WO2018232964A1 - 一种控制边缘路由节点更新路由信息表的方法及设备 - Google Patents

一种控制边缘路由节点更新路由信息表的方法及设备 Download PDF

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Publication number
WO2018232964A1
WO2018232964A1 PCT/CN2017/098500 CN2017098500W WO2018232964A1 WO 2018232964 A1 WO2018232964 A1 WO 2018232964A1 CN 2017098500 W CN2017098500 W CN 2017098500W WO 2018232964 A1 WO2018232964 A1 WO 2018232964A1
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Prior art keywords
terminal device
internet
things data
information table
routing information
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PCT/CN2017/098500
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English (en)
French (fr)
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杜光东
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深圳市盛路物联通讯技术有限公司
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Publication of WO2018232964A1 publication Critical patent/WO2018232964A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/248—Connectivity information update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering 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 Internet of Things technologies, and in particular, to a method and a device for controlling an edge routing node to update a routing information table.
  • the terminal device for collecting the data content of the natural or monitored device and reporting the Internet of Things data including the data content is an important component in the network topology of the Internet of Things architecture, and therefore, the newly launched terminal device
  • the related information (such as the device identifier of the terminal device) needs to be updated in time to the edge routing node covering the newly launched terminal device to add the newly launched terminal device to the network topology of the Internet of Things architecture.
  • the edge routing node needs to update the pre-generated routing information table according to the newly-launched terminal device, which leads to frequent update of the routing information table. The problem.
  • the embodiment of the invention discloses a method and a device for controlling an edge routing node to update a routing information table, which can update the routing information table of the edge routing node according to the actual needs of the aggregation unit, and reduce the number of updates of the routing information table.
  • the first aspect of the embodiment of the present invention discloses a method for controlling an edge routing node to update a routing information table, where the method includes:
  • the edge routing node receives an indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type;
  • the edge routing node listens to the massive Internet of Things data reported by the mass terminal device in the wireless coverage area, and the IoT data includes the device type of the terminal device that reports the Internet of Things data, and the data content collected by the terminal device. And the device identifier of the terminal device;
  • the edge routing node determines whether the plurality of Internet of Things data exists.
  • the device type of the terminal device included is at least one Internet of Things data of the target device type, and when it is determined that the at least one Internet of Things data exists in the plurality of Internet of Things data, The device identifier of the terminal device included in the at least one Internet of Things data is added to the routing information table, and when it is determined that the at least one Internet of Things data does not exist in the plurality of Internet of Things data, the control does not update the Routing information table.
  • the method includes:
  • the edge routing node determines whether there is an offline device identifier of the terminal device in the routing information table, and when it is determined that the device identifier of the offline terminal device exists, deleting the offline terminal from the routing information table.
  • the method further includes:
  • the edge routing node determines whether there is a passing terminal device in the terminal device that reports the at least one Internet of Things data, and when it is determined that the terminal device that reports the at least one Internet of Things data does not exist in the terminal device, And triggering an operation of adding the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table;
  • the method further includes:
  • the edge routing node When it is determined that the terminal device that passes the at least one Internet of Things data is present, the edge routing node sends the terminal device that reports the at least one Internet of Things data except the terminal device that passes by The device identification of the external terminal device is added to the routing information table.
  • the method further includes:
  • the edge routing node counts the reporting frequency of the object network data reported by the target terminal device of the target device type, and the target terminal device in the terminal device corresponding to the device identifier stored in the routing information table, and reports the reporting frequency of the Internet of Things data to the target terminal device.
  • the terminal device that reports the frequency lower than the preset reporting frequency threshold sends a reporting frequency upward adjustment command.
  • the method further includes:
  • the edge routing node sets, in the routing information table, a reporting priority for the device identifier of the terminal device whose frequency is lower than the preset reporting frequency threshold in the target terminal device, where the reporting frequency is smaller, The higher the priority of the escalation.
  • a second aspect of the embodiments of the present invention discloses an edge routing node, where the edge routing node receives a single Element, listening unit, judgment unit, and control unit, where:
  • the receiving unit is configured to receive an indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type;
  • the listening unit is configured to listen to massive Internet of Things data reported by a mass terminal device in a wireless coverage area, and each of the Internet of Things data includes a device type of a terminal device that reports the Internet of Things data, and the terminal device collects Data content and device identification of the terminal device;
  • the determining unit is configured to determine, in the plurality of Internet of Things data, that the device identifier of the terminal device included in the massive Internet of Things data is not stored in the plurality of Internet of Things data in the pre-generated routing information table Whether there is at least one Internet of Things data of the device type of the included terminal device being the target device type;
  • the control unit is configured to: when the determining unit determines that the at least one Internet of Things data exists in the plurality of Internet of Things data, add the device identifier of the terminal device included in the at least one Internet of Things data to the In the routing information table, and when the determining unit determines that the at least one Internet of Things data does not exist in the plurality of Internet of Things data, the control does not update the routing information table.
  • the determining unit is further configured to determine whether the device identifier of the offline terminal device exists in the routing information table, and the offline terminal device a terminal device that does not report the Internet of Things data to the edge routing node within a preset time period;
  • the control unit is further configured to: when the determining unit determines that the device identifier of the offline terminal device exists in the routing information table, delete the device identifier of the offline terminal device from the routing information table .
  • the determining unit is further configured to: after determining that the at least one Internet of Things data exists in the plurality of Internet of Things data, Before the control unit adds the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table, determining whether there is a passing terminal device in the terminal device reporting the at least one Internet of Things data, when determining When the terminal device that reports the at least one Internet of Things data does not have the passing terminal device, triggering the control unit to perform the adding the device identifier of the terminal device included in the at least one Internet of Things data to the The operation in the routing information table;
  • the control unit is further configured to: when it is determined that the terminal device that reports the presence of the at least one Internet of Things data, the terminal device that reports the at least one Internet of Things data A device identifier of the terminal device other than the terminal device is added to the routing information table.
  • the edge routing node further includes a statistics unit and a sending unit, where:
  • the statistic unit is configured to report the reporting frequency of reporting the Internet of Things data of the target terminal device whose device type is the target device type in all the terminal devices corresponding to the device identifiers in the routing information table;
  • the sending unit is configured to send, according to the reporting frequency of the object network data reported by the target terminal device, the reporting frequency to the terminal device that reports the frequency lower than the preset reporting frequency threshold. Increase the command.
  • the edge routing node further includes a setting unit, where:
  • the setting unit is configured to set a reporting priority for the device identifier of the terminal device whose frequency is lower than the preset reporting frequency threshold in the target terminal device, where the reporting frequency is higher. Small, the set report priority is greater.
  • the embodiment of the invention has the following beneficial effects:
  • the edge routing node receives an indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type, and listens to the massive terminal device in the wireless coverage area.
  • the reported IoT data each IoT data includes the device type of the terminal device that reports the IoT data, the data content collected by the terminal device, and the device identifier of the terminal device, when the massive IoT data is included
  • the edge routing node determines whether the device type of the terminal device included in the plurality of Internet of Things data is at least one of the target device types.
  • the Internet of Things data when it is determined that the at least one Internet of Things data exists in the plurality of Internet of Things data, adding the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table, when determining a plurality of Internet of Things When the at least one IoT data does not exist in the data, the control is not updated.
  • the embodiment of the present invention can update the device identifier of the terminal device of the target device type that is newly uploaded and the device type is interested in the aggregation unit to the routing information table of the edge routing node according to the actual requirement of the aggregation unit, thereby reducing the routing information table.
  • the number of updates which in turn reduces the power consumption of edge routing nodes.
  • FIG. 1 is a schematic diagram of an Internet of Things architecture disclosed in an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for controlling an edge routing node to update a routing information table according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another method for controlling an edge routing node to update a routing information table according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an edge routing node according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another edge routing node according to an embodiment of the present invention.
  • the embodiment of the invention discloses a method and a device for controlling an edge routing node to update a routing information table, which can newly identify a device identifier of a terminal device of a target device type that is newly online and whose device type is of interest to the aggregation unit according to the actual needs of the aggregation unit. Updating the routing information table to the edge routing node reduces the number of updates to the routing information table, thereby reducing the power consumption of the edge routing node. The details are described below separately.
  • FIG. 1 is a schematic diagram of an Internet of Things architecture disclosed in an embodiment of the present invention.
  • the IoT architecture may include three layers: a terminal device layer, a routing node layer, and an aggregation layer according to functions.
  • the terminal device layer may include a mass-scale terminal device, such as a hygrometer, a smoke sensor, a ventilation device, a rain sensor, an irrigation valve, etc.;
  • the routing node layer may include a large number of routing nodes connected by a network, and the routing node may include a router.
  • the device, the repeater, the access point, and the like are not limited in the embodiment of the present invention, and in the routing node layer, the routing node capable of directly listening to the Internet of Things data reported by the terminal device in the terminal device layer may also be called an edge routing node.
  • the routing node can use any standard networking protocol, and the routing node can implement data parsing between different network standards; the aggregation layer can include a filtering gateway and a convergence unit, wherein the filtering gateway can pass through the Internet and the routing node layer.
  • the routing node can directly or introduce the communication connection; the aggregation unit can perform high-level management on each routing node of the routing node layer through the filtering gateway, thereby realizing the control of the data transmission frequency, the network topology and other networking functions; the aggregation unit can not only the massive terminal
  • the IoT data generated by the device is analyzed and determined.
  • the command can also be used to obtain information or configure terminal device parameters (at this time, the data transmission is directed to the terminal device); the aggregation unit can also introduce various services, from big data to social networks. Even from social tools "likes" to weather sharing.
  • each routing node can provide IoT data receiving and receiving services for a mass of terminal devices within its own wireless coverage, wherein each routing node has its own wireless coverage within each terminal device.
  • a wireless communication module can be built in, which enables each routing node to communicate wirelessly with each terminal device within its own wireless coverage via wireless network communication.
  • the wireless communication module built into the terminal device can input the upper frequency point 470MHz and the lower frequency point 510MHz during production, so that the wireless communication module can automatically define the communication frequency band as 470MHz ⁇ 510MHz, It complies with the provisions of China's SRRC standard; alternatively, it can input the upper frequency point of 868MHz and the lower frequency point of 908MHz, so that the wireless communication module can automatically define the communication frequency band as 868MHz to 908MHz to comply with the European ETSI standard; or, you can enter The frequency is 918MHz and the lower frequency is 928MHz, so the wireless communication module can automatically define the communication frequency band as 918MHz ⁇ 928MHz to meet the requirements of the US FCC standard.
  • the communication frequency band of the wireless communication module can also be defined as conforming to the Japanese ARIB standard or Canada.
  • the specification of the IC standard is not limited in the embodiment of the present invention.
  • the terminal device can use Frequency Division Multiple Access (FDMA), Frequency-Hopping Spread Spectrum (FHSS), and Dynamic Time Division Multiple Access (Dynamic Time Division Multiple Access). , DTDMA), and backtracking multiplexing (CSMA) are combined to solve the interference problem.
  • FDMA Frequency Division Multiple Access
  • FHSS Frequency-Hopping Spread Spectrum
  • CSMA Dynamic Time Division Multiple Access
  • FIG. 2 is a schematic flowchart diagram of a method for controlling an edge routing node to update a routing information table according to an embodiment of the present invention.
  • the method for controlling the edge routing node to update the routing information table may include the following operations:
  • the edge routing node receives an indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type.
  • the terminal device in the IoT architecture may be divided into terminal devices of different device types according to the functions thereof, or may be divided into terminal devices of different device types according to the device model, which is not limited in the embodiment of the present invention.
  • the edge routing node receives the indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the IoT data reported by the terminal device of the target device type, and may include:
  • the edge routing node sends a first interest request including the node identifier of the edge routing node to the filtering gateway, to trigger the filtering gateway to determine, according to the node identifier included in the first interest request, whether the edge routing node is an authorized edge routing node and is determining
  • the result is a second interest request that sends the node identifier including the edge routing node and the gateway identifier of the filtering gateway to the aggregation unit, wherein the first interest request and the second interest request are used to request the aggregation unit to indicate that they are interested
  • the Internet of Things data wherein after the convergence unit receives the second interest request, the aggregation unit performs identity authentication on the edge routing node and the filtering gateway according to the node identifier and the gateway identifier included in the second interest request, and when the identity authentication is passed An indication message returned to the filtering gateway;
  • the edge routing node receives the indication message delivered by the filtering gateway, and the indication message is used to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type.
  • the first interest request that the edge routing node sends to the filtering gateway, including the node identifier of the edge routing node, may include:
  • the edge forwarding node detects the load value of the wireless port between the interface and the filtering gateway, and determines whether the load value is less than the specified load threshold. If the load threshold is less than the specified load threshold, the node identifier including the edge forwarding node is sent to the filtering gateway through the wireless port.
  • the first interest request which can improve the reliability of the edge forwarding node successfully sending the first interest request.
  • the edge routing node listens to the massive Internet of Things data reported by the mass terminal device in the wireless coverage area, and each of the Internet of Things data includes a device type of the terminal device that reports the Internet of Things data, a data content collected by the terminal device, and the The device identifier where the terminal device is located.
  • the Internet of Things data detected by the edge routing node is reported by the terminal device in the wireless coverage area by using a local wireless device such as Wi-Fi, Bluetooth, or infrared.
  • step 203 When the device identifier of the terminal device included in the massive Internet of Things data is not stored in the plurality of Internet of Things data in the pre-generated routing information table, the edge routing node determines whether the plurality of Internet of Things data is included.
  • the device type of the terminal device is at least one IoT data of the target device type.
  • the routing information table stores the device identifier of the terminal device in the wireless coverage of the edge routing node, and may also store the IP address of the terminal device in the wireless coverage range.
  • the edge routing node adds the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table.
  • the edge routing node controls not updating the routing information table.
  • the method for controlling the edge routing node to update the routing information table may further include the following operations:
  • the edge routing node determines whether the device identifier of the offline terminal device exists in the routing information table. When it is determined that the device identifier of the offline terminal device exists, the device identifier of the offline terminal device is deleted from the routing information table, where offline
  • the terminal device is a terminal device that does not report the IoT data to the edge routing node within a preset time period or reports the terminal device whose IoT data reporting frequency is lower than the preset frequency threshold to the edge routing node, and the offline terminal device can A terminal device that includes a damaged terminal device and/or a terminal device that has been in a long-term shutdown state and a device identification table that has been added to a routing information table of a neighboring routing node.
  • the optional embodiment can delete the device identifier of the terminal device that has been offline from the routing information table in time, which is beneficial to the instant update of the Internet of Things topology in the Internet of Things architecture.
  • the edge routing node when there are multiple terminal devices whose device type is the target device type, the edge routing node may encapsulate the massive IoT data that is detected by the edge routing node into data elements and the data. The element is sent to the next hop routing node of the edge routing node, or the edge routing node may also encapsulate the IoT data of the device type included in the IoT data that is detected by the target device type into data elements and The data element is sent to the next hop routing node of the edge routing node.
  • the edge routing node may directly filter out the foregoing massive terminal device reporting.
  • the massive Internet of Things data is not limited in the embodiment of the present invention.
  • the method for implementing the control edge routing node to update the routing information table described in FIG. 2 can update the device identifier of the terminal device of the device type that is newly online and the device type is interested in the aggregation unit to the edge route according to the actual needs of the aggregation unit.
  • the routing information table of the node reduces the number of updates of the routing information table, thereby reducing the power consumption of the edge routing node.
  • FIG. 3 is a schematic flowchart diagram of another method for controlling an edge routing node to update a routing information table according to an embodiment of the present invention.
  • the method for controlling the edge routing node to update the routing information table may include the following operations:
  • the edge routing node receives an indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type.
  • the terminal device in the IoT architecture may be divided into terminal devices of different device types according to the functions thereof, or may be divided into terminal devices of different device types according to the device model, which is not limited in the embodiment of the present invention.
  • the edge routing node listens to the massive IoT data reported by the mass terminal device in the wireless coverage area, and each IoT data includes a device type of the terminal device that reports the IoT data, a data content collected by the terminal device, and the The device identifier where the terminal device is located.
  • step 303 When the device identifier of the terminal device included in the massive Internet of Things data is not stored in the plurality of Internet of Things data in the pre-generated routing information table, the edge routing node determines whether the plurality of Internet of Things data is included.
  • the device type of the terminal device is at least one IoT data of the target device type.
  • the edge routing node determines whether there is a passing terminal device in the terminal device that reports the at least one Internet of Things data. When the determination result in step 304 is negative, step 305 is triggered, and when the determination result in step 304 is YES, the trigger is triggered. Go to step 306.
  • the edge routing node may determine, by the terminal device that reports the at least one Internet of Things data, that the terminal device that has passed through may include:
  • the edge routing node sends a query request to the neighboring routing node in the wireless coverage area, where the query request is used to request the neighboring routing node to query whether the at least one Internet of Things data is reported in the routing information table stored by the neighboring routing node. a device identifier of one of the terminal devices in the terminal device;
  • the edge routing node receives the query response returned by the neighboring routing node, and when one of the query responses indicates that the routing information table stored by the corresponding neighboring routing node stores one of the terminal devices that report the at least one Internet of Things data
  • the device is identified, it is determined that there is a terminal device that has passed through the terminal device that reports the at least one Internet of Things data, and any one of the query responses indicates that the at least one Internet of Things is not stored in the routing information table stored by the corresponding neighboring routing node.
  • the device identifier of any one of the terminal devices of the data is determined, it is determined that there is no passing terminal device in the terminal device that reports the at least one Internet of Things data.
  • the edge routing node adds the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table.
  • the edge routing node adds, to the foregoing routing information table, a device identifier of the terminal device except the terminal device that has passed through the terminal device that reports the at least one Internet of Things data.
  • the edge routing node controls not updating the routing information table.
  • the method for controlling the edge routing node to update the routing information table may further include the following operations:
  • the edge routing node determines whether the device identifier of the offline terminal device exists in the routing information table. When it is determined that the device identifier of the offline terminal device exists, the device identifier of the offline terminal device is deleted from the routing information table, where offline
  • the terminal device is a terminal device that does not report the IoT data to the edge routing node within a preset time period or reports the terminal device whose IoT data reporting frequency is lower than the preset frequency threshold to the edge routing node, and the offline terminal device can A terminal device that includes a damaged terminal device and/or a terminal device and/or device identification that has been in a long-term shutdown state has been added to a routing information table of a neighboring routing node.
  • the optional embodiment can delete the device identifier of the terminal device that has been offline from the routing information table in time, which is beneficial to the instant update of the Internet of Things topology in the Internet of Things architecture.
  • the method for controlling the edge routing node to update the routing information table may further include the following operations:
  • the edge routing node counts the reporting frequency of the object network data reported by the target terminal device of the device type whose device type is the device type corresponding to the device identifiers in the routing information table, and reports the frequency to the target terminal device is lower than the pre-reporting frequency.
  • the terminal device that reports the frequency threshold sends a reporting frequency up-regulation command. This can improve the reliability of the Internet of Things data reported by the terminal device that the aggregation unit receives the geographic location of interest.
  • the method for controlling the edge routing node to update the routing information table may further include the following operations:
  • the edge routing node sets, in the foregoing routing information table, a reporting priority for the device identifier of the terminal device whose frequency is lower than the preset reporting frequency threshold in the target terminal device, where the reporting frequency is smaller, the set reporting priority is set.
  • the bigger In this way, when receiving the Internet of Things data reported by the terminal device with a lower reporting frequency, the part of the Internet of Things data can be preferentially reported according to the priority set for the Internet of Things data, or the forwarding path with higher reliability can be selected preferentially for the part of the Internet of Things data. Further, the reliability of the IoT data reported by the aggregation unit to the terminal device that is interested in and reported by the aggregation unit is further improved.
  • the method for implementing the control edge routing node to update the routing information table described in FIG. 3 can be implemented according to The actual requirement of the aggregation unit is to update the device identifier of the terminal device of the target device type that is newly online and whose device type is interested in the aggregation unit to the routing information table of the edge routing node, thereby reducing the number of updates of the routing information table, thereby reducing the edge.
  • the power consumption of the routing node facilitates the maintenance of the network topology in the IoT architecture, and when the device identifier of the terminal device of the target device type that is newly online and whose device type is interested in the aggregation unit is updated to the routing information table of the edge routing node Automatically filters out temporary devices that pass through, which can further reduce the number of updates to the routing information table and the content that needs to be updated.
  • FIG. 4 is a schematic structural diagram of an edge routing node according to an embodiment of the present invention.
  • the edge routing node 400 can include a receiving unit 401, a listening unit 402, a determining unit 403, and a control unit 404, where:
  • the receiving unit 401 is configured to receive an indication message that is sent by the filtering gateway to indicate that the aggregation unit is interested in the Internet of Things data reported by the terminal device of the target device type.
  • the listening unit 402 is configured to listen to the massive Internet of Things data reported by the mass terminal device in the wireless coverage of the edge routing node 400.
  • Each IoT data may include the device type of the terminal device that reports the Internet of Things data, and the terminal device collects The data content and the device identification of the terminal device.
  • the determining unit 403 is configured to determine whether the plurality of Internet of Things data is included in the plurality of Internet of Things data when the device identifier of the terminal device included in the mass Internet of Things data is not stored in the plurality of Internet of Things data in the pre-generated routing information table.
  • the device type of the terminal device is at least one Internet of Things data of the above target device type.
  • the control unit 404 is configured to: when the determining unit 403 determines that the at least one Internet of Things data exists in the plurality of Internet of Things data, add the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table, and When the determining unit 403 determines that the at least one Internet of Things data does not exist in the plurality of Internet of Things data, the control unit 403 controls not to update the routing information table.
  • the edge routing node 400 described in FIG. 4 can update the device identifier of the terminal device of the target device type that is newly uploaded and the device type is interested in the aggregation unit to the routing information table of the edge routing node according to the actual needs of the aggregation unit.
  • the number of updates of the routing information table is reduced, thereby reducing the power consumption of the edge routing node.
  • the determining unit 403 is further configured to determine whether the device identifier of the offline terminal device exists in the routing information table, where the offline terminal device does not route to the edge within a preset time period.
  • the terminal device reporting the Internet of Things data by the node 400 or reporting to the edge routing node 400
  • the terminal device whose reporting frequency of the Internet of Things data is lower than the preset frequency threshold, and the offline terminal device may include the terminal device that has been damaged and/or the terminal device that has been in the long-time off state, and the device identifier has been added to the adjacent route.
  • the terminal device of the routing information table of the node may include the terminal device that has been damaged and/or the terminal device that has been in the long-time off state, and the device identifier has been added to the adjacent route.
  • the control unit 404 is further configured to: when the determining unit 403 determines that the device identifier of the offline terminal device exists, delete the device identifier of the offline terminal device from the routing information table.
  • edge routing node 400 described in FIG. 4 can delete the device identifier of the terminal device that is already offline in the routing information table in time, which is beneficial to the maintenance of the Internet of Things topology in the Internet of Things architecture.
  • the determining unit 403 is further configured to: after determining that the at least one Internet of Things data exists in the plurality of Internet of Things data, and adding, by the control unit 404, the device identifier of the terminal device included in the at least one Internet of Things data to Before the foregoing routing information table, determining whether there is a passing terminal device in the terminal device that reports the at least one Internet of Things data, and triggering control when it is determined that there is no passing terminal device in the terminal device reporting the at least one Internet of Things data
  • the unit 404 performs the above-described operation of adding the device identifier of the terminal device included in the at least one Internet of Things data to the routing information table.
  • the control unit 404 is further configured to: when the determining unit 403 determines that the terminal device that reports the passing of the at least one Internet of Things data, the terminal device that reports the at least one Internet of Things data, except the passing terminal device The device identification of the terminal device other than the terminal device is added to the above routing information table.
  • edge routing node 400 described in FIG. 4 can also filter out the newly passed terminal device in the terminal device whose geographical location is the target geographical location of interest to the aggregation unit, and reduce the edge routing node 400. Updates when updating the routing information table.
  • FIG. 5 is a schematic structural diagram of another edge routing node according to an embodiment of the present invention. among them:
  • the statistic unit 405 is configured to report the reporting frequency of the Internet of Things data reported by the target terminal device whose device type is the target device type in all the terminal devices corresponding to the device identifiers in the routing information table.
  • the sending unit 406 is configured to send, according to the reporting frequency of the target terminal device, the reporting terminal, a reporting frequency up-control command to the terminal device whose frequency is lower than the preset reporting frequency threshold.
  • the setting unit 407 is configured to set, in the routing information table, a reporting priority for the device identifier of the terminal device whose frequency is lower than the preset reporting frequency threshold in the target terminal device, where the reporting frequency is smaller, the set reporting is performed. The greater the priority.
  • the edge routing node 400 that implements the implementation of FIG. 5 can send a reporting frequency up-regulation command to the terminal device with a low reporting frequency of the Internet of Things data reported to the terminal device of the target device type whose device type is the aggregation unit, and for these terminals.
  • the device identifier of the device sets a high reporting priority, which improves the reliability of the IoT data reported by the aggregation unit to the terminal device in the geographic location of interest.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • OTPROM One-Time Programmable Read-Only Memory
  • EEPROM Electronically-Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory

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Abstract

一种控制边缘路由节点更新路由信息表的方法及设备，该方法包括：边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息，并侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，当该海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，边缘路由节点判断该多个物联网数据中是否存在包括的终端设备的设备类型为目标设备类型的至少一个物联网数据，若是，则将该至少一个物联网数据包括的终端设备的设备标识添加至路由信息表中，若否，则控制不更新路由信息表。实施本发明实施例能够减少路由信息表的更新次数。

Description

一种控制边缘路由节点更新路由信息表的方法及设备 技术领域
本发明涉及物联网技术领域，尤其涉及一种控制边缘路由节点更新路由信息表的方法及设备。
背景技术
在物联网架构中，用于采集自然界或被监测设备的数据内容并上报包括该数据内容的物联网数据的终端设备是物联网架构的网络拓扑中的重要组成部分，因此，新上线的终端设备的相关信息(如终端设备的设备标识等)需要及时的更新至覆盖该新上线的终端设备的边缘路由节点中，以将新上线的终端设备添加至物联网架构的网路拓扑中。在实际应用中，每当边缘路由节点的无线覆盖范围内存在新上线的终端设备时，边缘路由节点均需要根据新上线的终端设备更新预先生成的路由信息表，这导致了路由信息表更新频繁的问题。
发明内容
本发明实施例公开了一种控制边缘路由节点更新路由信息表的方法及设备，能够根据汇聚单元的实际需求更新边缘路由节点的路由信息表，减少了路由信息表的更新次数。
本发明实施例第一方面公开了一种控制边缘路由节点更新路由信息表的方法，所述方法包括：
所述边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息；
所述边缘路由节点侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个所述物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备的设备标识；
当所述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，所述边缘路由节点判断所述多个物联网数据中是否存在包括的终端设备的设备类型为所述目标设备类型的至少一个物联网数据，当判断出所述多个物联网数据中存在所述至少一个物联网数据时，将 所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中，当判断出所述多个物联网数据中不存在所述至少一个物联网数据时，控制不更新所述路由信息表。
作为一种可选的实施方式，在本发明实施例第一方面中，所述方法包括：
所述边缘路由节点判断所述路由信息表中是否存在离线的终端设备的设备标识，当判断出存在所述离线的终端设备的设备标识时，从所述路由信息表中删除所述离线的终端设备的设备标识，所述离线的终端设备为在预设时间段内未向所述边缘路由节点上报物联网数据的终端设备。
作为一种可选的实施方式，在本发明实施例第一方面中，在判断出所述多个物联网数据中存在所述至少一个物联网数据之后，以及所述路由边缘节点将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中之前，所述方法还包括：
所述边缘路由节点判断上报所述至少一个物联网数据的终端设备中是否存在路过的终端设备，当判断出上报所述至少一个物联网数据的终端设备中不存在所述路过的终端设备时，触发执行所述将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中的操作；
所述方法还包括：
当判断出上报所述至少一个物联网数据的终端设备中存在所述路过的终端设备时，所述边缘路由节点将上报所述至少一个物联网数据的终端设备中除所述路过的终端设备之外的终端设备的设备标识添加至所述路由信息表中。
作为一种可选的实施方式，在本发明实施例第一方面中，所述方法还包括：
所述边缘路由节点统计所述路由信息表中存储的设备标识对应的所有终端设备中设备类型为所述目标设备类型的目标终端设备上报物联网数据的上报频率，并向所述目标终端设备中上报频率低于预设上报频率阈值的终端设备发送上报频率上调指令。
作为一种可选的实施方式，在本发明实施例第一方面中，所述方法还包括：
所述边缘路由节点在所述路由信息表中为所述目标终端设备中上报频率低于所述预设上报频率阈值的终端设备的设备标识设定上报优先级，其中，上报频率越小，设定的上报优先级越大。
本发明实施例第二方面公开了一种边缘路由节点，所述边缘路由节点接收单 元、侦听单元、判断单元以及控制单元，其中：
所述接收单元，用于接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息；
所述侦听单元，用于侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个所述物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备的设备标识；
所述判断单元，用于当所述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，判断所述多个物联网数据中是否存在包括的终端设备的设备类型为所述目标设备类型的至少一个物联网数据；
所述控制单元，用于当所述判断单元判断出所述多个物联网数据中存在所述至少一个物联网数据时，将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中，以及当所述判断单元判断出所述多个物联网数据中不存在所述至少一个物联网数据时，控制不更新所述路由信息表。
作为一种可选的实施方式，在本发明实施例第二方面中，所述判断单元，还用于判断所述路由信息表中是否存在离线的终端设备的设备标识，所述离线的终端设备为在预设时间段内未向所述边缘路由节点上报物联网数据的终端设备；
所述控制单元，还用于当所述判断单元判断出所述路由信息表中存在所述离线的终端设备的设备标识时，从所述路由信息表中删除所述离线的终端设备的设备标识。
作为一种可选的实施方式，在本发明实施例第二方面中，所述判断单元，还用于在判断出所述多个物联网数据中存在所述至少一个物联网数据之后以及在所述控制单元将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中之前，判断上报所述至少一个物联网数据的终端设备中是否存在路过的终端设备，当判断出上报所述至少一个物联网数据的终端设备中不存在所述路过的终端设备时，触发所述控制单元执行所述将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中的操作；
所述控制单元，还用于当判断出上报所述至少一个物联网数据的终端设备中存在所述路过的终端设备时，将上报所述至少一个物联网数据的终端设备中除所述路过的终端设备之外的终端设备的设备标识添加至所述路由信息表中。
作为一种可选的实施方式，在本发明实施例第二方面中，所述边缘路由节点还包括统计单元以及发送单元，其中：
所述统计单元，用于统计所述路由信息表中存储的设备标识对应的所有终端设备中设备类型为所述目标设备类型的目标终端设备上报物联网数据的上报频率；
所述发送单元，用于根据所述统计单元统计出的所述目标终端设备上报物联网数据的上报频率，向所述目标终端设备中上报频率低于预设上报频率阈值的终端设备发送上报频率上调指令。
作为一种可选的实施方式，在本发明实施例第二方面中，所述边缘路由节点还包括设定单元，其中：
所述设定单元，用于在所述路由信息表中为所述目标终端设备中上报频率低于所述预设上报频率阈值的终端设备的设备标识设定上报优先级，其中，上报频率越小，设定的上报优先级越大。
与现有技术相比，本发明实施例具有以下有益效果：
本发明实施例中，边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息，并侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备的设备标识，当该海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，边缘路由节点判断该多个物联网数据中是否存在包括的终端设备的设备类型为目标设备类型的至少一个物联网数据，当判断出多个物联网数据中存在该至少一个物联网数据时，将该至少一个物联网数据包括的终端设备的设备标识添加至路由信息表中，当判断出多个物联网数据中不存在该至少一个物联网数据时，控制不更新路由信息表。实施本发明实施例能够根据汇聚单元的实际需求将新上线的且设备类型为汇聚单元感兴趣的目标设备类型的终端设备的设备标识更新至边缘路由节点的路由信息表，减少了路由信息表的更新次数，进而减少了边缘路由节点的功耗。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使 用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例公开的一种物联网架构的示意图；
图2是本发明实施例公开的一种控制边缘路由节点更新路由信息表的方法的流程示意图；
图3是本发明实施例公开的另一种控制边缘路由节点更新路由信息表的方法的流程示意图；
图4是本发明实施例公开的一种边缘路由节点的结构示意图；
图5是本发明实施例公开的另一种边缘路由节点的结构示意图。
具体实施方式
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做出创造性劳动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。
本发明实施例公开了一种控制边缘路由节点更新路由信息表的方法及设备，能够根据汇聚单元的实际需求将新上线的且设备类型为汇聚单元感兴趣的目标设备类型的终端设备的设备标识更新至边缘路由节点的路由信息表，减少了路由信息表的更新次数，进而减少了边缘路由节点的功耗。以下分别进行详细说明。
为了更好地理解本发明实施例，下面先对本发明实施例公开的一种物联网架构进行介绍。请参阅图1，图1是本发明实施例公开的一种物联网架构的示意图。如图1所示，该物联网架构按照功能划分可以包括终端设备层、路由节点层以及汇聚层三个层。其中，终端设备层可以包括海量规模的终端设备，例如湿度计、烟感器、通风设备、雨量传感器、灌溉阀等等；路由节点层可以包括网络连接的大量的路由节点，路由节点可以包括路由器、中继器、接入点等设备，本发明实施例不作限定，且在路由节点层中，能够直接侦听终端设备层中的终端设备上报的物联网数据的路由节点又可以叫做边缘路由节点；路由节点可以使用任何标准的组网协议，而且路由节点可以在不同的网络制式之间实现数据解析；汇聚层可以包括过滤网关和汇聚单元，其中，过滤网关可以通过互联网与路由节点层的各 个路由节点直接或简介通讯连接；汇聚单元可以通过过滤网关对路由节点层的各个路由节点进行高层管理，从而实现数据传输频率、网络拓扑以及其他组网功能的控制；汇聚单元不仅可以对海量终端设备产生的物联网数据进行分析和决策，还可以通过发指令去获取信息或者配置终端设备参数(此时数据的传输指向终端设备)；汇聚单元还可以引入各种业务，从大数据到社交网络、甚至从社交工具“点赞”到天气分享等。在图1所示的物联网架构中，每一个路由节点可以为其自身无线覆盖范围内的海量终端设备提供物联网数据收发服务，其中，每一路由节点自身无线覆盖范围内的每一个终端设备可以内置有无线通讯模块，这使得每一路由节点可以通过无线网络通讯方式与自身无线覆盖范围内的每一个终端设备进行无线通讯。在图1所示的物联网架构中，终端设备内置的无线通讯模块在生产时，可以输入上频点470MHz，下频点510MHz，这样无线通讯模块可以自动将通讯频段定义为470MHz～510MHz，以符合中国SRRC标准的规定；或者，也可以输入上频点868MHz，下频点908MHz，这样无线通讯模块可以自动将通讯频段定义为868MHz～908MHz，以符合欧洲ETSI标准的规定；或者，可以输入上频点918MHz，下频点928MHz，这样无线通讯模块可以自动将通讯频段定义为918MHz～928MHz，以符合美国FCC标准的规定；或者，无线通讯模块的通讯频段也可以定义为符合日本ARIB标准或加拿大IC标准的规定，本发明实施例不作限定。在图1所示的物联网架构中，终端设备可以采用频分复用(Frequency Division Multiple Access，FDMA)、跳频(Frequency-Hopping Spread Spectrum，FHSS)、动态时分复用(Dynamic Time Division Multiple Access，DTDMA)、退避复用(CSMA)相结合的方法来解决干扰问题。
实施例一
请参阅图2，图2是本发明实施例公开的一种控制边缘路由节点更新路由信息表的方法的流程示意图。如图2所示，该控制边缘路由节点更新路由信息表的方法可以包括如下操作：
201、边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息。
本发明实施例中，物联网架构中的终端设备可以按照其功能划分成不同设备类型的终端设备，也可以按照其设备型号划分成不同设备类型的终端设备，本发明实施例不作限定。
本发明实施例中，边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息可以包括：
边缘路由节点向过滤网关发送包括边缘路由节点的节点标识的第一兴趣请求，以触发过滤网关根据第一兴趣请求中包括的节点标识判断该边缘路由节点是否为已授权的边缘路由节点且在判断结果为是时向汇聚单元发送包括边缘路由节点的节点标识以及过滤网关的网关标识的第二兴趣请求，其中，该第一兴趣请求以及该第二兴趣请求用于请求汇聚单元指示其感兴趣的物联网数据，其中，在汇聚单元接收到该第二兴趣请求之后，由汇聚单元根据该第二兴趣请求包括的节点标识以及网关标识对边缘路由节点以及过滤网关进行身份认证且在身份认证通过时向过滤网关返回的指示消息；
边缘路由节点接收过滤网关下发的指示消息，该指示消息用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣。
其中，边缘路由节点向过滤网关发送包括边缘路由节点的节点标识的第一兴趣请求可以包括：
边缘转发节点检测其与过滤网关之间的无线端口的负荷值并判断该负荷值是否小于指定负荷阈值，如果小于该指定负荷阈值，则通过该无线端口向过滤网关发送包括边缘转发节点的节点标识的第一兴趣请求，这样能够提高边缘转发节点成功发送第一兴趣请求的可靠性。
202、边缘路由节点侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备所处的设备标识。
本发明实施例中，边缘路由节点侦听到的物联网数据是由其无线覆盖范围内的终端设备利用本地Wi-Fi、蓝牙、红外等无线方式进行上报的。
203、当上述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，边缘路由节点判断该多个物联网数据中是否存在包括的终端设备的设备类型为上述目标设备类型的至少一个物联网数据，当步骤203的判断结果为是时，触发执行步骤204，当步骤203的判断结果为否时，触发执行步骤205。
本发明实施例中，该路由信息表中存储有边缘路由节点的无线覆盖范围内的终端设备的设备标识，还可以存储有其无线覆盖范围内的终端设备的IP地址。
204、边缘路由节点将上述至少一个物联网数据包括的终端设备的设备标识添加至上述路由信息表中。
205、边缘路由节点控制不更新上述路由信息表。
在一个可选的实施例中，该控制边缘路由节点更新路由信息表的方法还可以包括以下操作：
边缘路由节点判断上述路由信息表中是否存在离线的终端设备的设备标识，当判断出存在离线的终端设备的设备标识时，从上述路由信息表中删除离线的终端设备的设备标识，其中，离线的终端设备为在预设时间段内未向边缘路由节点上报物联网数据的终端设备或者向边缘路由节点上报物联网数据的上报频率低于预设频率阈值的终端设备，且离线的终端设备可以包括已经损坏的终端设备和/或已经处于长时间关闭状态的终端设备以及设备标识已经被添加至相邻路由节点的路由信息表的终端设备。
该可选的实施例能够及时将已经离线的终端设备的设备标识从路由信息表中删除，有利于物联网架构中物联网拓扑结构的即时更新。
本发明实施例中，当上述海量终端设备中存在设备类型为上述目标设备类型的多个终端设备时，边缘路由节点可以将其侦听到的上述海量物联网数据封装成数据元并将该数据元发送至该边缘路由节点的下一跳路由节点，或者，边缘路由节点也可以将其侦听到的物联网数据中包括的设备类型为上述目标设备类型的物联网数据封装成数据元并将该数据元发送至该边缘路由节点的下一跳路由节点；当上述海量终端设备中不存在设备类型为上述目标设备类型的多个终端设备时，边缘路由节点可以直接过滤掉上述海量终端设备上报的海量物联网数据，本发明实施例不做限定。
可见，实施图2所描述的控制边缘路由节点更新路由信息表的方法能够根据汇聚单元的实际需求将新上线的且设备类型为汇聚单元感兴趣的设备类型的终端设备的设备标识更新至边缘路由节点的路由信息表，减少了路由信息表的更新次数，进而减少了边缘路由节点的功耗。
实施例二
请参阅图3，图3是本发明实施例公开的另一种控制边缘路由节点更新路由信息表的方法的流程示意图。如图3所示，该控制边缘路由节点更新路由信息表的方法可以包括以下操作：
301、边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息。
本发明实施例中，物联网架构中的终端设备可以按照其功能划分成不同设备类型的终端设备，也可以按照其设备型号划分成不同设备类型的终端设备，本发明实施例不作限定。
302、边缘路由节点侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备所处的设备标识。
303、当上述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，边缘路由节点判断该多个物联网数据中是否存在包括的终端设备的设备类型为上述目标设备类型的至少一个物联网数据，当步骤303的判断结果为是时，触发执行步骤304，当步骤303的判断结果为否时，触发执行步骤307。
304、边缘路由节点判断上报上述至少一个物联网数据的终端设备中是否存在路过的终端设备，当步骤304的判断结果为否时，触发执行步骤305，当步骤304的判断结果为是时，触发执行步骤306。
本发明实施例中，边缘路由节点判断上报上述至少一个物联网数据的终端设备中是否存在路过的终端设备可以包括：
边缘路由节点向其无线覆盖范围内的相邻路由节点发送查询请求，该查询请求用于请求相邻路由节点查询相邻路由节点存储的路由信息表中是否存储有上报上述至少一个物联网数据的终端设备中的其中一个终端设备的设备标识；
边缘路由节点接收相邻路由节点返回的查询响应，当其中一个查询响应指示对应的相邻路由节点存储的路由信息表中存储有上报上述至少一个物联网数据的终端设备中的其中一个终端设备的设备标识时，确定上报上述至少一个物联网数据的终端设备中存在路过的终端设备，当任意一个查询响应都指示对应的相邻路由节点存储的路由信息表中未存储有上报上述至少一个物联网数据的终端设备中任意一个终端设备的设备标识时，确定上报上述至少一个物联网数据的终端设备中不存在路过的终端设备。
305、边缘路由节点将上述至少一个物联网数据包括的终端设备的设备标识添加至上述路由信息表中。
306、边缘路由节点将上报上述至少一个物联网数据的终端设备中除路过的终端设备之外的终端设备的设备标识添加至上述路由信息表中。
307、边缘路由节点控制不更新上述路由信息表。
在一个可选的实施例中，该控制边缘路由节点更新路由信息表的方法还可以包括以下操作：
边缘路由节点判断上述路由信息表中是否存在离线的终端设备的设备标识，当判断出存在离线的终端设备的设备标识时，从上述路由信息表中删除离线的终端设备的设备标识，其中，离线的终端设备为在预设时间段内未向边缘路由节点上报物联网数据的终端设备或者向边缘路由节点上报物联网数据的上报频率低于预设频率阈值的终端设备，且离线的终端设备可以包括已经损坏的终端设备和/或已经处于长时间关闭状态的终端设备和/或设备标识已经被添加至相邻路由节点的路由信息表的终端设备。
该可选的实施例能够及时将已经离线的终端设备的设备标识从路由信息表中删除，有利于物联网架构中物联网拓扑结构的即时更新。
在另一个可选的实施例中，该控制边缘路由节点更新路由信息表的方法还可以包括以下操作：
边缘路由节点统计上述路由信息表中存储的设备标识对应的所有终端设备中设备类型为上述目标设备类型的目标终端设备上报物联网数据的上报频率，并向该目标终端设备中上报频率低于预设上报频率阈值的终端设备发送上报频率上调指令。这样可以提高汇聚单元接收到其感兴趣的地理位置的终端设备上报的物联网数据的可靠性。
在该另一种可选的实施例中，进一步可选的，该控制边缘路由节点更新路由信息表的方法还可以包括以下操作：
边缘路由节点在上述路由信息表中为上述目标终端设备中上报频率低于上述预设上报频率阈值的终端设备的设备标识设定上报优先级，其中，上报频率越小，设定的上报优先级越大。这样能够在接收到上报频率较低的终端设备上报的物联网数据时能够根据为其设定的优先级优先上报该部分物联网数据或者优先为该部分物联网数据选择可靠性较高的转发路径，进一步提高了汇聚单元接收到其感兴趣且上报频率较低的终端设备上报的物联网数据的可靠性。
可见，实施图3所描述的控制边缘路由节点更新路由信息表的方法能够根据 汇聚单元的实际需求将新上线的且设备类型为汇聚单元感兴趣的目标设备类型的终端设备的设备标识更新至边缘路由节点的路由信息表，减少了路由信息表的更新次数，进而减少了边缘路由节点的功耗，方便物联网架构中网络拓扑的维护，且在将新上线的且设备类型为汇聚单元感兴趣的目标设备类型的终端设备的设备标识更新至边缘路由节点的路由信息表时，自动过滤掉临时路过的终端设备，这样能够进一步减少路由信息表的更新次数以及需要更新的内容。
实施例三
请参阅图4，图4是本发明实施例公开的一种边缘路由节点的结构示意图。如图4所示，该边缘路由节点400可以包括接收单元401、侦听单元402、判断单元403以及控制单元404，其中：
接收单元401用于接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息。
侦听单元402用于侦听边缘路由节点400无线覆盖范围内的海量终端设备上报的海量物联网数据，每个物联网数据可以包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备的设备标识。
判断单元403用于当上述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，判断上述多个物联网数据中是否存在包括的终端设备的设备类型为上述目标设备类型的至少一个物联网数据。
控制单元404用于当判断单元403判断出上述多个物联网数据中存在上述至少一个物联网数据时，将上述至少一个物联网数据包括的终端设备的设备标识添加至路由信息表中，以及当判断单元403判断出上述多个物联网数据中不存在上述至少一个物联网数据时，控制不更新上述路由信息表。
可见，实施图4所描述的边缘路由节点400能够根据汇聚单元的实际需求将新上线的且设备类型为汇聚单元感兴趣的目标设备类型的终端设备的设备标识更新至边缘路由节点的路由信息表，减少了路由信息表的更新次数，进而减少了边缘路由节点的功耗。
在一个可选的实施例中，判断单元403还可以用于判断上述路由信息表中是否存在离线的终端设备的设备标识，其中，该离线的终端设备为在预设时间段内未向边缘路由节点400上报物联网数据的终端设备或者向边缘路由节点400上报 物联网数据的上报频率低于预设频率阈值的终端设备，且离线的终端设备可以包括已经损坏的终端设备和/或已经处于长时间关闭状态的终端设备以及设备标识已经被添加至相邻路由节点的路由信息表的终端设备。
控制单元404还可以用于当判断单元403判断出存在上述离线的终端设备的设备标识时，从上述路由信息表中删除上述离线的终端设备的设备标识。
可见，实施图4所描述的边缘路由节点400能够及时删除路由信息表中已经处于离线状态的终端设备的设备标识，有利于物联网架构中物联网拓扑的维护。
可选的，判断单元403还可以用于在判断出上述多个物联网数据中存在上述至少一个物联网数据之后以及在控制单元404将上述至少一个物联网数据包括的终端设备的设备标识添加至上述路由信息表中之前，判断上报上述至少一个物联网数据的终端设备中是否存在路过的终端设备，当判断出上报上述至少一个物联网数据的终端设备中不存在路过的终端设备时，触发控制单元404执行上述将上述至少一个物联网数据包括的终端设备的设备标识添加至上述路由信息表中的操作。
控制单元404还可以用于当判断单元403判断出上报上述至少一个物联网数据的终端设备中存在上述路过的终端设备时，将上报上述至少一个物联网数据的终端设备中除上述路过的终端设备之外的终端设备的设备标识添加至上述路由信息表中。
可见，实施图4所描述的边缘路由节点400还能够过滤掉新增的所处的地理位置为汇聚单元感兴趣的目标地理位置的终端设备中的路过的终端设备，减少了边缘路由节点400在更新路由信息表时的更新内容。
进一步可选的，该边缘路由节点400还可以包括统计单元405以及发送单元406，又进一步可选的，还可以包括设定单元407，此时，该边缘路由节点400的结构可以如图5所示，如图5所示，图5是本发明实施例公开的另一种边缘路由节点的结构示意图。其中：
统计单元405用于统计上述路由信息表中存储的设备标识对应的所有终端设备中设备类型为上述目标设备类型的目标终端设备上报物联网数据的上报频率。
发送单元406用于根据统计单元405统计出的目标终端设备的上报频率向目标终端设备中上报频率低于预设上报频率阈值的终端设备发送上报频率上调指令。
设定单元407用于在上述路由信息表中为上述目标终端设备中上报频率低于预设上报频率阈值的终端设备的设备标识设定上报优先级，其中，上报频率越小，设定的上报优先级越大。
可见，实施图5所描述的边缘路由节点400能够向设备类型为汇聚单元感兴趣的目标设备类型的终端设备中上报物联网数据的上报频率较低的终端设备发送上报频率上调指令并为这些终端设备的设备标识设定高的上报优先级，提高了汇聚单元接收到处于其感兴趣的地理位置的终端设备上报的物联网数据的可靠性。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质包括只读存储器(Read-Only Memory，ROM)、随机存储器(Random Access Memory，RAM)、可编程只读存储器(Programmable Read-only Memory，PROM)、可擦除可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、一次可编程只读存储器(One-time Programmable Read-Only Memory，OTPROM)、电子抹除式可复写只读存储器(Electrically-Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储器、磁盘存储器、磁带存储器、或者能够用于携带或存储数据的计算机可读的任何其他介质。
以上对本发明实施例公开的一种控制边缘路由节点更新路由信息表的方法及设备进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种控制边缘路由节点更新路由信息表的方法，其特征在于，所述方法包括：
    所述边缘路由节点接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息；
    所述边缘路由节点侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个所述物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备的设备标识；
    当所述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，所述边缘路由节点判断所述多个物联网数据中是否存在包括的终端设备的设备类型为所述目标设备类型的至少一个物联网数据，当判断出所述多个物联网数据中存在所述至少一个物联网数据时，将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中，当判断出所述多个物联网数据中不存在所述至少一个物联网数据时，控制不更新所述路由信息表。
  2. 根据权利要求1所述的控制边缘路由节点更新路由信息表的方法，其特征在于，所述方法包括：
    所述边缘路由节点判断所述路由信息表中是否存在离线的终端设备的设备标识，当判断出存在所述离线的终端设备的设备标识时，从所述路由信息表中删除所述离线的终端设备的设备标识，所述离线的终端设备为在预设时间段内未向所述边缘路由节点上报物联网数据的终端设备。
  3. 根据权利要求1或2所述的控制边缘路由节点更新路由信息表的方法，其特征在于，在判断出所述多个物联网数据中存在所述至少一个物联网数据之后，以及所述路由边缘节点将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中之前，所述方法还包括：
    所述边缘路由节点判断上报所述至少一个物联网数据的终端设备中是否存在路过的终端设备，当判断出上报所述至少一个物联网数据的终端设备中不存在所述路过的终端设备时，触发执行所述将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中的操作；
    所述方法还包括：
    当判断出上报所述至少一个物联网数据的终端设备中存在所述路过的终端设备时，所述边缘路由节点将上报所述至少一个物联网数据的终端设备中除所述路过的终端设备之外的终端设备的设备标识添加至所述路由信息表中。
  4. 根据权利要求1-3任一项所述的控制边缘路由节点更新路由信息表的方法，其特征在于，所述方法还包括：
    所述边缘路由节点统计所述路由信息表中存储的设备标识对应的所有终端设备中设备类型为所述目标设备类型的目标终端设备上报物联网数据的上报频率，并向所述目标终端设备中上报频率低于预设上报频率阈值的终端设备发送上报频率上调指令。
  5. 根据权利要求4所述的控制边缘路由节点更新路由信息表的方法，其特征在于，所述方法还包括：
    所述边缘路由节点在所述路由信息表中为所述目标终端设备中上报频率低于所述预设上报频率阈值的终端设备的设备标识设定上报优先级，其中，上报频率越小，设定的上报优先级越大。
  6. 一种边缘路由节点，其特征在于，所述边缘路由节点包括接收单元、侦听单元、判断单元以及控制单元，其中：
    所述接收单元，用于接收过滤网关下发的用于指示汇聚单元对目标设备类型的终端设备上报的物联网数据感兴趣的指示消息；
    所述侦听单元，用于侦听其无线覆盖范围内的海量终端设备上报的海量物联网数据，每个所述物联网数据包括上报该物联网数据的终端设备的设备类型、该终端设备采集的数据内容以及该终端设备的设备标识；
    所述判断单元，用于当所述海量物联网数据中存在包括的终端设备的设备标识未存储于预先生成的路由信息表中的多个物联网数据时，判断所述多个物联网数据中是否存在包括的终端设备的设备类型为所述目标设备类型的至少一个物联网数据；
    所述控制单元，用于当所述判断单元判断出所述多个物联网数据中存在所述至少一个物联网数据时，将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中，以及当所述判断单元判断出所述多个物联网数据中不存在所述至少一个物联网数据时，控制不更新所述路由信息表。
  7. 根据权利要求6所述的边缘路由节点，其特征在于，所述判断单元，还 用于判断所述路由信息表中是否存在离线的终端设备的设备标识，所述离线的终端设备为在预设时间段内未向所述边缘路由节点上报物联网数据的终端设备；
    所述控制单元，还用于当所述判断单元判断出所述路由信息表中存在所述离线的终端设备的设备标识时，从所述路由信息表中删除所述离线的终端设备的设备标识。
  8. 根据权利要求6或7所述的边缘路由节点，其特征在于，所述判断单元，还用于在判断出所述多个物联网数据中存在所述至少一个物联网数据之后以及在所述控制单元将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中之前，判断上报所述至少一个物联网数据的终端设备中是否存在路过的终端设备，当判断出上报所述至少一个物联网数据的终端设备中不存在所述路过的终端设备时，触发所述控制单元执行所述将所述至少一个物联网数据包括的终端设备的设备标识添加至所述路由信息表中的操作；
    所述控制单元，还用于当判断出上报所述至少一个物联网数据的终端设备中存在所述路过的终端设备时，将上报所述至少一个物联网数据的终端设备中除所述路过的终端设备之外的终端设备的设备标识添加至所述路由信息表中。
  9. 根据权利要求6-8任一项所述的边缘路由节点，其特征在于，所述边缘路由节点还包括统计单元以及发送单元，其中：
    所述统计单元，用于统计所述路由信息表中存储的设备标识对应的所有终端设备中设备类型为所述目标设备类型的目标终端设备上报物联网数据的上报频率；
    所述发送单元，用于根据所述统计单元统计出的所述目标终端设备上报物联网数据的上报频率，向所述目标终端设备中上报频率低于预设上报频率阈值的终端设备发送上报频率上调指令。
  10. 根据权利要求9所述的边缘路由节点，其特征在于，所述边缘路由节点还包括设定单元，其中：
    所述设定单元，用于在所述路由信息表中为所述目标终端设备中上报频率低于所述预设上报频率阈值的终端设备的设备标识设定上报优先级，其中，上报频率越小，设定的上报优先级越大。
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