CN115988516A - Wireless Mesh network and access point planning method - Google Patents
Wireless Mesh network and access point planning method Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a planning method of a wireless Mesh network access point, which specifically comprises the following steps: the method comprises the steps of obtaining the geographic position and network parameters of wireless equipment in a wireless access area, wherein the network parameters comprise the communication bandwidth and the signal sensitivity of each wireless equipment, calculating the weight of each wireless equipment according to the network parameters, calculating the wireless network centroid of the wireless access area according to the weight and the geographic position of each wireless equipment, and taking the wireless network centroid as the access point position of the wireless access area. According to the planning method of the wireless mesh network access point, the planned access point not only considers the geographic position of the wireless equipment, but also weights the geographic position according to the network parameters of each equipment, so that the access point is arranged at the centroid of the wireless access area, the overall communication performance of all the wireless equipment in the wireless access area is optimal, and the planning method has better overall communication performance compared with the traditional method.
Description
Technical Field
The invention belongs to the technical field of wireless networking, and particularly relates to a wireless Mesh network and an access point planning method.
Background
The wireless Mesh networking technology has been widely applied to the field of internet of things communication, in practical application scenarios, all wireless devices are scattered in different geographic positions, and in order to improve the overall communication performance of the wireless devices in a wireless access area, the position planning of an access point is particularly important.
Currently, two methods are mainly used for planning access points:
dividing a wireless access area by using a mesh or cellular mode, and directly arranging an access point at the central position of each mesh or cell;
the positions of all wireless devices within the wireless access area are determined, and then the geometric center of the geometric figure formed by all the wireless devices is used as an access point on the premise of covering all the wireless devices.
However, because the performance and access parameters of each wireless device are different, the above two methods cannot well solve the problem of access point planning of the internet of things device, and even if the communication distances of all devices are successfully covered, it cannot be ensured that the communication effect of different types of wireless devices is good.
Therefore, a wireless Mesh network and an access point planning method are needed, which can ensure that all different types of wireless devices in a wireless access area can operate with higher communication quality, and improve the overall communication performance of the wireless devices in the wireless access area.
Disclosure of Invention
Based on the above-mentioned shortcomings and drawbacks of the prior art, an object of the present invention is to at least solve one or more of the above-mentioned problems of the prior art, in other words, to provide a wireless Mesh network and an access point planning method that satisfy one or more of the above-mentioned needs.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for planning an access point of a wireless Mesh network, including:
s1, acquiring the geographic position and network parameters of wireless equipment in a wireless access area, wherein the network parameters comprise the communication bandwidth and the signal sensitivity of each piece of wireless equipment;
s2, calculating the weight of each wireless device according to the network parameters;
s3, calculating the wireless network centroid coordinate of the wireless access area according to the weight and the geographic position of each wireless device;
and S4, taking the wireless network centroid coordinate as the position of the access point in the wireless access area.
As a preferable scheme, before the step S1, the method further comprises the steps of:
s0, planning a grid, and dividing a plurality of wireless access areas, wherein each wireless access area comprises a plurality of wireless devices.
As a preferable scheme, the step S2 specifically includes the following steps:
s21, counting the maximum communication bandwidth and the minimum signal sensitivity of all wireless devices;
s22, for each wireless device, calculating to obtain a communication bandwidth parameter according to the maximum communication bandwidth and the communication bandwidth of the wireless device;
s23, for each wireless device, calculating to obtain a signal sensitivity parameter according to the minimum signal sensitivity and the signal sensitivity of the wireless device;
and S24, calculating the weight of each wireless device according to the communication bandwidth parameter and the signal sensitivity parameter of the wireless device.
As a further preferable scheme, in step S24, the calculating to obtain the total weight according to the communication bandwidth parameter and the signal sensitivity parameter of the wireless device specifically includes:
setting a communication bandwidth weighted value and a signal sensitivity weighted value;
weighting the communication bandwidth parameters by the communication bandwidth weight values, weighting the signal sensitivity parameters by the signal sensitivity weight values, and adding the weighted communication bandwidth parameters and the weighted signal sensitivity parameters to obtain the weight of the wireless equipment.
As a preferable scheme, the step S3 specifically includes the following steps:
weighting the longitude of the geographic position of each wireless device by the weight of each wireless device to obtain a longitude coordinate of a centroid of the wireless access area;
weighting the latitude of the geographic position of each wireless device according to the weight of each wireless device to obtain a latitude coordinate of a centroid of a wireless access area;
and combining the longitude coordinate and the latitude coordinate to obtain a wireless area centroid coordinate of the wireless access area.
In a second aspect, the present invention further provides a wireless Mesh network, including an access point and a plurality of wireless devices, which are located in a wireless access area, and a location of the access point is calculated by using any one of the above-mentioned wireless Mesh network access point planning methods.
Compared with the prior art, the invention has the beneficial effects that:
according to the planning method of the wireless mesh network access point, the planned access point not only considers the geographic position of the wireless equipment, but also weights the geographic position according to the network parameters of each equipment, so that the access point is arranged at the centroid of the wireless access area, the overall communication performance of all the wireless equipment in the wireless access area is optimal, the access point is directly arranged at the geometric center of the wireless access area by the traditional planning method, and compared with the access point planned by the method, the access point has better overall communication performance.
According to the wireless mesh network, the access point is arranged at the centroid of the wireless access area, so that the wireless mesh network has better overall communication performance in the wireless access area.
Drawings
Fig. 1 is a flow chart of a method for planning an access point of a wireless Mesh network according to the present invention;
fig. 2 is a schematic diagram of the distribution of wireless access devices in a wireless access area of the present invention;
FIG. 3 is a schematic diagram of the centroid calculation for a wireless access area of the present invention;
FIG. 4 is a schematic diagram of the division of step S0 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
In the following description, numerous embodiments of the present application are provided, and different embodiments may be substituted or combined in any combination, and thus the present application is intended to cover all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes the feature A, B, C and another embodiment includes the feature B, D, then this application should also be considered to include embodiments that include all other possible combinations of one or more of A, B, C, D, although this embodiment may not be explicitly recited in text below.
The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than the order described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
An embodiment of the present application provides a method for planning an access point of a wireless Mesh network, where a flowchart is shown in fig. 1, and the method specifically includes:
s1, acquiring the geographic position and network parameters of wireless equipment in a wireless access area, wherein the network parameters comprise the communication bandwidth and the signal sensitivity of each piece of wireless equipment.
In step S1, all wireless devices in the wireless access area need to be counted according to the range of the defined wireless access area, and as shown in fig. 2, a schematic distribution diagram of wireless access devices in a defined hexagonal wireless access area is shown.
The statistics of the wireless devices specifically include the geographic location and network parameters of each device, the network parameters include the communication bandwidth and signal sensitivity of the wireless device, the communication bandwidth and the signal sensitivity are used for calculating the data transceiving capacity of each wireless device, and then the communication performance between the wireless device and the access point is determined according to the data transceiving capacity.
Specifically, the geographic location of a wireless device may be represented by (x, y) coordinates, where x represents a latitude coordinate and y represents a longitude coordinate of the geographic location of the wireless device.
And S2, calculating the weight of each wireless device according to the network parameters.
S3, calculating the wireless network centroid coordinates of the wireless access area according to the weight and the geographic position of each wireless device;
and S4, taking the wireless network centroid coordinate as the position of the access point in the wireless access area.
In a further embodiment, the step S2 specifically includes the following steps:
s21, counting the maximum communication bandwidth and the minimum signal sensitivity of all wireless devices;
s22, for each wireless device, calculating to obtain a communication bandwidth parameter according to the maximum communication bandwidth and the communication bandwidth of the wireless device;
s23, calculating a signal sensitivity parameter for each wireless device according to the minimum signal sensitivity and the signal sensitivity of the wireless device;
and S24, for each wireless device, calculating the weight of the wireless device according to the communication bandwidth parameter and the signal sensitivity parameter of the wireless device.
As a further preferred embodiment of the foregoing embodiment, in step S24, the calculating a total weight according to the communication bandwidth parameter and the signal sensitivity parameter of the wireless device specifically includes:
setting a communication bandwidth weighted value and a signal sensitivity weighted value;
weighting the communication bandwidth parameters by the communication bandwidth weight values, weighting the signal sensitivity parameters by the signal sensitivity weight values, and adding the weighted communication bandwidth parameters and the weighted signal sensitivity parameters to obtain the weight of the wireless equipment.
After the above improvement, in this embodiment, the step S2 is specifically implemented as the following process:
based on the specific implementation of the step S1, the geographical location of each wireless device is represented by (x, y), and the communication bandwidth of each wireless device is obtainedpAnd signal sensitivitysThe communication bandwidth of the ith wireless device isp i Signal sensitivity ofs i 。
S21, counting the communication bandwidths and the signal sensitivities of all the wireless devices, and finding out the maximum value in the communication bandwidths as the maximum communication bandwidthp max (ii) a And finding the minimum value among the signal sensitivities as the minimum signal sensitivitys min 。
S22, calculating the communication bandwidth parameter of each wireless device, specifically, calculating the communication bandwidth parameter of the ith wireless device according to a formulap i /p max And (4) calculating.
S23, calculating the signal sensitivity of each wireless deviceParameters, in particular, signal sensitivity parameters of the ith wireless device are formulateds i /s min And (4) calculating.
S24, setting a communication bandwidth weighted valuec p And signal sensitivity weighted valuec s Weighted value of communication bandwidthc p Weighting the communication bandwidth parameters by the signal sensitivity weightc s And weighting the signal sensitivity parameters, and adding the weighted communication bandwidth parameters and the weighted signal sensitivity parameters to obtain the weight of the wireless equipment.
After the above processes are combined, the weight calculation formula of the ith wireless device is as follows:
in addition, in the above embodiments, the communication bandwidth weight valuec p Is 1, signal sensitivity weight valuec s A preferred value of (3) is 0.5.
After the weight of each wireless device is obtained in step S2, the weight of each wireless device in the wireless access area is used to calculate the centroid of the wireless area in the whole wireless access area, in an optimal case, step S3 specifically includes the following steps:
weighting the latitude of the geographic position of each wireless device according to the weight of each wireless device to obtain a latitude coordinate of a centroid of a wireless access area;
weighting the longitude of the geographic position of each wireless device by the weight of each wireless device to obtain a longitude coordinate of a centroid of the wireless access area;
and combining the latitude coordinates and the longitude coordinates to obtain the wireless area centroid coordinates of the wireless access area.
One specific implementation of the above process is as follows:
fig. 3 is a schematic diagram illustrating the centroid calculation of the wireless area in the present embodiment, and based on the weights of the wireless devices already calculated in step S2, the positions and the weight distributions of the wireless devices in a wireless access area with wireless devices 1-5 are shown in the figure.
The calculation formula of the latitude coordinate of the centroid in the wireless access area is specifically as follows:
the calculation formula of the longitude coordinate of the centroid specifically comprises the following steps:
the two calculations weight the longitude and latitude coordinates of each wireless device in the wireless access area with the weight of the wireless device and divide by the total weight. Therefore, the communication capacity of the wireless equipment is taken as the density, and the weighted center point of the whole wireless access area, which comprehensively considers the communication capacity in the latitude and longitude directions, is obtained. And after reaching the weighted central points in the latitude and longitude directions, synthesizing the weighted central points to obtain the wireless network centroid coordinates of the whole wireless access area.
The wireless network centroid synthetically considers the communication capability of each wireless device, thereby ensuring the optimal overall communication capability when distributing a plurality of different types of wireless devices in the whole wireless access area.
And after the wireless network centroid coordinates are obtained, step S4 is executed, and the wireless network centroid coordinates are used as the installation position of the access point.
According to the planning method of the wireless mesh network access point, the planned access point not only considers the geographic position of the wireless equipment, but also weights the geographic position according to the network parameters of each equipment, so that the access point is arranged at the centroid of the wireless access area, and the overall communication performance of all the wireless equipment in the wireless access area is optimal. Compared with the traditional planning method, the access point planned by the method has better overall communication performance.
In a further embodiment, the present application further provides a method for planning an access point of a wireless Mesh network, before step S1, further comprising the steps of:
s0, planning a grid, and dividing a plurality of wireless access areas, wherein each wireless access area comprises a plurality of wireless devices.
As shown in fig. 4, which is a schematic diagram of the division in step S0 of the present embodiment, each divided grid needs to satisfy the following conditions:
1) The communication distance of the access point needs to meet the communication requirements of all equipment in the grid;
2) The number of access devices of the access point satisfies the maximum number of devices within the mesh.
The division may divide each radio access region using a regular hexagon or a regular quadrangle, but other shapes may also be used to divide the radio access region. The planned whole area is divided into a plurality of wireless access areas, each wireless device is ensured to belong to one of the wireless access areas, and then the access point planning of the steps S1 to S4 in the embodiment is carried out for each of the wireless access areas.
On the other hand, in another embodiment of the present application, a wireless Mesh network is further provided, where the wireless Mesh network is composed of one or more wireless access areas, and each wireless access area includes an access point and several wireless devices that are located in the wireless access area, where an access point position of each wireless access area is calculated by using the wireless Mesh network access point planning method in any of the above embodiments.
The access point of the wireless Mesh network not only considers the geographic position of the wireless equipment, but also weights the geographic position according to the network parameters of each equipment, so that the access point is arranged at the centroid of the wireless access area, and the overall communication performance of all the wireless equipment in the wireless access area is optimal.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure should not be limited thereby. It is intended that all equivalent variations and modifications made in accordance with the teachings of the present disclosure be covered thereby. Embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (6)
1. A method for planning an access point of a wireless Mesh network is characterized by specifically comprising the following steps:
s1, acquiring the geographic position and network parameters of wireless equipment in a wireless access area, wherein the network parameters comprise the communication bandwidth and the signal sensitivity of each piece of wireless equipment;
s2, calculating the weight of each wireless device according to the network parameters;
s3, calculating a wireless network centroid coordinate of the wireless access area according to the weight and the geographic position of each wireless device;
and S4, taking the wireless network centroid coordinate as the access point position of the wireless access area.
2. The method for planning access point of wireless Mesh network according to claim 1, wherein before the step S1, further comprising the steps of:
s0, planning a grid, and dividing a plurality of wireless access areas, wherein each wireless access area comprises a plurality of wireless devices.
3. The method for planning an access point of a wireless Mesh network according to claim 1, wherein the step S2 specifically includes the steps of:
s21, counting the maximum communication bandwidth and the minimum signal sensitivity of all the wireless devices;
s22, for each wireless device, calculating to obtain a communication bandwidth parameter according to the maximum communication bandwidth and the communication bandwidth of the wireless device;
s23, for each wireless device, calculating to obtain a signal sensitivity parameter according to the minimum signal sensitivity and the signal sensitivity of the wireless device;
and S24, for each wireless device, calculating the weight of the wireless device according to the communication bandwidth parameter and the signal sensitivity parameter of the wireless device.
4. The method for planning an access point of a wireless Mesh network according to claim 3, wherein in step S24, the total weight is calculated according to the communication bandwidth parameter and the signal sensitivity parameter of the wireless device, which specifically includes:
setting a communication bandwidth weighted value and a signal sensitivity weighted value;
weighting the communication bandwidth parameters by the communication bandwidth weight values, weighting the signal sensitivity parameters by the signal sensitivity weight values, and adding the weighted communication bandwidth parameters and the weighted signal sensitivity parameters to obtain the weight of the wireless equipment.
5. The method for planning an access point of a wireless Mesh network according to claim 1, wherein the step S3 specifically includes the steps of:
weighting the longitude of the geographic position of each wireless device by the weight of the wireless device to obtain longitude coordinates of the centroid of the wireless access area;
weighting the latitude of the geographic position of each wireless device by the weight of each wireless device to obtain a latitude coordinate of the center of mass of the wireless access area;
and combining the longitude coordinate and the latitude coordinate to obtain a wireless area centroid coordinate of the wireless access area.
6. A wireless Mesh network comprising an access point and a plurality of wireless devices located within a wireless access area, wherein the location of the access point is calculated using the wireless Mesh network access point planning method according to any one of claims 1 to 5.
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