WO2024087414A1 - Method and system for increasing power failure information reporting rate of wi-sun network, device, and medium - Google Patents

Method and system for increasing power failure information reporting rate of wi-sun network, device, and medium Download PDF

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Publication number
WO2024087414A1
WO2024087414A1 PCT/CN2023/075578 CN2023075578W WO2024087414A1 WO 2024087414 A1 WO2024087414 A1 WO 2024087414A1 CN 2023075578 W CN2023075578 W CN 2023075578W WO 2024087414 A1 WO2024087414 A1 WO 2024087414A1
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type
nodes
node
information
power
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PCT/CN2023/075578
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French (fr)
Chinese (zh)
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王天琦
康克华
李材辉
戴翚
王刚
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杭州粒合信息科技有限公司
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Publication of WO2024087414A1 publication Critical 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

Definitions

  • the present invention relates to the field of Wi-SUN communication technology, and in particular to a method, system, device and medium for improving a power failure information reporting rate in a Wi-SUN network.
  • Wi-SUN is a networking technology defined from the physical layer to the transmission layer.
  • Wi-SUN is a networking technology defined from the physical layer to the transmission layer.
  • it has been widely used in various fields, such as power meters, photovoltaic energy, smart cities, etc.
  • the device needs to have the function of reporting power failure in many scenarios, which means: when the external power supply of the device fails and loses power, it needs to use an additional circuit to achieve continuous power supply and complete the task of reporting the current data and power failure event to the background control center.
  • most devices are required to have energy storage capacitors.
  • the device's Lastgasp information can be actively reported to the system so that the system can perform subsequent related processing.
  • Lastgasp information refers to power failure information.
  • each node in the Wi-SUN network has a unique IP address in the entire network, so each node has the ability to communicate directly to the management system.
  • Lastgasp information reporting is mostly carried out by the node directly sending its own Lastgasp information to the management system.
  • this method has the following defects: 1.
  • any node that wants to transmit data to the management system must transmit data through its own path in the Wi-SUN network, and then transmit it to its parent node, and then its parent node transmits it to its parent node's parent node, and so on, until it is transmitted to the board router (BR) of the Wi-SUN network, and then transmitted from BR to the gateway, and finally reaches the management system.
  • BR board router
  • any node that transmits Lastgasp information must go through the completed link transmission. If all nodes in the entire network lose power at the same time, Lastgasp information needs to be sent.
  • the actual network transmission data volume is large, the network is more congested, collisions increase, and the transmission success rate is not high; 2.
  • the Wi-SUN device After the Wi-SUN device loses power, its capacitor can support a certain number of transmissions. If the traditional method is used, if some nodes have many nodes hanging below them (assuming that N nodes need to be forwarded by this node to reach BR), it is very easy to cause the capacitor of the key node to be exhausted, and ultimately cause the lastgasp transmission success rate of the entire network to be low.
  • the technical solution provided by the present invention is:
  • a method for improving a reporting rate of power failure information in a Wi-SUN network comprising:
  • nodes According to different types of nodes, they are divided into first-type nodes and second-type nodes. For the first-type nodes, power-off information is transmitted in unicast mode, and for the second-type nodes, power-off information is transmitted in broadcast mode.
  • the first-type nodes are divided into levels according to the levels to which the nodes belong, and the first-type nodes separated by at least one level in the level transmit power-off information in the same time slot; and the first-type nodes adjacent in the level transmit power-off 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 aggregated at the first-type nodes at the same parent level;
  • the border router obtains the power-off information transmitted by the first-type nodes and the second-type nodes and reports the information to the management system.
  • the present invention is further configured such that both the first type node and the second type node generate a bitmap table containing power-off information, and each bit in the bitmap table corresponds to a node in the Wi-SUN network; when the first type node or the second type node is powered off, the corresponding bit position in the bitmap table is set to 1; when the first type node or the second type node is not powered off, the corresponding bit position in the bitmap table is set to 0.
  • the present invention is further configured to divide the first type of nodes into levels 1 to R according to the level to which the nodes belong, and transmit power-off information in the same time slot according to the first type of nodes separated by at least A levels, where R>A;
  • Different time slots are selected according to the level of the first type of nodes; the transmission time slot of the first type of nodes is
  • T T_EachLeveltime ⁇ (Level%A)+Random()%T_EachLeveltime; T_EachLeveltime is the time period allowed for reporting at each level, Level is the level to which the first type of node belongs, and Random() is a random function;
  • the first-type node When the first-type node is within the time period in which reporting is allowed, the first-type node transmits power-off information to the first-type node of the parent of the first-type node, and the first-type node of the parent updates the power-off information to the bitmap table of its own node, and the first-type node of the parent sends a confirmation signal ACK to the first-type node that transmits the power-off information, indicating that the transmitted power-off information is received, and the first-type node that receives the confirmation signal ACK no longer transmits the power-off information; the power-off information transmitted by the first-type nodes of the same level in the time period in which reporting is allowed is aggregated to the first-type node of the same parent;
  • the process is deduced in this way until all the first-type nodes transmit the power-off information to the border router.
  • the present invention is further configured such that the value of A is 2, that is, the first type of nodes are divided into the first type of nodes with even levels and the first type of nodes with odd levels;
  • the first-type node with an even-numbered level transmits its own power-off information to the first-type node of the parent level;
  • the first-type node with an odd level transmits its own power-off information to the first-type node of the parent level
  • all the first-type nodes that have not successfully reported in the first time slot or the second time slot transmit their own power-off information to the parent first-type node.
  • the present invention is further configured such that the second type of node transmits power failure information to the surrounding first type of nodes, the second type of nodes and border routers in a broadcasting manner, including:
  • the second type of node reports the power failure information to the border router
  • the second type of node transmits the power failure information to the surrounding second type of nodes.
  • the second type of node that receives the power failure information of other second type of nodes updates the power failure information into the bitmap table of its own node, and reports the power failure information of its own node to the border router;
  • the second type of node transmits power off information to the surrounding first type of nodes.
  • the first type of node that receives power off information from other second type of nodes updates the power off information to its own node's bitmap table and reports the power off information of its own node to the border router within a specific time slot.
  • the present invention is further configured to stop transmission of its own node power-off information if the second-type node transmitting the power-off information receives power-off information broadcasted by other second-type nodes that includes its own power-off information.
  • the present invention is further configured such that the first type of node is a first-level node with a sub-node or a node that is not a first-level node; and the second type of node is a first-level node without a sub-node.
  • a system for improving a power failure information reporting rate in a Wi-SUN network characterized in that the method for improving a power failure information reporting rate in a Wi-SUN network according to any one of claims 1 to 7 is adopted, comprising:
  • the first-class nodes are hierarchically divided according to the hierarchies to which the nodes belong, and the first-class nodes separated by at least one level in the hierarchical level transmit power-off information in the same time slot, and transmit the power-off information to the first-class nodes of the parent level in a unicast manner in the prescribed time slot; the first-class nodes of the parent level aggregate the power-off information of the first-class nodes of the subordinate level in the prescribed time slot;
  • the second type of nodes transmit the power failure information to the first type of nodes, the second type of nodes and the border router by broadcasting in the specified time slot;
  • a border router receives power failure information of the first type of nodes and the second type of nodes which are first-level nodes;
  • the management system receives power failure information of all nodes aggregated by the border router.
  • An electronic device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the method for improving a reporting rate of power failure information in a Wi-SUN network.
  • a storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the method for improving the reporting rate of power failure information in a Wi-SUN network is implemented.
  • the present invention classifies different types of nodes in a Wi-SUN network.
  • the first type of nodes use unicast time slots, and the second type of nodes use broadcast time slots, so as to make full use of the time slot resources of the Wi-SUN network.
  • the cross-level first type of nodes upload power-off information in the same unicast time slot, so as to speed up the overall power-off information reporting efficiency of the Wi-SUN network.
  • the parent first type of nodes are used to aggregate the power-off information, so as to effectively reduce the data transmission volume of the overall Wi-SUN network, thereby greatly improving the reporting rate of the power-off information of each node in the Wi-SUN network.
  • FIG1 is a schematic diagram of power failure information aggregation by a first type of node in a Wi-SUN network according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of power failure information aggregation by the first type of nodes in a Wi-SUN network according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of transmitting power-off 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 cross-level transmission of power-off information by a first type of node in a Wi-SUN network according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of 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 present invention.
  • the technical solution of the present invention is a method for improving the reporting rate of power failure information in a Wi-SUN network, including:
  • nodes According to different types of nodes, they are divided into first-type nodes and second-type nodes. For the first-type nodes, power-off information is transmitted in unicast mode, and for the second-type nodes, power-off information is transmitted in broadcast mode.
  • the first-type nodes are divided into levels according to the levels to which the nodes belong, and the first-type nodes separated by at least one level in the level transmit power-off information in the same time slot; and the first-type nodes adjacent in the level transmit power-off 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 aggregated at the first-type nodes at the same parent level;
  • the border router obtains the power-off information transmitted by the first-type nodes and the second-type nodes and reports the information to the management system.
  • the steps of the corresponding method are not necessarily performed in the order shown and described in this specification. In some other embodiments, the steps included in the method may be more or less than those described in this specification. In addition, a single step described in this specification may be decomposed into multiple steps for description in other embodiments; and multiple steps described in this specification may be combined into a single step for description in other embodiments.
  • the first type of node is represented by the prefix NODE, and the suffix number of the first type of node represents the serial number of the first type of node;
  • the second type of node is represented by the prefix Leaf NODE, and the suffix number of the second type of node represents the serial number of the second type of node.
  • the first type of node is a first-level node with a child node or a node that is not a first-level node;
  • the second type of node is a first-level node without a child node.
  • node NODE1, node NODE2, node NODE3, node NODE4, node NODEN, etc. represent different first-type nodes;
  • node Leaf NODE1, node Leaf NODE2, and node Leaf NODEN represent different second-type nodes.
  • the unicast mode is: the node can only transmit power-off information to the upper-level node. After the power-off information is transmitted, an ACK confirmation signal returned by the upper-level node will be obtained. After receiving the ACK confirmation signal, there is no need to send the same power-off information again; the broadcast mode is: the node transmits power-off information to the border router or other surrounding first-level nodes.
  • the level of the first-class node is determined by the link position of the node itself in the Wi-SUN network.
  • nodes NODE1 and NODE2 are first-class nodes of the first level
  • nodes NODE3, NODE4 and NODE5 are first-class nodes of the second level
  • nodes NODE6, NODE7 and NODEN are first-class nodes of the third level.
  • both the first-type node and the second-type node generate a bitmap table containing power-off information, and each bit in the bitmap table corresponds to a node in the Wi-SUN network; when the first-type node or the second-type node is powered off, the corresponding bit position in the bitmap table is set to 1; when the first-type node or the second-type node is not powered off, the corresponding bit position in the bitmap table is set to 0.
  • the bitmap table contains N bytes, each of which contains 8 bits, and the following node device information is represented, for example: Byte1 bit0 represents the node device information with IP 0; Byte1 bit7 represents the node device information with IP 7; ByteN bit0 represents the node device information with IP (N-1) ⁇ 8; ByteN bit7 represents the node device information with IP (N-1) ⁇ 8+7.
  • the “1” and "0" on each bit represent the power-off state and the non-power-off state of the node respectively.
  • the first type of nodes are divided into levels 1 to R according to the level to which the nodes belong, and the first type of nodes separated by at least A levels transmit power-off information in the same time slot, where R>A;
  • Different time slots are selected according to the level of the first type of nodes; the transmission time slot of the first type of nodes is
  • T T_EachLeveltime ⁇ (Level%A)+Random()%T_EachLeveltime; T_EachLeveltime is the time period allowed for reporting at each level, Level is the level to which the first type of node belongs, and Random() is a random function;
  • the first-type node When the first-type node is within the time period in which reporting is allowed, the first-type node transmits power-off information to the first-type node of the parent of the first-type node, and the first-type node of the parent updates the power-off information to the bitmap table of its own node, and the first-type node of the parent sends a confirmation signal ACK to the first-type node that transmits the power-off information, indicating that the transmitted power-off information is received, and the first-type node that receives the confirmation signal ACK no longer transmits the power-off information; the power-off information transmitted by the first-type nodes of the same level in the time period in which reporting is allowed is aggregated to the first-type node of the same parent;
  • the process is deduced in this way until all the first-type nodes transmit the power-off information to the border router.
  • the first-class nodes in a certain Wi-SUN network include 1 to 6 layers, and synchronously transmit offline information at intervals of 3 layers: in the first unicast time slot, the first-class nodes at the 3rd layer transmit a power-off signal to the first-class nodes at the 3rd layer, and the first-class nodes at the 6th layer transmit a power-off signal to the first-class nodes at the 5th layer; in the second unicast time slot, the first-class nodes at the 2nd layer transmit a power-off signal to the first-class nodes at the 1st layer, and the first-class nodes at the 5th layer transmit a power-off signal to the first-class nodes at the 4th layer; in the third unicast time slot, the first-class nodes at the 1st layer transmit a power-off signal to the border router, and the first-class nodes at the 4th layer transmit a power-off signal to the first-class nodes at the 3rd layer
  • the value of A is 2, that is, the first type of nodes are divided into the first type of nodes with even levels and the first type of nodes with odd levels; as shown in FIG4,
  • the first-type node with an even-numbered level transmits its own power-off information to the first-type node of the parent level;
  • the first-type node with an odd level transmits its own power-off information to the first-type node of the parent level;
  • the time that the energy storage capacitor of the first type of node in the Wi-SUN network can support is T z , then T 3 ⁇ T z exists.
  • the interval cross-level synchronous transmission of the power-off signal is to maximize the use of the cross-level transmission of the Wi-SUN network without affecting each other.
  • the first-class nodes across the level upload the power-off information in the same unicast time slot, which speeds up the overall power-off information reporting efficiency of the Wi-SUN network.
  • the actual Wi-SUN network will not have too many levels. Therefore, for some first-class nodes that fail to report in the corresponding first time slot or second time slot due to other network factors, the power-off information is transmitted in the third time slot in a free reporting manner.
  • the second type of node transmits the power failure information to the surrounding first type of nodes, the second type of nodes and the border router in a broadcasting manner, including:
  • the second type of node reports the power failure information to the border router
  • the second type of node transmits the power failure information to the surrounding second type of nodes.
  • the second type of node that receives the power failure information of other second type of nodes updates the power failure information into the bitmap table of its own node, and reports the power failure information of its own node to the border router;
  • the second type of node transmits power off information to the surrounding first type of nodes.
  • the first type of node that receives power off information from other second type of nodes updates the power off information to its own node's bitmap table and reports the power off information of its own node to the border router within a specific time slot.
  • the second type of node transmits power failure information in a broadcasting manner, and thus can transmit power failure information in a relatively long period of time.
  • the period of time is T d -T u
  • the time that the energy storage capacitor of the second type of node in the Wi-SUN network can support is T z , then Tu ⁇ T z exists.
  • the broadcast mode of the second type of node adopts a multi-path transmission mode, including transmitting the power-off information to other surrounding second type nodes and the first type nodes of the first level; of course, since the first type node is also subject to the constraints of the specified unicast time slot after receiving the power-off information of the second type of node, it is delayed to send.
  • the multi-path transmission mode of the power-off information of the second type of node is redundant processing, in order to ensure that the border router can receive the power-off information of all nodes as much as possible.
  • the second type of node transmitting power-off information receives power-off information broadcast by other second type nodes including its own offline information, it stops transmitting its own node power-off information; it can also effectively reduce the overall data transmission volume of the Wi-SUN network.
  • the method for improving the reporting rate of power failure information in a Wi-SUN network of the present invention uses multiple mechanisms in parallel, which can fully utilize the time slot resources of the Wi-SUN network, speed up the reporting efficiency of the overall power failure information of the Wi-SUN network, and effectively reduce the overall data transmission volume of the Wi-SUN network, thereby greatly improving the reporting rate of power failure information of each node in the Wi-SUN network.
  • the technical solution of the present invention is a system for improving the reporting rate of power failure information in a Wi-SUN network, and the method for improving the reporting rate of power failure information in a Wi-SUN network described in Example 1 includes:
  • the first-class nodes are hierarchically divided according to the hierarchies to which the nodes belong, and the first-class nodes separated by at least one level in the hierarchical level transmit power-off information in the same time slot, and transmit the power-off information to the first-class nodes of the parent level in a unicast manner in the prescribed time slot; the first-class nodes of the parent level aggregate the power-off information of the first-class nodes of the subordinate level in the prescribed time slot;
  • the second type of nodes transmit the power failure information to the first type of nodes, the second type of nodes and the border router by broadcasting in the specified time slot;
  • a border router receives power failure information of the first type of nodes and the second type of nodes which are first-level nodes;
  • the management system receives power failure information of all nodes aggregated by the border router.
  • nodes NODE1, NODE2, NODE3, NODE4, NODEN, etc. represent different first-class nodes
  • nodes Leaf NODE1, Leaf NODE2, and Leaf NODEN represent different second-class nodes.
  • Nodes NODE1 and NODE2 are first-class nodes of the first level
  • nodes NODE3, NODE4, and NODE5 are first-class nodes of the second level
  • nodes NODE6, NODE7, and NODEN are first-class nodes of the third level.
  • the border router is BR in the figure.
  • the technical solution of the present invention is an electronic device, the electronic device comprising a memory and a processor, the memory storing 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 failure information in a Wi-SUN network as described in Example 1.
  • a storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method for improving a reporting rate of power failure information in a Wi-SUN network as described in Embodiment 1.

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Abstract

Disclosed in the present invention are a method and system for increasing a power failure information reporting rate of a Wi-SUN network, a device, and a medium. The method comprises: according to different types of nodes, dividing the nodes into a first type of nodes and a second type of nodes, wherein the first type of nodes transmit power failure information in a unicast mode, and the second type of nodes transmit power failure information in a broadcast mode; according to levels to which the nodes belong, performing level division on the first type of nodes, wherein the first type of nodes that are at least one level apart transmit power failure information in a same time slot, and the first type of nodes at adjacent levels transmit power failure information in different time slots; aggregating the power failure information transmitted by the first type of nodes at the same level in the same time slot to the first type of nodes at the same parent level; and a border router acquiring the power failure information transmitted by the first type of nodes and the second type of nodes and reporting the power failure information to a management system. According to the present invention, time slot resources of the Wi-Sun network can be fully utilized, the overall power failure information reporting efficiency of the network is improved, and the amount of data transmission is effectively reduced, thereby improving the reporting rate of power failure information of each node of the Wi-SUN network.

Description

一种Wi-SUN网络提升掉电信息上报率的方法、系统、设备及介质A method, system, device and medium for improving the reporting rate of power failure information in a Wi-SUN network 技术领域Technical Field
本发明涉及Wi-SUN通信技术领域，具体涉及一种Wi-SUN网络提升掉电信息上报率的方法、系统、设备及介质。The present invention relates to the field of Wi-SUN communication technology, and in particular to a method, system, device and medium for improving a power failure information reporting rate in a Wi-SUN network.
背景技术Background technique
Wi-SUN是从物理层定义到传输层的一种组网技术，近年来，基于先进的组网及自修复技术和强大的安全加密机制，使其不断在各大领域得到广泛应用。例如：电力表计、光伏能源、智慧城市等等。Wi-SUN is a networking technology defined from the physical layer to the transmission layer. In recent years, based on advanced networking and self-healing technologies and powerful security encryption mechanisms, it has been widely used in various fields, such as power meters, photovoltaic energy, smart cities, etc.
在众多Wi-SUN技术应用中，很多场景下需要设备具有掉电上报的功能，解释为：当设备外部供电电源出现故障掉电后，需要通过额外的电路实现持续供电，完成当前数据及掉电事件到后台控制中心的上报任务。在目前的Wi-SUN通讯方案中，多要求设备具备储能电容，在设备掉电时，能把设备Lastgasp信息主动上报至系统，以便于系统做后续的相关处理，Lastgasp信息是指掉电信息。In many Wi-SUN technology applications, the device needs to have the function of reporting power failure in many scenarios, which means: when the external power supply of the device fails and loses power, it needs to use an additional circuit to achieve continuous power supply and complete the task of reporting the current data and power failure event to the background control center. In the current Wi-SUN communication solution, most devices are required to have energy storage capacitors. When the device loses power, the device's Lastgasp information can be actively reported to the system so that the system can perform subsequent related processing. Lastgasp information refers to power failure information.
技术问题technical problem
在现有的Wi-SUN通讯方案中，由于Wi-SUN支持ip通讯能力，各Wi-SUN网络的节点都具备全网唯一的ip地址，因此各节点具备直接通讯到管理系统的能力，Lastgasp信息上报多采用节点直接将自身Lastgasp信息发送到管理系统的方式进行。但这样的方式存在以下缺陷：1.由于Wi-SUN方案组网是Mesh网络，任何节点要传输数据到管理系统，其传输路径在Wi-SUN网络中，是由其自身开始，分别传输给其父节点，其父节点再传输给其父节点的父节点，以此类推，直到传输至Wi-SUN网络的边界路由器（Board Router，简称BR），再由BR传输至网关，最后到达管理系统，这种方式的传输，任何一个节点传输Lastgasp信息，都要经过完成的链路传输，若全网所有节点都同时发生掉电，需要发送Lastgasp信息，实际网络传输数据量大，网络较为拥挤，碰撞增加，传输成功率不高；2.在Wi-SUN设备掉电后，其电容能支撑的发送次数一定的情况，采用传统方式，若某些节点下挂节点众多（假设有N个节点都需要经过该节点的转发才能到达BR），非常容易造成该关键节点的电容电量耗尽，最终造成全网lastgasp传输成功率不高。In the existing Wi-SUN communication solution, since Wi-SUN supports IP communication capabilities, each node in the Wi-SUN network has a unique IP address in the entire network, so each node has the ability to communicate directly to the management system. Lastgasp information reporting is mostly carried out by the node directly sending its own Lastgasp information to the management system. However, this method has the following defects: 1. Since the Wi-SUN solution networking is a Mesh network, any node that wants to transmit data to the management system must transmit data through its own path in the Wi-SUN network, and then transmit it to its parent node, and then its parent node transmits it to its parent node's parent node, and so on, until it is transmitted to the board router (BR) of the Wi-SUN network, and then transmitted from BR to the gateway, and finally reaches the management system. In this transmission method, any node that transmits Lastgasp information must go through the completed link transmission. If all nodes in the entire network lose power at the same time, Lastgasp information needs to be sent. The actual network transmission data volume is large, the network is more congested, collisions increase, and the transmission success rate is not high; 2. After the Wi-SUN device loses power, its capacitor can support a certain number of transmissions. If the traditional method is used, if some nodes have many nodes hanging below them (assuming that N nodes need to be forwarded by this node to reach BR), it is very easy to cause the capacitor of the key node to be exhausted, and ultimately cause the lastgasp transmission success rate of the entire network to be low.
解决方案solution
为解决上述问题，本发明提供的技术方案为：To solve the above problems, the technical solution provided by the present invention is:
一种Wi-SUN网络提升掉电信息上报率的方法，包括：A method for improving a reporting rate of power failure information in a Wi-SUN network, comprising:
根据节点的类型不同分为第一类节点和第二类节点，对于所述第一类节点采用单播方式传输掉电信息，对于所述第二类节点采用广播方式传输掉电信息；According to different types of nodes, they are divided into first-type nodes and second-type nodes. For the first-type nodes, power-off information is transmitted in unicast mode, and for the second-type nodes, power-off information is transmitted in broadcast mode.
根据节点所属的层级将所述第一类节点进行层级划分，所述层级相隔至少一级的所述第一类节点在同一时隙内传输掉电信息；所述层级相邻的所述第一类节点在不同时隙内传输掉电信息；The first-type nodes are divided into levels according to the levels to which the nodes belong, and the first-type nodes separated by at least one level in the level transmit power-off information in the same time slot; and the first-type nodes adjacent in the level transmit power-off information in different time slots;
层级同级的所述第一类节点在同一时隙内传输的掉电信息汇聚于同一父级的所述第一类节点；The power failure information transmitted by the first-type nodes at the same level in the same time slot is aggregated at the first-type nodes at the same parent level;
边界路由器获取所述第一类节点和所述第二类节点传输的掉电信息并上报至管理系统。The border router obtains the power-off information transmitted by the first-type nodes and the second-type nodes and reports the information to the management system.
本发明进一步设置为所述第一类节点和所述第二类节点均产生包含掉电信息的bitmap表，所述bitmap表中的每一个bit位分别对应Wi-SUN网络中的一个节点；所述第一类节点或所述第二类节点在掉电时将所述bitmap表中对应的bit位置为1；所述第一类节点或所述第二类节点未掉电时所述bitmap表中对应的bit位置为0。The present invention is further configured such that both the first type node and the second type node generate a bitmap table containing power-off information, and each bit in the bitmap table corresponds to a node in the Wi-SUN network; when the first type node or the second type node is powered off, the corresponding bit position in the bitmap table is set to 1; when the first type node or the second type node is not powered off, the corresponding bit position in the bitmap table is set to 0.
本发明进一步设置为根据节点所属的层级将所述第一类节点划分为层级1～R，按相隔至少A级的所述第一类节点在同一时隙内传输掉电信息，其中R＞A；The present invention is further configured to divide the first type of nodes into levels 1 to R according to the level to which the nodes belong, and transmit power-off information in the same time slot according to the first type of nodes separated by at least A levels, where R>A;
根据所述第一类节点所处的层级，选择不同的时隙；所述第一类节点的传输时隙为Different time slots are selected according to the level of the first type of nodes; the transmission time slot of the first type of nodes is
T=T_EachLeveltime×(Level%A)+Random()%T_EachLeveltime；其中T_EachLeveltime为每一层级允许上报的时间段，Level为第一类节点的所属层级，Random()为随机函数；T=T_EachLeveltime×(Level%A)+Random()%T_EachLeveltime; T_EachLeveltime is the time period allowed for reporting at each level, Level is the level to which the first type of node belongs, and Random() is a random function;
当所述第一类节点处于允许上报的时间段内时，所述第一类节点将掉电信息传输到该所述第一类节点的父级的所述第一类节点，父级的所述第一类节点将该掉电信息更新到自身节点的bitmap表中，并且父级的所述第一类节点发送确认信号ACK给传输掉电信息的所述第一类节点，表示收到所传输的掉电信息，收到确认信号ACK的所述第一类节点不再传输掉电信息；层级同级的所述第一类节点在允许上报的时间段内传输的掉电信息汇聚于同一父级的所述第一类节点；When the first-type node is within the time period in which reporting is allowed, the first-type node transmits power-off information to the first-type node of the parent of the first-type node, and the first-type node of the parent updates the power-off information to the bitmap table of its own node, and the first-type node of the parent sends a confirmation signal ACK to the first-type node that transmits the power-off information, indicating that the transmitted power-off information is received, and the first-type node that receives the confirmation signal ACK no longer transmits the power-off information; the power-off information transmitted by the first-type nodes of the same level in the time period in which reporting is allowed is aggregated to the first-type node of the same parent;
以此类推，直至所有的所述第一类节点将掉电信息传输至所述边界路由器。The process is deduced in this way until all the first-type nodes transmit the power-off information to the border router.
本发明进一步设置为所述A取值为2，即将所述第一类节点分为层级为偶数的所述第一类节点和层级为奇数的所述第一类节点；The present invention is further configured such that the value of A is 2, that is, the first type of nodes are divided into the first type of nodes with even levels and the first type of nodes with odd levels;
在第一时隙内，层级为偶数的所述第一类节点传输自身掉电信息至父级的所述第一类节点；In the first time slot, the first-type node with an even-numbered level transmits its own power-off information to the first-type node of the parent level;
在第二时隙内，层级为奇数的所述第一类节点传输自身掉电信息至父级的所述第一类节点；In the second time slot, the first-type node with an odd level transmits its own power-off information to the first-type node of the parent level;
在第三时隙内，所有未在所述第一时隙或所述第二时隙内上报成功的所述第一类节点传输自身掉电信息至父级的所述第一类节点。In the third time slot, all the first-type nodes that have not successfully reported in the first time slot or the second time slot transmit their own power-off information to the parent first-type node.
本发明进一步设置为所述第二类节点采用广播方式向周围的所述第一类节点、所述第二类节点和边界路由器传输掉电信息，包括：The present invention is further configured such that the second type of node transmits power failure information to the surrounding first type of nodes, the second type of nodes and border routers in a broadcasting manner, including:
所述第二类节点将掉电信息上报到所述边界路由器；The second type of node reports the power failure information to the border router;
所述第二类节点将掉电信息传输到周围的所述第二类节点，接收到其他所述第二类节点的掉电信息的所述第二类节点将该掉电信息更新到自身节点的bitmap表中，并将自身节点的掉电信息上报到所述边界路由器；The second type of node transmits the power failure information to the surrounding second type of nodes. The second type of node that receives the power failure information of other second type of nodes updates the power failure information into the bitmap table of its own node, and reports the power failure information of its own node to the border router;
所述第二类节点将掉电信息传输到周围的所述第一类节点，接收到其他所述第二类节点的掉电信息的所述第一类节点将该掉电信息更新到自身节点的bitmap表中，并在特定时隙内将自身节点的掉电信息上报到所述边界路由器。The second type of node transmits power off information to the surrounding first type of nodes. The first type of node that receives power off information from other second type of nodes updates the power off information to its own node's bitmap table and reports the power off information of its own node to the border router within a specific time slot.
本发明进一步设置为若传输掉电信息的所述第二类节点接收到其他所述第二类节点广播的掉电信息中包含自身的掉线信息，则停止自身节点掉电信息的传输。The present invention is further configured to stop transmission of its own node power-off information if the second-type node transmitting the power-off information receives power-off information broadcasted by other second-type nodes that includes its own power-off information.
本发明进一步设置为所述第一类节点为一级节点且带有子节点的节点或不为一级节点的节点；所述第二类节点为一级节点且不带有子节点的节点。The present invention is further configured such that the first type of node is a first-level node with a sub-node or a node that is not a first-level node; and the second type of node is a first-level node without a sub-node.
一种Wi-SUN网络提升掉电信息上报率的系统，其特征在于，采用权利要求1至7中任意一项所述的Wi-SUN网络提升掉电信息上报率的方法，包括：A system for improving a power failure information reporting rate in a Wi-SUN network, characterized in that the method for improving a power failure information reporting rate in a Wi-SUN network according to any one of claims 1 to 7 is adopted, comprising:
第一类节点，根据节点所属的层级将所述第一类节点进行层级划分，所述层级相隔至少一级的所述第一类节点在同一时隙内传输掉电信息，在规定的时隙内采用单播方式传输掉电信息给父级的第一类节点；父级的第一类节点在规定的时隙内汇聚下属的第一类节点的掉电信息；The first-class nodes are hierarchically divided according to the hierarchies to which the nodes belong, and the first-class nodes separated by at least one level in the hierarchical level transmit power-off information in the same time slot, and transmit the power-off information to the first-class nodes of the parent level in a unicast manner in the prescribed time slot; the first-class nodes of the parent level aggregate the power-off information of the first-class nodes of the subordinate level in the prescribed time slot;
第二类节点，在规定的时隙内采用广播方式传输掉电信息给第一类节点、第二类节点和边界路由器；The second type of nodes transmit the power failure information to the first type of nodes, the second type of nodes and the border router by broadcasting in the specified time slot;
边界路由器，接收为一级节点的所述第一类节点和所述第二类节点的掉电信息；A border router receives power failure information of the first type of nodes and the second type of nodes which are first-level nodes;
管理系统，接收所述边界路由器汇聚的所有节点的掉电信息。The management system receives power failure information of all nodes aggregated by the border router.
一种电子设备，所述电子设备包括存储器和处理器，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时，使得所述处理器执行上述的Wi-SUN网络提升掉电信息上报率的方法。An electronic device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the method for improving a reporting rate of power failure information in a Wi-SUN network.
一种存储介质，所述存储介质上存储有计算机程序指令，所述计算机程序指令被处理器执行时实现上述的Wi-SUN网络提升掉电信息上报率的方法。A storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the method for improving the reporting rate of power failure information in a Wi-SUN network is implemented.
有益效果Beneficial Effects
采用本发明提供的技术方案，与现有技术相比，具有如下有益效果：Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:
本发明将Wi-SUN网络中不同类型的节点进行分类，第一类节点采用单播时隙，第二类节点采用广播时隙，充分利用Wi-SUN网络的时隙资源；并且利用Wi-SUN网络的跨级传输相互不影响的特性，跨级的第一类节点在同一单播时隙上传掉电信息，加快Wi-SUN网络整体的掉电信息上报效率；在上述基础上利用父级第一类节点对掉电信息进行汇聚，有效降低Wi-SUN网络整体的数据传输量，从而大幅度地提高Wi-SUN网络各个节点掉电信息的上报率。The present invention classifies different types of nodes in a Wi-SUN network. The first type of nodes use unicast time slots, and the second type of nodes use broadcast time slots, so as to make full use of the time slot resources of the Wi-SUN network. In addition, by utilizing the characteristic that cross-level transmission of the Wi-SUN network does not affect each other, the cross-level first type of nodes upload power-off information in the same unicast time slot, so as to speed up the overall power-off information reporting efficiency of the Wi-SUN network. On the basis of the above, the parent first type of nodes are used to aggregate the power-off information, so as to effectively reduce the data transmission volume of the overall Wi-SUN network, thereby greatly improving the reporting rate of the power-off information of each node in the Wi-SUN network.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明实施例Wi-SUN网络中第一类节点对掉电信息汇聚示意图。FIG1 is a schematic diagram of power failure information aggregation by a first type of node in a Wi-SUN network according to an embodiment of the present invention.
图2为本发明实施例Wi-SUN网络中第一类节点对掉电信息汇聚示意图。FIG. 2 is a schematic diagram of power failure information aggregation by the first type of nodes in a Wi-SUN network according to an embodiment of the present invention.
图3为本发明实施例Wi-SUN网络中广播方式和单播方式传输掉电信息示意图。FIG. 3 is a schematic diagram of transmitting power-off information in a broadcast mode and a unicast mode in a Wi-SUN network according to an embodiment of the present invention.
图4为本发明实施例Wi-SUN网络中第一类节点跨级传输掉电信息示意图。FIG. 4 is a schematic diagram of cross-level transmission of power-off information by a first type of node in a Wi-SUN network according to an embodiment of the present invention.
图5为本发明实施例bitmap表示意图。FIG. 5 is a schematic diagram of a bitmap representation of an embodiment of the present invention.
图6为本发明实施例电子设备示意图。FIG. 6 is a schematic diagram of an electronic device according to an embodiment of the present invention.
本发明的实施方式Embodiments of the present invention
为进一步了解本发明的内容，结合附图及实施例对本发明作详细描述。In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
在本发明的描述中，需要说明的是，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。  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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
实施例Example
结合附图1至附图4，本发明技术方案是一种Wi-SUN网络提升掉电信息上报率的方法，包括：In conjunction with Figures 1 to 4, the technical solution of the present invention is a method for improving the reporting rate of power failure information in a Wi-SUN network, including:
根据节点的类型不同分为第一类节点和第二类节点，对于所述第一类节点采用单播方式传输掉电信息，对于所述第二类节点采用广播方式传输掉电信息；According to different types of nodes, they are divided into first-type nodes and second-type nodes. For the first-type nodes, power-off information is transmitted in unicast mode, and for the second-type nodes, power-off information is transmitted in broadcast mode.
根据节点所属的层级将所述第一类节点进行层级划分，所述层级相隔至少一级的所述第一类节点在同一时隙内传输掉电信息；所述层级相邻的所述第一类节点在不同时隙内传输掉电信息；The first-type nodes are divided into levels according to the levels to which the nodes belong, and the first-type nodes separated by at least one level in the level transmit power-off information in the same time slot; and the first-type nodes adjacent in the level transmit power-off information in different time slots;
层级同级的所述第一类节点在同一时隙内传输的掉电信息汇聚于同一父级的所述第一类节点；The power failure information transmitted by the first-type nodes at the same level in the same time slot is aggregated at the first-type nodes at the same parent level;
边界路由器获取所述第一类节点和所述第二类节点传输的掉电信息并上报至管理系统。The border router obtains the power-off information transmitted by the first-type nodes and the second-type nodes and reports the information to the management system.
需要说明的是，在其他实施例中并不一定按照本说明书示出和描述的顺序来执行相应方法的步骤。在一些其他实施例中，其方法所包括的步骤可以比本说明书所描述的更多或更少。此外，本说明书中所描述的单个步骤，在其他实施例中可能被分解为多个步骤进行描述；而本说明书中所描述的多个步骤，在其他实施例中也可能被合并为单个步骤进行描述。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 steps included in the method may be more or less than those described in this specification. In addition, a single step described in this specification may be decomposed into multiple steps for description in other embodiments; and multiple steps described in this specification may be combined into a single step for description in other embodiments.
在附图2至附图4中，所述第一类节点用前缀NODE表示，所述第一类节点的后缀数字代表所述第一类节点的序号；所述第二类节点用前缀Leaf NODE表示，所述第二类节点的后缀数字代表所述第二类节点的序号。In Figures 2 to 4, the first type of node is represented by the prefix NODE, and the suffix number of the first type of node represents the serial number of the first type of node; the second type of node is represented by the prefix Leaf NODE, and the suffix number of the second type of node represents the serial number of the second type of node.
在上述实施例中，所述第一类节点为一级节点且带有子节点的节点或不为一级节点的节点；所述第二类节点为一级节点且不带有子节点的节点。如附图3所示，节点NODE1、节点NODE2、节点NODE3、节点NODE4、节点NODEN等表示不同的第一类节点；节点Leaf NODE1、节点Leaf NODE2和节点Leaf NODEN表示不同的第二类节点。In the above embodiment, the first type of node is a first-level node with a child node or a node that is not a first-level node; the second type of node is a first-level node without a child node. As shown in FIG3 , node NODE1, node NODE2, node NODE3, node NODE4, node NODEN, etc. represent different first-type nodes; node Leaf NODE1, node Leaf NODE2, and node Leaf NODEN represent different second-type nodes.
在上述实施例中，单播方式为：该节点只能向上一级节点进行掉电信息的传输，掉电信息传输完毕后，还会获得上一级节点返回的ACK确认信号，收到ACK确认信号后可以不用再次发送相同的掉电信息；广播方式为：该节点向边界路由器或周围其他一级节点进行掉电信息的传输。In the above embodiment, the unicast mode is: the node can only transmit power-off information to the upper-level node. After the power-off information is transmitted, an ACK confirmation signal returned by the upper-level node will be obtained. After receiving the ACK confirmation signal, there is no need to send the same power-off information again; the broadcast mode is: the node transmits power-off information to the border router or other surrounding first-level nodes.
在附图2至附图4中，所述第一类节点的层级由该节点本身在Wi-SUN网络的链路位置确定。例如附图2中，节点NODE1和节点NODE2为第一层级的第一类节点；节点NODE3、节点NODE4和节点NODE5为第二层级的第一类节点；节点NODE6、节点NODE7和节点NODEN为第三层级的第一类节点。In Figures 2 to 4, the level of the first-class node is determined by the link position of the node itself in the Wi-SUN network. For example, in Figure 2, nodes NODE1 and NODE2 are first-class nodes of the first level; nodes NODE3, NODE4 and NODE5 are first-class nodes of the second level; nodes NODE6, NODE7 and NODEN are first-class nodes of the third level.
在本实施例中，所述第一类节点和所述第二类节点均产生包含掉电信息的bitmap表，所述bitmap表中的每一个bit位分别对应Wi-SUN网络中的一个节点；所述第一类节点或所述第二类节点在掉电时将所述bitmap表中对应的bit位置为1；所述第一类节点或所述第二类节点未掉电时所述bitmap表中对应的bit位置为0。In this embodiment, both the first-type node and the second-type node generate a bitmap table containing power-off information, and each bit in the bitmap table corresponds to a node in the Wi-SUN network; when the first-type node or the second-type node is powered off, the corresponding bit position in the bitmap table is set to 1; when the first-type node or the second-type node is not powered off, the corresponding bit position in the bitmap table is set to 0.
如附图5所示，bitmap表包含N个Byte，每一个Byte内包含8个Bit，则有以下节点设备信息的表示，例如：Byte1 bit0表示IP为0的节点设备信息；Byte1 bit7表示IP为7的节点设备信息；ByteN bit0表示IP为(N-1)×8的节点设备信息；ByteN bit7表示IP为(N-1)×8+7的节点设备信息。每一bit上的“1”和“0”分别代表这该节点的掉电状态和未掉电状态。As shown in Figure 5, the bitmap table contains N bytes, each of which contains 8 bits, and the following node device information is represented, for example: Byte1 bit0 represents the node device information with IP 0; Byte1 bit7 represents the node device information with IP 7; ByteN bit0 represents the node device information with IP (N-1)×8; ByteN bit7 represents the node device information with IP (N-1)×8+7. The "1" and "0" on each bit represent the power-off state and the non-power-off state of the node respectively.
在本实施例中，根据节点所属的层级将所述第一类节点划分为层级1～R，按相隔至少A级的所述第一类节点在同一时隙内传输掉电信息，其中R＞A；In this embodiment, the first type of nodes are divided into levels 1 to R according to the level to which the nodes belong, and the first type of nodes separated by at least A levels transmit power-off information in the same time slot, where R>A;
根据所述第一类节点所处的层级，选择不同的时隙；所述第一类节点的传输时隙为Different time slots are selected according to the level of the first type of nodes; the transmission time slot of the first type of nodes is
T=T_EachLeveltime×(Level%A)+Random()%T_EachLeveltime；其中T_EachLeveltime为每一层级允许上报的时间段，Level为第一类节点的所属层级，Random()为随机函数；T=T_EachLeveltime×(Level%A)+Random()%T_EachLeveltime; T_EachLeveltime is the time period allowed for reporting at each level, Level is the level to which the first type of node belongs, and Random() is a random function;
当所述第一类节点处于允许上报的时间段内时，所述第一类节点将掉电信息传输到该所述第一类节点的父级的所述第一类节点，父级的所述第一类节点将该掉电信息更新到自身节点的bitmap表中，并且父级的所述第一类节点发送确认信号ACK给传输掉电信息的所述第一类节点，表示收到所传输的掉电信息，收到确认信号ACK的所述第一类节点不再传输掉电信息；层级同级的所述第一类节点在允许上报的时间段内传输的掉电信息汇聚于同一父级的所述第一类节点；When the first-type node is within the time period in which reporting is allowed, the first-type node transmits power-off information to the first-type node of the parent of the first-type node, and the first-type node of the parent updates the power-off information to the bitmap table of its own node, and the first-type node of the parent sends a confirmation signal ACK to the first-type node that transmits the power-off information, indicating that the transmitted power-off information is received, and the first-type node that receives the confirmation signal ACK no longer transmits the power-off information; the power-off information transmitted by the first-type nodes of the same level in the time period in which reporting is allowed is aggregated to the first-type node of the same parent;
以此类推，直至所有的所述第一类节点将掉电信息传输至所述边界路由器。The process is deduced in this way until all the first-type nodes transmit the power-off information to the border router.
在上述实施例中，例如某一Wi-SUN网络中的第一类节点包含1～6层级，按间隔为3个层级的方式进行掉线信息同步传输：在第一单播时隙内，处于第3层级的第一类节点向第3层级的第一类节点传输掉电信号，处于第6层级的第一类节点向第5层级的第一类节点传输掉电信号；在第二单播时隙内，处于第2层级的第一类节点向第1层级的第一类节点传输掉电信号，处于第5层级的第一类节点向第4层级的第一类节点传输掉电信号；在第三单播时隙内，处于第1层级的第一类节点向边界路由器传输掉电信号，处于第4层级的第一类节点向第3层级的第一类节点传输掉电信号；以此类推，直至所有的所述第一类节点将掉电信息传输至所述边界路由器。In the above embodiment, for example, the first-class nodes in a certain Wi-SUN network include 1 to 6 layers, and synchronously transmit offline information at intervals of 3 layers: in the first unicast time slot, the first-class nodes at the 3rd layer transmit a power-off signal to the first-class nodes at the 3rd layer, and the first-class nodes at the 6th layer transmit a power-off signal to the first-class nodes at the 5th layer; in the second unicast time slot, the first-class nodes at the 2nd layer transmit a power-off signal to the first-class nodes at the 1st layer, and the first-class nodes at the 5th layer transmit a power-off signal to the first-class nodes at the 4th layer; in the third unicast time slot, the first-class nodes at the 1st layer transmit a power-off signal to the border router, and the first-class nodes at the 4th layer transmit a power-off signal to the first-class nodes at the 3rd layer; and so on, until all of the first-class nodes transmit the power-off information to the border router.
在本实施例中，所述A取值为2，即将所述第一类节点分为层级为偶数的所述第一类节点和层级为奇数的所述第一类节点；如附图4所示，In this embodiment, the value of A is 2, that is, the first type of nodes are divided into the first type of nodes with even levels and the first type of nodes with odd levels; as shown in FIG4,
在第一时隙T 0～T 1内，层级为偶数的所述第一类节点传输自身掉电信息至父级的所述第一类节点； In the first time slot T 0 -T 1 , the first-type node with an even-numbered level transmits its own power-off information to the first-type node of the parent level;
在第二时隙T 1～T 2内，层级为奇数的所述第一类节点传输自身掉电信息至父级的所述第一类节点； In the second time slot T 1 -T 2 , the first-type node with an odd level transmits its own power-off information to the first-type node of the parent level;
在第三时隙T 2～T 3内，所有未在所述第一时隙或所述第二时隙内上报成功的所述第一类节点传输自身掉电信息至父级的所述第一类节点。 In the third time slot T 2 -T 3 , all the first-type nodes that have not successfully reported in the first time slot or the second time slot transmit their own power-off information to the parent first-type node.
在上述实施例中，在Wi-SUN网络中第一类节点的储能电容所能支撑的时间为T z，那么存在T 3＜T z。 In the above embodiment, the time that the energy storage capacitor of the first type of node in the Wi-SUN network can support is T z , then T 3 <T z exists.
在上述实施例中，间隔跨级同步传输掉电信号是最大利用Wi-SUN网络的跨级传输相互不影响的特性，跨级的第一类节点在同一单播时隙上传掉电信息，加快Wi-SUN网络整体的掉电信息上报效率；而且实际Wi-SUN网络的层级不会设置太多，因此，对于某些因为网络其他因素导致第一类节点未能在对应的第一时隙或第二时隙进行上报，在第三时隙中，采用自由上报的方式传输掉电信息。In the above embodiment, the interval cross-level synchronous transmission of the power-off signal is to maximize the use of the cross-level transmission of the Wi-SUN network without affecting each other. The first-class nodes across the level upload the power-off information in the same unicast time slot, which speeds up the overall power-off information reporting efficiency of the Wi-SUN network. In addition, the actual Wi-SUN network will not have too many levels. Therefore, for some first-class nodes that fail to report in the corresponding first time slot or second time slot due to other network factors, the power-off information is transmitted in the third time slot in a free reporting manner.
在本实施例中，所述第二类节点采用广播方式向周围的所述第一类节点、所述第二类节点和边界路由器传输掉电信息，包括：In this embodiment, the second type of node transmits the power failure information to the surrounding first type of nodes, the second type of nodes and the border router in a broadcasting manner, including:
所述第二类节点将掉电信息上报到所述边界路由器；The second type of node reports the power failure information to the border router;
所述第二类节点将掉电信息传输到周围的所述第二类节点，接收到其他所述第二类节点的掉电信息的所述第二类节点将该掉电信息更新到自身节点的bitmap表中，并将自身节点的掉电信息上报到所述边界路由器；The second type of node transmits the power failure information to the surrounding second type of nodes. The second type of node that receives the power failure information of other second type of nodes updates the power failure information into the bitmap table of its own node, and reports the power failure information of its own node to the border router;
所述第二类节点将掉电信息传输到周围的所述第一类节点，接收到其他所述第二类节点的掉电信息的所述第一类节点将该掉电信息更新到自身节点的bitmap表中，并在特定时隙内将自身节点的掉电信息上报到所述边界路由器。The second type of node transmits power off information to the surrounding first type of nodes. The first type of node that receives power off information from other second type of nodes updates the power off information to its own node's bitmap table and reports the power off information of its own node to the border router within a specific time slot.
在上述实施例中，第二类节点采用广播方式传输掉电信息，因此在较长时间段内都能传输掉电信息，例如时间段为T d～T u，在Wi-SUN网络中第二类节点的储能电容所能支撑的时间为T z，那么存在T u＜T z。 In the above embodiment, the second type of node transmits power failure information in a broadcasting manner, and thus can transmit power failure information in a relatively long period of time. For example, the period of time is T d -T u , and the time that the energy storage capacitor of the second type of node in the Wi-SUN network can support is T z , then Tu <T z exists.
在上述实施例中，对所述第二类节点的广播方式采用多途径的传输途径，包括向周围其他的第二类节点和一级层级的第一类节点传输掉电信息；当然，由于第一类节点接收到第二类节点的掉电信息后也受规定单播时隙的约束，延时发送。第二类节点的掉电信息采用多途径的传输方式是冗余处理，为的是尽量确保边界路由器能收到全部节点的掉电信息。In the above embodiment, the broadcast mode of the second type of node adopts a multi-path transmission mode, including transmitting the power-off information to other surrounding second type nodes and the first type nodes of the first level; of course, since the first type node is also subject to the constraints of the specified unicast time slot after receiving the power-off information of the second type of node, it is delayed to send. The multi-path transmission mode of the power-off information of the second type of node is redundant processing, in order to ensure that the border router can receive the power-off information of all nodes as much as possible.
在本实施例中，若传输掉电信息的所述第二类节点接收到其他所述第二类节点广播的掉电信息中包含自身的掉线信息，则停止自身节点掉电信息的传输；也可有效降低Wi-SUN网络整体的数据传输量。In this embodiment, if the second type of node transmitting power-off information receives power-off information broadcast by other second type nodes including its own offline information, it stops transmitting its own node power-off information; it can also effectively reduce the overall data transmission volume of the Wi-SUN network.
本发明Wi-SUN网络提升掉电信息上报率的方法的多种机制并行的方式，能充分利用Wi-SUN网络的时隙资源，加快Wi-SUN网络整体的掉电信息上报效率，有效降低Wi-SUN网络整体的数据传输量，从而大幅度地提高Wi-SUN网络各个节点掉电信息的上报率。The method for improving the reporting rate of power failure information in a Wi-SUN network of the present invention uses multiple mechanisms in parallel, which can fully utilize the time slot resources of the Wi-SUN network, speed up the reporting efficiency of the overall power failure information of the Wi-SUN network, and effectively reduce the overall data transmission volume of the Wi-SUN network, thereby greatly improving the reporting rate of power failure information of each node in the Wi-SUN network.
实施例Example
结合附图2至附图4，本发明技术方案是一种Wi-SUN网络提升掉电信息上报率的系统，采用实施例1所述的Wi-SUN网络提升掉电信息上报率的方法，包括：In conjunction with Figures 2 to 4, the technical solution of the present invention is a system for improving the reporting rate of power failure information in a Wi-SUN network, and the method for improving the reporting rate of power failure information in a Wi-SUN network described in Example 1 includes:
第一类节点，根据节点所属的层级将所述第一类节点进行层级划分，所述层级相隔至少一级的所述第一类节点在同一时隙内传输掉电信息，在规定的时隙内采用单播方式传输掉电信息给父级的第一类节点；父级的第一类节点在规定的时隙内汇聚下属的第一类节点的掉电信息；The first-class nodes are hierarchically divided according to the hierarchies to which the nodes belong, and the first-class nodes separated by at least one level in the hierarchical level transmit power-off information in the same time slot, and transmit the power-off information to the first-class nodes of the parent level in a unicast manner in the prescribed time slot; the first-class nodes of the parent level aggregate the power-off information of the first-class nodes of the subordinate level in the prescribed time slot;
第二类节点，在规定的时隙内采用广播方式传输掉电信息给第一类节点、第二类节点和边界路由器；The second type of nodes transmit the power failure information to the first type of nodes, the second type of nodes and the border router by broadcasting in the specified time slot;
边界路由器，接收为一级节点的所述第一类节点和所述第二类节点的掉电信息；A border router receives power failure information of the first type of nodes and the second type of nodes which are first-level nodes;
管理系统，接收所述边界路由器汇聚的所有节点的掉电信息。The management system receives power failure information of all nodes aggregated by the border router.
在上述实施例中，如附图2至附图4所示，节点NODE1、节点NODE2、节点NODE3、节点NODE4、节点NODEN等表示不同的第一类节点；节点Leaf NODE1、节点Leaf NODE2和节点Leaf NODEN表示不同的第二类节点。节点NODE1和节点NODE2为第一层级的第一类节点；节点NODE3、节点NODE4和节点NODE5为第二层级的第一类节点；节点NODE6、节点NODE7和节点NODEN为第三层级的第一类节点。In the above embodiment, as shown in Figures 2 to 4, nodes NODE1, NODE2, NODE3, NODE4, NODEN, etc. represent different first-class nodes; nodes Leaf NODE1, Leaf NODE2, and Leaf NODEN represent different second-class nodes. Nodes NODE1 and NODE2 are first-class nodes of the first level; nodes NODE3, NODE4, and NODE5 are first-class nodes of the second level; nodes NODE6, NODE7, and NODEN are first-class nodes of the third level.
在上述实施例中，边界路由器即附图中的BR。In the above embodiment, the border router is BR in the figure.
实施例Example
结合附图6，本发明技术方案是一种电子设备，所述电子设备包括存储器和处理器，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时，使得所述处理器执行实施例1所述的Wi-SUN网络提升掉电信息上报率的方法。In conjunction with FIG6 , the technical solution of the present invention is an electronic device, the electronic device comprising a memory and a processor, the memory storing 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 failure information in a Wi-SUN network as described in Example 1.
实施例Example
一种存储介质，所述存储介质上存储有计算机程序指令，所述计算机程序指令被处理器执行时实现实施例1所述的Wi-SUN网络提升掉电信息上报率的方法。A storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method for improving a reporting rate of power failure information in a Wi-SUN network as described in Embodiment 1.
以上示意性的对本发明及其实施方式进行了描述，该描述没有限制性，附图中所示的也只是本发明的实施方式之一，实际的结构并不局限于此。所以，如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims (10)

  1. 一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，包括：A method for improving a power failure information reporting rate in a Wi-SUN network, characterized by comprising:
    根据节点的类型不同分为第一类节点和第二类节点，对于所述第一类节点采用单播方式传输掉电信息，对于所述第二类节点采用广播方式传输掉电信息；According to different types of nodes, they are divided into first-type nodes and second-type nodes. For the first-type nodes, power-off information is transmitted in unicast mode, and for the second-type nodes, power-off information is transmitted in broadcast mode.
    根据节点所属的层级将所述第一类节点进行层级划分，所述层级相隔至少一级的所述第一类节点在同一时隙内传输掉电信息；所述层级相邻的所述第一类节点在不同时隙内传输掉电信息；The first-type nodes are divided into levels according to the levels to which the nodes belong, and the first-type nodes separated by at least one level in the level transmit power-off information in the same time slot; and the first-type nodes adjacent in the level transmit power-off information in different time slots;
    层级同级的所述第一类节点在同一时隙内传输的掉电信息汇聚于同一父级的所述第一类节点；The power failure information transmitted by the first-type nodes at the same level in the same time slot is aggregated at the first-type nodes at the same parent level;
    边界路由器获取所述第一类节点和所述第二类节点传输的掉电信息并上报至管理系统。The border router obtains the power-off information transmitted by the first-type nodes and the second-type nodes and reports the information to the management system.
  2. 根据权利要求1所述的一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，所述第一类节点和所述第二类节点均产生包含掉电信息的bitmap表，所述bitmap表中的每一个bit位分别对应Wi-SUN网络中的一个节点；所述第一类节点或所述第二类节点在掉电时将所述bitmap表中对应的bit位置为1；所述第一类节点或所述第二类节点未掉电时所述bitmap表中对应的bit位置为0。According to claim 1, a method for improving a power failure information reporting rate in a Wi-SUN network is characterized in that the first type of node and the second type of 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 type of node or the second type of node is powered off, the corresponding bit position in the bitmap table is set to 1; when the first type of node or the second type of node is not powered off, the corresponding bit position in the bitmap table is set to 0.
  3. 根据权利要求2所述的一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，根据节点所属的层级将所述第一类节点划分为层级1～R，按相隔至少A级的所述第一类节点在同一时隙内传输掉电信息，其中R＞A；According to claim 2, a method for improving the reporting rate of power failure information in a Wi-SUN network is characterized in that the first type of nodes are divided into levels 1 to R according to the level to which the nodes belong, and the first type of nodes separated by at least A levels transmit the power failure information in the same time slot, where R>A;
    根据所述第一类节点所处的层级，选择不同的时隙；所述第一类节点的传输时隙为Different time slots are selected according to the level of the first type of nodes; the transmission time slot of the first type of nodes is
    T=T_EachLeveltime×(Level%A)+Random()%T_EachLeveltime；其中T_EachLeveltime为每一层级允许上报的时间段，Level为第一类节点的所属层级，Random()为随机函数；T=T_EachLeveltime×(Level%A)+Random()%T_EachLeveltime; T_EachLeveltime is the time period allowed for reporting at each level, Level is the level to which the first type of node belongs, and Random() is a random function;
    当所述第一类节点处于允许上报的时间段内时，所述第一类节点将掉电信息传输到该所述第一类节点的父级的所述第一类节点，父级的所述第一类节点将该掉电信息更新到自身节点的bitmap表中，并且父级的所述第一类节点发送确认信号ACK给传输掉电信息的所述第一类节点，表示收到所传输的掉电信息，收到确认信号ACK的所述第一类节点不再传输掉电信息；层级同级的所述第一类节点在允许上报的时间段内传输的掉电信息汇聚于同一父级的所述第一类节点；When the first-type node is within the time period in which reporting is allowed, the first-type node transmits power-off information to the first-type node of the parent of the first-type node, and the first-type node of the parent updates the power-off information to the bitmap table of its own node, and the first-type node of the parent sends a confirmation signal ACK to the first-type node that transmits the power-off information, indicating that the transmitted power-off information is received, and the first-type node that receives the confirmation signal ACK no longer transmits the power-off information; the power-off information transmitted by the first-type nodes of the same level in the time period in which reporting is allowed is aggregated to the first-type node of the same parent;
    以此类推，直至所有的所述第一类节点将掉电信息传输至所述边界路由器。The process is deduced in this way until all the first-type nodes transmit the power-off information to the border router.
  4. 根据权利要求3所述的一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，所述A取值为2，即将所述第一类节点分为层级为偶数的所述第一类节点和层级为奇数的所述第一类节点；According to claim 3, a method for improving the reporting rate of power failure information in a Wi-SUN network is characterized in that the value of A is 2, that is, the first type of nodes are divided into the first type of nodes with even levels and the first type of nodes with odd levels;
    在第一时隙内，层级为偶数的所述第一类节点传输自身掉电信息至父级的所述第一类节点；In the first time slot, the first-type node with an even-numbered level transmits its own power-off information to the first-type node of the parent level;
    在第二时隙内，层级为奇数的所述第一类节点传输自身掉电信息至父级的所述第一类节点；In the second time slot, the first-type node with an odd level transmits its own power-off information to the first-type node of the parent level;
    在第三时隙内，所有未在所述第一时隙或所述第二时隙内上报成功的所述第一类节点传输自身掉电信息至父级的所述第一类节点。In the third time slot, all the first-type nodes that have not successfully reported in the first time slot or the second time slot transmit their own power-off information to the parent first-type node.
  5. 根据权利要求2所述的一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，所述第二类节点采用广播方式向周围的所述第一类节点、所述第二类节点和边界路由器传输掉电信息，包括：According to claim 2, a method for improving the reporting rate of power failure information in a Wi-SUN network is characterized in that the second-type node transmits the power failure information to the surrounding first-type nodes, the second-type nodes and the border routers in a broadcast manner, comprising:
    所述第二类节点将掉电信息上报到所述边界路由器；The second type of node reports the power failure information to the border router;
    所述第二类节点将掉电信息传输到周围的所述第二类节点，接收到其他所述第二类节点的掉电信息的所述第二类节点将该掉电信息更新到自身节点的bitmap表中，并将自身节点的掉电信息上报到所述边界路由器；The second type of node transmits the power failure information to the surrounding second type of nodes. The second type of node that receives the power failure information of other second type of nodes updates the power failure information into the bitmap table of its own node, and reports the power failure information of its own node to the border router;
    所述第二类节点将掉电信息传输到周围的所述第一类节点，接收到其他所述第二类节点的掉电信息的所述第一类节点将该掉电信息更新到自身节点的bitmap表中，并在特定时隙内将自身节点的掉电信息上报到所述边界路由器。The second type of node transmits power off information to the surrounding first type of nodes. The first type of node that receives power off information from other second type of nodes updates the power off information to its own node's bitmap table and reports the power off information of its own node to the border router within a specific time slot.
  6. 根据权利要求5所述的一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，若传输掉电信息的所述第二类节点接收到其他所述第二类节点广播的掉电信息中包含自身的掉线信息，则停止自身节点掉电信息的传输。According to claim 5, a method for improving the reporting rate of power-off information in a Wi-SUN network is characterized in that if the second-type node that transmits the power-off information receives power-off information broadcast by other second-type nodes that includes its own offline information, the transmission of the power-off information of its own node is stopped.
  7. 根据权利要求1至6中任意一项所述的一种Wi-SUN网络提升掉电信息上报率的方法，其特征在于，所述第一类节点为一级节点且带有子节点的节点或不为一级节点的节点；所述第二类节点为一级节点且不带有子节点的节点。A method for improving a power failure information reporting rate in a Wi-SUN network according to any one of claims 1 to 6, characterized in that the first type of node is a first-level node and a node with a sub-node or a node that is not a first-level node; and the second type of node is a first-level node and a node without a sub-node.
  8. 一种Wi-SUN网络提升掉电信息上报率的系统，其特征在于，采用权利要求1至7中任意一项所述的Wi-SUN网络提升掉电信息上报率的方法，包括：A system for improving a power failure information reporting rate in a Wi-SUN network, characterized in that the method for improving a power failure information reporting rate in a Wi-SUN network according to any one of claims 1 to 7 is adopted, comprising:
    第一类节点，根据节点所属的层级将所述第一类节点进行层级划分，所述层级相隔至少一级的所述第一类节点在同一时隙内传输掉电信息，在规定的时隙内采用单播方式传输掉电信息给父级的第一类节点；父级的第一类节点在规定的时隙内汇聚下属的第一类节点的掉电信息；The first-class nodes are hierarchically divided according to the hierarchies to which the nodes belong, and the first-class nodes separated by at least one level in the hierarchical level transmit power-off information in the same time slot, and transmit the power-off information to the first-class nodes of the parent level in a unicast manner in the prescribed time slot; the first-class nodes of the parent level aggregate the power-off information of the first-class nodes of the subordinate level in the prescribed time slot;
    第二类节点，在规定的时隙内采用广播方式传输掉电信息给第一类节点、第二类节点和边界路由器；The second type of nodes transmit the power failure information to the first type of nodes, the second type of nodes and the border router by broadcasting in the specified time slot;
    边界路由器，接收为一级节点的所述第一类节点和所述第二类节点的掉电信息；A border router receives power failure information of the first type of nodes and the second type of nodes which are first-level nodes;
    管理系统，接收所述边界路由器汇聚的所有节点的掉电信息。The management system receives power failure information of all nodes aggregated by the border router.
  9. 一种电子设备，其特征在于，所述电子设备包括存储器和处理器，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时，使得所述处理器执行权利要求1至7中任意一项所述的Wi-SUN网络提升掉电信息上报率的方法。An electronic device, characterized in that the electronic device includes a memory and a processor, 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 failure information in a Wi-SUN network according to any one of claims 1 to 7.
  10. 一种存储介质，其特征在于，所述存储介质上存储有计算机程序指令，所述计算机程序指令被处理器执行时实现权利要求1至7中任意一项所述的Wi-SUN网络提升掉电信息上报率的方法。A storage medium, characterized in that computer program instructions are stored on the storage medium, and when the computer program instructions are executed by a processor, the method for improving the reporting rate of power failure information in a Wi-SUN network as described in any one of claims 1 to 7 is implemented.
PCT/CN2023/075578 2022-10-27 2023-02-13 Method and system for increasing power failure information reporting rate of wi-sun network, device, and medium WO2024087414A1 (en)

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