Hydropower station equipment real-time monitoring data monitoring system and monitoring method based on trend alarm

A data monitoring method and a technology of a data monitoring system, which are applied in general control systems, control/regulation systems, program control, etc., can solve problems such as faults that cannot be predicted in advance, and improve monitoring accuracy, accuracy and reliability , the effect of improving the accuracy

A data monitoring method and a technology of a data monitoring system, which are applied in general control systems, control/regulation systems, program control, etc., can solve problems such as faults that cannot be predicted in advance, and improve monitoring accuracy, accuracy and reliability , the effect of improving the accuracy

CN114237128APending Publication Date: 2022-03-25HUANENG LANCANG RIVER HYDROPOWER +1
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  • Hydropower station equipment real-time monitoring data monitoring system and monitoring method based on trend alarm
  • Hydropower station equipment real-time monitoring data monitoring system and monitoring method based on trend alarm
  • Hydropower station equipment real-time monitoring data monitoring system and monitoring method based on trend alarm

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the present invention provides a real-time monitoring data monitoring system for hydropower station equipment based on trend alarms, including:

[0042] The data acquisition module is used to respectively acquire the real-time monitoring data of the current operating status of the hydropower station equipment and the historical data within the preset time period;

[0043] An alarm threshold calculation module is used to preprocess the historical data, and utilize the preprocessed historical data to construct a trend alarm model, and obtain an alarm threshold according to the trend alarm model;

[0044] A real-time output value calculation module, configured to input the real-time monitoring data into the trend alarm model to obtain a real-time output value;

[0045] The judging module is used to judge whether the real-time output value is greater than the alarm threshold, and when it is greater than the alarm threshold, output an alarm signal...

Embodiment 2

[0051] Such as figure 2 As shown, the present invention provides a real-time monitoring data monitoring method for hydropower station equipment based on trend alarm, and its implementation method is as follows:

[0052] S1. Respectively obtain real-time monitoring data of the current operating status of hydropower station equipment and historical data within a preset time period;

[0053] S2. Preprocessing the historical data, and using the preprocessed historical data to construct a trend alarm model, and obtain an alarm threshold according to the trend alarm model, the implementation method is as follows:

[0054] S201. Preprocessing the historical data;

[0055] In the embodiment of the present invention, the preprocessing includes: filtering invalid data in the historical data and performing denoising processing on the historical data.

[0056] In the embodiment of the present invention, invalid points, abnormal points and illegal points in historical data and / or real-t...

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Abstract

The invention provides a hydropower station equipment real-time monitoring data monitoring system and monitoring method based on trend alarm, and belongs to the technical field of hydropower station monitoring. The method comprises the following steps: respectively acquiring real-time monitoring data and historical data; constructing a trend alarm model, and obtaining an alarm threshold according to the trend alarm model; inputting the real-time monitoring data into the trend alarm model to obtain a real-time output value; whether the real-time output value is larger than an alarm threshold value or not is judged, when the real-time output value is larger than the alarm threshold value, an alarm signal is output, and monitoring of the real-time monitoring data of the hydropower station equipment is completed. According to the method, early warning of the monitored hydroelectric equipment, evaluation of the state of the monitored hydroelectric equipment and decision support information can be effectively provided from trend extraction, the accuracy and reliability of real-time monitoring of a hydropower station are improved, and the technical effects of saving the labor cost are achieved.

Description

technical field [0001] The invention belongs to the technical field of hydropower station monitoring, and in particular relates to a trend alarm-based real-time monitoring data monitoring system and a monitoring method for hydropower station equipment. Background technique [0002] Hydropower station equipment occupies an important position in the development of modern industry. Ensuring the safe and stable operation of mechanical equipment is the basis for safe production and industrial development. Now, sensors for real-time monitoring of equipment status are installed in the equipment of hydropower stations, so that they can be monitored and viewed in real time when a failure occurs. However, this method cannot predict faults in advance. Therefore, there is an urgent need for a method that can predict faults in advance, such as predicting fault trends based on historical data. Effective trend extraction can provide early warning for monitoring hydropower equipment, and ev...

Claims

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Application Information

Patent Timeline
25 Mar 2022
Publication
CN114237128A
IPC
G05B19/042
CPC
G05B19/0428; G05B2219/24024
Inventors
袁湘华; 张捷