TW202147099A - A device for internet of things, a server, and a software updating method - Google Patents

Abstract

The present disclosure provides a software updating method, a server, and a device for internet of things. The software updating method encrypts software updating information with a public key of an adjacent device, and sends the software updating information to the adjacent device, and when a decrypted control information includes address information of storing a software in a server and the software updating information, the software in the device for internet of things corresponding to the software updating information is downloaded from the server according to the address information and the software updating information, thereby improving software updating convenience of the device for internet of things, and reducing a load of the server, and improving security of software updating.

Description

IoT device, server and software update method

The invention relates to the field of communication technologies, and in particular, to an Internet of Things device, a server and a software update method.

In the prior art, centralized software updates for IoT devices require a large number of servers to provide update services, but building such a large number of servers increases setup costs. In addition, in order to achieve low energy consumption and low cost, IoT devices are often connected between IoT devices in the form of mesh/tree, and IoT devices are not always connected to servers, so the ability of IoT devices to connect to servers Both time and time are limited, which makes it inconvenient for IoT devices to update software from the server.

In view of the above, it is necessary to provide an IoT device, a server and a software update method, so as to improve the convenience of software update for the IoT device, reduce the load of the server, and improve the security of software update.

A first aspect of the present invention provides an Internet of Things device, comprising a processing unit configured to:

Searching for device information of neighboring devices around the IoT device by broadcasting;

Obtain the device information of the IoT device, encrypt the device information of the IoT device by a first encryption method according to the device information of the IoT device and the device information of the neighboring device, and encrypt the encrypted device information of the IoT device and the device information of said neighboring device to the server;

Decrypt the control information sent by the server, and determine whether the decrypted control information is the public key and software update information of the adjacent device, or the address information and software update information of the software stored in the server;

When the decrypted control information is the public key of the adjacent device and the software update information, encrypt the software update information with the public key of the adjacent device and send it to the adjacent device, and send the software update information from the adjacent device to the adjacent device. download the software corresponding to the software update information in the adjacent device; and

When the decrypted control information is the address information and software update information of the software stored in the server, download the software corresponding to the software update information from the server according to the address information and software update information .

A second aspect of the present invention provides a server, comprising a processing unit configured to:

Receive the device information of the IoT device and the device information of the neighboring device sent by the IoT device, and determine whether the neighboring device is a legitimate device according to the device information of the neighboring device;

When the neighboring device is a legitimate device, determine whether the neighboring device has the ability to provide a software update function according to the software version and service status of the neighboring device;

When it is determined that the adjacent device has the ability to provide a software update function, the public key of the adjacent device and the software update information are sent to the Internet of Things device by a second encryption method;

When it is determined that the adjacent device is an illegal device or when it is determined that the adjacent device does not have the ability to provide a software update function, send the address information of the software stored in the server and the software update information by a second encryption method to the IoT device.

The third party aspect of the present invention provides a software update method, which is applied in an Internet of Things device, and the method includes:

Searching for device information of neighboring devices around the IoT device by broadcasting;

Obtain the device information of the IoT device, encrypt the device information of the IoT device by a first encryption method according to the device information of the IoT device and the device information of the neighboring device, and encrypt the encrypted device information of the IoT device and the device information of said neighboring device to the server;

Decrypt the control information sent by the server, and determine whether the decrypted control information is the public key and software update information of the adjacent device, or the address information and software update information of the software stored in the server;

When the decrypted control information is the public key of the adjacent device and the software update information, encrypt the software update information with the public key of the adjacent device and send it to the adjacent device, and send the software update information from the adjacent device to the adjacent device. download the software corresponding to the software update information in the adjacent device; and

When the decrypted control information is the address information and software update information of the software stored in the server, download the software corresponding to the software update information from the server according to the address information and software update information .

A fourth aspect of the present invention provides a software update method, which is applied in a server, wherein the method includes:

Receive the device information of the IoT device and the device information of the neighboring device sent by the IoT device, and determine whether the neighboring device is a legitimate device according to the device information of the neighboring device;

When the neighboring device is a legitimate device, determine whether the neighboring device has the ability to provide a software update function according to the software version and service status of the neighboring device;

When it is determined that the adjacent device has the ability to provide a software update function, the public key of the adjacent device and the software update information are sent to the Internet of Things device by a second encryption method;

When it is determined that the adjacent device is an illegal device or when it is determined that the adjacent device does not have the ability to provide a software update function, send the address information of the software stored in the server and the software update information by a second encryption method to the IoT device.

A fifth aspect of the present invention provides a software update method, which is applied in a neighboring device, and the method includes:

Receive the software update information encrypted by the public key of the adjacent device sent by the Internet of Things device, and decrypt the software update information by the private key of the adjacent device to obtain the software update information;

Determine whether the software update information is correct;

When the software update information is correct, the software corresponding to the software update information is sent to the Internet of Things device.

Compared with the prior art, the IoT device, the server and the software update method can improve the convenience of the IoT device to update the software, reduce the load of the server, and improve the security of the software update.

In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments may be combined with each other under the condition of no conflict.

In the following description, many specific details are set forth in order to facilitate a full understanding of the present invention, and the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

Referring to FIG. 1 , it is a structural diagram of a software updating system for an Internet of Things device provided by a preferred embodiment of the present invention.

In this embodiment, the IoT device software update system 110 includes an IoT device 1 as a software update requester, a server 2 as a software update controller, and a neighboring device 3 as a software update provider. In this embodiment, the server 2 as the software update controller is used to control the IoT device 1 as the software update requester to download software from the neighboring devices 3 adjacent to the IoT device 1 to update the software.

In this embodiment, the IoT device 1 and the adjacent device 3 may be terminal devices such as personal computers, mobile phones, tablet computers, home phones, home TVs, home refrigerators, and the like. It should be noted that the adjacent device 3 refers to a device that is connected to the Internet of Things device 1 to form the same broadcast area through a physical transmission medium. In this embodiment, the server 2 may be a single server, a server cluster or a cloud server.

In this embodiment, the IoT device 1 includes a first memory 11 , at least one first processor 12 , and a first communication unit 13 that are electrically connected to each other. The adjacent device 3 includes a second memory 31 , at least one second processor 32 , and a second communication unit 33 that are electrically connected to each other. The IoT device 1 and the neighboring device 3 are connected through the first communication unit 13 and the third communication unit 33 for communication. In this embodiment, the first communication unit 13 and the third communication unit 33 may be wired communication modules, such as cables. In other embodiments, the first communication unit 13 and the third communication unit 33 may be wireless communication modules, such as WiFi communication modules, 4G\5G communication modules, and the like. In this embodiment, the server 2 includes a third memory 31 and at least one third processor 22 that are electrically connected to each other. In this embodiment, the IoT device 1 and the server 2 are communicated and connected through a network 4 . In this embodiment, the network 4 used to support the communication between the IoT device 1 and the server 2 may be a wired network or a wireless network, such as radio, wireless fidelity (WIFI), cellular, satellite, radio, etc.

Those skilled in the art should understand that the structures of the IoT device 1 , the server 2 , and the neighboring device 3 shown in FIG. 1 do not constitute a limitation of the embodiments of the present invention. More or less other hardware or software than Figure 1 may be included, or a different arrangement of components.

It should be noted that the IoT device 1, the server 2 and the neighboring device 3 are only examples, and other existing or possible future IoT devices 1, server 2 and neighboring device 3 can be adapted to the present invention. It should also be included within the scope of the present invention and incorporated herein by reference.

In some embodiments, the first memory 11 , the second memory 31 and the third memory 21 can be used to store program codes and various data of computer programs. For example, the first memory 11 can be used to store the IoT device software update system 110 installed in the IoT device 1 , and realize high-speed and automatic completion of programs or data during the operation of the IoT device 1 access. The third memory 21 can be used to store the software update control system 210 installed in the server 2 , and realize high-speed and automatic access to programs or data during the operation of the server 2 . The second memory 31 can be used to store the software update response system 310 installed in the adjacent device 3 , and realize high-speed and automatic access to programs or data during the operation of the adjacent device 3 . It should be noted that the IoT device software update system 110 , the software update control system 210 and the software update response system 310 may also be integrated into one system.

In this embodiment, the first memory 11 , the second memory 31 , and the third memory 21 may respectively include a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable memory) Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electronically-Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM) or other CD-ROM, magnetic disk, magnetic tape Memory, or any other non-volatile computer-readable storage medium that can be used to carry or store data.

In some embodiments, the first processor 12, the second processor 32 and the third processor 22 may each be composed of integrated circuits. For example, it can be composed of a single packaged integrated circuit, or it can be composed of a plurality of integrated circuits packaged with the same function or different functions, including one or a plurality of central processing units (Central Processing Unit, CPU), microprocessor A combination of computer, digital word processing chip, graphics processor and various control chips, etc.

The first processor 12 is the control core (Control Unit) of the IoT device 1, and uses various interfaces and lines to connect various components of the entire IoT device 1, and is stored in the first memory 11 by executing it. The program or module or instruction, and call the data stored in the first memory 11, to perform various functions of the IoT device 1 and process data, for example, perform the function of software update.

The third processor 22 is the control core (Control Unit) of the server 2 , and uses various interfaces and circuits to connect various components of the entire server 2 , and executes the programs stored in the third memory 21 . Or modules or instructions, and call data stored in the third memory 21 to perform various functions of the server 2 and process data, for example, to perform part of the function of software update control.

The second processor 32 is the control core (Control Unit) of the adjacent device 3 , and uses various interfaces and lines to connect various components of the entire adjacent device 3 , by executing the programs stored in the second memory 31 . Or modules or instructions, and call the data stored in the second memory 31 to perform various functions of the adjacent device 3 and process data, for example, to perform part of the function of the software update response.

In this embodiment, the IoT device software updating system 110 may include one or more modules, and the one or more modules are stored in the first memory 11 and are processed by at least one or more processors (this embodiment For example, the first processor 12) executes the part of the function to realize the software update. In this embodiment, the Internet of Things device software update system 110 can be divided into plural modules according to the functions it performs. Referring to FIG. 2 , the IoT device software update system 110 includes a search module 1101 , a request module 1102 , a decryption module 1103 , and a software update module 1104 . The module referred to in the present invention refers to a series of computer-readable instruction segments that can be executed by at least one processor (eg, the first processor 12 ) and can perform fixed functions, which are stored in a memory (eg, the first processor 12 ). memory 11).

In this embodiment, the integrated unit implemented in the form of a software function module may be stored in a non-volatile readable storage medium. The above-mentioned software function module includes one or more computer-readable instructions, and the first processor 12 implements part of the method of each embodiment of the present invention by executing the one or more computer-readable instructions. In a further embodiment, the code of a computer program is stored in the first memory 11, and the at least one first processor 12 can call the code stored in the first memory 11 to execute the relevant function. For example, each module of the IoT device software updating system 110 in FIG. 2 is a program code stored in the first memory 11 and executed by the at least one first processor 12, thereby realizing the Describe the functions of each module to achieve the purpose of software update.

In this embodiment, the search module 1101 searches for the device information of the neighboring devices 3 around the IoT device 1 by broadcasting.

In this embodiment, the device information of the neighboring device 3 at least includes the identification code, software version and service status of the neighboring device 3, wherein the service status refers to the status of whether to provide a software update function, and the service status includes the provision of software The status of the update function and the status of the software update function not being provided.

The requesting module 1102 obtains the device information of the Internet of Things device 1, and encrypts it according to the device information of the Internet of Things device 1 and the device information of the neighboring device 3 by the first encryption method, and encrypts the encrypted data. The device information of the IoT device 1 and the device information of the neighboring device 3 are sent to the server 2. In this embodiment, the device information of the IoT device 1 at least includes the identification code of the IoT device 1 .

In this embodiment, the request module 1102 encrypts the device information of the IoT device 1 and the device information of the neighboring device 3 according to the public key of the server 2, and encrypts the encrypted The device information of the IoT device 1 and the device information of the neighboring device 3 are sent to the server 2 . The server 2 determines whether the neighboring device 3 has the capability of providing a software update function according to the device information of the neighboring device 3 , and generates control information to the IoT device 1 according to the judgment result. In this embodiment, when the server 2 determines that the adjacent device 3 has the ability to provide a software update function, it generates control information including the public key of the adjacent device 3 and software update information, and sends the control information to The IoT device 1. When the server 2 determines that the adjacent device 3 does not have the ability to provide a software update function, it generates control information including the address information of the software stored in the server 2 and software update information, and sends the control information to the IoT device 1.

The decryption module 1103 decrypts the control information sent by the server 2, and determines whether the decrypted control information is the public key and software update information of the adjacent device 3, or the bit in the server 2 that stores the software. address information and software update information. In this embodiment, the decryption module 1103 decrypts the control information sent by the server 2 according to the private key of the server 2 .

When the decrypted control information is the public key of the adjacent device 3 and the software update information, the software update module 1104 encrypts the software update information with the public key of the adjacent device 3 and sends it to The adjacent device 3 downloads the software corresponding to the software update information from the adjacent device 3 .

When the decrypted control information is the address information and software update information of the software stored in the server 2, the software update module 1104 downloads the software from the server 2 according to the address information and software update information Software corresponding to the software update information.

In this embodiment, the software update control system 210 may include one or more modules, and the one or more modules are stored in the second memory 31 and are processed by at least one or more processors (in this embodiment, The second processor 32) executes to realize the function of software update control.

In this embodiment, the software update control system 210 can be divided into plural modules according to the functions performed by the software update control system 210 . Referring to FIG. 3 , the software update control system 210 includes a first receiving module 2101 and a control module 2102 . The module referred to in the present invention refers to a series of computer-readable instruction segments that can be executed by the third processor 22 of the server 2 and can perform fixed functions, which are stored in the third memory 21 of the server 2 middle.

In this embodiment, the software update control system 210 can be divided into plural modules according to the functions performed by the software update control system 210 . Referring to FIG. 3 , the software update control system 210 includes a first receiving module 2101 and a control module 2102 . The module referred to in the present invention refers to a series of computer-readable instruction segments that can be executed by the third processor 22 of the server 2 and can perform fixed functions, which are stored in the third memory 21 of the server 2 middle.

In this embodiment, the first receiving module 2101 receives the device information of the IoT device 1 and the device information of the neighboring device 3 sent by the IoT device 1, according to the device information of the neighboring device 3 The information determines whether the neighboring device 3 is a legitimate device.

In this embodiment, the first receiving module 2101 determines whether the adjacent device 3 has been registered in the server 2 according to the device information of the adjacent device 3 , when the adjacent device 3 is in the server 2 If it has been registered, it is determined that the neighboring device 3 is a legitimate device. When the neighboring device 3 has not been registered in the server 2, it is determined that the neighboring device 3 is an illegal device.

When the neighboring device 3 is a legitimate device, the control module 2102 determines whether the neighboring device 3 has the ability to provide a software update function according to the software version and service status of the neighboring device 3, and when determining the neighboring device 3 When the device 3 has the capability of providing a software update function, it sends the public key of the neighboring device 3 and the software update information to the Internet of Things device 1 by a second encryption method. In a specific embodiment, the control module 2102 passes the public key of the adjacent device 3 and the software update information through the public key of the server 2 when it is determined that the adjacent device 3 is capable of providing a software update function It is encrypted and sent to the IoT device 1.

When it is determined that the adjacent device 3 is an illegal device or when it is determined that the adjacent device 3 is not capable of providing a software update function, the control module 2102 stores the address information of the software stored in the server 2 and the software The update information is sent to the IoT device 1 by the second encryption method.

In this embodiment, the software update response system 310 can be divided into plural modules according to the functions performed by the software update response system 310 . Referring to FIG. 4 , the software update response system 310 includes a second receiving module 3101 , a judging module 3102 , and a response module 3103 . The module referred to in the present invention refers to a series of computer-readable instruction segments that can be executed by the second processor 32 of the adjacent device 3 and can perform fixed functions, which are stored in the second memory of the adjacent device 3 31.

In this embodiment, the second receiving module 3101 receives the software update information encrypted by the public key of the neighboring device 3 sent by the Internet of Things device 1, and decrypts the private key of the neighboring device 3 to obtain the Software update information.

The determining module 3102 determines whether the software update information is correct.

The response module 3103 is used for sending the software corresponding to the software update information to the IoT device 1 when the software update information is correct.

FIG. 5 is a flowchart of a software update method provided by an embodiment of the present invention. The method is applied in the IoT device 1 . As shown in FIG. 5 , the software updating method specifically includes the following steps. According to different requirements, the order of the steps in the flowchart can be changed, and some steps can be omitted.

Step S501 , searching for device information of neighboring devices 3 around the IoT device 1 by broadcasting.

In this embodiment, the device information of the neighboring device 3 at least includes the identification code, software version and service status of the neighboring device 3, wherein the service status refers to the status of whether to provide a software update function, and the service status includes the provision of software The status of the update function and the status of the software update function not being provided.

Step S502: Acquire the device information of the Internet of Things device 1, encrypt the device information of the Internet of Things device 1 and the device information of the adjacent device 3 by a first encryption The device information of the IoT device 1 and the device information of the neighboring device 3 are sent to the server 2 .

In this embodiment, the device information of the IoT device 1 at least includes the identification code of the IoT device 1 . In this embodiment, the IoT device 1 encrypts the device information of the IoT device 1 and the device information of the neighboring device 3 according to the public key of the server 2, and encrypts the encrypted The device information of the IoT device 1 and the device information of the neighboring device 3 are sent to the server 2 . The server 2 determines whether the neighboring device 3 has the capability of providing a software update function according to the device information of the neighboring device 3 , and generates control information to the IoT device 1 according to the judgment result. In this embodiment, when the server 2 determines that the adjacent device 3 has the ability to provide a software update function, it generates control information including the public key of the adjacent device 3 and software update information, and sends the control information to The IoT device 1. When the server 2 determines that the adjacent device 3 does not have the ability to provide a software update function, it generates control information including the address information of the software stored in the server 2 and software update information, and sends the control information to the IoT device 1.

Step S503, decrypt the control information sent by the server 2, and determine whether the decrypted control information is the public key and software update information of the adjacent device 3, or the address information and software update information of the software stored in the server 2 Information.

Step S504, when the decrypted control information is the public key and software update information of the neighboring device 3, encrypt the software update information with the public key of the neighboring device 3 and send it to the neighboring device 3, and download the software corresponding to the software update information from the adjacent device 3.

Step S505, when the decrypted control information is the address information and software update information of the software stored in the server 2, download and update the software from the server 2 according to the address information and software update information. Update the corresponding software for the information.

FIG. 6 is a flowchart of a software update method provided by an embodiment of the present invention. The method is applied in the server 2 . As shown in FIG. 6 , the software updating method specifically includes the following steps. According to different requirements, the order of the steps in the flowchart can be changed, and some steps can be omitted.

Step S601 , receiving the device information of the IoT device 1 and the device information of the neighboring device 3 sent by the IoT device 1 , and determining whether the neighboring device 3 is a legitimate device according to the device information of the neighboring device 3 .

In this embodiment, the server 2 determines whether the adjacent device 3 has been registered in the server 2 according to the device information of the adjacent device 3 . It is determined that the adjacent device 3 is a legitimate device, and when the adjacent device 3 has not been registered in the server 2, the adjacent device 3 is determined to be an illegal device.

Step S602 , when the neighboring device 3 is a legitimate device, determine whether the neighboring device 3 has the ability to provide a software update function according to the software version and service status of the neighboring device 3 .

Step S603 , when it is determined that the neighboring device 3 has the ability to provide a software update function, send the public key and software update information of the neighboring device 3 to the IoT device 1 by a second encryption method.

In a specific embodiment, when the server 2 determines that the neighboring device 3 has the ability to provide a software update function, the public key of the neighboring device 3 and the software update information are processed by the public key of the server 2 After encryption, it is sent to the IoT device 1.

Step S604, when it is determined that the adjacent device 3 is an illegal device or when it is determined that the adjacent device 3 does not have the ability to provide a software update function, borrow the address information and software update information of the software stored in the server 2. It is sent to the IoT device 1 by the second encryption method.

FIG. 7 is a flowchart of a software update method provided by an embodiment of the present invention. The method is applied in the proximity device 3 . As shown in FIG. 7 , the software updating method specifically includes the following steps. According to different requirements, the order of the steps in the flowchart can be changed, and some steps can be omitted.

Step S701 , the neighboring device 3 receives the software update information encrypted by the public key of the neighboring device 3 sent by the IoT device 1 , and decrypts the software update information with the private key of the neighboring device 3 to obtain the software update information.

Step S702, judging whether the software update information is correct.

Step S703 , when the software update information is correct, send the software corresponding to the software update information to the Internet of Things device 1 .

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division, and other division methods may be used in actual implementation.

The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. superior. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of hardware plus software function modules.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim. Furthermore, it is clear that the word "comprising" does not exclude other units or, and the singular does not exclude the plural. The plural units or means recited in the device claims can also be realized by one unit or means by means of software or hardware. The terms first, second, etc. are used to denote names and do not denote any particular order.

To sum up, the present invention complies with the requirements of an invention patent, and a patent application can be filed in accordance with the law. However, the above descriptions are only the preferred embodiments of the present invention, and for those who are familiar with the techniques of this case, equivalent modifications or changes made in accordance with the creative spirit of this case shall be included in the scope of the following patent application.

110: IoT device software update system 1: IoT Devices 2: Server 3: Nearby devices 11: The first memory 12: The first processor 13: The first communication unit 31: Second memory 32: Second processor 33: Second communication unit 21: Third memory 22: Third processor 4: Internet 210: Software Update Control System 310: Software Update Response System 1101: Search Module 1102: Request Module 1103: Decryption module 1104: Software Update Module 2101: The first receiving module 2102: Control Module 3101: Second receiving module 3102: Judgment Module 3103: Response module S501~S505: Steps S601~S604: Steps S701~S703: Steps

FIG. 1 is a structural diagram of a software updating system for an Internet of Things device according to a preferred embodiment of the present invention. FIG. 2 is a functional module diagram of an IoT device software update system according to a preferred embodiment of the present invention. FIG. 3 is a functional module diagram of a software update control system according to a preferred embodiment of the present invention. FIG. 4 is a functional module diagram of a software update response system according to a preferred embodiment of the present invention. FIG. 5 is a flowchart of a software update method according to an embodiment of the present invention. FIG. 6 is a flowchart of a software update method according to another embodiment of the present invention. FIG. 7 is a flowchart of a software update method according to another embodiment of the present invention.

S501~S505: Steps

Claims (10)

An Internet of Things device, comprising a processing unit, the improvement is that the processing unit is used for: Searching for device information of neighboring devices around the IoT device by broadcasting; Obtain the device information of the IoT device, encrypt the device information of the IoT device by a first encryption method according to the device information of the IoT device and the device information of the neighboring device, and encrypt the encrypted device information of the IoT device and the device information of said neighboring device to the server; Decrypt the control information sent by the server, and determine whether the decrypted control information is the public key and software update information of the adjacent device, or the address information and software update information of the software stored in the server; When the decrypted control information is the public key of the adjacent device and the software update information, encrypt the software update information with the public key of the adjacent device and send it to the adjacent device, and send the software update information from the adjacent device to the adjacent device. download the software corresponding to the software update information in the adjacent device; and When the decrypted control information is the address information and software update information of the software stored in the server, download the software corresponding to the software update information from the server according to the address information and software update information . The Internet of Things device according to claim 1, wherein the device information of the neighboring device at least includes the identification code, software version and service status of the neighboring device, wherein the service status refers to the status of whether a software update function is provided , the service status includes a status of providing a software update function and a status of not providing a software update function. The Internet of Things device according to claim 1, wherein the encrypting according to the device information of the Internet of Things device and the device information of the neighboring devices by a first encryption method comprises: The device information of the IoT device and the device information of the neighboring device are encrypted according to the public key of the server. The Internet of Things device according to claim 3, wherein the decrypting the control information comprises: The control information sent by the server is decrypted according to the private key of the server. A server, comprising a processing unit, the improvement is that the processing unit is used for: Receive the device information of the IoT device and the device information of the neighboring device sent by the IoT device, and determine whether the neighboring device is a legitimate device according to the device information of the neighboring device; When the neighboring device is a legitimate device, determine whether the neighboring device has the ability to provide a software update function according to the software version and service status of the neighboring device; When it is determined that the adjacent device has the ability to provide a software update function, the public key of the adjacent device and the software update information are sent to the Internet of Things device by a second encryption method; When it is determined that the adjacent device is an illegal device or when it is determined that the adjacent device does not have the ability to provide a software update function, send the address information of the software stored in the server and the software update information by a second encryption method to the IoT device. The server according to claim 5, wherein the sending the address information and software update information of the software stored in the server to the Internet of Things device by a second encryption method comprises: The public key of the adjacent device and the software update information are encrypted by the public key of the server and sent to the Internet of Things device. A software update method, applied in an Internet of Things device, is improved in that the method includes: Searching for device information of neighboring devices around the IoT device by broadcasting; Obtain the device information of the IoT device, encrypt the device information of the IoT device by a first encryption method according to the device information of the IoT device and the device information of the neighboring device, and encrypt the encrypted device information of the IoT device and the device information of said neighboring device to the server; Decrypt the control information sent by the server, and determine whether the decrypted control information is the public key and software update information of the adjacent device, or the address information and software update information of the software stored in the server; When the decrypted control information is the public key of the adjacent device and the software update information, encrypt the software update information with the public key of the adjacent device and send it to the adjacent device, and send the software update information from the adjacent device to the adjacent device. download the software corresponding to the software update information in the adjacent device; and When the decrypted control information is the address information and software update information of the software stored in the server, download the software corresponding to the software update information from the server according to the address information and software update information . The software update method according to claim 7, wherein the encrypting by the first encryption method according to the device information of the IoT device and the device information of the neighboring device comprises: The device information of the IoT device and the device information of the neighboring device are encrypted according to the public key of the server. A software update method, applied in a server, is improved in that the method includes: Receive the device information of the IoT device and the device information of the neighboring device sent by the IoT device, and determine whether the neighboring device is a legitimate device according to the device information of the neighboring device; When the neighboring device is a legitimate device, determine whether the neighboring device has the ability to provide a software update function according to the software version and service status of the neighboring device; When it is determined that the adjacent device has the ability to provide a software update function, the public key of the adjacent device and the software update information are sent to the Internet of Things device by a second encryption method; When it is determined that the adjacent device is an illegal device or when it is determined that the adjacent device does not have the ability to provide a software update function, send the address information of the software stored in the server and the software update information by a second encryption method to the IoT device. A software update method, applied in a neighboring device, is improved in that the method comprises: Receive the software update information encrypted by the public key of the adjacent device sent by the Internet of Things device, and decrypt the software update information by the private key of the adjacent device to obtain the software update information; Determine whether the software update information is correct; When the software update information is correct, the software corresponding to the software update information is sent to the Internet of Things device.

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