CN102538817A - Mileage statistic method based on GPS (global positioning system) - Google Patents

Mileage statistic method based on GPS (global positioning system) Download PDF

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Publication number
CN102538817A
CN102538817A CN2010106069568A CN201010606956A CN102538817A CN 102538817 A CN102538817 A CN 102538817A CN 2010106069568 A CN2010106069568 A CN 2010106069568A CN 201010606956 A CN201010606956 A CN 201010606956A CN 102538817 A CN102538817 A CN 102538817A
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China
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equipment
speed
mileage
threshold
translational speed
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CN2010106069568A
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宗良
严超
王洪波
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WUHAN PANDA TECHNOLOGY CO LTD
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WUHAN PANDA TECHNOLOGY CO LTD
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Priority to CN2010106069568A priority Critical patent/CN102538817A/en
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Abstract

The invention discloses a mileage statistic method based on a GPS (global positioning system). The mileage statistic method is used for acquiring information of moving speed of equipment in every second and calculating moving mileage of the equipment every second, wherein the mileage statistic method comprises the following steps: a, confirming whether the equipment is under a moving state or a static state; b, accumulating the travelled distance of the equipment under a motion state; and c, and making mileage compensation to the displacement generated when the equipment is under a static state. By continuously and repeatedly judging the moving speed of the equipment and conforming the moving state of the equipment, mileage accumulated errors caused by the phenomenon of position shift since the GPS obtains coordinate when the equipment is under the static state can be effectively avoided. Compared with the 10 percent of mileage statistic errors in the prior art, the method disclosed by the invention has the advantages that people can obtain more accurate mileage statistic information, and the errors are reduced to about 5 percent.

Description

A kind of mileage statistical method based on GPS
Technical field
The present invention relates to software technology field, especially mileage statistical method particularly, relates to a kind of mileage statistical method based on GPS.
Background technology
The birth of GPS (GPS) has brought greatly variation for our daily traffic life; Owing to can obtain the coordinate position of equipment by this technology; Can make us carry out some statistical works easily, such as the information such as mileage statistics of equipment moving displacement.
At present, using GPS statistics fare register,, may cause the drift of a certain fixed position because GPS's self is inaccurate.Especially when equipment was in low speed or stationary state, GPS was the center of circle with the physical location, the position stochastic distribution.And the way of statistics mileage commonly used is that the instantaneous velocity that the GPS per second reports multiply by the mileage that Time Calculation goes out a second, and the mileage of p.s. adds up and draws total kilometrage.Like this, when equipment is in when static, because the drift of position, all can have the speed that reports p.s., though can cause static mileage still slowly adding up like this.
For this situation, the employed method of many businessmans is: the speed that is provided with is filtered thresholding, mileage accumulation when avoiding static.Particularly, when speed is lower than a certain thresholding, do not accumulate this instant mileage, have only speed to be higher than just accumulated distance of this thresholding.Still there is following shortcoming in this method: because a statistics starting velocity thresholding just simply is set; If it is too high to filter threshold setting; The slow running mileage that then is lower than this thresholding can't be accumulated; If it is too low to filter threshold setting, then can't reach the purpose that speed is filtered, the statistical method of such single solution for diverse problems can cause bigger about error of about 10%.
Therefore, provide a kind of and can judge accurately and add up with mileage compensation that the method that can effectively reduce the mileage statistical error just seems particularly important the equipment moving state according to judged result.
Summary of the invention
The purpose of this invention is to provide a kind of can the minimizing because the method for the gps system location mileage statistical error that drift caused.
To defective of the prior art, the present invention provides a kind of mileage statistical method based on GPS, wherein, comprising:
A. confirm first threshold speed and second speed threshold value, said first threshold speed is less than said second speed threshold value;
Whether the translational speed of b. judging the equipment that is positioned is less than said first threshold speed or be higher than said second speed threshold value, wherein:
If the said equipment of being positioned is in mobile status, and translational speed is less than said first threshold speed, the translational speed that then continues to judge the said equipment that is positioned in a period of time whether all less than said first threshold speed; If judged result confirms then that for being the said equipment of being positioned remains static, if judged result confirms then that for not the said equipment that is positioned still is in mobile status,
If the said equipment of being positioned remains static; And translational speed is higher than said second speed threshold value, then continues to judge whether the translational speed of the said equipment that is positioned all is higher than said second speed threshold value in a period of time, if judged result is for being; Confirm that then the said equipment of being positioned is in mobile status; If judged result confirms then that for not the said equipment that is positioned still remains static
C. add up the displacement that the said equipment of being positioned is confirmed as when being in mobile status to be produced, as the distance travelled statistics;
The displacement that is produced when d. the equipment of being positioned described in the step b being confirmed as stationary state is calculated, as the distance travelled statistics addition that obtains among mileage compensation and the step c.
Above-mentioned statistical method, wherein, said step a also comprises the steps:
A1. per second obtains once the current translational speed of the said equipment that is positioned.
Above-mentioned statistical method, wherein, said step b also comprises the steps:
B'. if the said equipment of being positioned remains static, and translational speed is between first threshold speed and the second speed threshold value, then need not obtain current translational speed.
Above-mentioned statistical method, wherein, a period of time among the said step b was at least 5 seconds.
Above-mentioned statistical method, wherein, the said translational speed that is decided to be equipment is obtained through GPS module.
Above-mentioned statistical method, wherein, the bulk billing system of step c is with the addition of said equipment per second displacement, wherein, said equipment per second displacement is said equipment current second of speed and the product of time.
Above-mentioned statistical method wherein, comprises the steps: in the steps d
Residing primary importance when d1. recording unit is confirmed as stationary state;
D2. recording unit is determined the residing second place when the stationary state described in the step c1 transfers motion state to;
D3. with the mileage statistics by way of compensation of the air line distance between the primary importance and the second place.
Can solve the problem of fixed position drift preferably through said method; The displacement that is taken place in the time of remaining static to equipment simultaneously compensates calculating; Avoid the situation of unexpected acceleration in the equipment operation or deceleration is suddenly made erroneous judgement, thereby reduced statistical error greatly.
Description of drawings
Through reading the detailed description of non-limiting example being done with reference to following accompanying drawing, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates according to the first embodiment of the present invention, a kind of schematic flow sheet of the mileage statistical method based on GPS;
Fig. 2 illustrates according to a second embodiment of the present invention, and whether a kind of mileage statistical method based on GPS gets into the schematic flow sheet that stationary state is judged to equipment;
Fig. 3 illustrates a third embodiment in accordance with the invention, and whether a kind of mileage statistical method based on GPS gets into the schematic flow sheet that motion state is judged to equipment; And
Fig. 4 illustrates a fourth embodiment in accordance with the invention, a kind of equipment moving view of the mileage statistical method based on GPS.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further elaborated.Embodiment described herein only is used to explain the present invention, and is not used in qualification protection scope of the present invention.
Fig. 1 illustrates according to the first embodiment of the present invention, a kind of schematic flow sheet of the mileage statistical method based on GPS.Particularly, comprise step S210, confirm that equipment is in mobile status or stationary state; Step S211, the distance travelled when accumulative total equipment is in mobile status; And step S212, the mileage compensation is carried out in the displacement of the generation when equipment is remained static.
Further, at first, execution in step S210 confirms whether equipment state changes.It will be apparent to those skilled in the art that; Position location satellite more than 3 just can be located equipment more exactly; In one embodiment, for example to carry out the mileage statistics, can make satellite obtain the real-time position information of automobile exactly through a GPS module that is installed on the automobile to the mobile distance of an automobile; Computing terminal adopts a communication module to obtain the real-time position information of said automobile, thereby confirms the automobile current movement speed.When equipment is in mobile status, be lower than certain value for translational speed, like 3KM/H, if all less than 3KM/H, then be judged to be stationary state continuous 5 seconds; When equipment remains static, be higher than certain value for translational speed, like 5KM/H,, then be judged to be mobile status if all be higher than 5KM/H continuous 5 seconds.
Then, execution in step S211, the distance travelled when accumulative total equipment is in mobile status.The distance that is moved in the automobile unit interval section is added up stack, and the displaced plate of several single-point bit time section automobiles is spliced, and for example, the GPS per second obtains once the velocity information of said automobile, and then mileage is the summation of equipment per second displacement.
At last, execution in step S212, the mileage compensation is carried out in the displacement of the generation when equipment is remained static.It will be apparent to those skilled in the art that; The displacement that said equipment is taken place when static is because the displacement that equipment is carried out when not reaching mobile status; This part displacement is not accumulated in the equipment mobile status distance, and the reality that the feasible mileage of having done according to GPS is added up less than equipment moves mileage.Therefore, the displacement that is taken place in the time of also should said equipment being judged as stationary state is calculated in the mileage statistics.
Fig. 2 illustrates according to a second embodiment of the present invention, and whether a kind of mileage statistical method based on GPS gets into the schematic flow sheet that stationary state is judged to equipment.In the present embodiment, the translational speed of equipment is slack-off gradually, and whether the equipment that just can judge in GPS exactly to be positioned through step shown in Figure 2 is by moving into stationary state.
At first, execution in step S220 obtains the current translational speed of said equipment.The position real-time change of said equipment in the GPS positioning system, the displacement through per second is used as total distance, and be the present speed that calculates said equipment consuming time second unit interval.Like this, just can obtain the average velocity of equipment per second, help carrying out more accurately mileage statistics.
Execution in step S221 then, whether the translational speed of judgment device is less than first threshold.Said first threshold can adopt different values according to real needs, in one embodiment, and according to the bearing accuracy of present GPS equipment; Because equipment is when or state that low speed move static relative to ground; During the GPS location, may measure said equipment random drift on a fixed position, when this situation takes place; The location that the GPS positioning system is carried out is that the physical location with equipment is the center of circle, the position stochastic distribution.Therefore; This drift for fear of the statistics equipment of mistake; Need a first threshold higher than fixed position drift velocity, still, because said fixed position drift velocity generally has certain randomness; Therefore the first threshold of said speed need be higher than most random velocity values, and said first threshold is got 3KM/H can guarantee to filter the higher random velocity of minority preferably.Further, in step S221, carry out the comparison size of current translational speed of equipment and 3KM/H value, it will be appreciated by those skilled in the art that the comparison of two velocity amplitudes size can be through writing IF ... Judge Deng statement, do not repeat them here.
Then, according to the judged result of step S221, if said equipment current movement speed is not less than said first threshold, execution in step S223 confirms that said equipment is in mobile status.Wherein, when execution in step S223,, be in mobile status,, confirm that still it is in mobile status so do not change judgement to said equipment because the equipment present speed is very fast.
If according to the judged result of step S221 be said equipment current movement speed less than said first threshold, then proceed once to judge execution in step S222; Judge whether to exist the execution result of N continuous time step S221 to be " being "; Wherein, N step S221 of said continuous execution is in order to guarantee that said equipment exists the real-time speed of continuous a period of time to be lower than said first threshold, to prevent said equipment unexpected reduction of speed occurred and judges the generation into stationary state by accident; In order to guarantee that said equipment is to get into stationary state really after process in accordance with the present invention S221 carries out judgement; Said N value 5 times, per second is carried out and was once carried out altogether 5 seconds, and those skilled in the art can also get other different values; The execution result that for example judges whether continuous 7 step S221 is " being "; Cause the statistical time lag for fear of judgement of a specified duration excessively, the value of said times N should be not excessive, to be as the criterion less than 10 less than the N value.
After having carried out step S222; If judged result is for denying; Explain that then said equipment is lower than not enough N of the speed duration second of said first threshold continuously; Be not sure of said equipment and get into stationary state, return execution in step S221, whether the translational speed of next second that continues to judge said equipment is less than first threshold.If the judged result of step S222 is for being that then execution in step S224 confirms that said equipment remains static.Wherein, to get into the judgement time point of stationary state be continuous the 5th speed of said equipment time point when being lower than said first threshold for said equipment.
Fig. 3 illustrates a third embodiment in accordance with the invention, and whether a kind of mileage statistical method based on GPS gets into the schematic flow sheet that mobile status is judged to equipment.In the present embodiment, the translational speed of equipment accelerates gradually, and whether the equipment that just can judge in GPS exactly to be positioned through step shown in Figure 3 is by static entering mobile status.
At first, execution in step S220 obtains the current translational speed of said equipment.Said step is described in detail in the aforementioned embodiment, does not repeat them here.
After having obtained the current translational speed of the equipment of stating, execution in step S231, whether the translational speed of judgment device is greater than second threshold value.Said second threshold value can adopt different values according to real needs, and in conjunction with embodiment shown in Figure 2, said second threshold value should be bigger than said first threshold; Preferably, getting 5KM/H is second threshold value, further; In step S220, carry out the comparison size of current translational speed of equipment and 5KM/H value, it will be apparent to those skilled in the art that; The comparison of two velocity amplitudes size can be through writing IF ... Judge Deng statement, do not repeat them here.
Then, according to the judged result of step S231, if said equipment current movement speed is not more than said second threshold value, execution in step S233 confirms that said equipment remains static.Wherein, when execution in step S233,, be not sure of,, confirm that still it remains static so do not change judgement to said equipment to getting into mobile status because the equipment present speed is slower.
If according to the judged result of step S231 be said equipment current movement speed greater than said second threshold value, then proceed once to judge execution in step S232; Judge whether to exist the execution result of N continuous time step S231 to be " being "; Wherein, N step S231 of said continuous execution is in order to guarantee that said equipment exists the real-time speed of continuous a period of time to be higher than said second threshold value, to prevent that to said equipment appearance speed-raising suddenly and erroneous judgement be the generation of entering mobile status; In order to guarantee that said equipment is to get into mobile status really after process in accordance with the present invention S231 carries out judgement; Said N value 5 times, per second is carried out and was once carried out altogether 5 seconds, and those skilled in the art can also get other different values; The execution result that for example judges whether continuous 7 step S231 is " being "; Cause the statistical time lag for fear of judgement of a specified duration excessively, the value of said times N should be not excessive, to be as the criterion less than 10 less than the N value.
After having carried out step S232; If judged result is for denying; Explain that then said equipment is higher than not enough N of the speed duration second of said second threshold value continuously; Be not sure of said equipment and get into mobile status, return execution in step S231, whether the translational speed of next second that continues to judge said equipment is greater than second threshold value.If the judged result of step S232 is for being that then execution in step S234 confirms that said equipment is in mobile status.Wherein, to get into the judgement time point of mobile status be continuous the 5th speed of said equipment time point when being higher than said second threshold value for said equipment.
In conjunction with above Fig. 1, Fig. 2 and embodiment shown in Figure 3; It will be apparent to those skilled in the art that; Since must N continuous the translational speed of second be higher than said second threshold value and could judge the entering mobile status again; When the place is judged as stationary state at said equipment, may produces a suitable end position and not add up.Below in conjunction with Fig. 4 mileage compensation of the present invention is described further.
Fig. 4 illustrates a fourth embodiment in accordance with the invention, a kind of equipment moving view of the mileage statistical method based on GPS.As shown in the figure, transverse axis is a time shaft, and the longitudinal axis is a velocity axis, and shown in Figure 4 is after equipment reduces by high-speed mobile time period of high-speed mobile again.Particularly, distribute on the time shaft 4 time point t1, t2, t3 and t4, wherein, t1 point corresponding device is decelerated to the moment point of first threshold for the first time, and in the present embodiment, said first threshold is V1; T2 point corresponding device is judged as in one-period and gets into stationary state constantly, further, and at t2 constantly.The residing position of said equipment is a primary importance, and in the present embodiment, said primary importance is the A point; T3 point corresponding device raises speed to the moment point of second threshold value when stationary state for the first time, and in the present embodiment, said second threshold value is V2; T4 point corresponding device is in one-period, and said equipment is judged the moment that becomes mobile status from stationary state, and further, at t4 constantly, the residing position of said equipment is the second place, and in the present embodiment, the said second place is the B point.
More particularly, t1, M second at interval between t2 two time points, said time interval M second is to judge whether said equipment gets into the time that stationary state spends; T3, K second at interval between t4 two time points, said time interval K second is to judge whether said equipment gets into the time that mobile status spends, wherein; Said M value can be got identical value with said K value, in conjunction with Fig. 2, embodiment shown in Figure 3, in a preference; Said M, the K value is 5, further; Said M value and said K value also can adopt different value, and said variation does not influence the enforcement of present embodiment, does not repeat them here.
Further, with reference to figure 4, said equipment is respectively the A point, the B point with t4 position constantly constantly at t2.When statistical method according to the present invention is added up; Said equipment was mobile status before said time point t2; After said time point t4, also be mobile status; The statistics of mileage does not comprise the displacement that said equipment sends in the time period between t2 and the t4, therefore, t2 and the residing position of t4 time point equipment is added up apart from compensating as mileage.
It will be appreciated by those skilled in the art that said first threshold, second threshold value, judge that numerical value such as times N can adopt different value as required continuously, those skilled in the art combine prior art can realize said variant, do not repeat them here.
More than specific embodiment of the present invention is described.It will be appreciated that the present invention is not limited to above-mentioned specific implementations, method of wherein not describing in detail to the greatest extent and processing procedure are construed as with the common mode in this area to be implemented; Those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present invention.

Claims (7)

1. the mileage statistical method based on GPS is characterized in that, comprising:
A. confirm first threshold speed and second speed threshold value, said first threshold speed is less than said second speed threshold value;
Whether the translational speed of b. judging the equipment that is positioned is less than said first threshold speed or be higher than said second speed threshold value, wherein:
If the said equipment of being positioned is in mobile status, and translational speed is less than said first threshold speed, the translational speed that then continues to judge the said equipment that is positioned in a period of time whether all less than said first threshold speed; If judged result confirms then that for being the said equipment of being positioned remains static, if judged result confirms then that for not the said equipment that is positioned still is in mobile status,
If the said equipment of being positioned remains static; And translational speed is higher than said second speed threshold value, then continues to judge whether the translational speed of the said equipment that is positioned all is higher than said second speed threshold value in a period of time, if judged result is for being; Confirm that then the said equipment of being positioned is in mobile status; If judged result confirms then that for not the said equipment that is positioned still remains static
C. add up the displacement that the said equipment of being positioned is confirmed as when being in mobile status to be produced, as the distance travelled statistics;
The displacement that is produced when d. the equipment of being positioned described in the step b being confirmed as stationary state is calculated, as the distance travelled statistics addition that obtains among mileage compensation and the step c;
Statistical method according to claim 1, wherein, said step b also comprises the steps:
B'. if the said equipment of being positioned remains static, and translational speed is between first threshold speed and the second speed threshold value, then need not obtain current translational speed.
2. statistical method according to claim 1 is characterized in that said step a also comprises the steps:
A1. per second obtains once the current translational speed of the said equipment that is positioned.
3. statistical method according to claim 1, wherein, said step b also comprises the steps:
B'. if the said equipment of being positioned remains static, and translational speed is between first threshold speed and the second speed threshold value, then need not obtain current translational speed.
4. according to each described statistical method in the claim 1 to 3, it is characterized in that a period of time among the said step b was at least 5 seconds.
5. statistical method according to claim 4 is characterized in that, the said translational speed that is decided to be equipment is obtained through GPS module.
6. according to claim 1 or 5 described statistical methods, it is characterized in that the bulk billing system of step c is with the addition of said equipment per second displacement, wherein, said equipment per second displacement is said equipment current second of speed and the product of time.
7. statistical method according to claim 6 is characterized in that, comprises the steps: in the steps d
Residing primary importance when d1. recording unit is confirmed as stationary state;
D2. recording unit is determined the residing second place when the stationary state described in the step c1 transfers motion state to;
D3. with the mileage statistics by way of compensation of the air line distance between the primary importance and the second place.
CN2010106069568A 2010-12-27 2010-12-27 Mileage statistic method based on GPS (global positioning system) Pending CN102538817A (en)

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CN102853845A (en) * 2012-09-10 2013-01-02 无锡坦程物联网科技有限公司 Method for statistics of vehicle driving mileage based on GPS position information
CN103047995A (en) * 2012-11-29 2013-04-17 江苏鸿信系统集成有限公司 GPS (global positioning system) terminal mileage statistical method based on satellite positioning technology
CN103634737A (en) * 2012-08-23 2014-03-12 环达电脑(上海)有限公司 Mobile apparatus for selecting related advertisement through position and external situation, and selection method thereof
CN103697902A (en) * 2013-12-27 2014-04-02 深圳市金立通信设备有限公司 Navigation method and device
CN104006822A (en) * 2013-02-26 2014-08-27 深圳市赛格导航科技股份有限公司 Vehicle driving mileage counting method
CN106813669A (en) * 2015-12-01 2017-06-09 骑记(厦门)科技有限公司 The modification method and device of movable information
CN109374014A (en) * 2018-12-14 2019-02-22 歌尔科技有限公司 A kind of step-recording method, system and mobile device
CN110716223A (en) * 2019-09-30 2020-01-21 北京摩拜科技有限公司 Vehicle positioning method and server
CN111399000A (en) * 2020-04-08 2020-07-10 广州通达汽车电气股份有限公司 GPS drift filtering method, state switching method of GPS terminal and switching equipment

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CN103634737A (en) * 2012-08-23 2014-03-12 环达电脑(上海)有限公司 Mobile apparatus for selecting related advertisement through position and external situation, and selection method thereof
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CN103697902A (en) * 2013-12-27 2014-04-02 深圳市金立通信设备有限公司 Navigation method and device
CN106813669A (en) * 2015-12-01 2017-06-09 骑记(厦门)科技有限公司 The modification method and device of movable information
CN106813669B (en) * 2015-12-01 2020-01-03 骑记(厦门)科技有限公司 Motion information correction method and device
CN109374014A (en) * 2018-12-14 2019-02-22 歌尔科技有限公司 A kind of step-recording method, system and mobile device
CN110716223A (en) * 2019-09-30 2020-01-21 北京摩拜科技有限公司 Vehicle positioning method and server
CN111399000A (en) * 2020-04-08 2020-07-10 广州通达汽车电气股份有限公司 GPS drift filtering method, state switching method of GPS terminal and switching equipment

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