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Enhanced modbus communication method based on mpeg-2

An MPEG-2, communication method technology, applied in the field of communication protocols, to achieve the effect of improving the error detection rate and reducing the bit error rate

Active Publication Date: 2020-02-18
山东乐通达物联网科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides an enhanced MODBUS communication method based on MPEG-2, which provides the basis for formulating data communication process standards for the development of the Internet of Things industry, solves the problem of large data volume transmission, standardization and flexibility coexist, and improves data transmission The error detection rate, greatly reducing the bit error rate

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment, further elaborate the present invention. In the following detailed description, certain exemplary embodiments of the invention are described by way of illustration only. Needless to say, those skilled in the art would realize that the described embodiments can be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0025] Such as figure 2 and image 3 As shown, an enhanced MODBUS communication method based on MPEG-2, the transmission frame format includes the ADU application data unit, the ADU application data unit includes the address field, the PDU protocol data unit and the error checking part in turn, and the PDU protocol data unit includes in turn In the function code and data field, the coding format of the PDU protocol da...

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Abstract

The invention discloses an enhanced type MODBUS communication protocol based on MPEG-2. A transmission frame format comprises an ADU application data unit, the ADU application data unit orderly comprises an address domain, a PDU protocol data unit and an error check part; the PDU protocol data unit orderly comprises a functional code and a data domain, and the encoding format design is performed on the PDU protocol data unit; the encoding format design is a DSM-CC section format using the MPEG-2 standard to introduce into the data domain. The enhanced type MODBUS communication protocol provides the base for formulating the data communication process standard for the development of the internet of Things industry, the large data volume transmission problem is solved, the standard and the flexibility are coexistent, the error relevance ratio in the data transmission is improved, and the bit error rate is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of communication protocols, in particular to an enhanced MODBUS communication method based on MPEG-2. Background technique [0002] The MODBUS protocol is the world's first bus protocol that is really used in the industrial field. Since its inception, it has been widely used in the field of industrial control at home and abroad. With the continuous development of computer information technology and network technology, MODBUS protocol has become a general industry standard language and protocol. Through this protocol, controllers produced by different manufacturers can communicate with each other, controllers and other devices via a network (such as Ethernet), and connect to form an industrial network for centralized monitoring. [0003] In order to better popularize and promote the distributed application of MODBUS on Ethernet, Schneider has transferred the ownership of the MODBUS protocol to the IDA (Inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08G05B19/418
CPCG05B19/4186H04L69/329Y02P90/02
Inventor 许哲
Owner 山东乐通达物联网科技有限公司
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