Multisource data based adaptive dead zone setting method of alarm system in petrochemical process
A technology of alarm system and multi-source data, applied in general control system, control/adjustment system, program control, etc., can solve problems such as inaccurate alarm information and poor security, achieve accurate alarm information, reduce shock alarms, and reduce errors The effect of positive rate and false positive rate
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[0015] [Example 1]
[0016] Embodiments of the present invention consist of figure 1 As shown in the figure, it includes the establishment of a real-time collection platform for multi-source data of the device, data preprocessing, operation ledger analysis, calculation of adaptive dead zone range, and development of an alarm system with adaptive dead zone settings.
[0017] Construction of real-time data collection platform: According to the data collection interface provided by the enterprise (the sampling frequency in the real-time database can reach 1 time / min), an OPC DA server framework implemented by VC++ programming is used to collect and run from the control system of the device or the enterprise real-time database. Real-time data, refresh the real-time data table of the server, and store the real-time data in the historical data table of each parameter in a time series. Each variable saves 10,000 data in the server's real-time data table, and the real-time database i...
Example Embodiment
[0027] [Example 2]
[0028] Embodiments of the present invention consist of figure 1 As shown in the figure, it includes the establishment of a real-time collection platform for multi-source data of the device, data preprocessing, operation ledger analysis, calculation of adaptive dead zone range, and development of an alarm system with adaptive dead zone settings.
[0029]Construction of real-time data collection platform: According to the data collection interface provided by the enterprise (the sampling frequency in the real-time database can reach 2 times / min), an OPC DA server framework implemented by VC++ programming is used to collect and run from the control system of the device or the enterprise real-time database. Real-time data, refresh the real-time data table of the server, and store the real-time data in the historical data table of each parameter in a time series. Each variable saves 10,000 data in the server's real-time data table, and the real-time database i...
Example Embodiment
[0039] [Example 3]
[0040] Embodiments of the present invention consist of figure 1 As shown in the figure, it includes the establishment of a real-time collection platform for multi-source data of the device, data preprocessing, operation ledger analysis, calculation of adaptive dead zone range, and development of an alarm system with adaptive dead zone settings.
[0041] Construction of real-time data collection platform: According to the data collection interface provided by the enterprise (the frequency of data collection from the DCS system using the OPC DA specification can reach 1 time / second), an OPC DA server framework implemented by VC++ programming is used to control the slave device. The system or enterprise real-time database collects and operates real-time data, refreshes the real-time data table of the server, and stores the real-time data in the historical data table of each parameter in a time series. Each variable saves 10,000 data in the server's real-time...
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