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Road gradient measurement method and computer readable storage medium

A measurement method and technology of road slope, which is applied in the directions of measuring devices, measuring inclination, surveying and navigation, etc., can solve the problems of slow update frequency of elevation and latitude and longitude, low numerical accuracy, and insufficient data accuracy, so as to ensure the overall accuracy of data Effect

Active Publication Date: 2020-05-12
XIAMEN YAXON NETWORKS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two sets of source data of elevation and latitude and longitude used in this method are not affected by the acceleration and deceleration of the vehicle, and are not affected by whether the sensor is installed horizontally. The elevation derived slope calculated by the two does not have the problem of calibrating the initial installation angle. There is no need to calibrate the initial installation angle of the sensor; however, due to the slow update frequency of the elevation and latitude and longitude, the elevation-derived slope is only the average slope between two GPS points, and the numerical accuracy is low. It is impossible to obtain the subtle road gradient in time during the fast driving of the vehicle. Change, that is, the update frequency is slow and the data accuracy is insufficient

Method used

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  • Road gradient measurement method and computer readable storage medium
  • Road gradient measurement method and computer readable storage medium
  • Road gradient measurement method and computer readable storage medium

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Experimental program
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Effect test

Embodiment 1

[0060] Please refer to Figure 2-6 , Embodiment one of the present invention is: a kind of method for measuring road slope, by installing a set of integrated navigation sensors on the experimental vehicle, driving the experimental vehicle through a road section with a slope, such as a bridge (assuming that the inclination instrument is statically The maximum slope of the bridge deck is measured to be 3 degrees), and the method of joint measurement of elevation-derived slope and pitch angle is used to detect the bridge deck slope in real time.

[0061] Specifically, such as figure 2 As shown, the method includes the following steps:

[0062] S1: According to the elevation information and latitude and longitude information output by the sensor, calculate the elevation-derived slope sequence. Specifically, the elevation information and latitude and longitude information are obtained from the output information of the integrated navigation sensor, and the elevation difference b...

Embodiment 2

[0076] This embodiment is a computer-readable storage medium corresponding to Embodiment 1, on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:

[0077] According to the elevation information and latitude and longitude information output by the sensor, the elevation-derived slope sequence is calculated;

[0078] According to the attitude angle information output by the sensor, analyze and obtain the pitch angle sequence;

[0079] Calculate and obtain an offset distance sequence according to the elevation-derived slope sequence and pitch angle sequence;

[0080] According to the pitch angle sequence and the offset distance sequence, a joint measurement slope sequence is obtained through calculation.

[0081] Further, according to the elevation information and latitude and longitude information output by the sensor, the calculated elevation-derived slope sequence is specifically:

[0082] Calculate the el...

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Abstract

The invention discloses a road gradient measurement method and a computer readable storage medium. The method comprises the steps: carrying out the calculation according to the elevation information and longitude and latitude information outputted by a sensor, and obtaining an elevation derivative gradient sequence; analyzing to obtain a pitch angle sequence according to the attitude angle information output by the sensor; calculating to obtain an offset distance sequence according to the elevation derivative slope sequence and the pitch angle sequence; According to the pitch angle sequence and the offset distance sequence, calculating to obtain a combined measurement slope sequence. According to the invention, the initial installation angle of the sensor does not need to be calibrated, and the road gradient can be accurately and effectively measured.

Description

technical field [0001] The invention relates to the technical field of slope measurement, in particular to a road slope measurement method and a computer-readable storage medium. Background technique [0002] With the rapid development of cities and the increasing number of cars, energy saving and emission reduction has become the theme of transportation development. As a common road form, ramps are scattered in the traffic network, which has a great impact on the fuel consumption of vehicles during driving. The demand for establishing a real-time monitoring road slope model is becoming more and more urgent. [0003] In the actual project application scenario, it is required to install a set of integrated navigation sensors on the vehicle to measure the road slope in real time. The output of the sensor contains information such as attitude angle, latitude and longitude, and elevation. There are currently two ways to obtain the road slope from it: [0004] Mode 1, directly ...

Claims

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Application Information

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IPC IPC(8): G01C9/00
CPCG01C9/00
Inventor 曾奉尧涂岩恺周贺杰季刚
Owner XIAMEN YAXON NETWORKS CO LTD