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Heartbeat detection method of SCADA distribution type platform

A distributed platform and heartbeat detection technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as complex business processing, achieve the effects of saving network resources, improving usability, and reducing misjudgment rates

Inactive Publication Date: 2015-01-28
GUODIAN NANJING AUTOMATION
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In a large-scale distributed SCADA monitoring system, business processing is very complex, and its security and reliability are key issues in system design

Method used

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  • Heartbeat detection method of SCADA distribution type platform
  • Heartbeat detection method of SCADA distribution type platform
  • Heartbeat detection method of SCADA distribution type platform

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] The heartbeat detection method and optimization strategy under the SCADA distributed platform of the present invention mainly include four parts.

[0025] 1. Heartbeat thread design

[0026] Design a heartbeat detection service process for each node in the SCADA distributed system (including active and standby servers, active and standby workstations), and establish two threads in the heartbeat detection service process to realize the heartbeat detection mechanism, such as figure 1 As shown, the schematic diagram of the heartbeat detection mechanism.

[0027] Heartbeat sending thread A:

[0028] This thread is used to send heartbeat packets to the target node server every 5 seconds. Before sending, it is first judged whether the maximum heartbeat loss times of the node for the target node is greater than 3, and if so, it is ...

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Abstract

The invention discloses a heartbeat detection method of an SCADA distribution type platform. A heartbeat sending thread and a heartbeat receiving thread are coordinated to carry out fault detecting, the sending thread sends heartbeat to target nodes, and the state of the nodes is detected by judging the maximum number of losing times of the heartbeat; the receiving thread is used for receiving the heartbeat and replies when normally receiving the heartbeat, and otherwise the maximum number of losing times of the heartbeat adds one. Under the situation that the network state is busy, the heartbeat sending thread and the heartbeat receiving thread pause, a command packet is used for replacing the heartbeat to detect the state of the nodes, and the network resource can be saved. According to the heartbeat detection method, the availability of a system can be greatly improved, and the misjudgement rate of node faults is decreased.

Description

technical field [0001] The invention relates to a heartbeat detection method under a SCADA distributed platform, belonging to the technical field of SCADA system detection. Background technique [0002] SCADA system is the data acquisition and monitoring control system, which can be widely used in many fields such as power system, water conservancy monitoring system, petroleum, chemical industry, rail transit and other industries, such as data acquisition, monitoring control and process control. SCADA system is a computer-based production process control and scheduling automation system. It can monitor and control various operating environments and various operating equipment to realize various functions such as data collection, equipment control, measurement, parameter adjustment, various signal alarms, and historical data storage. [0003] In a large-scale distributed SCADA monitoring system, business processing is very complex, and its security and reliability are key is...

Claims

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Application Information

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IPC IPC(8): H04L12/26
Inventor 李佑文包德梅刘志超颜儒彬曹黎明罗存褚红健岳以洋
Owner GUODIAN NANJING AUTOMATION
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