CN114554626A - Wireless sensor network networking method applied to data transmission of Internet of things - Google Patents
Wireless sensor network networking method applied to data transmission of Internet of things Download PDFInfo
- Publication number
- CN114554626A CN114554626A CN202210180950.1A CN202210180950A CN114554626A CN 114554626 A CN114554626 A CN 114554626A CN 202210180950 A CN202210180950 A CN 202210180950A CN 114554626 A CN114554626 A CN 114554626A
- Authority
- CN
- China
- Prior art keywords
- node
- network
- data
- nodes
- wireless sensor
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000006855 networking Effects 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 230000002457 bidirectional effect Effects 0.000 claims description 23
- 230000002776 aggregation Effects 0.000 claims description 6
- 238000004220 aggregation Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000003491 array Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/54—Organization of routing tables
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention belongs to the technical field of network networking, and discloses a wireless sensor network networking method applied to data transmission of the Internet of things, which is used for acquiring networking information of a wireless sensor network and connecting the networking information to the wireless network; grouping wireless sensor networks; the wireless sensor network is divided into grids, and a plurality of sensor nodes exist in each grid. The grouping method of the wireless sensor network drives the grouping of the wireless sensor network according to the state of the sensor, so that the grouping can be carried out according to the requirements of users, redundant keys do not need to be added on the sensor with limited space, a special input tool is not needed, and the method is simple, clear and easy to realize; meanwhile, the method for downloading the data of the wireless sensor network can overcome the defects of low data acquisition reliability and low data transmission efficiency in the prior art, so that the advantages of high data acquisition reliability and high data transmission efficiency are realized.
Description
Technical Field
The invention belongs to the technical field of network networking, and particularly relates to a wireless sensor network networking method applied to data transmission of the Internet of things.
Background
Networking technology is network building technology and is divided into ethernet networking technology and ATM local area network networking technology. The ethernet networking is very flexible and simple, can use a plurality of physical media, is a most widely applied network at home and abroad by using different topological structures, and has become the mainstream of network technology. The Ethernet is further divided into 10Mb/s, 100Mb/s, 1000Mb/s according to its transmission rate. The fine cable ethernet 10BASE-210BASE-2 ethernet uses the IEEE802.3 standard, which is a typical bus type structure. And a bus type network which adopts a thin cable as a transmission medium and is connected with a BNC interface on the network card through a T-shaped joint. However, the existing networking method of the wireless sensor network applied to data transmission of the internet of things cannot be grouped according to the needs of users, or needs a special input tool, or occupies the space of the sensor by using keys, and the keys are easily mistakenly touched; meanwhile, in a large-scale high-density wireless sensor network, the traditional downloading mode can reduce the reliability of data acquisition.
Through the above analysis, the problems and defects of the prior art are as follows: the existing networking method of the wireless sensor network applied to data transmission of the Internet of things cannot group according to the requirements of users, or needs a special input tool, or occupies the space of the sensor by using keys, and the keys are easily mistakenly touched; meanwhile, in a large-scale high-density wireless sensor network, the traditional downloading mode can reduce the reliability of data acquisition.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a wireless sensor network networking method applied to data transmission of the Internet of things.
The invention is realized in such a way that a networking method of a wireless sensor network applied to data transmission of the Internet of things comprises the following steps:
step one, acquiring networking information of a wireless sensor network; caching the networking information in a storage unit; reading the networking information from a storage unit, and connecting the networking information into the wireless network; grouping wireless sensor networks; the wireless sensor network is divided into grids, each grid is provided with a plurality of sensor nodes, and only one sensor node is used as a relay node in the same grid at any time in the data transmission process;
step two, the central node configures the geometric coordinates, the subnet ID, the central node coordinates and the ID thereof, the grid number in the vertical direction and the grid number in the horizontal direction of the network in a flooding broadcast mode;
step three, downloading wireless sensor network data, calculating the length L of the network in the horizontal direction and the length L of the network in the vertical direction according to network parameters after each relay node receiving configuration grouping broadcast data for the first time, recording the configuration information, and then continuing to relay and broadcast the configuration grouping broadcast data; the relay node which receives the configuration grouping broadcast data does not forward any more, and directly discards the configuration grouping broadcast data; at this time, if the sensing node receives the configuration packet broadcast data, the configuration information of the sensing node is adjusted according to the network parameters and then the configuration packet broadcast data is directly discarded;
step four, when a certain sensing node or relay node has data grouping information to be sent to the central node, the sensing node or relay node preliminarily selects the direction of grouping to be sent according to the relative position information between the sensing node or relay node and the central node, and lists all the alternative relay nodes;
and step five, the transmitting node estimates the link stability by utilizing the distance between the transmitting node and the center of each grid according to the relative position information between the transmitting node and the adjacent grid in the selected direction, and estimates the link stability information of all the alternative relay nodes in the direction by estimating the link stability information of the transmitting node and the relay nodes in the grids.
Further, the method for grouping the wireless sensor network is as follows:
(1) establishing a network topology with a bidirectional tree, merging all child node lists in the bidirectional tree by a gateway, and establishing a routing list which is used for traversing all tree nodes in the bidirectional tree and contains end-to-end routing information;
(2) based on the constructed routing list, the gateway sends a request containing end-to-end routing information to each tree node in sequence to initiate a data downloading request;
(3) the target node feeds back the data requested by the data downloading request to the gateway along a path opposite to the data downloading request in the bidirectional tree; and after the data requested by the data downloading request reaches the gateway along the target node, the gateway verifies the CRC data.
Further, the operation of constructing a routing list for traversing all tree nodes in the bidirectional tree and containing end-to-end routing information specifically includes:
1) the gateway inquires a child node list of the first layer child node; the gateway sends a polling request to the second-layer child nodes to obtain a list of the second-layer child nodes;
2) in this way, the gateway seeks a list of child nodes from the child nodes of the deeper hierarchy; the gateway traverses all the hierarchical child nodes to obtain a complete child node list and routing information.
Further, the operation of establishing the network topology with the bidirectional tree specifically includes:
adding a sensor node capable of carrying out data transmission into a preset network topology table, and calling the sensor node as a tree node; the sensor nodes which are not added into the network topology table are called non-tree nodes;
the gateway initializes the establishment process of the network topology by broadcasting the heartbeat messages of the tree nodes;
based on the initialization result of the network topology establishment process, after the non-tree nodes compete to join the network topology table, more sensor nodes are collected by sending out heartbeat messages of the non-tree nodes, and a required network topology structure is established.
Further, the method for downloading the wireless sensor network data comprises the following steps:
(1) after the data sink node is started up, the data sink node enters a grouping allowing state and sends grouping allowing information; the data sink node receives a request for joining a network covered by the data sink node, which is sent by each sensor in an ungrouped state;
(2) the data aggregation node returns a message allowing network access to each sensor requesting to join, and each sensor requesting to join stores the ID of the data aggregation node;
(3) and the data sink node configures a position ID matched with the monitoring position of the sensor for the ID of each sensor requesting to be added, stores the ID of each sensor requesting to be added, exits from the grouping allowing state and enters into the grouping forbidding state.
Further, the method for downloading the wireless sensor network data further comprises the following steps:
when the grouped sensors need to be regrouped, the data sink node sends information urging the sensors to exit the network to the sensors needing to exit the network, and the sensors are converted into an ungrouped state from a grouped state after receiving the information;
when the grouped sensors need to be regrouped, the sensors in the grouped state are converted into an ungrouped state through a regrouping key on the sensors;
if the sensors in the grouped state are offline and then online again, the sensors request to access a network covered by a data sink node, the data sink node receives the request of the sensors, acquires the ID of the sensors, and judges whether the ID of the sensors exists in the data sink node:
if yes, sending a message of allowing network access to the sensor, wherein the sensor is accessed to the network;
if not, the data sink node sends a message of refusing to access the network to the sensor, the sensor is converted into an ungrouped state after receiving the message, or the data sink node does not perform further processing, and the sensor is automatically converted into the ungrouped state after a certain time limit is exceeded.
Further, the method for configuring the geometric coordinates of the network by the center node in the second step in a flooding broadcast manner includes:
constructing a node coverage graph according to all the nodes, wherein the node coverage graph is used as the spatial distribution of the nodes on a logic space included by the peer-to-peer network;
building a topology tree in the node overlay having a plurality of levels, each level including one or more tree nodes associated with a respective node;
determining the geometric coordinates of the current node according to the positions of the tree nodes in the topological tree;
and sending the determined geometric coordinates to the corresponding nodes in a flooding broadcast mode.
Further, when the determined geometric coordinates are sent to corresponding nodes in a flooding broadcast mode, a root node dynamic election mechanism is adopted to select the node with the smallest ID number as a synchronous clock source, and a hierarchical network is established by flooding broadcast of hierarchical messages; and (3) flooding and broadcasting the grading message by a synchronous clock source, wherein the grade number of the child node is the grade number of the father node plus 1, and the child node is sequentially diffused layer by layer to finally complete the whole network grading.
Further, when a certain sensing node or relay node has data grouping information to be sent to the central node, the data sending method adopted in the fourth step comprises:
when the node has an ID address and does not have the IP address, the ID address is used for sending data;
when the node has the IP address, whether the central node has the IP address of the network is checked, if the central node has the IP address of the network, the data is sent by directly utilizing the IP address, otherwise, the data grouping information is sent to the superior node;
and the central node receives the data grouping information sent by the sensing node or the relay node.
Further, after the central node receives the data grouping information sent by the sensing node or the relay node, the central node configures the sub-nodes according to the collected data grouping information, and after the configuration is completed, each level of nodes in the wireless sensor network realize data transmission.
By combining all the technical schemes, the invention has the advantages and positive effects that: the grouping method of the wireless sensor network drives the grouping of the wireless sensor network according to the state of the sensor, so that the grouping can be carried out according to the requirements of users, redundant keys do not need to be added on the sensor with limited space, a special input tool is not needed, and the method is simple, clear and easy to realize; meanwhile, combining all child node lists in the bidirectional tree by using a gateway through a method for downloading the data of the wireless sensor network, and constructing a routing list which is used for traversing all tree nodes in the bidirectional tree and contains end-to-end routing information; based on the constructed routing list, the gateway sends a request containing end-to-end routing information to each tree node in sequence to initiate a data downloading request; the target node feeds back the data requested by the data downloading request to the gateway along a path opposite to the data downloading request in the bidirectional tree; data can be reliably collected along the path of the bidirectional tree; therefore, the defects of low data acquisition reliability and low data transmission efficiency in the prior art can be overcome, and the advantages of high data acquisition reliability and high data transmission efficiency are realized.
Drawings
Fig. 1 is a flowchart of a networking method of a wireless sensor network applied to data transmission of the internet of things according to an embodiment of the present invention.
Fig. 2 is a flowchart of a method for grouping wireless sensor networks according to an embodiment of the present invention.
Fig. 3 is a flowchart of an operation method provided by an embodiment of the present invention for constructing a routing list for traversing all tree nodes in a bidirectional tree and containing end-to-end routing information.
Fig. 4 is a flowchart of a method for downloading data from a wireless sensor network according to an embodiment of the present invention.
Fig. 5 is a flowchart of a method for configuring the geometric coordinates of the network by the central node in a flooding broadcast manner according to an embodiment of the present invention.
Fig. 6 is a flowchart of a data transmission method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The application of the principles of the present invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a wireless sensor network networking method applied to data transmission of the internet of things, which includes the following steps:
s101, acquiring networking information of a wireless sensor network; caching the networking information in a storage unit; reading the networking information from a storage unit, and connecting to the wireless network by using the networking information; grouping wireless sensor networks; the wireless sensor network is divided into grids, each grid is provided with a plurality of sensor nodes, and only one sensor node is used as a relay node in the same grid at any time in the data transmission process;
s102, the central node configures the geometric coordinates, the subnet IDs, the central node coordinates and the IDs thereof, the grid number in the vertical direction and the grid number in the horizontal direction of the network in a flooding broadcast mode;
s103, downloading wireless sensor network data, receiving each relay node configuring grouping broadcast data for the first time, calculating the length L of the network in the horizontal direction and the length L of the network in the vertical direction according to network parameters, recording configuration information, and then continuously relaying and broadcasting the configuring grouping broadcast data; the relay node which receives the configuration grouping broadcast data does not forward any more, and directly discards the configuration grouping broadcast data; at this time, if the sensing node receives the configuration packet broadcast data, the configuration information of the sensing node is adjusted according to the network parameters and then the configuration packet broadcast data is directly discarded;
s104, when a certain sensing node or relay node has data grouping information to be sent to the central node, the sensing node or relay node preliminarily selects the direction of grouping to be sent according to the relative position information between the sensing node or relay node and the central node, and lists all the alternative relay nodes;
and S105, the transmitting node estimates the link stability by using the distance between the transmitting node and the center of each grid according to the relative position information between the transmitting node and the adjacent grid in the selected direction, and estimates the link stability information of the transmitting node and the relay nodes in the grids so as to estimate the link stability information of all the candidate relay nodes in the direction.
As shown in fig. 2, the method for grouping wireless sensor networks provided by the present invention is as follows:
s201, establishing a network topology with a bidirectional tree, merging all child node lists in the bidirectional tree by a gateway, and establishing a routing list which is used for traversing all tree nodes in the bidirectional tree and contains end-to-end routing information;
s202, based on the constructed routing list, the gateway sends a request containing end-to-end routing information to each tree node in sequence to initiate a data downloading request;
s203, the target node feeds back the data requested by the data downloading request to the gateway along the path opposite to the data downloading request in the bidirectional tree; and after the data requested by the data downloading request reaches the gateway along the target node, the gateway verifies the CRC data.
As shown in fig. 3, the operation of constructing a routing list for traversing all tree nodes in a bidirectional tree and containing end-to-end routing information provided by the present invention specifically includes:
s301, the gateway inquires a child node list of the child nodes in the first layer; the gateway sends a polling request to the second-layer child nodes to obtain a list of the second-layer child nodes;
s302, the gateway seeks a child node list from child nodes of a deeper level in such a way; the gateway traverses all the hierarchical child nodes to obtain a complete child node list and routing information.
The operation of establishing a network topology with a bidirectional tree provided by the present invention specifically comprises:
adding a sensor node capable of carrying out data transmission into a preset network topology table, and calling the sensor node as a tree node; the sensor nodes which are not added into the network topology table are called non-tree nodes;
the gateway initializes the establishment process of the network topology by broadcasting the heartbeat messages of the tree nodes;
based on the initialization result of the network topology establishment process, after the non-tree nodes compete to join the network topology table, more sensor nodes are collected by sending out heartbeat messages of the non-tree nodes, and a required network topology structure is established.
As shown in fig. 4, the method for downloading data of a wireless sensor network provided by the present invention is as follows:
s401, after the data sink node is started, the data sink node enters a grouping allowing state and sends grouping allowing information; the data sink node receives a request for joining a network covered by the data sink node, which is sent by each sensor in an ungrouped state;
s402, the data aggregation node returns a message allowing network access to each sensor requesting to join, and each sensor requesting to join stores the ID of the data aggregation node;
s403, the data sink node configures a position ID matched with the monitoring position of the sensor for the ID of each sensor requesting to join, stores the ID of each sensor requesting to join, exits from the grouping allowing state, and enters into the grouping forbidding state.
The method provided by the invention further comprises the following steps:
when the grouped sensors need to be regrouped, the data sink node sends information urging the sensors to exit the network to the sensors needing to exit the network, and the sensors are converted into an ungrouped state from a grouped state after receiving the information;
when the grouped sensors need to be regrouped, the sensors in the grouped state are converted into an ungrouped state through a regrouping key on the sensors;
if the sensors in the grouped state are offline and then online again, the sensors request to access a network covered by a data sink node, the data sink node receives the request of the sensors, acquires the ID of the sensors, and judges whether the ID of the sensors exists in the data sink node:
if yes, sending a message of allowing network access to the sensor, wherein the sensor is accessed to the network;
if not, the data sink node sends a message of refusing to access the network to the sensor, the sensor is converted into an ungrouped state after receiving the message, or the data sink node does not perform further processing, and the sensor is automatically converted into the ungrouped state after a certain time limit is exceeded.
As shown in fig. 5, the method for configuring the geometric coordinates of the network by the central node in step S102 in the embodiment of the present invention in a flooding broadcast manner includes:
s501, constructing a node coverage graph according to all nodes, wherein the node coverage graph is used as the spatial distribution of nodes on a logic space included in a peer-to-peer network;
s502, constructing a topological tree with multiple levels in a node overlay graph, wherein each level comprises one or more tree nodes associated with respective nodes;
s503, determining the geometric coordinates of the current node according to the positions of the tree nodes in the topology tree;
s504, the determined geometric coordinates are sent to corresponding nodes in a flooding broadcast mode.
In the embodiment of the invention, when the determined geometric coordinate is sent to the corresponding node in a flooding broadcast mode, a node with the minimum ID number is selected as a synchronous clock source by adopting a root node dynamic election mechanism, and a hierarchical network is established by flooding and broadcasting hierarchical messages; and the synchronous clock source floods and broadcasts a grading message, the level number of the child node is the level number of the father node plus 1, and the child node is diffused layer by layer in sequence to finally complete the whole network grading.
As shown in fig. 6, in step S104 in this embodiment of the present invention, when a certain sensor node or relay node has data packet information to send to a central node, the data sending method adopted includes:
s601, when the node has an ID address and does not have the IP address, the ID address is used for sending data;
s602, when the node has the IP address, checking whether the central node has the IP address of the network, if so, directly sending data by using the IP address, otherwise, sending data grouping information to a superior node;
and S603, the central node receives the data grouping information sent by the sensing node or the relay node.
After the central node receives the data grouping information sent by the sensing node or the relay node, the central node configures the sub-nodes according to the collected data grouping information, and after the configuration is finished, all levels of nodes in the wireless sensor network realize data transmission.
It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided on a carrier medium such as a disk, CD-or DVD-ROM, programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier, for example. The apparatus and its modules of the present invention may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of hardware circuits and software, e.g., firmware.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.
Claims (10)
1. A networking method of a wireless sensor network applied to data transmission of the Internet of things is characterized by comprising the following steps:
step one, acquiring networking information of a wireless sensor network; caching the networking information in a storage unit; reading the networking information from a storage unit, and connecting to the wireless network by using the networking information; grouping wireless sensor networks; the wireless sensor network is divided into grids, each grid is provided with a plurality of sensor nodes, and only one sensor node is used as a relay node in the same grid at any time in the data transmission process;
step two, the central node configures the geometric coordinates, the subnet ID, the central node coordinates and the ID thereof, the grid number in the vertical direction and the grid number in the horizontal direction of the network in a flooding broadcast mode;
step three, downloading wireless sensor network data, calculating the length L of the network in the horizontal direction and the length L of the network in the vertical direction according to network parameters after each relay node receiving configuration grouping broadcast data for the first time, recording the configuration information, and then continuing to relay and broadcast the configuration grouping broadcast data; the relay node which receives the configuration grouping broadcast data does not forward any more, and directly discards the configuration grouping broadcast data; at this time, if the sensing node receives the configuration packet broadcast data, the configuration information of the sensing node is adjusted according to the network parameters and then the configuration packet broadcast data is directly discarded;
step four, when a certain sensing node or relay node has data grouping information to be sent to the central node, the sensing node or relay node preliminarily selects the direction of grouping to be sent according to the relative position information between the sensing node or relay node and the central node, and lists all the alternative relay nodes;
and step five, the transmitting node estimates the link stability by utilizing the distance between the transmitting node and the center of each grid according to the relative position information between the transmitting node and the grid adjacent to the selected direction, and estimates the link stability information of all the alternative relay nodes in the direction by estimating the link stability information of the transmitting node and the relay nodes in the grids.
2. The networking method for the wireless sensor network applied to data transmission of the internet of things of claim 1, wherein the grouping method for the wireless sensor network comprises the following steps:
(1) establishing a network topology with a bidirectional tree, merging all child node lists in the bidirectional tree by a gateway, and establishing a routing list which is used for traversing all tree nodes in the bidirectional tree and contains end-to-end routing information;
(2) based on the constructed routing list, the gateway sends a request containing end-to-end routing information to each tree node in sequence to initiate a data downloading request;
(3) the target node feeds back the data requested by the data downloading request to the gateway along a path opposite to the data downloading request in the bidirectional tree; and after the data requested by the data downloading request reaches the gateway along the target node, the gateway verifies the CRC data.
3. The networking method for the wireless sensor network applied to data transmission of the internet of things of claim 2, wherein the operation of constructing the routing list for traversing all the tree nodes in the bidirectional tree and containing the end-to-end routing information specifically comprises:
1) the gateway inquires a child node list of the child nodes in the first layer; the gateway sends a polling request to the second-layer child nodes to obtain a list of the second-layer child nodes;
2) in this way the gateway seeks a list of child nodes to child nodes of deeper levels; the gateway traverses all the hierarchical child nodes to obtain a complete child node list and routing information.
4. The networking method for the wireless sensor network applied to data transmission of the internet of things of claim 2, wherein the operation of establishing the network topology with the bidirectional tree specifically comprises:
adding a sensor node capable of carrying out data transmission into a preset network topology table, and calling the sensor node as a tree node; the sensor nodes which are not added into the network topology table are called non-tree nodes;
the gateway initializes the establishment process of the network topology by broadcasting the heartbeat messages of the tree nodes;
based on the initialization result of the network topology establishment process, after the non-tree nodes compete to join the network topology table, more sensor nodes are collected by sending out heartbeat messages of the non-tree nodes, and a required network topology structure is established.
5. The networking method for the wireless sensor network applied to data transmission of the internet of things of claim 1, wherein the method for downloading the wireless sensor network data comprises the following steps:
(1) after the data sink node is started up, the data sink node enters a grouping allowing state and sends grouping allowing information; the data sink node receives a request for joining a network covered by the data sink node, which is sent by each sensor in an ungrouped state;
(2) the data aggregation node returns a message allowing network access to each sensor requesting to join, and each sensor requesting to join stores the ID of the data aggregation node;
(3) and the data sink node configures a position ID matched with the monitoring position of the sensor for the ID of each sensor requesting to be added, stores the ID of each sensor requesting to be added, exits from the grouping allowing state and enters into the grouping forbidding state.
6. The networking method for the wireless sensor network applied to data transmission of the internet of things of claim 5, wherein the downloading the wireless sensor network data further comprises:
when the grouped sensors need to be regrouped, the data sink node sends information urging the sensors to exit the network to the sensors needing to exit the network, and the sensors are converted into an ungrouped state from a grouped state after receiving the information;
when the grouped sensors need to be regrouped, the sensors in the grouped state are converted into an ungrouped state through a regrouping key on the sensors;
if the sensors in the grouped state are offline and then online again, the sensors request to access a network covered by a data sink node, the data sink node receives the request of the sensors, acquires the ID of the sensors, and judges whether the ID of the sensors exists in the data sink node:
if yes, sending a message of allowing network access to the sensor, wherein the sensor is accessed to the network;
if not, the data sink node sends a message of refusing to access the network to the sensor, the sensor is converted into an ungrouped state after receiving the message, or the data sink node does not perform further processing, and the sensor is automatically converted into the ungrouped state after a certain time limit is exceeded.
7. The networking method of the wireless sensor network applied to data transmission of the internet of things of claim 1, wherein the method for configuring the geometric coordinates of the network by the center node in the second step in a flooding broadcast mode comprises the following steps:
constructing a node coverage graph according to all the nodes, wherein the node coverage graph is used as the spatial distribution of the nodes on a logic space included by the peer-to-peer network;
building a topology tree in the node overlay having a plurality of levels, each level including one or more tree nodes associated with a respective node;
determining the geometric coordinates of the current node according to the positions of the tree nodes in the topological tree;
and sending the determined geometric coordinates to the corresponding nodes in a flooding broadcast mode.
8. The networking method of the wireless sensor network applied to data transmission of the internet of things of claim 7, wherein when the determined geometric coordinates are sent to corresponding nodes in a flooding broadcast manner, a root node dynamic election mechanism is adopted to select the node with the smallest ID number as a synchronous clock source, and a hierarchical network is established by flooding broadcast hierarchical messages; and (3) flooding and broadcasting the grading message by a synchronous clock source, wherein the grade number of the child node is the grade number of the father node plus 1, and the child node is sequentially diffused layer by layer to finally complete the whole network grading.
9. The networking method of the wireless sensor network applied to data transmission of the internet of things of claim 1, wherein when a certain sensing node or relay node has data grouping information to be sent to a central node, the adopted data sending method comprises the following steps:
when the node has an ID address and does not have the IP address, the ID address is used for sending data;
when the node has the IP address, whether the central node has the IP address of the network is checked, if the central node has the IP address of the network, the data is sent by directly utilizing the IP address, otherwise, the data grouping information is sent to the superior node;
and the central node receives the data grouping information sent by the sensing node or the relay node.
10. The networking method of the wireless sensor network applied to data transmission of the internet of things of claim 9, wherein after the central node receives the data grouping information sent by the sensing node or the relay node, the central node configures the sub-nodes according to the collected data grouping information, and after the configuration is completed, the nodes at all levels in the wireless sensor network realize data transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180950.1A CN114554626A (en) | 2022-02-25 | 2022-02-25 | Wireless sensor network networking method applied to data transmission of Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210180950.1A CN114554626A (en) | 2022-02-25 | 2022-02-25 | Wireless sensor network networking method applied to data transmission of Internet of things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114554626A true CN114554626A (en) | 2022-05-27 |
Family
ID=81678887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210180950.1A Withdrawn CN114554626A (en) | 2022-02-25 | 2022-02-25 | Wireless sensor network networking method applied to data transmission of Internet of things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114554626A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115767465A (en) * | 2022-11-22 | 2023-03-07 | 上海亿为科技有限公司 | Environment acquisition system, method, device, equipment and product based on artificial intelligence |
| CN117098139A (en) * | 2023-10-18 | 2023-11-21 | 北京航天计量测试技术研究所 | High-reliability wireless communication network and path planning method thereof |
-
2022
- 2022-02-25 CN CN202210180950.1A patent/CN114554626A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115767465A (en) * | 2022-11-22 | 2023-03-07 | 上海亿为科技有限公司 | Environment acquisition system, method, device, equipment and product based on artificial intelligence |
| CN117098139A (en) * | 2023-10-18 | 2023-11-21 | 北京航天计量测试技术研究所 | High-reliability wireless communication network and path planning method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10674486B2 (en) | System, security and network management using self-organizing communication orbits in distributed networks | |
| Seada et al. | On the effect of localization errors on geographic face routing in sensor networks | |
| Fang et al. | Locating and bypassing holes in sensor networks | |
| CN114554626A (en) | Wireless sensor network networking method applied to data transmission of Internet of things | |
| Kim et al. | Minimum-energy asynchronous dissemination to mobile sinks in wireless sensor networks | |
| CN101495997B (en) | Techniques for one-way synchronization of routing information among intermediate nodes | |
| JP4517885B2 (en) | Network reconfiguration method, program, information recording medium, node, base station, multi-hop network system | |
| CN110809054A (en) | Data transmission method, device, equipment and storage medium | |
| CN102647312B (en) | A kind of detection method of whole net multicast topology and device | |
| Khalifa et al. | A distributed self-healing coverage hole detection and repair scheme for mobile wireless sensor networks | |
| CN113347059B (en) | In-band network telemetering optimal detection path planning method based on fixed probe position | |
| JP5078034B2 (en) | Communication device, P2P network construction method, program, and recording medium | |
| US20120163289A1 (en) | Node apparatus, node management apparatus and method, and communication system based on continuous network connectivity-lacking network | |
| Pimple et al. | Cut detection in wireless sensors network using distributed source separation detection (dssd) approach | |
| JP4507083B2 (en) | Information aggregation method for distributed network | |
| Cisco | Managing Ports | |
| Cisco | Managing Ports | |
| Cisco | Managing Ports | |
| Cisco | Managing Ports | |
| Cisco | Managing Ports | |
| Cisco | Managing Ports | |
| Cisco | Managing Ports | |
| Moazeni et al. | HEAP: A hierarchical energy aware protocol for routing and aggregation in sensor networks | |
| US20160314037A1 (en) | Reliable Map-Reduce Communications in a Decentralized, Self-Organizing Communication Orbit of a Distributed Network | |
| Soni et al. | Survey of quality of service routing protocol in MANET |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220527 |