CN107085972A - The computational methods and device of a kind of parking position number - Google Patents
The computational methods and device of a kind of parking position number Download PDFInfo
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- CN107085972A CN107085972A CN201710459571.5A CN201710459571A CN107085972A CN 107085972 A CN107085972 A CN 107085972A CN 201710459571 A CN201710459571 A CN 201710459571A CN 107085972 A CN107085972 A CN 107085972A
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- parking
- parking stall
- file
- parklog
- exclusive
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
Abstract
The invention discloses a kind of computational methods of parking position number and device, this method includes：Obtain the parklog file of the registration of vehicle parking information in parking lot in a measurement period；Data cleansing processing is carried out to parklog file；Parklog file after being handled according to data cleansing, judges whether parking lot has the exclusive parking stall parked for designated vehicle and the exclusive parking stall number when there is exclusive parking stall；The vehicle number or according to vehicle number and the exclusive parking stall number of marching into the arena of marching into the arena indicated according to parklog file, calculate the quasi- parking stall number in the parking lot in a measurement period, compare the quasi- parking stall number in the parking lot each measurement period Nei, using the maximum of quasi- parking stall number as the parking lot calculated parking stall number.The technical scheme of the embodiment of the present invention can accurately estimate the actual parking stall number in parking lot, meet the regulatory requirement in parking lot, facilitate user to stop, optimize Consumer's Experience, improve the service level in parking lot.
Description
Technical field
The present invention relates to managing system of car parking technical field, and in particular to a kind of computational methods of parking position number and
Device.
Background technology
Due to parking lot management and other various factors, (such as irregular parking, long to rent exclusive parking stall, rubbish etc. takes
Parking stall), cause the reality in parking lot can be more next with parking stall number and the planning parking stall inconsistent situation of number that parking lot management side is recorded
It is more, it is impossible to meet the regulatory requirement in parking lot, it also have impact on the experience of parking user.
The content of the invention
The invention provides a kind of computational methods of parking position number and device, the reality in parking lot can be accurately calculated
Border can use parking stall number, meet the regulatory requirement in parking lot, improve the service ability in parking lot, improve Consumer's Experience.
According to an aspect of the invention, there is provided a kind of computational methods of parking position number, this method includes：
Obtain the parklog file of the registration of vehicle parking information in parking lot in a measurement period；
Data cleansing processing is carried out to the parklog file；
Parklog file after being handled according to data cleansing, judges whether the parking lot has what is parked for designated vehicle
Exclusive parking stall and the exclusive parking stall number when there is exclusive parking stall；
The vehicle number or according to the vehicle number and described exclusive of marching into the arena of marching into the arena indicated according to the parklog file
Parking stall number, calculates the quasi- parking stall number in the parking lot in a measurement period,
Compare the quasi- parking stall number in the parking lot each measurement period Nei, should as what is calculated using the maximum of quasi- parking stall number
The parking stall number in parking lot.
Alternatively, data cleansing processing is carried out to the parklog file includes：
Filtering out does not have the record of license board information in parklog file,
For remaining record, judge each record whether only march into the arena information and without information of leaving the theatre,
It is that then, the field time that enters in default parking duration and the information of marching into the arena determines the car that the record is indicated
Leaving time, and left the theatre information for record supplement；
Wherein, the default parking duration is averagely stopped duration or according to institute according to all vehicles in parking lot N days
The average parking duration for entering M days before field time identical stated in the information of marching into the arena of record is determined.
Alternatively, data cleansing processing is carried out to the parklog file includes：
It is according to the parking duration respectively recorded in the parklog file, the parking duration respectively recorded and one is pre-
If threshold value is compared,
If greater than or equal to the predetermined threshold value, then retain the record,
The record is then filtered out if less than the predetermined threshold value；
Wherein, the predetermined threshold value is the parking duration calculation of all vehicles in a measurement period according to the parking lot
After variance and standard deviation, determined by the standard deviation of three times.
Alternatively, the parklog file after being handled according to data cleansing, judges whether the parking lot has for specifying car
The exclusive parking stall parked and the exclusive parking stall number when there is exclusive parking stall include：
The information of the corresponding predetermined characteristic described in parklog file after being handled according to data cleansing, extraction is stopped
Corresponding characteristic vector is each recorded in car journal file, the grader that this feature vector is inputted into training in advance is classified,
Classification results are obtained, determine whether parking lot has the exclusive parking stall parked for designated vehicle according to classification results.
Alternatively, the vehicle number or according to vehicle number and the institute of marching into the arena of marching into the arena indicated according to the parklog file
Exclusive parking stall number is stated, calculating the quasi- parking stall number in the parking lot in a measurement period includes：
Obtain a measurement period in corresponding vehicle number of marching into the arena of multiple time points, by it is described march into the arena vehicle number and it is described solely
Account for parking stall number addition and obtain the time point corresponding first parking stall number,
Compare the corresponding first parking stall number of each time point in a measurement period, regard the first parking stall number maximum as the system
The quasi- parking stall number in parking lot in the meter cycle.
According to another aspect of the present invention there is provided a kind of computing device of parking position number, the device includes：
Log acquisition module, the parklog for obtaining the registration of vehicle parking information in parking lot in a measurement period
File；
Data cleansing module, for carrying out data cleansing processing to the parklog file；
Judge module, for being handled according to data cleansing after parklog file, judge whether the parking lot has confession
The exclusive parking stall that designated vehicle is parked and the exclusive parking stall number when there is exclusive parking stall；
Computing module, for the vehicle number or according to the vehicle number of marching into the arena of marching into the arena indicated according to the parklog file
And the exclusive parking stall number, the quasi- parking stall number in the parking lot in a measurement period is calculated, comparing should in each measurement period
The quasi- parking stall number in parking lot, using the maximum of quasi- parking stall number as the parking lot calculated parking stall number.
Alternatively, the data cleansing module, does not have the note of license board information specifically for filtering out in parklog file
Record, for remaining record, judges whether each record only marches into the arena information and be then, during according to default parking without information of leaving the theatre
The field time that enters in long and described information of marching into the arena determines the leaving time for the vehicle that the record is indicated, and is record supplement
Leave the theatre information；
Wherein, the default parking duration is averagely stopped duration or according to institute according to all vehicles in parking lot N days
The average parking duration for entering M days before field time identical stated in the information of marching into the arena of record is determined.
Alternatively, the data cleansing module, during specifically for according to the parking respectively recorded in the parklog file
It is long, the parking duration respectively recorded and a predetermined threshold value are compared, if greater than or equal to the predetermined threshold value,
Then retain the record, the record is then filtered out if less than the predetermined threshold value；
Wherein, the predetermined threshold value is the parking duration calculation of all vehicles in a measurement period according to the parking lot
After variance and standard deviation, determined by the standard deviation of three times.
Alternatively, the judge module, specifically for being handled according to data cleansing after parklog file described in
The information of correspondence predetermined characteristic, extraction obtains each recording corresponding characteristic vector in parklog file, by this feature vector
The grader of input training in advance is classified, and obtains classification results, determines whether parking lot has for specifying according to classification results
The exclusive parking stall of storing cycle.
Alternatively, the computing module, specifically for obtaining corresponding car of marching into the arena of multiple time points in a measurement period
Number, the vehicle number of marching into the arena is added with the exclusive parking stall number and obtains the time point corresponding first parking stall number, compares one
Each time point corresponding first parking stall number, regard the first parking stall number maximum as parking lot in the measurement period in individual measurement period
Quasi- parking stall number.
The beneficial effects of the invention are as follows：The computational methods and device of the parking position number of the embodiment of the present invention are by obtaining
The parklog file in parking lot in one measurement period, carries out data cleansing processing to daily record, whether judges the parking lot
Exclusive parking stall and the exclusive parking stall number when there is exclusive parking stall, calculate the quasi- parking stall number in the parking lot in a measurement period,
Finally compare the quasi- parking stall number in the parking lot each measurement period Nei, regard the maximum of quasi- parking stall number as the parking calculated
The parking stall number of field.In this way, by being analyzed and processed to the vehicle number for entering parking lot, can more accurately calculate parking
The reality of field can use parking stall number, meet the regulatory requirement in parking lot, improve the service ability in parking lot, improve user's body
Test.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the computational methods of the parking position number of one embodiment of the invention；
Fig. 2 is the schematic flow sheet of the computational methods of the parking position number of one embodiment of the invention；
Fig. 3 is the structured flowchart of the computing device of the parking position number of one embodiment of the invention.
Embodiment
The design concept of the present invention is：For can actually use parking stall number and parking lot present in existing parking lot management
The available parking stall number of record is inconsistent, and parking lot and car owner user can not learn that a parking lot actually can asking with parking stall number
Estimating for overall parking stall number is done in topic, daily record of the embodiment of the present invention for entering departure yard's vehicle in a measurement period (as daily)
Calculate, in the case where entering the enough specifications of daily record that appear on the scene (after having carried out data cleansing processing) daily, the maximum car on the scene of history
Digit can approximately regard the total space number in parking lot as, so that parking stall number can be used by obtaining the reality in the parking lot, it is parking lot
Manager carries out parking management and provides reference, meets the demand of parking lot and parking user.
In practical application, also asked when using the parklog in parking lot can actually be calculated with parking stall number in the presence of some
Topic, for example, parklog is lack of standardization, causes some cars only to be marched into the arena information for various reasons, no appearance information, or even sometimes
What is marched into the arena is not necessarily motor vehicle.In addition, when calculating the parking stall number in parking lot according to vehicle, exclusive parking stall is rented for those length
Need to consider, because in the user in parking lot, some are that length is hired a car, even if the car does not come, but its parking stall does not allow by other really
Motor vehicle takes, i.e. hiring a car to monopolize by these length uses.
For these problems the embodiments of the invention provide a kind of computational methods of parking position number, as shown in figure 1, should
The computational methods of parking position number comprise the following steps：
Step S101, obtains the parklog file of the registration of vehicle parking information in parking lot in a measurement period；
Step S102, data cleansing processing is carried out to the parklog file；
Step S103, the parklog file after being handled according to data cleansing judges whether the parking lot has for specifying
The exclusive parking stall of storing cycle and the exclusive parking stall number when there is exclusive parking stall；
Step S104, according to the parklog file indicate march into the arena vehicle number or according to it is described march into the arena vehicle number and
The exclusive parking stall number, calculates the quasi- parking stall number in the parking lot in a measurement period,
Step S105, compares the quasi- parking stall number in the parking lot each measurement period Nei, using the maximum of quasi- parking stall number as
The parking stall number in the parking lot calculated.
Understand as shown in Figure 1, the computational methods of the parking position number of the present embodiment, the parking day in parking lot is obtained first
The problem of will, influence result of calculation lack of standardization for parklog, the method for the present embodiment carries out data cleansing to parklog
Processing, after data cleansing processing, carries out the judgement that parking stall number is monopolized in parking lot, according to parklog further according to parklog
And the reality in the result calculating parking lot of exclusive parking stall number can use parking stall number, so as to ensure that the accurate of the data calculated
Property, the regulatory requirement in parking lot is also met, parking assisting improves service ability, improve Consumer's Experience.
Fig. 2 is the schematic flow sheet of the computational methods of the parking position number of one embodiment of the invention, with reference to Fig. 2
Step, which carries out more specific description, to be realized to the computational methods of the parking position of the present embodiment.
Referring to Fig. 2, flow starts to first carry out step S201.
Step S201, obtains original log；
Here original log is obtained from parking lot end, indicates to enter and leave the basic letter of the vehicle in the parking lot
The parklog file of breath.In one embodiment, specific information (such as parking lot for saving parking lot in parklog file
Title or numbering), the following essential information of each vehicle for entering parking lot：License board information, information of marching into the arena, information of leaving the theatre
Whether it is the long information hired a car.Here length is hired a car the car for referring to that long-term lease parking stall contract has been signed in those and parking lot
.
Step S202, data of being left the theatre to the record polishing in daily record；
Some, which are always had, in practical application, in the original log that acquisition is caused for various reasons records lack of standardization, for
These nonstandard records need to carry out data cleansing, to ensure the accuracy of follow-up data processing, reduce computation complexity.
Specifically, in the present embodiment, first determining whether to whether there is the note without record license board information in parklog file
Record, if so, then filtering out those does not have the record of license board information.Because car plate is unique mark into the vehicle in parking lot
Know, be most likely not motor vehicle if no car plate, will not also take parking stall, and then can not stop using these records to calculate
The parking stall number in parking lot.
For remaining record (that is, those records for having license board information), judge it is each record whether only march into the arena information and
Without information of leaving the theatre,
It is that then, the field time that enters in default parking duration and information of marching into the arena determines to record leaving the theatre for the vehicle of instruction
Time, and supplement information of leaving the theatre for the record；Wherein, it is average according to all vehicles in parking lot N days to preset parking duration
Parking duration or according to the average parking duration for entering M days before the field time identical determination in the information of marching into the arena of the record.
That is, lacking the record of the vehicle of marching into the arena for information of leaving the theatre for those, it is necessary to supplement information of leaving the theatre.This implementation
Example provides two kinds of polishings and left the theatre the mode of information, and a kind of mode is stopped with the determination of average down time in the parking lot in N days
Car duration, then according to parking duration and enters field time and is left the theatre information for record supplement.Such as N=1, then according to the parking
The average down time entered field time, calculate the same day parking lot described in a record in journal file.For example, this stops
50 car turnover are had on the day of parking lot, the down time (e.g., 2 hours) of each car in this 50 cars is added divided by 50 can obtain
To the same day parking lot average down time (such as 2 hours) if, field time and is entered at (2 hours) according to default parking duration
(such as 10 points of morning) leaves the theatre information (leaving time for record supplement：12 noon).
Another way is：The car marched into the arena with M days (7 days or 10 days) same time of the parking lot history or same period
Average down time, be used as default parking duration.For example, having a note in the parklog file in the June 1 obtained
Record, information of only marching into the arena at 10 points (wherein have recorded into the field time morning) then, is entered according to continuous at 10 points in 7 day morning before June 1
Enter the leaving time of the vehicle of Parking, average down time is calculated, by obtained average down time (such as 1.5 hours)
Then it is record according to presetting parking duration (1.5 hours) and entering field time (such as 10 points of morning) as default parking duration
Supplement information (leaving time of leaving the theatre：Thirty at noon 11).
In the present embodiment, why for lack information of leaving the theatre record supplement comprising leaving time information of leaving the theatre be for
, it is follow-up accurately calculate in a measurement period sometime on, the number of vehicles on the scene in parking lot, so based on
Field number of vehicles calculates the parking stall number in parking lot.
Step S203, filtering is unsatisfactory for the record of parking duration；
In practical application, it is contemplated that too short down time is probably only to find parking stall into parking lot and do not exist finally
The Parking, that is, be not take up parking stall, then need to be filtered the corresponding record of such case, to ensure result of calculation
Accuracy.
In theory, the down time into the vehicle in parking lot meets normal distribution, therefore, it can by calculating parking lot
Vehicle down time average and variance draw predetermined threshold value, specially treated is then done to exceptional value according to predetermined threshold value.
Specifically, according to the parking duration respectively recorded in parklog file, the parking duration of each record and one is pre-
If threshold value is compared, if greater than or equal to the predetermined threshold value, then retain the record, if less than predetermined threshold value then mistake
Filter the record；Wherein, predetermined threshold value is the parking duration calculation of all vehicles in a measurement period according to the parking lot
After variance and standard deviation, determined by the standard deviation of three times.That is, confidential interval is in 95%, the sample standard deviation beyond the confidential interval
It may filter that.
Step S204, judges that long rent monopolizes parking stall number；
Above have been described, by enter parking lot vehicle number calculate parking lot reality can with parking stall number, it is necessary to
The long of parking lot is rented by exclusive situation judged, it is a kind of in the case of, when judging that a parking lot is not present long rent and monopolizes
During parking stall, then the parking stall number in the parking lot is to be equal to the maximum vehicle number into the Parking.In another case, when sentencing
Break and parking lot and exist long when renting exclusive parking stall, determine whether the long number for renting exclusive parking stall number, such as 10 or 50
It is individual etc..Then the parking stall in the parking lot is several monopolizes parking stall number according to the maximum vehicle number for entering the Parking and long rent
Number, which is integrated, to be determined.
Whether the length position of hiring a car for judging a parking lot is exclusive using belonging in weak typing problem, the present embodiment according to number
According to the information of the corresponding predetermined characteristic described in cleaned parklog file, extraction obtains every in parklog file
Individual to record corresponding characteristic vector, the grader that this feature vector is inputted into training in advance is classified, and obtains classification results, root
Determine whether parking lot has the exclusive parking stall parked for designated vehicle and the exclusive car when there is exclusive parking stall according to classification results
Digit.
Here grader can be trained by boosting algorithms, but not limited to this, it would however also be possible to employ GBDT
(Gradient Boosting Decision Tree, gradient lifting decision tree) or Adaboost iterative algorithms etc..
The information of the corresponding predetermined characteristic described in parklog file after being handled according to data cleansing, here predetermined
Feature is, for example, that (as daily), a long number of hiring a car rents exclusive parking stall with the long of parking lot management side's preservation in a measurement period
Number between difference, or retention of hiring a car long daily change number etc..
Step S205, calculates history maximum parking number；
A parking lot is being obtained without the exclusive parking stall number of long rent, and the length when there is length to rent exclusive parking stall number is rented and monopolizes car
History maximum parking number is calculated after digit, in this step.
The parking position number of each measurement period (for example, daily) is calculated first, specifically, obtaining a system
Corresponding vehicle number of marching into the arena of multiple time points in the meter cycle, the vehicle number that will march into the arena is added with exclusive parking stall number obtains the time point pair
The the first parking stall number answered, compares the corresponding first parking stall number of each time point in a measurement period, by the first parking stall number maximum
It is used as the quasi- parking stall number in parking lot in the measurement period.
That is, carrying out repeatedly judging and calculating for the vehicle number on the scene within one day, for example, counting every one minute
Calculate a current time vehicle number on the scene, for example, the vehicle numbers on the scene of 10 points of calculating are 50,10 points 01 minute, calculate car on the scene
Number is 70,10 points 02 minute, it is 65 to calculate vehicle number on the scene, then by vehicle number on the scene and the parking lot calculated
It is long to rent exclusive parking stall number (such as 20) addition, the first parking stall of parking lot number at each moment is obtained, each first parking stall number is compared
After take maximum, you can obtain the quasi- parking stall number in the measurement period of one, the parking lot.
Maximum is taken after quasi- parking stall in each measurement period is compared, then calculating obtains the history in the parking lot most
Big parking number, will calculate reality available parking stall number of the history maximum parking number in obtained parking lot as the parking lot and preserves
Get off, referred to for follow-up decision.
, can be according to the specifically chosen different calculating frequency of required precision in practical application, can if required precision is high
So that the higher of frequency setting will be calculated, if required precision is low, the relatively low of frequency setting can will be calculated, can so be improved
Calculating speed and efficiency.
Further, since the data volume of the method processing of the present embodiment is very big, MapReduce can be used to calculate when implementing
The processing such as method or Spark algorithms.MapReduce is mainly used in the high performance parallel computing of large-scale dataset.Current reality
It is now to specify Map (mapping) function, for one group of key-value pair is mapped to one group of new key-value pair, specifies concurrently
Each shared identical key group in Reduce (reduction) function, the key-value pair for ensureing all mappings.Spark is to aim at
Large-scale data processing and the computing engines of Universal-purpose quick designed, Spark has faster speed, ease for use, versatility with
And the characteristics of support multiple resources manager.
So far, flow terminates.
By it is demonstrated experimentally that the total space number calculated using the computational methods of the parking position number of the embodiment of the present invention
Rate of accuracy reached to more than 90%, much larger than 30% or so accuracy rate of prior art.So that the embodiment of the present invention
Technical scheme disclosure satisfy that the regulatory requirement in parking lot, be also convenient for reality available parking stall of the car owner user according to parking lot
Stopped, optimize Consumer's Experience, improve the service level in parking lot.
Fig. 3 is the structured flowchart of the computing device of the parking position number of one embodiment of the invention, referring to Fig. 3, this reality
The computing device 30 of the parking position number of example is applied, including：
Log acquisition module 301, the parking for obtaining the registration of vehicle parking information in parking lot in a measurement period
Journal file；
Data cleansing module 302, for carrying out data cleansing processing to the parklog file；
Judge module 303, for being handled according to data cleansing after parklog file, judge whether the parking lot has
The exclusive parking stall parked for designated vehicle and the exclusive parking stall number when there is exclusive parking stall；
Computing module 304, for the vehicle number or according to the car of marching into the arena of marching into the arena indicated according to the parklog file
Number and the exclusive parking stall number, calculate the quasi- parking stall number in the parking lot in a measurement period, compare each measurement period
The quasi- parking stall number in the interior parking lot, using the maximum of quasi- parking stall number as the parking lot calculated parking stall number.
In one embodiment, data cleansing module 302 does not have license board information specifically for filtering out in parklog file
Record, for remaining record, judge whether each record only marches into the arena information and be then, to stop according to default without information of leaving the theatre
Enter the leaving time that field time determines the vehicle that the record is indicated in car duration and the information of marching into the arena, and be the record
Supplement information of leaving the theatre；
Wherein, the default parking duration is averagely stopped duration or according to institute according to all vehicles in parking lot N days
The average parking duration for entering M days before field time identical stated in the information of marching into the arena of record is determined.
In one embodiment, data cleansing module 302, specifically for according to stopping for respectively being recorded in the parklog file
Car duration, the parking duration respectively recorded and a predetermined threshold value are compared, if greater than or equal to described default
Threshold value, then retain the record, and the record is then filtered out if less than the predetermined threshold value；
Wherein, the predetermined threshold value is the parking duration calculation of all vehicles in a measurement period according to the parking lot
After variance and standard deviation, determined by the standard deviation of three times.
In one embodiment, judge module 303, specifically for being handled according to data cleansing after parklog file in remember
The information of the corresponding predetermined characteristic of load, extraction obtains each recording corresponding characteristic vector in parklog file, by this feature
The grader of vector input training in advance is classified, and is obtained classification results, is determined whether parking lot has confession according to classification results
The exclusive parking stall that designated vehicle is parked.
In one embodiment, computing module 304, specifically for obtain a measurement period in multiple time points it is corresponding enter
Field vehicle number, the vehicle number of marching into the arena is added with the exclusive parking stall number and obtains the time point corresponding first parking stall number, than
Compared with corresponding first parking stall number of each time point in a measurement period, using the first parking stall number maximum as stopping in the measurement period
The quasi- parking stall number in parking lot.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, you can with positioned at a place, or can also be distributed
Onto multiple NEs.Some or all of module therein can be selected to realize the present embodiment side according to the actual needs
The purpose of case.Those of ordinary skill in the art are without creative efforts, you can to understand and implement.
The foregoing is only a specific embodiment of the invention, under the above-mentioned teaching of the present invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of above-described embodiment.It will be understood by those skilled in the art that above-mentioned tool
The purpose of the present invention is simply preferably explained in body description, and protection scope of the present invention is defined by scope of the claims.
Claims (10)
1. a kind of computational methods of parking position number, it is characterised in that this method includes：
Obtain the parklog file of the registration of vehicle parking information in parking lot in a measurement period；
Data cleansing processing is carried out to the parklog file；
Parklog file after being handled according to data cleansing, judges whether the parking lot has for monopolizing that designated vehicle is parked
Parking stall and the exclusive parking stall number when there is exclusive parking stall；
The vehicle number or according to vehicle number and the exclusive parking stall of marching into the arena of marching into the arena indicated according to the parklog file
Number, calculates the quasi- parking stall number in the parking lot in a measurement period,
Compare the quasi- parking stall number in the parking lot each measurement period Nei, regard the maximum of quasi- parking stall number as the parking calculated
The parking stall number of field.
2. according to the method described in claim 1, it is characterised in that data cleansing processing is carried out to the parklog file and is wrapped
Include：
Filtering out does not have the record of license board information in parklog file,
For remaining record, judge each record whether only march into the arena information and without information of leaving the theatre,
It is that then, the field time that enters in default parking duration and the information of marching into the arena determines the vehicle that the record is indicated
Leaving time, and supplement information of leaving the theatre for the record；
Wherein, the default parking duration is averagely stopped duration or according to the note according to all vehicles in parking lot N days
The average parking duration for entering M days before field time identical in the information of marching into the arena of record is determined.
3. method according to claim 2, it is characterised in that data cleansing processing is carried out to the parklog file and is wrapped
Include：
According to the parking duration respectively recorded in the parklog file, by the parking duration respectively recorded and a default threshold
Value is compared,
If greater than or equal to the predetermined threshold value, then retain the record,
The record is then filtered out if less than the predetermined threshold value；
Wherein, the predetermined threshold value is the parking duration calculation variance of all vehicles in a measurement period according to the parking lot
After standard deviation, determined by the standard deviation of three times.
4. according to the method described in claim 1, it is characterised in that the parklog file after being handled according to data cleansing, sentence
Whether the disconnected parking lot has the exclusive parking stall parked for designated vehicle and the exclusive parking stall number when there is exclusive parking stall to include：
The information of the corresponding predetermined characteristic described in parklog file after being handled according to data cleansing, extraction obtains day of stopping
Corresponding characteristic vector is each recorded in will file, the grader that this feature vector is inputted into training in advance is classified, and is obtained
Classification results, determine whether parking lot has the exclusive parking stall parked for designated vehicle and having exclusive parking stall according to classification results
When exclusive parking stall number.
5. according to the method described in claim 1, it is characterised in that the vehicle number of marching into the arena indicated according to the parklog file
Or according to march into the arena vehicle number and the exclusive parking stall number, calculate the quasi- parking stall number bag in the parking lot in a measurement period
Include：
Corresponding vehicle number of marching into the arena of multiple time points in a measurement period is obtained, by vehicle number and the exclusive car of marching into the arena
Digit is added and obtains the time point corresponding first parking stall number,
Compare the corresponding first parking stall number of each time point in a measurement period, the first parking stall number maximum is used as to statistics week
The quasi- parking stall number in parking lot in phase.
6. a kind of computing device of parking position number, it is characterised in that the device includes：
Log acquisition module, the parklog text for obtaining the registration of vehicle parking information in parking lot in a measurement period
Part；
Data cleansing module, for carrying out data cleansing processing to the parklog file；
Judge module, for being handled according to data cleansing after parklog file, judge the parking lot whether have for specify
The exclusive parking stall of storing cycle and the exclusive parking stall number when there is exclusive parking stall；
Computing module, for according to the parklog file indicate march into the arena vehicle number or according to it is described march into the arena vehicle number and
The exclusive parking stall number, calculates the quasi- parking stall number in the parking lot in a measurement period, compares the parking in each measurement period
Quasi- parking stall number, using the maximum of quasi- parking stall number as the parking lot calculated parking stall number.
7. device according to claim 6, it is characterised in that the data cleansing module, specifically for filtering out parking
There is no the record of license board information in journal file, for remaining record, judge each record whether only march into the arena information and without from
Field information, is that then, the field time that enters in default parking duration and the information of marching into the arena determines the car that the record is indicated
Leaving time, and left the theatre information for record supplement；
Wherein, the default parking duration is averagely stopped duration or according to the note according to all vehicles in parking lot N days
The average parking duration for entering M days before field time identical in the information of marching into the arena of record is determined.
8. device according to claim 7, it is characterised in that the data cleansing module, specifically for stopping according to
The parking duration respectively recorded in car journal file, the parking duration respectively recorded and a predetermined threshold value is compared, such as
Fruit is more than or equal to the predetermined threshold value, then retains the record, the record is then filtered out if less than the predetermined threshold value；
Wherein, the predetermined threshold value is the parking duration calculation variance of all vehicles in a measurement period according to the parking lot
After standard deviation, determined by the standard deviation of three times.
9. device according to claim 6, it is characterised in that the judge module, at according to data cleansing
The information of the corresponding predetermined characteristic described in parklog file after reason, extraction obtains each record pair in parklog file
The characteristic vector answered, the grader that this feature vector is inputted into training in advance is classified, and obtains classification results, is tied according to classification
Fruit determines whether parking lot has the exclusive parking stall parked for designated vehicle and the exclusive parking stall number when there is exclusive parking stall.
10. device according to claim 6, it is characterised in that the computing module, specifically for obtaining a statistics week
Corresponding vehicle number of marching into the arena of multiple time points in phase, the vehicle number of marching into the arena is added with the exclusive parking stall number and obtains the time
Point corresponding first parking stall number, compares the corresponding first parking stall number of each time point in a measurement period, by the first parking stall number most
The big quasi- parking stall number being worth as parking lot in the measurement period.
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