A decryption method and device and a storage medium

Abstract

This invention relates to a declassification method, apparatus, and storage medium. The method includes: receiving trajectory data and positioning data of a radar device collected at a current moment via a first processor; decoding the trajectory data via the first processor to obtain decoded data; processing the positioning data based on the decoded data via the first processor to obtain positioning storage data; and sending the positioning storage data to a first storage terminal via the first processor to store the positioning storage data in the first storage terminal. In this embodiment of the invention, the positioning data is processed by a first processor, and then the processed positioning data is stored in a first storage unit. Furthermore, by processing the positioning data using track gauge data and storing it, without explicitly identifying all data, the risk of data leakage or loss leading to decryption is reduced, effectively ensuring data security.

Description

Technical Field

[0001] This invention belongs to the field of data processing technology, and in particular relates to a decryption method, apparatus and storage medium. Background Technology

[0002] Currently, in the data transmission of existing ground-penetrating radar (GPR) equipment, all data collected by the equipment is stored with clearly identified identifiers in a single data file. If a data leak or loss occurs, all data will be lost, compromising data security. Furthermore, it is highly likely that the data will fall into the hands of unauthorized personnel, causing potential or actual significant losses to national security. Summary of the Invention

[0003] This invention provides a decryption method, apparatus, and storage medium to solve the problem of poor data security caused by storing all data with clear identifiers in the same data file in related technologies.

[0004] On the one hand, the present invention provides a declassification method, the method comprising:

[0005] The first processor receives the trajectory and positioning data of the radar equipment collected at the current moment.

[0006] The trajectory data is decoded by the first processor to obtain decoded data;

[0007] Based on the first processor processing the location data according to the decoded data, location storage data is obtained;

[0008] The first processor sends the location storage data to the first storage terminal to store the location storage data in the first storage terminal.

[0009] Further, the step of decoding the trajectory data through the first processor to obtain decoded data includes:

[0010] The angle data in the trajectory data is obtained through the first processor;

[0011] The angle data is decoded by the first processor to obtain decoded data.

[0012] Further, the step of decoding the angle data through the first processor to obtain decoded data includes:

[0013] The first processor decodes the angle data according to the following formula to obtain decoded data:

[0014] n = 360 / θ′min*θ′ / 360;

[0015] b = 360 / θ 2 min*θ 2 / 360;

[0016] Where θ′ is the forward rotation angle, θ 2 The angle data includes forward rotation angle, backward rotation angle, minimum resolvable angle for forward rotation, and minimum resolvable angle for reverse rotation; the decoded data includes the number of minimum resolvable angles for forward rotation and the number of minimum resolvable angles for reverse rotation.

[0017] Further, the step of processing the positioning data based on the decoded data by the first processor to obtain positioning storage data includes:

[0018] The first processor encrypts the location data according to the decoded data to obtain the first encrypted data.

[0019] The first processor associates the decoded data with the first encrypted data to obtain the location storage data.

[0020] Furthermore, the method also includes:

[0021] The first processor receives the image data of the radar device acquired at the current moment;

[0022] The first processor processes the image data according to the decoded data to obtain image storage data;

[0023] The image storage data is sent to the second storage terminal by the first processor to store the image storage data in the second storage terminal.

[0024] Further, the step of processing the image data by the first processor based on the decoded data to obtain image storage data includes:

[0025] The first processor encrypts the image data based on the decoded data to obtain the second encrypted data;

[0026] The first processor associates the decoded data with the second encrypted data to obtain the image storage data.

[0027] Furthermore, the method also includes:

[0028] The second processor receives the detection data collected by the radar device at the current moment;

[0029] The second processor receives the decoded data transmitted by the first processor, and processes the detection data according to the decoded data to obtain detection storage data;

[0030] The second processor sends the probe storage data to the third storage terminal for storage.

[0031] Further, the step of receiving the decoded data transmitted by the first processor through the second processor, and the second processor processing the probe data according to the decoded data to obtain probe storage data, includes:

[0032] The second processor encrypts the detection data based on the decoded data to obtain the third encrypted data;

[0033] The second processor associates the decoded data with the third encrypted data to obtain the probe storage data.

[0034] Secondly, the present invention provides a declassification device, the detection device comprising:

[0035] The data acquisition equipment includes a GPS receiver, a camera, and a radar detection device. The GPS receiver is used to acquire trajectory data at the current moment, the camera is used to acquire positioning data at the current moment, and the radar detection device is used to acquire image data and detection data at the current moment.

[0036] A first processor is configured to decode the trajectory data to obtain decoded data; and to process the positioning data and the image data according to the decoded data to obtain positioning storage data and image storage data.

[0037] The second processor is used to process the detection data according to the decoded data to obtain detection storage data;

[0038] The storage device includes a first storage terminal, a second storage terminal, and a third storage terminal. The first storage terminal is used to store location storage data, the second storage terminal is used to store image storage data, and the third storage terminal is used to store detection storage data.

[0039] Thirdly, the present invention provides a readable storage medium having a computer program stored thereon, comprising: when the computer program is executed by a processor, implementing the various steps of the decryption method of the first aspect.

[0040] As can be seen from the above embodiments of the present invention, the present invention processes the positioning data through a first processor and then stores the processed positioning data in a first storage unit; furthermore, the positioning data is processed and stored through track gauge data, without explicitly identifying all data, which reduces the risk of data leakage or loss and subsequent decryption, and effectively ensures data security. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a flowchart illustrating the declassification method in Embodiment 1 of this application;

[0043] Figure 2 This is a flowchart illustrating the declassification method in Embodiment 2 of this application;

[0044] Figure 3 This is a flowchart illustrating the declassification method in Embodiment 3 of this application;

[0045] Figure 4 This is a schematic diagram of the declassification device in Embodiment 4 of this application. Detailed Implementation

[0046] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0047] Example 1

[0048] See Figure 1 The diagram shows a flowchart of a declassification method according to Embodiment 1 of the present invention, applied to a detection radar. The declassification method includes:

[0049] Step S100: Receive the trajectory data and positioning data of the radar device collected at the current moment through the first processor.

[0050] In this embodiment, trajectory data is acquired through an angle sensor, and positioning data is acquired through a GPS receiver. The angle sensor is mounted on the rotating wheel of the radar equipment, and the GPS receiver is mounted on the radar equipment with its acquisition end facing the ground. The first processor simultaneously sends control signals to both the GPS receiver and the angle sensor to control them to acquire data simultaneously; alternatively, an external controller can also simultaneously send control signals to both the GPS receiver and the angle sensor to control them to acquire data simultaneously. Simultaneous acquisition of trajectory and positioning data enables synchronous data processing.

[0051] Step S120: The trajectory data is decoded by the first processor to obtain decoded data.

[0052] In this embodiment, the trajectory data is decoded so that it can be used in subsequent applications, and the trajectory data collected by the angle sensor is associated with the positioning data.

[0053] In an exemplary embodiment, to further process the data, step S120 includes:

[0054] The first processor acquires angle data from the trajectory data; the first processor decodes the angle data to obtain decoded data.

[0055] In an exemplary embodiment, step S120 further includes:

[0056] The first processor decodes the angle data according to the following formula to obtain decoded data:

[0057] n = 360 / θ′min*θ′ / 360;

[0058] b = 360 / θ 2 min*θ 2 / 360;

[0059] Where θ′ is the forward rotation angle, θ 2 Let θ′min be the backward rotation angle, θ2min be the minimum resolvable angle for forward rotation, θ2min be the minimum resolvable angle for reverse rotation, n be the number of minimum resolvable angles for forward rotation, and b be the number of minimum resolvable angles for reverse rotation. The angle data includes forward rotation angle, backward rotation angle, minimum resolvable angle for forward rotation, and minimum resolvable angle for reverse rotation. The decoded data includes the number of minimum resolvable angles for forward rotation and the number of minimum resolvable angles for reverse rotation. θ′ and θ 2 Based on measurements from the angle sensor, θ′min and θ2min are available in the angle sensor model.

[0060] In this embodiment, the actual moving distance S0 can also be calculated based on the angle data. The specific calculation formula is as follows:

[0061]

[0062] Where φ is the diameter of the radar wheel, S0 is the actual moving distance, θ′min is the minimum resolvable angle for forward rotation, and θ2min is the minimum resolvable angle for reverse rotation.

[0063] The actual distance traveled during the calculation may deviate, which is addressed by the distance resolution S. d The range of the actual movement distance can be determined [(S0-S d ), (S0+S d [], where the distance resolution accuracy S d The calculation formula is as follows:

[0064]

[0065] Therefore, the formula for calculating the final travel distance S can be derived as follows:

[0066]

[0067] Step S140: Based on the first processor, the positioning data is processed according to the decoded data to obtain positioning storage data.

[0068] In this embodiment, the decoded data is associated with the location data. The decoded data is n and b in the above formula to obtain the location storage data, so as to facilitate subsequent data query.

[0069] Location data is presented in rows, and the data format is as follows:

[0070] Information type, x, x, x, x, x, x, x, x, x, x, x, x

[0071] The information type can be: Global Positioning Information.

[0072] In an exemplary embodiment, step S140 includes:

[0073] The first processor encrypts the location data according to the decoded data to obtain first encrypted data; the first processor associates the decoded data with the first encrypted data to obtain the location storage data.

[0074] In this embodiment, the first processor can directly associate the positioning data with the decoded data to obtain the positioning storage data. In order to improve the security of the positioning data, the positioning data can also be encrypted by the decoded data. The encryption method is not limited to symmetric encryption, etc., to obtain the first encrypted data, and then associate the first encrypted data with the decoded data.

[0075] Step S160: Based on the first processor, the location storage data is sent to the first storage terminal to store the location storage data in the first storage terminal.

[0076] In this embodiment, to improve data storage, location data can be stored according to the current time, thereby improving data retrieval efficiency. To store the location data in the corresponding first storage terminal, the first processor can obtain the data format of the location data, query the identifier of the corresponding first storage terminal based on the data format, and then send the location data to the first storage terminal for storage based on the identifier of the first storage terminal. The data is not stored in the first processor's original storage unit, thus protecting the data. The first storage terminal is not limited to computer equipment or mobile terminals, and the transmission method is not limited to wireless communication networks.

[0077] Example 2

[0078] See Figure 2 The diagram shows a flowchart of a declassification method according to Embodiment 2 of the present invention, the declassification method comprising:

[0079] Step S200: Receive image data, trajectory data, and positioning data of the radar device collected at the current moment through the first processor.

[0080] In this embodiment, image data is acquired by a camera, trajectory data is acquired by an angle sensor, and positioning data is acquired by a GPS receiver. The first processor simultaneously sends control signals to the camera, angle sensor, and GPS receiver to control them to acquire data simultaneously, thereby synchronizing the acquired image data, trajectory data, and positioning data in time, and thus achieving real-time data acquisition.

[0081] Step S220: The trajectory data is decoded by the first processor to obtain decoded data.

[0082] In this embodiment, the trajectory data is decoded so that it can be used in subsequent applications, and the trajectory data collected by the angle sensor is associated with the positioning data.

[0083] In an exemplary embodiment, to further process the data, step S220 includes:

[0084] The first processor acquires angle data from the trajectory data; the first processor decodes the angle data to obtain decoded data.

[0085] In an exemplary embodiment, step S220 further includes:

[0086] The first processor decodes the angle data according to the following formula to obtain decoded data:

[0087] n = 360 / θ′min*θ′ / 360;

[0088] b = 360 / θ 2 min*θ 2 / 360;

[0089] Where θ′ is the forward rotation angle, θ 2 Let θ′min be the backward rotation angle, θ2min be the minimum resolvable angle for forward rotation, θ2min be the minimum resolvable angle for reverse rotation, n be the number of minimum resolvable angles for forward rotation, and b be the number of minimum resolvable angles for reverse rotation. The angle data includes forward rotation angle, backward rotation angle, minimum resolvable angle for forward rotation, and minimum resolvable angle for reverse rotation. The decoded data includes the number of minimum resolvable angles for forward rotation and the number of minimum resolvable angles for reverse rotation. θ′ and θ 2 Based on measurements from the angle sensor, θ′min and θ2min are available in the angle sensor model.

[0090] Step S240: Based on the first processor processing the positioning data according to the decoded data, positioning storage data is obtained; and based on the first processor processing the image data according to the decoded data, image storage data is obtained.

[0091] In this embodiment, the collected location data and image data are both processed through decoding and then stored separately in different storage terminals. Therefore, the first processor processes the image data in the same way as it processes the location data, facilitating subsequent data retrieval without requiring additional processing.

[0092] In an exemplary embodiment, step S240 further includes:

[0093] The first processor encrypts the image data according to the decoded data to obtain the second encrypted data; the first processor associates the decoded data with the second encrypted data to obtain the image storage data.

[0094] Step S260: Based on the first processor, the positioning storage data is sent to the first storage terminal to store the positioning storage data in the first storage terminal; and based on the first processor, the image storage data is sent to the second storage terminal to store the image storage data in the second storage terminal.

[0095] In this embodiment, to improve data storage, location data and image data can be stored according to the current time, thereby improving data retrieval efficiency. To store the location data and image data in their respective storage terminals, the first processor can obtain the data format of the location data and the data format of the image data, query the identification code of the corresponding storage terminal based on the data format, and then send the location data and image data to their respective storage terminals for storage based on the identification code. That is, the location data is sent to the first storage terminal, and the image data is sent to the second storage terminal, separating the data storage and preventing it from being stored in the first processor's original storage unit, thus achieving data declassification. The first and second storage terminals are not limited to computer devices, mobile terminals, etc., and the transmission method is not limited to wireless communication networks.

[0096] Example 3

[0097] See Figure 3 The diagram shows a flowchart of a declassification method according to Embodiment 3 of the present invention, the method comprising:

[0098] Step S300: Receive image data, trajectory data, and positioning data of the radar device at the current moment through the first processor, and receive detection data collected by the radar device at the current moment through the second processor.

[0099] In this embodiment, image data is acquired by a camera, trajectory data is acquired by an angle sensor, positioning data is acquired by a GPS receiver, and detection data is acquired by a radar detection device on a radar device. The first processor simultaneously sends control signals to the camera, angle sensor, GPS receiver, and radar detection device to control them to acquire data simultaneously, thereby synchronizing the acquired image data, trajectory data, positioning data, and detection data in time, and thus achieving real-time data acquisition.

[0100] Step S320: The trajectory data is decoded by the first processor to obtain decoded data.

[0101] In this embodiment, the trajectory data is decoded so that it can be used in subsequent applications, and the trajectory data collected by the angle sensor is associated with the positioning data.

[0102] In an exemplary embodiment, to further process the data, step S320 includes:

[0103] The first processor acquires angle data from the trajectory data; the first processor decodes the angle data to obtain decoded data.

[0104] In an exemplary embodiment, step S320 further includes:

[0105] The first processor decodes the angle data according to the following formula to obtain decoded data:

[0106] n = 360 / θ′min*θ′ / 360;

[0107] b = 360 / θ 2 min*θ 2 / 360;

[0108] Where θ′ is the forward rotation angle, θ 2 Let θ′min be the backward rotation angle, θ2min be the minimum resolvable angle for forward rotation, θ2min be the minimum resolvable angle for reverse rotation, n be the number of minimum resolvable angles for forward rotation, and b be the number of minimum resolvable angles for reverse rotation. The angle data includes forward rotation angle, backward rotation angle, minimum resolvable angle for forward rotation, and minimum resolvable angle for reverse rotation. The decoded data includes the number of minimum resolvable angles for forward rotation and the number of minimum resolvable angles for reverse rotation. θ′ and θ 2 Based on measurements from the angle sensor, θ′min and θ2min are available in the angle sensor model.

[0109] Step S340: The first processor processes the positioning data according to the decoded data to obtain positioning storage data; the first processor processes the image data according to the decoded data to obtain image storage data; and the second processor receives the decoded data transmitted by the first processor, and the second processor processes the detection data according to the decoded data to obtain detection storage data.

[0110] In this embodiment, the collected positioning data, image data, and detection data are all processed through decoding and then stored separately in different storage terminals. Therefore, the first processor processes image data, positioning data, and detection data in the same way, facilitating subsequent data retrieval without requiring additional processing.

[0111] In an exemplary embodiment, step S340 includes:

[0112] The second processor encrypts the probe data based on the decoded data to obtain third encrypted data; the second processor then associates the decoded data with the third encrypted data to obtain the probe storage data.

[0113] Step S360: Based on the first processor, the positioning storage data is sent to the first storage terminal to store the positioning storage data in the first storage terminal; and based on the first processor, the image storage data is sent to the second storage terminal to store the image storage data in the second storage terminal; and through the second processor, the detection storage data is sent to the third storage terminal to store the detection storage data through the third storage terminal.

[0114] In this embodiment, to improve data storage, location storage data, image storage data, and detection storage data can be stored according to the current time, thereby improving data retrieval efficiency. To store the location storage data, image storage data, and detection storage data in their respective storage terminals, the first processor can obtain the data format of the location data, the data format of the image processing data, and the data format of the detection data. Based on the data format, it queries the identification code of the corresponding storage terminal and then sends the location storage data, image storage data, and detection storage data to their respective storage terminals for storage based on the identification code. That is, the location storage data is sent to the first storage terminal, the image storage data to the second storage terminal, and the detection storage data to the third storage terminal. By storing the image data, location data, and detection data that constitute confidential data separately, and not within the original storage unit of the first processor, data declassification is achieved. The first, second, and third storage terminals are not limited to computer devices, mobile terminals, etc., and the transmission method is not limited to wireless communication networks.

[0115] Example 4

[0116] See Figure 4 This invention provides a declassification device, which includes:

[0117] The data acquisition device includes a GPS receiver 401, a camera 402, and a radar detection device 407. The GPS receiver 401 is used to acquire trajectory data at the current moment, the camera 402 is used to acquire positioning data at the current moment, and the radar detection device 407 is used to acquire image data and detection data at the current moment. The radar detection device 407 is preferably a radar detector head.

[0118] In this embodiment, the GPS receiver 401, camera 402 and radar detection device 407 simultaneously receive the control signal. The GPS receiver 401, camera 402 and radar detection device 407 simultaneously collect data according to the control signal, thereby realizing real-time data collection.

[0119] In this embodiment, since both the camera 402 and the GPS receiver 401 collect location data—that is, the camera 402 collects an image of the ground at the current moment, and the GPS receiver 401 collects the radar's location data at the current moment, i.e., the distance between the ground and the detection radar—the location data and image data can be processed by the same processor. However, the detection data is a radar signal, which requires more complex processing steps and can be processed by a separate processor. Alternatively, a separate processor can be used for both location data and image data, improving data processing efficiency by processing them together.

[0120] In this embodiment, there is information interaction between the first processor 400 and the second processor 406. When the first processor 400 sends a control signal to the camera 402 and the GPS receiver 401 to enable the camera 402 and the GPS receiver 401 to collect data according to the control signal, it also sends a corresponding signal to the second processor 406 to send a control signal to the radar detection device 407, so that the radar detection device 407 can collect data according to the control signal sent by the second processor 406. Alternatively, the second processor 406 can send a corresponding signal to the first processor 400 to enable the first processor 400 to send a control signal for data collection.

[0121] In this embodiment, an external controller can also send control signals to the camera 402, GPS receiver 401, and radar detection device 407 simultaneously, so that the camera 402, GPS receiver 401, and radar detection device 407 can simultaneously collect data according to the control signals sent by the external controller.

[0122] The first processor 400 is used to decode the trajectory data to obtain decoded data; and to process the positioning data and the image data according to the decoded data to obtain positioning storage data and image storage data.

[0123] In this embodiment, the first processor 400 first decodes the trajectory data to obtain decoded data. Then, the processing unit of the first processor 400 can process the positioning data and image data simultaneously based on the decoded data. The processing method can be to associate the decoded data with the positioning data and image data, or to encrypt the positioning data and image data separately using the decoded data. The encryption methods for the positioning data and image data are the same. Then, the decoded data is associated with the encrypted positioning data and encrypted image data to obtain positioning storage data and image storage data.

[0124] The second processor 406 is used to process the detection data according to the decoded data to obtain detection storage data.

[0125] In this embodiment, the second processor 406 receives the decoded data sent from the first processor 400. After obtaining the decoded data, the first processor 400 immediately sends it to the second processor 406, so that the second processor 406 processes the detection data according to the decoded data. The processing method can be to associate the decoded data with the detection data, or to encrypt the detection data using the decoded data. The encryption method is the same as the encryption method of the positioning data and image data. Then, the decoded data is associated with the encrypted detection data to obtain the detection storage data.

[0126] The storage device includes a first storage terminal 404, a second storage terminal 405, and a third storage terminal 408. The first storage terminal 404 is used to store positioning storage data, the second storage terminal 405 is used to store image storage data, and the third storage terminal 408 is used to store detection storage data.

[0127] In this embodiment, the first storage terminal 404, the second storage terminal 405, and the third storage terminal 408 are three different mobile terminals. The location storage data, image storage data, and detection storage data are stored on different mobile terminals respectively, so as to achieve data independence. If the stored data is leaked, the security is greatly guaranteed due to the separate storage of the data.

[0128] In this embodiment, the trajectory data collected by the angle sensor 403 is decoded to obtain decoded data. The decoded data is then correlated with the positioning data, image data, and detection data to ensure the consistency of the data in time. The data is then stored in different storage terminals, thereby achieving data decryption of the positioning data, image data, and detection data and improving the independence and security of the data.

[0129] The present invention also provides a storage medium storing a computer program thereon, which, when executed by a processor, implements the various steps of the task execution decryption method provided in the method embodiment.

[0130] The above is a description of the decryption method, apparatus and storage medium for task execution programs provided by the present invention. For those skilled in the art, based on the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A declassification method, characterized in that, The declassification method includes: The first processor receives the trajectory and positioning data of the radar equipment collected at the current moment. The angle data in the trajectory data is obtained through the first processor; The first processor decodes the angle data according to the following formula to obtain decoded data: n = 360 / θ´min*θ´ / 360; b = 360 / θ²min*θ² / 360; Wherein, θ´ is the forward rotation angle, θ² is the backward rotation angle, θ´min is the minimum resolvable angle for forward rotation, θ²min is the minimum resolvable angle for reverse rotation, n is the number of minimum resolvable angles for forward rotation, and b is the number of minimum resolvable angles for reverse rotation; the angle data includes the forward rotation angle, the backward rotation angle, the minimum resolvable angle for forward rotation, and the minimum resolvable angle for reverse rotation; the decoded data includes the number of minimum resolvable angles for forward rotation and the number of minimum resolvable angles for reverse rotation. The first processor encrypts the location data according to the decoded data to obtain first encrypted data; the first processor associates the decoded data with the first encrypted data to obtain the location storage data. The first processor sends the location storage data to the first storage terminal to store the location storage data in the first storage terminal.

2. The declassification method according to claim 1, characterized in that, The method further includes: The first processor receives the image data of the radar device acquired at the current moment; The first processor processes the image data according to the decoded data to obtain image storage data; The image storage data is sent to the second storage terminal by the first processor to store the image storage data in the second storage terminal.

3. The declassification method according to claim 2, characterized in that, The step of processing the image data according to the decoded data by the first processor to obtain image storage data includes: The first processor encrypts the image data based on the decoded data to obtain the second encrypted data; The first processor associates the decoded data with the second encrypted data to obtain the image storage data.

4. The declassification method according to claim 1, characterized in that, The method further includes: The second processor receives the detection data collected by the radar device at the current moment; The second processor receives the decoded data transmitted by the first processor, and the second processor processes the detection data according to the decoded data to obtain detection storage data; The second processor sends the probe storage data to the third storage terminal for storage.

5. The declassification method according to claim 4, characterized in that, The step of receiving the decoded data transmitted by the first processor through the second processor, and the second processor processing the probe data according to the decoded data to obtain probe storage data includes: The second processor encrypts the detection data based on the decoded data to obtain the third encrypted data; The second processor associates the decoded data with the third encrypted data to obtain the probe storage data.

6. A declassification device, characterized in that, The declassification device includes: The data acquisition equipment includes a GPS receiver, a camera, and a radar detection device. The GPS receiver is used to acquire trajectory data at the current moment, the camera is used to acquire positioning data at the current moment, and the radar detection device is used to acquire image data and detection data at the current moment. A first processor is configured to acquire angle data from the trajectory data; and decode the angle data according to the following formula to obtain decoded data: n = 360 / θ´min*θ´ / 360; b = 360 / θ²min*θ² / 360; Wherein, θ´ is the forward rotation angle, θ² is the backward rotation angle, θ´min is the minimum resolvable angle for forward rotation, θ²min is the minimum resolvable angle for reverse rotation, n is the number of minimum resolvable angles for forward rotation, and b is the number of minimum resolvable angles for reverse rotation; the angle data includes the forward rotation angle, the backward rotation angle, the minimum resolvable angle for forward rotation, and the minimum resolvable angle for reverse rotation; the decoded data includes the number of minimum resolvable angles for forward rotation and the number of minimum resolvable angles for reverse rotation; and the positioning data and the image data are encrypted according to the decoded data to obtain the first encrypted data and the second encrypted data respectively; the decoded data are associated with the first encrypted data and the second encrypted data respectively to obtain the positioning storage data and the image storage data respectively; The second processor is used to process the detection data according to the decoded data to obtain detection storage data; The storage device includes a first storage terminal, a second storage terminal, and a third storage terminal. The first storage terminal is used to store location storage data, the second storage terminal is used to store image storage data, and the third storage terminal is used to store detection storage data.

7. A readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements each step of the decryption method as described in any one of claims 1 to 5.

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