Focus on the whole-process data storage of Industrial Automation

The process data storage of industrial automation has become the bottleneck of industrial automation systems with the development of more and more large-scale data collection technologies of field sensors.

In the past few minutes, the storage technology has become increasingly unable to meet the requirements of industrial automation systems for full-process data analysis, and needs to be changed to full-process data holographic storage.

The Data Storage Technology of the Industrial Automatic Monitoring System has also gradually changed. In the past, the technology of using the metadata table Stored Procedure data of relational databases increased with the increasing data volume, it is unable to meet the storage requirements of massive data, and will occupy a large amount of disk space (although very cheap, but not easy to maintain), followed by query problems, the query speed cannot meet the requirements of the conventional monitoring system (in seconds). The slow query may cause obstacles to subsequent data analysis, or the analysis cannot be completed at all. A large number of on-site sensors are invested, Which is wasted because the software of the upper monitoring system cannot be supported.

The full-process data storage technology meets the following requirements:

1. Holographic Storage: In theory, the sensor should be stored for each data collection, or all the data perceived by the upper-level communication system should be stored. By continuously improving the Sampling Accuracy of the upper-level communication system, improves the matching between the upper and lower bit systems;

2. Cross-section storage: used to analyze the system status of an accident or a historical point. When tracing industrial automation system faults, sampling points at the same time are required, or the sampling data of related points within a period of time to determine the cause of the problem;

3. Mature data: the data processed by the sampling data, including the conversion of the sample value and engineering value, and the alarm data triggered by the fault threshold value set manually;

4. Manual data: operation data, usually composed of operation logs, including the operation object and operation content;

The storage of the above-mentioned full-process data is not only an industrial automated historical storage system, but a comprehensive module of the upper-level software system, involving communication collection systems, data processing systems, historical storage systems, and log systems, its implementation involves updates of many new IT technologies, including file system management, network technology, big data technology, high-performance storage and retrieval design.

Focus on the whole-process data storage of Industrial Automation