Method and device for filtering out abnormal GPS data

A technology of GPS data and filtering method, applied in the field of GPS positioning, can solve the problem of insufficient intelligence in parking lot management, and achieve the effect of accurate abnormal speed threshold and accurate filtering

Active Publication Date: 2017-07-21
SHENZHEN AUTONET CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The present invention provides a method and device for filtering abnormal GPS data, the main purpose of which is to solve the technical problem that the management of the parking lot is not intelligent enough

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  • Method and device for filtering out abnormal GPS data
  • Method and device for filtering out abnormal GPS data

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Embodiment Construction

[0051] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The invention provides a filtering method and device for abnormal GPS data.

[0053] refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the abnormal GPS data filtering method and device of the present invention.

[0054] This embodiment proposes a filtering method and device for abnormal GPS data, and the filtering method and device for abnormal GPS data include steps:

[0055] Step S10, acquiring GPS data uploaded within a preset time interval;

[0056] The preset time interval can be set by the user, and the preset time interval can be a certain journey of the vehicle, that is, the time period from when the vehicle starts to run to when the vehicle stops running; or the preset time interval is a preset period of time such as one hour or one day. The GPS data may include loc...

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Abstract

The invention discloses a method and device for filtering out abnormal GPS data. The method includes the following steps that: GPS data uploaded in a preset time interval are acquired; the average traveling speed of a distance between adjacent GPS data is calculated according to position information in the GPS data and uploading time; the quantile of the upper-side preset percentage of the probability distribution of the average traveling speed is obtained, and the quantile is adopted as an abnormal speed threshold value; and abnormal average traveling speed in the average traveling speed, which is greater than the abnormal speed threshold value, is obtained, and GPS data corresponding to the abnormal average traveling speed is marked as abnormal GPS data. The invention also discloses a device for filtering out abnormal GPS data. According to the method and device of the present invention, the abnormal speed threshold value in a current time interval which is determined according to conditions in the preset time interval is more accurate; and the filtering out of the abnormal GPS data is more accurate since the abnormal speed threshold value is accurate.

Description

technical field [0001] The invention relates to the technical field of GPS positioning, in particular to a method and device for filtering abnormal GPS data. Background technique [0002] When the vehicle-mounted GPS device uploads the GPS track data of the vehicle, due to the instability of the device itself and the complex situation of the environment, it often occurs that the latitude and longitude data reported by the GPS drift seriously, resulting in abnormal data, and abnormal data It will cause difficulties in subsequent data analysis (such as vehicle travel calculation, attribution and resident analysis, etc.), and will also reduce the accuracy of data analysis. Therefore, how to effectively filter abnormal data of GPS trajectory data is very important. [0003] At present, abnormal GPS data filtering is mainly based on whether the distance and speed between adjacent GPS data obviously exceed the abnormal value to determine abnormal GPS data. GPS data, resulting in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37
CPCG01S19/37
Inventor 卢玉帅高勇高静
Owner SHENZHEN AUTONET CO LTD
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