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Vehicle-mounted multi-sensor data synchronous acquisition method and system

A data synchronization, multi-sensor technology, applied in the field of sensors, can solve the problem of asynchrony of vehicle multi-sensor data, and achieve the effect of improving the accuracy of synchronization acquisition

Pending Publication Date: 2022-02-01
DONGFENG MOTOR GRP
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  • Description
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Problems solved by technology

[0003] The present invention solves the technical problem that the vehicle-mounted multi-sensor data collected in the prior art is out of sync by providing a method and system for synchronous acquisition of vehicle-mounted multi-sensor data

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  • Vehicle-mounted multi-sensor data synchronous acquisition method and system
  • Vehicle-mounted multi-sensor data synchronous acquisition method and system

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Embodiment Construction

[0043] Embodiments of the present invention solve the technical problem of out-of-synchronization of vehicle-mounted multi-sensor data collected in the prior art by providing a method and system for synchronously collecting vehicle-mounted multi-sensor data.

[0044] In order to better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] First of all, the term "and / or" that appears in this article is just an association relationship that describes associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: there is A alone, and A exists at the same time and B, there are three cases of B alone. In addition, the character " / " in this article generally indicates that the contextual objects are an "or" relationship.

[0046] Such as figure 1 As shown, the vehic...

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Abstract

The invention discloses a vehicle-mounted multi-sensor data synchronous acquisition method and system, and relates to the technical field of sensors. The method comprises the following steps: comparing time deviation of data sampling time of each sensor and continuously iterating to obtain an optimal time difference; synchronizing the time sequence of the sensor data according to the optimal time difference. Therefore, the problem that data of various sensors cannot be kept synchronous due to different acquisition frequencies and sampling time among different sensors is solved, and the synchronous acquisition precision of the sensors is preliminarily improved.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a method and system for synchronously collecting vehicle-mounted multi-sensor data. Background technique [0002] A variety of sensors (such as cameras, millimeter-wave radars, lidars, etc.) have become an indispensable part of the environmental perception module of intelligent driving vehicles. Multi-sensor perception fusion has become an inevitable problem in this field. Synchronous acquisition of multi-sensor data is a decision. An important factor in the effect of data fusion, the synchronization quality of multi-sensor data acquisition also determines the reliability of multi-sensor data fusion. Since the data acquisition channels of these sensors are basically different, and their sampling frequencies are also different, this will lead to differences in the synchronization of acquisitions by various sensors, resulting in low reliability of data fusion. Contents of the inv...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/0638H04J3/0682
Inventor 冯昊文赵春华雷源胡明新杨诚
Owner DONGFENG MOTOR GRP
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