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Data transmission method and apparatus

A data transmission and data technology, applied in the information field, can solve the problems of USB connection interruption that cannot be restored in time, interruption, and data cannot be transmitted normally.

Inactive Publication Date: 2018-07-03
FAFA AUTOMOBILE (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the vehicle is driving in bumps, the USB connection between the smart terminal and the vehicle's central control system may be interrupted, resulting in the failure of normal data transmission
The inventors of the present application found in the process of realizing the present invention that the above-mentioned solution in the prior art has the defect that the interruption of the USB connection cannot be recovered in time, and thus the normal transmission of data cannot be guaranteed.

Method used

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  • Data transmission method and apparatus
  • Data transmission method and apparatus
  • Data transmission method and apparatus

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Embodiment Construction

[0021] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0022] figure 1 It is a flowchart of a data transmission method according to an embodiment of the present invention, which can be used in various devices such as vehicle central control system, personal computer PC, notebook computer, etc., such as figure 1 As shown, the method may include the following steps.

[0023] In step S110, a USB connection is established with the terminal device, and data is received from the terminal device.

[0024] For example, when the USB data cable is physically connected to the terminal device and the device using the method in this embodiment, ...

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Abstract

Embodiments of the present invention provide a data transmission method and apparatus, and belong to the technical field of information. The method comprises: establishing a universal data bus USB connection with a terminal device, and receiving data from the terminal device; collecting statistics of the number of consecutive failures of data reception; when the number of consecutive failures of data reception reaches or exceeds a preset threshold, determining whether there is the USB connection with the terminal device; and if there is no USB connection with the terminal device, re-establishing the USB connection with the terminal device. According to the embodiments of the present invention, the USB connection can be automatically detected, and when the USB connection is interrupted, theUSB connection is restored to ensure normal data transmission.

Description

technical field [0001] The present invention relates to the field of information technology, in particular, to a data transmission method and device. Background technique [0002] Data can be transferred between devices via USB (Universal Data Bus). For example, data can be transmitted between the smart terminal and the vehicle central control system through a USB data cable, for example, the screen image of the smart terminal is transmitted to the vehicle central control system for display through the USB data cable. Due to various reasons, the USB connection between devices may be interrupted. For example, when the vehicle is driving in bumps, the USB connection between the smart terminal and the vehicle's central control system may be interrupted, resulting in the failure of normal data transmission. In the process of implementing the present invention, the inventors of the present application found that the above-mentioned solution in the prior art has the defect that ...

Claims

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Application Information

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IPC IPC(8): G06F13/40
CPCG06F13/4068
Inventor 蒙启成刘玉林
Owner FAFA AUTOMOBILE (CHINA) CO LTD