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OPC UA sleep proxy method suitable for wireless on-site device

A field device and wireless technology, applied in the field of OPCUA dormant agent, can solve the problem of server network failure, data cannot be provided to the external network, etc., and achieve the effect of solving data inaccessibility

Active Publication Date: 2016-08-10
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to two problems. The first is that the data collected by the device as the server cannot be provided to the external network after it is dormant. The second is that the external client cannot find the dormant server, which may cause network failure.

Method used

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  • OPC UA sleep proxy method suitable for wireless on-site device
  • OPC UA sleep proxy method suitable for wireless on-site device
  • OPC UA sleep proxy method suitable for wireless on-site device

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be further described:

[0029] Such as figure 1 as shown, figure 1 It is the dormancy handshake message of the new design of the preferred embodiment of the present invention; the main content of the dormancy handshake message is: OPC UA general request header, cache size and SleepID, wherein the cache size is the cache space size that the dormant server needs the proxy server to provide, and SleepID is A 16-bit unsigned integer used to indicate the dormant proxy relationship.

[0030] figure 2 It is the dormancy confirmation message newly designed in the preferred embodiment of the present invention; the main content of the dormancy confirmation message is: OPC UA general response header and SleepID, wherein the state information of message confirmation is reflected in the general response header.

[0031] image 3 It is the dormancy registration message of the new design of the preferred e...

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PUM

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Abstract

The invention discloses an OPC UA sleep proxy method suitable for a wireless on-site device. The method enables the OPC UA protocol-based wireless on-site device to have a sleep proxy function, a life cycle of a network device can be effectively prolonged, and a problem that data cannot be read normally when the device sleeps can be solved. According to the method, based on OPC UA series protocol standards, a sleep proxy interactive mechanism is designed, and a sleep proxy service set is designed according to the mechanism, wherein the sleep proxy service set comprises sleep handshake service, sleep registration service, sleep update service, sleep notification service, sleep wakeup notification service and sleep confirmation service. Via use of the OPC UA sleep proxy method, when an OPC UA client end is not changed, the sleep proxy function is introduced in an OPC UA server, and sleep requirements of the wireless on-site device with energy constraints can be met.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to an OPC UA dormant agent method suitable for wireless field devices. Background technique [0002] An important idea of ​​the Industrial Internet of Things is to connect industrial systems and analyze data and perform related actions to improve performance and efficiency. The implementation of the Internet of Things requires changes in the organizational design and expansion of industrial systems, the most logical way is to integrate existing automation equipment through standard, secure communication protocols. OPC UA can not only exchange data, but also provide information modeling capabilities and a secure, platform-independent communication method. It provides a common technical and semantic operation layer for M2M communication, which is crucial to the realization of the Industrial Internet. . The OPC UA Unified Architecture provides industry wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04W52/02
CPCH04L67/14H04W52/0209H04L67/56Y02D30/70
Inventor 王平王恒蒲宬亘
Owner CHONGQING UNIV OF POSTS & TELECOMM
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