CN113542535A - Prompting device for drama, movie and literature performance and using method - Google Patents
Prompting device for drama, movie and literature performance and using method Download PDFInfo
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- CN113542535A CN113542535A CN202110711972.1A CN202110711972A CN113542535A CN 113542535 A CN113542535 A CN 113542535A CN 202110711972 A CN202110711972 A CN 202110711972A CN 113542535 A CN113542535 A CN 113542535A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/2222—Prompting
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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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
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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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
- H04N23/67—Focus control based on electronic image sensor signals
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
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Abstract
The invention relates to a prompter for drama, movie and television literary performance, which comprises a bearing base, a lifting bearing column, a guide slide rail, a slide block, a bearing platform, a liquid crystal display, a HUD head-up display, a reflecting plate and a driving circuit, wherein the lifting bearing column is connected with the bearing base and the guide slide rail, the lower end surface of the slide block is in sliding connection with the guide slide rail, the upper end surface of the slide block is hinged with the bearing platform through a turntable mechanism, the bearing platform comprises a bearing bottom plate and a bearing top plate, the display and the HUD head-up display are both hinged with the upper end surface of the bearing bottom plate, the reflecting plate is hinged with the lower end surface of the bearing top plate, and the driving circuit is embedded in the bearing platform. The using method comprises two steps of system assembly, word extraction operation and the like. On one hand, the invention can effectively adapt to the requirements of various performance stage equipment, performance types and information prompting operations; the other party can provide accurate information prompting operation for the appointed personnel, and the information prompting content is comprehensive and rich.
Description
Technical Field
The invention relates to a prompter for drama, movie and literature performances and a using method thereof, belonging to the technical field of intelligent stages.
Background
At present, in activities such as stage theatrical performances, movie shooting and the like, the needs of performing speech prompting, performance element prompting, information prompting and the like on performers in performance activities are often needed, aiming at the problem, the prompt is mainly performed through a prompter at present, but in actual work, the current prompter equipment is often equipment based on a traditional writing board, a liquid crystal display and the like, although the use needs can be met, on one hand, the equipment is complex in structure, poor in use flexibility and universality, and in the use process, certain space of a stage and a performance field is often occupied, the performance quality is influenced, the operation position is fixed, and the operation state and the position cannot be synchronously adjusted along with the position change of the performers; on the other hand, in the operation of the prompter, third-party service personnel are required to operate and control, so that prompt information can not be flexibly and independently obtained by performance personnel very easily, and effective information identification and interaction are lacked between the current prompter device and the performance personnel in the operation process, so that the precision and timeliness of the demand matching of the performance personnel during the operation process of the prompter device are relatively poor, and the demand of actual use is difficult to effectively meet.
Therefore, in order to solve the problem, it is urgently needed to develop a new prompting device for drama, movie and television and literature performances and a using method thereof so as to meet the requirements of practical use.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a prompter for drama, movie and literature performances and a using method thereof.
A prompter for drama, movie and television and literature performance comprises a bearing base, lifting bearing columns, at least two guiding slide rails, a slide block, a walking driving mechanism, a bearing platform, a liquid crystal display, a HUD head-up display, a reflecting plate, a directional loudspeaker, a distance measuring device, a monitoring camera and a driving circuit, wherein the lifting bearing columns are distributed in parallel, the lower end face of each lifting bearing column is connected with the upper end face of the bearing base through a ratchet mechanism, the upper end face of each lifting bearing column is hinged with the lower end face of the corresponding guiding slide rail through the ratchet mechanism, at least one slide block is connected with the corresponding guiding slide rail through the walking driving mechanism in a sliding manner, the upper end face of each lifting bearing column is hinged with the bearing platform through a turntable mechanism, the bearing platform comprises a bearing bottom plate and a bearing top plate, the lower end face of the bearing bottom plate is hinged with the upper end face of the slide block through the turntable mechanism, the rear end face of the bearing bottom plate is hinged with the rear end face of the bearing top plate through the turntable mechanism, and an included angle of 0-90 degrees is formed between the bearing top plate and the bearing base, the liquid crystal display and the HUD head-up display are both hinged with the upper end face of the bearing bottom plate through a turntable mechanism, the HUD head-up display is positioned behind the liquid crystal display, the optical axis of the liquid crystal display and the HUD head-up display form an included angle of 0-135 degrees with the upper end face of the bearing bottom plate, the reflecting plate is hinged with the lower end face of the bearing top plate through the turntable mechanism, the optical axis of the reflecting plate and the optical axis of the HUD head-up display are distributed in the same plane range which is vertically distributed with the upper end face of the bearing bottom plate, the directional loudspeaker, the distance measuring device and the monitoring camera are embedded in the front end face of the bearing top plate, the monitoring camera and the bearing top plate are coaxially distributed, the distance measuring device is positioned below the monitoring camera and is distributed in parallel with the axis of the monitoring camera, at least two directional loudspeakers are symmetrically distributed on two sides of the distance measuring device, the axes of the distance measuring device intersect with the axis, and the intersection point is positioned at least 30-150 cm in front of the distance measuring device, the drive circuit is embedded in the bearing table and is electrically connected with the walking drive mechanism, the liquid crystal display, the HUD head-up display, the directional loudspeaker, the distance measuring device, the monitoring camera and the turntable mechanism which are connected with the current bearing table respectively, and the drive circuits among the bearing tables are connected in parallel.
Preferably, the bearing bases are of a plate-shaped structure with a rectangular cross section, the number of the bearing bases is consistent with the number of the lifting bearing columns, the upper end face of each bearing base is hinged with one lifting bearing column through a ratchet mechanism, an included angle of 0-90 degrees is formed between the upper end face of each bearing base and the axis of each lifting bearing column, the area of the lower end face of each bearing base is 1.5-5 times of the maximum cross section area of each lifting bearing column, and in each bearing base, two adjacent bearing bases are connected through at least one reinforcing rib plate.
Preferably, the bearing bottom plate and the bearing top plate are of U-shaped groove-shaped structures, the lateral surfaces of the bearing bottom plate and the bearing top plate are connected with each other through elastic connecting plates to form a V-shaped groove-shaped structure, the bearing top plate is provided with at least one brightness sensor, the upper end surface of the bearing bottom plate and the lower end surface of the bearing top plate are respectively provided with at least one driving guide rail, the driving guide rails are distributed along the central line direction of the bearing bottom plate and the bearing top plate, the driving guide rails are provided with positioning seats, the lower end surface of each positioning seat is in sliding connection with the driving guide rails, the upper end surface of each positioning seat is provided with a three-dimensional rotary table, the three-dimensional rotary table is hinged to the liquid crystal display, the HUD head-up display and the reflecting plate respectively through the three-dimensional rotary table, the positioning seats are provided with at least one displacement sensor, the three-dimensional rotary table is provided with at least one angle sensor, the brightness sensor, the driving guide rails, the brightness sensors and the brightness sensors, And the displacement sensor, the three-dimensional rotary table and the angle sensor are electrically connected with the driving circuit.
Preferably, the reflecting plate is located between the liquid crystal display and the HUD head-up display, the reflecting plate is connected with the bearing top plate through two driving guide rails and located between the two driving guide rails, the bearing top plate corresponding to the reflecting plate is provided with a projection hole, and the length of the projection hole is 0.8-1.3 times of the maximum distance between the liquid crystal display and the HUD head-up display.
Preferably, the walking driving mechanism comprises a bearing keel, guide wheels, driving wheels, elastic telescopic columns, elastic cushion blocks and a driving motor, the bearing keel is of a structure with a cross section in a shape of Jiong-shaped groove, is coated outside the guide slide rail and is in sliding connection with the guide slide rail through the guide wheels and the driving wheels, at least two driving wheels are symmetrically distributed on two sides of the axis of the bearing keel, are connected with the inner surface of the side wall of the bearing keel through the elastic telescopic columns and are in sliding connection with the side surface of the guide slide rail, are electrically connected with the driving motor through a transmission mechanism, are connected with the outer side surface of the bearing keel and are electrically connected with a driving circuit, the two guide wheels are embedded in the bearing keel and are hinged with the lower surface of the top of the bearing keel through the elastic telescopic columns, and are symmetrically distributed on the front end surface and the rear end surface of the bearing keel, and the elastic telescopic columns are hinged among the bearing keels through elastic hinges, the axes of the elastic telescopic columns are intersected with the axes of the bearing keels and form an included angle of 10-90 degrees, and at least two elastic cushion blocks are respectively connected with the front end face and the rear end face of the bearing keel and exceed the front end face and the rear end face of the bearing keel by at least 10 millimeters.
Preferably, the driving circuit comprises a master control circuit based on an FPGA chip, a graphic and text information processing circuit based on a GPU, a crystal oscillator clock circuit, a data cache circuit, a data latch circuit, a communication bus circuit, an MOS driving circuit, a wireless data communication circuit, a serial port communication circuit, an electronic switch circuit based on a thyristor, a relay control circuit and an I/O communication port, wherein the master control circuit based on the FPGA chip and the graphic and text information processing circuit based on the GPU are respectively electrically connected with the crystal oscillator clock circuit, the data cache circuit, the data latch circuit and the communication bus circuit, the master control circuit based on the FPGA chip is also electrically connected with the MOS driving circuit, and the MOS driving circuit is respectively electrically connected with the wireless data communication circuit, the serial port communication circuit, the electronic switch circuit based on the thyristor, The electronic switch circuit based on the thyristor is electrically connected with the relay control circuit and is electrically connected with the walking driving mechanism, the liquid crystal display, the HUD head-up display, the directional loudspeaker, the distance measuring device, the monitoring camera and the turntable mechanism through the relay control circuit, and the serial communication circuit, the wireless data communication circuit and the I/O communication port are respectively connected with the communication bus circuit, the liquid crystal display, the HUD head-up display, the directional loudspeaker, the distance measuring device and the external communication network.
A method for using a prompter for theatrical, movie and literature performances comprises the following steps:
s1, system assembly, firstly, arranging a plurality of bearing bases on the outer side of the performance stage, enabling the bearing bases to be distributed in parallel with the stage surface of the performance stage and evenly distributed along the axial direction of the outer side of the performance stage, then connecting the guide slide rails with the upper end surfaces of the bearing bases through the lifting bearing columns, adjusting the upper end surfaces of the guide slide rails to be higher than the upper end surface of the stage by 0-30 cm through the lifting bearing columns on one hand, adjusting the axial direction of the guide slide rails to be distributed in parallel with the stage surface and the outer side of the stage on the other hand, then connecting the guide slide rails with at least one slide block through the walking driving mechanism, assembling the bearing tables, the liquid crystal display, the HUD head-up display, the reflecting plate, the directional loudspeaker, the distance measuring device, the monitoring camera and the driving circuit to form a prompt group, finally installing the prompt group on the upper end surface of the slide block, and enabling the optical axis of the prompt group to intersect with the axial direction of the stage, meanwhile, the driving circuits in each prompt group are respectively connected with an external control system and a multimedia playing system in a data mode, and equipment assembly can be completed;
s2, performing word extraction, after the step S1 is completed, firstly, matching each plummer with a corresponding performer through an external control system, respectively setting each plummer to establish data matching, and sending the matched performer face identification characteristics to a driving circuit for caching; then each turntable mechanism operates, the working angle of a bearing top plate of the bearing platform is adjusted, the face of a performer is positioned in the field range of a monitoring camera of the bearing top plate, the identity identification of the performer is completed, meanwhile, the distance between the performer and a current detection head is measured through a distance measuring device, and then according to the measured distance, on one hand, the focal length of the monitoring camera is adjusted, and the position of a sliding block where the bearing platform is positioned is adjusted through a walking driving mechanism according to the distance, so that the synchronous adjustment and positioning of the bearing platform along with the position of the performer and the focusing operation of the monitoring camera are realized; on the other hand, the working angles of the liquid crystal display, the HUD head-up display and the reflecting plate and the running power of the directional loudspeaker are adjusted according to the distance, so that the requirement of performance personnel for watching and listening to the word prompt is met.
Further, in the step S1, the external control system is an intelligent server platform based on cloud computing, and the external control system is further provided with a word control logic system based on an artificial neural network system.
Further, in the step S2, when performing a word-lifting operation, the liquid crystal display is used to perform the word-lifting operation independently, and the HUD head-up display and the reflective plate cooperate with each other to perform the word-lifting operation; when the liquid crystal display is used for carrying out the word extraction operation, a groove body structure with an isosceles triangle-shaped cross section is formed between the bearing bottom plate and the bearing top plate of the bearing table, and the optical axis of the liquid crystal display and the optical axis of the monitoring camera are adjusted to be distributed in parallel; when the HUD head-up display and the reflecting plate are adopted for cooperative operation, the cross sections of the bearing bottom plate and the bearing top plate are in an isosceles triangle groove structure, and the maximum distance between the bearing bottom plate and the bearing top plate is larger than the heights of the HUD head-up display and the reflecting plate, on one hand, the distance between the HUD head-up display and the reflecting plate is adjusted, on the other hand, the HUD head-up display and the reflecting plate are coaxially distributed, and the optical axes of the HUD head-up display and the reflecting plate are positioned below the bearing top plate, and on the other hand, the optical axes of the HUD head-up display and the reflecting plate are distributed in parallel with the optical axis of the monitoring camera; when bearing the bottom plate, bearing roof parallel distribution or bearing the bottom plate, bearing the height that the roof maximum distance is less than HUD new line display, reflecting plate, adjust the interval between HUD new line display, the reflecting plate on the one hand, adjust HUD new line display, the coaxial distribution of reflecting plate simultaneously to make HUD new line display, reflecting plate optical axis be located and bear the roof top, on the other hand make HUD new line display, reflecting plate optical axis and surveillance camera head optical axis parallel distribution can.
The system has simple structure and flexible and convenient use, can effectively adapt to the requirements of various performance stage equipment, performance types and information prompting operation on one hand, and has flexible and convenient use and good universality; on the other hand, during operation, accurate information prompting operation can be provided for appointed personnel, the information prompting content is comprehensive and rich, and no adverse effect is caused to normal performance activities, so that the efficiency and the reliability of the prompting operation are greatly improved, and the improvement of the quality of the performance activities is facilitated.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of a carrier stage;
FIG. 3 is a schematic structural view of a travel driving mechanism;
FIG. 4 is a schematic flow chart of the method of the present invention.
Detailed Description
In order to facilitate the implementation of the technical means, creation features, achievement of the purpose and the efficacy of the invention, the invention is further described below with reference to specific embodiments.
As shown in fig. 1-3, a prompter for drama, movie and television and literature performance comprises a bearing base 1, lifting bearing columns 2, a guide slide rail 3, a slide block 4, a walking driving mechanism 5, a bearing platform 6, a liquid crystal display 7, a HUD head-up display 8, a reflecting plate 9, a directional loudspeaker 10, a distance measuring device 11, a monitoring camera 12 and a driving circuit 13, wherein the lifting bearing columns 2 are at least two, the lifting bearing columns 2 are distributed in parallel, the lower end face is connected with the upper end face of the bearing base 1 through a ratchet mechanism 14, the upper end face is hinged with the lower end face of the guide slide rail 3 through the ratchet mechanism 14, at least one slide block 4 is arranged, the lower end face is connected with the guide slide rail 3 in a sliding mode through the walking driving mechanism 5, and the upper end face is hinged with the bearing platform 6 through a rotary table mechanism 15.
In this embodiment, the bearing table 6 includes a bearing bottom plate 61 and a bearing top plate 62, the lower end surface of the bearing bottom plate 61 is hinged to the upper end surface of the slider 4 through the turntable mechanism 15, the rear end surface of the bearing bottom plate 61 is hinged to the rear end surface of the bearing top plate 62 through the turntable mechanism 15, and an included angle of 0-90 degrees is formed between the bearing top plate 62 and the bearing base 61.
In this embodiment, the lcd 7 and the HUD head-up display 8 are hinged to the upper end surface of the supporting bottom plate 61 through the turntable mechanism 15, the HUD head-up display 8 is located behind the lcd 7, the optical axes of the lcd 7 and the HUD head-up display 8 and the upper end surface of the supporting bottom plate 61 form an included angle of 0-135 degrees, the reflective plate 9 is hinged to the lower end surface of the supporting top plate 62 through the turntable mechanism 15, the optical axes of the reflective plate 9 and the HUD head-up display 8 are distributed in the same plane range vertically distributed to the upper end surface of the supporting bottom plate 61, the directional speakers 10, the distance measuring device 11 and the monitoring camera 12 are embedded in the front end surface of the supporting top plate 62, wherein the monitoring camera 12 and the supporting top plate 62 are coaxially distributed, the distance measuring device 11 is located below the monitoring camera and is distributed parallel to the axis of the monitoring camera 12, at least two directional speakers 10 are symmetrically distributed on two sides of the distance measuring device 11, the axes of the distance measuring device 11 are crossed, the intersection point is located at least 30-150 cm in front of the distance measuring device 11, the driving circuit 13 is embedded in the bearing table 6 and is electrically connected with the walking driving mechanism 5, the liquid crystal display 7, the HUD head-up display 8, the directional loudspeaker 1, the distance measuring device 11, the monitoring camera 12 and the turntable mechanism 15 which are connected with the current bearing table 6 respectively, and the driving circuits 13 among the bearing tables 6 are connected in parallel.
Preferably, the bearing base 1 is a plate-shaped structure with a rectangular cross section, the number of the bearing base is consistent with the number of the lifting bearing columns 2, the upper end face of each bearing base 1 is hinged with one lifting bearing column 2 through a ratchet mechanism 14, an included angle of 0-90 degrees is formed between the upper end face of the bearing base 1 and the axis of the lifting bearing column 2, the area of the lower end face of the bearing base 1 is 1.5-5 times of the maximum cross section area of the lifting bearing column 2, and two adjacent bearing bases in the bearing base 1 are connected through at least one reinforcing rib plate 16.
Preferably, the bearing bottom plate 61 and the bearing top plate 62 are both of a U-shaped groove-shaped structure in cross section, the side surfaces of the bearing bottom plate 61 and the bearing top plate 62 are connected with each other through an elastic connecting plate 63 to form a V-shaped groove-shaped structure in axial section, the bearing top plate 62 is provided with at least one brightness sensor 64, the upper end surface of the bearing bottom plate 61 and the lower end surface of the bearing top plate 62 are both provided with at least one driving guide rail 65, the driving guide rails 65 are distributed along the central line direction of the bearing bottom plate 61 and the bearing top plate 62, a positioning seat 66 is arranged on the driving guide rail 65, the lower end surface of the positioning seat 66 is connected with the driving guide rail 65 in a sliding manner, the upper end surface is provided with a three-dimensional turntable 67, and is respectively hinged to the liquid crystal display 7, the HUD head-up display 8 and the reflection plate 9 through the three-dimensional turntable 67, the positioning seat 66 is provided with at least one displacement sensor 68, the three-dimensional turntable 67 is provided with at least one angle sensor 69, the brightness sensor 64, the driving guide rail 65, the displacement sensor 68, the three-dimensional turntable 67 and the angle sensor 69 are electrically connected with the driving circuit 13.
Preferably, the reflection plate 9 is located between the liquid crystal display 7 and the HUD head-up display 8, the reflection plate 9 is connected with the bearing top plate 62 through two driving guide rails 65 and located between the two driving guide rails 65, the bearing top plate 62 corresponding to the reflection plate 9 is provided with the projection hole 60, and the length of the projection hole 60 is 0.8-1.3 times of the maximum distance between the liquid crystal display 7 and the HUD head-up display 8.
Preferably, the walking driving mechanism 5 includes a bearing keel 51, a guide wheel 52, a driving wheel 53, elastic telescopic columns 54, elastic cushion blocks 55 and a driving motor 56, the bearing keel 51 is in a groove-shaped structure with a cross section shaped like a Chinese character 'Jiong', covers the outside of the guide slide rail 3, and is in sliding connection with the guide slide rail 3 through the guide wheel 52 and the driving wheel 53, wherein at least two driving wheels 53 are symmetrically distributed on two sides of the axis of the bearing keel 51, are connected with the inner surface of the side wall of the bearing keel 51 through the elastic telescopic columns 54 and are in sliding connection with the side surface of the guide slide rail 3, the driving wheel 53 is electrically connected with the driving motor 56 through a transmission mechanism, the driving motor 56 is connected with the outer side surface of the bearing keel 51 and is electrically connected with the driving circuit 13, the two guide wheels 52 are embedded in the bearing keel 51 and are hinged to the lower surface of the top of the bearing keel 51 through the elastic telescopic columns 54, the guide wheels 52 are symmetrically distributed on the front end face and the rear end face of the bearing keel 51, the elastic telescopic columns 54 are hinged among the bearing keels 51 through elastic hinges, the axes of the elastic telescopic columns 54 are intersected with the axes of the bearing keels 51 and form an included angle of 10-90 degrees, and at least two elastic cushion blocks 55 are respectively connected with the front end face and the rear end face of the bearing keel 51 and exceed the front end face and the rear end face of the bearing keel 51 by at least 10 mm.
Preferably, the driving circuit 13 comprises a FPGA chip-based main control circuit, a GPU-based graphic information processing circuit, a crystal oscillator clock circuit, a data cache circuit, a data latch circuit, a communication bus circuit, a MOS driving circuit, a wireless data communication circuit, a serial communication circuit, a thyristor-based electronic switch circuit, a relay control circuit, and an I/O communication port, wherein the FPGA chip-based main control circuit and the GPU-based graphic information processing circuit are electrically connected to the crystal oscillator clock circuit, the data cache circuit, the data latch circuit, and the communication bus circuit, respectively, the FPGA chip-based main control circuit is further electrically connected to the MOS driving circuit, and the MOS driving circuit is respectively electrically connected to the wireless data communication circuit, the serial communication circuit, and the thyristor-based electronic switch circuit, The electronic switch circuit based on the thyristor is electrically connected with the relay control circuit and is electrically connected with the walking driving mechanism 5, the liquid crystal display 7, the HUD head-up display 8, the directional loudspeaker 10, the distance measuring device 11, the monitoring camera 12 and the turntable mechanism 15 through the relay control circuit, and the serial port communication circuit, the wireless data communication circuit and the I/O communication port are respectively connected with the communication bus circuit, the liquid crystal display 7, the HUD head-up display 8, the directional loudspeaker 10, the distance measuring device 11 and an external communication network.
As shown in fig. 4, a method for using a prompter for theatrical, movie and television performances comprises the following steps:
s1, system assembly, firstly, arranging a plurality of bearing bases on the outer side of the performance stage, enabling the bearing bases to be distributed in parallel with the stage surface of the performance stage and evenly distributed along the axial direction of the outer side of the performance stage, then connecting the guide slide rails with the upper end surfaces of the bearing bases through the lifting bearing columns, adjusting the upper end surfaces of the guide slide rails to be higher than the upper end surface of the stage by 0-30 cm through the lifting bearing columns on one hand, adjusting the axial direction of the guide slide rails to be distributed in parallel with the stage surface and the outer side of the stage on the other hand, then connecting the guide slide rails with at least one slide block through the walking driving mechanism, assembling the bearing tables, the liquid crystal display, the HUD head-up display, the reflecting plate, the directional loudspeaker, the distance measuring device, the monitoring camera and the driving circuit to form a prompt group, finally installing the prompt group on the upper end surface of the slide block, and enabling the optical axis of the prompt group to intersect with the axial direction of the stage, meanwhile, the driving circuits in each prompt group are respectively connected with an external control system and a multimedia playing system in a data mode, and equipment assembly can be completed;
s2, performing word extraction, after the step S1 is completed, firstly, matching each plummer with a corresponding performer through an external control system, respectively setting each plummer to establish data matching, and sending the matched performer face identification characteristics to a driving circuit for caching; then each turntable mechanism operates, the working angle of a bearing top plate of the bearing platform is adjusted, the face of a performer is positioned in the field range of a monitoring camera of the bearing top plate, the identity identification of the performer is completed, meanwhile, the distance between the performer and a current detection head is measured through a distance measuring device, and then according to the measured distance, on one hand, the focal length of the monitoring camera is adjusted, and the position of a sliding block where the bearing platform is positioned is adjusted through a walking driving mechanism according to the distance, so that the synchronous adjustment and positioning of the bearing platform along with the position of the performer and the focusing operation of the monitoring camera are realized; on the other hand, the working angles of the liquid crystal display, the HUD head-up display and the reflecting plate and the running power of the directional loudspeaker are adjusted according to the distance, so that the requirement of performance personnel for watching and listening to the word prompt is met.
Further, in the step S1, the external control system is an intelligent server platform based on cloud computing, and the external control system is further provided with a word control logic system based on an artificial neural network system.
Further, in the step S2, when performing a word-lifting operation, the liquid crystal display is used to perform the word-lifting operation independently, and the HUD head-up display and the reflective plate cooperate with each other to perform the word-lifting operation; when the liquid crystal display is used for carrying out the word extraction operation, a groove body structure with an isosceles triangle-shaped cross section is formed between the bearing bottom plate and the bearing top plate of the bearing table, and the optical axis of the liquid crystal display and the optical axis of the monitoring camera are adjusted to be distributed in parallel; when the HUD head-up display and the reflecting plate are adopted for cooperative operation, the cross sections of the bearing bottom plate and the bearing top plate are in an isosceles triangle groove structure, and the maximum distance between the bearing bottom plate and the bearing top plate is larger than the heights of the HUD head-up display and the reflecting plate, on one hand, the distance between the HUD head-up display and the reflecting plate is adjusted, on the other hand, the HUD head-up display and the reflecting plate are coaxially distributed, and the optical axes of the HUD head-up display and the reflecting plate are positioned below the bearing top plate, and on the other hand, the optical axes of the HUD head-up display and the reflecting plate are distributed in parallel with the optical axis of the monitoring camera; when bearing the bottom plate, bearing roof parallel distribution or bearing the bottom plate, bearing the height that the roof maximum distance is less than HUD new line display, reflecting plate, adjust the interval between HUD new line display, the reflecting plate on the one hand, adjust HUD new line display, the coaxial distribution of reflecting plate simultaneously to make HUD new line display, reflecting plate optical axis be located and bear the roof top, on the other hand make HUD new line display, reflecting plate optical axis and surveillance camera head optical axis parallel distribution can.
In this embodiment, in the operation of step S2, the monitoring camera recognizes the gestures of the performers while recognizing the identities of the performers, so as to realize gesture recognition control.
The system has simple structure and flexible and convenient use, can effectively adapt to the requirements of various performance stage equipment, performance types and information prompting operation on one hand, and has flexible and convenient use and good universality; on the other hand, during operation, accurate information prompting operation can be provided for appointed personnel, the information prompting content is comprehensive and rich, and no adverse effect is caused to normal performance activities, so that the efficiency and the reliability of the prompting operation are greatly improved, and the improvement of the quality of the performance activities is facilitated.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A prompter for drama, movie and literature performance is characterized in that: the distribution station room AI artificial intelligence analysis processing system comprises a bearing base, lifting bearing columns, at least two guide slide rails, a slide block, a walking driving mechanism, a bearing platform, a liquid crystal display, a HUD head-up display, a reflecting plate, a directional loudspeaker, a distance measuring device, a monitoring camera and a driving circuit, wherein the lifting bearing columns are distributed in parallel, the lower end face of each lifting bearing column is connected with the upper end face of the bearing base through a ratchet mechanism, the upper end face of each lifting bearing column is hinged with the lower end face of the corresponding guide slide rail through the ratchet mechanism, at least one slide block is arranged, the lower end face of each slide block is connected with the corresponding guide slide rail in a sliding mode through the walking driving mechanism, the upper end face of each lifting bearing column is hinged with the bearing platform through a turntable mechanism, the bearing platform comprises a bearing bottom plate and a bearing top plate, the lower end face of the bearing bottom plate is hinged with the upper end face of the slide block through the turntable mechanism, and the rear end face of the bearing bottom plate is hinged with the rear end face of the bearing top plate through the turntable mechanism, and an included angle of 0-90 degrees is formed between the bearing top plate and the bearing base, the liquid crystal display and the HUD head-up display are hinged with the upper end surface of the bearing bottom plate through a turntable mechanism, the HUD head-up display is positioned at the rear of the liquid crystal display, the optical axes of the liquid crystal display and the HUD head-up display and the upper end surface of the bearing bottom plate form an included angle of 0-135 degrees, the reflecting plate is hinged with the lower end surface of the bearing top plate through the turntable mechanism, the optical axes of the reflecting plate and the HUD head-up display are distributed in the same plane range which is vertically distributed with the upper end surface of the bearing bottom plate, the directional loudspeaker, the distance measuring device and the monitoring camera are embedded in the front end surface of the bearing top plate, wherein the monitoring camera and the bearing top plate are coaxially distributed, the distance measuring device is positioned below the monitoring camera and is distributed in parallel with the axis of the monitoring camera, at least two directional loudspeakers are symmetrically distributed on two sides of the distance measuring device, the axes of the distance measuring device are intersected with each other, the intersection point of the axes of the distance measuring device is located at least 30-150 cm in front of the distance measuring device, the driving circuit is embedded in the bearing table and is electrically connected with the walking driving mechanism, the liquid crystal display, the HUD head-up display, the directional loudspeaker, the distance measuring device, the monitoring camera and the turntable mechanism which are connected with the current bearing table respectively, and the driving circuits among the bearing tables are connected in parallel.
2. A prompter for theatrical movie and television literary performance as claimed in claim 1, wherein: the bearing bases are of plate-shaped structures with rectangular cross sections, the number of the bearing bases is consistent with that of the lifting bearing columns, the upper end face of each bearing base is hinged with one lifting bearing column through a ratchet mechanism, the upper end face of each bearing base and the axis of each lifting bearing column form an included angle of 0-90 degrees, the area of the lower end face of each bearing base is 1.5-5 times of the maximum cross section area of each lifting bearing column, and in each bearing base, two adjacent bearing bases are connected through at least one reinforcing rib plate.
3. A prompter for theatrical movie and television literary performance as claimed in claim 1, wherein: the U-shaped groove-shaped structure is formed in the cross section of each of the bearing bottom plate and the bearing top plate, the side surfaces of the bearing bottom plate and the bearing top plate are connected through an elastic connecting plate, the axial section of the U-shaped groove-shaped structure is formed into a V-shaped groove-shaped structure, at least one brightness sensor is arranged on the bearing top plate, at least one driving guide rail is arranged on the upper end surface of the bearing bottom plate and the lower end surface of the bearing top plate, the driving guide rails are distributed along the central line direction of the bearing bottom plate and the bearing top plate, a positioning seat is arranged on the driving guide rail, the lower end surface of the positioning seat is connected with the driving guide rail in a sliding mode, a three-dimensional rotary table is arranged on the upper end surface of the bearing bottom plate and is hinged to a liquid crystal display, a HUD head-up display and a reflecting plate through the three-dimensional rotary table respectively, at least one displacement sensor is arranged on the positioning seat, at least one angle sensor is arranged on the three-dimensional rotary table, and the brightness sensor, the driving guide rail, the displacement sensor, the three-shaped displacement sensor, the driving guide rail, the three-shaped rotary table, the driving guide rail, the three-shaped guide rail, and the three-shaped guide rail are arranged on the liquid crystal display, and the liquid crystal display are arranged in the liquid crystal display, and are arranged in the liquid crystal display, and are arranged in the form a U-shaped display respectively, and are arranged in the liquid crystal display respectively, and are arranged in the form a U-shaped display, and are arranged in the liquid crystal display respectively, The three-dimensional rotary table and the angle sensor are electrically connected with the driving circuit.
4. A prompter for theatrical movie and television literary performance as claimed in claim 1, wherein: the reflecting plate is located between the liquid crystal display and the HUD head-up display, the reflecting plate is connected with the bearing top plate through two driving guide rails and located between the two driving guide rails, the bearing top plate corresponding to the reflecting plate is provided with a projection hole, and the length of the projection hole is 0.8-1.3 times of the maximum distance between the liquid crystal display and the HUD head-up display.
5. A prompter for theatrical movie and television literary performance as claimed in claim 1, wherein: the walking driving mechanism comprises a bearing keel, a guide wheel, a driving wheel, elastic telescopic columns, elastic cushion blocks and a driving motor, wherein the bearing keel is of a structure with a cross section in the shape of Jiong-shaped groove, is coated outside the guide slide rail and is in sliding connection with the guide slide rail through the guide wheel and the driving wheel, at least two driving wheels are symmetrically distributed on two sides of the axis of the bearing keel, are connected with the inner surface of the side wall of the bearing keel through the elastic telescopic columns and are in sliding connection with the side surface of the guide slide rail, are electrically connected with the driving motor through a transmission mechanism, are connected with the outer side surface of the bearing keel and are electrically connected with a driving circuit, are embedded in the bearing keel and are hinged with the lower surface of the top of the bearing keel through the elastic telescopic columns, and are symmetrically distributed on the front end surface and the rear end surface of the bearing keel, and the elastic telescopic columns are hinged among the bearing keels through elastic hinges, the axes of the elastic telescopic columns are intersected with the axes of the bearing keels and form an included angle of 10-90 degrees, and at least two elastic cushion blocks are respectively connected with the front end face and the rear end face of the bearing keel and exceed the front end face and the rear end face of the bearing keel by at least 10 millimeters.
6. A prompter for theatrical movie and television literary performance as claimed in claim 3, wherein: the drive circuit comprises a master control circuit based on an FPGA chip, a graphic and text information processing circuit based on a GPU, a crystal oscillator clock circuit, a data cache circuit, a data latch circuit, a communication bus circuit, an MOS drive circuit, a wireless data communication circuit, a serial port communication circuit, an electronic switch circuit based on a thyristor, a relay control circuit and an I/O communication port, wherein the master control circuit based on the FPGA chip and the graphic and text information processing circuit based on the GPU are respectively and electrically connected with the crystal oscillator clock circuit, the data cache circuit, the data latch circuit and the communication bus circuit, the master control circuit based on the FPGA chip is also electrically connected with the MOS drive circuit, and the MOS drive circuit is respectively and electrically connected with the wireless data communication circuit, the serial port communication circuit and the electronic switch circuit based on the thyristor, The electronic switch circuit based on the thyristor is electrically connected with the relay control circuit and is electrically connected with the walking driving mechanism, the liquid crystal display, the HUD head-up display, the directional loudspeaker, the distance measuring device, the monitoring camera and the turntable mechanism through the relay control circuit, and the serial communication circuit, the wireless data communication circuit and the I/O communication port are respectively connected with the communication bus circuit, the liquid crystal display, the HUD head-up display, the directional loudspeaker, the distance measuring device and the external communication network.
7. A use method of a prompter for drama, movie and literature performances is characterized in that the use method of the power distribution station room AI artificial intelligence analysis processing system comprises the following steps:
s1, system assembly, firstly, arranging a plurality of bearing bases on the outer side of the performance stage, enabling the bearing bases to be distributed in parallel with the stage surface of the performance stage and evenly distributed along the axial direction of the outer side of the performance stage, then connecting the guide slide rails with the upper end surfaces of the bearing bases through the lifting bearing columns, adjusting the upper end surfaces of the guide slide rails to be higher than the upper end surface of the stage by 0-30 cm through the lifting bearing columns on one hand, adjusting the axial direction of the guide slide rails to be distributed in parallel with the stage surface and the outer side of the stage on the other hand, then connecting the guide slide rails with at least one slide block through the walking driving mechanism, assembling the bearing tables, the liquid crystal display, the HUD head-up display, the reflecting plate, the directional loudspeaker, the distance measuring device, the monitoring camera and the driving circuit to form a prompt group, finally installing the prompt group on the upper end surface of the slide block, and enabling the optical axis of the prompt group to intersect with the axial direction of the stage, meanwhile, the driving circuits in each prompt group are respectively connected with an external control system and a multimedia playing system in a data mode, and equipment assembly can be completed;
s2, performing word extraction, after the step S1 is completed, firstly, matching each plummer with a corresponding performer through an external control system, respectively setting each plummer to establish data matching, and sending the matched performer face identification characteristics to a driving circuit for caching; then each turntable mechanism operates, the working angle of a bearing top plate of the bearing platform is adjusted, the face of a performer is positioned in the field range of a monitoring camera of the bearing top plate, the identity identification of the performer is completed, meanwhile, the distance between the performer and a current detection head is measured through a distance measuring device, and then according to the measured distance, on one hand, the focal length of the monitoring camera is adjusted, and the position of a sliding block where the bearing platform is positioned is adjusted through a walking driving mechanism according to the distance, so that the synchronous adjustment and positioning of the bearing platform along with the position of the performer and the focusing operation of the monitoring camera are realized; on the other hand, the working angles of the liquid crystal display, the HUD head-up display and the reflecting plate and the running power of the directional loudspeaker are adjusted according to the distance, so that the requirement of performance personnel for watching and listening to the word prompt is met.
8. The method of using a prompter for theatrical, movie and literature performances as claimed in claim 1, wherein: in the step S1, the external control system is an intelligent server platform based on cloud computing, and the external control system is additionally provided with a word-lifting control logic system based on an artificial neural network system.
9. The method of using a prompter for theatrical, movie and literature performances as claimed in claim 1, wherein: in the step S2, when performing a word-lifting operation, the liquid crystal display is used to perform the word-lifting operation independently, and the HUD head-up display and the reflective plate cooperate with each other to perform the word-lifting operation; when the liquid crystal display is used for carrying out the word extraction operation, a groove body structure with an isosceles triangle-shaped cross section is formed between the bearing bottom plate and the bearing top plate of the bearing table, and the optical axis of the liquid crystal display and the optical axis of the monitoring camera are adjusted to be distributed in parallel; when the HUD head-up display and the reflecting plate are adopted for cooperative operation, the cross sections of the bearing bottom plate and the bearing top plate are in an isosceles triangle groove structure, and the maximum distance between the bearing bottom plate and the bearing top plate is larger than the heights of the HUD head-up display and the reflecting plate, on one hand, the distance between the HUD head-up display and the reflecting plate is adjusted, on the other hand, the HUD head-up display and the reflecting plate are coaxially distributed, and the optical axes of the HUD head-up display and the reflecting plate are positioned below the bearing top plate, and on the other hand, the optical axes of the HUD head-up display and the reflecting plate are distributed in parallel with the optical axis of the monitoring camera; when bearing the bottom plate, bearing roof parallel distribution or bearing the bottom plate, bearing the height that the roof maximum distance is less than HUD new line display, reflecting plate, adjust the interval between HUD new line display, the reflecting plate on the one hand, adjust HUD new line display, the coaxial distribution of reflecting plate simultaneously to make HUD new line display, reflecting plate optical axis be located and bear the roof top, on the other hand make HUD new line display, reflecting plate optical axis and surveillance camera head optical axis parallel distribution can.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290359B1 (en) * | 1999-08-05 | 2001-09-18 | The Potomac Company, L.L.C. | Image forming apparatus and method for live performance |
| JP2011044777A (en) * | 2009-08-19 | 2011-03-03 | Canon Inc | Prompter device |
| CN205961261U (en) * | 2016-08-23 | 2017-02-15 | 郑小飞 | Portable outer prompter device that adopts |
| CN110851585A (en) * | 2019-10-22 | 2020-02-28 | 太仓秦风广告传媒有限公司 | Intelligent inscription device for stage performance and working method thereof |
| US20210067731A1 (en) * | 2017-12-27 | 2021-03-04 | Lg Electronics Inc. | Display device |
| CN112672001A (en) * | 2020-12-31 | 2021-04-16 | 杭州云端文化创意有限公司 | Prompter system for film shooting and working method thereof |
| CN112885196A (en) * | 2021-01-28 | 2021-06-01 | 焦作大学 | Portable show teaching aid of drama movie & TV literature teaching |
| CN112911090A (en) * | 2021-01-28 | 2021-06-04 | 焦作大学 | Portable speech manuscript prompter playing device for news dissemination |
-
2021
- 2021-06-25 CN CN202110711972.1A patent/CN113542535B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6290359B1 (en) * | 1999-08-05 | 2001-09-18 | The Potomac Company, L.L.C. | Image forming apparatus and method for live performance |
| JP2011044777A (en) * | 2009-08-19 | 2011-03-03 | Canon Inc | Prompter device |
| CN205961261U (en) * | 2016-08-23 | 2017-02-15 | 郑小飞 | Portable outer prompter device that adopts |
| US20210067731A1 (en) * | 2017-12-27 | 2021-03-04 | Lg Electronics Inc. | Display device |
| CN110851585A (en) * | 2019-10-22 | 2020-02-28 | 太仓秦风广告传媒有限公司 | Intelligent inscription device for stage performance and working method thereof |
| CN112672001A (en) * | 2020-12-31 | 2021-04-16 | 杭州云端文化创意有限公司 | Prompter system for film shooting and working method thereof |
| CN112885196A (en) * | 2021-01-28 | 2021-06-01 | 焦作大学 | Portable show teaching aid of drama movie & TV literature teaching |
| CN112911090A (en) * | 2021-01-28 | 2021-06-04 | 焦作大学 | Portable speech manuscript prompter playing device for news dissemination |
Non-Patent Citations (3)
| Title |
|---|
| SANG-YI YI等: "Moving Parallax Barrier Design for Eye-Tracking Autostereoscopic Displays", 《2008 3DTV CONFERENCE: THE TRUE VISION - CAPTURE, TRANSMISSION AND DISPLAY OF 3D VIDEO》 * |
| 王贵明: "浅谈温州大剧院舞台机械安装", 《科技创业月刊》 * |
| 雷超: "虚拟演播室用机器人设计与研发", 《中国优秀硕士学位论文全文数据库》 * |
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