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Data playback method and device, vehicle and storage medium

A data playback and data technology, applied in the field of communication, can solve problems such as low efficiency and uncontrollable playback rate, and achieve the effect of large amount of data

Pending Publication Date: 2022-02-18
GUANGZHOU XIAOPENG CONNECTIVITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This playback method is inefficient and cannot control the playback rate

Method used

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  • Data playback method and device, vehicle and storage medium
  • Data playback method and device, vehicle and storage medium
  • Data playback method and device, vehicle and storage medium

Examples

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Embodiment Construction

[0041] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] Data playback refers to the playback of real-time stored data. According to the timing synchronization requirements of signal processing, the original data and timing are sent, and the actual working process on the terminal is played back in real time. The timing relationship of the original data must be consistent with that of recording. At present, the data playback is applied to the vehicle to observe the actual working process of the vehicle so as to improve the vehicle. The current playback method for DDS data in the data distribution service is to rewrite the DDS data into the memory by calling the DDS corresponding interface, and then reacquire the DDS data from the memory according to the interrupt duration of the ti...

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PUM

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Abstract

The embodiment of the invention provides a data playback method and device, a vehicle and a storage medium, and the method comprises the steps: reading various types of data distribution service data inquired on the vehicle, and obtaining structured data, wherein the structured data at least comprises a theme and a corresponding original timestamp; determining a reference timestamp based on the original timestamp; determining the data of which the theme does not exceed the reference timestamp as playback data; and carrying out playback on the playback data. According to the embodiment of the invention, data playback is carried out by directly reading multiple types of data distribution service data queried on the vehicle, and the data distribution service data does not need to be rewritten into a memory, so that the data playback efficiency is improved; and the reference timestamp is determined through the original timestamp so that the rate of data playback can be adjusted.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data playback method, a data playback device, a vehicle and a storage medium. Background technique [0002] DDS (Data Distribute Service, Data Distribution Service) is a data-centric middleware protocol and API (Application Programming Interface, Application Programming Interface) standard issued by the Object Management Group. DDS can provide low-latency data connections, high reliability, and a highly scalable architecture to suit the needs of commercial-grade IoT applications. [0003] In related technologies, the running information of the application program can be queried by replaying the data of the DDS, and the running state of the application program can be reviewed during the design of the application program to improve the application program. At present, the playback method for DDS data generally calls the corresponding system interface to rewrite the DDS dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F16/248
CPCG06F16/2477G06F16/2474G06F16/248
Inventor 钟辉强赖健明唐勇
Owner GUANGZHOU XIAOPENG CONNECTIVITY TECH CO LTD