A WIFI multi-signal diagram transmission method and device

Abstract

The application discloses a WIFI multi-signal diagram transmission method and device, relates to the technical field of multi-signal diagram transmission, and comprises the following steps: performing contrast diagram transmission processing on common WIFI signal equipment, and acquiring speed frequency band ranking and delay frequency band ranking; acquiring equipment gradient ranking by using a multi-device common analysis method; and distributing frequency bands to the common equipment based on the equipment gradient ranking corresponding to the used available frequency bands; the application is used for solving the problem that, in the prior art, when a large number of devices are connected to WIFI and in order to prevent frequency band congestion, the frequency bands in the WIFI need to be effectively distributed, the unoccupied frequency bands in the WIFI cannot be reasonably distributed based on the adaptation state of the devices connected to the WIFI and the frequency bands in the WIFI, and the data transmission efficiency between devices is affected.

Description

Technical Field

[0001] This invention relates to the field of multi-signal image transmission technology, specifically to a WIFI multi-signal image transmission method and apparatus. Background Technology

[0002] Multi-channel image transmission is a technology that uses multiple independent communication channels to transmit images, mainly used to improve transmission efficiency, anti-interference ability, and image quality stability. WiFi multi-signal image transmission is a device that uses Wi-Fi technology to achieve real-time transmission of multiple images. Its core functions mainly include multi-channel transmission, multi-channel avoidance, and H.625 encoding. Its application scenarios mainly include film and television shooting, outdoor live broadcasting, and drone applications.

[0003] Existing methods for multi-signal image transmission in Wi-Fi typically focus on improving data transmission reliability. For example, they extract channel features, calculate the beam pattern of phased array antennas to obtain the corresponding radiation pattern, and then analyze the network topology to obtain a Wi-Fi node distribution map, thereby improving the reliability of Wi-Fi data transmission. While this improvement method can enhance data transmission reliability by obtaining the Wi-Fi node distribution map, it fails to adequately allocate unused frequency bands based on the compatibility between the connected devices and the Wi-Fi frequency bands when there are many devices connected to the Wi-Fi network and frequency bands need to be effectively allocated to prevent congestion. This prevents the most efficient multi-signal image transmission and negatively impacts data transmission efficiency between devices. For instance, patent application CN119485573A discloses... A data transmission method, apparatus, and device based on a portable WiFi network are disclosed. This scheme involves analyzing the network topology nodes using antenna beam configuration parameters to obtain a portable WiFi node distribution map. The map is then improved through on-demand routing calculations to obtain an initial routing topology, thereby enhancing the reliability of data transmission in the portable WiFi network. Other improvements for multi-signal image transmission in WiFi typically focus on WiFi communication equipment. These improvements fail to address the issue of insufficient frequency band allocation when multiple devices are connected to the WiFi network, hindering efficient frequency band allocation to prevent congestion. Existing improvements cannot rationally allocate unused frequency bands based on the compatibility between the connected devices and the WiFi's frequency bands. This results in multi-signal image transmission being unable to achieve optimal data transmission efficiency, impacting data transmission efficiency between devices. Therefore, it is necessary to improve existing multi-signal image transmission methods for WiFi. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in the prior art by proposing a WIFI multi-signal image transmission method and apparatus. This addresses the issue that in existing WIFI multi-signal image transmission methods, when there are many devices connected to the WIFI and frequency bands need to be effectively allocated to prevent frequency band congestion, existing improvements cannot reasonably allocate unoccupied frequency bands in the WIFI based on the compatibility status between the connected devices and the frequency bands within the WIFI. This results in the inability to perform multi-signal image transmission with the most efficient data transmission, thus affecting the data transmission efficiency between devices.

[0005] To achieve the above objectives, in a first aspect, this application provides a WIFI multi-signal image transmission method, comprising the following steps: Multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal are marked as available frequency bands and shared devices, respectively. After marking, each shared device is processed by comparison and image transmission. Based on the processing results, the speed frequency band ranking and latency frequency band ranking of each shared device are obtained. Based on the speed band ranking and delay band ranking of each shared device, a multi-device sharing analysis method is used for analysis, and the device gradient ranking corresponding to each available frequency band is obtained based on the analysis results. When using available WIFI frequency bands to transmit images to shared devices, frequency bands are allocated to shared devices based on the device gradient ranking corresponding to the available frequency bands already used.

[0006] Furthermore, multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal are respectively marked as available frequency bands and shared devices. After marking, each shared device is subjected to image transmission processing. Based on the processing results, the speed frequency band ranking and latency frequency band ranking of each shared device are obtained, including: The multiple permitted frequency bands in the WIFI signal are respectively denoted as available frequency band KP1 to available frequency band KP. t When performing multi-signal image transmission, the multiple devices using WIFI signals are respectively referred to as shared devices GS1 to GS1. r ; For any shared device GS e For the shared equipment GS respectively e Perform image transmission comparison processing and obtain the shared device GS based on the processing results. e For each available frequency band, the velocity reference area, velocity reference discrete value, delay reference area, and delay reference discrete value are as follows: The velocity reference area, velocity reference dispersion, delay reference area, and delay reference dispersion for all available frequency bands are analyzed, and the shared equipment GS is obtained based on the analysis results. eThe speed band ranking and delay band ranking, where e is a positive integer less than or equal to r and greater than or equal to 1.

[0007] Furthermore, the image transmission processing includes: Connect the shared device being processed to the WIFI signal, and label the device transmitting images with the shared device as an auxiliary transmission device; for any available frequency band KP w Connect shared equipment and auxiliary transmission equipment to the available frequency band KP. w Under the condition of keeping environmental factors the same, the same video data is used to perform analog and digital image transmission to the shared equipment and auxiliary transmission equipment respectively. The equipment that acquires images in the shared equipment and auxiliary transmission equipment is used as the transmission starting point for analog and digital image transmission, and the equipment that receives images in the shared equipment and auxiliary transmission equipment is used as the transmission endpoint for analog and digital image transmission. The environmental factors consist of electromagnetic environment, human body and building.

[0008] Furthermore, the image transmission processing also includes: The transmission data obtained from analog image transmission and digital image transmission are respectively denoted as analog data and digital data. The transmission data includes data corresponding to the data transmission speed and data corresponding to the image transmission delay, and the image transmission delay is the wireless transmission delay. Establish a Cartesian coordinate system, denoted as the image transmission comparison coordinate system. The unit of the X-axis of the image transmission comparison coordinate system is min, and the unit of the Y-axis is Gbps or ms. When the unit of the Y-axis is Gbps, based on the data transmission speed between the public equipment and the auxiliary transmission equipment in the analog and digital data, plot the analog speed curve and the digital speed curve in the image transmission comparison coordinate system. When the unit of the Y-axis is ms, based on the image transmission delay between the public equipment and the auxiliary transmission equipment in the analog and digital data, plot the analog delay curve and the digital delay curve in the image transmission comparison coordinate system.

[0009] Furthermore, the image transmission processing also includes: For any point α in the simulated velocity curve, the x-coordinate X1 and y-coordinate Y1 are used to mark the y-coordinate of the point with x-coordinate X1 in the digital velocity curve as Y2, the value of Y2 minus Y1 is recorded as Y3, and the point with x-coordinate X1 and y-coordinate Y3 is recorded as the velocity reference point of point α. Obtain the curve fitted by the speed reference points corresponding to all points in the simulated speed curve, and record it as the speed reference curve; for any point β in the digital delay curve: based on the processing method of obtaining the speed reference points of point α in the simulated speed curve, obtain the point corresponding to point β, and record it as the delay reference point; obtain the curve fitted by the delay reference points corresponding to all points in the digital delay curve, and record it as the delay reference curve.

[0010] Furthermore, the image transmission processing also includes: The area between the velocity comparison curve and the X-axis is denoted as the usable frequency band KP. w The velocity-to-reference area; the area between the delay-to-reference curve and the X-axis is denoted as the usable frequency band KP. w The delayed control area; the ordinates of all peaks and troughs in the velocity control curve are denoted as n1 to n... c The ordinates of all peaks and troughs in the delayed control curve are denoted as m1 to m2, respectively. z ; The velocity and delay discrete values ​​for the available frequency band KPw are obtained using a comparative discretization algorithm. The comparative discretization algorithm includes: Where b is c, i is a positive integer less than or equal to c and greater than or equal to 1, and Q i For n i Q sq For n1 to n c When the average value of b is z, the value of F is the velocity relative to the discrete value; when the value of b is z, i is a positive integer less than or equal to z and greater than or equal to 1, and Q i For m i Q sq From m1 to m z When the average value is , F is the discrete value of the delayed control.

[0011] Furthermore, the image transmission processing also includes: The speed comparison area and speed comparison discrete value of the shared device after it accesses all available frequency bands are obtained. Based on all speed comparison areas, the speed area numbers of all available frequency bands are sequentially recorded from 1 to t in ascending order. Based on all speed comparison discrete values, the speed discrete numbers of all available frequency bands are sequentially recorded from 1 to t in ascending order. For any available frequency band KP w Available frequency band KP w The sum of the velocity area number and the velocity discrete number is denoted as the available frequency band KP. w Speed ​​determination number; Based on the speed determination numbers of all available frequency bands from smallest to largest, use the 1st to the tth number to rank all available frequency bands, and record the resulting ranking as the speed frequency band ranking; Based on the method of obtaining the velocity band ranking by velocity reference area and velocity reference discrete value, the delay band ranking corresponding to the delay reference area and delay reference discrete value is obtained.

[0012] Furthermore, the multi-device shared analysis method includes: For any available frequency band KP wAvailable frequency band KP w The sum of the values ​​corresponding to the rankings in both the speed and delay bands for each public utility is denoted as the available frequency band KP. w For each public utility, a priority value is assigned. Based on this priority value from smallest to largest, all public utilities are ranked from 1st to rth, and the resulting ranking is recorded as the available frequency band KP. w The device tier ranking.

[0013] Furthermore, when using available WIFI frequency bands to transmit images to shared devices, frequency band allocation for shared devices is performed based on the device tier ranking corresponding to the used available frequency bands, including: When using available WIFI frequency bands to transmit images to shared devices, for any unused shared device: obtain the ranking of the shared device in the device gradient ranking of all available frequency bands, and record the unused available frequency band with the lowest ranking as the frequency band to be allocated to the shared device.

[0014] Secondly, this application also provides a WIFI multi-signal image transmission device, including a frequency band device analysis module, a frequency band device application module, and a real-time image transmission allocation module; The frequency band device analysis module is used to mark multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal as available frequency bands and shared devices, respectively. After marking, it performs image transmission processing on each shared device. Based on the processing results, it obtains the speed frequency band ranking and delay frequency band ranking of each shared device. The frequency band device application module is used to analyze the speed band ranking and delay band ranking of each shared device using a multi-device shared analysis method, and obtain the device gradient ranking corresponding to each available frequency band based on the analysis results. The real-time image transmission allocation module is used to allocate frequency bands to shared devices when using available WIFI frequency bands for image transmission to shared devices, based on the device gradient ranking corresponding to the available frequency bands already used.

[0015] The beneficial effects of this invention are as follows: This application first marks multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal as available frequency bands and shared devices, respectively. After marking, each shared device is subjected to comparison and transmission processing. Based on the processing results, the speed frequency band ranking and latency frequency band ranking of each shared device are obtained. The advantage of this is that by performing comparison and transmission processing on the shared devices and obtaining the speed frequency band ranking and latency frequency band ranking, it is possible to obtain the ranking of data transmission speed and the ranking of data transmission latency when the shared device uses each frequency band in the WIFI after accessing the WIFI. This helps to obtain the frequency band with the highest transmission speed and the lowest latency among the unused frequency bands when allocating frequency bands for shared devices in the future, based on the speed frequency band ranking and latency frequency band ranking. This enables the reasonable allocation of unused frequency bands in the WIFI to achieve multi-signal transmission with the most efficient data transmission state. This application also uses a multi-device sharing analysis method based on the speed band ranking and latency band ranking of each shared device, and obtains the device gradient ranking corresponding to each available frequency band based on the analysis results. Finally, when using the available frequency bands of WIFI to transmit images to the shared devices, the frequency bands of the shared devices are allocated based on the device gradient ranking corresponding to the used available frequency bands. The advantage of this is that by obtaining the device gradient ranking corresponding to each available frequency band based on the speed band ranking and latency band ranking, the efficiency of frequency band allocation for shared devices can be improved. That is, the frequency bands allocated to shared devices can be directly selected from the existing unoccupied frequency bands, which improves the efficiency of frequency band selection and the data transmission efficiency of devices after accessing the frequency band when there are many devices connected to WIFI and frequency band congestion needs to be prevented. Attached Figure Description

[0016] Figure 1 This is a schematic block diagram of the device of the present invention; Figure 2 This is a flowchart of the steps of the method of the present invention; Figure 3 This is a schematic diagram of the image transmission reference coordinate system of the present invention; Figure 4 This is a schematic diagram illustrating the acquisition of the velocity comparison curve according to the present invention; Figure 5 This is a schematic diagram of the electronic device of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1, please refer to Figure 1 As shown, this application provides a WIFI multi-signal image transmission device, including a frequency band device analysis module, a frequency band device application module, and a real-time image transmission allocation module; The frequency band device analysis module is used to mark multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal as available frequency bands and shared devices, respectively. After marking, it performs image transmission processing on each shared device. Based on the processing results, it obtains the speed frequency band ranking and delay frequency band ranking of each shared device. The frequency band device analysis module includes a frequency band device analysis unit, which is configured with frequency band device analysis strategies. These strategies include: The multiple permitted frequency bands in the WIFI signal are respectively denoted as available frequency band KP1 to available frequency band KP. t When performing multi-signal image transmission, the multiple devices using WIFI signals are respectively referred to as shared devices GS1 to GS1. r ; For any shared device GS e For the shared equipment GS respectively e Perform image transmission comparison processing and obtain the shared device GS based on the processing results. e For each available frequency band, the velocity reference area, velocity reference discrete value, delay reference area, and delay reference discrete value are as follows: In specific implementation, for example, if the number of available frequency bands is 3 during a data analysis, then for any shared device, after the image transmission processing, the speed comparison area, speed comparison discrete value, delay comparison area, and delay comparison discrete value of the shared device and the 3 available frequency bands should be obtained respectively. In this embodiment, the available frequency bands may include 2.4 GHz, 5 GHz, and 6 GHz, and the available frequency bands can be set according to the frequency bands actually supported by WIFI. In this embodiment, the encoding format of the frequency band during transmission is h.264, and the bandwidth is H264. The image transmission format during image transmission in analog and digital image transmission is HDMI, and it is a pure digital transmission system. The velocity reference area, velocity reference dispersion, delay reference area, and delay reference dispersion for all available frequency bands are analyzed, and the shared equipment GS is obtained based on the analysis results.e The speed band ranking and delay band ranking, where e is a positive integer less than or equal to r and greater than or equal to 1.

[0019] Image transmission processing includes: connecting the shared device to the WIFI signal, and labeling the device transmitting images with the shared device as an auxiliary transmission device; for any available frequency band KP w Connect shared equipment and auxiliary transmission equipment to the available frequency band KP. w Under the condition of keeping environmental factors the same, the same video data is used to perform analog and digital image transmission to the shared equipment and auxiliary transmission equipment respectively. The equipment that acquires images in the shared equipment and auxiliary transmission equipment is used as the transmission starting point of analog and digital image transmission, and the equipment that receives images in the shared equipment and auxiliary transmission equipment is used as the transmission endpoint of analog and digital image transmission. The environmental factors consist of electromagnetic environment, human body and building. In the specific implementation process, because the transmission of WIFI signals is affected by electromagnetic intensity, human body, and buildings such as cement walls, it is necessary to ensure that environmental factors are consistent when performing analog and digital image transmission to prevent external factors from affecting the data transmission during image transmission and thus affecting subsequent data analysis. The transmission data obtained from analog image transmission and digital image transmission are respectively denoted as analog data and digital data. The transmission data includes data corresponding to the data transmission speed and data corresponding to the image transmission delay, and the image transmission delay is the wireless transmission delay. In the specific implementation process, since this embodiment directly uses video data for image transmission, and the actual image transmission delay includes the delay when acquiring video data, the image transmission delay in this embodiment only refers to the wireless transmission delay, that is, the delay when video data is sent from the image acquisition device to the image reception device. Establish a Cartesian coordinate system, denoted as the image transmission comparison coordinate system. The X-axis of the image transmission comparison coordinate system is in min, and the Y-axis is in Gbps or ms. When the Y-axis is in Gbps, based on the data transmission speed between the common equipment and auxiliary transmission equipment in the analog and digital data, plot the analog speed curve and the digital speed curve in the image transmission comparison coordinate system. When the Y-axis is in ms, based on the image transmission delay between the common equipment and auxiliary transmission equipment in the analog and digital data, plot the analog delay curve and the digital delay curve in the image transmission comparison coordinate system. For any point α in the simulated velocity curve, the x-coordinate X1 and y-coordinate Y1 are used to mark the y-coordinate of the point with x-coordinate X1 in the digital velocity curve as Y2, the value of Y2 minus Y1 is recorded as Y3, and the point with x-coordinate X1 and y-coordinate Y3 is recorded as the velocity reference point of point α. In the specific implementation process, for example, during a data analysis, the obtained simulated speed curve and digital speed curve are as follows: Figure 3 As shown in SQ1 and SQ2, the velocity reference curve obtained by obtaining velocity reference points and fitting all velocity reference points is shown in the figure. Figure 4 As shown in SD; In this embodiment, considering the actual transmission speed and transmission delay of analog and digital image transmission, under the same conditions, the minimum bandwidth of digital image transmission is 0.1 Gbps, which is 1.25 times that of the upper limit of analog image transmission of 0.08 Gbps. The difference in high-end devices can reach 60 times. Therefore, it is assumed that the data transmission speed of analog image transmission is less than that of digital image transmission, and the transmission delay of analog image transmission is less than that of digital image transmission. Therefore, the speed comparison curve and the delay comparison curve obtained from this embodiment are both curves in the first quadrant. In the actual implementation process, if the relationship between the data transmission speed and transmission delay of the actual analog and digital image transmission is inconsistent with the above description, the actual situation shall prevail. Obtain the curve fitted by the velocity reference points corresponding to all points in the simulated velocity curve, and record it as the velocity reference curve; for any point β in the digital delay curve: based on the processing method of obtaining the velocity reference points of point α in the simulated velocity curve, obtain the point corresponding to point β, and record it as the delay reference point; obtain the curve fitted by the delay reference points corresponding to all points in the digital delay curve, and record it as the delay reference curve. The area between the velocity comparison curve and the X-axis is denoted as the usable frequency band KP. w The velocity-to-reference area; the area between the delay-to-reference curve and the X-axis is denoted as the usable frequency band KP. w The delayed control area; the ordinates of all peaks and troughs in the velocity control curve are denoted as n1 to n... c The ordinates of all peaks and troughs in the delayed control curve are denoted as m1 to m2, respectively. z ; In the specific implementation process, if the abscissa of the leftmost point of the velocity comparison curve is δ, then the velocity comparison area is the area corresponding to the X-axis, the velocity comparison curve, the Y-axis, and the region between X=δ. In this embodiment, the smaller the velocity comparison area and the delay comparison area, the more it indicates that the shared device is accessing the available frequency band KP. w Subsequently, the smaller the difference in transmission speed and latency between analog and digital image transmission, the more likely it is to be compatible with the available frequency band KP. w Afterwards, it allows for more freedom in changing the image transmission method of shared equipment, improving image transmission efficiency in practical applications; The velocity and delay discrete values ​​for the available frequency band KPw are obtained using a comparative discretization algorithm. The comparative discretization algorithm includes: Where b is c, i is a positive integer less than or equal to c and greater than or equal to 1, and Q i For n i Q sq For n1 to n c When the average value of b is z, the value of F is the velocity relative to the discrete value; when the value of b is z, i is a positive integer less than or equal to z and greater than or equal to 1, and Q i For m i Q sq From m1 to m z When the average value is , F is the discrete value of the delayed control; In the specific implementation process, for example, during a data analysis, the obtained speed comparison curve is as follows: Figure 4 As shown in SD, analysis reveals that the value of c is 5, and n1 to n5 are 0.4, 1, 1.05, 1.4, and 1.8 respectively. Therefore, calculation shows that Q... sq The value is 1.13, and the speed comparison dispersion value is 0.2076. In this embodiment, the smaller the speed comparison dispersion value and the delay comparison dispersion value, the more stable the changes in the speed comparison curve and the delay comparison curve are, that is, the shared equipment is accessing the available frequency band KP. w Afterwards, both analog and digital video transmission can switch in a relatively stable state. However, if the relative discrete value and the delay relative discrete value are larger, then contrary to the above description, the shared equipment cannot effectively switch between analog and digital video transmission, thus affecting the actual video transmission efficiency. The speed comparison area and speed comparison discrete value of the shared device after it accesses all available frequency bands are obtained. Based on all speed comparison areas, the speed area numbers of all available frequency bands are sequentially recorded from 1 to t in ascending order. Based on all speed comparison discrete values, the speed discrete numbers of all available frequency bands are sequentially recorded from 1 to t in ascending order. For any available frequency band KP w Available frequency band KP w The sum of the velocity area number and the velocity discrete number is denoted as the available frequency band KP. w Speed ​​determination number; Based on the speed determination numbers of all available frequency bands from smallest to largest, use the 1st to the tth number to rank all available frequency bands, and record the resulting ranking as the speed frequency band ranking; In specific implementation processes, such as during a data analysis, the frequency band KP can be used. w If the velocity area number and velocity discrete number are 2 and 3 respectively, then the usable frequency band KP w The speed determination number is 5; Based on the method of obtaining the velocity band ranking by velocity reference area and velocity reference discrete value, the delay band ranking corresponding to the delay reference area and delay reference discrete value is obtained.

[0020] The frequency band device application module is used to analyze the speed band ranking and delay band ranking of each shared device using a multi-device shared analysis method, and obtain the device gradient ranking corresponding to each available frequency band based on the analysis results. The frequency band equipment application module includes a frequency band equipment application unit. This unit is configured with a multi-device shared analysis method, which includes: for any available frequency band KP... w Available frequency band KP w The sum of the values ​​corresponding to the rankings in both the speed and delay bands for each public utility is denoted as the available frequency band KP. w For each public utility, a priority value is assigned. Based on this priority value from smallest to largest, all public utilities are ranked from 1st to rth, and the resulting ranking is recorded as the available frequency band KP. w Equipment tier ranking; The real-time image transmission allocation module is used to allocate frequency bands to shared devices based on the device gradient ranking corresponding to the available frequency bands when using the available frequency bands of WIFI to transmit images to shared devices. The real-time image transmission distribution module includes a real-time image transmission distribution unit, which is configured with a real-time image transmission distribution strategy. The real-time image transmission distribution strategy includes: When using available WIFI frequency bands to transmit images to shared devices, for any unused shared device: obtain the ranking of the shared device in the device gradient ranking of all available frequency bands, and record the unused available frequency band with the lowest ranking as the frequency band to be allocated to the shared device; In the specific implementation process, if multiple devices are allowed to access the same frequency band, the "unoccupied available frequency band" can be redefined. That is, the available frequency band that is not full when the number of devices allowed to access it is still recorded as an unoccupied available frequency band. For example, if 5 devices are allowed to access an available frequency band, if the number of devices accessing the available frequency band is less than or equal to 4, the available frequency band can still be recorded as an "unoccupied available frequency band".

[0021] Example 2, please refer to Figure 2 As shown, this application also provides a WIFI multi-signal image transmission method, including the following steps: Step S1: Mark multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal as available frequency bands and shared devices respectively, and perform image transmission processing on each shared device after marking; obtain the speed frequency band ranking and latency frequency band ranking of each shared device based on the processing results; Step S1 includes: Step S101, recording the multiple allowed frequency bands in the WIFI signal as available frequency bands KP1 to KP1 respectively. t When performing multi-signal image transmission, the multiple devices using WIFI signals are respectively referred to as shared devices GS1 to GS1. r ; Step S102, for any shared device GS e For the shared equipment GS respectively e Perform image transmission comparison processing and obtain the shared device GS based on the processing results. e For each available frequency band, the velocity reference area, velocity reference discrete value, delay reference area, and delay reference discrete value are as follows: Step S103: Analyze the velocity reference area, velocity reference discrete value, delay reference area, and delay reference discrete value corresponding to all available frequency bands, and obtain the shared equipment GS based on the analysis results. e The speed band ranking and delay band ranking, where e is a positive integer less than or equal to r and greater than or equal to 1.

[0022] Step S104, the image transmission processing includes: Step S1041, connecting the shared device to the WIFI signal, and recording the device transmitting images with the shared device as an auxiliary transmission device; for any available frequency band KP w Connect shared equipment and auxiliary transmission equipment to the available frequency band KP. w Under the condition of keeping environmental factors the same, the same video data is used to perform analog and digital image transmission to the shared equipment and auxiliary transmission equipment respectively. The equipment that acquires images in the shared equipment and auxiliary transmission equipment is used as the transmission starting point of analog and digital image transmission, and the equipment that receives images in the shared equipment and auxiliary transmission equipment is used as the transmission endpoint of analog and digital image transmission. The environmental factors consist of electromagnetic environment, human body and building. Step S1042: The transmission data obtained from analog image transmission and digital image transmission are respectively denoted as analog data and digital data. The transmission data includes data corresponding to the data transmission speed and data corresponding to the image transmission delay, and the image transmission delay is the wireless transmission delay. Step S1043: Establish a Cartesian coordinate system, denoted as the image transmission comparison coordinate system. The unit of the X-axis of the image transmission comparison coordinate system is min, and the unit of the Y-axis is Gbps or ms. When the unit of the Y-axis is Gbps, based on the data transmission speed between the common equipment and the auxiliary transmission equipment in the analog and digital data, plot the analog speed curve and the digital speed curve in the image transmission comparison coordinate system. When the unit of the Y-axis is ms, based on the image transmission delay between the common equipment and the auxiliary transmission equipment in the analog and digital data, plot the analog delay curve and the digital delay curve in the image transmission comparison coordinate system. Step S1044: For any point α in the simulated velocity curve, the x-coordinate X1 and y-coordinate Y1 are used to mark the y-coordinate of the point with x-coordinate X1 in the digital velocity curve as Y2, the value of Y2 minus Y1 is recorded as Y3, and the point with x-coordinate X1 and y-coordinate Y3 is recorded as the velocity reference point of point α. Step S1045: Obtain the curve fitted by the speed reference points corresponding to all points in the simulated speed curve, and record it as the speed reference curve; For any point β in the digital delay curve: Based on the processing method of obtaining the speed reference points of point α in the simulated speed curve, obtain the point corresponding to point β, and record it as the delay reference point; Obtain the curve fitted by the delay reference points corresponding to all points in the digital delay curve, and record it as the delay reference curve. Step S1046: Record the area between the velocity comparison curve and the X-axis as the usable frequency band KP. w The velocity-to-reference area; the area between the delay-to-reference curve and the X-axis is denoted as the usable frequency band KP. w The delayed control area; the ordinates of all peaks and troughs in the velocity control curve are denoted as n1 to n... c The ordinates of all peaks and troughs in the delayed control curve are denoted as m1 to m2, respectively. z ; Step S1047: Use a comparison discretization algorithm to obtain the speed comparison discretization value and the delay comparison discretization value of the available frequency band KPw, respectively. The comparison discretization algorithm includes: Where b is c, i is a positive integer less than or equal to c and greater than or equal to 1, and Q i For n i Q sq For n1 to n c When the average value of b is z, the value of F is the velocity relative to the discrete value; when the value of b is z, i is a positive integer less than or equal to z and greater than or equal to 1, and Q i For m i Q sq From m1 to m z When the average value is , F is the discrete value of the delayed control; Step S1048: Obtain the speed comparison area and speed comparison discrete value of the shared device after it accesses all available frequency bands, and number the speed areas of all available frequency bands from small to large based on all speed comparison areas, and number them from 1 to t. Also, number the speed discrete values ​​of all available frequency bands from small to large based on all speed comparison discrete values, and number them from 1 to t. Step S1049, for any available frequency band KP w Available frequency band KP w The sum of the velocity area number and the velocity discrete number is denoted as the available frequency band KP. w Speed ​​determination number; Based on the speed determination numbers of all available frequency bands from smallest to largest, use the 1st to the tth number to rank all available frequency bands, and record the resulting ranking as the speed frequency band ranking; Based on the method of obtaining the velocity band ranking by velocity reference area and velocity reference discrete value, the delay band ranking corresponding to the delay reference area and delay reference discrete value is obtained.

[0023] Step S2: Based on the speed band ranking and delay band ranking of each shared device, the multi-device shared analysis method is used for analysis, and the device gradient ranking corresponding to each available frequency band is obtained based on the analysis results. The multi-device shared analysis method includes: for any available frequency band KP w Available frequency band KP w The sum of the values ​​corresponding to the rankings in both the speed and delay bands for each public utility is denoted as the available frequency band KP. w For each public utility, a priority value is assigned. Based on this priority value from smallest to largest, all public utilities are ranked from 1st to rth, and the resulting ranking is recorded as the available frequency band KP. w The device tier ranking.

[0024] Step S3: When using the available frequency bands of WIFI to transmit images to shared devices, frequency bands are allocated to shared devices based on the device gradient ranking corresponding to the used available frequency bands. Step S3 includes: When using the available frequency bands of WIFI to transmit images to the shared device, for any unused shared device: obtain the ranking of the shared device in the device gradient ranking of all available frequency bands, and record the unused and lowest-ranked available frequency band as the frequency band to be allocated to the shared device.

[0025] Example 3, please refer to Figure 5 As shown, Figure 5A schematic diagram of an electronic device is provided, which may include a processor, a communication interface, a memory, and a communication bus. The processor, communication interface, and memory communicate with each other via the communication bus. The memory stores computer-readable instructions, and the processor can call these instructions. When the processor executes a computer-readable instruction, it performs steps similar to those in a WIFI multi-signal image transmission method to achieve the following functions: First, multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal are marked as available frequency bands and shared devices, respectively. After marking, image transmission processing is performed on each shared device. Based on the processing results, the speed frequency band ranking and delay frequency band ranking of each shared device are obtained. Then, based on the speed frequency band ranking and delay frequency band ranking of each shared device, a multi-device shared analysis method is used for analysis, and the device gradient ranking corresponding to each available frequency band is obtained based on the analysis results. Finally, when using available WIFI frequency bands to transmit images to shared devices, frequency band allocation is performed on the shared devices based on the device gradient ranking corresponding to the used available frequency bands.

[0026] Furthermore, when the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0027] Example 4: This application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it performs the steps of the above-described WIFI multi-signal image transmission method to achieve the following functions: First, multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal are marked as available frequency bands and shared devices, respectively. After marking, each shared device is subjected to image transmission processing. Based on the processing results, the speed frequency band ranking and delay frequency band ranking of each shared device are obtained. Then, based on the speed frequency band ranking and delay frequency band ranking of each shared device, a multi-device shared analysis method is used for analysis, and based on the analysis results, the device gradient ranking corresponding to each available frequency band is obtained. Finally, when using the available frequency bands of WIFI to transmit images to shared devices, frequency band allocation is performed on the shared devices based on the device gradient ranking corresponding to the used available frequency bands.

[0028] Based on the above description of the embodiments, the embodiments of the present invention can be provided as methods, apparatus, or computer program products. Based on this understanding, the above technical solutions, in essence or in terms of their contribution to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or certain parts of the embodiments.

[0029] In the embodiments provided in this application, it should be understood that the disclosed apparatus or method can be implemented in other ways. The embodiments described above are merely illustrative. For example, the division of modules or units is only a logical functional division, and there may be other division methods in actual implementation. Furthermore, multiple modules or units may be combined or integrated into another device, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces. The indirect coupling or communication connection between devices, modules, and units may be electrical, mechanical, or other forms.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A WIFI multi-signal image transmission method, characterized in that, Includes the following steps: Multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal are respectively marked as available frequency bands KP1 to KP. t and shared equipment GS1 to GS r For each shared device, image transmission processing is performed to obtain its speed band ranking and latency band ranking; specifically, for any shared device GS... e Connect it to the WIFI signal, and mark the device that transmits images with the shared device as the auxiliary transmission device; for any available frequency band KP w Connect shared and auxiliary transmission equipment to this frequency band, ensuring identical environmental factors. Use the same video data for both analog and digital image transmission. The resulting transmission data includes both analog and digital data, where e and w are positive integers, 1 ≤ e ≤ r, and 1 ≤ w ≤ t. The transmission data includes data corresponding to the data transmission speed and data corresponding to the image transmission delay, which is the wireless transmission delay. Establish a Cartesian coordinate system as the image transmission reference coordinate system, and plot the analog speed curve and digital speed curve within it, as well as the analog delay curve and digital delay curve. For the analog speed curve, the coordinates are (X1... For any point α in the digital velocity curve (X1, Y1), the ordinate of the point with x1 is marked as Y2, and the point with coordinates (X1, Y3) is marked as the velocity reference point for point α, where Y3 = Y2 - Y1. The velocity reference curve is obtained by fitting the velocity reference points corresponding to all points in the analog velocity curve. For any point β in the digital delay curve: based on the processing method for obtaining the velocity reference points, the delay reference point corresponding to point β is obtained. The delay reference curve is obtained by fitting the delay reference points corresponding to all points in the digital delay curve. The areas between the velocity reference curve, the delay reference curve, and the X-axis are respectively denoted as the usable frequency band KP. w The velocity control area and the delay control area; the ordinates of all peaks and troughs in the velocity control curve are denoted as n1 to n... c The ordinates of all the points corresponding to the peaks and troughs in the delayed control curve are denoted as m1 to m2 respectively. z ;use Obtain available frequency bands KP respectively w The speed is compared with discrete values ​​and the delay is compared with discrete values; where, when the value of b is c, Q i For n i Q sq For n1 to n c When the average value of b is z, F is the velocity-to-discrete value; when the value of b is z, Q i For m i Q sq From m1 to m z When the average value is obtained, F is the discrete value of the delayed control; obtain the shared equipment GS e After accessing all available frequency bands, the corresponding velocity reference area and velocity reference discrete value are used to number all available frequency bands from smallest to largest, and the velocity area and velocity discrete value are respectively recorded as 1 to t; for any available frequency band KP w The sum of the velocity area number and the velocity discrete number is recorded as the velocity determination number; based on the velocity determination number from small to large, all available frequency bands are ranked using 1 to t to obtain the velocity frequency band ranking; based on the method of obtaining the velocity frequency band ranking from the velocity reference area and the velocity reference discrete value, the delay frequency band ranking corresponding to the delay reference area and the delay reference discrete value is obtained. Based on the speed band ranking and delay band ranking of each shared device, a multi-device sharing analysis method is used to obtain the device gradient ranking corresponding to each available frequency band; specifically, for any available frequency band KP w The sum of the values ​​corresponding to the ranking of each shared device in the speed band and the delay band is recorded as the priority value for each shared device in that band. Based on the priority value from smallest to largest, all shared devices are ranked using numbers from 1 to r, and the resulting ranking is recorded as the available frequency band KP. w Equipment tier ranking; When using available WIFI frequency bands to transmit images to shared devices, frequency bands are allocated to shared devices based on the device tier ranking corresponding to the available frequency bands.

2. The WIFI multi-signal image transmission method according to claim 1, characterized in that, Under the condition of keeping environmental factors the same, the same video data is used to perform analog and digital image transmission on the shared equipment and auxiliary transmission equipment respectively. Specifically, the equipment that acquires images in the shared equipment and auxiliary transmission equipment is used as the transmission starting point of analog and digital image transmission, and the equipment that receives images in the shared equipment and auxiliary transmission equipment is used as the transmission endpoint of analog and digital image transmission. The environmental factors consist of electromagnetic environment, human body and building.

3. The WIFI multi-signal image transmission method according to claim 2, characterized in that, The X-axis of the image transmission reference coordinate system is in min, and the Y-axis is in Gbps or ms. When the Y-axis is in Gbps, analog speed curves and digital speed curves are plotted in the image transmission reference coordinate system based on the data transmission speed between shared and auxiliary transmission equipment in analog and digital data. When the Y-axis is in ms, analog delay curves and digital delay curves are plotted in the image transmission reference coordinate system based on the image transmission delay between shared and auxiliary transmission equipment in analog and digital data.

4. The WIFI multi-signal image transmission method according to claim 3, characterized in that, When using available Wi-Fi frequency bands to transmit images to shared devices, frequency band allocation for shared devices is performed based on the device tier ranking corresponding to the available frequency bands, including: When using available WIFI frequency bands to transmit images to shared devices, for any unused shared device: obtain the ranking of the shared device in the device gradient ranking of all available frequency bands, and record the unused available frequency band with the lowest ranking as the frequency band to be allocated to the shared device.

5. A WIFI multi-signal image transmission device, used to implement the WIFI multi-signal image transmission method according to any one of claims 1-4, characterized in that, It includes a frequency band equipment analysis module, a frequency band equipment application module, and a real-time image transmission allocation module; The frequency band device analysis module is used to mark multiple frequency bands in the WIFI signal and multiple devices using the WIFI signal as available frequency bands and shared devices, respectively. For each shared device, a comparison image transmission process is performed to obtain the speed frequency band ranking and latency frequency band ranking of each shared device. The frequency band device application module is used to analyze the speed band ranking and delay band ranking of each shared device using a multi-device shared analysis method to obtain the device gradient ranking corresponding to each available frequency band. The real-time image transmission allocation module is used to allocate frequency bands to shared devices based on the device gradient ranking corresponding to the available frequency bands when using the available frequency bands of WIFI to transmit images to shared devices.

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