Vehicle-mounted terminal system and synchronous data acquisition method and device

A vehicle-mounted terminal and data technology, applied in time-division multiplexing systems, electrical components, multiplexing communications, etc., can solve problems such as data cannot be used directly, inconsistent working frequency, etc., and achieve strong consistency and synchronization high effect

Active Publication Date: 2019-06-18
MOMENTA SUZHOU TECH CO LTD
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Problems solved by technology

Since all kinds of sensors work independently, the working frequency is also inconsistent, which makes the data collected by each sensor unable to be used directly

Method used

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  • Vehicle-mounted terminal system and synchronous data acquisition method and device
  • Vehicle-mounted terminal system and synchronous data acquisition method and device
  • Vehicle-mounted terminal system and synchronous data acquisition method and device

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] It should be noted that the terms "include" and "have" and any variations thereof in the embodiments of the present invention and the drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally further includes For other steps or units inher...

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Abstract

The embodiment of the invention discloses a vehicle-mounted terminal system and a synchronous data acquisition method and device. In the system, an image sensor, a positioning sensor and a radar sensor acquire data according to associated moments; The first processor, the second processor and the third processor are used for respectively acquiring data acquired by a sensor connected with the firstprocessor, the second processor and the third processor, respectively determining timestamps of the acquired data, and respectively sending the acquired data and the corresponding timestamps to the main controller; The method comprises the following steps of: acquiring data by each sensor according to mutually associated moments; wherein the main controller or the second processor, using the first processor and the third processor as to-be-time-service equipment, and adjusting the system time of the to-be-time-service equipment according to the interaction information with the time service equipment on the basis of a precision time protocol (PTP), so that the clock of the to-be-time-service equipment is synchronous with the clock of the time service equipment; and enabling the main controller or the second processor to determine whether the main controller or the second processor is time service equipment according to a preset signal of the positioning sensor. By applying the scheme provided by the embodiment of the invention, the data with higher time synchronization precision of each sensor can be obtained.

Description

technical field [0001] The present invention relates to the technical field of automatic driving, in particular to a vehicle-mounted terminal system and a synchronization data acquisition method and device. Background technique [0002] In the automatic driving / assisted driving system, the solution of multi-sensor fusion has become one of the mainstream technical solutions. The data collected by each sensor required by the automatic driving / assisted driving system must be based on the same time base, and the data of each sensor must be collected synchronously. Since all kinds of sensors work independently, the working frequency is inconsistent, which makes the data collected by each sensor unable to be used directly. Therefore, there is a need for a way to acquire data with higher temporal synchronization accuracy collected by various sensors of different types. Contents of the invention [0003] The invention provides a vehicle-mounted terminal system, a method and a de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
Inventor 余振华
Owner MOMENTA SUZHOU TECH CO LTD
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