CN104376002A - Query method and database for detecting data quality of navigation E-map - Google Patents
Query method and database for detecting data quality of navigation E-map Download PDFInfo
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- CN104376002A CN104376002A CN201310351501.XA CN201310351501A CN104376002A CN 104376002 A CN104376002 A CN 104376002A CN 201310351501 A CN201310351501 A CN 201310351501A CN 104376002 A CN104376002 A CN 104376002A
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Abstract
An embodiment of the invention provides a search method and a database for detecting data quality of a navigation E-map. The method includes: acquiring a detection rule, including search conditions allowing navigation E-map data to be detected to be found, from a rule table of the database; according to the search conditions, finding the corresponding navigation E-map data; according to the detection rule, detecting specific attribute data of the navigation E-map data, and if the specific attribute data meets attribute indexes, determining that the data quality of the navigation E-map data meets target requirements of data quality. The detection rule acquired from the rule table of the database includes different fields; each field contains specific content of the detection rule; the specific attribute data of the navigation E-map data is detected according to the detection rule; if the specific attribute data meets the data quality, the fact that the data quality of the navigation E-map data meets the target requirements of data quality is determined.
Description
Technical field
The present invention relates to electronic map technique, refer to a kind of method and the database that detect the quality of data of map of navigation electronic especially.
Background technology
Automobile market gets more and more to the demand of navigational system, and in navigational system, the quality of data of data in navigation electronic map is the important criterion of map of navigation electronic.
Data in navigation electronic map comprises spatial data and attribute data, and attribute data is as Non-spatial Data, and its quality of data is the important component part of the overall data quality of data in navigation electronic map.For adapting to the customer demand of current navigation application and keeping good navigation effect, attribute data must keep integrality, correctness and Up-to-date state; Integrality refers to that data need comprehensive and systematic reflection objective world, and ensure that data interconnects is that logic is complete, correctness refers to that data need correctly reflect accurately and express objective world, Up-to-date state refers to that data need embody the latest development of objective world timely, ensures data freshness as much as possible.
There are the following problems for prior art: developing the technology of carrying out quality control to the attribute data of data in navigation electronic map is one of challenge run at present.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method detecting the quality of data of map of navigation electronic, solves the defect effectively cannot carrying out quality control in prior art to the quality of data of data in navigation electronic map.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of method detecting the quality of data of map of navigation electronic, be applied to database, method comprises: from the rule list of database, take out a detected rule, described detected rule comprises the search criterion that can find data in navigation electronic map to be detected; Corresponding data in navigation electronic map is found according to described search criterion; Detect according to the specific attribute data of detected rule to data in navigation electronic map, when described specific attribute data meets ATTRIBUTE INDEX, judge that the quality of data of data in navigation electronic map reaches quality of data target call.
Described method, database is ACCESS database specifically.
Described method, in ACCESS database, includes the rule list that at least one that build based on single key element or individual data collection comprises detected rule, or based on the unique rule list comprising detected rule that total factor or full dataset build.
Described method, described detected rule comprises: numbering, key element name, table name, field name, inspect-type, the scope of examination, remarks, major key, wherein, numbering records the number of detected rule, key element name records the concrete constraint condition of data in navigation electronic map or the data set at place, table name records the form name depositing data in navigation electronic map, field name records field relevant to described specific attribute data in data in navigation electronic map, inspect-type records the specific attribute data that should check in data in navigation electronic map, the scope of examination records the ATTRIBUTE INDEX that described specific attribute data should meet, remarks are recorded and be should be noted item, major key is for locating check result corresponding to concrete detected rule and/or audit log.
Described method, when there is multilevel hierarchy or multiple list in data in navigation electronic map, detected rule comprises the traversal rule that can travel through described multilevel hierarchy or multiple list, realizes checking the specific attribute data of the data in navigation electronic map being arranged in multilevel hierarchy or multiple list.
Described method, detected rule comprises the traversal rule that can travel through described multilevel hierarchy or multiple list, specifically comprise: the key element name of described detected rule comprises the concrete constraint condition of data in navigation electronic map, and the table name of described detected rule comprises the form name depositing data in navigation electronic map; The field name of described detected rule comprises field relevant to described specific attribute data in data in navigation electronic map.
Described method, when adopting standard computer language to describe described detected rule, the check result produced for each detected rule and/or audit log, adopt the major key of this detected rule in check result and/or audit log, navigate to the attribute data of makeing mistakes.
A kind of database detecting the quality of data of map of navigation electronic, comprise: detected rule extraction unit, for taking out a detected rule from the rule list of database, described detected rule comprises the search criterion that can find data in navigation electronic map to be detected; Search unit, for finding corresponding data in navigation electronic map according to described search criterion; Detection of attribute unit, for detecting according to the specific attribute data of detected rule to data in navigation electronic map, when described specific attribute data meets ATTRIBUTE INDEX, judges that the quality of data of data in navigation electronic map reaches quality of data target call.
Described database, also comprises: rules customization module, for numbering, and key element name, table name, field name, inspect-type, the scope of examination, remarks, major key, wherein, numbering records the number of detected rule, key element name records the concrete constraint condition of data in navigation electronic map or the data set at place, table name records the form name depositing described data in navigation electronic map, field name records field relevant to described specific attribute data in data in navigation electronic map, inspect-type records the specific attribute data that should check in data in navigation electronic map, the scope of examination records the ATTRIBUTE INDEX that described specific attribute data should meet, remarks are recorded and be should be noted item, major key is for locating check result corresponding to concrete detected rule and/or checking LOG.
Described database, also comprise: service logic unit, for adopting standard computer language, described detected rule is described, the check result produced for each detected rule and/or inspection LOG, adopt the major key of this detected rule in check result and/or audit log, navigate to the attribute data of makeing mistakes.
The beneficial effect of technique scheme of the present invention is as follows: from the rule list of database, take out a detected rule, detected rule comprises different fields, the particular content of detected rule is contained in each field, the specific attribute data of detected rule to data in navigation electronic map is adopted to detect, when judging the quality of data that specific attribute data should reach, judge that the quality of data of data in navigation electronic map reaches quality of data target call.
Accompanying drawing explanation
Fig. 1 represents a kind of method flow schematic diagram detecting the quality of data of map of navigation electronic;
Fig. 2 represents the structural representation of a detected rule;
Fig. 3 represents a kind of structural representation detecting the database of the quality of data of map of navigation electronic.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Data in navigation electronic map comprises spatial data and attribute data, builds and definition detected rule, adopt the quality of data of detected rule to the attribute data of map of navigation electronic to detect in the embodiment of the present invention.
The embodiment of the present invention provides a kind of method detecting the quality of data of map of navigation electronic, as shown in Figure 1, comprising:
Step 101, from the rule list of database, take out a detected rule, described detected rule comprises the search criterion that can find data in navigation electronic map to be detected;
Step 102, finds corresponding data in navigation electronic map according to described search criterion;
Step 103, detects according to the specific attribute data of detected rule to data in navigation electronic map, when described specific attribute data meets ATTRIBUTE INDEX, judges that the quality of data of data in navigation electronic map reaches quality of data target call.
The technology provided is provided, a detected rule is taken out from the rule list of database, detected rule comprises different fields, the particular content of detected rule is contained in each field, the specific attribute data of detected rule to data in navigation electronic map is adopted to detect, when specific attribute data meets ATTRIBUTE INDEX, judge that the quality of data of data in navigation electronic map reaches quality of data target call.
For realizing the technology that embodiment provides, need the rule list building database in a database, in rule list, build detected rule, its process comprises:
Step a, builds rule list in a database, comprises at least one detected rule in rule list;
Step b, arranges the search criterion finding data in navigation electronic map to be detected in detected rule;
Step c, set in detected rule and the specific attribute data of data in navigation electronic map is detected, and the ATTRIBUTE INDEX that specific attribute data should meet, the quality of data of data in navigation electronic map is represented with the quality of data of specific attribute data, if specific attribute data meets ATTRIBUTE INDEX, so represent that the quality of data of data in navigation electronic map reaches quality of data target call.
Database is ACCESS database specifically.
In a preferred embodiment, as shown in Figure 2, detected rule comprises:
Numbering, key element name, table name, field name, inspect-type, the scope of examination, remarks, major key; Wherein,
Numbering records the number of detected rule,
Key element name records the concrete constraint condition of data in navigation electronic map or the data set at place,
Table name records the form name depositing data in navigation electronic map,
Field name records field relevant to described specific attribute data in data in navigation electronic map,
Inspect-type records the specific attribute data that should detect in data in navigation electronic map,
The scope of examination records the ATTRIBUTE INDEX that described specific attribute data should meet,
Remarks are recorded and be should be noted item,
Major key is for locating check result corresponding to concrete detected rule and/or audit log (LOG).
When data in navigation electronic map exists multilevel hierarchy, key element name, table name and field name make detected rule can accurately navigate to corresponding specific attribute data in numerous and diverse data in navigation electronic map.
In a preferred embodiment, also comprise: the partition carrying out showing level to data in navigation electronic map is set in detected rule, and carries out the partition of field level.
The present invention adopts ACCESS database sharing one to comprise the rule list of detected rule,
In a preferred embodiment, in ACCESS database, include the rule list that at least one that build based on single key element or individual data collection comprises detected rule,
Or based on the unique rule list comprising detected rule that total factor or full dataset build.
When building rule list in ACCESS database, data structure/data framework that Primary Reference is applicable to current data in navigation electronic map builds, and data structure/data framework refers to data standard and the standard of data in navigation electronic map.In ACCESS database, for different key elements or data set build rule list, formed with the form of single key element/data set for single table, be convenient to the inspection system and the renewal management mode that build sub-element, or, for total factor or full dataset build a rule list, so build unique one and check system.
In an application scenarios, current data in navigation electronic map comprises following 30 key element/data sets: Road form key element RD, and road hands over limit relational factors TURN_RESTRICTION, Background factors BACK ..., word key element ANNOTATION etc.
When building rule list in ACCESS database, can using key element name as the name of rule list, as RD table, TURN_RESTRICTION shows, and BACK shows ..., ANNOTATION table etc.The detected rule that in RD table, only record is relevant to Road form key element, detected rule realizes traveling through the secondary level of data in navigation electronic map by setting " table name ", " field name ", because table name records the form name depositing data in navigation electronic map, field name records field relevant to described specific attribute data in data in navigation electronic map, therefore, achieve deeper traversal is carried out to the attribute data of data in navigation electronic map.
Also a large rule list can be formed based on total factor/complete or collected works, RD key element is have recorded in large rule list, TURN_RESTRICTION key element, BACK key element, the detected rule of all key elements such as ANNOTATION key element, now, detected rule realizes carrying out deeper traversal to the attribute data of data in navigation electronic map by setting " key element name ", " table name ", " field name ".Large rule list be convenient to design and tissue across the detected rule of key element.
In rule list, key element name can be specifically TURN_RESTRICTION, and table name can be specifically RDF_TIME_DOMAIN, and field name can be specifically TIME_DOMAIN, and the scope of examination can be specifically the codomain of field value non-NULL.If adopt standardized language to describe the scope of examination in a computer, it should combine with the codomain inspection defined in inspect-type and illustrate that the scope of examination is non-NULL (UNNULLABLE).
The attribute data needing to check accurately can be navigated to for making detected rule, detected rule needs the partition supporting to carry out showing level to data in navigation electronic map, and carry out the partition of field level, assist with this and concrete inspect-type of attribute data is positioned.In the table name and field name of detected rule, specifically realize the above-mentioned partition to data in navigation electronic map.
In a preferred embodiment, inspect-type comprises: length check, codomain inspection, quote inspection, association inspection, iterative testing, file checking and/or general inspection.
Length check, checks the length-specific of a certain field;
Codomain checks, checks the codomain scope of specific fields;
Quote inspection, check the adduction relationship of a certain field and other fields, the field that is cited is not in current data in navigation electronic map, and reference data is external data;
Association checks, checks the incidence relation of a certain field and other fields, and associated field need in current data in navigation electronic map, can in essentiality/data set or across key element/data set;
Iterative testing, checks that a certain field or some field can not duplicate;
File checking, checks whether the file name comprised in certain field exists in the file path of specifying;
General inspection, checks whether the unallowable instruction digit in specific fields or all fields, particular table are that sky is shown, whether general purpose table content is consistent.
Other check as reserved expansion inspect-type, can carry out refinement supplement according to the concrete feature of concrete data in navigation electronic map.
Data in each checked field are referred to as attribute data.
Build in the process of rule list, according to the feature of checked data in navigation electronic map, Choice and design inspect-type, as Zipcode field (attribute data) in the Code table in data in navigation electronic map, have recorded China's Mainland domestic all postcode, then can increase length check in detected rule, the scope of examination is then fixed length is 6; Composition as tables all in data in navigation electronic map is necessary for numeral and the English alphabet of half-angle, do not allow and occur any symbol or double byte character, then in detected rule, increase general inspection, the scope of examination is then numeral and the English alphabet that valid character set only includes half-angle, and all contents not in valid character set are all considered as unallowable instruction digit.
In a preferred embodiment, when there is multilevel hierarchy or multiple list in data in navigation electronic map, detected rule comprises the traversal rule that can travel through described multilevel hierarchy or multiple list, realizes detecting the specific attribute data of the data in navigation electronic map being arranged in multilevel hierarchy or multiple list.
In a preferred embodiment, detected rule comprises the traversal rule that can travel through described multilevel hierarchy or multiple list, specifically comprises:
The key element name of described detected rule comprises the concrete constraint condition of data in navigation electronic map,
The table name of described detected rule comprises the form name depositing data in navigation electronic map;
The field name of described detected rule comprises field relevant to described specific attribute data in data in navigation electronic map.
If there is multilevel hierarchy in data in navigation electronic map, namely when the title of attribute data is not unique, need accurately to navigate in multilevel hierarchy the specific fields needing to check, set in detected rule one-level level, secondary level ..., N level level field, the field of these mark multilevel hierarchies is arranged in the key element name of detected rule, table name and field name according to the delamination of attribute data.Make detected rule can navigate to the attribute data needing inspection in data in navigation electronic map, when the title of checked attribute data is unique in data in navigation electronic map, the traversal of one-level level can be only set.
In an application scenarios, only there is a field name in tables all in data in navigation electronic map is Admin_code, only can clearly arrive Admin_code field, after traveling through all field names, necessarily can find this field in detected rule.
If all comprise field Admin_code in 3 table-Nation tables, Admin table and Code tables in data in navigation electronic map, and the Admin_code field contents often opening table is not necessarily identical, just need the table name clearly needing to check, as only checked this field in Admin table, then need clear and definite secondary level in detected rule, the Admin_code field of Admin table.
In a preferred embodiment, when adopting standard computer language to describe described detected rule, the check result produced for each detected rule and/or inspection LOG, adopt the major key of this detected rule to navigate to the attribute data of makeing mistakes in check result and/or inspection LOG.
Major key is used for identifying a certain bar record in check result/inspection LOG uniquely.
As the Code table in certain navigation through electronic data product comprises 3 fields-id field (data sequence number, uniquely), Name field (postcode area name), Zipcode field (postcode), detected rule is responsible for checking whether the length check of Zipcode field is fixed length 6.
Suppose really there is error in data, as there is improper value 1000013 (length is more than 6), now decision error value whether can not be only 1, cannot location of mistake be carried out.The introducing of major key is head it off, and in detected rule, arranging major key is ID+Zipcode, and in check result/inspection LOG, the major key of mistake appears in record, realizes the unique location to improper value.
In an application scenarios, develop corresponding unit module based on the detected rule recorded in ACCESS database, unit module reads the detected rule in ACCESS database, checks the attribute data of data in navigation electronic map.
Unit module, locates by reading the hierarchical structures such as key element name, table name and field name in each detected rule the data in navigation electronic map needing to check.
The refinement of checking module selection and the scope of examination is carried out by reading " inspect-type " and " scope of examination ", as being clearly that " length check " then calls corresponding length check module in inspect-type, now reading " scope of examination " is 6, then in length check module basis, carry out the inspection that fixed length is 6; As being clearly that " quoting inspection " is then called and quoted the judgement that checking module carries out reference data accordingly in inspect-type, now continuing to read " scope of examination " is RDF.ADMIN.ZIPCODE, then quote continuation reading external data on checking module, need the ZIPCODE field of the ADMIN table quoting outside RDF data to check.
" remarks " field is then the reserved field of detected rule, certain supplementing can be carried out to the scope of examination, be particularly useful for " inspect-type " and " scope of examination " two fields and coordinate the detected rule completely that is still beyond expression, as in codomain inspection, the codomain content of examined field is too much, can continue to carry out supplementing of the scope of examination by " remarks " field.
" major key " field makes detected rule can locate the specific record of a certain bar uniquely in check result/inspection LOG.So, the quick inspection system being applicable to any attribute data content has been constructed.
The embodiment of the present invention provides a kind of database detecting the quality of data of map of navigation electronic, as shown in Figure 3, comprising:
Detected rule extraction unit 301, for taking out a detected rule from the rule list of database, described detected rule comprises the search criterion that can find data in navigation electronic map to be detected;
Search unit 302, for finding corresponding data in navigation electronic map according to described search criterion;
Detection of attribute unit 303, for detecting according to the specific attribute data of detected rule to data in navigation electronic map, when described specific attribute data meets ATTRIBUTE INDEX, judges that the quality of data of data in navigation electronic map reaches quality of data target call.
For realizing the technology that embodiment provides, needing the rule list building database in a database, in rule list, building detected rule, also comprising in database for this reason:
Detected rule construction unit, for building rule list in a database, comprises at least one detected rule in rule list;
Detected rule positioning unit, for arranging the search criterion finding data in navigation electronic map to be detected in detected rule;
Detected rule edit cell, for setting in detected rule, the specific attribute data of data in navigation electronic map is detected, and the ATTRIBUTE INDEX that specific attribute data should meet, the quality of data of data in navigation electronic map is represented with the quality of data of specific attribute data, if specific attribute data meets ATTRIBUTE INDEX, so represent that the quality of data of data in navigation electronic map reaches quality of data target call.
In a preferred embodiment, specifically ACCESS database.
In a preferred embodiment, detected rule construction unit comprises:
Rules customization module, for numbering, key element name, table name, field name, inspect-type, the scope of examination, remarks, major key; Wherein,
Numbering records the number of detected rule,
Key element name records the concrete constraint condition of data in navigation electronic map or the data set at place,
Table name records the form name depositing described data in navigation electronic map,
Field name records field relevant to described specific attribute data in data in navigation electronic map,
Inspect-type records the specific attribute data that should check in data in navigation electronic map,
The scope of examination records the ATTRIBUTE INDEX that described specific attribute data should meet,
Remarks are recorded and be should be noted item,
Major key is for locating check result corresponding to concrete detected rule and/or checking LOG.
In a preferred embodiment, also comprise:
Service logic unit, for adopting standard computer language, described detected rule is described, the check result produced for each detected rule and/or inspection LOG, adopt the major key of this detected rule in check result and/or audit log, navigate to the attribute data of makeing mistakes.
A kind of database detecting the quality of data of map of navigation electronic provided, as realizing detected rule extraction unit 301, search unit 302, the carrier of detection of attribute unit 303 and the function described in other unit modules, it is of equal value for should be understood to having the device of identical function or equipment or system, in other words, if there is a kind of device or equipment also can be supported to realize described detected rule extraction unit 301, search unit 302, detection of attribute unit 303 and the function described in other unit modules, so be above-mentioned a kind of database detecting the quality of data of map of navigation electronic.
Advantage after employing this programme is: build detected rule, detected rule exists in the mode comprising different field in a database, the particular content of detected rule is set in each field, according to detected rule, data in navigation electronic map is traveled through, in ergodic process, quality control is carried out to the quality of data of data in navigation electronic map.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. detect a method for the quality of data of map of navigation electronic, be applied to database, it is characterized in that, method comprises:
From the rule list of database, take out a detected rule, described detected rule comprises the search criterion that can find data in navigation electronic map to be detected;
Corresponding data in navigation electronic map is found according to described search criterion;
Detect according to the specific attribute data of detected rule to data in navigation electronic map, when described specific attribute data meets ATTRIBUTE INDEX, judge that the quality of data of data in navigation electronic map reaches quality of data target call.
2. method according to claim 1, is characterized in that, database is ACCESS database specifically.
3. method according to claim 2, is characterized in that, in ACCESS database, includes the rule list that at least one that build based on single key element or individual data collection comprises detected rule,
Or based on the unique rule list comprising detected rule that total factor or full dataset build.
4. method according to claim 1, is characterized in that, described detected rule comprises:
Numbering, key element name, table name, field name, inspect-type, the scope of examination, remarks, major key; Wherein,
Numbering records the number of detected rule,
Key element name records the concrete constraint condition of data in navigation electronic map or the data set at place,
Table name records the form name depositing data in navigation electronic map,
Field name records field relevant to described specific attribute data in data in navigation electronic map,
Inspect-type records the specific attribute data that should check in data in navigation electronic map,
The scope of examination records the ATTRIBUTE INDEX that described specific attribute data should meet,
Remarks are recorded and be should be noted item,
Major key is for locating check result corresponding to concrete detected rule and/or audit log.
5. method according to claim 1, it is characterized in that, when there is multilevel hierarchy or multiple list in data in navigation electronic map, detected rule comprises the traversal rule that can travel through described multilevel hierarchy or multiple list, realizes checking the specific attribute data of the data in navigation electronic map being arranged in multilevel hierarchy or multiple list.
6. method according to claim 5, is characterized in that, detected rule comprises the traversal rule that can travel through described multilevel hierarchy or multiple list, specifically comprises:
The key element name of described detected rule comprises the concrete constraint condition of data in navigation electronic map,
The table name of described detected rule comprises the form name depositing data in navigation electronic map;
The field name of described detected rule comprises field relevant to described specific attribute data in data in navigation electronic map.
7. method according to claim 1, is characterized in that,
When adopting standard computer language to describe described detected rule, the check result produced for each detected rule and/or audit log, adopt the major key of this detected rule in check result and/or audit log, navigate to the attribute data of makeing mistakes.
8. detect a database for the quality of data of map of navigation electronic, it is characterized in that, comprising:
Detected rule extraction unit, for taking out a detected rule from the rule list of database, described detected rule comprises the search criterion that can find data in navigation electronic map to be detected;
Search unit, for finding corresponding data in navigation electronic map according to described search criterion;
Detection of attribute unit, for detecting according to the specific attribute data of detected rule to data in navigation electronic map, when described specific attribute data meets ATTRIBUTE INDEX, judges that the quality of data of data in navigation electronic map reaches quality of data target call.
9. database according to claim 8, is characterized in that, also comprises:
Rules customization module, for numbering, key element name, table name, field name, inspect-type, the scope of examination, remarks, major key; Wherein,
Numbering records the number of detected rule,
Key element name records the concrete constraint condition of data in navigation electronic map or the data set at place,
Table name records the form name depositing described data in navigation electronic map,
Field name records field relevant to described specific attribute data in data in navigation electronic map,
Inspect-type records the specific attribute data that should check in data in navigation electronic map,
The scope of examination records the ATTRIBUTE INDEX that described specific attribute data should meet,
Remarks are recorded and be should be noted item,
Major key is for locating check result corresponding to concrete detected rule and/or checking LOG.
10. database according to claim 8, is characterized in that, also comprises:
Service logic unit, for adopting standard computer language, described detected rule is described, the check result produced for each detected rule and/or inspection LOG, adopt the major key of this detected rule in check result and/or audit log, navigate to the attribute data of makeing mistakes.
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| CN105701199A (en) * | 2016-01-08 | 2016-06-22 | 广东电网有限责任公司信息中心 | Method and device for detecting data quality of data dependence |
| CN106991103A (en) * | 2016-01-21 | 2017-07-28 | 北京四维图新科技股份有限公司 | The inspection method and automotive engine system of a kind of navigation data file |
| CN107346311A (en) * | 2016-05-05 | 2017-11-14 | 高德软件有限公司 | A kind of electronic map data inspection method and device |
| CN108204819A (en) * | 2016-12-19 | 2018-06-26 | 北京四维图新科技股份有限公司 | A kind of map datum automatic testing method and device and hybrid navigation system |
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| CN111611329A (en) * | 2019-02-26 | 2020-09-01 | 阿里巴巴集团控股有限公司 | Map data inspection implementation method, device and equipment |
| CN111858543A (en) * | 2019-04-26 | 2020-10-30 | 中国移动通信集团河北有限公司 | Quality evaluation method and device of commercial map and computing equipment |
| WO2021164708A1 (en) * | 2020-02-17 | 2021-08-26 | 商汤集团有限公司 | Method and device for detecting map calibration error |
| CN115221151A (en) * | 2022-07-13 | 2022-10-21 | 小米汽车科技有限公司 | Vehicle data transmission method and device, vehicle, storage medium and chip |
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| CN108204819A (en) * | 2016-12-19 | 2018-06-26 | 北京四维图新科技股份有限公司 | A kind of map datum automatic testing method and device and hybrid navigation system |
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| CN111507080B (en) * | 2020-03-18 | 2023-06-23 | 北京百度网讯科技有限公司 | Data quality inspection method and device, electronic equipment and storage medium |
| CN115221151A (en) * | 2022-07-13 | 2022-10-21 | 小米汽车科技有限公司 | Vehicle data transmission method and device, vehicle, storage medium and chip |
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