CN114979437A - Classroom recording and broadcasting system and control method thereof - Google Patents
Classroom recording and broadcasting system and control method thereof Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
- F16M11/425—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels along guiding means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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Abstract
The invention relates to a classroom recording and broadcasting system, which comprises a recording and broadcasting component for recording and broadcasting, a track arranged in a classroom and a driving component connected with the recording and broadcasting component and used for driving the recording and broadcasting component to move along the track, and is characterized in that: the controller can calculate and acquire the shortest moving path from the current position of the recording and broadcasting assembly to the specified recording and broadcasting position according to the current position of the recording and broadcasting assembly and the specified recording and broadcasting position, and controls the driving assembly to drive the recording and broadcasting assembly to move to the specified recording and broadcasting position on the track according to the shortest moving path. The classroom recording and broadcasting control method applying the classroom recording and broadcasting system is further disclosed. Has the advantages that: the recording and broadcasting angle of the classroom recording and broadcasting system is more comprehensive; in addition, the recording and broadcasting component can move to the specified recording and broadcasting position in the shortest time, the recording and broadcasting response speed is improved, and the watching experience after recording and broadcasting is further improved.
Description
Technical Field
The invention relates to the technical field of recording and broadcasting, in particular to a classroom recording and broadcasting system and a control method thereof.
Background
The recording and playing system can integrate and synchronously record the video and audio recorded on site and the image signals of electronic equipment (including computers, video exhibition stands and the like) to generate a standardized streaming media file for external live broadcasting, storage, later editing and on-demand playing. Current recording and broadcasting systems are commonly used in the field of education, for example: recording and broadcasting the public classes; the recorded broadcast subassembly of one or more fixed mounting in the classroom is adopted usually to current classroom recorded broadcast system and is carried out the recorded broadcast, because recorded broadcast subassembly position can not remove, consequently the angle of shooting is limited, can not shoot whole classroom, and the recorded broadcast effect is not good.
In order to solve the above technical problem, chinese patent application No. CN202011575986.7 (application publication No. CN112682647A) discloses a recording and playing device and a control system for classroom teaching, wherein although the recording and playing device can be driven by a driving servo motor to drive a rotating ring to rotate, so as to drive a movable block and a recording and playing device body to rotate together for recording along a track, the recording and playing device still has the following limitations: because the recording and broadcasting device body in the recording and broadcasting device is annular, the moving path of the recording and broadcasting device body is only 1, so that the problem of the moving path does not need to be considered when the recording and broadcasting device body is driven to rotate, but in the actual recording and broadcasting process, in order to adapt to different shooting requirements, the track can also be a track different from the recording and broadcasting device, so that when the recording and broadcasting device body has a plurality of moving paths, if the moving path is not considered according to the method in the recording and broadcasting device, time delay can easily exist, the recording and broadcasting response is slow, and finally the recording and broadcasting of important information on a class is delayed, and further improvement is needed.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a classroom recording and broadcasting system that can make a recording and broadcasting component move to a specified recording and broadcasting position in the shortest time, and further make recording and broadcasting response fast, aiming at the above prior art.
The second technical problem to be solved by the present invention is to provide a classroom recording and broadcasting control method using the classroom recording and broadcasting system in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the classroom recording and broadcasting system comprises a recording and broadcasting component for recording and broadcasting, a track arranged in a classroom and a driving component which is connected with the recording and broadcasting component and is used for driving the recording and broadcasting component to move along the track, and is characterized in that: the controller can calculate and acquire the shortest moving path from the current position of the recording and broadcasting assembly to the specified recording and broadcasting position according to the current position of the recording and broadcasting assembly and the specified recording and broadcasting position, and controls the driving assembly to drive the recording and broadcasting assembly to move to the specified recording and broadcasting position on the track according to the shortest moving path.
In order to make the calculation of the shortest path simpler and improve the processing capacity of the controller, the track is a closed-loop track, a plurality of recording and broadcasting position points are arranged on the closed-loop track at intervals, and the distances between the adjacent recording and broadcasting position points are equal.
Preferably, the designated recording and playing position of the recording and playing component is located at any recording and playing position point.
Preferably, the track is square or circular or checkered or honeycombed.
Furthermore, the recording and broadcasting component comprises a recording and broadcasting camera and a base connected with the recording and broadcasting camera; the drive assembly comprises a drive source and a transmission assembly, and the drive source is connected with the base through the transmission assembly.
The technical solution adopted by the present invention to solve the second technical problem is as follows: a classroom recording and broadcasting control method applying the classroom recording and broadcasting system is characterized in that: the following two cases are distinguished:
(1) when one recording and broadcasting component is arranged on the track, the classroom recording and broadcasting control method comprises the following steps:
step 1, after the recorded broadcast is triggered, a recorded broadcast component is opened for recorded broadcast, and the step 2 is entered;
step 3, judging whether the number of the specified recorded broadcast tasks in the set time period is more than one, if so, sequencing the trigger time of the specified recorded broadcast tasks according to the sequence from front to back, acquiring the shortest moving path between the specified recorded broadcast position in the first specified recorded broadcast task and the current position of the recorded broadcast component through a controller, and transferring to the step 4; if not, acquiring the shortest moving path between the specified recording and broadcasting position in the current specified recording and broadcasting task and the current position of the recording and broadcasting assembly through the controller, and turning to the step 5;
step 4, the controller controls the driving assembly to enable the recorded broadcast assembly to move to the specified recorded broadcast position according to the shortest moving path, meanwhile, in the process that the recorded broadcast assembly moves to the specified recorded broadcast position according to the shortest moving path, the controller judges whether a recorded broadcast canceling request is received or not in real time, if yes, the controller controls the driving assembly to enable the recorded broadcast assembly to stop moving, the shortest moving path between the current stopping position of the recorded broadcast assembly and the specified recorded broadcast position in the next specified recorded broadcast task is obtained through the controller, and the step 4 is executed again; if not, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path, after the current specified recording and broadcasting task is executed, the next recording and broadcasting task is executed by adopting the same method as the current specified recording and broadcasting task, and the step 2 is carried out until all tasks are executed;
step 5, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path, meanwhile, in the process that the recording and broadcasting assembly moves to the specified recording and broadcasting position according to the shortest moving path, the controller judges whether a recording and broadcasting canceling request is received in real time, if yes, the controller controls the driving assembly to enable the recording and broadcasting assembly to stop moving, and the step 2 is carried out; if not, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path to execute the current specified recording and broadcasting task, and the step 2 is switched to after the current specified recording and broadcasting task is completed;
step 6, judging whether the recording and broadcasting are finished, if so, finishing; if not, continuing to execute the step 2;
(2) when more than one recording and broadcasting component is arranged on the track, the classroom recording and broadcasting control method comprises the following steps:
step a, after the recorded broadcast is triggered, opening all recorded broadcast components to carry out recorded broadcast, and enabling all recorded broadcast components to form an idle set, wherein each recorded broadcast component in the idle set can move to an appointed recorded broadcast position to execute an appointed recorded broadcast task by controlling a driving component through a controller, and entering the step b;
b, judging whether the controller receives the appointed recording and broadcasting task, if so, switching to the step c; if not, each recording and broadcasting component continues to be in the current position for recording and broadcasting, and the step i is carried out;
step c, judging whether the number of the appointed recording and broadcasting tasks in the set time is more than one, if so, switching to the step d; if not, the step h is carried out;
d, sequencing the trigger time of the specified recorded broadcast tasks according to the sequence from front to back, acquiring the shortest moving path between the specified recorded broadcast position in the first specified recorded broadcast task and the position of each recorded broadcast component in the current idle set through a controller, selecting the minimum value in all the shortest moving paths, taking the recorded broadcast component corresponding to the minimum value as the recorded broadcast component for executing the first specified recorded broadcast task, and transferring to the step e;
e, the controller controls the driving assembly to enable the recording and broadcasting assembly executing the first specified recording and broadcasting task to move to a specified recording and broadcasting position according to the shortest moving path, the recording and broadcasting assembly currently executing the first specified recording and broadcasting task is removed from the idle set and the idle set is updated, and the step g is carried out; meanwhile, in the process that the recording and broadcasting component executing the first specified recording and broadcasting task moves to the specified recording and broadcasting position according to the shortest moving path, the controller judges whether a recording and broadcasting canceling request is received in real time, if so, the step f is carried out; if not, the controller controls the driving component to enable the recording and broadcasting component executing the first specified recording and broadcasting task to continue to move to the specified recording and broadcasting position according to the shortest moving path, after the first specified recording and broadcasting task is completed, the recording and broadcasting component executing the first specified task is added into the current idle set again and updates the current idle set, and the step g is carried out;
f, the controller controls the driving assembly to enable the recording and broadcasting assembly executing the first specified recording and broadcasting task to stop moving, meanwhile, the recording and broadcasting assembly stopping moving is added into the idle set again, and the step g is shifted to;
step g, the controller executes the next specified recording and broadcasting task according to the method which is the same as the method for specifying the first specified recording and broadcasting task until all specified recording and broadcasting tasks are executed, and then the step b is carried out;
step h, the controller acquires the shortest moving path between the specified recording and broadcasting position in the current specified recording and broadcasting task and the position of each recording and broadcasting component in the current idle set, selects the minimum value in all the shortest moving paths, takes the recording and broadcasting component corresponding to the minimum value as the recording and broadcasting component for executing the current specified recording and broadcasting task, controls the driving component to enable the recording and broadcasting component for executing the current specified recording and broadcasting task to move to the specified recording and broadcasting position according to the shortest moving path, eliminates the recording and broadcasting component for executing the current specified recording and broadcasting task from the idle set, updates the idle set, and shifts to the step b; meanwhile, in the process that the recorded broadcast component executing the current specified recorded broadcast task moves to the specified recorded broadcast position according to the shortest moving path, the controller judges whether a recorded broadcast canceling request is received in real time, if so, the controller controls the driving component to enable the recorded broadcast component executing the current specified recorded broadcast task to stop moving, and meanwhile, the recorded broadcast component stopping moving is added into the current idle set again and updates the current idle set, and the step b is carried out; if not, the controller controls the driving component to enable the recording and broadcasting component executing the current specified recording and broadcasting task to continuously move to the specified recording and broadcasting position according to the shortest moving path, after the current specified recording and broadcasting task is executed, the recording and broadcasting component executing the current specified recording and broadcasting task is added into the current idle set again, the current idle set is updated, and the step b is carried out;
step i, judging whether recording and broadcasting are finished, if so, finishing; if not, continuing to execute the step b.
Further, each recording and broadcasting component is located at a default initial position when recording and broadcasting are started in step 1 and/or step a, and the shortest moving path of the recording and broadcasting component moving to the initial position is calculated and obtained through the controller after recording and broadcasting are finished in step 6 and/or step i, and the controller controls the driving component to enable the recording and broadcasting component to return to the default initial position according to the shortest moving path.
Further, the method for acquiring the designated recording and broadcasting task in the step 2 and the step b comprises the following steps:
by dividing the interior of a classroom into a plurality of group areas and arranging a key, a sound detection module or an action detection module connected with a controller in each group area, once the controller receives a trigger signal of the key, the sound detection module or the action detection module, the controller receives an appointed recording and broadcasting task;
in addition, the recording and broadcasting position points corresponding to each group area are preset in the controller, and once the controller receives the specified recording and broadcasting task, the recording and broadcasting position points corresponding to the specified recording and broadcasting task can be obtained.
Further, the method for determining the completion of any specified recording and broadcasting task execution comprises the following steps: and the controller controls the driving component to enable the recorded broadcast component to move to the specified recorded broadcast position according to the shortest moving path, and after the recorded broadcast component receives the recorded broadcast canceling request in the process of moving to the specified recorded broadcast position through the shortest moving path, or the controller controls the driving component to enable the recorded broadcast component to move to the specified recorded broadcast position according to the shortest moving path and the recorded broadcast time at the specified recorded broadcast position reaches the preset time, namely the controller determines that the specified recorded broadcast task is executed and completed.
Compared with the prior art, the invention has the advantages that: on one hand, the classroom recording and broadcasting system controls the recording and broadcasting assembly to slide on the track through the controller, so that the recording and broadcasting angle is more comprehensive; on the other hand, the shortest moving path is obtained by screening from at least two moving paths between the current position of the recorded broadcast assembly and the specified recorded broadcast position through the controller, so that the recorded broadcast assembly can move to the specified recorded broadcast position in the shortest time by the automatic control method, the recorded broadcast response speed is improved, and the watching experience of the recorded broadcast video is further improved.
Drawings
FIG. 1 is a schematic view of a circular track in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a honeycomb track structure according to an embodiment of the present invention;
fig. 3 is a flowchart of a classroom recording and broadcasting control method when the recording and broadcasting components on the track are one according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
As shown in fig. 1 to 2, the classroom recording and broadcasting system in this embodiment includes a recording and broadcasting assembly 1 for recording and broadcasting, a track 2 disposed in a classroom, a driving assembly connected to the recording and broadcasting assembly 1 for driving the recording and broadcasting assembly 1 to move along the track 2, and a controller connected to the driving assembly. The controller can calculate and acquire the shortest moving path from the current position of the recording and broadcasting component 1 to the specified recording and broadcasting position according to the current position of the recording and broadcasting component 1 and the specified recording and broadcasting position, and controls the driving component to drive the recording and broadcasting component 1 to move to the specified recording and broadcasting position on the track 2 according to the shortest moving path.
In order to ensure that the recording and broadcasting component 1 can record and broadcast the whole classroom in all directions, the track 2 is preferably a closed loop track, which is most common in a square or round or field-shaped or honeycomb shape, and in addition, in order to make the calculation process of the shortest moving path simpler, the recording and broadcasting component 1 can be controlled to accurately record and broadcast; in this embodiment, a plurality of recording and broadcasting position points are arranged on the track 2 at intervals, and the distances between adjacent recording and broadcasting position points are equal; in addition, the designated recording and broadcasting position of the recording and broadcasting component 1 is positioned at any recording and broadcasting position point.
In this embodiment, the track 2 may be circular as shown in fig. 1, the recording and playing position points on the track 2 are respectively C1-C8, the distance between each recording and playing position point is the same, and the track 2 is specifically arranged on the top wall of a classroom; the track 2 may also be honeycomb-shaped as shown in fig. 2, and the recording and playing position points on the track 2 are a1 to a12, respectively, and the distance between each recording and playing position point is the same. The recording and broadcasting component 1 comprises a recording and broadcasting camera and a base connected with the recording and broadcasting camera; the driving assembly comprises a driving source and a transmission assembly, the driving source is connected with the base through the transmission assembly, the driving source is usually a motor, and the transmission assembly can be in gear transmission or belt transmission.
The controller is a computer on a platform, the recorded broadcast component 1 is connected with a platform area (or a designated area) through a network, when interaction with other areas is needed, the recorded broadcast component 1 is controlled to move to the designated area, (the recorded broadcast component 1 also moves to the selected area quickly according to the rule of shortest distance and least time consumption), the recorded broadcast component 1 automatically establishes network connection with the area, human-computer activity information of the area is collected and transmitted to a host, simulation modeling is synchronously carried out, and a 3D holographic stereo projection technology is used for synchronously presenting a human-computer activity scene in the platform area (or the designated area) in a stereo mode; in addition, the platform area (or the designated area) can synchronously control equipment in the selected area in the activity scene of the three-dimensional presentation, and can perform on-site synchronous related editing activities such as screen capture, increase and decrease, magnification, reduction and the like on characters or pictures in the selected area, thereby supporting recording and broadcasting, supporting the three-dimensional presentation in different places and supporting staggered-time broadcasting.
In order to realize classroom recording and broadcasting, the classroom recording and broadcasting control method in this embodiment is divided into the following two cases:
(1) when there is one recording and playing component on the track, as shown in fig. 3, the classroom recording and playing control method includes the following steps:
step 1, after the recorded broadcast is triggered, a recorded broadcast component is opened for recorded broadcast, and the step 2 is entered;
step 3, judging whether the number of the specified recorded broadcast tasks in the set time period is more than one, if so, sequencing the trigger time of the specified recorded broadcast tasks according to the sequence from front to back, acquiring the shortest moving path between the specified recorded broadcast position in the first specified recorded broadcast task and the current position of the recorded broadcast component through a controller, and transferring to the step 4; if not, acquiring the shortest moving path between the specified recording and broadcasting position in the current specified recording and broadcasting task and the current position of the recording and broadcasting assembly through the controller, and turning to the step 5;
step 4, the controller controls the driving assembly to enable the recorded broadcast assembly to move to the specified recorded broadcast position according to the shortest moving path, meanwhile, in the process that the recorded broadcast assembly moves to the specified recorded broadcast position according to the shortest moving path, the controller judges whether a recorded broadcast canceling request is received or not in real time, if yes, the controller controls the driving assembly to enable the recorded broadcast assembly to stop moving, the shortest moving path between the current stopping position of the recorded broadcast assembly and the specified recorded broadcast position in the next specified recorded broadcast task is obtained through the controller, and the step 4 is executed again; if not, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path, after the current specified recording and broadcasting task is executed, the next recording and broadcasting task is executed by adopting the same method as the current specified recording and broadcasting task, and the step 2 is carried out until all tasks are executed;
step 5, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path, meanwhile, in the process that the recording and broadcasting assembly moves to the specified recording and broadcasting position according to the shortest moving path, the controller judges whether a recording and broadcasting canceling request is received in real time, if yes, the controller controls the driving assembly to enable the recording and broadcasting assembly to stop moving, and the step 2 is carried out; if not, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path to execute the current specified recording and broadcasting task, and the step 2 is switched to after the current specified recording and broadcasting task is completed;
step 6, judging whether the recording and broadcasting are finished, if so, finishing; if not, continuing to execute the step 2;
(2) when more than one recording and broadcasting component is arranged on the track, the classroom recording and broadcasting control method comprises the following steps:
step a, after the recorded broadcast is triggered, opening all recorded broadcast components to carry out recorded broadcast, and enabling all recorded broadcast components to form an idle set, wherein each recorded broadcast component in the idle set can move to an appointed recorded broadcast position to execute an appointed recorded broadcast task by controlling a driving component through a controller; entering the step b;
the step of triggering recording and broadcasting refers to starting a recording and broadcasting starting signal after the course starts; the triggering mode in the step 1 is the same as that of the triggering mode;
b, judging whether the controller receives the appointed recording and broadcasting task, if so, switching to the step c; if not, each recording and broadcasting component continues to be in the current position for recording and broadcasting, and the step i is carried out;
step c, judging whether the number of the appointed recording and broadcasting tasks in the set time is more than one, if so, switching to the step d; if not, the step h is carried out;
the set time is the judgment time of the number of the specified recording and broadcasting tasks determined according to experience, and the time is not suitable to be too long, and the too long time influences the response time of executing the specified recording and broadcasting tasks; the common set time is 30-60 s, so that the appointed recording and broadcasting task in the preset time can be judged; once the preset time is exceeded, the appointed recording and broadcasting task in the current set time is executed by default;
d, sequencing the trigger time of the specified recorded broadcast tasks according to the sequence from front to back, acquiring the shortest moving path between the specified recorded broadcast position in the first specified recorded broadcast task and the position of each recorded broadcast component in the current idle set through a controller, selecting the minimum value in all the shortest moving paths, taking the recorded broadcast component corresponding to the minimum value as the recorded broadcast component for executing the first specified recorded broadcast task, and transferring to the step e;
e, the controller controls the driving assembly to enable the recording and broadcasting assembly executing the first specified recording and broadcasting task to move to a specified recording and broadcasting position according to the shortest moving path, the recording and broadcasting assembly currently executing the first specified recording and broadcasting task is removed from the idle set and the idle set is updated, and the step g is carried out; meanwhile, in the process that the recording and broadcasting component executing the first specified recording and broadcasting task moves to the specified recording and broadcasting position according to the shortest moving path, the controller judges whether a recording and broadcasting canceling request is received in real time, if so, the step f is carried out; if not, the controller controls the driving component to enable the recording and broadcasting component executing the first specified recording and broadcasting task to continuously move to the specified recording and broadcasting position according to the shortest moving path, after the first specified recording and broadcasting task is completed, the recording and broadcasting component executing the first specified task is added into the current idle set again and updates the current idle set, and the step g is carried out;
f, the controller controls the driving assembly to enable the recording and broadcasting assembly executing the first specified recording and broadcasting task to stop moving, meanwhile, the recording and broadcasting assembly stopping moving is added into the idle set again, and the step g is shifted to;
step g, the controller executes the next specified recording and broadcasting task according to the method which is the same as the method for specifying the first specified recording and broadcasting task until all specified recording and broadcasting tasks are executed, and then the step b is carried out;
step h, the controller acquires the shortest moving path between the specified recording and broadcasting position in the current specified recording and broadcasting task and the position of each recording and broadcasting component in the current idle set, selects the minimum value in all the shortest moving paths, takes the recording and broadcasting component corresponding to the minimum value as the recording and broadcasting component for executing the current specified recording and broadcasting task, controls the driving component to enable the recording and broadcasting component for executing the current specified recording and broadcasting task to move to the specified recording and broadcasting position according to the shortest moving path, eliminates the recording and broadcasting component for executing the current specified recording and broadcasting task from the idle set, updates the idle set, and shifts to the step b; meanwhile, in the process that the recorded broadcast component executing the current specified recorded broadcast task moves to the specified recorded broadcast position according to the shortest moving path, the controller judges whether a recorded broadcast canceling request is received in real time, if so, the controller controls the driving component to enable the recorded broadcast component executing the current specified recorded broadcast task to stop moving, and meanwhile, the recorded broadcast component stopping moving is added into the current idle set again and updates the current idle set, and the step b is carried out; if not, the controller controls the driving component to enable the recording and broadcasting component executing the current specified recording and broadcasting task to continuously move to the specified recording and broadcasting position according to the shortest moving path, after the current specified recording and broadcasting task is executed, the recording and broadcasting component executing the current specified recording and broadcasting task is added into the current idle set again, the current idle set is updated, and the step b is carried out;
step i, judging whether recording and broadcasting are finished, if so, finishing; if not, continuing to execute the step b;
the recorded broadcast in the step i means that the recorded broadcast is closed after the course is finished; the above-described step 6 is terminated in the same manner as in this step.
When the number of the recorded broadcast components on the track is more than one, the recorded broadcast position point of the recorded broadcast component which is not in the current idle set (namely, the recorded broadcast component which executes the specified recorded broadcast task at present) needs to be avoided when the shortest moving path is calculated, and in addition, one moving path with the same length can be selected when the shortest moving path is calculated.
And step 6 and/or step i, calculating and acquiring the shortest moving path of the recorded broadcast assembly moving to the initial position through the controller after the recorded broadcast is finished, and controlling the driving assembly through the controller to enable the recorded broadcast assembly to return to the default initial position according to the shortest moving path.
The method for acquiring the designated recording and broadcasting task in the step 2 and the step b comprises the following steps: by dividing the interior of a classroom into a plurality of group areas and arranging a key, a sound detection module or an action detection module connected with a controller in each group area, once the controller receives a trigger signal of the key, the sound detection module or the action detection module, the controller receives an appointed recording and broadcasting task; wherein the trigger signal of sound detection module indicates through sound detection module discernment sound or appointed word, and action detection module's trigger signal passes through action detection module and discerns appointed action, for example: lifting hands or standing, etc.; in addition, the recording and broadcasting position points corresponding to each group area are preset in the controller, and once the controller receives the specified recording and broadcasting task, the recording and broadcasting position points corresponding to the specified recording and broadcasting task can be obtained. In addition, the method for judging the completion of the execution of any specified recording and broadcasting task comprises the following steps: and the controller controls the driving component to enable the recorded broadcast component to move to the specified recorded broadcast position according to the shortest moving path after receiving the recorded broadcast canceling request or controls the driving component to enable the recorded broadcast component to move to the specified recorded broadcast position according to the shortest moving path and to enable the recorded broadcast time at the specified recorded broadcast position to reach a preset time (the preset time is the time when a signal triggering the specified recorded broadcast task disappears), namely the controller determines that the specified recorded broadcast task is executed completely.
When calculating the shortest moving path, there are the following ways:
in order to facilitate calculation, the acquiescent recording and broadcasting component is always positioned on a recording and broadcasting position point on a track, so that the number of the recording and broadcasting position points between the current recording and broadcasting position point of the recording and broadcasting component and the specified recording and broadcasting task can be calculated, and meanwhile, the shortest moving path can be determined by comparing the number of the recording and broadcasting position points due to the same distance between the adjacent recording and broadcasting position points;
because the recorded broadcast component may stop when the recorded broadcast component has not moved to the designated recorded broadcast task position point after receiving the recorded broadcast canceling request, the recorded broadcast component may not be located at any recorded broadcast position on the track at this time, the most common method is to obtain the distance between the actual position where the current recorded broadcast component is located and the next designated recorded broadcast task, but this method needs to set a positioning system for obtaining the actual position on the recorded broadcast component, so that the equipment installation is complex and the calculation process is complex, and in order to solve the technical problem, the controller controls the current recorded broadcast component to move to the recorded broadcast position point on the track which is closest to the current position after receiving the recorded broadcast canceling request, and then stops, so that the calculation is facilitated; or the controller immediately controls the recorded broadcast assembly to stop after receiving the recorded broadcast canceling request, and acquires the recorded broadcast position point closest to the current recorded broadcast assembly, namely calculates and acquires the shortest moving path between the recorded broadcast position point closest to the current recorded broadcast assembly and the specified recorded broadcast task.
In order to facilitate understanding of the classroom recording and broadcasting control method when the recording and broadcasting components on the track are one, it is assumed that the recording and broadcasting components 1 on the track 2 in fig. 1 are one, and the description is given by taking fig. 1 as an example, and it is assumed that the recording and broadcasting components are at a recording and broadcasting position point C1 during initialization, so that the equipment and installation and use costs can be greatly reduced by adopting the mode;
1. when the controller receives an appointed recording and broadcasting task within the set time T, the appointed recording and broadcasting task is as follows: when the recording and playing component 1 which needs to be initialized moves to the recording and playing position point C8 for recording and playing, two moving paths are obtained by the controller through calculation, the first moving path is from C1 → C8, and the second moving path is: c1 → C2 → C3 → C4 → C5 → C6 → C7 → C8, the controller determines that the shortest moving path is C1 → C8;
2. when the controller receives an appointed recording and broadcasting task within the set time T, the appointed recording and broadcasting task is as follows: when the recording and playing component 1 which needs to be initialized moves to the recording and playing position point C6 for recording and playing, two moving paths are calculated by the controller at this time, the first moving path is from C1 → C2 → C3 → C4 → C5 → C6, and the second moving path is: c1 → C8 → C7 → C6;
since the difference between the two movement paths is not very large, in order to make the selection of the movement path more accurate, the distance n between the adjacent recording and broadcasting position points is made equal, so that the movement distance between the recording and broadcasting assembly moving from the current position to the recording and broadcasting position point to be recorded and broadcast can be obtained by calculating the product of the number k of the recording and broadcasting position points between the current position of the recording and broadcasting assembly and the recording and broadcasting position point to be moved and the distance n between the adjacent recording and broadcasting position points, for example: the first moving path C1 → C2 → C3 → C4 → C5 → C6 has a moving distance of 5 n; the moving distance of the second moving path C1 → C8 → C7 → C6 is 3n, that is, the controller determines the moving distance with the minimum moving distance by comparison, so as to obtain the shortest moving path C1 → C8 → C7 → C6;
3. when the controller receives two specified recording and broadcasting tasks within the set time T, the two specified recording and broadcasting tasks are respectively as follows according to the sequence: the first designated recording and broadcasting task: when the recording and broadcasting component 1 needing initialization moves to the recording and broadcasting position point C7 for recording and broadcasting, the second designated recording and broadcasting task is as follows: moving to a recording and broadcasting position C5 for recording and broadcasting, at the moment, the controller acquires the shortest moving path C1 → C8 → C7 between the specified recording and broadcasting position in the first specified recording and broadcasting task and the current position of the recording and broadcasting component, the controller controls the driving component to enable the recording and broadcasting component to move to the specified recording and broadcasting position according to the shortest moving path, meanwhile, in the process that the recording and broadcasting component moves to the designated recording and broadcasting position according to the shortest moving path, if the controller receives the recording and broadcasting canceling request when moving to the recording and broadcasting position point C8, the controller controls the driving component to stop moving the recording and broadcasting component and stop the recording and broadcasting component at the recording and broadcasting position point C8, then the controller calculates the shortest moving path C8 → C7 → C6 → C5 between the position point C8 where the recording and playing component stops and the designated recording and playing position in the second designated recording and playing task, the controller controls the driving component to shift the recording and playing component to the recording and playing position point C5 according to the shortest moving path C8 → C7 → C6 → C5;
of course, the shortest moving path is determined by other specified recording and broadcasting tasks by the same method.
In order to facilitate understanding of the classroom recording and broadcasting control method when the recording and broadcasting component on the track is at least one, it is assumed that there are three recording and broadcasting components 1 on the track 2 in fig. 2, which are respectively a first recording and broadcasting component 11, a second recording and broadcasting component 12, and a third recording and broadcasting component 13, and the description is given by taking fig. 2 as an example, it is assumed that the first recording and broadcasting component 11 is located at a recording and broadcasting position point a2, the second recording and broadcasting component 12 is located at a recording and broadcasting position point a4, and the third recording and broadcasting component 13 is located at a recording and broadcasting position point a11 during initialization;
1. when the controller receives a designated recording and broadcasting task within the set time T: when the recording and broadcasting component is required to move to a recording and broadcasting position point A7 for recording and broadcasting;
in the first case, it is assumed that the first recording and broadcasting component 11, the second recording and broadcasting component 12, and the third recording and broadcasting component 13 are all in an initial state, and at this time, the idle set is { the first recording and broadcasting component 11, the second recording and broadcasting component 12, and the third recording and broadcasting component 13 }; calculating the shortest moving path between each recording and broadcasting component in the idle set and the current specified recording and broadcasting task, wherein the moving path of the first recording and broadcasting component 11 comprises: a2 → A1 → A6 → A7; a2 → a5 → A8(a6) → a 7; the moving path of the second recording and playing component 12 is as follows: a4 → a5 → A8(a6) → a 7; a4 → A9 → A8 → A7; the moving path of the third recording and playing component 13 is as follows: a11 → a12(A8) → a 7; that is, the controller determines that the shortest moving path is a11 → a12(A8) → a7, and at this time, the controller controls the third recording and playing component 13 to execute the currently specified recording and playing task; certainly, the moving path of each recording and broadcasting component can be various, but the optimal path is planned in the actual planning process, the conditions such as a detour and the like are not considered, and the method for selecting the moving path can adopt the method which is usually adopted in the prior art;
the second situation is that the first recording and broadcasting component 11 is supposed to execute the specified recording and broadcasting task currently, and the idle set is { the second recording and broadcasting component 12 and the third recording and broadcasting component 13}, that is, the shortest moving path between the second recording and broadcasting component 12 and the third recording and broadcasting component 13 and the specified recording and broadcasting task only needs to be calculated, and the recording and broadcasting position point where the first recording and broadcasting component 11 is located needs to be avoided when the shortest moving path is calculated;
when the first recording and broadcasting component 11 and the third recording and broadcasting component 13 are both in the state of executing the specified recording and broadcasting task, that is, the idle set is { the second recording and broadcasting component 12}, the shortest moving path between the second recording and broadcasting component 12 and the specified recording and broadcasting task only needs to be calculated, and the recording and broadcasting position points where the first recording and broadcasting component 11 and the third recording and broadcasting component 13 are located need to be avoided when the shortest moving path is calculated;
2. when the controller receives two specified recording and broadcasting tasks within the set time T, sequencing the trigger time of the two specified recording and broadcasting tasks, and sequencing the two specified recording and broadcasting tasks from front to back: and (3) specifying a recording and broadcasting task 1: recording and broadcasting the recorded and broadcast components to a recording and broadcast position point A8; and (3) specifying a recording and broadcasting task 2: recording and broadcasting the recorded and broadcast components to a recording and broadcast position point A9;
step a (1), assuming that the first recording and broadcasting component 11, the second recording and broadcasting component 12 and the third recording and broadcasting component 13 are all in an initial state, and at the moment, the idle set is { the first recording and broadcasting component 11, the second recording and broadcasting component 12 and the third recording and broadcasting component 13 }; calculating the shortest moving path between each recording and broadcasting component in the idle set and the designated recording and broadcasting task 1, wherein the shortest moving path between the first recording and broadcasting component 11 and the designated recording and broadcasting task 1 is as follows: a2 → A5 → A8; the shortest moving path between the second recording and playing component 12 and the designated recording and playing task 1 is: a4 → a5(a9) → A8; the shortest moving path between the third recording and broadcasting component 13 and the designated recording and broadcasting task 1 is as follows: a11 → A8; at this time, the controller determines that the shortest moving path is a11 → A8, that is, the controller controls the third recording and broadcasting component 13 to move to a recording and broadcasting position point A8 for recording and broadcasting, at this time, the third recording and broadcasting component 13 is removed from the idle set, and the updated idle set is { the first recording and broadcasting component 11, the second recording and broadcasting component 12 };
step a (2), calculating the shortest moving path between each recording and broadcasting component in the idle set and the designated recording and broadcasting task 2, wherein the shortest moving path between the first recording and broadcasting component 11 and the designated recording and broadcasting task 1 is as follows: a2 → A5 → A8(A4) → A9 or A2 → A3 → A4 → A9; the shortest moving path between the second recording and playing component 12 and the designated recording and playing task 1 is: a4 → a9, the controller determines that the shortest moving path for executing the designated recording and broadcasting task 2 is a4 → a9, that is, the controller controls the second recording and broadcasting component 12 to move to the recording and broadcasting position point a9 for recording and broadcasting, at this time, the second recording and broadcasting component 12 is removed from the idle set, and certainly, once the third recording and broadcasting component 13 receives a recording and broadcasting canceling request when executing the designated recording and broadcasting task 1 or after the third recording and broadcasting component 13 completes executing the designated recording and broadcasting task 1, the third recording and broadcasting component 13 rejoins the idle set to participate in the subsequent designated recording and broadcasting task.
Claims (9)
1. The classroom recording and broadcasting system comprises a recording and broadcasting component for recording and broadcasting, a track arranged in a classroom and a driving component which is connected with the recording and broadcasting component and is used for driving the recording and broadcasting component to move along the track, and is characterized in that: the controller can calculate and acquire the shortest moving path from the current position of the recording and broadcasting assembly to the specified recording and broadcasting position according to the current position of the recording and broadcasting assembly and the specified recording and broadcasting position, and controls the driving assembly to drive the recording and broadcasting assembly to move to the specified recording and broadcasting position on the track according to the shortest moving path.
2. The classroom recording and broadcasting system as claimed in claim 1, wherein: the track is a closed-loop track, a plurality of recording and broadcasting position points are arranged on the closed-loop track at intervals, and the distances between the adjacent recording and broadcasting position points are equal.
3. The classroom recording and broadcasting system as claimed in claim 2, wherein: the designated recording and broadcasting position of the recording and broadcasting component is positioned at any recording and broadcasting position point.
4. The classroom recording and broadcasting system as claimed in claim 3, wherein: the track is square or round or shaped like Chinese character 'tian' or honeycombed.
5. The classroom recording and broadcasting system according to any one of claims 1 to 4, wherein: the recorded broadcast component comprises a recorded broadcast camera and a base connected with the recorded broadcast camera; the drive assembly comprises a drive source and a transmission assembly, and the drive source is connected with the base through the transmission assembly.
6. A classroom recording and broadcasting control method using the classroom recording and broadcasting system as claimed in any one of claims 1 to 5, characterized in that: the following two cases are distinguished:
(1) when one recording and broadcasting component is arranged on the track, the classroom recording and broadcasting control method comprises the following steps:
step 1, after the recorded broadcast is triggered, a recorded broadcast component is opened for recorded broadcast, and the step 2 is entered;
step 2, judging whether the controller receives the appointed recording and broadcasting task, if so, turning to step 3; if not, the recording and broadcasting component continues to be in the current position for recording and broadcasting, and the step 6 is carried out;
step 3, judging whether the number of the specified recorded broadcast tasks in the set time period is more than one, if so, sequencing the trigger time of the specified recorded broadcast tasks according to the sequence from front to back, acquiring the shortest moving path between the specified recorded broadcast position in the first specified recorded broadcast task and the current position of the recorded broadcast component through a controller, and transferring to the step 4; if not, acquiring the shortest moving path between the specified recording and broadcasting position in the current specified recording and broadcasting task and the current position of the recording and broadcasting assembly through the controller, and turning to the step 5;
step 4, the controller controls the driving assembly to enable the recorded broadcast assembly to move to the specified recorded broadcast position according to the shortest moving path, meanwhile, in the process that the recorded broadcast assembly moves to the specified recorded broadcast position according to the shortest moving path, the controller judges whether a recorded broadcast canceling request is received or not in real time, if yes, the controller controls the driving assembly to enable the recorded broadcast assembly to stop moving, the shortest moving path between the current stopping position of the recorded broadcast assembly and the specified recorded broadcast position in the next specified recorded broadcast task is obtained through the controller, and the step 4 is executed again; if not, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path, after the current specified recording and broadcasting task is executed, the next recording and broadcasting task is executed by adopting the same method as the current specified recording and broadcasting task, and the step 2 is carried out until all tasks are executed;
step 5, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path, meanwhile, in the process that the recording and broadcasting assembly moves to the specified recording and broadcasting position according to the shortest moving path, the controller judges whether a recording and broadcasting canceling request is received in real time, if yes, the controller controls the driving assembly to enable the recording and broadcasting assembly to stop moving, and the step 2 is carried out; if not, the controller controls the driving assembly to enable the recording and broadcasting assembly to move to the specified recording and broadcasting position according to the shortest moving path to execute the current specified recording and broadcasting task, and the step 2 is switched to after the current specified recording and broadcasting task is completed;
step 6, judging whether the recording and broadcasting are finished, if so, finishing; if not, continuing to execute the step 2;
(2) when more than one recording and broadcasting component is arranged on the track, the classroom recording and broadcasting control method comprises the following steps:
step a, after the recorded broadcast is triggered, opening all recorded broadcast components to carry out recorded broadcast, and enabling all recorded broadcast components to form an idle set, wherein each recorded broadcast component in the idle set can move to an appointed recorded broadcast position to execute an appointed recorded broadcast task by controlling a driving component through a controller, and entering the step b;
b, judging whether the controller receives the appointed recording and broadcasting task, if so, switching to the step c; if not, each recording and broadcasting component continues to be in the current position for recording and broadcasting, and the step i is carried out;
step c, judging whether the number of the appointed recording and broadcasting tasks in the set time is more than one, if so, switching to the step d; if not, the step h is carried out;
d, sequencing the trigger time of the specified recorded broadcast tasks according to the sequence from front to back, acquiring the shortest moving path between the specified recorded broadcast position in the first specified recorded broadcast task and the current position of each recorded broadcast component in the current idle set through a controller, selecting the minimum value in all the shortest moving paths, taking the recorded broadcast component corresponding to the minimum value as the recorded broadcast component for executing the first specified recorded broadcast task, and transferring to the step e;
e, the controller controls the driving assembly to enable the recording and broadcasting assembly executing the first specified recording and broadcasting task to move to a specified recording and broadcasting position according to the shortest moving path, the recording and broadcasting assembly currently executing the first specified recording and broadcasting task is removed from the idle set and the idle set is updated, and the step g is carried out; meanwhile, in the process that the recording and broadcasting component executing the first specified recording and broadcasting task moves to the specified recording and broadcasting position according to the shortest moving path, the controller judges whether a recording and broadcasting canceling request is received in real time, if so, the step f is carried out; if not, the controller controls the driving component to enable the recording and broadcasting component executing the first specified recording and broadcasting task to continuously move to the specified recording and broadcasting position according to the shortest moving path, after the first specified recording and broadcasting task is completed, the recording and broadcasting component executing the first specified task is added into the current idle set again and updates the current idle set, and the step g is carried out;
f, the controller controls the driving assembly to enable the recording and broadcasting assembly executing the first specified recording and broadcasting task to stop moving, meanwhile, the recording and broadcasting assembly stopping moving is added into the idle set again, and the step g is shifted to;
step g, the controller executes the next specified recording and broadcasting task according to the method which is the same as the method for specifying the first specified recording and broadcasting task until all specified recording and broadcasting tasks are executed, and then the step b is carried out;
step h, the controller acquires the shortest moving path between the specified recording and broadcasting position in the current specified recording and broadcasting task and the position of each recording and broadcasting component in the current idle set, selects the minimum value in all the shortest moving paths, takes the recording and broadcasting component corresponding to the minimum value as the recording and broadcasting component for executing the current specified recording and broadcasting task, controls the driving component to enable the recording and broadcasting component for executing the current specified recording and broadcasting task to move to the specified recording and broadcasting position according to the shortest moving path, eliminates the recording and broadcasting component for executing the current specified recording and broadcasting task from the idle set, updates the idle set, and shifts to the step b; meanwhile, in the process that the recorded broadcast component executing the current specified recorded broadcast task moves to the specified recorded broadcast position according to the shortest moving path, the controller judges whether a recorded broadcast canceling request is received in real time, if so, the controller controls the driving component to enable the recorded broadcast component executing the current specified recorded broadcast task to stop moving, and meanwhile, the recorded broadcast component stopping moving is added into the current idle set again and updates the current idle set, and the step b is carried out; if not, the controller controls the driving component to enable the recording and broadcasting component executing the current specified recording and broadcasting task to continuously move to the specified recording and broadcasting position according to the shortest moving path, after the current specified recording and broadcasting task is executed, the recording and broadcasting component executing the current specified recording and broadcasting task is added into the current idle set again, the current idle set is updated, and the step b is carried out;
step i, judging whether recording and broadcasting are finished, if so, finishing; if not, continuing to execute the step b.
7. The classroom recording and broadcasting control method according to claim 6, wherein: and (b) when the recording and broadcasting are started in the step (1) and/or the step (a), all the recording and broadcasting components are at default initial positions, and after the recording and broadcasting are finished in the step (6) and/or the step (i), the shortest moving path of the recording and broadcasting components moving to the initial positions is calculated and obtained through the controller, and the controller controls the driving component to enable the recording and broadcasting components to return to the default initial positions according to the shortest moving path.
8. The classroom recording and broadcasting control method according to claim 6, wherein: the method for acquiring the designated recording and broadcasting task in the step 2 and the step b comprises the following steps:
by dividing the interior of a classroom into a plurality of group areas and arranging a key, a sound detection module or an action detection module connected with a controller in each group area, once the controller receives a trigger signal of the key, the sound detection module or the action detection module, the controller receives an appointed recording and broadcasting task;
in addition, the recording and broadcasting position points corresponding to each group area are preset in the controller, and once the controller receives the specified recording and broadcasting task, the recording and broadcasting position points corresponding to the specified recording and broadcasting task can be obtained.
9. The classroom recording and broadcasting control method according to claim 6, wherein: the method for judging the completion of the execution of any specified recording and broadcasting task comprises the following steps: and the controller controls the driving component to enable the recorded broadcast component to move to the specified recorded broadcast position according to the shortest moving path, and after the recorded broadcast component receives the recorded broadcast canceling request in the process of moving to the specified recorded broadcast position through the shortest moving path, or the controller controls the driving component to enable the recorded broadcast component to move to the specified recorded broadcast position according to the shortest moving path and the recorded broadcast time at the specified recorded broadcast position reaches the preset time, namely the controller determines that the specified recorded broadcast task is executed and completed.
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