CN108197347A - The geographic space distribution uniformity detection method of continuous irregular area sampled point - Google Patents
The geographic space distribution uniformity detection method of continuous irregular area sampled point Download PDFInfo
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Abstract
The present invention provides a kind of geographic space distribution uniformity detection method of continuous irregular area sampled point, including being encoded to each sampled point in sampling area, obtains the encoded radio of each sampled point；According to the encoded radio of all sampled points, the geographic space distribution uniformity of all sampled points in the sampling area is calculated.The geographic space distribution uniformity detection method of continuous irregular area sampled point provided by the invention, by being encoded to each sampled point, and the geographic space distribution uniformity of all sampled points in sampling area is calculated according to the encoded radio of all sampled points, and generate the uniform encoding figure of all sampled points, the uniformity coefficient of continuous irregular area sampled point is evaluated according to the uniformity, and pass through uniform encoding figure and determine abnormal unit grid, it ensure that the availability of sample point data, the de-redundant for being conducive to next step sample point data is refined and mining analysis, and it ensure that the accuracy and reliability of analysis and practical application.
Description
Technical field
The present invention relates to space mapping technical field more particularly to a kind of geographical spaces of continuous irregular area sampled point
Distribution consistency degree detection method.
Background technology
Continuous irregular sampling region is usually that inside is continuous, and the region of irregularity boundary, such as certain small towns, certain village.Even
Whether continuous irregular area sampling point distributions are uniformly the key factors of later stage sample point data detection evaluation and judge the later stage
The whether accurate important evidence of analysis result, therefore the geographic space distribution uniformity of continuous irregular area sampled point is carried out
Detection seems extremely important.
In the prior art, the geographic space distribution uniformity of generally use following methods detection sampled point：Assuming that N number of point is equal
It is distributed in evenly in a certain sampling area, builds the Thiessen polygon net of these points, then, calculate their Thiessen polygon face
Long-pending variation accumulates to build a point planar distribution consistency degree indexWherein, N is sampled point
Number, SiFor the corresponding Thiessen polygon area of ith sample point, S is nominal Thiessen polygon area, will entire sampling area
Area averagely give N number of point, the deserved Thiessen polygon area of each point.Index reflection point is in the plane space minute
The uniformity of cloth is distributed N number of sampled point in the same area, and different layouts may bring the different uniformitys, they equal
Evenness can be weighed with this nondimensional E, its corresponding layout of the higher explanation of E values is more uniform.
Method of the prior art does not distinguish the concrete kinds such as the fragmentation of sampling area, continuous irregular and continuous regular
Type, not for this specific sampling area of continuous irregular area, this method index system is relatively simple, lacks system
Property, the geographic space distribution uniformity testing result of continuous irregular area sampled point is caused to be susceptible to deviation, also without body of laws
Existing sample point data local uniform details, the de-redundant for being unfavorable for next step sample point data are refined and mining analysis.
Invention content
(1) technical problems to be solved
The object of the present invention is to provide a kind of geographic space distribution uniformity detection sides of continuous irregular area sampled point
Method solves the geographic space distribution uniformity detection accuracy and reliability of continuous irregular area sampled point in the prior art
It is low and can not position causes the technology of all non-uniform sampled points of sampled point geographic space distribution of continuous irregular area to be asked
Topic.
(2) technical solution
In order to solve the above-mentioned technical problem, on the one hand, the present invention provides a kind of geography of continuous irregular area sampled point
Uniform spatial distribution degree detection method, including：
First order grid is generated, and sampling area is covered with the first order grid, the first order grid includes multiple
First order unit grid, the first order unit grid are equal to the square grid of average sample area, the sampling for area
Region is continuous irregular area, and the average sample area is between the gross area of the sampling area and sampled point number
Ratio；
If judging to know, the number of sampled point in the first order unit grid is more than one, by the first order Unit Cell
Net is divided into the second level unit grid of four area equations, and the second level unit grid is square grid；
If judging to know, the number of sampled point in the second level unit grid is less than or equal to one, to the sampling area
In each sampled point encoded, obtain the encoded radio of each sampled point；
The encoded radio of all sampled points in the sampling area calculates all sampled points in the sampling area
The geographic space distribution uniformity.
Further, the encoded radio of all sampled points in the sampling area, calculates the sampling area
In all sampled points the geographic space distribution uniformity after further include：
The encoded radio of all sampled points in the sampling area generates all sampled points in the sampling area
Uniform encoding figure；
The abnormal unit grid in the sampling area is determined according to the uniform encoding figure, the exception unit grid is
Encoded radio is not equal to 1 unit grid.
Further, each sampled point in the sampling area is encoded specially：
Wherein, CiFor the encoded radio of ith sample point, the level of unit grid of the t where ith sample point.
Further, the encoded radio of all sampled points in the sampling area, calculates the sampling area
In the geographic space distribution uniformitys of all sampled points be specially：
Wherein, the geographic space distribution uniformitys of the E for all sampled points, CiFor the encoded radio of ith sample point, N is adopts
The number of sampled point in sample region.
Further, the encoded radio of all sampled points in the sampling area, generates the sampling area
In the uniform encoding figures of all sampled points be specially：
The encoded radio of corresponding unit grid, the volume of each unit grid are obtained according to the encoded radio of each sampled point
Code value is equal to the encoded radio of its internal sampled point, and the encoded radio of the internal unit grid without sampled point is 0；
By in the encoded radio mark to corresponding unit grid of each unit grid, all in the sampling area adopt is generated
The uniform encoding figure of sampling point.
On the other hand, the present invention provides a kind of geographic space distribution uniformity detection dress of continuous irregular area sampled point
It puts, including：
Grid generation module for generating first order grid, and covers sampling area with the first order grid, and described the
Level-one grid includes multiple first order unit grid, and the first order unit grid is equal to the pros of average sample area for area
Shape grid, the sampling area be continuous irregular area, the average sample area for the sampling area the gross area with
Ratio between sampled point number；
Division module, if judging to know, the number of sampled point in the first order unit grid is more than one, is used for institute
The second level unit grid that first order unit grid is divided into four area equations is stated, the second level unit grid is square
Grid；
Coding module, if judging to know, the number of sampled point in the second level unit grid is less than or equal to one, is used for
Each sampled point in the sampling area is encoded, obtains the encoded radio of each sampled point；
Computing module for the encoded radio of all sampled points in the sampling area, calculates the sampling area
In all sampled points the geographic space distribution uniformity.
Further, yard figure generation module and a determining module are further included, wherein,
Code figure generation module generates the sample region for the encoded radio of all sampled points in the sampling area
The uniform encoding figure of all sampled points in domain；
Determining module, it is described for determining the abnormal unit grid in the sampling area according to the uniform encoding figure
Abnormal unit grid is not equal to 1 unit grid for encoded radio.
It is examined in another aspect, the present invention provides a kind of geographic space distribution uniformity for continuous irregular area sampled point
The electronic equipment of survey, including：
Memory and processor, the processor and the memory complete mutual communication by bus；It is described to deposit
Reservoir is stored with the program instruction that can be performed by the processor, and it is above-mentioned that the processor calls described program instruction to be able to carry out
Method.
Another aspect, the present invention provide a kind of computer program product, and the computer program product includes being stored in non-
Computer program in transitory computer readable storage medium, the computer program includes program instruction, when described program refers to
When order is computer-executed, the computer is made to perform above-mentioned method.
Another aspect, the present invention provide a kind of computer readable storage medium, are stored thereon with computer program, the meter
Calculation machine program realizes above-mentioned method when being executed by processor.
(3) advantageous effect
The geographic space distribution uniformity detection method of continuous irregular area sampled point provided by the invention, by every
A sampled point is encoded, and the geography sky of all sampled points in sampling area is calculated according to the encoded radio of all sampled points
Between distribution consistency degree, the uniformity coefficient of sampled point is evaluated according to the uniformity, the accuracy and reliability of evaluation is high, and leads to
The availability of the geographic space distribution uniformity evaluation sampled data of oversampled points, to ensure sample point data concrete analysis and reality
The accuracy and reliability of border application.And uniform encoding figure can be also combined, determines the geography of all sampled points in sampling area
Uniform spatial distribution degree determines the abnormal unit grid in sampling area according to uniform encoding figure, convenient for further to exception
Unit grid is handled, and is conducive to refine to the de-redundant of sample point data and mining analysis in next step.
Description of the drawings
Fig. 1 is the geographic space distribution uniformity detection side of the continuous irregular area sampled point according to the embodiment of the present invention
Method schematic diagram；
Fig. 2 is the geographic space distribution uniformity detection side of the continuous irregular area sampled point according to the embodiment of the present invention
The logical flow chart of method；
Fig. 3 is the uniform encoding diagram intention according to all sampled points in the sampling area of the embodiment of the present invention；
Fig. 4 is that the geographic space distribution uniformity of the continuous irregular area sampled point according to the embodiment of the present invention detects dress
Put schematic diagram；
Fig. 5 is that the geographic space distribution uniformity provided in an embodiment of the present invention for continuous irregular area sampled point is examined
The structure diagram of the electronic equipment of survey.
Specific embodiment
In order to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Attached drawing in example, is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that described embodiment
It is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work shall fall within the protection scope of the present invention.
Embodiment 1：
Fig. 1 is the geographic space distribution uniformity detection side of the continuous irregular area sampled point according to the embodiment of the present invention
Method schematic diagram, as shown in Figure 1, a kind of geographic space distribution of continuous irregular area sampled point of offer of the embodiment of the present invention is uniform
Detection method is spent, including：
Step S10, first order grid is generated, and sampling area, the first order grid are covered with the first order grid
Including multiple first order unit grid, the first order unit grid is equal to the square grid of average sample area for area,
The sampling area is continuous irregular area, and the average sample area is the gross area of the sampling area and sampled point
Ratio between number；
If the number for step S20, judging to know sampled point in the first order unit grid is more than one, by described first
Grade unit grid is divided into the second level unit grid of four area equations, and the second level unit grid is square grid；
If the number for step S30, judging to know sampled point in the second level unit grid is less than or equal to one, to described
Each sampled point in sampling area is encoded, and obtains the encoded radio of each sampled point；
Step S40, the encoded radio of all sampled points in the sampling area is calculated in the sampling area and is owned
The geographic space distribution uniformity of sampled point.
Further, the encoded radio of all sampled points in the sampling area, calculates the sampling area
In all sampled points the geographic space distribution uniformity after further include：
The encoded radio of all sampled points in the sampling area generates all sampled points in the sampling area
Uniform encoding figure；
The abnormal unit grid in the sampling area is determined according to the uniform encoding figure, the exception unit grid is
Encoded radio is not equal to 1 unit grid.
Further, each sampled point in the sampling area is encoded specially：
Wherein, CiFor the encoded radio of ith sample point, the level of unit grid of the t where ith sample point.
Further, the encoded radio of all sampled points in the sampling area, calculates the sampling area
In the geographic space distribution uniformitys of all sampled points be specially：
Wherein, the geographic space distribution uniformitys of the E for all sampled points, CiFor the encoded radio of ith sample point, N is adopts
The number of sampled point in sample region.
Further, the encoded radio of all sampled points in the sampling area, generates the sampling area
In the uniform encoding figures of all sampled points be specially：
The encoded radio of corresponding unit grid, the volume of each unit grid are obtained according to the encoded radio of each sampled point
Code value is equal to the encoded radio of its internal sampled point, and the encoded radio of the internal unit grid without sampled point is 0；
By in the encoded radio mark to corresponding unit grid of each unit grid, all in the sampling area adopt is generated
The uniform encoding figure of sampling point.
Specifically, Fig. 2 is uniform for the geographic space distribution of the continuous irregular area sampled point according to the embodiment of the present invention
The logical flow chart of detection method is spent, as shown in Fig. 2, further illustrating the present invention implementation below by specific logical flow chart
The method of example.
Firstly, it is necessary to sampling area and sampling point distributions data to be evaluated are obtained, statistic sampling region gross area S and sampling
Point total quantity N calculates the average sample area S of the equally distributed sampled point of ideal conditions down-sampling point0.Wherein, average sample
Area S0Calculation formula it is as follows：
Wherein, S0For average sample area, S is the gross area of sampling area, and N is the number of sampled point.
In the present embodiment, it with the sampling point distributions data instance of Pang Gezhuang of Daxing district, Beijing, China town pollution monitoring, carries out
The pollution monitoring sampled point geographical space uniformity detects.Sampling area Pang Gezhuang town is continuous irregular area, and statistics calculates should
Sampling area gross area S is 109.384km2, total number of sample points amount N is 27, according to average sample area S0Calculation formula,
Calculate average sample area S0For 4.051km2；
Then, generation Unit Cell web area is S0Square grid, covered as first order grid, and with first order grid
Entire sampling area is covered, is extracted based on Spatial Overlap Analysis and obtains the M first order grid for including sampling area.Wherein, space
Overlap Analysis can be based on ArcGIS softwares and realize；The total quantity of the first order grid of extraction is M, wherein M >=N.
In the present embodiment, using Unit Cell web area as 4.051km2Square grid covering Pang Gezhuang town sampling area,
Spatial Overlap Analysis based on ArcGIS softwares extracts 39 square grid for including sampling area.The square grid number of generation
M=39, more than total number of sample points amount 27；
Then, judge whether the number of sampled point in first order unit grid is more than one.
If judging to know, the number of sampled point in the first order unit grid is more than one, to the first order Unit Cell
Net carries out secondary division, is divided into the second level unit grid of four area equations, and the second level unit grid is square
Grid, the second level grid come out by first order grid partition are the sublattice net of first order grid, mark off the second level come
Grid includes multiple second level unit grid.
If judgement knows that the number of sampled point in the second level unit grid is up to one, grid partition finishes.
If the number for judging to know sampled point in the second level unit grid is still greater than one, with second level unit grid
For object, secondary division is carried out.
Recursive operation is carried out in the above described manner, is until meeting most one of the sampled point quantity in each unit grid
Only, grid partition finishes, and unit grid includes the warps such as first order unit grid, second level unit grid, third level unit grid
Cross the unit grid generated after dividing.
In the present embodiment, the grid partition for meeting most one of sampled point quantity in each unit grid terminates item
It is as follows to count this grid partition scheme for part：It is 39 to divide grid for the first time, i.e., first order unit grid is 39；Secondary stroke
Grid 4 has 4 first order unit grid to carry out secondary division；Grid 1 is divided three times, that is, has 1 second level list
Position grid is divided three times.
Then, encoding operation is carried out to the unit grid of division and each sampled point is encoded, obtains each adopt
The encoded radio of sampling point, and ultimately generate the uniform encoding figure of all sampled points in sampling area.
Fig. 3 is the uniform encoding diagram intention according to all sampled points in the sampling area of the embodiment of the present invention, such as Fig. 3 institutes
Show, wherein, the descending grid of area is followed successively by first order unit grid, second level unit grid, third level Unit Cell
Net ..., t grades of unit grid.Second level grid, third level grid ..., t grades of grid be referred to as sublattice net, each first order
Unit grid, each second level unit grid, each third level unit grid ..., each t grades of unit grid be referred to as unit
Grid.
Sampled point uniform encoding rule is：For the unit grid for having sampled point, divide be encoded to 1, the i.e. first order for the first time
Unit grid is encoded to 1, and the encoded radio of the sampled point in first order unit grid is 1；Secondary division is encoded to 1/4, i.e., second
Grade unit grid is encoded to 1/4, and the encoded radio of the sampled point in the unit grid of the second level is 1/4；It divides three times and is encoded to 1/16,
That is third level unit grid is encoded to 1/16, and the encoded radio of the sampled point in third level unit grid is 1/16；And so on, the
T division is encoded to 1/4t-1, i.e. t grades of unit grid are encoded to 1/4t-1, the encoded radio of the sampled point in t grades of unit grid
It is 1/4t-1；Unit grid Unified coding for no sampled point is 0.It is right with it that the encoded radio of each sampled point is labeled in
In the unit grid answered, marked without the unit grid encoded radio 0 of sampled point, just generate all sampled points in sampling area
Uniform encoding figure.
In the present embodiment, grid partition is divided into three-level.First order grid encodes 35, wherein including 18 " 1 " and 17
A " 0 "；Second level grid encodes 15, wherein including 7 " 1/4 " and 8 " 0 "；Third level grid encodes 4, wherein including 2
A " 1/16 " and 2 " 0 ".Wherein, unit grid of the encoded radio of unit grid not equal to 1 is abnormal unit grid, i.e. unit
Unit grid of the encoded radio of grid equal to 0,1/4 and 1/16 is abnormal unit grid.Sampled point in abnormal unit grid is
Abnormal sample point, abnormal sample point can cause the geographic space distribution of all sampled points in sampling area uneven.It is compiled from uniform
Abnormal unit grid and abnormal sample point can be quickly and intuitively determined in code figure, and according to actual needs to abnormal Unit Cell
Net and abnormal sample point are handled, and are conducive to refine to the de-redundant of sample point data and mining analysis in next step.
Then, the encoded radio of all sampled points in the sampling area calculates all in the sampling area adopt
The geographic space distribution uniformity of sampling point, specific formula for calculation are：
Wherein, the geographic space distribution uniformitys of the E for all sampled points, CiFor the encoded radio of ith sample point, N is adopts
The number of sampled point in sample region.Uniformity numerical value is bigger, shows that sample point data geographic space distribution is more uniform, conversely,
Show that sample point data geographic space distribution is more uneven.
In the present embodiment, the specific formula for calculation of the geographic space distribution uniformity E based on all sampled points calculates north
The geographic space distribution uniformity 0.736 of the sampled point of Jing Shi Daxing Districts Pang Gezhuang town sampling area.
Uniformity E characterizations detection sampled point can be utilized in the uniformity of geographic space distribution.Sampled point can also be used
Uniform encoding figure and the characterized uniformitys for detecting sampled point in geographic space distribution of uniformity E.Wherein, Daxing district, Beijing, China
The local uniform details of Pang Gezhuang's town sampled point is levied by Fig. 3 uniform encodings chart；Pang Gezhuang of Daxing district, Beijing, China town sampled point
Whole uniformity coefficient is characterized by uniformity E, and the uniformity of the sampled point of the sampling area is 0.736.The uniform encoding of sampled point
Figure and the characterized testing result of the uniformity show a kind of continuous irregular area sampled point geographical space proposed by the present invention point
The uniform detection method of cloth is very accurate, reliable, effective.
The geographic space distribution uniformity detection method of continuous irregular area sampled point provided by the invention, by every
A sampled point is encoded, and the geography sky of all sampled points in sampling area is calculated according to the encoded radio of all sampled points
Between distribution consistency degree, the uniformity coefficient of sampled point is evaluated according to the uniformity, the accuracy and reliability of evaluation is high, and leads to
The availability of the geographic space distribution uniformity evaluation sampled data of oversampled points, to ensure sample point data concrete analysis and reality
The accuracy and reliability of border application.And uniform encoding figure can be also combined, determines the geography of all sampled points in sampling area
Uniform spatial distribution degree determines the abnormal unit grid in sampling area according to uniform encoding figure, convenient for further to exception
Unit grid is handled, and is conducive to refine to the de-redundant of sample point data and mining analysis in next step.
Embodiment 2：
Fig. 4 is that the geographic space distribution uniformity of the continuous irregular area sampled point according to the embodiment of the present invention detects dress
Schematic diagram is put, as shown in figure 4, a kind of geographic space distribution of continuous irregular area sampled point of offer of the embodiment of the present invention is uniform
Detection device is spent, for performing the method described in above-described embodiment, grid generation module 10 is specifically included, division module 20, compiles
Code module 30 and computing module 40, wherein,
Grid generation module 10 covers sampling area for generating first order grid with the first order grid, described
First order grid includes multiple first order unit grid, and the first order unit grid is being equal to average sample area just for area
Rectangular grid, the sampling area are continuous irregular area, and the average sample area is the gross area of the sampling area
With the ratio between sampled point number；
Division module 20, if judging to know, the number of sampled point in the first order unit grid is more than one, and being used for will
The first order unit grid is divided into the second level unit grid of four area equations, and the second level unit grid is pros
Shape grid；
Coding module 30, if judging to know, the number of sampled point in the second level unit grid is less than or equal to one, uses
It is encoded in each sampled point in the sampling area, obtains the encoded radio of each sampled point；
Computing module 40 calculates the sampling area for the encoded radio of all sampled points in the sampling area
In all sampled points the geographic space distribution uniformity.
Further, yard figure generation module and a determining module are further included, wherein,
Code figure generation module generates the sample region for the encoded radio of all sampled points in the sampling area
The uniform encoding figure of all sampled points in domain；
Determining module, it is described for determining the abnormal unit grid in the sampling area according to the uniform encoding figure
Abnormal unit grid is not equal to 1 unit grid for encoded radio.
The geographic space distribution uniformity detection device of continuous irregular area sampled point provided by the invention, by every
A sampled point is encoded, and the geography sky of all sampled points in sampling area is calculated according to the encoded radio of all sampled points
Between distribution consistency degree, the uniformity coefficient of sampled point is evaluated according to the uniformity, the accuracy and reliability of evaluation is high, and leads to
The availability of the geographic space distribution uniformity evaluation sampled data of oversampled points, to ensure sample point data concrete analysis and reality
The accuracy and reliability of border application.And uniform encoding figure can be also combined, determines the geography of all sampled points in sampling area
Uniform spatial distribution degree determines the abnormal unit grid in sampling area according to uniform encoding figure, convenient for further to exception
Unit grid is handled, and is conducive to refine to the de-redundant of sample point data and mining analysis in next step.
Embodiment 3：
Fig. 5 is that the geographic space distribution uniformity provided in an embodiment of the present invention for continuous irregular area sampled point is examined
The structure diagram of the electronic equipment of survey, as shown in figure 5, the equipment includes：Processor (processor) 801, memory
(memory) 802 and bus (bus) 803；
Wherein, processor 801 and memory 802 complete mutual communication by the bus 803；
Processor 801 is used to call program instruction in memory 802, is provided with to perform above-mentioned each method embodiment
Method, such as including：
First order grid is generated, and sampling area is covered with the first order grid, the first order grid includes multiple
First order unit grid, the first order unit grid are equal to the square grid of average sample area, the sampling for area
Region is continuous irregular area, and the average sample area is between the gross area of the sampling area and sampled point number
Ratio；
If judging to know, the number of sampled point in the first order unit grid is more than one, by the first order Unit Cell
Net is divided into the second level unit grid of four area equations, and the second level unit grid is square grid；
If judging to know, the number of sampled point in the second level unit grid is less than or equal to one, to the sampling area
In each sampled point encoded, obtain the encoded radio of each sampled point；
The encoded radio of all sampled points in the sampling area calculates all sampled points in the sampling area
The geographic space distribution uniformity.
Embodiment 4：
The embodiment of the present invention discloses a kind of computer program product, and the computer program product includes being stored in non-transient
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer performs, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：
First order grid is generated, and sampling area is covered with the first order grid, the first order grid includes multiple
First order unit grid, the first order unit grid are equal to the square grid of average sample area, the sampling for area
Region is continuous irregular area, and the average sample area is between the gross area of the sampling area and sampled point number
Ratio；
If judging to know, the number of sampled point in the first order unit grid is more than one, by the first order Unit Cell
Net is divided into the second level unit grid of four area equations, and the second level unit grid is square grid；
If judging to know, the number of sampled point in the second level unit grid is less than or equal to one, to the sampling area
In each sampled point encoded, obtain the encoded radio of each sampled point；
The encoded radio of all sampled points in the sampling area calculates all sampled points in the sampling area
The geographic space distribution uniformity.
Embodiment 5：
The embodiment of the present invention provides a kind of non-transient computer readable storage medium storing program for executing, the non-transient computer readable storage
Medium storing computer instructs, and the computer instruction makes the computer perform the side that above-mentioned each method embodiment is provided
Method, such as including：
First order grid is generated, and sampling area is covered with the first order grid, the first order grid includes multiple
First order unit grid, the first order unit grid are equal to the square grid of average sample area, the sampling for area
Region is continuous irregular area, and the average sample area is between the gross area of the sampling area and sampled point number
Ratio；
If judging to know, the number of sampled point in the first order unit grid is more than one, by the first order Unit Cell
Net is divided into the second level unit grid of four area equations, and the second level unit grid is square grid；
If judging to know, the number of sampled point in the second level unit grid is less than or equal to one, to the sampling area
In each sampled point encoded, obtain the encoded radio of each sampled point；
The encoded radio of all sampled points in the sampling area calculates all sampled points in the sampling area
The geographic space distribution uniformity.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
The relevant hardware of program instruction is completed, and aforementioned program can be stored in a computer read/write memory medium, the program
When being executed, step including the steps of the foregoing method embodiments is performed；And aforementioned storage medium includes：ROM, RAM, magnetic disc or light
The various media that can store program code such as disk.
The embodiments such as device described above and equipment are only schematical, wherein described be used as separating component explanation
Unit may or may not be physically separate, the component shown as unit may or may not be
Physical unit, you can be located at a place or can also be distributed in multiple network element.It can be according to the actual needs
Some or all of module therein is selected to realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying
In the case of performing creative labour, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
Technical solution is stated substantially in other words to embody the part that the prior art contributes in the form of software product, it should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and (can be personal computer, server or the network equipment etc.) so that computer equipment is used to perform each implementation
Method described in certain parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic；
And these modification or replace, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of geographic space distribution uniformity detection method of continuous irregular area sampled point, which is characterized in that including：
First order grid is generated, and sampling area is covered with the first order grid, the first order grid includes multiple first
Grade unit grid, the first order unit grid are equal to the square grid of average sample area, the sampling area for area
For continuous irregular area, ratio of the average sample area between the gross area of the sampling area and sampled point number
Value；
If judging to know, the number of sampled point in the first order unit grid is more than one, and the first order unit grid is drawn
It is divided into the second level unit grid of four area equations, the second level unit grid is square grid；
If judging to know, the number of sampled point in the second level unit grid is less than or equal to one, in the sampling area
Each sampled point is encoded, and obtains the encoded radio of each sampled point；
The encoded radio of all sampled points in the sampling area calculates the geography of all sampled points in the sampling area
Uniform spatial distribution degree.
2. according to the method described in claim 1, it is characterized in that, all sampled points in the sampling area
Encoded radio, the geographic space distribution uniformity for calculating all sampled points in the sampling area further include later：
The encoded radio of all sampled points in the sampling area generates the uniform of all sampled points in the sampling area
Code pattern；
The abnormal unit grid in the sampling area is determined according to the uniform encoding figure, the exception unit grid is coding
Unit grid of the value not equal to 1.
3. according to the method described in claim 1, it is characterized in that, each sampled point in the sampling area carries out
Coding is specially：
Wherein, CiFor the encoded radio of ith sample point, the level of unit grid of the t where ith sample point.
4. according to the method described in claim 1, it is characterized in that, all sampled points in the sampling area
Encoded radio, the geographic space distribution uniformity for calculating all sampled points in the sampling area are specially：
Wherein, the geographic space distribution uniformitys of the E for all sampled points, CiFor the encoded radio of ith sample point, N is sampling area
In sampled point number.
5. according to the method described in claim 2, it is characterized in that, all sampled points in the sampling area
Encoded radio, the uniform encoding figure for generating all sampled points in the sampling area are specially：
The encoded radio of corresponding unit grid, the encoded radio of each unit grid are obtained according to the encoded radio of each sampled point
Equal to the encoded radio of its internal sampled point, the encoded radio of the internal unit grid without sampled point is 0；
By in the encoded radio mark to corresponding unit grid of each unit grid, all sampled points in the sampling area are generated
Uniform encoding figure.
6. a kind of geographic space distribution uniformity detection device of continuous irregular area sampled point, which is characterized in that including：
Grid generation module for generating first order grid, and covers sampling area, the first order with the first order grid
Grid includes multiple first order unit grid, and the first order unit grid is equal to the square lattice of average sample area for area
Net, the sampling area are continuous irregular area, and the average sample area is the gross area and the sampling of the sampling area
Ratio between point number；
Division module, if judging to know, the number of sampled point in the first order unit grid is more than one, is used for described the
Level-one unit grid is divided into the second level unit grid of four area equations, and the second level unit grid is square lattice
Net；
Coding module, if judging to know, the number of sampled point in the second level unit grid is less than or equal to one, is used for institute
The each sampled point stated in sampling area is encoded, and obtains the encoded radio of each sampled point；
Computing module for the encoded radio of all sampled points in the sampling area, calculates institute in the sampling area
There is the geographic space distribution uniformity of sampled point.
7. device according to claim 6, which is characterized in that yard figure generation module and a determining module are further included, wherein,
Code figure generation module is generated for the encoded radio of all sampled points in the sampling area in the sampling area
The uniform encoding figure of all sampled points；
Determining module, for determining the abnormal unit grid in the sampling area, the exception according to the uniform encoding figure
Unit grid is not equal to 1 unit grid for encoded radio.
8. the electronic equipment that a kind of geographic space distribution uniformity for continuous irregular area sampled point detects, feature exist
In, including：
Memory and processor, the processor and the memory complete mutual communication by bus；The memory
The program instruction that can be performed by the processor is stored with, the processor calls described program instruction to be able to carry out right such as will
Seek 1 to 5 any method.
9. a kind of computer program product, which is characterized in that the computer program product includes being stored in non-transient computer
Computer program on readable storage medium storing program for executing, the computer program include program instruction, when described program is instructed by computer
During execution, the computer is made to perform the method as described in claim 1 to 5 is any.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The method as described in claim 1 to 5 is any is realized when being executed by processor.
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