CN111444741B

CN111444741B - Data display method, data acquisition method, data display device, data acquisition device, electronic equipment and storage medium

Info

Publication number: CN111444741B
Application number: CN202010244366.9A
Authority: CN
Inventors: 孙达; 李昕龙
Original assignee: Hangzhou Hikvision System Technology Co Ltd
Current assignee: Hangzhou Hikvision System Technology Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2023-02-03
Anticipated expiration: 2040-03-31
Also published as: CN111444741A

Abstract

The embodiment of the application provides a data display method, a data acquisition method, a data display device, a data acquisition device, an electronic device and a storage medium, and relates to the technical field of data processing, and the method comprises the following steps: obtaining a data block size and a first refresh rate determined according to a resolution and a frame rate supported by an image acquisition device of a second device; partitioning the data to be obtained of the second equipment according to the size of the data block to obtain each data block; generating a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained aiming at each data block; and circularly displaying each generated two-dimensional code according to the first refreshing rate. By applying the data display and acquisition scheme provided by the embodiment of the application, the first equipment can display the data required by the second equipment, and the second equipment acquires the data by acquiring the content displayed by the first equipment.

Description

Data display method, data acquisition method, data display device, data acquisition device, electronic equipment and storage medium

Technical Field

The present application relates to the field of data processing technologies, and in particular, to a method and an apparatus for displaying and obtaining data, an electronic device, and a storage medium.

Background

When the second device needs to obtain data from the first device, the first device is inconvenient to directly transmit the data needed by the second device to the second device through the network due to poor network state between the two devices or considering data security and other factors.

Therefore, a data display scheme is needed to enable a first device to display data required by a second device, and the second device acquires the data by collecting content displayed by the first device.

Disclosure of Invention

An embodiment of the application aims to provide a data display method, a data acquisition method, a data display device, an electronic device and a storage medium, so that a first device displays data required by a second device, and the second device acquires the data by acquiring content displayed by the first device. The specific technical scheme is as follows:

in a first aspect, an embodiment of the present application provides a data display method, where the method is applied to a first device, and the method includes:

obtaining a data block size and a first refresh rate determined according to a resolution and a frame rate supported by an image acquisition device of a second device;

partitioning the data to be obtained of the second equipment according to the size of the data block to obtain each data block;

generating a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained aiming at each data block;

and circularly displaying each generated two-dimensional code according to the first refreshing rate.

In an embodiment of the application, after the data to be obtained of the second device is partitioned according to the size of the data block to obtain each data block, the method further includes:

counting the total number of the obtained data blocks;

the generating, for each data block, a two-dimensional code carrying the data block and a sequence number of the data block in the data to be obtained includes:

and generating a two-dimensional code carrying the data block, the sequence number of the data block in the data to be obtained and the total number aiming at each data block.

In one embodiment of the present application, the data block size is determined according to a resolution in a largest parameter pair;

the first data refresh rate is determined according to a frame rate in the largest parameter pair;

the maximum parameter pair is: the image acquisition device supports a corresponding parameter pair with the maximum data acquisition amount in unit time, and each parameter pair comprises: one resolution and one frame rate.

In one embodiment of the present application, the method further comprises:

obtaining a sequence number of a failed data block, wherein the sequence number of the failed data block comprises: the sequence number of the obtained data block cannot be analyzed;

determining a second refresh rate that is lower than the first refresh rate;

and circularly displaying the two-dimensional code carrying the serial number of the failed data block according to the second refreshing rate.

In one embodiment of the present application, the method further comprises:

obtaining a reduced data block size and a reduced first refresh rate, wherein the reduced data block size and the reduced first refresh rate are: under the condition that the number of the failed data blocks is larger than the preset number, reducing the size of the data blocks and the value of a first refresh rate to obtain the size of the data blocks and the first refresh rate, wherein the failed data blocks comprise: data blocks which cannot be obtained by analysis;

and returning to the step of blocking the data to be obtained of the second equipment according to the size of the data block to obtain each data block.

In a second aspect, an embodiment of the present application provides a data obtaining method, where the method is applied to a second device, and the method includes:

acquiring an image of a two-dimensional code displayed by first equipment according to a first refreshing rate, wherein each two-dimensional code carries a data block and a serial number of the data block in data to be acquired of second equipment, the data block is obtained by the first equipment by partitioning the data to be acquired according to the size of the data block, and the size of the data block and the first refreshing rate are determined according to the resolution and the frame rate supported by an image acquisition device of the second equipment;

analyzing the two-dimensional codes in the acquired image to obtain data blocks carried by the two-dimensional codes and serial numbers of the data blocks;

and splicing the data blocks according to the serial numbers of the data blocks to obtain spliced data.

In one embodiment of the present application, the method further comprises:

obtaining sets of parameter pairs supported by the image acquisition device, wherein each parameter pair comprises: a resolution and a frame rate;

determining the parameter pair with the maximum data acquisition amount in unit time corresponding to each group of parameter pairs as the maximum parameter pair;

determining the data block size according to the resolution in the maximum parameter pair;

and determining the first refresh rate according to the frame rate in the maximum parameter pair.

In an embodiment of the present application, each two-dimensional code further carries a total number, where the total number is: the first equipment divides the data to be obtained into blocks to obtain the number of data blocks;

the analyzing the two-dimensional codes in the collected image to obtain the data blocks carried by the two-dimensional codes and the serial numbers of the data blocks comprises the following steps:

according to the image acquisition sequence, the two-dimensional codes in the acquired images are analyzed in sequence to obtain the data blocks carried by the two-dimensional codes and the serial numbers of the data blocks, and whether one round of two-dimensional code analysis is completed or not is judged according to the analyzed serial numbers and a first serial number of the data blocks, wherein the first serial number is as follows: analyzing the two-dimensional code in the acquired image to obtain a serial number of a first data block;

if the two-dimensional codes are analyzed, judging whether all data blocks included in the data to be obtained are analyzed according to the number of the analyzed two-dimensional codes and the total number;

and if the data blocks are analyzed, executing the step of splicing the data blocks carried by the two-dimensional codes according to the serial numbers of the data blocks and the serial numbers obtained from the data blocks to obtain spliced data.

In one embodiment of the present application, the method further comprises:

if all data blocks included in the data to be obtained are not analyzed, determining a serial number of a failed data block, so that the first device redisplays the two-dimensional code carrying the serial number of the failed data block, wherein the serial number of the failed data block comprises: the sequence number of the obtained data block cannot be analyzed.

In one embodiment of the present application, the method further comprises:

if all the data blocks included in the data to be obtained are not analyzed, obtaining the number of failed data blocks;

and if the number is larger than the preset number, the first device is instructed to reduce the size of the data block and the first refresh rate, so that the first device blocks the data to be obtained again based on the reduced size of the data block and displays the two-dimensional code carrying the obtained data block again based on the reduced first refresh rate.

In a third aspect, an embodiment of the present application provides a data display apparatus, where the apparatus is applied to a first device, and the apparatus includes:

the display parameter obtaining module is used for obtaining the size of a data block and a first refresh rate which are determined according to the resolution and the frame rate supported by an image acquisition device of the second equipment;

the data blocking module is used for blocking the data to be obtained of the second equipment according to the size of the data block to obtain each data block;

the two-dimensional code generation module is used for generating a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained aiming at each data block;

and the two-dimension code display module is used for circularly displaying each generated two-dimension code according to the first refreshing rate.

In one embodiment of the present application, the apparatus further comprises:

the data block counting module is used for counting the total number of the obtained data blocks after the data to be obtained of the second device is blocked according to the size of the data blocks to obtain each data block;

the two-dimensional code generation module is specifically configured to:

In one embodiment of the application, the data block size is determined according to the resolution in the largest parameter pair;

In an embodiment of the present application, the apparatus further includes a first failure data block display module, configured to:

determining a second refresh rate that is lower than the first refresh rate;

In an embodiment of the present application, the apparatus further includes a second failure data block display module, configured to:

obtaining a reduced data block size and a reduced first refresh rate, wherein the reduced data block size and the reduced first refresh rate are: under the condition that the number of the failed data blocks is larger than the preset number, reducing the size of the data blocks and the value of a first refresh rate to obtain the size of the data blocks and the first refresh rate, wherein the failed data blocks comprise: and triggering the data blocking module if the obtained data block cannot be analyzed.

In a fourth aspect, an embodiment of the present application provides a data obtaining apparatus, where the apparatus is applied to a second device, and the apparatus includes:

the image acquisition module is used for acquiring images of two-dimensional codes displayed by first equipment according to a first refresh rate, wherein each two-dimensional code carries a data block and a serial number of the data block in data to be acquired of second equipment, the data block is obtained by the first equipment by partitioning the data to be acquired according to the size of the data block, and the size of the data block and the first refresh rate are determined according to the resolution and the frame rate supported by an image acquisition device of the second equipment;

the two-dimensional code analysis module is used for analyzing the two-dimensional codes in the acquired image to obtain data blocks carried by the two-dimensional codes and serial numbers of the data blocks;

and the data splicing module is used for splicing the data blocks according to the serial numbers of the data blocks to obtain spliced data.

In an embodiment of the present application, the apparatus further includes a display parameter determination module configured to:

determining the first refresh rate according to a frame rate in the largest parameter pair.

the two-dimensional code analysis module is specifically used for:

if so, judging whether all data blocks included in the data to be obtained are analyzed according to the number of the analyzed two-dimensional codes and the total number;

and if the data blocks are analyzed, the step of splicing the data blocks carried by the two-dimensional codes according to the serial numbers of the data blocks and the serial numbers obtained by the data blocks to obtain spliced data is executed.

In an embodiment of the present application, the apparatus further includes a failed data block sequence number determining module, configured to:

In an embodiment of the present application, the apparatus further includes a display parameter indication module configured to:

and if the number is larger than the preset number, the first device is instructed to reduce the size of the data block and the first refreshing rate, so that the first device divides the data to be obtained again according to the reduced size of the data block and displays the two-dimensional code carrying the obtained data block again according to the reduced first refreshing rate.

In a fifth aspect, an embodiment of the present application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any of the first aspect when executing a program stored in the memory.

In a sixth aspect, an embodiment of the present application provides an electronic device, which includes a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of the second aspect when executing the program stored in the memory.

In a seventh aspect, this application provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the method steps of any one of the first aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the method steps of any one of the second aspects.

Embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to perform any of the above-described data display and/or data acquisition methods.

The embodiment of the application has the following beneficial effects:

when the scheme provided by the embodiment of the application is used for displaying data, the first device obtains the size of a data block and a first refresh rate which are determined according to the resolution and the frame rate supported by an image acquisition device of the second device, blocks the data to be obtained of the second device according to the size of the data block to obtain each data block, generates a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained aiming at each data block, and circularly displays each generated two-dimensional code according to the first refresh rate. Therefore, when the second device obtains data, the second device can collect the image of the two-dimensional code displayed by the first device according to the first refreshing rate, analyze the two-dimensional code in the collected image, obtain the data blocks carried by each two-dimensional code and the serial numbers of the data blocks, and splice each data block according to the serial numbers of each data block, so as to obtain the spliced data. Therefore, on one hand, the second device does not need to establish network connection with the first device, and obtains the data to be obtained in a mode of collecting the two-dimensional code displayed by the first device. Therefore, even under the condition that the network connection between the first device and the second device is difficult to establish, the second device can obtain expected data by applying the scheme provided by the embodiment of the application.

On the other hand, the refresh rate of the two-dimensional codes displayed by the first device and the size of the data block carried by each two-dimensional code are determined according to the resolution and frame rate supported by the image acquisition device of the second device, so that the first device can fully utilize the performance of the second device for obtaining data when transmitting data, and the data transmission efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic flow chart of a first data display method according to an embodiment of the present application.

Fig. 2 is a schematic flow chart of a second data display method according to an embodiment of the present application.

Fig. 3 is a schematic flowchart of a third data display method according to an embodiment of the present application.

Fig. 4 is a schematic flowchart of a data obtaining method according to an embodiment of the present application.

Fig. 5 is a flowchart illustrating a display parameter determining method according to an embodiment of the present application.

Fig. 6 is a schematic flowchart of another data obtaining method according to an embodiment of the present application.

Fig. 7 is an interaction diagram provided in an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a data display device according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a data obtaining apparatus according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable a first device to display data required by a second device, the second device obtains the data by acquiring content displayed by the first device, and improves data transmission efficiency, embodiments of the present application provide a data display method, a data obtaining method, a data display device, an electronic device, and a storage medium, which are described in detail below.

Referring to fig. 1, fig. 1 is a schematic flowchart of a first data display method provided in an embodiment of the present application, where the method is applied to a first device. The first device may be an electronic computer, tablet computer, mobile phone, etc. with a display device. The data display method comprises the following steps 101-104.

Step 101, obtaining a data block size and a first refresh rate determined according to a resolution and a frame rate supported by an image acquisition device of a second device.

The image acquisition device can be a camera, a video recorder, a code scanner and the like, and the second equipment can be a mobile phone, a tablet personal computer and other electronic equipment containing the image acquisition device.

For convenience of expression, data that the second device needs to obtain from the first device is referred to as data to be obtained. When the second device needs to obtain data to be obtained, the general idea of the embodiment of the application is as follows: and the first equipment carries out blocking processing on the data to be obtained to obtain data blocks, generates two-dimensional codes respectively carrying the data blocks, and displays the two-dimensional codes. Therefore, the second device acquires the images of the two-dimensional codes and analyzes the acquired images to obtain the data blocks, and further obtains the data to be acquired.

In view of the above, the first device needs to obtain the data block size and the first refresh rate. The data block size is a size of a data block divided when data is divided into blocks. The first refresh rate is a refresh rate of the two-dimensional code when each two-dimensional code is displayed.

Each image capture device may support multiple resolutions, for example, the resolution supported by the image capture device may be 1280 × 720, 1920 × 1080, 4096 × 2160, etc. When the resolution supported by the image acquisition device is larger, the acquired image has higher definition, and the data volume of each frame of image is larger, so that the data volume for describing the expressed content in the image is larger, and when the image is analyzed subsequently, the more information which can be referred by the same content is analyzed, the more convenience is brought to the identification and analysis of the content expressed by the image. For a two-dimensional code image, the denser the color blocks in the two-dimensional code image, the larger the amount of data carried. It can be seen that the resolution supported by the image acquisition device is positively correlated with the data volume carried by the two-dimensional code image which is supported and analyzed, and the higher the resolution of the image acquisition device is, the larger the data volume carried by the two-dimensional code image which is supported and analyzed is.

For example, when the resolution of the image capture device is 1280 × 720, the data block size may be determined to be 300 bits; when the resolution of the image acquisition device is 4096 × 2160, the data block size may be determined to be 900 bits.

Each image acquisition device can also support various frame rates, and the frame rate supported by the image acquisition device refers to the number of images which can be acquired in unit time. The frame rate may be 60fps, which means that the image capturing device can capture 60 frames of images in 1 second. The frame rate may also be 50fps, which means that the image capturing device can capture 50 frames of images in 1 second. The higher the frame rate, the larger the number of two-dimensional code images that can be acquired by the image acquisition device per unit time. For the two-dimensional code image, the larger the refresh rate, the more the two-dimensional code image can be displayed per unit time. Therefore, the frame rate supported by the image acquisition device is positively correlated with the refresh rate of the two-dimensional code image supported for acquisition, and the higher the frame rate of the image acquisition device is, the higher the refresh rate of the two-dimensional code image supported for acquisition is.

The manner in which the data block size and the first refresh rate are determined can be found in the following embodiments and will not be described in detail here.

The first device may obtain the above-described data block size and first refresh rate in a variety of ways.

In an embodiment of the present application, the second device may determine the size of the data block and the first refresh rate according to the resolution and the frame rate supported by the image capture device of the second device, and then send the size of the data block and the first refresh rate to the first device, so that the first device obtains the size of the data block and the first refresh rate.

The size of the data block and the first refresh rate can be displayed on a display device of the second device after the size of the data block and the first refresh rate are determined by the second device, and the worker inputs the size of the data block and the first refresh rate into the first device according to information displayed by the display device, so that the first device obtains the size of the data block and the first refresh rate.

The second device can also obtain the resolution and the frame rate supported by the image acquisition device of the second device, and then sends the resolution and the frame rate to the first device, and the first device determines the size of the data block and the first refresh rate according to the received resolution and frame rate.

The second device may also display the resolution and the frame rate on its own display device after obtaining the resolution and the frame rate supported by its own image acquisition device, and the worker inputs the resolution and the frame rate into the first device according to the information displayed by the display device, so that the first device determines the size of the data block and the first refresh rate according to the received resolution and frame rate.

And 102, blocking the data to be obtained of the second equipment according to the size of the data block to obtain each data block.

Wherein, the data to be obtained are: the second device expects data obtained from the first device.

Specifically, the first device may divide the data to be obtained according to the size of the data block to obtain each data block, where the size of each data block is the size of the data block. For example, assuming that the data amount of the data to be obtained is 6000 bits and the data block size is 300 bits, the data to be obtained may be divided into 20 data blocks each having a size of 300 bits.

In addition, the data amount of the data to be obtained may not be an integer multiple of the size of the data block, in this case, the data to be obtained may be divided into data blocks of the size of the data block, and then the data of which the remaining data amount is smaller than the size of the data block may be divided into one data block, that is, the number of the finally obtained data blocks is an integer obtained by dividing the data amount of the data to be obtained by the size of the data block plus 1. For example, assuming that the data to be obtained is 2000 bits and the data block size is 300 bits, the data to be obtained may be divided into 7 data blocks, wherein the size of each of the 6 data blocks is 300 bits and the size of one data block is 200 bits.

And 103, generating a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained aiming at each data block.

Wherein, the above sequence numbers are: and numbering according to the sequence of the data blocks in the data to be obtained to obtain the serial numbers. For example, if the data to be obtained is divided into 5 data blocks, the sequence numbers of the 5 data blocks are respectively 1 to 5 according to the sequence of the 5 data blocks in the data to be obtained.

In an embodiment of the present application, a sequence number area and a data block area in data carried by a two-dimensional code may be preset. The sequence number area is used for carrying the sequence number of each data block, and the data block area is used for carrying the data block. Specifically, the serial number area may be located before the data carried by the two-dimensional code, or may be located at the last of the data carried by the two-dimensional code, or may be located in the middle of the data carried by the two-dimensional code. For example, the sequence number area may be the first 8 bits of data carried by the two-dimensional code, and the data block area may be the remaining bits.

In an embodiment of the application, an arrangement sequence of the serial numbers and the data blocks in the data carried by the two-dimensional code may also be preset, and the serial numbers and the data blocks are separated by preset identifiers, so that when the two-dimensional code is generated, the two-dimensional code separated by the preset identifiers is generated according to the arrangement sequence. The sequence may be that the sequence number is before and the data block is after, or that the sequence number is before and the sequence number is after. The identifier may be ","; "-", etc. Therefore, when the second equipment analyzes the two-dimensional code, the serial number and the data block carried by the two-dimensional code can be accurately obtained.

For example, if the above-mentioned arrangement order is that the sequence number is before and the data block is after, the identifier is ",", the sequence number of the data block is 3, and the data block is "information", the data carried by the generated two-dimensional code is "3,information".

And 104, circularly displaying each generated two-dimensional code according to a first refreshing rate.

The first device displays each generated two-dimensional code according to the first refresh rate in a circulating mode, so that the displayed two-dimensional codes can change dynamically, and therefore the two-dimensional codes displayed by the first device can be considered as dynamic two-dimensional codes.

Therefore, the second equipment can acquire the images of the two-dimensional codes displayed by the first equipment by using the image acquisition device to obtain two-dimensional code images, and the two-dimensional code images are analyzed to obtain data carried in the two-dimensional codes.

According to one embodiment of the application, the two-dimensional codes can be circularly displayed according to a first refresh rate according to the sequence of the sequence number of the data block carried by each two-dimensional code from small to large or from large to small; and circularly displaying the two-dimensional codes according to the first refreshing rate in a random sequence.

In an embodiment of the application, when the first device displays the two-dimensional code, the generated two-dimensional code can be displayed in multiple rounds, and the two-dimensional code can also be displayed according to preset duration. This facilitates the second device being able to acquire the full generated two-dimensional code.

In an embodiment of the present application, the two-dimensional Code generated by the first device may be a QR Code two-dimensional Code, and the fault tolerance of the two-dimensional Code in this format is 15%, which may improve the reliability of the generated two-dimensional Code.

When the scheme provided by the embodiment is applied to data display, the first device obtains the size of a data block and a first refresh rate determined according to the resolution and the frame rate supported by the image acquisition device of the second device, blocks the data to be obtained of the second device according to the size of the data block to obtain each data block, generates a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained for each data block, and circularly displays each generated two-dimensional code according to the first refresh rate. Therefore, when the second device obtains data, the second device can collect the image of the two-dimensional code displayed by the first device according to the first refreshing rate, analyze the two-dimensional code in the collected image, obtain the data blocks carried by each two-dimensional code and the serial numbers of the data blocks, and splice each data block according to the serial numbers of each data block, so as to obtain the spliced data. The second device does not need to establish network connection with the first device, and obtains data to be obtained in a mode of collecting the two-dimensional code displayed by the first device. Therefore, even under the condition that the network connection between the first device and the second device is difficult to establish, the second device can obtain expected data by applying the scheme provided by the embodiment of the application.

In addition, the size of the data block and the first refresh rate are determined according to the resolution and the frame rate supported by the image acquisition device of the second device, the higher the resolution that the image acquisition device can support, the larger the size of the data block, the higher the frame rate that the image acquisition device can support, and the larger the first refresh rate, so that the data volume of the data block carried by each two-dimensional code can be matched with the performance of the second device, and thus, the hardware resources of the second device can be fully utilized, and the second device can obtain more data in unit time.

In an embodiment of the present application, after the data to be obtained is partitioned in the step 102 to obtain each data block, the total number of the obtained data blocks may also be counted.

Thus, when the two-dimensional code is generated in step 103, a two-dimensional code carrying the data block, the sequence number of the data block in the data to be obtained, and the total number of the data block may be generated for each data block. Therefore, when the second device analyzes the two-dimensional code image, the total number of the data blocks can be obtained, and whether the total number of the data blocks in the data to be obtained is analyzed is judged according to the total number, so that the second device can be effectively ensured to obtain the required data to be obtained.

Specifically, a sequence number area, a total number area, and a data block area may be preset in data carried by the two-dimensional code. The sequence number area is used for carrying the sequence number of each data block, the total number area is used for carrying the total number of the data blocks, and the data block area is used for carrying the data blocks. The sequence number, the total number and the arrangement sequence of the data blocks in the data carried by the two-dimensional code can be preset, and preset identifiers are inserted among the data blocks, the sequence number and the total number, so that the data blocks, the sequence number and the total number are distinguished. For example, if the above arrangement order is that the sequence number is before, the total number is in the middle, and the data block is after, the identifier is ",", the sequence number of the data block is 3, the total number is 20, and the data block is "information", the data carried by the generated two-dimensional code is "3, 20, information".

Referring to fig. 2, fig. 2 is a schematic flow chart of a second data display method provided in an embodiment of the present application, where the method includes the following steps 201 to 203.

Step 201, obtaining the sequence number of the failed data block.

Wherein, the sequence number of the failed data block comprises: the sequence number of the obtained data block cannot be analyzed. Specifically, the method may include the sequence number of the data block carried by the two-dimensional code in the two-dimensional code image in which the second device fails to analyze, where the two-dimensional code image is: and the second equipment acquires an image obtained by the two-dimensional code displayed by the first equipment. The sequence number of the failed data block may further include: and the serial number of the data block carried by the two-dimensional code in the two-dimensional code image which cannot be acquired by the image acquisition device of the second equipment.

Specifically, when the second device performs image acquisition on the two-dimensional code displayed by the first device and analyzes the acquired image, there may be a case where the analysis fails. For example, the failure of the analysis may be caused by an error in data carried in the two-dimensional code, or a failure to acquire a clear and complete two-dimensional code image when acquiring an image. The analysis failure also includes failure to obtain a separator between a preset sequence number and data, a separator between the total number and a data block, and the like. In addition, because the two-dimensional code refreshing of the first device and the two-dimensional code image acquisition of the second device are not synchronous, the two-dimensional code image acquisition of the second device may not be complete. In view of the above, in order to ensure that the second device can successfully obtain the data to be obtained, it is necessary to obtain the sequence number of the failed data block.

In an embodiment of the application, under the condition that the two-dimensional code carries the total number of the data blocks, after the second device successfully analyzes the two-dimensional code in any two-dimensional code image, the total number of the data blocks can be obtained. The second device may determine the sequence number of the failed data block based on the total number and the sequence number of the successfully parsed data block. For example, assuming that the total number is 10, the sequence numbers of the successfully parsed data blocks are 1-5 and 8-10, and the sequence numbers of the failed data blocks are 6 and 7 can be determined.

In an embodiment of the application, after the second device obtains the serial number of the failed data block through statistics, the serial number of the failed data block is sent to the first device, so that the first device obtains the serial number of the failed data block. The second device may display the serial number of the failed data block in a display device, and the worker inputs the serial number into the first device according to the information displayed by the display device, so that the first device obtains the serial number of the failed data block.

At step 202, a second refresh rate that is lower than the first refresh rate is determined.

Specifically, the second device fails to analyze the two-dimensional code image, which may be caused by a reason that the first refresh rate is high when the first device displays the two-dimensional code image, so that the second device is difficult to acquire a clear two-dimensional code image. Therefore, the first refreshing rate can be reduced, the probability that the second equipment acquires a clear two-dimensional code image is improved, and the probability that the second equipment successfully analyzes the two-dimensional code image is improved.

In an embodiment of the present application, the first refresh rate may be decreased according to a preset difference, so as to obtain the second refresh rate. The preset difference may be 50fps, 80fps, 100fps, etc. For example, assuming a first refresh rate of 500fps and a predetermined difference of 50fps, a second refresh rate of 450fps may be obtained.

According to an embodiment of the present application, the first refresh rate may be further reduced according to a preset ratio, so as to obtain the second refresh rate. The predetermined ratio may be 0.5, 0.6, 0.8, etc. For example, assuming a first refresh rate of 500fps and a predetermined ratio of 0.5, a second refresh rate of 250fps may be obtained.

In an embodiment of the present application, the second device may further calculate a second refresh rate, and then send the second refresh rate to the first device, so that the first device may obtain the second refresh rate. The second device may display the calculated second refresh rate on a display device, and the worker inputs the rate to the first device according to information displayed on the display device, so that the first device obtains the second refresh rate.

And 203, circularly displaying the two-dimensional code carrying the serial number of the failed data block according to a second refreshing rate.

Therefore, the two-dimensional code can be displayed according to a slower refreshing rate, and the success rate of obtaining the two-dimensional code image by the second equipment and analyzing the two-dimensional code image to obtain the data block can be improved. And only the two-dimensional code carrying the serial number of the failed data block is displayed, and all the two-dimensional codes are not required to be displayed, so that the display efficiency can be improved, and the efficiency of obtaining data by the second equipment is further improved.

The method can be applied to the condition that the number of the two-dimensional code images failed to be analyzed by the second device is small, and when the number of the two-dimensional code images failed to be analyzed is large, the two-dimensional code can be displayed according to the following modes:

referring to fig. 3, fig. 3 is a schematic flow chart of a third data display method provided in the embodiment of the present application, where the method further includes the following steps 105:

step 105, obtaining the reduced data block size and the reduced first refresh rate, and returning to step 102.

Wherein the reduced size of the data block and the reduced first refresh rate are: and under the condition that the number of the failed data blocks is larger than the preset number, reducing the size of the data blocks and the value of the first refresh rate to obtain the size of the data blocks and the first refresh rate. The predetermined number may be 5, 10, 15, etc.

The failed data block includes: the resulting data block cannot be parsed. The method specifically comprises the following steps: the data block carried by the two-dimensional code in the two-dimensional code image failed to be analyzed by the second device is as follows: and the second equipment acquires an image obtained by the two-dimensional code displayed by the first equipment. The above-mentioned failure data block may further include: and the image acquisition device of the second equipment cannot acquire the data block carried by the two-dimensional code in the two-dimensional code image.

Specifically, when a large number of data blocks cannot be obtained through analysis, it may be difficult for the second device to acquire a clear and complete two-dimensional code image because the current first refresh rate is fast; or the size of the data block carried in each two-dimensional code image is large, which may also result in that the color blocks of the two-dimensional codes in the two-dimensional code image collected by the second device are too dense, and it is difficult to successfully analyze the data block carried by the two-dimensional code when analyzing the two-dimensional code image. Accordingly, the data block size and the first refresh rate may be reduced.

In an embodiment of the application, when the number of failed data blocks is large, the second device prompts a worker through a display device of the second device, the worker controls the first device to reduce the size of the data blocks and reduce the first refresh rate, controls to block the data to be obtained again according to the reduced size of the data blocks, regenerates the two-dimensional code, and displays the regenerated two-dimensional code according to the reduced first refresh rate.

In another embodiment of the application, when there are many failed data blocks, the second device may reduce the size of the data block and the first refresh rate, and display the reduced parameters on its own display device, and the worker inputs the parameters into the first device according to information displayed by the display device, so that the first device divides the data to be obtained again according to the reduced size of the data block, regenerates the two-dimensional code, and displays the regenerated two-dimensional code according to the reduced first refresh rate.

In another embodiment of the present application, the second device may further directly send an instruction to the first device, instruct the first device to reduce the size of the data block, reduce the first refresh rate, re-partition the data to be obtained according to the reduced size of the data block, re-generate the two-dimensional code, and display the re-generated two-dimensional code according to the reduced first refresh rate.

In one embodiment of the present application, the data block size may be reduced according to a preset difference value, and the preset difference value may be 50 bits, 80 bits, 100 bits, and the like. For example, assuming that the initial data block size is 300 bits and the preset difference is 50 bits, the reduced data block size may be 250 bits.

In an embodiment of the present application, the size of the data block may be reduced according to a preset ratio, where the preset ratio may be 0.5, 0.6, 0.8, and the like. For example, assuming that the initial data block size is 500 bits and the preset ratio is 0.5, the reduced data block size can be 250 bits.

The manner of reducing the first refresh rate is similar to the above step 202, and is not described herein. Therefore, when the second device is difficult to analyze and obtain all the data to be obtained, the first device can improve the probability that the second device is difficult to analyze and obtain all the data to be obtained by reducing the size of the data block and the first refreshing rate.

For the same image capturing device, limited by the hardware performance of the image capturing device, when the resolution supported by the image capturing device is higher, the supported frame rate is lower, and conversely, when the resolution supported is lower, the supported frame rate is higher.

The manner in which the above-described data block size and first refresh rate are determined is described below with reference to specific embodiments.

In one embodiment of the present application, two factors, i.e., the resolution and the frame rate supported by the image capturing device, may be considered in determining the data block size and the first refresh rate. Specifically, the data block size may be determined according to a resolution in the maximum parameter pair, and the first data refresh rate may be determined according to a frame rate in the maximum parameter pair. Wherein the maximum parameter pair is: the parameter pair with the maximum data collection amount in unit time corresponding to the parameter pair supported by the image collection device comprises: one resolution and one frame rate. The specific manner of determining the data block and the first refresh rate according to the resolution and the frame rate supported by the image capturing device can be seen in the following embodiments, which will not be described in detail here.

In an embodiment of the present application, a correspondence between a resolution supported by the image capturing device and a size of the data block may be preset. After obtaining the resolution supported by the image capturing device of the second device, the size of the data block corresponding to the resolution may be determined in the above correspondence.

In an embodiment of the present application, a ratio relationship between the first refresh rate and a frame rate supported by the image capturing device may be preset. For example, the above ratio relationship may be 0.4, 0.5, 0.6, etc. After obtaining the frame rate supported by the image capturing device of the second device, the magnitude of the first refresh rate may be determined using the above ratio relationship. Assuming that the frame rate supported by the image capturing device is 120fps and the preset ratio relationship is 0.5, it can be determined that the first refresh rate is 60fps.

Referring to fig. 4, fig. 4 is a schematic flowchart of a data obtaining method provided in this embodiment, where the method is applied to a second device, and includes the following steps 401 to 403:

step 401, acquiring an image of a two-dimensional code displayed by a first device according to a first refresh rate.

Each two-dimensional code carries a data block and a serial number of the data block in data to be obtained of the second device, the data block is obtained by the first device by partitioning the data to be obtained according to the size of the data block, and the size of the data block and the first refresh rate are determined according to the resolution and the frame rate supported by an image acquisition device of the second device.

Specifically, the second device may acquire the two-dimensional code displayed by the first device by using an image acquisition device, so as to obtain a two-dimensional code image.

According to the embodiment of the application, after the two-dimensional code image is acquired by the second equipment, the two-dimensional code image can be preprocessed, including rotating, stretching, zooming, cutting and the like, to obtain the two-dimensional code image with the positive direction and no rotation angle of the two-dimensional code, so that the second equipment can analyze the two-dimensional code image conveniently.

According to the embodiment of the application, the second device can identify the image after acquiring the image, judge whether the image contains the two-dimensional code, and discard the image if the image does not contain the two-dimensional code, so that the image which does not contain the two-dimensional code does not need to be analyzed, and the analysis resource can be saved.

Step 402, analyzing the two-dimensional codes in the acquired image to obtain data blocks carried by each two-dimensional code and serial numbers of the data blocks.

Specifically, the second device may sequentially analyze the acquired two-dimensional code images to obtain the data blocks and the serial numbers carried by each two-dimensional code.

And 403, splicing the data blocks according to the serial numbers of the data blocks to obtain spliced data.

Specifically, the second device may splice the data blocks according to an order that the sequence numbers increase from small to large, so as to obtain spliced data.

When the scheme provided by the embodiment is applied to data acquisition, the second device can acquire the image of the two-dimensional code displayed by the first device according to the first refresh rate, analyze the two-dimensional code in the acquired image, acquire the data blocks carried by each two-dimensional code and the serial numbers of the data blocks, and splice each data block according to the serial numbers of each data block, thereby acquiring the spliced data. Therefore, on one hand, the second device does not need to establish network connection with the first device, and obtains the data to be obtained in a mode of acquiring the two-dimensional code displayed by the first device. Thus, even in the case that the network connection between the first device and the second device is difficult to establish, the second device can obtain the desired data by applying the scheme provided by the above embodiment.

On the other hand, the refresh rate of the two-dimensional codes displayed by the first device and the size of the data block carried by each two-dimensional code are determined according to the resolution and the frame rate supported by the image acquisition device of the second device, so that when the first device transmits data, the performance of the second device for acquiring the data can be fully utilized, and the data transmission efficiency is improved.

Referring to fig. 5, fig. 5 is a schematic flowchart of a display parameter determination method according to an embodiment of the present application, including the following steps 501 to 503:

and step 501, obtaining each group of parameter pairs supported by the image acquisition device.

Wherein each parameter pair comprises: one resolution and one frame rate.

For the same image acquisition device, limited by the amount of data that can be acquired by the image acquisition device per unit time, when the resolution supported by the image acquisition device is higher, it means that the amount of data that can be acquired by the image acquisition device in a single frame of image is higher, so that the supported frame rate is lower, that is, the number of frames of images that can be acquired by the image acquisition device per unit time is lower. Conversely, the lower the supported resolution is, the less the data amount obtained by the image capturing device in a single frame of image is, so the higher the supported frame rate is, that is, the more the number of frames of image captured by the image capturing device per unit time is.

In view of this, each resolution supported by the image capturing device does not form a parameter pair with each frame rate supported, but only forms a parameter pair with a part of the supported frame rates on the premise of considering the hardware performance of the image capturing device, and each formed parameter pair satisfies the hardware requirement of the image capturing device.

The image capture device of the second device may typically support multiple parameter pairs, such as 1280 × 720 (120 fps), 1920 × 1080 (60 fps), 4096 × 2160 (30 fps). Taking 1280 × 720 (120 fps) as an example, the parameter pair represents that the frame rate supported by the image acquisition device is 120fps under the condition that the resolution is 1280 × 720.

In an embodiment of the application, the second device may detect its own image capture device, and directly obtain each supported set of parameter pairs; and determining each group of parameter pairs supported by the image acquisition device according to the model of the image acquisition device in the corresponding relation between the preset equipment model and the supported parameter pairs.

Step 502, determining the parameter pair with the maximum data collection amount in unit time corresponding to each group of parameter pairs as the maximum parameter pair.

The data quantity acquired by each parameter pair in unit time is as follows: the data volume carried in the two-dimensional code image collected by the image collecting device in the unit time of the parameter pair can be obtained by calculating the product of the number of the two-dimensional code images collected by the image collecting device in the unit time and the size of the data block carried in each two-dimensional code. The larger the product is, the larger the data quantity acquired by the parameter in unit time by the lower image acquisition device is; the smaller the above product is, the smaller the parameter is to the acquired data amount of the lower image acquisition device per unit time.

For example, assuming that when the parameter pair of the image pickup device is 1280 × 720 (120 fps), the determined data block size is 300 bits, and the first refresh rate is 60fps, the amount of data picked up by the image pickup device per unit time by the parameter pair may be calculated to be 18000 bits.

Specifically, the data amount acquired in unit time corresponding to each parameter pair may be calculated, and then the parameter pair with the largest data amount acquired in unit time corresponding to each parameter pair may be found out from the data amounts, and used as the largest parameter pair.

Step 503, determining the size of the data block according to the resolution in the maximum parameter pair, and determining the first refresh rate according to the frame rate in the maximum parameter pair.

The size of the data block and the first refreshing rate are determined, the two-dimensional codes are displayed by the first equipment according to the display parameters, the data acquisition performance of the second equipment can be fully utilized under the condition that the second equipment can better acquire and analyze each two-dimensional code image, and the data acquisition efficiency can be improved.

In an embodiment of the present application, each two-dimensional code may further carry a total amount, where the total amount is: the first device divides the data to be obtained into blocks to obtain the number of data blocks.

In this way, when the two-dimensional code image is analyzed in the step 402, whether all data blocks in the data to be obtained are obtained can be determined according to the total amount.

In an embodiment of the application, the second device can analyze the two-dimensional codes in the acquired images in sequence according to the image acquisition sequence to obtain the data blocks carried by the two-dimensional codes and the serial numbers of the data blocks, and judge whether to complete one round of two-dimensional code analysis according to the serial numbers and the first serial numbers of the analyzed data blocks.

Wherein, the first sequence number is: and analyzing the two-dimensional code in the acquired image to obtain the serial number of the first data block.

Specifically, under the condition that the first device circularly displays the two-dimensional code in a mode of increasing the serial number, and under the condition that the second device obtains the second serial number through analysis, the second device can be considered to complete one round of two-dimensional code analysis. Wherein the second sequence number is the first sequence number minus 1. For example, assuming that the first serial number is 8 and the total number is 10, the first device displays the two-dimensional code in a cycle manner from 1 to 10, and when the second device obtains the serial number 7 through analysis, it may be considered that the second device completes one cycle of two-dimensional code analysis.

If the second device does not finish the two-dimensional code analysis for one round, the next image of the current image can be continuously analyzed; if the second device completes one round of two-dimensional code analysis, whether all data blocks included in the data to be obtained are analyzed or not can be judged according to the number and the total number of the analyzed two-dimensional codes.

Specifically, when the number of the analyzed two-dimensional codes reaches the total number, the second device may be considered to analyze all data blocks included in the data to be obtained; when the number of the analyzed two-dimensional codes does not reach the total number, it may be considered that the second device does not analyze all data blocks included in the data to be obtained.

If the second device has analyzed all the data blocks included in the data to be obtained, step 403 may be executed to splice the data blocks carried by the two-dimensional codes according to the serial numbers of the data blocks, so as to obtain the spliced data.

In an embodiment of the application, if all data blocks included in the data to be obtained are not analyzed, the second device may determine the serial number of the failed data block, so that the first device redisplays the two-dimensional code carrying the serial number of the failed data block, where the serial number of the failed data block includes: and analyzing the serial number of the data block carried by the two-dimensional code in the failed image.

Therefore, the second equipment can acquire and analyze the image of the two-dimensional code redisplayed by the first equipment to obtain the data blocks and the serial numbers, and then all the obtained data blocks are spliced according to the serial numbers by combining the data blocks and the serial numbers obtained before, so that spliced data are obtained.

In an embodiment of the application, if all data blocks included in the to-be-obtained data are not analyzed, the second device may obtain the number of failed data blocks, and if the number is greater than the preset number, the first device may be instructed to reduce the size of the data blocks and the first refresh rate, so that the first device divides the to-be-obtained data into blocks again based on the reduced size of the data blocks, and displays the two-dimensional code carrying the retrieved data blocks based on the reduced first refresh rate. Therefore, the second device can acquire and analyze the image of the two-dimensional code redisplayed by the first device, and data can be obtained.

In an embodiment of the application, since the first device displays the two-dimensional code in a circulating manner, a repeated two-dimensional code image may be generated in the two-dimensional code image acquired by the second device. Thus, when the second device analyzes the two-dimensional code image, the same two-dimensional code image may be analyzed. Therefore, when the image is analyzed, the serial number carried in the two-dimensional code can be analyzed firstly, and if the serial number is found to exist, the data block carried in the two-dimensional code is not analyzed any more, and the next image of the current two-dimensional code image is directly analyzed.

Specifically, the sequence number carried by the two-dimensional code may be obtained first, and when the sequence number obtained by the analysis does not include the sequence number, it is described that the data block corresponding to the sequence number is not obtained, and therefore, the data block carried by the two-dimensional code may be obtained continuously. When the analyzed serial number contains the serial number, the data block corresponding to the serial number is obtained, so that the data block carried by the two-dimensional code is not obtained any more, and the next image of the two-dimensional code image can be analyzed.

In an embodiment of the application, when the first device generates the two-dimensional code, the first device may be arranged in an order of a sequence number before, a total number in, and a data block after, and the sequence number, the total number, and the data block are distinguished by using a preset identifier. Therefore, when the second device analyzes the two-dimensional code, when the second identifier is analyzed, the serial number and the total number are analyzed, at this time, whether the data block is analyzed or not can be judged according to the analyzed serial number, if yes, the analysis is not continued, and if not, the two-dimensional code is continuously analyzed to obtain the data block. Therefore, repeated analysis of the two-dimensional code image is not needed, analysis resources of the second device can be saved, and data acquisition efficiency is improved.

In view of the above situation, if the second device fails to analyze the second identifier to obtain the second identifier, which indicates that the data carried by the two-dimensional code is erroneous, the two-dimensional code is not analyzed any more.

After the data blocks are obtained through analysis, whether the analysis of all the data blocks of the data to be obtained is completed or not can be judged according to the total number, if so, the analysis can be finished, and if not, the analysis can be continued to be carried out on the next image of the two-dimensional code image.

Since some contents in the data obtaining method are similar to those in the data displaying method, details are not described in the data obtaining method embodiment, and reference may be made to the description in the data displaying method embodiment.

Referring to fig. 6, fig. 6 is a schematic flowchart of another data obtaining method provided in the embodiment of the present application, where the method includes:

601, acquiring an image to be detected, judging whether the image contains a two-dimensional code, and if so, executing 602;

step 602, preprocessing the image, including rotating, stretching, zooming, clipping, etc., to obtain a front-side, non-rotating two-dimensional code;

step 603, analyzing a second identifier in data carried by the two-dimensional code in the image, judging whether a serial number of the data block is obtained or not, judging whether the data block with the serial number is not analyzed or not, and if so, executing step 604;

step 604, continuing to analyze the two-dimensional code in the image to obtain the carried data block, storing the sequence number and the data block under the condition of successfully obtaining the data block, and judging whether all the data blocks are analyzed, if so, executing step 605;

and 605, splicing the data blocks according to the sequence numbers to obtain the data to be obtained.

Referring to fig. 7, fig. 7 is a schematic diagram of interaction among a worker, a first device, and a second device provided in the embodiment of the present application, as shown in the figure:

the second equipment determines the size of a data block and a first refreshing rate according to the resolution and the frame rate supported by the image acquisition device, and the data block and the first refreshing rate serve as display parameters and display the display parameters;

the staff inputs the display parameters into the first equipment according to the information displayed by the display device;

after the first equipment obtains the display parameters, the two-dimensional code is displayed according to the size of the data block in the display parameters and the first refreshing rate;

and the second equipment acquires the image of the two-dimensional code displayed by the first equipment and analyzes the acquired two-dimensional code image so as to obtain data.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a data display apparatus provided in an embodiment of the present application, where the apparatus is applied to a first device, and the apparatus includes:

a display parameter obtaining module 801, configured to obtain a data block size and a first refresh rate determined according to a resolution and a frame rate supported by an image capturing device of the second device;

a data blocking module 802, configured to block data to be obtained of the second device according to the size of the data block, so as to obtain each data block;

a two-dimensional code generating module 803, configured to generate, for each data block, a two-dimensional code that carries the data block and a sequence number of the data block in the data to be obtained;

and a two-dimension code display module 804, configured to cyclically display the generated two-dimension codes according to the first refresh rate.

In one embodiment of the present application, the apparatus further comprises:

the two-dimensional code generation module 803 is specifically configured to:

determining a second refresh rate that is lower than the first refresh rate;

In an embodiment of the application, the apparatus further includes a second failure data block display module, configured to:

obtaining a reduced data block size and a reduced first refresh rate, wherein the reduced data block size and the reduced first refresh rate are: under the condition that the number of the failed data blocks is larger than the preset number, reducing the size of the data blocks and the value of a first refresh rate to obtain the size of the data blocks and the first refresh rate, wherein the failed data blocks comprise: and triggering the data blocking module when the obtained data block cannot be analyzed.

When the scheme provided by the embodiment is applied to data display, the first device obtains the size of a data block and a first refresh rate determined according to the resolution and the frame rate supported by the image acquisition device of the second device, blocks the data to be obtained of the second device according to the size of the data block to obtain each data block, generates a two-dimensional code carrying the data block and the serial number of the data block in the data to be obtained for each data block, and circularly displays each generated two-dimensional code according to the first refresh rate. Therefore, when the second device obtains data, the second device can collect the image of the two-dimensional code displayed by the first device according to the first refreshing rate, analyze the two-dimensional code in the collected image, obtain the data blocks carried by each two-dimensional code and the serial numbers of the data blocks, and splice each data block according to the serial numbers of each data block, so as to obtain the spliced data. Therefore, on one hand, the second device does not need to establish network connection with the first device, and obtains the data to be obtained in a mode of collecting the two-dimensional code displayed by the first device. Thus, even in the case that the network connection between the first device and the second device is difficult to establish, the second device can obtain the desired data by applying the scheme provided by the above embodiment.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a data obtaining apparatus provided in an embodiment of the present application, where the apparatus is applied to a second device, and the apparatus includes:

an image acquisition module 901, configured to acquire an image of two-dimensional codes displayed by a first device according to a first refresh rate, where each two-dimensional code carries a data block and a sequence number of the data block in data to be acquired of a second device, where the data block is obtained by the first device blocking the data to be acquired according to a size of the data block, and the size of the data block and the first refresh rate are determined according to a resolution and a frame rate supported by an image acquisition device of the second device;

the two-dimensional code analyzing module 902 is configured to analyze the two-dimensional codes in the acquired image to obtain data blocks carried by the two-dimensional codes and serial numbers of the data blocks;

and the data splicing module 903 is configured to splice the data blocks according to the serial numbers of the data blocks to obtain spliced data.

the two-dimensional code parsing module 902 is specifically configured to:

according to the image acquisition sequence, the two-dimensional codes in the acquired images are analyzed in sequence to obtain the data blocks carried by the two-dimensional codes and the serial numbers of the data blocks, and whether one round of two-dimensional code analysis is completed or not is judged according to the analyzed serial numbers and a first serial number of the data blocks, wherein the first serial number is as follows: analyzing the two-dimensional code in the acquired image to obtain the serial number of a first data block;

In an embodiment of the present application, the apparatus further includes a module for determining a sequence number of a failed data block, configured to:

In an embodiment of the present application, the apparatus further includes a display parameter indicating module configured to:

When the scheme provided by the embodiment is applied to data acquisition, the second device can acquire the image of the two-dimensional code displayed by the first device according to the first refresh rate, analyze the two-dimensional code in the acquired image, acquire the data blocks carried by each two-dimensional code and the serial numbers of the data blocks, and splice each data block according to the serial numbers of each data block, thereby acquiring the spliced data. Therefore, on one hand, the second device does not need to establish network connection with the first device, and obtains the data to be obtained in a mode of collecting the two-dimensional code displayed by the first device. Thus, even in the case that the network connection between the first device and the second device is difficult to establish, the second device can obtain the desired data by applying the scheme provided by the above embodiment.

The embodiment of the present application further provides an electronic device, as shown in fig. 10, including a processor 1001, a communication interface 1002, a memory 1003 and a communication bus 1004, where the processor 1001, the communication interface 1002, and the memory 1003 complete mutual communication through the communication bus 1004,

a memory 1003 for storing a computer program;

the processor 1001 is configured to implement the data display and acquisition method described above when executing the program stored in the memory 1003.

The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the electronic equipment and other equipment.

The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.

The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.

In another embodiment provided by the present application, a computer-readable storage medium is further provided, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of any one of the data displaying and obtaining methods described above.

In yet another embodiment provided by the present application, a computer program product containing instructions is further provided, which when run on a computer, causes the computer to execute any one of the data displaying and obtaining methods in the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, apparatus embodiments, electronic device embodiments, storage medium embodiments, and computer program product embodiments are substantially similar to method embodiments and therefore are described with relative ease, as appropriate with reference to the partial description of the method embodiments.

The above description is only for the preferred embodiment of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A data display method is applied to a first device, and comprises the following steps:

circularly displaying each generated two-dimensional code according to the first refreshing rate;

the method further comprises the following steps: under the condition that the number of the failed data blocks is not greater than the preset number, obtaining a sequence number of the failed data blocks, wherein the sequence number of the failed data blocks comprises: the sequence number of the obtained data block cannot be analyzed; determining a second refresh rate that is lower than the first refresh rate; circularly displaying the two-dimensional code carrying the serial number of the failed data block according to the second refreshing rate;

obtaining a reduced data block size and a reduced first refresh rate, wherein the reduced data block size and the reduced first refresh rate are: under the condition that the number of the failed data blocks is larger than the preset number, reducing the size of the data blocks and the value of a first refresh rate to obtain the size of the data blocks and the first refresh rate, wherein the failed data blocks comprise: data blocks which cannot be obtained by analysis; and returning to the step of blocking the data to be obtained of the second device according to the size of the data block to obtain each data block according to the size of the reduced data block and the reduced first refresh rate.

2. The method of claim 1, wherein after the blocking the data to be obtained of the second device according to the data block size to obtain each data block, the method further comprises:

counting the total number of the obtained data blocks;

3. The method according to claim 1 or 2,

the data block size is determined according to a resolution in a largest parameter pair;

the first refresh rate is determined according to a frame rate in the largest parameter pair;

4. A method for obtaining data, the method being applied to a second device, the method comprising:

splicing the data blocks according to the serial numbers of the data blocks to obtain spliced data;

the method further comprises the following steps:

if all the data blocks included in the data to be obtained are not analyzed, the number of failed data blocks is obtained;

if the number is not greater than the preset number, determining a serial number of a failed data block, so that the first device redisplays the two-dimensional code carrying the serial number of the failed data block at a second refresh rate which is lower than the first refresh rate, wherein the serial number of the failed data block comprises: the sequence number of the obtained data block cannot be analyzed;

5. The method of claim 4, further comprising:

obtaining sets of parameter pairs supported by the image acquisition device, wherein each parameter pair comprises: one resolution and one frame rate;

6. The method of claim 4 or 5, wherein each two-dimensional code further carries a total number, wherein the total number is: the first equipment divides the data to be obtained into blocks to obtain the number of data blocks;

and if the data block is analyzed, executing the step of splicing the data blocks according to the serial numbers of the data blocks to obtain spliced data.

7. A data display apparatus, wherein the apparatus is applied to a first device, the apparatus comprising:

the two-dimensional code display module is used for circularly displaying all the generated two-dimensional codes according to the first refreshing rate;

the apparatus further comprises a first failed data block display module configured to: under the condition that the number of the failed data blocks is not more than the preset number, obtaining a sequence number of the failed data blocks, wherein the sequence number of the failed data blocks comprises: the sequence number of the obtained data block cannot be analyzed; determining a second refresh rate that is lower than the first refresh rate; circularly displaying the two-dimensional code carrying the serial number of the failed data block according to the second refreshing rate;

a second failed data block display module to: obtaining a reduced data block size and a reduced first refresh rate, wherein the reduced data block size and the reduced first refresh rate are: under the condition that the number of the failed data blocks is larger than the preset number, reducing the size of the data blocks and the value of a first refresh rate to obtain the size of the data blocks and the first refresh rate, wherein the failed data blocks comprise: and triggering the data blocking module according to the reduced size of the data block and the reduced first refresh rate if the obtained data block cannot be analyzed.

8. A data obtaining apparatus, wherein the apparatus is applied to a second device, the apparatus comprising:

the data splicing module is used for splicing the data blocks according to the serial numbers of the data blocks to obtain spliced data;

the apparatus further includes a failed data block sequence number determination module configured to: if all the data blocks included in the data to be obtained are not analyzed, obtaining the number of failed data blocks; if the number is not greater than the preset number, determining a serial number of a failed data block, so that the first device redisplays the two-dimensional code carrying the serial number of the failed data block at a second refresh rate lower than the first refresh rate, wherein the serial number of the failed data block comprises: the sequence number of the obtained data block cannot be analyzed;

a display parameter indication module to: if all the data blocks included in the data to be obtained are not analyzed, obtaining the number of failed data blocks; and if the number is larger than the preset number, the first device is instructed to reduce the size of the data block and the first refresh rate, so that the first device blocks the data to be obtained again based on the reduced size of the data block and displays the two-dimensional code carrying the obtained data block again based on the reduced first refresh rate.

9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing the communication between the processor and the memory through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any of claims 1-3 or 4-6 when executing a program stored in the memory.

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 3 or 4 to 6.