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Method for uploading positioning data of vehicles

A vehicle positioning and positioning data technology, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve problems such as misjudgment, monitoring system data confusion, and GPS equipment data drift

Active Publication Date: 2011-07-20
XIAMEN YAXON NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the GPS device fails to locate or the GPS data is abnormal when the vehicle-mounted terminal uploads the positioning data, even if the correct GPS data has been obtained within the upload time interval, these correct GPS data will not work; Uploading incorrect or false positioning data
When the vehicle is stationary, the data drift of the GPS device will also cause the illusion that the vehicle is in motion
As a result, the data confusion and misjudgment of the monitoring system

Method used

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  • Method for uploading positioning data of vehicles
  • Method for uploading positioning data of vehicles
  • Method for uploading positioning data of vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The vehicle-mounted terminal based on GPS and GPRS / GSM uploads the vehicle location information collected by its own GPS device to the monitoring center of the system every 1 second according to the data transmission time interval specified by the system (2 minutes). The vehicle-mounted terminal adopts the first embodiment of the inventive method to carry out data processing operations: collect an effective GPS data as historical positioning data; collect GPS data after waiting for a collection interval, if the GPS positioning is successful, then check the state of the vehicle, if the vehicle If the state is in motion, the distance between the current GPS data point and the historical positioning data point is used as the numerator, and the collection interval count between the current GPS data point and the historical positioning data point is used as the denominator to calculate the vehicle’s distance at each collection interval. Average displacement M; when the averag...

Embodiment 2

[0070] The vehicle-mounted terminal based on GPS and GPRS / GSM uploads the vehicle location information collected by its own GPS device to the monitoring center of the system every 1 second according to the data transmission time interval specified by the system (1 minute). The vehicle-mounted terminal adopts the second embodiment of the inventive method to carry out data processing operations: collect an effective GPS data as historical positioning data; wait for a collection interval to collect GPS data, if the GPS positioning is successful, then check the status of the vehicle, if the vehicle If the state is in motion, the distance between the current GPS data point and the historical positioning data point is used as the numerator, and the collection interval count between the current GPS data point and the historical positioning data point is used as the denominator to calculate the vehicle’s distance at each collection interval. Average displacement M; when the average dis...

Embodiment 3

[0084] The vehicle-mounted terminal based on GPS and GPRS / GSM uploads the vehicle location information collected by its own GPS device to the monitoring center of the system every 1 second according to the data transmission time interval specified by the system (1.5 minutes). The vehicle-mounted terminal adopts the third embodiment of the inventive method to carry out the data processing operation: collect an effective GPS data as the historical positioning data; collect the GPS data after waiting for a collection interval, if the GPS positioning is successful, then check the state of the vehicle, considering When the vehicle is in the ON state of ACC, the vehicle does not move or moves at a very slow speed below the critical value, such a static state of the vehicle, and the transformation process from the stationary state to the motion state; use the stop count and driving count to record the above motion state transition In the middle process, use the state flag to record th...

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Abstract

The invention relates to a method for uploading the positioning data of vehicles, which comprises the following steps of: acquiring effective global position system (GPS) data as historical positioning data; after waiting for one acquisition interval, acquiring the GPS data, detecting the state of the vehicles if GPS positioning succeeds, and if the vehicles are in the motion state, calculating the average displacement M of the vehicles at each acquisition interval by taking distance between the current GPS data point and a historical positioning data point as a numerator and the acquisition interval between the current GPS data point and the historical positioning data point as a denominator; when the average displacement M is more than the upper limit of the displacement, discarding thecurrent GPS data, and otherwise, taking the current GPS data as the historical positioning data; if the vehicles are in the static state, discarding the current GPS data; and repeating the process ofacquiring the GPS data until the uploading time, and uploading the historical positioning data serving as the current positioning data to a monitoring center. By the method, the problem of poor data reliability during the uploading of the position information, acquired directly in real time within the uploading time, of the vehicles is solved.

Description

technical field [0001] The invention relates to a method for processing vehicle position information by a vehicle-mounted terminal based on GPS and GPRS / GSM. Background technique [0002] At present, the vehicle monitoring system widely used in China usually adopts vehicle-mounted terminals based on GPS and GPRS / GSM. In this vehicle monitoring system, the vehicle terminal regularly uploads the vehicle location information collected by its own GPS device to the monitoring center of the system at regular intervals according to the data transmission time interval specified by the system, realizing the all-weather monitoring of the vehicle by the monitoring center. The GPS device of the vehicle terminal can usually complete the collection of vehicle location information (hereinafter referred to as GPS data) within a few milliseconds, while the monitoring center usually only needs to receive the positioning data of a vehicle at an upload time interval of tens of seconds or even m...

Claims

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Application Information

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IPC IPC(8): G01S19/14
Inventor 黄运峰李基勇赖荣东陈永波陈挺
Owner XIAMEN YAXON NETWORKS CO LTD
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