WO2019015048A1 - Procédé et dispositif de traitement d'exception de répéteur dans un réseau de capteurs sans fil - Google Patents

Procédé et dispositif de traitement d'exception de répéteur dans un réseau de capteurs sans fil Download PDF

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Publication number
WO2019015048A1
WO2019015048A1 PCT/CN2017/100877 CN2017100877W WO2019015048A1 WO 2019015048 A1 WO2019015048 A1 WO 2019015048A1 CN 2017100877 W CN2017100877 W CN 2017100877W WO 2019015048 A1 WO2019015048 A1 WO 2019015048A1
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Prior art keywords
repeater
iot
access point
cache data
wireless access
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PCT/CN2017/100877
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English (en)
Chinese (zh)
Inventor
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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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • 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
    • 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
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/563—Data redirection of data network streams
    • 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
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present invention relates to the field of communications, and in particular, to a wireless sensor network repeater exception processing method and device.
  • the wireless sensor network in IoT applications consists of IoT gateways, IoT wireless access points and IoT terminals, and repeaters (partially powered and IoT terminals with built-in routing algorithms can act as repeaters).
  • Data is collected through the Internet of Things terminal, and data is transmitted through the Internet of Things wireless access point and the Internet of Things gateway.
  • the Internet of Things has two meanings: First, the core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet. Second, its client extends and extends between any item and item. Information exchange and communication, that is, things and interests.
  • the Internet of Things is widely used in the convergence of networks through communication-aware technologies such as intelligent sensing, identification technology and pervasive computing. It is also called the third wave of the development of the world information industry after computers and the Internet.
  • the Internet of Things is the application expansion of the Internet. It is not so much that the Internet of Things is a network, but the Internet of Things is a business and application.
  • the embodiment of the invention provides a wireless sensor network repeater abnormality processing method, which can improve the integrity and real-time performance of the data transmission when the wireless sensor network repeater is abnormal.
  • an embodiment of the present invention provides a method for processing an abnormality of a wireless sensor network repeater, which is applied to a wireless sensor network, where the wireless sensor network includes an Internet of Things wireless access point and an Internet of Things terminal.
  • the networked terminal includes a battery-powered IoT terminal and an IoT terminal powered by a power source, and the first IoT terminal in the power-supplying IoT terminal serves as the first repeater of the wireless sensor network.
  • the method comprising the steps of:
  • the IoT wireless access point acquires the first when detecting that the first repeater is abnormal
  • the IoT wireless access point Determining, by the IoT wireless access point, the first part of the cached data in the cached data of the first repeater according to an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater
  • Two-part cache data the first partial cache data is used for migrating to the second repeater, and the second partial cache data is used for migrating to the third repeater;
  • the IoT wireless access point sends a cache data migration instruction to the first repeater, where the cache data migration instruction is used to instruct the first repeater to send the first partial cache data to the first a second repeater, and transmitting the second partial cache data to the third repeater;
  • the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the IoT wireless access point when detecting that the state of the first repeater is abnormal, first acquires the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, and secondly Determining, according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, the first partial cache data and the second partial cache data in the cache data of the first repeater, and again, to the first repeater Sending a cache data migration instruction, and finally, receiving the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the IoT wireless access point backs up the cached data of the first repeater through the second repeater and the third repeater, so that the cached data is directly discarded due to the abnormal state of the first repeater, and simultaneously passes through the second
  • the backup of the repeater and the third repeater can make the buffered data transmit uplink with the lowest delay loss, and minimize the delay caused by the abnormal state of the first repeater, which is beneficial to improve the wireless sensor network.
  • the integrity and real-time nature of data transmission when the relay is abnormal.
  • the method further includes:
  • the IoT wireless access point sends an unmount command to the first repeater, where the unmount command is used to instruct the first repeater to unmount the IoT terminal.
  • the Internet of Things wireless access point after receiving the cached data of the first repeater in the abnormal state, the Internet of Things wireless access point sends an unmount command to the first repeater to indicate that the first repeater is unmounted.
  • the IoT terminal is installed to prevent the uplink data of the IoT terminal from continuing to be transmitted to the first repeater, causing data accumulation, affecting the stability of the wireless sensor network, and improving the stability of the wireless sensor network repeater when an abnormality occurs. Sex.
  • the method further includes:
  • the IoT wireless access point Determining, by the IoT wireless access point, a first device set and a second device set, where the first device set is used in the IoT terminal that is unmounted by the first repeater for migrating to the second device a set of IoT terminals to be mounted by the relay, the second device set is a device for migrating to the third repeater for loading in the IoT terminal that is unmounted by the first repeater a collection of networked terminals;
  • the IoT wireless access point sends a first device mount command to the second relay device, where the first device mount command includes a device identifier of the Internet of Things terminal in the first device set, The device identifier of the Internet of Things terminal in the first device set is used by the second relay device to mount the IoT terminal in the first device set;
  • the IoT wireless access point sends a second device mount command to the third repeater, where the second device mount command includes a device identifier of the Internet of Things terminal in the second device set,
  • the device identifier of the Internet of Things terminal in the second device set is used by the third relay device to mount the Internet of Things terminal in the second device set.
  • the Internet of Things wireless access point mounts the IoT terminal unmounted by the first repeater to the second repeater and the third repeater respectively, so that the first medium is timely
  • the IoT terminal that is unmounted by the relay rejoins the wireless sensor network to reduce the data loss of the IoT terminal, which is beneficial to improving the stability of the data transmission of the wireless sensor network.
  • the IoT wireless access point determines a first device set and a second device set, including:
  • the IoT wireless access point acquires an Internet of Things terminal mounted by the second repeater and an Internet of Things terminal mounted by the third repeater;
  • the IoT wireless access point determines the first device set and the second device set according to the IoT terminal mounted by the second repeater and the IoT terminal mounted by the third repeater.
  • the IoT wireless access point determines a first device set and a second device set, including:
  • the IoT wireless access point determines a first device set and a second device set according to an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater.
  • the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache sent by the third repeater Data, including:
  • the IoT wireless access point broadcasts a frame of network beacons
  • the IoT wireless access point Receiving, by the IoT wireless access point, the first partial cache data sent by the second repeater in a first time slot of the network beacon, where the first time slot is that the second repeater is Received the said After the network beacon is time synchronized, it is determined according to its own network number;
  • a second aspect of the embodiments of the present invention provides an Internet of Things wireless access point, which has the function of implementing the Internet of Things wireless access point in the method design of the above first aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the IoT wireless access point includes a processing unit and a communication unit, and the processing unit is configured to acquire the second relay by using the communication unit when detecting that the first repeater status is abnormal Upstream bandwidth of the device and uplink bandwidth of the third repeater; and determining the first repeater according to an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater a first portion of cached data for migrating to the second repeater, and a second portion of cached data for migrating to the third And a buffer data migration instruction sent to the first relay by the communication unit, the cache data migration instruction is used to instruct the first repeater to send the first partial cache data to The second repeater, and transmitting the second partial cache data to the third repeater; and for receiving, by the communication unit, the first partial cache sent by the second repeater Data and A third relay transmitting a second portion of the data cache.
  • the processing unit receives, by the communication unit, the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater. And is further configured to send, by the communication unit, an unmount command to the first repeater, where the unmount command is used to instruct the first repeater to unmount the IoT terminal.
  • the processing unit is further configured to determine a first device set and a second device set, where the first device is The set is a set of IoT terminals for migrating to the second repeater for loading in the IoT terminal that is unmounted by the first repeater, and the second device set is the first one.
  • a set of IoT terminals for migrating to the third repeater for mounting in the IoT terminal that is unmounted; and for transmitting the first to the second repeater by the communication unit a device mounting instruction, where the first device mounting instruction includes a device identifier of the Internet of Things terminal in the first device set, and the device identifier of the Internet of Things terminal in the first device set is used in the second device Suspending an IoT terminal in the first set of devices; and for transmitting to the third repeater through the communication unit a second device mounting instruction, where the second device mounting instruction includes a device identifier of the Internet of Things terminal in the second device set, and a device identifier of the Internet of Things terminal in the second device set is used for the The three repeaters mount the IoT terminals in the second set of devices.
  • the processing unit determines a first device set and a second device set, specifically, configured to: acquire, by the communication unit, the second relay device-mounted IoT terminal and the third And an IoT terminal mounted by the repeater; and determining, by the IoT terminal mounted by the second repeater and the IoT terminal mounted by the third repeater, determining the first device set and the second device Device collection.
  • the processing unit determines the first device set and the second device set, and is specifically configured to: determine, according to an uplink bandwidth of the second relay and an uplink bandwidth of the third repeater, The first device set and the second device set.
  • a third aspect of the embodiments of the present invention provides an Internet of Things wireless access point, where the Internet of Things wireless access point includes a processor configured to support an Internet of Things wireless access point to perform the foregoing first aspect The corresponding function in the method. Further, the Internet of Things wireless access point may further include a transceiver for supporting communication between the Internet of Things wireless access point and the Internet of Things terminal. Further, the Internet of Things wireless access point may further include a memory for coupling with the processor, which stores necessary program instructions and data of the Internet of Things wireless access point.
  • a fourth aspect of the embodiments of the present invention provides an Internet of Things wireless access point, the IoT wireless access point comprising one or more processors, a memory, one or more programs, wherein the one or more programs Stored in the memory and configured to be executed by the one or more processors, the program comprising instructions for performing any of the steps of the first aspect described above.
  • a fifth aspect of embodiments of the present invention provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to perform the implementation of the present invention
  • a computer program product comprising a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to execute Some or all of the steps described in any of the methods of the first aspect of the invention.
  • the computer program product can be a software installation package.
  • the IoT wireless access point when detecting that the state of the first repeater is abnormal, first acquires the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, and secondly Determining, according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, the first partial cache data and the second partial cache data in the cache data of the first repeater, and again, to the first repeater Send slow The data migration instruction is stored, and finally, the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater are received.
  • the IoT wireless access point backs up the cached data of the first repeater through the second repeater and the third repeater, so that the cached data is directly discarded due to the abnormal state of the first repeater, and simultaneously passes through the second
  • the backup of the repeater and the third repeater can make the buffered data transmit uplink with the lowest delay loss, and minimize the delay caused by the abnormal state of the first repeater, which is beneficial to improve the wireless sensor network.
  • the integrity and real-time nature of data transmission when the relay is abnormal.
  • FIG. 1 is a network architecture diagram of an exemplary wireless sensor network according to an embodiment of the present invention.
  • 2A is a schematic flowchart of a method for processing an exception of a wireless sensor network repeater according to an embodiment of the present invention
  • FIG. 2B is a schematic diagram of a time slot structure of an exemplary network beacon according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of another wireless sensor network repeater exception processing method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another wireless sensor network repeater abnormality processing method according to an embodiment of the present invention.
  • FIG. 5A is a functional block diagram of an Internet of Things wireless access point according to an embodiment of the present invention.
  • FIG. 5B is a schematic structural diagram of an Internet of Things wireless access point according to an embodiment of the present invention.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • FIG. 1 is a network architecture diagram of an exemplary wireless sensor network according to an embodiment of the present invention, where the wireless sensor network includes an Internet of Things gateway and an Internet of Things wireless connection that is in communication with the Internet of Things gateway.
  • Point an IoT terminal communicatively connected with the Internet of Things wireless access point, wherein the Internet of Things gateway connects to the Internet through a medium such as an optical fiber, and the Internet of Things gateway wirelessly connects the Internet of Things wireless access point, the Internet of Things wireless access point
  • the IoT terminal is connected by a star topology, and the frequency of each IoT wireless access point is different.
  • the IoT terminal that is not in the network searches for the most advantageous IoT wireless access point by means of frequency hopping.
  • IoT terminals include battery-powered IoT terminals and IoT terminals powered by power supplies.
  • the IoT terminal powered by the power supply has a routing algorithm embedded therein.
  • the Internet of Things wireless access point can identify the IoT terminal that is powered by the IoT terminal or the IoT terminal that is powered by the power supply through the status indicator that has been preset at the time of registration in the Internet of Things terminal.
  • IoT wireless access points are able to properly select repeaters.
  • the IoT terminal detects that the distance between itself and the IoT wireless access point exceeds the preset maximum transmission distance, the relay transmission needs to be completed through the repeater.
  • a plurality of repeaters may be included in an exemplary wireless sensor network to which embodiments of the present invention are applicable.
  • FIG. 2A is a schematic flowchart of a method for processing an abnormality of a wireless sensor network repeater according to an embodiment of the present invention, which is applied to a wireless sensor network
  • the wireless sensor network includes an Internet of Things wireless access point and An Internet of Things terminal
  • the IoT terminal comprising a battery-powered IoT terminal and an IoT terminal powered by a power source
  • the first IoT terminal in the IoT terminal powered by the power source serves as the wireless sensor network a first repeater
  • a second IoT terminal in the power-supplying IoT terminal as a second repeater of the wireless sensor network serves as the wireless sensor network a first repeater
  • a second IoT terminal in the power-supplying IoT terminal as a second repeater of the wireless sensor network
  • a third object in the IoT terminal powered by the power source a networked terminal as a third repeater of the wireless sensor network
  • the second repeater and the third repeater are in communication with each other, as
  • the IoT wireless access point acquires an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater when detecting that the first repeater is abnormal.
  • the specific implementation manner of the IoT wireless access point when detecting the abnormal state of the first repeater may be various, which is not limited by the embodiment of the present invention.
  • the Internet of Things wireless access point detects that the uplink data of the first repeater is not received within the current beacon period, it may determine that the first repeater status is abnormal.
  • the IoT wireless access point receives the status abnormality message reported by the first repeater, the first repeater status may be abnormal.
  • the reporting mechanism of the IoT terminal uses a combination of an orderly competition mechanism (such as time division multiple access technology) and an out-of-order competition mechanism, as shown in Figure 2B.
  • the process is: the IoT wireless access point periodically broadcasts a frame of network beacon (period T), and divides the beacon period T into n network time slots according to time division multiple access, each network time slot is ⁇ t
  • At least one network time slot ⁇ t is reserved for the Internet access terminal of the unconnected network to interact with the network, and the remaining ⁇ t of the remaining ⁇ t are allocated to the IoT terminal that has joined the network and assigned the network number according to the network number (the network number is When the IoT terminal joins the IoT wireless access point network, the data exchange is performed by the IoT wireless access point, and the remaining ⁇ t of the remaining ⁇ t are allocated to all IoT terminals that have joined the wireless sensor network. Compete channel resources in disorder.
  • the first repeater, the second repeater and the third repeater are all IoT terminals with built-in routing algorithms, and the three communicate with each other, and the routing algorithm includes a frequency hopping and frequency division multiplexing algorithm. And time division multiplexing algorithm.
  • the control repeater transmits the wireless signal through the frequency hopping and frequency division multiplexing algorithm, or controls the repeater to transmit the wireless signal through the time division multiplexing algorithm; it should be noted that since the frequency resources of the whole network are limited, the repeater will Whether to enable the frequency hopping and frequency division multiplexing algorithm or the time division multiplexing algorithm to complete the relay task is determined according to the current available frequency resources.
  • the repeater when the relay task is performed by the repeater, when the frequency resource is relatively large and the frequency resource is relatively small, for example, the repeater transmits the wireless signal through the frequency hopping and frequency division multiplexing algorithm, or adopts time division multiplexing.
  • the algorithm transmits a wireless signal for detailed description:
  • the IRS wireless access point system enables each embedded preset routing algorithm to select a frequency hopping algorithm and frequency division multiplexing.
  • the algorithm transmits a wireless signal to complete the relay task. For example, one repeater and all IoT terminals connected to it jump to the 436.1 frequency point as the relay frequency point for wireless communication, and the other repeater jumps to the 321 frequency point with all the IoT terminals connected to it.
  • Relay frequency communication wherein the repeater can communicate with the connected Internet of Things wireless access point through a preset working frequency point; Push, each repeater communicates through different relay frequency points.
  • the allocation of frequency points can be set according to actual needs, and is not further limited herein.
  • the communication between the repeater and the Internet of Things wireless access point uses the working frequency point
  • the communication between the repeater and the remote IoT terminal uses the relay frequency point.
  • the IoT wireless access point control repeater enables the embedded preset routing algorithm to select the relay task through the time division multiplexing algorithm; for example, the trade-off is complete
  • the time resource of the network allocates time slots evenly, assigns the first 100 seconds of time slots to one repeater, assigns the next 100 seconds of time slots to another repeater, and so on, and each repeater passes between Wireless communication is performed at different points in time at the same frequency point. It can be understood that the foregoing time slot allocation can be set according to actual needs, and is not further limited herein.
  • the amount of time slots may be allocated as needed according to the needs of each repeater for the time slot; or the preferred allocation control may be performed according to the priority of the repeater application.
  • each repeater sends information such as the number of remote IoT terminals being relayed and the quality of service in the communication process to the IoT wireless access point in time, and the IoT wireless access point is unified according to the situation. Allocate time slots.
  • the IoT wireless access point determines the first partial cached data in the cached data of the first repeater according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater. And a second part of the cached data, the first partial cache data is used for migrating to the second repeater, and the second partial cached data is used for migrating to the third repeater;
  • the cached data may refer to the previous beacon period of the current beacon period, the uplink data of the Internet of Things terminal that is connected by the first repeater received by the first repeater, and the uplink data of the part is due to the first
  • the status of the repeater has not been synchronously uploaded to the IoT wireless access point in the previous beacon period, so it is cached in the first repeater.
  • the IoT wireless access point sends a cache data migration instruction to the first repeater, where the cache data migration instruction is used to instruct the first repeater to send the first partial cache data to the Determining a second repeater, and transmitting the second partial cache data to the third repeater;
  • the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the specific implementation manner that the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater may be implemented.
  • the IoT wireless access point broadcasts a frame of network beacon;
  • the IoT wireless access point receives the first partial cache sent by the second repeater in a first time slot of the network beacon Data, the first time slot is a root of the second repeater after receiving the network beacon for time synchronization Determining according to the network number of the network;
  • the IoT wireless access point receives the second partial cache data sent by the third repeater in the second time slot of the network beacon, the second time slot
  • the third repeater determines the network beacon according to its own network number after receiving the network beacon for time synchronization.
  • the IoT wireless access point when detecting that the state of the first repeater is abnormal, first acquires the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, and secondly Determining, according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, the first partial cache data and the second partial cache data in the cache data of the first repeater, and again, to the first repeater Sending a cache data migration instruction, and finally, receiving the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the IoT wireless access point backs up the cached data of the first repeater through the second repeater and the third repeater, so that the cached data is directly discarded due to the abnormal state of the first repeater, and simultaneously passes through the second
  • the backup of the repeater and the third repeater can make the buffered data transmit uplink with the lowest delay loss, and minimize the delay caused by the abnormal state of the first repeater, which is beneficial to improve the wireless sensor network.
  • the integrity and real-time nature of data transmission when the relay is abnormal.
  • the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater, The method also includes:
  • the IoT wireless access point sends an unmount command to the first repeater, where the unmount command is used to instruct the first repeater to unmount the IoT terminal.
  • the Internet of Things wireless access point after receiving the cached data of the first repeater in the abnormal state, the Internet of Things wireless access point sends an unmount command to the first repeater to indicate that the first repeater is unmounted.
  • the IoT terminal is installed to prevent the uplink data of the IoT terminal from continuing to be transmitted to the first repeater, causing data accumulation, affecting the stability of the wireless sensor network, and improving the stability of the wireless sensor network repeater when an abnormality occurs. Sex.
  • the method further includes:
  • the IoT wireless access point Determining, by the IoT wireless access point, a first device set and a second device set, where the first device set is used in the IoT terminal that is unmounted by the first repeater for migrating to the second device a set of IoT terminals to be mounted by the relay, the second device set is a device for migrating to the third repeater for loading in the IoT terminal that is unmounted by the first repeater a collection of networked terminals;
  • the IoT wireless access point sends a first device mount command to the second relay device, where the first device mount command includes a device identifier of the Internet of Things terminal in the first device set, The device identifier of the Internet of Things terminal in the first device set is used by the second relay device to mount the first device IoT terminals in the collection;
  • the IoT wireless access point sends a second device mount command to the third repeater, where the second device mount command includes a device identifier of the Internet of Things terminal in the second device set,
  • the device identifier of the Internet of Things terminal in the second device set is used by the third relay device to mount the Internet of Things terminal in the second device set.
  • the Internet of Things wireless access point mounts the IoT terminal unmounted by the first repeater to the second repeater and the third repeater respectively, so that the first medium is timely
  • the IoT terminal that is unmounted by the relay rejoins the wireless sensor network to reduce the data loss of the IoT terminal, which is beneficial to improving the stability of the data transmission of the wireless sensor network.
  • the IoT wireless access point determines a first device set and a second device set, including:
  • the IoT wireless access point acquires an Internet of Things terminal mounted by the second repeater and an Internet of Things terminal mounted by the third repeater;
  • the IoT wireless access point determines the first device set and the second device set according to the IoT terminal mounted by the second repeater and the IoT terminal mounted by the third repeater.
  • the IoT wireless access point determines a first device set and a second device set, including:
  • the IoT wireless access point determines a first device set and a second device set according to an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater.
  • FIG. 3 is a schematic flowchart of another method for processing an abnormality of a wireless sensor network repeater according to an embodiment of the present disclosure, which is applied to a wireless sensor network.
  • the wireless sensor network includes an Internet of Things wireless access point and an Internet of Things terminal, and the Internet of Things terminal includes a battery-powered IoT terminal and an IoT terminal powered by a power source, and the IoT terminal powered by the power source a first IoT terminal as the first repeater of the wireless sensor network, and a second IoT terminal in the power-networked IoT terminal as a second repeater of the wireless sensor network, a third IoT terminal in the IoT terminal powered by the power source as a third repeater of the wireless sensor network, the first repeater, the second repeater, and the third The repeaters are in communication with each other.
  • the wireless sensor network repeater exception processing method includes:
  • the IoT wireless access point acquires an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater when detecting that the first repeater is abnormal.
  • the IoT wireless access point is according to an uplink bandwidth of the second repeater and the third And determining, by the uplink bandwidth of the repeater, the first partial cache data and the second partial cache data in the cache data of the first repeater, where the first partial cache data is used to migrate to the second repeater.
  • the second part of the cache data is used for migrating to the third repeater;
  • the IoT wireless access point sends a cache data migration instruction to the first repeater, where the cache data migration instruction is used to instruct the first repeater to send the first partial cache data to the Determining a second repeater, and transmitting the second partial cache data to the third repeater;
  • the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the IoT wireless access point sends an unmount command to the first repeater, where the unmount command is used to instruct the first repeater to unmount the IoT terminal.
  • the IoT wireless access point when detecting that the state of the first repeater is abnormal, first acquires the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, and secondly Determining, according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, the first partial cache data and the second partial cache data in the cache data of the first repeater, and again, to the first repeater Sending a cache data migration instruction, and finally, receiving the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the IoT wireless access point backs up the cached data of the first repeater through the second repeater and the third repeater, so that the cached data is directly discarded due to the abnormal state of the first repeater, and simultaneously passes through the second
  • the backup of the repeater and the third repeater can make the buffered data transmit uplink with the lowest delay loss, and minimize the delay caused by the abnormal state of the first repeater, which is beneficial to improve the wireless sensor network.
  • the integrity and real-time nature of data transmission when the relay is abnormal.
  • the Internet of Things wireless access point after receiving the cached data of the first repeater in the abnormal state, the Internet of Things wireless access point sends an unmount command to the first repeater to instruct the first repeater to unmount the IoT terminal.
  • the uplink data of the IoT terminal is prevented from continuing to be transmitted to the first repeater, causing data accumulation, affecting the stability of the wireless sensor network, and improving the stability of the wireless sensor network repeater when an abnormality occurs.
  • FIG. 4 is a schematic flowchart of another method for processing an abnormality of a wireless sensor network repeater according to an embodiment of the present disclosure, which is applied to wireless transmission.
  • a wireless network comprising an Internet of Things wireless access point and an Internet of Things terminal, the Internet of Things terminal comprising a battery powered IoT terminal and an IoT terminal powered by a power source, the power supply a first IoT terminal in the networked terminal as a first repeater of the wireless sensor network, and a second IoT terminal in the power-networked IoT terminal as a second in the wireless sensor network a third IoT terminal in the IoT terminal powered by the power supply as the A third repeater of the line sensing network, the first repeater, the second repeater, and the third repeater are in communication with each other.
  • the wireless sensor network repeater exception processing method includes:
  • the IoT wireless access point acquires an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater when detecting that the first repeater is abnormal.
  • the IoT wireless access point determines the first partial cached data in the cached data of the first repeater according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater. And a second part of the cached data, the first partial cache data is used for migrating to the second repeater, and the second partial cached data is used for migrating to the third repeater;
  • the IoT wireless access point sends a cache data migration instruction to the first repeater, where the cache data migration instruction is used to instruct the first repeater to send the first partial cache data to the Determining a second repeater, and transmitting the second partial cache data to the third repeater;
  • the IoT wireless access point receives the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the IoT wireless access point sends an unmount command to the first repeater, where the unmount command is used to instruct the first repeater to unmount the IoT terminal.
  • the IoT wireless access point determines a first device set and a second device set, where the first device set is used in the IoT terminal that is unmounted by the first repeater for migrating to the a set of IoT terminals that are mounted by the second repeater, the second set of devices is used in the IoT terminal that is unmounted by the first repeater for migrating to the third repeater for mounting a collection of IoT terminals;
  • the IoT wireless access point sends a first device mount instruction to the second repeater, where the first device mount command includes a device identifier of the Internet of Things terminal in the first device set, The device identifier of the Internet of Things terminal in the first device set is used by the second relay device to mount an IoT terminal in the first device set;
  • the IoT wireless access point sends a second device mount command to the third repeater, where the second device mount command includes a device identifier of the Internet of Things terminal in the second device set, The device identifier of the Internet of Things terminal in the second device set is used by the third relay device to mount an IoT terminal in the second device set.
  • the IoT wireless access point when detecting that the state of the first repeater is abnormal, first acquires the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, and secondly Determining, according to the uplink bandwidth of the second repeater and the uplink bandwidth of the third repeater, the first partial cache data and the second partial cache data in the cache data of the first repeater, and again, to the first repeater Send slow The data migration instruction is stored, and finally, the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater are received.
  • the IoT wireless access point backs up the cached data of the first repeater through the second repeater and the third repeater, so that the cached data is directly discarded due to the abnormal state of the first repeater, and simultaneously passes through the second
  • the backup of the repeater and the third repeater can make the buffered data transmit uplink with the lowest delay loss, and minimize the delay caused by the abnormal state of the first repeater, which is beneficial to improve the wireless sensor network.
  • the integrity and real-time nature of data transmission when the relay is abnormal.
  • the Internet of Things wireless access point after receiving the cached data of the first repeater in the abnormal state, the Internet of Things wireless access point sends an unmount command to the first repeater to instruct the first repeater to unmount the IoT terminal.
  • the uplink data of the IoT terminal is prevented from continuing to be transmitted to the first repeater, causing data accumulation, affecting the stability of the wireless sensor network, and improving the stability of the wireless sensor network repeater when an abnormality occurs.
  • the Internet of Things wireless access point mounts the IoT terminal unmounted by the first repeater to the second repeater and the third repeater, thereby unmounting the first repeater in time.
  • the IoT terminal rejoins the wireless sensor network to reduce the data loss of the IoT terminal, which is beneficial to improve the stability of data transmission in the wireless sensor network.
  • the Internet of Things wireless access point includes corresponding hardware structures and/or software modules for performing various functions.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the embodiment of the present invention may divide the functional unit of the Internet of Things wireless access point according to the foregoing method example.
  • each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 5A shows a possible structural diagram of the Internet of Things wireless access point involved in the above embodiment.
  • the Internet of Things wireless access point 500 includes a processing unit 502 and a communication unit 503.
  • the processing unit 502 is configured to perform control management on the action of the Internet of Things wireless access point.
  • the processing unit 502 is configured to support the Internet of Things wireless access point to perform step S201 in FIG. 2A. Up to 204, steps S301 through S305 in FIG. 3, and steps S401 through S408 in FIG. 4 and/or other processes for the techniques described herein.
  • the communication unit 503 is configured to support communication between the IoT wireless access point and other devices, such as communication with an Internet of Things wireless access point in the mobile communication network.
  • the Internet of Things wireless access point may further include a storage unit 501 for storing program codes and data of the Internet of Things wireless access point.
  • the processing unit 502 can be a processor or a controller, and can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 503 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces.
  • the storage unit 501 can be a memory.
  • the processing unit 502 is configured to acquire, by the communication unit 503, an uplink bandwidth of the second repeater and the third repeater when detecting that the first repeater state is abnormal.
  • An uplink bandwidth ; and configured to determine a first partial cache data and a second portion of the cache data of the first repeater according to an uplink bandwidth of the second repeater and an uplink bandwidth of the third repeater Cache data, the first partial cache data for migrating to the second repeater, the second partial cache data for migrating to the third repeater; and for forwarding to the third unit via the communication unit 503
  • the first repeater sends a cache data migration instruction, where the cache data migration instruction is used to instruct the first repeater to send the first partial cache data to the second repeater, and send the second partial cache data And to the third repeater; and configured to receive, by the communication unit 503, the first partial cache data sent by the second repeater and the second partial cache data sent by the third repeater.
  • the processing unit 502 receives, by the communication unit 503, the first partial cache data sent by the second repeater and the second partial cache sent by the third repeater. After the data is further used, the unloading instruction is sent to the first repeater by the communication unit 503, and the unmounting instruction is used to instruct the first repeater to unmount the IoT terminal.
  • the processing unit 502 is further configured to determine a first device set and a second device set, where the a device set is used in the IoT terminal that is unmounted by the first repeater for migrating to the a set of IoT terminals that are mounted by the second repeater, where the second set of devices is used in the IoT terminal that is unmounted by the first repeater for migration to the third repeater.
  • the communication unit 503 sends a second device mount instruction to the third repeater, where the second device mount command includes a device identifier of the Internet of Things terminal in the second device set, and the second device set The device identifier of the IoT terminal is used by the third relay to mount the IoT terminal in the second device set.
  • the processing unit 502 is specifically configured to: acquire, by the communication unit 503, the IoT terminal mounted by the second repeater and The IoT terminal mounted by the third repeater; and determining the first device according to the IoT terminal mounted by the second repeater and the IoT terminal mounted by the third repeater Collection and second device collection.
  • the processing unit 502 is specifically configured to: according to the uplink bandwidth of the second repeater and the uplink of the third repeater Bandwidth, determining a first device set and a second device set.
  • the Internet of Things wireless access point may be the Internet of Things wireless access point shown in FIG. 5B.
  • the Internet of Things wireless access point 510 includes a processor 512, a transceiver 513, and a memory 511.
  • the Internet of Things wireless access point 510 can also include a bus 515.
  • the transceiver 513, the processor 512, and the memory 511 may be connected to each other through a bus 515.
  • the bus 515 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (abbreviated). EISA) bus and so on.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 515 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5B, but it does not mean that there is only one bus or one type of bus.
  • the device for the Internet of Things (IoT) access point shown in FIG. 5A or FIG. 5B can also be understood as a device for the IoT wireless access point, which is not limited in the embodiment of the present invention.
  • IoT Internet of Things
  • Embodiments of the present invention also provide an Internet of Things wireless access point, including one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured Executing by the one or more processors, the program comprising An instruction of any one of the wireless sensor network repeater exception processing methods described in the embodiment.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, the computer program causing the computer to execute any of the wireless sensor networks as described in the foregoing method embodiments. Part or all of the steps of the relay exception handling method.
  • Embodiments of the present invention also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the operations as recited in the above method embodiments Any or all of the steps of any wireless sensor network repeater exception handling method.
  • the computer program product can be a software installation package.
  • the disclosed apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold as a standalone product Or when used, it can be stored in a computer readable memory.
  • the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a memory.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing memory includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like, which can store program codes.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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Abstract

Les modes de réalisation de la présente invention concernent un procédé et un dispositif de traitement d'exception d'un répéteur dans un réseau de capteurs sans fil, consistant à : obtenir une largeur de bande de liaison montante d'un deuxième répéteur et une largeur de bande de liaison montante d'un troisième répéteur lorsqu'une exception d'état d'un premier répéteur est détectée ; déterminer des premières données de cache partielles et des deuxièmes données de cache partielles parmi des données de cache du premier répéteur en fonction de la largeur de bande de liaison montante du deuxième répéteur et de la largeur de bande de liaison montante du troisième répéteur ; envoyer une instruction de migration de données de cache au premier répéteur ; et recevoir les premières données de cache partielles envoyées par le deuxième répéteur et les deuxièmes données de cache partielles envoyées par le troisième répéteur. Les modes de réalisation de la présente invention sont utiles pour améliorer l'intégrité et la performance en temps réel de transmission de données lorsqu'un répéteur dans un réseau de capteurs sans fil subit une exception.
PCT/CN2017/100877 2017-07-21 2017-09-07 Procédé et dispositif de traitement d'exception de répéteur dans un réseau de capteurs sans fil WO2019015048A1 (fr)

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