METHOD FOR SELF-ADAPTION FASTER-THAN-REAL-TIME WORKING CONDITION START-UP STATE PREDICTION AND ESTIMATION OF UNIT

Abstract

The present disclosure provides a self-adaption faster-than-real-time method for estimating a working condition start-up state of a unit. Firstly, an event recording sequence, an analog measurement point ID, an analog measurement point first-level alarm value and a history scatter point distribution record are read from a time sequence event record table, an analog measurement point table, an alarm threshold table and a historical scatter record table. A measured value slope of the analog measurement point is calculated according to an event recording relative time. Then, an abnormal state estimated value is calculated based on the history scatter point distribution record, the analog measurement point first-level alarm value and the measured value slope of the analog measurement point. Finally, a pre-warning is sent to remind a watchman to perform a preventive operation when the abnormal state estimated value is above the threshold.

Claims

1. A method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit, comprising the following steps: (1.1) reading an event recording sequence, an analog measurement point ID, an analog measurement point first-level alarm value and a history scatter point distribution record; (1.2) calculating a measured value slope of an analog measurement point according to an event recording relative time; (1.3) calculating an abnormal state estimated value P based on the history scatter point distribution record, the analog measurement point first-level alarm value and the measured value slope of the analog measurement point; and (1.4) sending no pre-warning when the abnormal state estimated value P is below a threshold; and sending a pre-warning to remind a watchman to perform a preventive operation when the abnormal state estimated value P is above the threshold.

2. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 1, wherein the event recording sequence, the analog measurement point ID, the analog measurement point first-level alarm value and the history scatter point distribution record are respectively read from a time sequence event record table, an analog measurement point table, an alarm threshold table and a historical scatter record table correspondingly, and content recorded in the time sequence event record table comprises a switching value signal set K with a serial number and a state which are set in sequence, the switching value signal set K comprising at least a unit start-up command signal and a unit steady-state signal; content recorded in the analog measurement point table comprises a to-be-monitored analog measurement point set M; content recorded in the alarm threshold table comprises an analog measurement point first-level alarm set B.sub.1; and content recorded in the historical scatter record table comprises measured value distribution statistics and measured value slope distribution statistics of the analog measurement point corresponding to the switching value signal set K under a relative process step.

3. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 2, wherein the event recording relative time in step (1.2) is a time difference ΔT.sub.i([ΔT.sub.1, ΔT.sub.2, . . . , ΔT.sub.n-1]∈ΔT) obtained by subtracting two adjacent time records in time records T.sub.i([T.sub.1, T.sub.2, . . . , T.sub.n]∈T) of each switching value K.sub.i([K.sub.1, K.sub.2, . . . , K.sub.n]∈K) in the switching value signal set K; and the measured value slope X.sub.i([X.sub.1, X.sub.2, . . . , X.sub.n]∈X) of the analog measurement point is a quotient of a measured value difference ΔC.sub.i([ΔC.sub.1, ΔC.sub.2, . . . , ΔC.sub.n-1]∈ΔC) obtained by subtracting two adjacent measured values in measured values C.sub.i([C.sub.1, C.sub.2, . . . , C.sub.n]∈C) of each analog M.sub.i([M.sub.1, M.sub.2, . . . , M.sub.n]∈M) in the to-be-monitored analog measurement point set M, and the time difference ΔT.sub.i([ΔT.sub.1, ΔT.sub.2, . . . , ΔT.sub.n-1]∈ΔT), n is a record number of the switching value signal set K with a serial number and a state, which are set in sequence, comprised in the content recorded in the time sequence event record table, and i denotes a switching value set in an i.sup.th time sequence event record table.

4. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 2, wherein the switching value signal comprises at least three contents, which are a time record accurate to millisecond, a state record and equipment description; the state record comprises at least a state record representing a state of “1” and a state record representing a state of “0”.

5. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 2, wherein the measured value distribution statistics of the analog measurement point under the relative process step is measured value distribution statistics TC.sub.i([TC.sub.1, TC.sub.2, . . . , TC.sub.n]∈TC) of the analog measurement point and measured value slope distribution statistics TX.sub.i([TX.sub.1, TX.sub.2, . . . , TX.sub.n-1]∈TX) of the analog measurement point corresponding to the time records T.sub.i([T.sub.1, T.sub.2, . . . , T.sub.n]∈T) of each switching value K.sub.i([K.sub.1, K.sub.2, . . . , K.sub.n]∈K) in the switching value signal set K; the measured value distribution statistics TC.sub.i of the analog measurement point is histogram statistics with measured values CL of the analog measurement point at moments corresponding to the switching value K.sub.i on a horizontal axis and distribution on a vertical axis; and the measured value slope of the analog measurement point distribution statistics TX.sub.i is histogram statistics with measured value slope of the analog measurement points XL at moments corresponding to the switching value K.sub.i on a horizontal axis and distribution on a vertical axis.

6. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 5, wherein the measured value distribution statistics and the measured value slope distribution statistics of the analog measurement point under the relative process step are obtained through the following steps: (6.1) traversing switching value records in a statistical cycle, taking out switching value signals simultaneously satisfying the switching value signal set K in sequence, and storing the time of the switching value signals taken out in a time sequence TL according to the sequence of the switching value signal set K; (6.2) traversing analog records of the analog measurement point set M in the statistical cycle, and taking out measured values of the analog measurement point of the analog measurement point set M with a time scale of the time sequence TL to obtain a set of the measured values CL of the analog measurement point and the measured value slope XL of the analog measurement point; and (6.3) obtaining the measured value distribution statistics TC.sub.i with the measured values CL of the analog measurement point at moments corresponding to the switching value K.sub.i on the horizontal axis and measured value distribution of the analog measurement point on the vertical axis; and obtaining the measured value slope of the analog measurement point distribution statistics TX.sub.i with the measured value slope of the analog measurement points XL at moments corresponding to the switching value K.sub.i on the horizontal axis and measured value slope of the analog measurement point distribution on the vertical axis.

7. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 1, wherein step (1.3) of calculating an abnormal state estimated value P based on the history scatter point distribution record, the analog measurement point first-level alarm value and the measured value slope of the analog measurement point comprises the following steps: (7.1) setting the abnormal state estimated value P to 0%, and when the measured value of the analog measurement point is greater than the analog measurement point first-level alarm value, setting the abnormal state estimated value P to 100%, and pre-warning the watchman that the measured value of the analog measurement point is higher than an upper limit; when the measured value of the analog measurement point is not greater than the analog measurement point first-level alarm value and the measured value C.sub.i of the analog measurement point corresponding to the switching value K.sub.i is outside a positive direction of a 1.96 times mean square error σc centered on an average value c.sub.avi of the measured value histogram statistics TC.sub.i of the analog measurement point, that is, the measured value slope of the analog measurement point X.sub.i is greater than (c.sub.avi+1.96 σc), assigning the abnormal state estimated value P to 50%, and performing step (7.2); when the measured value of the analog measurement point is not greater than the analog measurement point first-level alarm value and the measured value C.sub.i of the analog measurement point corresponding to the switching value K.sub.i is not outside the positive direction of the 1.96 times mean square error σc centered on the average value c.sub.avi of the measured value histogram statistics TC.sub.i of the analog measurement point, that is, the measured value slope of the analog measurement point X.sub.i is no greater than (c.sub.avi+1.96 σc), σc being a measured value standard deviation, assigning the abnormal state estimated value P to 40%, and performing step (7.2); (7.2) when the measured value slope of the analog measurement point X.sub.i corresponding to the switching value K.sub.i is outside a positive direction of a 1.96 times mean square error ox centered on an average value x.sub.avi of the measured value slope of the analog measurement point histogram statistics TX.sub.i, that is, the measured value slope of the analog measurement point X.sub.i is greater than (x.sub.avi+1.96 σx), performing step (7.3); when the measured value slope of the analog measurement point X.sub.i corresponding to the switching value K.sub.i is outside a negative direction of the 1.96 times mean square error ox centered on the average value x.sub.avi of the measured value slope of the analog measurement point histogram statistics TX.sub.i, that is, the measured value slope of the analog measurement point X.sub.i is less than (x.sub.avi+1.96 σx), σx being a measured value slope standard deviation, and performing step (7.4); and otherwise, the abnormal state estimated value P being 0%, and not pre-warning the watchman; (7.3) pre-warning the watchman that the measured value of the analog measurement point is at a risk of being higher than the upper limit, comparing previous switching values K.sub.t(0<t≤i, t is a positive integer) to judge a number of times e (e=i't, e is a positive integer) of continuous occurrence of the pre-warning that the measured value of the analog measurement point is at a risk of being higher than the upper limit, the abnormal state estimated value P being P+e×10%, i=i+1, and performing step (7.1); and (7.4) pre-warning the watchman that a start-up process step has a risk of timeout, comparing previous switching values K.sub.t(0<t≤i, t is a positive integer) to judge a number of times q (q=i−t, q is a positive integer) of continuous occurrence of the pre-warning that the start-up process step has a risk of timeout, the abnormal state estimated value P being P+q×10%, i=i+1, and performing step (7.1).

8. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 1, wherein a threshold δ of the abnormal state estimated value P in step (1.4) is 50%.

9. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 1, wherein the preventive operation performed by the watchman in step (1.4) comprises: (9.1) confirming, on an upper computer of a monitoring system, whether the pre-warning is correct: (9.2) reporting to a superior dispatching watchman: and (9.3) informing a watchman of a current plant.

10. The method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to claim 1, wherein the confirming, on an upper computer of a monitoring system, whether the pre-warning is correct comprises checking whether the unit is in a start-up state, and/or calling out a simulation diagram to check whether the measured value of the analog measurement point is higher than a second threshold; the reporting to an upper-level dispatching watchman comprises reporting that a current start-up unit has a start-up failure risk, and/or applying for recovering a unit control right; and the informing a watchman of the station comprises informing the watchman of an abnormal condition, and/or informing the watchman to go to the site for dealing with the abnormal condition in advance.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG. 1 is a flowchart of a method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Specific implementations of the present disclosure are further described below with reference to the accompanying drawings and examples, but implementation and protection of the present disclosure are not limited thereto. It is to be noted that if any of the following processes is not described in detail, they may be realized or understood by those skilled in the art with reference to the prior art.

[0041] The following is an example analysis on monitoring signals for start-up process of a power generation working condition of a #4 unit in Guangzhou Energy Storage Hydropower Plant from 11:00 to 19:00 on Apr. 10, 2019.

[0042] With reference to the flowchart in FIG. 1, a method for self-adaption faster-than-real-time working condition start-up state prediction and estimation of a unit includes the following steps.

[0043] (1.1) An event recording sequence, an analog measurement point ID, an analog measurement point first-level alarm value and a history scatter point distribution record are read from a time sequence event record table (Table 1 below), an analog measurement point table (Table 2 below), an alarm threshold table (Table 3 below) and a historical scatter record table (Table 4 below).

[0044] Content recorded in the time sequence event record table includes a switching value signal set K with a serial number and a state which are set in sequence; the switching value signal set K includes at least a unit start-up command signal and a unit steady-state signal; content recorded in the analog measurement point table includes a to-be-monitored analog measurement point set M; content recorded in the alarm threshold table includes an analog measurement point first-level alarm set B.sub.1 and an analog measurement point second-level alarm set B.sub.2; and content recorded in the historical scatter record table includes measured value distribution statistics and measured value slope distribution statistics of the analog measurement point corresponding to the switching value signal set K under a relative process step. The step refers to a signal node between flag bit signals of process steps in a working condition start-up process of the unit, or a signal node between a process step program and equipment action feedback in the working condition start-up process of the unit. The switching value signal includes at least three contents, which are a time record accurate to millisecond, a state record and equipment description respectively; the state record includes at least a state record representing a state of “1” and a state record representing a state of “0”.

[0045] The measured value distribution statistics of the analog measurement point under the relative process step is measured value distribution statistics TC.sub.i([TC.sub.1, TC.sub.2, . . . , TC.sub.n]∈TC) of the analog measurement point and measured value slope distribution statistics TX.sub.i([TX.sub.1, TX.sub.2, . . . , TX.sub.n-1]∈TX) of the measurement point corresponding to the time records T.sub.i([T.sub.1, T.sub.2, . . . , T.sub.n]∈ΔT) of each switching value K.sub.i([K.sub.1, K.sub.2, . . . , K.sub.n]∈K) in the switching value signal set K; n is the number of records of the switching value signal set K with the serial number and the state set in the sequential order of the contents recorded in the time sequence event record table, and i represents the switching amount set in the i-th time sequence event record table; the measured value distribution statistics TC.sub.i of the analog measurement point is histogram statistics with measured values CL of the analog measurement point at moments corresponding to the switching value K.sub.i on a horizontal axis and distribution on a vertical axis; and the measured value slope of the analog measurement point distribution statistics TX.sub.i is histogram statistics with measured value slope of the analog measurement points XL at moments corresponding to the switching value K.sub.i on a horizontal axis and distribution on a vertical axis.

[0046] The measured value distribution statistics and the measured value slope distribution statistics of the analog measurement point are specifically obtained from the following steps.

[0047] In step a, switching value records in a statistical cycle are traversed, switching value signals simultaneously satisfying the switching value signal set K in sequence are taken out, and the time of the switching value signals taken out is stored in a time sequence TL according to the sequence of the switching value signal set K. In the present embodiment, the statistical cycle is the past half year.

[0048] In step b, analog records of the analog measurement point set M in the statistical cycle are traversed, and measured values of the measurement point of the analog measurement point set M with a time scale of the time sequence TL are taken out to obtain a set CL and the measured value slope XL of the measurement point.

[0049] In step c, the measured value distribution statistics TC.sub.i of the analog measurement point with the measured values CL of the analog measurement point at moments corresponding to the switching value K.sub.i on the horizontal axis and measured value distribution of the analog measurement point on the vertical axis is obtained; and the measured value slope of the analog measurement point distribution statistics TX.sub.i with the measured value slope of the analog measurement points XL at moments corresponding to the switching value K.sub.i on the horizontal axis and measured value slope of the analog measurement point distribution on the vertical axis is obtained.

TABLE-US-00001 TABLE 1 Time sequence event record table Serial Switching number value signal Description 1 Description 2 Event state Notes 1 K.sub.1 04GTATEA0301 GENERATOR NO DETEC −> Power REQUESTED STATUS DETECTED generation unit working condition start-up signal 2 K.sub.2 04GTA_RV15.sub.— UNIT SPEED <0.034 DETECTED −> The unit starts VN NO DETEC to rotate 3 K.sub.3 04GTA454XR.sub.— UNIT SPEED >0.5VN NO DETEC −> The unit DETECTED reaches a rotation speed of 50% 4 K.sub.4 04GTA_RV18.sub.— UNIT SPEED >0.9 VN NO DETEC −> The unit DETECTED reaches a rotation speed of 90% 5 K.sub.5 04GTA001JD_C 04GTA001JD CLOSED NO CLOSE −> An outlet CLOSED switch of the unit is closed 6 K.sub.6 04GTATEA1469 GENERATOR NO DETEC −> Power STABLE STATUS DETECTED generation unit working condition steady-state signal

TABLE-US-00002 TABLE 2 Analog measurement point table Analog Analog measurement Analog measurement signal point ID point short name Description M.sub.1 3088226 04GTASMS4 Upper guide bearing metal temperature 7 of Unit 4_SMS4_ in Guangzhou Energy Storage Hydropower Plant A

TABLE-US-00003 TABLE 3 Alarm threshold table Serial Analog measurement First-level Second-level number point short name alarm value B.sub.1 alarm value B.sub.2 1 04GTASMS4 75° C. 80° C.

TABLE-US-00004 TABLE 4 History scatter point distribution record Negative Positive 1.96 times 1.96 times standard standard Negative Positive deviation deviation 1.96 times 1.96 times Mean of of of standard standard measured measured measured Mean of deviation deviation Switching Analog value value value slope of slope of slope Serial value measurement distribution (c.sub.avi − (c.sub.avi + distribution (x.sub.avi − (x.sub.avi + number signal point c.sub.avi/° C. 1.96σc) 1.96σc) x.sub.avi 1.96σx) 1.96σx) 1 K.sub.1 M.sub.1 48.26 40.40 56.13 2 K.sub.2 M.sub.1 49.50 41.43 57.57 0.00952 0.00797 0.01107 3 K.sub.3 M.sub.1 50.29 42.09 58.48 0.04632 0.03877 0.05387 4 K.sub.4 M.sub.1 50.74 42.47 59.01 0.03750 0.03139 0.04361 5 K.sub.5 M.sub.1 52.31 43.79 60.84 0.02582 0.02161 0.03003 6 K.sub.6 M.sub.1 52.34 43.78 60.90 0.00500 0 0.01233

[0050] (1.2) An measured value slope of the analog measurement point is calculated according to an event recording relative time.

[0051] The event recording relative time is a time difference ΔT.sub.i([ΔT.sub.1, ΔT.sub.2, . . . , ΔT.sub.n-1]∈ΔT) obtained by subtracting two adjacent time records in time records T.sub.i([T.sub.1, T.sub.2, . . . , T.sub.n]∈T) of each switching value K.sub.i([K.sub.1, K.sub.2, . . . , K.sub.n]∈K) in the switching value signal set K; and the measured value slope of the analog measurement point X.sub.i([X.sub.1, X.sub.2, . . . , X.sub.n]∈X) is a quotient of a measured value difference ΔC.sub.i([ΔC.sub.1, ΔC.sub.2, . . . , ΔC.sub.n-1]∈ΔC) obtained by subtracting two adjacent measured values in measured values C.sub.i([C.sub.1, C.sub.2, . . . , C.sub.n]∈C) of each analog M.sub.i([M.sub.1, M.sub.2, . . . , M.sub.n]∈M) in the to-be-monitored analog measurement point set M, and the time difference ΔT.sub.i([ΔT.sub.1, ΔT.sub.2, . . . , ΔT.sub.n-1]∈ΔT), n is a record number of the switching value signal set K with a serial number and a state, which are set in sequence, included in the content recorded in the time sequence event record table, and i denotes a switching value set in an i.sup.th time sequence event record table. Calculation results are shown in Table 5 below.

TABLE-US-00005 TABLE 5 Measured Switching Measured value Time Slope X.sub.i Serial value value difference difference ΔC.sub.i/ number Moment signal K.sub.i C.sub.i/° C. ΔC.sub.i/° C. ΔT.sub.i/s ΔT.sub.i 1 2019-04-10 11:13:22 130 K.sub.1 57.92 / / / 2 2019-04-10 11:15:32 AM 120 K.sub.2 59.40 1.48 130 s 0.0114 3 2019-04-10 11:15:49 AM 000 K.sub.3 60.35 0.95 17 s 0.0559 4 2019-04-10 11:16:01 AM 140 K.sub.4 60.88 0.53 12 s 0.0442 5 2019-04-10 11:17:01 AM 720 K.sub.5 62.77 1.89 61 s 0.0310 6 2019-04-10 11:17:06 AM 740 K.sub.6 62.84 0.07 5 s 0.0140

[0052] (1.3) An abnormal state estimated value P is calculated by integrating the history scatter point distribution record, the analog measurement point first-level alarm value and the measured value slope of the analog measurement point.

[0053] Specific steps of obtaining the abnormal state estimated value P are as follows.

[0054] (7.1) The abnormal state estimated value P is set to 0%, and when the measured value of the analog measurement point is greater than the analog measurement point first-level alarm value, the abnormal state estimated value P is set to 100%, and the watchman is pre-warned that the measured value of the measurement point is higher than an upper limit; when the measured value of the analog measurement point is not greater than the analog measurement point first-level alarm value and the measured value C.sub.i of the analog measurement point corresponding to the switching value K.sub.i is outside a positive direction of a 1.96 times mean square error σc centered on an average value c.sub.avi of the measured value histogram statistics TC.sub.i of the analog measurement point, that is, the measured value slope of the analog measurement point X.sub.i is greater than (c.sub.avi+1.96 σc), the abnormal state estimated value P is assigned to 50%, and step (6.2) is performed; when the measured value of the analog measurement point is not greater than the analog measurement point first-level alarm value and the measured value C.sub.i of the analog measurement point corresponding to the switching value Ki is not outside the positive direction of the 1.96 times mean square error σc centered on the average value c.sub.avi of the measured value histogram statistics TC.sub.i of the analog measurement point, that is, the measured value slope of the analog measurement point X.sub.i is not greater than (c.sub.avi+1.96 σc), σc is a measured value standard deviation, the abnormal state estimated value P is assigned to 40%, and step (6.2) is performed.

[0055] (7.2) When the measured value slope of the analog measurement point X.sub.i corresponding to the switching value K.sub.i is outside a positive direction of a 1.96 times mean square error σx centered on an average value x.sub.avi of the measured value slope of the analog measurement point histogram statistics TX.sub.i that is, the measured value slope of the analog measurement point X.sub.i is greater than (x.sub.avi+1.96 σx), step (6.3) is performed; when the measured value slope of the analog measurement point X.sub.i corresponding to the switching value K.sub.i is outside a negative direction of the 1.96 times mean square error σx centered on the average value x.sub.avi of the measured value slope of the analog measurement point histogram statistics TX.sub.i, that is, the measured value slope of the analog measurement point X.sub.i is less than (x.sub.avi+1.96 σx), σx is a measured value slope standard deviation, and step (6.4) is performed; and otherwise, the abnormal state estimated value P is set to 0%, and the watchman is not pre-warned.

[0056] (7.3) The watchman is pre-warned that the measured value of the measurement point is at a risk of being higher than the upper limit, previous switching values K.sub.t (0<t≤i, t is a positive integer) are compared to judge a number of times e (e=i−t, e is a positive integer) of continuous occurrence of the pre-warning that the measured value of the measurement point is at a risk of being higher than the upper limit, the abnormal state estimated value P is P+e×10%, i=i+1, and step (6.1) is performed.

[0057] (7.4) The watchman is pre-warned that a starting process step has a risk of timeout (the process step refers to a program step between the start of a program block flag bit and the end of a program block flag bit in the starting process of the unit), previous switching values K.sub.t (0<t≤i, t is a positive integer) are compared to judge a number of times q (q=i−t, q is a positive integer) of continuous occurrence of the pre-warning that the starting process step has a risk of timeout, the abnormal state estimated value P is P+q×10%, 1=1+1, and step (7.1) is performed.

[0058] Calculation results finally obtained are shown in Table 6 below.

TABLE-US-00006 TABLE 6 Measured State evaluated Moment value/° C. Slope value P 2019-04-10 11:13:22 57.92 130 2019-04-10 11:15:32 59.4 0.0114 50% AM 120 2019-04-10 11:15:49 60.35 0.0559 60% AM 000 2019-04-10 11:16:01 60.88 0.0442 70% AM 140 2019-04-10 11:17:01 62.77 0.0310 80% AM 720 2019-04-10 11:17:06 62.84 0.0140 90% AM 740

[0059] (1.4) No pre-warning is sent when the abnormal state estimated value P is below a threshold; and a pre-warning is sent to remind a watchman to perform a preventive operation when the abnormal state estimated value P is above the threshold. In the present embodiment, the threshold is 50%; that is, the abnormal state estimated value P is above 50%, and a pre-warning is sent to remind the watchman to perform a preventive operation.

[0060] In the present embodiment, the preventive operation performed by the watchman includes:

[0061] (1) confirming, on an upper computer of a monitoring system, whether the pre-warning is correct:

[0062] checking whether the unit is in a start-up state; and

[0063] calling out simulation diagrams to check whether an analog measured value is too high;

[0064] (2) reporting to an upper-level dispatching watchman:

[0065] reporting that a current starting unit has a risk of starting failure;

[0066] applying for recovering a right for controlling the unit; and

[0067] applying for, if a standby unit exists in the plant, starting the standby unit for machine replacement; and

[0068] (3) informing a watchman of the current plant:

[0069] informing the watchman of an abnormal condition; and

[0070] informing the watchman to go to the site for dealing with it in advance.

CONCLUSION

[0071] Thus, the present disclosure provides a standardized analysis method for estimating a working condition start-up state of a unit in super real-time by integrating time sequence actions, analog measured values and historical statistics, which may realize, when the analog measurement point of the unit has not reached the first-level alarm value 75° C. , faster-than-real-time monitoring of integrated historical and real-time switching value signals and measured values of the analog measurement point in an automatic detection and control manner through a computer, to provide an effective method for identifying hidden defects such as abnormal rising of the measured values and timeout of a start-up process step, so that the watchman can perform a preventive operation in advance prior to an accident (event), precious dealing time is won for the watchman, and losses and influence caused by the accident (event) are reduced.