logic controller) corresponding to a target time point in interface parameters of a monitoring period corresponding to the PLC are calculated, and interface sound values of the PLC corresponding to the target time point are obtained through analysis;
the method comprises the steps that the number of normal interfaces and poor contact interfaces of the PLC corresponding to the set monitoring period are obtained from interface parameters of the PLC corresponding to the set monitoring period, and interface leakage values of the PLC corresponding to the set monitoring period are obtained through analysis;
and obtaining the interface quality inspection value of the PLC corresponding to the set monitoring period based on the comprehensive analysis of the interface stain response value and the interface leakage value of the PLC corresponding to the target time point.
6. The remote data monitoring system for a PLC controller according to claim 1, wherein the monitoring of the display parameter of the PLC controller corresponding to the set monitoring period is performed by:
monitoring operation videos of the display screen in the corresponding set monitoring period of the PLC controller through the camera to obtain the operation videos of the display screen in the corresponding set monitoring period of the PLC controller, and counting the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller to obtain the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller;
analyzing the operation video of the display screen in the corresponding set monitoring period of the PLC controller frame by frame to obtain the operation image of the display screen of each monitoring time point in the corresponding set monitoring period of the PLC controller, wherein the operation image is used as the screen image of the display screen of each monitoring time point in the corresponding set monitoring period of the PLC controller;
extracting screen shielding areas of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period from screen images of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period, and obtaining the screen shielding areas of the display screens of the PLC corresponding to the monitoring time points in the set monitoring time period;
extracting the maximum screen shielding area from the screen shielding areas of the display screen corresponding to each monitoring time point in the set monitoring time period by the PLC controller, and taking the maximum screen shielding area as the screen shielding area of the display screen corresponding to the set monitoring time period by the PLC controller;
the display parameters of the monitoring period are correspondingly set by the PLC controller, wherein the screen flicker times and the screen shielding area of the display screen in the monitoring period are correspondingly set by the PLC controller.
7. The remote data monitoring system for a PLC controller according to claim 1, wherein the analyzing the display quality inspection value of the PLC controller corresponding to the set monitoring period is performed by:
extracting the screen flicker times of the display screen in the corresponding set monitoring period of the PLC controller from the display parameters of the corresponding set monitoring period of the PLC controller, and extracting the screen shielding area of the display screen in the corresponding set monitoring period of the PLC controller from the display parameters of the corresponding set monitoring period of the PLC controller;
and obtaining the display quality inspection value of the PLC controller corresponding to the set monitoring period through analysis.
8. The remote data monitoring system for a PLC controller according to claim 1, wherein the analyzing the maintenance data of the PLC controller corresponding to the set monitoring period is performed by:
comparing the response quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference response quality inspection value, and if the response quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference response quality inspection value, taking the response corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period;
comparing the interface quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference interface quality inspection value, and taking the interface corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period if the interface quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference interface quality inspection value;
and comparing the display quality inspection value of the PLC controller corresponding to the set monitoring period with the set reference display quality inspection value, and if the display quality inspection value of the PLC controller corresponding to the set monitoring period is smaller than the reference display quality inspection value, taking the display corresponding to the PLC controller as maintenance data of the PLC controller corresponding to the set monitoring period.
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