CN102542084A - Network status emulation method and equipment utilizing same - Google Patents
Network status emulation method and equipment utilizing same Download PDFInfo
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- CN102542084A CN102542084A CN2010106015784A CN201010601578A CN102542084A CN 102542084 A CN102542084 A CN 102542084A CN 2010106015784 A CN2010106015784 A CN 2010106015784A CN 201010601578 A CN201010601578 A CN 201010601578A CN 102542084 A CN102542084 A CN 102542084A
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Abstract
The invention discloses a network status emulation method and equipment utilizing the same. The network status emulation method mainly includes: continuously dividing a to-be-emulated area in a bounding rectangle of a raster map by means of recursive fashion until subareas playing leading roles behind the divided parts are formed; or serving emulation parameters of the subareas playing leading roles as emulation parameters used for raster of the subareas when the subareas in the divided parts have low affection to the parts; or utilizing the default emulation parameters for the raster of the subareas. Since the emulation parameters used for the raster are determined by means of recursive fashion regionally, computing frequency is reduced greatly and emulation efficiency is increased as compared with the determination method of traversing all rasters.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of emulation mode and equipment of network state.
Background technology
Simulation result to the regional network state emulation of actual scene is the important reference of the network planning, therefore, reflects that truly the network state under the actual scene zone seems particularly important.Consider in the actual scene zone; Geographical states such as different atural object, landform, landforms have considerable influence to wireless propagation environment and effective overlay area of network; Therefore; When carrying out network state emulation; Can be with treating that simulating area is divided into a plurality of disjoint in twos wireless scene subregions according to different geographic information, as: according to the telephone traffic height, be population dense city and this two sub regions of the sparse suburb of population with 10 square kilometres actual scene area dividing; And the subregion that is respectively different is provided with simulation parameter, as: the building penetration loss parameter that is provided with for the subregion of population dense city is greater than the building penetration loss parameter that be the subregion setting in the sparse suburb of population.
After confirming to treat simulating area, dividing subregion that obtains and the simulation parameter that is provided with for all subregion, just can carry out simulation operations to this network state with simulating area, specific operation process is:
The first step, simulating area is treated in expression in grating map, and all subregion that marks off.
In the time of will treating that simulating area is passed through grating map and represented; Need in grating map, represent the boundary rectangle that this treats simulating area; This is because treat the different of simulating area, and in simulation process, unification is got its boundary rectangle as simulating area; After emulation finishes, through cutting out the simulation result that still can obtain treating simulating area.As shown in Figure 1, wherein the irregular area of solid line is to treat simulating area and subregion wherein 1, subregion 2 and subregion 3, treats that the outer dashed rectangle zone of simulating area is for treating the boundary rectangle of simulating area.
In second step, confirm the subregion that each grid belongs in the grating map in map.
In this step; Can be according to from left to right, each grid in the traversal of the order from top to bottom boundary rectangle; Then according to the coordinate of this grid central point, carry out the locus with all subregion in the grating map and judge, confirm the subregion that grid belongs to.
In grating map shown in Figure 1, the grid that dotted line is represented is described for ease, the grid quantity that in boundary rectangle, is provided with is far smaller than the grid quantity in the actual emulation.
In the 3rd step, confirm the simulation parameter of grid place subregion, and utilize this simulation parameter that the network state in the represented zone of this grid is carried out emulation.
In this step, if each grid in the grating map is represented the zone of 20m * 20m, then utilize the simulation parameter of this grid place subregion, the network state simulation result in can obtain that this grid representes 0.04 square kilometre.
In the 4th step,, obtain treating the network state simulation result of simulating area according to the simulation result in each represented zone of grid in the boundary rectangle that obtains.
In above-mentioned simulation operations, utilize the simulation parameter of the subregion at each grid place that the network state in the represented zone of grid is carried out emulation, can simulate the network state of treating simulating area exactly.
But; In the simulation operations of reality,, and treat that the simulating area area is very big if use the grating map (being that each grid is represented 0.004 square kilometre) of 20m * 20m; As reach thousands of square kilometres; The boundary rectangle of then treating simulating area has the grid of hundreds thousand of meters in grating map, if use the grating map of 5m * 5m, treat that then the boundary rectangle of simulating area has millions of even up to ten million grids in grating map.If each grid all will carry out the subregion that the grid place is judged to confirm in the locus with the subregion in the grating map; Then when Computer Simulation; Need the system resource of labor to confirm the subregion that each grid belongs to; And then the simulation parameter that uses when confirming that the represented zone of grid carried out emulation, greatly reduce simulation efficiency.
Summary of the invention
The embodiment of the invention provides a kind of emulation mode and equipment of network state; When carrying out emulation, need the spatial relationship of all grids of traversal to confirm that simulation parameter causes the low problem of simulation efficiency in order to solve the network state of utilizing grating map to treat simulating area that exists in the prior art.
A kind of emulation mode of network state, said method comprises:
The boundary rectangle of treating simulating area in the grating map is divided into many parts;
Carry out following operation to cutting apart each part that obtains:
Confirm to be positioned at the subregion of treating simulating area of this part, and confirm that each subregion is positioned at the area of this part and the ratio of this part area;
Judge whether to exist ratio greater than higher limit, if exist, then will be greater than the simulation parameter of the corresponding subregion of ratio of higher limit simulation parameter as all grids that are positioned at this part in the grating map; Otherwise,
Whether further judge each ratio of confirming all less than lower limit, if, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map; Otherwise, this part is divided into many parts once more, and, repeats said operation to each part after cutting apart once more;
Utilize the simulation parameter of grid, the network state in the represented zone of grid is carried out emulation.
A kind of network state emulator, said equipment comprises:
First cuts apart module, is used for grating map is treated that the boundary rectangle of simulating area is divided into many parts;
Computing module is used for confirming to be positioned at the subregion of treating simulating area of this part to cutting apart each part that obtains, and confirms that each subregion is positioned at the area of this part and the ratio of this part area;
First judge module is used to judge whether if there is the ratio greater than higher limit, if exist, and then will be greater than the simulation parameter of the corresponding subregion of ratio of higher limit simulation parameter as all grids that are positioned at this part in the grating map; Otherwise, trigger second judge module;
Whether second judge module is used to judge each definite ratio all less than lower limit, if, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map; Otherwise, trigger second and cut apart module;
Second cuts apart module, is used for this part is divided into many parts once more, and to each part after cutting apart once more, triggers computing module;
Emulation module is used to utilize the simulation parameter of grid, and the network state in the represented zone of grid is carried out emulation.
The embodiment of the invention will treat that the boundary rectangle of simulating area in grating map constantly cut apart by recursive fashion; Prevailing subregion is arranged after the part of cutting apart; Or all subregions are to these some effects when very little in the partitioning portion, the simulation parameter that the simulation parameter of prevailing subregion is used as the grid of place part, or the grid of place part uses the simulation parameter of acquiescence; Because the embodiment of the invention adopts the recurrence dividing method to confirm the employed simulation parameter of grid regionally; Judgment mode with respect to all grids of traversal has significantly reduced calculation times, has improved simulation efficiency.
Description of drawings
Fig. 1 for treat in the grating map simulating area with and the boundary rectangle synoptic diagram;
Fig. 2 is the emulation mode synoptic diagram of network state in the embodiment of the invention one;
Fig. 3 (a) and Fig. 3 (b) are cut apart synoptic diagram for boundary rectangle;
Fig. 4 is that the part 4 of Fig. 3 (a) is once more by the synoptic diagram after cutting apart;
Fig. 5 is the network state emulator structural representation in the embodiment of the invention two.
Embodiment
In order to improve the simulation efficiency of the network state of treating simulating area; Confirm to treat the simulation parameter of each grid place subregion in the grating map of simulating area place fast; The embodiment of the invention proposes a kind of new network state simulating scheme, with treating that the boundary rectangle of simulating area in grating map constantly cut apart by recursive fashion, to the each several part after cutting apart; Until definite wherein prevailing subregion; And the simulation parameter that the simulation parameter of prevailing subregion is used as the grid of place part, perhaps, if there is not prevailing subregion; And subregion does not almost have under the situation of influence the place part, lets place grid partly use the simulation parameter of acquiescence.Because among the present invention program is that the simulation parameter of all grids in a part of zone in the grating map is confirmed, has overcome in the prior art and confirmed respectively that to each grid place subregion and simulation parameter cause the big problem of system resource occupancy.
Below in conjunction with Figure of description the embodiment of the invention is elaborated.
It is identical in the various embodiments of the present invention boundary rectangle to be cut apart the partitioning scheme that adopts when the part of boundary rectangle being cut apart when the recursive operation, and concrete partitioning scheme can be five equilibrium, also can be five equilibrium not.
The embodiment of the invention one is that example describes the present invention program with the mode of five equilibrium.
Embodiment one
As shown in Figure 2, the emulation mode synoptic diagram for network state in the embodiment of the invention one said method comprising the steps of:
Step 101: the boundary rectangle of treating simulating area in the grating map is divided into many parts.
Before this step is carried out, will treat that simulating area is presented in the grating map, and, will treat that simulating area is divided into a plurality of disjoint in twos subregions, also shows all subregion in grating map according to treating simulating area different geographic information.
Because each subregion is represented certain geographical environment; As: different scenes such as densely populated city, the sparse suburb of population, forest, grassland; And the parameters of network signal is also different in the different geographical environments; Therefore, need for each subregion simulation parameter be set respectively according to the different geographic environment.
In grating map, show treat simulating area and divide after subregion after, in grating map, confirm this and treat the boundary rectangle of simulating area that specific practice is:
At first, confirm to treat edge two points of simulating area on the longitudinal of grating map, i.e. A among Fig. 1, B 2 points, and 2 points of the edge on definite latitude direction, i.e. C among Fig. 1, D 2 points.
Then, confirm to pass through respectively on the precision direction two straight lines of 2 of A, B, and two straight lines that pass through 2 of C, D on the latitude direction respectively, these four straight lines intersect the boundary rectangle that obtains treating simulating area.
In this step, can cut apart according to multiple mode boundary rectangle, each the part area after cutting apart equates to get final product.For example: boundary rectangle is divided into 4 parts, or, boundary rectangle is divided into 2 parts along warp, latitude direction shown in Fig. 3 (a) according to shown in Fig. 3 (b) from the boundary rectangle central point.
To each part that five equilibrium obtains, operation below carrying out respectively:
Step 102: the subregion of treating simulating area of confirming to be positioned at this part.
Suppose in this step that boundary rectangle carries out five equilibrium according to the mode shown in Fig. 3 (a), obtain part 1 (upper left), part 2 (bottom left section), part 3 (upper right portion) and part 4 (lower right-most portion).In this step, need confirm subregion wherein to each part in 4 parts that obtain behind the five equilibrium.Be example with Fig. 3 (a) still, the subregion that is arranged in part 1 is the part of subregion 1 and subregion 2, and part 2 does not comprise subregion, and the subregion that is arranged in part 3 is another part of subregion 2, and the subregion that is arranged in part 4 is a subregion 3.
Step 103: confirm that each subregion is positioned at the area of this part and the ratio of this part area.
Be that example describes still with Fig. 3 (a); The part of subregion 1 and subregion 2 is arranged in part 1; In this step, need to confirm respectively the ratio of area of area and the part 1 of subregion 1, and subregion 2 is arranged in the area of part 1 and the ratio of part 1 area.Way to part 3 and part 4 is identical with part 1.
Distinguishingly, do not comprise subregion in the part 2, the area that then can regard subregion in the part 2 as is 0, and the ratio that obtains also is 0.
Step 104: judge whether that if exist, then execution in step 105 if there is the ratio greater than higher limit, otherwise, execution in step 106.
In this step; The ratio of supposing the area of subregion 1 in part 1 and the area of part 1 is greater than higher limit; Can think that then subregion 1 is a prevailing subregion in the part 1, therefore, all grids in the part 1 can adopt the simulation parameter of subregion 1.
Suppose that subregion 2 is prevailing subregions in the part 3, then all grids in the part 3 can adopt the simulation parameter of subregion 2.
Suppose that subregion 3 is not occupied an leading position in the part 4, then part 4 needs to continue execution in step 106.
Supposing does not have prevailing subregion yet in the part 2, then part 2 also need continue execution in step 106.
Step 105: will be greater than the simulation parameter of the corresponding subregion of the ratio of higher limit simulation parameter as all grids that are positioned at this part in the grating map, and jump to step 110.
Step 106: judge that whether each ratio of confirming is all less than lower limit, if then execution in step 107; Otherwise, execution in step 108.
In this step, if the shared area of all subregions is all very little in certain part, to the almost not influence of this part, then can be with the simulation parameter of acquiescence simulation parameter as all grids of this part.
Be example still with the situation shown in Fig. 3 (a); The area of supposing subregion 1 and the ratio of the area of part 1 are greater than higher limit; But the ratio of the area of subregion 2 in part 1 and the area of part 1 is less than lower limit, but because not every subregion is all very little to the influence of part 1, therefore; Grid in the part 1 adopts simulation parameter according to step 105, and can not adopt simulation parameter according to step 107.
Do not have subregion in the part 2, the area that can regard subregion in the part 2 as is 0, and therefore, the grid in the part 2 adopts the simulation parameter of acquiescence.
Step 107:, and jump to step 110 with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part.
Step 108: judge whether to exist the undetermined part of simulation parameter of the grid that comprises, if then execution in step 109; Otherwise, jump to step 110.
Screening through step 104 and step 106; The grid of the part 1 among Fig. 3 (a), part 2 and part 3 has been confirmed the simulation parameter of use; The condition of having only part 4 neither to satisfy step 104 does not satisfy the condition of step 106 yet, therefore, and need be to part 4 execution in step 109.
Step 109: the undetermined part of the simulation parameter of grid is divided into many parts once more, and jumps to step 102 according to many parts that five equilibrium once more obtains.
Be example still with the situation shown in Fig. 3 (a); To part 4 five equilibrium once more, the five equilibrium mode of this step is identical, as shown in Figure 4 with five equilibrium mode in the step 101; Part 4 is divided into 4 parts; Be respectively part 4_1, part 4_2, part 4_3 and part 4_4, these 4 parts are distinguished execution in step 102～step 109 again; When confirming that each part has subregion in prevailing subregion or the part that this part is not almost influenced, be the simulation parameters of the definite employing of all grids in the part according to the mode of step 105 or step 107.
Step 110: utilize the simulation parameter of grid, the network state in the represented zone of grid is carried out emulation.
The scheme of the step 101～step 110 through the embodiment of the invention one; To treat the continuous five equilibrium of boundary rectangle of simulating area through recursive algorithm; Prevailing subregion or definite subregion are almost nil to the influence of this part in obtaining this part; If there is prevailing subregion; The simulation parameter that then simulation parameter of this subregion is adopted as all grids of place part, if almost not influence of the subregion in this part, then all grids of this part adopt the simulation parameter of acquiescence.Because the embodiment of the invention is confirmed the simulation parameter that grid adopts through burst; Confirm the mode of the simulation parameter of employing respectively to each grid with respect to prior art; Can reduce space querying and judge number of times, reduction takies system resource in a large number, has effectively improved simulation efficiency.
Higher limit that relates in the embodiment of the invention one and lower limit can be confirmed in the following manner:
1, confirm higher limit:
Said higher limit can be rule of thumb to be worth prevailing subregion of definite expression and the ratio that belongs to area partly, as 90%.
Said higher limit can also be according to the area of the area sum of subregion and boundary rectangle confirm that recently concrete mode is:
At first, confirm the area sum of all subregions in the grating map and the ratio of boundary rectangle area, its computing formula is shown in formula (1):
Wherein: P representes the area sum of subregion and the ratio of boundary rectangle area; S
kThe area of expression all subregion is treated total n sub regions in the simulating area; S representes the area of boundary rectangle.
Then, P and predefined first threshold value are compared, this first threshold value can rule of thumb be worth definite, is 90% like first threshold value.
At last, if P is greater than first threshold value, be 93% like P, then with P as higher limit; Otherwise, with first threshold value as higher limit.
2, confirm lower limit:
Said lower limit can be rule of thumb to be worth definite expression subregion to belonging to the area ratio that does not partly almost have influence, as 5%.
Said lower limit can also be according to the area of the area sum of subregion and boundary rectangle confirm that recently concrete mode is:
At first, confirm the difference of the area sum of boundary rectangle and all subregions in the grating map, and confirm the ratio of this difference and boundary rectangle area, its computing formula is shown in formula (2):
Wherein: Q representes the area sum of subregion and the ratio of boundary rectangle area; S
kThe area of expression all subregion is treated total n sub regions in the simulating area; S representes the area of boundary rectangle.
Then, Q and predefined second threshold value are compared, this second threshold value can rule of thumb be worth definite, is 5% like second threshold value.
At last, if Q is less than second threshold value, be 3% like Q, then with Q as lower limit; Otherwise, with second threshold value as lower limit.
Through above-mentioned higher limit and the lower limit of being provided with flexibly, can carry out meticulous planning to the simulating area of different geographical environments, can satisfy the demand in the actual emulation better.
Embodiment two
As shown in Figure 5; Be the network state emulator in the embodiment of the invention two; Said equipment comprises: first cut apart module 11, computing module 12, first judge module 13, second judge module 14, second is cut apart module 15 and emulation module 16, wherein: first cuts apart module 11 is used for grating map is treated that the boundary rectangle of simulating area is divided into many parts; Computing module 12 is used for confirming to be positioned at the subregion of treating simulating area of this part to cutting apart each part that obtains, and confirms that each subregion is positioned at the area of this part and the ratio of this part area; First judge module 13 is used to judge whether if there is the ratio greater than higher limit, if exist, then with the simulation parameter of the corresponding subregion of this ratio simulation parameter as all grids that are positioned at this part in the grating map; Otherwise, trigger second judge module 14; Whether second judge module 14 is used to judge each definite ratio all less than lower limit, if, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map; Otherwise, trigger second and cut apart module 15; Second cuts apart module 15 is used for this part is divided into many parts once more, and to each part after cutting apart once more, triggers computing module 12; Emulation module 16 is used to utilize the simulation parameter of grid, and the network state in the represented zone of grid is carried out emulation.
Particularly, said second judge module 14 also is used for if there is the part that does not comprise subregion, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map.
First cuts apart module 11 and second, and to cut apart the partitioning scheme that module 15 adopted identical.
In addition, said equipment comprises that also area dividing module 17 and parameter are provided with module 18, and wherein: area dividing module 17 is used for the said simulating area of treating is divided into a plurality of subregions according to different geographic information; Parameter is provided with module 18 and is used to each subregion simulation parameter is set.
Said equipment also comprises higher limit determination module 19 and lower limit determination module 10; Wherein: higher limit determination module 19 is used for confirming the area sum of all subregions of grating map and the ratio of boundary rectangle area; If this ratio is greater than predefined first threshold value, then with this ratio as higher limit; Otherwise, with said first threshold value as higher limit; Lower limit determination module 10 is used for the difference of the area sum of definite external rectangular area of grating map and all subregions; And the ratio of definite this difference and boundary rectangle area; If this ratio is less than predefined second threshold value, then with this ratio as lower limit; Otherwise, with said second threshold value as lower limit.
Network state emulator in the embodiment of the invention two also has the logical block that can carry out embodiment one each step.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. the emulation mode of a network state is characterized in that, said method comprises:
The boundary rectangle of treating simulating area in the grating map is divided into many parts;
Carry out following operation to cutting apart each part that obtains:
Confirm to be positioned at the subregion of treating simulating area of this part, and confirm that each subregion is positioned at the area of this part and the ratio of this part area;
Judge whether to exist ratio greater than higher limit, if exist, then will be greater than the simulation parameter of the corresponding subregion of ratio of higher limit simulation parameter as all grids that are positioned at this part in the grating map; Otherwise,
Whether further judge each ratio of confirming all less than lower limit, if, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map; Otherwise, this part is divided into many parts once more, and, repeats said operation to each part after cutting apart once more;
Utilize the simulation parameter of grid, the network state in the represented zone of grid is carried out emulation.
2. the method for claim 1 is characterized in that, the boundary rectangle of treating simulating area in the grating map is divided into before many parts, and said method also comprises:
The said simulating area of treating is divided into a plurality of subregions according to different geographic information, and simulation parameter is set for each subregion.
3. the method for claim 1 is characterized in that, confirms said higher limit in the following manner:
Confirm the area sum of all subregions in the grating map and the ratio of boundary rectangle area, if this ratio is greater than predefined first threshold value, then with this ratio as higher limit; Otherwise, with said first threshold value as higher limit;
Confirm said lower limit in the following manner:
Confirm the difference of the area sum of external rectangular area and all subregions in the grating map, and confirm the ratio of this difference and boundary rectangle area, as if this ratio less than predefined second threshold value, then with this ratio as lower limit; Otherwise, with said second threshold value as lower limit;
Wherein: first threshold value is greater than second threshold value.
4. the method for claim 1 is characterized in that, if there is the part that does not comprise subregion, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map.
5. the method for claim 1 is characterized in that, the partitioning scheme that each cutting operation is adopted is identical.
6. a network state emulator is characterized in that, said equipment comprises:
First cuts apart module, is used for grating map is treated that the boundary rectangle of simulating area is divided into many parts;
Computing module is used for confirming to be positioned at the subregion of treating simulating area of this part to cutting apart each part that obtains, and confirms that each subregion is positioned at the area of this part and the ratio of this part area;
First judge module is used to judge whether if there is the ratio greater than higher limit, if exist, and then will be greater than the simulation parameter of the corresponding subregion of ratio of higher limit simulation parameter as all grids that are positioned at this part in the grating map; Otherwise, trigger second judge module;
Whether second judge module is used to judge each definite ratio all less than lower limit, if, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map; Otherwise, trigger second and cut apart module;
Second cuts apart module, is used for this part is divided into many parts once more, and to each part after cutting apart once more, triggers computing module;
Emulation module is used to utilize the simulation parameter of grid, and the network state in the represented zone of grid is carried out emulation.
7. equipment as claimed in claim 6 is characterized in that, said equipment also comprises:
The area dividing module is used for the said simulating area of treating is divided into a plurality of subregions according to different geographic information;
Parameter is provided with module, is used to each subregion simulation parameter is set.
8. equipment as claimed in claim 6 is characterized in that, said equipment also comprises:
The higher limit determination module is used for confirming the area sum and the ratio of boundary rectangle area of all subregions of grating map, as if this ratio greater than predefined first threshold value, then with this ratio as higher limit; Otherwise, with said first threshold value as higher limit;
The lower limit determination module; The difference that is used for the area sum of definite external rectangular area of grating map and all subregions; And confirm the ratio of this difference and boundary rectangle area, as if this ratio less than predefined second threshold value, then with this ratio as lower limit; Otherwise, with said second threshold value as lower limit.
9. equipment as claimed in claim 6 is characterized in that,
Said second judge module also is used for if there is the part that does not comprise subregion, then with the simulation parameter of the simulation parameter of giving tacit consent to as all grids that are positioned at this part in the grating map.
10. equipment as claimed in claim 6 is characterized in that, first cuts apart module and second, and to cut apart the partitioning scheme that module adopts identical.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104427514A (en) * | 2013-08-30 | 2015-03-18 | 中国移动通信集团设计院有限公司 | Method and device for simulating communication network |
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| CN107302457A (en) * | 2017-06-22 | 2017-10-27 | 重庆邮电大学 | A kind of simulation space dividing method based on rectangular area |
| CN107302457B (en) * | 2017-06-22 | 2020-04-07 | 重庆邮电大学 | Simulation space segmentation method based on rectangular region |
| CN112632209A (en) * | 2020-12-29 | 2021-04-09 | 智慧足迹数据科技有限公司 | Data association method and device, computer equipment and readable storage medium |
| CN112632209B (en) * | 2020-12-29 | 2021-08-17 | 智慧足迹数据科技有限公司 | Data association method and device, computer equipment and readable storage medium |
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