An automatic tracking recording and broadcasting control system based on wireless communication

Abstract

The present invention relates to the technical field of automatic tracking recording and broadcasting, and discloses an automatic tracking recording and broadcasting control system based on wireless communication, including a video acquisition unit for acquiring on-site and stage images through the video acquisition unit; a voice acquisition unit for acquiring sound information on the stage site through the voice acquisition unit; an atmosphere monitoring unit for monitoring and judging the on-site atmosphere through the atmosphere monitoring unit; and a personnel positioning unit for positioning the personnel on the stage through the personnel positioning unit. The present invention also provides an atmosphere monitoring unit, through which the reactions of the on-site audience can be detected. In addition to conventional mechanical recording, the control unit can rely on the feedback of the on-site audience to focus on recording the on-site images and classify the recorded videos. During the later processing, the user can focus on the videos with key recordings, greatly reducing the amount of later processing.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic tracking recording and broadcasting, and specifically relates to an automatic tracking recording and broadcasting control system based on wireless communication. Background Art

[0002] During holidays, major shopping malls will hold activities. Unless it is a relatively important day, due to cost considerations, the performances in shopping malls are by non-professional performance teams. Generally, the performers are mainly from various training institutions such as dance training institutions, martial arts training institutions, or model training institutions. They cooperate with the shopping malls. The shopping malls gather popularity through the performances of the training institutions, while the training institutions promote themselves and increase their popularity by performing in the shopping malls, or exercise and test their students on the stage of the shopping malls.

[0003] During the performance of the training institutions, it is necessary to record the scene and then intercept the materials for publicity. In most cases, the on-site recording is generally carried out manually by a camera device. Although there are also automatic recording and broadcasting devices on the market, these automatic recording and broadcasting devices can only mechanically complete the on-site recording without focus. After the recording is completed, the user needs to spend a lot of time sorting, editing, or splicing the recorded materials, which is relatively inconvenient to use. Summary of the Invention

[0004] The present invention provides an automatic tracking recording and broadcasting control system based on wireless communication, which has the beneficial effect of being able to focus on recording the on-site pictures, effectively reducing the subsequent material processing volume, and solving the problem mentioned in the above background art that the existing automatic recording and broadcasting devices can only mechanically complete the on-site recording without focus. After the recording is completed, the user needs to spend a lot of time sorting, editing, or splicing the recorded materials, which is relatively inconvenient to use.

[0005] The present invention provides the following technical solution: An automatic tracking recording and broadcasting control system based on wireless communication, including a video acquisition unit for acquiring on-site and stage pictures through the video acquisition unit;

[0006] A voice acquisition unit: for acquiring the sound information of the stage scene through the voice acquisition unit;

[0007] An atmosphere monitoring unit: for monitoring and judging the on-site atmosphere through the atmosphere monitoring unit;

[0008] A personnel positioning unit: for positioning the personnel on the stage through the personnel positioning unit to facilitate the video acquisition unit to perform tracking shooting;

[0009] A control unit: for controlling the on-site equipment through the control unit and classifying and storing the recorded videos.

[0010] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the video acquisition unit includes a front-stage acquisition camera, a side-stage acquisition camera, and a top-stage acquisition camera;

[0011] The front-stage acquisition camera is located at the front side of the stage and is used to acquire video content from the front perspective of the stage;

[0012] The side-stage acquisition cameras are respectively arranged on both sides of the stage and are used to acquire video content from the side perspectives of the stage;

[0013] The top-stage acquisition camera is located at the top of the stage and is used to acquire video content around the stage.

[0014] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the atmosphere monitoring unit is composed of several noise decibel sensors, and the noise decibel sensors are evenly distributed around the stage, and the noise decibel information around the stage is collected through the noise decibel sensors.

[0015] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the personnel positioning unit includes a Bluetooth AOA locator and Bluetooth beacons. The Bluetooth beacons are installed on the personnel to be located, and the personnel on the stage are located in real time through the Bluetooth AOA locator. After receiving the personnel position information, the control unit adjusts the video acquisition unit according to the real-time position of the stage personnel to capture specific pictures.

[0016] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the control unit includes a wireless signal generator, a wireless signal receiver, a first storage module, a second storage module, and a host. The host conducts information interaction with on-site devices through wireless signals, and classifies and stores the video materials collected by the video acquisition unit through the first storage module and the second storage module.

[0017] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the video acquisition unit has two working states. One is the normal working state: when the performance starts, the video acquisition unit works until the performance ends. During this process, the collected video materials are stored in the first storage module, and the cameras at each position are in a static working state;

[0018] The second is the key recording state: according to the preset mode, the key areas or specific characters are collected through the video acquisition unit, and the collected video materials are stored in the second storage module. During this process, the cameras at each position will perform tracking shooting according to the movement of specific targets.

[0019] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the preset mode includes timing selection. After the performance starts, the host controls the video acquisition unit to focus on recording the live picture for a period of time according to the preset time and preset conditions;

[0020] The selection of the time period of the preset time is determined according to the program flow determined during the rehearsal. According to the pre-rehearsed program flow, the programs or performers that need to be recorded are selected for key recording;

[0021] The preset condition is a performer or prop with a Bluetooth beacon carrying different information. According to the different performance programs, Bluetooth beacons carrying different information are set for the performers or props. During the performance, the performers need to perform on the stage. When the host receives that the Bluetooth beacon has reached the predetermined position, the host adjusts the video acquisition unit to focus on recording a specific target or a specific program through the video acquisition unit.

[0022] The preset condition also includes the stage surrounding atmosphere. The atmosphere monitoring unit detects the sound around the stage. According to the size of the decibel, the larger the decibel, the more enthusiastic the atmosphere is judged, and the smaller the decibel, the colder the atmosphere is judged. After the performance starts, the host starts timing. Every once in a while, the data collected by the atmosphere monitoring unit is used to collect the picture of the area with the most enthusiastic atmosphere around the stage.

[0023] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the preset mode includes condition selection. The host controls the video acquisition unit to collect according to the data collected by the atmosphere monitoring unit. When the heat value around the stage exceeds a certain threshold, the host controls the video acquisition unit to collect, and the acquisition camera on the top of the stage records the area in front of the stage where the heat value exceeds the threshold;

[0024] For the division of the area, the acquisition camera on the top of the stage is installed on the central axis of the stage and can rotate 180°. Taking the rotation angle of the acquisition camera on the top of the stage as the reference object, the area in front of the stage is divided, and the included angle of each area is 15°;

[0025] When multiple areas exceeding the threshold appear around the stage at the same time, the host first sorts the areas exceeding the threshold according to the data measured by the atmosphere monitoring unit according to the size. First, the acquisition camera on the top of the stage is adjusted to the area with the most enthusiastic heat value for acquisition, and then the areas exceeding the threshold are recorded in turn according to the sorting of the heat values;

[0026] When all areas around the stage exceed the threshold, after receiving the signal, the host sorts each area according to the magnitude of the heat value of each area, and then selects several areas for recording in descending order of the heat value arrangement. For areas with lower rankings, recording is abandoned;

[0027] Path planning of the camera during multi-area recording: Taking the position of the camera collected at the top of the stage as the origin and the central axis of the stage as the axis, two mutually mirror-image first coordinate systems and second coordinate systems are established. Both the first coordinate system and the second coordinate system contain 6 areas. When a super-threshold area appears in each of the first coordinate system and the second coordinate system, if the difference between the heat values of the two areas is less than 10 - 30, then taking the central axis of the stage as a mark, the camera collected at the top of the stage preferentially records the area closest to the central axis of the stage. If the difference between the heat values of the two areas is greater than 30, recording is carried out in order of the heat value from high to low during recording;

[0028] When multiple areas exceed the predetermined threshold and the difference between the heat values of two or more adjacent areas is less than 10 - 30, these areas are regarded as a whole, denoted as a large area. During recording, the area with the highest heat value is preferentially recorded, then the large area is recorded, and then the individual small areas are recorded in descending order of the heat value arrangement.

[0029] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the preset mode includes close-up selection. The Bluetooth beacon is placed on a specific person. When the specific person steps onto the stage, the Bluetooth AOA locator will send the position of the specific person to the host in real time according to the position of the Bluetooth beacon. The host, according to the position of the specific person, uses the cameras collected on the front and side of the stage to track and photograph the specific target.

[0030] As an alternative solution of the automatic tracking recording and broadcasting control system based on wireless communication according to the present invention, wherein: the host further includes a face recognition module, which discriminates the gender and age of the on-site audience. During video recording, the host focuses on recording specific groups according to different age groups and genders;

[0031] The face recognition module is also used to recognize the number of people, and the control module adjusts the threshold according to the change in the number of people;

[0032] By default, when the number of people in each area is 10, the preset heat value threshold for each area is 650. When the number of people in each area decreases by 1, the threshold is lowered by 20. When the number of people in each area increases by 1, the threshold is increased by 20.

[0033] The present invention has the following beneficial effects:

[0034] 1. The automatic tracking recording and broadcasting control system based on wireless communication. In the present invention, a video acquisition unit is used to collect on-site images for later publicity or teaching materials. The on-site images are divided into the images on the stage and the images under the stage. The images on the stage are mainly performers, and the images under the stage are mainly the on-site audience. The present invention also sets up an atmosphere monitoring unit, through which the reactions of the on-site audience can be detected. In addition to the conventional mechanical recording, the control unit can rely on the feedback of the on-site audience to focus on recording the on-site images and classify the recorded videos. During the later processing, the user can focus on the videos with key recordings, greatly reducing the later processing volume and making it more convenient to use.

[0035] 2. The automatic tracking recording and broadcasting control system based on wireless communication. In this technical solution, by setting up a face recognition module, the gender and age of the on-site audience can be identified during recording, and recording can be carried out for specific groups. In this way, there is no need to edit for specific groups during the later editing process, greatly reducing the workload.

[0036] In addition to being used to identify the characteristics of the on-site audience, the face recognition module is also used to identify the number of the on-site audience, and then adjust the preset heat value threshold according to the number of the on-site audience, effectively improving the recording accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is the system structure block diagram of the present invention.

[0038] Figure 2 It is the schematic diagram of the distribution of the peripheral equipment on the stage of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0040] Please refer to Figures 1 to 2 , the present invention discloses an automatic tracking recording and broadcasting control system based on wireless communication, including a video acquisition unit for collecting on-site and stage images;

[0041] A voice acquisition unit: for collecting the sound information on the stage site through the voice acquisition unit;

[0042] Atmosphere monitoring unit: The on-site atmosphere is monitored and judged by the atmosphere monitoring unit;

[0043] Personnel positioning unit: The personnel on the stage are positioned by the personnel positioning unit to facilitate the tracking shooting by the video acquisition unit;

[0044] Control unit: The on-site equipment is controlled by the control unit, and the recorded videos are classified and stored.

[0045] In the present invention, the on-site images are collected by the video acquisition unit to collect materials for later publicity or teaching. The on-site images are divided into the images on the stage and the images under the stage. The images on the stage are mainly the performers, and the images under the stage are mainly the on-site audience. The present invention also sets an atmosphere monitoring unit, through which the reactions of the on-site audience can be detected. In addition to the conventional full-field mechanical recording, the control unit can rely on the feedback of the on-site audience to focus on recording the on-site images and classify the recorded videos. During the later processing, the user can focus on the videos with key recordings, greatly reducing the later processing volume and making it more convenient to use. Embodiment

[0046] This embodiment is an explanatory note based on Embodiment 1. Specifically, please refer to Figures 1 to 2 The video acquisition unit includes a front-stage acquisition camera, side-stage acquisition cameras, and a top-stage acquisition camera;

[0047] The front-stage acquisition camera is located at the front side of the stage and is used to collect video content from the front perspective of the stage;

[0048] The side-stage acquisition cameras are respectively arranged on both sides of the stage and are used to collect video content from the side perspectives of the stage;

[0049] The top-stage acquisition camera is located at the top of the stage and is used to collect video content around the stage.

[0050] The atmosphere monitoring unit is composed of several noise decibel sensors, which are evenly distributed around the stage. The noise decibel sensors are used to collect the noise decibel information around the stage.

[0051] In the present invention, the object measured by the atmosphere monitoring unit is the noise decibel. When the audience surrounds the stage, noise will be generated around the stage. For different programs, the audience will have different reactions. When the program is more attractive, the discussions among the on-site audience will be more enthusiastic. Naturally, the noise around the stage will increase. Vice versa, if the program is average and the audience's reaction is not intense, then the noise around the stage will decrease. By detecting the noise around the stage and then converting the noise into a heat value, the control unit controls the video acquisition unit to collect key pictures according to the change of the heat value;

[0052] The personnel positioning unit includes a Bluetooth AOA locator and Bluetooth beacons. The Bluetooth beacons are installed on the personnel to be located, and the Bluetooth AOA locator is used to perform real-time positioning of the personnel on the stage. After receiving the personnel position information, the control unit adjusts the video acquisition unit according to the real-time position of the stage personnel to capture specific pictures. Embodiment

[0053] This embodiment is an explanatory note based on Embodiment 1. Specifically, please refer to Figures 1 to 2 The control unit includes a wireless signal generator, a wireless signal receiver, a first storage module, a second storage module, and a host. The host conducts information interaction with on-site devices through wireless signals, and classifies and stores the video materials collected by the video acquisition unit through the first storage module and the second storage module.

[0054] The video acquisition unit has two working states. One is the normal working state: when the performance starts, the video acquisition unit works until the performance ends. During this process, the collected video materials are stored in the first storage module, and the cameras at each position are in a static working state;

[0055] The second is the key recording state: according to the preset mode, the video acquisition unit focuses on collecting key areas or specific people, and the collected video materials are stored in the second storage module. During this process, the cameras at each position will track and shoot according to the movement of specific targets.

[0056] The preset mode includes timed selection. After the performance starts, the host controls the video acquisition unit to conduct key recording of the on-site pictures for a period of time according to the preset time and preset conditions;

[0057] The selection of the time period of the preset time is determined according to the program process determined during the rehearsal. According to the pre-rehearsed program process, the programs or performers that need to be recorded are selected for key recording;

[0058] The preset conditions are performers or props with Bluetooth beacons carrying different information. According to different performance programs, Bluetooth beacons carrying different information are set for the performers or props. During the performance, the performers need to perform on the stage. When the host receives that the Bluetooth beacon has reached the predetermined position, the host adjusts the video acquisition unit, and through the video acquisition unit, key recording is carried out on specific targets or specific programs.

[0059] The preset conditions also include the stage surrounding atmosphere. The sound around the stage is detected by the atmosphere monitoring unit. According to the size of the decibel, the larger the decibel, the more enthusiastic the atmosphere is judged to be, and the smaller the decibel, the colder the atmosphere is judged to be. After the performance starts, the host starts timing. At regular intervals, the data collected by the atmosphere monitoring unit is used to collect images of the area with the most enthusiastic stage surrounding atmosphere.

[0060] During the rehearsal, the order and approximate performance time of each program are generally determined. When key programs need to be recorded, the time can be preset according to the rehearsal situation. When the predetermined time is reached, the control unit controls the video acquisition unit to record the key program, which can effectively improve the efficiency of later material processing. However, if relying solely on the rehearsal time to record the on-site programs, it is not accurate enough. Therefore, during the live performance, unexpected situations may interrupt the performance or extend the performance time. In order to collect key images more accurately, this technical solution also sets preset conditions. The preset conditions include performers or props with Bluetooth beacons. During the live performance, different Bluetooth beacons are set according to different programs. When identifying, the performers or props with Bluetooth beacons will come to the stage. The Bluetooth AOA locator can locate the performers or props with Bluetooth beacons, and the control unit collects key images according to the positioning information provided by the personnel positioning unit;

[0061] Specifically, according to the program process, for the program that needs to be key-recorded, its performers or props will carry corresponding Bluetooth beacons. When the Bluetooth beacon comes to the stage, the control unit will receive the information. After receiving the information, after a period of time, the control unit controls the video acquisition unit to record the scene. If the position information of the corresponding Bluetooth beacon is not received, then even if the originally scheduled time arrives, the video acquisition unit will not work, which is more targeted.

[0062] The preset mode includes condition selection. The host controls the video acquisition unit to collect according to the data collected by the atmosphere monitoring unit. When the heat value around the stage exceeds a certain threshold, the host controls the video acquisition unit to collect, and records the area in front of the stage where the heat value exceeds the threshold through the camera on the top of the stage;

[0063] For the division of the said area, the camera installed at the top of the stage is mounted on the central axis of the stage and can rotate 180°. Taking the rotation angle of the camera at the top of the stage as the reference object, the area in front of the stage is divided, and the included angle of each area is 15°;

[0064] When multiple super-threshold areas appear around the stage simultaneously, the host first sorts the super-threshold areas according to their sizes based on the data measured by the atmosphere monitoring unit. First, the camera at the top of the stage is adjusted to the area with the hottest heat value for acquisition, and then the super-threshold areas are recorded in sequence according to the sorting of the heat values;

[0065] When all areas around the stage exceed the threshold, after receiving the signal, the host sorts the areas according to the sizes of the heat values of each area, and then selects several areas for selective recording from high to low according to the arrangement of the heat values, and abandons the recording of the areas with lower rankings;

[0066] Path planning of the camera during multi-area recording: Taking the position of the camera at the top of the stage as the origin and the central axis of the stage as the axis, two mutually mirror-image first coordinate systems and second coordinate systems are established. Both the first coordinate system and the second coordinate system contain 6 areas. When a super-threshold area appears in each of the first coordinate system and the second coordinate system, if the difference between the heat values of the two areas is less than 10 - 30, then taking the central axis of the stage as the mark, the camera at the top of the stage preferentially records the area closest to the central axis of the stage. If the difference between the heat values of the two areas is greater than 30, the recording is carried out in sequence according to the high and low heat values during recording;

[0067] When multiple areas exceed the predetermined threshold and the difference between the heat values of two or more adjacent areas is less than 10 - 30, these areas are regarded as a whole and recorded as a large area. During recording, the area with the highest heat value is preferentially recorded, then the large area is recorded, and then the individual small areas are recorded from high to low according to the arrangement of the heat values.

[0068] Since the on-site audience cannot be evenly distributed around the stage, there will be a large deviation in the heat values collected by the atmosphere monitoring unit. To make the key recording more accurate, this technical solution first divides the area in front of the stage. Taking the rotation angle of the camera at the top of the stage as the reference, the area in front of the stage is divided into 12 areas, and two noise decibel sensors are installed in each area. During measurement, the values of the two noise decibel sensors are first measured, and then the two are added and divided by 2 to obtain the average decibel value of the area. Then this average decibel value is converted into a heat value, which is the heat value of the area. When the heat value of a certain area exceeds the predetermined threshold, the area is key-collected through the video acquisition unit;

[0069] In order to ensure minimizing the loss of wonderful scenes as much as possible, this technical solution also plans the recording path of the camera on the top of the stage. The camera on the top of the stage is located on the central axis of the stage. It can rotate 90° to the left and right with the central axis of the stage as the center. Normally, after receiving the signal, the host sorts each area according to the magnitude of the heat value of each area, and then selects several areas for recording according to the arrangement of the heat values from high to low. However, when there are areas with similar heat values on both sides of the central axis of the stage, that is, the difference between the heat values of the two areas is less than 10 - 30, then taking the central axis of the stage as a mark, the camera on the top of the stage will preferentially record the area closest to the central axis of the stage. If the difference between the heat values of the two areas is large, then the recording will be carried out in order of the heat value from high to low;

[0070] When more than one area exceeds the predetermined threshold, the camera on the top of the stage first records the area with the highest heat value, and then selects and records each area according to the arrangement of the heat values from high to low. However, when the difference between the heat values of more than two adjacent areas is less than 10 - 30, during recording, these areas are regarded as a whole, denoted as a large area. If the heat value difference of a single area is large, the single area is still regarded separately. At this time, during recording, the area with the highest heat value is preferentially recorded, then the large area is recorded, and then the single small areas are recorded according to the arrangement of the heat values from high to low. This can minimize the loss of wonderful scenes caused by the movement of the camera on the top of the stage.

[0071] It should be noted that during the movement of the camera on the top of the stage, if it passes through an area with a low heat value, the camera on the top of the stage does not work at this time, so the picture will not be recorded, which can effectively reduce the later processing volume.

[0072] When this technical solution is working, in addition to focusing on recording the performers on the stage, it can also focus on recording the on-site audience. The recording can be carried out according to preset conditions. The recording of the on-site audience is based on the atmosphere around the stage, that is, the information collected by the atmosphere monitoring unit;

[0073] Specifically, first, the atmosphere monitoring unit is used to detect the noise decibels on-site, and then the detected array is converted into a heat value. 1 decibel = (1 - 20) heat values. The conversion rate between decibels and heat values can be set manually. By default, 1 decibel = 10 heat values. When the heat value on-site exceeds 650, the control unit controls the video acquisition unit to record the on-site situation.

[0074] The preset mode includes close-up selection. A Bluetooth beacon is placed on a specific person. When the specific person steps onto the stage, the Bluetooth AOA locator will send the position of the specific person to the host in real time according to the position of the Bluetooth beacon. The host will track and shoot the specific target through the front-stage acquisition camera and the side-stage acquisition camera based on the position of the specific person.

[0075] During the performance interval or after the performance, there is often an environment where the host conducts an interview. By setting the close-up selection and placing the Bluetooth beacon on the host, when the host is conducting an interview, the video acquisition unit can focus on recording the host and the interviewee.

[0076] During the performance, sometimes it is also necessary to record a specific actor. At this time, just place the Bluetooth beacon on the specific person to focus on recording the specific person.

[0077] The host also includes a face recognition module, which discriminates the gender and age of the on-site audience. When recording, the host focuses on recording specific groups according to different age groups and genders.

[0078] The face recognition module is also used to recognize the number of people.

[0079] For different numbers of people, the generated noise is also different. In order to capture the key pictures more accurately, this technical solution also sets a face recognition module to recognize the number of on-site audience through the face recognition module, and then adaptively adjust the preset heat value according to the number of on-site audience.

[0080] Specifically, by default, when the number of people in each area is 10, the preset heat value threshold for each area is 650. When the number of people in each area decreases by 1, the threshold is lowered by 20. When the number of people in each area increases by 1, the threshold is increased by 20.

[0081] To achieve a better publicity effect, it is necessary to conduct specific publicity for specific groups. This technical solution can discriminate the gender and age of the on-site audience during recording through the face recognition module, and record specific groups, so that there is no need to edit for specific groups during the later editing process, greatly reducing the workload.

[0082] It should be noted that:

[0083] More specific examples of the computer-readable storage medium may include a portable computer disk, a hard disk, an erasable programmable read-only memory (EPROM or flash memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. The above computer-readable medium may be included in the above electronic device; or may exist separately without being assembled into the electronic device.

[0084] The above computer-readable medium carries one or more programs, and when the one or more programs are executed by the electronic device, the electronic device can implement the solutions provided by the above method embodiments.

[0085] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages or combinations thereof. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network - including a local area network (LAN) or a wide area network (WAN) - or may be connected to an external computer (e.g., connected through the Internet using an Internet service provider).

[0086] In this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0087] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An automatic tracking recording and broadcasting control system based on wireless communication, characterized in that: It includes a video acquisition unit that acquires the on-site and stage images through the video acquisition unit, which includes a front-stage acquisition camera, side-stage acquisition cameras, and a top-stage acquisition camera; A voice acquisition unit: acquires the sound information of the stage site through the voice acquisition unit; An atmosphere monitoring unit: monitors and judges the on-site atmosphere through the atmosphere monitoring unit; A personnel positioning unit: positions the personnel on the stage through the personnel positioning unit to facilitate the tracking shooting by the video acquisition unit; A control unit: controls the on-site equipment through the control unit and classifies and stores the recorded videos, which includes a first storage module, a second storage module, and a host; The video acquisition unit has two working states. One is the normal working state: when the performance starts, the video acquisition unit works until the performance ends. During this process, the acquired video materials are stored in the first storage module, and the cameras at each position are in a static working state; The second is the key recording state: according to the preset mode, the video acquisition unit focuses on acquiring the key areas or specific characters. The acquired video materials are stored in the second storage module. During this process, the cameras at each position will track and shoot according to the movement of the specific target; The preset mode includes timed selection. After the performance starts, the host controls the video acquisition unit to conduct key recording of the on-site images for a period of time according to the preset time and preset conditions; The preset conditions include the stage surrounding atmosphere. The atmosphere monitoring unit detects the sound around the stage. According to the magnitude of the decibel, the greater the decibel, the more enthusiastic the atmosphere is judged to be, and the smaller the decibel, the colder the atmosphere is judged to be. After the performance starts, the host starts timing. At regular intervals, the images of the area with the most enthusiastic stage surrounding atmosphere are acquired based on the data collected by the atmosphere monitoring unit.

2. The automatic tracking recording and broadcasting control system based on wireless communication according to claim 1, characterized in that: The front-stage acquisition camera is located at the front side of the stage and is used to acquire the video content from the front-stage perspective; The side-stage acquisition cameras are respectively arranged on both sides of the stage and are used to acquire the video content from the side-stage perspective; The top-stage acquisition camera is located at the top of the stage and is used to acquire the video content around the stage.

3. The automatic tracking recording and broadcasting control system based on wireless communication according to claim 1, wherein: The atmosphere monitoring unit consists of several noise decibel sensors, which are evenly distributed around the stage. The noise decibel sensors acquire the noise decibel information around the stage; 4. The automatic tracking recording and broadcasting control system based on wireless communication according to claim 1, characterized in that: The personnel positioning unit includes a Bluetooth AOA locator and Bluetooth beacons. The Bluetooth beacons are installed on the personnel to be positioned. The Bluetooth AOA locator is used to real-time position the personnel on the stage. After receiving the personnel position information, the control unit adjusts the video acquisition unit according to the real-time position of the stage personnel to capture specific images; 5. The automatic tracking recording and broadcasting control system based on wireless communication according to claim 1, wherein: The control unit includes a wireless signal generator and a wireless signal receiver. The host conducts information interaction with the on-site equipment through wireless signals and classifies and stores the video materials acquired by the video acquisition unit through the first storage module and the second storage module.

6. The automatic tracking recording and broadcasting control system based on wireless communication according to claim 1, wherein: The selection of the time period of the preset time is determined according to the program flow determined during the rehearsal. According to the pre-rehearsed program flow, the programs or performers to be recorded are selected for key recording; The preset condition is a performer or prop with a Bluetooth beacon carrying different information. According to the different performance programs, Bluetooth beacons carrying different information are set for the performers or props. During the performance, the performers need to perform on the stage. When the host receives that the Bluetooth beacon has reached the predetermined position, the host adjusts the video acquisition unit, and the video acquisition unit is used to focus on recording a specific target or a specific program.

7. An automatic tracking recording and broadcasting control system based on wireless communication according to claim 6, characterized in that: The preset mode includes condition selection. When the host receives the data collected by the atmosphere monitoring unit and the heat value around the stage exceeds a certain threshold, the host controls the video acquisition unit to collect, and the camera installed on the top of the stage records the area in front of the stage where the heat value exceeds the threshold; For the division of the area, the camera installed on the top of the stage is installed on the central axis of the stage and can rotate 180°. Taking the rotation angle of the camera installed on the top of the stage as the reference object, the area in front of the stage is divided, and the included angle of each area is 15°; When multiple areas exceeding the threshold appear around the stage at the same time, the host first sorts the areas exceeding the threshold according to the size based on the data measured by the atmosphere monitoring unit. First, the camera installed on the top of the stage is adjusted to the area with the hottest heat value for collection, and then the areas exceeding the threshold are recorded in sequence according to the sorting of the heat values; When all the areas around the stage exceed the threshold, after receiving the signal, the host sorts the areas according to the size of the heat values of each area, and then selects several areas for selective recording from high to low according to the arrangement of the heat values, and abandons the recording of the areas with lower rankings; Path planning of the camera during multi-area recording: Taking the position of the camera installed on the top of the stage as the origin and the central axis of the stage as the axis, two mutually mirror-image first coordinate systems and second coordinate systems are established. Both the first coordinate system and the second coordinate system contain 6 areas. When a threshold-exceeding area appears in each of the first coordinate system and the second coordinate system, if the difference between the heat values of the two areas is less than 10-30, then taking the central axis of the stage as the mark, the camera installed on the top of the stage preferentially records the area closest to the central axis of the stage. If the difference between the heat values of the two areas is greater than 30, the recording is carried out in sequence according to the high and low heat values during recording; When multiple areas exceed the predetermined threshold and the difference between the heat values of two or more adjacent areas is less than 10-30, these areas are regarded as a whole, denoted as a large area. During recording, the area with the highest heat value is preferentially recorded, then the large area is recorded, and then the individual small areas are recorded from high to low according to the arrangement of the heat values.

8. An automatic tracking live recording and broadcasting control system based on wireless communication according to claim 7, characterized in that: The preset mode includes close-up selection. A Bluetooth beacon is placed on a specific person. When the specific person steps onto the stage, the Bluetooth AOA locator will send the position of the specific person to the host in real time according to the position of the Bluetooth beacon. The host will track and shoot the specific target through the front-stage acquisition camera and the side-stage acquisition camera based on the position of the specific person.

9. The automatic tracking recording and broadcasting control system based on wireless communication according to claim 8, characterized in that: The host also includes a face recognition module, which is used to identify the gender and age of the on-site audience. When recording, the host focuses on recording specific groups according to different age groups and genders. The face recognition module is also used to identify the number of people, and the control module adjusts the threshold according to the change in the number of people. By default, when the number of people in each area is 10, the preset threshold value of the heat value of each area is 650. When the number of people in each area decreases by 1, the threshold is lowered by 20. When the number of people in each area increases by 1, the threshold is increased by 20.

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