WO2020098382A1 - Implementation method for smart device system, smart device control method and system - Google Patents

Abstract

The present invention belongs to the technical field of block chain technology, and disclosed thereby are an an implementation method for a smart device system, a smart device control method and system. The method comprises: forming a private chain network for a plurality of smart devices connected to a local area network; each smart device respectively obtaining a smart contract having a plurality of functions which is issued by a user, and deploying the smart contract to the private chain network after being authenticated by users; when a smart device receives an initialization request of a user, the smart device obtaining user sensitive data in the device initialization request and generating corresponding first initial information for the user sensitive data; and calling an adding function of the smart contract to write the first initial information into the private chain. According to the embodiments of the present invention, the user sensitive data acquired by the smart device is stored on the private chain by means of the smart contract, which can avoid the leakage of user sensitive data and fully guarantee the privacy and security of the user sensitive data.

Description

Method for realizing intelligent equipment system, intelligent equipment control method and system Technical field

The present invention relates to the field of blockchain technology, and in particular, to an intelligent device system implementation method, intelligent device control method, and system.

Background technique

Smart device refers to any kind of device, apparatus or machine with computing power. With the development of science, more and more smart devices appear in people's daily life, such as smart door locks, smart speakers, smart air conditioners , Smart TV, smart routing, etc., these smart devices are connected to the network through the WiFi of the home router, and then controlled by the application of the smartphone.

In the process of implementing the present invention, the inventor found that many data of the existing smart devices are stored in the cloud of the manufacturer, and then controlled by the mobile phone, which is easy to cause leakage of personal information, and criminals also You can use vulnerabilities to tamper with data to achieve the purpose of controlling smart devices.

Summary of the invention

The purpose of the present invention is to provide a method for implementing a smart device system, a smart device control method and a system, storing user sensitive data in a smart device on a private chain through a smart contract, which can avoid the leakage of user sensitive data and fully guarantee the user The privacy and security of sensitive data.

The specific technical solutions provided by the embodiments of the present invention are as follows:

In the first aspect, a method for implementing a smart device system is provided, including:

Form a private chain network for multiple smart devices connected to the LAN;

Each of the smart devices obtains a smart contract with multiple functions issued by the user, and deploys the smart contract on the private chain network after confirmation by the user;

When the smart device receives the device initialization request of the user, the smart device obtains the user sensitive data in the device initialization request;

Generate corresponding first initial information for the user sensitive data, and call the added function of the smart contract to write the first initial information into the private chain.

Further, after the step of calling the added function of the smart contract to write the information into the private chain, the method further includes:

When the smart device receives the user's device use request, the smart device obtains user input data in the device use request, and generates corresponding information to be queried for the user input data; and

Calling the query function of the smart contract to query the information to be queried in the private chain;

The smart device determines whether to allow the operation to be used according to the query result of the smart contract.

Further, the user-sensitive data is initial fingerprint data input by the user, and the corresponding first initial information is generated for the user-sensitive data, and the additional function of the smart contract is invoked to transfer the first An initial message is written into the private chain, including:

Converting the initial fingerprint data into an initial hash value by the smart device, and generating an initial composite key according to the initial hash value and the device ID of the smart device;

Generating a value according to the startup mode of the smart device and the entry time of the initial fingerprint data;

Write the initial composite key and the value correspondingly to the private chain through the added function of the smart contract.

Further, the user input data is fingerprint data of the user, the corresponding query information is generated for the user input data, and the query function of the smart contract is invoked to store the query information in the private Query in the chain, including:

The smart device converts the fingerprint data into a hash value, and generates a composite key according to the hash value and the device ID of the smart device;

Calling the query function of the smart contract to query whether the value corresponding to the composite key exists in the private chain, and receive the query result returned by the smart contract;

Wherein, the query result is used to indicate whether the smart device is allowed to be used for operation.

Further, the method further includes:

When the client receives the device initialization request of the user for the smart device, the client obtains the initial password set by the user, and generates a corresponding 2. Initial information; and

Write the device ID of the smart device and the second initial information into the verification function of the smart contract corresponding to the preset algorithm to update the smart contract;

Each smart device upgrades the smart contract according to the user's confirmation operation.

Further, after the step of upgrading the smart contract by each of the smart devices according to the confirmation operation of the user, the method further includes:

When the smart device receives the user's device use request, the smart device obtains the user's input password;

Calling the verification function of the smart contract to generate corresponding information on the input password using the preset algorithm, and comparing and verifying the information with the second initial information corresponding to the device ID of the smart device;

Receiving the verification result returned by the smart contract, and determining whether the operation is allowed to be used according to the verification result.

Further, the preset algorithm is a hash algorithm.

Further, the method further includes:

When the smart device receives the user's request to modify the user's sensitive data, it calls the modification function of the smart contract to modify the user's sensitive data;

When the smart device receives the user's request to delete the user's sensitive data, it calls the delete function of the smart contract to delete the user's sensitive data.

In a second aspect, a method for controlling a smart device is provided. The method is applied to a smart device in a private chain network. The private chain network is composed of the smart device and other smart devices, and the private chain network is deployed. For smart contracts issued by users, the method includes:

When the smart device receives the user's device use request, the smart device obtains the user input data in the device use request;

Generate corresponding information to be queried for the user input data, and call the smart contract to query the information to be queried in a private chain, wherein the private chain pre-stores initial information generated based on user sensitive data ;

According to the query result of the smart contract, it is determined whether the operation to be used is allowed.

In a third aspect, a method for controlling a smart device is provided. The method is applied to a smart device in a private chain network. The private chain network is composed of the smart device and other smart devices, and the private chain network is deployed with For smart contracts issued by users, the method includes:

When the smart device receives the user's device use request, the smart device obtains the user's input password;

Calling the smart contract, so that the smart contract uses the preset algorithm to generate corresponding information on the input password, and compares and verifies the information with the initial information corresponding to the device ID of the smart device, Wherein, the initial information is generated based on the initial password set by the user;

Receiving the verification result returned by the smart contract, and determining whether the operation is allowed to be used according to the verification result.

In a fourth aspect, an intelligent device system is provided, the system includes a client and multiple smart devices connected to a local area network, and the multiple smart devices form a private chain network;

Each of the smart devices includes:

A contract acquisition module, which is used to separately acquire smart contracts with multiple functions issued by the user through the client with other smart devices in the private chain network;

A contract deployment module for deploying the smart contract to the private chain network after confirmation by the user;

A data acquisition module, configured to acquire user sensitive data in the device initialization request when receiving the device initialization request of the user;

A first generating module, configured to generate corresponding first initial information for the user sensitive data; and

A contract invoking module for invoking the added function of the smart contract to write the first initial information into the private chain.

Further, the data acquisition module is further configured to acquire user input data in the device use request when receiving the user device use request;

The first generating module is also used to generate corresponding information to be queried by the user input data;

The contract calling module is also used to call the query function of the smart contract to query the information to be queried in the private chain;

Each of the smart devices further includes:

The operation control module is used to determine whether the smart device is allowed to be operated according to the query result of the smart contract.

Further, the user sensitive data is initial fingerprint data input by the user, and the first generation module is specifically configured to:

Converting the initial fingerprint data into an initial hash value, and generating an initial composite key based on the initial hash value and the device ID of the smart device; and

Generating a value according to the startup mode of the smart device and the entry time of the initial fingerprint data;

The contract calling module is specifically used for:

Write the initial composite key and the value correspondingly to the private chain through the added function of the smart contract.

Further, the user input data is fingerprint data of the user, and the first generation module is specifically further used to:

Convert the fingerprint data into a hash value, and generate a composite key according to the hash value and the device ID of the smart device;

The contract calling module is also specifically used for:

Calling the query function of the smart contract to query whether the value corresponding to the composite key exists in the private chain, and receive the query result returned by the smart contract;

Wherein, the query result is used to indicate whether the smart device is allowed to be used for operation.

Further, the system further includes a client, and the client includes:

A password obtaining module, configured to obtain the initial password set by the user by the client when receiving the device initialization request of the user for the smart device;

A second generation module, configured to generate corresponding second initial information for the initial password using a preset algorithm;

An information writing module, configured to write the device ID of the smart device, the second initial information corresponding to the preset algorithm into the verification function of the smart contract, so as to update the smart contract;

Each of the smart devices further includes:

A contract upgrade module is used to upgrade the smart contract according to the confirmation operation of the user.

Further, the data acquisition module is also specifically used to:

When receiving the user's device use request, obtain the user's input password;

The contract calling module is also specifically used for:

Invoke the verification function of the smart contract, so that the smart contract uses the preset algorithm to generate corresponding information for the input password, and the information corresponds to the second device ID of the smart device Compare and verify the initial information;

Receiving the verification result returned by the smart contract, and determining whether the operation is allowed to be used according to the verification result.

Further, the preset algorithm is a hash algorithm.

Further, the contract calling module is also specifically used for:

When receiving the user's request to modify the user's sensitive data, invoke the modification function of the smart contract to modify the user's sensitive data;

When receiving the user's request to delete the sensitive data of the user, the delete function of the smart contract is called to delete the sensitive data of the user.

The beneficial effects brought by the technical solutions provided by the embodiments of the present invention are:

1. Because the initial information generated by the user's sensitive data is written into the private chain through a smart contract, and the content of the smart contract cannot be modified when a single smart device is broken, only by breaking all the smart devices in the private chain network can the deployment of new smart contracts In order to bypass the originally deployed smart contract, this makes it difficult for criminals to obtain user sensitive data, thereby making user sensitive data more secure;

2. In the embodiment of the present invention, since the user sensitive data is stored in the private chain of the local area network, the leakage of the user sensitive data is avoided, which makes it difficult for criminals to obtain the user sensitive data, and the user sensitive data can only be operated and read by the user, thereby avoiding In the prior art, the security problem of user sensitive data stored in the cloud or stored locally;

3. Because multiple smart devices forming the private chain network are connected to the local area network, criminals cannot conduct malicious attacks through the public network;

4. Compared with the prior art, when the user sensitive data is stored in the cloud, the user must connect to the server through the public network for identity verification. In the embodiment of the present invention, because the user sensitive data is stored in the private chain of the LAN, the user can directly access the LAN Identity verification, identity verification is more efficient.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present invention, the drawings required in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on these drawings.

1 is a flowchart of a method for implementing an intelligent device system provided by the present invention;

2 is a flowchart of an implementation method of a smart device system provided by the present invention;

3 is a flowchart of a method for implementing an intelligent device system provided by the present invention;

4 is a flowchart of an implementation method of a smart device system provided by the present invention;

5 is a schematic structural diagram of a smart device system provided by the present invention;

FIG. 6 is a schematic flowchart of the smart door lock password opening process provided by the present invention;

7 is a system block diagram of an intelligent device system provided by the present invention.

detailed description

To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are merely Some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

In the description of the present application, it should be understood that the terms "first", "second", etc. are for descriptive purposes only, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise stated, the meaning of "plurality" is two or more.

Before describing the implementation method of the smart device system provided by the present invention, the terms involved in the embodiments of the present invention will be introduced first.

Regarding the blockchain, the blockchain is a new application model that integrates computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. According to the degree of centralization of the blockchain network, three different application scenarios of blockchains are differentiated:

1. The whole network is open, and the blockchain without user authorization mechanism is called public chain;

2. Allow authorized nodes to join the network and view information according to permissions. It is often used in inter-institutional blockchains, called alliance chains;

3. All the nodes in the network are in the hands of an institution, called a private chain.

Example one

FIG. 1 is a flowchart of a method for implementing an intelligent device system provided by the present invention. As shown in FIG. 1, the method may include the following steps:

101. A private chain network is formed for multiple smart devices connected to the local area network.

Among them, multiple smart devices include but are not limited to smart door locks, smart speakers, smart air conditioners, smart TVs, smart routers, etc. Smart devices can use sensors to collect user fingerprint data, environmental data, and other information. Among them, the sensors can be integrated on the smart device, or can be connected to the smart device through wired or wireless means.

102. Each smart device obtains a smart contract with multiple functions issued by the user, and deploys the smart contract to the private chain network after the user confirms it.

Among them, the smart contract has multiple functions, including: add function, delete function, query function, modify function and verification function;

Specifically, the process may include:

Each smart device obtains a smart contract issued by the user in one of the following ways:

Client with contract release function;

Smart devices with contract issuance function among multiple smart devices;

The client may specifically be a terminal device such as a mobile terminal or a personal PC.

After each smart device is confirmed by the user through the button, the smart contract is deployed on the private chain network.

103. When the smart device receives the user's device initialization request, the smart device obtains the user sensitive data in the device initialization request.

Among them, the user sensitive data may be user characteristic information such as user fingerprint data, iris data, or other sensitive data.

In this embodiment, after deploying multiple smart devices to form a private chain network, the user needs to initialize the smart devices so that the smart devices can be used later. When the user needs to initialize the smart device, the fingerprint input method can be used for initialization. Taking the smart door lock as an example, the user can input his fingerprint data into the smart door lock through the sensor to initialize the smart door lock.

104. Generate corresponding first initial information for the user's sensitive data, and call the added function of the smart contract to write the first initial information into the private chain.

Specifically, the smart device converts the initial fingerprint data into an initial hash value, and generates an initial composite key based on the initial hash value and the device ID of the smart device; a value value is generated according to the startup method of the smart device and the entry time of the initial fingerprint data; Write the initial composite key and value to the private chain through the added function of the smart contract.

In the specific implementation process, the smart device can use the hash algorithm to hash the initial fingerprint data to generate an initial hash value, where the hash algorithm can be any safe and reliable hash algorithm, such as SHA256, State Secret SM3 or State Secret SM4, etc. .

In the embodiment of the present invention, since the initial information generated by the user's sensitive data is written into the private chain through a smart contract, and the content of the smart contract cannot be modified when a single smart device is broken, only all smart devices in the private chain network can be deployed New smart contracts can bypass the previously deployed smart contracts, which makes it difficult for criminals to obtain user sensitive data, and user sensitive data can only be operated and read by users, thereby making user sensitive data more secure; at the same time, due to the composition Multiple smart devices in the private chain network are connected to the local area network, making it impossible for criminals to conduct malicious attacks through the public network; in addition, compared with the existing technology, when user sensitive data is stored in the cloud, users must connect through the public network The server performs identity verification. Since the user sensitive data is stored in the private chain of the local area network in the embodiment of the present invention, the user can directly access the local area network for identity verification, and the identity verification is more efficient.

Further, the method provided by the embodiment of the present invention may further include:

When the smart device receives the user's request to modify the user's sensitive data, the smart contract's modification function is called to modify the user's sensitive data; when the smart device receives the user's user's sensitive data deletion request, the smart contract's deletion function is called Delete sensitive user data.

In the embodiment of the present invention, the modification function or the deletion function of the smart contract facilitates the modification or deletion of the user's sensitive data.

Further, the method provided by the embodiment of the present invention may further include:

The smart device records the operation of the user's sensitive data on the private chain for the user to trace and view.

In the embodiment of the present invention, the operation of the user's sensitive data is recorded on the private chain, which can prevent the user's sensitive data from being illegally queried and tampered, and thus can fully guarantee the privacy and security of the user's sensitive data.

Example 2

2 is a flowchart of a method for implementing a smart device system provided by the present invention. In this embodiment, the method for implementing a smart device system includes steps 201 to 204 in addition to the steps described in FIG. 1, For simplicity of description, the steps described in FIG. 1 are omitted. As shown in FIG. 2, the implementation method of the smart device system further includes:

201. When the smart device receives the user's device use request, the smart device obtains the user input data in the device use request.

In this embodiment, after completing the initialization of the smart device, the user can perform corresponding operations on the smart device. Taking the smart door lock as an example, when the user needs to open the smart door lock, the smart door lock can be opened by means of fingerprint input, that is, the fingerprint data is input into the smart door lock through the sensor.

202. Generate corresponding information to be queried for user input data.

Wherein, the user input data is fingerprint data of the user.

Specifically, the smart device converts the fingerprint data into a hash value, and generates a composite key according to the hash value and the device ID of the smart device as the information to be queried.

In the specific implementation process, the smart device may use a hash algorithm to hash the user input data to generate a hash value, where the hash algorithm may be any safe and reliable hash algorithm, such as SHA256, State Secret SM3, or State Secret SM4.

203. Call the query function of the smart contract to query the query information in the private chain.

Specifically, the query function of the smart contract is called to query whether there is a value corresponding to the composite key in the private chain, and receive the query result returned by the smart contract; where the query result is used to indicate whether the smart device is allowed to be used for operation.

204. The smart device determines whether the operation to be used is allowed according to the query result of the smart contract.

Among them, when the query result indicates that the query is successful, the smart device is allowed to be used for operation, and when the query result indicates that the query fails, the smart device is not allowed to be used for operation.

In the embodiment of the present invention, when a user uses a smart device, the user's input data is obtained and the corresponding information to be queried is generated, and the corresponding query is performed by invoking the query function of the smart contract, so that the smart device determines whether to query the smart contract The operation is allowed to be used, thereby preventing the smart device from being controlled by the criminals.

Example Three

3 is a flowchart of a method for implementing a smart device system provided by the present invention. In this embodiment, the method for implementing a smart device system includes steps 301 to 304 in addition to the steps described in FIG. 1, For simplicity of description, the steps described in FIG. 1 are omitted. As shown in FIG. 3, the implementation method of the smart device system further includes:

301. When the user's client receives the user's device initialization request for the smart device, the client obtains the initial password set by the user.

In this embodiment, after deploying multiple smart devices to form a private chain network, the user needs to initialize the smart devices so that the smart devices can be used later. When the user needs to initialize the smart device, in addition to the fingerprint input mode to initialize the smart device, the password input mode can also be used to initialize the smart device. Taking the smart door lock as an example, the user can use the mobile phone client to set the door unlock password of the smart door lock to initialize the smart door lock.

302. Use a preset algorithm to generate corresponding second initial information for the initial password.

Among them, the preset algorithm is a hash algorithm.

Specifically, the client may use a hash algorithm to hash the initial password to generate an initial hash value, where the hash algorithm may be any safe and reliable hash algorithm, such as SHA256, State Secret SM3, or State Secret SM4.

303. Write the device ID and the second initial information of the smart device into the verification function of the smart contract corresponding to the preset algorithm to update the smart contract.

304. Each smart device upgrades the smart contract according to the user's confirmation operation.

Specifically, after each smart device is confirmed by a user through a button, the smart contract is upgraded.

In the embodiment of the present invention, since the second initial information generated by the initial password set by the user is written into the private chain through a smart contract, when the user needs to change the initial password, it can be achieved by upgrading the contract.

Example 4

4 is a flowchart of a method for implementing a smart device system provided by the present invention. In this embodiment, the method for implementing a smart device system includes steps 401 to 403 in addition to the steps described in FIG. 3, For simplicity of description, the steps described in FIG. 3 are omitted. As shown in FIG. 4, the implementation method of the smart device system further includes:

401. When the smart device receives the user's device use request, the smart device obtains the user's input password.

In this embodiment, after completing the initialization of the smart device, the user can perform corresponding operations on the smart device. Taking the smart door lock as an example, when the user needs to open the smart door lock, the smart door lock can be opened by using a password input method, that is, the password is input into the smart door lock through the mobile client.

402. Call the verification function of the smart contract, so that the smart contract uses a preset algorithm to generate corresponding information for the input password, and compare and verify the information with the second initial information corresponding to the device ID of the smart device.

Specifically, the smart device invokes the verification function of the smart contract, performs a hash operation on the input password through the smart contract, and compares the hash operation result with the hash operation result of the initial password written in the smart contract to generate a verification result; wherein , The verification result is used to indicate whether the smart device is allowed to be used for operation.

403. Receive the verification result returned by the smart contract, and determine whether to allow the operation to be used according to the verification result.

Among them, the verification result is used to indicate whether the smart device is allowed to be used for operation.

Among them, when the verification result indicates that the verification is passed, the smart device is allowed to be used for operation, and when the verification result indicates that the verification is not passed, the smart device is not allowed to be used for operation.

In the embodiment of the present invention, when the user uses the smart device, the user's input password is obtained, and the corresponding verification is performed by calling the verification function of the smart contract, so that the smart device determines whether the operation is permitted according to the verification result returned by the smart contract. This can prevent smart devices from being controlled by criminals.

Example 5

An embodiment of the present invention provides a method for controlling a smart device. The method is applied to a smart device in a private chain network. The private chain network is composed of smart devices and other smart devices, and a smart contract issued by a user is deployed in the private chain network. Methods include:

501. When the smart device receives the user's device use request, the smart device obtains the user input data in the device use request.

Specifically, this step is the same as step 201, and will not be repeated here.

502. Generate corresponding information to be queried for user input data.

Specifically, this step is the same as step 202, and will not be repeated here.

503. Call the smart contract to query the information to be queried in the private chain, where the private chain pre-stores the initial information generated based on the user's sensitive data.

Specifically, this step is the same as step 203 and will not be repeated here.

504: Determine whether the operation to be used is allowed according to the query result of the smart contract.

Specifically, this step is the same as step 204, and will not be repeated here.

In the embodiment of the present invention, when a user uses a smart device, the user's input data is obtained and corresponding information to be queried is generated, and the corresponding query is performed by calling a smart contract, so that the smart device determines whether it is allowed to be used according to the query result returned by the smart contract The operation can thereby prevent the smart device from being controlled by criminals.

Example Six

An embodiment of the present invention provides a method for controlling a smart device. The method is applied to a smart device in a private chain network. The private chain network is composed of smart devices and other smart devices, and a smart contract issued by a user is deployed in the private chain network. The method includes:

601. When the smart device receives the user's device use request, the smart device obtains the user's input password;

Specifically, this step is the same as step 401, and will not be repeated here.

602. Call the smart contract, so that the smart contract uses a preset algorithm to generate the corresponding information for the input password, and compares the information with the initial information corresponding to the device ID of the smart device, where the initial information is based on the user setting Generated by the initial password;

Specifically, this step is the same as step 402, and will not be repeated here.

603. Receive the verification result returned by the smart contract, and determine whether to allow the operation to be used according to the verification result.

Specifically, this step is the same as step 403 and will not be repeated here.

In the embodiment of the present invention, when the user uses the smart device, the user's input password is obtained, and the corresponding verification is performed by calling the smart contract, so that the smart device determines whether the operation is permitted according to the verification result returned by the smart contract, thereby avoiding Smart devices are controlled by criminals.

The method provided by the embodiment of the present invention will be exemplarily described below with reference to FIGS. 5 and 6. Assuming that multiple smart devices connected to the local area network include smart door locks, smart speakers, smart TVs, and smart routers, after performing the method of the embodiments of the present invention on the multiple smart devices, the schematic diagram of the obtained smart device system architecture may refer to FIG. 5 As shown. If the user uses a smart door lock to open the door, as shown in FIG. 6, FIG. 6 is a schematic flowchart of the smart door lock password opening process provided by the present invention. The user enters the password and the smart door lock calls the verification function of the smart contract to perform the corresponding verification. When the verification is successful, the smart door lock allows the door opening operation.

Example 7

FIG. 7 is a system block diagram of a smart device system provided by the present invention. The system may include a client and multiple smart devices connected to a local area network. The multiple smart devices form a private chain network, as shown in FIG. 7, for ease of description. Clearly, the following describes the blockchain-based smart device system with only the client 710 and the smart device 710 located in the private chain network, where the smart device 720 is configured as any one of multiple smart devices:

Client 710 includes:

The contract issuing module 711 is used to publish smart contracts with multiple functions to each smart device of the private chain network;

The smart device 720 includes:

The contract acquisition module 721 is used to separately acquire smart contracts issued by users with other smart devices in the private chain network;

The contract deployment module 722 is used to deploy the smart contract to the private chain network after confirmation by the user;

The data obtaining module 723 is used to obtain user sensitive data in the device initialization request when the user's device initialization request is received;

The first generating module 724 is configured to generate corresponding first initial information for user sensitive data; and

The contract calling module 725 is used to call the added function of the smart contract to write the first initial information into the private chain.

Further, the data obtaining module 723 is also used to obtain user input data in the device use request when the user's device use request is received;

The first generating module 724 is also used for user input data to generate corresponding information to be queried;

The contract calling module 725 is also used to call the query function of the smart contract to query the information to be queried in the private chain;

The smart device 720 also includes:

The operation control module 726 is used to determine whether the smart device is allowed to be operated according to the query result of the smart contract.

Further, the user sensitive data is the initial fingerprint data input by the user, and the first generation module 724 is specifically used to:

Convert the initial fingerprint data into an initial hash value, and generate an initial composite key based on the initial hash value and the device ID of the smart device; and

The value value is generated according to the startup mode of the smart device and the entry time of the initial fingerprint data;

The contract calling module is specifically used for:

Write the initial composite key and value to the private chain through the added function of the smart contract.

Further, the user input data is the user's fingerprint data, and the first generation module 724 is specifically used to:

Convert the fingerprint data into a hash value, and generate a composite key based on the hash value and the device ID of the smart device;

The contract calling module 725 is also specifically used for:

Call the query function of the smart contract to query whether there is a value corresponding to the composite key in the private chain, and receive the query result returned by the smart contract;

Among them, the query result is used to indicate whether the smart device is allowed to be used for operation.

Further, the client 710 further includes:

The password obtaining module 712 is configured to obtain an initial password set by the user by the client when receiving a device initialization request from the user for the smart device;

The second generation module 713 is used to generate corresponding second initial information for the initial password using a preset algorithm;

The information writing module 714 is used to write the device ID and the second initial information of the smart device into the verification function of the smart contract corresponding to the preset algorithm to update the smart contract;

Smart devices also include:

The contract upgrade module 727 is used to upgrade the smart contract according to the user's confirmation operation.

Further, the data acquisition module 723 is also specifically used to:

When receiving the user's device use request, obtain the user's input password;

The contract calling module 725 is also specifically used for:

Invoke the verification function of the smart contract, so that the smart contract uses a preset algorithm to generate corresponding information for the input password, and compares the information with the second initial information corresponding to the device ID of the smart device;

Receive the verification result returned by the smart contract, and determine whether to allow the operation to be used according to the verification result.

Further, the preset algorithm is a hash algorithm.

Further, the contract calling module 725 is also specifically used for:

When receiving the user's request to modify the user's sensitive data, call the smart contract modification function to modify the user's sensitive data;

When the user deletes the user's sensitive data request, the delete function of the smart contract is called to delete the user's sensitive data.

It should be noted that in the smart device system provided in the above embodiment, only the division of the above functional modules is used as an example for illustration. In actual applications, the above functions can be allocated by different functional modules according to needs, that is, the internal of the device The structure is divided into different functional modules to complete all or part of the functions described above. In addition, the foregoing smart device system and the smart device system implementation method and the smart device control method embodiment belong to the same concept. For the specific implementation process and beneficial effects, refer to the method embodiment for details, and details are not described here.

A person of ordinary skill in the art may understand that all or part of the steps for implementing the above embodiments may be completed by hardware, or may be completed by a program instructing associated hardware. The program may be stored in a computer-readable storage medium The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present invention should be included in the protection of the present invention Within range.

Claims (12)

1. An implementation method of a smart device system, which is characterized by comprising:

   Form a private chain network for multiple smart devices connected to the LAN;

   Each of the smart devices obtains a smart contract with multiple functions issued by the user, and deploys the smart contract on the private chain network after confirmation by the user;

   When the smart device receives the device initialization request of the user, the smart device obtains the user sensitive data in the device initialization request;

   Generate corresponding first initial information for the user sensitive data, and call the added function of the smart contract to write the first initial information into the private chain.
2. The method according to claim 1, wherein after the step of calling the added function of the smart contract to write the information into the private chain, the method further comprises:

   When the smart device receives the user's device use request, the smart device obtains the user input data in the device use request;

   Generating corresponding information to be queried for the user input data, and calling the query function of the smart contract to query the information to be queried in the private chain;

   The smart device determines whether to allow the operation to be used according to the query result of the smart contract.
3. The method according to claim 1 or 2, wherein the user sensitive data is initial fingerprint data input by the user, the corresponding first initial information is generated for the user sensitive data, and the The added function of the smart contract writes the first initial information into the private chain, including:

   Converting the initial fingerprint data into an initial hash value by the smart device, and generating an initial composite key according to the initial hash value and the device ID of the smart device;

   Generating a value according to the startup mode of the smart device and the entry time of the initial fingerprint data;

   Write the initial composite key and the value correspondingly to the private chain through the added function of the smart contract.
4. The method according to claim 3, wherein the user input data is fingerprint data of the user, the corresponding information to be queried is generated for the user input data, and a query function of the smart contract is invoked Querying the information to be queried in the private chain includes:

   The smart device converts the fingerprint data into a hash value, and generates a composite key according to the hash value and the device ID of the smart device;

   Calling the query function of the smart contract to query whether the value corresponding to the composite key exists in the private chain, and receive the query result returned by the smart contract;

   Wherein, the query result is used to indicate whether the smart device is allowed to be used for operation.
5. The method according to claim 1, wherein the method further comprises:

   When the client of the user receives the device initialization request of the user for the smart device, the client obtains the initial password set by the user;

   Use a preset algorithm to generate corresponding second initial information for the initial password;

   Write the device ID of the smart device and the second initial information into the verification function of the smart contract corresponding to the preset algorithm to update the smart contract;

   Each smart device upgrades the smart contract according to the user's confirmation operation.
6. The method according to claim 5, wherein after the step of upgrading the smart contract by each of the smart devices according to the confirmation operation of the user, the method further comprises:

   When the smart device receives the user's device use request, the smart device obtains the user's input password;

   Invoke the verification function of the smart contract, so that the smart contract uses the preset algorithm to generate corresponding information for the input password, and the information corresponds to the second device ID of the smart device Compare and verify the initial information;

   Receiving the verification result returned by the smart contract, and determining whether the operation is allowed to be used according to the verification result.
7. The method according to claim 5 or 6, wherein the preset algorithm is a hash algorithm.
8. The method according to claim 1, wherein the method further comprises:

   When the smart device receives the user's request to modify the user's sensitive data, it calls the modification function of the smart contract to modify the user's sensitive data;

   When the smart device receives the user's request to delete the user's sensitive data, it calls the delete function of the smart contract to delete the user's sensitive data.
9. A method for controlling a smart device, characterized in that the method is applied to a smart device in a private chain network, the private chain network is composed of the smart device and other smart devices, and the private chain network is deployed with users For published smart contracts, the method includes:

   When the smart device receives the user's device use request, the smart device obtains the user input data in the device use request;

   Generate corresponding information to be queried for the user input data, and call the smart contract to query the information to be queried in a private chain, wherein the private chain pre-stores initial information generated based on user sensitive data ;

   According to the query result of the smart contract, it is determined whether the operation to be used is allowed.
10. A method for controlling a smart device, characterized in that the method is applied to a smart device in a private chain network, the private chain network is composed of the smart device and other smart devices, and the private chain network is deployed with users For published smart contracts, the method includes:

    When the smart device receives the user's device use request, the smart device obtains the user's input password;

    Calling the smart contract, so that the smart contract uses the preset algorithm to generate corresponding information on the input password, and compares and verifies the information with the initial information corresponding to the device ID of the smart device, Wherein, the initial information is generated based on the initial password set by the user;

    Receiving the verification result returned by the smart contract, and determining whether the operation is allowed to be used according to the verification result.
11. An intelligent device system, characterized in that the system includes a plurality of intelligent devices connected to a local area network, and the plurality of intelligent devices form a private chain network;

    Each of the smart devices includes:

    The contract acquisition module is used to acquire smart contracts with multiple functions issued by users separately from other smart devices in the private chain network;

    A contract deployment module for deploying the smart contract to the private chain network after confirmation by the user;

    A data acquisition module, configured to acquire user sensitive data in the device initialization request when receiving the device initialization request of the user;

    A first generating module, configured to generate corresponding first initial information for the user sensitive data; and

    The contract calling module is used to call the added function of the smart contract to write the initial information into the private chain.
12. The system of claim 11, wherein:

    The data acquisition module is also used to acquire user input data in the device use request when the user's device use request is received;

    The first generating module is also used to generate corresponding information to be queried by the user input data;

    The contract calling module is also used to call the query function of the smart contract to query the information to be queried in the private chain;

    Each of the smart devices further includes:

    The operation control module is used to determine whether the smart device is allowed to be operated according to the query result of the smart contract.

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