Embedded industrial wireless WIA-PA gateway based on EPA

An industrial wireless and gateway technology, applied in the direction of electrical components, transmission systems, etc., can solve the problem that industrial wireless equipment cannot be directly connected to industrial Ethernet, so as to improve transmission efficiency and real-time response, avoid blind forwarding, and reduce energy The effect of consumption

Active Publication Date: 2009-11-18
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0006] Since WIA-PA and EPA are two different protocol standards, devices that follow the industrial wireless WIA-PA communication protocol cannot directly access the EPA control network, and must go through the gateway for protocol conversion, and the existing communication protocol conversion equipment still has There is no gateway that converts the WIA-PA wireless communication protocol to the EPA protocol, so that industrial wireless devices cannot be directly connected to industrial Ethernet

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  • Embedded industrial wireless WIA-PA gateway based on EPA
  • Embedded industrial wireless WIA-PA gateway based on EPA
  • Embedded industrial wireless WIA-PA gateway based on EPA

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Embodiment Construction

[0016] The solution of the present invention will be further specifically analyzed and described below in conjunction with the accompanying drawings and specific embodiments.

[0017] like figure 1 Shown is the block diagram of the principle structure of the industrial wireless WIA-PA gateway of the present invention, mainly including: EPA protocol processor, industrial wireless WIA-PA protocol processor, Ethernet controller, Ethernet interface, power conversion module, RAM memory, Flash Memory and JTAG debugger interface, etc. The protocol conversion part is connected between the EPA protocol processor and the industrial wireless WIA-PA protocol processor through an asynchronous serial port (UART) or a parallel port. The industrial wireless WIA-PA protocol processor has built-in radio frequency circuit and WIA-PA protocol stack. The radio frequency circuit captures the data frame conforming to the IEEE 802.15.4 protocol, and the frame length information field and the MAC la...

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Abstract

The invention relates to an industrial wireless embedded gateway used for realizing protocol conversion between an industrial wireless protocol WIA-PA and an EPA protocol. The gateway adopts a dual-core mode (comprising an EPA protocol processor and a WIA-PA protocol processor), wherein the EPA protocol processor is mainly used for completing the encapsulation and resolution of the EPA protocol, and the WIA-PA protocol processor is in charge of completing the encapsulation and resolution of the WIA-PA protocol; and communication, data transmission, and protocol conversion between the WIA-PA protocol and an Ethernet bus protocol-the EPA protocol are realized between the two processors by a protocol conversion interface module through a serial port or a parallel port, thereby leading WIA-PA equipment to be accessed to an EPA industrial control network successfully, mapping the WIA-PA equipment to EPA equipment by service enactment to the WIA-PA protocol stack, and further leading the gateway to carry out configuration on the WIA-PA equipment indistinguishably. The industrial wireless embedded gateway can be applied to industrial on-site control networks.

Description

technical field [0001] The invention relates to the field of industrial wireless communication, in particular to the access technology of industrial Ethernet. technical background [0002] A gateway is a communication device with a special application process, which provides special functions and upper-layer interfaces for objects of one (or more) protocols. Its main function is to enable mutual conversion and normal communication between different communication protocols. It can be adapted to the needs of the destination system by repackaging the information so that one protocol can read the information by another system. [0003] "EPA (Ethernet for plant automation for industrial field-oriented Ethernet) system structure and communication standard for industrial measurement and control systems" (referred to as "EPA standard") is an information network communication system based on Ethernet, wireless LAN, Bluetooth, etc. It is an industrial control network communication s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 王平王泉陈绪辉刘哲王进贤柏颖古振王晓伟
Owner CHONGQING UNIV OF POSTS & TELECOMM
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