CN115802294B - Method, system, equipment and medium for improving power-down information reporting rate of Wi-SUN (wireless subscriber identity network) - Google Patents

Method, system, equipment and medium for improving power-down information reporting rate of Wi-SUN (wireless subscriber identity network) Download PDF

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Publication number
CN115802294B
CN115802294B CN202211326532.5A CN202211326532A CN115802294B CN 115802294 B CN115802294 B CN 115802294B CN 202211326532 A CN202211326532 A CN 202211326532A CN 115802294 B CN115802294 B CN 115802294B
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node
power
class
down information
nodes
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CN115802294A (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
Hangzhou Hexing Electrical 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method, a system, equipment and a medium for improving the reporting rate of power-down information of a Wi-SUN network, comprising the following steps: dividing the nodes into a first type node and a second type node according to different types of the nodes, wherein the first type node transmits power-down information in a unicast mode, and the second type node transmits the power-down information in a broadcast mode; according to the hierarchy to which the nodes belong, performing hierarchy division on the first class nodes, and transmitting power-down information by the first class nodes with at least one level apart in the hierarchy in the same time slot; the first class nodes adjacent to the hierarchy transmit power-down information in different time slots; the power-off information transmitted by the first class nodes of the hierarchical level in the same time slot is converged to the first class nodes of the same father level; the boundary router acquires power-down information transmitted by the first type node and the second type node and reports the power-down information to the management system. The invention can fully utilize the time slot resources of the Wi-SUN network, quicken the reporting efficiency of the power failure information of the whole network, effectively reduce the data transmission quantity, and further improve 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-down information reporting rate of Wi-SUN (wireless subscriber identity 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 from physical layer definition to transport layer, and in recent years, wi-SUN is widely applied in various fields continuously based on advanced networking and self-repairing technologies and a powerful security encryption mechanism. For example: electricity meters, photovoltaic energy sources, smart cities, and the like.
In many Wi-SUN technology applications, the device is required to have a power-down reporting function in many scenarios, which is explained as follows: when the external power supply of the equipment fails and fails, continuous power supply is needed to be realized through an additional circuit, and the reporting task of the current data and the power failure event to the background control center is completed. In the current Wi-SUN communication scheme, the multi-requirement device is provided with an energy storage capacitor, and when the device is powered down, lastgasp information of the device can be actively reported to the system so that the system can perform subsequent related processing, and the Lastgasp information refers to the power-down information.
In the existing Wi-SUN communication scheme, because Wi-SUN supports ip communication capability, nodes of each Wi-SUN network have unique ip addresses of the whole network, so that each node has the capability of directly communicating to a management system, and Lastgasp information reporting is performed in a manner that the node directly sends own Lastgasp information to the management system. But this approach has the following drawbacks: 1. because the Wi-SUN scheme networking is a Mesh network, any node needs to transmit data to a management system, the transmission path of the network is started by the node in the Wi-SUN network and is respectively transmitted to the father node of the father node, the father node of the network is transmitted to the father node of the father node, and so on until the network is transmitted to a Boundary Router (BR) of the Wi-SUN network, the network is transmitted to a gateway by the BR, and finally the network reaches the management system, and in the mode, any node transmits Lastgasp information and all nodes need to be transmitted through completed links, if all nodes of the whole network are powered down simultaneously, lastgasp information needs to be transmitted, the actual network transmission data amount is large, the network is crowded, the collision is increased, and the transmission success rate is not high; 2. when Wi-SUN equipment is powered down, under the condition that the number of times of transmission that a capacitor can support is certain, if nodes are hung under certain nodes in a traditional mode (N nodes are assumed to be forwarded by the nodes to reach BR), the capacitor electricity consumption of the key node is very easy to be caused, and finally the success rate of the whole-network lastgasp transmission 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-down information by a Wi-SUN network comprises the following steps:
dividing the nodes into a first type node and a second type node according to different types of the nodes, transmitting power-down information by adopting a unicast mode for the first type node, and transmitting power-down information by adopting a broadcast mode for the second type node;
performing hierarchical division on the first class nodes according to the hierarchy to which the nodes belong, wherein the first class nodes with at least one level of hierarchical intervals transmit power-down information in the same time slot; the first class nodes adjacent to the hierarchy transmit power-down information in different time slots;
the power-off information transmitted by the first class nodes of the same hierarchy level in the same time slot is converged on the first class nodes of the same father hierarchy level;
and the boundary router acquires the power-down information transmitted by the first type node and the second type node and reports the power-down information to the management system.
The invention is further arranged that the first type node and the second type node generate bitmap tables containing power-down information, and each bit in the bitmap tables corresponds to one node in a Wi-SUN network respectively; the first type node or the second type node is dropped when in electricity, the corresponding bit position in the bitmap table is 1; and when the first type node or the second type 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 levels to which the nodes belong, and to transmit power-down information in the same time slot according to the first class nodes separated by at least level A, wherein R is more than A;
selecting different time slots according to the hierarchy of the first class node; the transmission time slot of the first type node is
T=t_easchlevatmex (Level% a) +random ()% t_easchlevatme; wherein t_eashlyqme is a time period in which each Level allows reporting, level is a Level to which a first class node belongs, and Random () is a Random function;
when the first class node is in a time period allowing reporting, the first class node transmits power-down information to the first class node of a father stage of the first class node, the first class node of the father stage updates the power-down information to a bitmap table of a self node, the first class node of the father stage sends an acknowledgement signal ACK to the first class node transmitting the power-down information, the first class node receiving the acknowledgement signal ACK does not transmit the power-down information any more; the power-off information transmitted by the first class nodes of the same level in the time period of reporting permission is converged on the first class nodes of the same father level;
and the like until all the first type nodes transmit power-down information to the boundary router.
The invention is further set to the value of A as 2, namely the first type nodes are divided into the first type nodes with even levels and the first type nodes with odd levels;
in a first time slot, the first class nodes with even levels transmit own power-down information to the first class nodes of the father level;
in the second time slot, the first class nodes with odd levels transmit self power-off information to the first class nodes of the father level;
and in a third time slot, all the first type nodes which are not successfully reported in the first time slot or the second time slot transmit own power-down information to the first type nodes of the father stage.
The invention further provides that the second class node adopts a broadcasting mode to transmit power-down information to the surrounding first class node, the second class node and the boundary router, and the method comprises the following steps:
the second class node reports the power-down information to the boundary router;
the second class node transmits the power-down information to the surrounding second class nodes, the second class node which receives the power-down information of other second class nodes updates the power-down information to a bitmap table of the self node, and the power-down information of the self node is reported to the boundary router;
and the second class node transmits the power-down information to the surrounding first class nodes, the first class node which receives the power-down information of other second class nodes updates the power-down information to a bitmap table of the self node, and the power-down information of the self node is reported to the boundary router in a specific time slot.
The invention further sets that if the second class node transmitting the power-down information receives the power-down information of the second class node, which is broadcasted by other second class nodes, and the power-down information of the second class node comprises the power-down information of the second class node, the transmission of the power-down information of the second class node is stopped.
The invention is further arranged that the first type node is a first level node and is provided with a node with a child node or is not a first level node; the second class node is a first class node and is a node without a child node.
A system for improving the reporting rate of power-down information by using a Wi-SUN network, wherein the method for improving the reporting rate of power-down information by using the Wi-SUN network according to any one of claims 1 to 7 comprises:
the first class nodes are subjected to hierarchical division according to the levels to which the nodes belong, the first class nodes with at least one level of hierarchical intervals transmit power-down information in the same time slot, and unicast mode is adopted to transmit the power-down information to the first class nodes of the father level in a specified time slot; the first class node of the father level gathers the power-down information of the subordinate first class node in a specified time slot;
the second class node transmits power-down information to the first class node, the second class node and the boundary router in a specified time slot in a broadcasting mode;
the boundary router receives power-down information of the first class node and the second class node which are primary nodes;
and the management system receives the power-down information of all the nodes converged by the boundary router.
The electronic equipment comprises a memory and a processor, wherein the memory stores a computer program, and the computer program, when executed by the processor, enables the processor to execute the method for improving the power-down information reporting rate of the Wi-SUN network.
A storage medium, on which computer program instructions are stored, the computer program instructions, when executed by a processor, implement the method for improving the reporting rate of power failure information by the Wi-SUN network.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention classifies the different types of nodes in the Wi-SUN network, wherein 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 the trans-level transmission of the Wi-SUN network is not mutually influenced, the trans-level first-class nodes upload the power-down information in the same unicast time slot, so that the overall power-down information reporting efficiency of the Wi-SUN network is improved; and on the basis, the parent first class nodes are utilized to gather the power-down information, so that the overall data transmission quantity of the Wi-SUN network is effectively reduced, and the reporting rate of the power-down information of each node of the Wi-SUN network is greatly improved.
Drawings
Fig. 1 is a schematic diagram illustrating aggregation of power down information of a first class node pair in a Wi-SUN network according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating aggregation of power down information of a first class node pair in a Wi-SUN network according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a broadcast mode and a unicast mode for transmitting power-down information in a Wi-SUN network according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a first class node cross-stage transmission power-down information in a Wi-SUN network according to an embodiment of the present invention.
Fig. 5 shows a bitmap representation of 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, the present invention will be described in detail with reference to the drawings and examples.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be noted that, in the following description, a technical solution in the embodiment of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiment of the present invention, and it is apparent that the described embodiment is only a part of the embodiment of the present invention, but not all the embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to fig. 4, the technical scheme of the invention is a method for improving the reporting rate of power failure information by a Wi-SUN network, comprising the following steps:
dividing the nodes into a first type node and a second type node according to different types of the nodes, transmitting power-down information by adopting a unicast mode for the first type node, and transmitting power-down information by adopting a broadcast mode for the second type node;
performing hierarchical division on the first class nodes according to the hierarchy to which the nodes belong, wherein the first class nodes with at least one level of hierarchical intervals transmit power-down information in the same time slot; the first class nodes adjacent to the hierarchy transmit power-down information in different time slots;
the power-off information transmitted by the first class nodes of the same hierarchy level in the same time slot is converged on the first class nodes of the same father hierarchy level;
and the boundary router acquires the power-down information transmitted by the first type node and the second type node and reports the power-down information to the management system.
It should be noted that in other embodiments, the steps of the corresponding method are not necessarily performed in the order shown and described in this specification. In some other embodiments, the method may include more or fewer steps than described in this specification. Furthermore, individual steps described in this specification, in other embodiments, may be described as being split into multiple steps; while various steps described in this specification may be combined into a single step in other embodiments.
In fig. 2 to 4, the first type NODE is denoted by a prefix NODE, and a suffix number of the first type NODE represents a sequence number of the first type NODE; the second class NODE is represented by a prefix Leaf NODE, and the suffix number of the second class NODE represents the serial number of the second class NODE.
In the above embodiment, the first class node is a primary node and has a node of a child node or is not a node of a primary node; the second class node is a first class node and is a node without a child node. As shown in FIG. 3, NODEs NODE1, NODE2, NODE3, NODE4, NODEN, etc. represent different first class NODEs; the NODEs Leaf NODE1, leaf NODE2, and Leaf NODE n represent different second class NODEs.
In the above embodiment, the unicast mode is: the node can only transmit power-down information to the upper node, and after the power-down information is transmitted, the node can also acquire an ACK (acknowledgement) confirmation signal returned by the upper node, and the same power-down information can not be transmitted again after receiving the ACK confirmation signal; the broadcasting mode is as follows: the node transmits power-down information to the border router or other surrounding primary nodes.
In fig. 2 to 4, the level of the first type node is determined by the link position of the node itself in the Wi-SUN network. For example, in FIG. 2, NODEs NODE1 and NODE2 are first class NODEs of the first hierarchy; NODEs NODE3, NODE4 and NODE5 are first class NODEs of the second hierarchy; NODE6, NODE7, and NODE are the first class of NODEs of the third hierarchy.
In this embodiment, the first class node and the second class node each generate a bitmap table containing power-down information, where 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 powered down, the corresponding bit position in the bitmap table is 1; and when the first type node or the second type node is not powered down, the corresponding bit position in the bitmap table is 0.
As shown in fig. 5, the bitmap table contains N bytes, and each Byte contains 8 bits, so that there is a representation of the following node device information, for example: byte1 bit0 represents node device information with IP 0; byte1 bit7 represents node device information of IP 7; byteN bit0 represents node equipment information with IP of (N-1) x 8; byteN bit7 represents node device information with IP of (N-1). Times. 8+7. The "1" and "0" on each bit represent the power down and non-power down states of the node, respectively.
In this embodiment, the first class nodes are divided into levels 1 to R according to the levels to which the nodes belong, and power-down information is transmitted in the same time slot according to the first class nodes separated by at least level a, where R > a;
selecting different time slots according to the hierarchy of the first class node; the transmission time slot of the first type node is
T=t_easchlevatmex (Level% a) +random ()% t_easchlevatme; wherein t_eashlyqme is a time period in which each Level allows reporting, level is a Level to which a first class node belongs, and Random () is a Random function;
when the first class node is in a time period allowing reporting, the first class node transmits power-down information to the first class node of a father stage of the first class node, the first class node of the father stage updates the power-down information to a bitmap table of a self node, the first class node of the father stage sends an acknowledgement signal ACK to the first class node transmitting the power-down information, the first class node receiving the acknowledgement signal ACK does not transmit the power-down information any more; the power-off information transmitted by the first class nodes of the same level in the time period of reporting permission is converged on the first class nodes of the same father level;
and the like until all the first type nodes transmit power-down information to the boundary router.
In the above embodiment, for example, the first type node in a certain Wi-SUN network includes 1-6 levels, and performs synchronous transmission of the drop information at intervals of 3 levels: in a first unicast time slot, a first class node at a 3 rd level transmits a power-down signal to the first class node of a father level of the first class node at the 3 rd level, and a first class node at a 6 th level transmits a power-down signal to a first class node at a 5 th level; in the second unicast time slot, the first class node at the 2 nd level transmits a power-down signal to the first class node at the 1 st level, and the first class node at the 5 th level transmits a power-down signal to the first class node at the 4 th level; in the third unicast time slot, the first class node at the 1 st level transmits a power-down signal to the boundary router, and the first class node at the 4 th level transmits a power-down signal to the first class node at the 3 rd level; and the like until all the first type nodes transmit power-down information to the boundary router.
In this embodiment, the value of a is 2, that is, the first type node is divided into the first type node with an even level and the first type node with an odd level; as shown in figure 4 of the drawings,
in the first time slot T 0 ～T 1 In the first class node, the hierarchy is even, and the first class node transmits self power-off information to the first class node of the father level;
in the second time slot T 1 ～T 2 In the first class nodes with odd levels, transmitting self power-off information to the first class nodes of the father level;
in the third time slot T 2 ～T 3 And transmitting self power-off information to the first type nodes of the father stage by all the first type nodes which are not successfully reported in the first time slot or the second time slot.
In the above embodiment, the time that the energy storage capacitor of the first type node can support in the Wi-SUN network is T z Then there is T 3 ＜T z 。
In the above embodiment, the interval cross-stage synchronous transmission power-down signal is that the cross-stage transmission of the Wi-SUN network is maximally utilized, and the first class node of the cross-stage uploads the power-down information in the same unicast time slot, so that the overall power-down information reporting efficiency of the Wi-SUN network is improved; and the actual Wi-SUN network level is not too much, so that for some nodes of the first type cannot report in the corresponding first time slot or second time slot due to other factors of the network, in the third time slot, the power-down information is transmitted in a free reporting mode.
In this embodiment, the transmitting, by the second class node, power-down information to the surrounding first class node, the second class node and the border router in a broadcast manner includes:
the second class node reports the power-down information to the boundary router;
the second class node transmits the power-down information to the surrounding second class nodes, the second class node which receives the power-down information of other second class nodes updates the power-down information to a bitmap table of the self node, and the power-down information of the self node is reported to the boundary router;
and the second class node transmits the power-down information to the surrounding first class nodes, the first class node which receives the power-down information of other second class nodes updates the power-down information to a bitmap table of the self node, and the power-down information of the self node 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 period of time, for example, the period of time is T d ～T u The time which can be supported by the energy storage capacitor of the second class node in the Wi-SUN network is T z Then there is T u ＜T z 。
In the above embodiment, a multi-path transmission path is adopted for the broadcasting mode of the second class node, including transmitting power-down information to other surrounding second class nodes and first class nodes of a first class level; of course, the first class node receives the power-down information of the second class node and is also constrained by the specified unicast time slot, and the first class node delays transmission. The power-down information of the second class of nodes adopts a multi-path transmission mode which is redundant processing so as to ensure that the boundary router can receive the power-down information of all the nodes as much as possible.
In this embodiment, if the second type node that transmits the power-down information receives the power-down information that includes the power-down information of itself and is broadcasted by other second type nodes, the transmission of the power-down information of the own node is stopped; and the data transmission quantity of the whole Wi-SUN network can be effectively reduced.
The method for improving the power-down information reporting rate of the Wi-SUN network has the advantages that the time slot resources of the Wi-SUN network can be fully utilized in a parallel mode of various mechanisms, the overall power-down 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 reporting rate of the power-down information of each node of the Wi-SUN network is greatly improved.
Example 2
Referring to fig. 2 to fig. 4, the technical scheme of the present invention is a system for improving the reporting rate of power-down information by using a Wi-SUN network, and the method for improving the reporting rate of power-down information by using the Wi-SUN network described in embodiment 1 includes:
the first class nodes are subjected to hierarchical division according to the levels to which the nodes belong, the first class nodes with at least one level of hierarchical intervals transmit power-down information in the same time slot, and unicast mode is adopted to transmit the power-down information to the first class nodes of the father level in a specified time slot; the first class node of the father level gathers the power-down information of the subordinate first class node in a specified time slot;
the second class node transmits power-down information to the first class node, the second class node and the boundary router in a specified time slot in a broadcasting mode;
the boundary router receives power-down information of the first class node and the second class node which are primary nodes;
and the management system receives the power-down information of all the nodes converged by the boundary router.
In the above embodiments, as shown in fig. 2 to 4, the NODEs NODE1, NODE2, NODE3, NODE4, NODE, etc. represent different first class NODEs; the NODEs Leaf NODE1, leaf NODE2, and Leaf NODE n represent different second class NODEs. NODEs NODE1 and NODE2 are first class NODEs of a first hierarchy; NODEs NODE3, NODE4 and NODE5 are first class NODEs of the second hierarchy; NODE6, NODE7, and NODE are the first class of NODEs of the third hierarchy.
In the above embodiment, the border router is the BR in the drawings.
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, where the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the method for improving the reporting rate of power-down information in the Wi-SUN network described in embodiment 1.
Example 4
A storage medium having stored thereon computer program instructions that when executed by a processor implement the method for improving a power down information reporting rate for a Wi-SUN network of embodiment 1.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims (10)

1. The method for improving the power-down information reporting rate of the Wi-SUN network is characterized by comprising the following steps of:
dividing the nodes into a first type node and a second type node according to different types of the nodes, transmitting power-down information by adopting a unicast mode for the first type node, and transmitting power-down information by adopting a broadcast mode for the second type node;
performing hierarchical division on the first class nodes according to the hierarchy to which the nodes belong, wherein the first class nodes with at least one level of hierarchical intervals transmit power-down information in the same time slot; the first class nodes adjacent to the hierarchy transmit power-down information in different time slots;
the power-off information transmitted by the first class nodes of the same hierarchy level in the same time slot is converged on the first class nodes of the same father hierarchy level;
the boundary router acquires power-down information transmitted by the first type node and the second type node and reports the power-down information to a management system;
the first type node is a first level node and is provided with a node with a child node or is not a first level node; the second class node is a first class node and is a node without a child node.
2. The method for improving the reporting rate of the power-down information of the Wi-SUN network according to claim 1, wherein the first type node and the second type node generate bitmap tables containing the power-down information, and each bit in the bitmap tables corresponds to one node in the Wi-SUN network respectively; when the first class node or the second class node is powered down, the corresponding bit position in the bitmap table is 1; and when the first type node or the second type node is not powered down, the corresponding bit position in the bitmap table is 0.
3. The method for improving the power-down information reporting rate of the Wi-SUN network according to claim 2, wherein the first type nodes are divided into layers 1-R according to the layer to which the nodes belong, and the power-down information is transmitted in the same time slot according to the first type nodes separated by at least A level, wherein R is more than A;
selecting different time slots according to the hierarchy of the first class node; the transmission time slot of the first type node is
T=t_easchlevatmex (Level% a) +random ()% t_easchlevatme; wherein t_eashlyqme is a time period in which each Level allows reporting, level is a Level to which a first class node belongs, and Random () is a Random function;
when the first class node is in a time period allowing reporting, the first class node transmits power-down information to the first class node of a father stage of the first class node, the first class node of the father stage updates the power-down information to a bitmap table of a self node, the first class node of the father stage sends an acknowledgement signal ACK to the first class node transmitting the power-down information, the first class node receiving the acknowledgement signal ACK does not transmit the power-down information any more; the power-off information transmitted by the first class nodes of the same level in the time period of reporting permission is converged on the first class nodes of the same father level;
and the like until all the first type nodes transmit power-down information to the boundary router.
4. The method for improving the power-down information reporting rate of the Wi-SUN network according to claim 3, wherein the value of a is 2, namely the first type nodes are divided into the first type nodes with even levels and the first type nodes with odd levels;
in a first time slot, the first class nodes with even levels transmit own power-down information to the first class nodes of the father level;
in the second time slot, the first class nodes with odd levels transmit self power-off information to the first class nodes of the father level;
and in a third time slot, all the first type nodes which are not successfully reported in the first time slot or the second time slot transmit own power-down information to the first type nodes of the father stage.
5. The method for improving the reporting rate of the power-down information in the Wi-SUN network according to claim 2, wherein the second class node transmits the power-down information to the surrounding first class node, the second class node and the border router in a broadcast manner, and the method comprises the following steps:
the second class node reports the power-down information to the boundary router;
the second class node transmits the power-down information to the surrounding second class nodes, the second class node which receives the power-down information of other second class nodes updates the power-down information to a bitmap table of the self node, and the power-down information of the self node is reported to the boundary router;
and the second class node transmits the power-down information to the surrounding first class nodes, the first class node which receives the power-down information of other second class nodes updates the power-down information to a bitmap table of the self node, and the power-down information of the self node is reported to the boundary router in a specific time slot.
6. The method for improving the reporting rate of the power-down information in the Wi-SUN network according to claim 5, wherein if the second type node transmitting the power-down information receives the power-down information broadcasted by other second type nodes and includes the power-down information of the second type node, the transmission of the power-down information of the second type node is stopped.
7. The method for improving the reporting rate of power-down information in a Wi-SUN network according to any one of claims 1 to 6, wherein the first type of node is a primary node and a node with a child node or a node not being a primary node; the second class node is a first class node and is a node without a child node.
8. A system for improving the reporting rate of power-down information by using a Wi-SUN network, wherein the method for improving the reporting rate of power-down information by using the Wi-SUN network according to any one of claims 1 to 7 comprises:
the first class nodes are subjected to hierarchical division according to the levels to which the nodes belong, the first class nodes with at least one level of hierarchical intervals transmit power-down information in the same time slot, and unicast mode is adopted to transmit the power-down information to the first class nodes of the father level in a specified time slot; the first class node of the father level gathers the power-down information of the subordinate first class node in a specified time slot;
the second class node transmits power-down information to the first class node, the second class node and the boundary router in a specified time slot in a broadcasting mode;
the boundary router receives power-down information of the first class node and the second class node which are primary nodes;
and the management system receives the power-down information of all the nodes converged by the boundary router.
9. An electronic device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the method of enhancing the reporting rate of power down information for the Wi-SUN network of 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 of the Wi-SUN network of any one of claims 1 to 7 for improving the reporting rate of power down information.
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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