Cluster type OTA upgrading method and system

Abstract

The invention relates to a cluster type OTA upgrading method, which is applied between an OTA gateway and N terminals, each terminal communicates with the OTA gateway through a wireless channel, and the wireless channel is divided into an upgrading channel and a scheduling channel; dividing each working period of the OTA gateway into a competitive access period and a non-competitive access period;in the competitive access period, the OTA gateway works in a scheduling channel and broadcasts firmware information; in the non-competitive access period, the OTA gateway works in an upgrading channel to perform an upgrading packet issuing process; each terminal accesses the OTA gateway according to the firmware information broadcasted by the OTA gateway, and requests to allocate the communication time slot in the non-competitive access period; and the terminal requests to issue an upgrade package in the allocated communication time slot and executes an upgrade process. By adopting the upgrading method, the upgrading packet issuing efficiency is improved, the upgrading packet backup speed of all terminals is increased, the defects of small communication bandwidth and low speed of IOT equipment are overcome, meanwhile, the overall upgrading time of batch terminals is shortened, and the upgrading efficiency is improved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a clustered OTA upgrade method and system. Background technique [0002] IOT (Internet of Things, Internet of Things) is the current industry application hotspot, and it is also the technical development direction of device interconnection. Due to the rapid replacement and iteration of electronic equipment, the market is changing rapidly, so it is required to quickly develop equipment and quickly update and replace new functions. In order to solve the system update, function iteration and vulnerability repair of the device software after the device leaves the factory, OTA (Over-the-Air Technology) related technologies have been developed. [0003] The full name of OTA is over the air, also known as online upgrade. OTA upgrade is to download and back up the latest firmware of the device from the server to the external Flash in the application system, and then update the firmw...

AI Technical Summary

Problems solved by technology

The incremental package upgrade method reduces the actual transfer size of the firmware and improves the upgrade speed. However, as far as the device is concerned, it is also one-to-one connected to the server for upgrade. The larger the number, the greater the system transmission burden and the longer the entire system upgrade time. long

[0004] In the prior art, incremental or compressed firmware package OTA upgrades require devices to connect to gateways or servers one-to-one. After requesting data, one-to-one upgrades are performed. For low-speed communication devices such as Zigbee and Bluetooth, it takes a long time

With a large number of devices, each device is actually upgraded in a serial manner. The more devices there are, the longer it will take to upgrade all devices, and the heavier the system burden will be.

Especially in places where centralized device management is required, it takes a long time to perform an OTA for all devices and the maintenance cost is high

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