CN108777849B - Indoor mirror virtual relay layout method and device - Google Patents
Indoor mirror virtual relay layout method and device Download PDFInfo
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- CN108777849B CN108777849B CN201810325619.8A CN201810325619A CN108777849B CN 108777849 B CN108777849 B CN 108777849B CN 201810325619 A CN201810325619 A CN 201810325619A CN 108777849 B CN108777849 B CN 108777849B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
Abstract
The invention provides an indoor mirror virtual relay layout method and device, which are provided by the embodiment of the invention, by acquiring the spatial coordinate information of the indoor virtual reflecting surfaces preset corresponding to all side walls, the spatial coordinate information of a transmitter and the spatial coordinate information of a preset receiver positioned in an indoor communication area; dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area; carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area; and obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, thereby determining the position and the size of the indoor virtual relay, facilitating the indoor accurate layout and greatly reducing the communication interruption probability.
Description
Technical Field
The invention relates to the technical field of relays, in particular to an indoor mirror virtual relay layout method and device.
Background
With the widespread application of the fourth generation mobile communication system (4G), more and more researchers, operators and equipment vendors are actively concerned about and push the (5G) development of the fifth generation mobile communication. The 5G communication aims at achieving a transmission rate of Gbps, and basically requires low delay and high reliability. The main technologies involved in 5G include millimeter wave, massive MIMO, beamforming, etc. The effective utilization of large unauthorized frequency bands (such as 60GHz) in millimeter waves is a fundamental means for realizing 5G high-speed transmission, and the short wavelength characteristic of millimeter waves can effectively reduce the size of an antenna array because the size of the antenna is in direct proportion to the wavelength of electromagnetic waves. Generally, beam forming is divided into analog domain beam forming and digital domain beam forming, and the like, and can generate directional gain, compensate high path loss in the millimeter wave communication process, and simultaneously reduce multipath interference and multi-user interference. Although millimeter-wave large-scale antennas and beamforming techniques have brought about a significant revolution to the development of 5G, the poor diffraction and penetration characteristics of millimeter waves make communication extremely vulnerable to interruption due to occlusion. In order to resist the shielding, a relay technology based on a millimeter wave large-scale antenna array is developed.
In the GSM system, Repeater (Repeater) is a simple relay technology, which can only be used for coverage area improvement, and does not contribute to cell capacity; in the LTE-Advanced system, relaying is one of the core technologies, and its main functions are: the coverage range is enlarged, the throughput is improved, and blindness is compensated. In a wireless network, a relay node introduces processing on a baseband signal, so that the relay can be divided into an Amplification and Forwarding (AF) relay and a Decoding and Forwarding (DF) relay. Traditional relays need complex signaling interaction to realize relay selection, data receiving and forwarding and the like, and meanwhile, the processing of baseband signals by the relay nodes can bring system delay increase and system throughput loss. As a node in the network, resource allocation of bandwidth, time frequency, power, and the like of the conventional relay is also a big problem.
Compared with the traditional relay, the virtual relay (mostly a strong reflector) provides a standby communication link for the receiver by utilizing the high-frequency electromagnetic wave photoperiodism through the first-order reflection and the second-order reflection of the strong reflector. The virtual relay overcomes the defects of the traditional relay, but the general reflector generates the absorption loss of more than or equal to 2dB to the signal. In different application scenarios, no suitable solution has been given by the industry to the problem of how to lay virtual relays.
Disclosure of Invention
The invention provides an indoor mirror virtual relay layout method and device, which are used for solving the problem that the communication is influenced because the virtual relay layout is not reasonable enough in the prior art.
In a first aspect, an embodiment of the present invention provides an indoor mirror virtual relay layout method, including:
acquiring indoor space coordinate information of virtual reflecting surfaces preset corresponding to each side wall;
acquiring space coordinate information of an indoor preset transmitter and space coordinate information of a preset receiver in an indoor communication area;
dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area;
carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area;
and obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, wherein the layout area is the layout position and size of the mirror surface virtual relay.
Optionally, the dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter, and the space coordinate information of the communication area includes:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
obtaining the space distance between all coordinate points in the communication area and the space coordinate point of each virtual transmitter according to the space coordinate information of the communication area and the space coordinate information of the virtual transmitters;
and determining the communication sub-area of each virtual reflecting surface to which each coordinate point belongs according to the space distance.
Optionally, the obtaining, according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter, and the space coordinate information of the polygonal area, a layout area located on the virtual reflecting surface includes:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
and obtaining connecting lines between all coordinate points of the polygonal area and the space coordinate points of the virtual transmitters according to the space coordinate information of the polygonal area and the space coordinate information of the corresponding virtual transmitters, and obtaining intersection points of all the connecting lines on the virtual reflecting surface, wherein all the intersection points form an intersection surface, and the intersection surface is the layout area.
Optionally, when the side wall is a plane and the side wall is overlapped with the virtual reflecting surface, the layout region is a mirror virtual relay and is arranged on the side wall.
Optionally, the method further comprises:
when the side walls are in the vertical direction, the lengths of the bottom edges of the side walls are the same, the side walls coincide with the virtual reflecting surfaces, and the transmitter is located at the indoor central position, the step of acquiring the communication sub-area comprises the following steps:
acquiring a vertical projection point of the transmitter on an indoor floor according to the space coordinate information of the transmitter;
obtaining a connecting line between the two points according to the intersection point of the projection point and the bottom edge of the adjacent side wall, wherein the connecting line divides an indoor area into indoor sub-areas;
and acquiring an intersection region between the indoor sub-region and the communication region, wherein the intersection region is the communication sub-region corresponding to the side wall.
In a second aspect, an embodiment of the present invention provides an indoor mirror virtual relay layout apparatus, including:
the first acquisition module is used for acquiring the spatial coordinate information of the virtual reflecting surfaces preset corresponding to each side wall indoors;
the second acquisition module is used for acquiring the spatial coordinate information of the indoor preset transmitter and the spatial coordinate information of the preset receiver in the indoor communication area;
the dividing module is used for dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area;
the conversion module is used for carrying out polygon approximation on each communication subarea, obtaining a polygon area in each communication subarea and obtaining space coordinate information of the polygon area;
and the execution module is used for obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, wherein the layout area is the layout position and size of the mirror surface virtual relay.
Optionally, the dividing module is specifically configured to:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
obtaining the space distance between all coordinate points in the communication area and the space coordinate point of each virtual transmitter according to the space coordinate information of the communication area and the space coordinate information of the virtual transmitters;
and determining the communication sub-area of each virtual reflecting surface to which each coordinate point belongs according to the space distance.
Optionally, the execution module is specifically configured to:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
and obtaining connecting lines between all coordinate points of the polygonal area and the space coordinate points of the virtual transmitters according to the space coordinate information of the polygonal area and the space coordinate information of the corresponding virtual transmitters, and obtaining intersection points of all the connecting lines on the virtual reflecting surface, wherein all the intersection points form an intersection surface, and the intersection surface is the layout area.
Optionally, when the side wall is a plane and the side wall is overlapped with the virtual reflecting surface, the layout region is a mirror virtual relay and is arranged on the side wall.
Optionally, when the side walls are in the vertical direction, the lengths of the bottom sides of the side walls are the same, the side walls coincide with the virtual reflecting surface, and the transmitter is located at the indoor central position, the dividing module is specifically configured to:
acquiring a vertical projection point of the transmitter on an indoor floor according to the space coordinate information of the transmitter;
obtaining a connecting line between the two points according to the intersection point of the projection point and the bottom edge of the adjacent side wall, wherein the connecting line divides an indoor area into indoor sub-areas;
and acquiring an intersection region between the indoor sub-region and the communication region, wherein the intersection region is the communication sub-region corresponding to the side wall.
According to the technical scheme, the indoor mirror virtual relay layout method and device provided by the embodiment of the invention have the advantages that the spatial coordinate information of the preset virtual reflecting surfaces corresponding to the side walls in the room, the spatial coordinate information of the preset transmitters in the room and the spatial coordinate information of the preset receivers in the indoor communication area are obtained; dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area; carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area; the layout area on the virtual reflecting surface is obtained according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, so that the layout position and the size of the indoor virtual relay are determined, the indoor accurate layout is facilitated, the receiving signal-to-noise ratio of a user is improved, and the communication interruption probability is greatly reduced.
Drawings
Fig. 1 is a schematic flow chart of an indoor mirror virtual relay layout method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of indoor mirror virtual relay arrangement to provide a communication link;
fig. 3 is a schematic view of an indoor virtual relay arrangement scenario according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of an indoor mirror virtual relay layout method according to an embodiment of the present invention;
fig. 5 is a scene schematic diagram of an indoor mirror virtual relay layout method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an indoor mirror virtual relay layout apparatus according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Fig. 1 shows an indoor virtual relay layout method according to an embodiment of the present invention, including:
and S11, acquiring the indoor space coordinate information of the virtual reflecting surfaces preset corresponding to the side walls.
S12, acquiring space coordinate information of an indoor preset transmitter and space coordinate information of a preset receiver in an indoor communication area;
s13, dividing the communication area into communication sub-areas of each virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the communication area;
s14, carrying out polygon approximation on each communication subarea, obtaining a polygon area in each communication subarea, and obtaining space coordinate information of the polygon area;
and S15, obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, wherein the layout area is the layout position and size of the mirror virtual relay.
In view of the above steps, it should be noted that, in the embodiment of the present invention, as shown in fig. 2, a schematic diagram of providing a communication link for indoor mirror virtual relay is shown, and virtual relay is mostly a strong reflector, which provides an alternate communication link for a receiver through first-order and second-order reflection of the strong reflector by using high-frequency electromagnetic wave photo-similarity. In the embodiment of the present invention, the mirror is used as the virtual relay, since the strong reflector has an absorption loss of more than 2dB when used as the virtual relay, and the absorption loss of the mirror is 0 when used as the virtual relay.
The virtual relays are distributed in the indoor space to block signals by indoor barriers, and the indoor virtual relays are distributed according to the distribution principle of short distance, multiple mirror surfaces and side walls. In the laying process, the position and the direction of the virtual relay (mirror surface) cannot be accurately set in the field. Thus, the present application determines the exact location and orientation of the virtual relay indoors based on an overall analysis of the data.
Because the virtual relays are distributed in the indoor space, an original point needs to be preset, and the space scanning technology is adopted to obtain the space coordinate information of each indoor space point relative to the original point. Therefore, for the entire indoor space, coordinate information of the side walls, the floor, the ceiling, and the area space surrounded by the surfaces is required.
In the embodiment of the present invention, the indoor transmitter needs to be configured at a location point indoors, and acquire the spatial coordinate information of the transmitter (access point AP or base station BS). In the indoor environment, the active range set by the receiver (user equipment UE) is used as a communication area, and spatial coordinate information of the communication area is acquired. In general, coordinate information of a coordinate point where the communication area is located on the floor is taken as spatial coordinate information of the communication area.
In reality, the indoor space has various configurations, such as side wall inclination, side wall radian and the like, and in order to better arrange the virtual relay, a virtual reflecting surface can be fictionally arranged in an indoor space coordinate system, and the virtual reflecting surface can be a reflecting surface in a vertical direction or a certain angle generally and is firstly arranged as a virtual side wall.
If the virtual reflecting surface is in the vertical direction and the side wall has a radian, the position and the size of the arranged mirror surface are obtained on the virtual reflecting surface by the arrangement method, the mirror surface is arranged according to the obtained position and the size of the mirror surface in the real process, and the mirror surface is separated from the side wall.
If the virtual reflecting surface is in the vertical direction or has a certain inclination angle, the position and the size of the mirror surface arranged on the virtual reflecting surface are obtained by the arrangement method, the virtual reflecting surface is overlapped with the side wall in the display process, and the mirror surface is directly placed on the side wall.
In the embodiment of the present invention, the step of dividing the communication area into communication sub-areas of the respective virtual reflecting surfaces according to the spatial coordinate information of the virtual reflecting surfaces, the spatial coordinate information of the transmitter, and the spatial coordinate information of the communication area may include:
s131, obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
s132, obtaining the space distances between all coordinate points in the communication area and the space coordinate points of each virtual transmitter according to the space coordinate information of the communication area and the space coordinate information of the virtual transmitters;
and S133, determining the communication sub-area of each virtual reflecting surface to which each coordinate point belongs according to the space distance.
With respect to the above step S131 to step S133, it should be noted that, since the mirror surface has a symmetric characteristic, the system obtains the spatial coordinate information of the virtual transmitter of the transmitter using each virtual reflection surface as a symmetric surface according to the spatial coordinate information of each virtual reflection surface and the spatial coordinate information of the transmitter.
Due to the fact that the short-distance layout principle is adopted, the system needs to obtain the space distances between all coordinate points in the communication area and the space coordinate points of each virtual transmitter according to the space coordinate information of the communication area and the space coordinate information of the virtual transmitters. And judging that the space distance from a certain space coordinate point to the space coordinate point of the virtual transmitter is minimum, and attributing the space coordinate point to a space coordinate point in a communication sub-region corresponding to the virtual reflector. And when all the spatial coordinate points in the communication area are divided, obtaining the communication sub-area.
And carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain the space coordinate information of the polygon area. The polygon approximation is performed on a certain area, and the area of the polygonal area is close to the area of the communication sub-area as much as possible, and the polygon approximation processing process is a mature technology and is not described herein again.
In an embodiment of the present invention, the step of obtaining the layout region located on the virtual reflecting surface according to the spatial coordinate information of the virtual reflecting surface, the spatial coordinate information of the transmitter, and the spatial coordinate information of the polygon region may include:
s151, obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
s152, obtaining connecting lines between all coordinate points of the polygonal area and the space coordinate points of the virtual transmitters according to the space coordinate information of the polygonal area and the space coordinate information of the corresponding virtual transmitters, and obtaining intersection points of all the connecting lines on the virtual reflecting surface, wherein all the intersection points form an intersection surface, and the intersection surface is the layout area.
With respect to the above step S151 and step S152, it should be noted that the spatial coordinate information of the virtual transmitter of the transmitter, which uses each virtual reflection surface as a symmetry plane, is obtained according to the spatial coordinate information of each virtual reflection surface and the spatial coordinate information of the transmitter. And obtaining connecting lines between all coordinate points of the polygonal area and the space coordinate points of the virtual transmitters according to the space coordinate information of the polygonal area and the space coordinate information of the corresponding virtual transmitters, and obtaining intersection points of all the connecting lines on the virtual reflecting surface, wherein all the intersection points form an intersection surface, and the intersection surface is the layout area. The shape, size and position of the intersecting surface are determined, and the layout position and size of the layout region (mirror surface) are obtained.
As shown in fig. 3, Tx is the transmitter, Tx' is the Mirror point of the transmitter relative to the Mirror, Rx is the receiver, the dashed box is the polygon area, and Mirror is the Mirror virtual relay. The processing procedures of the above steps S151 and S152 can be visually seen from fig. 3.
The indoor mirror virtual relay layout method provided by the embodiment of the invention comprises the steps of obtaining indoor space coordinate information of virtual reflecting surfaces preset corresponding to each side wall, indoor space coordinate information of a preset transmitter and space coordinate information of a preset receiver positioned in an indoor communication area; dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area; carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area; the layout area on the virtual reflecting surface is obtained according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, so that the position and the size of the indoor virtual relay are determined, the indoor accurate layout is facilitated, the receiving signal-to-noise ratio of a user is improved, and the communication interruption probability is greatly reduced.
Fig. 4 shows a method for laying an indoor mirror virtual relay, which is provided by an embodiment of the present invention, and is applicable to a scenario in which the side walls are in a vertical direction, the lengths of the bottom sides of the side walls are the same, the side walls are overlapped with the virtual reflection surfaces, and the transmitter is located at an indoor central position. The method comprises the following steps:
and S21, acquiring the indoor space coordinate information of the virtual reflecting surfaces preset corresponding to the side walls.
S22, acquiring space coordinate information of an indoor preset transmitter and space coordinate information of a preset receiver in an indoor communication area;
s23, acquiring a vertical projection point of the transmitter on an indoor floor according to space coordinate information of the transmitter, and acquiring a connecting line between two points according to an intersection point of the projection point and the bottom edge of the adjacent side wall, wherein the connecting line divides an indoor area into indoor sub-areas and acquires an intersection area between the indoor sub-areas and the communication area, and the intersection area is a communication sub-area corresponding to the side wall;
s24, carrying out polygon approximation on each communication subarea, obtaining a polygon area in each communication subarea, and obtaining space coordinate information of the polygon area;
and S25, obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, wherein the layout area is a mirror virtual relay.
Regarding the above steps of this embodiment, it should be noted that the principles of steps S21, S22, S24, and S25 are the same as those of steps S11, S12, S14, and S15 of the above embodiment, and are not described again here.
For step S23, it should be noted that, as shown in fig. 5, the indoor layout in fig. 5 is an equilateral pentagon, a dashed circle in fig. 5 is a communication area, a projection point of the transmitter in the room is obtained according to the space coordinate information of the transmitter, a connection line between two points is obtained according to the intersection point of the projection point and the bottom edge of the adjacent side wall, the connection line divides the indoor area into indoor sub-areas, and an intersection area between the indoor sub-areas and the communication area is obtained, as shown in fig. 1, 2, 3, 4, and 5, the intersection area is a sub-area communication corresponding to the side wall.
As can be seen from fig. 5, the communication sub-area is subjected to polygon approximation to obtain a polygon, and then a mirror virtual relay as shown in the figure is obtained according to the polygon. In fig. 5 mirror is a virtual relay.
The indoor mirror virtual relay layout method provided by the embodiment of the invention comprises the steps of obtaining indoor space coordinate information of virtual reflecting surfaces preset corresponding to each side wall, indoor space coordinate information of a preset transmitter and space coordinate information of a preset receiver positioned in an indoor communication area; acquiring a projection point of a transmitter in a room according to space coordinate information of the transmitter, and acquiring a connecting line between two points according to the projection point and an intersection point of the bottom edges of adjacent side walls, wherein the connecting line divides the indoor area into indoor sub-areas and acquires an intersection area between the indoor sub-areas and the communication area, and the intersection area is a communication sub-area corresponding to the side wall; carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area; the layout area on the virtual reflecting surface is obtained according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, so that the position and the size of the indoor virtual relay are determined, the indoor accurate layout is facilitated, the receiving signal-to-noise ratio of a user is improved, and the communication interruption probability is greatly reduced.
Fig. 6 shows an indoor virtual relay layout apparatus according to an embodiment of the present invention, which includes a first obtaining module 31, a second obtaining module 32, a dividing module 33, a converting module 34, and an executing module 35, where:
the first obtaining module 31 is configured to obtain spatial coordinate information of virtual reflecting surfaces preset in the room corresponding to each side wall;
a second obtaining module 32, configured to obtain spatial coordinate information of an indoor preset transmitter and spatial coordinate information of a preset receiver located in an indoor communication area;
the dividing module 33 is configured to divide the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter, and the space coordinate information of the communication area;
the conversion module 34 is configured to perform polygon approximation on each communication sub-region, obtain a polygon region in each communication sub-region, and obtain space coordinate information of the polygon region;
and the execution module 35 is configured to obtain a layout region located on the virtual reflecting surface according to the spatial coordinate information of the virtual reflecting surface, the spatial coordinate information of the transmitter, and the spatial coordinate information of the polygonal region, where the layout region is a layout position and a size of the mirror virtual relay.
Since the principle of the apparatus according to the embodiment of the present invention is the same as that of the method according to the above embodiment, further details are not described herein for further explanation.
It should be noted that, in the embodiment of the present invention, the relevant functional module may be implemented by a hardware processor (hardware processor).
According to the indoor mirror virtual relay layout device provided by the embodiment of the invention, the spatial coordinate information of the indoor virtual reflecting surfaces preset corresponding to all side walls, the spatial coordinate information of the indoor preset transmitter and the spatial coordinate information of the preset receiver positioned in an indoor communication area are obtained; dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area; carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area; the layout area on the virtual reflecting surface is obtained according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, so that the position and the size of the indoor virtual relay are determined, the indoor accurate layout is facilitated, the receiving signal-to-noise ratio of a user is improved, and the communication interruption probability is greatly reduced.
The indoor mirror virtual relay layout device provided by the embodiment of the invention is suitable for a scene that the side walls are in the vertical direction, the bottom edges of the side walls are the same in length, the side walls are superposed with the virtual reflecting surfaces, and the transmitter is positioned at the indoor central position. To this end, the device comprises a first acquisition module, a second acquisition module, a division module, a conversion module and an execution module, wherein:
the first acquisition module is used for acquiring the spatial coordinate information of the virtual reflecting surfaces preset corresponding to the side walls indoors.
The second acquisition module is used for acquiring the spatial coordinate information of the indoor preset transmitter and the spatial coordinate information of the preset receiver in the indoor communication area;
the dividing module is used for acquiring a vertical projection point of the transmitter on an indoor floor according to space coordinate information of the transmitter, acquiring a connecting line between two points according to the projection point and an intersection point of the bottom edges of adjacent side walls, dividing an indoor area into indoor sub-areas by the connecting line, and acquiring an intersection area between the indoor sub-areas and the communication area, wherein the intersection area is a communication sub-area corresponding to the side wall;
the conversion module is used for carrying out polygon approximation on each communication subarea, obtaining a polygon area in each communication subarea and obtaining space coordinate information of the polygon area;
and the execution module is used for obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, wherein the layout area is the layout position and size of the mirror surface virtual relay.
Since the principle of the apparatus according to the embodiment of the present invention is the same as that of the method according to the above embodiment, further details are not described herein for further explanation.
It should be noted that, in the embodiment of the present invention, the relevant functional module may be implemented by a hardware processor (hardware processor).
The indoor mirror virtual relay layout method provided by the embodiment of the invention comprises the steps of obtaining indoor space coordinate information of virtual reflecting surfaces preset corresponding to each side wall, indoor space coordinate information of a preset transmitter and space coordinate information of a preset receiver positioned in an indoor communication area; acquiring a projection point of a transmitter in a room according to space coordinate information of the transmitter, and acquiring a connecting line between two points according to the projection point and an intersection point of the bottom edges of adjacent side walls, wherein the connecting line divides the indoor area into indoor sub-areas and acquires an intersection area between the indoor sub-areas and the communication area, and the intersection area is a communication sub-area corresponding to the side wall; carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area; the layout area on the virtual reflecting surface is obtained according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, so that the position and the size of the indoor virtual relay are determined, the indoor accurate layout is facilitated, the receiving signal-to-noise ratio of a user is improved, and the communication interruption probability is greatly reduced.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Those of ordinary skill in the art will understand that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.
Claims (6)
1. A virtual relay layout method for an indoor floor is characterized by comprising the following steps:
acquiring indoor space coordinate information of virtual reflecting surfaces preset corresponding to each side wall;
acquiring space coordinate information of an indoor preset transmitter and space coordinate information of a preset receiver in an indoor communication area;
dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area;
carrying out polygon approximation on each communication subarea to obtain a polygon area in each communication subarea and obtain space coordinate information of the polygon area;
obtaining a layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter and the space coordinate information of the polygonal area, wherein the layout area is the layout position and size of the mirror surface virtual relay;
the dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area includes:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
obtaining the space distance between all coordinate points in the communication area and the space coordinate point of each virtual transmitter according to the space coordinate information of the communication area and the space coordinate information of the virtual transmitters;
determining communication sub-regions of the virtual reflecting surfaces to which the coordinate points belong according to the space distance;
the obtaining of the layout area on the virtual reflecting surface according to the space coordinate information of the virtual reflecting surface, the space coordinate information of the transmitter, and the space coordinate information of the polygonal area includes:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
and obtaining connecting lines between all coordinate points of the polygonal area and the space coordinate points of the virtual transmitters according to the space coordinate information of the polygonal area and the space coordinate information of the corresponding virtual transmitters, and obtaining intersection points of all the connecting lines on the virtual reflecting surface, wherein all the intersection points form an intersection surface, and the intersection surface is the layout area.
2. The method of claim 1, wherein when the sidewall is planar and the sidewall coincides with the virtual reflecting surface, the layout area is a mirror virtual relay disposed on the sidewall.
3. The method of claim 1, further comprising:
when the side walls are in the vertical direction, the lengths of the bottom edges of the side walls are the same, the side walls coincide with the virtual reflecting surfaces, and the transmitter is located at the indoor central position, the step of acquiring the communication sub-area comprises the following steps:
acquiring a vertical projection point of the transmitter on an indoor floor according to the space coordinate information of the transmitter;
obtaining a connecting line between the two points according to the intersection point of the projection point and the bottom edge of the adjacent side wall, wherein the connecting line divides an indoor area into indoor sub-areas;
and acquiring an intersection region between the indoor sub-region and the communication region, wherein the intersection region is the communication sub-region corresponding to the side wall.
4. The utility model provides a device is laid to indoor mirror virtual relay which characterized in that includes:
the first acquisition module is used for acquiring the spatial coordinate information of the virtual reflecting surfaces preset corresponding to each side wall indoors;
the second acquisition module is used for acquiring the spatial coordinate information of the indoor preset transmitter and the spatial coordinate information of the preset receiver in the indoor communication area;
the dividing module is used for dividing the communication area into communication sub-areas of the virtual reflecting surfaces according to the space coordinate information of the virtual reflecting surfaces, the space coordinate information of the transmitter and the space coordinate information of the communication area;
the conversion module is used for carrying out polygon approximation on each communication subarea, obtaining a polygon area in each communication subarea and obtaining space coordinate information of the polygon area;
the system comprises an execution module, a virtual reflection surface and a polygon area, wherein the execution module is used for obtaining a layout area positioned on the virtual reflection surface according to the space coordinate information of the virtual reflection surface, the space coordinate information of a transmitter and the space coordinate information of the polygon area, and the layout area is the layout position and size of a mirror surface virtual relay;
wherein the dividing module is specifically configured to:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
obtaining the space distance between all coordinate points in the communication area and the space coordinate point of each virtual transmitter according to the space coordinate information of the communication area and the space coordinate information of the virtual transmitters;
determining communication sub-regions of the virtual reflecting surfaces to which the coordinate points belong according to the space distance;
wherein the execution module is specifically configured to:
obtaining the space coordinate information of the virtual transmitter of which the transmitter takes each virtual reflecting surface as a symmetrical surface according to the space coordinate information of each virtual reflecting surface and the space coordinate information of the transmitter;
and obtaining connecting lines between all coordinate points of the polygonal area and the space coordinate points of the virtual transmitters according to the space coordinate information of the polygonal area and the space coordinate information of the corresponding virtual transmitters, and obtaining intersection points of all the connecting lines on the virtual reflecting surface, wherein all the intersection points form an intersection surface, and the intersection surface is the layout area.
5. The apparatus of claim 4, wherein when the sidewall is planar and the sidewall coincides with the virtual reflective surface, the layout area is a mirror virtual relay disposed on the sidewall.
6. The apparatus according to claim 4, wherein when the side walls are in a vertical direction, the lengths of the bottom edges of the side walls are the same, the side walls are overlapped with the virtual reflecting surface, and the transmitter is located at an indoor central position, the dividing module is specifically configured to:
acquiring a vertical projection point of the transmitter on an indoor floor according to the space coordinate information of the transmitter;
obtaining a connecting line between the two points according to the intersection point of the projection point and the bottom edge of the adjacent side wall, wherein the connecting line divides an indoor area into indoor sub-areas;
and acquiring an intersection region between the indoor sub-region and the communication region, wherein the intersection region is the communication sub-region corresponding to the side wall.
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