A method and device for remote upgrading

Abstract

The embodiments of the present invention relate to the field of software upgrades, and in particular to a remote upgrade method and device thereof. Including: sending a transmission request; receiving sub-packets and extracting data blocks and flag data; checking whether the data block contains the end-of-file mark; among them: if it is included, all the extracted data blocks are sequentially combined into one data packet; if Does not contain, then judge whether the length information of all data blocks is consistent with the length information of the standard data packet according to the length information of all data blocks that have been extracted; Wherein: if no, then continue to receive the remaining sub-data packets; if yes, then Send the next transmission request, and combine all the extracted data blocks into one data packet in sequence; after receiving all the data packets, upgrade the local unit. The embodiment of the present invention effectively solves the data packet sub-packet phenomenon in the data transmission process, avoids incomplete data reception or wrong reception sequence, and improves download efficiency.

Description

technical field [0001] The invention relates to the field of software upgrading, in particular to a remote upgrading method and device thereof. Background technique [0002] The characteristic of embedded devices is that the CPU relies on the firmware program to work, and the firmware program is generally stored on some rewritable firmware carriers, the most common one is FLASH. If the firmware program stored in the FLASH of the terminal device is changed through network transmission, the device can be upgraded remotely. But now many embedded devices have wireless communication function, using existing public network resources, such as CDMA, GPRS network, can carry out data transmission and command interaction with the server. A common practice is to equip the device with a wireless communication module, through which the wireless communication module can communicate with the server through the network. [0003] However, in the prior art, when such a wireless communication...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for remote upgrading, which are used to solve the problem that the data packets received by the module will be divided into packets due to network congestion and other reasons when the wireless communication module in the prior art performs network communication, which is easy Packet loss causes the data in the data packet to be received incompletely or in the wrong order, and there is no need to increase the complexity of the programming of the server and terminal equipment

Images