CN110147086A - The determination method and system of the health status of online equipment in power plant - Google Patents
The determination method and system of the health status of online equipment in power plant Download PDFInfo
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- CN110147086A CN110147086A CN201910354974.2A CN201910354974A CN110147086A CN 110147086 A CN110147086 A CN 110147086A CN 201910354974 A CN201910354974 A CN 201910354974A CN 110147086 A CN110147086 A CN 110147086A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
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Abstract
The invention discloses a kind of determination method and system of the health status of online equipment in power plant, the determining method includes: to obtain the actual operation parameters of the online equipment in power plant；Obtain the corresponding theoretical operating parameter of the online equipment；Calculate the difference between the actual operation parameters and the theoretical operating parameter；Judge whether the difference is more than given threshold, if so, it is abnormal to determine that the health status of the online equipment exists；Otherwise, it determines the health status of the online equipment is normal.The present invention can find in time in power plant each online equipment there are the problem of, it is diagnosed to be the failure cause and fault severity level of online equipment, accurately and reliably foundation is provided for emergency flight control and maintenance management, the generation of major accident is avoided, also for the safety in production of power plant and energy-saving provides reliable support.
Description
Technical field
The present invention relates to device management techniques field, in particular to the determination of the health status of online equipment in a kind of power plant
Method and system.
Background technique
Power plant to safety in production and it is energy-saving have high requirements, therefore necessarily to each online equipment in power plant
The reliability of (also known as unit equipment, such as various pumps, regulating valve, damper, heat exchanger) and safety propose higher want
It asks.Online equipment failure must be found as early as possible, once failure or accident, not only result in the interruption of process production link
With weight huge economic loss, and it is also possible to cause personal injury and pollution environment and various social concerns.
Over time, the operating parameter of online equipment may change (such as external loading changes),
For line equipment since running wastage performance may deteriorate (dynamic response performance of such as equipment, including response speed), automatic control can
Concussion can occur (such as limit cycle is unable to accurately control).Currently, generally using DCS (Distributed Control in power plant
System, dcs) control and monitor online equipment, but DCS is served only for obtaining the operation ginseng of online equipment
Number does not analyze the process of performance change according to the data of acquisition, cannot find sub-health status existing for online equipment as early as possible
(such as equipment over-current and -load, concussion, limit cycle), cannot find that the performance degradation problems of online equipment and automatic control are deposited as early as possible
Performance issue the problems such as (for example do not control accurately, control deviation is big), only when device fails or DCS issue
Relevant issues can be just exposed after alarm signal.
In order to improve above-mentioned DCS there are the problem of, experienced operation and the data that acquires according to DCS of maintenance personnel and set
Standby technical parameter, checks online equipment operation data, carries out analysis assessment to equipment performance.But have in power plant each
The equipment such as kind pump, regulating valve, damper, heat exchanger, quantity is hundreds and thousands of, and workload is too big, and repetition is cumbersome, dependent on artificial
Mode analyze to the health status of online equipment obviously improper, there is analysis not in time and precision of analysis
The problems such as not ideal enough.
Summary of the invention
The technical problem to be solved by the present invention is to pass through in the prior art manual type to the health status of online equipment into
The defects of capable analysis presence analysis is not in time and precision of analysis is also not ideal enough is, and it is an object of the present invention to provide in a kind of power plant
The determination method and system of the health status of online equipment.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides a kind of determination method of the health status of online equipment in power plant, and the determining method includes:
Obtain the actual operation parameters of the online equipment in power plant；
Obtain the corresponding theoretical operating parameter of the online equipment；
Calculate the difference between the actual operation parameters and the theoretical operating parameter；
Judge whether the difference is more than given threshold, if so, there are different for the health status of the determining online equipment
Often；Otherwise, it determines the health status of the online equipment is normal.
Preferably, described the step of obtaining the online equipment corresponding theoretical operating parameter, includes:
Obtain physical parameter and the corresponding process flow of the online equipment of the fluid in the online equipment；
Physical parameter and the process flow based on the fluid, simulation calculation obtain the corresponding reason of the online equipment
By operating parameter.
Judge whether the difference is more than given threshold preferably, described, if so, determining the health of the online equipment
State exists abnormal；Otherwise, it determines the normal step of the health status of the online equipment includes:
When the difference is less than or equal to the first given threshold, it is determined that the health status of the online equipment is just
Often；
When the difference is greater than the first given threshold and when less than the second given threshold, then obtains the online equipment and going through
Historical operating parameter in the history period, and determine that the performance of the online equipment deteriorates feelings according to the historical operating parameter
Condition；
When the difference is more than or equal to second given threshold, it is determined that the online equipment breaks down,
And it is diagnosed to be the fault type that the online equipment occurs, it is simultaneously emitted by failure alarm signal.
Preferably, the step of actual operation parameters for obtaining the online equipment in power plant, includes:
The first operating parameter is obtained from the dcs in power plant；
The actual operation parameters associated with the online equipment are obtained from first operating parameter.
Preferably, after described the step of obtaining the actual operation parameters of online equipment in power plant, described calculating the reality
Before the step of difference between border operating parameter and the theoretical operating parameter further include:
The actual operation parameters are pre-processed；
Judge whether the pretreated actual operation parameters are valid data, if so, continuing to execute the calculating institute
The step of stating the difference between actual operation parameters and the theoretical operating parameter；If it is not, then reacquiring the actual motion
Parameter；
Wherein, the valid data are for characterizing the corresponding complete data packet of the actual operation parameters successfully obtained
The case where.
The present invention also provides a kind of determination system of the health status of online equipment in power plant, the determining system includes real
Border operating parameter obtains module, theoretical operating parameter obtains module, difference calculating module and first judgment module；
The actual operation parameters obtain the actual operation parameters that module is used to obtain the online equipment in power plant；
The theory operating parameter obtains module for obtaining the corresponding theoretical operating parameter of the online equipment；
The difference calculating module is used to calculate the difference between the actual operation parameters and the theoretical operating parameter；
The first judgment module is for judging whether the difference is more than given threshold, if so, determining described online
The health status of equipment exists abnormal；Otherwise, it determines the health status of the online equipment is normal.
Preferably, it includes data capture unit and simulation computing unit that the theory operating parameter, which obtains module,；
The data capture unit be used to obtain fluid in the online equipment physical parameter and the online equipment
Corresponding process flow；
The simulation computing unit for based on the fluid physical parameter and the process flow, simulation calculation obtain
The corresponding theoretical operating parameter of the online equipment.
Preferably, the first judgment module is used for when the difference is less than or equal to the first given threshold, then really
The health status of the fixed online equipment is normal；
The first judgment module is also used to be greater than the first given threshold when the difference and when less than the second given threshold,
Historical operating parameter of the online equipment in historical time section is then obtained, and according to historical operating parameter determination
The performance deterioration condition of online equipment；
The first judgment module is also used to when the difference is more than or equal to second given threshold, it is determined that
The online equipment breaks down, and is diagnosed to be the fault type that the online equipment occurs, and is simultaneously emitted by failure alarm signal.
Preferably, it includes the first operating parameter acquiring unit and actual operation parameters that the actual operation parameters, which obtain module,
Acquiring unit；
The first operating parameter acquiring unit is used to obtain the first operation ginseng from the dcs in power plant
Number；
The actual operation parameters acquiring unit is used to obtain and the online equipment phase from first operating parameter
The associated actual operation parameters.
Preferably, the determining system further includes preprocessing module and the second judgment module；
The preprocessing module is for pre-processing the actual operation parameters；
Second judgment module for judging whether the pretreated actual operation parameters are valid data, if
It is the step of continuing to execute the difference calculated between the actual operation parameters and the theoretical operating parameter；If it is not, then
Reacquire the actual operation parameters；
Wherein, the valid data are for characterizing the corresponding complete data packet of the actual operation parameters successfully obtained
The case where.
The positive effect of the present invention is that:
In the present invention, from the actual operation parameters for obtaining online equipment in power plant in DCS, and simulation calculation is set online
Standby corresponding theoretical operating parameter, when the difference of the two is more than that given threshold then determines the health status of the online equipment there are different
Often, otherwise determine that the health status of online equipment is normal, so as to find to ask existing for each online equipment in power plant in time
Topic, is diagnosed to be the failure cause and fault severity level of online equipment, provides accurately and reliably for emergency flight control and maintenance management
Foundation avoids the generation of major accident, also for the safety in production of power plant and energy-saving provides reliable support.
Detailed description of the invention
Fig. 1 is the flow chart of the determination method of the health status of online equipment in the power plant of the embodiment of the present invention 1.
Fig. 2 is the flow chart of the determination method of the health status of online equipment in the power plant of the embodiment of the present invention 2.
Fig. 3 is the module diagram of the determination system of the health status of online equipment in the power plant of the embodiment of the present invention 3.
Fig. 4 is the module diagram of the determination system of the health status of online equipment in the power plant of the embodiment of the present invention 4.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
Embodiment 1
As shown in Figure 1, the determination method of the health status of online equipment includes: in the power plant of the present embodiment
S101, obtain power plant in online equipment actual operation parameters；
S102, the corresponding theoretical operating parameter of online equipment is obtained；
Difference between S103, calculating actual operation parameters and theoretical operating parameter；
S104, judge whether difference is more than given threshold, if so, it is abnormal to determine that the health status of online equipment exists；
Otherwise, it determines the health status of online equipment is normal.
Such as air door, in order to guarantee the positioning accuracy and stability of air door, need to the dynamic response performance of air door into
Row analysis, if it is more than to a certain degree that actual dynamic response performance and theoretical dynamic response performance, which deviate, it is determined that air door
There are problems for positioning accuracy and stability；It is also similar for the analytic process of other online equipments such as valve, pump etc., herein just not
It repeats again.
I.e. by being diagnosed in real time to each online equipment, the sub-health state of each online equipment is found in time, is examined
It is disconnected go out online equipment over-current and -load that may be present, control deviation, concussion, limit cycle, control performance be poor, response abnormality, overtemperature,
The failures such as efficiency exception, valve leaks, performance deterioration, are diagnosed to be equipment fault reason and fault severity level, are emergency flight control
It is accurate to provide with maintenance management, and reliable foundation avoids the generation of major accident.
In the present embodiment, from the actual operation parameters for obtaining online equipment in power plant in DCS, and simulation calculation is obtained online
The corresponding theoretical operating parameter of equipment, when the difference of the two is more than that given threshold then determines that the health status of the online equipment exists
It is abnormal, determine that the health status of online equipment is normal, otherwise so as to be found in power plant in time existing for each online equipment
Problem is diagnosed to be the failure cause and fault severity level of online equipment, provides accurately and reliably for emergency flight control and maintenance management
Foundation, avoid the generation of major accident, also for the safety in production of power plant and energy-saving provide reliable support.
Embodiment 2
As shown in Fig. 2, in the power plant of the present embodiment the determination method of the health status of online equipment be to embodiment 1 into
One step is improved, specifically:
Step S101 includes:
S1011, the first operating parameter is obtained from the dcs in power plant；
S1012, actual operation parameters associated with online equipment are obtained from the first operating parameter.
Step S102 includes:
S1021, obtain online equipment in fluid physical parameter and the corresponding process flow of online equipment；
S1022, the physical parameter based on fluid and process flow, simulation calculation obtain the corresponding theoretical operation of online equipment
Parameter.
After step S102, before step S103 further include:
S10301, actual operation parameters are pre-processed；
S10302, judge whether pretreated actual operation parameters are valid data, if so, continuing to execute step 103；
If it is not, then reacquiring actual operation parameters；
Wherein, valid data are used to characterize the case where actual operation parameters that successfully obtain corresponding complete data packet.
Step S104 includes:
S1041, when difference be less than or equal to the first given threshold when, it is determined that the health status of online equipment is normal；
When difference is greater than the first given threshold and when less than the second given threshold, then online equipment is obtained in historical time section
Interior historical operating parameter, and determine according to historical operating parameter the performance deterioration condition of online equipment；
When difference is more than or equal to the second given threshold, it is determined that online equipment breaks down, and is diagnosed to be online
The fault type that equipment occurs, is simultaneously emitted by failure alarm signal.
In addition, to the data of the performance deterioration condition for determining online equipment according to historical operating parameter, being diagnosed to be and setting online
The data such as preparation raw data, the failure alarm signal of fault type are stored, and record corresponding failure problems log,
The health status of each online equipment of real-time update simultaneously.
In the present embodiment, from the actual operation parameters for obtaining online equipment in power plant in DCS, and simulation calculation is obtained online
The corresponding theoretical operating parameter of equipment, when the difference of the two is more than that given threshold then determines that the health status of the online equipment exists
It is abnormal, determine that the health status of online equipment is normal, otherwise so as to be found in power plant in time existing for each online equipment
Problem is diagnosed to be the failure cause and fault severity level of online equipment, provides accurately and reliably for emergency flight control and maintenance management
Foundation, avoid the generation of major accident, also for the safety in production of power plant and energy-saving provide reliable support.
Embodiment 3
As shown in figure 3, the determination system of the health status of online equipment includes actual motion ginseng in the power plant of the present embodiment
Number obtains module 1, theoretical operating parameter obtains module 2, difference calculating module 3 and first judgment module 4.
Actual operation parameters obtain the actual operation parameters that module 1 is used to obtain the online equipment in power plant；
Theoretical operating parameter obtains module 2 for obtaining the corresponding theoretical operating parameter of online equipment；
Difference calculating module 3 is used to calculate the difference between actual operation parameters and theoretical operating parameter；
First judgment module 4 is for judging whether difference is more than given threshold, if so, determining the healthy shape of online equipment
State exists abnormal；Otherwise, it determines the health status of online equipment is normal.
Such as air door, in order to guarantee the positioning accuracy and stability of air door, need to the dynamic response performance of air door into
Row analysis, if it is more than to a certain degree that actual dynamic response performance and theoretical dynamic response performance, which deviate, it is determined that air door
There are problems for positioning accuracy and stability；It is also similar for the analytic process of other online equipments such as valve, pump etc., herein just not
It repeats again.
I.e. by being diagnosed in real time to each online equipment, the sub-health state of each online equipment is found in time, is examined
It is disconnected go out online equipment over-current and -load that may be present, control deviation, concussion, limit cycle, control performance be poor, response abnormality, overtemperature,
The failures such as efficiency exception, valve leaks, performance deterioration, are diagnosed to be equipment fault reason and fault severity level, are emergency flight control
It is accurate to provide with maintenance management, and reliable foundation avoids the generation of major accident.
In the present embodiment, from the actual operation parameters for obtaining online equipment in power plant in DCS, and simulation calculation is obtained online
The corresponding theoretical operating parameter of equipment, when the difference of the two is more than that given threshold then determines that the health status of the online equipment exists
It is abnormal, determine that the health status of online equipment is normal, otherwise so as to be found in power plant in time existing for each online equipment
Problem is diagnosed to be the failure cause and fault severity level of online equipment, provides accurately and reliably for emergency flight control and maintenance management
Foundation, avoid the generation of major accident, also for the safety in production of power plant and energy-saving provide reliable support.
Embodiment 4
As shown in figure 4, in the power plant of the present embodiment the determination system of the health status of online equipment be to embodiment 3 into
One step is improved, specifically:
It includes the first operating parameter acquiring unit 11 and actual operation parameters acquiring unit that actual operation parameters, which obtain module 1,
12；
First operating parameter acquiring unit 11 from the dcs in power plant for obtaining the first operating parameter；
Actual operation parameters acquiring unit 12 is used to obtain reality associated with online equipment from the first operating parameter
Operating parameter.
It includes data capture unit 21 and simulation computing unit 22 that theoretical operating parameter, which obtains module 2,；
Data capture unit 21 is used to obtain the physical parameter and the corresponding technique of online equipment of the fluid in online equipment
Process；
Simulation computing unit 22 for based on fluid physical parameter and process flow, simulation calculation obtain online equipment pair
The theoretical operating parameter answered.
The system of determination further includes preprocessing module 5 and the second judgment module 6；
Preprocessing module 5 is for pre-processing actual operation parameters；
Second judgment module 6 is for judging whether pretreated actual operation parameters are valid data, if so, continuing to hold
Row calculates the step of difference between actual operation parameters and theoretical operating parameter；If it is not, then reacquiring actual operation parameters；
Wherein, valid data are used to characterize the case where actual operation parameters that successfully obtain corresponding complete data packet
First judgment module 4 is used for when difference is less than or equal to the first given threshold, it is determined that online equipment is good for
Health state is normal；
First judgment module 4 is also used to be greater than the first given threshold when difference and when less than the second given threshold, then obtains
Historical operating parameter of the online equipment in historical time section, and determine that the performance of online equipment deteriorates according to historical operating parameter
Situation；
First judgment module 4 is also used to when difference is more than or equal to the second given threshold, it is determined that online equipment hair
Raw failure, and it is diagnosed to be the fault type of online equipment generation, it is simultaneously emitted by failure alarm signal.
In addition, to the data of the performance deterioration condition for determining online equipment according to historical operating parameter, being diagnosed to be and setting online
The data such as preparation raw data, the failure alarm signal of fault type are stored, and record corresponding failure problems log,
The health status of each online equipment of real-time update simultaneously.
In the present embodiment, from the actual operation parameters for obtaining online equipment in power plant in DCS, and simulation calculation is obtained online
The corresponding theoretical operating parameter of equipment, when the difference of the two is more than that given threshold then determines that the health status of the online equipment exists
It is abnormal, determine that the health status of online equipment is normal, otherwise so as to be found in power plant in time existing for each online equipment
Problem is diagnosed to be the failure cause and fault severity level of online equipment, provides accurately and reliably for emergency flight control and maintenance management
Foundation, avoid the generation of major accident, also for the safety in production of power plant and energy-saving provide reliable support.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of determination method of the health status of online equipment in power plant, which is characterized in that the determining method includes:
Obtain the actual operation parameters of the online equipment in power plant；
Obtain the corresponding theoretical operating parameter of the online equipment；
Calculate the difference between the actual operation parameters and the theoretical operating parameter；
Judge whether the difference is more than given threshold, if so, it is abnormal to determine that the health status of the online equipment exists；It is no
Then, determine that the health status of the online equipment is normal.
2. the determination method of the health status of online equipment in power plant as described in claim 1, which is characterized in that the acquisition
The step of online equipment corresponding theoretical operating parameter includes:
Obtain physical parameter and the corresponding process flow of the online equipment of the fluid in the online equipment；
Physical parameter and the process flow based on the fluid, simulation calculation obtain the corresponding theoretical fortune of the online equipment
Row parameter.
3. the determination method of the health status of online equipment in power plant as described in claim 1, which is characterized in that the judgement
Whether the difference is more than given threshold, if so, it is abnormal to determine that the health status of the online equipment exists；Otherwise, it determines
The step that the health status of the online equipment is normal includes:
When the difference is less than or equal to the first given threshold, it is determined that the health status of the online equipment is normal；
When the difference is greater than the first given threshold and when less than the second given threshold, then the online equipment is obtained in history
Between historical operating parameter in section, and determine according to the historical operating parameter performance deterioration condition of the online equipment；
When the difference is more than or equal to second given threshold, it is determined that the online equipment breaks down, and examines
The fault type that the disconnected online equipment described out occurs, is simultaneously emitted by failure alarm signal.
4. the determination method of the health status of online equipment in power plant as described in claim 1, which is characterized in that the acquisition
The step of actual operation parameters of online equipment in power plant includes:
The first operating parameter is obtained from the dcs in power plant；
The actual operation parameters associated with the online equipment are obtained from first operating parameter.
5. the determination method of the health status of online equipment in power plant as described in claim 1, which is characterized in that the acquisition
In power plant the step of the actual operation parameters of online equipment after, described calculate the actual operation parameters and the theoretical operation
Before the step of difference between parameter further include:
The actual operation parameters are pre-processed；
Judge whether the pretreated actual operation parameters are valid data, if so, continuing to execute the calculating reality
The step of difference between border operating parameter and the theoretical operating parameter；If it is not, then reacquiring the actual operation parameters；
Wherein, the valid data are used to characterize the feelings of the corresponding complete data packet of the actual operation parameters successfully obtained
Condition.
6. the determination system of the health status of online equipment in a kind of power plant, which is characterized in that the determining system includes practical
Operating parameter obtains module, theoretical operating parameter obtains module, difference calculating module and first judgment module；
The actual operation parameters obtain the actual operation parameters that module is used to obtain the online equipment in power plant；
The theory operating parameter obtains module for obtaining the corresponding theoretical operating parameter of the online equipment；
The difference calculating module is used to calculate the difference between the actual operation parameters and the theoretical operating parameter；
The first judgment module is for judging whether the difference is more than given threshold, if so, determining the online equipment
Health status exist it is abnormal；Otherwise, it determines the health status of the online equipment is normal.
7. the determination system of the health status of online equipment in power plant as claimed in claim 6, which is characterized in that the theory
It includes data capture unit and simulation computing unit that operating parameter, which obtains module,；
The data capture unit is used to obtain the physical parameter of the fluid in the online equipment and the online equipment corresponds to
Process flow；
The simulation computing unit is used for physical parameter and the process flow based on the fluid, and simulation calculation obtains described
The corresponding theoretical operating parameter of online equipment.
8. the determination system of the health status of online equipment in power plant as claimed in claim 6, which is characterized in that described first
Judgment module is used for when the difference is less than or equal to the first given threshold, it is determined that the health status of the online equipment
Normally；
The first judgment module is also used to be greater than the first given threshold when the difference and when less than the second given threshold, then obtains
It takes historical operating parameter of the online equipment in historical time section, and is determined according to the historical operating parameter described online
The performance deterioration condition of equipment；
The first judgment module is also used to when the difference is more than or equal to second given threshold, it is determined that described
Online equipment breaks down, and is diagnosed to be the fault type that the online equipment occurs, and is simultaneously emitted by failure alarm signal.
9. the determination system of the health status of online equipment in power plant as claimed in claim 6, which is characterized in that the reality
It includes the first operating parameter acquiring unit and actual operation parameters acquiring unit that operating parameter, which obtains module,；
The first operating parameter acquiring unit from the dcs in power plant for obtaining the first operating parameter；
The actual operation parameters acquiring unit is used to obtain from first operating parameter associated with the online equipment
The actual operation parameters.
10. the determination system of the health status of online equipment in power plant as claimed in claim 6, which is characterized in that described true
Determining system further includes preprocessing module and the second judgment module；
The preprocessing module is for pre-processing the actual operation parameters；
Second judgment module for judging whether the pretreated actual operation parameters are valid data, if so, after
Continuous the step of executing the difference calculated between the actual operation parameters and the theoretical operating parameter；If it is not, then again
Obtain the actual operation parameters；
Wherein, the valid data are used to characterize the feelings of the corresponding complete data packet of the actual operation parameters successfully obtained
Condition.
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| CN112829794A (en) * | 2021-01-05 | 2021-05-25 | 株洲中车时代电气股份有限公司 | Contactor fault early warning method and related device |
| CN113219927A (en) * | 2021-05-13 | 2021-08-06 | 南京联迪信息系统股份有限公司 | Industrial internet platform monitoring data transmission and exchange method and system |
| CN113242231A (en) * | 2021-05-07 | 2021-08-10 | 北京华云安信息技术有限公司 | Node processing method, device, equipment and computer readable storage medium |
| CN114322213A (en) * | 2021-12-28 | 2022-04-12 | 上海美控智慧建筑有限公司 | Polling environmental control method, system, electronic equipment and storage medium |
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