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A WSN reprogramming method for mc1321x

A MC1321X, wireless sensor technology, applied in network topology, wireless communication, program control devices, etc., can solve platform-independent problems

Active Publication Date: 2017-06-16
南通江海港建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high amount of code update has always been the bottleneck of the wireless reprogramming technology in the actual large-scale application

Method used

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  • A WSN reprogramming method for mc1321x
  • A WSN reprogramming method for mc1321x
  • A WSN reprogramming method for mc1321x

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] 1. Hardware foundation:

[0032] Based on the analysis and research of MC1321X series wireless radio frequency chips based on S08 core architecture released by Freescale, the Bootloader firmware program for MC1321X chips is designed. In the WSN_OTAR wireless reprogramming method, the main function of the Bootloader is to receive the differentiated code after resetting, back up the current user program code and perform code reorganization, and finally perform anomaly detection to determine whether to jump to the updated user program area. In order to utilize the limited on-chip resource of MC1321X, this method divides the FLASH space on MC1321X chip effectively and reasonably at first. According to the analysis of the storage space of MC1321X, the Bootloader is placed at the end of the Flash, before the interrupt vector table, its address is 0xC000-0xF...

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PUM

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Abstract

The present invention proposes an overhead wireless reprogramming method WSN_OTAR for MC1321X. This method performs incremental code iterative update on the basis of comparing the differences between the old and new MCU machine codes in WSN wireless nodes, thereby effectively reducing the transmission amount of updated codes in WSN and improving the correctness and accuracy of wireless reprogramming. reliability. This method does not depend on a specific hardware platform, but mainly relies on software implementation, and has the characteristics of low overhead, high reliability, low latency and low storage.

Description

technical field [0001] The invention belongs to the field of WSN (wireless sensor network, wireless sensor network), and specifically relates to a method for reprogramming a wireless sensor network WSN oriented to MC1321X. Background technique [0002] Wireless reprogramming technology has become a hot spot in WSN research. At present, there has been some research on remote code update at home and abroad. The existing code distribution protocols mainly include Deluge, MOAP, and Elon. [0003] Deluge is a multi-hop code distribution protocol proposed earlier, and it has become a standard code update protocol for the embedded operating system TinyOS. The protocol relies on the TinyOS system, and the image file of the entire TinyOS needs to be updated when updating the code of the target node. Therefore, the transmission load to the nodes in the wireless network is relatively large. [0004] MOAP is to update the code of some selected nodes in WSN, instead of flooding to all...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/44H04W84/18
Inventor 王宜怀胡宗棠凌云
Owner 南通江海港建设工程有限公司