CN115802294A - Method, system, equipment and medium for improving power failure information reporting rate of Wi-SUN network - Google Patents

Method, system, equipment and medium for improving power failure information reporting rate of Wi-SUN network Download PDF

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CN115802294A
CN115802294A CN202211326532.5A CN202211326532A CN115802294A CN 115802294 A CN115802294 A CN 115802294A CN 202211326532 A CN202211326532 A CN 202211326532A CN 115802294 A CN115802294 A CN 115802294A
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node
power failure
nodes
failure information
class
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CN115802294B (en
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戴翚
郭建波
余官定
王天琦
王刚
康克华
李材辉
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Hangzhou Renhe Information Technology Co ltd
Hangzhou Hexing Electrical Co Ltd
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Hangzhou Renhe Information Technology Co ltd
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Priority to PCT/CN2023/075578 priority patent/WO2024087414A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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
    • 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

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  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method, a system, equipment and a medium for improving the reporting rate of power failure information by a Wi-SUN network, which comprises the following steps: the method comprises the steps that the nodes are divided into a first class node and a second class node according to different types of the nodes, the first class node transmits power failure information in a unicast mode, and the second class node transmits the power failure information in a broadcast mode; the first-class nodes are subjected to hierarchy division according to the hierarchy to which the nodes belong, and the first-class nodes at least one level away from the hierarchy transmit power failure information in the same time slot; transmitting power failure information by first-class nodes adjacent to the hierarchy in different time slots; the power failure information transmitted by the first type nodes at the same level in the same time slot is converged to the first type nodes at the same father level; and the boundary router acquires the power failure information transmitted by the first class node and the second class node and reports the power failure information to the management system. The invention can fully utilize the time slot resource of the Wi-SUN network, accelerate the power failure information reporting efficiency of the whole network, and effectively reduce the data transmission quantity, thereby improving the reporting rate of the power failure information of each node of the Wi-SUN network.

Description

Method, system, equipment and medium for improving power failure information reporting rate of Wi-SUN network
Technical Field
The invention relates to the technical field of Wi-SUN communication, in particular to a method, a system, equipment and a medium for improving the reporting rate of power failure information of a Wi-SUN network.
Background
Wi-SUN is a networking technology defined from a physical layer to a transmission layer, and is continuously and widely applied to various fields in recent years based on advanced networking and self-repairing technology and a strong security encryption mechanism. For example: electricity meter, photovoltaic energy, smart cities, and the like.
In many Wi-SUN technical applications, in many scenarios, a device is required to have a power failure reporting function, and the explanation is as follows: when the external power supply of the equipment fails and loses power, continuous power supply needs to be realized through an additional circuit, and the task of reporting current data and power failure events to the background control center is completed. In the existing Wi-SUN communication scheme, the multi-requirement equipment is provided with an energy storage capacitor, and Lastgasp information of the equipment can be actively reported to a system when the equipment is powered off so as to facilitate the system to perform subsequent related processing, wherein the Lastgasp information refers to power-off information.
In the existing Wi-SUN communication scheme, as Wi-SUN supports the ip communication capability, and each node of the Wi-SUN network has a unique ip address of the whole network, each node has the capability of directly communicating to a management system, and the Lastgasp information reporting is mostly carried out in a mode that the node directly sends the Lastgasp information to the management system. However, such an approach has the following drawbacks: 1. the Wi-SUN scheme is a Mesh network, any node transmits data to a management system, a transmission path of the Wi-SUN scheme is in the Wi-SUN network, the Wi-SUN scheme is started by the Wi-SUN scheme and respectively transmitted to a father node of the Wi-SUN network, the father node of the Wi-SUN scheme is transmitted to the father node of the father node, and the transmission path is analogized until the transmission path is transmitted to a Boundary Router (BR) of the Wi-SUN network, the boundary Router is transmitted to a gateway by the BR, and finally the management system is reached, so that the transmission mode is that any node transmits Lastgasp information and needs to be transmitted through a finished link, if all nodes of the whole network are powered off at the same time, lastgasp information needs to be sent, the actual network transmission data volume is large, the network is crowded, collision is increased, and the transmission success rate is not high; 2. under the condition that the Wi-SUN equipment is powered off, the capacitance of the Wi-SUN equipment can support certain sending times, if a plurality of nodes are hung under certain nodes (assuming that N nodes can reach BR only by being forwarded by the nodes), the capacitance of the key node is very easy to be exhausted, and finally the success rate of lastgasp transmission in the whole network is not high.
Disclosure of Invention
In order to solve the problems, the technical scheme provided by the invention is as follows:
a method for improving the reporting rate of power failure information of a Wi-SUN network comprises the following steps:
the method comprises the steps that the nodes are divided into a first class node and a second class node according to different types of the nodes, power failure information is transmitted to the first class node in a unicast mode, and the power failure information is transmitted to the second class node in a broadcast mode;
carrying out hierarchy division on the first class nodes according to the hierarchy to which the nodes belong, wherein the first class nodes at least one stage away from the hierarchy transmit power failure information in the same time slot; the first type nodes adjacent to the hierarchy transmit power failure information in different time slots;
the power failure information transmitted by the first type nodes at the same level in the same time slot is converged to the first type nodes at the same father level;
and the boundary router acquires the power failure information transmitted by the first class node and the second class node and reports the power failure information to a management system.
The invention is further set that the first class node and the second class node both generate a bitmap table containing power failure information, and each bit in the bitmap table corresponds to one node in the Wi-SUN network; when the first class node or the second class node is in power failure, the corresponding bit position in the bitmap table is 1; and when the first class node or the second class node is not powered down, the corresponding bit position in the bitmap table is 0.
The invention is further arranged to divide the first class nodes into levels 1-R according to the level to which the node belongs, and transmit power failure information in the same time slot according to the first class nodes at least separated by level A, wherein R is more than A;
selecting different time slots according to the level of the first type of node; the transmission time slot of the first type node is
T = T _ EachLeveltime × (Level% a) + Random ()% T _ EachLeveltime; the T _ EachLeveltime is a time period allowed to be reported by each Level, the Level is the Level of the first class of nodes, and the Random () is a Random function;
when the first class node is in a time period allowing reporting, the first class node transmits power failure information to the first class node of a parent of the first class node, the first class node of the parent updates the power failure information into a bitmap table of the node, and the first class node of the parent sends an acknowledgement signal ACK to the first class node transmitting the power failure information, which indicates that the transmitted power failure information is received, and the first class node receiving the acknowledgement signal ACK does not transmit the power failure information any more; the power failure information transmitted by the first type nodes at the same level in the reporting allowed time period is converged to the first type nodes at the same parent level;
and the like until all the first type nodes transmit the power-off information to the boundary router.
The invention is further set that the value of A is 2, namely the first-class nodes are divided into the first-class nodes with even-numbered levels and the first-class nodes with odd-numbered levels;
in a first time slot, the first type nodes with even levels transmit own power failure information to the first type nodes of a parent level;
in a second time slot, the first type nodes with odd levels transmit own power failure information to the first type nodes of the parent level;
and in a third time slot, all the first type nodes which are not reported successfully in the first time slot or the second time slot transmit power-down information to the first type nodes of a parent level.
The invention further sets the second type node to transmit the power failure information to the surrounding first type node, second type node and boundary router by adopting a broadcasting mode, which comprises the following steps:
the second type node reports power-off information to the boundary router;
the second class node transmits power-off information to surrounding second class nodes, the second class nodes which receive the power-off information of other second class nodes update the power-off information into a bitmap table of the node per se and report the power-off information of the node per se to the boundary router;
the second class nodes transmit the power failure information to the surrounding first class nodes, the first class nodes which receive the power failure information of other second class nodes update the power failure information to a bitmap table of the nodes, and the power failure information of the nodes is reported to the boundary router in a specific time slot.
The invention is further set to stop the transmission of the power failure information of the node if the second type node transmitting the power failure information receives the power failure information broadcast by other second type nodes and contains the own offline information.
The invention is further set that the first class node is a first-level node and is provided with a node of a child node or a node which is not a first-level node; the second type node is a node with a first level node and no child node.
A system for increasing the reporting rate of power failure information of a Wi-SUN network is characterized in that the method for increasing the reporting rate of the power failure information of the Wi-SUN network according to any one of claims 1 to 7 is adopted, and comprises the following steps:
the first type nodes are subjected to hierarchical division according to the hierarchy to which the nodes belong, the first type nodes at least one level of which is separated from the hierarchy transmit power failure information in the same time slot, and the power failure information is transmitted to the first type nodes of a parent level in a specified time slot in a unicast mode; the first-class nodes of the parent level gather the power failure information of the subordinate first-class nodes in a specified time slot;
the second type of nodes adopt a broadcasting mode to transmit power failure information to the first type of nodes, the second type of nodes and the boundary router in a specified time slot;
the boundary router receives the power failure information of the first class node and the second class node which are first class nodes;
and the management system receives the power failure information of all the nodes converged by the boundary router.
An electronic device includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor is enabled to execute the method for increasing the reporting rate of power failure information in a Wi-SUN network.
A storage medium, where computer program instructions are stored, and when the computer program instructions are executed by a processor, the method for improving the report rate of the power failure information in the Wi-SUN network is implemented.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention classifies different types of nodes in the Wi-SUN network, the first type of nodes adopt unicast time slots, the second type of nodes adopt broadcast time slots, and the time slot resources of the Wi-SUN network are fully utilized; by utilizing the characteristic that cross-level transmission of the Wi-SUN network does not influence each other, cross-level first-class nodes upload power failure information in the same unicast time slot, and the overall power failure information reporting efficiency of the Wi-SUN network is improved; on the basis, the power failure information is converged by utilizing the first class node of the parent level, so that the overall data transmission quantity of the Wi-SUN network is effectively reduced, and the reporting rate of the power failure information of each node of the Wi-SUN network is greatly improved.
Drawings
Fig. 1 is a schematic diagram illustrating power failure information aggregation of a first type node in a Wi-SUN network according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating power failure information aggregation of a first type node in a Wi-SUN network according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating transmission of power failure information in a broadcast mode and a unicast mode in a Wi-SUN network according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of power failure information transmitted by a first-class node in a Wi-SUN network in a cross-class manner according to an embodiment of the present invention.
FIG. 5 is a bitmap representation diagram according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of an electronic device according to an embodiment of the invention.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
With reference to fig. 1 to 4, the technical solution of the present invention is a method for increasing a power failure information reporting rate in a Wi-SUN network, including:
the method comprises the steps that the nodes are divided into a first class node and a second class node according to different types of the nodes, power failure information is transmitted to the first class node in a unicast mode, and the power failure information is transmitted to the second class node in a broadcast mode;
carrying out hierarchy division on the first class nodes according to the hierarchy to which the nodes belong, wherein the first class nodes at least one stage away from the hierarchy transmit power failure information in the same time slot; the first type nodes adjacent to the hierarchy transmit power failure information in different time slots;
the power failure information transmitted by the first type nodes at the same level in the same time slot is converged to the first type nodes at the same father level;
and the boundary router acquires the power failure information transmitted by the first class node and the second class node and reports the power failure information to a management system.
It should be noted that, in other embodiments, the steps of the corresponding methods are not necessarily performed in the order shown and described in the present specification. In some other embodiments, the method may include more or fewer steps than those described herein. Moreover, a single step described in this specification may be broken down into multiple steps in other embodiments; multiple steps described in this specification may be combined into a single step in other embodiments.
In fig. 2 to 4, the NODEs of the first type are denoted by prefixes NODEs, and suffix numbers of the NODEs of the first type represent sequence numbers of the NODEs of the first type; the second type NODE is represented by a prefix Leaf NODE, and the suffix number of the second type NODE represents the sequence number of the second type NODE.
In the above embodiment, the first type node is a level one node and has a node of a child node or a node that is not a level one node; the second type node is a node with a first level node and no child node. As shown in fig. 3, NODE1, NODE2, NODE3, NODE4, NODE, etc. represent different first type NODEs; NODEs Leaf NODE1, leaf NODE2 and Leaf NODE represent different second class NODEs.
In the above embodiment, the unicast mode is: the node can only transmit the power failure information to the previous node, and can also obtain an ACK (acknowledgement character) signal returned by the previous node after the power failure information is transmitted, and the same power failure information does not need to be transmitted again after the ACK signal is received; the broadcasting mode is as follows: the node transmits the power failure information to the boundary router or other surrounding nodes.
In fig. 2 to 4, the hierarchy of the first type of node is determined by the position of the node itself on the link of the Wi-SUN network. For example, in fig. 2, NODE1 and NODE2 are first-type NODEs of a first hierarchy; NODE3, NODE4 and NODE5 are first type NODEs of a second hierarchy; NODE6, NODE7 and NODE are first type NODEs of the third hierarchy.
In this embodiment, the first class node and the second class node both generate a bitmap table containing power failure information, and each bit in the bitmap table corresponds to a node in the Wi-SUN network; when the first class node or the second class node is in power failure, the corresponding bit position in the bitmap table is 1; and when the first class node or the second class node is not powered down, the corresponding bit position in the bitmap table is 0.
As shown in fig. 5, the bitmap table includes N bytes, each Byte includes 8 bits, and the following node device information is represented, for example: byte1 bit0 represents node equipment information with IP of 0; byte1 bit7 represents node equipment information with an IP of 7; the ByteNbit 0 represents the node equipment information with the IP of (N-1) multiplied by 8; the ByteNbit 7 represents node device information having an IP of (N-1). Times. 8+7. The "1" and "0" on each bit represent the power down state and the power down non-state of the node, respectively.
In the embodiment, the first class nodes are divided into levels 1-R according to the level to which the node belongs, and the power failure information is transmitted in the same time slot by the first class nodes at least at the level A, wherein R is more than A;
selecting different time slots according to the level of the first type of node; the transmission time slot of the first type node is
T = T _ EachLeveltime × (Level% a) + Random ()% T _ EachLeveltime; the T _ EachLeveltime is a time period allowed to be reported by each Level, the Level is the Level of the first class of nodes, and the Random () is a Random function;
when the first class node is in a time period allowing reporting, the first class node transmits power failure information to the first class node of a parent of the first class node, the first class node of the parent updates the power failure information into a bitmap table of the node, and the first class node of the parent sends an acknowledgement signal ACK to the first class node transmitting the power failure information, which indicates that the transmitted power failure information is received, and the first class node receiving the acknowledgement signal ACK does not transmit the power failure information any more; the power failure information transmitted by the first type nodes at the same level in the reporting allowed time period is converged to the first type nodes at the same parent level;
and the like until all the first type nodes transmit the power-off information to the boundary router.
In the above embodiment, for example, the first type of node in a certain Wi-SUN network includes 1 to 6 hierarchies, and performs drop information synchronous transmission in a manner of 3 hierarchies: in a first unicast time slot, a first type node at a 3 rd level transmits a power-down signal to the first type node at the 3 rd level, and a first type node at a 6 th level transmits a power-down signal to a first type node at a 5 th level; in a second unicast time slot, transmitting a power-down signal to a first type node of a 1 st level by a first type node of a 2 nd level, and transmitting a power-down signal to a first type node of a 4 th level by a first type node of a 5 th level; in a third unicast time slot, transmitting a power-down signal to a boundary router by a first class node at a 1 st level, and transmitting a power-down signal to a first class node at a 3 rd level by a first class node at a 4 th level; and the like until all the first type nodes transmit the power-off information to the boundary router.
In this embodiment, the value a is 2, that is, the first-class nodes are divided into the first-class nodes with even number of levels and the first-class nodes with odd number of levels; as shown in the attached figure 4 of the drawings,
in the first time slot T 0 ～T 1 The first type nodes with even levels transmit power failure information to the first type nodes of the parent level;
in the second time slot T 1 ～T 2 The first type nodes with odd levels transmit power failure information to the first type nodes of a parent level;
in the third time slot T 2 ～T 3 All not in the first time slot or the second time slotAnd the first type nodes which report successfully in the time slot transmit the power failure information to the first type nodes of the parent level.
In the above embodiment, the time that the energy storage capacitor of the first type node in the Wi-SUN network can support is T z Then there is T 3 ＜T z 。
In the embodiment, the interval cross-level synchronous transmission of the power failure signals maximally utilizes the characteristic that cross-level transmission of the Wi-SUN network does not influence each other, and cross-level first-class nodes upload power failure information in the same unicast time slot, so that the overall power failure information reporting efficiency of the Wi-SUN network is improved; and the actual Wi-SUN network hierarchy is not set too much, therefore, for some nodes of the first class which are caused by other network factors and cannot report in the corresponding first time slot or second time slot, in the third time slot, the power failure information is transmitted in a free reporting mode.
In this embodiment, the transmitting, by the second type node, the power down information to the first type node, the second type node, and the border router in the periphery by using a broadcast method includes:
the second type node reports power-off information to the boundary router;
the second class node transmits power-off information to surrounding second class nodes, the second class nodes which receive the power-off information of other second class nodes update the power-off information into a bitmap table of the node per se and report the power-off information of the node per se to the boundary router;
the second class nodes transmit the power failure information to the surrounding first class nodes, the first class nodes which receive the power failure information of other second class nodes update the power failure information to a bitmap table of the nodes, and the power failure information of the nodes is reported to the boundary router in a specific time slot.
In the above embodiment, the second type node transmits the power-down information in a broadcast manner, so that the power-down information can be transmitted in a longer time period, for example, the time period is T d ～T u Storage capacitor of the second type node in Wi-SUN networkThe supportable time is T z Then there is T u ＜T z 。
In the above embodiment, the broadcast mode for the second class nodes adopts a multi-path transmission path, which includes transmitting power-down information to other second class nodes and first class nodes of a first level hierarchy; certainly, after receiving the power-down information of the second type node, the first type node is also constrained by the specified unicast time slot and delays to send. The power failure information of the second type of nodes is processed in a redundant mode by adopting a multi-path transmission mode so as to ensure that the border router can receive the power failure information of all the nodes as much as possible.
In this embodiment, if the second type node transmitting the power failure information receives the power failure information broadcast by other second type nodes and contains the own offline information, the transmission of the power failure information of the node itself is stopped; the overall data transmission quantity of the Wi-SUN network can be effectively reduced.
The method for improving the power failure information reporting rate of the Wi-SUN network has the advantages that multiple mechanisms are parallel, time slot resources of the Wi-SUN network can be fully utilized, the overall power failure information reporting efficiency of the Wi-SUN network is improved, the overall data transmission quantity of the Wi-SUN network is effectively reduced, and therefore the power failure information reporting rate of each node of the Wi-SUN network is greatly improved.
Example 2
With reference to fig. 2 to 4, a technical solution of the present invention is a system for increasing a reporting rate of power failure information by a Wi-SUN network, where the method for increasing a reporting rate of power failure information by a Wi-SUN network according to embodiment 1 is used, and includes:
the first type nodes are subjected to hierarchical division according to the hierarchy to which the nodes belong, the first type nodes at least one level of which is separated from the hierarchy transmit power failure information in the same time slot, and the power failure information is transmitted to the first type nodes of a parent level in a specified time slot in a unicast mode; the first-class nodes of the parent level gather the power failure information of the subordinate first-class nodes in a specified time slot;
the second type of nodes adopt a broadcasting mode to transmit power failure information to the first type of nodes, the second type of nodes and the boundary router in a specified time slot;
the boundary router receives the power failure information of the first class node and the second class node which are first-class nodes;
and the management system receives the power failure information of all the nodes converged by the boundary router.
In the above embodiments, as shown in fig. 2 to 4, the NODE1, the NODE2, the NODE3, the NODE4, the NODE, and the like represent different first-type NODEs; NODEs Leaf NODE1, leaf NODE2 and Leaf NODE represent different second class NODEs. The NODE NODE1 and the NODE NODE2 are first-class NODEs of a first hierarchy; the NODE NODE3, the NODE NODE4 and the NODE NODE5 are first-class NODEs of a second hierarchy; NODE6, NODE7 and NODE are the first type NODEs of the third hierarchy.
In the above embodiments, the border router is the BR in the figure.
Example 3
With reference to fig. 6, the technical solution of the present invention is an electronic device, where the electronic device includes a memory and a processor, and the memory stores a computer program, and when the computer program is executed by the processor, the processor is enabled to execute the method for increasing the reporting rate of the power failure information of the Wi-SUN network according to embodiment 1.
Example 4
A storage medium, where computer program instructions are stored, and when the computer program instructions are executed by a processor, the method for increasing the reporting rate of the power failure information of the Wi-SUN network according to embodiment 1 is implemented.
The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, without departing from the spirit of the present invention, a person of ordinary skill in the art should understand that the present invention shall not be limited to the embodiments and the similar structural modes without creative design.

Claims (10)

1. A method for improving the reporting rate of power failure information by a Wi-SUN network is characterized by comprising the following steps:
the method comprises the steps that the nodes are divided into a first class node and a second class node according to different types of the nodes, power failure information is transmitted to the first class node in a unicast mode, and the power failure information is transmitted to the second class node in a broadcast mode;
carrying out hierarchy division on the first class nodes according to the hierarchy to which the nodes belong, wherein the first class nodes at least one stage away from the hierarchy transmit power failure information in the same time slot; the first type nodes adjacent to the hierarchy transmit power failure information in different time slots;
the power failure information transmitted by the first type nodes at the same level in the same time slot is converged to the first type nodes at the same father level;
and the boundary router acquires the power failure information transmitted by the first class node and the second class node and reports the power failure information to a management system.
2. The method for increasing the reporting rate of the power failure information of the Wi-SUN network according to claim 1, wherein the first class node and the second class node both generate a bitmap table containing the power failure information, and each bit in the bitmap table corresponds to a node in the Wi-SUN network; when the first class node or the second class node is in power failure, the corresponding bit position in the bitmap table is 1; and when the first class node or the second class node is not powered down, the corresponding bit position in the bitmap table is 0.
3. The method for increasing the reporting rate of the power failure information of the Wi-SUN network as claimed in claim 2, wherein the first class nodes are divided into levels 1-R according to the level to which the node belongs, and the power failure information is transmitted in the same time slot by the first class nodes at least a level A apart, wherein R > A;
selecting different time slots according to the level of the first type of node; the transmission time slot of the first type node is
T = T _ EachLeveltime × (Level% a) + Random ()% T _ EachLeveltime; the T _ EachLeveltime is a time period allowed to be reported by each Level, the Level is the Level of the first class of nodes, and the Random () is a Random function;
when the first class node is in a time period allowing reporting, the first class node transmits power failure information to the first class node of a parent of the first class node, the first class node of the parent updates the power failure information into a bitmap table of the node, and the first class node of the parent sends an acknowledgement signal ACK to the first class node transmitting the power failure information, which indicates that the transmitted power failure information is received, and the first class node receiving the acknowledgement signal ACK does not transmit the power failure information any more; the power failure information transmitted by the first type nodes at the same level in the reporting allowed time period is converged to the first type nodes at the same parent level;
and the like until all the first type nodes transmit the power-off information to the boundary router.
4. The method for increasing the report rate of the power failure information of the Wi-SUN network according to claim 3, wherein the value A is 2, that is, the first type nodes are divided into the first type nodes with even number of layers and the first type nodes with odd number of layers;
in a first time slot, the first type nodes with even levels transmit own power failure information to the first type nodes of a parent level;
in a second time slot, the first type nodes with odd levels transmit own power failure information to the first type nodes of the parent level;
and in a third time slot, all the first type nodes which are not reported successfully in the first time slot or the second time slot transmit power-down information to the first type nodes of a parent level.
5. The method for increasing the reporting rate of the power-down information of the Wi-SUN network according to claim 2, wherein the second type of node transmits the power-down information to the surrounding first type of node, second type of node and border router in a broadcast manner, and the method comprises:
the second type node reports power-off information to the boundary router;
the second class node transmits power-off information to surrounding second class nodes, the second class nodes which receive the power-off information of other second class nodes update the power-off information into a bitmap table of the node per se and report the power-off information of the node per se to the boundary router;
the second class nodes transmit the power failure information to the surrounding first class nodes, the first class nodes which receive the power failure information of other second class nodes update the power failure information to a bitmap table of the nodes, and the power failure information of the nodes is reported to the boundary router in a specific time slot.
6. The method for improving the reporting rate of the power failure information of the Wi-SUN network as claimed in claim 5, wherein if the second type node transmitting the power failure information receives the power failure information broadcast by other second type nodes and contains own offline information, the transmission of the power failure information of the node itself is stopped.
7. The method for improving the report rate of the power failure information of the Wi-SUN network according to any one of claims 1 to 6, wherein the first class node is a primary node and is a node with a child node or a node which is not a primary node; the second type node is a node with a first level node and no child node.
8. A system for improving the report rate of the power failure information of the Wi-SUN network is characterized in that the method for improving the report rate of the power failure information of the Wi-SUN network according to any one of claims 1 to 7 is adopted, and comprises the following steps:
the first class nodes are hierarchically divided according to the hierarchy to which the nodes belong, the first class nodes at least one level away from the hierarchy transmit the power failure information in the same time slot, and the power failure information is transmitted to the first class nodes of a parent level in a specified time slot in a unicast mode; the first-class nodes of the parent level gather the power failure information of the subordinate first-class nodes in a specified time slot;
the second type of node transmits the power failure information to the first type of node, the second type of node and the boundary router in a specified time slot by adopting a broadcasting mode;
the boundary router receives the power failure information of the first class node and the second class node which are first class nodes;
and the management system receives the power failure information of all the nodes converged by the boundary router.
9. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer program, when executed by the processor, causes the processor to perform the method for increasing reporting rate of power down information of Wi-SUN network as claimed in any one of claims 1 to 7.
10. A storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method for increasing reporting rate of power down information of a Wi-SUN network according to any one of claims 1 to 7.
CN202211326532.5A 2022-10-27 2022-10-27 Method, system, equipment and medium for improving power-down information reporting rate of Wi-SUN (wireless subscriber identity network) Active CN115802294B (en)

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