CN115422887A

CN115422887A - National passenger station coding system and method

Info

Publication number: CN115422887A
Application number: CN202110412138.2A
Authority: CN
Inventors: 周艳龙; 胡刚; 解超
Original assignee: China Transport Information Co ltd
Current assignee: China Transport Information Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-12-02

Abstract

The invention discloses a nationwide passenger station coding system and a nationwide passenger station coding method, wherein the passenger stations comprise road passenger stations, passenger airports, railway stations, ports, urban road bus stations and urban rail transit stations. The coding system aims to solve the problem of unified coding of national passenger stations, improve the interconnection and intercommunication capacity among different types of passenger stations, different traffic modes and different forms of passenger stations and the interconnection and intercommunication capacity between passengers, provide guarantee for national passenger transport integration, and need to add regional information and accurate position information.

Description

National passenger station coding system and method

Technical Field

The invention discloses a national passenger station coding system and a method, belongs to the application of geographic information technology and computer technology in the field of transportation, is suitable for unified coding of national passenger stations, and provides interconnection and intercommunication for various passenger transportation modes.

Background

The position information, the name information and the address information of various passenger stations such as passenger station roads, passenger stations, airports, railway stations, ports, urban road bus stations and urban rail transit stations which are used as hubs for connecting various transportation modes are directly related to the convenience and smoothness of the passenger joint transportation. Particularly, the development of the road passenger stations is more disordered due to historical reasons and practical use reasons, and partial areas are separated from the outside due to specific development and use reasons.

At present, link information confusion of all national transportation modes passenger stations, passenger station information confusion, especially, road passenger station information is particularly serious, and the main phenomenon is as follows: (1) the site address contains a specific road name does not exist. Such as: anhui Anqing central station address: the three-bristle cudrania mountain road and the three-bristle cudrania mountain road are intersected, wherein the three-bristle cudrania mountain road does not exist; and (2) the site address is contained in the site name. Such as: the address of the automobile passenger station in the fat country in Hebei province, in the automobile station in Handan city in the fat country in Hebei province; long-distance bus stop address of Yuyao Zhejiang: yuyao high-speed railway north station coach station. The information is invalid and cannot provide a specific address location; and (3) the site address range is overlarge. Such as: address of Cixi Xinpu station, zhejiang: new North road of Xiangxi city, new Pushui Xiangcun Cinnamomum camphora; xiao county bus stop address of ann hui: 311, near national road; and (4) site name confusion exists. If the Anqing central station: the Anqing passenger center, the Anqing passenger station, the Anqing automobile passenger center station, the Anqing highway passenger center station and the like; particularly, the water-balancing passenger station (a passenger station, a south station and a passenger station) is opposite to the water-balancing passenger station, namely the north station.

Therefore, the need is to break through the situation that the traditional passenger station codes do not include the link transport connection function, the information of various passenger stations is thoroughly duplicated, the position information of the passenger stations is highly accurately positioned, and the codes of various passenger stations are unified.

Disclosure of Invention

The purpose of the invention is: aiming at the problems in the prior art, the invention provides a nationwide passenger station coding system, a passenger station coder, a coding method and a geographical structure rasterization method, which can realize the functions of providing the accurate position of a passenger station, providing the accurate address of the passenger station, the interconnectivity with passengers and the interconnectivity of different passenger stations according to the traffic modes, realize the unification of the passenger station coding systems of different traffic modes, and improve the efficiency of the association of various passenger station information cross-mode cross-region cross-system cross-platform.

The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme:

a national passenger station coding scheme comprising:

the passenger station information function module is used for collecting and storing passenger station information, the passenger station information comprises names, longitude and latitude coordinates, word addresses, regional boundary vector data, administrative divisions and traffic modes, and the collection is carried out through two modes, namely active collection: the method comprises the steps that a website is disclosed by each traffic mode administrative department, geographic information data are disclosed by each city information public network, a main public website is operated by each traffic mode, data capture and analysis are actively carried out in a timed task mode, and basic information data of a passenger station are obtained; the second mode is passive collection, which applies to each level of traffic mode administrative department to obtain the corresponding passenger stations of the corresponding obtained traffic modes through a normative information public channel, the nationwide provincial and regional road passenger platforms regularly provide passenger station information to the nationwide road passenger networking ticketing system, and when the passenger station information changes, the changed data is regularly and actively uploaded to the nationwide road passenger networking ticketing system through an information exchange channel; the storage needs to mark passenger station information sources, information generation time or recording sequence, whether the stored passenger station information is updated or not, and detailed contents such as updated contents and the like;

the administrative division coding function module is responsible for collecting and storing administrative division codes of all administrative regions, and the collecting method automatically collects a latest 12-bit division code list published by a national statistics bureau website through a division information collecting program, wherein the collection code list comprises division codes corresponding to province level, local city level, county level and village level; automatically collecting updated 6 administrative codes of the national region and county level of the Ministry of civil affairs, wherein the administrative codes comprise zone codes corresponding to province level, district and city level and county and city level; or giving a new administrative division code through a manual or third-party program; the storage needs to mark the source of the administrative division code, and the generation time of the division code;

the geographic data function module is used for collecting, updating and storing basic geographic data, wherein the geographic data comprises vector data and character data; the coordinate system standard of the geographic vector data is the WGS84 coordinate system, and the acquisition modes of the geographic vector data include two modes: the method comprises the following steps that public network vector data are collected, wherein the public network vector data comprise a national public country geographic information public service platform day map, a national public country geographic information public service platform public data API, geographic information public service platform day maps of all levels of governments, geographic information public service platform day-ground map data API of all levels of governments and other public data conforming to a use protocol; the second mode is to apply for obtaining the geographic information vector data entity file for use from the data management organization, and apply for all geographic data use permission from the geographic information public service of each level of government; the third mode is that the commercial electronic map provider collaboratively obtains the geographic vector data or purchases the legal geographic vector data provided by the third party; the fourth mode is that the collected character data is calculated to obtain corresponding vector data according to the grasped vector data; and the collected geographic data is classified by time and precision; the classification method comprises the following steps: dividing line vector data by taking a scale as precision, dividing surface vector data by taking the scale and administrative levels, dividing rural areas of the surface vector data in administrative districts by taking the scale as highest precision, taking the surface vector data in other areas as standard, and taking position deviation as precision for point vector data; storing vector data, corresponding collection time, data generation time, data precision, data source, name, data number code, incidence relation among data and category attribute; the data updating adopts factors such as data coordinates, position addresses, data names and relative positions, a WGS84 coordinate system based on the requirement unified standard coordinate is adopted, the most reliable geographic data source with higher precision and the widest data coverage range is taken as a reference, the geographic vector data is updated by using a geographic vector data splicing technology, the updating history is recorded, and the place names or positions used in the history are stored, wherein the related specific technology belongs to the mature technology in the technical field of geographic information and is not described in detail;

the administrative division boundary structure data function module is used for acquiring, updating and storing administrative division boundary structure data, and the acquisition mode comprises the following steps: the method is that the public geographic information service platform daily map from all levels of governments is directly collected and published administrative boundary vector data is obtained, or the public geographic information service platform daily map is applied to all levels of governments to obtain the administrative boundary vector data; the second mode is that the administrative membership changes the character information by collecting the boundary change, and comes from the notice of the specific boundary change information of each level of government administrative division areas; the mode is three-way through administrative region change and name change contained in national 12-level standard administrative codes issued by the national statistical bureau, administrative region change and division code change above and below county level issued by the national statistical bureau monthly, wherein the national 12-level standard administrative codes issued by the national statistical bureau annually can show the subordination relationship and name change of each level of government and contain the change of lower level government regions, the information issued by the national statistical bureau in each month mainly contains the subordination relationship and name change of each level of government with the administrative code change above county level 6, the subordination relationship and name change of each level of government mainly below county level is the information of updating, adding, canceling, merging and the like of rural administrative regions and contains names and 9-level administrative codes; the method comprises the steps that administrative region change characters and administrative division coding information collected in a four-way passing mode three are used for estimating change conditions of rural vector data according to village-level point vector data according to changes of village-level units governed in administrative division coding; thus, each level of administrative units available can be obtained;

the geographic place name named entity segmentation library module is used for calculating and storing a place name named entity segmentation dictionary based on an HMM (hidden Markov model) segmentation method; the method comprises the following steps that a place name entity set is WU, an address statement is SL, a word stock parameter WUFREQUENCE of each place name noun and a total number NUmax of use frequency of the place name noun are obtained; location name noun inclusion relation calculation each location name noun inclusion depth WL, wherein the place name nouns mutually contain the maximum depth WLmax of the relationship; the longest character address length or sentence contains SLmax, and the lowest frequency NPmin of the place name noun; according to the scheme of the backward algorithm in the HMM, the relationship among WUFrequence, NUmax, WL, WLmax, SLmax and NPmin can be obtained, the specific technology is detailed in the field of computers, and the detailed description is omitted here.

The geographic grid rasterization function module is used for calculating and storing boundary rasterization vector data which optimally covers all administrative regions in a theory; the grid is a quadrilateral with two longest edges being 1500 meters; in the calculation process, grids of 1500m × 1500m are sequentially calculated by taking the minimum longitude and the minimum latitude as starting coordinates according to four data of the maximum longitude Xmax, the minimum longitude Xmin, the maximum latitude Ymax and the minimum latitude Ymin geographic vector data boundary data, and when the latest grid contains points (Xmax and Ymax), grid data are calculated; saving raster data and including sequence data for each raster;

the unique checking function module is used for storing information data of the passenger stations corresponding to the coded passenger station codes, storing and numbering raster data contained in a county-level administrative region boundary area in the geocoding process and coding corresponding sequence numbers in the block coding process, checking whether newly coded passenger station data are contained or not, wherein the contained passenger station data correspond to the corresponding passenger station codes, and the raster data contained in the county-level administrative region boundary area and the numbering are compiled according to the coding sequence; generating a raster data sequence code contained in a boundary area of a county-level administrative region, and generating a sequence code of a passenger station corresponding to a code in a district coding process and a sequence code in a grid where the passenger station is located; storing the passenger station codes, corresponding passenger station information and relevant basic information of the codes;

the passenger station code reverse geographic information query module identifies the passenger station code as a geographic code or a division code according to the mark code, the geographic code queries the specific position of the passenger station, returns available address information formed based on geographic vector data, and the division code returns the original address information of the passenger station;

the passenger station code calculation module is used for inquiring the coordinate information codes of the passenger station into station geocodes, and the coding mode is two types of geocodes and division codes according to the existence of the passenger station coordinate information; the geocoding is used for inquiring the administrative district of the county level, inquiring the grid code of the county level, uniquely checking the sequence code and the traffic mode code, and outputting the geocode of the passenger station according to a fixed format; the district codes are used for inquiring administrative district codes of the lowest-level passenger stations, uniquely checking sequence codes and traffic mode codes, and outputting passenger station geocodes according to a specified format; storing the passenger station information corresponding to the codes, wherein the lowest administrative region code information of the division is stored, and the county-level administrative region comprises raster data and raster data sequence code information thereof; the zoning code is a supplement to the geocode, and when the zoning code is obtained corresponding to the coordinate information of the passenger station information, the zoning code is updated into the geocode;

preferably, the calculation coding module in the national passenger station coding system comprises:

the system comprises a passenger station lowest-level administrative division code generating unit, a word bank is segmented based on a place name naming entity, passenger station address information is analyzed by adopting an HMM word segmentation backward algorithm, administrative region code information is inquired according to an administrative region name, geographic information data are matched, and the lowest-level administrative division code to which the passenger station belongs is coded;

the passenger station coordinate data generating unit is used for acquiring coordinate information in the passenger station information data; or segmenting a word bank based on the place name naming entity, adopting an HMM word segmentation backward algorithm to analyze the address information of the passenger station, matching geographic information data, and inquiring coordinate information of the passenger station under certain precision;

the method comprises the steps that a grid data generation unit of a passenger station inquires 1500m × 1500m grid data according to coordinate data of the passenger station to obtain 1500m × 1500m grids of the passenger station;

the method comprises the steps that a raster data sequence code generation unit which belongs to a passenger station divides 1500m × 1500m into 25 parts equally, and inquires which one of the 25 parts belongs to the passenger station to generate a 7 th-bit geocode; generating a sequence code of the 1500m × 1500m grid according to a sequence in which the 1500m × 1500m grid is included in a county-level region to which the passenger station belongs;

the system comprises a passenger station, a management division sequence code generation unit, a division code generation unit and a division code generation unit, wherein the passenger station belongs to the same raster data, the management division sequence code generation unit is suitable for the passenger station which can not determine the coordinate information of the passenger station, the division code is used, and the sequence of the passenger station in the corresponding division code is inquired according to the administrative region to which the passenger station belongs;

the passenger station traffic mode code generating unit is used for inquiring and obtaining a corresponding traffic mode code according to the traffic mode served by the passenger station;

preferably, the village administrative region boundary vector data in the national passenger station coding system is generated according to the following rules:

the method comprises the following steps that firstly, a mesh envelope is formed based on village-level point vectors and a surface vector boundary containing village-level points according to a propagation mechanics principle, a minimum triangular mesh envelope principle and a point-to-line minimum principle, and a principle that connection points are not crossed with each other; the lattice envelope includes single and double vertex lines, so-called single and double vertex lines; two included angles of the single vertex line positioned at two nearest double vertex lines are equal;

secondly, according to the same expansion principle, each village-level point vector is taken as a center circle, the radius is increased with the same radius, if two different circles are tangent to the circle or the circle is tangent to the boundary, the radius of the circles stops increasing, and an intersection point formed by the center circle of each point and a point expansion connecting line is taken as a stopping point; sequentially searching a series of stopping points of each circle; obviously, the single vertex line has only one stopping point, and the double vertex line has two stopping points; calculating the breakpoint of each double vertex line according to the line segment distance proportion covered by the two stopping points of the double vertex line; in addition, the stopping point of the single vertex line is the end of the line segment, and only one double-fixed-point line breakpoint exists between the two single vertex lines;

thirdly, connecting the break points corresponding to the stop points of the circles of each village-level point into the surface vector data of the village level in sequence; for a breakpoint which is between two single vertex lines and only has one double fixed point line, based on the breakpoint, a line is taken to be perpendicular to a double vertex line segment and extends to a boundary or a network envelope dividing line to form a line segment, the network envelope dividing line after intersection, and the network envelope dividing line from the intersection point to the boundary are also boundary data; a breakpoint connecting line, a breakpoint vertical extension line and a network envelope dividing line from the intersection point to the boundary are divided to form each village-level boundary vector data;

fourthly, storing the result and finishing the calculation;

preferably, the 1500m × 1500m grid data in the national passenger station coding system is generated according to the following rules: acquiring four data of a maximum longitude Xmax, a minimum longitude Xmin, a maximum latitude Ymax and a minimum latitude Ymin according to the boundary data of the geographic vector data; sequentially calculating the grids of 1500m × 1500m by taking the minimum longitude and the minimum latitude as starting coordinates, and finishing the generation of grid data when the latest grid contains a point (Xmax, ymax); the specific process is as follows:

step one, calculating a first row of grids according to a starting point (Xmin, ymin), and keeping the minimum dimension of all grids to be Ymin;

a second step, the first point of the first grid of the first row being a point (Xmin, ymin), the second point (Xmin, y 1) of the grid being calculated, wherein point (Xmin, ymin) is from point (Xmin, y 1) 1500m wherein y1> Ymin, the third point (x 1, ymin) of the grid being calculated, wherein point (Xmin, ymin) is from point (x 1, ymin) 1500m wherein x1> Xmin, the fourth point of the grid being (x 1, y 1) which can be obtained, the order of the grids being (1, 1);

thirdly, judging whether the grid comprises coordinates x1 which are larger than Xmax, if so, repeating the second step of calculation, wherein the first point is (x 1, ymin), the second point is (x 1, y 1), calculating a third point (x 2, ymin), wherein the point (x 1, ymin) is 1500m away from the point (x 2, ymin), x2 is larger than x1, the fourth point is (x 2, y 1), and the sequence of the grid is (1, 2); if yes, executing the fourth step;

fourthly, judging whether y1 is larger than Ymax, if so, repeating the first step and calculating the next row of grids by taking the point (Xmin, y 1) as a starting point; such as too much than finishing all grid calculations.

And fifthly, judging whether the points of each grid are contained in the administrative region boundary or not, and if yes, storing the grid and the sequence thereof.

The invention has the following beneficial effects compared with the existing coding:

(1) The invention provides a passenger station coding solution and a specific technology specific data collection method of a set of system, and a user can directly use a scheme or a passenger station code according to the solution. The method provides a set of standard coding system, flow and method for national passenger stations in various transportation modes, and provides powerful technical and system support for realizing national passenger transportation integration. And the coding can also be expanded to all regions of the world, and a solution is provided for global integration of various transportation modes.

(2) The invention solves the actual technical requirements of the link transport, solves the problem that the traditional codes cannot reflect the relationship between stations, basically adopts pure sequential codes, and cannot provide information such as passenger stations, whether transfer can be carried out between different transportation modes and the like. The national passenger station codes can completely solve the problem and become the unique identification of the passenger station and the unique identification of the passenger station for inter-range transportation and cross-mode transfer, thereby being convenient for solving the communication problem and inter-range intercommunication problem among the passenger stations among the transportation modes.

(3) The invention can construct various types of stations, is convenient for encoding stations with various levels of geographic positions and address information, has sufficient capacity and can better serve the encoding requirements of passenger stations in various current transportation modes.

(4) The invention can further serve the requirement of passengers for passenger station address information, and the passenger station address description which is more in line with the passenger requirement is constructed based on the station address information, the station position information and the geographic information data.

(5) The coding of the invention belongs to systematicness, adopts zoning coding and geocoding, has the total length of 11 bits, and has a total structure of front 6 digits and rear 5 digits plus letters (the upper case and the lower case are insensitive, and the upper case is generally adopted). The first 6 are county-level administrative codes, which better meet the actual requirements of local population of passenger service and simply express the service area of the station. The last 5 bits indicate the traffic mode and the accurate position of the station or a sequence code, provide high-precision link information for subsequent link transport and provide high-precision addresses for passengers.

(6) The invention reuses national division codes, covers all levels of administrative divisions, adopts national unified standard, is universal nationwide and is updated and maintained based on national database, and has authority and national coverage.

(7) The invention is based on geographic information technology and computer technology, is suitable for the development route of the prior art, is suitable for the current traffic development requirement, and is suitable for the current traffic development target. And the coding coverage is comprehensive, and the capacity is extremely large, so the technology has wide application scenes and long service life.

Drawings

FIG. 1 is a block diagram of the system of the present invention;

FIG. 2 is a basic information collection three-module flow diagram;

FIG. 3 is a block diagram of a flow of three modules for calculating code usage information;

FIG. 4 is a block diagram of the process of generating passenger station sequence code information record by unique verification

FIG. 5 is a block diagram of a process for calculating codes for passenger stations

FIG. 6 is a block diagram of the process of inquiring the location address of the passenger station by encoding the passenger station

FIG. 7 is a view of a coding structure of a passenger station;

fig. 8 is a structure diagram of a class a zone code of a passenger station;

fig. 9 is a class b zone coding structure diagram of a passenger station;

FIG. 10 is a diagram of a passenger station geocode structure;

FIG. 11 is a diagram of the calculation of the pre-estimated village level vector data;

fig. 12 is a 1500m × 1500m grid calculation chart;

FIG. 13 is a drawing of a construction of 25 parts of corresponding codes for the split 1500m × 1500m grids;

Detailed Description

The passenger station code is the embodiment of passenger station information, and comprises district information, address information, service traffic mode information, coordinate information and transfer information between passenger stations. The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the invention.

As shown in fig. 1, the passenger station code (passenger station ID) calculation encoder of the national passenger station code system disclosed in the embodiment of the present invention mainly includes a passenger station information function module, a zoning code function module, a geographic data function module, a geographic grid rasterization function module, a geographic place name naming entity segmentation library module, an administrative zone boundary structure data function module, a sequential code generation sequence data storage unique check (unique check function module), a passenger station code calculation module, and a passenger station code reverse geographic information query module 9. The functions of the modules are as follows:

the passenger station information function module collects and stores information data of all transport modes of the whole country in a passive and automatic mode;

the code function module of the division, through the manual and automatic way, collect, store and fuse the administrative division code data of the country;

the geographic data function module collects, stores and updates geographic information vector data and character description data in a manual and automatic mode to form latest geographic information data;

the geography grid gridding function module calculates and stores the grid data required by the geography code;

the geographic place name named entity segmentation database module is used for establishing a segmentation database according to place names in geographic data and geographic data entity names for word segmentation based on an HMM method;

the administrative division boundary structure data functional module collects, updates and draws the latest national administrative region boundary vector data in a manual and automatic mode;

the unique checking function module is used for storing the raster data based on the passenger station codes, administrative partitions and recording the sequence according to the passenger station code requirements, generating the raster sequence and partition sequence codes required by the codes, generating the passenger station traffic mode codes and checking the code basic data uniquely;

the passenger station code calculation module is used for inquiring or calculating the lowest-level zoning code or coordinate information of the station by combining the data and the mode information, further respectively calculating the zoning code and the geocode, and combining the zoning code and the geocode to form a passenger station code corresponding to the passenger station information;

the passenger station code reverse geographic information query is used for querying station information according to the passenger station code structure and providing the most accurate and practical address information and coordinate information by combining geographic information data.

The invention discloses a method for coding a passenger station code (passenger station ID) calculation encoder code of a national passenger station coding system, which mainly comprises the following steps:

step 1: collecting coded passenger station information

The method I actively collects the public passenger station information disclosed by the industry supervision units, various passenger enterprises and various passenger station stations through a crawler, wherein the public passenger station information disclosed by each related website comprises passenger station name information, passenger station digital coordinate information, passenger station character address information, passenger station area boundary data information, administrative division information of the passenger station and the traffic mode served by the passenger station: passive receiving is carried out in a second mode, namely passenger station information is reported step by step from a passenger station according to administrative grades, passenger station information is reported step by step according to a ticketing network, and passenger station information is reported step by step according to the structure of a company under jurisdiction; and divides the collecting time and the collecting source, and stores and updates the passenger station information, as shown in a diagram in figure 2.

And 2, step: collecting updated geographic information data

The first mode is that geographic information data are automatically and actively collected through downloading, crawling and other ways, particularly geographic vector data are preferentially collected, text information data are collected to be used as supplement of the vector data or to adjust entity names of the vector data, or data of partial vector data are collected, and data sources such as open source maps, public network maps, government public data, payment maps and the like; in the second mode, remote areas are collected by manually acquiring information point data, inputting and the like, so that the available precision of geographic information data is improved, or the geographic information data used for passenger stations is newly added; and stores the data according to the precision time source classification, as shown in a b diagram in fig. 2.

And step 3: collecting administrative division encoded data

The method comprises the steps that firstly, 12-bit standard administrative region codes of all levels of administrative regions in the country published by different periods of the national statistical bureau and the civil administration, 6-bit administrative region codes of all levels above the county level and 9-bit administrative codes of the county level are actively obtained at regular time through a web crawler technology; the second mode is passive, and an administrative encoding result is obtained by applying to the government; or passively receiving the change condition of the zone coding; collecting data, updating the regional codes of all administrative regions in the latest country through time comparison and source comparison, and storing the data according to time and source, as shown in a graph c in fig. 2;

and 4, step 4: calculating 1500m grid data

Acquiring four data of a maximum longitude Xmax, a minimum longitude Xmin, a maximum latitude Ymax and a minimum latitude Ymin according to the geographic vector data; 1500m × 1500m grid data is sequentially calculated and stored, as shown in a in fig. 3 and fig. 12.

And 5: word stock for calculating place name entity participle

Calculating parameter values of each place name in a word segmentation word bank based on an HMM (hidden Markov model) backward word segmentation calculation algorithm, firstly collecting the place names in the division codes and the vector entity names in the geographic information, removing duplication, naming an entity set as WU according to the place names, setting an address sentence as SL and setting the total use frequency NUmax of the place name nouns; the place name noun inclusion relation calculates the depth WL that each place name noun includes, wherein the place name nouns mutually contain the maximum depth WLmax of the relationship; the longest character address length or sentence contains SLmax, and the lowest frequency NPmin of the place name noun; a lexicon parameter wufrequency for each place name noun is calculated. The flow is shown in the b diagram in fig. 3.

Step 6: computing administrative division boundary vector data

Collecting country division change conditions of civil administration by a web crawler, acquiring change conditions of administrative regions at all levels based on 12-bit administrative codes, acquiring detailed boundary change conditions by government institutions at all levels, and adjusting boundary changes of administrative regions at all levels based on geographic data information; the second way is to manually collect the change of the boundary data of the drawing country-level unit.

And constructing boundary data of the administrative regions of the county level, the city level and the province level in the county level region based on the administrative membership structure of the division codes based on the country level data. The village-level boundary data construction is calculated based on village-level point vector data and plane vector data containing the point vector data, as shown in fig. 11 and c in fig. 3.

And 7: passenger station coding sequence code, traffic mode code generation

According to the passenger station coding request, the request data is the district coding request data and is the district coding sequence code, the geographic code corresponds to the county level data including the raster data sequence, the passenger station service traffic mode code is inquired according to the passenger station information, the uniqueness of the passenger station is checked according to the passenger station information and the stored passenger station coding information, if the district information and the raster data information do not exist, the sequence code is provided in sequence, if the district information and the raster data information exist, the existing sequence code is provided, and the passenger station code and the corresponding passenger station information are stored. The traffic mode code is shown in table 1, and the specific flow is shown in fig. 4.

TABLE 1 various traffic patterns coding

Traffic mode	Numbering	Traffic mode	Number of
				Road automobile	1	Urban road public transport	6
Railway track	2	Urban rail transit	7
				Aircraft with a flight control device	3	Urban water public transport	8
Ship with a hull	4	Other urban public transportation modes	9
				Wheel ferry boat	5

And 8: passenger station code calculation

(1) Obtaining the coordinates of the passenger station and the administrative division code of the lowest level of the passenger station according to the coordinate information address information in the passenger station information; if no passenger station coordinate exists, the step (3) is carried out, and if passenger station coordinate exists, the step (2) is carried out

(2) The 1500m × 1500m grid data of the passenger station is inquired according to the coordinates of the passenger station, the code (seventh bit) is inquired according to 25 parts of the 1500m × 1500m grid, as shown in fig. 13, the 1500m × 1500m grid sequence code is inquired according to administrative divisions (first to sixth bits) and is marked as a 5-bit 6-system (the eighth to tenth bits of the 3 rd segment of the geocode are converted into the first to fifth bits of a six-bit six-system), the passenger station sequence code is marked as a 1-bit 6-system (the eighth to tenth bits of the geocode are converted into the sixth bit of the six-system), the inquiry passenger station transportation mode code is converted into a 36-system, and the bit code is marked as the eleventh bit, as shown in fig. 10.

(3) According to the lowest-level administrative division code of the passenger station, if the lowest-level administrative division code is county level or above, class A division codes are adopted as shown in fig. 8, the division codes are the first to sixth digits and the seventh digit is 'A', the passenger station sequence code is inquired and converted into 3-digit 36-digit system, the eighth to tenth digits are coded for the passenger station, the passenger station traffic mode code is inquired and converted into 36-digit system, and the digit codes are the eleventh digit as shown in fig. 9. If the number is below the county level, class A zone codes are adopted and are shown in figure 8, the zone codes are the first to ninth digits, the inquiry passenger station is sequentially coded and converted into 36 digits in the 1 digit, the passenger station is coded in the tenth digit, the inquiry passenger station traffic mode codes are converted into 36 digits in the 36 digit, and the digits are coded in the eleventh digit as shown in figure 8.

And step 9: inquiring passenger station information and forming address according to passenger station code

According to the analysis of the passenger station codes, passenger station information and corresponding geographic information data are obtained, and passenger station coordinate information, passenger station address information and passenger station relation information are returned, as shown in fig. 6.

Details not described in the present description belong to the prior art known to the person skilled in the relevant art.

Claims

1. A national passenger station coding system and a method are characterized by comprising the following steps:

the system comprises a passenger station information function module, a passenger station information acquisition module and a passenger station information storage module, wherein the passenger station information comprises passenger station name information, passenger station digital coordinate information, passenger station character address information, passenger station area boundary data information, administrative division information of a passenger station and a passenger station service traffic mode, and the acquisition method comprises the steps of actively collecting: the passenger station reports passenger station information step by step according to administrative grades, reports passenger station information step by step according to a ticketing network, reports passenger station information step by step according to the structure of the company under jurisdiction, and passively collects: the method comprises the steps of collecting geographic information of the public network passenger station and disclosing text information of the public network passenger station;

the system comprises an administrative division coding function module, a network public data crawling and actual file input, wherein the public network data crawling is from 12 administrative codes of national regions updated every year by a source national statistics bureau, 6 administrative codes of national regions updated by a civil administration part, and the crawler mode is based on the updating frequency and is collected on the basis of meeting the website flow control;

the geographic data function module is used for collecting, updating and storing geographic data as basic geographic information data to provide basis for subsequent judgment, and the collection method collects vector data which is derived from network disclosure and accords with the standard by taking a WGS84 coordinate system as the standard, collects character data and classifies the data according to time and precision; the classification method comprises the following steps: dividing line vector data by taking a scale as precision, dividing surface vector data by taking the scale and administrative levels, dividing rural areas of the surface vector data in administrative districts by taking the scale as highest precision, taking the surface vector data in other areas as standard, and taking position deviation as precision for point vector data; storing vector data, corresponding collection time, data generation time, data precision, data source, name, data number code, incidence relation among data and category attribute; the updating function is used for updating the mastered geographic vector data according to the precision of the data, the reliability of the data source, the data time, the name and the category;

the administrative division boundary structure data function module is used for collecting, updating and storing administrative division boundary structure data, and the administrative division boundary comprises: border data of administrative districts, border center point data of administrative districts, border change data of administrative districts, corresponding names, administrative levels and administrative districts; the administrative division boundary direct data classification: vector data and text description data, and converting the prefecture boundary text description data into prefecture boundary vector data according to the geographic vector data; the administrative division boundary structure is based on rural area vector data, constructs area vector data of prefecture and city areas, area vector data of the prefecture and city areas and area vector data of the provincial areas according to the structure of the current area; the border change data governed by the administrative division specifically refers to: changing the name of each level of administrative region, changing the administrative levels of each level of administrative region and administrative regions subordinate to the upper level, changing the border of the administrative region of the country, including country change, and newly adding or cancelling each administrative region change; the construction method comprises the steps that firstly, the change situation of rural vector data is estimated according to rural point vector data according to change of administrative division coding and change of responsible village units, and secondly, the change of rural areas is adjusted according to the specific boundaries of characters and the geographic vector data; the Chinese characters in the mode II come from regional change files of all levels of governments about all levels of administrative districts, source network crawling, particularly information about rural administrative district adjustment of the civil administration every month, and information about rural administrative district adjustment of all levels of governments; the updating is to obtain information whether the administrative boundary vector data can be extracted to update the relevant administrative division coded data according to the change time sequence on the basis of the obtained latest change of the administrative region;

the geographic place name named entity segmentation library module is used for calculating and storing a place name named entity segmentation dictionary based on an HMM (hidden Markov model) segmentation method, wherein the segmentation dictionary is used for address segmentation, and extracting and analyzing the specific position of the address;

the geographic grid rasterization function module is used for calculating and storing grid vector data which optimally covers all administrative region boundaries, and the grid data is used for coding and identifying the minimum service range of the passenger station; the grid is a quadrangle of which two longest sides are 1500 meters; the calculation mode is that four data of the maximum longitude Xmax, the minimum longitude Xmin, the maximum latitude Ymax and the minimum latitude Ymin are obtained according to the boundary data of the geographic vector data, the minimum longitude and the minimum latitude are used as coordinates of a starting point, and the maximum longitude and the maximum latitude are used as an end point;

the unique checking function module is used for storing information data of the passenger stations corresponding to the coded passenger station codes, storing and numbering raster data contained in the boundary areas of the county-level administrative regions in the geocoding process and coding corresponding sequence numbers in the region coding process, checking whether the newly coded passenger station data are contained or not, wherein the contained passenger station data correspond to the corresponding passenger station codes, and the raster data contained in the boundary areas of the county-level administrative regions and the numbering are compiled according to the coding sequence; the uniqueness of address information in the passenger station information is ensured;

the passenger station code calculation module is used for inquiring the coordinate information code of the passenger station into a station geocode, and the coding mode is two types of geocodes and a division code according to the existence of the passenger station coordinate information; the geocoding is used for inquiring the administrative district of the county level, inquiring the grid code of the county level, uniquely checking the sequence code and the traffic mode code, and outputting the geocode of the passenger station according to a fixed format; the district codes are used for inquiring administrative district codes of the lowest-level passenger stations, uniquely checking sequence codes and traffic mode codes, and outputting passenger station geocodes according to a specified format; storing passenger station information corresponding to codes, and encoding information of the lowest administrative region of the region to which the information belongs, wherein the county-level administrative region comprises raster data and raster data sequence encoding information thereof; the zoning code is supplementary to the geocode, when the zoning code is obtained corresponding to the coordinate information of the passenger station information, and the zoning code is updated into the geocode;

the passenger station code reverse geographic information query module identifies the passenger station code as a geographic code or a division code according to the mark code, the geographic code queries the specific position of the passenger station, returns available address information formed based on geographic vector data, and the division code returns the original address information of the passenger station.

2. The national passenger station coding system and method according to claim 1, wherein the passenger station information function module collects:

collecting and organizing public information disclosed by industry supervision units, various passenger enterprises, various passenger stations and various related websites of various transportation mode passenger stations (road passenger stations, passenger airports, railway stations, public traffic stations, ports and urban rail transit stations) belonging to each transportation mode, collecting basic information collection of each passenger station, wherein the basic information collection of each passenger station comprises 10 items of information including station names, station short names, station pinyin full names, station initial names, station addresses, administrative divisions to which the stations belong, station longitudes, station latitudes, service traffic modes and information sources; due to the fact that the updating frequency of each transportation mode station is different, the passenger stations of each transportation mode are obtained in different frequency modes, a passenger airport, a railway station, a port and an urban rail transit station are mainly input in a 10-day period mode, the road passenger station and the bus station obtain network related information in a crawler mode, and the crawler frequency is 5 days; the crawler path ticket selling website, the line providing website, the public electronic map, the industry supervision department website, the affiliated company management unit website and each city portal information website.

3. The national passenger station coding system and method according to claim 1, wherein; the specific flow of the administrative division coding function module is as follows:

firstly, crawling the latest 12-bit division code published by a national statistics bureau website according to the frequency of each year by using a crawler program, wherein the division code comprises an administrative division code and an administrative division name; secondly, crawling administrative region division codes of more than 6 county levels of civil administration by using a crawler program according to months, wherein the administrative region division codes comprise administrative division codes and administrative division names; crawling administrative division change situations below civil administration counties by utilizing a crawler program according to months, wherein the administrative division change situations comprise 9 rural administrative division codes, and change modes are corresponding to administrative division names; in the crawler process, the method and the system meet the factors such as flow control of each website and prevent the situation that data cannot be obtained when the crawler process is forbidden.

4. The national passenger station coding system and method according to claim 1, wherein; the geographic data function module collects and stores two types of geographic vector data and geographic character data; analyzing the geographic text data into corresponding vector data on the basis of the vector data; and updating all vector data to be the latest and high-precision vector data based on the source, data forming time and data precision of the vector data from the two sources.

5. The national passenger station coding system and method according to claim 1, wherein; the place name named entity segmentation library module analyzes the division entity names in all the obtained administrative division codes and the vector data entity names in the geographic data into a place name named entity segmentation library based on a backward analysis method of an HMM (hidden Markov model) segmentation algorithm and is used for analyzing character addresses; the specific process for calculating the word bank parameter WUFRESequence of each place name noun comprises the following steps:

firstly, collecting place name nouns and administrative division names contained in all geographic data, and determining the total use frequency NUmax of the place name nouns; secondly, the word stock parameter WUFrace of each administrative region place name is based on the data quantity of the place name contained in the information, and is comprehensively adjusted based on the regional economic activity level and the population level to be the basis for calculating the word stock parameter WUFrace of other place name nouns; thirdly, calculating the inclusion depth WL of each place name noun according to the inclusion relation of the place name nouns, wherein the place name nouns mutually include the maximum depth WLmax of the relation; and fourthly, setting the longest character address length or the sentence containing SLmax and the lowest frequency NPmin of the place name nouns, and calculating the word stock parameter WWUfrequency of each place name noun at each depth.

6. The national passenger station coding system and method according to claim 1, wherein; the specific flow of the administrative division boundary structure data functional module is as follows:

acquiring basic region boundary vector data, region names and region codes corresponding to the data through public data, wherein the basic region boundary vector data, the region names and the region codes comprise country-level administrative region boundary vector data, village-level administrative region point vector data or surface vector data, and the region names and the region codes corresponding to the data;

secondly, according to the subordination relation of the administrative division codes of the corresponding year acquired by the method in claim 3, constructing county and city administrative division boundary vector data, division names and division codes corresponding to the data, regional and city administrative division boundary vector data, division names and division codes corresponding to the data, provincial administrative division boundary vector data, division names and division codes corresponding to the data;

thirdly, according to the rural administrative division change situation obtained in the claim 3, obtaining the rural administrative division change more specific text description situation of the corresponding government website or other division change websites based on a crawler program, or inputting rural administrative division boundary vector data; updating the boundary vector data of the country-level administrative district, and the district codes and the district names corresponding to the vector data; the changing method comprises the steps of adjusting the geographic vector data acquired according to the claim 4 according to the specific boundary of the changed text description; the method has the advantages that no specific change boundary exists, only changes including villages are carried out, and changes are carried out according to the point vector data or the surface vector data of the administrative regions of the villages; setting boundary data represented by each village-level point according to the point density of the village-level point-point vector data change; the change situation of the undistinguishable rural administrative divisions is not changed;

and fourthly, updating and constructing county and city administrative division boundary vector data, division names and division codes corresponding to the data, regional and city administrative division boundary vector data, division names and division codes corresponding to the data, provincial administrative division boundary vector data, division names and division codes corresponding to the data according to the latest administrative division code membership acquired by the claim 3.

7. The national passenger station coding system and method according to claim 1, wherein; the specific process executed by the geographic grid rasterization function module is as follows:

a first step of acquiring four data of a maximum longitude Xmax, a minimum longitude Xmin, a maximum latitude Ymax and a minimum latitude Ymin according to the boundary data of the geographic vector data acquired in claim 4;

secondly, calculating a point (Xmin, y 1) which is 1500m away from the starting point and is unchanged by using the minimum longitude Xmin and the minimum latitude Ymin as the starting point;

thirdly, calculating the longitude x1 of a point (x 1, ymin) which is 1500m away from the starting point through Ymin invariance to obtain a point (x 1, y 1), four points (Xmin, ymin), (x 1, ymin), (Xmin, y 1) and a plane a consisting of x1, y 1; and recording;

step four, if x1 is larger than Xmax and y1 is about Ymax, entering step five; if x1 is less than Xmax, returning to the third step, and replacing Xmin with x1 to calculate the next longitude point; if x1 is larger than Xmax and y1 is smaller than Ymax, returning to the second step, and calculating the dimension of the next stage by replacing Ymin with y 1;

step five, finishing the calculation, judging whether the grid is contained in all administrative regions of the country, and if so, storing all calculation data;

the flow is realized by using a python language for writing.

8. The national passenger station coding system and method according to claim 1, wherein; the passenger station code calculation module comprises a code calculation module,

the system comprises a passenger station belonging administrative division code generation unit, a passenger station management unit and a passenger station management unit, wherein the passenger station belonging administrative division code generation unit is used for inquiring and identifying the lowest-level administrative division code of the passenger station; analyzing the address information of the passenger station based on the place name naming entity segmentation word bank of claim 5 to obtain the lowest-level administrative region code of the passenger station; matching station coordinate information of a passenger station based on the administrative division boundary structure data of claim 6 to obtain the lowest-level administrative region code of the passenger station;

the passenger station coordinate information generating unit is used for inquiring passenger station coordinate information; analyzing the address information of the passenger station based on the place name named entity segmentation word bank of claim 5 to obtain more accurate coordinate information;

a grid number information generating unit, for a passenger station having passenger station coordinate information, inquiring the grid number of the geographical grid 1500m × 1500m according to the grid data of claim 7; according to the standard that the walking tolerance of a passenger station service object person is 5 minutes, the grid where the passenger station is located is a 300m grid, the inquired 1500m grid is divided into 25 parts, and the grid where the station is located is matched to obtain final 300m grid number data;

the passenger station sequence code generating unit is used for calculating to obtain a passenger station sequence code on a zoning or grid basis according to the passenger station information stored by the existing passenger station numbers;

and the traffic mode code generating unit is used for inquiring and obtaining a corresponding traffic mode code according to the attribute of the service traffic mode of the passenger station.

9. The national passenger station coding system and method according to claim 1 or 8, wherein; the specific flow of the unique checking function module is as follows:

the first step, checking the uniqueness of the address information of the passenger station required to be checked in the claim 8 in sequence, analyzing whether the address information of the passenger station is unique according to the segmentation word library of the name named entity of the place name in the claim 5, analyzing the uniqueness of the address information of the coordinate information according to the vector geographic information data in the claim 4, and further determining the uniqueness of the information of the passenger station;

secondly, if the information of the passenger station is unique, adding a passenger station sequence code and returning to generate the sequence code information in the claim 8; and if the passenger station information belongs to the stored passenger station information, returning old passenger station sequence code information.

10. The method for determining the village-level administrative area surface vector data according to the village-level administrative area point vector data in claim 6; the method for determining the village-level administrative region surface vector data is based on a population distribution propagation theory, and village-level administrative region surface vector data are calculated; the specific calculation flow is as follows:

firstly, acquiring minimum administrative region boundary surface vector data M, wherein the minimum administrative region boundary surface vector data M comprises village-level points X = [ X1, X2., xn ]; according to the propagation mechanics principle, a plane M is segmented based on a fixed point X to generate L-line wiring, and line segments contained in L are not crossed; the L is a shortest distance line segment comprising a single vertex line segment Lsn0, namely points xn and M, and a double vertex line segment Ldnm, namely a connecting line segment of the points xn and xm;

secondly, calculating L point spread distances LK, wherein the LK comprises LKsn0= Lsn0 and LKdnm = Ldnm/2;

thirdly, solving an LK minimum line segment LK, if LK corresponds to a single vertex line segment, the fixed point is xo, removing all the single vertex line segments containing xo by L, setting a double vertex line segment containing the fixed point xo minus LK as a single vertex line segment, and updating the connecting line to be L star;

step four, judging whether the L contains any line segment, if yes, entering step five, and if not, repeating the step two by taking the L as the L;

fifthly, according to the steps, each line segment of the L-line wiring is composed as follows: the single vertex segment Lsn0 comprises the minimum segment lkn of the point xn and a possible blank segment Lsn0lk, and adds Lsn0lk to lkn to form a new nlkn, namely the single vertex segment Lsn0 only comprises the minimum segment nlkn comprising the point xn; the double vertex line segment Ldnm comprises a minimum line segment lkn of the point xn, a minimum line segment lkm of the point xm and a possible blank line segment Lsnmlk, and the Lsnmlk is divided according to the proportion of the lkn and the lkm, so that the double vertex line segment Ldnm comprises the minimum line segment nlkn of the point xn and the minimum line segment nlkm of the point xm;

and sixthly, forming the plane vector data of each village level according to the fact that line segment division points are not connected in a cross mode.

11. A national passenger station coding system and a method thereof are realized by the following concrete steps:

firstly, inquiring a lowest-level administrative region and an administrative region code of a passenger station according to the information of the passenger station;

secondly, determining whether the coordinate information of the passenger station can be determined according to the information of the passenger station; if the codes cannot be coded according to the administrative region to which the passenger station belongs, coding the codes of the coding region of the passenger station; if the criminal investigation region code is in a country administrative level, compiling a class A region code; if the administrative region code is above the county administrative level, compiling a class B region code; executing the fifth step;

thirdly, compiling a geocode according to the coordinate information of the passenger station, inquiring grid data containing the coordinates of the passenger station 1500m × 1500m, and inquiring a county-level administrative division code to which the coordinate information of the passenger station belongs; splitting the 1500m × 1500m grid into 25 parts of approximate 300m × 300m grids according to the average side length, matching the grids as shown in the figure, and obtaining a grid code; sequentially storing the grid data containing the coordinates of the passenger station 1500m × 1500m to county-level administrative divisions to be coded in sequence;

a fourth step of inquiring the county-level administrative division codes to which the 1500m × 1500m grids belong according to claim 9, sequentially coding the grid data obtained in the third step, and sequentially coding and converting the 1500m × 1500m grids into 5-bit 6-bit systems by using the sequence codes in the 300m × 300m grids to which the passenger stations belong in the third step, wherein the 1500m × 6 = 5=17496 square kilometers are enough to cover the population residential areas of county-level administrative divisions all over the country; the sequence code of the passenger station in the 300m-300m grid is changed into a 1-bit 6-system code, so that the coding capacity of one passenger station in one walking area is met, the number of the passenger stations in the same transportation mode cannot be higher than 6, the combined code is a 6-bit 6-system code, and the combined code is converted into a 3-bit 36-system code, so that the coding requirement is met;

fifthly, the class A division code is a 9-bit administrative division code and a 36-bit system sequence code, which meets the requirement that in order to meet the management requirement in a rural area, no more 36 village-level sites are available in the rural area, and the class A division code meets the requirement of coding capacity; the class B division codes 6-bit divisions and one-bit marks accord with three-bit 36-system sequence codes, 36^3=46656, and the requirement of coding capacity is met;

sixthly, inquiring codes according to the service traffic mode of the passenger station; combining all parts to obtain a coding result; the information of the passenger stations corresponding to the codes of the passenger stations is stored, the code information of the lowest administrative region of the region to which the information belongs is stored, and the administrative region at the county level comprises raster data and raster data sequence code information thereof.

12. The national passenger station coding system and method of claim 1, wherein; the passenger station coding reverse geographic information query module comprises the following specific processes:

firstly, according to the passenger station code, according to the various information corresponding to the passenger station code stored in the claim 11, the specific address information and position information are inquired; and secondly according to the geographic data of claim 4, to be combined into more clear passenger station address information, or address description information, or coordinate information.

13. The national passenger station coding system according to claim 1 or 11, wherein; the value range of the passenger station coding type check symbol is fully combined with grid storage requirements, different levels of partition coding length requirements and partition coding value coverage requirements, and due to the fact that 300m-300m grids cover the whole country, the subsequent query efficiency of the calculated amount is greatly improved; in fact, a large area in China belongs to an unmanned area, so that the area does not meet the actual requirement, and 1500m-1500m is adopted for reasons of complexity, capacity, length and the like of the codes of the passenger stations, and the codes are divided into 25 parts on the basis; 10 different symbols are needed by combining class A zone coding, 1 symbol mark is needed by class B zone coding, 25 symbol marks are needed by geocoding grid coding, 0-9A-Z is used as a coding type (letters are not sensitive in case and usually in upper case), and the coding type just meets all requirements of coding of three classes of passenger stations in the passenger station coding system, so that 0-9 sections of coding type check symbols are divided into class A zone coding, A sections of coding type check symbols are divided into class B zone coding, and B-Z sections of coding type check symbols are divided into geocoding.