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Field-bus data sharing method and device

A technology of data sharing and field bus, which is applied in the direction of bus network, data exchange network, data exchange through path configuration, etc. It can solve the problem that data cannot be shared safely and reliably, and achieve the effect of reliable sharing

Active Publication Date: 2017-09-15
江西泰豪智能电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a field bus data sharing method and device to solve the problem in the prior art that the equipment operating data cannot be safely and reliably connected to the Internet for sharing

Method used

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  • Field-bus data sharing method and device
  • Field-bus data sharing method and device

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Embodiment 1

[0064] Such as figure 1 As shown, it is a schematic flowchart of a fieldbus data sharing method provided by an embodiment of the present invention, and the execution subject of the fieldbus data sharing method may be figure 2Shown fieldbus data sharer, described fieldbus data sharer can comprise: RS485-TTL conversion circuit, Ethernet-TTL conversion circuit and single-chip microcomputer, this fieldbus data sharer one end accesses Modbus bus through RS485 interface, another One end is connected to the Internet through the RJ45 interface.

[0065] The fieldbus data sharing method may include:

[0066] In step S101, the operation data of the specified Modbus device is acquired through the data collector.

[0067] The data collector reads the operation data of the specified Modbus device through the Modbus protocol, and the operation data is first preprocessed by the RS485-TTL conversion circuit, and then further processed by the single-chip microcomputer. In Modbus equipment,...

Embodiment 2

[0118] Such as Figure 7 As shown, it is a schematic block diagram of a fieldbus data sharing device provided by an embodiment of the present invention, and the fieldbus data sharing device may include:

[0119] Operation data acquisition module 701, for obtaining the operation data of designated Modbus equipment by data collector;

[0120] Key acquisition module 702, configured to acquire the random key provided by the remote server;

[0121] An encryption module 703, configured to encrypt the running data according to the random key to obtain encrypted data;

[0122] A character conversion module 704, configured to perform character conversion on the encrypted data to obtain character data;

[0123] A message encapsulation module 705, configured to encapsulate the character data into an HTTP message;

[0124] A sharing module 706, configured to share the HTTP message with the remote server via the Internet.

[0125] Preferably, the key acquisition module 702 may include:...

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Abstract

The invention belongs to the technical field of field-bus control, and particularly relates to a field-bus data sharing method and device. The field-bus data sharing method comprises the steps of obtaining running data of an appointed Modbus device by a data acquirer; obtaining a random key provided by a far-end server; encrypting the running data based on the random key to obtain encryption data; carrying out character conversion for the encrypted data to obtain character data; and packaging the character data into an HTTP message and sharing the HTTP message to the far-end server through the internet. Through the field-bus data sharing method and device, the running data of the Modbus device are encrypted before the Modbus device is connected to the internet, the data are converted into an HTTP message format which is suitable for transmission in the internet, and the HTTP message is shared to the far-end server through the internet, safe and reliable data sharing in the internet is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of field bus control, and in particular relates to a field bus data sharing method and device. Background technique [0002] Fieldbus is an industrial data bus that has developed rapidly in recent years. It mainly solves the digital communication between field devices such as intelligent instruments and meters, controllers, and actuators on the industrial scene, as well as the communication between these field control devices and advanced control systems. Information transfer problem. Due to a series of outstanding advantages such as simplicity, reliability, economy and practicality of the field bus, it has been highly valued by many standard groups and computer manufacturers. [0003] Among them, Modbus was invented by Modicon (now a brand of Schneider Electric) in 1979. It is the first bus protocol in the world that is really used in industrial fields and is widely used in industrial and mining enterprise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L12/40
CPCH04L12/40H04L63/0428H04L63/06H04L63/0838H04L63/0869H04L67/02H04L67/10H04L69/16H04L2012/40221
Inventor 熊科熊必成肖志义杨勇马光亮
Owner 江西泰豪智能电力科技有限公司
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