Manufacturing execution remote control system and method based on smart factory

Abstract

The invention discloses a manufacturing execution remote control system and method based on a smart factory, and relates to the technical field of information system management, and the method comprises the steps: obtaining the ratio of the operation frequency to the fault frequency in a unit time interval, dividing a historical operation record into a first target interval and a second target interval, constructing a target group comprising a first target operation, a second target operation and a fault record which are continuous, and a reference group comprising a first target operation, a third target operation and a fault record which are continuous, and taking a ratio of a time interval between the two target operations to a time interval between the target operations and the fault record as a reference ratio; and respectively calculating reference ratios in the target group and the reference group, respectively recording the reference ratios as a first reference ratio and a second reference ratio, taking the maximum value of the fault-free time obtained in the target group as a time threshold value, and when the time interval between the first target operation and the second target operation sent by the worker is less than the time threshold value, carrying out information prompt to the worker.

Description

Technical Field

[0001] The present invention relates to the technical field of information system management, and in particular to a manufacturing execution remote control system and method based on a smart factory. Background Art

[0002] Compared with traditional factories, smart manufacturing factories will be able to more accurately optimize production processes, improve equipment energy efficiency, and reduce energy consumption and material waste. By building a remote control system and applying modern communication technology, computer network technology, and automation control technology to achieve remote operation and management of industrial equipment, the production efficiency of smart manufacturing factories can be improved and labor costs can be saved.

[0003] During remote operation, the operator is geographically separated from the target device to which the instructions are sent. The operator lacks understanding of the current status of the target device. There is a situation where the instructions sent by the current staff to the target device conflict with the previous instructions received by the device, which can easily cause failure of the target device and affect the normal production. Summary of the invention

[0004] The object of the present invention is to provide a manufacturing execution remote control system and method based on a smart factory to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a manufacturing execution remote control method based on a smart factory, the method comprising: Step S100: obtaining remote operation records and fault records of the device in a certain time interval, and calculating the ratio of the number of operations to the number of faults in each unit time interval for the operation records and fault records in the same time reference system, and classifying the unit time intervals with a ratio greater than or equal to a reference value and the unit time intervals with a ratio less than the reference value into the first target interval and the second target interval respectively; Step S200: obtaining a first target operation, a second target operation, and a third target operation from the remote operation record, and constructing a target group including continuous first target operations, second target operations, and fault records, and a reference group including continuous first target operations, third target operations, and fault records; Step S300: taking the ratio of the time interval between two target operations to the time interval between the target operation and the fault record as a reference ratio, respectively calculating the reference ratios in the target group and the reference group, which are recorded as a first reference ratio and a second reference ratio, respectively; Step S400: when the first reference value ratio is greater than the second reference value ratio, a target group with a shortened time between failures is obtained from the second target interval, and the maximum value of the time between failures obtained in the target group is used as the time threshold; Step S500: Obtain the process record of the staff's current remote operation of the device, and when the time interval between the staff's issuance of the first target operation and the second target operation is less than the time threshold, provide an information prompt to the staff.

[0006] Furthermore, step S100 includes: Step S101: Collect all remote operation records and fault records in the time range D, obtain the time of issuance of each remote operation record and the time of occurrence of the fault, obtain the time axis corresponding to the time range D, and arrange all the issuance times and occurrence times on the time axis according to the chronological order; Step S102: Obtain the total number of remote operations in the time range D, record it as nD, obtain the total number of faults in the time range D, record it as bD, calculate the operation fault ratio rD in the time range D, rD=nD / bD, and record rD as the reference value of the operation fault ratio; Step S103: Set a unit interval time with a time length of d0, divide the time axis of the time range into several unit sub-intervals, and the time length of each unit sub-interval is d0, and obtain the number of remote operations and the number of faults in each unit sub-interval, where the operation fault ratio ri of the i-th unit sub-interval is ri=ni / bi, ni represents the number of remote operations in the i-th unit sub-interval, and bi represents the number of faults in the i-th unit sub-interval; Step S104: the unit sub-intervals whose operation failure ratio is greater than or equal to the operation failure ratio reference value are aggregated into the first target interval, and the unit sub-intervals whose operation failure ratio is less than the operation failure ratio reference value are aggregated into the second target interval; The ratio of the number of equipment operations to the number of occurrences is used as a reference value to measure the operating status of the equipment. The operating records of the same equipment are divided into two intervals according to the operation failure score. One end is the interval with relatively large operation failures, that is, the interval with relatively stable equipment operation, and the other end is the interval with relatively small operation failures, that is, the interval with relatively large fluctuations in the equipment operating status.

[0007] Further, step S200 includes: Step S201: Classify the same remote operations in the remote operation records into one category to obtain a set of operation categories of the device, obtain any three categories of remote operations from the set of operation categories and record them as a first target operation, a second target operation and a third target operation, respectively, form a first target time pair with the time corresponding to the first target operation and the time corresponding to the first fault after the first operation, and form a second target time pair with the time corresponding to the second target operation and the time corresponding to the first fault after the second operation; Step S202: The continuous first target operation, the second target operation and the fault record are grouped into a target group, the time interval between the first target operation and the fault record in the target group is calculated as T1, the time interval between the second target operation and the fault record in the target group is calculated as T2, and all target groups in the first target interval are collected and recorded into a first reference set; Step S203: The continuous first target operation, the third target operation and the fault record are grouped into a reference group, and all reference groups in the first target interval are collected and recorded into a second reference set.

[0008] Furthermore, step S300 includes: Step S301: record the ratio of the time interval between the first target operation and the second target operation to the time interval between the second target operation and the fault record as the first target ratio, calculate the first target ratios of all target groups in the first reference set, and record the average value of the first target ratios as the first reference ratio α1; Step S302: record the ratio of the time interval between the first target operation and the third target operation to the time interval between the third target operation and the fault record as the second target ratio, calculate the second target ratios of all reference groups in the second reference set, and record the average value of the second target ratios as the second reference ratio α2; Two consecutive operation steps and fault records are taken as an identification object to identify whether there is an operation pair consisting of two operations. When this operation pair appears, the mean time to failure will be shortened.

[0009] Furthermore, step S400 includes: Step S401: Collect all first target time pairs and second target time pairs in the time range D, obtain the time intervals between the first target operation and the fault record in all first target time pairs within the time range D, calculate the average value of the time intervals and record it as AT1, obtain the time intervals between the second target operation and the fault record in all second target time pairs, calculate the average value of the time intervals and record it as AT2; Step S402: when α1>α2, the target group in the second target interval when T1≤AT1 and T2≤AT2 is recorded as a characteristic target group, and the characteristic target groups in the second target interval are collected and recorded into a third reference set; The third target operation is a reference operation relative to the second target operation. When α1>α2, it indicates that the operation pair consisting of the first target operation and the second target operation is more likely to cause a fault than the operation pair consisting of the first target operation and the third target operation. Step S403: Obtain the time interval between the first target operation and the second target operation in each characteristic target group in the third reference set, obtain the maximum value of the time interval, and record the maximum value as Tal.

[0010] Furthermore, step S500 includes: Step S501: Capture the record of the staff's current remote operation of the device, and start timing when the staff issues a first target operation; Step S502: when the next operation instruction issued by the staff after issuing the first target operation is the second target operation, the time interval between issuing the first target operation instruction and issuing the second target operation instruction is obtained, and the time interval is recorded as ts; Step S503: When ts<Tal, an alarm is given to the staff.

[0011] In order to better implement the above method, a manufacturing execution remote control system based on a smart factory is also proposed, and the system includes: An operation record classification module, a comparison record management module, a reference ratio calculation module, a time threshold management module and an information reminder module, wherein the operation record classification module is used to divide the unit sub-interval into a first target interval and a second target interval, the comparison record management module is used to obtain the operation records in the interval to construct a target group and a reference group, the reference ratio calculation module is used to calculate the reference ratio, the time threshold management module is used to calculate the time threshold, and the information reminder module is used to obtain the current operation status of the staff and provide information reminders to the staff; Further, the operation record classification module includes: a history record acquisition unit, an operation failure ratio calculation unit and a classification management unit, wherein the history record acquisition unit is used to acquire remote operation records and failure records, the operation failure ratio calculation unit is used to calculate an operation failure ratio reference value and an operation failure ratio of each unit sub-interval, and the classification management unit is used to classify and manage the first target interval and the second target interval; Further, the comparison record management module includes an operation group management unit, a first reference set management unit, and a second reference set management unit, wherein the operation group management unit is used to manage the target group and the reference group, the first reference set management unit is used to collect all target groups in the first target interval to obtain a first reference set, and the second reference set management unit is used to collect all reference groups in the first target interval into a second reference set; Further, the reference ratio calculation module includes: a first reference ratio calculation unit and a second reference ratio calculation unit, wherein the first reference ratio calculation unit is used to calculate the first reference ratio, and the second reference ratio calculation unit is used to calculate the second reference ratio; Further, the time threshold management module includes: an average time calculation unit, a third reference set management unit and a time threshold management unit, wherein the average time calculation unit is used to calculate the average value of the time interval between the target operation and the fault record, the third reference set management unit is used to manage the target group of the second target interval according to the judgment condition, and the time threshold management unit is used to obtain the time threshold; Furthermore, the information reminder module includes: a current record management unit, a time management unit and an alarm prompt unit, wherein the current record management unit is used to manage the current operation records of the staff, the time management unit is used to obtain the operation intervals of the current staff for management, and the alarm prompt unit is used to issue alarm prompts to relevant staff.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: by extracting the steps that are prone to conflict during the remote operation process or the operations that are more likely to cause failures after continuous operation of the steps, the time threshold is obtained through screening and comparison. When the operation time interval of the relevant remote operation steps during the operation process is less than the time threshold, risk warning information is provided to warn of possible safety hazards, especially in the scenario of remote operation, where the relevant operators are not aware of the operating status of the equipment, thereby improving the safety guarantee capability for production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a manufacturing execution remote control system based on a smart factory of the present invention; Figure 2 The present invention is a flowchart of a remote control method for manufacturing execution based on a smart factory. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Example: Figure 1 and Figure 2 As shown, the present invention provides a technical solution, a manufacturing execution remote control method based on a smart factory, the steps comprising: Step S100: obtaining remote operation records and fault records of the device in a certain time interval, and calculating the ratio of the number of operations to the number of faults in each unit time interval for the operation records and fault records in the same time reference system, and classifying the unit time intervals with a ratio greater than or equal to a reference value and the unit time intervals with a ratio less than the reference value into the first target interval and the second target interval respectively; Wherein, step S100 includes: Step S101: Collect all remote operation records and fault records in the time range D, obtain the time of issuance of each remote operation record and the time of occurrence of the fault, obtain the time axis corresponding to the time range D, and arrange all the issuance times and occurrence times on the time axis according to the chronological order; Step S102: Obtain the total number of remote operations in the time range D, record it as nD, obtain the total number of faults in the time range D, record it as bD, calculate the operation fault ratio rD in the time range D, rD=nD / bD, and record rD as the reference value of the operation fault ratio; In the embodiment, in order to ensure that the operation failure ratio rD value is meaningful, in the actual application process, nD and bD are both integers greater than or equal to 1. For example, in the time range D, a total of 15 remote operations occur and 3 failures occur, rD=5; Step S103: Set a unit interval time with a time length of d0, divide the time axis of the time range into several unit sub-intervals, and the time length of each unit sub-interval is d0, and obtain the number of remote operations and the number of faults in each unit sub-interval, where the operation fault ratio ri of the i-th unit sub-interval is ri=ni / bi, ni represents the number of remote operations in the i-th unit sub-interval, and bi represents the number of faults in the i-th unit sub-interval; Step S104: Unit sub-intervals whose operating failure ratio is greater than or equal to the operating failure ratio reference value are aggregated into the first target interval, and unit sub-intervals whose operating failure ratio is less than the operating failure ratio reference value are aggregated into the second target interval.

[0016] Step S200: obtaining a first target operation, a second target operation, and a third target operation from the remote operation record, and constructing a target group including continuous first target operations, second target operations, and fault records, and a reference group including continuous first target operations, third target operations, and fault records; Wherein, step S200 includes: Step S201: Classify the same remote operations in the remote operation records into one category to obtain a set of operation categories of the device, obtain any three categories of remote operations from the set of operation categories and record them as a first target operation, a second target operation and a third target operation, respectively, form a first target time pair with the time corresponding to the first target operation and the time corresponding to the first fault after the first operation, and form a second target time pair with the time corresponding to the second target operation and the time corresponding to the first fault after the second operation; Step S202: The continuous first target operation, the second target operation and the fault record are grouped into a target group, the time interval between the first target operation and the fault record in the target group is calculated as T1, the time interval between the second target operation and the fault record in the target group is calculated as T2, and all target groups in the first target interval are collected and recorded into a first reference set; Step S203: The continuous first target operation, the third target operation and the fault record are grouped into a reference group, and all reference groups in the first target interval are collected and recorded into a second reference set.

[0017] Step S300: taking the ratio of the time interval between two target operations to the time interval between the target operation and the fault record as a reference ratio, respectively calculating the reference ratios in the target group and the reference group, which are recorded as a first reference ratio and a second reference ratio, respectively; Wherein, step S300 includes: Step S301: record the ratio of the time interval between the first target operation and the second target operation to the time interval between the second target operation and the fault record as the first target ratio, calculate the first target ratios of all target groups in the first reference set, and record the average value of the first target ratios as the first reference ratio α1; Step S302: record the ratio of the time interval between the first target operation and the third target operation to the time interval between the third target operation and the fault record as the second target ratio, calculate the second target ratios of all reference groups in the second reference set, and record the average value of the second target ratio as the second reference ratio α2.

[0018] Step S400: when the first reference value ratio is greater than the second reference value ratio, a target group with a shortened time between failures is obtained from the second target interval, and the maximum value of the time between failures obtained in the target group is used as the time threshold; Wherein, step S400 includes: Step S401: Collect all first target time pairs and second target time pairs in the time range D, obtain the time intervals between the first target operation and the fault record in all first target time pairs within the time range D, calculate the average value of the time intervals and record it as AT1, obtain the time intervals between the second target operation and the fault record in all second target time pairs, calculate the average value of the time intervals and record it as AT2; Step S402: when α1>α2, the target group in the second target interval when T1≤AT1 and T2≤AT2 is recorded as a characteristic target group, and the characteristic target groups in the second target interval are collected and recorded into a third reference set; For example, when the total time is certain: α1>α2, the addition of the second target operation will cause the failure to occur faster than the third operation; When the total time is not certain and the interval between the two operations is certain, α1>α2, the addition of the second target operation will cause the failure to occur faster than the third operation; Step S403: Obtain the time interval between the first target operation and the second target operation in each characteristic target group in the third reference set, obtain the maximum value of the time interval, and record the maximum value as Tal.

[0019] Step S500: obtaining a process record of the staff member's current remote operation of the device, and when the time interval between the staff member's first target operation and the second target operation is less than a time threshold, providing an information prompt to the staff member; Wherein, step S500 includes: Step S501: Capture the record of the staff's current remote operation of the device, and start timing when the staff issues a first target operation; Step S502: when the next operation instruction issued by the staff after issuing the first target operation is the second target operation, the time interval between issuing the first target operation instruction and issuing the second target operation instruction is obtained, and the time interval is recorded as ts; Step S503: when ts<Tal, an alarm is given to the staff; During the implementation process, if it is detected that the staff issues an instruction for the second target operation within a time range less than the time threshold after the first target operation is issued, an alarm prompt message is issued to the staff, and the staff can choose to continue the operation or cancel the instruction. After the staff confirms, the operation is performed according to the staff's confirmation result; Optionally, after sending an alarm message to the staff, the data of the current operating status of the equipment is retrieved to provide the staff with a reference for decision-making.

[0020] A manufacturing execution remote control system based on a smart factory, the system includes: an operation record classification module, a comparison record management module, a reference ratio calculation module, a time threshold management module and an information reminder module; The operation record classification module is used to divide the unit sub-interval into a first target interval and a second target interval. The operation record classification module includes: a history record acquisition unit, an operation failure ratio calculation unit and a classification management unit. The history record acquisition unit is used to acquire remote operation records and failure records. The operation failure ratio calculation unit is used to calculate an operation failure ratio reference value and an operation failure ratio of each unit sub-interval. The classification management unit is used to classify and manage the first target interval and the second target interval. The comparison record management module is used to obtain the operation records in the interval to construct the target group and the reference group, wherein the comparison record management module includes an operation group management unit, a first reference set management unit and a second reference set management unit, wherein the operation group management unit is used to manage the target group and the reference group, the first reference set management unit is used to collect all the target groups in the first target interval to obtain the first reference set, and the second reference set management unit is used to collect all the reference groups in the first target interval into the second reference set; The reference ratio calculation module is used to calculate the reference ratio, wherein the reference ratio calculation module includes: a first reference ratio calculation unit and a second reference ratio calculation unit, wherein the first reference ratio calculation unit is used to calculate the first reference ratio, and the second reference ratio calculation unit is used to calculate the second reference ratio; The time threshold management module is used to calculate the time threshold, wherein the time threshold management module includes: an average time calculation unit, a third reference set management unit and a time threshold management unit, wherein the average time calculation unit is used to calculate the average value of the time interval between the target operation and the fault record, the third reference set management unit is used to manage the target group of the second target interval according to the judgment condition, and the time threshold management unit is used to obtain the time threshold; Among them, the information reminder module is used to obtain the operation status of the current staff and provide information prompts to the staff. The information reminder module includes: a current record management unit, a time management unit and an alarm prompt unit. Among them, the current record management unit is used to manage the current operation records of the staff, the time management unit is used to obtain the operation interval of the current staff for management, and the alarm prompt unit is used to provide alarm prompts to relevant staff.

[0021] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A manufacturing execution remote control method based on a smart factory, characterized in that: The method comprises the steps of: Step S100: obtaining remote operation records and fault records of the device in a certain time interval, and calculating the ratio of the number of operations to the number of faults in each unit time interval for the operation records and fault records in the same time reference system, and classifying the unit time intervals with a ratio greater than or equal to a reference value and the unit time intervals with a ratio less than the reference value into the first target interval and the second target interval respectively; Step S200: obtaining a first target operation, a second target operation, and a third target operation from the remote operation record, and constructing a target group including continuous first target operations, second target operations, and fault records, and a reference group including continuous first target operations, third target operations, and fault records; Step S300: taking the ratio of the time interval between two target operations to the time interval between the target operation and the fault record as a reference ratio, respectively calculating the reference ratios in the target group and the reference group, which are recorded as a first reference ratio and a second reference ratio, respectively; Step S400: when the first reference value ratio is greater than the second reference value ratio, a target group with a shortened time between failures is obtained from the second target interval, and the maximum value of the time between failures obtained from the target group is used as the time threshold; Step S500: Obtain the process record of the staff's current remote operation of the device, and when the time interval between the staff's issuance of the first target operation and the second target operation is less than the time threshold, provide an information prompt to the staff.

2. A manufacturing execution remote control method based on a smart factory according to claim 1, characterized in that: Step S100 includes: Step S101: Collect all remote operation records and fault records in the time range D, obtain the time of issuance of each remote operation record and the time of occurrence of the fault, obtain the time axis corresponding to the time range D, and arrange all the issuance times and the occurrence times on the time axis according to the chronological order; Step S102: Obtain the total number of remote operations in the time range D, record it as nD, obtain the total number of faults in the time range D, record it as bD, calculate the operation fault ratio rD in the time range D, rD=nD / bD, and record rD as the reference value of the operation fault ratio; Step S103: Set a unit interval time with a time length of d0, divide the time axis of the time range into several unit sub-intervals, and the time length of each unit sub-interval is d0, and obtain the number of remote operations and the number of faults in each unit sub-interval, where the operation fault ratio ri of the i-th unit sub-interval is ri=ni / bi, ni represents the number of remote operations in the i-th unit sub-interval, and bi represents the number of faults in the i-th unit sub-interval; Step S104: Unit sub-intervals whose operating failure ratio is greater than or equal to the operating failure ratio reference value are aggregated into the first target interval, and unit sub-intervals whose operating failure ratio is less than the operating failure ratio reference value are aggregated into the second target interval.

3. A manufacturing execution remote control method based on a smart factory according to claim 2, characterized in that: Step S200 includes: Step S201: In the remote operation record, the same remote operation is classified into one category to obtain an operation category set of the device, and any three categories of remote operations are obtained from the operation category set and recorded as a first target operation, a second target operation, and a third target operation, respectively. The time corresponding to the first target operation and the time corresponding to the first fault after the first operation form a first target time pair, and the time corresponding to the second target operation and the time corresponding to the first fault after the second operation form a second target time pair; Step S202: The continuous first target operation, the second target operation and the fault record are grouped into a target group, the time interval between the first target operation and the fault record in the target group is calculated as T1, the time interval between the second target operation and the fault record in the target group is calculated as T2, and all target groups in the first target interval are collected and recorded into a first reference set; Step S203: The continuous first target operation, the third target operation and the fault record are grouped into a reference group, and all reference groups in the first target interval are collected and recorded into a second reference set.

4. The manufacturing execution remote control method based on a smart factory according to claim 3 is characterized in that: Step S300 includes: Step S301: record the ratio of the time interval between the first target operation and the second target operation to the time interval between the second target operation and the fault record as the first target ratio, calculate the first target ratios of all target groups in the first reference set, and record the average value of the first target ratios as the first reference ratio α1; Step S302: record the ratio of the time interval between the first target operation and the third target operation to the time interval between the third target operation and the fault record as the second target ratio, calculate the second target ratios of all reference groups in the second reference set, and record the average value of the second target ratio as the second reference ratio α2.

5. A manufacturing execution remote control method based on a smart factory according to claim 4, characterized in that: Step S400 includes: Step S401: Collect all first target time pairs and second target time pairs in the time range D, obtain the time intervals between the first target operation and the fault record in all first target time pairs within the time range D, calculate the average value of the time intervals and record it as AT1, obtain the time intervals between the second target operation and the fault record in all second target time pairs, calculate the average value of the time intervals and record it as AT2; Step S402: when α1>α2, the target group in the second target interval when T1≤AT1 and T2≤AT2 is recorded as a characteristic target group, and the characteristic target groups in the second target interval are collected and recorded into a third reference set; Step S403: obtaining the time interval between the first target operation and the second target operation in each characteristic target group in the third reference set, obtaining the maximum value of the time interval, and recording the maximum value as Tal.

6. A manufacturing execution remote control method based on a smart factory according to claim 5, characterized in that: Step S500 includes: Step S501: Capture the record of the staff's current remote operation of the device, and start timing when the staff issues a first target operation; Step S502: when the next operation instruction issued by the staff after issuing the first target operation is the second target operation, the time interval between issuing the first target operation instruction and issuing the second target operation instruction is obtained, and the time interval is recorded as ts; Step S503: When ts<Tal, an alarm is given to the staff.

7. A manufacturing execution remote control system based on a smart factory, used to execute a manufacturing execution remote control method based on a smart factory as claimed in any one of claims 1 to 6, characterized in that: The system includes: An operation record classification module, a comparison record management module, a reference ratio calculation module, a time threshold management module and an information reminder module, wherein the operation record classification module is used to divide the unit sub-interval into a first target interval and a second target interval, the comparison record management module is used to obtain the operation records in the interval to construct a target group and a reference group, the reference ratio calculation module is used to calculate the reference ratio, the time threshold management module is used to calculate the time threshold, and the information reminder module is used to obtain the current staff's operation status and provide information prompts to the staff.

8. The manufacturing execution remote control system based on a smart factory according to claim 7, characterized in that: The operation record classification module includes: a history record acquisition unit, an operation failure ratio calculation unit and a classification management unit, wherein the history record acquisition unit is used to acquire remote operation records and failure records, the operation failure ratio calculation unit is used to calculate an operation failure ratio reference value and an operation failure ratio of each unit sub-interval, and the classification management unit is used to classify and manage the first target interval and the second target interval; The comparison record management module includes an operation group management unit, a first reference set management unit and a second reference set management unit, wherein the operation group management unit is used to manage the target group and the reference group, the first reference set management unit is used to collect all target groups in the first target interval to obtain a first reference set, and the second reference set management unit is used to collect all reference groups in the first target interval into a second reference set.

9. The manufacturing execution remote control system based on a smart factory according to claim 7, characterized in that: The reference ratio calculation module includes: a first reference ratio calculation unit and a second reference ratio calculation unit, wherein the first reference ratio calculation unit is used to calculate the first reference ratio, and the second reference ratio calculation unit is used to calculate the second reference ratio; The time threshold management module includes: an average time calculation unit, a third reference set management unit and a time threshold management unit, wherein the average time calculation unit is used to calculate the average value of the time interval between the target operation and the fault record, the third reference set management unit is used to manage the target group of the second target interval according to the judgment condition, and the time threshold management unit is used to obtain the time threshold.

10. The manufacturing execution remote control system based on a smart factory according to claim 7, characterized in that: The information reminder module includes: a current record management unit, a time management unit and an alarm prompt unit, wherein the current record management unit is used to manage the current operation records of the staff, the time management unit is used to obtain the operation intervals of the current staff for management, and the alarm prompt unit is used to issue alarm prompts to relevant staff.

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