Voice chip OTA upgrading method

Abstract

A voice chip OTA upgrading method comprises the following steps that 1, software used for upgrading is packaged into firmware, and the firmware is composed of a plurality of firmware blocks; step 2, the server sends an OTA upgrade instruction to the wireless transmission module, and the wireless transmission module confirms that the upgrade instruction is received and then performs soft reset on the voice chip, so that the working state of the voice chip is switched to start to run a chip bootstrap program; 3, serial port communication is established, OTA upgrading agent information is transmitted, verification is passed after transmission is completed, and serial port communication is established between the wireless transmission module and an upgrading agent program of the voice chip; and step 4, carrying out partition upgrading, and updating the configuration information of the server side into the voice chip. According to the method, the memory space of the voice chip equipment occupied by the starting program is reduced in a mode of transmitting the OTA upgrading agent; the updated firmware block can be accurately downloaded, and bandwidth waste and invalid transmission in whole package downloading are avoided.

Description

technical field [0001] The invention belongs to the technical field of voice, and in particular relates to a voice chip OTA upgrade method. Background technique [0002] Artificial OTA (full name in English: Over the Air Technology) is an over-the-air download technology. Refers to downloading the upgrade package through the network (for example: WIFI, Bluetooth, 2G / 3G / 4G / 5G, etc.) to update the software. In order to reduce maintenance costs and provide more complete functions. The current mainstream OTA upgrade methods are divided into: block upgrade and differential package upgrade. [0003] The existing OTA upgrade technology has the following problems: [0004] 1. The OTA server only manages firmware and versions, and does not have the function of comparing the feature information of each device. For example, for a product with a voice AI chip (voice air conditioner), if you need to optimize the recognition of the voice command "turn on the air conditioner", the diale...

AI Technical Summary

Problems solved by technology

[0004] 1. The OTA server only manages the firmware and version, and does not have the function of comparing the feature information of each device. For example, for a certain voice AI chip product (voice air conditioner), if it is necessary to optimize the recognition of the voice command "turn on the air conditioner", the dialect recognition Updating into the existing firmware, according to the previous method, it is necessary to distinguish between Sichuan dialect and Cantonese dialect, which requires a lot of manpower to confirm the device information and match the corresponding firmware

[0005] 2. The current general OTA upgrade method adopts overall and differential package upgrade

For terminal AI chips, it will increase the cost

[0006] 3. The firmware is not divided into blocks, so if there is an error writing FLASH, the firmware in the backup area needs to be reloaded

[0007] 4. Failure to back up selectively according to needs. The current traditional method is to fully back up all FLASH, resulting in low utilization of FLASH. For example, if the full backup method is used for 16M FLASH, the actual available area may only be 8M

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