CN106683227B - Vehicle travel partitioning method and device - Google Patents
Vehicle travel partitioning method and device Download PDFInfo
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- CN106683227B CN106683227B CN201510750507.3A CN201510750507A CN106683227B CN 106683227 B CN106683227 B CN 106683227B CN 201510750507 A CN201510750507 A CN 201510750507A CN 106683227 B CN106683227 B CN 106683227B
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Abstract
A kind of vehicle travel partitioning method and device, vehicle travel division methods include: the down times and number of breakpoints for obtaining train signal instrument；It is for statistical analysis to all down times and all number of breakpoints, obtain the first breakpoint duration threshold value and the second breakpoint duration threshold value；When breakpoint duration is between the first duration threshold value and the second duration threshold value, the breakpoint mileage between two breakpoints is obtained；Calculate the breakpoint speed that all breakpoint mileages reach setting mileage number threshold value；It is for statistical analysis to all breakpoint speed and number of breakpoints, obtain the first breakpoint threshold speed and the second breakpoint threshold speed；Vehicle travel cutting is carried out based at least one parameter in breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint duration threshold value, the second breakpoint duration threshold value, the first breakpoint threshold speed, the second breakpoint threshold speed, setting mileage number threshold value, distinguishes the travel type between breakpoint.Vehicle travel partitioning method and device improves the accuracy of vehicle travel division.
Description
Technical field
The present invention relates to data analysis field more particularly to a kind of vehicle travel partitioning method and devices.
Background technique
With the fast development of automobile industry, more and more configuration of automobiles have cab signal instrument.Cab signal instrument can be with
Record and upload in real time the state in vehicle travel process, the time including vehicle driving, locating geographical location, travel speed
Etc. information.The driving process of vehicle includes multiple and different stroke, and the information such as speed, path, the running time of every section of stroke are not
Together.
In the prior art, it needs the information by recording cab signal instrument to analyze, cab signal instrument is recorded
Running information is included into different strokes.In order to divide vehicle travel, it is related to the time of vehicle driving, locating geographical position
It sets, the information such as travel speed.It is disconnected on time of occurrence since dropout can be generated in the acquisition of cab signal instrument and upload procedure
Point interferes the division of vehicle travel.Common practice is that time threshold is manually set in the prior art, works as cab signal
When time value between the breakpoint of instrument record is greater than setting time threshold value, that is, it is determined as new stroke.
But since the type of breakpoint is various, in the stroke division methods of the prior art, the threshold value scope of application is manually set
It is limited, cause vehicle travel to divide inaccuracy.
Summary of the invention
Present invention solves the technical problem that being how to improve the accuracy of vehicle travel division.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of stroke division methods, the vehicle travel is drawn
Point method includes:
Obtain the down times and number of breakpoints of train signal instrument；
It is for statistical analysis to all down times and all number of breakpoints, to obtain the first breakpoint duration threshold value and second
Breakpoint duration threshold value；The first breakpoint duration threshold value is less than the second breakpoint duration threshold value；
When the breakpoint duration between two breakpoints is between the first duration threshold value and the second duration threshold value, obtain
Take the breakpoint mileage between described two breakpoints；
Calculate all breakpoint mileages reach setting mileage number threshold value described two breakpoints between breakpoint speed；
It is for statistical analysis to all breakpoint speed and number of breakpoints, to obtain the first breakpoint threshold speed and the second breakpoint
Threshold speed；The first breakpoint threshold speed is less than the second breakpoint threshold speed；
When based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint duration threshold value, the second breakpoint
Long threshold value, the first breakpoint threshold speed, the second breakpoint threshold speed, at least one parameter set in mileage number threshold value carry out
Vehicle travel cutting, to distinguish the travel type between breakpoint.
Optionally, described pair of all down times and all number of breakpoints are for statistical analysis includes:
Logarithm is taken to the number of breakpoints, the first-order difference for calculating the down times stablizes the time, second differnce is stablized
Time, first stablize time, breakpoint duration mean value and breakpoint duration standard deviation；Wherein, described first stablizes the time as two scales
Function wave crest first-order difference corresponding with the ratio of average value in a cycle is divided to stablize the time；
Wherein, described first when the long threshold value of breakpoint be the first-order difference stablize the time, the second differnce stablize the time
The maximum value for stablizing the time with described first；The second breakpoint duration threshold value is to break described in the breakpoint duration mean value and three times
The sum of point duration standard deviation.
Optionally, to all breakpoint speed and all number of breakpoints are for statistical analysis includes:
Calculate average speed, velocity standard difference and the middle bit rate between all described two breakpoints；
Wherein, the First Speed threshold value is the middle bit rate；The second speed threshold value be highway limit speed with
And the minimum value of the sum of velocity standard difference described in the average speed and three times.
Optionally, progress vehicle travel cutting includes: the breakpoint speed in the First Speed threshold value and described
When in second speed threshold range, determine that the vehicle is in original stroke.
Optionally, the progress vehicle travel, which is cut, includes:
When the breakpoint duration is less than the first breakpoint duration threshold value, determine that the vehicle is in original stroke；It is described
When breakpoint duration is greater than the second breakpoint duration threshold value, determine that the vehicle is in new trip.
Optionally, the progress vehicle travel, which is cut, includes:
When breakpoint mileage between described two breakpoints is less than given threshold, determine that the vehicle is in new trip.
Optionally, the vehicle travel division methods, further includes:
Before the down times for obtaining train signal instrument and number of breakpoints, when judging the vehicle for charge mode
When, determine that the vehicle travel after the breakpoint is new trip.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of vehicle travel dividing device, the vehicle
Stroke dividing device includes:
First acquisition module obtains the down times and number of breakpoints of train signal instrument；
First analysis module, it is for statistical analysis to all down times and all number of breakpoints, to obtain
First breakpoint duration threshold value and the second breakpoint duration threshold value；The first breakpoint duration threshold value is less than the second breakpoint duration threshold
Value；
Second acquisition module, when the breakpoint duration between two breakpoints is in the first duration threshold value and second duration
When between threshold value, the breakpoint mileage between described two breakpoints is obtained；
Parameter calculating module calculates all breakpoint mileages and reaches disconnected between described two breakpoints of setting mileage number threshold value
Spot speed；
Second analysis module, it is for statistical analysis to all breakpoint speed and number of breakpoints, to obtain the first breakpoint speed
Threshold value and the second breakpoint threshold speed；The first breakpoint threshold speed is less than the second breakpoint threshold speed；
Stroke division module is based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint duration threshold
Value, is set among mileage number threshold value extremely the second breakpoint duration threshold value, the first breakpoint threshold speed, the second breakpoint threshold speed
A few parameter carries out vehicle travel cutting, to distinguish the travel type between breakpoint.
Optionally, the vehicle travel dividing device further include:
Pre- judging unit couples first acquisition module, when judging the vehicle for charge mode, determines described disconnected
Vehicle travel after point is new trip.
Optionally, the stroke division module determines when the breakpoint duration is less than the first breakpoint duration threshold value
The vehicle is in original stroke；When the breakpoint duration is greater than the second breakpoint duration threshold value, determine that the vehicle is in
New trip.
Optionally, the stroke division module determines that the vehicle is in when the breakpoint mileage is less than given threshold
New trip.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The embodiment of the present invention obtains by statisticalling analyze to the down times and the number of breakpoints that get
One duration threshold value and the second duration threshold value are compared the division for carrying out vehicle travel with breakpoint duration；Reach in breakpoint mileage
When given threshold, calculate breakpoint speed, the breakpoint speed and the number are statisticallyd analyze, obtain First Speed threshold value and
Second speed threshold value carries out the division of vehicle travel compared with breakpoint speed.Using breakpoint duration, breakpoint mileage and breakpoint speed
In conjunction with and the first breakpoint duration threshold value, the second breakpoint duration threshold value, the first breakpoint threshold speed, the second breakpoint speed threshold
At least one parameter in value, setting mileage number threshold value carries out the stroke division mode of vehicle travel cutting, improves vehicle
The accuracy that stroke divides.
Detailed description of the invention
Fig. 1 is a kind of vehicle travel division methods flow chart of the embodiment of the present invention；
Fig. 2 is another kind vehicle travel division methods flow chart of the embodiment of the present invention；
Fig. 3 is a kind of vehicle travel division methods segmentation result schematic diagram of the embodiment of the present invention；
Fig. 4 is a kind of vehicle travel dividing device structural schematic diagram of the embodiment of the present invention.
Specific embodiment
As described in the background art, it since the type of breakpoint is various, in the stroke division methods of the prior art, is manually set
Threshold value restricted application causes vehicle travel to divide inaccuracy.
The embodiment of the present invention obtains by statisticalling analyze to the down times and the number of breakpoints that get
One duration threshold value and the second duration threshold value are compared the division for carrying out vehicle travel with breakpoint duration；Reach in breakpoint mileage
When given threshold, calculate breakpoint speed, the breakpoint speed and the number are statisticallyd analyze, obtain First Speed threshold value and
Second speed threshold value carries out the division of vehicle travel compared with breakpoint speed.Using breakpoint duration, breakpoint mileage and breakpoint speed
In conjunction with and the first breakpoint duration threshold value, the second breakpoint duration threshold value, the first breakpoint threshold speed, the second breakpoint speed threshold
At least one parameter in value, setting mileage number threshold value carries out the stroke division mode of vehicle travel cutting, improves vehicle
The accuracy that stroke divides.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of vehicle travel division methods flow chart of the embodiment of the present invention.
Fig. 1 is please referred to, vehicle travel division methods include: step S101, obtain the down times of train signal instrument and break
Point number.
In the present embodiment, when the cab signal instrument of vehicle is not according to setpoint frequency up-delivering signal, show train signal
There is temporal breakpoint in instrument, and the driving information of vehicle is lost.It, can also be accurate in order in the presence of in the case where discontinuous point
Division vehicle travel, the vehicle travel division methods obtain the down times and number of breakpoints of the breakpoint.
Step S102, it is for statistical analysis to all down times and all number of breakpoints, to obtain the first breakpoint duration
Threshold value and the second breakpoint duration threshold value.
In the present embodiment, the first breakpoint duration threshold value is less than the second breakpoint duration threshold value.
In specific implementation, in seconds due to down times, the breakpoint substantial amounts got, so to all breakpoints
Time and all number of breakpoints are for statistical analysis.Logarithm is taken to the number of breakpoints first, then calculates all breakpoints
The first-order difference of time stablizes time m, second differnce stablizes time n and first and stablizes time p.Wherein, when first-order difference is stablized
Between m be two neighboring down times difference formed periodic function a cycle；It is two neighboring that second differnce, which stablizes time n,
The a cycle for the periodic function that the difference that first-order difference stablizes time m is formed；First, which stablizes time p, stablizes the time for second differnce
The function wave crest of m first-order difference corresponding with the ratio of average value in a cycle stablizes the time.
In specific implementation, need to calculate the breakpoint duration mean value mean and breakpoint duration standard deviation std of the down times.
Wherein, time span when breakpoint between a length of two neighboring breakpoint, i.e., the difference of the corresponding time value of described two breakpoints.
Breakpoint duration mean value mean is the summation of all breakpoint durations and the ratio of number of breakpoints logarithm；Breakpoint duration standard deviation std isWherein, N is number of breakpoints logarithm, and X is breakpoint duration.
In the present embodiment, it is steady to be that the first-order difference stablizes time m, the second differnce for the long threshold value of breakpoint when described first
The n and described first that fixes time stablizes the maximum value of time p；The second breakpoint duration threshold value is the breakpoint duration mean value mean
With the sum of breakpoint duration standard deviation std described in three times.
In the embodiment of the present invention, the vehicle travel division methods carry out a large amount of all down times and number of breakpoints
Statistical analysis, by using the statistical method of mathematics obtain effective first-order difference stablizes time m, second differnce stablizes time n,
First stablizes time p, breakpoint duration mean value mean and breakpoint duration standard deviation std, to obtain suitable for the described of all breakpoints
The long threshold value of breakpoint and the second breakpoint duration threshold value when first.
Step S103, when the breakpoint duration between two breakpoints is in the first duration threshold value and the second duration threshold value
Between when, obtain the breakpoint mileage between described two breakpoints.
In the present embodiment, when the breakpoint duration Δ t between described two breakpoints is less than the first breakpoint duration threshold value, institute
The time interval for stating two breakpoints is short, and breakpoint is formed by the parking behavior of dropout or short time, described two breakpoints
In same one stroke；Time when the breakpoint duration Δ t is greater than the second breakpoint duration threshold value, between described two breakpoints
Interval length, breakpoint is formed by engine misses prolonged after vehicle parking, and described two breakpoints are not in same one stroke.
When breakpoint duration Δ t is between the first duration threshold value and the second duration threshold value, the vehicle travel division methods
It needs to obtain the breakpoint mileage between described two breakpoints to be judged come further.
It is fast to calculate the breakpoint that all breakpoint mileages reach between described two breakpoints of setting mileage number threshold value by step S104
Degree.
In the present embodiment, the mileage number threshold value that sets when the breakpoint mileage of described two breakpoints is less than 1km, is sentenced as 1km
The fixed vehicle is in new trip；When the breakpoint mileage is greater than 1km, need to calculate the breakpoint speed between described two breakpoints
It is further to be judged.
In the present embodiment, the corresponding mileage number of two breakpoints is made the difference, obtains the breakpoint mileage Δ between two breakpoints
Mile calculates the ratio of breakpoint mileage Δ mile and breakpoint duration Δ t, obtains the breakpoint speed v between described two breakpoints.
In specific implementation, since mileage number is to add up to jump for integer in the onboard system of vehicle, i.e. VMT Vehicle-Miles of Travel
When less than or equal to 1km, the mileage number of onboard system will not change, therefore choose and set mileage number threshold value as 1km.The breakpoint mileage
When Δ mile is less than 1km, show between described two breakpoints, vehicle driving is apart from short, it is possible to determine that in described two breakpoints
Between, parking behavior has occurred in vehicle, to judge described two breakpoints not in same one stroke.
Step S105, it is for statistical analysis to all breakpoint speed and all number of breakpoints, to obtain the first breakpoint speed
Threshold value and the second breakpoint threshold speed.
In the present embodiment, the first breakpoint threshold speed is less than the second breakpoint threshold speed.
It is for statistical analysis to all breakpoint speed and all number of breakpoints due to breakpoint substantial amounts in specific implementation.
Average speed mv is obtained according to the ratio of the total kilometrage of all breakpoints and total duration first；Choose the centre in all down times
Down times calculate the corresponding middle bit rate xv of corresponding breakpoint；It is poor to calculate breakpoint velocity standard
Wherein, N is number of breakpoints, and Y is breakpoint speed.
In the present embodiment, the first breakpoint threshold speed is middle bit rate xv；Since vehicle is in the restriction of fastlink
Maximum speed is 120km/h, therefore choosing the second breakpoint threshold speed is 120km/h and average speed mv and 3 speeds
Minimum value between the sum of standard deviation, i.e. second speed threshold value are min (120km/h, mv+3*stdv).
Step S106, based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint duration threshold value,
Second breakpoint duration threshold value, the first breakpoint threshold speed, the second breakpoint threshold speed, setting mileage number threshold value among at least one
A parameter carries out vehicle travel cutting, to distinguish the travel type between breakpoint.
It when the vehicle is converted to drive mode by charge mode, i.e., is charging in breakpoint vehicle in front in the present embodiment
Mode is drive mode in breakpoint rear vehicle, then the vehicle travel division methods determine that the vehicle is in new trip.
In specific implementation, when the vehicle is drive mode, the vehicle travel division methods are counted according to step S105
Obtained the first breakpoint threshold speed and the second breakpoint threshold speed, the breakpoint speed described in the breakpoint speed of two breakpoints exist
When in the First Speed threshold value and the second speed threshold range, described two breakpoints are in same one stroke, the vehicle
For original stroke；When the breakpoint speed of two breakpoints is less than the first breakpoint threshold speed, show the vehicle between described two breakpoints
There is parking behavior, determines that the vehicle is new trip after the latter breakpoint；The breakpoint speed of two breakpoints is greater than second
When breakpoint threshold speed, show that the mileage number of the onboard system of vehicle has abnormal jump, including artificially adjust mileage number or
There is mistake in the mileage record data of onboard system, at this point, determining that the vehicle is new trip after the latter breakpoint.
It is described according to the first obtained breakpoint duration threshold value of step S102 and the second breakpoint duration threshold value in specific implementation
When breakpoint duration is less than the first breakpoint duration threshold value, determine that the vehicle is in original stroke；The breakpoint duration is greater than
When the second breakpoint duration threshold value, determine that the vehicle is in new trip.
Table 1 is the breakpoint data that the vehicle travel division methods of the embodiment of the present invention obtain.
| Breakpoint number | Down times | Mileage |
| 1 | 2015/1/14 19:36:40 | 2621 |
| 2 | 2015/1/14 19:36:45 | 2621 |
| 3 | 2015/1/14 19:36:50 | 2621 |
| 4 | 2015/1/14 19:53:22 | 2621 |
| 5 | 2015/1/14 19:53:27 | 2621 |
| 6 | 2015/1/14 19:53:32 | 2621 |
| 7 | 2015/1/14 19:53:37 | 2621 |
Table 1
As shown in table 1, each breakpoint corresponds to corresponding breakpoint number, down times and mileage.The vehicle travel is drawn
It is 15min that point method, which obtains the first duration threshold value according to step S102, and the second duration threshold value is 40min.Wherein, breakpoint 1 and disconnected
A length of 5s when the breakpoint of point 2, when 3 breakpoint of breakpoint 2 and breakpoint a length of 5s, the duration is respectively less than the first duration threshold value 15min, breaks
Point 1, breakpoint 2 and breakpoint 3 are in same one stroke；A length of 16min32s when 4 breakpoint of breakpoint 3 and breakpoint, in first duration
Between threshold value 15min and the second duration threshold value 40min, the breakpoint mileage Δ mile between breakpoint 3 and breakpoint 4 is 0, is less than
Not in same one stroke, breakpoint 4 is the starting point of vehicle new trip for 1km, breakpoint 3 and breakpoint 4.The breakpoint duration of breakpoint 4 and breakpoint 5
For 5s, when 6 breakpoint of breakpoint 5 and breakpoint a length of 5s, when 7 breakpoint of breakpoint 6 and breakpoint a length of 5s, the duration is respectively less than the first duration
Threshold value 15min, breakpoint 4, breakpoint 5, breakpoint 6 and breakpoint 7 are in same one stroke.
The embodiment of the present invention using breakpoint duration, breakpoint mileage and breakpoint speed in conjunction with and the first breakpoint duration threshold
Value, is set among mileage number threshold value extremely the second breakpoint duration threshold value, the first breakpoint threshold speed, the second breakpoint threshold speed
A few parameter carries out the stroke division mode of vehicle travel cutting, improves the accuracy of vehicle travel division.
Fig. 2 is another kind vehicle travel division methods flow chart of the embodiment of the present invention.
Referring to figure 2., vehicle travel division methods include: step S201, obtain the down times of train signal instrument and break
Point number.
Step S202 statisticallys analyze all down times and number of breakpoints.
Step S203, judges whether breakpoint duration is more than or equal to the first duration threshold value and is less than or equal to the second duration threshold value,
If it is, entering step S204, S207 is otherwise entered step.
Step S204, judges whether breakpoint mileage reaches given threshold, if it is, entering step S205, otherwise, enters
Step S208.
Step S205 statisticallys analyze all breakpoint speed and number of breakpoints.
Step S206, judges whether breakpoint speed is more than or equal to First Speed threshold value and is less than or equal to second speed threshold value,
If it is, entering step S209, S208 is otherwise entered step.
Step S207 judges breakpoint duration whether less than the first duration threshold value, if it is, entering step S209, otherwise
Enter step S208.
Step S208, vehicle are new trip.
Step S209, vehicle are original stroke.
Specific embodiment can refer to aforementioned corresponding embodiment, and details are not described herein again.
In the embodiment of the present invention, the stroke cutting result of vehicle travel division methods can refer to Fig. 3, and Fig. 3 is of the invention real
Apply a kind of vehicle travel division methods segmentation result schematic diagram of example.
In the embodiment of the present invention, abscissa indicates breakpoint duration, and ordinate indicates breakpoint speed, and t1 is the first breakpoint duration
Threshold value, t2 are the second breakpoint duration threshold value, and v1 is the first breakpoint threshold speed, and v2 is the second breakpoint threshold speed.
In the present embodiment, when the breakpoint duration of two breakpoints is less than the first breakpoint duration threshold value t1, two breakpoints are same
Stroke, vehicle are original stroke；When breakpoint duration is between the first breakpoint duration threshold value t1 and the second breakpoint duration threshold value t2, root
Divide stroke according to breakpoint speed: breakpoint speed shows the vehicle between described two breakpoints less than the first breakpoint threshold speed v1
There is parking behavior, determines that the vehicle is new trip after the latter breakpoint；Breakpoint speed is greater than the second breakpoint threshold speed
When v2, shows that the mileage number of the onboard system of vehicle has abnormal jump, determine that the vehicle is new after the latter breakpoint
Stroke；When breakpoint speed is between the first breakpoint threshold speed v1 and the second breakpoint threshold speed v2, show normal vehicle operation,
For two breakpoints in same one stroke, vehicle is original stroke；When breakpoint duration is greater than the second breakpoint duration threshold value t2, show described
Vehicle has parking behavior between two breakpoints, determines that the vehicle is new trip after the latter breakpoint.
The embodiment of the invention also discloses a kind of vehicle travel dividing device, Fig. 4 is a kind of vehicle row of the embodiment of the present invention
Journey dividing device structural schematic diagram.
Referring to figure 4., together referring to Fig.1, vehicle travel dividing device includes: pre- determination module 401, when judging the vehicle
When being charge mode, determine that the vehicle travel after the breakpoint is new trip.
In the present embodiment, pre- determination module 401 judges the vehicle mode before and after breakpoint, is to fill in breakpoint vehicle in front
When power mode and breakpoint rear vehicle are drive mode, determine that the vehicle is new trip after breakpoint.
First acquisition module 402 obtains the down times and number of breakpoints of train signal instrument.
In the present embodiment, for vehicle when being all drive mode before and after breakpoint, the first acquisition module 402 is acquired breakpoint number
According to, including down times and number of breakpoints.
First analysis module 403 couples first acquisition module 402, collected all to the first acquisition module 402
The down times and all number of breakpoints are for statistical analysis, when obtaining the first breakpoint duration threshold value and the second breakpoint
Long threshold value；Wherein, the first breakpoint duration threshold value is less than the second breakpoint duration threshold value.
Second acquisition module 404, when the breakpoint duration between two breakpoints is in the first duration threshold value and described second
When between duration threshold value, the breakpoint mileage between described two breakpoints is obtained.
Parameter calculating module 405 calculates all breakpoint mileages and reaches between described two breakpoints of setting mileage number threshold value
Breakpoint speed.
Second analysis module 406, it is for statistical analysis to all breakpoint speed and number of breakpoints, to obtain the first breakpoint speed
Spend threshold value and the second breakpoint threshold speed；The first breakpoint threshold speed is less than the second breakpoint threshold speed.
Stroke division module 407, when based on the breakpoint duration, breakpoint mileage, breakpoint speed and first breakpoint
Long threshold value, the first breakpoint threshold speed, the second breakpoint threshold speed, is set among mileage number threshold value the second breakpoint duration threshold value
At least one parameter carry out vehicle travel cutting, to distinguish the travel type between breakpoint.
In the present embodiment, the stroke division module 407 is less than the first breakpoint duration threshold value in the breakpoint duration
When, determine that the vehicle is in original stroke；When the breakpoint duration is greater than the second breakpoint duration threshold value, the vehicle is determined
Be in new trip.The stroke division module determines that the vehicle is in new when the breakpoint mileage is less than given threshold
Stroke.
Specific embodiment can refer to previous embodiment, and details are not described herein again.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (11)
1. a kind of vehicle travel division methods characterized by comprising
Obtain the down times and number of breakpoints of train signal instrument；When the train signal instrument is not according to communication on setpoint frequency
Number when, show the breakpoint of the train signal instrument time of occurrence；
It is for statistical analysis to all down times and all number of breakpoints, to obtain the first breakpoint duration threshold value and the second breakpoint
Duration threshold value；The first breakpoint duration threshold value is less than the second breakpoint duration threshold value；
When the breakpoint duration between two breakpoints is between the first breakpoint duration threshold value and the second breakpoint duration threshold value
When, obtain the breakpoint mileage between described two breakpoints；
Calculate all breakpoint mileages reach setting mileage number threshold value described two breakpoints between breakpoint speed；
It is for statistical analysis to all breakpoint speed and number of breakpoints, to obtain the first breakpoint threshold speed and the second breakpoint speed
Threshold value；The first breakpoint threshold speed is less than the second breakpoint threshold speed；
Based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint duration threshold value, the second breakpoint duration threshold
Value, setting mileage number threshold value carry out vehicle travel cutting, to distinguish the travel type between breakpoint；
Alternatively, based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint threshold speed, the second breakpoint
Threshold speed carries out vehicle travel cutting, to distinguish the travel type between breakpoint；
Alternatively, based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint threshold speed, the second breakpoint
Threshold speed, the first breakpoint duration threshold value, the second breakpoint duration threshold value carry out vehicle travel cutting, to distinguish the row between breakpoint
Journey type.
2. vehicle travel division methods according to claim 1, which is characterized in that described pair of all down times and all
Number of breakpoints is for statistical analysis to include:
Logarithm is taken to the number of breakpoints, the first-order difference for calculating the down times stablizes the time, second differnce stablizes the time,
First stablizes time, breakpoint duration mean value and breakpoint duration standard deviation；Wherein, the first-order difference stable time is two neighboring
The a cycle for the periodic function that the difference of down times is formed；It is steady for two neighboring first-order difference that the second differnce stablizes the time
The a cycle for the periodic function that the difference fixed time is formed；Described first stablizes the time as second differnce function wave crest and a week
The corresponding first-order difference of the ratio of average value stablizes the time in phase；
Wherein, the first breakpoint duration threshold value stablizes time, the second differnce stable time and institute for the first-order difference
State the first maximum value for stablizing the time；When the second breakpoint duration threshold value is breakpoint described in the breakpoint duration mean value and three times
The sum of long standard deviation.
3. vehicle travel division methods according to claim 1, which is characterized in that all breakpoint speed and number of breakpoints
It is for statistical analysis to include:
Calculate average speed, velocity standard difference and the middle bit rate between all described two breakpoints；
Wherein, the first breakpoint threshold speed is the middle bit rate；The second breakpoint threshold speed is highway limitation speed
The minimum value of the sum of velocity standard difference described in degree and the average speed and three times.
4. vehicle travel division methods according to claim 1, which is characterized in that the progress vehicle travel cutting packet
It includes: when the breakpoint speed is within the scope of the first breakpoint threshold speed and the second breakpoint threshold speed, described in judgement
Vehicle is in original stroke.
5. vehicle travel division methods according to claim 1, which is characterized in that the progress vehicle travel cutting packet
It includes:
When the breakpoint duration is less than the first breakpoint duration threshold value, determine that the vehicle is in original stroke；
When the breakpoint duration is greater than the second breakpoint duration threshold value, determine that the vehicle is in new trip.
6. vehicle travel division methods according to claim 1, which is characterized in that the progress vehicle travel cutting packet
It includes:
When breakpoint mileage between described two breakpoints is less than setting mileage number threshold value, determine that the vehicle is in new trip.
7. vehicle travel division methods according to claim 1, which is characterized in that further include:
Before the down times for obtaining train signal instrument and number of breakpoints, when judging the vehicle for charge mode,
Determine that the vehicle travel after the breakpoint is new trip.
8. a kind of vehicle travel dividing device characterized by comprising
First acquisition module obtains the down times and number of breakpoints of train signal instrument；When the train signal instrument not according to
When setpoint frequency up-delivering signal, show the breakpoint of the train signal instrument time of occurrence；
First analysis module, it is for statistical analysis to all down times and all number of breakpoints, to obtain first
Breakpoint duration threshold value and the second breakpoint duration threshold value；The first breakpoint duration threshold value is less than the second breakpoint duration threshold value；
Second acquisition module, when the breakpoint duration between two breakpoints is in the first breakpoint duration threshold value and second breakpoint
When between duration threshold value, the breakpoint mileage between described two breakpoints is obtained；
It is fast to calculate the breakpoint that all breakpoint mileages reach between described two breakpoints of setting mileage number threshold value for parameter calculating module
Degree；
Second analysis module, it is for statistical analysis to all breakpoint speed and number of breakpoints, to obtain the first breakpoint threshold speed
With the second breakpoint threshold speed；The first breakpoint threshold speed is less than the second breakpoint threshold speed；
Stroke division module, based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint duration threshold value,
Second breakpoint duration threshold value, setting mileage number threshold value carry out vehicle travel cutting, to distinguish the travel type between breakpoint；Or
Person is based on the breakpoint duration, breakpoint mileage, breakpoint speed and the first breakpoint threshold speed, the second breakpoint speed threshold
Value carries out vehicle travel cutting, to distinguish the travel type between breakpoint；Alternatively, based on the breakpoint duration, breakpoint mileage, breaking
Spot speed and the first breakpoint threshold speed, the second breakpoint threshold speed, the first breakpoint duration threshold value, the second breakpoint duration
Threshold value carries out vehicle travel cutting, to distinguish the travel type between breakpoint.
9. vehicle travel dividing device according to claim 8, which is characterized in that further include:
Pre- judging unit couples first acquisition module, when judging the vehicle for charge mode, determine the breakpoint it
Vehicle travel afterwards is new trip.
10. vehicle travel dividing device according to claim 8, which is characterized in that the stroke division module is described
When breakpoint duration is less than the first breakpoint duration threshold value, determine that the vehicle is in original stroke；The breakpoint duration is greater than
When the second breakpoint duration threshold value, determine that the vehicle is in new trip.
11. vehicle travel dividing device according to claim 8, which is characterized in that the stroke division module is described
When breakpoint mileage is less than setting mileage number threshold value, determine that the vehicle is in new trip.
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| CN111598369A (en) * | 2019-02-21 | 2020-08-28 | 北京嘀嘀无限科技发展有限公司 | Risk prevention method and system based on signal loss abnormity |
| CN109887292B (en) * | 2019-04-04 | 2022-01-25 | 上海赢科信息技术有限公司 | Vehicle type identification method and system |
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