Remote upgrade method and device

Abstract

An embodiment of the invention relates to the field of software upgrade, in particular to a remote upgrade method and device. The remote upgrade method comprises the steps of sending a transmission request; receiving a sub-data-package and extracting data blocks and mark data; checking whether the data blocks contain file end marks; if the data blocks contain the file end marks, combining all the extracted data blocks into one data package in order; if the data blocks do not contain the file end marks, judging whether length information of all the data blocks conforms to length information of a standard data package according to the length information of all the extracted data blocks; if the length information of all the data blocks does not conform to the length information of the standard data package, continuously receiving the rest of the sub-data-package; if the length information of all the data blocks conforms to the length information of the standard data package, sending the next transmission request and combining all the extracted data blocks into one data package in order; upgrading a local unit after all the data packages are received. By means of the remote upgrade method and device, scattering of the data packages during data transmission is prevented effectively, incompletion or out of sequence of the received data are avoided, and download efficiency is increased.

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

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