Wireless sensor network based on dynamic routing mechanism, and topology control method for wireless sensor network

A wireless sensor and topology control technology, applied in network topology, wireless communication, data exchange network, etc., can solve the problems of shortened network lifetime, signal conflict, energy waste, etc., to reduce algorithm overhead, reduce power consumption, improve The effect of accuracy

Inactive Publication Date: 2016-09-28
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

In practical applications, all sensor nodes communicate with the maximum transmission power. Although the connectivity of the network topology is gua

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  • Wireless sensor network based on dynamic routing mechanism, and topology control method for wireless sensor network
  • Wireless sensor network based on dynamic routing mechanism, and topology control method for wireless sensor network
  • Wireless sensor network based on dynamic routing mechanism, and topology control method for wireless sensor network

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Embodiment Construction

[0027] A specific embodiment of the wireless sensor network based on the dynamic routing mechanism in the present invention. The system mainly consists of three parts: sensor nodes, aggregation nodes (gateway) and host computer software. The schematic diagram of the system structure is as Figure 5 As shown, the sensor node wakes up periodically, collects environmental data and uploads it to the sink node through a 2.4GHz wireless signal. The sensor node has the functions of data collection, data transmission, and routing forwarding; The received information of each node is uploaded to the local PC and the remote data center, and the aggregation node is used for data aggregation of sensor nodes, as the parent node of all sensor nodes, and also has the function of issuing network commands; the host computer software is used to process the aggregation node The data information so that the observer can monitor the network data in real time; the upper computer software of the loc...

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Abstract

The invention provides a wireless sensor network based on a dynamic routing mechanism, and a topology control method for the wireless sensor network. The wireless sensor network consists of a sensor node, a convergence node, and upper computer software. The method mainly comprises three steps: firstly building network topology through the dynamic routing mechanism; secondly carrying out estimation according to RSSI and LQI indexes, and then adjusting the emission power of the sensor node; and finally carrying out the maintenance of the structure of the network topology, thereby guaranteeing the connectivity and reliability of the network. The method based on power control can reduce the interference among signals, improves the stability of the network, and prolongs the life cycle of the network.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and relates to a wireless sensor network based on a dynamic routing mechanism and a topology control method thereof. Background technique [0002] The wireless sensor network is composed of a large number of cheap micro-sensor nodes deployed in the monitoring area, forming a multi-hop self-organizing network system through wireless communication, which can monitor, perceive and collect various environmental information in the network distribution area in real time through collaboration , and process this information to obtain detailed and accurate information. The application prospect of wireless sensor network is very broad, and it can be widely used in the fields of national defense and military affairs, environmental monitoring, medical and health care, traffic management and space exploration. Network topology control refers to eliminating unnecessary wireless communication ...

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Application Information

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IPC IPC(8): H04W40/24H04W40/28H04W52/24H04L12/755H04W84/18
CPCH04W40/248H04L45/021H04W40/28H04W52/241H04W52/245H04W84/18
Inventor 王亚聪赵柏秦
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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