WO2019037734A1

WO2019037734A1 - Internet of things connecting method, terminal and internet of things platform

Info

Publication number: WO2019037734A1
Application number: PCT/CN2018/101663
Authority: WO
Inventors: 张景瑞
Original assignee: 西安中兴新软件有限责任公司
Priority date: 2017-08-23
Filing date: 2018-08-22
Publication date: 2019-02-28
Also published as: CN109429204A

Abstract

The present disclosure provides an Internet of things connecting method, a terminal and an Internet of things platform. The Internet of things connecting method comprises the following steps: after a terminal is disconnected from an Internet of things platform, searching for a target terminal accessible to the Internet of things platform; and if the target terminal is found, establishing a connection with the target terminal, and connecting to the Internet of things platform by means of the network of the target terminal.

Description

Method, terminal and internet of things platform for connecting internet of things

Technical field

Embodiments of the present disclosure relate to the field of Internet of Things, and in particular, to a method, a terminal, and an Internet of Things platform for connecting an Internet of Things.

Background technique

Internet of Things (IoT) is an important part of the new generation of information technology, and an important stage of development in the "informatization" era. The Internet of Things is the Internet of things that can extend and extend its client to any item and item for information exchange and communication.

Each terminal node in the IoT platform needs to be connected to the IoT platform in real time. Once the terminal is disconnected from the IoT platform due to poor network status and low battery power, the user cannot view the information of the disconnected terminal or perform the same. control. If the information of the terminal is important to the user, it will affect the user experience.

At the same time, if the IoT terminal loses data or restores the factory settings, although data backup and recovery can be performed from the IoT platform, this may result in traffic consumption and power consumption; and if the data recovery is slow or unrecoverable, it will also affect the user experience.

Summary of the invention

A method for connecting an Internet of Things, comprising the steps of: after a terminal disconnects from an Internet of Things platform, searching for a target terminal that can access the Internet of Things platform; and if the target terminal is found, establishing with the target terminal Connecting, connecting to the Internet of Things platform through a network of the target terminal.

A terminal includes: a lookup module configured to: after the terminal is disconnected from the Internet of Things platform, find a target terminal that can access the IoT platform; and a connection module configured to find the target The terminal establishes a connection with the target terminal, and connects to the Internet of Things platform through a network of the target terminal.

A terminal includes: a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes the program to implement the following steps: after the terminal is disconnected from the Internet of Things platform And searching for a target terminal that can access the IoT platform; and if the target terminal is found, establishing a connection with the target terminal, and connecting to the Internet of Things platform through a network of the target terminal.

A method for connecting an Internet of Things, comprising the steps of: an IoT platform polling a terminal status, viewing a terminal that has not transmitted the last message information at a specified time; finding a target terminal connectable with the terminal; and transmitting the location to the target terminal The terminal information and the recovery connection command information.

An Internet of Things platform, comprising: a polling module configured to poll a terminal status, view a terminal that has not sent the last message information at a specified time; a search module configured to find a target terminal connectable with the terminal; and send And a module configured to send information of the terminal and resume connection command information to the target terminal.

An Internet of Things platform includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the following steps: the Internet of Things platform polls the terminal status Viewing a terminal that has not transmitted the last message information at a specified time; finding a target terminal connectable with the terminal; and transmitting information of the terminal and restoring connection command information to the target terminal.

A method for connecting an Internet of Things, comprising the steps of: after receiving the specified information, attempting to establish a connection with the designated terminal; and after establishing a connection with the designated terminal, accepting the terminal to establish with the Internet of Things platform through the network thereof Connecting, or forwarding information exchanged between the terminal and the Internet of Things platform.

A terminal, comprising: a connection module configured to, after receiving the specified information, attempt to establish a connection with the designated terminal; and a processing module configured to: after establishing a connection with the designated terminal, accepting the terminal through the network thereof The Internet of Things platform establishes a connection or forwards information exchanged between the terminal and the Internet of Things platform.

A terminal comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes the program to implement the following steps: after receiving the specified information, attempting and specifying The terminal establishes a connection; and after establishing a connection with the designated terminal, accepting the terminal to establish a connection with the Internet of Things platform through its own network, or forwarding information exchanged between the terminal and the Internet of Things platform.

DRAWINGS

1 is a flow chart of a method of connecting an Internet of Things, in accordance with an embodiment of the present disclosure.

2 is a flow chart of another method of connecting an Internet of Things, in accordance with an embodiment of the present disclosure.

3 is a flow chart of yet another method of connecting an Internet of Things, in accordance with an embodiment of the present disclosure.

4 is a schematic diagram of an IoT platform connected to an access terminal in accordance with an embodiment of the present disclosure.

FIG. 5 is a flowchart of a terminal transmitting a legacy message according to an embodiment of the present disclosure.

6 is a flow diagram of establishing a connection between a terminal and a connectable terminal in accordance with an embodiment of the present disclosure.

FIG. 7 is a flowchart of a process after a terminal is disconnected from an IoT platform according to an embodiment of the present disclosure.

FIG. 8 is a flowchart of a process in which a normal in-network terminal D2 adds an abnormal terminal D1 to its own network according to an embodiment of the present disclosure.

9 is a flow chart of a terminal performing data backup according to an embodiment of the present disclosure.

FIG. 10 is a block diagram of a terminal (anomaly) according to an embodiment of the present disclosure.

11 is a block diagram of an Internet of Things platform in accordance with an embodiment of the present disclosure.

Figure 12 is a block diagram of a terminal (on the network) of an embodiment of the present disclosure.

Detailed ways

The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments in the present disclosure and the features in the embodiments may be arbitrarily combined with each other without conflict.

1 is a flow chart of a method of connecting an Internet of Things, in accordance with an embodiment of the present disclosure. As shown in Figure 1, the method includes the following steps 11-12. The method steps can be performed at a networked (abnormal) terminal.

At step 11, after the terminal is disconnected from the Internet of Things platform, the target terminal that can access the IoT platform is searched for.

At step 12, if the target terminal is found, a connection is established with the target terminal, and the network of the target terminal is connected to the Internet of Things platform.

According to the method for connecting the Internet of Things, after the network of the IoT platform is disconnected due to network abnormality, exhausted traffic, etc., if there is a normal IoT terminal around the network, the short-range wireless communication function module (for example, Zigbee) can be utilized. , low-power communication modules such as Bluetooth) to restore their connection to the IoT platform to enhance the user experience.

2 is a flow chart of another method of connecting an Internet of Things, in accordance with an embodiment of the present disclosure. As shown in FIG. 2, the method includes the following steps 21-23. The method steps can be performed at the IoT platform.

At step 21, the Internet of Things platform polls the terminal status to view terminals that have not sent the last message information for a specified time.

At step 22, a target terminal connectable to the terminal is looked up.

At step 23, the terminal information and the resume connection command information are transmitted to the target terminal.

3 is a flow chart of yet another method of connecting an Internet of Things, in accordance with an embodiment of the present disclosure. As shown in FIG. 3, the method includes the following steps 31-32. The method steps can be performed at the terminal of the network.

At step 31, after receiving the specified information, an attempt is made to establish a connection with the designated terminal.

At step 32, after establishing a connection with the designated terminal, accepting the designated terminal to establish a connection with the Internet of Things platform through its own network, or forwarding information exchanged between the designated terminal and the Internet of Things platform.

In an embodiment, the step of receiving the specified information comprises the steps of: receiving heartbeat information sent by the designated terminal, including a disconnected state from the Internet of Things platform, or receiving a resume connection command sent by the Internet of Things platform. information.

The method of connecting the Internet of Things in the above embodiments will be described in detail below by way of specific embodiments.

4 is a schematic diagram of an IoT platform connected to an access terminal according to an embodiment of the present disclosure. As shown in FIG. 4, the IoT platform can access multiple terminal devices P1, P2, P3, .

FIG. 5 is a flowchart of a terminal transmitting a legacy message according to an embodiment of the present disclosure. As shown in FIG. 5, the process includes the following steps: 201-204.

At step 201, terminal D1 accesses the IoT platform.

At step 202, the IoT platform determines whether the terminal D1 is the first access, and if so, proceeds to step 203; if not, proceeds to step 204.

After the IoT terminal (for example, D1) accesses the IoT platform for the first time, the IoT platform records the terminal ID of D1.

The method for determining whether the terminal D1 is the first time to access the IoT platform is: if the terminal ID ID of the accessed terminal ID record recorded by the IoT platform does not include the terminal ID, it is determined to be the first access, otherwise it is not the first access.

At step 203, if it is the first time access, the IoT platform records and stores the terminal ID in the accessed terminal ID list, records its IP address, establishes a message channel with it, and proceeds to step 204.

At step 204, the terminal D1 starts to continuously send the last words information to the IoT platform at a fixed time interval, and the last words information includes: a terminal name, a terminal IP, a terminal location, a current time, a cell ID, and the like.

Each terminal in the IoT platform sends the legacy information to the IoT platform at regular intervals. The IoT platform saves the last message information to the database based on the terminal ID. Considering the power consumption problem of the terminal, T can be greater than 30 minutes.

FIG. 6 is a flowchart of establishing a connection between a terminal and a connectable terminal according to an embodiment of the present disclosure. As shown in FIG. 6, the flow includes the following steps: 301-304.

At step 301, terminal D1 establishes a connection with the IoT platform.

At step 302, the IoT platform searches for other terminals (which may be one terminal or multiple terminals) that are closest to the location of the terminal D1, and transmits information such as terminal name, terminal IP, terminal location, and the like to the terminal D1.

The IoT platform searches for the access terminal closest to the D1 (for example, the terminal D2) in all the terminals accessing the IoT platform according to the terminal location or the cell ID in the legacy information, and includes the terminal ID, the terminal name, and the terminal of the D2. The terminal information such as the location is transmitted to the terminal D1, and the terminal D1 stores the terminal information of the terminal D2.

At step 303, terminal D1 and terminal D2 attempt to establish a connection through their own short-range wireless communication functions, such as Zigbee, Bluetooth, or WiFi.

At step 304, after the connection is successful, the terminal D1 transmits heartbeat information to the terminal D2 at a certain time interval.

Terminal D1 and terminal D2 open their ZigBee (Zibebe Protocol), Bluetooth or WiFi (Wireless Fidelity) functions, terminal D2 sets itself to the discovered mode, and terminal D1 attempts to establish a data connection with terminal D2. If a data connection can be established, the two terminals start to send heartbeat information at fixed time intervals, and the heartbeat information includes information such as the connection state with the IoT platform.

The terminal D1 and the terminal D2 can also send their own configuration files or other information to the other party as a backup, and upload the backup status information to the IoT platform. If a terminal in the terminal D1 and the terminal D2 needs to be restored to the factory settings due to a failure, the IoT platform may be queried to the terminal that has established a heartbeat connection, and the backup data information is restored therefrom.

If a terminal disconnects from the IoT due to poor network status, exhausted traffic, etc., the terminal can open its own low-power device such as Zigbee or Bluetooth after detecting disconnection from the IoT, and set itself up. In order to be discoverable, in this case, the terminal with which the heartbeat is established can also turn on its own Zigbee or Bluetooth function to search for the disconnected terminal and attempt to establish a connection with it.

FIG. 7 is a flowchart of a process after a terminal is disconnected from an IoT platform according to an embodiment of the present disclosure. As shown in FIG. 7, the process includes the following steps: 401-486.

At step 401, terminal D1 is disconnected from the IoT platform.

At step 402, the terminal D1 determines whether there is a terminal D2 that has established a heartbeat connection with the terminal D1, and if yes, proceeds to step 403; if not, proceeds to step 406.

At step 403, the terminal D1 sets the IoT platform connection state in the heartbeat information to off when the heartbeat information is transmitted next time.

At step 404, after receiving the heartbeat information disconnected from the IoT platform, the terminal D2 establishes a connection with the terminal D1 via Bluetooth, WiFi, or the like.

At step 405, the disconnected terminal D1 accesses the IoT platform through the network of the terminal D2.

At step 406, terminal D1 looks up the connectable in-network terminal.

Terminal D1 calculates the time difference between the time of disconnection and the last time the last message was sent to the IoT platform, and records it as t. If t>T, that is, the time difference is greater than the last sentence transmission interval T, the terminal D1 opens the Zigbee, Bluetooth or WiFi function of the terminal D1 at a certain time interval T1, and sets it as a networkable or discoverable state, and the state is Hold for a period of time T2, where T1 is greater than T2.

If the terminal D1 is still not connected to the IoT platform after the T2 time, the Zigbee, Bluetooth or WiFi function is turned off, and the Zigbee, Bluetooth or WiFi function is turned on after waiting for the time T1 and the self is set to be discoverable.

FIG. 8 is a flowchart of a process in which a normal in-network terminal D2 adds an abnormal terminal D1 to its own network according to an embodiment of the present disclosure. As shown in FIG. 8, the flow includes the following steps: 501-507.

At step 501, the IoT platform polls the status of each terminal.

At step 502, the IoT platform checks to see if there is a terminal timeout that has not sent the last message.

At step 503, a terminal (abnormal terminal) that has not sent the last message information, such as terminal D1, is found.

The IoT platform determines whether a terminal is disconnected according to the time interval T reported by the terminal. For example, after the last report of the last message from a terminal has passed the interval T time, the IoT platform does not receive the new testimony sent by the terminal, and the IoT platform can determine that the terminal is abnormally disconnected and set its state to an abnormal state. . The abnormally disconnected terminal is recorded as D1.

At step 504, the in-network terminal D2 that appeared before D1 and is closest to the distance D1 is found.

At step 505, the IoT transmits information such as the ID, name, IP, location, and the like of the terminal D1 to the terminal D2, and transmits a resume connection command for the terminal D1.

The IoT platform queries the location information in all the access terminal information that it saves, and searches for a mobile access terminal (referred to as D2) that is located in the vicinity of the terminal D1 and is closest to the terminal D1. The IoT platform will be the terminal D1. The terminal information including the terminal ID, the terminal name, the terminal location, and the like is transmitted to the terminal D2, and the restoration connection command for the terminal D1 is transmitted to the terminal D2, and the terminal D2 searches for the terminal D1 and attempts to restore the networking of the terminal D1.

At step 506, terminal D2 continuously checks its own location information to determine if it has reached the vicinity of terminal D1, i.e., determines if D2 is already within the D1 connectable range.

At step 507, the terminal D2 determines that the Zigbee or Bluetooth function of the terminal D2 is turned on after determining that the terminal D1 has arrived in the vicinity of the terminal D1, and searches for the surrounding device according to the name of the terminal D1. At this time, if the Zigbee or Bluetooth of the terminal D1 is in a networkable or discoverable state, the terminal D2 can find the terminal D1, and add the terminal D1 to the network of the terminal D2, and establish a connection with the IoT platform through the terminal D2.

If a terminal is restored to factory settings due to a failure, a backup query request can be sent to the IoT platform for backup.

FIG. 9 is a flowchart of performing data backup by a terminal according to an embodiment of the present disclosure. As shown in FIG. 9, the flow includes the following steps: 601-605.

At step 601, the terminal loses data due to a failure, or needs to recover data after restoring the factory settings.

At step 602, the terminal sends a backup query request to the IoT platform to query whether a neighboring device has its own backup file.

At step 603, the terminal receives a backup response message returned by the IoT platform. According to the backup response message, if a neighboring device saves its own backup file, go to step 604.

At step 604, the terminal turns on Bluetooth, Zigbee, etc., and sets itself to a discoverable state, and sends a backup request to the terminal that holds its own backup file.

At step 605, the terminal that saves its own backup file starts its own Zigbee or Bluetooth, searches for the terminal and attempts to establish a connection with it, and after the connection is established successfully, the backup file can be sent to the terminal.

Through the above method steps, the terminal can recover its own data information through data backup of other terminals.

The above method is not limited to establishing heartbeat and backup data only with one of the adjacent terminals, and can also perform heartbeat connection and data backup simultaneously with multiple surrounding terminals to increase the probability of recovery.

Through the above method steps, after the IoT terminal is disconnected from the IoT platform due to network abnormality and traffic exhaustion, if there is a normal IoT terminal around the network, the short-range wireless communication function can be used to restore the connection.

The IoT terminal can back up data with the adjacent terminal. When an IoT terminal is restored to the factory settings due to a failure, the IoT platform can be queried to the terminal with which the heartbeat has been established, and the backup data information is restored therefrom.

In the smart home scene, the door magnetic, temperature and humidity sensors can be connected to the IoT platform via WiFi. If the WiFi hotspot is broken or the network is abnormal, the magnetic door, temperature and humidity sensor can continue to access the IoT platform through the user's mobile phone. in.

Embodiments of the present disclosure relate to an Internet of Things platform, an abnormal terminal, and an in-network terminal. The following describes the Internet of Things platform, an abnormal terminal, and an in-network terminal.

FIG. 10 is a block diagram of a terminal (anomaly) according to an embodiment of the present disclosure. As shown in FIG. 10, the terminal includes: a lookup module and a connection module.

The searching module is configured to find a target terminal that can access the IoT platform after the terminal is disconnected from the Internet of Things platform.

The connection module is configured to establish a connection with the target terminal if the target terminal is found, and connect to the Internet of Things platform through a network of the target terminal.

A terminal according to an embodiment of the present disclosure may use a short-range wireless communication function (for example, a low-power communication module such as Zigbee or Bluetooth) if the terminal has a normal intra-network IoT terminal due to network abnormality, traffic exhaustion, or the like. ) to restore its connection to the IoT platform.

In an embodiment, the lookup module is configured to find a target terminal accessible to the Internet of Things platform by querying whether a connection has been established with the terminal before disconnecting from the IoT platform The terminal, if yes, determining that the terminal that has established a connection with the terminal is a target terminal that can access the Internet of Things platform, and if not, turns on the short-range wireless communication function every first specified time And setting the terminal to a discoverable state, and maintaining the discoverable state for a second specified time, where the first specified time is greater than the second specified time.

In an embodiment, the terminal further includes: a sending module, configured to periodically send the last word information to the Internet of Things platform before disconnecting from the Internet of Things platform, where the last word information includes at least one of the following items Item: terminal name, terminal IP, terminal location, current time, and cell identity.

In an embodiment, the terminal further includes: a receiving module configured to receive information of one or more connectable terminals sent by the Internet of Things platform; and the sending module is further configured to be connected to the connectable terminal After the connection is established, heartbeat information is periodically sent to the connectable terminal, and the heartbeat information includes connection state information with the Internet of Things platform.

In an embodiment, the terminal further includes: a backup module, configured to send a specified file to the connectable terminal for backup after establishing a connection with the connectable terminal, or receive the sent by the connectable terminal The file is backed up and the backup status is uploaded to the IoT platform.

In an embodiment, the backup module is further configured to send a query backup request to the Internet of Things platform, and after receiving the backup backup response returned by the Internet of Things platform, establish a connection with the connectable terminal. The connectable terminal acquires a backup file.

An embodiment of the present disclosure further provides a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the following steps: After the platform is disconnected, searching for a target terminal that can access the IoT platform; and if the target terminal is found, establishing a connection with the target terminal, performing a network with the target terminal and the Internet of Things platform connection.

11 is a block diagram of an Internet of Things platform according to an embodiment of the present disclosure. As shown in FIG. 11, the Internet of Things platform includes a polling module, a lookup module, and a sending module.

The polling module is configured to poll the terminal status to view terminals that have not sent the last message information for a specified time.

The lookup module is configured to look up a target terminal connectable to the terminal.

The sending module is configured to send information of the terminal and resume connection command information to the target terminal.

In an embodiment, the Internet of Things platform further includes: a receiving module, configured to periodically receive the last message sent by the terminal before viewing the terminal that has not sent the last message information at a specified time, where the last message information includes the following At least one of the items: terminal name, terminal IP, terminal location, current time, and cell identity.

In an embodiment, the Internet of Things platform further includes: a connection module configured to establish a connection with the terminal; and the lookup module is further configured to look up one or more terminals to be connected that are connectable to the terminal Sending information of the terminal to be connected to the terminal.

In an embodiment, the receiving module is further configured to receive and record backup status information of the terminal.

An embodiment of the present disclosure further provides an Internet of Things platform, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the following steps: The networking platform polls the terminal status, looks at the terminal that has not sent the last message information at the specified time; searches for the target terminal that can be connected to the terminal; and transmits the information of the terminal and the recovery connection command information to the target terminal.

FIG. 12 is a block diagram of a terminal (on the network) according to an embodiment of the present disclosure. As shown in FIG. 12, the terminal includes: a connection module and a processing module.

The connection module is configured to attempt to establish a connection with the designated terminal after receiving the specified information.

The processing module is configured to, after establishing a connection with the designated terminal, accept the terminal to establish a connection with the Internet of Things platform through its own network, or forward information exchanged between the terminal and the Internet of Things platform.

In an embodiment, the connection module is configured to receive the specified information by receiving the heartbeat information sent by the designated terminal, including the disconnected state from the Internet of Things platform, or receiving the sent by the Internet of Things platform. Restore connection command information.

In an embodiment, the connection module is configured to attempt to establish a connection with the designated terminal by: if it is determined that the specified terminal is within the specified range, the proximity wireless communication function is turned on, and the designated terminal is searched.

In an embodiment, the terminal further includes: a backup module configured to perform backup after receiving the specified file of the designated terminal; or after receiving the backup request of the designated terminal, corresponding to the designated terminal The file is sent to the designated terminal.

An embodiment of the present disclosure further provides a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the following steps: receiving the designation After the information, attempt to establish a connection with the designated terminal; and after establishing a connection with the designated terminal, accepting that the terminal establishes a connection with the Internet of Things platform through its own network, or forwarding between the terminal and the Internet of Things platform Interactive information.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium such as a read only memory, a magnetic disk or an optical disk. All or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware or in the form of a software function module. The present disclosure is not limited to any specific form of combination of hardware and software.

The above is merely an exemplary embodiment of the present disclosure. A person skilled in the art can make various changes and modifications in accordance with the present disclosure without departing from the spirit and scope of the disclosure, but the corresponding changes and modifications are intended to fall within the scope of the appended claims. .

Claims

A method of connecting an Internet of Things, comprising the steps of:

After the terminal is disconnected from the Internet of Things platform, searching for a target terminal that can access the IoT platform;

And if the target terminal is found, establishing a connection with the target terminal, and connecting to the Internet of Things platform through a network of the target terminal.
The method of claim 1 wherein said step of finding a target terminal accessible to said IoT platform comprises the steps of:

Querying whether there is a terminal that has established a connection with the terminal before disconnecting from the Internet of Things platform, and if yes, determining that the terminal that has established a connection with the terminal is accessible to the Internet of Things The target terminal of the platform, if not, opens the short-range wireless communication function every first designated time, sets the terminal to be discoverable, and maintains the discoverable state for a second specified time.
The method of claim 2, wherein

The first specified time is greater than the second specified time.
The method of claim 1, wherein before the step of disconnecting the terminal from the Internet of Things platform, the method further comprises the steps of:

The terminal periodically sends the last words information to the Internet of Things platform, and the last word information includes at least one of the following: a terminal name, a terminal IP, a terminal location, a current time, and a cell identifier.
The method of claim 1 wherein said step of disconnecting from the Internet of Things platform further comprises the steps of:

Receiving information of one or more connectable terminals sent by the Internet of Things platform;

After establishing a connection with the connectable terminal, the heartbeat information is periodically sent to the connectable terminal, and the heartbeat information includes connection state information with the Internet of Things platform.
The method of claim 5, wherein the step of establishing a connection with the connectable terminal further comprises the steps of:

Sending the specified file to the connectable terminal for backup, or receiving the file sent by the connectable terminal for backup, and uploading the backup status to the Internet of Things platform.
The method of claim 6, wherein after the step of uploading the backup status to the Internet of Things platform, the method further comprises the steps of:

Sending a query backup request to the IoT platform;

After receiving the backed up backup response returned by the Internet of Things platform, establishing a connection with the connectable terminal, and obtaining a backup file from the connectable terminal.
The method of any of claims 1-7, wherein the step of establishing a connection with the target terminal comprises the steps of:

Establishing a connection with the target terminal through a short-range wireless communication function.
A terminal comprising:

a search module, configured to: after the terminal is disconnected from the Internet of Things platform, searching for a target terminal that can access the IoT platform;

And a connection module, configured to establish a connection with the target terminal if the target terminal is found, and connect to the Internet of Things platform through a network of the target terminal.
The terminal of claim 9, wherein

The searching module is configured to: search for a target terminal that can access the Internet of Things platform by querying whether there is a terminal that has established a connection with the terminal before disconnecting from the Internet of Things platform, where If yes, the terminal that has established a connection with the terminal is a target terminal that can access the Internet of Things platform. If not, the short-range wireless communication function is turned on every first specified time, and the terminal is set to be A state can be discovered that maintains the discoverable state for a second specified time, the first specified time being greater than the second specified time.
The terminal of claim 9, wherein the terminal further comprises:

a sending module, configured to periodically send the legacy information to the Internet of Things platform before disconnecting from the Internet of Things platform, the last message information including at least one of the following: a terminal name, a terminal IP, a terminal location, and a current Time and cell identification.
The terminal of claim 9, wherein the terminal further comprises:

a receiving module, configured to receive information of one or more connectable terminals sent by the Internet of Things platform; and

The sending module is further configured to periodically send heartbeat information to the connectable terminal after establishing a connection with the connectable terminal, where the heartbeat information includes connection state information with the Internet of Things platform.
The terminal of claim 12, wherein the terminal further comprises:

a backup module, configured to send a specified file to the connectable terminal for backup after establishing a connection with the connectable terminal, or receive a file sent by the connectable terminal for backup, and upload a backup status to the object Networked platform.
The terminal of claim 13 wherein

The backup module is further configured to send a query backup request to the Internet of Things platform, and after receiving the backup backup response returned by the Internet of Things platform, establish a connection with the connectable terminal, and obtain the connection with the connectable terminal. backup file.
A terminal comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor performs the following steps when executing the program:

After the terminal is disconnected from the Internet of Things platform, searching for a target terminal that can access the IoT platform;

And if the target terminal is found, establishing a connection with the target terminal, and connecting to the Internet of Things platform through a network of the target terminal.
A method of connecting an Internet of Things, comprising the steps of:

The Internet of Things platform polls the terminal status and views terminals that have not sent the last message information at a specified time;

Finding a target terminal connectable to the terminal;

Sending information of the terminal and restoring connection command information to the target terminal.
The method of claim 16, wherein the IoT platform includes the following steps before the step of viewing the terminal that has not sent the last message information at a specified time:

The Internet of Things platform periodically receives the terminal to send the last message information, and the last word information includes at least one of the following: a terminal name, a terminal IP, a terminal location, a current time, and a cell identifier.
The method of claim 17, wherein the IoT platform periodically receives the step of the terminal transmitting the last message, and further comprises the steps of:

The Internet of Things platform establishes a connection with the terminal;

Searching for one or more terminals to be connected that are connectable to the terminal, and transmitting information of the terminal to be connected to the terminal.
The method of claim 18, wherein after the step of establishing the connection between the Internet of Things platform and the terminal, the method further comprises the steps of:

The Internet of Things platform receives and records backup status information of the terminal.
An Internet of Things platform, including:

a polling module, configured to poll the terminal status, and view a terminal that has not sent the last message information at a specified time;

a lookup module configured to find a target terminal connectable to the terminal;

And a sending module, configured to send information of the terminal and resume connection command information to the target terminal.
The Internet of Things platform of claim 20, wherein the Internet of Things platform further comprises:

a receiving module, configured to periodically receive the last message sent by the terminal before viewing the terminal that has not sent the last message information at a specified time, where the last message includes at least one of the following: a terminal name, a terminal IP, and a terminal Location, current time, and cell ID.
The Internet of Things platform of claim 21, wherein the Internet of Things platform further comprises:

a connection module configured to establish a connection with the terminal; and

The searching module is further configured to search for one or more terminals to be connected that are connectable to the terminal, and send information about the terminal to be connected to the terminal.
The Internet of Things platform according to claim 21, wherein

The receiving module is further configured to receive and record backup status information of the terminal.
An Internet of Things platform includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor performs the following steps when executing the program:

The Internet of Things platform polls the terminal status and views terminals that have not sent the last message information at a specified time;

Finding a target terminal connectable to the terminal;

Sending information of the terminal and restoring connection command information to the target terminal.
A method of connecting an Internet of Things, comprising the steps of:

After receiving the specified information, try to establish a connection with the specified terminal;

After establishing a connection with the designated terminal, the terminal is accepted to establish a connection with the Internet of Things platform through its own network, or forward information exchanged between the terminal and the Internet of Things platform.
The method of claim 25 wherein said step of receiving the specified information comprises the steps of:

Receiving heartbeat information sent by the designated terminal, including a disconnected state from the Internet of Things platform, or receiving resume connection command information sent by the Internet of Things platform.
The method of claim 25 wherein said step of attempting to establish a connection with a designated terminal comprises the steps of:

If it is determined that the specified terminal is within the specified range, the short-range wireless communication function is turned on to search for the designated terminal.
The method of claim 25, wherein the step of establishing a connection with the designated terminal further comprises the steps of:

Backing up after receiving the specified file of the specified terminal; or

After receiving the backup request of the specified terminal, the file corresponding to the specified terminal is sent to the designated terminal.
A terminal comprising:

a connection module configured to, after receiving the specified information, attempt to establish a connection with the designated terminal;

And a processing module, configured to: after establishing a connection with the designated terminal, accepting, by the terminal, establishing a connection with the Internet of Things platform through a network thereof, or forwarding information exchanged between the terminal and the Internet of Things platform.
The terminal of claim 29, wherein

The connection module is configured to receive the specified information by receiving the heartbeat information sent by the designated terminal, including the disconnected state from the Internet of Things platform, or receiving the resume connection command information sent by the Internet of Things platform.
The terminal of claim 29, wherein

The connection module is configured to attempt to establish a connection with the designated terminal by determining to open the short-range wireless communication function to search for the designated terminal if it is determined that the specified terminal is within the specified range.
The terminal of claim 29, wherein the terminal further comprises:

And the backup module is configured to perform the backup after receiving the specified file of the specified terminal; or after receiving the backup request of the designated terminal, send the file corresponding to the designated terminal to the designated terminal.
A terminal comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor performs the following steps when executing the program:

After receiving the specified information, try to establish a connection with the specified terminal;

After establishing a connection with the designated terminal, the terminal is accepted to establish a connection with the Internet of Things platform through its own network, or forward information exchanged between the terminal and the Internet of Things platform.