Device and method used for controlling sensor network gateway congestion and based on multiple communication modules

Abstract

The invention provides a device and a method used for controlling sensor network gateway congestion and based on multiple communication modules, and particularly relates to gateway increase communication modules. A gateway main controller can be communicated with each module rapidly, and receive and process data received by a plurality of modules. When the gateway main controller finds that one communication module is congested, normal modules are utilized at once to perform multicast of leaving command frames to route nodes under the congested module, multicast of route discovery command frames is performed so as to inform the route nodes under the congested module to build an optimal temporary path to enable the route nodes under the congested module to change routes for forwarding data, and the congested communication module is avoided. For avoiding that congestion conditions are vibrated back and forth between the communication modules, the number of the nodes whose routes need to be changed is adjusted dynamically by arranging radius parameters of route discovery frames, and congestion status is eased rapidly and stably.

Description

technical field [0001] The invention relates to the technical field of industrial wireless network control, in particular to a device and method for designing multiple communication modules at a sensor network gateway to relieve massive data congestion in the gateway. Background technique [0002] In the wireless sensor network WSN (wireless sensor network), the wireless gateway based on IEEE802.15.4 and 802.3 is to build a data transmission channel between the wireless sensor network and the external network to realize the data interaction between them. The existing gateway mainly includes a wireless transceiver module (such as CC2430), a power supply module, a data processing module (such as ARM), a storage module and other structures. [0003] Existing gateways have some deficiencies in performance. For the communication module of the gateway, due to the deployment of a large number of network nodes and the many-to-one communication mode that eventually converges to one ...

AI Technical Summary

Problems solved by technology

Although it can solve the congestion problem on the nodes in the sensor network to a certain extent, it is completely based on rate control and its performance is limited.

For the congestion caused by burst data generated by nodes in a large range, in some application scenarios, such as alarm monitoring of major events, data reliability and accuracy are very important, and when speed reduction or packet loss is not allowed, this The method basically does not apply

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