Method for synchronous acquisition and playback of vehicle-mounted video and bus data

A technology for data synchronization and on-board video, which is applied in the directions of carrier index/addressing/timing/synchronization, digital recording/reproduction, etc., and can solve the problems that the development and testing of the vehicle-vehicle interactive cooperative control system cannot be applied, and post-processing is not provided. , to achieve the effects of improving the efficiency of real vehicle testing, easy expansion, and reducing development costs

Active Publication Date: 2013-07-24
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
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Problems solved by technology

However, this method does not provide the information required for system development and testing and the method of post-processing the

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  • Method for synchronous acquisition and playback of vehicle-mounted video and bus data
  • Method for synchronous acquisition and playback of vehicle-mounted video and bus data
  • Method for synchronous acquisition and playback of vehicle-mounted video and bus data

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] see figure 2 , the camera 1 installed on the car 19 collects vehicle driving environment information, including information such as vehicles, pedestrians, lane lines, road conditions, etc., and transmits video data to the on-board computer 15 through the USB transmission line 14 for processing and display.

[0028] The radar 5 detection that is installed on this car 19 detects the obstacle information that is in the radar detection surface 21, as: detect the front car 20, then the longitudinal relative speed, the relative distance between the front car 20 and this car 19 can be detected by the radar 5 Such information is transmitted to the USBCAN interface card 16 through the CAN bus 17, and through the conversion of the signal transmission mode by the USBCAN interface card 16, the signal is finally transmitted to the vehicle-mounted computer 15 through the USB...

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Abstract

The invention discloses a method for synchronous acquisition, storage and playback of vehicle-mounted video and bus data. The method is used for development and tests of a vehicle-road cooperative system. The method can be used for synchronous acquisition of information of driving states of a tested vehicle in various working conditions and information of road transportation environments. Starting conditions for triggering data acquisition can be set by a testing person. After a test, recorded data can be led in and played back synchronously, and a test scene can reappear. The recorded data can be used for controlling development and debugging of an algorithm and a hardware in-loop test of a controller so as to ensure conformity and repeatability of the test scene, reduce workload of an actual vehicle test, shorten a developing cycle, and save developing cost.

Description

technical field [0001] The invention belongs to the technical field of vehicle signal collection, and in particular relates to a method for synchronously collecting, storing and replaying vehicle-mounted video and vehicle-mounted bus data. Background technique [0002] In recent years, vehicle-road\vehicle-vehicle interactive cooperative control technology has become a research hotspot in the field of international automobile safety, such as forward collision warning system and adaptive cruise control system. These systems perceive vehicle driving status and environmental information through sensors such as on-board cameras and radars. Based on this information, the controller judges the status of the vehicle and makes corresponding control strategies to ensure driving safety and reduce the labor intensity of the driver. During the development and testing of key technologies of the vehicle-vehicle interactive collaborative control system, in order to avoid potential hazards ...

Claims

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Application Information

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IPC IPC(8): G11B27/10G11B20/10
Inventor 张盼韩慧娟黎予生张强陈达兴李楠
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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