Measuring element fault early warning method and device

Abstract

The invention provides a measuring element fault early warning method and device, and relates to the technical field of fault early warning, and when the method is executed by an analog quantity three-out algorithm block, the method comprises the following steps: obtaining analog quantity data collected by an analog quantity measuring element; determining a fault hidden danger state of the analog quantity measuring element according to the analog quantity data; wherein the fault hidden danger state is that the fault hidden danger exists or does not exist; when it is determined that the fault hidden danger state of the analog quantity measuring element is that the fault hidden danger exists, a fault hidden danger signal is generated and sent to the RS trigger, so that the RS trigger keeps a first state in response to the fault hidden danger signal, an alarm signal is generated according to the fault hidden danger signal and sent to the alarm module, and the alarm module gives an alarm according to the alarm signal. According to the application, the problem that when the measuring element has a fault hidden danger, the fault hidden danger is difficult to discover in time and then eliminate in time, and the system security risk of performing related control by depending on the analog quantity data of the measuring element is increased can be effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of fault warning, and in particular to a measuring element fault warning method and a measuring element fault warning device. Background Art

[0002] In automated control systems, various measuring elements are widely used to monitor relevant data to ensure the safe operation of the system. During the monitoring process, measuring elements may have problems such as component damage, corrosion of protective sleeves, aging or loosening of wiring, which will interfere with the measurement data, cause fluctuations or bad points, and thus affect the safe operation of the system.

[0003] In actual operation, measuring components are usually not judged as faulty instantly. Before a fault occurs, there may be multiple short-term data anomalies, and then they return to normal. Since relevant personnel need to monitor multiple screens and systems at the same time, a slight negligence may lead to failure to find problems in time, causing the measuring components to be in a "disease-infected" operating state, increasing the safety risk of the system that relies on its measurement data for related control. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a measuring element fault warning method and device to solve the problem in the prior art that when a measuring element has a hidden fault, it is difficult to detect it in time and then eliminate it in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control.

[0005] In order to achieve the above-mentioned object, the first aspect of the present application provides a measuring element failure early warning method, which is applied to a control system, wherein the control system comprises an analog quantity measuring element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, and the method is executed by the analog quantity three-centering algorithm block, and the method comprises: Acquiring analog quantity data collected by the analog quantity measuring element; Determine the potential fault state of the analog quantity measuring element according to the analog quantity data; wherein the potential fault state is the presence of a potential fault or the absence of a potential fault; When it is determined that the potential fault state of the analog quantity measuring element is that there is a potential fault, a potential fault signal is generated and sent to the RS trigger, so that the RS trigger maintains the first state in response to the potential fault signal, generates an alarm signal according to the potential fault signal and sends it to the alarm module, and the alarm module issues an alarm prompt according to the alarm signal; The first state indicates that the analog quantity measurement element has a potential fault, and both the potential fault signal and the alarm signal include relevant information corresponding to the analog quantity measurement element with the potential fault.

[0006] In the embodiment of the present application, the control system further includes a control module; the method further includes: According to the analog quantity data, target analog quantity data of the physical position of the analog quantity measuring element is determined, and the target analog quantity data is sent to the control module, so that the control module determines whether to perform a system protection operation according to the target analog quantity data.

[0007] In an embodiment of the present application, the control system further includes a data storage module; after determining the potential fault state of the analog quantity measurement element according to the analog quantity data, the method further includes: The analog quantity data and the potential fault status of the analog quantity measuring element are sent to the data storage module, and the data storage module performs data storage.

[0008] In order to achieve the above-mentioned object, the second aspect of the present application provides a measuring element failure early warning method, which is applied to a control system, wherein the control system comprises an analog quantity measuring element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, and the method is executed by the RS trigger, and the method comprises: In response to a potential fault signal received from the analog quantity three-centering algorithm block, a first state is maintained; wherein the first state indicates that a potential fault exists in the analog quantity measurement element; wherein the potential fault signal is generated by the analog quantity three-centering algorithm block based on determining that the potential fault state of the analog quantity measurement element is a potential fault; An alarm signal is generated according to the potential fault signal and sent to the alarm module, so that the alarm module issues an alarm prompt according to the alarm signal; wherein the alarm signal includes relevant information corresponding to the analog quantity measurement element with potential fault.

[0009] In an embodiment of the present application, the method further includes: In response to a reset signal received from the alarm module, the first state is switched to the second state; wherein the second state indicates that there is no hidden danger of failure in the analog quantity measuring element.

[0010] In order to achieve the above-mentioned object, the third aspect of the present application provides a measuring element failure early warning method, which is applied to a control system, wherein the control system comprises an analog quantity measuring element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, and the method is executed by the alarm module, and the method comprises: Acquire the alarm signal sent by the RS trigger; wherein the alarm signal is generated by the RS trigger according to the potential fault signal sent by the analog three-centering algorithm block; the potential fault signal is generated by the analog three-centering algorithm block determining that the potential fault state of the analog quantity measurement element is that there is a potential fault; wherein the potential fault signal and the alarm signal both contain relevant information corresponding to the analog quantity measurement element with the potential fault; An alarm prompt is given according to the alarm signal.

[0011] In an embodiment of the present application, the alarm module includes a display interface, and a reset button is provided in the display interface; the display interface is used to display relevant information corresponding to the analog quantity measurement element with potential faults; the reset button can be triggered by the operator to switch the RS trigger to the second state; wherein the second state indicates that the analog quantity measurement element has no potential faults; the method further includes: When the reset button is triggered, a reset signal is generated; The reset signal is sent to the RS trigger to switch the RS trigger from the first state to the second state; wherein the second state indicates that there is no hidden danger of failure of the analog quantity measuring element.

[0012] A fourth aspect of the present application provides a measuring element failure warning device, which is applied to a control system, wherein the control system comprises an analog quantity measuring element, an analog quantity three-centering algorithm block, an RS trigger, and an alarm module connected in sequence, wherein the device is configured in the analog quantity three-centering algorithm block, and comprises: An analog quantity data acquisition module, used to acquire the analog quantity data collected by the analog quantity measurement element; A fault potential state determination module, used to determine the fault potential state of the analog quantity measurement element according to the analog quantity data; wherein the fault potential state is the presence of a fault potential or the absence of a fault potential; The first measuring element fault warning module is used to generate a fault potential signal and send it to the RS trigger when it is determined that the fault potential state of the analog measuring element is a fault potential, so that the RS trigger maintains the first state in response to the fault potential signal, generates an alarm signal according to the fault potential signal and sends it to the alarm module, and the alarm module issues an alarm prompt according to the alarm signal.

[0013] The first state indicates that the analog quantity measurement element has a potential fault, and both the potential fault signal and the alarm signal include relevant information corresponding to the analog quantity measurement element with the potential fault.

[0014] A fifth aspect of the present application provides a measuring element failure early warning device, which is applied to a control system, wherein the control system comprises an analog quantity measuring element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, and the device is configured in the RS trigger, and the device comprises: The state adjustment module is used to maintain a first state in response to a potential fault signal received from the analog quantity three-centering algorithm block. The first state indicates that the analog quantity measurement element has a potential fault; wherein the potential fault signal is generated by the analog quantity three-centering algorithm block based on determining that the potential fault state of the analog quantity measurement element is a potential fault.

[0015] The second measuring element fault warning module is used to generate an alarm signal according to the potential fault signal and send it to the alarm module, so that the alarm module issues an alarm prompt according to the alarm signal; wherein the alarm signal contains relevant information corresponding to the analog measuring element with potential fault.

[0016] A sixth aspect of the present application provides a measuring element failure warning device, which is applied to a control system, wherein the control system comprises an analog quantity measuring element, an analog quantity three-centering algorithm block, an RS trigger, and an alarm module connected in sequence, wherein the device is configured in the alarm module, and the device comprises: An alarm signal acquisition module is used to acquire the alarm signal sent by the RS trigger; wherein the alarm signal is generated by the RS trigger according to the potential fault signal sent by the analog three-centering algorithm block; the potential fault signal is generated by the analog three-centering algorithm block determining that the potential fault state of the analog quantity measurement element is that there is a potential fault; wherein the potential fault signal and the alarm signal both contain relevant information corresponding to the analog quantity measurement element with a potential fault; The third measuring element failure warning module is used to issue an alarm prompt according to the alarm signal.

[0017] The measuring element failure warning method and device provided in the present application monitor the potential fault status of the analog quantity measuring element through the logic configuration judgment of the analog quantity three-centering algorithm block, and maintain the collected instantaneous abnormality through the RS trigger and output it as an alarm point, so that the alarm module can give an alarm prompt, so that relevant personnel can find problems in time, and then notify maintenance personnel to focus on checking and repair suspicious analog quantity measuring elements in time, so that the potential fault of the analog quantity measuring element can be eliminated in time in the embryonic stage, thereby ensuring the reliability and accuracy of the operation of the analog quantity measuring element, and thus improving the safety of the control system where the analog quantity measuring element is located.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings: Figure 1 A schematic diagram of a first process flow of a method for early warning of a failure of a measuring element according to an embodiment of the present application is shown; Figure 2 A schematic diagram of a second process flow of the measuring element failure early warning method according to an embodiment of the present application is shown; Figure 3 A third flow chart of the measuring element failure early warning method according to an embodiment of the present application is schematically shown; Figure 4 The alarm prompt diagram provided in the embodiment of the present application is schematically shown; Figure 5 A first structural block diagram of a measuring element failure warning device according to an embodiment of the present application is schematically shown; Figure 6 A second structural block diagram of the measuring element failure warning device according to an embodiment of the present application is schematically shown; Figure 7 A third structural block diagram of the measuring element failure early warning device according to an embodiment of the present application is schematically shown; Figure 8 The internal structure diagram of the computer device according to the embodiment of the present application is schematically shown.

[0020] Description of Reference Numerals A01-processor; A02-network interface; A03-internal memory; A04-display screen; A05-input device; A06-non-volatile storage medium; B01-operating system; B02-computer program. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0024] In view of the fact that in the related art, when a measuring element has a hidden danger of failure, it is difficult to be discovered in time and then to eliminate these hidden dangers in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control. The present application provides a measuring element failure warning method, device, equipment and medium. The measuring element failure warning method, device, equipment and medium provided by the present application are described in detail below in conjunction with the accompanying drawings through specific embodiments and implementation methods.

[0025] Figure 1 The first flow chart of the measuring element failure warning method according to the embodiment of the present application is schematically shown. Figure 1 As shown, in one embodiment of the present application, a measuring element fault warning method is provided, which is applied to a control system. The control system includes an analog measurement element, an analog three-centering algorithm block, an RS trigger and an alarm module connected in sequence. The method is executed by the analog three-centering algorithm block. The method may include the following steps.

[0026] Step A200, obtaining analog data collected by the analog measurement element.

[0027] Among them, analog quantity refers to a physical quantity that is continuous in time and value. In the control system, analog quantity includes temperature, pressure, flow, liquid level, etc. In specific applications, analog quantity can be collected through physical devices (such as temperature transmitters, pressure sensors), and transmitted to related devices (such as controllers) through analog signal lines.

[0028] It should be noted that in the embodiment of the present application, the analog measurement element, the analog three-centering algorithm block and the RS trigger connected in sequence together constitute a device group of the control system. One device group includes three analog measurement elements, and the physical positions of the three analog measurement elements are adjacent. Each analog measurement element included in the device group is connected to the analog three-centering algorithm block it contains, and the analog three-centering algorithm block performs subsequent operations according to the analog data collected by each analog measurement element at the same time.

[0029] Taking the desulfurization system as an example, three flue gas temperature measuring elements are arranged on the original flue (that is, the analog quantity is the flue gas temperature). Each flue gas temperature measuring element adopts a temperature transmitter and is physically adjacent to each other on the original flue. The temperature data collected by each flue gas temperature measuring element is sent to the analog quantity three-centering algorithm block connected to it.

[0030] It can be understood that the control system may include multiple device groups. When the control system includes multiple device groups, the analog three-centering algorithm block in each device group may execute all the steps mentioned in this embodiment.

[0031] Step A400: determining the potential fault status of the analog quantity measuring element according to the analog quantity data.

[0032] The potential fault status is that a potential fault exists or that a potential fault does not exist.

[0033] In the embodiment of the present application, the analog quantity three-centering algorithm block uses a three-measurement processing algorithm to monitor the quality of each analog quantity measuring element and the deviation between them according to the analog quantity data obtained by the three analog quantity measuring elements connected to it, so as to determine whether each analog quantity measuring element has a quality alarm or a deviation alarm. Among them, if the quality of the analog quantity measuring element input is BAD or the value is an invalid floating point number, it is called a quality alarm; if the absolute value of the difference between the input values ​​of two analog quantity measuring elements is greater than or equal to the preset deviation allowable value (DEV), it is called a deviation alarm.

[0034] Specifically, for the three analog quantity data obtained, the analog quantity three-centering algorithm block monitors whether the analog quantity measuring element has a quality alarm or a deviation alarm through process judgment. The process judgment of the analog quantity three-centering algorithm block specifically includes: If all inputs have quality alarms, the output maintains the previous non-bad value and the output point quality is BAD; If two inputs have quality alarms, the third input without quality alarms is selected; If only one input has a quality alarm, and there is no deviation alarm between the other two inputs, the output is equal to the average of the two input signals without quality alarms, and the quality is the worse of the two input qualities; If only one input has a quality alarm, and the other two inputs have a deviation alarm, the output maintains the previous non-bad value, and the output point quality is BAD; If there is no quality alarm for any of the three inputs, but there is a deviation alarm between any two of them, the output maintains the previous non-bad value, and the output point quality is BAD; If none of the three inputs have quality alarms, one of them has a deviation alarm with the other two, and there is no deviation alarm between the other two, the output is equal to the average of the two input signals without deviation alarms, and the quality is the worse of the two inputs; If none of the three inputs have quality alarms, but there are deviation alarms between two of them, but they have no deviation alarms with the third, the value and quality of the output will be the same as the third input.

[0035] The embodiment of the present application uses the analog quantity three-centering algorithm block function to analyze the state of the analog quantity measurement element, thereby determining whether the analog quantity measurement element has a potential fault. Specifically, for each analog quantity measurement element, when the analog quantity measurement element has a quality alarm or a deviation alarm, the potential fault state of the analog quantity measurement element is determined to be the presence of a potential fault, and when the analog quantity measurement element has no quality alarm and no deviation alarm, the potential fault state of the analog quantity measurement element is determined to be the absence of a potential fault.

[0036] Step A600, when it is determined that the fault potential state of the analog measurement element is that there is a fault potential, a fault potential signal is generated and sent to the RS trigger, so that the RS trigger maintains the first state in response to the fault potential signal, generates an alarm signal according to the fault potential signal and sends it to the alarm module, and the alarm module issues an alarm prompt according to the alarm signal.

[0037] The first state indicates that the analog quantity measurement element has a potential fault, and both the potential fault signal and the alarm signal include relevant information corresponding to the analog quantity measurement element with the potential fault.

[0038] The relevant information is specifically the unique identification information of the analog quantity measuring element, which may be the coding information or the element name of the analog quantity measuring element.

[0039] In the embodiment of the present application, the analog quantity three-centering algorithm block outputs the determined fault potential state of the analog quantity measurement element to the RS trigger connected thereto in the form of a GP point through its own monitoring and judgment. Among them, a GP point contains 16 switch points, which are represented by bit0-bit15 respectively, and different bits represent different meanings, that is, the abnormal conditions of the analog quantity measurement element can be recorded respectively through the output of different bits of the GP point.

[0040] For example, the three temperature transmitters in the above example are respectively recorded as temperature transmitter A, temperature transmitter B and temperature transmitter C. Bit 1 of the GP point represents that the quality of temperature transmitter A is bad, bit 2 represents that the quality of temperature transmitter B is bad, bit 3 represents that the quality of temperature transmitter C is bad, bit 4 represents that the deviation between temperature transmitter A and temperature transmitter B and temperature transmitter C is large, bit 5 represents that the deviation between temperature transmitter B and temperature transmitter A and temperature transmitter C is large, and bit 6 represents that the deviation between temperature transmitter C and temperature transmitter A and temperature transmitter B is large.

[0041] When the analog quantity three-centering algorithm block collects the real-time input of three temperature transmitters, if the input of temperature transmitter A is monitored to be BAD, it is judged that there is a quality alarm of temperature transmitter A, and at this time, GP point-bit1 is output to represent the quality alarm of temperature transmitter A. If the measured value (i.e., analog quantity data) of temperature transmitter A is monitored to be too large, and the measured values ​​of temperature transmitters B and temperature transmitters C are similar, and the deviation value of the measured values ​​of temperature transmitters A and temperature transmitter B is greater than the preset control deviation dead zone DEV, and the deviation value of the measured values ​​of temperature transmitters A and temperature transmitter C is greater than the preset control deviation dead zone DEV, it is judged that there is a deviation alarm of temperature transmitter A, and at this time, GP point-bit4 is output to represent the deviation alarm of temperature transmitter A.

[0042] It can be seen that the measuring element fault warning method provided in the embodiment of the present application, when the analog quantity three-centering algorithm block finds that the analog quantity measuring element may have a fault, promptly sends a fault hidden danger signal (i.e., the output of the GP point) to the RS trigger, so that the RS trigger is kept in the "1" state, i.e., the first state, so that the RS trigger generates an alarm signal based on the fault hidden danger signal and sends the alarm signal to the alarm module, so that the alarm module issues an alarm prompt according to the alarm signal, so that relevant personnel can promptly know that the analog quantity measuring element has a fault hidden danger, and then promptly eliminate the discovered fault hidden danger, thereby ensuring the operating reliability and accuracy of the analog quantity measuring element, and then improving the safety of the control system, that is, effectively reducing the system safety risk of related control that relies on the analog quantity data collected by the analog quantity measuring element.

[0043] That is, the measuring element fault warning method provided in the embodiment of the present application obtains and records abnormal moments when analog data has jumps or large deviations through the logical configuration of the analog three-centering algorithm block, and reminds relevant personnel to discover problems in time by sending alarm signals, and then notifies maintenance personnel to focus on checking suspicious analog measurement elements and repair them in time, so that the hidden dangers of failure of analog measurement elements can be eliminated in time in the bud stage.

[0044] In addition, in the automation control system, the pressure, temperature, flow and liquid level measurement objects of important equipment or process flow are usually equipped with three measuring elements, and the principle of two out of three is adopted to reduce the accidental error of a single measuring element and cause measurement inaccuracy, thereby improving the reliability of system protection. Although this method enhances the reliability of system protection to a certain extent, it does not mean that all measuring elements are in normal measurement and monitoring status.

[0045] Take the desulfurization system as an example. During the operation of the desulfurization system, the original flue gas contains a large amount of impurities such as sulfur dioxide, nitrogen oxides and dust. These components not only cause serious environmental pollution, but also have strong corrosiveness, which can easily lead to unstable or erroneous output of the measuring element. For the collected original flue gas temperature data, the relevant personnel can only strengthen monitoring on the DCS screen and regularly record operation reports for auxiliary monitoring. However, if the hidden dangers of the measuring elements of the original flue gas temperature are not discovered in time, and the system protection still relies on the output of these measuring elements, then the risk of false triggering of the system protection will increase, especially when there are hidden dangers in two or more measuring elements, the risk of false triggering of protection will increase significantly, which may lead to serious consequences, such as the main fuel trip (MFT) of the boiler.

[0046] Based on this, the measuring element failure early warning method provided in the embodiment of the present application may further include the following steps.

[0047] Step A700, determining target analog data of the physical position of the analog measurement element according to the analog data, and sending the target analog data to the control module of the control system, so that the control module determines whether to perform system protection operation according to the target analog data.

[0048] In the embodiment of the present application, the analog quantity three-centering algorithm block determines the target analog quantity data of the physical positions of the three analog quantity measuring elements according to the analog quantity data of the three analog quantity measuring elements and the potential fault status of each analog quantity measuring element.

[0049] In a specific example, when the three analog quantity measuring elements have no quality alarm and deviation alarm, the target analog quantity data is determined to be the middle value of the analog quantity data of the three analog quantity measuring elements, otherwise, the best or most likely correct analog quantity data among the analog quantity data of the three analog quantity measuring elements, or the average value of the three analog quantity data is selected as the target analog quantity data. After obtaining the real and effective measurement value (i.e., the target analog quantity data), the control module determines whether to perform system protection operation according to the preset system protection rules. For example, in the desulfurization system, when the flue gas temperature value is greater than 180°C, it is easy to cause serious damage to the anti-corrosion material in the absorption tower, which leads to an accident. Based on this, when the current value of the flue gas temperature determined according to the three flue gas temperature values ​​collected at the same time (i.e., the target analog quantity data) is greater than 180°C, the control module determines to perform system protection operation, that is, the boiler triggers the MFT protection trip.

[0050] The embodiment of the present application can effectively prevent the control system from erroneously executing system protection operations due to potential faults in the analog quantity measurement element by determining the target analog quantity data of the physical position of the analog quantity measurement element based on the collected analog quantity data.

[0051] Optionally, in the embodiment of the present application, after step A400, the method may further include the following steps.

[0052] Step A500: Send the analog quantity data and the potential fault status of the analog quantity measuring element to the data storage module, and the data storage module performs data storage.

[0053] The embodiment of the present application stores the analog data and fault potential status of the analog measurement element to facilitate subsequent query and backtracking, thereby helping to establish maintenance decisions for the control system and further improving the safety of the control system.

[0054] Figure 1 FIG. 1 is a schematic diagram of a first flow chart of a method for early warning of a fault of a measuring element in an embodiment. It should be understood that although Figure 1 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0055] Figure 2 The second flow chart of the measuring element failure early warning method according to the embodiment of the present application is schematically shown. Figure 2 As shown, in one embodiment of the present application, a measuring element fault warning method is provided, which is applied to a control system. The control system includes an analog measurement element, an analog three-centering algorithm block, an RS trigger and an alarm module connected in sequence. The method is executed by the RS trigger. The method may include the following steps.

[0056] Step B200, in response to the potential fault signal received from the analog quantity three-centering algorithm block, maintaining the first state.

[0057] The first state indicates that the analog quantity measurement element has a potential fault, and the potential fault signal is generated by the analog quantity three-centering algorithm block based on determining that the potential fault state of the analog quantity measurement element is a potential fault.

[0058] Step B400, generating an alarm signal according to the potential fault signal and sending the alarm signal to the alarm module, so that the alarm module issues an alarm prompt according to the alarm signal.

[0059] The alarm signal includes relevant information corresponding to the analog measurement element with potential fault.

[0060] Specifically, at the moment when the analog data collected by the analog measurement element is abnormal, it will be collected and monitored in real time by the analog three-centering algorithm block and output as an alarm. This output is immediately captured by the RS trigger and maintained as an alarm information output, prompting relevant personnel that the analog measurement element has a hidden fault. It should be noted that in the embodiment of the present application, the alarm information output by the RS trigger does not disappear when the analog data of the analog measurement element returns to normal from the abnormal moment. The RS trigger can only be reset to eliminate the alarm after the relevant personnel receive the alarm prompt and the maintenance personnel conduct an on-site actual inspection of the analog measurement element with hidden faults.

[0061] For example, assuming that the analog three-centering algorithm block detects that a bad point appears in the instantaneous input of temperature transmitter A, the analog three-centering algorithm block output state GP point (bit1) switch point output will monitor that the quality alarm of the temperature transmitter changes from 0 to 1. In this case, the RS trigger is used to maintain the collected quality alarm status as an alarm information output and pass it to the alarm module, so that the alarm module prompts relevant personnel that the temperature transmitter A is suspected to be faulty.

[0062] It can be seen that in the measuring element fault warning method provided in the embodiment of the present application, when the analog quantity three-centering algorithm block finds that the analog quantity measuring element may have a fault, the RS trigger outputs an alarm signal in a timely manner so that relevant personnel can know that there is a hidden fault in the analog quantity measuring element at the first time, and then promptly notify the maintenance personnel to conduct timely inspections and eliminate the existing hidden faults, thereby ensuring the operating reliability and accuracy of the analog quantity measuring element, and thus improving the safety of the control system.

[0063] In the embodiment of the present application, the method may further include the following steps.

[0064] Step B600, switching from the first state to the second state in response to a reset signal received from the alarm module.

[0065] The second state indicates that there is no hidden danger of failure in the analog quantity measuring element.

[0066] Specifically, when the reset signal sent by the alarm module is obtained, it indicates that the potential fault of the analog quantity measuring element has been eliminated. In this case, by switching the RS trigger from the first state to the second state, that is, switching to the "0" state, it is ensured that the analog quantity measuring element enters the monitoring state of the analog quantity three-centering algorithm block again. When the analog quantity three-centering algorithm block subsequently finds that the analog quantity measuring element has a potential fault, the RS trigger can promptly issue an alarm signal, thereby prompting relevant personnel through the alarm module.

[0067] Figure 3 The third flow chart of the measuring element failure early warning method according to the embodiment of the present application is schematically shown. Figure 3 As shown, in one embodiment of the present application, a measuring element fault warning method is provided, which is applied to a control system. The control system includes an analog measurement element, an analog three-centering algorithm block, an RS trigger and an alarm module connected in sequence. The method is executed by the alarm module, and the method may include the following steps.

[0068] Step C200, obtaining the alarm signal sent by the RS trigger.

[0069] The alarm signal is generated by the RS trigger according to the potential fault signal sent by the analog three-centering algorithm block; the potential fault signal is generated by the analog three-centering algorithm block when the potential fault state of the analog measurement element is determined to be the presence of a potential fault. Both the potential fault signal and the alarm signal contain relevant information corresponding to the analog measurement element with a potential fault.

[0070] Step C400: issuing an alarm prompt according to the alarm signal.

[0071] In an embodiment of the present application, the alarm module includes a display interface, in which a reset button is provided; the display interface is used to display relevant information corresponding to the analog quantity measurement element with potential faults; the reset button can be triggered by the operator to switch the RS trigger to the second state. The second state indicates that the analog quantity measurement element has no potential faults.

[0072] In a specific example, when the alarm module receives the alarm signal (i.e., when the alarm point is triggered), the alarm module uses the built-in optical alarm tool program of the DCS system software to pop up an alarm window containing relevant information of the analog measurement element with potential faults on the display interface to provide an alarm prompt, such as Figure 4 As shown in the figure, the relevant personnel will notify the instrument maintenance personnel to conduct on-site inspections based on the alarm prompts to eliminate the existing potential fault hazards.

[0073] In addition, the alarm module may further include a voice alarm unit to notify relevant personnel through voice playback that the analog quantity measuring element has a potential fault.

[0074] It can be seen that after obtaining the alarm signal output by the RS trigger, the measuring element fault warning method provided in the embodiment of the present application issues an alarm prompt for the alarm signal, so that relevant personnel can promptly discover the potential faults of the analog measurement element, and then eliminate the existing potential faults, thereby ensuring the operating reliability and accuracy of the analog measurement element, and thus improving the safety of the control system.

[0075] In the embodiment of the present application, the method may further include the following steps.

[0076] Step C500, generating a reset signal when the reset button is triggered.

[0077] Step C600: sending the reset signal to the RS flip-flop to switch the RS flip-flop from the first state to the second state.

[0078] The second state indicates that there is no hidden danger of failure in the analog quantity measuring element.

[0079] Specifically, after the maintenance personnel conduct an on-site inspection based on the alarm signal and eliminate the potential fault of the analog quantity measuring element, the alarm of the analog quantity measuring element is reset on the display interface, so that the analog quantity measuring element enters the monitoring state again, ensuring continuous fault warning of the analog quantity measuring element.

[0080] Figure 5 The first structural block diagram of the measuring element failure warning device according to the embodiment of the present application is schematically shown. Figure 5 As shown, in one embodiment of the present application, a measuring element failure warning device is provided, which is applied to a control system. The control system includes an analog measurement element, an analog three-centering algorithm block, an RS trigger and an alarm module connected in sequence. The device is configured in the analog three-centering algorithm block. The measuring element failure warning device may include the following functional modules.

[0081] An analog quantity data acquisition module, used to acquire the analog quantity data collected by the analog quantity measurement element; A fault potential state determination module is used to determine the fault potential state of the analog quantity measurement element according to the analog quantity data. The fault potential state is whether there is a fault potential or not; The first measuring element fault warning module is used to generate a fault potential signal and send it to the RS trigger when it is determined that the fault potential state of the analog quantity measuring element is a fault potential, so that the RS trigger maintains the first state in response to the fault potential signal, generates an alarm signal according to the fault potential signal and sends it to the alarm module, and the alarm module issues an alarm prompt according to the alarm signal. The first state indicates that the analog quantity measuring element has a fault potential, and the fault potential signal and the alarm signal both contain relevant information corresponding to the analog quantity measuring element with a fault potential.

[0082] Since the measuring element fault warning device provided in the embodiment of the present application is a virtual device corresponding to the measuring element fault warning method of the above embodiment, it can also solve the problem in the prior art that when a potential fault occurs in a measuring element, it is difficult to detect it in time and then eliminate it in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control.

[0083] Figure 6 The second structural block diagram of the measuring element failure warning device according to the embodiment of the present application is schematically shown. Figure 6As shown, in one embodiment of the present application, a measuring element fault warning device is provided, which is applied to a control system. The control system includes an analog measurement element, an analog three-centering algorithm block, an RS trigger and an alarm module connected in sequence. The device is configured in the RS trigger. The measuring element fault warning device may include the following functional modules.

[0084] The state adjustment module is used to maintain a first state in response to a potential fault signal received from the analog quantity three-centering algorithm block. The first state indicates that the analog quantity measurement element has a potential fault. The potential fault signal is generated by the analog quantity three-centering algorithm block based on determining that the potential fault state of the analog quantity measurement element is a potential fault.

[0085] The second measuring element failure warning module is used to generate an alarm signal according to the potential fault signal and send it to the alarm module, so that the alarm module can give an alarm prompt according to the alarm signal. The alarm signal includes relevant information corresponding to the analog measuring element with potential fault.

[0086] Since the measuring element fault warning device provided in the embodiment of the present application is a virtual device corresponding to the measuring element fault warning method of the above embodiment, it can also solve the problem in the prior art that when a potential fault occurs in a measuring element, it is difficult to detect it in time and then eliminate it in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control.

[0087] Figure 7 The third structural block diagram of the measuring element failure warning device according to the embodiment of the present application is schematically shown. Figure 7 As shown, in one embodiment of the present application, a measuring element failure warning device is provided, which is applied to a control system. The control system includes an analog measurement element, an analog three-centering algorithm block, an RS trigger and an alarm module connected in sequence. The device is configured in the alarm module. The measuring element failure warning device may include the following functional modules.

[0088] The alarm signal acquisition module is used to acquire the alarm signal sent by the RS trigger. The alarm signal is generated by the RS trigger according to the potential fault signal sent by the analog three-centering algorithm block; the potential fault signal is generated by the analog three-centering algorithm block when determining that the potential fault state of the analog measurement element is that there is a potential fault. Both the potential fault signal and the alarm signal contain relevant information corresponding to the analog measurement element with a potential fault.

[0089] The third measuring element failure warning module is used to issue an alarm prompt according to the alarm signal.

[0090] Since the measuring element fault warning device provided in the embodiment of the present application is a virtual device corresponding to the measuring element fault warning method of the above embodiment, it can also solve the problem in the prior art that when a potential fault occurs in a measuring element, it is difficult to detect it in time and then eliminate it in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control.

[0091] An embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the measuring element failure warning method described in the above embodiment when executing the computer program.

[0092] The electronic device provided in the embodiment of the present application includes a processor capable of running the measuring element fault warning method of the aforementioned embodiment, and can therefore also solve the problem in the prior art that when a potential fault occurs in a measuring element, it is difficult to detect it in time, and then eliminate these hidden dangers in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control.

[0093] An embodiment of the present application provides a machine-readable storage medium, on which instructions are stored. When the instructions are executed by a processor, the processor is configured to execute the measuring element failure early warning method described in the above embodiment.

[0094] The machine-readable storage medium provided in the embodiment of the present application stores instructions for causing the machine to execute the measuring element fault warning method of the above embodiment. Therefore, it can also solve the problem in the prior art that when a potential fault occurs in a measuring element, it is difficult to detect it in time and then eliminate it in time, which increases the safety risk of the system that relies on the analog data of the measuring element for related control.

[0095] Figure 8 The internal structure diagram of the computer device of the embodiment of the present application is schematically shown. Figure 8As shown, in one embodiment of the present application, a computer device is provided, which may be a terminal. The computer device includes a processor A01, a network interface A02, a display screen A04, an input device A05 and a memory (not shown in the figure) connected via a system bus. Among them, the processor A01 of the computer device is used to provide computing and control capabilities. The memory of the computer device includes an internal memory A03 and a non-volatile storage medium A06. The non-volatile storage medium A06 stores an operating system B01 and a computer program B02. The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 in the non-volatile storage medium A06. The network interface A02 of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor A01, a method for early warning of a measuring element failure is implemented. The display screen A04 of the computer device may be a liquid crystal display or an electronic ink display, and the input device A05 of the computer device may be a touch layer covered on the display screen, or a key, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0096] Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0097] In one embodiment, the measuring element failure warning device provided in the present application can be implemented in the form of a computer program. The computer program can be Figure 8 The computer device is run on the computer device shown. The memory of the computer device can store various program modules constituting the measuring element failure early warning device, and the computer program composed of various program modules enables the processor to execute the steps of the measuring element failure early warning method of each embodiment of the present application described in this specification.

[0098] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0099] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0100] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0101] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0102] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0103] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0104] Computer readable media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0105] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0106] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for early warning of a measuring element failure, characterized in that: Applied to a control system, the control system comprises an analog quantity measurement element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, the method is executed by the analog quantity three-centering algorithm block, and the method comprises: Acquiring analog quantity data collected by the analog quantity measuring element; Determine the potential fault state of the analog quantity measuring element according to the analog quantity data; wherein the potential fault state is the presence of a potential fault or the absence of a potential fault; When it is determined that the potential fault state of the analog quantity measuring element is that there is a potential fault, a potential fault signal is generated and sent to the RS trigger, so that the RS trigger maintains the first state in response to the potential fault signal, generates an alarm signal according to the potential fault signal and sends it to the alarm module, and the alarm module issues an alarm prompt according to the alarm signal; The first state indicates that the analog quantity measurement element has a potential fault, and both the potential fault signal and the alarm signal include relevant information corresponding to the analog quantity measurement element with the potential fault.

2. The method according to claim 1, characterized in that The control system further includes a control module; the method further includes: According to the analog quantity data, target analog quantity data of the physical position of the analog quantity measuring element is determined, and the target analog quantity data is sent to the control module, so that the control module determines whether to perform a system protection operation according to the target analog quantity data.

3. The method according to claim 1, characterized in that: The control system further includes a data storage module; after determining the potential fault state of the analog quantity measuring element according to the analog quantity data, the method further includes: The analog quantity data and the potential fault status of the analog quantity measuring element are sent to the data storage module, and the data storage module performs data storage.

4. A method for early warning of measuring element failure, characterized in that: Applied to a control system, the control system comprises an analog quantity measurement element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, the method is executed by the RS trigger, and the method comprises: In response to a potential fault signal received from the analog quantity three-centering algorithm block, a first state is maintained; wherein the first state indicates that a potential fault exists in the analog quantity measurement element; wherein the potential fault signal is generated by the analog quantity three-centering algorithm block based on determining that the potential fault state of the analog quantity measurement element is a potential fault; An alarm signal is generated according to the potential fault signal and sent to the alarm module, so that the alarm module issues an alarm prompt according to the alarm signal; wherein the alarm signal includes relevant information corresponding to the analog quantity measurement element with potential fault.

5. The method according to claim 4, characterized in that The method further comprises: In response to a reset signal received from the alarm module, the first state is switched to the second state; wherein the second state indicates that there is no hidden danger of failure in the analog quantity measuring element.

6. A method for early warning of measuring element failure, characterized in that: Applied to a control system, the control system comprises an analog quantity measurement element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, the method is executed by the alarm module, and the method comprises: Acquire the alarm signal sent by the RS trigger; wherein the alarm signal is generated by the RS trigger according to the potential fault signal sent by the analog three-centering algorithm block; the potential fault signal is generated by the analog three-centering algorithm block determining that the potential fault state of the analog quantity measurement element is that there is a potential fault; wherein the potential fault signal and the alarm signal both contain relevant information corresponding to the analog quantity measurement element with the potential fault; An alarm prompt is given according to the alarm signal.

7. The method according to claim 6, characterized in that The alarm module includes a display interface, and a reset button is provided in the display interface; the display interface is used to display relevant information corresponding to the analog measurement element with potential faults; the reset button can be triggered by an operator to switch the RS trigger to a second state; wherein the second state indicates that the analog measurement element has no potential faults; the method further includes: When the reset button is triggered, a reset signal is generated; The reset signal is sent to the RS trigger to switch the RS trigger from the first state to the second state; wherein the second state indicates that there is no hidden danger of failure of the analog quantity measuring element.

8. A measuring element failure warning device, characterized in that: Applied to a control system, the control system includes an analog quantity measurement element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, the device is configured in the analog quantity three-centering algorithm block, and the device includes: An analog quantity data acquisition module, used to acquire the analog quantity data collected by the analog quantity measurement element; A fault potential state determination module, used to determine the fault potential state of the analog quantity measurement element according to the analog quantity data; wherein the fault potential state is the presence of a fault potential or the absence of a fault potential; A first measuring element fault early warning module is used for generating a fault potential signal and sending it to an RS trigger when it is determined that the fault potential state of the analog quantity measuring element is a fault potential, so that the RS trigger maintains a first state in response to the fault potential signal, generates an alarm signal according to the fault potential signal and sends it to the alarm module, and the alarm module issues an alarm prompt according to the alarm signal; The first state indicates that the analog quantity measurement element has a potential fault, and both the potential fault signal and the alarm signal include relevant information corresponding to the analog quantity measurement element with the potential fault.

9. A measuring element failure warning device, characterized in that: Applied to a control system, the control system includes an analog quantity measurement element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, the device is configured in the RS trigger, and the device includes: A state adjustment module, for maintaining a first state in response to a potential fault signal received from the analog quantity three-centering algorithm block; wherein the first state indicates that a potential fault exists in the analog quantity measurement element; wherein the potential fault signal is generated by the analog quantity three-centering algorithm block based on determining that the potential fault state of the analog quantity measurement element is a potential fault; The second measuring element fault warning module is used to generate an alarm signal according to the potential fault signal and send it to the alarm module, so that the alarm module issues an alarm prompt according to the alarm signal; wherein the alarm signal contains relevant information corresponding to the analog measuring element with potential fault.

10. A measuring element failure warning device, characterized in that: Applied to a control system, the control system includes an analog quantity measurement element, an analog quantity three-centering algorithm block, an RS trigger and an alarm module connected in sequence, the device is configured in the alarm module, and the device includes: An alarm signal acquisition module is used to acquire the alarm signal sent by the RS trigger; wherein the alarm signal is generated by the RS trigger according to the potential fault signal sent by the analog three-centering algorithm block; the potential fault signal is generated by the analog three-centering algorithm block determining that the potential fault state of the analog quantity measurement element is that there is a potential fault; wherein the potential fault signal and the alarm signal both contain relevant information corresponding to the analog quantity measurement element with a potential fault; The third measuring element failure warning module is used to issue an alarm prompt according to the alarm signal.

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