CN111510321A - Network fault processing method and device, computer equipment and storage medium - Google Patents
Network fault processing method and device, computer equipment and storage medium Download PDFInfo
- Publication number
- CN111510321A CN111510321A CN202010189558.4A CN202010189558A CN111510321A CN 111510321 A CN111510321 A CN 111510321A CN 202010189558 A CN202010189558 A CN 202010189558A CN 111510321 A CN111510321 A CN 111510321A
- Authority
- CN
- China
- Prior art keywords
- node
- hop distance
- distance value
- communication transmission
- fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
- H04L41/065—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis involving logical or physical relationship, e.g. grouping and hierarchies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application relates to a network fault processing method, a network fault processing device, computer equipment and a storage medium. The method comprises the following steps: acquiring a first hop distance value corresponding to each communication transmission mode of at least two communication transmission modes, wherein the first hop distance value is a hop distance value corresponding to a path for data transmission with a root node; when a first adjacent node is detected to be a fault node with a fault, eliminating a hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value; determining a target transmission path from the transmission paths corresponding to the second hop distance value; and carrying out network data transmission according to the target transmission path. By adopting the method, the fault recovery can be realized more quickly.
Description
Technical Field
The present application relates to the field of communications network technologies, and in particular, to a network fault processing method and apparatus, a computer device, and a storage medium.
Background
With the rapid development of the internet of things, a network with low construction cost and high performance becomes a scientific research direction. The network based on the random topology with the server as the center meets the requirements of reducing the network construction cost and the requirements of irregular equipment updating on flexibility, and is a preferred scheme for constructing the Internet of things. However, in such a large complex architecture, network failures are catastrophic. Especially in recent years the number of devices connected to a network has increased at a high rate, and it is anticipated that in the near future, everyday objects will be equipped with a microcontroller and can transmit information via a wireless network. Generally speaking, in order to ensure connectivity and scale, a large number of internet of things gateways need to be put into use, and the number of system failures is inevitably increased due to the large amount of data generated by the gateways. With the penetration of the internet of things equipment into daily life, if a failure coping mechanism is not considered in advance, great loss is brought.
At present, most of the traditional internet of things systems have a restart mechanism to deal with the failure. When a fault occurs, the system can be restarted from the root node and automatically recovered from an abnormal working state. But such methods result in long network failure recovery times.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a network failure processing method, apparatus, computer device, and storage medium capable of performing failure recovery more quickly.
A method of network fault handling, the method comprising:
acquiring a first hop distance value corresponding to each communication transmission mode of at least two communication transmission modes, wherein the first hop distance value is a hop distance value corresponding to a path for data transmission with a root node;
when a first adjacent node is detected to be a fault node with a fault, eliminating a hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value;
determining a target transmission path from the transmission paths corresponding to the second hop distance value;
and carrying out network data transmission according to the target transmission path.
A network fault handling apparatus, the apparatus comprising:
an obtaining module, configured to obtain a first hop distance value corresponding to each of at least two communication transmission modes, where the first hop distance value is a hop distance value corresponding to a path where data transmission is performed with a root node;
the detection module is used for eliminating the hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value when the first adjacent node is detected to be the fault node with the fault;
a determining module, configured to determine a target transmission path from the transmission paths corresponding to the second hop distance value;
and the data transmission module is used for transmitting network data according to the target transmission path.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
acquiring a first hop distance value corresponding to each communication transmission mode of at least two communication transmission modes, wherein the first hop distance value is a hop distance value corresponding to a path for data transmission with a root node;
when a first adjacent node is detected to be a fault node with a fault, eliminating a hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value;
determining a target transmission path from the transmission paths corresponding to the second hop distance value;
and carrying out network data transmission according to the target transmission path.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring a first hop distance value corresponding to each communication transmission mode of at least two communication transmission modes, wherein the first hop distance value is a hop distance value corresponding to a path for data transmission with a root node;
when a first adjacent node is detected to be a fault node with a fault, eliminating a hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value;
determining a target transmission path from the transmission paths corresponding to the second hop distance value;
and carrying out network data transmission according to the target transmission path.
According to the network fault processing method, the device, the computer equipment and the storage medium, the hop distance value corresponding to data transmission between the fault node and the first communication transmission mode is eliminated from the first hop distance value corresponding to each communication transmission mode, and the second hop distance value for data transmission between the root node and the second communication transmission mode is obtained, so that a target transmission path is determined to carry out communication, namely the network node supports multiple communication transmission modes, the limitation of the traditional single communication transmission technology is broken through, when a fault is detected, data transmission can be carried out by selecting other communication transmission modes, the data transmission time is saved, and fault recovery can be carried out more quickly.
Drawings
FIG. 1 is a diagram of an exemplary network failure handling method;
FIG. 2 is a diagram of an application environment of a network failure handling method in another embodiment;
FIG. 3 is a flow diagram illustrating a method for handling network failures in one embodiment;
FIG. 4 is a diagram illustrating an application environment in the event of a failure in one embodiment;
FIG. 5 is a graph of the number of communication transports supported as a function of probability in one embodiment;
FIG. 6 is a graph of total data and average network throughput as a function of one embodiment;
FIG. 7 is a graph of total data and average packet delay as a function of one embodiment;
FIG. 8 is a block diagram showing the structure of a network failure processing apparatus according to an embodiment;
FIG. 9 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The network fault processing method provided by the application can be applied to the application environment shown in fig. 1. Including a root node 102, a neighbor node 104, and a current node 106. The root node 102, the neighboring node 104, and the current node 106 are all internet of things devices. The root node 102 and the neighboring node 104 may be servers, or may be a routing device, an internet of things gateway, or the like, but are not limited thereto. The current node 106 may be a server, a routing device, an internet of things gateway or terminal, etc. The root node 102 and the neighboring nodes 104 support at least one communication transport. The current node supports at least two communication transmission modes. The neighboring node 104 may also be the current node, and then both the root node 102 and the current node 106 are neighbors of the neighboring node 104. Both the neighboring node and the current node are relative concepts. The terminal can be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers and portable wearable devices, and the server can be implemented by an independent server or a server cluster formed by a plurality of servers.
In one embodiment, as shown in fig. 2, it is an application environment diagram of a network failure processing method in another embodiment. Fig. 2 is an internet of things system. Included in fig. 2 are root node, node 1, node 2, node 3, node 4, node 5, and other nodes. Taking the current node as the node 4 as an example, the neighboring nodes are the node 1, the node 5 and other nodes. Taking the current node as node 2 as an example, the neighboring nodes of node 2 are root node and node 5. And (n, h and t) are hop distance calculation information, wherein n is a node identifier of the current node, h is a hop distance value, and t is a communication transmission mode identifier. For example, <0,0, t1> is the hop distance value between node 0 and the root node via communication transport t1 is 0. <1,1, t1> indicates that the hop distance value between node 1 and the root node via the communication transmission method t1 is 1.
In one embodiment, as shown in fig. 3, a network failure handling method is provided, which is described by taking the method as an example applied to the current node 106 in fig. 1, and includes the following steps:
The communication transmission mode refers to a mode of transmitting through different communication protocols. The communication transmission method may be at least two types. For example, the communication transmission method may be at least one of a WIFI (Wireless Fidelity) transmission method, a bluetooth transmission method, and a ZigBee (ZigBee) transmission method, but is not limited thereto. The hop-by-hop distance value refers to the distance value between hop segments between two nodes. Which may be considered the length of the transmission path. The first hop distance value is a first hop distance value between the current node and the root node calculated by adopting a certain communication transmission mode. For example, the first hop distance values obtained by adopting the WIFI mode are a1 and a2 … an; the first hop distance values obtained by the bluetooth method are not limited to b1, b2 … bm, and the like. The first hop distance value may refer to a minimum hop distance value corresponding to each transmission mode between the current node and the root node.
Specifically, the data transmission may be data transmission that is performed without direct connection. For example, in fig. 2, node 3 may communicate data with the root node. The first hop distance value between each communication transmission mode and the root node can be obtained through calculation after the network topology is built.
In each internet of things device in the internet of things system, only one data input interface of the same communication transmission mode is provided, and a plurality of data output interfaces of the same communication transmission mode can be provided. For example, only one bluetooth input interface, or only one wifi input interface. As an example, a mobile phone can only be connected to a wifi device, but cannot be connected to the device 1 and the device 2 at the same time, that is, there is only one data interface of the mobile phone in the same communication input mode. However, if the mobile phone supports two communication transmission modes, such as bluetooth and wifi, the mobile phone can actually connect to the device 2 through the bluetooth connection device 1 and the wifi connection device. However, if the mobile phone is used as a routing device and a hot spot is opened, a plurality of other internet of things devices can be accessed to the mobile phone, that is, a plurality of data output interfaces can be provided for the same communication transmission mode of the mobile phone. Therefore, when the current node supports at least two communication transmission modes, the first hop distance value between the current node and the root node corresponding to each communication transmission mode can be obtained.
In this embodiment, the root node sends the hop short distance calculation information to all the neighboring nodes. The hop distance calculation information contains < n, h, t >, which represents the hop distance value h between the node n using the technology t and the root node 0. The node sends computation information to all possible path floods (or no paths but broadcast information) and the information is not forwarded by the receiving nodes. If a node receives information, the corresponding field is checked to find a word of < root,0, t >, and the root refers to the node identifier of the root node, the node can directly receive the information from the root node, and the node knows that the node is a node of an adjacent root. The routing strategy is similar to a distance vector strategy, each node knows the conditions of surrounding adjacent nodes, and greedy searches for the shortest path to the root node.
And 304, when the first adjacent node is detected to be a fault node with a fault, eliminating the hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value.
The adjacent node is a node directly connected with the current node in a communication manner. The exclusion means that the hop distance value associated with the failed node is set to an infinite value, or the hop distance value associated with the failed node is deleted, or the hop distance value associated with the failed node is set to be unusable, or the like, without being limited thereto. The "exclude" operation is used to disable the current node from communicating information to the failed node.
Specifically, when the current node detects that the adjacent node is a failed node with a fault, the hop distance value related to the failed node is eliminated from the first hop distance value to obtain a second hop distance value. For example, if node 3 is adjacent to node 2 and node 2 is connected to the root node, then when node 2 fails, node 3 may also communicate with the root node by connecting to other nodes via the same communication transport that node 2 is connected to.
In this embodiment, as shown in fig. 4, an application environment diagram when a failure occurs in one embodiment is shown. When the node 3 detects that the adjacent node is a failed node, it needs to disconnect from the failed node and re-seek a path to connect with the root node. Then node 3 cannot connect to the failed node via the t1 communication transport, and needs to connect to node 1 instead using the t3 communication transport to communicate with the root node. Similarly, the available node 4 needs to connect to the node 2 by using the t1 communication transmission method instead. Then, taking the current node as the node 3 as an example, and the neighboring node of the node 3 is a failed node, the node 3 needs to eliminate the hop distance value related to the failed node, and the remaining hop distance value is the available hop distance value.
Specifically, the current node may determine a minimum hop distance value from the second hop distance values, and use a transmission path corresponding to the minimum hop distance value as the target transmission path. The minimum hop distance value is the shortest path value between the current node and the root node after the current node avoids the fault node. The data transmission time can be further reduced by adopting the minimum hop distance value. Alternatively, the current node may determine an arbitrary hop distance value from the second hop distance values, and use the hop distance value as the target transmission path. Then the current node determines a minimum hop distance value from the second hop distance values. When only one second hop distance value exists, the transmission path corresponding to the second hop distance value is the target transmission path.
And 308, transmitting the network data according to the target transmission path.
Specifically, as shown in fig. 4, the transmission path from node 4 to the root node is node 4 → node 2 → root node. And the current node transmits the data of the Internet of things according to the target transmission path.
In the network fault processing method, different communication transmission modes comprise different communication distances, different working frequencies, different transmission nodes and the like, therefore, different first hop distance values can be obtained through different communication transmission modes, the first hop distance value corresponding to each communication transmission mode is obtained, when the adjacent node is detected to be the failed node, the hop distance value related to the failed node is eliminated from the second hop distance value to obtain a second hop distance value, determining a target transmission path according to the second hop distance value to realize network data transmission, and automatically selecting a path when a certain node fails, and the system does not need to be restarted, all routing information does not need to be updated, fault recovery can be carried out more quickly, normal operation of the system can be maintained, the throughput of the system is ensured, and the delay of data packets is reduced.
In one embodiment, when it is detected that the neighboring node is a failed node, excluding the hop distance value associated with the failed node to obtain a second hop distance value, the method includes: when detecting that the adjacent node is a fault node with a fault, determining a first communication transmission mode for data transmission with the fault node;
and eliminating the hop distance value corresponding to the data transmission between the first communication transmission mode and the fault node from the first hop distance value to obtain a second hop distance value for data transmission between the second communication transmission mode and the root node, wherein the second communication transmission mode is different from the first communication transmission mode.
The number of the second communication transmission modes is not limited, and may be 1, 2, 3, and the like.
Specifically, the current node supports at least two communication transmission modes, and can be in communication connection with the root node through the at least two communication transmission modes. An internet of things device only has one data input interface through a communication transmission mode. For example, node 3 can only connect to node 2 via bluetooth, but cannot simultaneously connect to node 4 via bluetooth. When the current node detects that the adjacent node is a fault node with a fault, a first communication transmission mode for data transmission with the fault node is determined. And eliminating the hop distance value corresponding to the data transmission between the first transmission mode and the fault node from the first hop distance value, so as to obtain a second hop distance value for data transmission between the second transmission mode and the root node.
According to the network fault processing method, the hop distance value corresponding to data transmission between the first communication transmission mode and the fault node is eliminated from the first hop distance value, and the second hop distance value corresponding to data transmission between the second communication transmission mode and the root node is obtained, wherein the second communication transmission mode is different from the first communication transmission mode, namely the network node supports multiple communication transmission modes, the limitation of the traditional single communication transmission technology is broken through, when the fault is detected, data transmission can be carried out by selecting other communication transmission modes, the data transmission time is saved, the effectiveness of the network system is improved, and the effectiveness of the network system is improved, such as the improvement of the throughput of the internet of things system and the reduction of the delay of data packets.
In one embodiment, the network failure processing method further includes: and when the number of the communication transmission modes is one, restarting the Internet of things from the root node.
Specifically, when the number of the communication transmission modes is only one, that is, the current node can only be connected with the adjacent node, so that data transmission with the root node is realized. When the adjacent node fails, the current node cannot be connected with the adjacent node through the communication transmission mode, and data transmission cannot be performed with the root node. Thus, network transmissions can only be resumed by restarting from the root node.
In one embodiment, acquiring a first hop distance value corresponding to each of at least two communication transmission modes includes: acquiring hop distance calculation information corresponding to each communication transmission mode; sending corresponding hop distance calculation information to an adjacent node corresponding to the communication transmission mode to obtain a reference hop distance value corresponding to data transmission with the adjacent node; acquiring a target hop distance value corresponding to data transmission between an adjacent node and a root node; and obtaining a first hop distance value corresponding to each communication transmission mode according to the reference hop distance value and the target hop distance value.
Specifically, the current node supports at least two communication transmission modes, and acquires hop distance calculation information corresponding to each communication transmission mode. And the current node sends corresponding hop distance calculation information to the adjacent node corresponding to the communication transmission mode to obtain a corresponding reference hop distance value when the current node performs data transmission with the adjacent node. For example, a vector storing routing information, i.e., hop distance calculation information < n, h, t >, is used to update the status with the neighboring nodes and is packed into the stack. Taking a node from the top of the stack, changing the vector < n, h, t >, wherein n represents the node identifier of the current node, and t represents the communication transmission mode identifier, and sending the information to all the adjacent nodes of the current node, namely, until the stack is empty. And the current node acquires a target hop distance value corresponding to the data transmission of the adjacent node and the root node. Then the current node can obtain the first hop distance value corresponding to each communication transmission mode according to the sum of the reference hop distance value and the target hop distance value.
In this embodiment, the first minimum hop distance value corresponding to each communication transmission mode is determined from the first hop distance values corresponding to each communication transmission mode.
According to the network fault processing method, hop distance calculation information corresponding to each communication transmission mode is obtained, a reference hop distance value corresponding to data transmission between the target hop distance value and an adjacent node is obtained, the first hop distance value corresponding to each communication transmission mode can be calculated after the target hop distance value is obtained, and then various communication transmission paths can be obtained for selection, so that the effectiveness of the Internet of things system is improved.
In one embodiment, the computational addressing method of the neighboring node is as follows: let a matrix M be the distance matrix. When the current node X receives a packet to be transmitted to the destination address D, it calculates the distances between all available neighboring nodes Y1, Y2 … Yi and the destination address D and transmits the packet to the neighboring node Y nearest to the destination addressM。
Wherein, YMMeans the node identification, Y, of the nearest neighbor node to the target addressiRefers to the node identification of the available neighboring node corresponding to the current node. Y isi∈CxMeans that the nodes Yi belong to the same Internet of things system CxOf the node (b). Note that the next node should be less distant from the destination address than the current node X.
M(X,D)>M(YM,D)
If X is already the closest to the destination address among all available neighbors, we call the current node X a local closest point to the destination address D.
In one embodiment, the determination method of the neighboring node includes: acquiring a connection relation between each communication transmission mode of at least two communication transmission modes and each node in the Internet of things; constructing an adjacency matrix according to the connection relation, wherein the adjacency matrix is used for representing whether data transmission can be carried out with the nodes through each communication transmission mode; and taking the node corresponding to the preset value of the value in the adjacency matrix as the adjacent node.
Wherein the adjacency matrix is used to indicate whether the two nodes share the alternating topology and whether one of them is within the propagation range of the other.
Specifically, the current node may obtain an interface connection relationship with each node in the internet of things through each of at least two communication transmission modes. And the current node constructs an adjacency matrix Adj _ g (t, k) according to the connection relation. Wherein t represents a communication transmission mode, and k represents a node identification value. For example, the communication transmission modes may include, but are not limited to, t1, t2, and t3 …, and the nodes in the internet of things include, but are not limited to, k1 and k2 …. The values in the adjacency matrix may have 0 and 1, with 0 representing unconnected and 1 representing connected. That is, if the entry < t1, k1> is 1, that is, a certain value in the adjacency matrix is 1, which indicates the current node, data can be transmitted to the node k1 through the technology t1, and the node k1 is in the coverage of the current node under the technology t 1. The page table indicates that two nodes can directly communicate under the same technology and support the same technology. That is, the current node can only transmit data to a node with < t, k > -1, which is a neighbor node of the current node.
According to the network fault processing method, the connection relation between each communication transmission mode of at least two communication transmission modes and each node in the Internet of things is obtained; constructing an adjacency matrix according to the connection relation, wherein the adjacency matrix is used for representing whether data transmission can be carried out with the nodes through each communication transmission mode; and taking the node corresponding to the preset value of the value in the adjacency matrix as an adjacent node, and determining the adjacent node through the adjacency matrix so as to determine a hop distance value between the adjacent node and the node and determine a transmission path.
In one embodiment, the network failure processing method further includes: when the fault node is repaired or the preset time length passes, acquiring hop distance calculation information corresponding to a communication transmission mode; and constructing routing information according to the hop distance calculation information.
Here, the preset time period may be, for example, 1 minute, 2 minutes, 5 minutes, 10 minutes, or the like, but is not limited thereto. The hop distance calculation information refers to information for calculating a hop distance value between nodes. The hop distance calculation information may be < n, h, t >. Wherein n is a node identifier corresponding to a node sending the information, i.e. the "adjacent node" in the above description, h is a hop distance value, and t is a communication transmission mode. The routing information is used for representing node identification, communication transmission mode and hop distance value information.
Specifically, after the failed node is repaired or when the preset time length elapses, the root node sends hop distance calculation information corresponding to the communication transmission mode to the adjacent node, and the adjacent node sends hop distance calculation information corresponding to the communication transmission mode to the adjacent node. The current node may obtain hop distance calculation information corresponding to the communication transmission mode sent by the adjacent node. And the current node constructs routing information according to the hop distance calculation information.
According to the network fault processing method, when the fault node is repaired or the preset time length passes, the hop distance calculation information corresponding to the communication transmission mode is obtained, the routing information is constructed according to the hop distance calculation information, the routing information can be reconstructed after the fault is recovered, the network topology is not updated when the fault occurs, and therefore the response time of the fault is shortened.
In one embodiment, the network failure processing method further includes: and when the joined second adjacent node is detected, the hop distance calculation information is sent to the second adjacent node, so that the second adjacent node constructs a routing table according to the hop distance calculation information.
The second neighboring node may be a node that previously joined the internet of things, but rejoins after going offline later, or a node that never joined the internet of things before, and the like.
Specifically, when the current node detects the joined second adjacent node, hop distance calculation information is sent to the second adjacent node, so that the second adjacent node constructs routing information according to the hop distance calculation information. For example, when a new node accesses, the neighbor node, i.e., the current node, sends the new node the calculation information containing < n, h, t >. And the newly added node constructs a routing table according to the received hop distance calculation information.
According to the network fault processing method, when the second adjacent node is detected to be added, hop distance calculation information is sent to the second adjacent node, so that the second adjacent node constructs routing information according to the hop distance calculation information, therefore, when a new node is added into the Internet of things, the routing information only needs to be updated in the new node, the restart from the root node is not needed, and the delay and the reduction of the throughput can be avoided.
In one embodiment, hop distances are compared among the identifiers of all identical communication transports when a node receives a packet. Two nodes D are arranged<d1,d2,……dL>And Y<y1,y2,……yL>The jump distance between two points is CD, k is less than or equal to L, and the jump distance comprises:
if the newly received hop distance is smaller, the node information will be updated.
In one embodiment, an IEEE802.11b protocol communication connection protocol is adopted based on actual user environment, MAT L AB is used to simulate the multi-technology network system fault recovery process, another simulation is made based on a traditional communication topology using one technology, a time scale is extended to an hour, and a program is executed to observe the influence of the number T of communication transmission modes on the network availability.
The number of gateways n is changed and the metrics are observed. Let T remain unchanged, and make the probability p equal to 0.5, the data amount d equal to 12, the number T of communication transmission modes equal to 5, the time h equal to 100, and observe the packet delay and the network average throughput after running 1000 + 2000 h. As the number of communication transmission modes T increases, the communication of multiple technologies may allow the network to operate more efficiently. And as T increases, efficiency tends to be an upper limit for each communication technology. When T is 5, the network throughput curve after 1000-. Since the mean time to recover from a failure is typically much shorter than the time to failure, we assume that each failure will be recovered within 10h, which can also be explained by applying 5 techniques throughout the network system, which diversity can give the gateway enough alternative paths at the time of failure. Therefore, some gateways are failed, and the performance of the whole system is not greatly influenced.
As shown in FIG. 5, the graph shows the probability of successful transmission when the number of communication transmission modes is more, and the dimension of a local area network is L, wherein each node is connected with 2L nodes, and each node is connected with coordinates<x1,x2,……xL>And (4) showing. Is provided with a node X<x1,x2,……xL>And Y<y1,y2,……yL>Let x be the path between two nodes, and assume that none of the other nodes is [0, x ]]Within range, then the probability that X and Y are the nearest neighbors is (1-X)n-2Otherwise, assuming that the next node from the X to Y path is Z and the paths of X and Z are Z, the probability distribution function for Z is (1- (X-Z))n-2,(0<z<x)。
Therefore, the path values of X and the next hop node can be obtained by satisfying the probability distribution function P2 z. with the path values of X and the other 2L-2 neighboring nodes
Where a represents the apel series equation, since the apel term is always negative, it can be derived:
in one embodiment, as shown in FIG. 6, a graph is shown of the total amount of data and the average network throughput in one embodiment. As can be seen from the figure, the larger the number of communication transmission schemes, the larger the average network throughput.
In one embodiment, as shown in FIG. 7, a graph of the total amount of data and the average packet delay is plotted as a function of the average packet delay in one embodiment. As can be seen from the figure, the larger the number of communication transmission schemes, the smaller the average packet delay. As T and d increase, the average packet delay tends to decrease. Simulation results show that the difference between the average data packet delay curve and the ideal fault-free curve is very small. The same assumption is made about the failure recovery time, and when one node of the system fails, because at least one optimal path is affected, the packet delay must be increased, which is inevitable. In contrast to conventional single technology systems, in which one system destroys the entire communication function, this delay is very small and can be substantially ignored in practical applications. The number of T-based gateways is exponentially distributed, resulting in a relatively slow log rate of increase in latency. An increase in network throughput can be achieved without incurring too great a cost. As the range expands, the requirements of the devices on the communication technology also increase, in which case the present invention has great advantages over conventional single technology communication systems. Note that the increased number of gateways also maximizes the bandwidth used per technology. The delay rise is significant because an increased number of gateways will increase the number of failures. In a typical communication path, when one gateway fails, all the resulting transmission delays will be amplified, but if the gateways are dispersed in various layers based on T, the amplification benefit will be minimized.
In one embodiment, a network failure handling method includes:
step a1, acquiring the connection relation between each communication transmission mode of at least two communication transmission modes and each node in the internet of things.
Step a2, constructing an adjacency matrix according to the connection relation, wherein the adjacency matrix is used for representing whether data transmission can be carried out with nodes in the internet of things through each communication transmission mode.
And a3, taking the node corresponding to the preset value of the value in the adjacency matrix as the adjacent node.
Step a4, obtaining hop distance calculation information corresponding to each communication transmission mode in at least two communication transmission modes.
Step a5, sending the corresponding hop distance calculation information to the adjacent node corresponding to each communication transmission mode, and obtaining the reference hop distance value corresponding to the data transmission with the adjacent node.
Step a6, obtaining a target hop distance value corresponding to data transmission between the neighboring node and the root node.
Step a7, obtaining a first hop distance value corresponding to each communication transmission mode according to the reference hop distance value and the target hop distance value, wherein the first hop distance value is a hop distance value corresponding to a path for data transmission with the root node.
Step a8, when detecting that the first adjacent node is a failed node, determining a first communication transmission mode for data transmission with the failed node.
Step a9, excluding the hop distance value corresponding to the data transmission between the first communication transmission mode and the fault node from the first hop distance value, and obtaining a second hop distance value for data transmission between the second communication transmission mode and the root node, wherein the second communication transmission mode is different from the first communication transmission mode.
Step a10, determining a target transmission path from the transmission paths corresponding to the second hop distance value.
And a step a11, carrying out network data transmission according to the target transmission path.
Step a12, when the fault node is repaired or the preset time length is passed, obtaining the hop distance calculation information corresponding to the communication transmission mode.
And a step a13, constructing routing information according to the hop distance calculation information.
And a14, when the joined second adjacent node is detected, sending hop distance calculation information to the second adjacent node, so that the second adjacent node constructs routing information according to the hop distance calculation information.
And a15, restarting the Internet of things from the root node when the number of the communication transmission modes is one.
According to the network fault processing method, different communication transmission modes have different communication distances, working frequencies, transmission nodes and the like, so that different first hop distance values can be obtained through different communication transmission modes, the first hop distance value corresponding to each communication transmission mode is obtained, when an adjacent node is detected to be a failed node, the hop distance value related to the failed node is eliminated from the second hop distance value to obtain the second hop distance value, a target transmission path is determined according to the second hop distance value to realize network data transmission, when a certain node fails, a path can be selected autonomously, the system does not need to be restarted, all routing information does not need to be updated, normal operation of the system can be maintained, throughput of the system is guaranteed, and delay of data packets is reduced.
It should be understood that although the steps in the diagrams of fig. 2 to 4 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2 to 4 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the other steps or stages.
In one embodiment, as shown in fig. 8, a block diagram of a network failure processing apparatus in one embodiment is shown. A network fault handling apparatus comprising: an obtaining module 802, a detecting module 804, a determining module 806, and a data transmitting module 808, wherein:
an obtaining module 802, configured to obtain a first hop distance value corresponding to each of at least two communication transmission modes, where the first hop distance value is a hop distance value corresponding to a path where data transmission is performed with a root node;
a detecting module 804, configured to, when it is detected that the first neighboring node is a failed node that has a failure, eliminate a hop distance value related to the failed node from the first hop distance value, to obtain a second hop distance value;
a determining module 806, configured to determine a target transmission path from the transmission paths corresponding to the second hop distance value;
and a data transmission module 808, configured to perform network data transmission according to the target transmission path.
The network fault processing device has different communication transmission modes such as different communication distances, different working frequencies, different transmission nodes and the like, therefore, different first hop distance values can be obtained through different communication transmission modes, the first hop distance value corresponding to each communication transmission mode is obtained, when the adjacent node is detected to be the failed node, the hop distance value related to the failed node is eliminated from the second hop distance value to obtain a second hop distance value, determining a target transmission path according to the second hop distance value to realize network data transmission, and automatically selecting a path when a certain node fails, and the system does not need to be restarted, all routing information does not need to be updated, the normal operation of the system can be maintained, the fault recovery can be carried out more quickly, the throughput of the system is ensured, and the delay of data packets is reduced.
In one embodiment, the detecting module 804 is configured to determine, when it is detected that the neighboring node is a failed node that has a failure, a first communication transmission mode for data transmission with the failed node; and eliminating the hop distance value corresponding to the data transmission between the first communication transmission mode and the fault node from the first hop distance value to obtain a second hop distance value for data transmission between the second communication transmission mode and the root node, wherein the second communication transmission mode is different from the first communication transmission mode.
According to the network fault processing device, the hop distance value corresponding to data transmission between the first communication transmission mode and the fault node is eliminated from the first hop distance value, and the second hop distance value corresponding to data transmission between the second communication transmission mode and the root node is obtained, wherein the second communication transmission mode is different from the first communication transmission mode, namely the network node supports multiple communication transmission modes, the limitation of the traditional single communication transmission technology is broken through, when the fault is detected, data transmission can be carried out by selecting other communication transmission modes, the data transmission time is saved, the effectiveness of a network system is improved, and the effectiveness of the network system is improved, such as the improvement of the throughput of the internet of things system and the reduction of the delay of data packets.
In one embodiment, the network fault handling apparatus further comprises a restart module. The restarting module is used for restarting the Internet of things from the root node when the number of the communication transmission modes is one. When the number of the communication transmission modes is only one, namely the current node can only be connected with the adjacent node, the data transmission with the root node is realized. When the adjacent node fails, the current node cannot be connected with the adjacent node through the communication transmission mode, and data transmission cannot be performed with the root node. Thus, network transmissions can only be resumed by restarting from the root node.
In one embodiment, the obtaining module 802 is configured to obtain hop distance calculation information corresponding to each communication transmission mode; sending corresponding hop distance calculation information to an adjacent node corresponding to the communication transmission mode to obtain a reference hop distance value corresponding to data transmission with the adjacent node; acquiring a target hop distance value corresponding to data transmission between an adjacent node and a root node; and obtaining a first hop distance value corresponding to each communication transmission mode according to the reference hop distance value and the target hop distance value.
According to the network fault processing device, hop distance calculation information corresponding to each communication transmission mode is obtained, a reference hop distance value corresponding to data transmission between the network fault processing device and an adjacent node is obtained, and then a target hop distance value is obtained, namely a first hop distance value corresponding to each communication transmission mode can be calculated, so that various communication transmission paths can be obtained for selection, and therefore the effectiveness of the Internet of things system is improved.
In one embodiment, the obtaining module 802 is configured to obtain a connection relationship between each of at least two communication transmission modes and each node in the internet of things; constructing an adjacency matrix according to the connection relation, wherein the adjacency matrix is used for representing whether data transmission can be carried out with the nodes through each communication transmission mode; and taking the node corresponding to the preset value of the value in the adjacency matrix as the adjacent node.
The network fault processing device acquires the connection relation between each communication transmission mode of at least two communication transmission modes and each node in the Internet of things; constructing an adjacency matrix according to the connection relation, wherein the adjacency matrix is used for representing whether data transmission can be carried out with the nodes through each communication transmission mode; and taking the node corresponding to the preset value of the value in the adjacency matrix as an adjacent node, and determining the adjacent node through the adjacency matrix so as to determine a hop distance value between the adjacent node and the node and determine a transmission path.
In an embodiment, the obtaining module 802 is further configured to obtain hop distance calculation information corresponding to a communication transmission mode when the failed node is repaired or a preset duration elapses; and constructing routing information according to the hop distance calculation information.
According to the network fault processing device, when the fault node is repaired or the preset time length passes, the hop distance calculation information corresponding to the communication transmission mode is obtained, the routing information is constructed according to the hop distance calculation information, the routing information can be reconstructed after the fault is recovered, the network topology is not updated when the fault occurs, and therefore the response time of the fault is shortened.
In one embodiment, the network fault handling apparatus further comprises a sending module. And the sending module is used for sending hop distance calculation information to the second adjacent node when the added second adjacent node is detected, so that the second adjacent node constructs a routing table according to the hop distance calculation information.
According to the network fault processing device, when the second adjacent node is detected to be added, hop distance calculation information is sent to the second adjacent node, so that the second adjacent node constructs routing information according to the hop distance calculation information, therefore, when a new node is added into the Internet of things, the routing information only needs to be updated in the new node, the restart from the root node is not needed, and the delay and the reduction of the throughput can be avoided.
For specific limitations of the network fault handling apparatus, reference may be made to the above limitations of the network fault handling method, which is not described herein again. The modules in the network fault processing device can be wholly or partially implemented by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a network failure handling method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method in the above embodiments when executing the computer program.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method in the respective embodiments described above.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for handling network failures, the method comprising:
acquiring a first hop distance value corresponding to each communication transmission mode of at least two communication transmission modes, wherein the first hop distance value is a hop distance value corresponding to a path for data transmission with a root node;
when a first adjacent node is detected to be a fault node with a fault, eliminating a hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value;
determining a target transmission path from the transmission paths corresponding to the second hop distance value;
and carrying out network data transmission according to the target transmission path.
2. The method of claim 1, wherein when it is detected that the first neighboring node is a failed node, excluding a hop distance value associated with the failed node from the first hop distance values to obtain a second hop distance value, comprising:
when detecting that a first adjacent node is a fault node with a fault, determining a first communication transmission mode for data transmission with the fault node;
and excluding the hop distance value corresponding to the data transmission between the first communication transmission mode and the fault node from the first hop distance value to obtain a second hop distance value for data transmission between the second communication transmission mode and the root node, wherein the second communication transmission mode is different from the first communication transmission mode.
3. The method of claim 2, further comprising:
and when the number of the communication transmission modes is one, restarting the Internet of things from the root node.
4. The method of claim 1, wherein obtaining the first hop distance value corresponding to each of at least two communication transmission modes comprises:
acquiring hop distance calculation information corresponding to each communication transmission mode in at least two communication transmission modes;
sending the corresponding hop distance calculation information to the adjacent node corresponding to each communication transmission mode to obtain a reference hop distance value corresponding to data transmission between the adjacent node and the hop distance value;
acquiring a target hop distance value corresponding to data transmission between the adjacent node and the root node;
and obtaining a first hop distance value corresponding to each communication transmission mode according to the reference hop distance value and the target hop distance value.
5. The method of claim 4, wherein the determining of the neighboring node comprises:
acquiring a connection relation between each communication transmission mode of at least two communication transmission modes and each node in the Internet of things;
constructing an adjacency matrix according to the connection relation, wherein the adjacency matrix is used for representing whether data transmission can be carried out between the nodes in the Internet of things through each communication transmission mode;
and taking the node corresponding to the preset value of the value in the adjacency matrix as an adjacent node.
6. The method according to any one of claims 1 to 5, further comprising:
when the fault node is repaired or a preset time length passes, acquiring hop distance calculation information corresponding to the communication transmission mode;
and constructing routing information according to the hop distance calculation information.
7. The method according to any one of claims 1 to 5, further comprising:
and when the joined second adjacent node is detected, sending hop distance calculation information to the second adjacent node so that the second adjacent node constructs routing information according to the hop distance calculation information.
8. A network fault handling apparatus, the apparatus comprising:
an obtaining module, configured to obtain a first hop distance value corresponding to each of at least two communication transmission modes, where the first hop distance value is a hop distance value corresponding to a path where data transmission is performed with a root node;
the detection module is used for eliminating the hop distance value related to the fault node from the first hop distance value to obtain a second hop distance value when the first adjacent node is detected to be the fault node with the fault;
a determining module, configured to determine a target transmission path from the transmission paths corresponding to the second hop distance value;
and the data transmission module is used for transmitting network data according to the target transmission path.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910983147X | 2019-10-16 | ||
| CN201910983147 | 2019-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111510321A true CN111510321A (en) | 2020-08-07 |
| CN111510321B CN111510321B (en) | 2023-05-16 |
Family
ID=71875690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010189558.4A Active CN111510321B (en) | 2019-10-16 | 2020-03-18 | Network fault processing method, device, computer equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111510321B (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002064515A (en) * | 2000-08-23 | 2002-02-28 | Funai Electric Co Ltd | Information transmission system and information transmission method |
| US20030063613A1 (en) * | 2001-09-28 | 2003-04-03 | Carpini Walter Joseph | Label switched communication network and system and method for path restoration |
| WO2009053477A1 (en) * | 2007-10-26 | 2009-04-30 | Siemens Aktiengesellschaft | Method, system and network nodes for network reconfiguration in a multi-hop wireless communication network |
| US20100039931A1 (en) * | 2007-11-22 | 2010-02-18 | Huawei Technologies Co., Ltd. | Method, device and system for updating routes after node fails in p2p network |
| CN102075360A (en) * | 2011-01-19 | 2011-05-25 | 中国人民解放军信息工程大学 | Aggregation equivalence class-based network fault distributed processing method |
| CN104375057A (en) * | 2014-11-07 | 2015-02-25 | 国网上海市电力公司 | Automatic underground power line fault positioning and warning system |
| CN105451165A (en) * | 2015-12-01 | 2016-03-30 | 中国通信建设集团设计院有限公司 | Near field communication method and device based on multiple protocols |
| CN105744587A (en) * | 2016-01-27 | 2016-07-06 | 中国铁道科学研究院电子计算技术研究所 | Data transmission method and device for linear wireless sensor network |
| JP2017017543A (en) * | 2015-07-01 | 2017-01-19 | 日本電気株式会社 | Communication device, control method therefor, and program |
| US20170127468A1 (en) * | 2014-03-28 | 2017-05-04 | Nec Corporation | Wireless terminal, metering device, and communication control method |
| CN106657269A (en) * | 2016-11-16 | 2017-05-10 | 西安诺瓦电子科技有限公司 | File transmission method |
| US20170150418A1 (en) * | 2015-11-23 | 2017-05-25 | Electronics And Telecommunications Research Institute | Mobile ad-hoc routing apparatus and method |
| CN107529196A (en) * | 2017-08-24 | 2017-12-29 | 深圳市盛路物联通讯技术有限公司 | A kind of method and system of the data transmission of internet of things based on dummy node |
| CN107809782A (en) * | 2017-09-08 | 2018-03-16 | 深圳市盛路物联通讯技术有限公司 | Internet of things data transmission method and storage medium |
| CN108023748A (en) * | 2016-11-03 | 2018-05-11 | 北京创昱科技有限公司 | A kind of micro-capacitance sensor communication control method, apparatus and system |
| CN108521319A (en) * | 2018-04-09 | 2018-09-11 | 郑州琼佩电子技术有限公司 | A kind of buoy redundance communicating method based on high in the clouds storage |
| CN108770031A (en) * | 2018-03-21 | 2018-11-06 | 深圳市海司恩科技有限公司 | Dynamic path planning method, active path planning system and storage medium |
| CN109327255A (en) * | 2018-09-26 | 2019-02-12 | 中国民航管理干部学院 | A kind of method for routing and system for unmanned plane ad hoc network |
| US20190098542A1 (en) * | 2016-05-11 | 2019-03-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Communication method, terminal device and network device |
| CN109743758A (en) * | 2018-12-28 | 2019-05-10 | 广东中兴新支点技术有限公司 | Multi link communications method, communication device and communication system |
| CN109787838A (en) * | 2019-02-25 | 2019-05-21 | 武汉晟联智融微电子科技有限公司 | Evade the method for failed trunk node in multihop network |
| CN109922485A (en) * | 2019-02-02 | 2019-06-21 | 四川速宝网络科技有限公司 | Intelligent network bridge accelerated method and system based on dual communication devices |
-
2020
- 2020-03-18 CN CN202010189558.4A patent/CN111510321B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002064515A (en) * | 2000-08-23 | 2002-02-28 | Funai Electric Co Ltd | Information transmission system and information transmission method |
| US20030063613A1 (en) * | 2001-09-28 | 2003-04-03 | Carpini Walter Joseph | Label switched communication network and system and method for path restoration |
| WO2009053477A1 (en) * | 2007-10-26 | 2009-04-30 | Siemens Aktiengesellschaft | Method, system and network nodes for network reconfiguration in a multi-hop wireless communication network |
| US20100039931A1 (en) * | 2007-11-22 | 2010-02-18 | Huawei Technologies Co., Ltd. | Method, device and system for updating routes after node fails in p2p network |
| CN102075360A (en) * | 2011-01-19 | 2011-05-25 | 中国人民解放军信息工程大学 | Aggregation equivalence class-based network fault distributed processing method |
| US20170127468A1 (en) * | 2014-03-28 | 2017-05-04 | Nec Corporation | Wireless terminal, metering device, and communication control method |
| CN104375057A (en) * | 2014-11-07 | 2015-02-25 | 国网上海市电力公司 | Automatic underground power line fault positioning and warning system |
| JP2017017543A (en) * | 2015-07-01 | 2017-01-19 | 日本電気株式会社 | Communication device, control method therefor, and program |
| US20170150418A1 (en) * | 2015-11-23 | 2017-05-25 | Electronics And Telecommunications Research Institute | Mobile ad-hoc routing apparatus and method |
| CN105451165A (en) * | 2015-12-01 | 2016-03-30 | 中国通信建设集团设计院有限公司 | Near field communication method and device based on multiple protocols |
| CN105744587A (en) * | 2016-01-27 | 2016-07-06 | 中国铁道科学研究院电子计算技术研究所 | Data transmission method and device for linear wireless sensor network |
| US20190098542A1 (en) * | 2016-05-11 | 2019-03-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Communication method, terminal device and network device |
| CN108023748A (en) * | 2016-11-03 | 2018-05-11 | 北京创昱科技有限公司 | A kind of micro-capacitance sensor communication control method, apparatus and system |
| CN106657269A (en) * | 2016-11-16 | 2017-05-10 | 西安诺瓦电子科技有限公司 | File transmission method |
| CN107529196A (en) * | 2017-08-24 | 2017-12-29 | 深圳市盛路物联通讯技术有限公司 | A kind of method and system of the data transmission of internet of things based on dummy node |
| CN107809782A (en) * | 2017-09-08 | 2018-03-16 | 深圳市盛路物联通讯技术有限公司 | Internet of things data transmission method and storage medium |
| CN108770031A (en) * | 2018-03-21 | 2018-11-06 | 深圳市海司恩科技有限公司 | Dynamic path planning method, active path planning system and storage medium |
| CN108521319A (en) * | 2018-04-09 | 2018-09-11 | 郑州琼佩电子技术有限公司 | A kind of buoy redundance communicating method based on high in the clouds storage |
| CN109327255A (en) * | 2018-09-26 | 2019-02-12 | 中国民航管理干部学院 | A kind of method for routing and system for unmanned plane ad hoc network |
| CN109743758A (en) * | 2018-12-28 | 2019-05-10 | 广东中兴新支点技术有限公司 | Multi link communications method, communication device and communication system |
| CN109922485A (en) * | 2019-02-02 | 2019-06-21 | 四川速宝网络科技有限公司 | Intelligent network bridge accelerated method and system based on dual communication devices |
| CN109787838A (en) * | 2019-02-25 | 2019-05-21 | 武汉晟联智融微电子科技有限公司 | Evade the method for failed trunk node in multihop network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111510321B (en) | 2023-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11128521B2 (en) | Group communication device bypass connectivity | |
| US9883323B2 (en) | Efficient routing for energy harvest and quality of service in wireless sensor networks | |
| KR102072148B1 (en) | System and method for handling link loss in a network | |
| CN111866162A (en) | Service distribution method and device | |
| Faragardi et al. | An efficient placement of sinks and SDN controller nodes for optimizing the design cost of industrial IoT systems | |
| Ranga et al. | A hybrid timer based single node failure recovery approach for WSANs | |
| EP3622670B1 (en) | Connectivity monitoring for data tunneling between network device and application server | |
| Palanikumar et al. | Effective failure nodes detection using matrix calculus algorithm in wireless sensor networks | |
| US9569319B2 (en) | Methods for improved server redundancy in dynamic networks | |
| CN111194064A (en) | Data transmission method and device, computer equipment and storage medium | |
| KR20090094307A (en) | Method and apparatus for determining a route metric | |
| CN111586799B (en) | Network residing method, system, electronic device, storage medium and communication terminal | |
| CN111510321B (en) | Network fault processing method, device, computer equipment and storage medium | |
| Du et al. | Application-oriented fault detection and recovery algorithm for wireless sensor and actor networks | |
| CN109981437B (en) | Multi-data center intercommunication method based on VPC and related equipment | |
| WO2022178675A1 (en) | Interconnection system, data transmission method, and chip | |
| EP1919166B1 (en) | Systems and methods for optimizing the topology of a Bluetooth scatternet for social networking | |
| CN114422581A (en) | Service creation method, service creation apparatus, computer device, and storage medium | |
| WO2009135981A1 (en) | Method, apparatus and computer program product for providing routing in a network | |
| US20170359416A1 (en) | Method and apparatus for information management | |
| US9532332B2 (en) | Node device for releasing allocation of the unused channel to the radio interface | |
| US20170163524A1 (en) | Multi-chassis lag access node determination system | |
| US11223557B1 (en) | Multicast traffic disruption prevention system | |
| CN115361284B (en) | Deployment adjustment method of virtual network function based on SDN | |
| US9529549B2 (en) | Data processing method for storing data and restoration information and data processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |