CN117079436A

CN117079436A - Alarm threshold adjustment method, monitoring system, storage medium and processor

Info

Publication number: CN117079436A
Application number: CN202311266381.3A
Authority: CN
Inventors: 毛旭涛; 陈思; 鲍涛; 王恩林; 秦晓翔; 王鑫国; 龚永杰; 张刘雅; 冯亚光; 宋鼎钰
Original assignee: National Energy Group Ningxia Coal Industry Co Ltd
Current assignee: National Energy Group Ningxia Coal Industry Co Ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2023-11-17

Abstract

The application provides an alarm threshold adjusting method, a monitoring system, a storage medium and a processor. The method comprises the following steps: detecting whether a first target alarm data set exists in a DCS system; under the condition that a first target alarm data set exists in the DCS system, determining whether target equipment is in a normal running state or not; and at least under the condition that the target equipment is in a normal running state, adjusting the alarm threshold range of the first target alarm instrument so as to reduce the probability of false alarm of the first target alarm instrument. The method solves the problem that the number of alarm data generated by false alarm of an alarm instrument is increased because the alarm threshold cannot be automatically adjusted in the prior art.

Description

Alarm threshold adjustment method, monitoring system, storage medium and processor

Technical Field

The application relates to the technical field of alarm data processing, in particular to an alarm threshold adjusting method, a monitoring system, a computer readable storage medium and a processor.

Background

In order to ensure the safe production of petrochemical industry, an alarm monitoring system is often configured for production equipment, wherein the alarm monitoring system consists of various alarm instruments or devices, such as a temperature sensor, a flowmeter, a vibration sensor and the like. The large number of alarm instruments and devices also means that a large amount of alarm data needs to be processed.

The alarm data processing method in the prior art has the following defects:

1. it is difficult to select high-value alarm data from among a large number of alarm data.

2. The problem that the number of alarm data generated by false alarm of an alarm instrument is increased because of the lack of reasonable analysis of the alarm data and the inability to automatically adjust the alarm threshold value.

Currently there is no solution to the above problems.

Disclosure of Invention

The application aims to provide an adjusting method, a monitoring system, a computer readable storage medium and a processor for an alarm threshold value, which at least solve the problem that the number of alarm data generated by false alarm of an alarm instrument is increased because the alarm threshold value cannot be automatically adjusted in the prior art.

In order to achieve the above object, according to one aspect of the present application, there is provided a method applied to a monitoring system communicatively connected to a DCS system communicatively connected to a plurality of alarm instruments mounted on a production facility, the method comprising: detecting whether a first target alarm data set exists in the DCS system, wherein the first target alarm data set comprises a plurality of target alarm data, the first target alarm data set is reported to the DCS system by a first target alarm instrument, the first target alarm instrument is one of a plurality of alarm instruments on target equipment, the target equipment is one of a plurality of production equipment, the target alarm data represents that a first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument or represents that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, the first working condition parameter value is the value of a target working condition parameter at a current time node, and the target working condition parameter is one of a plurality of working condition parameters of the target equipment; determining whether the target equipment is in a normal running state or not under the condition that the first target alarm data set exists in the DCS system; and at least under the condition that the target equipment is in the normal running state, adjusting the alarm threshold range of the first target alarm instrument so as to reduce the probability of false alarm of the first target alarm instrument.

Optionally, detecting whether the first target alarm data set exists in the DCS system includes: acquiring a plurality of alarm data sets from the DCS system, wherein each alarm data set comprises a plurality of alarm data, one alarm data set corresponds to one alarm instrument, one alarm data set is reported to the DCS system by the corresponding alarm instrument, and the alarm data of one alarm data set indicates that the value of one working condition parameter of the production equipment to which one alarm instrument belongs is not in the alarm threshold range of the alarm instrument; determining whether a second target alarm data set exists in the alarm data sets, wherein the second target alarm data set is the alarm data set with the quantity of the contained alarm data being greater than or equal to the preset quantity; determining whether the safety level of the alarm instrument corresponding to the second target alarm data set is greater than a preset level, wherein the safety level of the alarm instrument represents the importance of the production equipment to which the alarm instrument belongs; and determining the second target alarm data set as the first target alarm data set under the condition that the safety level of the alarm instrument corresponding to the second target alarm data set is greater than the preset level.

Optionally, at least in the case that the target device is in the normal running state, adjusting the alarm threshold range of the first target alarm instrument to reduce the probability of false alarm of the first target alarm instrument includes: and under the condition that the target equipment is in the normal running state and a second target alarm instrument does not alarm, adjusting the alarm threshold range of the first target alarm instrument so as to reduce the probability of false alarm of the first target alarm instrument, wherein the second target alarm instrument is different from the alarm instrument of the first target alarm instrument, and the second target alarm instrument can cause the first target alarm instrument to alarm when alarming, or the second target alarm instrument can cause the first target alarm instrument to alarm when alarming.

Optionally, adjusting the alarm threshold range of the first target alarm instrument to reduce the probability of false alarm of the first target alarm instrument includes: acquiring second working condition parameter values of a plurality of continuous historical time periods, wherein the historical time periods correspond to the second working condition parameter values one by one, and the second working condition parameter values are values of the target working condition parameters in the corresponding historical time periods; determining whether the distribution state of the second working condition parameter values of a plurality of continuous historical time periods is normal distribution; under the condition that the distribution states of the second working condition parameter values of a plurality of continuous historical time periods are normally distributed, determining a third working condition parameter value, wherein the third working condition parameter value is the value of the target working condition parameter at the next time node of the current time node; determining a plurality of target time periods according to the second working condition parameter values, wherein the target time periods are the corresponding historical time periods with the second working condition parameter values being the same as the third working condition parameter values; under the condition that the target alarm data represent that the first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument, acquiring a plurality of first alarm thresholds according to the target time period, and adjusting the upper limit value of the alarm threshold range of the first target alarm instrument according to all the first alarm thresholds and the third working condition parameter value so as to reduce the probability of false alarm of the first target alarm instrument, wherein the first alarm thresholds are in one-to-one correspondence with the target time period, and one first alarm threshold is the upper limit value of the alarm threshold range of the first target alarm instrument in one target time period; under the condition that the target alarm data represent that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, acquiring a plurality of second alarm thresholds according to the target time period, and adjusting the lower limit value of the alarm threshold range of the first target alarm instrument according to all the second alarm thresholds and the third working condition parameter value so as to reduce the probability of false alarm of the first target alarm instrument, wherein the second alarm thresholds are in one-to-one correspondence with the target time period, and one second alarm threshold is the lower limit value of the alarm threshold range of the first target alarm instrument in one target time period.

Optionally, adjusting an upper limit value of an alarm threshold range of the first target alarm instrument according to all the first alarm threshold and the third working condition parameter values includes: acquiring a first minimum value, a first average value and a first maximum value, wherein the first minimum value is the minimum value in all the first alarm thresholds, the first average value is the average value of all the first alarm thresholds, and the first maximum value is the maximum value in all the first alarm thresholds; setting the upper limit value of the alarm threshold range of the first target alarm instrument to be the first minimum value under the condition that the third working condition parameter value simultaneously meets the first condition and the second condition, and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjusting unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the third working condition parameter value; setting the upper limit value of the alarm threshold range of the first target alarm instrument to be the first average value when the third operating condition parameter value does not meet the second condition and the third operating condition parameter value meets the third condition, sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjusting unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the third operating condition parameter value, setting the upper limit value of the alarm threshold range of the first target alarm instrument to be the first maximum value when the third operating condition parameter value does not meet the third condition, wherein the first condition is that the third operating condition parameter value is larger than or equal to the first minimum value, the second condition is that the third operating condition parameter value is smaller than the first average value, and the third operating condition parameter value is smaller than the first maximum value; or, according to all the second alarm threshold and the third working condition parameter values, adjusting the lower limit value of the alarm threshold range of the first target alarm instrument, including: acquiring a second minimum value, a second average value and a second maximum value, wherein the second minimum value is the minimum value in all the second alarm thresholds, the second average value is the average value of all the second alarm thresholds, and the second maximum value is the maximum value in all the second alarm thresholds; setting the lower limit value of the alarm threshold range of the first target alarm instrument to the second minimum value under the condition that the third operating parameter value does not meet the fourth condition, setting the lower limit value of the alarm threshold range of the first target alarm instrument to the second average value under the condition that the third operating parameter value meets the fourth condition and meets the fifth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm instrument by the preset adjusting unit until the lower limit value of the alarm threshold range of the first target alarm instrument is smaller than the third operating parameter value, setting the lower limit value of the alarm threshold range of the first target alarm instrument to the second maximum value under the condition that the third operating parameter value does not meet the fifth condition and meets the sixth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm instrument by the preset adjusting unit until the lower limit value of the alarm threshold range of the first target alarm instrument is smaller than the third operating parameter value, and setting the lower limit value of the alarm threshold range of the first target alarm instrument to be smaller than the third operating parameter value, and the third operating condition is smaller than the third operating condition or the fourth operating condition or the sixth condition.

Optionally, after determining whether the distribution state of the second operating condition parameter values for a plurality of consecutive historical time periods is normal, the method further includes: under the condition that the distribution states of the second working condition parameter values of the plurality of continuous historical time periods are not normally distributed and the target alarm data represent that the first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument, acquiring a plurality of third alarm threshold values and fourth working condition parameter values of the continuous historical time periods, and adjusting the alarm threshold range of the first target alarm instrument according to all the third alarm threshold values and the fourth working condition parameter values to reduce the probability of false alarm of the first target alarm instrument, wherein the third alarm threshold value corresponds to the historical time periods one by one, one is the upper limit value of the alarm threshold range of the target alarm instrument in one historical time period, and the fourth working condition Kuang Can value is the value of the target working condition parameter in the current time node; under the condition that the distribution states of the second working condition parameter values of the plurality of continuous historical time periods are not normally distributed and the target alarm data represent that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, a plurality of continuous fourth alarm thresholds of the historical time periods are obtained, the alarm threshold range of the first target alarm instrument is adjusted according to all the fourth alarm thresholds and the fourth working condition parameter values so as to reduce the probability of false alarm of the first target alarm instrument, the fourth alarm threshold corresponds to the historical time periods one by one, and one fourth alarm threshold is the lower limit value of the alarm threshold range of the target alarm instrument in one historical time period.

Optionally, adjusting the alarm threshold range of the first target alarm apparatus according to all the third alarm threshold and the fourth working condition parameter value includes: sequencing the third alarm thresholds according to a first sequence, wherein the first sequence is from small to large; obtaining a third minimum value, a third average value and a third maximum value, wherein the third minimum value is an Mth third alarm threshold value, the third average value is an average value from the Mth third alarm threshold value to an Nth third alarm threshold value, the third maximum value is the Nth third alarm threshold value, M is less than N, and M are positive integers; setting an upper limit value of an alarm threshold range of the first target alarm instrument to the third minimum value and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the fourth working parameter value when the fourth working parameter value does not satisfy the eighth condition and the fourth working parameter value satisfies the ninth condition, setting the upper limit value of the alarm threshold range of the first target alarm instrument to the third average value and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by the preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the fourth working parameter value, setting the upper limit value of the alarm threshold range of the first target instrument to the fourth average value when the fourth working parameter value does not satisfy the ninth condition, setting the upper limit value of the alarm threshold range of the first target alarm instrument to the fourth average value or the fourth average value to the fourth average value is smaller than the fourth average value when the fourth working parameter value does not satisfy the ninth condition; or, adjusting the alarm threshold range of the first target alarm instrument according to all the fourth alarm threshold and the fourth working condition parameter value, including: sorting the fourth alarm thresholds according to a second sequence, wherein the first sequence is from small to large; acquiring a fourth minimum value, a fourth average value and a fourth maximum value, wherein the fourth minimum value is the Q-th fourth alarm threshold value, the fourth average value is the average value from the Q-th fourth alarm threshold value to the P-th fourth alarm threshold value, the fourth maximum value is the P-th fourth alarm threshold value, Q < P, and Q and P are positive integers; setting a lower limit value of an alarm threshold range of the first target alarm device to the fourth minimum value when the fourth operating parameter value does not satisfy a tenth condition, setting a lower limit value of an alarm threshold range of the first target alarm device to the fourth average value when the fourth operating parameter value satisfies the tenth condition and satisfies an eleventh condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth operating parameter value, setting the lower limit value of the alarm threshold range of the first target alarm device to the fourth maximum value when the fourth operating parameter value does not satisfy the eleventh condition and satisfies the twelfth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device to the fourth adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth parameter value is smaller than the fourth average value or the fourth average value, and sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth parameter value is smaller than the fourth average value or the fourth average value when the fourth operating parameter value is smaller than the fourth average value or the fourth operating parameter value is smaller than the fourth condition.

According to another aspect of the present application, there is provided a monitoring system in communication with a DCS system in communication with a plurality of alarm instruments mounted on a production facility, the monitoring system comprising: the detection unit is used for detecting whether a first target alarm data set exists in the DCS system or not, the first target alarm data set comprises a plurality of target alarm data, the first target alarm data set is reported to the DCS system by a first target alarm instrument, the first target alarm instrument is one of a plurality of alarm instruments on target equipment, the target equipment is one of a plurality of production equipment, the target alarm data represents that a first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument or represents that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, the first working condition parameter value is the value of a target working condition parameter at a current time node, and the target working condition parameter is one of a plurality of working condition parameters of the target equipment; the determining unit is used for determining whether the target equipment is in a normal running state or not under the condition that the first target alarm data set exists in the DCS system; the first adjusting unit is used for adjusting the alarm threshold range of the first target alarm instrument at least under the condition that the target equipment is in the normal running state so as to reduce the probability of false alarm of the first target alarm instrument.

According to still another aspect of the present application, there is provided a computer readable storage medium, where the computer readable storage medium includes a stored program, and when the program runs, the device in which the computer readable storage medium is controlled to execute any one of the methods for adjusting the alarm threshold.

According to still another aspect of the present application, there is provided a processor, configured to execute a program, where the program executes any one of the alarm threshold adjustment methods.

By applying the technical scheme of the application, if the DCS system has the first target alarm data set, the first target alarm instrument is indicated to alarm, at the moment, whether the target equipment is in a normal operation state is determined, if the target equipment is in the normal operation state, the alarm threshold range of the first target alarm instrument is indicated to be unreasonably set, so that the first target alarm instrument can give an alarm in error, at the moment, the alarm threshold range of the first target alarm instrument is adjusted to reduce the probability of false alarm of the first target alarm instrument, and the problem that the alarm data quantity generated by false alarm of the alarm instrument is increased because the alarm threshold cannot be automatically adjusted in the prior art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 is a schematic flow chart of a method for adjusting an alarm threshold according to an embodiment of the present application;

FIG. 2 shows a schematic diagram of temperature values versus alarm thresholds for a plurality of consecutive time periods of a year provided in accordance with an embodiment of the present application;

FIG. 3 shows a schematic diagram of a continuous multiple time period alarm threshold over a year provided in accordance with an embodiment of the application;

fig. 4 shows a block diagram of a report monitoring system according to an embodiment of the application.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As described in the background art, the method, the monitoring system, the computer readable storage medium and the processor for adjusting the alarm threshold value are provided in the embodiments of the present application, in order to solve the problem that the alarm threshold value cannot be automatically adjusted in the prior art, and the alarm data generated by false alarm of the alarm instrument is increased.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

In this embodiment, a method of adjusting alarm thresholds operating in a monitoring system communicatively coupled to a DCS system (Distributed Control System ) that is communicatively coupled to a plurality of alarm devices that are installed on a production facility is provided, it should be noted that the steps illustrated in the flowchart of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical sequence is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in a different order than that illustrated herein.

Fig. 1 is a flowchart of a method of adjusting an alarm threshold according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:

step S201, detecting whether a first target alarm data set exists in the DCS system;

the first target alarm data set comprises a plurality of target alarm data, the first target alarm data set is reported to the DCS system by a first target alarm instrument, the first target alarm instrument is one of a plurality of alarm instruments on target equipment, the target equipment is one of a plurality of production equipment, the target alarm data represents that a first working condition parameter value is larger than an upper limit value of an alarm threshold range of the first target alarm instrument or represents that the first working condition parameter value is smaller than a lower limit value of the alarm threshold range of the first target alarm instrument, the first working condition parameter value is a value of a target working condition parameter under a current time node, and the target working condition parameter is one of a plurality of working condition parameters of the target equipment;

Step S202, determining whether the target equipment is in a normal running state or not under the condition that the first target alarm data set exists in the DCS system;

specifically, if the DCS system has the first target alarm data set, it indicates that the first target alarm device is in an alarm state, at this time, it is determined whether the target device is in a normal operation state, if the target device is in the normal operation state, it indicates that the alarm threshold range of the first target alarm device is set unreasonably, so that the first target alarm device can alarm by mistake, where the normal operation state may be divided into two cases, the first case is that the target device is not started, and the second case is that the target device is not stopped in the normal operation process.

Step S203, at least when the target device is in the normal operation state, adjusting an alarm threshold range of the first target alarm device to reduce a probability of false alarm of the first target alarm device.

Specifically, if the DCS system has the first target alarm data set, the first target alarm instrument is indicated to alarm, at this time, whether the target equipment is in a normal operation state is determined, if the target equipment is in the normal operation state, the alarm threshold range of the first target alarm instrument is indicated to be unreasonably set to cause false alarm of the first target alarm instrument, at this time, the alarm threshold range of the first target alarm instrument is adjusted to reduce the false alarm probability of the first target alarm instrument, thereby solving the problems that the alarm threshold cannot be automatically adjusted in the prior art, and the quantity of alarm data generated by false alarm of the alarm instrument is increased.

In an alternative embodiment, the step S201 may be implemented as:

acquiring a plurality of alarm data sets from the DCS system, wherein the alarm data sets comprise a plurality of alarm data, one alarm data set corresponds to one alarm instrument, one alarm data set is reported to the DCS system by the corresponding alarm instrument, and the alarm data of one alarm data set indicates that the value of a working condition parameter of the production equipment to which the alarm instrument belongs is not in the alarm threshold range of the alarm instrument;

determining whether a second target alarm data set exists in the alarm data sets, wherein the second target alarm data set is the alarm data set with the quantity of the contained alarm data being greater than or equal to the preset quantity;

determining whether the safety level of the alarm instrument corresponding to the second target alarm data set is greater than a preset level, wherein the safety level of the alarm instrument represents the importance of the production equipment to which the alarm instrument belongs;

and determining the second target alarm data set as the first target alarm data set under the condition that the safety level of the alarm instrument corresponding to the second target alarm data set is greater than the preset level.

In this embodiment, in the prior art, there is a problem that it is difficult to select high-value alarm data from a large number of alarm data, which is considered to be reported by an alarm instrument with a security level greater than a preset level, and alarm data included in an alarm data group with a number of alarm data greater than the preset number is high-value alarm data, that is, target alarm data, and in some embodiments, the preset number is 5.

To ensure that the alarm instrument is accurately determined to be false alarm, in an alternative embodiment, the step S203 may be implemented as follows:

and under the condition that the target equipment is in the normal operation state and a second target alarm instrument does not alarm, adjusting the alarm threshold range of the first target alarm instrument so as to reduce the probability of false alarm of the first target alarm instrument, wherein the second target alarm instrument is different from the alarm instrument of the first target alarm instrument, and the second target alarm instrument can cause the first target alarm instrument to alarm when alarming, or can cause the second target alarm instrument to alarm when alarming.

In this embodiment, the monitoring system may send a working condition confirmation instruction to the DCS system, where the DCS system determines whether the target device is in a normal operating state, determines whether the alarm device associated with the first target alarm device (the second target alarm device) alarms, and if the target device is in a normal operating state and the alarm device associated with the first target alarm device does not alarm, determines that the alarm device alarms by mistake, and by double determination, can ensure that the alarm device alarms by mistake accurately.

The step S203 may be implemented as:

step S2031, obtaining second working condition parameter values of a plurality of continuous historical time periods, where the historical time periods correspond to the second working condition parameter values one by one, and the second working condition parameter values are values of the target working condition parameters in the corresponding historical time periods;

specifically, in the monitoring system, an ID number list is stored, where the ID number list includes an ID number of an alarm instrument and a number of a production device corresponding to the alarm instrument, the number of the target device is determined according to the ID number of the first target alarm instrument, and the target device is confirmed according to the number, so as to obtain second operating condition parameter values of a plurality of continuous historical time periods, and in the monitoring system, the second operating condition parameter value of each production device is stored, where in some embodiments, the second operating condition parameter value is any one of the following: temperature value, pressure value, flow value, liquid level value, concentration value, humidity value.

Step S2032, determining whether the distribution states of the second operating mode parameter values for a plurality of continuous historical time periods are normally distributed;

step S2033, determining a third operating condition parameter value, where the distribution states of the plurality of second operating condition parameter values in the continuous historical time periods are normally distributed, and the third operating condition parameter value is a value of the target operating condition parameter at a time node next to the current time node;

Step S2034, determining a plurality of target time periods according to the second operating condition parameter value, where the target time periods are the corresponding historical time periods in which the second operating condition parameter value is the same as the third operating condition parameter value;

step S2035, when the target alarm data indicates that the first operating condition parameter value is greater than the upper limit value of the alarm threshold range of the first target alarm device, obtaining a plurality of first alarm thresholds according to the target time period, and adjusting the upper limit value of the alarm threshold range of the first target alarm device according to all the first alarm thresholds and the third operating condition parameter value to reduce the probability of false alarm of the first target alarm device, where the first alarm thresholds are in one-to-one correspondence with the target time period, and one of the first alarm thresholds is the upper limit value of the alarm threshold range of the first target alarm device in one of the target time periods;

specifically, if the target alarm data represents that the value of the first working condition parameter is greater than the upper limit value of the alarm threshold range of the first target alarm instrument, the upper limit value of the alarm threshold range of the first target alarm instrument is unreasonably set to cause the false alarm of the first target alarm instrument, and at this time, the upper limit value of the alarm threshold range of the first target alarm instrument is adjusted to reduce the false alarm probability of the first target alarm instrument.

Step S2036, when the target alarm data indicates that the first operating condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm device, obtaining a plurality of second alarm thresholds according to the target time period, and adjusting the lower limit value of the alarm threshold range of the first target alarm device according to all the second alarm thresholds and the third operating condition parameter value, so as to reduce the probability of false alarm of the first target alarm device, where the second alarm thresholds are in one-to-one correspondence with the target time period, and one of the second alarm thresholds is the lower limit value of the alarm threshold range of the first target alarm device in one of the target time periods.

Specifically, if the target alarm data represents that the value of the first working condition parameter is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, the lower limit value of the alarm threshold range of the first target alarm instrument is unreasonably set to cause the false alarm of the first target alarm instrument, and at this time, the lower limit value of the alarm threshold range of the first target alarm instrument is adjusted to reduce the false alarm probability of the first target alarm instrument.

In an alternative embodiment, the step S2035 may be implemented as follows:

Acquiring a first minimum value, a first average value and a first maximum value, wherein the first minimum value is the minimum value in all the first alarm thresholds, the first average value is the average value of all the first alarm thresholds, and the first maximum value is the maximum value in all the first alarm thresholds;

setting the upper limit value of the alarm threshold range of the first target alarm instrument to the first minimum value under the condition that the third working condition parameter value simultaneously meets the first condition and the second condition, and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjusting unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the third working condition parameter value; setting an upper limit value of an alarm threshold range of the first target alarm device to the first average value when the third operating parameter value does not satisfy the second condition and the third operating parameter value satisfies the third condition, sequentially increasing the upper limit value of the alarm threshold range of the first target alarm device by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm device is larger than the third operating parameter value, setting the upper limit value of the alarm threshold range of the first target alarm device to the first maximum value when the third operating parameter value does not satisfy the third condition, setting the first condition to the third operating parameter value to be larger than or equal to the first minimum value, and setting the second condition to the third operating parameter value to be smaller than the first average value, and setting the third operating parameter value to be smaller than the first maximum value.

In this embodiment, in some embodiments, the working condition parameter is temperature, as shown in fig. 2, the dotted line is the upper limit value of the alarm threshold range of the first target alarm device, the solid line is the temperature value of the target equipment, when the temperature value is in normal distribution, the temperature value of 12 months 1 day is predicted to be 4 ℃ (the third working condition parameter value), the first alarm threshold is the upper limit value of the alarm threshold range of the first target alarm device in the time period (target time period) marked with 0, the first alarm threshold is 6 ℃, 8 ℃, 6 ℃, the first minimum value min1=6 ℃, the first average value a1=6.7 ℃, the first maximum value is ma1=8 ℃, the preset adjustment unit is 0.3 ℃, and because the temperature value of 12 months 1 day is smaller than Min1, the upper limit value of the alarm threshold range of the first target alarm device is adjusted to be 6 ℃ so as to avoid false alarm of the first target alarm device in 12 months 1 day, to illustrate other cases, assuming that the temperature value of 12 months 1 day is predicted to be 6.3 ℃, the direction of Min1-A1 is increased to exceed the temperature value of 6.3 ℃, the upper limit value of the alarm threshold range of the first target alarm instrument is adjusted to be 6.6 ℃ so as to avoid false alarm of the first target alarm instrument at 12 months 1, assuming that the temperature value of 12 months 1 day is predicted to be 6.7 ℃, the direction of A1-Max1 is increased to exceed the temperature value of 6.7 ℃, the upper limit value of the alarm threshold range of the first target alarm instrument is adjusted to be 7 ℃ so as to avoid false alarm of the first target alarm instrument at 12 months 1, if the upper limit value of the alarm threshold range of the first target alarm instrument is set unreasonably under the current time node so as to cause false alarm of the first target alarm, the upper limit value of the alarm threshold range of the first target alarm instrument is only finely adjusted, in order to avoid false alarms caused by unreasonable setting of the upper limit value of the alarm threshold range of the first target alarm instrument in the next time node as far as possible, it is noted that the predicted condition that the temperature value of the next time node is larger than the first maximum value will not occur in general.

The above step S2036 may be implemented as:

acquiring a second minimum value, a second average value and a second maximum value, wherein the second minimum value is the minimum value in all the second alarm thresholds, the second average value is the average value of all the second alarm thresholds, and the second maximum value is the maximum value in all the second alarm thresholds;

setting a lower limit value of an alarm threshold range of the first target alarm device to the second minimum value when the third operating parameter value does not satisfy a fourth condition, setting a lower limit value of an alarm threshold range of the first target alarm device to the second average value when the third operating parameter value satisfies the fourth condition and satisfies a fifth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the third operating parameter value, setting the lower limit value of the alarm threshold range of the first target alarm device to the second maximum value when the third operating parameter value does not satisfy the fifth condition and satisfies the sixth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the third operating parameter value, and setting the lower limit value of the alarm threshold range of the first target alarm device to the third operating parameter value is smaller than the third operating parameter value or the third operating parameter value is smaller than the third operating condition or the fourth operating condition.

In this embodiment, in some embodiments, when the operating condition parameter is a temperature value and the temperature value within a year is in normal distribution, the first minimum value min2=2deg.c, the second average value a2=3.5 deg.c, the second maximum value ma2=4.5 deg.c, the preset adjustment unit is 0.3 deg.c, the temperature value of the time zone of the predicted 12 month 1 day is assumed to be 2.5 deg.c, the lower limit value of the alarm threshold range of the first target alarm instrument is adjusted to be 2.3 deg.c from the direction of the A2-Min2 until the temperature value is lower than 2.5 deg.c, so as to avoid that the temperature value of the time zone of the predicted 12 month 1 day is 4 deg.c, the lower limit value of the alarm threshold range of the first target alarm instrument is reduced from the direction of the Max2-A2 deg.c until the temperature value is lower than 4 deg.c, the lower limit value of the alarm threshold range of the first target alarm instrument is adjusted to be 3.9 deg.c, the lower limit value of the predicted to be 4.c, the lower limit value of the first target alarm instrument is assumed to be 4 deg.c, the lower limit value of the alarm threshold value of the first target alarm instrument is not lower than the threshold value of the predicted to be 2 month 1 day 1, and the lower limit value of the alarm threshold value of the first target alarm instrument is not required to be set to be lower than the threshold value of the first target alarm instrument is not reasonably set to be equal to the threshold value.

After the step S2032, the method further includes:

step S301, when the distribution states of the second operating condition parameter values in the plurality of continuous historical time periods are not normally distributed and the target alarm data represents that the first operating condition parameter value is greater than the upper limit value of the alarm threshold range of the first target alarm device, acquiring a third alarm threshold value and a fourth operating condition parameter value in the plurality of continuous historical time periods, and adjusting the alarm threshold range of the first target alarm device according to all the third alarm threshold value and the fourth operating condition parameter value to reduce the probability of false alarm of the first target alarm device, wherein the third alarm threshold value corresponds to the historical time period one by one, the third alarm threshold value is the upper limit value of the alarm threshold range of the target alarm device in one historical time period, and the fourth operating condition Kuang Can value is the value of the target operating condition parameter in the current time node;

Step S302, when the distribution states of the second operating condition parameter values in the plurality of continuous historical time periods are not normally distributed and the target alarm data represents that the first operating condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm device, obtaining a fourth alarm threshold value in the plurality of continuous historical time periods, and adjusting the alarm threshold range of the first target alarm device according to all the fourth alarm threshold value and the fourth operating condition parameter value to reduce the probability of false alarm of the first target alarm device, wherein the fourth alarm threshold value corresponds to the historical time period one by one, and one fourth alarm threshold value is the lower limit value of the alarm threshold range of the target alarm device in one historical time period.

The step S301 may be implemented as:

sequencing the third alarm thresholds according to a first sequence, wherein the first sequence is that the third alarm thresholds are from small to large;

obtaining a third minimum value, a third average value and a third maximum value, wherein the third minimum value is the Mth third alarm threshold value, the third average value is the average value from the Mth third alarm threshold value to the Nth third alarm threshold value, the third maximum value is the Nth third alarm threshold value, and M is less than N, and M are all positive integers;

setting an upper limit value of an alarm threshold range of the first target alarm device to the third minimum value and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm device by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm device is greater than the fourth operating parameter value when the fourth operating parameter value does not satisfy the eighth condition and the fourth operating parameter value satisfies the ninth condition, setting the upper limit value of the alarm threshold range of the first target alarm device to the third average value and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm device by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm device is greater than the fourth operating parameter value, and setting the upper limit value of the threshold range of the first target alarm device to the fourth average value or the fourth average value to be greater than the fourth average value when the fourth operating parameter value does not satisfy the ninth condition and setting the upper limit value of the alarm threshold range of the fourth target alarm device to the fourth average value or the fourth average value to be less than the fourth average value;

In this embodiment, in some embodiments, if the operating condition parameter is a temperature value, as shown in fig. 3, and if the temperature value within one year is not normally distributed and a false alarm caused by unreasonable setting of the upper limit value of the alarm threshold range of the first target alarm device occurs, the third alarm thresholds of a plurality of continuous periods in one year are acquired, and are respectively 1 °, 2 °, 4 °, 5 °, 6 °, 7 °, 8 °, 10 °, 11 °, 1 °, 2 °, 10 °, 11 °, and 1 °, 10 °, 11 °, and 2 °, in order from small to large, a third minimum value min3=4 ℃, a third average value a3=5.7 ℃, a third maximum value ma3=8 ℃, a preset adjustment unit is 1 °, the current time node is 12 months 1 day, and the temperature value on the 12 months 1 day is assumed to be 4.2 ℃, and is increased from the direction of Min3-A3 until the temperature value exceeds 4.2 ℃, the upper limit value of the alarm threshold range of the first target alarm instrument is adjusted to 4.3 ℃ to avoid false alarm of the first target alarm instrument in 12 months and 2 days, if the temperature value of the first target alarm instrument in 12 months and 1 days is predicted to be 6.1 ℃, the direction of A3-Max3 is gradually increased until the temperature value exceeds 6.1 ℃, the upper limit value of the alarm threshold range of the first target alarm instrument is adjusted to 6.3 ℃ to avoid false alarm of the first target alarm instrument in 12 months and 2 days, if the upper limit value of the alarm threshold range of the first target alarm instrument is set unreasonably under the current time node, the upper limit value of the alarm threshold range of the first target alarm instrument is only finely adjusted to avoid false alarm caused by the unreasonable upper limit value of the alarm threshold range of the first target alarm instrument in the next time node, in general, a situation that the temperature value of the current time node is greater than the third maximum value does not occur.

The step S302 may be implemented as:

sorting the fourth alarm thresholds according to a second sequence, wherein the first sequence is from small to large;

acquiring a fourth minimum value, a fourth average value and a fourth maximum value, wherein the fourth minimum value is the Q-th fourth alarm threshold value, the fourth average value is the average value from the Q-th fourth alarm threshold value to the P-th fourth alarm threshold value, the fourth maximum value is the P-th fourth alarm threshold value, Q < P, and Q and P are positive integers; when the fourth operating parameter value does not satisfy the tenth condition, the lower limit value of the alarm threshold range of the first target alarm device is set to the fourth minimum value, when the fourth operating parameter value satisfies the tenth condition and satisfies the eleventh condition, the lower limit value of the alarm threshold range of the first target alarm device is set to the fourth average value, the lower limit value of the alarm threshold range of the first target alarm device is successively decreased by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth operating parameter value, and when the fourth operating parameter value does not satisfy the eleventh condition and satisfies the twelfth condition, the lower limit value of the alarm threshold range of the first target alarm device is set to the fourth maximum value, and the lower limit value of the alarm threshold range of the first target alarm device is successively decreased by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth average value or the fourth average value, and the lower limit value is successively smaller than the fourth operating parameter value or the fourth average value.

In this embodiment, in some embodiments, the operating condition parameter is a temperature value, if the temperature value within one year is not normally distributed and a false alarm caused by unreasonable setting of the lower limit value of the alarm threshold range of the first target alarm instrument occurs, a fourth alarm threshold value of a plurality of continuous periods in one year is obtained, a fourth minimum value min4=2 ℃, a fourth average value a4=3.5 ℃, a fourth maximum value ma4=4.5 ℃, a preset adjustment unit is 0.3 °, the current time node is 12 months 1 day, the temperature value of the 12 months 1 day is assumed to be 4.2 ℃, the temperature value is decreased from the direction of A4-Min4 until the temperature value is lower than 2.5 ℃, the lower limit value of the alarm threshold range of the first target alarm instrument is adjusted to be 2.3 ℃ so as to avoid false alarm of the first target alarm instrument in 12 months 2 days, the temperature value of the 12 months 1 day is assumed to be 4 ℃, the temperature value of the first target alarm instrument is decreased from the direction of Max4-A4, the lower limit value of the alarm threshold range of the first target alarm instrument is adjusted to 3.9 ℃ until the temperature value is lower than 4 ℃, so as to avoid false alarm of the first target alarm instrument in 12 months and 2 days, the lower limit value of the alarm threshold range of the first target alarm instrument is adjusted to 4.5 ℃ under the assumption that the temperature value of the first target alarm instrument in 12 months and 1 day is 4.7 ℃ so as to avoid false alarm of the first target alarm instrument in 12 months and 2 days, if the lower limit value of the alarm threshold range of the first target alarm instrument is set unreasonably under the current time node to cause false alarm of the first target alarm instrument, the lower limit value of the alarm threshold range of the first target alarm instrument is only finely adjusted so as to avoid false alarm caused by the unreasonable setting of the lower limit value of the alarm threshold range of the first target alarm instrument in the next time node as much as possible, it will generally not occur that the temperature value of the current time node is less than the fourth minimum value.

Through the embodiment, if the DCS system has the first target alarm data set, the first target alarm instrument is indicated to alarm, at this time, whether the target equipment is in a normal running state is determined, if the target equipment is in the normal running state, the alarm threshold range of the first target alarm instrument is indicated to be unreasonably set to cause false alarm of the first target alarm instrument, at this time, the alarm threshold range of the first target alarm instrument is adjusted to reduce the false alarm probability of the first target alarm instrument, so that the problem that the alarm data quantity generated by false alarm of the alarm instrument is increased due to the fact that the alarm threshold cannot be automatically adjusted in the prior art is solved.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.

The embodiment of the application also provides a monitoring system, and the monitoring system can be used for executing the method provided by the embodiment of the application. The monitoring system is used for implementing the above embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the monitoring system described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

The following describes a monitoring system provided by an embodiment of the present application.

Fig. 4 is a schematic diagram of a monitoring system according to an embodiment of the application. As shown in fig. 4, the monitoring system includes:

a detection unit 10, configured to detect whether a first target alarm data set exists in the DCS system;

a determining unit 20, configured to determine whether the target device is in a normal operating state when the first target alarm data set exists in the DCS system;

And a first adjusting unit 30, configured to adjust an alarm threshold range of the first target alarm device at least when the target device is in the normal operation state, so as to reduce a probability of false alarm of the first target alarm device.

In an alternative embodiment, the detection unit includes:

a first acquisition module, configured to acquire a plurality of alarm data sets from the DCS system, where the alarm data sets include a plurality of alarm data, one of the alarm data sets corresponds to one of the alarm devices, one of the alarm data sets is reported to the DCS system by the corresponding alarm device, and the alarm data of one of the alarm data sets indicates that a value of a working condition parameter of the production equipment to which the alarm device belongs is not within an alarm threshold range of the alarm device;

the first determining module is used for determining whether a second target alarm data set exists in the alarm data sets or not, wherein the second target alarm data set is the alarm data set with the quantity of the alarm data greater than or equal to the preset quantity;

the second determining module is used for determining whether the safety level of the alarm instrument corresponding to the second target alarm data set is greater than a preset level, and the safety level of the alarm instrument represents the importance of the production equipment to which the alarm instrument belongs;

and a third determining module, configured to determine that the second target alarm data set is the first target alarm data set when the security level of the alarm device corresponding to the second target alarm data set is greater than the preset level.

In order to ensure an accurate determination of the false alarm of the alarm instrument, in an alternative embodiment, the first adjustment unit is configured to:

The first adjusting unit includes:

the second acquisition module is used for acquiring second working condition parameter values of a plurality of continuous historical time periods, the historical time periods are in one-to-one correspondence with the second working condition parameter values, and the second working condition parameter values are values of the target working condition parameters in the corresponding historical time periods;

A fourth determining module, configured to determine whether distribution states of the second operating condition parameter values of a plurality of continuous historical time periods are normally distributed;

a fifth determining module, configured to determine a third operating condition parameter value when distribution states of the second operating condition parameter values in a plurality of continuous historical time periods are normally distributed, where the third operating condition parameter value is a value of the target operating condition parameter at a time node next to the current time node;

A sixth determining module, configured to determine a plurality of target time periods according to the second operating condition parameter value, where the target time periods are the corresponding historical time periods in which the second operating condition parameter value is the same as the third operating condition parameter value;

the first adjusting module is configured to obtain a plurality of first alarm thresholds according to the target time period when the target alarm data indicates that the first operating condition parameter value is greater than an upper limit value of an alarm threshold range of the first target alarm instrument, and adjust the upper limit value of the alarm threshold range of the first target alarm instrument according to all the first alarm thresholds and the third operating condition parameter value to reduce the probability of false alarm of the first target alarm instrument, where the first alarm threshold value corresponds to the target time period one by one, and one of the first alarm thresholds is the upper limit value of the alarm threshold range of the first target alarm instrument in one of the target time periods;

And the second adjusting module is used for acquiring a plurality of second alarm thresholds according to the target time period under the condition that the first condition parameter value represented by the target alarm data is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, and adjusting the lower limit value of the alarm threshold range of the first target alarm instrument according to all the second alarm thresholds and the third condition parameter value so as to reduce the probability of false alarm of the first target alarm instrument, wherein the second alarm thresholds are in one-to-one correspondence with the target time period, and one second alarm threshold is the lower limit value of the alarm threshold range of the first target alarm instrument in one target time period.

In an alternative embodiment, the first adjusting module includes:

The first acquisition sub-module is used for acquiring a first minimum value, a first average value and a first maximum value, wherein the first minimum value is the minimum value in all the first alarm thresholds, the first average value is the average value of all the first alarm thresholds, and the first maximum value is the maximum value in all the first alarm thresholds;

the first adjusting sub-module is configured to set an upper limit value of an alarm threshold range of the first target alarm instrument to the first minimum value and sequentially increment the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjusting unit until the upper limit value of the alarm threshold range of the first target alarm instrument is greater than the third operating parameter value when the third operating parameter value simultaneously satisfies the first condition and the second condition; setting an upper limit value of an alarm threshold range of the first target alarm device to the first average value when the third operating parameter value does not satisfy the second condition and the third operating parameter value satisfies the third condition, sequentially increasing the upper limit value of the alarm threshold range of the first target alarm device by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm device is larger than the third operating parameter value, setting the upper limit value of the alarm threshold range of the first target alarm device to the first maximum value when the third operating parameter value does not satisfy the third condition, setting the first condition to the third operating parameter value to be larger than or equal to the first minimum value, and setting the second condition to the third operating parameter value to be smaller than the first average value, and setting the third operating parameter value to be smaller than the first maximum value.

The second adjustment module includes:

the second acquisition sub-module is used for acquiring a second minimum value, a second average value and a second maximum value, wherein the second minimum value is the minimum value in all the second alarm thresholds, the second average value is the average value of all the second alarm thresholds, and the second maximum value is the maximum value in all the second alarm thresholds;

and a second adjustment sub-module configured to, when the third operating parameter value does not satisfy the fourth condition, set a lower limit value of an alarm threshold range of the first target alarm device to the second minimum value, when the third operating parameter value satisfies the fourth condition and satisfies a fifth condition, set a lower limit value of an alarm threshold range of the first target alarm device to the second average value, sequentially decrease the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the third operating parameter value, and when the third operating parameter value does not satisfy the fifth condition and satisfies a sixth condition, set the lower limit value of the alarm threshold range of the first target alarm device to the second maximum value, sequentially decrease the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the third operating parameter value, and the third operating parameter value is smaller than the third operating parameter value or the fifth operating parameter value, and the lower than the third operating parameter value is smaller than the third operating parameter value or the sixth operating parameter value.

The above monitoring system further includes:

a second adjusting unit, configured to obtain a third alarm threshold value and a fourth alarm threshold value of the plurality of continuous historical time periods when the distribution states of the second operating condition parameter values of the plurality of continuous historical time periods are not normally distributed and the target alarm data represents that the first operating condition parameter value is greater than an upper limit value of an alarm threshold value range of the first target alarm device, adjust the alarm threshold value range of the first target alarm device according to all the third alarm threshold value and the fourth operating condition parameter value, so as to reduce a probability of false alarm of the first target alarm device, wherein the third alarm threshold value corresponds to the historical time period one by one, the third alarm threshold value is an upper limit value of the alarm threshold value range of the target alarm device in one of the historical time periods, and the fourth operating condition Kuang Can value is a value of the target operating condition parameter in the current time node;

And a third adjustment unit configured to obtain a fourth alarm threshold value of the plurality of continuous historical time periods when the distribution states of the second operating condition parameter values of the plurality of continuous historical time periods are not normally distributed and the target alarm data represents that the first operating condition parameter value is smaller than the lower limit value of the alarm threshold value range of the first target alarm device, adjust the alarm threshold value range of the first target alarm device according to all the fourth alarm threshold value and the fourth operating condition parameter value to reduce the probability of false alarm of the first target alarm device, wherein the fourth alarm threshold value corresponds to the historical time period one by one, and the fourth alarm threshold value is the lower limit value of the alarm threshold value range of the target alarm device in one historical time period.

The second adjusting unit includes:

the first sequencing module is used for sequencing the third alarm thresholds according to a first sequence, wherein the first sequence is from small to large;

the third acquisition module is used for acquiring a third minimum value, a third average value and a third maximum value, wherein the third minimum value is the Mth third alarm threshold value, the third average value is the average value from the Mth third alarm threshold value to the Nth third alarm threshold value, the third maximum value is the Nth third alarm threshold value, and M is less than N, and M are all positive integers;

a first adjustment module configured to set an upper limit value of an alarm threshold range of the first target alarm device to the third minimum value when the fourth operating parameter value satisfies both the seventh condition and the eighth condition, sequentially increment an upper limit value of the alarm threshold range of the first target alarm device by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm device is larger than the fourth operating parameter value, set the upper limit value of the alarm threshold range of the first target alarm device to the third average value when the fourth operating parameter value does not satisfy the eighth condition and the fourth operating parameter value satisfies the ninth condition, sequentially increasing the upper limit value of the alarm threshold range of the first target alarm device by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm device is larger than the fourth operating parameter value, and setting the upper limit value of the alarm threshold range of the first target alarm device to the third maximum value when the fourth operating parameter value does not satisfy the ninth condition, wherein the seventh condition is that the fourth operating parameter value is larger than or equal to the third minimum value, the eighth condition is that the fourth operating parameter value is smaller than the third average value, and the ninth condition is that the fourth operating parameter value is smaller than the third maximum value;

The second adjusting unit includes:

the second sorting module is used for sorting the fourth alarm thresholds according to a second sequence, wherein the first sequence is from small to large;

a fourth obtaining module, configured to obtain a fourth minimum value, a fourth average value, and a fourth maximum value, where the fourth minimum value is a Q-th fourth alarm threshold, the fourth average value is an average value from the Q-th fourth alarm threshold to the P-th fourth alarm threshold, the fourth maximum value is the P-th fourth alarm threshold, Q < P, and Q and P are both positive integers;

a second adjustment module configured to set a lower limit value of an alarm threshold range of the first target alarm device to the fourth minimum value when the fourth operating parameter value does not satisfy the tenth condition, set a lower limit value of the alarm threshold range of the first target alarm device to the fourth average value when the fourth operating parameter value satisfies the tenth condition and satisfies the eleventh condition, sequentially decrease the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth operating parameter value, set a lower limit value of the alarm threshold range of the first target alarm device to the fourth maximum value when the fourth operating parameter value does not satisfy the eleventh condition and satisfies the twelfth condition, sequentially decrease the lower limit value of the alarm threshold range of the first target alarm device to the fourth average value until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth parameter value or the fourth average value is smaller than the fourth parameter value, and equal to the fourth average value is smaller than the fourth parameter value or the fourth average value.

The monitoring system comprises a processor and a memory, wherein the detection unit, the determination unit, the first adjustment unit and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions. The modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.

The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel can be provided with one or more than one kernel, and the problem that the quantity of alarm data generated by false alarm of an alarm instrument is increased because the alarm threshold cannot be automatically adjusted in the prior art is solved by adjusting the kernel parameters.

The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.

The embodiment of the invention provides a computer readable storage medium, which comprises a stored program, wherein the program is used for controlling equipment where the computer readable storage medium is located to execute the alarm threshold adjusting method.

The embodiment of the invention provides a processor, which is used for running a program, wherein the program runs to execute the method for adjusting the alarm threshold.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

1) In the method for adjusting the alarm threshold, if the DCS system has the first target alarm data set, the first target alarm instrument is indicated to alarm, at the moment, whether the target equipment is in a normal operation state is determined, if the target equipment is in the normal operation state, the alarm threshold range of the first target alarm instrument is indicated to be unreasonably set to cause false alarm of the first target alarm instrument, at the moment, the alarm threshold range of the first target alarm instrument is adjusted to reduce the false alarm probability of the first target alarm instrument, and therefore the problem that the alarm threshold cannot be automatically adjusted in the prior art, and the quantity of alarm data generated by false alarm of the alarm instrument is increased is solved.

2) In the monitoring system, if the DCS system has the first target alarm data set, the first target alarm instrument is indicated to alarm, at the moment, whether the target equipment is in a normal operation state is determined, if the target equipment is in the normal operation state, the alarm threshold range of the first target alarm instrument is indicated to be unreasonably set to cause false alarm of the first target alarm instrument, at the moment, the alarm threshold range of the first target alarm instrument is adjusted to reduce the false alarm probability of the first target alarm instrument, and therefore the problem that the alarm threshold cannot be automatically adjusted in the prior art, and the quantity of alarm data generated by false alarm of the alarm instrument is increased is solved.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An alarm threshold adjustment method, wherein the method is applied to a monitoring system, the monitoring system is in communication connection with a DCS system, the DCS system is in communication connection with a plurality of alarm instruments, the alarm instruments are installed on production equipment, and the method comprises:

detecting whether a first target alarm data set exists in the DCS system, wherein the first target alarm data set comprises a plurality of target alarm data, the first target alarm data set is reported to the DCS system by a first target alarm instrument, the first target alarm instrument is one of a plurality of alarm instruments on target equipment, the target equipment is one of a plurality of production equipment, the target alarm data represents that a first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument or represents that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, the first working condition parameter value is the value of a target working condition parameter at a current time node, and the target working condition parameter is one of a plurality of working condition parameters of the target equipment;

Determining whether the target equipment is in a normal running state or not under the condition that the first target alarm data set exists in the DCS system;

and at least under the condition that the target equipment is in the normal running state, adjusting the alarm threshold range of the first target alarm instrument so as to reduce the probability of false alarm of the first target alarm instrument.

2. The method of claim 1, wherein detecting whether a first target alarm data set is present in the DCS system comprises:

acquiring a plurality of alarm data sets from the DCS system, wherein each alarm data set comprises a plurality of alarm data, one alarm data set corresponds to one alarm instrument, one alarm data set is reported to the DCS system by the corresponding alarm instrument, and the alarm data of one alarm data set indicates that the value of one working condition parameter of the production equipment to which one alarm instrument belongs is not in the alarm threshold range of the alarm instrument;

3. The method of claim 1, wherein adjusting the alarm threshold range of the first target alarm instrument to reduce the probability of false alarms of the first target alarm instrument at least if the target device is in the normal operating state comprises:

and under the condition that the target equipment is in the normal running state and a second target alarm instrument does not alarm, adjusting the alarm threshold range of the first target alarm instrument so as to reduce the probability of false alarm of the first target alarm instrument, wherein the second target alarm instrument is different from the alarm instrument of the first target alarm instrument, and the second target alarm instrument can cause the first target alarm instrument to alarm when alarming, or the second target alarm instrument can cause the first target alarm instrument to alarm when alarming.

4. A method according to claim 1 or 3, wherein adjusting the alarm threshold range of the first target alarm instrument to reduce the probability of false alarms of the first target alarm instrument comprises:

acquiring second working condition parameter values of a plurality of continuous historical time periods, wherein the historical time periods correspond to the second working condition parameter values one by one, and the second working condition parameter values are values of the target working condition parameters in the corresponding historical time periods;

determining whether the distribution state of the second working condition parameter values of a plurality of continuous historical time periods is normal distribution;

under the condition that the distribution states of the second working condition parameter values of a plurality of continuous historical time periods are normally distributed, determining a third working condition parameter value, wherein the third working condition parameter value is the value of the target working condition parameter at the next time node of the current time node;

determining a plurality of target time periods according to the second working condition parameter values, wherein the target time periods are the corresponding historical time periods with the second working condition parameter values being the same as the third working condition parameter values;

under the condition that the target alarm data represent that the first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument, acquiring a plurality of first alarm thresholds according to the target time period, and adjusting the upper limit value of the alarm threshold range of the first target alarm instrument according to all the first alarm thresholds and the third working condition parameter value so as to reduce the probability of false alarm of the first target alarm instrument, wherein the first alarm thresholds are in one-to-one correspondence with the target time period, and one first alarm threshold is the upper limit value of the alarm threshold range of the first target alarm instrument in one target time period;

Under the condition that the target alarm data represent that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, acquiring a plurality of second alarm thresholds according to the target time period, and adjusting the lower limit value of the alarm threshold range of the first target alarm instrument according to all the second alarm thresholds and the third working condition parameter value so as to reduce the probability of false alarm of the first target alarm instrument, wherein the second alarm thresholds are in one-to-one correspondence with the target time period, and one second alarm threshold is the lower limit value of the alarm threshold range of the first target alarm instrument in one target time period.

5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,

according to all the first alarm threshold and the third working condition parameter values, adjusting the upper limit value of the alarm threshold range of the first target alarm instrument, wherein the method comprises the following steps: acquiring a first minimum value, a first average value and a first maximum value, wherein the first minimum value is the minimum value in all the first alarm thresholds, the first average value is the average value of all the first alarm thresholds, and the first maximum value is the maximum value in all the first alarm thresholds; setting the upper limit value of the alarm threshold range of the first target alarm instrument to be the first minimum value under the condition that the third working condition parameter value simultaneously meets the first condition and the second condition, and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjusting unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the third working condition parameter value; setting the upper limit value of the alarm threshold range of the first target alarm instrument to be the first average value when the third operating condition parameter value does not meet the second condition and the third operating condition parameter value meets the third condition, sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjusting unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the third operating condition parameter value, setting the upper limit value of the alarm threshold range of the first target alarm instrument to be the first maximum value when the third operating condition parameter value does not meet the third condition, wherein the first condition is that the third operating condition parameter value is larger than or equal to the first minimum value, the second condition is that the third operating condition parameter value is smaller than the first average value, and the third operating condition parameter value is smaller than the first maximum value;

Or alternatively, the first and second heat exchangers may be,

according to all the second alarm threshold and the third working condition parameter values, adjusting the lower limit value of the alarm threshold range of the first target alarm instrument, wherein the lower limit value comprises: acquiring a second minimum value, a second average value and a second maximum value, wherein the second minimum value is the minimum value in all the second alarm thresholds, the second average value is the average value of all the second alarm thresholds, and the second maximum value is the maximum value in all the second alarm thresholds; setting the lower limit value of the alarm threshold range of the first target alarm instrument to the second minimum value under the condition that the third operating parameter value does not meet the fourth condition, setting the lower limit value of the alarm threshold range of the first target alarm instrument to the second average value under the condition that the third operating parameter value meets the fourth condition and meets the fifth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm instrument by the preset adjusting unit until the lower limit value of the alarm threshold range of the first target alarm instrument is smaller than the third operating parameter value, setting the lower limit value of the alarm threshold range of the first target alarm instrument to the second maximum value under the condition that the third operating parameter value does not meet the fifth condition and meets the sixth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm instrument by the preset adjusting unit until the lower limit value of the alarm threshold range of the first target alarm instrument is smaller than the third operating parameter value, and setting the lower limit value of the alarm threshold range of the first target alarm instrument to be smaller than the third operating parameter value, and the third operating condition is smaller than the third operating condition or the fourth operating condition or the sixth condition.

6. The method of claim 4, wherein after determining whether the distribution state of the second operating parameter values for a plurality of consecutive historical time periods is normally distributed, the method further comprises:

under the condition that the distribution states of the second working condition parameter values of the plurality of continuous historical time periods are not normally distributed and the target alarm data represent that the first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument, acquiring a plurality of third alarm threshold values and fourth working condition parameter values of the continuous historical time periods, and adjusting the alarm threshold range of the first target alarm instrument according to all the third alarm threshold values and the fourth working condition parameter values to reduce the probability of false alarm of the first target alarm instrument, wherein the third alarm threshold value corresponds to the historical time periods one by one, one is the upper limit value of the alarm threshold range of the target alarm instrument in one historical time period, and the fourth working condition Kuang Can value is the value of the target working condition parameter in the current time node;

under the condition that the distribution states of the second working condition parameter values of the plurality of continuous historical time periods are not normally distributed and the target alarm data represent that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, a plurality of continuous fourth alarm thresholds of the historical time periods are obtained, the alarm threshold range of the first target alarm instrument is adjusted according to all the fourth alarm thresholds and the fourth working condition parameter values so as to reduce the probability of false alarm of the first target alarm instrument, the fourth alarm threshold corresponds to the historical time periods one by one, and one fourth alarm threshold is the lower limit value of the alarm threshold range of the target alarm instrument in one historical time period.

7. The method of claim 6, wherein the step of providing the first layer comprises,

adjusting the alarm threshold range of the first target alarm instrument according to all the third alarm threshold and the fourth working condition parameter values, including: sequencing the third alarm thresholds according to a first sequence, wherein the first sequence is from small to large; obtaining a third minimum value, a third average value and a third maximum value, wherein the third minimum value is an Mth third alarm threshold value, the third average value is an average value from the Mth third alarm threshold value to an Nth third alarm threshold value, the third maximum value is the Nth third alarm threshold value, M is less than N, and M are positive integers; setting an upper limit value of an alarm threshold range of the first target alarm instrument to the third minimum value and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by a preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the fourth working parameter value when the fourth working parameter value does not satisfy the eighth condition and the fourth working parameter value satisfies the ninth condition, setting the upper limit value of the alarm threshold range of the first target alarm instrument to the third average value and sequentially increasing the upper limit value of the alarm threshold range of the first target alarm instrument by the preset adjustment unit until the upper limit value of the alarm threshold range of the first target alarm instrument is larger than the fourth working parameter value, setting the upper limit value of the alarm threshold range of the first target instrument to the fourth average value when the fourth working parameter value does not satisfy the ninth condition, setting the upper limit value of the alarm threshold range of the first target alarm instrument to the fourth average value or the fourth average value to the fourth average value is smaller than the fourth average value when the fourth working parameter value does not satisfy the ninth condition;

Or alternatively, the first and second heat exchangers may be,

adjusting the alarm threshold range of the first target alarm instrument according to all the fourth alarm threshold and the fourth working condition parameter value, including: sorting the fourth alarm thresholds according to a second sequence, wherein the first sequence is from small to large; acquiring a fourth minimum value, a fourth average value and a fourth maximum value, wherein the fourth minimum value is the Q-th fourth alarm threshold value, the fourth average value is the average value from the Q-th fourth alarm threshold value to the P-th fourth alarm threshold value, the fourth maximum value is the P-th fourth alarm threshold value, Q < P, and Q and P are positive integers; setting a lower limit value of an alarm threshold range of the first target alarm device to the fourth minimum value when the fourth operating parameter value does not satisfy a tenth condition, setting a lower limit value of an alarm threshold range of the first target alarm device to the fourth average value when the fourth operating parameter value satisfies the tenth condition and satisfies an eleventh condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device by the preset adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth operating parameter value, setting the lower limit value of the alarm threshold range of the first target alarm device to the fourth maximum value when the fourth operating parameter value does not satisfy the eleventh condition and satisfies the twelfth condition, sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device to the fourth adjustment unit until the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth parameter value is smaller than the fourth average value or the fourth average value, and sequentially decrementing the lower limit value of the alarm threshold range of the first target alarm device is smaller than the fourth parameter value is smaller than the fourth average value or the fourth average value when the fourth operating parameter value is smaller than the fourth average value or the fourth operating parameter value is smaller than the fourth condition.

8. A monitoring system, characterized in that, monitored control system and DCS system communication connection, DCS system and a plurality of alarm instrument communication connection, alarm instrument installs on production facility, monitored control system includes:

the detection unit is used for detecting whether a first target alarm data set exists in the DCS system or not, the first target alarm data set comprises a plurality of target alarm data, the first target alarm data set is reported to the DCS system by a first target alarm instrument, the first target alarm instrument is one of a plurality of alarm instruments on target equipment, the target equipment is one of a plurality of production equipment, the target alarm data represents that a first working condition parameter value is larger than the upper limit value of the alarm threshold range of the first target alarm instrument or represents that the first working condition parameter value is smaller than the lower limit value of the alarm threshold range of the first target alarm instrument, the first working condition parameter value is the value of a target working condition parameter at a current time node, and the target working condition parameter is one of a plurality of working condition parameters of the target equipment;

the determining unit is used for determining whether the target equipment is in a normal running state or not under the condition that the first target alarm data set exists in the DCS system;

The first adjusting unit is used for adjusting the alarm threshold range of the first target alarm instrument at least under the condition that the target equipment is in the normal running state so as to reduce the probability of false alarm of the first target alarm instrument.

9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to perform the method of adjusting an alarm threshold according to any one of claims 1 to 7.

10. A processor, characterized in that the processor is adapted to run a program, wherein the program, when run, performs the method of adjusting an alarm threshold according to any of claims 1 to 7.