CN107483084B - Broadband carrier networking method, site and system - Google Patents
Broadband carrier networking method, site and system Download PDFInfo
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- CN107483084B CN107483084B CN201710964781.XA CN201710964781A CN107483084B CN 107483084 B CN107483084 B CN 107483084B CN 201710964781 A CN201710964781 A CN 201710964781A CN 107483084 B CN107483084 B CN 107483084B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2801—Broadband local area networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
The embodiment of the invention discloses a broadband carrier networking method. The invention changes the traditional networking mode that the central coordinator changes the working frequency band, the central coordinator works in the fixed working frequency band, each station changes the working frequency band to monitor the beacon frame sent by the central coordinator, when the station and the central coordinator are in the same working frequency band, the station successfully monitors the beacon frame sent by the central coordinator and sends the beacon frame to a network application, the central coordinator judges whether the network access is allowed according to the short network identification, and when the network access is allowed, the station works in the same working frequency band as the central coordinator fixedly. Through the networking mode, the sites working at different working frequency bands can be networked with the central coordinator, and the technical problems that the networking difficulty of the current broadband carrier is high and the sites at different working frequency bands are difficult to network are solved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a broadband carrier networking method, station, and system.
Background
The collected data transmission of the power consumer electricity collection system is composed of two types of communication networks of remote communication and local communication, and the remote data transmission communication from various collection terminals of a power consumer site to a system main station and the communication from the collection terminals to collection objects (electric meters) are respectively provided.
The local communication is divided into two communication modes of a power line carrier and an RS485 bus, wherein the power line carrier communication mode is divided into a narrow-band communication mode and a wide-band communication mode, the wide-band carrier technology is used for communication connection between the central coordinator and the collector and between the central coordinator and the electric meter, and the premise that the central coordinator and the station realize successful networking is that the communication efficiency and the communication quality are guaranteed.
In the current broadband carrier networking method, each station fixedly works in a respective fixed working frequency band, the working frequency band is changed by a central coordinator to perform networking, and if a plurality of stations work in different frequency bands, the central coordinator cannot perform networking on the stations working in the respective fixed working frequency bands. The technical problems that the networking difficulty of the current broadband carrier is high and the networking of sites with different working frequency bands is difficult are caused.
Disclosure of Invention
The invention provides a broadband carrier networking method, a broadband carrier networking site and a broadband carrier networking system, and solves the technical problems that the current broadband carrier networking is high in difficulty and the broadband carrier networking sites in different working frequency bands are difficult to network.
The invention provides a broadband carrier networking method, which comprises the following steps:
s11: presetting n working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and n is a positive integer larger than 0;
s12: monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, executing a step S14, and if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, executing a step S13, wherein i is a positive integer less than or equal to n;
s13: judging whether i is equal to n, if so, i is equal to 1, returning to the step S12, otherwise, i is equal to i +1, and returning to the step S12;
s14: sending a network access request to a central coordinator, wherein the network access request comprises a short network identifier;
s15: and receiving a first network access message sent by the central coordinator, judging whether the first network access message is a confirmation message, if so, successfully accessing the network to become a primary site and fixedly work in the ith working frequency band, and if not, returning to the step S12.
Preferably, the method further comprises the following steps:
s16: forwarding a beacon frame sent by a central coordinator;
s17: receiving a network access request sent by a second station monitoring the forwarded beacon frame, and forwarding the network access request to the central coordinator;
s18: and receiving a second network access message sent by the central coordinator and forwarding the second network access message to the second site, so that the second site successfully accesses the network when the second network access message is a confirmation message, and becomes a second-level site.
The invention provides a broadband carrier networking method, which comprises the following steps:
s21: presetting m working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and m is a positive integer larger than 0;
s22: monitoring beacon frames forwarded by the Y-1 level station in the kth working frequency band, if the beacon frames forwarded by the Y-1 level station are monitored in the frequency band time corresponding to the kth working frequency band, executing step S24, and if the beacon frames forwarded by the Y-1 level station are not monitored in the frequency band time corresponding to the kth working frequency band, executing step S23, wherein k is a positive integer less than or equal to m, and Y is a positive integer greater than or equal to two;
s23: judging whether k is equal to m, if so, k is equal to 1, returning to the step S22, otherwise, k is equal to k +1, and returning to the step S22;
s24: sending a network access request to a Y-1 level site, wherein the network access request comprises a short network identifier;
s25: and receiving a second network access message forwarded by the Y-1 level station, judging whether the second network access message is a confirmation message, if so, successfully accessing the network to become the Y level station and fixedly work in the kth working frequency band, and if not, returning to the step S22.
Preferably, the method further comprises the following steps:
s26: forwarding a beacon frame transmitted by a central coordinator forwarded by the Y-1 level station;
s27: receiving a network access request sent by the Y +1 th site monitoring the forwarded beacon frame, and forwarding the network access request to the central coordinator;
s28: and receiving a second network access message sent by the central coordinator and forwarding the second network access message to the (Y + 1) th site, so that the (Y + 1) th site successfully accesses the network when the second network access message is a confirmation message, and becomes a (Y + 1) level site.
The invention provides a station, comprising:
the device comprises a first presetting unit, a second presetting unit and a control unit, wherein the first presetting unit is used for presetting n working frequency bands, and the same or different frequency band time is correspondingly set in each working frequency band, wherein n is a positive integer larger than 0;
the first monitoring unit is used for monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, the first sending unit is triggered, and if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, the first judging unit is triggered, wherein i is a positive integer less than or equal to n;
the first judging unit is used for judging whether i is equal to n, if so, i is equal to 1 and triggers the first monitoring unit, and if not, i is equal to i +1 and triggers the first monitoring unit;
the first sending unit is used for sending a network access request to the central coordinator, wherein the network access request comprises a short network identifier;
the first receiving unit is used for receiving a first network access message sent by the central coordinator, judging whether the first network access message is a confirmation message, if so, successfully accessing the network to become a primary site and fixedly work in the ith working frequency band, and if not, triggering the first monitoring unit.
Preferably, the method further comprises the following steps:
the first forwarding unit is used for forwarding the beacon frame sent by the central coordinator;
the first request unit is used for receiving a network access request sent by the second station for monitoring the forwarded beacon frame and forwarding the network access request to the central coordinator;
and the first message unit is used for receiving the second network access message sent by the central coordinator and forwarding the second network access message to the second site, so that the second site successfully accesses the network when the second network access message is a confirmation message, and becomes a second-level site.
The invention provides a station, comprising:
the second presetting unit is used for presetting m working frequency bands, and the same or different frequency band time is correspondingly set in each working frequency band, wherein m is a positive integer larger than 0;
the second monitoring unit is used for monitoring the beacon frame forwarded by the Y-1 level station in the kth working frequency band, if the beacon frame forwarded by the Y-1 level station is monitored in the frequency band time corresponding to the kth working frequency band, the second sending unit is triggered, and if the beacon frame forwarded by the Y-1 level station is not monitored in the frequency band time corresponding to the kth working frequency band, the second judging unit is triggered, wherein k is a positive integer smaller than or equal to m, and Y is a positive integer larger than or equal to two;
the second judging unit is used for judging whether k is equal to m or not, if so, k is equal to 1, and the second monitoring unit is triggered, and if not, k is equal to k +1, and the second monitoring unit is triggered;
the second sending unit is used for sending a network access request to the Y-1 level site, wherein the network access request comprises a short network identifier;
and the second receiving unit is used for receiving a second network access message forwarded by the Y-1 level station, judging whether the second network access message is a confirmation message, if so, successfully accessing the network to become the Y level station and fixedly work in the kth working frequency band, and if not, triggering the second monitoring unit.
Preferably, the method further comprises the following steps:
the second forwarding unit is used for forwarding the beacon frame transmitted by the central coordinator forwarded by the Y-1 level site;
the second request unit is used for receiving a network access request sent by the (Y + 1) th site which monitors the forwarded beacon frame and forwarding the network access request to the central coordinator;
and the second message unit is used for receiving a second network access message sent by the central coordinator and forwarding the second network access message to the (Y + 1) th site, so that the (Y + 1) th site successfully accesses the network when the second network access message is a confirmation message, and becomes a (Y + 1) level site.
The invention provides a broadband carrier networking system, comprising: a central coordinator, at least one first site of any of the above;
the central coordinator is in communication connection with the first station through a communication mode of the electric power broadband carrier.
Preferably, the method further comprises the following steps: at least one of any of the above-described yth sites;
and the Y site is in communication connection with the Y-1 site in a power broadband carrier communication mode, and Y is a positive integer greater than or equal to two.
According to the technical scheme, the invention has the following advantages:
the invention provides a broadband carrier networking method, which comprises the following steps: s11: presetting n working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and n is a positive integer larger than 0; s12: monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, executing a step S14, and if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, executing a step S13, wherein i is a positive integer less than or equal to n; s13: judging whether i is equal to n, if so, i is equal to 1, returning to the step S12, otherwise, i is equal to i +1, and returning to the step S12; s14: sending a network access request to a central coordinator, wherein the network access request comprises a short network identifier; s15: and receiving a first network access message sent by the central coordinator, judging whether the first network access message is a confirmation message, if so, successfully accessing the network to become a primary site and fixedly work in the ith working frequency band, and if not, returning to the step S12.
The invention changes the traditional networking mode that the central coordinator changes the working frequency band, the central coordinator works in the fixed working frequency band, each station changes the working frequency band to monitor the beacon frame sent by the central coordinator, when the station and the central coordinator are in the same working frequency band, the station successfully monitors the beacon frame sent by the central coordinator and sends the beacon frame to a network application, the central coordinator judges whether the network access is allowed according to the short network identification, and when the network access is allowed, the station works in the same working frequency band as the central coordinator fixedly. Through the networking mode, the sites working at different working frequency bands can be networked with the central coordinator, and the technical problems that the networking difficulty of the current broadband carrier is high and the sites at different working frequency bands are difficult to network are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of an embodiment of a broadband carrier networking method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of another embodiment of a broadband carrier networking method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating another wideband carrier networking method according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of another embodiment of a method for broadband carrier networking according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of a station according to the present invention;
fig. 6 is a schematic structural diagram of an embodiment of another station according to the present invention;
fig. 7 is a schematic connection relationship diagram of an embodiment of a broadband carrier networking system according to an embodiment of the present invention.
Detailed Description
The invention provides a broadband carrier networking method, a broadband carrier networking site and a broadband carrier networking system, and solves the technical problems that the current broadband carrier networking is high in difficulty and the broadband carrier networking sites in different working frequency bands are difficult to network.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an embodiment of a broadband carrier networking method, including:
step 101: presetting n working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and n is a positive integer larger than 0;
step 102: monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, executing a step 104 if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, and executing a step 103 if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, wherein i is a positive integer less than or equal to n;
it should be noted that the central coordinator is a master node role in the communication network and is responsible for completing functions such as networking control and network maintenance, and the corresponding device entity is a local communication unit of the concentrator;
the station is a slave node role in a communication network, and the corresponding equipment entity is a communication unit and comprises an electric energy meter carrier module and a collector module;
the frequency range refers to the frequency range of electromagnetic waves and has the unit of Hz;
the beacon is a management message carrying network management and maintenance information and used for a specific purpose;
the short network identification is used for distinguishing different broadband carrier communication networks, and the effective value is 1-15;
if the first station monitors the beacon frame sent by the central coordinator in the ith working frequency band, the first station and the central coordinator are in the same working frequency band at the moment.
Step 103: judging whether i is equal to n, if so, i is equal to 1, returning to the step 102, otherwise, i is equal to i +1, and returning to the step 102;
it should be noted that, if the first station monitors the beacon frame sent by the central coordinator, the next working frequency band is changed to continue monitoring in the next frequency band, and when the nth working frequency band is monitored, the beacon frame sent by the central coordinator is still not monitored.
Step 104: sending a network access request to a central coordinator, wherein the network access request comprises a short network identifier;
it should be noted that the short network identifier is used to distinguish different broadband carrier communication networks, and the effective value is 1-15;
firstly, judging whether the short network identification judges whether the short network identification of the site is consistent with that of the central coordinator, then judging whether the site is in a white list of the central coordinator, wherein the white list is an MAC address list of terminal equipment which is set in a communication network and allowed to access the network, and if the short network identification and the short network identification of the central coordinator are both consistent, agreeing to the site to access the network.
Step 105: receiving a first network access message sent by a central coordinator, judging whether the first network access message is a confirmation message, if so, executing the step 106, and if not, returning to the step 102;
step 106: and successfully accessing the network to become a first-level station and fixedly working in the ith working frequency band.
It should be noted that, the central coordinator determines whether to allow network access according to the short network identifier, and since each broadband carrier communication network must have a unique short network identifier, there may not be two central coordinators having the same short network identifier, it may be determined whether the site is allowed to access by the central coordinator according to whether the short network identifier in the network access application sent by the site is consistent with the short network identifier of the central coordinator, and then it is determined whether the site is in the white list of the central coordinator, if the short network identifiers of the two sites are the same and the site is in the white list of the central coordinator, then a confirmation message is sent, and if not, a rejection message is sent.
The invention changes the traditional networking mode that a central coordinator changes the working frequency band, the central coordinator of the embodiment works in a fixed working frequency band, each station changes the working frequency band to monitor the beacon frame sent by the central coordinator, when the station and the central coordinator are in the same working frequency band, the station successfully monitors the beacon frame sent by the central coordinator and sends the beacon frame to a network application, the central coordinator judges whether the network access is allowed according to the short network identifier, and when the network access is allowed, the station fixedly works in the same working frequency band as the central coordinator. Through the networking mode, the sites working at different working frequency bands can be networked with the central coordinator, and the technical problems that the networking difficulty of the current broadband carrier is high and the sites at different working frequency bands are difficult to network are solved.
The above is an embodiment of a broadband carrier networking method provided by the embodiment of the present invention, and the following is another embodiment of a broadband carrier networking method provided by the embodiment of the present invention.
Referring to fig. 2, another embodiment of a method for broadband carrier networking according to the present invention includes:
step 201: presetting n working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and n is a positive integer larger than 0;
it should be noted that, when n is equal to 1, it may be a special case that both the central coordinator and the station agree on the working band.
Step 202: monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, executing a step 204 if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, and executing a step 203 if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, wherein i is a positive integer less than or equal to n;
it should be noted that, the station switches to monitor the beacon frame sent by the central coordinator in the n operating frequency bands, when the beacon frame sent by the central coordinator is successfully monitored in the ith operating frequency band, the station sends a network access request, and if the monitoring is not successful, the station continues to switch to the next operating frequency band for monitoring.
Step 203: judging whether i is equal to n, if so, i is equal to 1, returning to the step 202, otherwise, i is equal to i +1, and returning to the step 202;
it should be noted that, when the monitoring is still not successful in the nth operating frequency band, the monitoring is switched back to the first operating frequency band for monitoring again.
Step 204: sending a network access request to a central coordinator, wherein the network access request comprises a short network identifier;
it should be noted that the sent network access request includes a short network identifier, and whether the site is in the white list of the central coordinator is determined by whether the short network identifiers of the central coordinator and the site are matched;
when a plurality of central coordinators exist, each broadband carrier communication network must have a unique short network identifier, and two central coordinators with the same short network identifier cannot exist, so that whether a site is allowed to enter the network by the central coordinator can be judged according to whether the short network identifier in a network access application sent by the site is consistent with the short network identifier of the central coordinator, and then whether the site is in a networking white list of the central coordinator needs to be judged, if the short network identifiers of the two sites are the same and the site is in the white list of the central coordinator, a confirmation message is sent, and if the short network identifiers of the two sites are not consistent, a rejection message is sent. .
Step 205: receiving a first network access message sent by the central coordinator, judging whether the first network access message is a confirmation message, if so, executing a step 206, and if not, returning to the step 202;
step 206: and successfully accessing the network to become a first-level station and fixedly working in the ith working frequency band.
It should be noted that if the network access message returned by the central coordinator is a confirmation message, successful networking is performed, and the station fixedly operates in the ith operating frequency band;
if the message is not a confirmation message, the networking is failed, and the step 202 is returned to continue monitoring the beacon frames of other central coordinators.
Step 207: forwarding a beacon frame sent by a central coordinator;
when the first station becomes a first-stage station, the beacon frame transmitted by the central coordinator is forwarded downward to form a hierarchical communication network.
Step 208: receiving a network access request sent by a second station monitoring the forwarded beacon frame, and forwarding the network access request to the central coordinator;
it should be noted that whether the second site can access the network requires forwarding the network access request to the central coordinator, and the central coordinator determines the network access request.
Step 209: and receiving a second network access message sent by the central coordinator and forwarding the second network access message to the second site, so that the second site successfully accesses the network when the second network access message is a confirmation message, and becomes a second-level site.
It should be noted that, when the second station receives the network access message forwarded by the first station as the confirmation message, the second station becomes the second station after successfully accessing the network.
The invention changes the traditional networking mode that a central coordinator changes the working frequency band, the central coordinator of the embodiment works in a fixed working frequency band, each station changes the working frequency band to monitor the beacon frame sent by the central coordinator, when the station and the central coordinator are in the same working frequency band, the station successfully monitors the beacon frame sent by the central coordinator and sends the beacon frame to a network application, the central coordinator judges whether the network access is allowed according to the short network identifier, and when the network access is allowed, the station fixedly works in the same working frequency band as the central coordinator. Through the networking mode, the sites working at different working frequency bands can be networked with the central coordinator, and the technical problems that the networking difficulty of the current broadband carrier is high and the sites at different working frequency bands are difficult to network are solved.
The above is another embodiment of the broadband carrier networking method provided by the embodiment of the present invention, and the following is an embodiment of another broadband carrier networking method provided by the embodiment of the present invention.
Referring to fig. 3, an embodiment of the present invention provides another broadband carrier networking method, including:
step 301: presetting m working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and m is a positive integer larger than 0;
it should be noted that each site in this embodiment has a preset working frequency band, and the search time corresponding to each working frequency band, that is, the frequency band time, may be the same or different.
Step 302: monitoring beacon frames forwarded by Y-1-level stations in a kth working frequency band, if the beacon frames forwarded by the Y-1-level stations are monitored in frequency band time corresponding to the kth working frequency band, executing a step 304, and if the beacon frames forwarded by the Y-1-level stations are not monitored in frequency band time corresponding to the kth working frequency band, executing a step 303, wherein k is a positive integer smaller than or equal to m, and Y is a positive integer larger than or equal to two;
the difference exists between the Y-th site and the Y-level site, the site which successfully accesses the network in the Y-th site is called the Y-level site, and the Y-1-th site and the Y-1-level site are the same.
Step 303: judging whether k is equal to m, if so, k is equal to 1, returning to the step 302, otherwise, k is equal to k +1, and returning to the step 302;
it should be noted that, when the monitoring is still not successful in the mth operating frequency band, the station switches back to the first operating frequency band to perform monitoring again.
Step 304: sending a network access request to a Y-1 level site, wherein the network access request comprises a short network identifier;
step 305: receiving a second network access message forwarded by the Y-1 level station, judging whether the second network access message is a confirmation message, if so, executing the step 306, and if not, returning to the step 302;
step 306: and successfully accessing the network to become a Y-level station and fixedly working in the kth working frequency band.
The above is an embodiment of another broadband carrier networking method provided by the embodiment of the present invention, and the following is another embodiment of another broadband carrier networking method provided by the embodiment of the present invention.
Referring to fig. 4, another embodiment of a method for broadband carrier networking according to the present invention includes:
step 401: presetting m working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and m is a positive integer larger than 0;
step 402: monitoring a beacon frame forwarded by a Y-1 level station in a kth working frequency band, if the beacon frame forwarded by the Y-1 level station is monitored in frequency band time corresponding to the kth working frequency band, executing a step 404, and if the beacon frame forwarded by the Y-1 level station is not monitored in frequency band time corresponding to the kth working frequency band, executing a step 403, wherein k is a positive integer smaller than or equal to m, and Y is a positive integer larger than or equal to two;
step 403: judging whether k is equal to m, if so, k is equal to 1, returning to the step 402, otherwise, k is equal to k +1, and returning to the step 402;
step 404: sending a network access request to a Y-1 level site, wherein the network access request comprises a short network identifier;
step 405: receiving a second network access message forwarded by the Y-1 level station, judging whether the second network access message is a confirmation message, if so, executing the step 406, otherwise, returning to the step 402;
step 406: successfully accessing the network to become a Y-level station and fixedly working in the kth working frequency band;
step 407: forwarding a beacon frame transmitted by a central coordinator forwarded by the Y-1 level station;
it should be noted that, when the Y-th station receives the acknowledgement packet forwarded by the Y-1-th station, the Y-th station successfully accesses the network and forwards the monitored beacon frame to the Y + 1-th station, so as to form a hierarchical communication network.
Step 408: receiving a network access request sent by the Y +1 th site monitoring the forwarded beacon frame, and forwarding the network access request to the central coordinator;
step 409: and receiving a second network access message sent by the central coordinator and forwarding the second network access message to the (Y + 1) th site, so that the (Y + 1) th site successfully accesses the network when the second network access message is a confirmation message, and becomes a (Y + 1) level site.
The above is another embodiment of another broadband carrier networking method provided in the embodiment of the present invention, and the following is an embodiment of a station provided in the embodiment of the present invention.
Referring to fig. 5, an embodiment of the present invention provides an embodiment of a station, including:
a first presetting unit 501, configured to preset n working frequency bands, where each working frequency band is correspondingly set to have the same or different frequency band time, where n is a positive integer greater than 0;
a first monitoring unit 502, configured to monitor, in an ith operating frequency band, a beacon frame sent by a central coordinator operating in a fixed frequency band, trigger a first sending unit 504 if the beacon frame sent by the central coordinator is monitored within a frequency band time corresponding to the ith operating frequency band, and execute triggering a first determining unit 503 if the beacon frame sent by the central coordinator is not monitored within the frequency band time corresponding to the ith operating frequency band, where i is a positive integer less than or equal to n;
a first determining unit 503, configured to determine whether i is equal to n, if i is equal to 1, trigger the first monitoring unit 502, and if not, i is equal to i +1, trigger the first monitoring unit 502;
a first sending unit 504, configured to send a network access request to the central coordinator, where the network access request includes a short network identifier;
the first receiving unit 505 is configured to receive a first network access packet sent by the central coordinator, and determine whether the first network access packet is a confirmation packet, if so, successfully access the network to become a first-level site and fixedly operate in the ith operating frequency band, and if not, trigger the first monitoring unit 502.
Further, still include:
a first forwarding unit 506, configured to forward a beacon frame sent by the central coordinator;
a first request unit 507, configured to receive a network access request sent by the second station that monitors the forwarded beacon frame, and forward the network access request to the central coordinator;
the first message unit 508 is configured to receive the second network access message sent by the central coordinator and forward the second network access message to the second site, so that the second site successfully accesses the network when the second network access message is the acknowledgment message, and becomes a second-level site.
The above is an embodiment of a station provided in the embodiment of the present invention, and the following is an embodiment of another station provided in the embodiment of the present invention.
Referring to fig. 6, an embodiment of the present invention provides another station, including:
a second presetting unit 601, configured to preset m working frequency bands, where each working frequency band is correspondingly set to have the same or different frequency band time, and m is a positive integer greater than 0;
a second monitoring unit 602, configured to monitor a beacon frame forwarded by a Y-1-level station in a kth working frequency band, trigger a second sending unit 604 if the beacon frame forwarded by the Y-1-level station is monitored within a frequency band time corresponding to the kth working frequency band, and trigger a second determining unit 603 if the beacon frame forwarded by the Y-1-level station is not monitored within the frequency band time corresponding to the kth working frequency band, where k is a positive integer less than or equal to m, and Y is a positive integer greater than or equal to two;
a second determining unit 603, configured to determine whether k is equal to m, if k is equal to 1, trigger the second monitoring unit 602, and if not, k is equal to k +1, trigger the second monitoring unit 602;
a second sending unit 604, configured to send a network access request to the Y-1 level station, where the network access request includes a short network identifier;
a second receiving unit 605, configured to receive a second network access packet forwarded by the Y-1 level station, and determine whether the second network access packet is a confirmation packet, if so, successfully access the network to become the Y level station and fixedly operate in the kth operating frequency band, and if not, trigger the second monitoring unit 602.
Further, still include:
a second forwarding unit 606, configured to forward a beacon frame sent by the central coordinator and forwarded by the Y-1 level station;
a second request unit 607, configured to receive a network access request sent by the Y +1 th station that monitors the forwarded beacon frame, and forward the network access request to the central coordinator;
the second message unit 608 is configured to receive a second network access message sent by the central coordinator and forward the second network access message to the Y +1 th site, so that the Y +1 th site successfully accesses the network when the second network access message is a confirmation message, and becomes a Y + 1-level site.
The above is an embodiment of another station provided in the embodiment of the present invention, and the following is an embodiment of a broadband carrier networking system provided in the embodiment of the present invention.
Referring to fig. 7, an embodiment of the present invention provides an embodiment of a broadband carrier networking system, including: a central coordinator, at least one first site of any of the above;
the central coordinator is in communication connection with the first station through a communication mode of the electric power broadband carrier.
It should be noted that the number of the central coordinator and the first sites is not necessarily one or more, and when there are a plurality of central coordinators, the identification is performed by the short network identifier.
Further, still include: at least one of any of the above-described yth sites;
and the Y site is in communication connection with the Y-1 site in a power broadband carrier communication mode, and Y is a positive integer greater than or equal to two.
It should be noted that the Y site is the second site, the third site, the fourth site, and the like, and the subsequent site levels in this embodiment may all use this method to perform networking.
The invention changes the traditional networking mode that a central coordinator changes the working frequency band, the central coordinator of the embodiment works in a fixed working frequency band, each station changes the working frequency band to monitor the beacon frame sent by the central coordinator, when the station and the central coordinator are in the same working frequency band, the station successfully monitors the beacon frame sent by the central coordinator and sends the beacon frame to a network application, the central coordinator judges whether the network access is allowed according to the short network identifier, and when the network access is allowed, the station fixedly works in the same working frequency band as the central coordinator. Through the networking mode, the sites working at different working frequency bands can be networked with the central coordinator, and the technical problems that the networking difficulty of the current broadband carrier is high and the sites at different working frequency bands are difficult to network are solved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A broadband carrier networking method, comprising:
s11: presetting n working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and n is a positive integer larger than 0;
s12: monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, executing a step S14, and if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, executing a step S13, wherein i is a positive integer less than or equal to n;
s13: judging whether i is equal to n, if so, i is equal to 1, returning to the step S12, otherwise, i is equal to i +1, and returning to the step S12;
s14: sending a network access request to a central coordinator, wherein the network access request comprises a short network identifier;
s15: and receiving a first network access message sent by the central coordinator, judging whether the first network access message is a confirmation message, if so, successfully accessing the network to become a primary site and fixedly work in the ith working frequency band, and if not, returning to the step S12.
2. The method for networking broadband carriers according to claim 1, further comprising:
s16: forwarding a beacon frame sent by a central coordinator;
s17: receiving a network access request sent by a second station monitoring the forwarded beacon frame, and forwarding the network access request to the central coordinator;
s18: and receiving a second network access message sent by the central coordinator and forwarding the second network access message to the second site, so that the second site successfully accesses the network when the second network access message is a confirmation message, and becomes a second-level site.
3. A broadband carrier networking method, comprising:
s21: presetting m working frequency bands, wherein the same or different frequency band time is correspondingly set in each working frequency band, and m is a positive integer larger than 0;
s22: monitoring beacon frames forwarded by the Y-1 level station in the kth working frequency band, if the beacon frames forwarded by the Y-1 level station are monitored in the frequency band time corresponding to the kth working frequency band, executing step S24, and if the beacon frames forwarded by the Y-1 level station are not monitored in the frequency band time corresponding to the kth working frequency band, executing step S23, wherein k is a positive integer less than or equal to m, and Y is a positive integer greater than or equal to two;
s23: judging whether k is equal to m, if so, k is equal to 1, returning to the step S22, otherwise, k is equal to k +1, and returning to the step S22;
s24: sending a network access request to a Y-1 level site, wherein the network access request comprises a short network identifier;
s25: and receiving a second network access message forwarded by the Y-1 level station, judging whether the second network access message is a confirmation message, if so, successfully accessing the network to become the Y level station and fixedly work in the kth working frequency band, and if not, returning to the step S22.
4. The method of claim 3, further comprising:
s26: forwarding a beacon frame transmitted by a central coordinator forwarded by the Y-1 level station;
s27: receiving a network access request sent by the Y +1 th site monitoring the forwarded beacon frame, and forwarding the network access request to the central coordinator;
s28: and receiving a second network access message sent by the central coordinator and forwarding the second network access message to the (Y + 1) th site, so that the (Y + 1) th site successfully accesses the network when the second network access message is a confirmation message, and becomes a (Y + 1) level site.
5. A station, comprising:
the device comprises a first presetting unit, a second presetting unit and a control unit, wherein the first presetting unit is used for presetting n working frequency bands, and the same or different frequency band time is correspondingly set in each working frequency band, wherein n is a positive integer larger than 0;
the first monitoring unit is used for monitoring a beacon frame sent by a central coordinator working at a fixed frequency band in an ith working frequency band, if the beacon frame sent by the central coordinator is monitored in the frequency band time corresponding to the ith working frequency band, the first sending unit is triggered, and if the beacon frame sent by the central coordinator is not monitored in the frequency band time corresponding to the ith working frequency band, the first judging unit is triggered, wherein i is a positive integer less than or equal to n;
the first judging unit is used for judging whether i is equal to n, if so, i is equal to 1 and triggers the first monitoring unit, and if not, i is equal to i +1 and triggers the first monitoring unit;
the first sending unit is used for sending a network access request to the central coordinator, wherein the network access request comprises a short network identifier;
the first receiving unit is used for receiving a first network access message sent by the central coordinator, judging whether the first network access message is a confirmation message, if so, successfully accessing the network to become a primary site and fixedly work in the ith working frequency band, and if not, triggering the first monitoring unit.
6. A station according to claim 5, further comprising:
the first forwarding unit is used for forwarding the beacon frame sent by the central coordinator;
the first request unit is used for receiving a network access request sent by the second station for monitoring the forwarded beacon frame and forwarding the network access request to the central coordinator;
and the first message unit is used for receiving the second network access message sent by the central coordinator and forwarding the second network access message to the second site, so that the second site successfully accesses the network when the second network access message is a confirmation message, and becomes a second-level site.
7. A station, comprising:
the second presetting unit is used for presetting m working frequency bands, and the same or different frequency band time is correspondingly set in each working frequency band, wherein m is a positive integer larger than 0;
the second monitoring unit is used for monitoring the beacon frame forwarded by the Y-1 level station in the kth working frequency band, if the beacon frame forwarded by the Y-1 level station is monitored in the frequency band time corresponding to the kth working frequency band, the second sending unit is triggered, and if the beacon frame forwarded by the Y-1 level station is not monitored in the frequency band time corresponding to the kth working frequency band, the second judging unit is triggered, wherein k is a positive integer smaller than or equal to m, and Y is a positive integer larger than or equal to two;
the second judging unit is used for judging whether k is equal to m or not, if so, k is equal to 1, and the second monitoring unit is triggered, and if not, k is equal to k +1, and the second monitoring unit is triggered;
the second sending unit is used for sending a network access request to the Y-1 level site, wherein the network access request comprises a short network identifier;
and the second receiving unit is used for receiving a second network access message forwarded by the Y-1 level station, judging whether the second network access message is a confirmation message, if so, successfully accessing the network to become the Y level station and fixedly work in the kth working frequency band, and if not, triggering the second monitoring unit.
8. A station according to claim 7, further comprising:
the second forwarding unit is used for forwarding the beacon frame transmitted by the central coordinator forwarded by the Y-1 level site;
the second request unit is used for receiving a network access request sent by the (Y + 1) th site which monitors the forwarded beacon frame and forwarding the network access request to the central coordinator;
and the second message unit is used for receiving a second network access message sent by the central coordinator and forwarding the second network access message to the (Y + 1) th site, so that the (Y + 1) th site successfully accesses the network when the second network access message is a confirmation message, and becomes a (Y + 1) level site.
9. A broadband carrier networking system, comprising: a central coordinator, at least one station according to any one of claims 5 or 6;
the central coordinator is in communication connection with a station through a communication mode of a power broadband carrier.
10. The broadband carrier networking system of claim 9, further comprising: at least one class Y site according to any one of claims 7 or 8;
and the Y-level station is in communication connection with the Y-1 level station in a power broadband carrier communication mode, and Y is a positive integer greater than or equal to two.
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| CN111147105B (en) * | 2019-12-19 | 2021-11-30 | 珠海中慧微电子有限公司 | Communication method of slave metering module |
| CN111162874B (en) * | 2019-12-27 | 2022-11-04 | 展讯通信（上海）有限公司 | Data transmission method and device of ad hoc network system, storage medium and terminal |
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| CN103428089A (en) * | 2012-05-16 | 2013-12-04 | 深圳市金正方科技有限公司 | Method and system for optimizing low-voltage power line carrier communication network |
| CN103457900A (en) * | 2013-09-03 | 2013-12-18 | 清华大学 | Multi-frequency networking method and device based on OFDM in power line communication system |
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