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

A communication module and congestion control technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as limited performance, inapplicability, and sensor network congestion, so as to increase robustness and improve forwarding efficiency , the effect of increasing the number

CN102595487BActive Publication Date: 2015-07-15CHONGQING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-07-15

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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.
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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 ...

Examples

Embodiment Construction

[0023] Below in conjunction with accompanying drawing and embodiment example, the present invention will be further described:

[0024] Such as figure 1 Shown is the principle structure diagram of the sensor network gateway. The present invention adds a communication module in the gateway, and adds a communication module logically connected to the main controller inside the gateway, and is managed and communicated by the main controller of the gateway. The main controller of the gateway assigns a 16-bit network communication short address of the sensor network to each communication module, and each communication module is grouped according to the address of each network-entry routing device. The main controller of the gateway monitors the working status of the communication module in real time. If it detects that a communication module is congested, it will command the routing node managed by the congested communication module to leave the current parent node through the m...