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Apparatus and method for maintaining reliability of wireless network having asymmetric or other low quality wireless links

A technology of wireless network and wireless equipment, applied in the field of reliable equipment, can solve problems such as drop

Active Publication Date: 2014-12-24
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reliability of wireless networks, such as mesh networks, can be severely degraded in the presence of asymmetric links

Method used

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  • Apparatus and method for maintaining reliability of wireless network having asymmetric or other low quality wireless links
  • Apparatus and method for maintaining reliability of wireless network having asymmetric or other low quality wireless links
  • Apparatus and method for maintaining reliability of wireless network having asymmetric or other low quality wireless links

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Embodiment Construction

[0018] discussed below Figure 1 to Figure 7 , and the various embodiments used to describe the principles of the invention in this patent document are by way of illustration only and should not be construed as limiting the scope of the invention in any way. Those skilled in the art will understand that the principles of the invention may be implemented in any type of suitably arranged device or system.

[0019] figure 1 An exemplary industrial control and automation system 100 according to the present disclosure is shown. Such as figure 1 As shown, system 100 includes one or more processing elements 102 . Processing element 102 represents a component in a processing system that performs various functions. For example, processing element 102 may represent a sensor, actuator, or any other or additional industrial device in the processing environment. Each processing element 102 includes any suitable structure for performing one or more functions in a processing system. Ad...

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Abstract

The invention relates to an apparatus and method for maintaining reliability of a wireless network having asymmetric or other low quality wireless links. The method includes receiving (702-704) link quality information associated with multiple wireless connections in a wireless network. The method also includes identifying (706) at least one asymmetric communication path in the wireless network using the link quality information. The link quality information could include a statistical value for each of the wireless connections. Identifying the at least one asymmetric communication path could include identifying a first and a second of the statistical values associated with a first and a second of the wireless connections, respectively, and determining whether a difference between the first and second statistical values exceeds a threshold. The method could further include applying (708) a heuristic to indicate that the first and second wireless connections do not form an asymmetric communication path even if the difference between the first and second statistical values exceeds the threshold.

Description

[0001] CROSS-REFERENCE AND PRIORITY TO RELATED APPLICATIONS [0002] This application claims priority under 35 U.S.C §119(e) to U.S. Provisional Patent Application No. 61 / 834015, filed June 12, 2013, the entire contents of which are hereby incorporated by reference. technical field [0003] The present disclosure generally relates to wireless communication systems. More specifically, the present disclosure relates to an apparatus and method for maintaining the reliability of a wireless network with asymmetric or otherwise low quality wireless links. Background technique [0004] Wireless networks are often used in industrial process control systems. For example, a process control system typically includes sensors that provide measurements over a wireless network, and actuators that receive control signals over a wireless network. A process controller may utilize measurements from the sensors to generate control signals for the actuators. [0005] When two nodes in a wirel...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04B17/00H04L1/00
CPCH04W24/04H04W40/12H04W40/246H04W84/18Y02D30/70H04W24/10H04W28/12H04W40/24
Inventor C·拉拉维P·萨穆德拉拉N·R·斯万森C·普利尼
Owner HONEYWELL INT INC
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