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A road surface detection method based on mobile phone sensor data

A road surface detection and sensor technology, which is applied to equipment with sensors, roads, roads, etc., can solve the problems of different measurement accuracy and single measurement method, and achieve convenient road maintenance, strong real-time data, and low cost. Effect

Active Publication Date: 2021-08-03
CENNAVI TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The above schemes are used for real-time measurement when driving in various situations. The measurement method is relatively simple, and the accuracy of the measurement is different under different weather conditions.

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  • A road surface detection method based on mobile phone sensor data
  • A road surface detection method based on mobile phone sensor data
  • A road surface detection method based on mobile phone sensor data

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Embodiment Construction

[0030] In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] figure 1 Among them, trajectory data: a series of GPS data generated during the mobile phone's movement; speed data: a series of driving speeds obtained by the mobile phone while the user is driving; acceleration data: a series of driving accelerations obtained by the mobile phone while the user is driving.

[0032] The technical problem to be solved by...

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Abstract

The present invention relates to the technical field of road surface detection, in particular to a road surface detection method based on mobile phone sensor data, comprising the following steps: obtaining object motion data; fusion processing object motion data; obtaining acceleration data sets: including three directions of the mobile phone coordinate system The linear acceleration performs coordinate transformation in the coordinate system of the vehicle, and combines the vehicle’s driving speed to obtain acceleration data sets in three directions in the vehicle’s driving coordinate system; calculate the comfort value: according to the vertical acceleration in the vehicle’s driving coordinate system and the user’s Calculate the flat integer index from the GPS trajectory data to obtain the comfort value. The technical solution of the present application can accurately estimate the damage condition of the road surface in real time and at low cost.

Description

technical field [0001] The invention relates to the technical field of road surface detection, in particular to mobile phone sensor data processing, road surface detection, big data analysis and processing, and in detail to a road surface detection method based on mobile phone sensor data. Background technique [0002] With the rapid development of my country's economy and the acceleration of the pace of modernization, automobiles are becoming more and more popular and have become an indispensable means of transportation for people. However, due to the rapid increase in the number of cars and the lack of timely maintenance of the roads, a large number of seriously damaged roads have been produced. These damaged roads have a serious impact on driving safety, driving comfort and the vehicle itself. How to obtain real-time and accurate damage to the road surface, especially those dangerous potholes that endanger driving safety, is crucial to the driving safety of drivers and t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01H04M1/72403
CPCE01C23/01H04M2250/12H04M1/72403
Inventor 胡健温宇浩袁思骏顾益林杨永霞
Owner CENNAVI TECH