An integrated management and control system for operation and maintenance of factory equipment

Abstract

The present invention relates to the field of operation and maintenance management technology, and in particular to an operation and maintenance integrated control system for factory equipment. It comprises: a detection unit; a data analysis unit, which is connected to the detection unit, and is used to determine whether the operating state of the equipment meets the preset standard according to the output of each device measured by the detection unit, and when it is determined that the operating state of the equipment does not meet the preset standard, determine the reason why the operating state of the equipment does not meet the preset standard according to the output. The present invention makes a preliminary judgment on the operating state of the equipment by directly detecting the output of the equipment and comparing it with the preset standard, so as to determine the reason for not meeting the preset standard when it is determined that the preset standard is not met. At the same time, through multiple experiments, different fault causes corresponding to different monitoring data are determined, so as to quickly determine the corresponding cause and adjust the corresponding parameters in time, so as to ensure the stability of equipment operation.

Description

Technical Field

[0001] The present invention relates to the technical field of operation and maintenance management, and in particular to an operation and maintenance integrated control system for factory equipment. Background Art

[0002] Safety production is the premise for enterprises to carry out good production and operation. Without safety production, all work may be useless. Therefore, governments and departments at all levels from the central to the local level all emphasize safety production and pay close attention to safety production. Equipment management is the guarantee of enterprise safety production. According to statistics on safety accidents, excluding individual human factors, more than 80% of safety accidents are caused by unsafe factors of equipment, especially some pressure vessels, power operation equipment, electrical equipment, etc., which are not well managed, which are hidden dangers of accidents. To ensure safety production, it is necessary to have well-functioning equipment, and good equipment management will eliminate most potential safety hazards and prevent the occurrence of most safety accidents.

[0003] Chinese Patent Publication No.: CN109919330A discloses an operation and maintenance supervision information management platform, including: interconnected equipment management units: used to manage equipment; equipment status detection unit: used to detect the status of equipment; equipment fault management unit: used to manage equipment faults; fault analysis and statistics unit: used to analyze and count the faults that occur; weekly statistical analysis unit: used to count and analyze weekly reports; supervision report unit: used to manage deductions and faults; reported equipment management unit: used to manage reported equipment; user work unit: used to manage user work; data initialization unit: used to initialize users, roles and permissions; role and organization permission control unit: used to control the permissions of roles and the permissions of organizations. It can be seen that the operation and maintenance supervision information management platform has the following problems: it can only classify faults when they occur, and cannot predict the operating status of the equipment based on the detection results, so it cannot predict faults, and thus cannot ensure the stability of equipment operation. Summary of the invention

[0004] To this end, the present invention provides an integrated management and control system for operation and maintenance of factory equipment, so as to overcome the problem in the prior art that the stability of equipment operation cannot be guaranteed.

[0005] To achieve the above objectives, the present invention provides a comprehensive operation and maintenance management system for factory equipment. It includes:

[0006] A detection unit, which is connected to several devices in the factory and is used to detect the output of the target product of each device and the feed amount of raw materials of each device;

[0007] a data analysis unit connected to the detection unit, for determining whether the operating state of the equipment meets the preset standard according to the output of each equipment, and when it is determined that the operating state of the equipment does not meet the preset standard, determining the reason why the operating state of the equipment does not meet the preset standard according to the output of the target product of each equipment;

[0008] The reasons why the operation status of the equipment does not meet the preset standard include: the output demand does not meet the preset standard, the equipment production status reason, and the operation of the upstream production line of the equipment does not meet the preset standard;

[0009] The reasons for the equipment production status include: equipment aging and equipment maintenance time interval being longer than the preset standard.

[0010] Further, the data analysis unit determines whether the operation state of a single device meets the preset standard according to the output of the target product of each device within the detection cycle measured by the detection unit. If the output is less than the first-level preset output preset in the data analysis unit, the data analysis unit determines that the operation state of the device does not meet the preset standard and determines the reason why the operation state of the device does not meet the preset standard according to the output;

[0011] If the output is greater than the first-level preset output and less than or equal to the second-level preset output preset in the data analysis unit, the data analysis unit preliminarily determines that the operating state of the equipment does not meet the preset standard, and the data analysis unit determines whether the operating state of the equipment meets the preset standard based on the output at each time node within the preset period;

[0012] If the output is greater than the secondary preset output, the data analysis unit determines that the operating state of the equipment meets the preset standard.

[0013] Furthermore, when the data analysis unit determines that the operating status of the equipment does not meet the preset standard, the difference between the first-level preset output and the output is recorded as the output difference and the reason why the operating status of the equipment does not meet the preset standard is determined based on the output difference, including: equipment production status reasons, and the operation of the upstream production line of the equipment does not meet the preset standard.

[0014] Furthermore, when the data analysis unit determines that the reason why the production status of the equipment does not meet the preset standard is that the output demand does not meet the preset standard, the data analysis unit records the ratio of the input and output of the equipment per unit time measured by the detection unit as the demand ratio and determines the reason why the output demand does not meet the preset standard based on the demand ratio, including: the output demand is lower than the initial standard, the equipment has a fault, the output demand has changed, and the equipment is operating normally.

[0015] Furthermore, when the data analysis unit determines that the reason why the production demand does not meet the preset standard is that the production demand is lower than the initial standard, the difference between the first-level preset demand ratio and the demand ratio is recorded as the ratio difference and a correction method for the second-level preset production is set according to the ratio difference, and the correction range of each correction method for the second-level preset production is different.

[0016] Furthermore, when the data analysis unit determines that the reason why the production demand does not meet the preset standard is the influence of the service life, it calculates the status evaluation value and determines the reason why the operating status of the equipment does not meet the preset standard based on the status evaluation value, including: equipment aging and issuing an equipment update notification, and the maintenance time interval is longer than the preset standard.

[0017] Furthermore, the data analysis unit determines a reason judgment method for the operating state of the device not meeting the preset standard according to the state evaluation value, and sets the state evaluation value , where: C is the initial output of the equipment, T is the useful life of the equipment, and α is the depreciation coefficient of the equipment.

[0018] Furthermore, when the data analysis unit determines that the reason why the operating status of the equipment does not meet the preset standard is that the maintenance time interval is longer than the preset standard, the difference between the preset status evaluation value and the status evaluation value is recorded as the evaluation value difference and an adjustment method for the maintenance time of the equipment is set according to the evaluation value difference, and the adjustment range of each adjustment method for the equipment maintenance time is different.

[0019] Further, when the data analysis unit determines that the reason why the running state of the equipment does not meet the preset standard is that the operation of the upstream production line of the equipment does not meet the preset standard, the data analysis unit determines whether the running state of the equipment meets the preset standard according to the output of the upstream equipment. If the output is greater than the preset output preset in the data analysis unit, the data analysis unit determines that the running state of the equipment does not meet the preset standard and issues a maintenance notice for the equipment.

[0020] If the output is less than or equal to the preset output, the data analysis unit determines that the operating state of the device meets the preset standard and performs maintenance on the upstream device.

[0021] Furthermore, when the data analysis unit preliminarily determines that the operating state of the device does not meet the preset standard, the data analysis unit determines whether the operating state of the device meets the preset standard according to the variance value of the interval of the time nodes of outputting each operating result within the preset period.

[0022] If the variance value is less than or equal to the preset variance value, the data analysis unit determines that the operating state of the device meets the preset standard;

[0023] If the variance value is greater than the preset variance value, the data analysis unit determines that there is a hardware problem with the device and issues a hardware maintenance notification.

[0024] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention makes a preliminary judgment on the operating status of the equipment by directly detecting the output of the equipment and comparing it with the preset standard, and even predicts the corresponding possible failure through the state change of the equipment, so that when it is determined that the operation of the equipment does not meet the preset standard, the reason why the operation of the equipment does not meet the preset standard is determined. At the same time, through multiple experiments, different failure causes corresponding to different monitoring data are determined, so as to quickly determine the corresponding cause and adjust the corresponding parameters in time, so as to ensure the stability of the equipment operation.

[0025] Furthermore, the present invention calculates the output difference and compares it with the preset standard, determines the cause by the correspondence between the output difference determined through multiple experiments and the reason for not meeting the preset standard, and thus issues accurate notifications based on actual conditions, thereby further ensuring the stability of equipment operation.

[0026] Furthermore, the present invention calculates the demand ratio and compares it with the preset standard, thereby further determining the reason why the production demand does not meet the preset standard, and then performing corresponding processing according to the determined reason, thereby further ensuring the stability of equipment operation.

[0027] Furthermore, the present invention calculates the percentage difference and compares it with the preset standard, thereby determining the correction method for the secondary preset output according to the actual situation, thereby ensuring the accuracy of the judgment result, thereby further ensuring the stability of the equipment operation.

[0028] Furthermore, the present invention calculates the status evaluation value through a formula and monitoring data and compares it with a preset standard, thereby linking the service life and the loss of the equipment during use with the equipment output, thereby making a more accurate judgment on the current operating status of the equipment, so that when the equipment has operating problems, they can be discovered and repaired in time, thereby further ensuring the stability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is an overall structural block diagram of the integrated operation and maintenance management system for factory equipment according to an embodiment of the present invention;

[0030] Figure 2 A determination flow chart of a determination method of a comprehensive management and control system for operation and maintenance of factory equipment according to an embodiment of the present invention;

[0031] Figure 3 A flowchart of determining a correction method of a comprehensive management and control system for operation and maintenance of factory equipment according to an embodiment of the present invention;

[0032] Figure 4 The present invention is a flowchart for determining the adjustment method of the integrated operation and maintenance control system for factory equipment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] It should be pointed out that the data in this embodiment are obtained by comprehensive analysis and evaluation of the historical detection data and the corresponding historical detection results of the system of the present invention before the current detection. The system of the present invention comprehensively determines the values ​​of the various preset parameter standards for this detection based on the production and maintenance time under normal conditions in the historical data. It can be understood by those skilled in the art that the system of the present invention can determine the single parameter mentioned above by selecting the highest proportion of the value as the preset standard parameter according to the data distribution, using weighted summation to use the obtained value as the preset standard parameter, substituting each historical data into a specific formula and using the value obtained by the formula as the preset standard parameter or other selection methods, as long as the system of the present invention can clearly define the different specific situations in the single determination process through the obtained values.

[0039] See also Figure 1 As shown, it is an overall structural block diagram of the integrated operation and maintenance management system for factory equipment according to an embodiment of the present invention, including:

[0040] A detection unit, which is connected to several devices in the factory and is used to detect the output of the target product of each device and the feed amount of raw materials of each device;

[0041] a data analysis unit connected to the detection unit, for determining whether the operating state of the equipment meets the preset standard according to the output of each equipment, and when it is determined that the operating state of the equipment does not meet the preset standard, determining the reason why the operating state of the equipment does not meet the preset standard according to the output of the target product of each equipment;

[0042] The reasons why the operation status of the equipment does not meet the preset standard include: the output demand does not meet the preset standard, the equipment production status reason, and the operation of the upstream production line of the equipment does not meet the preset standard;

[0043] The reasons for the equipment production status include: equipment aging and equipment maintenance time interval being longer than the preset standard.

[0044] The output of the target product of each device and the feed amount of the raw material of each device are measured in a corresponding manner according to the characteristics of the material involved in the device, which can be any measurement method that can measure the amount of the material, such as mass, volume, flow, etc. In the embodiment of the present invention, a fertilizer plant is taken as an example. It is known that the standard daily output of fertilizers in the fertilizer plant is 600-750 tons per day, and the average daily output is 678 tons per day;

[0045] See also Figure 2 As shown, it is a determination flow chart of the determination method of the integrated management and control system for operation and maintenance of factory equipment in an embodiment of the present invention, wherein the data analysis unit determines the determination method for whether the operating status of the equipment meets the preset standard according to the output of the equipment within the detection period measured by the detection unit, wherein:

[0046] The first determination method is that the data analysis unit determines that the operating state of the equipment does not meet the preset standard, and the data analysis unit determines the reason why the operating state of the equipment does not meet the preset standard according to the output; the first determination method satisfies that the output is less than the first-level preset output preset in the data analysis unit; the first-level preset output is set to 600 tons per day;

[0047] The second judgment method is that the data analysis unit preliminarily determines that the operating state of the equipment does not meet the preset standard, and the data analysis unit performs a secondary judgment on whether the operating state of the equipment meets the preset standard according to the output at each time node within the preset period; the second judgment method satisfies that the output is greater than the first-level preset output and less than or equal to the second-level preset output preset in the data analysis unit; the second-level preset output is set to 678 tons per day;

[0048] The third determination mode is that the data analysis unit determines that the operating state of the equipment meets the preset standard; the third determination mode satisfies that the output is greater than the secondary preset output;

[0049] The operating status refers to the stability of the equipment operation. In this embodiment, it is reflected by parameters such as output, demand ratio, status evaluation value, and output of upstream equipment.

[0050] Specifically, under the first determination mode, the data analysis unit records the difference between the first-level preset output and the output as the output difference and determines the reason determination mode for the operating state of the equipment not meeting the preset standard according to the output difference, wherein:

[0051] The first reason determination method is that the data analysis unit determines that the reason why the operating state of the equipment does not meet the preset standard is that the output demand does not meet the preset standard; the first reason determination method satisfies that the output difference is greater than the first-level preset output difference preset in the data analysis unit; the first-level preset output difference is set to 45 tons per day;

[0052] The second reason determination method is that the data analysis unit determines that the reason why the operating state of the equipment does not meet the preset standard is the equipment production state reason, and further determines the reason why the operating state of the equipment does not meet the preset standard in combination with the service age of the equipment; the second reason determination method satisfies that the output difference is less than or equal to the first-level preset output difference and is greater than or equal to the second-level preset output difference preset in the data analysis unit; the second-level preset output difference is set to 27 tons per day;

[0053] The third cause determination method is that the data analysis unit determines that the reason why the operating status of the equipment does not meet the preset standard is that the operation of the upstream production line of the equipment does not meet the preset standard; the third cause determination method satisfies that the output difference is less than the secondary preset output difference.

[0054] Specifically, under the first cause determination mode, the data analysis unit records the ratio of the input amount to the output amount of the equipment per unit time measured by the detection unit as the demand ratio and determines the determination mode for the output demand not meeting the preset standard according to the demand ratio, wherein:

[0055] The first judgment method is that the data analysis unit judges that the reason why the output demand does not meet the preset standard is that the output demand is lower than the initial standard, and the data analysis unit corrects the secondary preset output to the corresponding value according to the demand ratio; the first judgment method satisfies that the demand ratio is less than the primary preset demand ratio preset in the data analysis unit; the primary preset demand ratio is set to 2.35;

[0056] The second judgment method is that the data analysis unit judges that the reason why the production demand does not meet the preset standard is that the equipment is faulty and issues a maintenance notice; the second judgment method satisfies that the demand ratio is greater than or equal to the preset demand ratio and is less than or equal to the secondary preset demand ratio preset in the data analysis unit; the secondary preset demand ratio is set to 3.72;

[0057] The third judgment method is that the data analysis unit judges that the reason why the production demand does not meet the preset standard is that the production demand has changed, the equipment operates normally and issues an operating parameter update instruction; the third judgment method satisfies the demand ratio greater than the secondary preset demand ratio;

[0058] See also Figure 3 As shown, it is a determination flow chart of the correction method of the integrated management and control system for operation and maintenance of factory equipment in an embodiment of the present invention. In the first determination method, the data analysis unit records the difference between the first-level preset demand ratio and the demand ratio as the ratio difference and determines the correction method for the second-level preset output according to the ratio difference, wherein:

[0059] The first correction method is that the data analysis unit uses the first correction coefficient to correct the secondary preset output to the corresponding value; the first correction method satisfies that the ratio difference is greater than the primary preset ratio difference preset in the data analysis unit; the first correction coefficient is set to 0.91, and the primary preset ratio difference is 0.47;

[0060] The second correction method is that the data analysis unit uses the second correction coefficient to correct the secondary preset output to the corresponding value; the second correction method satisfies that the ratio difference is less than or equal to the primary preset ratio difference and greater than or equal to the secondary preset ratio difference; the second correction coefficient is set to 0.94, and the secondary preset ratio difference is 0.25;

[0061] The third correction method is that the data analysis unit uses the third correction coefficient to correct the secondary preset output to the corresponding value; the third correction method satisfies that the ratio difference is less than the secondary preset ratio difference; and the third correction coefficient is set to 0.97.

[0062] Specifically, the data analysis unit calculates the state evaluation value under the second cause determination mode and determines the cause determination mode for the production state of the equipment not meeting the preset standard according to the state evaluation value, wherein:

[0063] The first reason judgment method is that the data analysis unit judges that the reason why the production status of the equipment does not meet the preset standard is that the equipment is aging and issues an equipment update notification; the first reason judgment method satisfies that the status evaluation value is greater than the preset status evaluation value preset in the data analysis unit;

[0064] The second reason judgment method is that the data analysis unit judges that the reason why the production status of the equipment does not meet the preset standard is that the maintenance time interval is longer than the preset standard, and the data analysis unit adjusts the maintenance time of the equipment to a corresponding value according to the status evaluation value; the second reason judgment method satisfies that the evaluation value is less than or equal to the preset status evaluation value; the preset status evaluation value is set to 623;

[0065] Specifically, the data analysis unit determines the reason judgment method for the operating state of the device not meeting the preset standard according to the state evaluation value, and sets the state evaluation value , where: C is the initial output of the equipment, T is the service life of the equipment, α is the depreciation coefficient of the equipment, and the depreciation coefficient is the ratio of the average output of the equipment during the service life of the equipment to the initial output.

[0066] See also Figure 4 As shown, it is a flow chart for determining the adjustment method of the integrated management and control system for operation and maintenance of factory equipment in an embodiment of the present invention. In the second cause determination method, the data analysis unit records the difference between the preset state evaluation value and the state evaluation value as the evaluation value difference and determines the adjustment method for the maintenance time of the equipment according to the evaluation value difference, and sets the initial maintenance time to 3 days, wherein:

[0067] The first adjustment method is that the data analysis unit uses the first adjustment coefficient to adjust the maintenance time of the equipment to the corresponding value; the first adjustment method satisfies that the evaluation value difference is greater than the first-level preset evaluation value difference preset in the data analysis unit; the first adjustment coefficient is set to 0.75, and the first-level preset evaluation value difference is 55;

[0068] The second adjustment method is that the data analysis unit uses the second adjustment coefficient to adjust the maintenance time of the equipment to the corresponding value; the second adjustment method satisfies that the evaluation value difference is less than or equal to the first-level preset evaluation value difference and greater than or equal to the second-level preset evaluation value difference; the second adjustment coefficient is set to 0.85, and the second-level preset evaluation value difference is 37;

[0069] The third adjustment method is that the data analysis unit uses the third adjustment coefficient to adjust the maintenance time of the equipment to a corresponding value; the third adjustment method satisfies that the evaluation value difference is less than the secondary preset evaluation value difference; and the third adjustment coefficient is set to 0.90.

[0070] Specifically, the data analysis unit determines, in the third cause determination mode, an operation determination mode for determining whether the operation state of the device meets a preset standard according to the output of the upstream device, wherein:

[0071] The first operation determination mode is that the data analysis unit determines that the operation state of the equipment does not meet the preset standard, and issues a maintenance notice for the equipment; the first operation determination mode satisfies that the output is greater than the preset output preset in the data analysis unit; the preset output is set to 700 tons;

[0072] The second operation determination mode is that the data analysis unit determines that the operation status of the device meets the preset standard and performs maintenance on the upstream device; the second operation determination mode satisfies that the output is less than or equal to the preset output.

[0073] Specifically, the data analysis unit determines, under the second determination mode, an operation determination mode for determining whether the operation state of the device meets a preset standard according to a variance value of intervals of time nodes for outputting each achievement within a preset period, wherein:

[0074] The first operation judgment mode is that the data analysis unit judges that the operation state of the device meets the preset standard; the first operation judgment mode satisfies that the variance value is less than or equal to the preset variance value preset in the data analysis unit; the preset variance value is set to 80;

[0075] The second operation judgment mode is that the data analysis unit judges that there is a hardware problem with the device and issues a hardware maintenance notification; the second operation judgment mode satisfies that the variance value is greater than the preset variance value.

[0076] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A comprehensive management and control system for operation and maintenance of factory equipment, characterized in that: include: A detection unit, which is connected to several devices in the factory and is used to detect the output of the target product of each device and the feed amount of raw materials of each device; a data analysis unit connected to the detection unit, for determining whether the operating state of the equipment meets the preset standard according to the output of each equipment, and when it is determined that the operating state of the equipment does not meet the preset standard, determining the reason why the operating state of the equipment does not meet the preset standard according to the output of the target product of each equipment; The reasons why the operation status of the equipment does not meet the preset standard include: the output demand does not meet the preset standard, the equipment production status reason, and the operation of the upstream production line of the equipment does not meet the preset standard; The reasons for the equipment production status include: equipment aging, equipment maintenance time interval longer than the preset standard; The data analysis unit determines whether the operation state of a single device meets the preset standard according to the output of the target product of each device within the detection period measured by the detection unit. If the output is less than the first-level preset output preset in the data analysis unit, the data analysis unit determines that the operation state of the device does not meet the preset standard and determines the reason why the operation state of the device does not meet the preset standard according to the output; If the output is greater than the first-level preset output and less than or equal to the second-level preset output preset in the data analysis unit, the data analysis unit preliminarily determines that the operating state of the equipment does not meet the preset standard, and the data analysis unit determines whether the operating state of the equipment meets the preset standard based on the output at each time node within the preset period; If the output is greater than the secondary preset output, the data analysis unit determines that the operating state of the equipment meets the preset standard; When the data analysis unit determines that the operation state of the equipment does not meet the preset standard, the difference between the first-level preset output and the output is recorded as the output difference and the reason why the operation state of the equipment does not meet the preset standard is determined according to the output difference, including: the reason of the equipment production state, the operation of the upstream production line of the equipment does not meet the preset standard; When the data analysis unit determines that the reason why the production status of the equipment does not meet the preset standard is that the output demand does not meet the preset standard, the data analysis unit records the ratio of the input amount to the output amount of the equipment per unit time measured by the detection unit as the demand ratio and determines the reason why the output demand does not meet the preset standard according to the demand ratio, including: the output demand is lower than the initial standard, the equipment has a fault, the output demand has changed, and the equipment is operating normally; When the data analysis unit determines that the reason why the production demand does not meet the preset standard is that the production demand is lower than the initial standard, the difference between the first-level preset demand ratio and the demand ratio is recorded as the ratio difference, and a correction method for the second-level preset production is set according to the ratio difference, and the correction range of each correction method for the second-level preset production is different.

2. The integrated management and control system for operation and maintenance of factory equipment according to claim 1, characterized in that: When the data analysis unit determines that the reason why the production demand does not meet the preset standard is the influence of the service life, it calculates the status evaluation value and determines the reason why the operating status of the equipment does not meet the preset standard based on the status evaluation value, including: equipment aging and issuing an equipment update notification, and the maintenance time interval is longer than the preset standard.

3. The integrated management and control system for operation and maintenance of factory equipment according to claim 2, characterized in that: The data analysis unit determines a reason judgment method for the operating state of the device not meeting the preset standard according to the state evaluation value, and sets the state evaluation value , where: C is the initial output of the equipment, T is the useful life of the equipment, and α is the depreciation coefficient of the equipment.

4. The integrated management and control system for operation and maintenance of factory equipment according to claim 3 is characterized in that: When the data analysis unit determines that the reason why the operating status of the equipment does not meet the preset standard is that the maintenance time interval is longer than the preset standard, the difference between the preset status evaluation value and the status evaluation value is recorded as the evaluation value difference, and an adjustment method for the maintenance time of the equipment is set according to the evaluation value difference, and the adjustment range of each adjustment method for the equipment maintenance time is different.

5. The integrated management and control system for operation and maintenance of factory equipment according to claim 4 is characterized in that: When the data analysis unit determines that the reason why the running state of the equipment does not meet the preset standard is that the operation of the upstream production line of the equipment does not meet the preset standard, the data analysis unit determines whether the running state of the equipment meets the preset standard according to the output of the upstream equipment. If the output is greater than the preset output preset in the data analysis unit, the data analysis unit determines that the running state of the equipment does not meet the preset standard and issues a maintenance notice for the equipment. If the output is less than or equal to the preset output, the data analysis unit determines that the operating state of the device meets the preset standard and performs maintenance on the upstream device.

6. The integrated management and control system for operation and maintenance of factory equipment according to claim 5, characterized in that: When the data analysis unit preliminarily determines that the operating state of the device does not meet the preset standard, the data analysis unit determines whether the operating state of the device meets the preset standard according to the variance value of the interval of the time nodes of outputting each operating result within the preset period. If the variance value is less than or equal to the preset variance value, the data analysis unit determines that the operating state of the device meets the preset standard; If the variance value is greater than the preset variance value, the data analysis unit determines that there is a hardware problem with the device and issues a hardware maintenance notification.

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