CN112199804A - Method for calculating and drawing wireless network simulation area - Google Patents

Method for calculating and drawing wireless network simulation area Download PDF

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Publication number
CN112199804A
CN112199804A CN202010920122.8A CN202010920122A CN112199804A CN 112199804 A CN112199804 A CN 112199804A CN 202010920122 A CN202010920122 A CN 202010920122A CN 112199804 A CN112199804 A CN 112199804A
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point
vertex
coordinates
area
polygon
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CN112199804B (en
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王跃庆
鞠卫国
陈建
朱冉
仇堃堃
黄冬杰
郭恩荣
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China Information Consulting and Designing Institute Co Ltd
China Telecom Corp Ltd Jiangsu Branch
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China Information Consulting and Designing Institute Co Ltd
China Telecom Corp Ltd Jiangsu Branch
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/20—Drawing from basic elements, e.g. lines or circles
    • G06T11/206—Drawing of charts or graphs
    • G06T3/08—

Abstract

The invention provides a method for calculating and drawing a wireless network simulation area, which comprises the following steps: step 1, drawing a polygon on a map; step 2, converting the polygon vertex from the geographic coordinate to a projection coordinate; step 3, judging the concavity and convexity of the polygon vertex; step 4, setting a coverage radius and determining an extension range; step 5, calculating the vertex coordinates of the simulation calculation area; and 6, converting the plane coordinates into geographic coordinates.

Description

Method for calculating and drawing wireless network simulation area
Technical Field
The invention belongs to the technical field of mobile communication, and particularly relates to a method for calculating and drawing a wireless network simulation area.
Background
The simulation plays an important role in wireless network planning, is beneficial to finely deploying a wireless network, optimizing the network construction cost and providing a high-quality solution for customers. The key of the simulation computing efficiency depends on the amount of simulation computing resources, and the simulation computing resources are screened according to the simulation computing area.
The existing simulation calculation area mainly has two schemes, one is to manually draw the simulation calculation area, and the other is not to set the simulation calculation area.
(1) Manually drawing a simulated calculation region
The method is easy to understand, namely, the planner draws an area which expands outwards and has a similar shape outside the drawn simulation area.
(2) Setting simulation calculation area in general
As shown in FIG. 1, the method is that a planner first draws a simulation region, then takes the four vertex coordinates of a circumscribed rectangle of the simulation region, and then expands the rectangle outwards at equal intervals to form the final four vertex coordinates. As shown in FIG. 1, A1A2A3A4A5For the drawn simulation area, ABCD is an external rectangle, A 'B' C 'D' is an expanded simulation calculation area, and the simulation coverage radius is L.
The existing method needs to draw a simulation calculation area manually or set the simulation calculation area in a general way. The manual drawing calculation area has certain human errors, cannot be finely expanded according to the coverage radius, and also takes some time cost. If the simulation calculation area is set in a general manner, cell parameters which are not in the coverage area can be also included in the simulation calculation during the simulation calculation, and although the final simulation result is not influenced, the efficiency of calculation operation can be greatly reduced. Therefore, the conventional technical method has difficulty in solving the following problems:
1. how to expand the calculation region equidistantly based on the drawing region;
2. how to establish the regional geometric relationship under the geographic coordinate system;
3. how to improve the efficiency of simulation computation.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the technical problems in the background art, the invention provides a method for calculating and drawing a wireless network simulation area, which comprises the following steps:
step 1, drawing a polygon on a map;
step 2, converting the polygon vertex from the geographic coordinate to a projection coordinate;
step 3, judging the concavity and convexity of the polygon vertex;
step 4, setting a coverage radius and determining an extension range;
step 5, calculating the vertex coordinates of the simulation calculation area;
and 6, converting the plane coordinates into geographic coordinates.
The step 1 comprises the following steps: continuously drawing N points which are not on the same straight line on the map, wherein N is more than or equal to 3, namely points 1 are connected with 2, points 2 are connected with 3, … …, and N is connected with 1, and the points form a polygonal closed area, namely a drawing area. Because the map adopts a geographic coordinate system, the vertexes of the polygon are all geographic coordinates, namely common longitude and latitude coordinates, and the geographic coordinate of the ith vertex is recorded as (J)i,Wi)。
The step 2 comprises the following steps: converting the geographic coordinates of the polygon vertexes into geodetic coordinates, and converting the ith polygon vertex AiHas the coordinates of (x)i,yi) And i takes a value of 1-N.
The step 3 comprises the following steps: for the ith polygon vertex AiSetting (x)i+1,yi+1) Is AiWith reference to the coordinates of the adjacent vertices in the sequential direction,(xi-1,yi-1) Is AiReferring to the adjacent vertex coordinates in the opposite order, then:
(1) when y isi≠yi+1And y isi≠yi-1When the temperature of the water is higher than the set temperature,
Figure BDA0002666429650000021
d is a vector
Figure BDA0002666429650000022
And
Figure BDA0002666429650000023
the slope difference of (a);
(2) when y isi＝yi-1When the temperature of the water is higher than the set temperature,
if xi>xi-1Get it
Figure BDA0002666429650000024
I.e. d>0；
If xi<xi-1Get it
Figure BDA0002666429650000025
I.e. d<0；
(3) When y isi＝yi+1When the temperature of the water is higher than the set temperature,
if xi+1>xiGet it
Figure BDA0002666429650000031
I.e. d<0；
If xi+1<xiGet it
Figure BDA0002666429650000032
I.e. d>0；
Therefore, if vertex A is setiThe reference order of (1) is counterclockwise, and when d is greater than 0, the point is a convex vertex; when d is less than 0, the point is a concave vertex;
if set to vertex AiWhen d is greater than 0, the point is a concave vertex; dWhen less than 0, the point is a convex vertex.
Step 4 comprises the following steps: and setting the coverage radius of the cell as L, and respectively making parallel lines to the outside of each side of the polygon, wherein the vertical distance between the two lines is L, and the parallel lines are intersected to form an expanded polygon area, namely a simulation calculation area.
The step 5 comprises the following steps:
step 5-1, Point AiRespectively drawing as starting points
Figure BDA0002666429650000033
And
Figure BDA0002666429650000034
vector quantity;
step 5-2, taking the angle beta as a vector
Figure BDA0002666429650000035
And
Figure BDA0002666429650000036
the included angle is formed, and only one point A exists in the bisector of the angle betai'(xi',yi') are respectively to
Figure BDA0002666429650000037
And
Figure BDA0002666429650000038
is L and angle theta is
Figure BDA0002666429650000039
And
Figure BDA00026664296500000310
the included angle is formed by the angle of the two sides,
Figure BDA00026664296500000311
is AiPoint to Ai' distance of points, derived from the geometric relationship:
Figure BDA00026664296500000312
Figure BDA00026664296500000313
is less than gamma
Figure BDA00026664296500000314
And the included angle between the angle and the horizontal coordinate X is less than or equal to 90 degrees, then:
if xi+1≠xi，
Figure BDA00026664296500000315
If xi+1＝xi，∠γ＝90°，
Angle delta is
Figure BDA00026664296500000316
And
Figure BDA00026664296500000317
the included angle formed is then & lt delta & gt & lt gamma & lt theta & gt, then point Ai'(xi',yi') satisfies the following formula:
Figure BDA0002666429650000041
Figure BDA0002666429650000042
solving to obtain:
Figure BDA0002666429650000043
Figure BDA0002666429650000044
four groups of point coordinates are obtained according to the formula, but the four groups of point coordinates are also satisfied
Figure BDA0002666429650000045
And
Figure BDA0002666429650000046
is equal and is L, so that the target points meeting the condition are always on the bisector of the angle beta, and only 2 are provided, one is a point inside the angle beta and is marked as Ai'(xi',yi') and the other is a point outside < beta > and is marked as Ai″(xi″,yi″)；
Step 5-3, A obtained according to step 3iThe following results were obtained for the unevenness of (1):
if A isiIf the point is a concave point, the point expanded outward is Ai'(xi',yi')；
If A isiIs a convex point, the point expanded outwards is Ai″(xi″,yi″)；
And 5-4, sequentially calculating the top points of the simulation calculation areas according to the step 5-1 to the step 5-3.
The step 6 comprises the following steps: and (5) converting the plane coordinates into geographic coordinates according to the vertex coordinates of the simulation calculation area obtained by calculation in the step 5, so as to obtain the simulation calculation area under a geographic coordinate system.
The invention has the following beneficial effects:
1. and automatically drawing a simulation calculation area.
One of the traditional methods for setting the wireless network simulation calculation area is manual drawing by a user, which is not accurate enough and is not convenient to use. By extending the coverage radius of the simulation area and the like based on the simulation area and the coverage radius, automatic drawing of the simulation calculation area can be realized.
2. And expanding the polygonal area in parallel at equal distances.
One of the traditional methods for setting the wireless network simulation calculation area is to perform offset with a certain distance based on the vertex coordinates of the circumscribed rectangle of the drawing area. This approach may add invalid artificial parameter calculations. The method can accurately screen the effective working parameters according to the calculation area range, thereby improving the calculation efficiency of simulation.
Drawings
The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic diagram of a general setup simulation calculation region.
FIG. 2 is a schematic diagram of a drawing area and a simulation calculation area.
FIG. 3 is a schematic diagram of the calculation of the vertex coordinates of the simulated calculation region.
Detailed Description
The invention provides a method for calculating and drawing a wireless network simulation area, which optimizes and improves the traditional method, automatically draws the simulation calculation area, reduces the range of simulation calculation and improves the efficiency of the simulation calculation.
The method comprises the following specific steps:
step one, drawing a polygon on a map.
Continuously drawing a plurality of points on the map to form a polygonal closed area, which is called a drawing area for short hereinafter and is essentially a simulation result area. As shown in FIG. 2, the rendering area is a polygon A1A2A3A4A5。
And step two, converting the polygon vertex from the geographic coordinate into a projection coordinate.
The typical daily use latitude and longitude coordinates are geographic coordinates. Since the geographic coordinates are non-planar coordinates, it is inconvenient to calculate and analyze, and they need to be converted into planar coordinates. Usually, the longitude and latitude coordinates are converted into geodetic coordinates, and the longitude and latitude coordinates of each platform are inconsistent because of certain confidentiality of the longitude and latitude conversion, so that a formula for converting the longitude and latitude into the geodetic coordinates is not described here. As shown in FIG. 2, the transformed polygon verticesRespectively has coordinates of A1(x1,y1)、A2(x2,y2)、A3(x3,y3)、A4(x4,y4)、A5(x5,y5)。
And step three, judging the concave-convex of the polygon vertex of the drawing area.
Next, it is necessary to first determine the concavity and convexity of each vertex of the polygon. The simplest method for judging the concavity and convexity of the polygon vertex is to judge according to the ray method, the derivation process is not detailed, and the result is shown directly below. As shown in FIG. 3, let (x)i,yi) Is the vertex coordinate of the certain polygon, (x)i+1,yi+1) For reference to the adjacent vertex coordinates in the sequential direction, (x)i-1,yi-1) To refer to the coordinates of adjacent vertices in the reverse order.
(1) When y isi≠yi+1And y isi≠yi-1Time of flight
Figure BDA0002666429650000061
d is a vector
Figure BDA0002666429650000062
And
Figure BDA0002666429650000063
the slope difference of (a).
(2) When y isi＝yi-1Time of flight
If xi>xi-1Get it
Figure BDA0002666429650000064
I.e. d>0；
If xi<xi-1Get it
Figure BDA0002666429650000065
I.e. d<0。
(3) When y isi＝yi+1Time of flight
If xi+1>xiGet it
Figure BDA0002666429650000066
I.e. d<0；
If xi+1<xiGet it
Figure BDA0002666429650000067
I.e. d>0。
(4) Conclusion
1. If the reference sequence of the vertexes is assumed to be anticlockwise, when d is larger than 0, the point is a convex vertex; when d is less than 0, the dot is a concave vertex.
2. If the reference order of the vertexes is assumed to be clockwise, when d is larger than 0, the point is a concave vertex; when d is less than 0, the point is a convex vertex.
And step four, setting a coverage radius and determining an extension range.
Since the drawing area is a simulation result area, and a part of cells at the periphery of the drawing area also has a certain influence on the simulation result area, the drawing area needs to be expanded equidistantly to form an expanded polygonal area, which is hereinafter referred to as a simulation calculation area. And setting the coverage radius of the cell as L, and respectively making parallel lines to the outside of each side of the polygon, wherein the vertical distance between the two lines is L. As shown in FIG. 2, the region polygon A is drawn1A2A3A4A5After expansion, the simulation calculation area of the production is A1'A2'A3'A4'A5'. In addition, the distance L in the planar coordinate system is actually slightly larger than L in the geographic coordinate system. However, the slight enlargement of the simulation calculation area does not affect the simulation result, but is beneficial to the authenticity of the result. In order to reduce the actual amount of calculation, an approximation of the coverage radius is adopted.
And step five, calculating the vertex coordinates of the simulation calculation area.
At point AiRespectively drawing as starting points
Figure BDA0002666429650000071
And
Figure BDA0002666429650000072
and (5) vector quantity.
As shown in FIG. 3, since the distances L of the coverage radius are equal, that is, the straight-line distances from the target vertex to both sides are equal, as easily proven by the geometrical relationship, the angle beta is a vector
Figure BDA0002666429650000073
And
Figure BDA0002666429650000074
the included angle is formed, and only one point A exists in the bisector of the angle betai'(xi',yi') are respectively to
Figure BDA0002666429650000075
And
Figure BDA0002666429650000076
is L and angle theta is
Figure BDA0002666429650000077
And
Figure BDA0002666429650000078
the included angle is formed by the angle of the two sides,
Figure BDA0002666429650000079
is AiPoint to Ai' distance of points, derived from the geometric relationship:
Figure BDA00026664296500000710
Figure BDA00026664296500000711
is less than gamma
Figure BDA00026664296500000712
And the included angle between the angle and the horizontal coordinate X is less than or equal to 90 degrees, then:
if xi+1≠xi，
Figure BDA00026664296500000713
If xi+1＝xi，∠γ＝90°，
And because ═ δ ═ γ +. θ, the coordinate (x) of point Pp,yp) Satisfies the following formula
Figure BDA00026664296500000714
Figure BDA00026664296500000715
Solving to obtain:
Figure BDA00026664296500000716
Figure BDA00026664296500000717
the coordinates of four groups of points are obtained according to the formula, and the points are required to be satisfied
Figure BDA00026664296500000718
And
Figure BDA00026664296500000719
is equal and is L, so that the target points meeting the condition are always on the bisector of the angle beta, and only 2 are provided, one is a point inside the angle beta and is marked as Ai'(xi',yi') and the other is a point outside < beta > and is marked as Ai″(xi″,yi"). The specific screening methods are not described in more detail herein.
Finally, the root is removedA obtained by the above stepsiThe following can be easily concluded:
if the point is a concave point, the point expanded outward is Ai'(xi',yi')
If the point is a convex point, the point expanded outwards is Ai″(xi″,yi″)
And calculating the vertexes of the polygons of the simulation area in sequence according to the principle.
And step six, converting the plane coordinates into geographic coordinates.
The vertex coordinates of the simulation area calculated through the steps are plane coordinates, so that the vertex coordinates need to be converted into geographic coordinates. Thus, the simulation calculation area under a geographic coordinate system can be drawn. Drawing area A of the same shape and size1A2A3A4A5The general method results in a polygon A 'B' C 'D', as shown in FIG. 1, and the simulated calculation region obtained by the method described herein is the polygon A1'A2'A3'A4'A5', as shown in FIG. 2. Through comparison calculation, the area of the polygon A 'B' C 'D' is obviously larger than that of the polygon A1'A2'A3'A4'A5' area of. Because the coverage radius of the base station is generally fixed, the simulation calculation area obtained by the method is more refined, and the screened calculation parameters are more accurate. And finally, the geographical coordinate set of the simulation calculation area is applied to the simulation calculation program, and the calculation program can screen the required work parameters according to the calculation area, so that the efficiency of the simulation calculation is improved under the condition of ensuring the accuracy of the calculation.
The present invention provides a method for calculating and mapping a wireless network simulation area, and a plurality of methods and approaches for implementing the technical solution are provided, the above description is only a preferred embodiment of the present invention, it should be noted that, for those skilled in the art, a plurality of improvements and modifications may be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims (7)

1. A method for calculating and drawing a wireless network simulation area is characterized by comprising the following steps:
step 1, drawing a polygon on a map;
step 2, converting the polygon vertex from the geographic coordinate to a projection coordinate;
step 3, judging the concavity and convexity of the polygon vertex;
step 4, setting a coverage radius and determining an extension range;
step 5, calculating the vertex coordinates of the simulation calculation area;
and 6, converting the plane coordinates into geographic coordinates.
2. The method of claim 1, wherein step 1 comprises: continuously drawing N points which are not on the same straight line on a map, wherein N is more than or equal to 3, namely points 1 are connected with 2, 2 is connected with 3, … …, N is connected with 1, the points form a polygonal closed area, namely a drawing area, and the geographic coordinate of the ith vertex is (J)i,Wi)。
3. The method of claim 2, wherein step 2 comprises: converting the geographic coordinates of the polygon vertexes into geodetic coordinates, and converting the ith polygon vertex AiHas the coordinates of (x)i,yi) And i takes a value of 1-N.
4. The method of claim 3, wherein step 3 comprises: for the ith polygon vertex AiSetting (x)i+1,yi+1) Is AiWith reference to the coordinates of the adjacent vertices in the sequential direction, (x)i-1,yi-1) Is AiReferring to the adjacent vertex coordinates in the opposite order, then:
(1) when y isi≠yi+1And y isi≠yi-1When the temperature of the water is higher than the set temperature,
Figure FDA0002666429640000011
d is a vector
Figure FDA0002666429640000012
And
Figure FDA0002666429640000013
the slope difference of (a);
(2) when y isi＝yi-1When the temperature of the water is higher than the set temperature,
if xi>xi-1Get it
Figure FDA0002666429640000014
I.e. d>0；
If xi<xi-1Get it
Figure FDA0002666429640000015
I.e. d<0；
(3) When y isi＝yi+1When the temperature of the water is higher than the set temperature,
if xi+1>xiGet it
Figure FDA0002666429640000016
I.e. d<0；
If xi+1<xiGet it
Figure FDA0002666429640000021
I.e. d>0；
Therefore, if vertex A is setiThe reference order of (1) is counterclockwise, and when d is greater than 0, the point is a convex vertex; when d is less than 0, the point is a concave vertex;
if set to vertex AiWhen d is greater than 0, the point is a concave vertex; when d is less than 0, the point is a convex vertex.
5. The method of claim 4, wherein step 4 comprises: and setting the coverage radius of the cell as L, and respectively making parallel lines to the outside of each side of the polygon, wherein the vertical distance between the two lines is L, and the parallel lines are intersected to form an expanded polygon area, namely a simulation calculation area.
6. The method of claim 5, wherein step 5 comprises:
step 5-1, Point AiRespectively drawing as starting points
Figure FDA0002666429640000022
And
Figure FDA0002666429640000023
vector quantity;
step 5-2, taking the angle beta as a vector
Figure FDA0002666429640000024
And
Figure FDA0002666429640000025
the included angle is formed, and only one point A exists in the bisector of the angle betai'(xi',yi') are respectively to
Figure FDA0002666429640000026
And
Figure FDA0002666429640000027
is L and angle theta is
Figure FDA0002666429640000028
And
Figure FDA0002666429640000029
the included angle is formed by the angle of the two sides,
Figure FDA00026664296400000210
is AiPoint to AiDistance of points, derived from geometric relationshipsTo:
Figure FDA00026664296400000211
Figure FDA00026664296400000212
is less than gamma
Figure FDA00026664296400000213
And the included angle between the angle and the horizontal coordinate X is less than or equal to 90 degrees, then:
if xi+1≠xi，
Figure FDA00026664296400000214
If xi+1＝xi，∠γ＝90°，
Angle delta is
Figure FDA00026664296400000215
And
Figure FDA00026664296400000216
the included angle formed is then & lt delta & gt & lt gamma & lt theta & gt, then point Ai'(xi',yi') satisfies the following formula:
Figure FDA0002666429640000031
Figure FDA0002666429640000032
solving to obtain:
Figure FDA0002666429640000033
Figure FDA0002666429640000034
four groups of point coordinates are obtained according to the formula, but the four groups of point coordinates are also satisfied
Figure FDA0002666429640000035
And
Figure FDA0002666429640000036
is equal and is L, so that the target points meeting the condition are always on the bisector of the angle beta, and only 2 are provided, one is a point inside the angle beta and is marked as Ai'(xi',yi') and the other is a point outside < beta > and is marked as Ai”(xi”,yi”)；
Step 5-3, A obtained according to step 3iThe following results were obtained for the unevenness of (1):
if A isiIf the point is a concave point, the point expanded outward is Ai'(xi',yi')；
If A isiIs a convex point, the point expanded outwards is Ai”(xi”,yi”)；
And 5-4, sequentially calculating the top points of the simulation calculation areas according to the step 5-1 to the step 5-3.
7. The method of claim 6, wherein step 6 comprises: and (5) converting the plane coordinates into geographic coordinates according to the vertex coordinates of the simulation calculation area obtained by calculation in the step 5, so as to obtain the simulation calculation area in the geographic coordinate system.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100916474B1 (en) * 2009-04-28 2009-09-08 최준수 Methods of partitioning a region represented by contours into smaller polygonal zones and calculating data for digital elevation model and data for constructing geographical surfaces of the region, and a recording medium in which programs for implementing the methods are recorded
CN107527831A (en) * 2017-08-21 2017-12-29 武汉新芯集成电路制造有限公司 A kind of characterizing method of wafer torsion resistance
WO2018182938A1 (en) * 2017-03-07 2018-10-04 Styku, LLC Method and system for wireless ultra-low footprint body scanning
CN109522381A (en) * 2018-11-02 2019-03-26 长江空间信息技术工程有限公司(武汉) The hidden installation security detection method of building based on 3DGIS+BIM
CN109588059A (en) * 2016-05-13 2019-04-05 瑞典爱立信有限公司 The network architecture, method and apparatus for cordless communication network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100916474B1 (en) * 2009-04-28 2009-09-08 최준수 Methods of partitioning a region represented by contours into smaller polygonal zones and calculating data for digital elevation model and data for constructing geographical surfaces of the region, and a recording medium in which programs for implementing the methods are recorded
CN109588059A (en) * 2016-05-13 2019-04-05 瑞典爱立信有限公司 The network architecture, method and apparatus for cordless communication network
WO2018182938A1 (en) * 2017-03-07 2018-10-04 Styku, LLC Method and system for wireless ultra-low footprint body scanning
CN107527831A (en) * 2017-08-21 2017-12-29 武汉新芯集成电路制造有限公司 A kind of characterizing method of wafer torsion resistance
CN109522381A (en) * 2018-11-02 2019-03-26 长江空间信息技术工程有限公司(武汉) The hidden installation security detection method of building based on 3DGIS+BIM

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