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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

Inactive Publication Date: 2019-08-30
XINAO SHUNENG TECH CO LTD
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  • Abstract
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Problems solved by technology

[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, which may easily lead to false alarms and missed alarms, and when an alarm occurs, the equipment failure has already occurred, and effective prevention cannot be achieved

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  • Alarm method and device for SCADA system
  • Alarm method and device for SCADA system

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Embodiment Construction

[0052] In order to make the purpose, technical solutions and advantages of this specification clearer, the technical solutions of this specification will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Apparently, the described embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this specification.

[0053] In the prior art, the SCADA system alarm is based on the experience of those skilled in the art to set the alarm threshold or alarm condition, when the parameter value (for example, pressure value) of the energy equipment (for example, gas boiler) reaches the alarm threshold or meets the alarm condition , and send an alarm message. This method of artificially setting the alarm threshold or alarm condit...

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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.

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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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/41875G05B2219/32404Y02P90/02
Inventor 郑锡村杨锦成王振华杭小林
Owner XINAO SHUNENG TECH CO LTD
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