CN103822641B

CN103822641B - A kind of vehicle mileage statistical method

Info

Publication number: CN103822641B
Application number: CN201210467630.0A
Authority: CN
Inventors: 刘燚华; 陈茹涛; 杨峰; 林志强
Original assignee: Xiamen Yaxon Networks Co Ltd
Current assignee: Xiamen Yaxon Networks Co Ltd
Priority date: 2012-11-19
Filing date: 2012-11-19
Publication date: 2016-06-15
Anticipated expiration: 2032-11-19
Also published as: CN103822641A

Abstract

The present invention provides a kind of vehicle mileage statistical method, the velocity information obtained is positioned by GPS, the state judging that vehicle is actual is analyzed by this velocity information, it is divided into transport condition and resting state, ACC igniting, starting travel and stop travelling these of short duration processes and be all classified as resting state, and undertaken filtering process by the vehicle speed pulse collected in resting state, and the vehicle speed pulse of the transport condition that only adds up, obtain effective total kilometrage pulse, finally obtained the mileage of vehicle by this effective total kilometrage pulse conversion. The inventive method is by GPS location technology and both modes combination gathering speed sensor pulse, both reduce simple vehicle speed sensor pulse and carry out in mileage statistic processes the complexity to disturbing pulse Filtering Processing, it also avoid the simple complicated mileage statistical method relying on GPS location technology to carry out, improve the accuracy of mileage statistics simultaneously.

Description

A kind of vehicle mileage statistical method

Technical field

The method that the present invention relates to a kind of vehicle mileage statistics.

Background technology

Vehicle maintenance and newness degree are often using distance travelled as judgement, and the statistics of VMT Vehicle-Miles of Travel is more and more important. Traditional mileage statistical method is speed sensor pulse in direct collecting vehicle, carry out statistics cumulative, it is converted into mileage value again through corresponding vehicle characteristics coefficient, mileage is calculated compared to the change being calculated traveling-position by GPS location technology, this method more can reflect the distance travelled number of reality really, and error is also less.

But vehicle is lighted a fire at ACC, starting travels, stop in the of short duration processes such as traveling, due to the transition work of electrical system in car, the output pulse of vehicle speed sensor is often mingled with many burrs, and some burrs have bigger time width and voltage amplitude, the pulse detection collecting unit of mileage statistic device will seal in these a number of disturbing pulses, if the circuit filtering of pulse collection filter element processes bad, these disturbing pulses also can be added up by the processing unit of rear end as effective vehicle speed pulse, thus the result of mileage pulse statistics is caused large effect, produce bigger deviation.

Summary of the invention

The technical problem to be solved in the present invention, is in that to provide a kind of vehicle mileage statistical method, is undertaken filtering process by the vehicle speed pulse collected in vehicle stationary state, be not added in whole mileage pulse, so that vehicle mileage pulse statistical result is more accurate.

The present invention is achieved in that a kind of vehicle mileage statistical method, the velocity information obtained is positioned by GPS, the state judging that vehicle is actual is analyzed by this velocity information, it is divided into transport condition and resting state, ACC igniting, starting travel and stop travelling these of short duration processes and be all classified as resting state, and undertaken filtering process by the vehicle speed pulse collected in resting state, and the vehicle speed pulse of the transport condition that only adds up, obtain effective total kilometrage pulse, finally obtained the mileage of vehicle by this effective total kilometrage pulse conversion.

Further, described analysis by this velocity information judges that the actual state of vehicle comprises the concrete steps that: per second take 1 velocity amplitude from GPS locating module, if the speed of forward and backward time point T and T+1 per second is VT and VT+1, judge whether VT and VT+1 is all higher than the threshold speed set, if, then judge that vehicle is in transport condition, if it is not, then judge that vehicle remains static.

Further, described threshold speed is 1m/s.

Present invention have the advantage that the inventive method is by GPS location technology and both modes combination gathering speed sensor pulse, both reduce simple vehicle speed sensor pulse and carry out in mileage statistic processes the complexity to disturbing pulse Filtering Processing, it also avoid the simple complicated mileage statistical method relying on GPS location technology to carry out, improve the accuracy of mileage statistics simultaneously.

Accompanying drawing explanation

The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the system principle diagram realizing the inventive method.

Fig. 2 is the broad flow diagram of the inventive method.

Detailed description of the invention

The vehicle mileage statistical method of the present invention, original by, on the basis of speed sensor pulse in collecting vehicle, adding GPS locating module. As it is shown in figure 1, the device that realizes of the inventive method mainly includes pulse detection collecting unit, GPS locating module, data process memory element.

Described pulse detection collecting unit: for the pulse of vehicle speed sensor output is acquired, is converted to data and processes the input pulse of the voltage amplitude that memory element allows;

Described GPS locating module: be used for receiving gps signal and processing, export corresponding gps data. Itself and data are processed memory element and are communicated by UART mouth;

Described data process memory element: for being analyzed gps data and input pulse processing, statistical computation distance travelled.

As shown in Figure 2, based on said apparatus, the inventive method positions the velocity information obtained by GPS, the state judging that vehicle is actual is analyzed by this velocity information, it is divided into transport condition and resting state, ACC igniting, starting travel and stop travelling these of short duration processes and be all classified as resting state, and undertaken filtering process by the vehicle speed pulse collected in resting state, and the vehicle speed pulse of the transport condition that only adds up, obtain effective total kilometrage pulse, finally obtained the mileage of vehicle by this effective total kilometrage pulse conversion.

Described analysis by this velocity information judges that the actual state of vehicle comprises the concrete steps that: per second take 1 velocity amplitude from GPS locating module, if the speed of forward and backward time point T and T+1 per second is VT and VT+1, judge whether VT and VT+1 is all higher than the threshold speed set, if, then judge that vehicle is in transport condition, the vehicle speed pulse collected is added in total kilometrage pulse, if not, then judge that vehicle remains static, undertaken filtering process by the vehicle speed pulse collected, then carry out the process of next 1 second. Wherein, it is advantageous to, described threshold speed may be configured as 1m/s.

In sum, the inventive method is by GPS location technology and both modes combination gathering speed sensor pulse, both reduce simple vehicle speed sensor pulse and carry out in mileage statistic processes the complexity to disturbing pulse Filtering Processing, it also avoid the simple complicated mileage statistical method relying on GPS location technology to carry out, improve the accuracy of mileage statistics simultaneously.

Although the foregoing describing the specific embodiment of the present invention; but those familiar with the art is to be understood that; we are merely exemplary described specific embodiment; rather than for the restriction to the scope of the present invention; those of ordinary skill in the art, in the equivalent modification made according to the spirit of the present invention and change, should be encompassed in the scope of the claimed protection of the present invention.

Claims

1. a vehicle mileage statistical method, it is characterised in that:

Realize device and mainly include pulse detection collecting unit, GPS locating module, data process memory element;

Described GPS locating module: be used for receiving gps signal and processing, export corresponding gps data;

Described data process memory element: for being analyzed gps data and input pulse processing, statistical computation distance travelled; Specifically include following steps:

The velocity information obtained is positioned by GPS, the state judging that vehicle is actual is analyzed by this velocity information, it is divided into transport condition and resting state, ACC igniting, starting travel and stop travelling these of short duration processes and be all classified as resting state, and undertaken filtering process by the vehicle speed pulse collected in resting state, and the vehicle speed pulse of the transport condition that only adds up, obtain effective total kilometrage pulse, finally obtained the mileage of vehicle by this effective total kilometrage pulse conversion;

Described analysis by this velocity information judges that the actual state of vehicle comprises the concrete steps that: per second take 1 velocity amplitude from GPS locating module, if the speed of forward and backward time point T and T+1 per second is VT and VT+1, judge whether VT and VT+1 is all higher than the threshold speed set, if, then judge that vehicle is in transport condition, if it is not, then judge that vehicle remains static.

2. a kind of vehicle mileage statistical method according to claim 1, it is characterised in that: described threshold speed is 1m/s.