Multimedia equipment data management system and method based on Internet of Things

Abstract

The invention relates to the technical field of multimedia equipment supervision. The multimedia equipment data management system comprises a data acquisition module, a data analysis module, an interference detection module and a scheme selection module, the data acquisition module is used for acquiring data information of a storage space when the multimedia equipment runs and data information when the equipment runs; the data analysis module is used for analyzing the coverage range and the coverage intensity of the multimedia equipment; the interference detection module is used for analyzing the sound interference influence degree generated by the multimedia equipment storage scheme; and the scheme selection module is used for constructing a scheme evaluation model, selecting an optimal storage scheme and carrying out layout on the multimedia equipment in the target space according to the optimal storage scheme. According to the method, the sound coverage range and coverage intensity of the sound equipment are analyzed in the similar space, so that the cost and time are saved, and the design and configuration efficiency of the sound equipment system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of multimedia device supervision, and in particular to a multimedia device data management system and method based on the Internet of Things. Background Art

[0002] Multimedia technology refers to a technology that comprehensively processes and manages various media information such as text and images, allowing users to interact with computers in real time through multiple senses. Its core lies in digitizing these different forms of media information and integrating them on a certain interactive interface, so that computers have the ability to interactively display different media forms. This interactivity, integration, diversity and real-time nature make multimedia technology have a wide range of application scenarios, such as education, entertainment, advertising, commercial display, etc.; the development and improvement of multimedia technology enables people to more conveniently obtain, process, display and communicate information, greatly promoting the process of information society. In the future, with the continuous advancement and innovation of technology, multimedia technology will continue to play a greater role and bring more convenience and fun to people's lives and work; with the rapid development of technologies such as the Internet of Things and artificial intelligence and the continuous changes in consumer demand, multimedia devices are also constantly evolving and gradually developing in the direction of intelligence and personalization.

[0003] Under the existing technology, when multiple multimedia devices, namely speakers, are used simultaneously in a confined space, if the coverage of the multimedia devices is insufficient, the sound in certain areas may be too small or distorted, affecting the listener's auditory experience; if the coverage of the multimedia devices overlaps in many places, then sound interference will occur between the multiple speakers at the same time, resulting in the superposition and mutual interference of sounds, reducing the clarity and recognizability of the sounds. Summary of the invention

[0004] The object of the present invention is to provide a multimedia device data management system and method based on the Internet of Things to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a multimedia device data management method based on the Internet of Things, the multimedia device data management method specifically comprises the following steps: S100, using 3D laser scanning technology, structured light 3D scanning technology, etc. to generate a 3D model of the target space, and obtaining data information of the 3D model. When multiple multimedia devices, i.e., speakers, are used simultaneously in different spaces, the coverage range and coverage strength of the sound will be affected by various factors of the space. If the coverage range of the speakers is insufficient, the sound in some areas may be too small or distorted, affecting the auditory experience of the listener. Therefore, the coverage range and coverage strength of the multimedia devices are analyzed based on the data information of the 3D model. Based on the coverage range and coverage strength of the multimedia devices, a basis can be provided for optimizing the spatial layout, and the position and number of the speakers can be reasonably adjusted to achieve the best sound quality coverage effect. S200, obtaining the coverage of the multimedia device, and formulating a multimedia device storage plan according to the multimedia coverage and the three-dimensional model of the confined space. When multiple speakers are used simultaneously in a confined space, sound interference will occur between the speakers, so it is necessary to analyze the interference impact of multimedia devices of different storage plans according to the multimedia device storage plan; S300, constructing a scheme evaluation model according to the interference impact degree of the multimedia device, and selecting the multimedia device storage scheme as the best storage scheme according to the scheme evaluation model, and selecting the best multimedia device storage scheme to reduce the superposition and mutual interference of sounds, and to improve the clarity and recognizability of sounds.

[0006] Furthermore, the specific method of analyzing the coverage range and coverage strength of the device based on the data information of the three-dimensional model in S100 is as follows: S101, using 3D laser scanning technology, structured light 3D scanning technology, etc. to automatically generate a 3D model of the target space, and collect the 3D model of the target space to generate a spatial data information set S, obtain historical operation data information of the multimedia device according to the operation log of the multimedia device, and generate a historical space data information set Si according to the historical operation data information of the multimedia device, wherein the historical operation data information of the multimedia device includes the power of the multimedia device and the data information of the 3D model formed by the operation history space of the multimedia device; wherein Si represents the data information set of the 3D model of the i-th historical space, i=1, 2, 3...I, I represents the number of the operation history space of the multimedia device; the data information of the 3D model of the operation history space of the multimedia device is obtained to determine the operation environment of the multimedia device to avoid the reflection and absorption of sound due to the materials of walls and other surfaces; S102. According to the formula: pi=|S∩Si| / |S∪Si|, the similarity between the target space and the historical space of the multimedia device is calculated; wherein pi represents the similarity between the target space of the multimedia device and the data information set of the i-th historical space, |S∩Si| represents the number of subsets obtained by the intersection of the spatial data information set S and the historical space data information set Si, and |S∪Si| represents the number of subsets obtained by the union of the spatial data information set S and the historical space data information set Si; the coverage range and coverage strength of the multimedia device can be roughly obtained through the similarity of the data information of the target space and the historical space of the multimedia device, because each space has its own unique acoustic characteristics, which directly determine the propagation mode and effect of sound, so comparative analysis in similar spaces helps to more accurately understand the specific impact of these spaces on the sound effects, and comparative analysis of the sound coverage range and coverage strength in similar spaces can avoid repeated testing and adjustment work in multiple different spaces; this helps to save cost and time and improve the efficiency of sound system design and configuration.

[0007] S103. According to the similarity between the target space and the data information set of the historical space where the multimedia device is running, the historical operation data information of the multimedia device corresponding to the data information set of the historical space with the greatest similarity is selected and recorded as the historical operation data information set A; the coverage range of the multimedia device is obtained according to the historical operation data information set A as u, and the coverage strength is V=(spl*P) / L, where P represents the power of the multimedia device, and L represents the distance from the multimedia device. The farther the distance from the multimedia device is, the weaker the coverage strength of the position is. Spl represents the sound pressure level of the multimedia device, where the sound pressure level is a physical quantity representing the strength of sound, which is a logarithmic relationship between the ratio of sound pressure and reference sound pressure; spl=20*log 10 (c / c_ref), where c represents the playback sound pressure of the actual multimedia device, and c_ref represents the reference sound pressure, which is the minimum sound pressure that the human ear can perceive.

[0008] Furthermore, the specific method of analyzing the interference impact degree of multimedia devices of different storage schemes according to the multimedia device storage scheme in S200 is as follows: S201. Specify a multimedia device storage scheme according to the coverage of the multimedia device to generate a set W, W={W1, W2, W3...Wj...WJ}, where Wj represents the j-th multimedia device storage scheme, j=1, 2, 3...J, and J represents the number of multimedia device storage schemes; arbitrarily obtain a multimedia device storage scheme, denoted as W', and obtain the number of multimedia devices in the multimedia device storage scheme W' according to the multimedia device storage scheme W' as M; in order to conveniently and intuitively understand the sound propagation range of the multimedia device, it is necessary to analyze the coverage of the multimedia device according to the plane map, use the three-dimensional model of the target space to construct a rectangular coordinate system, obtain the location information of the multimedia device according to the spatial coordinate system as (Xm, Ym), and extract the plane map of the target space from the spatial data information set S; wherein W'∈W, (Xm, Ym) represents the location information of the m-th multimedia device in the target space, and the plane map of the target space is a picture showing the size of the target space plane; S202, according to the coverage range of the multimedia device, a sector-shaped area is divided in the plane map of the target space with the position of the multimedia device as the center as the coverage area, and the sector-shaped area, i.e., the coverage area, is generated and colored from dark to light according to the coverage strength of the multimedia device. The stronger the coverage strength of the multimedia device, the darker the color of the sector-shaped area. The Pillow library is used to obtain the RGB value of the pixel point of the coverage area of ​​any multimedia device, and the coverage area of ​​the multimedia device with the RGB value is mapped to the plane map of the target space to form a coverage map of the multimedia device in the target space; when there is an overlap of RGB values ​​of the coverage area in the coverage map, since it is a coverage map formed by mapping the coverage area of ​​the multimedia device to the plane map, the RGB value overlap area is determined to be an overlap of the multimedia device coverage range, and the image recognition algorithm is used to obtain the overlap size U of the multimedia device coverage range; wherein Pillow is a Python image processing library, which can be used to read images and obtain pixel values, and the RGB value represents the brightness of the pixel point. When the color of the pixel point is darker, the RGB value is smaller; S203. According to the formula: H(W')=α*U+(β / R), the interference influence degree of the multimedia device in the target space in the multimedia device storage scheme W' is calculated; wherein, (W')H represents the interference influence degree of the multimedia device in the target space in the multimedia device storage scheme W', R=∑(RGB)', R represents the sum of the RGB values ​​of the pixel points in the overlapping area of ​​the multimedia device coverage range, (RGB)' represents the RGB value of the pixel points in the overlapping area of ​​the multimedia device coverage range, α represents the influence factor, and β is the coefficient.

[0009] Furthermore, the specific method of selecting the multimedia device storage solution according to the solution evaluation model in S300 is as follows: S301. Constructing a program evaluation model: η(W')=(CU) / (m*uU) G(W')=G'-γ*H(W')+ω*η(W') The evaluation score of the multimedia equipment storage plan W' is calculated; wherein G(W') represents the evaluation score of the multimedia equipment storage plan W', G' represents the initial score of the multimedia equipment storage plan, γ and ω are constants; η(W') represents the utilization rate of the multimedia equipment in the multimedia equipment storage plan W', and C represents the area size of the target space plan; S302. Traverse the multimedia device storage plans in the set W to obtain the evaluation scores G(Wj) of the multimedia device storage plans, where G(Wj) represents the evaluation score of the j-th multimedia device storage plan; select the multimedia device storage plan with the highest evaluation score as the optimal storage plan, and layout the multimedia devices in the target space according to the optimal storage plan.

[0010] A multimedia device data management system based on the Internet of Things, the multimedia device data management system comprises a data acquisition module, a data analysis module, an interference detection module and a solution selection module; the output end of the data acquisition module is connected to the input end of the data analysis module, the input end of the data analysis module is connected to the input end of the interference detection module, and the output end of the interference detection module is connected to the input end of the solution selection module; the data acquisition module is used to collect data information of the storage space when the multimedia device is running and data information when the device is running; the data analysis module analyzes the coverage range and coverage strength of the multimedia device; the interference detection module analyzes the degree of sound interference caused by the storage solution of the multimedia device based on the coverage range and coverage strength of the multimedia device; the solution selection module constructs a solution evaluation model and selects the best storage solution based on the solution evaluation model.

[0011] Furthermore, the data acquisition module includes a spatial data information acquisition unit and a device operation data information acquisition unit; the spatial data information acquisition unit is used to collect data information of the storage space when the multimedia device is running. Because each space has its own unique acoustic characteristics, the similarity of the data information of the target space and the historical space of the multimedia device operation can roughly obtain the coverage range and coverage strength of the multimedia device; the device operation data information acquisition unit collects the historical operation data information of the corresponding multimedia device based on the similarity of the spatial data information.

[0012] Furthermore, the data analysis module includes a multimedia device coverage range analysis unit and a multimedia device coverage strength analysis unit; the multimedia device coverage range analysis unit analyzes the coverage range of information transmitted by the multimedia device; the multimedia device coverage strength analysis unit analyzes the strength of coverage of information transmitted by the multimedia device, and the longer the distance of information transmission, the lower the coverage strength will be.

[0013] Furthermore, the interference detection module includes an image processing and recognition unit and a scheme interference impact degree analysis unit; the image processing and recognition unit maps the coverage area of ​​the multimedia device with RGB values ​​to the plan view of the target space to obtain the overlapping area size of the multimedia device coverage range; the scheme interference impact degree analysis unit analyzes the interference impact degree of the multimedia device in the target space in the multimedia device storage plan.

[0014] Furthermore, the solution selection module includes a solution evaluation model construction unit and an optimal storage solution selection unit; the solution evaluation model construction unit constructs a solution evaluation model and analyzes the evaluation scores of the multimedia device storage solutions based on the solution evaluation model; the optimal storage solution selection unit selects the multimedia device storage solution with the highest evaluation score as the optimal storage solution.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention can obtain the coverage range and coverage strength of the multimedia device by analyzing the similarity of the data information of the target space and the historical space in which the multimedia device is running, so comparative analysis in similar spaces helps to more accurately understand the specific impact of these spaces on the sound effects, and comparative analysis of the sound coverage range and coverage strength in similar spaces can avoid repeated testing and adjustment work in multiple different spaces; this helps to save costs and time and improve the efficiency of sound system design and configuration; The present invention screens out the best storage plan by analyzing the evaluation scores of multimedia device storage plans, thereby saving the time of multimedia device testing and adjustment to achieve the best sound quality coverage effect, reducing the superposition and mutual interference of sounds, and improving the clarity and recognizability of sounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a multimedia device data management system based on the Internet of Things of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 The present invention provides a technical solution: a multimedia device data management method based on the Internet of Things, the multimedia device data management method specifically comprises the following steps: S100, using 3D laser scanning technology, structured light 3D scanning technology, etc. to generate a 3D model of the target space, and obtaining data information of the 3D model. When multiple multimedia devices, i.e., speakers, are used simultaneously in different spaces, the coverage range and coverage strength of the sound will be affected by various factors of the space. If the coverage range of the speakers is insufficient, the sound in some areas may be too small or distorted, affecting the auditory experience of the listener. Therefore, the coverage range and coverage strength of the multimedia devices are analyzed based on the data information of the 3D model. Based on the coverage range and coverage strength of the multimedia devices, a basis can be provided for optimizing the spatial layout, and the position and number of the speakers can be reasonably adjusted to achieve the best sound quality coverage effect. S200, obtaining the coverage of the multimedia device, and formulating a multimedia device storage plan according to the multimedia coverage and the three-dimensional model of the confined space. When multiple speakers are used simultaneously in a confined space, sound interference will occur between the speakers, so it is necessary to analyze the interference impact of multimedia devices of different storage plans according to the multimedia device storage plan; S300, constructing a scheme evaluation model according to the interference impact degree of the multimedia device, and selecting the multimedia device storage scheme as the best storage scheme according to the scheme evaluation model, and selecting the best multimedia device storage scheme to reduce the superposition and mutual interference of sounds, and to improve the clarity and recognizability of sounds.

[0019] Furthermore, the specific method of analyzing the coverage range and coverage strength of the device based on the data information of the three-dimensional model in S100 is as follows: S101. Automatically generate a three-dimensional model of a target space by using three-dimensional laser scanning technology, structured light three-dimensional scanning technology, etc., and collect the three-dimensional model of the target space to generate a spatial data information set S, obtain historical operation data information of the multimedia device according to the operation log of the multimedia device, and generate a historical space data information set Si according to the historical operation data information of the multimedia device, wherein the historical operation data information of the multimedia device includes the power of the multimedia device and the data information of the three-dimensional model formed by the operation history space of the multimedia device; wherein Si represents the data information set of the three-dimensional model of the i-th historical space, i=1, 2, 3...I, and I represents the number of the operation history space of the multimedia device; the data information of the three-dimensional model of the operation history space of the multimedia device is obtained to determine the operation environment of the multimedia device to avoid the reflection and absorption of sound due to the materials of walls and other surfaces; for example, smooth and hard surfaces (such as glass or tiles) may reflect more sound, while soft and porous surfaces (such as cloth or carpet) may absorb more sound.

[0020] S102. According to the formula: pi=|S∩Si| / |S∪Si|, the similarity between the target space and the historical space of the multimedia device is calculated; wherein pi represents the similarity between the target space of the multimedia device and the data information set of the i-th historical space, |S∩Si| represents the number of subsets obtained by the intersection of the spatial data information set S and the historical space data information set Si, and |S∪Si| represents the number of subsets obtained by the union of the spatial data information set S and the historical space data information set Si; the coverage range and coverage strength of the multimedia device can be roughly obtained through the similarity of the data information of the target space and the historical space of the multimedia device, because each space has its own unique acoustic characteristics, which directly determine the propagation mode and effect of sound, so comparative analysis in similar spaces helps to more accurately understand the specific impact of these spaces on the sound effects, and comparative analysis of the sound coverage range and coverage strength in similar spaces can avoid repeated testing and adjustment work in multiple different spaces; this helps to save cost and time and improve the efficiency of sound system design and configuration.

[0021] S103. According to the similarity between the target space and the data information set of the historical space where the multimedia device is running, the historical operation data information of the multimedia device corresponding to the data information set of the historical space with the greatest similarity is selected and recorded as the historical operation data information set A; the coverage range of the multimedia device is obtained according to the historical operation data information set A as u, and the coverage strength is V=(spl*P) / L, where P represents the power of the multimedia device, and L represents the distance from the multimedia device. The farther the distance from the multimedia device is, the weaker the coverage strength of the position is. Spl represents the sound pressure level of the multimedia device, where the sound pressure level is a physical quantity representing the strength of sound, which is a logarithmic relationship between the ratio of sound pressure and reference sound pressure; spl=20*log 10 (c / c_ref), where c represents the playback sound pressure of the actual multimedia device, and c_ref represents the reference sound pressure, usually 20 vepascals, which is the minimum sound pressure that the human ear can perceive.

[0022] Furthermore, the specific method of analyzing the interference impact degree of multimedia devices of different storage schemes according to the multimedia device storage scheme in S200 is as follows: S201. Specify a multimedia device storage scheme according to the coverage of the multimedia device to generate a set W, W={W1, W2, W3...Wj...WJ}, where Wj represents the j-th multimedia device storage scheme, j=1, 2, 3...J, and J represents the number of multimedia device storage schemes; arbitrarily obtain a multimedia device storage scheme, denoted as W', and obtain the number of multimedia devices in the multimedia device storage scheme W' according to the multimedia device storage scheme W' as M; in order to conveniently and intuitively understand the sound propagation range of the multimedia device, it is necessary to analyze the coverage of the multimedia device according to the plane map, use the three-dimensional model of the target space to construct a rectangular coordinate system, obtain the location information of the multimedia device according to the spatial coordinate system as (Xm, Ym), and extract the plane map of the target space from the spatial data information set S; wherein W'∈W, (Xm, Ym) represents the location information of the m-th multimedia device in the target space, and the plane map of the target space is a picture showing the size of the target space plane; S202, according to the coverage range of the multimedia device, a sector area is divided in the plane map of the target space with the position of the multimedia device as the center as the coverage area, and the sector area, i.e., the coverage area, is generated and colored from dark to light according to the coverage strength of the multimedia device. The stronger the coverage strength of the multimedia device, the darker the color of the sector area. The Pillow library is used to obtain the RGB value of the pixel point of the coverage area of ​​any multimedia device, and the coverage area of ​​the multimedia device with the RGB value is mapped to the plane map of the target space to form a coverage map of the multimedia device in the target space; when there is an overlap of RGB values ​​of the coverage area in the coverage map, since it is a coverage map formed by mapping the coverage area of ​​the multimedia device to the plane map, the RGB value overlap area is determined to be an overlap of the multimedia device coverage range, and the overlap size U of the multimedia device coverage range is obtained; wherein Pillow is a Python image processing library, which can be used to read images and obtain pixel values, and the RGB value is represented as the brightness of the pixel point. When the color of the pixel point is darker, the RGB value is smaller; S203. According to the formula: H(W')=α*U+(β / R), the interference influence degree of the multimedia device in the target space in the multimedia device storage scheme W' is calculated; wherein, (W')H represents the interference influence degree of the multimedia device in the target space in the multimedia device storage scheme W', R=∑(RGB)', R represents the sum of the RGB values ​​of the pixel points in the overlapping area of ​​the multimedia device coverage range, (RGB)' represents the RGB value of the pixel points in the overlapping area of ​​the multimedia device coverage range, α represents the influence factor, and β is the coefficient.

[0023] Furthermore, the specific method of selecting the multimedia device storage solution according to the solution evaluation model in S300 is as follows: S301. Constructing a program evaluation model: η(W')=(CU) / (m*uU) G(W')=G'-γ*H(W')+ω*η(W') The evaluation score of the multimedia equipment storage plan W' is calculated; wherein G(W') represents the evaluation score of the multimedia equipment storage plan W', G' represents the initial score of the multimedia equipment storage plan, γ and ω are constants; η(W') represents the utilization rate of the multimedia equipment in the multimedia equipment storage plan W', and C represents the area size of the target space plan; S302. Traverse the multimedia device storage plans in the set W to obtain the evaluation scores G(Wj) of the multimedia device storage plans, where G(Wj) represents the evaluation score of the j-th multimedia device storage plan; select the multimedia device storage plan with the highest evaluation score as the optimal storage plan, and layout the multimedia devices in the target space according to the optimal storage plan.

[0024] A multimedia device data management system based on the Internet of Things, the multimedia device data management system comprises a data acquisition module, a data analysis module, an interference detection module and a solution selection module; the output end of the data acquisition module is connected to the input end of the data analysis module, the input end of the data analysis module is connected to the input end of the interference detection module, and the output end of the interference detection module is connected to the input end of the solution selection module; the data acquisition module is used to collect data information of the storage space when the multimedia device is running and data information when the device is running; the data analysis module analyzes the coverage range and coverage strength of the multimedia device; the interference detection module analyzes the degree of sound interference caused by the storage solution of the multimedia device based on the coverage range and coverage strength of the multimedia device; the solution selection module constructs a solution evaluation model and selects the best storage solution based on the solution evaluation model.

[0025] Furthermore, the data acquisition module includes a spatial data information acquisition unit and a device operation data information acquisition unit; the spatial data information acquisition unit is used to collect data information of the storage space when the multimedia device is running. Because each space has its own unique acoustic characteristics, the similarity of the data information of the target space and the historical space of the multimedia device operation can roughly obtain the coverage range and coverage strength of the multimedia device; the device operation data information acquisition unit collects the historical operation data information of the corresponding multimedia device based on the similarity of the spatial data information.

[0026] Furthermore, the data analysis module includes a multimedia device coverage range analysis unit and a multimedia device coverage strength analysis unit; the multimedia device coverage range analysis unit analyzes the coverage range of information transmitted by the multimedia device; the multimedia device coverage strength analysis unit analyzes the strength of coverage of information transmitted by the multimedia device, and the longer the distance of information transmission, the lower the coverage strength will be.

[0027] Furthermore, the interference detection module includes an image processing and recognition unit and a scheme interference impact degree analysis unit; the image processing and recognition unit maps the coverage area of ​​the multimedia device with RGB values ​​to the plan view of the target space to obtain the overlapping area size of the multimedia device coverage range; the scheme interference impact degree analysis unit analyzes the interference impact degree of the multimedia device in the target space in the multimedia device storage plan.

[0028] Furthermore, the solution selection module includes a solution evaluation model construction unit and an optimal storage solution selection unit; the solution evaluation model construction unit constructs a solution evaluation model and analyzes the evaluation scores of the multimedia device storage solutions based on the solution evaluation model; the optimal storage solution selection unit selects the multimedia device storage solution with the highest evaluation score as the optimal storage solution. In this embodiment: The Pillow library is used to obtain the RGB values ​​of the pixels in the coverage area of ​​any multimedia device, and the coverage area of ​​the multimedia device with the RGB value is mapped to the plane map of the target space to form a coverage map of the multimedia device in the target space; when there is an overlap of the RGB values ​​of the coverage area in the coverage map, the RGB value overlapping area is determined to be the overlap of the multimedia device coverage range because the coverage area of ​​the multimedia device is mapped to the plane map to form the coverage map, and the overlap size U of the multimedia device coverage range is obtained; wherein Pillow is a Python image processing library, which can be used to read images and obtain pixel values. The RGB value is expressed as the brightness of the pixel point. When the pixel point color is darker, the RGB value is smaller; Using the image recognition algorithm, we can get the overlapping size of multimedia device coverage, U=10, and the RGB values ​​of the overlapping area are {254, 234, 200, 195...} According to the formula: H(W') = α*U + (β / R) = 0.9*10 + (255 / 2670) = 9.1, the interference influence degree of multimedia devices in the target space in the multimedia device storage solution W' is calculated; according to the formula: η(W')=(CU) / (m*uU)=(175-10) / (5*50-10)=0.7 G(W')=G'-γ*H(W')+ω*η(W')=100-5*9.1+10*0.7=61.5 Calculate and obtain the evaluation score of the multimedia device storage plan W'; traverse the multimedia device storage plans in the set W to obtain the evaluation scores of the multimedia device storage plans as {95, 91, 88...}, select the multimedia device storage plan with an evaluation score of 95 as the best storage plan, and layout the multimedia devices in the target space according to the best storage plan.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multimedia device data management method based on the Internet of Things, characterized in that: The multimedia device data management method specifically comprises the following steps: S100, using 3D laser scanning technology to generate a 3D model of the target space, obtaining data information of the 3D model, and analyzing the coverage range and coverage strength of the multimedia device based on the data information of the 3D model; S200, obtaining the coverage of multimedia devices, formulating a multimedia device storage plan according to the multimedia coverage and the three-dimensional model of the confined space, and analyzing the interference impact of multimedia devices of different storage plans according to the multimedia device storage plan; S300: construct a solution evaluation model according to the interference impact degree of the multimedia device, and select the multimedia device storage solution as the best storage solution according to the solution evaluation model.

2. The method for managing multimedia device data based on the Internet of Things according to claim 1, characterized in that: The specific method of analyzing the coverage range and coverage strength of the device based on the data information of the three-dimensional model in S100 is as follows: S101, using 3D laser scanning technology to generate a 3D model of a target space, and collecting the 3D model of the target space to generate a spatial data information set S, obtaining historical operation data information of the multimedia device from the operation log of the multimedia device, and generating a historical space data information set Si according to the historical operation data information of the multimedia device, wherein the historical operation data information of the multimedia device includes the power of the multimedia device and the data information of the 3D model formed by the operation history space of the multimedia device; wherein Si represents the data information set of the 3D model of the i-th historical space, i=1, 2, 3...I, and I represents the number of the operation history spaces of the multimedia device; S102. According to the formula: pi=|S∩Si| / |S∪Si|, calculate the similarity between the target space of the multimedia device operation and the data information set of the historical space; wherein pi represents the similarity between the target space of the multimedia device operation and the data information set of the i-th historical space, |S∩Si| represents the number of subsets obtained by the intersection of the spatial data information set S and the historical spatial data information set Si, and |S∪Si| represents the number of subsets obtained by the union of the spatial data information set S and the historical spatial data information set Si; S103. According to the similarity between the target space and the data information set of the historical space where the multimedia device is running, the historical operation data information of the multimedia device corresponding to the data information set of the historical space with the greatest similarity is selected, and recorded as the historical operation data information set A; according to the historical operation data information set A, the coverage range of the multimedia device is obtained as u, and the coverage strength is V= (spl*P) / L, where P represents the power of the multimedia device, L represents the distance from the multimedia device, and spl represents the sound pressure level of the multimedia device.

3. The method for managing multimedia device data based on the Internet of Things according to claim 2, characterized in that: The specific method of analyzing the interference impact degree of multimedia devices of different storage schemes according to the multimedia device storage scheme in S200 is as follows: S201, specifying a multimedia device storage scheme generation set W according to the coverage of the multimedia device, W={W1, W2, W3...Wj...WJ}, where Wj represents the j-th multimedia device storage scheme, j=1, 2, 3...J, and J represents the number of multimedia device storage schemes; obtaining any multimedia device storage scheme, denoted as W', and obtaining the number of multimedia devices in the multimedia device storage scheme W' as M according to the multimedia device storage scheme W'; constructing a rectangular coordinate system using the three-dimensional model of the target space, obtaining the location information of the multimedia device as (Xm, Ym) according to the spatial coordinate system, and extracting the plane map of the target space from the spatial data information set S; Where W'∈W, (Xm, Ym) represents the location information of the mth multimedia device in the target space; S202, dividing a sector area as a coverage area in the plane map of the target space with the position of the multimedia device as the center according to the coverage range of the multimedia device, respectively generating and marking the colors of the sector area, i.e., the coverage area, from dark to light according to the coverage strength of the multimedia device, using the Pillow library to obtain the RGB value of the pixel point of the coverage area of ​​any multimedia device, mapping the coverage area of ​​the multimedia device with the RGB value to the plane map of the target space, and forming a coverage map of the multimedia device in the target space; when there is an overlap of RGB values ​​of the coverage area in the coverage map, determining that the RGB value overlap area is an overlap of the multimedia device coverage range, and using the image recognition algorithm to obtain the overlap size U of the multimedia device coverage range; S203. According to the formula: H(W')=α*U+(β / R), the interference influence degree of the multimedia device in the target space in the multimedia device storage scheme W' is calculated; wherein, (W')H represents the interference influence degree of the multimedia device in the target space in the multimedia device storage scheme W', R=∑(RGB)', R represents the sum of the RGB values ​​of the pixel points in the overlapping area of ​​the multimedia device coverage range, (RGB)' represents the RGB value of the pixel points in the overlapping area of ​​the multimedia device coverage range, α represents the influence factor, and β is the coefficient.

4. The method for managing multimedia device data based on the Internet of Things according to claim 3, characterized in that: The specific method of selecting the multimedia device storage solution according to the solution evaluation model in S300 is as follows: S301. Constructing a program evaluation model: η(W')=(CU) / (m*uU) G(W')=G'-γ*H(W')+ω*η(W') The evaluation score of the multimedia equipment storage plan W' is calculated; wherein G(W') represents the evaluation score of the multimedia equipment storage plan W', G' represents the initial score of the multimedia equipment storage plan, γ and ω are constants; η(W') represents the utilization rate of the multimedia equipment in the multimedia equipment storage plan W', and C represents the area size of the target space plan; S302, traverse the multimedia device storage solutions in the set W to obtain the evaluation scores G(Wj) of the multimedia device storage solutions, where G(Wj) represents the evaluation score of the j-th multimedia device storage solution; select the multimedia device storage solution with the highest evaluation score as the optimal storage solution.

5. A multimedia device data management system based on the Internet of Things, characterized by: The multimedia device data management system includes a data acquisition module, a data analysis module, an interference detection module and a solution selection module; the output end of the data acquisition module is connected to the input end of the data analysis module, the input end of the data analysis module is connected to the input end of the interference detection module, and the output end of the interference detection module is connected to the input end of the solution selection module; the data acquisition module is used to collect data information of the storage space when the multimedia device is running and data information when the device is running; the data analysis module analyzes the coverage range and coverage strength of the multimedia device; the interference detection module analyzes the degree of sound interference caused by the storage solution of the multimedia device based on the coverage range and coverage strength of the multimedia device; the solution selection module constructs a solution evaluation model and selects the best storage solution based on the solution evaluation model.

6. The multimedia device data management system based on the Internet of Things according to claim 5, characterized in that: The data acquisition module includes a spatial data information acquisition unit and a device operation data information acquisition unit; the spatial data information acquisition unit is used to collect data information of the storage space when the multimedia device is running; The device operation data information collection unit collects historical operation data information of corresponding multimedia devices according to the similarity of spatial data information.

7. The multimedia device data management system based on the Internet of Things according to claim 6 is characterized in that: The data analysis module includes a multimedia device coverage range analysis unit and a multimedia device coverage strength analysis unit; the multimedia device coverage range analysis unit analyzes the coverage range of multimedia device transmission information; the multimedia device coverage strength analysis unit analyzes the strength of coverage of multimedia device transmission information.

8. The multimedia device data management system based on the Internet of Things according to claim 7, characterized in that: The interference detection module includes an image processing and recognition unit and a scheme interference impact degree analysis unit; the image processing and recognition unit maps the coverage area of ​​the multimedia device with RGB values ​​to the plan view of the target space to obtain the overlapping area size of the multimedia device coverage range; the scheme interference impact degree analysis unit is to analyze the interference impact degree of the multimedia device in the target space in the multimedia device storage plan.

9. The multimedia device data management system based on the Internet of Things according to claim 8, characterized in that: The solution selection module includes a solution evaluation model construction unit and an optimal storage solution selection unit; the solution evaluation model construction unit constructs a solution evaluation model and analyzes the evaluation scores of the multimedia device storage solutions based on the solution evaluation model; the optimal storage solution selection unit selects the solution with the highest evaluation score among the multimedia device storage solutions as the optimal storage solution.

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