Industrial data acquisition method and system

A technology for industrial data and acquisition systems, applied in general control systems, control/regulation systems, comprehensive factory control, etc., can solve problems such as high resource occupation and low communication efficiency, reduce the number of connections established, and improve reading efficiency. , the effect of improving communication efficiency

Pending Publication Date: 2021-12-31
ZHEJIANG HUAZHANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention discloses an industrial data acquisition method and system, which are used to solve the problems that the existing acquisition scheme is mainly based on the synchronous acquisition mode, the communication efficiency is low and the resources are occupied more

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  • Industrial data acquisition method and system
  • Industrial data acquisition method and system

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Experimental program
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Embodiment 1

[0035] This embodiment provides as figure 1 An industrial data acquisition system shown, including

[0036] The Connector component is used to connect to external systems or directly to devices, and poll data or subscribe updates from them;

[0037] Converter converter, used to convert data from a specific protocol format to HZT-ODC protocol;

[0038] HZTODC-Client protocol for monitoring connectivity and communicating with HZTODC-Gateway through said HZT-ODC protocol;

[0039] Data storage, used to temporarily store data and other events generated by the connector before the data is transmitted to HZT-ODC;

[0040] Gateway service for bootstrapping of connectors, event store and HZTODC-Client.

[0041] The Connector components described in this embodiment include OPC DA Connector, CIP Connector, S7Connector, Modbus Connector, OPC UA Connector, MQTT Connector, BLEConnector, BACConnector and GEConnector.

[0042] In this embodiment, asynchronous, long-term connections are u...

Embodiment 2

[0045] In terms of specific implementation, this embodiment provides an industrial data acquisition system, specifically as follows: it includes a Connector component, which is designed to connect to an external system (OPC server) or directly to a device (such as Modbus or CIP).

[0046] After the Connector components in this embodiment are connected, the connector either polls data from those systems, or subscribes to updates. Among them, polling and subscription depend on the protocol function.

[0047] When this embodiment is further implemented, the subscription model is used for the OPC connector, and the polling model is used for the Modbus.

[0048] The connector of this embodiment can also push updates to the device directly or through an external system. And you can define your own connectors using custom guides.

[0049] In this embodiment, the Converter is responsible for converting data from a specific protocol format into an HZT-ODC format. where the converter i...

Embodiment 3

[0062] refer to figure 2 As shown, the present embodiment provides a method for collecting industrial data, comprising the following steps:

[0063] S1 initialization is completed, GateWay reads the basic configuration information from the XML file and connects to the corresponding configuration database according to the information;

[0064] S2 performs group loading according to the attributes of the database configuration group, loads the protocol according to the protocol requirements required by the group, and loads the read point table according to the group information;

[0065] S3 automatically sorts and packs the points according to the protocol type and the specific register naming rules of the protocol type, automatically forms the packet parsing rules, and judges whether the data loading is completed. If not, enter S2, and if yes, enter S4;

[0066] S4 reads the main thread to establish a link, reads the whole box memory according to the combined data package, an...

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Abstract

The invention relates to the technical field of data acquisition, in particular to an industrial data acquisition method and system, and the system comprises a Connector component, a Converter, an HZTODC-Client protocol, data storage and gateway service. According to the invention, the problems that the existing acquisition scheme is mainly based on a synchronous acquisition mode, the communication efficiency is low and more resources are occupied are solved. According to the method, the single Tag can be directly read, variables are spliced into a large packet which does not exceed a PDU packet as much as possible according to the variable structure mode of the collected equipment, and a mode of reading multiple data at one time is carried out, so that the number of connection establishment times is reduced as much as possible, and the reading efficiency is improved. Due to the fact that partial protocols support a subscription type reading mode, change values can be obtained more efficiently. According to the method, the variable with the changed value can generate a value-changed area, so that the communication traffic is reduced and the communication efficiency is improved when the client comes for connection.

Description

technical field [0001] The invention relates to the technical field of data acquisition, in particular to an industrial data acquisition method and system. Background technique [0002] The communication bottleneck of the industrial real-time network mainly lies in the handshake time. In the Chinese invention patent document with the patent number CN202110434203.1, an industrial big data acquisition method and system are disclosed. The method includes: multi-process concurrent acquisition of industrial data, each acquisition The nodes send the industrial data to the server after the autocorrelation analysis of the collected industrial data; create multi-threaded industrial data processing tasks based on the NI O server, generate a multi-task message queue through Kafka, and use Spark Streaming to process the data in the multi-task message queue , and store the processing results in the HDFS file system. [0003] The above-mentioned patent can solve the problem of excessive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/4185G05B2219/33139Y02P90/02
Inventor 王爱燕周斌杰徐小伟倪锋朱根荣
Owner ZHEJIANG HUAZHANG TECH
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