CN114465906A - Network topology generation method and device, storage medium and electronic device - Google Patents
Network topology generation method and device, storage medium and electronic device Download PDFInfo
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Abstract
The invention provides a method, a device, a storage medium and an electronic device for generating a network topology, wherein the method for generating the network topology comprises the following steps: acquiring air interface messages transmitted by different network nodes in a pilot frequency networking, wherein the air interface messages are used for indicating address information corresponding to the different network nodes; acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of the different network nodes; the network topology of the pilot frequency networking is generated according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table, the problem of how to determine the topological connection relation in the pilot frequency networking in the related technology is solved, and a method for determining the topological connection relation in the pilot frequency networking is provided.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for generating a network topology, a storage medium, and an electronic apparatus.
Background
At present, a networking communication protocol of an internet of things power device node used by a national power grid adopts a Long range Radio (LoRa) communication technology, which can realize LoRa wireless signal coverage in an application scene through an access node and a plurality of sink nodes, wherein a sensor can be used as a terminal device in a wireless network and wirelessly accessed to the network through LoRa, and data transmitted in the sensor is uploaded to the access node through the sink nodes in a multi-hop manner.
In the related art, the sink nodes adopt a pilot frequency networking mode, the connection relationship between the sensor and the sink nodes cannot be directly determined, the data communication process of a wireless network cannot be monitored, and the overhaul and maintenance of equipment are not facilitated.
Aiming at the problem of how to determine the topological connection relation in the pilot frequency network in the related technology, an effective technical scheme is not provided yet.
Disclosure of Invention
The embodiment of the invention provides a method, a device, a storage medium and an electronic device for generating a network topology, which are used for at least solving the problem of how to determine the topology connection relation in a pilot frequency network in the related art.
According to an embodiment of the present invention, a method for generating a network topology is provided, where air interface messages transmitted by different network nodes in an inter-frequency networking are acquired, where the air interface messages are used to indicate address information corresponding to the different network nodes; acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes; and generating the network topology of the pilot frequency networking according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
Further, in an exemplary embodiment, determining the upstream and downstream relationship of the inter-frequency networking according to the source address information and the destination address information of the different network nodes includes: under the condition that the destination address information of a first network node is determined to be consistent with the source address information of a second network node, determining the second network node to be a downstream node of the first network node; determining that a third network node is an upstream node of the first network node when it is determined that source address information of the first network node is consistent with destination address information of the third network node; determining upstream and downstream relations among the first network node, the second network node and the third network node according to the upstream and downstream relations among the first network node, the upstream node and the downstream node, wherein the different network nodes include: the first network node, the second network node and the third network node.
Further, in an exemplary embodiment, after obtaining air interface packets transmitted by different network nodes in the inter-frequency networking, the method further includes: analyzing the signal quality of the air interface message transmitted by a plurality of network nodes; under the condition that the signal quality of a fourth network node is larger than a preset threshold value, determining that the network state of the fourth network node is on-line, and sending the signal quality of the fourth network node to a target object; and under the condition that the signal quality of the fifth network node is smaller than the preset threshold value, determining that the network state of the fifth network node is offline, and sending warning information to the target object.
Further, in an exemplary embodiment, the method further comprises: acquiring network states of different network nodes in the pilot frequency networking; and displaying the network states of the different network nodes in a preset mode on a topology display interface displaying the network topology.
Further, in an exemplary embodiment, the obtaining of the air interface messages transmitted by different network nodes in the inter-frequency networking includes at least one of the following: acquiring air interface messages transmitted by different network nodes through message capturing equipment arranged in the pilot frequency networking; and acquiring the air interface messages transmitted by different network nodes through a plurality of sink nodes arranged in the pilot frequency network.
Further, in an exemplary embodiment, acquiring, by the message capture device, air interface messages transmitted by different network nodes in the inter-frequency networking includes: determining a sweep frequency range of message capturing equipment, wherein the sweep frequency range comprises: communication frequency points supported by different network nodes; and indicating the message capturing equipment to scan in the sweep frequency range so as to obtain air interface messages transmitted by different network nodes in the sweep frequency range.
Further, in an exemplary embodiment, acquiring, by a plurality of aggregation nodes arranged in the inter-frequency networking, air interface packets transmitted by different network nodes includes: setting corresponding sink nodes for each network node to obtain a plurality of sink nodes, wherein the communication frequency point of each sink node is consistent with the communication frequency point of the corresponding network node; and acquiring the air interface messages transmitted by different network nodes through the plurality of sink nodes.
According to still another embodiment of the present invention, there is provided a network topology generation apparatus including: a first obtaining module, configured to obtain air interface messages transmitted by different network nodes in a pilot frequency networking, where the air interface messages are used to indicate address information corresponding to the different network nodes; a second obtaining module, configured to obtain source address information and destination address information in the address information of the different network nodes, and generate an upstream-downstream relationship table of the inter-frequency networking according to the source address information and the destination address information of the different network nodes; and the generating module is used for generating the network topology of the pilot frequency network according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
According to a further aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium having a computer program stored therein, wherein the computer program is arranged to perform the method of any one of the above when executed.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes any one of the methods described above through the computer program.
According to the invention, the air interface messages transmitted by different network nodes in the pilot frequency network are obtained, wherein the air interface messages are used for indicating the address information corresponding to the different network nodes; acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes; the network topology of the pilot frequency network is generated according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table, the problem of how to determine the topological connection relation in the pilot frequency network in the related technology is solved, and a method for determining the topological connection relation in the pilot frequency network is provided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic configuration diagram of a communication manager that executes a network topology generation method of an embodiment of the present invention;
FIG. 2 is a flow diagram of a method of generating a network topology according to an embodiment of the invention;
FIG. 3 is a schematic flow chart of generating a network topology relationship according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a network topology algorithm according to an embodiment of the present invention;
fig. 5 is a schematic diagram (i) illustrating that an air interface message in an LoRa network is captured by a wireless signal capture device according to an embodiment of the present invention;
fig. 6 is a schematic diagram (two) of capturing an air interface message in an LoRa network by a sink node according to an embodiment of the present invention;
fig. 7 is a flowchart (i) of capturing an air interface message in a LoRa network by a wireless signal capturing device according to an embodiment of the present invention;
fig. 8 is a flowchart (ii) of capturing an air interface message in an LoRa network by a sink node according to an embodiment of the present invention;
fig. 9 is a block diagram of a configuration of a network topology generation apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The method embodiments provided by the embodiments of the present invention may be executed in a communication manager or similar computing device. Taking the example of running on a communication manager, fig. 1 is a hardware structure block diagram of a computer terminal of a network topology generation method according to an embodiment of the present invention. As shown in fig. 1, the computer terminal may include one or more (only one shown in fig. 1) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and in an exemplary embodiment, may also include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the computer terminal. For example, the computer terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration with equivalent functionality to that shown in FIG. 1 or with more functionality than that shown in FIG. 1.
The memory 104 may be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the method for determining the request result in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to a computer terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
An embodiment of the present invention provides a method for generating a network topology, and fig. 2 is a flowchart of the method according to the embodiment of the present invention, and as shown in fig. 2, the method includes:
step S202, acquiring air interface messages transmitted by different network nodes in a pilot frequency network, wherein the air interface messages are used for indicating address information corresponding to the different network nodes;
it should be noted that the above inter-frequency networking may be understood as a communication network composed of different communication frequency points. For example, GSM (Global System for Mobile Communications) is a network of inter-frequency networking, GSM is a communication System most widely used in digital wireless telephone technology at present, GSM uses a variant of time division multiple access, and networking is performed by using frequency spacing, and data is digitized and transmitted through a channel group of different frequencies.
In an optional embodiment of the present invention, the process of inter-frequency networking may include: the signal coverage range of the communication base station is divided into three signal sectors, and each signal sector uses different communication frequencies, namely, at least three frequency points are needed in a communication network covered by the communication base station, so that different-frequency networking using different communication frequency points is realized.
Step S204, obtaining source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes;
the upstream-downstream relationship table may be understood as a data table storing data of the upstream-downstream relationship of each network node. For example, in the case that the network node includes node 1 and node 2, the upstream-downstream relationship table may include the upstream relationship between the upstream node corresponding to node 1 and the downstream node corresponding to node 1, and may further include the upstream-downstream relationship between the upstream node corresponding to node 2 and the downstream node corresponding to node 2.
Step S206, generating a network topology of the inter-frequency networking according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
Through the steps, air interface messages transmitted by different network nodes in the pilot frequency networking are obtained, wherein the air interface messages are used for indicating address information corresponding to the different network nodes; acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes; the network topology of the pilot frequency network is generated according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table, the problem of how to determine the topological connection relation in the pilot frequency network in the related technology is solved, and a method for determining the topological connection relation in the pilot frequency network is provided.
In addition, the topological connection relation in the pilot frequency network is determined by the embodiment, so that the optimization process of the network deployment of the pilot frequency network can be realized, and the network deployment efficiency of the pilot frequency network is improved.
It should be noted that the network topology described above can be understood as a mesh structure corresponding to the connection relationship between different network nodes of the inter-frequency networking. The structure type of the network topology may include a bus topology (bus topology), a ring topology (ring topology), a star topology (star topology), a tree topology (tree topology), a mesh topology (net topology), and a node topology.
Specifically, a bus topology (bus topology) is a common and new connection for all devices in a network, and communication data is broadcast through a bus. In a ring topology (ring topology), all devices are connected as a communication ring, and communication data is broadcast through the communication ring.
And the star topology (star topology) is composed of an intermediate master node and a plurality of slave nodes, the intermediate master node can communicate with the slave nodes, but the communication process between the slave nodes must be forwarded by the intermediate master node. The tree topology is an extended structure of a star topology, and is an inverted tree hierarchy having a root node and branch nodes, the nodes are connected in a hierarchy, and information exchange is mainly performed between the upper and lower nodes.
Specifically, the mesh topology (net topology) is divided into a general mesh structure and a fully-connected mesh topology structure, where each node in the general mesh structure is directly connected to at least two other nodes, and each node in the fully-connected mesh topology structure is communicated with all other nodes. The summary topology can be understood as a geometry that abstracts network elements such as workstations, servers and switches in a network communication system into points, abstracts a transmission medium in the network communication system into lines, and then abstracts the network communication system into points and lines.
Optionally, in an exemplary embodiment, in order to better understand how to determine the upstream and downstream relationships of the inter-frequency networking according to the source address information and the destination address information of the different network nodes in step S204, a technical solution is provided, where the specific steps include: under the condition that the destination address information of a first network node is determined to be consistent with the source address information of a second network node, determining the second network node to be a downstream node of the first network node; determining that a third network node is an upstream node of the first network node when it is determined that source address information of the first network node is consistent with destination address information of the third network node; determining upstream and downstream relations among the first network node, the second network node and the third network node according to the upstream and downstream relations among the first network node, the upstream node and the downstream node, wherein the different network nodes include: the first network node, the second network node and the third network node.
It should be noted that, in the process of determining the upstream-downstream relationship of the inter-frequency networking according to the source address information and the destination address information of the different network nodes, the first network node may correspond to one or more third network nodes as an upstream node, and may also correspond to one or more second network nodes as a downstream node of the first network node.
By the embodiment, the method for determining the upstream-downstream relationship between different network nodes in the pilot frequency networking can acquire the data of the upstream-downstream relationship between different network nodes in the pilot frequency networking, so that the monitoring process of data transmission links of different network nodes in the pilot frequency networking and the monitoring and maintenance process of a wireless network are realized.
Optionally, in an exemplary embodiment, after obtaining air interface packets transmitted by different network nodes in a pilot frequency networking, a technical solution is provided, where the specific steps include: analyzing the signal quality of the air interface messages transmitted by a plurality of network nodes; under the condition that the signal quality of a fourth network node is larger than a preset threshold value, determining that the network state of the fourth network node is on-line, and sending the signal quality of the fourth network node to a target object; and under the condition that the signal quality of the fifth network node is smaller than the preset threshold value, determining that the network state of the fifth network node is offline, and sending warning information to the target object.
It should be noted that the preset threshold may be set according to environments where different network nodes in the inter-frequency networking are located, or may be set according to a communication requirement of a user in the inter-frequency networking, which is not limited in the present invention.
It should be noted that the target object may include background personnel for detecting communication performance of different network nodes in the inter-frequency networking, or may include equipment for automatically monitoring or automatically maintaining different network nodes in the inter-frequency networking.
In an optional embodiment of the present invention, when it is determined that the signal quality of the fifth network node is less than the preset threshold, it is determined that the network state of the fifth network node is offline, and a warning message is sent to the target object, so that the target object can be prompted to overhaul the fifth network node.
By the embodiment, the network states of different network nodes in the pilot frequency networking can be monitored, and the monitoring efficiency of the communication performance of different network nodes in the pilot frequency networking is improved.
Optionally, in an exemplary embodiment, a technical solution is further provided, and the specific steps include: acquiring network states of different network nodes in the pilot frequency networking; and displaying the network states of the different network nodes in a preset mode on a topology display interface displaying the network topology.
It should be noted that the preset manner may include displaying the network states of different network nodes in the inter-frequency networking by different lighting colors, for example, in a case that a network node whose network state is online is represented by green, a network node whose network state is offline may be represented by red, or a network node whose network state is offline may be represented by yellow, but is not limited thereto.
By the embodiment, the corresponding topological connection relation in the pilot frequency networking is displayed by displaying the network states of the different network nodes in a preset mode, and the display mode of the topological connection relation is increased.
In addition, the preset manner may further include displaying the network states of different network nodes in the inter-frequency networking at different flashing frequencies, for example, in a case that a network node whose network state is online is displayed at a flashing frequency of 1Hz, a network node whose network state is offline may be displayed using a flashing frequency of 10 Hz.
Further, in an exemplary embodiment, in order to better understand how to acquire the air interface messages transmitted by different network nodes in the inter-frequency networking in step S202, a plurality of implementation schemes are proposed, which include at least one of the following: acquiring air interface messages transmitted by different network nodes through message capturing equipment arranged in the pilot frequency networking; and acquiring the air interface messages transmitted by different network nodes through a plurality of sink nodes arranged in the pilot frequency network.
Optionally, in an exemplary embodiment, a technical scheme for acquiring air interface packets transmitted by different network nodes in a different frequency networking through a packet capturing device is provided, where the specific steps include: determining a sweep frequency range of message capturing equipment, wherein the sweep frequency range comprises: communication frequency points supported by different network nodes; and indicating the message capturing equipment to scan in the sweep frequency range so as to obtain air interface messages transmitted by different network nodes in the sweep frequency range.
It should be noted that the message capturing device may integrate bluetooth and wired communication functions, and then communicate with the intelligent handheld terminal through bluetooth, or communicate with the PC device through a wire, and may capture an air interface message in a frequency sweeping manner, and transmit the air interface message to the intelligent handheld terminal or the PC device.
Further, in an exemplary embodiment, a technical solution is provided for acquiring air interface packets transmitted by different network nodes through a plurality of aggregation nodes configured in the inter-frequency networking, and the specific steps include: setting corresponding sink nodes for each network node to obtain a plurality of sink nodes, wherein the communication frequency point of each sink node is consistent with the communication frequency point of the corresponding network node; and acquiring the air interface messages transmitted by different network nodes through the plurality of sink nodes.
Through the embodiment, the sink node acquires the air interface messages transmitted by the sensors with the same communication frequency point, or the message capturing device acquires the air interface messages transmitted by the sensors with the same communication frequency point, so that the acquisition modes of the wireless messages are enriched, the data volume of the wireless messages is increased, and the generation accuracy of the network topology is also improved.
According to another embodiment of the present invention, a system for generating a network topology is provided, where the system is used to implement the foregoing embodiment and preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function.
Fig. 3 is a schematic flow chart of generating a network topology relationship according to an embodiment of the present invention, and as shown in fig. 3, a specific process includes:
step S302, setting a grabbing wireless frequency (corresponding to the communication frequency);
it should be noted that the sweep frequency range of the network node in the pilot frequency network can be determined by setting the captured radio frequency, so as to obtain the air interface messages transmitted by different network nodes on different radio frequencies.
Step S304: and capturing an air interface message in the LoRa network.
Step S306: and generating an upstream and downstream relation table. And determining the upstream and downstream relation between different network nodes according to the source address information and the target address information carried in the captured air interface message.
Step S308: and judging whether the frequency sweeping is finished, if so, executing the step S310, and if not, executing the step S302.
Step S310: and generating a topological connection relation.
In order to better understand how to generate the upstream and downstream relationship table in step S306, the technical solution for generating the upstream and downstream relationship table may be further explained with reference to fig. 4, where fig. 4 is a schematic flow chart of a network topology algorithm according to an embodiment of the present invention, as shown in fig. 4, a specific process includes:
step S402: and reading the upstream and downstream relation table.
Step S404: and searching the target address information in the message (equivalent to the air interface message).
Step S406: and sequencing the target address information according to the upstream and downstream relation table to obtain a sequencing result.
Step S408: recording a topological connection relation: the topological connection relationship is determined based on the sorting result in step S406.
Step S410: and judging whether the upstream and downstream relation tables are traversed, if so, executing the step S412, and if not, executing the step S402.
Step S412: and outputting the topological connection relation.
Next, a technical scheme for obtaining a network topology relationship through an air interface message acquired by the message capture device will be described with reference to fig. 5. Fig. 5 is a schematic diagram (one) of grabbing an air interface message in an LoRa network by a wireless signal grabbing device according to an embodiment of the present invention, where as shown in fig. 5, the wireless signal grabbing device (equivalent to the message grabbing device) grabs a wireless message (equivalent to the air interface message) transmitted by a sensor (equivalent to the network node) in the network, sends the wireless message to a PC or an intelligent handheld terminal in a serial communication manner or a bluetooth communication manner, analyzes and processes the wireless message by using a topology display tool in the PC or the intelligent handheld terminal, obtains a source address, a target address and a signal strength in the wireless message, generates a topology connection relationship by a topology generation algorithm, stores data of the topology connection relationship, and displays a topology diagram corresponding to the topology connection relationship through a display interface of the topology display tool.
And comparing the data of the topological connection relation with the topological data stored in the historical record to judge whether the offline equipment exists or not, and if the offline equipment is determined to exist, displaying the offline equipment through an interface.
In an optional embodiment of the present invention, the topological graph may be enlarged or reduced to facilitate viewing of the topological connection relationship.
In an optional embodiment of the present invention, by selecting any node of the topological connection relationship, the signal quality of any node and the upstream and downstream relationship information can be checked, where the upstream and downstream relationship information includes, but is not limited to, the device ID and the signal quality.
In an optional embodiment of the invention, the grabbing frequency of the wireless signal grabbing equipment is set through the topology display tool, and the sweep frequency range is set.
In an optional embodiment of the present invention, the comparison result is generated by comparing the signal quality of any node and the upstream and downstream nodes obtained by statistics of the topology display tool with the determination standard, and the comparison result is displayed through the display interface of the topology display tool, where the determination standard may be set by the topology display tool.
In one embodiment, the target address of any node is retrieved by reading the upstream and downstream relationship table, the target addresses are sorted in a parent-child manner according to the upstream and downstream relationship, the connection relationship of the nodes is determined according to the sorting result, so that the topological connection relationship is generated, after traversing all the upstream and downstream relationship tables, the topological connection relationship table can be generated, and the topological connection relationship table is stored.
Further, in this embodiment, an LORA network air interface message is captured in a frequency sweep manner, data analysis is performed by a topology display tool, a topology connection relationship is generated by a topology generation algorithm, and a display interface of the topology display tool displays the topology relationship.
The topology generation algorithm comprises the following steps: analyzing the air interface message, acquiring address information and signal strength in the air interface message, generating an upstream and downstream relation table, and continuously accumulating data in the upstream and downstream relation table. And generating a connection relation between the nodes according to the target address and the source address information in the upstream and downstream relation table, thereby obtaining a topological relation.
It should be noted that, the wireless signal capturing device integrates bluetooth and wired communication functions, and can communicate with the intelligent handheld terminal through bluetooth or communicate with the PC device through a wire. In addition, the wireless signal capturing device can capture an air interface message in a frequency sweeping mode, transmit the air interface message to the intelligent handheld terminal or the PC device, and analyze and process the air interface message by a topology display tool on the intelligent handheld terminal or the PC device.
It should be noted that the sink node may be understood as a sink node device with a display function, and directly capture data, i.e., a wireless packet, on a wireless link, analyze the wireless packet by using a topology generation algorithm, obtain a topology connection relationship of a network node, and display the topology connection relationship. For a network with a huge topological connection relation, the sink node supports split screen display, supports information query of online equipment and offline equipment, and supports scaling adjustment of a topological graph.
In an optional embodiment of the present invention, as shown in fig. 6, a technical solution for obtaining a network topology relationship through an air interface message obtained by a sink node is further provided, fig. 6 is a schematic diagram (two) of grabbing an air interface message in a LoRa network through a sink node according to an embodiment of the present invention, and in fig. 6, a wireless message transmitted by a sensor having the same communication frequency point is obtained through the sink node, wherein a bluetooth communication function is integrated in the sink node, so that data transmission can be performed with an intelligent handheld terminal through bluetooth, and after the intelligent handheld terminal receives the wireless message sent by the sink node, a topology connection relationship is determined through a topology display tool, and monitoring of a network topology is achieved.
It should be noted that, in an optional embodiment of the present invention, a topology display tool may be deployed on the upper computer, the sink node may communicate with the upper computer in a wired manner, and the upper computer may generate a network topology based on a wireless packet sent by the sink node and monitor a network state of the network topology.
By the embodiment, the topological connection relation can be determined in the network deployment stage, the signal blind area is avoided, the network deployment cost is reduced, the communication monitoring of the network topology is realized in the normal use stage of the network, and the network monitoring and maintenance by maintenance personnel are facilitated.
The technical scheme of the embodiment can evaluate the network deployment quality, provides a technical evaluation means for the deployment quality, is convenient for evaluating the data communication performance and the data routing quality of the sensor, and is also convenient for monitoring the network state of the network nodes in the whole network.
In an optional embodiment of the present invention, a process of capturing an air interface message in an LoRa network by a wireless signal capturing device is described with reference to fig. 7, where fig. 7 is a flowchart (one) of capturing an air interface message in an LoRa network by a wireless signal capturing device according to an embodiment of the present invention, and the specific steps are as follows:
step S701: acquiring air interface messages transmitted by different network nodes in a pilot frequency networking;
step S702: determining a sweep frequency range of the wireless signal grabbing equipment;
it should be noted that the sweep frequency range includes communication frequency points supported by different network nodes in the inter-frequency networking.
Step S703: indicating the wireless signal capturing equipment to scan air interface messages transmitted by different network nodes in the pilot frequency network in a frequency sweeping range to obtain a scanning result;
step S704: and determining air interface messages transmitted by different network nodes in the sweep frequency range according to the scanning result.
In an optional embodiment of the present invention, a process of capturing an air interface message in an LoRa network by a sink node is described with reference to fig. 8, where fig. 8 is a flowchart (ii) of capturing an air interface message in an LoRa network by a sink node according to an embodiment of the present invention, and the specific steps are as follows:
step S801: acquiring air interface messages transmitted by different network nodes in a pilot frequency networking;
step S802: determining sink nodes corresponding to the network nodes, wherein the communication frequency point of each sink node is consistent with the communication frequency point of the corresponding network node;
step S803: and respectively acquiring air interface messages transmitted by different network nodes through a plurality of sink nodes.
It should be noted that, under the condition that the communication frequency point of the aggregation node is consistent with the communication frequency point of the network node, one aggregation node may obtain an air interface message of one or more network nodes, which is not limited in the present invention.
Fig. 9 is a block diagram of a network topology generation apparatus according to an embodiment of the present invention. As shown in fig. 9, includes:
a first obtaining module 92, configured to obtain air interface messages transmitted by different network nodes in a pilot frequency networking, where the air interface messages are used to indicate address information corresponding to the different network nodes;
it should be noted that the above inter-frequency networking may be understood as a communication network composed of different communication frequency points. For example, GSM (Global System for Mobile Communications) is a network of inter-frequency networking, GSM is a communication System most widely used in digital wireless telephone technology at present, GSM uses a variant of time division multiple access, and networking is performed by using frequency spacing, and data is digitized and transmitted through a channel group of different frequencies.
In an optional embodiment of the present invention, the process of inter-frequency networking may include: the signal coverage range of the communication base station is divided into three signal sectors, and each signal sector uses different communication frequencies, namely, at least three frequency points are needed in a communication network covered by the communication base station, so that different-frequency networking using different communication frequency points is realized.
A second obtaining module 94, configured to obtain source address information and destination address information in the address information of the different network nodes, and generate an upstream-downstream relationship table of the inter-frequency networking according to the source address information and the destination address information of the different network nodes;
the upstream-downstream relationship table may be understood as a data table storing data of the upstream-downstream relationship of each network node. For example, in the case that the network node includes node 1 and node 2, the upstream-downstream relationship table may include the upstream relationship between the upstream node corresponding to node 1 and the downstream node corresponding to node 1, and may further include the upstream-downstream relationship between the upstream node corresponding to node 2 and the downstream node corresponding to node 2.
A generating module 96, configured to generate a network topology of the inter-frequency networking according to the upstream and downstream relationships of different network nodes in the upstream and downstream relationship table.
Through the device, air interface messages transmitted by different network nodes in the pilot frequency networking are obtained, wherein the air interface messages are used for indicating address information corresponding to the different network nodes; acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes; the network topology of the pilot frequency network is generated according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table, the problem of how to determine the topological connection relation in the pilot frequency network in the related technology is solved, and a method for determining the topological connection relation in the pilot frequency network is provided.
It should be noted that the network topology described above can be understood as a mesh structure corresponding to the connection relationship between different network nodes of the inter-frequency networking. The structure type of the network topology may include a bus topology (bus topology), a ring topology (ring topology), a star topology (star topology), a tree topology (tree topology), a mesh topology (net topology), and a node topology.
Specifically, a bus topology (bus topology) is a common and new connection for all devices in a network, and communication data is broadcast through a bus. In a ring topology (ring topology), all devices are connected as a communication ring, and communication data is broadcast through the communication ring.
And the star topology (star topology) is composed of an intermediate master node and a plurality of slave nodes, the intermediate master node can communicate with the slave nodes, but the communication process between the slave nodes must be forwarded by the intermediate master node. The tree topology is an extended structure of a star topology, and is an inverted tree hierarchy having a root node and branch nodes, the nodes are connected in a hierarchy, and information exchange is mainly performed between the upper and lower nodes.
Specifically, the mesh topology (net topology) is divided into a general mesh structure and a fully-connected mesh topology structure, where each node in the general mesh structure is directly connected to at least two other nodes, and each node in the fully-connected mesh topology structure is communicated with all other nodes. The summary topology can be understood as a geometry that abstracts network elements such as workstations, servers and switches in a network communication system into points, abstracts a transmission medium in the network communication system into lines, and then abstracts the network communication system into points and lines.
In an optional embodiment of the present invention, the second obtaining module is further configured to determine that the second network node is a downstream node of the first network node when it is determined that destination address information of the first network node is consistent with source address information of the second network node; determining that a third network node is an upstream node of the first network node when it is determined that source address information of the first network node is consistent with destination address information of the third network node; determining upstream and downstream relations among the first network node, the second network node and the third network node according to the upstream and downstream relations among the first network node, the upstream node and the downstream node, wherein the different network nodes include: the first network node, the second network node and the third network node.
It should be noted that, in the process of determining the upstream-downstream relationship of the inter-frequency networking according to the source address information and the destination address information of the different network nodes, the first network node may correspond to one or more third network nodes as an upstream node, and may also correspond to one or more second network nodes as a downstream node of the first network node.
By the embodiment, the method for determining the upstream-downstream relationship of different network nodes in the pilot frequency networking can acquire the data of the upstream-downstream relationship between different network nodes in the pilot frequency networking, and further realize the monitoring process of data transmission links of different network nodes in the pilot frequency networking. In an optional embodiment of the present invention, the apparatus for generating a network topology further includes an analyzing module, configured to analyze signal quality of the air interface packet transmitted by multiple network nodes; under the condition that the signal quality of a fourth network node is larger than a preset threshold value, determining that the network state of the fourth network node is on-line, and sending the signal quality of the fourth network node to a target object; and under the condition that the signal quality of the fifth network node is smaller than the preset threshold value, determining that the network state of the fifth network node is offline, and sending warning information to the target object.
It should be noted that the preset threshold may be set according to environments where different network nodes in the inter-frequency networking are located, or may be set according to a communication requirement of a user in the inter-frequency networking, which is not limited in the present invention.
It should be noted that the target object may include background personnel for detecting communication performance of different network nodes in the inter-frequency networking, or may include equipment for automatically monitoring or automatically maintaining different network nodes in the inter-frequency networking.
In an optional embodiment of the present invention, when it is determined that the signal quality of the fifth network node is less than the preset threshold, it is determined that the network state of the fifth network node is offline, and a warning message is sent to the target object, so that the target object can be prompted to overhaul the fifth network node.
By the embodiment, the network states of different network nodes in the pilot frequency networking can be monitored, and the monitoring efficiency of the communication performance of different network nodes in the pilot frequency networking is improved.
In an optional embodiment of the present invention, the apparatus for generating a network topology further includes a network state obtaining module, configured to obtain network states of different network nodes in the inter-frequency networking; and displaying the network states of the different network nodes in a preset mode on a topology display interface displaying the network topology.
It should be noted that the preset manner may include displaying the network states of different network nodes in the inter-frequency networking by different lighting colors, for example, in a case that a network node whose network state is online is represented by green, a network node whose network state is offline may be represented by red, or a network node whose network state is offline may be represented by yellow, but is not limited thereto.
In addition, the preset manner may further include displaying the network states of different network nodes in the inter-frequency networking at different flashing frequencies, for example, the network node whose network state is offline may be displayed using a flashing frequency of 10Hz when the network node whose network state is online is displayed at a flashing frequency of 1 Hz.
In an optional embodiment of the present invention, the first obtaining module is further configured to implement a technical solution of at least one of: acquiring air interface messages transmitted by different network nodes through message capturing equipment arranged in the pilot frequency networking; and acquiring the air interface messages transmitted by different network nodes through a plurality of sink nodes arranged in the pilot frequency network.
It should be noted that the message capturing device may integrate bluetooth and wired communication functions, and then communicate with the intelligent handheld terminal through bluetooth, or communicate with the PC device through a wire, and may capture an air interface message in a frequency sweeping manner, and transmit the air interface message to the intelligent handheld terminal or the PC device.
In an optional embodiment of the present invention, the first obtaining module further includes a first message obtaining unit, configured to determine a frequency sweep range of the message capturing device, where the frequency sweep range includes: communication frequency points supported by different network nodes; and indicating the message capturing equipment to scan in the sweep frequency range so as to obtain air interface messages transmitted by different network nodes in the sweep frequency range.
Through the embodiment, the sink node acquires the air interface messages transmitted by the sensors with the same communication frequency point, or the message capturing device acquires the air interface messages transmitted by the sensors with the same communication frequency point, so that the acquisition modes of the wireless messages are enriched, the data volume of the wireless messages is increased, and the generation accuracy of the network topology is also improved.
In an optional embodiment of the present invention, the first obtaining module further includes a second packet obtaining unit, configured to set a corresponding sink node for each network node, so as to obtain the plurality of sink nodes, where a communication frequency point of each sink node is consistent with a communication frequency point of the corresponding network node; and acquiring the air interface messages transmitted by different network nodes through the plurality of sink nodes.
An embodiment of the present invention further provides a storage medium including a stored program, wherein the program executes any one of the methods described above.
Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, acquiring air interface messages transmitted by different network nodes in the pilot frequency network, wherein the air interface messages are used for indicating address information corresponding to the different network nodes;
s2, acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes;
and S3, generating the network topology of the pilot frequency network according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, acquiring air interface messages transmitted by different network nodes in the pilot frequency network, wherein the air interface messages are used for indicating address information corresponding to the different network nodes;
s2, acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes;
s3, generating the network topology of the pilot frequency network according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for generating a network topology, comprising:
acquiring air interface messages transmitted by different network nodes in a pilot frequency networking, wherein the air interface messages are used for indicating address information corresponding to the different network nodes;
acquiring source address information and destination address information in the address information of different network nodes, and generating an upstream and downstream relation table of the pilot frequency network according to the source address information and the destination address information of different network nodes;
and generating the network topology of the pilot frequency networking according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
2. The method according to claim 1, wherein determining the upstream and downstream relationship of the inter-frequency networking according to the source address information and the destination address information of the different network nodes comprises:
under the condition that the destination address information of a first network node is determined to be consistent with the source address information of a second network node, determining the second network node to be a downstream node of the first network node;
determining that a third network node is an upstream node of the first network node when it is determined that source address information of the first network node is consistent with destination address information of the third network node;
determining upstream and downstream relations among the first network node, the second network node and the third network node according to the upstream and downstream relations among the first network node, the upstream node and the downstream node, wherein the different network nodes include: the first network node, the second network node and the third network node.
3. The method according to claim 1, wherein after obtaining air interface packets transmitted by different network nodes in the inter-frequency networking, the method further comprises:
analyzing the signal quality of the air interface message transmitted by a plurality of network nodes;
under the condition that the signal quality of a fourth network node is larger than a preset threshold value, determining that the network state of the fourth network node is on-line, and sending the signal quality of the fourth network node to a target object;
and under the condition that the signal quality of the fifth network node is smaller than the preset threshold value, determining that the network state of the fifth network node is offline, and sending warning information to the target object.
4. The method of generating a network topology according to claim 3, further comprising:
acquiring network states of different network nodes in the pilot frequency networking;
and displaying the network states of the different network nodes in a preset mode on a topology display interface displaying the network topology.
5. The method according to claim 1, wherein obtaining air interface messages transmitted by different network nodes in the inter-frequency networking comprises at least one of:
acquiring air interface messages transmitted by different network nodes through message capturing equipment arranged in the pilot frequency networking;
and acquiring the air interface messages transmitted by different network nodes through a plurality of sink nodes arranged in the pilot frequency network.
6. The method according to claim 5, wherein obtaining, by the message capture device, the air interface messages transmitted by different network nodes in the inter-frequency networking comprises:
determining a sweep frequency range of message capturing equipment, wherein the sweep frequency range comprises: communication frequency points supported by different network nodes;
and indicating the message capturing equipment to scan in the sweep frequency range so as to obtain air interface messages transmitted by different network nodes in the sweep frequency range.
7. The method according to claim 5, wherein obtaining the air interface messages transmitted by different network nodes through a plurality of sink nodes arranged in the inter-frequency networking includes:
setting corresponding sink nodes for each network node to obtain a plurality of sink nodes, wherein the communication frequency point of each sink node is consistent with the communication frequency point of the corresponding network node;
and acquiring the air interface messages transmitted by different network nodes through the plurality of sink nodes.
8. An apparatus for generating a network topology, comprising:
a first obtaining module, configured to obtain air interface messages transmitted by different network nodes in a pilot frequency networking, where the air interface messages are used to indicate address information corresponding to the different network nodes;
a second obtaining module, configured to obtain source address information and destination address information in the address information of the different network nodes, and generate an upstream-downstream relationship table of the inter-frequency networking according to the source address information and the destination address information of the different network nodes;
and the generating module is used for generating the network topology of the pilot frequency networking according to the upstream and downstream relations of different network nodes in the upstream and downstream relation table.
9. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the method of any one of claims 1 to 7 when executed.
10. An electronic device, comprising a memory having a computer program stored therein and a processor arranged to perform the method of any of claims 1 to 7 by means of the computer program.
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