WO2019015047A1

WO2019015047A1 - Method and device for handling internet of things access point exception in wireless sensor network

Info

Publication number: WO2019015047A1
Application number: PCT/CN2017/100875
Authority: WO
Inventors: 杜光东
Original assignee: 深圳市盛路物联通讯技术有限公司
Priority date: 2017-07-19
Filing date: 2017-09-07
Publication date: 2019-01-24
Also published as: CN107548018B; CN107548018A

Abstract

Disclosed are a method and device for handling an Internet of Things wireless access point exception in a wireless sensor network, comprising: when an exception in the state of an Internet of Things wireless access point is detected by an Internet of Things gateway, acquiring the uplink bandwidth of a second Internet of Things wireless access point and the uplink bandwidth of a third Internet of Things wireless access point; when the uplink bandwidth of the second Internet of Things wireless access point is detected to be greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, transmitting a first cached data migration instruction to the first Internet of Things wireless access point, the first cached data migration instruction being used for instructing the first Internet of Things wireless access point to migrate cached data to the second Internet of Things wireless access point; and receiving the cached data of the first Internet of Things wireless access point transmitted by the second Internet of Things wireless access point. Embodiments of the present invention favor increased stability of data transmission and anti-interference capability of the wireless sensor network.

Description

Wireless sensor network IoT wireless access point exception processing method and device

Technical field

The present application relates to the field of communications, and in particular, to a wireless sensor network Internet of Things wireless access point exception processing method and device.

Background technique

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.

At present, in the Internet of Things wireless sensor network, when the IoT wireless access point fails to perform effective uplink data transmission, the cached data in the Internet of Things wireless access point will be lost.

Summary of the invention

The present invention provides a wireless sensor network IoT wireless access point exception processing method, which can improve the integrity and real-time performance of data transmission when the wireless sensor network IoT wireless access point is abnormal.

In a first aspect, an embodiment of the present invention provides a wireless sensor network IoT wireless access point exception processing method, which is applied to a wireless sensor network, where the wireless sensor network includes an Internet of Things gateway and communicates with the Internet of Things gateway. The connected Internet of Things wireless access point includes a first Internet of Things wireless access point, a second Internet of Things wireless access point, and a third Internet of Things wireless access point, and the method includes the following Steps:

And obtaining, by the IoT gateway, an uplink bandwidth of the second Internet of Things wireless access point and an uplink bandwidth of the third Internet of Things wireless access point when detecting that the first relay state is abnormal;

When it is detected that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the Internet of Things gateway sends the first Internet of Things wireless access point a first cache data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point;

The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.

It can be seen that, in the embodiment of the present invention, when the state network gateway detects that the state of the first Internet of Things wireless access point is abnormal, the uplink bandwidth of the second Internet of Things wireless access point and the third Internet of Things wireless access point are obtained. Uplink bandwidth, when detecting that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends the first cached data to the first Internet of Things wireless access point The migration instruction, the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send the cached data to the second Internet of Things wireless access point, and finally, to receive the cached data sent by the second Internet of Things wireless access point. The higher the uplink bandwidth, the higher the uplink data transmission rate of the Internet of Things wireless access point, so the IoT gateway sends the cached data to the second Internet of Things wireless access by the first IoT wireless access point indicating the abnormal state. Point, so that the cached data can be reported to the second IoT wireless access point to the user with the lowest delay loss, thereby minimizing the delay caused by the abnormal state of the first IoT wireless access point, and avoiding the The cached data of an IoT wireless access point is discarded, which is beneficial to improve the integrity and real-time performance of the data transmission when the wireless sensor network IoT wireless access point is abnormal.

In one possible design, the method further includes:

When detecting that the uplink bandwidth of the second Internet of Things wireless access point is smaller than the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends a second to the first Internet of Things wireless access point And buffering the data migration instruction, the second cache data migration instruction is used to instruct the first Internet of Things wireless access point to send the cached data to the third Internet of Things wireless access point.

In one possible design, the method further includes:

The IoT gateway sends an unmount command to the first Internet of Things wireless access point, where the unmount command is used to instruct the first Internet of Things (IoT) wireless access point to unmount the IoT terminal.

It can be seen that, in the possible design, after receiving the cached data of the first Internet of Things wireless access point in an abnormal state, the IoT gateway sends a unmount command to the first Internet of Things wireless access point to indicate the first Internet of Things. The wireless access point unmounts the IoT terminal to prevent the uplink data of the IoT terminal from continuing to be transmitted to the first Internet of Things wireless access point, causing data accumulation, affecting the stability of the wireless sensor network, and facilitating the improvement of the wireless sensor. The stability of the network repeater when an exception occurs.

In a possible design, after the IoT gateway sends an unmount command to the first IoT wireless access point, the method further includes:

Transmitting, by the IoT gateway, a first device mounting instruction to the third IoT wireless access point, where the first device mounting instruction includes an IoT terminal that is unmounted by the first Internet of Things wireless access point The device identifier is used by the third IoT wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.

It can be seen that in the possible design, the IoT gateway can also instruct the third IoT wireless access point to mount the IoT terminal of the first IoT wireless access point to be unmounted, thereby timely accessing the first Internet of Things wireless access. The point-unloaded IoT terminal 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 gateway sends a second device mount command to the second Internet of Things wireless access point, where the second device mount command includes the first Internet of Things wireless access point unmounting the Internet of Things terminal The device identifier is used by the second Internet of Things wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.

It can be seen that in the possible design, the IoT gateway can also instruct the second IoT wireless access point to mount the IoT terminal of the first IoT wireless access point to be unmounted, thereby timely accessing the first Internet of Things wireless access. The point-unloaded IoT terminal 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.

A second aspect of the embodiments of the present invention provides an Internet of Things gateway, which has the function of implementing the Internet of Things gateway 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 of the above The function corresponds to the module.

Specifically, the IoT gateway includes a processing unit and a communication unit, and the processing unit is configured to acquire the second Internet of Things wireless access by using the communication unit when detecting that the first repeater status is abnormal An uplink bandwidth of the point and an uplink bandwidth of the third Internet of Things wireless access point; and for detecting that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the third Internet of Things wireless access Sending, by the communication unit, a first cache data migration instruction to the first Internet of Things wireless access point, where the first cache data migration instruction is used to indicate the first Internet of Things wireless access point Transmitting cached data to the second IoT wireless access point, and receiving, by the communication unit, cached data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point .

In a possible design, the processing unit is further configured to: when detecting that an uplink bandwidth of the second IoT wireless access point is smaller than an uplink bandwidth of the third IoT wireless access point, by using the communication unit Sending a second cache data migration instruction to the first Internet of Things wireless access point, where the second cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the third object a networked wireless access point, and buffer data for receiving, by the communication unit, the first Internet of Things wireless access point transmitted by the third Internet of Things wireless access point.

In a possible design, the processing unit is further configured to send, by using the communication unit, an unmount command to the first Internet of Things wireless access point, where the unmount command is used to indicate the first object The connected wireless access point unmounts the IoT terminal.

In a possible design, after the sending, by the communication unit, the unmounting instruction to the first IoT wireless access point, the processing unit is further configured to send the third Internet of Things wireless through the communication unit. The access point sends a first device mount command, where the first device mount command includes a device identifier of the IoT terminal that is unmounted by the first Internet of Things wireless access point, and the device identifier is used by the The three Internet of Things wireless access points mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.

In a possible design, after the sending, by the communication unit, the unmounting instruction to the first Internet of Things wireless access point, the processing unit is further configured to send the second Internet of Things wireless through the communication unit. The access point sends a second device mount command, where the second device mount command includes a device identifier of the IoT terminal that is unmounted by the first IoT wireless access point, where the device identifier is used by the The second Internet of Things wireless access point mounts the IoT terminal that is unmounted by the first Internet of Things wireless access point.

A third aspect of the embodiments of the present invention provides an Internet of Things gateway, the IoT gateway including a processor configured to support an IoT gateway to perform a corresponding function in the method of the above first aspect. Further, the Internet of Things gateway may further include a transceiver for supporting communication between the Internet of Things gateway and the Internet of Things terminal. Further, the IoT gateway may further include a memory for coupling with the processor, which stores necessary program instructions and data of the IoT gateway.

According to a fourth aspect of the embodiments of the present invention, there is provided an Internet of Things gateway, the IoT gateway comprising one or more processors, a memory, one or more programs, wherein the one or more programs are stored in the memory And configured to be executed by the one or more processors, the program comprising instructions for performing any one of the methods of the first aspect 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 Some or all of the steps described in any of the methods of the first aspect.

According to a sixth aspect of the embodiments of the present invention, a computer program product, wherein the computer program product comprises 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.

It can be seen that, in the embodiment of the present invention, when the state network gateway detects that the state of the first Internet of Things wireless access point is abnormal, the uplink bandwidth of the second Internet of Things wireless access point and the third Internet of Things wireless access point are obtained. Uplink bandwidth, when detecting that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends the first cached data to the first Internet of Things wireless access point The migration instruction, the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send the cached data to the second Internet of Things wireless access point, and finally, to receive the cached data sent by the second Internet of Things wireless access point. The higher the uplink bandwidth, the higher the uplink data transmission rate of the Internet of Things wireless access point, so the IoT gateway sends the cached data to the second Internet of Things wireless access by the first IoT wireless access point indicating the abnormal state. Point, so that the cached data can be reported to the second IoT wireless access point to the user with the lowest delay loss, as much as possible due to the first IoT wireless access point The delay caused by the abnormal state, and avoiding the cached data of the first Internet of Things wireless access point being discarded, is beneficial to improving the integrity and real-time performance of the data transmission when the wireless sensor network IoT wireless access point is abnormal.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a network architecture diagram of an exemplary wireless sensor network according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart diagram of an abnormality processing method for an Internet of Things wireless access point in a wireless sensor network according to an embodiment of the present invention; FIG.

FIG. 3 is a schematic flowchart of another method for processing an Internet of Things wireless access point exception in a wireless sensor network according to an embodiment of the present invention; FIG.

FIG. 4 is a schematic flowchart of another method for processing an Internet of Things wireless access point abnormality in a wireless sensor network according to an embodiment of the present invention.

FIG. 5A is a functional block diagram of an Internet of Things gateway according to an embodiment of the present invention; FIG.

FIG. 5B is a schematic structural diagram of an Internet of Things gateway according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second" and the like in the specification and claims of the present invention and the above drawings are used to distinguish different objects, and are not intended to describe a specific order. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but rather Also included are steps or units not listed, or alternatively other steps or units inherent to such processes, methods, products, or devices.

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.

The details will be described below in conjunction with specific embodiments.

Referring to FIG. 1 , 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. Each communication network formed by IoT wireless access points in different frequency bands does not interfere with each other. IoT terminals include battery-powered IoT terminals and IoT terminals powered by power supplies. Among them, the IoT terminal powered by the power supply has a routing algorithm embedded therein. When an IoT terminal that needs to be powered by a power source is used as a repeater function, the embedded routing algorithm is enabled, and then the IoT terminal acts as both objects. The networked terminal also acts as a repeater. Specifically, 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. When 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.

Referring to FIG. 2A, FIG. 2A is a schematic flowchart of a method for processing an abnormality of an Internet of Things wireless access point in a wireless sensor network according to an embodiment of the present invention, which is applied to a wireless sensor network, where the wireless sensor network includes an Internet of Things gateway, An IoT wireless access point communicatively coupled to the IoT gateway, the IoT wireless access point comprising a first IoT wireless access point, a second IoT wireless access point, and a third object connection The network wireless access point, as shown in FIG. 2A, includes:

S201. The IoT gateway acquires an uplink bandwidth of the second Internet of Things (ICI) wireless access point and an uplink bandwidth of the third Internet of Things (ICI) wireless access point when detecting that the first repeater is abnormal.

It can be understood that 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.

For example, if 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.

For example, if the IoT wireless access point receives the status abnormality message reported by the first repeater, the first repeater status may be abnormal.

Among them, the first Internet of Things wireless access point, the second Internet of Things wireless access point and the third IoT wireless access point have built-in routing algorithms, and the first, second and third IoT wireless access points Inter-communication, routing algorithms include frequency hopping and frequency division multiplexing algorithms, as well as time division multiplexing algorithms.

S202. When it is detected that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway accesses the first Internet of Things wireless access Sending a first cache data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point;

The cached data may refer to the uplink data of the IoT terminal mounted by the first Internet of Things wireless access point received by the first IoT wireless access point in the previous beacon period of the current beacon period. Part of the uplink data is not uploaded to the IoT wireless access point synchronously in the previous beacon period due to the abnormal state of the first IoT wireless access point, so it is cached in the first Internet of Things wireless access point.

S203. The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.

In a specific implementation, the second IoT wireless access point may receive the cached data sent by the first Internet of Things wireless access point in the beacon period of the kth network beacon, and in the k+1th network beacon The cache data is sent to the IoT gateway in the beacon period. Correspondingly, the IoT gateway receives the cached data in the beacon period of the k+1th network beacon, where k is a positive integer.

It can be seen that, in the embodiment of the present invention, when the state network gateway detects that the state of the first Internet of Things wireless access point is abnormal, the uplink bandwidth of the second Internet of Things wireless access point and the third Internet of Things wireless access are obtained. The uplink bandwidth of the point, when detecting that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends the first cache to the first Internet of Things wireless access point a data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send the cached data to the second Internet of Things wireless access point, and finally, to receive the cached data sent by the second Internet of Things wireless access point . The higher the uplink bandwidth, the higher the uplink data transmission rate of the Internet of Things wireless access point, so the IoT gateway sends the cached data to the second Internet of Things wireless access by the first IoT wireless access point indicating the abnormal state. Point, so that the cached data can be reported to the second IoT wireless access point to the user with the lowest delay loss, thereby minimizing the delay caused by the abnormal state of the first IoT wireless access point, and avoiding the The cached data of an IoT wireless access point is discarded, which is beneficial to improve the integrity and real-time performance of the data transmission when the wireless sensor network IoT wireless access point is abnormal.

In one example, the method further includes:

When detecting that the uplink bandwidth of the second Internet of Things wireless access point is smaller than the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends a second to the first Internet of Things wireless access point Cache a data migration instruction, where the second cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the third Internet of Things wireless access point;

The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the third Internet of Things wireless access point.

In one example, the method further includes:

It can be seen that, in this example, after receiving the cached data of the first IoT wireless access point in an abnormal state, the IoT gateway sends an unmount command to the first Internet of Things wireless access point to indicate the first Internet of Things wireless connection. The IoT terminal is unmounted to prevent the uplink data of the IoT terminal from being transmitted to the first IoT wireless access point, causing data accumulation, affecting the stability of the wireless sensor network, and facilitating the improvement of the wireless sensor network. Stability when an Internet wireless access point is abnormal.

In an example, after the IoT gateway sends the unmount command to the first IoT wireless access point, the method further includes:

The IoT gateway sends a first device mount command to the third IoT wireless access point, where The first device mount command includes a device identifier of the IoT terminal that is unmounted by the first Internet of Things wireless access point, and the device identifier is used to mount the third Internet of Things wireless access point An IoT terminal that is unmounted by an IoT wireless access point.

In this example, after the IoT terminal mounted on the first IoT wireless access point is unmounted, the IoT terminal will determine the idle network time slot of the network beacon after receiving the network beacon. And sending an incoming network frame to the third IoT wireless access point that sends the network beacon in the idle network time slot, and the third Internet of Things wireless access point acquires the incoming network frame, and determines the device identifier of the Internet of Things terminal according to the incoming network frame, and When the device identifier set carried in the first device mount command is consulted, and the device identifier set includes the device identifier, the network identifier is assigned to the Internet of Things terminal, and the network number is sent to the Internet of Things terminal to the preset network time slot. After the network access operation is completed, the subsequent IoT terminal can determine the network time slot for transmitting the uplink data according to its own network number after receiving the network beacon completion time synchronization.

It can be seen that, in this example, the IoT gateway can also instruct the third IoT wireless access point to mount the IoT terminal of the first IoT wireless access point to be unmounted, thereby releasing the first Internet of Things wireless access point in time. The mounted IoT terminal 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.

It can be seen that, in this example, the Internet of Things gateway can also instruct the second IoT wireless access point to mount the IoT terminal of the first IoT wireless access point to be unmounted, thereby releasing the first Internet of Things wireless access point in time. The mounted IoT terminal 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.

For the same as the embodiment shown in FIG. 2A, please refer to FIG. 3. FIG. 3 is a schematic flowchart of another method for processing an Internet of Things wireless access point abnormality in a wireless sensor network according to an embodiment of the present invention. In the wireless sensor network, the wireless sensor network includes an Internet of Things gateway, an Internet of Things wireless access point communicatively coupled to the IoT gateway, and the Internet of Things wireless access point includes a first Internet of Things wireless access point The second Internet of Things wireless access point and the third Internet of Things wireless access point, as shown in the figure, the wireless sensor network Internet of things wireless access point exception processing method includes:

S301. The IoT gateway acquires an uplink bandwidth of the second Internet of Things (ICI) wireless access point and an uplink bandwidth of the third Internet of Things (ICI) wireless access point when detecting that the first relay device is abnormal.

S302. When it is detected that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway accesses the first Internet of things wireless access Sending a first cache data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point;

S303. The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.

S304, the IoT gateway sends an unmount command to the first Internet of Things wireless access point, where the unmounting instruction is used to instruct the first Internet of Things wireless access point to unmount the IoT terminal. .

S305, the IoT gateway sends a first device mount command to the third IoT wireless access point, where the first device mount command includes the first IoT wireless access point unmounting A device identifier of the networked terminal, where the device identifier is used by the third Internet of Things wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.

It can be seen that, in the embodiment of the present invention, when the state network gateway detects that the state of the first Internet of Things wireless access point is abnormal, the uplink bandwidth of the second Internet of Things wireless access point and the third Internet of Things wireless access point are obtained. Uplink bandwidth, when detecting that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends the first cached data to the first Internet of Things wireless access point The migration instruction, the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send the cached data to the second Internet of Things wireless access point, and finally, to receive the cached data sent by the second Internet of Things wireless access point. The higher the uplink bandwidth, the higher the uplink data transmission rate of the Internet of Things wireless access point, so the IoT gateway sends the cached data to the second Internet of Things wireless access by the first IoT wireless access point indicating the abnormal state. Point so that the cached data can be depleted with the lowest latency The second Internet of Things wireless access point reports to itself to minimize the delay caused by the abnormal state of the first Internet of Things wireless access point, and to prevent the cached data of the first Internet of Things wireless access point from being discarded. It is beneficial to improve the integrity and real-time performance of data transmission when the wireless sensor network IoT wireless access point is abnormal.

In addition, after receiving the cached data of the first Internet of Things wireless access point in an abnormal state, the IoT gateway sends an unmount command to the first Internet of Things wireless access point to indicate that the first Internet of Things wireless access point is unmounted. The IoT terminal is installed to prevent the uplink data of the IoT terminal from being transmitted to the first IoT wireless access point, causing data accumulation, affecting the stability of the wireless sensor network, and improving the abnormality of the wireless sensor network repeater. Time stability.

In addition, the IoT gateway can also instruct the third IoT wireless access point to mount the IoT terminal that the first IoT wireless access point unmounts, thereby unloading the first IoT wireless access point in time. The networked terminal 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.

FIG. 4 is a schematic flowchart of another method for processing an Internet of Things wireless access point exception in a wireless sensor network according to an embodiment of the present invention. In the wireless sensor network, the wireless sensor network includes an Internet of Things gateway, an Internet of Things wireless access point communicatively coupled to the IoT gateway, and the Internet of Things wireless access point includes a first Internet of Things wireless access point The second Internet of Things wireless access point and the third Internet of Things wireless access point, as shown in the figure, the wireless sensor network Internet of things wireless access point exception processing method includes:

S401. The IoT gateway acquires an uplink bandwidth of the second Internet of Things (ICI) wireless access point and an uplink bandwidth of the third Internet of Things (ICI) wireless access point when detecting that the first repeater is abnormal.

S402. When detecting that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway accesses the first Internet of things wireless access Sending a first cache data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point;

S403. The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.

S404. The IoT gateway sends an unmount command to the first IoT wireless access point, where the unmount command is used to indicate that the first Internet of Things wireless access point is unmounted. end.

S405. The IoT gateway sends a second device mount command to the second IoT wireless access point, where the second device mount command includes the first IoT wireless access point unmounting a device identifier of the networked terminal, where the device identifier is used by the second Internet of Things wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.

In addition, the IoT gateway can also instruct the second IoT wireless access point to mount the IoT terminal of the first IoT wireless access point to unmount, thereby unloading the first IoT wireless access point in time. The networked terminal 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 above description mainly introduces the solution of the embodiment of the present invention from the perspective of the method side execution process. Understandably, in order to achieve the above functions, the IoT gateway includes a corresponding hard function for performing various functions. Component structure and / or software module. Those skilled in the art will readily appreciate that 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 embodiments of the present invention may divide the functional units of the Internet of Things gateway according to the foregoing method. For 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.

In the case of employing an integrated unit, FIG. 5A shows a possible structural diagram of the Internet of Things gateway involved in the above embodiment. The Internet of Things gateway 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 gateway. For example, the processing unit 502 is configured to support the Internet of Things gateway to perform steps S201 to S203 in FIG. 2A, steps S301 to S305 in FIG. 3, and steps in FIG. S401 to S405 and/or other processes for the techniques described herein. The communication unit 503 is used to support communication between the IoT gateway and other devices, such as communication with an IoT wireless access point. The Internet of Things gateway may further include a storage unit 501 for storing program codes and data of the Internet of Things gateway.

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 Internet of Things wireless access point and a third Internet of Things wireless access point when the first repeater state is abnormal. An uplink bandwidth; and for detecting, when the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to an uplink bandwidth of the third Internet of Things wireless access point, to the first through the communication unit 503 The IoT wireless access point sends a first cache data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point And receiving, by the communication unit 503, cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.

In one possible example, the processing unit 502 is further configured to: when detecting that an uplink bandwidth of the second Internet of Things wireless access point is smaller than an uplink bandwidth of the third Internet of Things wireless access point, by using the communication The unit 503 sends a second cache data migration instruction to the first Internet of Things wireless access point, where the second cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the first And a third Internet of Things wireless access point, and configured to receive, by the communication unit 503, cache data of the first Internet of Things wireless access point sent by the third Internet of Things wireless access point.

In one possible example, the processing unit 502 is further configured to send, by using the communication unit 503, an unmount command to the first IoT wireless access point, where the unmount command is used to indicate the An IoT terminal that is unmounted by an IoT wireless access point.

In one possible example, the processing unit 502 is further configured to send the third through the communication unit 503 after the unloading instruction is sent to the first IoT wireless access point by the communication unit 503. The IoT wireless access point sends a first device mount command, where the first device mount command includes a device identifier of the IoT terminal that is unmounted by the first Internet of Things wireless access point, and the device identifier is used for The third Internet of Things wireless access point mounts the IoT terminal that is unmounted by the first Internet of Things wireless access point.

In one possible example, the processing unit 502 is further configured to send the second through the communication unit 503 after the unloading instruction is sent to the first IoT wireless access point by the communication unit 503. The second device mounting command is sent by the IoT wireless access point, and the second device mounting instruction includes a device identifier of the IoT terminal that is unmounted by the first Internet of Things wireless access point, and the device identifier is used for The second Internet of Things wireless access point mounts the first Internet of Things wireless access point to hang IoT terminal.

When the processing unit 502 is a processor, the communication unit 503 is a communication interface, and the storage unit 501 is a memory, the Internet of Things gateway according to the embodiment of the present invention may be the Internet of Things gateway shown in FIG. 5B.

Referring to FIG. 5B, the Internet of Things gateway 510 includes a processor 512, a transceiver 513, and a memory 511. Optionally, the Internet of Things gateway 510 may further 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. 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 of the present invention shown in FIG. 5A or FIG. 5B can also be understood as a device for the Internet of Things gateway, which is not limited in the embodiment of the present invention.

Embodiments of the present invention also provide an Internet of Things gateway, the IoT gateway including one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are Configured to be executed by the one or more processors, the program comprising instructions for performing any of the steps of the above method embodiments.

The embodiment of the present invention further 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 execute as in the method embodiment described above Some or all of the steps described.

The embodiment of the invention further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the method embodiment as described above Some or all of the steps described in this. The computer program product can be a software installation package.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

In the several embodiments provided herein, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, 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. In addition, 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.

In addition, 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, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable memory. Based on such understanding, 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.

One of ordinary skill in the art can understand that all or part of the various methods of the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable In the memory, the memory may include: a flash disk, a read-only memory (English: Read-Only Memory, ROM for short), a random access memory (English: Random Access Memory, RAM for short), a magnetic disk or an optical disk.

The embodiments of the present invention have been described in detail above, and the principles and implementations of the present invention are described in detail herein. The description of the above embodiments is only for helping to understand the method of the present invention and its core ideas; It should be understood by those skilled in the art that the present invention is not limited by the scope of the present invention.

Claims

A wireless sensor network IoT wireless access point exception processing method, characterized in that the method comprises:

The IoT gateway acquires the uplink bandwidth of the second Internet of Things wireless access point and the uplink bandwidth of the third Internet of Things wireless access point when detecting that the first repeater state is abnormal;

When it is detected that the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, the Internet of Things gateway sends the first Internet of Things wireless access point a first cache data migration instruction, where the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point;

The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.
The method of claim 1 further comprising:

When detecting that the uplink bandwidth of the second Internet of Things wireless access point is smaller than the uplink bandwidth of the third Internet of Things wireless access point, the IoT gateway sends a second to the first Internet of Things wireless access point Cache a data migration instruction, where the second cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the third Internet of Things wireless access point;

The IoT gateway receives the cache data of the first Internet of Things wireless access point sent by the third Internet of Things wireless access point.
The method according to claim 1 or 2, wherein the method further comprises:

The IoT gateway sends an unmount command to the first Internet of Things wireless access point, where the unmount command is used to instruct the first Internet of Things (IoT) wireless access point to unmount the IoT terminal.
The method according to claim 3, wherein after the IoT gateway sends the unmount command to the first Internet of Things wireless access point, the method further includes:

Transmitting, by the IoT gateway, a first device mounting instruction to the third IoT wireless access point, where the first device mounting instruction includes an IoT terminal that is unmounted by the first Internet of Things wireless access point The device identifier is used by the third IoT wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.
The method according to claim 3, wherein after the IoT gateway sends the unmount command to the first Internet of Things wireless access point, the method further includes:

The IoT gateway sends a second device mount command to the second Internet of Things wireless access point, where the second device mount command includes the first Internet of Things wireless access point unmounting the Internet of Things terminal The device identifier is used by the second Internet of Things wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.
An Internet of Things gateway is characterized in that it is applied to a wireless sensor network, and the Internet of Things gateway comprises a processing unit and a communication unit.

The processing unit is configured to acquire, by the communication unit, an uplink bandwidth of the second Internet of Things wireless access point and an uplink bandwidth of the third Internet of Things wireless access point when detecting that the first repeater state is abnormal; When the uplink bandwidth of the second Internet of Things wireless access point is greater than or equal to the uplink bandwidth of the third Internet of Things wireless access point, to the first Internet of Things wireless access point by using the communication unit Sending a first cache data migration instruction, the first cache data migration instruction is used to instruct the first Internet of Things wireless access point to send cached data to the second Internet of Things wireless access point, and The communication unit receives the cache data of the first Internet of Things wireless access point sent by the second Internet of Things wireless access point.
The IoT gateway according to claim 6, wherein the processing unit is further configured to: when detecting that an uplink bandwidth of the second Internet of Things wireless access point is smaller than that of the third Internet of Things wireless access point Upstream bandwidth, sending, by the communication unit, a second cache data migration instruction to the first IoT wireless access point, where the second cache data migration instruction is used to indicate that the first Internet of Things wireless access point is to be cached And transmitting data to the third IoT wireless access point, and for receiving, by the communication unit, cache data of the first Internet of Things wireless access point sent by the third Internet of Things wireless access point.
The IoT gateway according to claim 6 or 7, wherein the processing unit is further configured to send, by the communication unit, a unmount command to the first Internet of Things wireless access point, the unmounting The load instruction is used to instruct the first Internet of Things (IoT) wireless access point to unmount the IoT terminal.
The Internet of Things gateway according to claim 8, wherein the processing unit is further configured to pass the communication unit after sending the unmount command to the first Internet of Things wireless access point by the communication unit. Sending, to the third Internet of Things wireless access point, a first device mount command, where the first device mount command includes a device identifier of the IoT terminal that is unmounted by the first Internet of Things wireless access point, The device identifier is used by the third IoT wireless access point to mount the IoT terminal of the first Internet of Things wireless access point to be unmounted.
The Internet of Things gateway according to any one of claims 6 to 9, wherein the processing unit is further used after the unloading command is sent to the first Internet of Things (IoT) wireless access point by the communication unit. Transmitting, by the communication unit, a second device mounting instruction to the second Internet of Things wireless access point, where the second device mounting instruction includes the first Internet of Things (IoT wireless access point) to be unmounted The device identifier is used by the second Internet of Things wireless access point to mount the IoT terminal that is unmounted by the first Internet of Things wireless access point.