WO2019010784A1

WO2019010784A1 - Method and system for split backup of internet of things repeater

Info

Publication number: WO2019010784A1
Application number: PCT/CN2017/100564
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: 2017-07-14
Filing date: 2017-09-05
Publication date: 2019-01-17
Also published as: CN107483228A; CN107483228B

Abstract

Disclosed in the present invention is a method for the slit backup of an Internet of Things repeater, comprising: acquiring a backup repeater of a first repeater and backing up cache data of the first repeater to the backup repeater; when detected that the first repeater experiences an error, acquiring the priority of the backup repeater according to performance parameters of the backup repeater; ranking the priority level of the backup repeater, and when the priority of a third repeater is lower than the priority of a second repeater, using the third repeater as a backup repeater for the second repeater; dividing Internet of Things terminals that are connected to the first repeater into a first terminal set and a second terminal set, and switching the Internet of Things terminals in the first terminal set to the second repeater, while switching the Internet of Things terminals in the second terminal set to the third repeater. By means of the present invention, anti-error capabilities may be improved, thus ensuring that transmitted data is not lost and that a network operates normally.

Description

Method and system for split backup of internet of things repeater

Technical field

The present invention relates to the field of Internet of Things technologies, and in particular, to a method and system for split-type backup of an Internet of Things repeater.

Background technique

The wave of the Internet of Things affects all aspects of society and life. Due to the popularity of short-range communication technologies and products, more and more IoT terminals form LANs or WANs through IoT gateway devices. For example, in some family scenarios, many IoT terminals in the family form a home network, such as mobile terminals, game consoles, and other household appliances such as televisions, computers, electronic lock security doors, refrigerators, and washing machines, etc. Access to this network to achieve smart home.

A repeater is a system that connects network lines. It mainly performs the functions of the physical layer. It is responsible for transmitting information bit by bit on the physical layer of two nodes, completing the signal copying, adjusting and amplifying functions, thereby extending the length of the network. . The premise of the normal operation of the IoT terminal is that the communication with the IoT platform remains normal. When the communication connection is disconnected, the IoT terminal cannot send service data to the service platform, and the service platform cannot monitor the working state of the IoT terminal. In the event of a repeater failure, the network signal is interrupted, resulting in loss of transmitted data and technical problems with the IoT terminal operating abnormally.

Summary of the invention

A first aspect of an embodiment of the present invention provides a method for split backup of an Internet of Things repeater, the method being based on a repeater subsystem, the repeater subsystem including at least a first repeater and a second a repeater and a third repeater, the backup repeater of the first repeater comprising at least the second repeater and the third repeater, the method comprising:

Obtaining a backup repeater of the first repeater, and backing up the cached data of the first repeater to the backup repeater;

When detecting that the first repeater is faulty, acquiring a priority of the backup repeater according to performance parameters of the backup repeater;

Sorting priorities of the backup repeaters, and when the priority of the third repeater is lower than the priority of the second repeater, the third repeater is used as the first Backup repeater for two repeaters;

The Internet of Things terminal connected to the first repeater is divided into a first terminal set and a second terminal set;

Switching the Internet of Things terminal in the first terminal set to the second repeater, and switching the Internet of Things terminal in the second terminal set to the third repeater;

The cached data of the second repeater is sent to the third repeater.

Optionally, the method further includes:

When the data traffic of the first repeater is less than or equal to the preset traffic threshold, determining that the first repeater is faulty.

In one embodiment, before the detecting that the first repeater fails, the method further includes:

When the size of the buffered data of the first repeater reaches a preset capacity threshold or when the time recorded by the timer reaches a preset backup interval, according to performance parameters of the backup repeater of the first repeater Calculating a priority of the backup repeater, and backing up cached data of the first repeater according to a priority of the backup repeater.

The performance parameters include transmission bandwidth occupancy, bit error rate, and/or packet loss rate.

In one of the embodiments, the Internet of Things terminal connected to the first repeater is divided into a first terminal set and a second terminal set, including:

Obtaining a data type of the Internet of Things terminal connected to the first repeater;

Determining, according to the data type, the first terminal set and the Internet of Things terminal included in the second terminal set.

In one embodiment, the switching the IoT terminal in the first terminal set to the second relay, and switching the Internet of Things terminal in the second terminal set to the third Relays, including:

Turning on radio frequency functions of the second repeater and the third repeater;

Obtaining the device identifier of the Internet of Things terminal connected to the first repeater;

Generating a device authentication code according to the device identifier;

Transmitting, to the second repeater, a device authentication code generated by the Internet of Things terminal in the first terminal set, and transmitting a device authentication code generated by the Internet of Things terminal in the second terminal set to the third Repeater

The second repeater and the third repeater determine, when receiving the connection request of the Internet of Things terminal, whether the device identifier of the Internet of Things terminal that initiates the connection request matches the device authentication code;

If the match is successful, connect to the IoT terminal.

In one embodiment, the determining, by the data type, the first terminal set and the second terminal set, the Internet of Things terminal includes:

Assigning, by the first relay device, the data type of the Internet of Things terminal connected to the first relay device to the first terminal set corresponding to the uplink data and the downlink data, and using the data type as the uplink data or the downlink data corresponding to the data type a networked terminal is allocated to the second terminal set;

After the sending the cached data of the second repeater to the third repeater, the method further includes:

Generating a data report according to the device authentication code of the Internet of Things terminal and the data type.

The preset verification information of the Internet of Things terminal, that is, the device identification of the Internet of Things terminal, refers to the identification information embedded in the IoT terminal device chip for distinguishing it from other devices, and cannot be changed after the device leaves the factory, including the serial number of the manufacturer. Information such as the model of the device and the MAC address of the device. The device authentication code is generated according to the device identification information, that is, the information is converted into a character coded form, such as a specific format such as "serial number-model-MAC address", which is convenient for other devices to read.

Optionally, the evaluation indicator of the backup repeater is obtained, and the number of the Internet of Things terminals allocated by the second repeater and the third repeater is determined according to the ratio of the evaluation indicators. The performance parameters of the evaluation indicator include: transmission bandwidth occupancy rate, bit error rate, and packet loss rate.

Optionally, it is divided according to the degree of association between the Internet of Things terminal and the first repeater. The Internet of Things terminal closely associated with the first repeater is divided into a first terminal set, and the rest is divided into a second terminal set.

Optionally, detecting a signal strength of the first repeater; when the signal strength is less than a preset signal threshold, setting a received data waiting time to a second transmission duration; determining whether the second transmission duration is within the second transmission duration Receiving data sent by the Internet of Things terminal, if yes, setting the received data waiting time to the first transmission duration, and if not, confirming that the first relay is faulty.

A second aspect of the embodiments of the present invention provides a system for split backup of an Internet of Things repeater, the system is based on a repeater subsystem, and the repeater subsystem includes at least a first repeater and a second a repeater and a third repeater, the backup repeater of the first repeater comprising at least the second repeater and the third repeater, the system comprising:

a first backup module, configured to acquire a backup repeater of the first repeater, and back up the cached data of the first repeater to the backup repeater;

a priority obtaining module, configured to acquire a priority of the backup repeater according to a performance parameter of the backup repeater when detecting that the first repeater fails;

a repeater setting module, configured to sort priorities of the backup repeaters, when the priority of the third repeater is lower than a priority of the second repeater, a triple repeater as a backup repeater of the second repeater;

a terminal dividing module, configured to divide the Internet of Things terminal connected to the first repeater into a first terminal set and a second terminal set;

a terminal switching module, configured to switch the Internet of Things terminal in the first terminal set to the second repeater, and switch the Internet of Things terminal in the second terminal set to the third repeater;

And a second backup module, configured to send the cached data of the second repeater to the third repeater.

In a third aspect, an embodiment of the present invention provides a terminal, including: a processor, a memory, an input device, and an output device, where the processor is configured to execute an instruction according to the method described in the first aspect of the embodiment of the present invention.

In a fourth aspect, an embodiment of the present invention provides another terminal, including: a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory, and are The configuration is performed by the processor, the program comprising instructions for performing the method as described in the first aspect of the embodiments of the present invention.

In a fifth aspect, an embodiment of the present invention provides a computer readable storage medium, wherein the computer readable storage medium is configured to store a computer program, wherein the computer program causes a computer to perform the first aspect of the embodiment of the present invention. Some or all of the steps described.

In a sixth aspect, an embodiment of the present invention 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 execute Part or all of the first aspect described in the first embodiment of the invention step. The computer program product can be a software installation package.

It can be understood that after the above-mentioned IoT repeater split backup method and system are adopted, the backup repeater of the first repeater backs up the cached data on the first repeater, when the first repeater appears In the event of a failure, the priority of the backup repeater is obtained according to the performance parameters of the backup repeater. Since the priority of the second repeater is higher than that of the third repeater, the third repeater is the second repeater. Backup repeater that caches cached data on the second repeater. The IoT terminal connected to the first repeater is divided into a first terminal set and a second terminal set, and the IoT terminal in the first terminal set is switched to the second repeater, and the second terminal set is The IoT terminal in the switch is switched to the third repeater. Therefore, the data in the failed first repeater and the connected Internet of Things terminals can be migrated to other normally working repeaters, avoiding the failure of the repeater and causing the Internet of Things to improve the anti-fault capability of the Internet of Things. To ensure continuous delivery of network services and complete the smooth transfer of data.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

among them:

1 is a network architecture diagram of an Internet of Things according to an embodiment of the present invention;

2 is a structural diagram of a backup system of an Internet of Things repeater according to an embodiment of the present invention;

FIG. 3 is a flowchart of a split-type backup method for an Internet of Things repeater according to an embodiment of the present invention;

4 is a structural diagram of a split-type backup system for an Internet of Things repeater according to an embodiment of the present invention;

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

Detailed ways

The terms "comprising" and "having", and any variations thereof, appear in the description, the claims, and the drawings 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 optionally also includes steps or units not listed, or alternatively For these processes, methods, products or Other steps or units inherent to the device. Moreover, the terms "first," "second," and "third," etc. are used to distinguish different objects, and are not intended to describe a particular order.

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 obvious that the described embodiments are only a part of the embodiments of the present invention, but not all 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.

In order to solve the technical problem of the transmission data loss and the network operation abnormality when the relay is faulty, in one embodiment, the first aspect of the embodiment of the present invention provides a processing method of the fault repeater. Implementation of the method may rely on a computer program that can run on a von Neumann system-based computer device, which can be a repeater's driver manager or virtual device manager.

The network architecture of the Internet of Things shown in Figure 1 includes servers, gateways, M access points, N repeaters, and several IoT terminals. The access points are connected via Ethernet or 2G, 3G, 4G, etc. The gateway is connected, the repeater is connected with a plurality of IoT terminals and an access point, and the IoT terminal transmits the collected data through the repeater, and the data is exchanged through the access point and the gateway device uploading server.

And the computer system is based on a repeater subsystem, the repeater subsystem shown in FIG. 2 includes at least a first repeater, a second repeater, and a third repeater, wherein the backup of the first repeater The node includes at least a second repeater and a third repeater. The first repeater and the backup repeater are repeaters at the same node, and have the same function, and can be connected as a repeater to the Internet of Things. And the backup repeater of the first repeater is used to back up the cached data of the first repeater. The backup repeater can be a working repeater or an idle repeater. It should be noted that in order to improve the anti-fault capability of the network, there may be more than two backup repeaters, and the cache data of the first repeater is simultaneously backed up to multiple backup repeaters.

Specifically, as shown in FIG. 3, a method for backing up an Internet of Things repeater includes:

Step S101: Acquire a backup repeater of the first repeater, and back up the cached data of the first repeater to the backup repeater.

The repeater is mainly used to enhance the coverage of the wireless signal of the access point AP. For example, the repeater can be a Wi-Fi signal amplifier. Presetting a backup repeater for the repeater in the Internet of Things network environment, obtaining a repeater in the repeater subsystem, obtaining the first repeater comprising at least a second repeater and a third repeater Repeater. Obtaining the backup repeater of the first repeater, and backing up the data cached on the first repeater to the backup repeater, that is, reading the stored data on the second repeater and the third repeater. Obtained The cache data of the first repeater is obtained to ensure that the data is not lost. The cached data on the first repeater includes data collected by the Internet of Things terminal, and also data sent by the server to the Internet of Things terminal.

Optionally, when the capacity of the cached data of the first repeater reaches a preset capacity threshold or when the time recorded by the timer reaches a preset backup interval, performing backup of the cached data of the first repeater to the backup is performed. The steps of the relay. Therefore, it is avoided that the backup failure cannot be made when the first repeater fails, and the backup fails, and the anti-fault capability is improved.

That is, when the capacity of the cached data is greater than or equal to the load threshold, the repeater subsystem backs up it. Or set the backup interval threshold, and back up the cached data at intervals. This reduces the running load and network maintenance overhead of the IoT network caused by real-time backup, and avoids data loss caused by the first repeater failure.

For example, if the preset capacity threshold is 10M, the backup of the second repeater is performed when the capacity of the cached data is 10M; if the preset backup interval is 5 minutes, the first repeater is used every 5 minutes. The cached data on it is backed up. Further, when the capacity of the cached data of the first repeater reaches the preset capacity threshold or the time recorded by the timer reaches the preset backup interval, the performance parameter of the backup repeater of the first repeater is calculated. The priority of the backup repeater; the cached data of the first repeater is backed up according to the priority of the backup repeater. Back up based on priority to improve backup efficiency.

The performance parameters of the backup repeater include: processing unit utilization, memory utilization, load/output information for the input/output, and the number of backup jobs that are running. Specifically, the backup repeater may first establish a data structure including the foregoing four types of information, then collect load sampling information of the backup repeater itself, record the load sampling information into the established data structure, and then record through the local Ethernet. The load sampling information is sent to the processor in the Internet of Things for handling the fault; the processor performs weighting calculation according to the performance parameters of the backup repeater, and compares the values in the preset priority to determine the performance of the backup repeater. parameter. The data structure may be a linked list or an array. The specific form of the data structure is not limited in the embodiment of the present invention.

When the processing unit utilization is C, the memory utilization is M, the number of running backup jobs is J, and the input/output load information is IO, the primary server calculates the processing unit utilization, memory utilization, and input/ of the backup server. The weighted sum of the output load information and the number of backup jobs being run, the priority L of the backup repeater can be:

L=b1*C+b2*W+b3*D+b4*IO (1)

In equation (1), b1, b2, b3, and b4 represent the weights of C, M, J, and IO in calculating the priority, respectively, b1+b2+b3+b4=1. The specific value of bi(i=1, 2, 3, 4) can be set according to the running condition of the server or the recommended setting. For example, set b1 = 0.3, b2 = 0.3, b3 = 0.2, and b4 = 0.2.

For example, in an Internet of Things, there are 4 repeaters at one node, namely repeater 1, repeater 2, repeater 3, and repeater 4, wherein repeater 3 is the first one. The relay calculates the priority of the repeater 1, the repeater 2, and the repeater 4 according to the above formula (1), assuming that b1 = 0.4, b2 = 0.3, and b3 = 0.3, thereby obtaining the priority of the repeater 1. 89, the priority of the repeater 2 is 75, and the priority of the repeater 4 is 67. The repeater 1 performs backup first, and the repeater 2 performs backup after the backup is completed. After the backup is completed, the repeater 4 performs the backup. Backup reduces the operational load and network maintenance overhead of the IoT network caused by simultaneous backup and improves backup efficiency.

Step S102: When detecting that the first repeater fails, obtain the priority of the backup repeater according to the performance parameter of the backup repeater.

In this embodiment, when it is detected that the first repeater fails, the priority of the backup repeater should be determined, and the backup is performed according to the priority, thereby improving the backup efficiency.

For example, in an Internet of Things, there are 4 repeaters at one node, namely repeater 1, repeater 2, repeater 3, and repeater 4, wherein repeater 3 is the first one. The relay communicates in the network, and the other three repeaters are used as backup repeaters of the repeater 3. In a certain communication process, the repeater 3 fails, and the priorities of the repeater 1, the repeater 2, and the repeater 4 are calculated at this time. It is assumed that the calculation is performed according to the above formula (1), where b1 = 0.4, b2 = 0.3, and b3 = 0.3, so that the priority of the repeater 1 is 89, and the priority of the repeater 2 is 75, the repeater 4 The priority is 67, the three calculation results are sorted, the repeater 1 with the highest priority is selected as the second repeater, and the repeater 2 and the repeater 4 are used as the backup repeater of the repeater 1. . Thereby ensuring the normal communication of the repeater and improving the reliability of the Internet of Things.

Optionally, detecting a signal strength of the first repeater; when the signal strength is less than a preset signal threshold, setting a receive data waiting time to a second transmission duration; determining whether the IoT terminal is sent within the second transmission duration The data, if yes, sets the receive data waiting time to the first transmission duration, and if not, confirms that the first repeater has failed.

That is, when the signal strength is lower than the preset information threshold, it is determined within the second transmission time period whether Can receive the data sent by the IoT terminal. If it is, the signal is weak, but the first repeater has no problem; if not, the first repeater may be faulty, that is, prevent it from happening. Improve the anti-fault capability of IoT repeaters. The IoT terminal connected to the first repeater can be allocated to the backup repeater to extend the waiting time of receiving data, thereby reducing the burden of the first repeater and improving data transmission efficiency.

Optionally, determining, according to the data traffic size, that the first repeater fails when the data traffic of the first repeater is less than or equal to the preset traffic threshold.

That is to say, when the data traffic is less than or equal to the preset traffic threshold, it indicates that the first repeater may be faulty, that is, prevent the problem from occurring, and improve the anti-fault capability of the Internet of Things repeater. The IoT terminal connected to the first repeater is allocated to the backup repeater in advance, thereby prolonging the waiting time of receiving data, thereby reducing the burden of the first repeater and improving data transmission efficiency.

For example, if the preset traffic threshold is 60%, when the data traffic of the first repeater is 50%, the first repeater fault is determined, and then the priority of the backup repeater is obtained, according to the priority level. Make a backup of the data.

Further, the order of the backups is performed according to the priority level, so that the network bandwidth is not affected, and the network operation load is reduced. It is assumed that the priority of the backup repeater is from the highest to the lowest in the order of the backup repeater. If the identifier of the backup repeater is 1 to n, the backup repeater with the identifier 1 is the highest priority, and the identifier is n. The backup repeater has the lowest priority. If the preset load threshold is 10M, the backup of the second repeater is performed when the capacity of the cached data is 10M, when the backup of the second repeater is completed, the third repeater is backed up, and so on. Since the capacity of the transmitted data is uncontrollable, the second repeater starts backing up as long as the capacity of the cached data reaches a preset load threshold.

Step S103: Sort the priorities of the backup repeaters, and when the priority of the third repeater is lower than the priority of the second repeater, use the third repeater as the backup of the second repeater. Relay.

After obtaining the priority of the backup repeater, the backup repeaters are sorted according to the priority level, and the second repeater has a higher priority than the third repeater, and the second repeater takes over the first The repeater works while the third repeater acts as a backup repeater for the second repeater.

Step S104: Divide the Internet of Things terminal connected to the first repeater into a first terminal set and a second terminal set.

Optionally, obtaining a data type of the Internet of Things terminal connected to the first repeater; according to the data type The first terminal set and the Internet of Things terminal included in the second terminal set are determined. That is to say, classifying the Internet of Things terminals connected to the first repeater according to the data type can improve the parallel processing performance and backup performance of the Internet of Things backup repeater system.

Step S105: Switching the Internet of Things terminal in the first terminal set to the second repeater, and switching the Internet of Things terminal in the second terminal set to the third repeater.

The first backup repeater backs up the first repeater in a manner of multiple backups, so that when the first repeater fails, the first cached data on the first repeater is not lost, and the selected priority is the highest. The second repeater is connected to the IoT terminal of the first terminal set on the first repeater, and the third repeater is connected as the backup repeater of the second repeater to the second relay on the first repeater. The IoT terminal of the terminal gathers the cached data on the second repeater, and switches the first repeater while backing up the second repeater, thereby improving the parallel processing performance of the IoT backup repeater system and Backup performance.

Step S106: Send the buffer data of the second repeater to the third repeater.

Preferably, when the third relay backs up the second cached data on the second repeater, since the first backup data on the first repeater has been backed up before the first repeater fails, only the first The cached second cached data on the second repeater is backed up to avoid duplicate backups and save backup time. Specifically, the first backup repeater is further configured to set a backup state of the first cached data of the first repeater that is backed up to be backed up; and the third repeater is further configured to obtain a backup of the second repeater. The backup status of the data is backed up to the third repeater with the backup data to be backed up.

Optionally, the radio frequency function of the second repeater and the third repeater is enabled; and the device identifier of the Internet of Things terminal connected to the first repeater is obtained;

Generating a device authentication code according to the device identifier; transmitting the device authentication code generated by the IoT terminal in the first terminal set to the second repeater, and transmitting the device authentication code generated by the IoT terminal in the second terminal set to the third a repeater; the second repeater and the third repeater determine, when receiving the connection request of the Internet of Things terminal, whether the device identifier of the IoT terminal that initiates the connection request matches the device authentication code; if the matching is successful, The Internet of Things terminal connects.

In an optional embodiment, in order to improve the security of the backup data, the IoT terminal should verify the device identifier of the IoT terminal when connecting the relay device, and receive the connection request when the device identifier of the IoT terminal matches successfully. The IoT terminal connects, otherwise if the match fails, the RF function of the backup repeater is turned off.

The IoT terminal is a device that connects the sensing network layer and the transmission network layer in the Internet of Things to collect data and send data to the network layer. Different device identifiers are used to distinguish different devices. For example, the device identifier of the Internet of Things terminal may be the MAC address of the Internet of Things terminal, and the MAC address is also referred to as a physical address or a hardware address, and is used to define the location of the network device, and may also access the date of the network time plus the terminal type or The default naming of the Internet of Things terminal by the computer program may also be a combination of the terminal type and the number, or may be the name saved by the user to the Internet of Things terminal. The IoT terminal on the first repeater is switched to the second repeater, that is to say, the second repeater only connects the IoT terminal on the first repeater that is successfully verified.

In an embodiment, after the first repeater fails, the device identifier of the Internet of Things terminal connected to the first repeater is obtained, where the device identifier is defined in the IoT terminal device chip for distinguishing The identification information of other devices cannot be changed after the device leaves the factory, including the serial number of the manufacturer, the model number of the device, and the MAC address of the device. The device authentication code is generated according to the device identification information, that is, the information is converted into a character coded form, such as a specific format such as "serial number-model-MAC address", which is convenient for other devices to read. After that, the generated device authentication code of the Internet of Things terminal connected to the first terminal set is sent to the second relay, and the generated device authentication code of the Internet of Things terminal connected to the second terminal set is sent to the third relay. Device. When the second repeater and the third repeater receive the connection request of the Internet of Things terminal, acquire the device identifier of the Internet of Things terminal, read the device information from the device, and match the previously saved device authentication code in the Internet of Things. When the device identifier of the terminal matches the saved device authentication code, the IoT terminal can be connected. By saving the device authentication code and directly connecting after determining that the matching is successful, it is possible to avoid re-sending the session information and key pairing of the device when the IoT terminal initiates a connection request to the second repeater and the third repeater. Process to improve the communication efficiency of the Internet of Things.

It should be noted that the device identifier of the Internet of Things terminal and the saved device authentication code may be successfully combined, for example, the serial number, the model number, and the MAC address are all the same; or when only the serial numbers are the same, That is, it is determined that the device identifier matches the saved device authentication code successfully; or if only a certain percentage of the characters in the string match, the matching is considered successful. In this way, the workload of data processing can be reduced and efficiency can be improved.

In this embodiment, after the first repeater fails, the MAC addresses of the second repeater and the third repeater are broadcast to the Internet of Things terminal, and the MAC address is also referred to as a physical address or a hardware address, and is used to define the network. The location of the network device, each repeater has a separate MAC address, and the IoT terminal can initiate a connection request to the second repeater after receiving the MAC address of the second repeater.

It should be noted that the backup repeater can disable the radio function when backing up and only acts as a storage device. When the connection is established with the IoT terminal of the first repeater, the radio function is enabled, and the remaining backup relays are enabled. The device still turns off the RF function, which reduces the memory usage of the system, saves power consumption, and enhances battery life.

The implementation process of the present invention is set forth below in conjunction with a specific application scenario. In this application scenario, there are three repeaters at one node in the Internet of Things, namely, a repeater J, a repeater K, and a repeater L, wherein the repeater J is the first repeater, Communication takes place in the network, and the other two repeaters are used as backup repeaters for repeater J, and only the storage function is enabled.

In a certain communication process, the repeater J fails. According to the priority calculation result of the repeater K and the repeater L, the priority of the repeater K is higher than that of the repeater L, and the repeater K is Set to the second repeater, set the repeater L to the backup repeater of repeater K.

Before the relay J fails, the I/O terminal 1, the Internet of Things terminal 2, and the Internet of Things terminal 3 are connected to the repeater J. At this time, the radio frequency function of the repeater K and the repeater L is turned on. The device K obtains the device authentication codes of the Internet of Things terminal 1 and the Internet of Things terminal 2 as "001-A1070-00010010" and "011-BC79-00101100", respectively, and saves them. The device L of the relay device L for obtaining the device authentication code of the Internet of Things terminal 3 is "001-D1070-00010110". Thereafter, the repeater K broadcasts the MAC address "00-01-6C-06-A6-29" of the repeater K to the Internet of Things terminal 1 and the Internet of Things terminal 2, and the repeater L broadcasts the relay to the Internet of Things terminal 3. The MAC address of the L is "00-01-6C-06-A6-30".

After receiving the MAC address of the repeater K, the Internet of Things terminal 1 and the Internet of Things terminal 2 initiate a connection request to the repeater K according to the MAC address, and the IoT terminal 3 receives the MAC address of the repeater L according to the The MAC address initiates a connection request to the repeater L.

The device K obtains the device identification information of the Internet of Things terminal 1 and the Internet of Things terminal 2 as "001-A1070-00010010" and "011-BC79-00101100" according to the connection request of the Internet of Things terminal 1 and the Internet of Things terminal 2, respectively. Same as the previously saved device authentication code, it is determined that the matching is successful, and the connection of the Internet of Things terminal 1 and the Internet of Things terminal 2 is received. The device identification information of the IoT terminal 3 is “001-A1070-00011010” and “001-D1070-00010110” according to the connection request of the IoT terminal 3, which does not match the previously saved device authentication code. , repeater L and The Internet of Things terminal 3 is not connected. During the operation of the repeater K, the cached data is simultaneously hot-backed to the repeater L to ensure the reliability of the Internet of Things communication.

Optionally, the data type of the Internet of Things terminal connected to the first repeater is the uplink data and the IoT terminal corresponding to the downlink data are allocated to the first terminal set, and the data type is the uplink data or the Internet of Things terminal corresponding to the downlink data. Assigning to the second terminal set; after transmitting the cached data of the second repeater to the third repeater, the method further comprises: generating a data report according to the device authentication code and the data type of the Internet of Things terminal; and turning off the radio frequency function.

In an alternative embodiment, the first set of terminals and the second set of terminals are divided according to the data type of the Internet of Things terminal. The IoT terminal corresponding to the uplink data and the downlink data is allocated to the first terminal set, and the Internet of Things terminal corresponding to the uplink data or the downlink data is allocated to the second terminal set. Therefore, the second repeater with higher priority receives the data and transmits the data, and the third repeater with lower priority only receives the data or transmits the data, thereby improving the data transmission efficiency and reducing the third relay. Performance pressure.

In an optional embodiment, after the backup data is completed, a data report is generated according to the device authentication code and the data type of the Internet of Things terminal, and the radio frequency function is turned off. Backup data can be sorted to prevent mis-transmission and re-transmission, and it is conducive to energy saving and enhanced endurance.

A second aspect of the embodiments of the present invention provides an IoT repeater split backup system. The system is based on a repeater subsystem comprising at least a first repeater, a second repeater and a third repeater, the backup node of the first repeater comprising at least a second repeater and Third repeater. As shown in FIG. 4, the above-mentioned IoT repeater split backup system includes:

The first backup module 101 is configured to acquire a backup repeater of the first repeater, and back up the cached data of the first repeater to the backup repeater.

The priority obtaining module 102 is configured to obtain a priority of the backup repeater according to the performance parameter of the backup repeater when detecting that the first repeater fails.

The backup repeater determining module 103 is configured to sort the priorities of the backup repeaters, and when the priority of the third repeater is lower than the priority of the second repeater, the third repeater is used as the first Backup repeater for two repeaters.

The terminal dividing module 104 is configured to divide the Internet of Things terminal connected to the first repeater into a first terminal set and a second terminal set.

The terminal switching module 105 is configured to switch the Internet of Things terminal in the first terminal set to the second repeater, and switch the Internet of Things terminal in the second terminal set to the third repeater.

The second backup module 106 is configured to send the cached data of the second repeater to the third repeater.

In one embodiment, the system further includes:

The priority obtaining module 107 is configured to: when the capacity of the cached data of the first repeater reaches a preset capacity threshold or when the time recorded by the timer reaches a preset backup interval, the backup relay according to the first repeater The performance parameters of the device calculate the priority of the backup repeater;

The first backup module 101 is specifically configured to back up the cached data of the first repeater according to the priority of the backup repeater.

In one embodiment, the system further includes:

The first obtaining module 108 is configured to acquire a data type of the Internet of Things terminal connected to the first repeater;

The terminal dividing module 104 is specifically configured to determine, according to the data type, the first terminal set and the Internet of Things terminal included in the second terminal set.

In one embodiment, the system further includes:

The second obtaining module 109 is configured to acquire a device identifier of the Internet of Things terminal connected to the first repeater;

The generating module 110 is configured to generate a device authentication code according to the device identifier.

The sending module 111 is configured to send the device authentication code generated by the Internet of Things terminal in the first terminal set to the second relay, and send the device authentication code generated by the Internet of Things terminal in the second terminal set to the third relay. Device

The determining module 112 is configured to: when the second repeater and the third repeater receive the connection request of the Internet of Things terminal, determine whether the device identifier of the IoT terminal that initiates the connection request matches the device authentication code;

The terminal switching module 105 is specifically configured to connect to the Internet of Things terminal if the module is successfully matched.

In one embodiment, the terminal division module 104 is specifically configured to allocate the data type of the Internet of Things terminal connected by the first relay to the uplink terminal and the Internet of Things terminal corresponding to the downlink data to the first terminal set, and set the data type to The IoT terminal corresponding to the uplink data or the downlink data is allocated to the second terminal set; the system further includes:

The data report generating module 113 is configured to generate a data report according to the device authentication code and the data type of the Internet of Things terminal.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of another terminal according to an embodiment of the present invention. As shown in FIG. 5, the terminal in this embodiment may include: one or more processors 801; one or more input devices 802, one or more output devices 803, and a memory 804. The above processor 801, input device 802, output device 803, and memory 804 are connected by a bus 805. The memory 802 is for storing instructions, and the processor 801 is for executing instructions stored by the memory 802. The processor 801 is configured to: acquire a backup repeater of the first repeater, and back up the cached data of the first repeater to the backup repeater; when detecting that the first repeater fails, according to the backup The performance parameter of the repeater obtains the priority of the backup repeater; the priority of the backup repeater is sorted, and when the priority of the third repeater is lower than the priority of the second repeater, the third The repeater acts as a backup repeater of the second repeater; switches the IoT terminal connected to the first repeater to the second repeater, and transmits the cached data of the second repeater to the third relay Device.

It should be understood that, in the embodiment of the present invention, the processor 801 may be a central processing unit (CPU), and the processor may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The input device 802 may include a touchpad, a fingerprint sensor (for collecting fingerprint information of the user and direction information of the fingerprint), a microphone, and the like, and the output device 803 may include a display (LCD or the like), a speaker, and the like.

The memory 804 can include read only memory and random access memory and provides instructions and data to the processor 801. A portion of the memory 804 may also include a non-volatile random access memory. For example, the memory 804 can also store information of the device type.

In a specific implementation, the processor 801, the input device 802, and the output device 803, which are described in the embodiments of the present invention, may be implemented in the first aspect provided by the embodiment of the present invention, and may also be described in the embodiment of the present invention. The implementation of the terminal is not described here.

Another terminal provided in another embodiment of the present invention includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are Configuration is performed by the processor, the program comprising for performing an embodiment of the present invention The instructions for implementing the method described in the first aspect.

In another embodiment of the present invention, a computer readable storage medium is provided, the computer readable storage medium storing a computer program, wherein the computer program causes a computer to perform the first aspect as provided by an embodiment of the present invention Some or all of the steps described.

In another embodiment of the present invention, a computer program product is provided, 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 the first aspect provided by the embodiments of the invention. The computer program product can be a software installation package.

It can be understood that after the above-mentioned IoT repeater split backup method and system are adopted, the backup repeater of the first repeater backs up the cached data on the first repeater, when the first repeater appears In the event of a failure, the priority of the backup repeater is obtained according to the performance parameters of the backup repeater. Since the priority of the second repeater is higher than that of the third repeater, the third repeater is the second repeater. Backup repeater that caches cached data on the second repeater. The IoT terminal connected to the first repeater is divided into a first terminal set and a second terminal set, and the IoT terminal in the first terminal set is switched to the second repeater, and the Internet of Things in the second terminal set is The terminal switches to the third repeater. Therefore, the data in the failed first repeater and the connected Internet of Things terminals can be migrated to other normally working repeaters, avoiding the failure of the repeater and causing the Internet of Things to improve the anti-fault capability of the Internet of Things. To ensure continuous delivery of network services and complete the smooth transfer of data.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software 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.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the terminal and the unit described above can be referred to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed terminal and method may be In other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above units 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, or an electrical, mechanical or other form of connection.

The units described above as separate components may or may not be physically separate, 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 objectives of the embodiments of the present invention.

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 above-described integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or 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 storage medium. 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 above-described methods of 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.

The method and system for backing up the Internet of Things repeater provided by the embodiment of the present invention are described in detail. The principles and embodiments of the present invention are described in the following. The description of the above embodiment is only used to help understanding. The method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and the scope of application. It is understood to be a limitation of the invention.

Claims

A method for split backup of an Internet of Things repeater, characterized in that the method is based on a repeater subsystem, the repeater subsystem comprising at least a first repeater, a second repeater and a a third repeater, the backup repeater of the first repeater includes at least the second repeater and the third repeater, and the method includes:

Obtaining a backup repeater of the first repeater, and backing up the cached data of the first repeater to the backup repeater;

When detecting that the first repeater is faulty, acquiring a priority of the backup repeater according to performance parameters of the backup repeater;

Sorting priorities of the backup repeaters, and when the priority of the third repeater is lower than the priority of the second repeater, the third repeater is used as the first Backup repeater for two repeaters;

The Internet of Things terminal connected to the first repeater is divided into a first terminal set and a second terminal set;

Switching the Internet of Things terminal in the first terminal set to the second repeater, and switching the Internet of Things terminal in the second terminal set to the third repeater;

The cached data of the second repeater is sent to the third repeater.
The method according to claim 1, wherein before the detecting that the first repeater fails, the method further comprises:

When the size of the buffered data of the first repeater reaches a preset capacity threshold or when the time recorded by the timer reaches a preset backup interval, according to performance parameters of the backup repeater of the first repeater Calculating a priority of the backup repeater;

The cached data of the first repeater is backed up according to the priority of the backup repeater.
The method according to claim 1 or 2, wherein the dividing the Internet of Things terminal connected to the first repeater into a first terminal set and a second terminal set comprises:

Obtaining a data type of the Internet of Things terminal connected to the first repeater;

Determining, according to the data type, the first terminal set and the Internet of Things terminal included in the second terminal set.
The method according to claim 3, wherein the switching of the Internet of Things terminal in the first terminal set to the second repeater, switching the Internet of Things terminal in the second terminal set To the third repeater, comprising:

Turning on radio frequency functions of the second repeater and the third repeater;

Obtaining the device identifier of the Internet of Things terminal connected to the first repeater;

Generating a device authentication code according to the device identifier;

Transmitting, to the second repeater, a device authentication code generated by the Internet of Things terminal in the first terminal set, and transmitting a device authentication code generated by the Internet of Things terminal in the second terminal set to the third Repeater

The second repeater and the third repeater determine, when receiving the connection request of the Internet of Things terminal, whether the device identifier of the Internet of Things terminal that initiates the connection request matches the device authentication code;

If the match is successful, connect to the IoT terminal.
The method according to claim 4, wherein the determining the first terminal set and the Internet of Things terminal included in the second terminal set according to the data type comprises:

Assigning, by the first relay device, the data type of the Internet of Things terminal connected to the first relay device to the first terminal set corresponding to the uplink data and the downlink data, and using the data type as the uplink data or the downlink data corresponding to the data type a networked terminal is allocated to the second terminal set;

After the sending the cached data of the second repeater to the third repeater, the method further includes:

Generating a data report according to the device authentication code of the Internet of Things terminal and the data type.
A system for split backup of an Internet of Things repeater, characterized in that the system is based on a repeater subsystem, the repeater subsystem comprising at least a first repeater, a second repeater and a a third repeater, the backup repeater of the first repeater includes at least the second repeater and the third repeater, The system includes:

a first backup module, configured to acquire a backup repeater of the first repeater, and back up the cached data of the first repeater to the backup repeater;

a priority obtaining module, configured to acquire a priority of the backup repeater according to a performance parameter of the backup repeater when detecting that the first repeater fails;

a repeater setting module, configured to sort priorities of the backup repeaters, when the priority of the third repeater is lower than a priority of the second repeater, a triple repeater as a backup repeater of the second repeater;

a terminal dividing module, configured to divide the Internet of Things terminal connected to the first repeater into a first terminal set and a second terminal set;

a terminal switching module, configured to switch the Internet of Things terminal in the first terminal set to the second repeater, and switch the Internet of Things terminal in the second terminal set to the third repeater;

And a second backup module, configured to send the cached data of the second repeater to the third repeater.
The system of claim 6 wherein the system further comprises:

a priority acquiring module, configured to: when the size of the buffered data of the first repeater reaches a preset capacity threshold or when the time recorded by the timer reaches a preset backup interval, according to the first repeater The performance parameters of the backup repeater calculate the priority of the backup repeater;

The first backup module is specifically configured to back up cached data of the first repeater according to a priority of the backup repeater.
The system of claim 6 or claim 7, wherein the system further comprises:

a first acquiring module, configured to acquire a data type of the Internet of Things terminal connected to the first repeater;

The terminal dividing module is specifically configured to determine, according to the data type, the first terminal set and the Internet of Things terminal included in the second terminal set.
A computer readable storage medium for storing a computer program, wherein the computer program causes a computer to perform the method of any of claims 1-5.
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 any of claims 1-5 The method described.