Alarm method and device for SCADA system

A technology for outputting alarms and statistical data, applied in general control systems, control/regulation systems, comprehensive factory control, etc., can solve problems such as lack of scientificity and rationality, false alarms, omissions, and inability to achieve effective prevention, etc. achieve precise control
CN110187679AInactive Publication Date: 2019-08-30XINAO SHUNENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
XINAO SHUNENG TECH CO LTD
Publication Date
2019-08-30
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an alarm method and device for an SCADA system. The method includes the following steps: determining a expected parameter type and a control chart type of an energy device; collecting corresponding device history data according to the expected parameter type; establishing a control chart corresponding to the control chart type based on the device history data; determining whether device real-time data collected by the SCADA system is abnormal through the control chart; and outputting alarm information if it is determined that the device real-time data collected by the SCADA system is abnormal. Based on historical data of the device during normal operation, process statistics quantity is calculated by sampling and grouping, a control limit is determined to establishthe control chart, process capability of the device is evaluated based on the control chart, so that it can be found in time whether the device is faulty or not.
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Description

technical field

[0001] The invention relates to the technical field of smart energy, in particular to an alarm method and device for a SCADA system. Background technique

[0002] SCADA (Supervisory Control And Data Acquisition) system, that is, data acquisition and monitoring control system, the current SCADA system alarm threshold setting is fixed and the rules are relatively simple, especially some key parameters, such as temperature, pressure, flow, etc., there are many human factors, generally It is set by the engineer according to the production process, roughly divided into four types: ultra-low limit alarm, ultra-high limit alarm, ultra-low limit alarm, ultra-high limit alarm, this setting method is completely dependent on the engineer's According to experience, it will basically not change after setting, so it lacks scientificity and rationality, and it is easy to cause false alarms and missed alarms. Moreover, when an alarm is generated, the equipment failure has al...

Claims

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