Method and system for data synchronization of vehicle sensor in automatic driving

An automatic driving and data synchronization technology, applied in the field of Internet of Vehicles, can solve the problems of increasing the complexity of multi-sensor data fusion, the inability to improve the sensor response sensitivity, and the inability of high-frequency sensors to be fully utilized.

Active Publication Date: 2016-06-15
WUHAN KOTEI TECH CORP
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Problems solved by technology

The frequency of each sensor is different, and the internal clock is also different. The current practice is to process the latest data to ensure real-time performance. In this way, the system frequency will depend on the low-frequency sensor, and the high-frequency sensor cannot be fully utilized, which cannot improve the performance of automatic driving. The response sens

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  • Method and system for data synchronization of vehicle sensor in automatic driving
  • Method and system for data synchronization of vehicle sensor in automatic driving
  • Method and system for data synchronization of vehicle sensor in automatic driving

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[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the invention.

[0026] Such as figure 1 As shown, the embodiment of the present invention provides a data synchronization method for vehicle sensors in automatic driving, and the data synchronization method for vehicle sensors in automatic driving includes the following steps:

[0027] S1. Determine whether the time difference between multiple high-frequency sensors sensing the environmental information and sending the high-frequency acquisition information to the central processing unit is within the high-frequency synchronization threshold;

[0028] Wherein, said step S1 includes step S1a and step ...

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Abstract

The invention provides a method and system for data synchronization of a vehicle sensor in automatic driving. In order to timely and rapidly perform identification and judgment of environmental factors in automatic driving, high-frequency signals obtained by a high-frequency sensor is preferentially calculated, a time difference of data transmission of high- and low-frequency sensors is calculated, synchronous matching judgment is performed on the high-frequency signals and low-frequency signals, a calculation result of the high-frequency signals is verified through the low-frequency signals, and a controller sends out an execution instruction, thereby shortening analysis time of a central processing unit, improving reaction sensitivity of the sensors in automatic driving and data fusion performance of multiple sensors, and through setting of multilevel judgment, errors brought by abnormal time data are reduced, and a capability of filtering wrong data is increased.

Description

technical field [0001] The invention relates to the technical field of Internet of Vehicles, in particular to a data synchronization method and system for vehicle sensors in automatic driving. Background technique [0002] At present, the automatic driving system includes multiple sensors, such as radar, camera, map, positioning sensor and so on. The frequency of each sensor is different, and the internal clock is also different. The current practice is to process the latest data to ensure real-time performance. In this way, the system frequency will depend on the low-frequency sensor, and the high-frequency sensor cannot be fully utilized, which cannot improve the performance of automatic driving. The response sensitivity of the sensor makes it impossible to identify and judge environmental factors in time and quickly during automatic driving, and it also brings safety hazards to high-speed automatic driving. At the same time, there may be unknown problems between the sens...

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Application Information

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IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 苏晓聪李华朱敦尧
Owner WUHAN KOTEI TECH CORP
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