Efficient remote update method for wireless sensor network node software

Abstract

The invention relates to an efficient remote updating method for node software of a wireless sensor network, belongs to the field of embedded remote updating of node software of wireless sensor networks and particularly relates to a remote updating method applicable to Flash type single-chip microcomputer software. The method comprises dividing a micro-programmed control unit (MCU) program storage into an updating bootstrap program storage area and a plurality of application program storage areas, and burning updating bootstrap programs and original application programs in a node read-only memory (ROM) before nodes leave factories; and inquiring node working states and application program version information and starting addresses when application programs of nodes required to be updated, and performing determining to select forced updating modes or normal updating modes to update node software. According to the efficient remote updating method, any changes in node hardware are not required, dismounting and mounting of nodes are not required, local downloaders are not required, and node software can be updated remotely through a software mode. The whole updating process is little in consumed time and high in efficiency, confidentiality and reliability, and the method is high in practicality and universality.

Description

technical field [0001] The invention belongs to the field of remote updating of embedded node software of a wireless sensor network, and in particular relates to a remote updating of software suitable for Flash-type single-chip microcomputers. Background technique [0002] Wireless sensor network is a wireless communication network composed of a large number of sensor nodes deployed in the monitoring area through self-organization and multi-hop. Wireless sensor networks do not require cumbersome wiring, are convenient and flexible to use, and can realize functions such as monitoring and safety early warning of key indicators in major equipment, transportation, and dangerous areas that are difficult to monitor manually, and have broad application prospects. [0003] The nodes in the wireless sensor network can realize real-time monitoring of the physical information of the monitoring object, and complete functions such as data collection, processing, and communication, and ar...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low reliability and low update efficiency in the current remote update, the present invention invents an efficient remote update method for wireless sensor network node software. The method is based on the original equipment of the wireless sensor network node and does not require a local downloader. Realize efficient and high-reliability update of wireless sensor network node software through software

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