CN106899990B - Networking self-optimization method, device and system - Google Patents
Networking self-optimization method, device and system Download PDFInfo
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Abstract
The invention discloses a networking self-optimization method, which comprises the following steps: monitoring the noise of the current service channel; when it is detected that data is reported to the central node through the current service channel and no response is received from the central node, monitoring the noise of the broadcast channel according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time; when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; if the response of the central node is received, the data is reported successfully. The invention also discloses a networking self-optimization device and a networking self-optimization system, and by adopting the networking self-optimization method and the networking self-optimization system, the mutual interference among frequency points during communication can be reduced, and the communication success rate is improved.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, and a system for network ad hoc optimization.
Background
With the rise of the internet of things, private networks (such as Zigbee) of non-public networks are more and more miniaturized, application environments are more and more complex, and mutual interference of the networks is more and more. Therefore, the interference of networking on the existing network is effectively reduced, and the radio frequency performance of the newly-built network is optimized to become an important index required by the performance of the existing wireless equipment. The existing wireless communication principles are frequency modulation or spread spectrum modulation, under the condition of the same transmitting power, the stability of the network is more dependent on the idle condition of the frequency point used by the networking, if the node is not used by other equipment, the communication success rate is extremely high, otherwise, if the frequency point is already occupied by other equipment, the frequency point and the other equipment interfere with each other, and the communication success rate is seriously reduced.
Disclosure of Invention
The embodiment of the invention provides a networking self-optimization method, a networking self-optimization device and a networking self-optimization system, which can reduce mutual interference among frequency points during communication and improve the success rate of communication.
A first aspect of an embodiment of the present invention provides a networking self-optimization method, which is characterized by including:
monitoring the noise of the current service channel; the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
when it is detected that data is reported to the central node through the current service channel and no response is received from the central node, monitoring the noise of the broadcast channel according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in X frequency bands; x is a positive integer;
when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; if the response of the central node is received, the data is reported successfully.
A second aspect of the embodiments of the present invention provides a networking ad hoc optimization method, including:
periodically broadcasting a currently used service channel to the child node through a preset broadcast port so that the child node monitors noise of the service channel; the number of the broadcasting ports is at least one; the broadcast ports correspond to different frequency bands;
and monitoring and scanning the frequency bands corresponding to the broadcast ports, and receiving the use conditions of all frequency points in the corresponding frequency bands reported by the sub-nodes through the broadcast ports.
A third aspect of the embodiments of the present invention provides a child node, including:
the first monitoring module is used for monitoring the noise of the current service channel; the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
a second monitoring module, configured to monitor noise of a broadcast channel according to a preset sequence of network group numbers, starting from a network group number stored when a data service is performed last time when it is detected that data is reported to a central node through the current service channel and no response of the central node is received; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in X frequency bands; x is a positive integer;
a reporting module, configured to report data to a central node by using a service channel broadcasted by a broadcast channel lower than a first noise threshold when the second monitoring module monitors that noise of the broadcast channel is lower than the first noise threshold; if the response of the central node is received, the data is reported successfully.
A fourth aspect of the present invention provides a central node, including:
the broadcasting module is used for periodically broadcasting the currently used service channel to the child nodes through a preset broadcasting port; the number of the broadcasting ports is at least one; the broadcast ports correspond to different frequency bands;
and the receiving module is used for monitoring and scanning the frequency bands corresponding to the broadcasting ports and receiving the use conditions of all frequency points in the corresponding frequency bands reported by the sub-nodes through the broadcasting ports.
A fifth aspect of the present invention provides a networking system comprising the child nodes provided by the third aspect of the present invention and the central node provided by the fourth aspect of the present invention.
By implementing the embodiment of the invention, it can be seen that by monitoring the noise of the current service channel, when it is detected that data is reported to the central node through the current service channel and no response is received by the central node, the noise of the broadcast channel is monitored according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time, and when it is detected that the noise of the broadcast channel is lower than the first noise threshold, the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report data to the central node, so that the mutual interference among frequency points during communication can be reduced, the success rate of communication is improved, the problem that if the frequency point is occupied by other equipment and interferes with each other, the success rate of communication is seriously reduced, and the interference of the environmental noise during communication to the communication is greatly reduced, the communication efficiency of the equipment is greatly improved, and the network capacity is increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments 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 it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a plurality of networks overlapping each other;
FIG. 2 is a schematic diagram of a single network;
fig. 3 is a flowchart of a networking ad hoc optimization method according to an embodiment of the present invention;
fig. 4 is a flowchart of another networking ad hoc optimization method provided in the embodiment of the present invention;
FIG. 5 is a schematic diagram of network group number division;
fig. 6 is a flowchart of another networking ad hoc optimization method according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a center node;
fig. 8 is a view of a sub-node structure according to an embodiment of the present invention;
fig. 9 is a diagram of another structure of a seed node according to an embodiment of the present invention;
fig. 10 is a diagram of another structure of a child node according to an embodiment of the present invention;
fig. 11 is a structural diagram of a central node according to an embodiment of the present invention;
fig. 12 is a structural diagram of a networking self-optimization system according to an embodiment of the present invention.
Detailed Description
The technical solution 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.
The terms "first," "second," "third," and the like in the description and in the claims, and in the above-described drawings, are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Various embodiments of the present invention may be implemented based on a schematic diagram of a plurality of networks overlapping with each other as shown in fig. 1, where different networks overlap with each other, each child node may be connected to a nearby central node for data communication, and a plurality of child nodes exist around each central node, and may broadcast a message to the surrounding child nodes, as shown in the single network schematic diagram shown in fig. 2. For example, in a ZigBee power management system, a ZigBee network center node may transmit a command data frame to each child node in a ZigBee wireless network in a broadcast manner through a single-point-to-multipoint communication mode, that is, a ZigBee collector collects data of each electricity meter, such a system may monitor power metering of each item in the whole plant area, analyze the percentage of each item consumed power to total consumed power in a certain period of time in the plant, thereby making a power consumption management scheme and achieving the effects of saving energy and reducing consumption.
As shown in fig. 3, fig. 3 is a flowchart of a networking self-optimization method according to an embodiment of the present invention, where the networking self-optimization method at least includes the following steps:
step S101: monitoring the noise of the current service channel;
specifically, the noise of the current traffic channel is the noise of the traffic channel used when the data service was performed last time.
Step S102: when detecting that data is reported to the central node through the current service channel and no response of the central node is received, monitoring the noise of the broadcast channel according to the preset sequence of the network group numbers from the network group numbers stored when the data service is carried out last time;
specifically, there are at least two cases where no response is received from the central node:
the first situation is that the noise of the current traffic channel is lower than a second noise threshold (for example, may be 3dB), and data is reported to the central node through the current traffic channel without receiving a response from the central node;
the second situation is that the noise of the current service channel is not lower than the second noise threshold, and the data is reported to the central node through the current service channel, and the response of the central node cannot be received;
after data reporting, the central node responds within a short time, usually in milliseconds.
Specifically, one network group number includes X frequency points, where the X frequency points include 1 frequency point of each of X frequency bands; x is a positive integer.
Specifically, the preset sequence of the network group numbers may be that the interval between two adjacent network group numbers N is not less than 2 when monitoring the noise of the broadcast channel, because the distribution of the spatial noise on the frequency band is basically in a wave shape, the noise of several continuous frequency points is high, and then the noise of several continuous frequency points is reduced. Meanwhile, the distribution of the spatial noise in time is mainly two, one of the spatial noise continues for a long time once the spatial noise starts, and the other spatial noise appears only at a certain moment, so that an available frequency point can be found by sampling a certain search rule and searching for 2-3 times generally.
Step S103: when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; if the response of the central node is received, the data is reported successfully.
Specifically, the noise of the monitored broadcast channel needs to be determined, if the noise of one broadcast channel is lower than a first noise threshold (for example, 6dB), the monitoring is stopped, and the service channel broadcasted by the broadcast channel is used to report data to the central node, and if the response of the central node is received, it indicates that the data report is successful.
By implementing the embodiment of the invention, it can be seen that by monitoring the noise of the current service channel, when it is detected that data is reported to the central node through the current service channel and no response is received by the central node, the noise of the broadcast channel is monitored according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time, and when it is detected that the noise of the broadcast channel is lower than the first noise threshold, the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report data to the central node, so that the mutual interference among frequency points during communication can be reduced, the success rate of communication is improved, the problem that if the frequency point is occupied by other equipment and interferes with each other, the success rate of communication is seriously reduced, and the interference of the environmental noise during communication to the communication is greatly reduced, the communication efficiency of the equipment is greatly improved, and the network capacity is increased.
Referring to fig. 4, fig. 4 is a flowchart of another networking self-optimization method according to an embodiment of the present invention, where the networking self-optimization method at least includes the following steps:
step S201: monitoring the noise of the current service channel;
specifically, the noise of the current traffic channel is the noise of the traffic channel used when the data service was performed last time.
Step S202: when detecting that data is reported to the central node through the current service channel and no response of the central node is received, monitoring the noise of the broadcast channel according to the preset sequence of the network group numbers from the network group numbers stored when the data service is carried out last time;
specifically, there are at least two cases where no response is received from the central node:
the first case is that the noise of the current traffic channel is lower than a second noise threshold (for example, may be 3dB), and data is reported to the central node through the current traffic channel without receiving a response from the central node;
the second situation is that the noise of the current service channel is not lower than a second noise threshold, and data is reported to the central node through the current service channel without necessarily receiving the response of the central node;
after data reporting, the central node responds within a short time, usually in milliseconds.
Specifically, one network group number includes X frequency points, where the X frequency points include 1 frequency point of each of the X frequency bands; x is a positive integer.
Specifically, the division of the network group number may refer to fig. 5, where fig. 5 is a schematic diagram of the division of the network group number, for example, the whole frequency band is averagely divided into three frequency bands, i.e., high, medium and low frequency bands, then M frequency points are averagely extracted in each frequency band, one frequency point is sequentially taken from the three frequency bands, i.e., the frequency point is numbered as a network group number N (N is an integer greater than or equal to 1 and less than or equal to M), and thus the whole frequency band is averagely divided into M groups. For example, the network group number 1 includes three frequency points, which are the first frequency points in three frequency bands of high, medium and low; the network group number 2 comprises three frequency points which are respectively the second frequency points in three frequency bands of high, middle and low; the network group number 3 comprises three frequency points which are respectively the third frequency points in three frequency bands of high, middle and low; the network group number 4 includes three frequency points, which are the fourth frequency points in three frequency bands of high, medium and low, and so on. It is to be understood that the division of the network frequency band is not limited to three frequency bands, and may be one or more.
According to the three-color principle, theoretically, M is larger than 3, so that the network group numbers used by each central node are different, and interference on the broadcasting frequency points cannot be generated.
It can be known that, after the broadcast frequency point is selected, it is known in the whole system so that all the central nodes can obtain the information of the broadcast frequency point. Before the whole system starts to operate, each central node is randomly configured with a network group number.
Specifically, the preset sequence of the network group numbers may be that the interval between two adjacent network group numbers N is not less than 2 when monitoring the noise of the broadcast channel, because the distribution of the spatial noise on the frequency band is basically in a wave shape, the noise of several continuous frequency points is high, and then the noise of several continuous frequency points is reduced. Meanwhile, the distribution of the spatial noise in time is mainly two, one is continuous in a long time once the spatial noise starts, and the other is only instantly appeared at a certain moment, so that an available broadcast frequency point can be found by searching for 2-3 times by adopting a certain search rule.
For example, when M is 10, there are 10 available frequency points, and if the default starting network group number is 1, the search order is: 1. 8, 5, 2, 9, 6, etc., and so on, so as to effectively avoid spatial interference and rapidly obtain the network group number of the available frequency point, thereby obtaining the available broadcast frequency point.
Step S203: when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node;
specifically, the noise of the monitored broadcast channel needs to be determined, and if the noise of one broadcast channel is lower than a first noise threshold (for example, 6dB), the monitoring is stopped, and the service channel broadcasted by the broadcast channel is used to report data to the central node, so that the central node performs periodic arbitration according to the monitored data, and selects the optimal service channel.
Preferably, the data reported to the central node may be listening data of a broadcast channel, and the listening data of the broadcast channel may include: the network group number N includes the noise condition of the broadcast channels corresponding to the M frequency points and the use condition of the available broadcast frequency points in the whole frequency band.
Step S204: judging whether a response of the central node is received or not;
step S205: if yes, storing the currently used service channel and the network group number, and taking the frequency point of the service channel and the frequency point contained in the network group number as the default frequency point in the next communication;
specifically, if the response of the central node is received, it indicates that the data report is successful, stores the currently used service channel and the network group number N, and uses the frequency point of the service channel and the frequency point included in the network group number N as the default frequency point in the next communication.
Step S206: if not, the noise of the next broadcast channel is monitored continuously according to the preset sequence of the network group number.
Specifically, if no response from the central node is received, which indicates that the data reporting fails, the noise of the next broadcast channel is monitored continuously according to the preset sequence of the network group number, and the process returns to step S206, until it is monitored that the noise of one broadcast channel is lower than the first noise threshold, and the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report the data to the central node.
It can be known that, when the whole system starts to operate, the noise condition of the broadcast port is monitored from the network group number configured in advance for the central node according to the preset sequence of the network group numbers until the noise meeting condition of one broadcast channel is monitored, so that the data service is performed according to the service channel broadcast by the broadcast channel with the noise meeting condition.
By implementing the embodiment of the invention, it can be seen that by monitoring the noise of the current service channel, when it is detected that data is reported to the central node through the current service channel and no response is received by the central node, the noise of the broadcast channel is monitored according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time, and when it is detected that the noise of the broadcast channel is lower than the first noise threshold, the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report data to the central node, so that the mutual interference among frequency points during communication can be reduced, the success rate of communication is improved, the problem that if the frequency point is occupied by other equipment and interferes with each other, the success rate of communication is seriously reduced, and the interference of the environmental noise during communication to the communication is greatly reduced, the communication efficiency of the equipment is greatly improved, and the network capacity is increased. In addition, the states of different central nodes searched in the environment where the child nodes are located and the frequency points occupied by the child nodes are actively reported by the child nodes, and the central nodes carry out periodic arbitration, so that the performance of the central nodes is further optimized, strong self-repairing and optimizing functions are provided for mutual overlapping and mutual interference of networks, and the difficulty of subsequent capacity expansion and installation can be greatly reduced.
Referring to fig. 6, fig. 6 is a flowchart of another networking self-optimization method according to an embodiment of the present invention, where the networking self-optimization method at least includes the following steps:
step S301: periodically broadcasting a currently used service channel to the child node through a preset broadcast port so that the child node monitors noise of the service channel;
step S302: and monitoring and scanning the frequency bands corresponding to the broadcast ports, and receiving the use conditions of all frequency points in the corresponding frequency bands reported by the sub-nodes through the broadcast ports.
Specifically, the number of broadcast ports is at least one; the broadcast ports correspond to different frequency bands;
specifically, the different frequency bands are frequency bands obtained by dividing the whole frequency band according to the number of the broadcast ports; wherein each frequency band corresponds to a broadcast port.
Specifically, for example, when the central node has three broadcast ports, the whole frequency band may be equally divided into three high, medium and low frequency bands, which correspond to the three broadcast ports of the central node, respectively, as shown in the schematic diagram of the central node in fig. 7, the central node may include an arbiter, four ports, which are respectively a service port, a broadcast port a, a broadcast port b, a broadcast port c, and other interfaces (for example, may be public network interfaces). The service port is responsible for data service communication with the node, and the frequency points used by the service port are continuously changed and adjusted according to the real-time situation. The broadcast port a corresponds to a high frequency band, the broadcast port b corresponds to a medium frequency band, and the broadcast port c corresponds to a low frequency band. The three broadcast ports are used for sending data and monitoring data in a fixed period (for example, 1s), broadcasting the frequency point used by the current service port during sending, monitoring and scanning the frequency band corresponding to the port, recording the use conditions of all the frequency points in the frequency band, and reporting the use conditions to the arbitration processor.
After acquiring the monitored data of the broadcast channel in the frequency band reported by the sub-node through the three broadcast ports, the arbitration processor forms the noise conditions of all available frequency points and the distribution conditions in the time dimension, ignores instant noise, filters out continuous noise, and selects the three frequency points with the lowest current noise as the frequency points occupied by the current service port according to the optimization algorithm, and performs weighting adjustment according to the noise and time distribution conditions, and selects the most stable frequency point in time as the frequency point used by the current service port. Typically, the selection of the optimal traffic channel by the arbitration processor is periodic, such as in a six hour period.
Meanwhile, the arbitration processor can adjust the network group number occupied by the central connection according to the occupation condition of the network group numbers used by other central nodes in the current environment reported by the child nodes, so that the same network group number with the adjacent central node is avoided. The mutual interference of the broadcast channels is reduced to the maximum extent, the number of the broadcast frequency points searched by the sub-nodes is reduced, and the communication success rate is provided.
Through the implementation of the embodiment of the invention, the service port and the broadcast port are used, the frequency points used by the service channel are periodically broadcast, the use conditions of all the frequency points in the whole frequency band are monitored, the periodic arbitration is carried out, the performance of the central node is optimized, the self-repairing and optimizing functions for mutual overlapping and mutual interference of networks are strong, and the difficulty of subsequent capacity expansion and installation can be greatly reduced.
For better understanding of the solution of the embodiment of the present invention, there is also provided a seed node, as shown in fig. 8, where a seed node 30 at least includes: a first monitoring module 310, a second monitoring module 320, and a reporting module 330; wherein the content of the first and second substances,
a first monitoring module 310, configured to monitor noise of a current traffic channel; the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
a second monitoring module 320, configured to monitor noise of a broadcast channel according to a preset sequence of network group numbers, starting from a network group number stored when a data service is performed last time when it is detected that data is reported to a central node through a current service channel and no response of the central node is received; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in the X frequency bands; x is a positive integer;
a reporting module 330, configured to report data to the central node by using a service channel broadcasted by the broadcast channel with a noise lower than a first noise threshold when the second monitoring module monitors that the noise of the broadcast channel is lower than the first noise threshold; if the response of the central node is received, the data is reported successfully.
By implementing the embodiment of the invention, it can be seen that by monitoring the noise of the current service channel, when it is detected that data is reported to the central node through the current service channel and no response is received by the central node, the noise of the broadcast channel is monitored according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time, and when it is detected that the noise of the broadcast channel is lower than the first noise threshold, the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report data to the central node, so that the mutual interference among frequency points during communication can be reduced, the success rate of communication is improved, the problem that if the frequency point is occupied by other equipment and interferes with each other, the success rate of communication is seriously reduced, and the interference of the environmental noise during communication to the communication is greatly reduced, the communication efficiency of the equipment is greatly improved, and the network capacity is increased.
An embodiment of the present invention further provides another seed node, and as shown in fig. 9, one seed node 40 at least includes: the monitoring system comprises a first monitoring module 410, a detection module 420, a second monitoring module 430, a reporting module 440 and a storage module 450; wherein the content of the first and second substances,
a first monitoring module 410, configured to monitor noise of a current traffic channel; the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
a detecting module 420, configured to detect whether the noise of the current traffic channel is lower than a second noise threshold after the first monitoring module 410 monitors the noise of the current traffic channel and before the second monitoring module monitors the noise of the broadcast channel according to the preset sequence of the network group numbers;
a second monitoring module 430, configured to, when it is detected that data is reported to the central node through the current service channel and no response is received from the central node, monitor noise of the broadcast channel according to a preset sequence of network group numbers, starting from a network group number stored when data service is performed last time; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in the X frequency bands; x is a positive integer;
a reporting module 440, configured to report data to the central node by using a service channel broadcasted by the broadcast channel with a noise lower than a first noise threshold when the second monitoring module 430 monitors that the noise of the broadcast channel is lower than the first noise threshold;
specifically, if the central node receives the response, the data is reported successfully, and the storage module 450 is triggered to store the data; if the central node does not respond, the data reporting fails, and the second monitoring module 430 is triggered to continue monitoring the noise of the next broadcast channel according to the preset sequence of the network group number until the noise of one broadcast channel is monitored to be lower than the first noise threshold, and the service channel broadcasted by the broadcast channel lower than the first noise threshold is used for reporting the data to the central node.
Preferably, the reporting module 440 may include a reporting sub-module, configured to report the monitored data of the broadcast channel to the central node by using the traffic channel broadcast by the broadcast channel that is lower than the first noise threshold, so that the central node performs periodic arbitration according to the monitored data to select the optimal traffic channel.
The storage module 450 is configured to store the currently used service channel and the network group number after the reporting module 440 successfully reports the data, and use the frequency point included in the service channel and the frequency point included in the network group number as a default frequency point in the next communication.
It can be known that, when the whole system starts to operate, the noise condition of the broadcast port is monitored from the network group number configured in advance for the central node according to the preset sequence of the network group numbers until the noise meeting condition of one broadcast channel is monitored, so that the data service is performed according to the service channel broadcast by the broadcast channel with the noise meeting condition.
By implementing the embodiment of the invention, it can be seen that by monitoring the noise of the current service channel, when it is detected that data is reported to the central node through the current service channel and no response is received by the central node, the noise of the broadcast channel is monitored according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time, and when it is detected that the noise of the broadcast channel is lower than the first noise threshold, the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report data to the central node, so that the mutual interference among frequency points during communication can be reduced, the success rate of communication is improved, the problem that if the frequency point is occupied by other equipment and interferes with each other, the success rate of communication is seriously reduced, and the interference of the environmental noise during communication to the communication is greatly reduced, the communication efficiency of the equipment is greatly improved, and the network capacity is increased. In addition, the monitoring data of the broadcast channel is actively reported by the child nodes, so that the central node performs periodic arbitration according to the monitoring data, the performance of the central node is further optimized, strong self-repairing and optimizing functions are provided for mutual overlapping and mutual interference of networks, and the difficulty of subsequent capacity expansion and installation can be greatly reduced.
An embodiment of the present invention further provides another seed node, as shown in fig. 10, a byte point 50 at least includes: at least one processor 510, e.g., a CPU, a user interface 530, a memory 540, at least one communication bus 520, and a display screen 550. Wherein a communication bus 520 is used to enable the connection communication between these components. The memory 540 may be a high-speed RAM memory or a non-volatile memory (e.g., at least one disk memory). Memory 540 may optionally also be at least one memory system located remotely from the aforementioned processor 510. As shown in fig. 10, the memory 540, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a networking self-optimization program.
In the child node 50 shown in fig. 10, the processor 510 may be configured to invoke a networking ad hoc optimization program stored in the memory 540 and perform the following operations:
monitoring the noise of the current service channel; wherein, the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
when detecting that data is reported to the central node through the current service channel and no response of the central node is received, monitoring the noise of the broadcast channel according to the preset sequence of the network group numbers from the network group numbers stored when the data service is carried out last time; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in the X frequency bands; x is a positive integer;
when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; if the response of the central node is received, the data is reported successfully.
By implementing the embodiment of the invention, it can be seen that by monitoring the noise of the current service channel, when it is detected that data is reported to the central node through the current service channel and no response is received by the central node, the noise of the broadcast channel is monitored according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time, and when it is detected that the noise of the broadcast channel is lower than the first noise threshold, the service channel broadcasted by the broadcast channel lower than the first noise threshold is used to report data to the central node, so that the mutual interference among frequency points during communication can be reduced, the success rate of communication is improved, the problem that if the frequency point is occupied by other equipment and interferes with each other, the success rate of communication is seriously reduced, and the interference of the environmental noise during communication to the communication is greatly reduced, the communication efficiency of the equipment is greatly improved, and the network capacity is increased.
An embodiment of the present invention further provides a central node, and as shown in fig. 11, a central node 60 at least includes: a broadcasting module 640, a receiving module 650; wherein the content of the first and second substances,
a broadcasting module 640, configured to periodically broadcast a currently used service channel to a child node through a preset broadcasting port, so that the child node monitors noise of the service channel;
the receiving module 650 is configured to monitor and scan frequency bands corresponding to the broadcast ports, and receive the use conditions of all frequency points in the corresponding frequency bands reported by the sub-nodes through the broadcast ports.
Through the implementation of the embodiment of the invention, the service port and the broadcast port are used, the frequency points used by the service channel are periodically broadcast, the use conditions of all the frequency points in the whole frequency band are monitored, the periodic arbitration is carried out, the performance of the central node is optimized, the self-repairing and optimizing functions for mutual overlapping and mutual interference of networks are strong, and the difficulty of subsequent capacity expansion and installation can be greatly reduced.
The embodiment of the present invention further provides a networking self-optimization system, and as shown in fig. 12, a networking self-optimization system 70 at least includes: child nodes 40 and central nodes 60; wherein the content of the first and second substances,
the subnode 40 is configured to monitor noise of a current traffic channel, monitor noise of a broadcast channel according to a preset sequence of network group numbers from a network group number stored when a data service is performed last time when it is detected that data is reported to the central node 60 through the current traffic channel and no response is received from the central node 60, and report data to the central node 60 by using a traffic channel broadcasted by the broadcast channel lower than a first noise threshold when it is detected that the noise of the broadcast channel is lower than the first noise threshold;
the central node 60 is configured to perform periodic arbitration on the usage of the service port and the broadcast port, the frequency points used by the periodic broadcast service channel, and the usage of all frequency points of the whole frequency band reported by the broadcast port provided by the monitoring sub-node 40.
It can be seen that by implementing the embodiment of the present invention, the mutual interference between frequency points during communication can be reduced, the communication success rate is improved, the problem that the communication success rate is seriously reduced due to the mutual interference between the frequency points if the frequency points are occupied by other devices in the prior art is solved, the interference of environmental noise to communication during communication is greatly reduced, the communication efficiency of the devices is greatly improved, the network capacity is increased, and the self-repairing and optimizing functions for the mutual interference of the mutual overlapping of networks are strong, so that the difficulty of subsequent expansion and installation can be greatly reduced.
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 the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (17)
1. A networking self-optimization method is characterized by comprising the following steps:
monitoring the noise of the current service channel; the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
when it is detected that data is reported to the central node through the current service channel and no response is received from the central node, monitoring the noise of the broadcast channel according to the preset sequence of the network group numbers from the network group number stored when the data service is carried out last time; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in X frequency bands; x is a positive integer;
when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; if the response of the central node is received, the data is reported successfully.
2. The method of claim 1, wherein after monitoring noise of a current traffic channel, and before detecting that data is reported to a central node via the current traffic channel and no response is received from the central node, further comprising:
detecting whether the noise of the current traffic channel is lower than a second noise threshold value;
if the noise of the current service channel is lower than the second noise threshold, reporting data to a central node through the current service channel, and detecting whether a response of the central node is received; or
If the noise of the current service channel is not lower than the second noise threshold, it is detected that data is reported to the central node through the current service channel and no response of the central node is received.
3. The method of claim 2, wherein the predetermined order of the network group numbers comprises: the interval between two adjacent network group numbers is not less than 2 when monitoring the noise of the broadcast channel.
4. The method of claim 1, wherein the step of, after the data report is successful if the response from the central node is received, further comprising:
storing the currently used service channel and the network group number, and taking the frequency point of the service channel and the frequency point contained in the network group number as the default frequency point in the next communication.
5. The method of claim 1, wherein the traffic channel broadcast using the broadcast channel below the first noise threshold further comprises, after data reporting to a central node:
if the response of the central node is not received, the noise of the next broadcast channel is monitored continuously according to the preset sequence of the network group number.
6. The method of claim 1, wherein the reporting data to a central node using a traffic channel broadcast on a broadcast channel below a first noise threshold comprises:
and reporting the monitoring data of the broadcast channel to a central node by using the service channel broadcasted by the broadcast channel lower than the first noise threshold value, so that the central node performs periodic arbitration according to the monitoring data and selects the optimal service channel.
7. A networking self-optimization method is characterized by comprising the following steps:
periodically broadcasting a currently used service channel to a child node through a preset broadcast port so as to enable the child node to monitor the noise of the service channel, and when the fact that data report is carried out to a central node through the current service channel and no response of the central node is received is detected, monitoring the noise of the broadcast channel according to a preset sequence of network group numbers from a network group number stored when data service is carried out last time; when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; the number of the broadcasting ports is at least one; the broadcast ports correspond to different frequency bands;
and monitoring and scanning the frequency bands corresponding to the broadcast ports, and receiving the use conditions of all frequency points in the corresponding frequency bands reported by the sub-nodes through the broadcast ports.
8. The method of claim 7, wherein the different frequency bands are frequency bands divided into the entire frequency bands according to the number of broadcast ports; wherein each frequency band corresponds to a broadcast port.
9. A child node, comprising:
the first monitoring module is used for monitoring the noise of the current service channel; the noise of the current service channel is the noise of the service channel used when the data service is carried out last time;
a second monitoring module, configured to monitor noise of a broadcast channel according to a preset sequence of network group numbers, starting from a network group number stored when a data service is performed last time when it is detected that data is reported to a central node through the current service channel and no response of the central node is received; one network group number comprises X frequency points, and the X frequency points comprise 1 frequency point of each frequency band in X frequency bands; x is a positive integer;
a reporting module, configured to report data to a central node by using a service channel broadcasted by a broadcast channel lower than a first noise threshold when the second monitoring module monitors that noise of the broadcast channel is lower than the first noise threshold; if the response of the central node is received, the data is reported successfully.
10. The child node of claim 9, further comprising:
the detection module is used for detecting whether the noise of the current service channel is lower than a second noise threshold value or not after the first monitoring module monitors the noise of the current service channel and before the second monitoring module monitors the noise of the broadcast channel according to the preset sequence of the network group numbers;
if the noise of the current service channel is lower than the second noise threshold, reporting data to a central node without receiving the response of the central node;
and if the noise of the current service channel is not lower than the second noise threshold, reporting data to the central node without receiving the response of the central node.
11. The child node of claim 10, wherein the predetermined order of network group numbers comprises: the interval between two adjacent network group numbers N is not less than 2 when the noise of the broadcast channel is monitored.
12. The child node of claim 9, further comprising:
and the storage module is used for storing the currently used service channel and the network group number after the data report of the reporting module is successful, and taking the frequency point of the service channel and the frequency point contained in the network group number as the default frequency point in the next communication.
13. The child node of claim 9, further comprising:
if the reporting module does not receive the response of the central node after using the service channel broadcasted by the broadcast channel lower than the first noise threshold value to report data to the central node, the reporting module continues to monitor the noise of the next broadcast channel according to the preset sequence of the network group number.
14. The child node of claim 9, wherein the reporting module comprises:
and the reporting submodule reports the monitored data of the broadcast channel to a central node by using the service channel broadcasted by the broadcast channel lower than the first noise threshold so that the central node performs periodic arbitration according to the monitored data and selects the optimal service channel.
15. A central node, comprising:
a broadcasting module, configured to periodically broadcast a currently used service channel to a child node through a preset broadcasting port, so that the child node monitors noise of the service channel, and when it is detected that data is reported to a central node through the current service channel and no response is received from the central node, monitors the noise of the broadcasting channel according to a preset sequence of network group numbers, starting from a network group number stored when a data service is performed last time; when the fact that the noise of the broadcast channel is lower than a first noise threshold value is monitored, a service channel broadcasted by the broadcast channel lower than the first noise threshold value is used for reporting data to a central node; the number of the broadcasting ports is at least one; the broadcast ports correspond to different frequency bands;
and the receiving module is used for monitoring and scanning the frequency bands corresponding to the broadcasting ports and receiving the use conditions of all frequency points in the corresponding frequency bands reported by the sub-nodes through the broadcasting ports.
16. The central node of claim 15, wherein the different frequency bands are frequency bands divided into the entire frequency bands according to the number of broadcast ports; wherein each frequency band corresponds to a broadcast port.
17. A networking ad hoc optimization system, comprising: a child node according to any one of claims 9-14 and a central node according to any one of claims 15-16.
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| CN108495292B (en) * | 2018-03-14 | 2021-08-03 | 成都科木信息技术有限公司 | Intelligent household short-distance equipment communication method |
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