Data transmission method and device of terminal equipment with Androild platform

Abstract

The invention discloses a data transmission method and a device of terminal equipment with an Androild platform. The data transmission method and the device of the terminal equipment with the Androild platform are used to simultaneously achieve data transmission based on a file transmission protocol and a data transmission function based on a universal serial bus (USB) large-volume storage mode on the terminal equipment of the Androild platform, and the advantages of two data transmission modes are effectively played. The method includes that when the terminal equipment establishes connection for the data transmission with other equipment by a USB, the terminal equipment based on the file transmission protocol sends data in an inner storer of the terminal equipment to the other equipment, and receives data which is sent by the other equipment and writes in the inner storer. The terminal equipment sends data in an outer storer of the terminal equipment to the other equipment by a USB large-volume unified message service (UMS) mode, and receives data which is sent by the other equipment and writes in the outer storer by a UMS mode.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method and device using an Android platform terminal device. Background technique [0002] With the rapid development of smart terminal devices, terminal devices based on the Android platform (such as smart phones, tablet computers, etc.) are becoming more and more common. Android is an open source mobile phone operating system based on the Linux platform. The Android platform is composed of an operating system, middleware, user interface and application software. The bottom layer of the platform is based on the Linux kernel developed by C language, which only provides basic functions. The middle layer of the platform includes Function library and virtual machine, and the upper layer of the platform is various application software. [0003] At present, after a terminal device based on the Android platform is connected to a personal computer (Personal C...

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Problems solved by technology

[0005] Among them, for the data transmission and sharing scheme using MTP file transfer technology alone, the terminal device allocates the internal memory to the Android system as much as possible, but due to the limitations of MTP as a file transfer protocol itself, the connection between the PC and the terminal device is via USB The data transmission and sharing realized by the connection is limited to the transmission of files, and the PC cannot control the contents of the internal memory of the terminal device in real time, such as modifying files and other operations

[0006] As for the data transmission and sharing scheme using UMS mode alone, although both the internal memory in the terminal device and the external SD card memory use the UMS mode to share data with the PC, but when the terminal device establishes a USB connection with the PC, the internal memory Part of the storage space is used as a Fat partition, and this part of the partition cannot be used to run the upper-layer application of the terminal device at this time, which reduces the size of the standard Ext4 partition that the system can use in the internal memory of the terminal device to a certain extent

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