Data collection transmission reliable guarantee method in wireless sensor network

Abstract

The invention discloses a method for guaranteeing the reliability of data collection transmission in a wireless sensor network, which comprises: adopting a high reliable network organizing method on the basis of dynamic working period adjustment by each sensor node in a sensor network and adopting a high reliable data transmission method on the basis of 2 phase retransmission between sensor nodes and between convergent nodes in the sensor network. On the aspect of network organization reliability guarantee, working modes of the sensor nodes are divided into two modes of normal work and network repair, intermittent working of the nodes under the two modes can be guaranteed through the dynamic working period adjustment, thereby guaranteeing the node lower power consumption characteristics and rapid network repair ability simultaneously. On the aspect of data transmission reliability guarantee, the high reliable data transmission method on the basis of 2 phase retransmission is adopted to guarantee the data integrity when data transmission errors and even chain interruption appear, and the influence of the data transmission errors on the data real time performance is lowered to the minimum.

Description

technical field [0001] The invention relates to the problem of wireless sensor network data transmission, in particular to a method for ensuring the reliability of data collection and transmission in the wireless sensor network. Background technique [0002] At present, wireless sensor networks are more and more widely used in data acquisition applications due to their advantages such as low power consumption and convenient deployment. In many data acquisition applications, such as environmental monitoring and building structure monitoring, there are high requirements for data reliability, including real-time and integrity. [0003] Due to the unreliability of wireless communication, problems such as data transmission errors and link interruptions seriously affect the reliability of data acquisition and transmission in wireless sensor networks. However, there are no relevant patents aimed at ensuring the reliability of data acquisition and transmission in wireless sensor ne...

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Problems solved by technology

However, this method has the problem of high power consumption

In terms of reliable data transmission, literature [5] F.Stann and J.Heidemann.RMST: reliable data transport in sensor networks.In IEEE Internet Workshop on Sensor Network Protocols and Applications (SNPA 2003), May 2003. and literature [6]C.Y. Wan, A.T.Campbell, and L.Krishnamurthy.PSFQ: a reliabletransport protocol for wireless sensor networks.In International Workshop onWireless Sensor Networks and Applications(WSNA 2002), September 2002. Described a data transmission reliability guarantee method based on hop-by-hop retransmission , however, these methods do not consider the data integrity guarantee problem when the link is interrupted

Literature [7] B.Deb, S.Bhatnagar and B.Nath.ReInForM: Reliable Information Forwarding Using Multiple Paths in Sensor Networks.In 28th Annual IEEE International Conference on LocalComputer Networks (LCN 2003), October 2003. Using multiple transmissions, literature [8] .B.Akan, I.F.Akyildiz.Event-to-Sink ReliableTransport in Wireless SensorNetworks.In IEEE / ACM TRANSACTIONS ON NETWORKING,Vol.13,No.5,October 2005.Report rate adjustment is adopted to improve the probability of successful data transmission,these method does not guarantee complete data transfer

Literature [9] R.Patra, S.Nedevschi.DTNLite: AReliable DataTransfer Architecture for Sensor Networks.Technical report, CSBerkeley, 2003. proposes a method of custody transmission to ensure data integrity when the link is interrupted, but the This method does not consider both real-time and complete data reliability requirements

To ensure data integrity, it is required to store a large amount of data, and simply using EEPROM or Flash cannot meet the needs of fast writing and large-capacity storage at the same time

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