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Vehicle-mounted positioning data processing device and method

A technology for positioning data and processing methods, which is applied in structured data retrieval, geographic information databases, etc., and can solve problems such as difficult integration of vehicle-mounted terminal communication pressure positioning data and sensor data

Inactive Publication Date: 2019-01-11
WUHAN ZHONGHAITING DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention at least provide a method for processing vehicle positioning data, which can solve the problems in the prior art that the real-time storage and transmission of vehicle positioning data cause the communication pressure of vehicle terminals and the difficulty of fusion of positioning data and sensor data.

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  • Vehicle-mounted positioning data processing device and method

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Embodiment Construction

[0042] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ...

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Abstract

The invention discloses a vehicle-mounted positioning data processing device and method. The method includes acquiring all discrete positioning data in a preset time, wherein the positioning data includes longitude coordinate x, latitude coordinate y and time stamp t; fitting a first polynomial equation x=f (t) according to the longitude coordinate x and the timestamp t curve, and fitting a secondpolynomial equation y=h (t) according to the latitude coordinate y and the timestamp t curve; storing a range of values of the first polynomial equation x=f (t) and the second polynomial equation y=h(t) and a timestamp t. The invention can trace the space-time track of a vehicle in a spatial coordinate system, reduce the data quantity of real-time storage and transmission, and reduce the data fusion requirement of positioning data and other perceptual data.

Description

Technical field [0001] The invention relates to the technical field of high-precision maps, in particular to a vehicle positioning data processing device, method and device based on three-dimensional space curve fitting. Background technique [0002] To make a high-precision map, you need to record the position information of the vehicle GPS including longitude, latitude and time stamp and upload it to the remote server in real time. High-precision vehicle GPS will generate a discrete location information every 10ms or 100ms and store and transmit it. [0003] In the prior art, the act of storing and transmitting a large amount of location information acquired within a period of time will cause bandwidth pressure on the communication network of the vehicle terminal; at the same time, the location information is generally discrete data, when the location information is combined with the sensing data of other sensors. When merging, there will be a problem that the two timestamps are...

Claims

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Application Information

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IPC IPC(8): G06F16/29
Inventor 石涤文
Owner WUHAN ZHONGHAITING DATA TECH CO LTD
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