CN103699680A - Bus real-time geographic information data cleaning method and system - Google Patents
Bus real-time geographic information data cleaning method and system Download PDFInfo
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- CN103699680A CN103699680A CN201310753688.6A CN201310753688A CN103699680A CN 103699680 A CN103699680 A CN 103699680A CN 201310753688 A CN201310753688 A CN 201310753688A CN 103699680 A CN103699680 A CN 103699680A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
- G06F16/215—Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
Abstract
The invention relates to the technical field of intelligent buses and provides a bus real-time geographic information data cleaning method and system. The method includes: under an initial state, building a basic data table according to real-time data; correcting data records arriving continuously in real time according to the basic data table; dynamically updating the basic data table; wherein the basic data table saves the historical information of various data records in real-time data. By the method, reliable and real-time cleaning of the real-time bus geographic information data is achieved, and foundation is laid on bus data real-time calculation.
Description
[technical field]
The present invention relates to intelligent bus technical field, particularly relate to a kind of bus real-time geographic information Data Cleaning Method and system.
[background technology]
The quantity rapid growth of urban automobile in recent years, has caused many such as traffic congestion, parking difficulty, the go on a journey problem of quality of common people that has a strong impact on such as difficult of calling a taxi.Meanwhile, the transportation network in city is also increasingly sophisticated, more and more higher to the requirement of a perfect management system.In future, build in the blueprint of intelligent city, intelligent transportation is the most important thing.
The foundation that the arrival of large data age is intelligent transportation provides an opportunity, and wherein the use value of bus data is huge.Due to bus, be one of the main stream traffic instrument in city, the calculating of bus real time data can provide the prediction of arriving at a station for citizen, the many services of prediction consuming time.Further, bus travel route is fixed, and bus real time data can be for calculating the real-time road of road.Yet, due to equipment deficiency and the odjective cause such as network signal is unstable, bus data have usually comprised a lot of abnormal positional informations and status information, greatly disturbed the accuracy of the real-time calculating of bus data, therefore, the correct calculating in real time of bus geographic information data is depended on to a great extent and how effectively and is in real time carried out data cleansing.
Bus geographic information data mainly contains following characteristics:
(1) data volume is large, and due to bus One's name is legion, the data volume of generation per second is huge, so these data can be correctly cleaned in requirement rapidly;
(2) abnormal data is complicated, GPS (Global Positioning System, GPS) device category is numerous, be subject to the precision of satnav, multiple objective and unpredictable factor impacts such as the restriction of positioning equipment, network signals, cause existing in data a large amount of unpredictable data, abnormal data of a great variety, so requirement can correctly be identified and revise, and these are abnormal.
Existing common method is kept at the data that receive in storage medium, by background processing unit, is revised in bulk at interval at a fixed time.Data because prior art is used batch processing to receive in real time, have following defect: 1, cannot make full use of real-time computing, cause later stage calculated amount huge; 2, cannot use dynamic information combination to become priori to carry out intelligence correction to data.
Given this, overcoming the existing defect of above-mentioned prior art is the art problem demanding prompt solution.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of bus real-time geographic information Data Cleaning Method and system, to realize, the reliable of real-time bus geographic information data is cleaned in real time, for the real-time calculating of bus data provides basis.
The present invention adopts following technical scheme:
A bus real-time geographic information Data Cleaning Method, comprises the steps:
Under original state, according to real time data, set up base data table, described base data table is preserved the historical information of Various types of data record in real time data;
Based on described base data table, revise in real time the data recording constantly arriving;
Dynamically update described base data table.
Further, the described step based on the described base data table data recording that correction constantly arrives in real time specifically comprises:
The data recording of using base data table correction constantly to arrive, abandons the data recording that finally still cannot revise, and suitably revises base data table to guarantee data consistency.
Further, described according to real time data set up the step of base data table, the step of revising in real time the step of the data recording constantly arriving and dynamically updating described base data table based on described base data table is carried out according to specific mechanism is collaborative by a plurality of threads or process, between described thread or process, by order-assigned method or Hash distribution method, carries out data allocations.
Further, described order-assigned method is distributed to each thread or process successively according to the arrival order of data, guarantees that the data volume that each thread or process receive is in the same size;
Described Hash distribution method, according to a plurality of specified attribute of data, is calculated the cryptographic hash of described data, the thread or the process that according to the result of calculation of cryptographic hash %m, decide data to be distributed, and wherein m is Thread Count or process number.
Further, in described base data table, each list item is a key-value structure, wherein key has recorded a kind of particular data record attribute, value has preserved the historical information of the data recording of such particular community, described historical information is for revising data recording abnormal of such particular community, and described base data table has a plurality of.
Further, under described original state, the step of setting up base data table according to real time data is specially: user uses existing knowledge to set up base data table;
The described step that dynamically updates described base data table is specially: according to real-time normal data record, dynamically update described base data table, described normal data record comprises the abnormal data record being corrected.
The present invention also provides a kind of bus real-time geographic information Data clean system, comprising:
Base data table maintenance module, described base data table maintenance module sets up and dynamically updates base data table according to real time data, and described base data table is preserved the historical information of Various types of data record in real time data;
The real-time correcting module of data, the real-time correcting module of described data revises based on base data table the data recording constantly arriving in real time.
Further, the data recording that the real-time correcting module of described data is used base data table correction constantly to arrive, abandons the data recording that finally still cannot revise, and suitably revises base data table to guarantee data consistency.
Further, described base data table maintenance module and the real-time correcting module of data are carried out according to specific mechanism is collaborative by a plurality of threads or process, between the thread of each inside modules or process, by order-assigned method or Hash distribution method, carry out data allocations.
Further, described order-assigned method is distributed to each thread or process successively according to the arrival order of data, guarantees that the data volume that each thread or process receive is in the same size;
Described Hash distribution method, according to a plurality of specified attribute of data, is calculated the cryptographic hash of described data, the thread or the process that according to the result of calculation of cryptographic hash %m, decide data to be distributed, and wherein m is Thread Count or process number.
Further, in described base data table, each list item is a key-value structure, wherein key has recorded a kind of particular data record attribute, value has preserved the historical information of the data recording of such particular community, described historical information is for revising data recording abnormal of such particular community, and described base data table has a plurality of;
During original state, base data table is used existing knowledge to set up by user, in subsequent process, base data table maintenance module dynamically updates described base data table according to real-time normal data record, and described normal data record comprises by the abnormal data record of the real-time correcting module correction of data.
Compared with prior art, beneficial effect of the present invention is: the present invention can carry out clearing up and revising in real time and reliably to magnanimity real-time bus geographic information data, the correctness requirement of calculating to meet data, for the real-time calculating of bus data provides basis, its calculating scale can be expanded, strong robustness.
[accompanying drawing explanation]
Fig. 1 is the bus real-time geographic information Data Cleaning Method process flow diagram of the embodiment of the present invention;
Fig. 2 is the bus real-time geographic information Data clean system structured flowchart of the embodiment of the present invention;
Fig. 3 is two kinds of modification method schematic diagram of line_id;
Fig. 4 is a kind of modification method schematic diagram of bus_pos;
Fig. 5 is five kinds of modification method schematic diagram of cur_station;
Fig. 6 is four kinds of modification method schematic diagram of next_station.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In addition,, in each embodiment of described the present invention, involved technical characterictic just can not combine mutually as long as do not form each other conflict.
As shown in Figure 1, the embodiment of the present invention provides a kind of bus real-time geographic information Data Cleaning Method, comprises the steps:
Step S10: under original state, set up base data table (Base Data Table, BDT) according to real time data, base data table BDT preserves the historical information of Various types of data record in real time data;
Particularly, base data table BDT is stored in a database, wherein each list item is a key-value structure, wherein key has recorded a kind of particular data record attribute, value has preserved the historical information of the data recording of such particular community, this historical information is for revising data recording abnormal of such particular community, and base data table BDT has a plurality of.User can use existing knowledge to set up base data table BDT.
Step S20: revise in real time the data recording constantly arriving based on base data table BDT;
Particularly, use base data table BDT to revise the data recording constantly arriving, abandon the data recording that finally still cannot revise, and suitably revise base data table BDT to guarantee data consistency.
Step S30: dynamically update base data table BDT.
Particularly, according to real-time normal data record, dynamically update base data table BDT, normal data record comprises the abnormal data record being corrected.
Step S10-S30 all can be carried out according to specific mechanism is collaborative by a plurality of threads or process, between thread or process, by order-assigned method or Hash distribution method, carries out data allocations.Order-assigned method is distributed to each thread or process successively according to the arrival order of data, guarantees that the data volume that each thread or process receive is in the same size; Hash distribution method is according to a plurality of specified attribute of data, the cryptographic hash of computational data, and the thread or the process that according to the result of calculation of cryptographic hash %m, decide data to be distributed, wherein m is Thread Count or process number.
As shown in Figure 2, the embodiment of the present invention also provides a kind of bus real-time geographic information Data clean system, and it comprises base data table maintenance module 10 and the real-time correcting module 20 of data.Base data table maintenance module 10 sets up and dynamically updates base data table BDT according to real time data, base data table BDT preserves the historical information of Various types of data record in real time data; The real-time correcting module 20 of data revises based on base data table BDT the data recording constantly arriving in real time, particularly, the real-time correcting module 20 of data is used base data table BDT to revise the data recording constantly arriving, abandon the data recording that finally still cannot revise, and suitably revise base data table BDT to guarantee data consistency.
The real-time correcting module 20 of base data table maintenance module 10 and data is carried out according to specific mechanism is collaborative by a plurality of threads or process, between the thread of each inside modules or process, by order-assigned method or Hash distribution method, carries out data allocations.Order-assigned method is distributed to each thread or process successively according to the arrival order of data, guarantees that to greatest extent the data volume that each thread or process receive is in the same size; Hash distribution method is according to a plurality of specified attribute of data, the cryptographic hash HashValue of computational data, and the thread or the process that according to the result of calculation of HashValue%m, decide data to be distributed, wherein m is Thread Count or process number.
In a preferred embodiment, base data table maintenance module 10 is used Hash distribution method, distribute received data to each thread or the thread of this module, the real-time correcting module 20 of data is used order-assigned method, distributes received data to each thread or the thread of this module.
In base data table BDT, each list item is a key-value structure, wherein key has recorded a kind of particular data record attribute, value has preserved the historical information of the data recording of such particular community, this historical information is for revising data recording abnormal of such particular community, according to concrete correction algorithm, can there be a plurality of base data table BDT.During original state, base data table BDT can be used existing knowledge to set up by user, in subsequent process, base data table maintenance module 10 dynamically updates base data table BDT according to real-time normal data record, and normal data record comprises the abnormal data record of having been revised by the real-time correcting module 20 of data.
Below by a preferred embodiment, the present invention is described in detail further:
In the present embodiment, for concise and to the point description, the bus real-time geographic information data recording bus_record of multidimensional be reduced to a five-tuple bus_id, line_id, bus_pos, cur_station, next_station}, wherein:
Bus_id is bus id;
Line_id is the current circuit id carrying out of this bus;
Bus_pos is the gps coordinate of this bus;
Cur_station is website id or a upper website id at this current place of bus;
The website id that next_station will go to for this bus.
If the travel route of whole buses is abstracted into a non-directed graph TransportGraph, each website is a node N in TransportGraph, N
iand N
jadjacent meaning exists a bus routes to sail through N successively
iand N
j, and claim N
iand N
jbetween exist and connect edge.
At system initialization node, base data table BDT will be established, and comprises line information table lineinfotb, site information table stationinfotb, and adjacent sites table neighborstb, these three tables have built TransportGraph in logic.Bus log sheet buslogtb, website log sheet stationlogtb, path log sheet edgelogtb.Wherein:
Each list item of line information table lineinfotb is a key-value structure, and key is circuit id, value be this circuit by way of website id.
Each list item of site information table stationinfotb is a key-fields structure, and key is website id, and fields is { gps coordinate, site name }.
Each list item of adjacent sites table neighborstb is a key-set structure, and key is website id, and set is other websites id set that this website is adjacent
Each list item of bus log sheet buslogtb is a key-list structure, and key is bus id, list be this bus by way of website id.
Each list item of website log sheet stationlogtb is a key-list structure, and key is website id, the bus id that list has sent for this website.
Each list item of path log sheet edgelogtb is a key-list structure, and key is " website id1 – website id2 ", and list is for driving to the bus id of id2 from id1.
Real-time data record will constantly be inputted the real-time correcting module 20 of data, and inside modules is used the mode distributing data of order-assigned to record to different threads or process.For a data recording bus_id, line_id, bus_pos, cur_station, next_station}, if there is illegal field, the real-time correcting module of data 20 can be used as these fields of method correction of Fig. 3-Fig. 6.As shown in Figure 3, two kinds of modification methods of line_id represent that line_id can be derived and be drawn by two kinds of modes, and first kind of way is with cur_station and next_station, based on Back ground Information table lineinfotb, derives and draws; The second way is to derive and draw based on Back ground Information table buslogtb with bus_id, and derivation method and the method in Fig. 3 in Fig. 4-Fig. 6 are similar, repeat no more herein.If field correction proves an abortion, this data recording can be dropped.
The real-time correcting module 20 of data will be to the normal data recording of base data table maintenance module 10 output (comprising the normal data record of having revised), the method that base data table maintenance module 10 can be used Hash to distribute distributes received data to each thread or the process of this module, each thread and process can dynamically update bus log sheet buslogtb according to the information of data recording, website log sheet stationlogtb, path log sheet edgelogtb, wherein:
Bus log sheet buslogtb: upgrade the list item that this table key is bus_id, cur_station is placed on to the afterbody of this list item list.
Website log sheet stationlogtb: upgrade the list item that this table key is cur_station, bus_id is placed on to the afterbody of this performance list.
Path log sheet edgelogtb: upgrade the list item that this table key is " cur_station-next_station ", bus_id is put into the afterbody of this list item list.
experimental verification:
Use Storm streaming computational tool to realize the present invention, handled real time data derives from the real-time bus geographic position data in 5000 of Shenzhen, 500 data recording of reception per second, adopt 2 physical nodes, the Thread Count that in structure, modules is used is: the real-time correcting module of data (4), base data table maintenance module (4), the database of having stored base data table has been used redis memory database.
The embodiment of the present invention can carry out clearing up and revising in real time and reliably to magnanimity real-time bus geographic information data, the correctness requirement of calculating to meet data, for the real-time calculating of bus data provides basis, its calculating scale can be expanded, strong robustness.
What deserves to be explained is, the contents such as the information interaction between said apparatus and intrasystem module, unit, implementation, based on same design, the particular content of system and method is the narration in reference example mutually with disposal route embodiment of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of embodiment is to come the hardware that instruction is relevant to complete by program, this program can be stored in a computer-readable recording medium, storage medium can comprise: ROM (read-only memory) (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a bus real-time geographic information Data Cleaning Method, is characterized in that, comprises the steps:
Under original state, according to real time data, set up base data table, described base data table is preserved the historical information of Various types of data record in real time data;
Based on described base data table, revise in real time the data recording constantly arriving;
Dynamically update described base data table.
2. bus real-time geographic information Data Cleaning Method as claimed in claim 1, is characterized in that, the described step based on the described base data table data recording that correction constantly arrives in real time specifically comprises:
The data recording of using base data table correction constantly to arrive, abandons the data recording that finally still cannot revise, and suitably revises base data table to guarantee data consistency.
3. bus real-time geographic information Data Cleaning Method as claimed in claim 1, it is characterized in that, described according to real time data set up the step of base data table, the step of revising in real time the step of the data recording constantly arriving and dynamically updating described base data table based on described base data table is carried out according to specific mechanism is collaborative by a plurality of threads or process, between described thread or process, by order-assigned method or Hash distribution method, carries out data allocations.
4. bus real-time geographic information Data Cleaning Method as claimed in claim 3, it is characterized in that, described order-assigned method is distributed to each thread or process successively according to the arrival order of data, guarantees that the data volume that each thread or process receive is in the same size;
Described Hash distribution method, according to a plurality of specified attribute of data, is calculated the cryptographic hash of described data, the thread or the process that according to the result of calculation of cryptographic hash %m, decide data to be distributed, and wherein m is Thread Count or process number.
5. bus real-time geographic information Data Cleaning Method as claimed in claim 1, it is characterized in that, in described base data table, each list item is a key-value structure, wherein key has recorded a kind of particular data record attribute, value has preserved the historical information of the data recording of such particular community, described historical information is for revising data recording abnormal of such particular community, and described base data table has a plurality of.
6. bus real-time geographic information Data Cleaning Method as claimed in claim 1, is characterized in that, under described original state, the step of setting up base data table according to real time data is specially: user uses existing knowledge to set up base data table;
The described step that dynamically updates described base data table is specially: according to real-time normal data record, dynamically update described base data table, described normal data record comprises the abnormal data record being corrected.
7. a bus real-time geographic information Data clean system, is characterized in that, comprising:
Base data table maintenance module, described base data table maintenance module sets up and dynamically updates base data table according to real time data, and described base data table is preserved the historical information of Various types of data record in real time data;
The real-time correcting module of data, the real-time correcting module of described data revises based on base data table the data recording constantly arriving in real time.
8. bus real-time geographic information Data clean system as claimed in claim 7, it is characterized in that, the data recording that the real-time correcting module of described data is used base data table correction constantly to arrive, abandon the data recording that finally still cannot revise, and suitably revise base data table to guarantee data consistency.
9. bus real-time geographic information Data clean system as claimed in claim 7, it is characterized in that, described base data table maintenance module and the real-time correcting module of data are carried out according to specific mechanism is collaborative by a plurality of threads or process, between the thread of each inside modules or process, by order-assigned method or Hash distribution method, carry out data allocations.
10. bus real-time geographic information Data clean system as claimed in claim 9, it is characterized in that, described order-assigned method is distributed to each thread or process successively according to the arrival order of data, guarantees that the data volume that each thread or process receive is in the same size;
Described Hash distribution method, according to a plurality of specified attribute of data, is calculated the cryptographic hash of described data, the thread or the process that according to the result of calculation of cryptographic hash %m, decide data to be distributed, and wherein m is Thread Count or process number.
11. bus real-time geographic information Data clean systems as claimed in claim 7, it is characterized in that, in described base data table, each list item is a key-value structure, wherein key has recorded a kind of particular data record attribute, value has preserved the historical information of the data recording of such particular community, described historical information is for revising data recording abnormal of such particular community, and described base data table has a plurality of;
During original state, base data table is used existing knowledge to set up by user, in subsequent process, base data table maintenance module dynamically updates described base data table according to real-time normal data record, and described normal data record comprises by the abnormal data record of the real-time correcting module correction of data.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104331824A (en) * | 2014-08-29 | 2015-02-04 | 深圳先进技术研究院 | Transaction system and method of bus real-time position data |
| CN104796856A (en) * | 2014-07-15 | 2015-07-22 | 北京东方车云信息技术有限公司 | System and method for correcting get-on position in electronic map based on passenger taxi-calling historic data |
| CN107945560A (en) * | 2017-12-21 | 2018-04-20 | 大连海事大学 | A kind of public transport smart electronics stop sign information display control method and system |
| CN112398939A (en) * | 2020-11-09 | 2021-02-23 | 温州市气象局 | Partitioned meteorological intelligent early warning platform based on communication signaling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050262190A1 (en) * | 2003-08-27 | 2005-11-24 | Ascential Software Corporation | Client side interface for real time data integration jobs |
| CN103064974A (en) * | 2013-01-10 | 2013-04-24 | 东南大学 | Method for cleaning traffic flow data on basis of time-space analysis |
| CN103247177A (en) * | 2013-05-21 | 2013-08-14 | 清华大学 | Large-scale road network traffic flow real-time dynamic prediction system |
-
2013
- 2013-12-31 CN CN201310753688.6A patent/CN103699680A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050262190A1 (en) * | 2003-08-27 | 2005-11-24 | Ascential Software Corporation | Client side interface for real time data integration jobs |
| CN103064974A (en) * | 2013-01-10 | 2013-04-24 | 东南大学 | Method for cleaning traffic flow data on basis of time-space analysis |
| CN103247177A (en) * | 2013-05-21 | 2013-08-14 | 清华大学 | Large-scale road network traffic flow real-time dynamic prediction system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796856A (en) * | 2014-07-15 | 2015-07-22 | 北京东方车云信息技术有限公司 | System and method for correcting get-on position in electronic map based on passenger taxi-calling historic data |
| CN104796856B (en) * | 2014-07-15 | 2018-07-10 | 北京东方车云信息技术有限公司 | It is called a taxi the system and method that historical data is modified boarding position in electronic map based on passenger |
| CN104331824A (en) * | 2014-08-29 | 2015-02-04 | 深圳先进技术研究院 | Transaction system and method of bus real-time position data |
| CN107945560A (en) * | 2017-12-21 | 2018-04-20 | 大连海事大学 | A kind of public transport smart electronics stop sign information display control method and system |
| CN112398939A (en) * | 2020-11-09 | 2021-02-23 | 温州市气象局 | Partitioned meteorological intelligent early warning platform based on communication signaling |
| CN112398939B (en) * | 2020-11-09 | 2023-04-07 | 温州市气象局 | Partitioned meteorological intelligent early warning platform based on communication signaling |
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Application publication date: 20140402 |