WO2020010831A1

WO2020010831A1 - Data acquisition method, data acquisition system, terminal, and diagnostic tool

Info

Publication number: WO2020010831A1
Application number: PCT/CN2019/070846
Authority: WO
Inventors: 欧锦荣; 周海涛; 郭子青; 谭筱
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-07-13
Filing date: 2019-01-08
Publication date: 2020-01-16
Also published as: CN108924144B; CN108924144A

Abstract

A data acquisition method. The data acquisition method is applicable to a data acquisition system (100). The data acquisition system (100) comprises a terminal (10), a diagnostic tool (20), and a server (30). The terminal (10) comprises a laser projector (11). The data acquisition method comprises: (011) sending, by means of the terminal (10), first data to the diagnostic tool (20), the first data comprising an encrypted identity identifier of the laser projector (11); (012) sending, by means of the diagnostic tool (20), the first data to the server (30); (013) sending, by means of the server (30), second data to the diagnostic tool (20), the second data comprising first encrypted data, and the first encrypted data comprising calibration data encrypted in a first encrypting manner and matching the identity identifier; (014) determining, by means of the diagnostic tool (20), whether the second data has been tampered with, and sending the second data to the terminal (10) when it is determined that the second data has not been tampered with; and (015) decrypting, by means of the terminal (10), the first encrypted data in a first decrypting manner, so as to obtain the calibration data, the first decrypting manner matching the first encrypting manner.

Description

Data acquisition method, data acquisition system, terminal and diagnostic tool

Priority information

This application claims the priority and rights of a patent application filed with the State Intellectual Property Office of China on July 13, 2018, with a patent application number of 201810771805.4, which is hereby incorporated by reference in its entirety.

Technical field

The present application relates to the field of data interaction technology, and more particularly, to a data acquisition method, a data acquisition system, a terminal, a diagnostic tool, a non-volatile computer-readable storage medium, and a computer device.

Background technique

Existing mobile phones use a laser projector to project a laser pattern on a target object in a target scene, and use an image collector to obtain a laser pattern modulated by the target object, and then calibrate according to the laser projector and image collector stored in the mobile phone Data to calculate the depth of the target object. After the laser projector is replaced, the original calibration data cannot be used by the new laser projector. Therefore, it is necessary to provide a way to obtain the calibration data of the new laser projector.

Summary of the invention

The embodiments of the present application provide a data acquisition method, a data acquisition system, a terminal, a diagnostic tool, a non-volatile computer-readable storage medium, and a computer device of a data acquisition system.

The data acquisition method according to the embodiment of the present application is used in a data acquisition system. The data acquisition system includes a terminal, a diagnostic tool, and a server, and the terminal includes a laser projector. The data acquisition method includes: using the terminal to send first data to the diagnostic tool, the first data includes an encrypted identification code of the laser projector; and using the diagnostic tool to send the first data Sending data to the server; using the server to send second data to the diagnostic tool, the second data includes first encrypted data, and the first encrypted data includes the first encrypted data and the second encrypted data. Calibration data that matches an identification code; uses the diagnostic tool to determine whether the second data has been tampered with, and sends the second data to the terminal when it is determined that the second data has not been tampered with; and The terminal decrypts the first encrypted data in a first decryption manner to obtain the calibration data, and the first decryption manner matches the first encryption manner.

The data acquisition method according to the embodiment of the present application is applied to a terminal. The terminal communicates with the server through a diagnostic tool. The terminal includes a laser projector. The data acquisition method includes: sending first data to the diagnostic tool, so that the diagnostic tool sends the first data to the server, and the first data includes the encrypted data of the laser projector. An identification code; when the diagnostic tool determines that the second data has not been tampered with, the second data sent by the diagnostic tool is received, the second data is sent by the server to the diagnostic tool, and the first The two data include first encrypted data, and the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identification code; and the first encrypted data is decrypted in a first decryption manner. To obtain the calibration data, the first decryption mode matches the first encryption mode.

The data acquisition method according to the embodiment of the present application is used for a diagnostic tool that communicates with a terminal and a server. The terminal includes a laser projector. The data acquisition method includes: receiving first data sent by the terminal and forwarding the first data to the server, the first data including an encrypted identification code of the laser projector; receiving a second data sent by the server Data, the second data includes first encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and determines whether the second data has been tampered with And when determining that the second data has not been tampered with, send the second data to the terminal to decrypt the first encrypted data by using the terminal in a first decryption manner to obtain the calibration data, The first decryption method matches the first encryption method.

The data acquisition system according to the embodiment of the present application includes a terminal, a diagnostic tool, and a server. The terminal includes a laser projector. The terminal is configured to send first data to the diagnostic tool. The first data includes an encrypted data. An identification code of the laser projector; the diagnostic tool is configured to send the first data to the server; the server is configured to send second data to the diagnostic tool, and the second data includes a first Encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identification code; the diagnostic tool is further configured to determine whether the second data has been tampered with, and Sending the second data to the terminal when it is determined that the second data has not been tampered with; the terminal is further configured to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, the The first decryption mode matches the first encryption mode.

The terminal according to the embodiment of the present application communicates with the server through a diagnostic tool. The terminal includes a laser projector. The terminal is configured to send first data to the diagnostic tool, so that the diagnostic tool sends the first data to the server, where the first data includes an identity of the laser projector being encrypted. Identification code; when the diagnostic tool determines that the second data has not been tampered with, receives second data sent by the diagnostic tool, the second data sent by the server to the diagnostic tool, the second data The data includes first encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and the first encrypted data is decrypted in a first decryption manner to The calibration data is obtained, and the first decryption mode matches the first encryption mode.

The electronic device according to the embodiment of the present application includes a diagnostic tool, and the diagnostic tool communicates with the terminal and the server. The terminal includes a laser projector. The diagnostic tool is configured to receive first data sent by the terminal and forward the data to the server, where the first data includes an encrypted identification code of the laser projector; and receive a second data sent by the server. Data, the second data includes first encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and determines whether the second data has been tampered with And when determining that the second data has not been tampered with, send the second data to the terminal to decrypt the first encrypted data by using the terminal in a first decryption manner to obtain the calibration data, The first decryption method matches the first encryption method.

The non-transitory computer-readable storage medium of the computer-executable instructions according to the embodiments of the present application, when the computer-executable instructions are executed by one or more processors, cause the processors to execute any one of the foregoing embodiments. Data acquisition method.

The computer device according to the embodiment of the present application includes a memory and a processor. The memory stores computer-readable instructions. When the instructions are executed by the processor, the processor causes the processor to execute data according to any one of the foregoing embodiments. Get method.

Additional aspects and advantages of the embodiments of the present application will be partially given in the following description, and part of them will become apparent from the following description, or be learned through practice of the embodiments of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic flowchart of a data acquisition method for a data acquisition system according to some embodiments of the present application.

FIG. 2 is a schematic structural diagram of a data acquisition system according to some embodiments of the present application.

FIG. 3 is a schematic structural diagram of a terminal according to some embodiments of the present application.

FIG. 4 is a schematic block diagram of an electronic device according to some embodiments of the present application.

FIG. 5 is a schematic block diagram of a server according to some embodiments of the present application.

6 to 10 are schematic flowcharts of a data acquisition method for a data acquisition system according to some embodiments of the present application.

11 to 14 are schematic flowcharts of a data acquisition method for a terminal according to some embodiments of the present application.

15 to 17 are schematic flowcharts of a data acquisition method for a diagnostic tool according to some embodiments of the present application.

18 is a schematic block diagram of a computer-readable storage medium and a processor according to some embodiments of the present application.

FIG. 19 is a schematic block diagram of a computer device according to some embodiments of the present application.

detailed description

The embodiments of the present application are further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings indicate the same or similar elements or elements having the same or similar functions.

In addition, the embodiments of the present application described below with reference to the drawings are exemplary, and are only used to explain the embodiments of the present application, and should not be construed as limiting the present application. In this application, unless explicitly stated and limited otherwise, the first feature "on" or "down" of the second feature may be the first and second features in direct contact, or the first and second features indirectly through an intermediate medium. contact. Moreover, the first feature is "above", "above", and "above" the second feature. The first feature is directly above or obliquely above the second feature, or it only indicates that the first feature is higher in level than the second feature. The first feature is “below”, “below”, and “below” of the second feature. The first feature may be directly below or obliquely below the second feature, or it may simply indicate that the first feature is less horizontal than the second feature.

The data acquisition method according to the embodiment of the present application is used in a data acquisition system 100. The data acquisition system 100 includes a terminal 10, a diagnostic tool 20, and a server 30. The terminal 10 includes a laser projector 11. The data acquisition method includes: using the terminal 10 to send first data to the diagnostic tool 20, where the first data includes an encrypted identification code of the laser projector 11; using the diagnostic tool 20 to The first data is sent to the server 30; the server 30 is used to send second data to the diagnostic tool 20, the second data includes first encrypted data, and the first encrypted data includes Calibration data encrypted with an encryption method that matches the identification code; using the diagnostic tool 20 to determine whether the second data has been tampered with, and sending the second data when it is determined that the second data has not been tampered with To the terminal 10; and using the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, the first decryption manner matches the first encryption manner.

In some embodiments, the second data further includes second encrypted data, and the data acquisition method further includes: using the server 30 to encrypt the first encrypted data in a second encryption manner to form the second encrypted data. The second encrypted data; and determining whether the second data has been tampered with by using the diagnostic tool 20 includes: determining whether the second encrypted data can be decrypted in a second decryption manner, and the second decryption manner and The second encryption methods match; and if so, it is determined that the second data has not been tampered with.

In some embodiments, the using the server 30 to encrypt the first encrypted data in a second encryption manner to form the second encrypted data includes: generating a first encrypted data for the first encrypted data; A data digest; and encrypting the first data digest with a first private key to form a digital signature.

In some embodiments, the determining whether the second encrypted data can be decrypted in a second decryption manner includes: determining whether the first public key can decrypt the digital signature, and the first public key and the The first private key is paired; if it is, a second data digest for the first encrypted data is generated; whether the second data digest is consistent with the first data digest; and if it is, the first The two decryption modes can decrypt the second encrypted data.

In some embodiments, the second data further includes the identification code, and before the using the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, The data acquisition method further includes: determining whether the identity identification code is consistent with the original identity identification code stored in the terminal 10; and if not, using the terminal 10 to encrypt the first encryption in a first decryption manner The data is decrypted to obtain the calibration data.

In some embodiments, the terminal 10 is formed with a trusted execution environment 1321, and before the using the terminal 10 to send the first data to the diagnostic tool 20, the data acquisition method further includes: using the The terminal 10 encrypts the identification code in a third encryption manner in the trusted execution environment 1321 to obtain the first data; before using the server 30 to send the second data to the diagnostic tool 20, The data acquisition method further includes: decrypting the first data in a third decryption manner to obtain the identity identification code, and the third decryption manner matches the third encryption manner.

In some embodiments, before the using the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, the data acquisition method further includes: using the terminal 10 Determining whether the second data has been tampered with; and if not, using the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data.

The data acquisition method according to the embodiment of the present application is applied to the terminal 10. The terminal 10 communicates with the server 30 through the diagnostic tool 20. The terminal 10 includes a laser projector 11. The data acquisition method includes: sending first data to the diagnostic tool 20, so that the diagnostic tool 20 sends the first data to the server 30, and the first data includes the laser that is encrypted The identification code of the projector 11; when the diagnostic tool 20 determines that the second data has not been tampered with, the second data sent by the diagnostic tool 20 is received, and the second data is sent by the server 30 to all In the diagnostic tool 20, the second data includes first encrypted data, and the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and The first encrypted data is decrypted to obtain the calibration data, and the first decryption mode matches the first encryption mode.

In some implementation manners, the second data further includes the identification code, and the data acquisition method is performed before decrypting the first encrypted data in a first decryption manner to obtain the calibration data. The method further includes: determining whether the identity identification code is consistent with the original identity identification code stored in the terminal 10; and if not, decrypting the first encrypted data in a first decryption manner to obtain the calibration data.

In some embodiments, the terminal 10 is formed with a trusted execution environment 1321, and before the sending of the first data to the diagnostic tool 20, the data acquisition method further includes: in the trusted execution environment 1321 The third encryption method is used to encrypt the identity identification code to obtain the first data.

In some embodiments, before the decrypting the first encrypted data in a first decryption manner to obtain the calibration data, the data acquisition method further includes: determining whether the second data has been tampered with; And if not, the first encrypted data is decrypted in a first decryption manner to obtain the calibration data.

The data acquisition method according to the embodiment of the present application is used for a diagnostic tool 20 that communicates with the terminal 10 and the server 30. The terminal 10 includes a laser projector 11. The data acquisition method includes: receiving first data sent by the terminal 10 and forwarding the first data to the server 30, where the first data includes an encrypted identification code of the laser projector 11; receiving the server 30 The second data sent, the second data including first encrypted data, the first encrypted data including calibration data that is encrypted in a first encryption manner and matches the identity identification code; and determining the second data Whether the data has been tampered with, and when determining that the second data has not been tampered with, the second data is sent to the terminal 10 to use the terminal 10 to decrypt the first encrypted data in a first decryption manner to The calibration data is obtained, and the first decryption mode matches the first encryption mode.

In some embodiments, the second data further includes second encrypted data, and the server 30 is configured to encrypt the first encrypted data in a second encryption manner to form the second encrypted data; the The data acquisition method further includes: judging whether the second encrypted data can be decrypted by a second decryption method, the second decryption method matches the second encryption method; and if so, judging the second data Not tampered with.

In some embodiments, the server 30 is further configured to generate a first data digest for the first encrypted data; and encrypt the first data digest with a first private key to form a digital signature; the Determining whether the second encrypted data can be decrypted in a second decryption manner includes determining whether the first public key can decrypt the digital signature, and the first public key is paired with the first private key; If yes, generate a second data digest for the first encrypted data; determine whether the second data digest is consistent with the first data digest; and if so, determine whether the second decryption can be performed on the second Encrypted data is decrypted.

The data acquisition system 100 according to the embodiment of the present application includes a terminal 10, a diagnostic tool 20, and a server 30. The terminal 10 includes a laser projector 11. The terminal 10 is configured to send first data to the diagnostic tool 20. The first data includes an encrypted identification code of the laser projector 11; the diagnostic tool 20 is configured to send the first data to the server 30; and the server 30 is configured to send second data to In the diagnostic tool 20, the second data includes first encrypted data, and the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identification code; the diagnostic tool 20 further Configured to determine whether the second data has been tampered with, and send the second data to the terminal 10 when it is determined that the second data has not been tampered with; the terminal 10 is further configured to perform The first encrypted data is decrypted to obtain the calibration data, and the first decryption method matches the first encryption method.

In some embodiments, the second data further includes second encrypted data, and the server 30 is further configured to encrypt the first encrypted data in a second encryption manner to form the second encrypted data; The diagnostic tool 20 is further configured to determine whether the second encrypted data can be decrypted in a second decryption mode, and the second decryption mode matches the second encryption mode; and if so, determine the second encrypted data. The data has not been tampered with.

In some implementations, the server 30 is further configured to: generate a first data digest for the first encrypted data; and encrypt the first data digest with a first private key to form a digital signature.

In some embodiments, the diagnostic tool 20 is further configured to: determine whether a first public key can decrypt the digital signature, and the first public key is paired with the first private key; if yes, generate the A second data digest for the first encrypted data; determining whether the second data digest is consistent with the first data digest; and if so, determining whether the second encrypted data can be decrypted in a second decryption manner .

In some embodiments, the second data further includes the identity identification code, and the terminal 10 is further configured to determine whether the identity identification code is consistent with an original identity identification code stored in the terminal 10; and If not, the terminal 10 is used to decrypt the first encrypted data in a first decryption manner to obtain the calibration data.

In some implementation manners, the terminal 10 is formed with a trusted execution environment 1321, and the terminal 10 is further configured to encrypt the identity identification code in a third encryption manner in the trusted execution environment 1321 to obtain the The first data; the server 30 is further configured to decrypt the first data in a third decryption manner to obtain the identification code, and the third decryption manner matches the third encryption manner.

In some embodiments, the terminal 10 is further configured to: determine whether the second data has been tampered with; and if not, decrypt the first encrypted data in a first decryption manner to obtain the calibration data. .

The terminal 10 according to the embodiment of the present application communicates with the server 30 through the diagnostic tool 20. The terminal 10 includes a laser projector 11. The terminal 10 is configured to send first data to the diagnostic tool 20, so that the diagnostic tool 20 sends the first data to the server 30, where the first data includes the encrypted laser light. The identification code of the projector 11; when the diagnostic tool 20 determines that the second data has not been tampered with, the second data sent by the diagnostic tool 20 is received, and the second data is sent by the server 30 to all In the diagnostic tool 20, the second data includes first encrypted data, and the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and The first encrypted data is decrypted to obtain the calibration data, and the first decryption method matches the first encryption method.

The electronic device according to the embodiment of the present application includes a diagnostic tool 20 that communicates with the terminal 10 and the server 30. The terminal 10 includes a laser projector 11. The diagnostic tool 20 is configured to: receive first data sent by the terminal 10 and forward the first data to the server 30, where the first data includes an encrypted identification code of the laser projector 11; and receive the server 30 second data sent, the second data includes first encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identification code; and determines the first Whether the two data have been tampered with, and when determining that the second data has not been tampered with, send the second data to the terminal 10 to use the terminal 10 to decrypt the first encrypted data in a first decryption manner To obtain the calibration data, the first decryption mode matches the first encryption mode.

The non-volatile computer-readable storage medium 300 including computer-executable instructions 400 according to the embodiment of the present application, when the computer-executable instructions 400 are executed by one or more processors 500, causes the processor 500 to execute the foregoing. The data acquisition method according to any one of the embodiments.

The computer device 1000 according to the embodiment of the present application includes a memory 600 and a processor 500. The memory 600 stores computer-readable instructions 601. When the instructions 601 are executed by the processor 500, the processor 500 executes the foregoing. The data acquisition method according to any one of the embodiments.

Referring to FIG. 1 to FIG. 3, the present application provides a data acquisition method for a data acquisition system 100. The data acquisition system 100 includes a terminal 10, a diagnostic tool 20, and a server 30. The terminal 10 includes a laser projector 11. The diagnostic tool 20 is mounted on the electronic device 200. Data acquisition methods include:

011: Use the terminal 10 to send the first data to the diagnostic tool 20, where the first data includes the encrypted identification code of the laser projector 11;

012. Use the diagnostic tool 20 to send the first data to the server 30.

013. Use the server 30 to send the second data to the diagnostic tool 20, the second data includes the first encrypted data, and the first encrypted data includes the calibration data that is encrypted in the first encryption mode and matches the identification code;

014. Use the diagnostic tool 20 to determine whether the second data has been tampered with, and send the second data to the terminal 10 when it is determined that the second data has not been tampered with; and

015. Use the terminal 10 to decrypt the first encrypted data in the first decryption mode to obtain the calibration data, and the first decryption mode matches the first encryption mode.

Please refer to FIG. 1 to FIG. 5, the present application provides a data acquisition system 100. The data acquisition system 100 includes a terminal 10, a diagnostic tool 20, and a server 30. The terminal 10 includes a laser projector 11. among them:

The terminal 10 is configured to send first data to the diagnostic tool 20, where the first data includes an identification code of the encrypted laser projector 11;

The diagnostic tool 20 is configured to send the first data to the server 30;

The server 30 is configured to send second data to the diagnostic tool 20, where the second data includes first encrypted data, and the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches an identification code;

The diagnostic tool 20 is further configured to determine whether the second data has been tampered with, and send the second data to the terminal 10 when it is determined that the second data has not been tampered with;

The terminal 10 is further configured to decrypt the first encrypted data in a first decryption manner to obtain calibration data, and the first decryption manner matches the first encryption manner.

That is, the terminal 10 is used to implement

steps

011 and 015, the diagnostic tool 20 is used to implement

steps

012 and 014, and the server 30 is used to implement steps 013.

Specifically, the terminal 10 may be a smart phone, a tablet computer, a notebook computer, a wearable device (a smart watch, a smart bracelet, a smart glasses, a smart helmet, etc.) and the like. The electronic device 200 may be a smart phone, a tablet computer, a notebook computer, a desktop computer, a wearable device (smart watch, smart bracelet, smart glasses, smart helmet, etc.), and the like.

The diagnostic tool 20 is a client installed on the electronic device 200. For example, when the electronic device 200 is a mobile phone, the diagnostic tool 20 is an application installed on a mobile phone, and when the electronic device 200 is a desktop computer, the diagnostic tool 20 is installed Application software on a desktop computer. The terminal 10 communicates with the server 30 through the diagnostic tool 20.

The server 30 includes a processing chip 31 and one or more storage media 32. One or more storage media 32 are used to store one or more computer-executable instructions 33 and data. The processing chip 31 is used to process and calculate all data on the server 30, and read computer-executable instructions 33 stored in the storage medium 32, and generate corresponding operation control signals. For example, the processing chip 31 may be used to implement step 013. .

The terminal 10 includes a laser projector 11, an infrared camera 12, and a processor 13. The processor 13 is connected to the laser projector 11, and the processor 13 is connected to the infrared camera 12. The processor 13 may be configured to control the laser projector 11 to project a laser pattern on a target object. The processor 13 may also be used to control the infrared camera 12 to collect a laser pattern modulated by a target object. The processor 13 further processes the collected laser pattern to obtain depth information of the target object. However, the processor 13 must calculate the depth information of the target object according to the calibration data of the laser projector 11 and the infrared camera 12 stored on the terminal 10. Therefore, when the terminal 10 replaces the laser projector 11, the calibration data corresponding to the laser projector 11 must be burned before the laser projector 11 can be used normally.

In the embodiment of the present application, the terminal 10 needs to obtain the calibration data of the laser projector 11 currently installed on the terminal 10 from the server 30. Specifically, each laser projector 11 corresponds to a unique identification code (Chip ID). Before leaving the factory, the identification code of each laser projector 11 is stored in the database of the server 30. The terminal 10 first obtains the identity identification code of the current laser projector 11, and then generates a random number including the identity identification code according to the identity identification code, and encrypts the random number to form first data. The terminal 10 sends the first data to the diagnostic tool 20, and then the diagnostic tool 20 sends the first data to the server 30. After receiving the first data, the server 30 searches the database for calibration data that matches the identification code, and encrypts the calibration data in a first encryption manner to form the first encrypted data. The server 30 sends the second data including the first encrypted data and the identification code to the diagnostic tool 20. After receiving the second data, the diagnostic tool 20 needs to verify whether the second data has been tampered with. When it is determined that the second data has been tampered with, the diagnostic tool 20 sends a request for reacquiring the second data to the server 30 until it is determined that the acquired second data has not been tampered with. When determining that the second data has not been tampered with, the diagnostic tool 20 sends the second data including the first encrypted data and the identification code to the terminal 10. After receiving the second data, the terminal 10 decrypts the first encrypted data in a first decryption manner to obtain the calibration data.

The first decryption method matches the first encryption method. In one embodiment, the first encryption method includes a symmetric encryption algorithm, for example, a Data Encryption Standard (DES) algorithm, a Triple Data Encryption Algorithm (TDEA) algorithm, and an Advanced Encryption Standard , AES) algorithm and so on. Taking the DES algorithm as an example, the server 30 uses the DES algorithm to randomly generate an encryption key, and uses this encryption key to encrypt the calibration data stored in the server 30 to form the first encrypted data. The server 10 then sends the encryption key together with the second data to the diagnostic tool 20, and then sends the diagnostic tool 20 to the terminal 10. In this way, the terminal 10 can use the encryption key generated by the server 10 to decrypt the first encrypted data. Thereby, calibration data is obtained. In another embodiment, the first encryption method further includes an asymmetric encryption algorithm, such as an RSA encryption algorithm, an ElGamal algorithm, and an Elliptic Curve Cryptography (ECC). Taking the RSA encryption algorithm as an example, the terminal 10 uses the RSA encryption algorithm to generate a pair of RSA keys, one of which is a private key, the private key is stored by the server 30, and the other is a public key, and the public key can be sent to the terminal 10. The server 30 uses the private key to encrypt the calibration data stored in the server 30, and the terminal 10 uses the public key to decrypt the calibration data. This is to ensure the confidentiality of the calibration data.

In the data acquisition method and the data acquisition system 100 according to the embodiment of the present application, first, the terminal 10 is used to send the first data including the identification code of the laser projector 11 to the server 30; then, the server 30 is used to find and identify the identity according to the identification code. The calibration data matching the identification code is encrypted with the first encryption method to generate the first encrypted data. Then, the server 30 sends the second data including the first encrypted data to the diagnostic tool 20; The diagnostic tool 20 determines whether the second data has been tampered with, and uses the diagnostic tool 20 to send the second data to the terminal 10 when the second data has not been tampered with; finally, the terminal 10 is used to decrypt the first encrypted data in a first decryption manner to obtain Calibration data. In this way, the terminal 10 can obtain complete and accurate calibration data of the laser projector 11 from the server 30.

Referring to FIG. 6, in some embodiments, the second data further includes second encrypted data. The data acquisition method further includes steps:

016. Use the server 30 to encrypt the first encrypted data in a second encryption manner to form the second encrypted data.

Step 014 uses a diagnostic tool to determine whether the second data has been tampered with, including the following sub-steps:

0141: Determine whether the second encrypted data can be decrypted by the second decryption method, and the second decryption method matches the second encryption method; and

0142. If yes, determine that the second data has not been tampered with.

Please refer to FIG. 2 and FIG. 6. In some embodiments, the second data further includes second encrypted data. The server 30 is further configured to encrypt the first encrypted data in a second encryption manner to form the second encrypted data. The diagnostic tool 20 is further configured to determine whether the second encrypted data can be decrypted with the second decryption method, and the second decryption method matches the second encryption method; and if so, it is determined that the second data has not been tampered with. That is, the server 30 is further configured to implement step 016, and the diagnostic tool 20 is further configured to implement

steps

0141 and 0142.

Specifically, before sending the second data to the diagnostic tool 20 using the server 30 in step 013, the server 30 also encrypts the first encrypted data in a second encryption manner to form the second encrypted data. Therefore, the second data includes the first encrypted data, the identification code, and the second encrypted data. After receiving the second data including the first encrypted data, the identification code, and the second encrypted data, the diagnostic tool 20 determines whether the second encrypted data can be decrypted in the second decryption manner. The two encryption methods match. When it is determined that the second decryption method can decrypt the second encrypted data, the diagnostic tool 20 determines that the second data has not been tampered with, and sends the second data to the terminal 10. When it is determined that the second decryption method cannot decrypt the second encrypted data, the diagnostic tool 20 determines that the second data has been tampered with. At this time, the diagnostic tool 20 stops sending the second data to the terminal 10 and sends a request for acquiring the second data to the server 30 until the diagnostic tool 20 determines that the second data has not been tampered with.

Referring to FIG. 7, in some implementations, in step 016, the server 30 is used to encrypt the first encrypted data in a second encryption manner to form the second encrypted data, and further includes the following sub-steps:

0161: generate a first data digest for the first encrypted data; and

0162: Encrypt the first data digest with the first private key to form a digital signature.

Please refer to FIG. 2 and FIG. 7. In some embodiments, the server 30 is further configured to generate a first data digest for the first encrypted data; and encrypt the first data digest with a first private key to form a digital signature. . That is, the server 30 is further configured to implement sub-steps 0161 and 0162.

Specifically, the server 30 may use a digest algorithm (such as a Hash function) to generate a first data digest of the first encrypted data, and then encrypt the first data digest with a first private key to form a digital signature. The first private key is stored on the server 30 only. Therefore, the second encrypted data is a digital signature of the first encrypted data. In the embodiment of the present application, the digital signature can be used to judge the integrity of the first encrypted data, that is, to determine that the calibration data received by the sink (diagnostic tool 20 and terminal 10) must be information sent by the source (server 30) There is absolutely no change in the middle.

Please continue to refer to FIG. 7. In some embodiments, in step 0141, it is determined whether the second encrypted data can be decrypted in the second decryption mode, including the following sub-steps:

01411: Determine whether the first public key can decrypt the digital signature, and the first public key and the first private key are paired;

01412, if yes, generate a second data digest for the first encrypted data;

01413: Determine whether the second data digest is consistent with the first data digest; and

01414, if yes, it is determined that the second encrypted data can be decrypted in the second decryption mode.

Please refer to FIG. 2 and FIG. 7. In some embodiments, the diagnostic tool 20 is further configured to determine whether the first public key can decrypt the digital signature, and the first public key and the first private key are paired; if yes, generate the A second data digest for the first encrypted data; determining whether the second data digest is consistent with the first data digest; and, if so, determining whether the second encrypted data can be decrypted in a second decryption manner. That is, the diagnostic tool 20 is also used to implement sub-steps 01411, 01412, 01413, and 01414.

Specifically, after receiving the digital signature, the diagnostic tool 20 determines whether the first public key can decrypt the digital signature. The first public key is paired with the first private key, the server 30 stores the first private key, and the diagnostic tool 20 stores the first public key. When it is judged that the first public key cannot decrypt the digital signature, it indicates that the digital signature has been tampered with, for example, the digital signature was forged by another server 30. Therefore, if the diagnostic tool 20 determines that the source of the second data is not trusted, it will not send the second data to the terminal 10, thereby ensuring the integrity of the second data. When determining that the first public key can decrypt the digital signature, the diagnostic tool 20 first uses a digest algorithm (such as a Hash function) to generate a second data digest for the first encrypted data, and then determines whether the second data digest is consistent with the first data digest. . When it is judged that the second data digest is consistent with the first data digest, it is judged that the second encrypted data can be decrypted in the second decryption manner, thereby determining that the second encrypted data has not been tampered with, and ensuring the integrity of the second data. When it is judged that the second data digest is inconsistent with the first data digest, it is judged that the second encrypted data cannot be decrypted in the second decryption manner, thereby determining that the second encrypted data has been tampered with, and the diagnostic tool 20 will not send the second data to Terminal 10.

Referring to FIG. 8, in some embodiments, the second data further includes an identification code. Before step 015 uses the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, the data acquisition method further includes: The following steps:

0151. Determine whether the identity identification code is consistent with the original identity identification code stored in the terminal 10; and

0152. If not, use the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data.

Referring to FIG. 2 and FIG. 8, in some embodiments, the second data further includes an identification code, and the terminal 10 is further configured to determine whether the identification code is consistent with the original identification code stored in the terminal 10; and if not, Then, the terminal 10 is used to decrypt the first encrypted data in a first decryption manner to obtain the calibration data. That is, the terminal 10 is further configured to perform

steps

0151 and 0152.

Specifically, the terminal 10 stores an identification code of the original laser projector 11. After receiving the second data including the identification code of the current laser projector 11, the terminal 10 needs to determine whether the current identification code is consistent with the original identification code. When judging that the current identity identification code is consistent with the original identity identification code, the terminal 10 determines that the current laser projector 11 is the original laser projector 11, that is, the terminal 10 has not replaced the new laser projector 11. Therefore, the terminal 10 does not need to decrypt the first encrypted data or store the first encrypted data. When judging that the current identity identification code is inconsistent with the original identity identification code, the terminal 10 determines that the current laser projector 11 is not the original laser projector 11, that is, the terminal 10 has replaced the new laser projector 11. Therefore, the terminal 10 decrypts the first encrypted data in a first decryption manner to obtain the calibration data.

Please refer to FIG. 3 and FIG. 9. In some embodiments, the terminal 10 is formed with a Trusted Execution Environment (TEE) 1321. In step 011, before the terminal 10 sends the first data to the diagnostic tool 20, the data is acquired. The method also includes steps:

017. The terminal 10 is used to encrypt the identity identification code in the trusted execution environment 1321 in a third encryption manner to obtain the first data. Before the server 30 sends the second data to the diagnostic tool 20 in step 013, the data acquisition method further includes the following steps:

018: Decrypt the first data in a third decryption manner to obtain an identification code, and the third decryption manner matches the third encryption manner.

Referring to FIG. 3 and FIG. 9, in some embodiments, the terminal 10 is formed with a trusted execution environment 1321. The terminal 10 is further configured to encrypt the identity identification code in a third encryption manner in the trusted execution environment 1321 to obtain the first data. The server 30 is further configured to decrypt the first data in a third decryption manner to obtain an identification code, and the third decryption manner matches the third encryption manner. That is, the terminal 10 is further configured to perform step 017, and the server 30 is further configured to perform step 018.

Specifically, the processor 13 includes a microprocessor 131 and an Application Processor (AP) 132. The microprocessor 131 may be a processing chip, and the microprocessor 131 is connected to the application processor 132. Specifically, the application processor 132 may be used to reset the microprocessor 131, wake the microprocessor 131, and debug Microprocessor 131 and the like. The application processor 132 includes a trusted execution environment 1321 and an untrusted execution environment 1322. The microprocessor 131 is connected to the trusted execution environment 1322 of the application processor 132 through a mobile industry processor interface, so as to directly transmit data in the microprocessor 131 to the trusted execution environment 1322 for storage. The code and memory area in the trusted execution environment 1322 are controlled by the access control unit, and cannot be accessed by programs in the untrusted execution environment 1322. The identification code of the laser projector 11 is stored in the trusted execution environment 1322. In this way, the identification code of the laser projector 11 is not easy to be tampered with and misappropriated, and the security of the information of the terminal 10 is high.

The terminal 10 encrypts the identity identification code in the trusted execution environment 1321 to ensure the confidentiality of the identity identification code. In one example, the third encryption method and the third decryption method may be asymmetric encryption algorithms. For example, the server 30 uses the asymmetric encryption algorithm to generate a matching second public key and a second private key, the server 30 stores the second private key, and the terminal 10 stores the second public key. The terminal 10 uses the second public key to encrypt the identification code to obtain the first data. Therefore, when the server 30 receives the first data, it can use the second private key to decrypt the first data, thereby obtaining the identity identification code. In another example, the third encryption method and the third decryption method may also be a symmetric encryption algorithm. Since the first decryption method and the first encryption method using the symmetric encryption algorithm have been discussed in the foregoing embodiment, the third encryption method and the third decryption method using the symmetric encryption algorithm are not described herein again.

Referring to FIG. 10, in some embodiments, before step 015 uses the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, the data acquisition method further includes steps:

0153: Use the terminal 10 to determine whether the second data has been tampered with; and

Referring to 2 and FIG. 10, in some embodiments, the terminal 10 is further configured to determine whether the second data has been tampered with; and if not, the first encrypted data is decrypted in a first decryption manner to obtain the calibration data. That is to say, the terminal 10 is further configured to perform

steps

0153 and 0152.

In the embodiment of the present application, the method for judging whether the second data is tampered with the terminal 10 is consistent with the method for judging whether the second data is tampered with the diagnostic tool in step 014, that is, judging whether the second encryption can be encrypted by the second decryption method The data is decrypted. Specifically, after receiving the digital signature, the terminal 10 determines whether the digital signature formed by the server 30 can be decrypted by using the first public key. The first public key is paired with the first private key, the server 30 stores the first private key, and the diagnostic tool 20 and the terminal 10 both store the first public key. When determining that the first public key cannot decrypt the digital signature, the terminal 10 determines that the digital signature has been tampered with. Therefore, if the terminal 10 judges that the source of the second data is untrusted, it does not store the second data. When determining that the first public key can decrypt the digital signature, the terminal 10 first generates a third data digest for the first encrypted data by using a digest algorithm (such as a Hash function), and then determines whether the third data digest is consistent with the first data digest. When it is judged that the third data digest is consistent with the first data digest, it is judged that the second encrypted data can be decrypted in the second decryption manner, thereby determining that the second encrypted data has not been tampered with, and ensuring the integrity of the second data, that is, The integrity of the first encrypted data is ensured. In this way, the terminal 10 can perform the first decryption method in step 05 to decrypt the first encrypted data to obtain the calibration data. When it is judged that the third data digest is inconsistent with the first data digest, it is judged that the second encrypted data cannot be decrypted in the second decryption manner, so as to determine that the second encrypted data has been tampered with, the terminal 10 will not perform step 015.

Referring to FIG. 11, the present application provides a data acquisition method for the terminal 10. The terminal 10 communicates with the server 30 through the diagnostic tool 20. The terminal 10 includes a laser projector 11. Data acquisition methods include:

021. Send the first data to the diagnostic tool 20, so that the diagnostic tool 20 sends the first data to the server 30. The first data includes the encrypted identification code of the laser projector 11.

022. When the diagnostic tool 20 determines that the second data has not been tampered with, the second data sent by the diagnostic tool 20 is received. The second data is sent by the server 30 to the diagnostic tool 20, and the second data includes the first encrypted data and the first encrypted data. Including calibration data matched with an identification code encrypted in a first encryption manner; and

023: Decrypt the first encrypted data in the first decryption mode to obtain the calibration data. The first decryption mode matches the first encryption mode.

Please refer to FIG. 2 and FIG. 3. In some embodiments, the present application provides a terminal 10. The terminal 10 communicates with the server 30 through the diagnostic tool 20. The terminal 10 is configured to send the first data to the diagnostic tool 20, so that the diagnostic tool 20 sends the first data to the server 30. The first data includes the encrypted identification code of the laser projector 11; When the data has not been tampered with, the second data sent by the diagnostic tool 20 is received. The second data is sent by the server 30 to the diagnostic tool 20. The second data includes the first encrypted data, and the first encrypted data includes the first encrypted data The calibration data matching the identity identification code; and, the first encrypted data is decrypted in a first decryption manner to obtain the calibration data, and the first decryption manner matches the first encryption manner. That is, the terminal 10 may be used to implement

steps

021, 022, and 023.

In the data acquisition method for the terminal 10 according to the embodiment of the present application, the terminal 10 sends the first data including the identification code of the laser projector 11 to the server 30, so that the server 30 can find a matching calibration according to the identification code And receive the second data including the first encrypted data, and then decrypt the first encrypted data in a first decryption manner to obtain the calibration data. In this way, the terminal 10 can obtain accurate and complete calibration data of the laser projector 11 from the server 30.

Referring to FIG. 12, in some embodiments, the terminal 10 is formed with a trusted execution environment 1321. Before sending the first data to the diagnostic tool 20 in step 021, the data acquisition method further includes the following steps:

024. In the trusted execution environment 1321, the identity identification code is encrypted in a third encryption manner to obtain the first data.

Referring to FIG. 3 and FIG. 12, in some embodiments, the terminal 10 is further configured to implement step 024.

Referring to FIG. 13, in some embodiments, the second data further includes an identification code. Before the first encrypted data is decrypted in step 023 to obtain the calibration data, the data acquisition method further includes the following steps:

025: Determine whether the identity identification code is consistent with the original identity identification code stored in the terminal 10; and

023. If not, the first encrypted data is decrypted in a first decryption manner to obtain calibration data.

Please refer to FIG. 3 and FIG. 13. In some embodiments, the second data further includes an identification code. The terminal 10 is further configured to implement

steps

025 and 023.

Referring to FIG. 14, in some embodiments, before step 023 decrypts the first encrypted data in a first decryption manner to obtain calibration data, the data acquisition method further includes the following steps:

026: Determine whether the second data has been tampered with; and

Referring to FIG. 3 and FIG. 14, in some embodiments, the terminal 10 is further configured to implement

steps

026 and 023.

Referring to FIG. 15, the present application provides a data acquisition method for a diagnostic tool 20. The diagnostic tool 20 communicates with the terminal 10 and the server 30. The terminal 10 includes a laser projector 11. The data acquisition method includes the following steps:

031. Receive the first data sent by the terminal 10 and forward it to the server 30. The first data includes the encrypted identification code of the laser projector 11.

032. Receive second data sent by the server 30. The second data includes first encrypted data, and the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches an identification code; and

033. Determine whether the second data has been tampered with, and send the second data to the terminal 10 when it is determined that the second data has not been tampered with, so as to use the terminal 10 to decrypt the first encrypted data in a first decryption manner to obtain the calibration data. A decryption method matches the first encryption method.

Please refer to FIG. 2 and FIG. 4, the present application provides an electronic device 200. The electronic device 200 includes a diagnostic tool 20 that communicates with the terminal 10 and the server 30. The diagnostic tool 30 is configured to receive the first data sent by the terminal 10 and forward the data to the server 30. The first data includes the encrypted identification code of the laser projector 11. The second data sent by the server 30 includes the first data. Encrypted data, the first encrypted data includes calibration data that is encrypted with the first encryption method and matches the identification code; and, determines whether the second data has been tampered with, and sends the second data when it is determined that the second data has not been tampered with To the terminal 10, the terminal 10 is used to decrypt the first encrypted data in the first decryption mode to obtain the calibration data, and the first decryption mode matches the first encryption mode.

In the data acquisition method for the electronic device 200 according to the embodiment of the present application, the diagnostic tool 20 serves as a data transmission channel and a data determination channel between the terminal 10 and the server 30, and sends the second data to the second data when it is determined that the second data has not been tampered with. The terminal 10 ensures that the terminal 10 can obtain accurate and complete calibration data of the laser projector 11 from the server 30.

Referring to FIG. 16, in some embodiments, the second data further includes second encrypted data. The server 30 is configured to encrypt the first encrypted data in a second encryption manner to form the second encrypted data. The data acquisition method also includes the following steps:

034. Determine whether the second encrypted data can be decrypted by the second decryption method, and the second decryption method matches the second encryption method; and

035. If yes, determine that the second data has not been tampered with.

Please refer to FIG. 2 and FIG. 4. In some embodiments, the diagnostic tool 30 is further configured to perform

steps

034 and 035.

Referring to FIG. 17, in some embodiments, the server 30 is further configured to generate a first data digest for the first encrypted data; and encrypt the first data digest with a first private key to form a digital signature. In step 034, it is determined whether the second encrypted data can be decrypted in the second decryption mode, including the following steps:

0341: Determine whether the first public key can decrypt the digital signature, and the first public key and the first private key are paired;

0342, if yes, generate a second data digest for the first encrypted data;

0343: Determine whether the second data digest is consistent with the first data digest; and

0344. If yes, determine that the second encrypted data can be decrypted in the second decryption mode.

steps

0341, 0342, 0343, and 0344.

Referring to FIG. 18, the present application further provides a non-volatile computer-readable storage medium 300. One or more non-volatile computer-readable storage media 300 store computer-executable instructions 400. When the computer-executable instructions 400 are executed by one or more processors 500, the processor 500 is caused to execute the data acquisition method for the data acquisition system 100 according to any one of the foregoing embodiments. At this time, the processor 500 may include a processor 13 in the terminal 10 and a processing circuit in the electronic device 200.

For example, when the computer-executable instructions 400 are executed by the processor 500, the processor 500 performs the following steps:

012. Use the diagnostic tool 20 to send the first data to the server 30.

As another example, when the computer-executable instructions 400 are executed by the processor 500, the processor 500 causes the processor 500 to perform the following steps:

Referring to FIG. 19, the present application further provides a computer device 1000. The computer device 1000 includes a memory 600 and a processor 500. Computer readable instructions 601 are stored in the memory 600. When the computer-readable instructions 601 are executed by the processor 500, the processor 500 is caused to execute the data acquisition method for the data acquisition system 100 according to any one of the foregoing embodiments. At this time, the processor 500 may include a processor 13 in the terminal 10 and a processing circuit in the electronic device 200.

For example, when the computer-readable instruction 601 is executed by the processor 500, the processor 500 causes the processor 500 to perform the following steps:

012. Use the diagnostic tool 20 to send the first data to the server 30.

As another example, when the computer-readable instruction 601 is executed by the processor 500, the processor 500 causes the processor 500 to perform the following steps:

Please continue to refer to FIG. 19, the present application further provides a computer device 1000. The computer device 1000 includes a memory 600 and a processor 500. Computer readable instructions 601 are stored in the memory 600. When the computer-readable instruction 601 is executed by the processor 500, the processor 500 is caused to execute the data acquisition method for the data acquisition system 100 according to any one of the foregoing embodiments. At this time, the processor 500 is the processor 13 in the terminal 10.

026: Determine whether the second data has been tampered with; and

Please continue to refer to FIG. 19, the present application further provides a computer device 1000. The computer device 1000 includes a memory 600 and a processor 500. Computer readable instructions 601 are stored in the memory 600. When the computer-readable instruction 601 is executed by the processor 500, the processor 500 is caused to execute the data acquisition method for the data acquisition system 100 according to any one of the foregoing embodiments. At this time, the processor 500 is a processing circuit in the electronic device 200.

035. If yes, determine that the second data has not been tampered with.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, or “some examples” and the like means specific features described in conjunction with the embodiments or examples , Structure, materials, or features are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without any contradiction, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification.

In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, etc., unless it is specifically and specifically defined otherwise.

Any process or method description in a flowchart or otherwise described herein can be understood as representing a module, fragment, or portion of code that includes one or more executable instructions for implementing a particular logical function or step of a process And, the scope of the preferred embodiments of the present application includes additional implementations, in which the functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present application pertain.

The logic and / or steps represented in the flowchart or otherwise described herein, for example, a sequenced list of executable instructions that can be considered to implement a logical function, can be embodied in any computer-readable medium, For instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from and execute instructions) Or equipment. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) with one or more wirings, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, because, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or other suitable Processing to obtain the program electronically and then store it in computer memory.

It should be understood that each part of the application may be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods may be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it may be implemented using any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gate circuits, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

A person of ordinary skill in the art can understand that all or part of the steps carried by the methods in the foregoing embodiments may be implemented by a program instructing related hardware. The program may be stored in a computer-readable storage medium. The program is When executed, one or a combination of the steps of the method embodiment is included.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist separately physically, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or software functional modules. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

The aforementioned storage medium may be a read-only memory, a magnetic disk, or an optical disk. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application. Those skilled in the art can interpret the above within the scope of the present application. Embodiments are subject to change, modification, substitution, and modification.

Claims

A data acquisition method for a data acquisition system. The data acquisition system includes a terminal, a diagnostic tool, and a server. The terminal includes a laser projector. The data acquisition method includes:

Using the terminal to send first data to the diagnostic tool, where the first data includes an encrypted identification code of the laser projector;

Sending the first data to the server by using the diagnostic tool;

Using the server to send second data to the diagnostic tool, the second data includes first encrypted data, and the first encrypted data includes a calibration that matches the identity identification code encrypted by the first encryption data;

Using the diagnostic tool to determine whether the second data has been tampered with, and sending the second data to the terminal when determining that the second data has not been tampered with; and

The terminal is used to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, and the first decryption manner matches the first encryption manner.
The data acquisition method according to claim 1, wherein the second data further comprises a second encrypted data, and the data acquisition method further comprises: using the server to encrypt the first encrypted data with a second encryption Way encryption to form the second encrypted data;

The use of the diagnostic tool to determine whether the second data has been tampered with includes: determining whether the second encrypted data can be decrypted by a second decryption method, the second decryption method and the second encryption method Match; and

If yes, it is determined that the second data has not been tampered with.
The data acquisition method according to claim 2, wherein the using the server to encrypt the first encrypted data in a second encryption manner to form the second encrypted data comprises:

Generating a first data digest for the first encrypted data; and

The first data digest is encrypted with a first private key to form a digital signature.
The data acquisition method according to claim 3, wherein the determining whether the second encrypted data can be decrypted in a second decryption manner comprises:

Determining whether a first public key can decrypt the digital signature, and the first public key is paired with the first private key;

If yes, generating a second data digest for the first encrypted data;

Determining whether the second data digest is consistent with the first data digest; and

If yes, it is determined that the second encrypted data can be decrypted in a second decryption manner.
The data acquisition method according to claim 1, wherein the second data further comprises the identification code, and the first encrypted data is decrypted in a first decryption manner by the terminal to Before obtaining the calibration data, the data acquisition method further includes:

Determining whether the identity identification code is consistent with the original identity identification code stored in the terminal; and

If not, use the terminal to decrypt the first encrypted data in a first decryption manner to obtain the calibration data.
The data acquisition method according to claim 1, wherein the terminal forms a trusted execution environment, and before the using the terminal to send the first data to the diagnostic tool, the data acquisition method further comprises Using the terminal to encrypt the identity identification code in a third encryption manner in the trusted execution environment to obtain the first data;

Before the using the server to send second data to the diagnostic tool, the data acquisition method further includes:

The first data is decrypted in a third decryption manner to obtain the identification code, and the third decryption manner matches the third encryption manner.
The data acquisition method according to claim 1, wherein before the using the terminal to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, the data acquisition method further comprises: include:

Using the terminal to determine whether the second data has been tampered with; and

If not, use the terminal to decrypt the first encrypted data in a first decryption manner to obtain the calibration data.
A data acquisition method for a terminal, the terminal communicates with a server through a diagnostic tool, the terminal includes a laser projector, and the data acquisition method includes:

Sending first data to the diagnostic tool, so that the diagnostic tool sends the first data to the server, the first data includes an encrypted identification code of the laser projector;

When the diagnostic tool determines that the second data has not been tampered with, the second data sent by the diagnostic tool is received, the second data is sent by the server to the diagnostic tool, and the second data includes a first Encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and

The first encrypted data is decrypted in a first decryption manner to obtain the calibration data, and the first decryption manner matches the first encryption manner.
The data acquisition method according to claim 8, wherein the second data further comprises the identification code, and the first encrypted data is decrypted in the first decryption manner to obtain the calibration Before data, the data acquisition method further includes:

Determining whether the identity identification code is consistent with the original identity identification code stored in the terminal; and

If not, the first encrypted data is decrypted in a first decryption manner to obtain the calibration data.
The data acquisition method according to claim 8, wherein the terminal forms a trusted execution environment, and before the sending the first data to the diagnostic tool, the data acquisition method further comprises: The trusted execution environment encrypts the identity identification code in a third encryption manner to obtain the first data.
The data acquisition method according to claim 8, wherein before the decrypting the first encrypted data in a first decryption manner to obtain the calibration data, the data acquisition method further comprises:

Determining whether the second data has been tampered with; and

If not, the first encrypted data is decrypted in a first decryption manner to obtain the calibration data.
A data acquisition method is used for a diagnostic tool, the diagnostic tool communicates with a terminal and a server, the terminal includes a laser projector, and the data acquisition method includes:

Receiving the first data sent by the terminal and forwarding it to the server, where the first data includes an encrypted identification code of the laser projector;

Receiving second data sent by the server, the second data including first encrypted data, the first encrypted data including calibration data that is encrypted in a first encryption manner and matches the identity identification code; and

Determine whether the second data has been tampered with, and send the second data to the terminal when it is determined that the second data has not been tampered with, so as to use the terminal to decrypt the first encrypted data in a first decryption manner Decryption is performed to obtain the calibration data, and the first decryption method matches the first encryption method.
The data acquisition method according to claim 12, wherein the second data further comprises second encrypted data, and the server is configured to encrypt the first encrypted data in a second encryption manner to form the second encrypted data. Second encrypted data; the data acquisition method further includes:

Judging whether the second encrypted data can be decrypted by a second decryption method that matches the second encryption method; and

If yes, it is determined that the second data has not been tampered with.
The data acquisition method according to claim 13, wherein the server is further configured to generate a first data digest for the first encrypted data; and encrypt the first data digest with a first private key To form a digital signature; the determining whether the second encrypted data can be decrypted in a second decryption manner includes:

Determining whether a first public key can decrypt the digital signature, and the first public key is paired with the first private key;

If yes, generating a second data digest for the first encrypted data;

Determining whether the second data digest is consistent with the first data digest; and

If yes, it is determined that the second encrypted data can be decrypted in a second decryption manner.
A data acquisition system includes a terminal, a diagnostic tool, and a server, and the terminal includes a laser projector, which is characterized by:

The terminal is configured to send first data to the diagnostic tool, where the first data includes an encrypted identification code of the laser projector;

The diagnostic tool is configured to send the first data to the server;

The server is configured to send second data to the diagnostic tool, where the second data includes first encrypted data, and the first encrypted data includes a first encrypted data that matches the identity identification code. Calibration data

The diagnostic tool is further configured to determine whether the second data has been tampered with, and send the second data to the terminal when it is determined that the second data has not been tampered with;

The terminal is further configured to decrypt the first encrypted data in a first decryption manner to obtain the calibration data, and the first decryption manner matches the first encryption manner.
The data acquisition system according to claim 15, wherein the second data further includes second encrypted data, and the server is further configured to encrypt the first encrypted data in a second encryption manner to form the encrypted data. Mentioned second encrypted data;

The diagnostic tool is further configured to determine whether the second encrypted data can be decrypted in a second decryption mode, and the second decryption mode matches the second encryption mode; and

If yes, it is determined that the second data has not been tampered with.
The data acquisition system according to claim 16, wherein the server is further configured to:

Generating a first data digest for the first encrypted data; and

The first data digest is encrypted with a first private key to form a digital signature.
The data acquisition system according to claim 17, wherein the diagnostic tool is further configured to:

Determining whether a first public key can decrypt the digital signature, and the first public key is paired with the first private key;

If yes, generating a second data digest for the first encrypted data;

Determining whether the second data digest is consistent with the first data digest; and

If yes, it is determined that the second encrypted data can be decrypted in a second decryption manner.
The data acquisition system according to claim 15, wherein the second data further includes the identity identification code, and the terminal is further configured to:

Determining whether the identity identification code is consistent with the original identity identification code stored in the terminal; and

If not, use the terminal to decrypt the first encrypted data in a first decryption manner to obtain the calibration data.
The data acquisition system according to claim 15, wherein the terminal forms a trusted execution environment, and the terminal is further configured to encrypt the identity identification code in a third encryption manner in the trusted execution environment. To obtain the first data;

The server is further configured to decrypt the first data in a third decryption manner to obtain the identification code, and the third decryption manner matches the third encryption manner.
The data acquisition system according to claim 15, wherein the terminal is further configured to:

Determining whether the second data has been tampered with; and

If not, the first encrypted data is decrypted in a first decryption manner to obtain the calibration data.
A terminal, the terminal communicates with a server through a diagnostic tool, the terminal includes a laser projector, and the terminal is used for:

Sending first data to the diagnostic tool, so that the diagnostic tool sends the first data to the server, the first data includes an encrypted identification code of the laser projector;

When the diagnostic tool determines that the second data has not been tampered with, the second data sent by the diagnostic tool is received, the second data is sent by the server to the diagnostic tool, and the second data includes a first Encrypted data, the first encrypted data includes calibration data that is encrypted in a first encryption manner and matches the identity identification code; and

The first encrypted data is decrypted in a first decryption manner to obtain the calibration data, and the first decryption manner matches the first encryption manner.
An electronic device includes a diagnostic tool, the diagnostic tool communicates with a terminal and a server, the terminal includes a laser projector, and the diagnostic tool is used for:

Receiving the first data sent by the terminal and forwarding it to the server, where the first data includes an encrypted identification code of the laser projector;

Receiving second data sent by the server, the second data including first encrypted data, the first encrypted data including calibration data that is encrypted in a first encryption manner and matches the identity identification code; and

Determine whether the second data has been tampered with, and send the second data to the terminal when it is determined that the second data has not been tampered with, so as to use the terminal to decrypt the first encrypted data in a first decryption manner Decryption is performed to obtain the calibration data, and the first decryption method matches the first encryption method.
One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause said processors to perform any of claims 1 to 7 A data acquisition method as described in one item; or

When the computer-executable instructions are executed by one or more processors, causing the processors to execute the data acquisition method according to any one of claims 8 to 11; or

When the computer-executable instructions are executed by one or more processors, the processors are caused to execute the data acquisition method according to any one of claims 12 to 14.
A computer device includes a memory and a processor. The memory stores computer-readable instructions. When the instructions are executed by the processor, the processor causes the processor to execute any one of claims 1 to 7. Method of data acquisition; or

When the instruction is executed by the processor, the processor is caused to execute the data acquisition method according to any one of claims 8 to 11; or

When the instruction is executed by the processor, the processor is caused to execute the data acquisition method according to any one of claims 12 to 14.