CN108010443B - Radio signal return viewing receiving screen for studio - Google Patents
Radio signal return viewing receiving screen for studio Download PDFInfo
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- CN108010443B CN108010443B CN201711388585.9A CN201711388585A CN108010443B CN 108010443 B CN108010443 B CN 108010443B CN 201711388585 A CN201711388585 A CN 201711388585A CN 108010443 B CN108010443 B CN 108010443B
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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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
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a wireless signal return-viewing receiving screen for a studio, which comprises: the signal sending computer is used for sending the playing content signal; the external signal transceiver is used for receiving the playing content signal and transmitting the playing content signal; the back signal receiver is used for receiving a playing content signal sent by a signal sending computer or an external signal transceiver; the controller is used for receiving and decoding the playing content signal received by the back signal receiver and generating a control signal; the back signal receiver and the controller are fixed on the back of the signal receiving screen and used for receiving the control signal and outputting the playing content; the triangular fixing frame is arranged at the bottom of the signal receiving screen and has a fixing and supporting function. The return-to-watch receiving screen can display captions and play pictures or videos, has more signal receiving means, occupies less space, and has large wireless communication range, low error rate and small signal receiving screen flicker.
Description
Technical Field
The invention belongs to the technical field of a return-to-watch receiving screen, and particularly relates to a wireless signal return-to-watch receiving screen for a studio.
Background
Displays (displays) are also commonly referred to as monitors. The display is an I/O device belonging to a computer, namely an input/output device. The electronic document display tool is a display tool which displays a certain electronic document on a screen through a specific transmission device and reflects the electronic document to human eyes. According to different manufacturing materials, the method can be divided into the following steps: cathode ray tube displays (CRT), plasma display PDPs, liquid crystal displays LCD, etc.
The return-to-watch receiving screen of the studio is similar to a display, the existing studio is often provided with the return-to-watch screen and is mostly used for caption prompters during program recording so that a broadcaster can smoothly and accurately broadcast the programs, but the existing return-to-watch screen has incomplete functions and brings much inconvenience in the using process, so that the return-to-watch screen provided by the invention can meet the using requirements of the studio.
Disclosure of Invention
The invention aims to provide a wireless signal return-viewing receiving screen for a studio, which can not only display captions, but also play pictures or videos, has more signal receiving means, occupies less space, has large wireless communication range, low error rate and small signal receiving screen flicker
The scheme adopted by the invention for solving the technical problems is as follows: a radio signal return viewing receiving screen for a studio, the radio signal return viewing receiving screen comprising:
the signal sending computer is used for sending the playing content signal;
the external signal transceiver is used for receiving the playing content signal and transmitting the playing content signal;
the back signal receiver is used for receiving a playing content signal sent by a signal sending computer or an external signal transceiver;
the controller is used for receiving and decoding the playing content signal received by the back signal receiver and generating a control signal;
the back signal receiver and the controller are fixed on the back of the signal receiving screen and used for receiving the control signal and outputting the playing content;
the triangular fixing frame is arranged at the bottom of the signal receiving screen and has a fixing and supporting function. The structure of the review receiving screen is simple and clear, the playing content signal sent by the signal sending computer is not limited to the caption signal but can also be a picture or a video, so that the review receiving screen can break through the limitation that the traditional review screen can only see the caption, and the picture or the video can also be played on the review receiving screen, thereby widening the application range of the review screen, improving the economic value of the review screen, enabling a broadcaster to be reminded more vividly and improving the working convenience of a studio. The back signal receiver is mainly used for indoor requirements, when the distance between a playing content signal source and the back signal receiver is long, the signal sending computer is matched with an external signal transceiver for use, and the back signal receiver is mainly used outside a studio, so that the return-to-watch screen signal receiving means are more, the back signal receiver can be controlled in a larger range, the wireless signal transmission stability is high, and the error rate is low. The lower part of the signal receiving screen is provided with the triangular fixing frame, so that the signal receiving screen can be better fixed, the screen has small flicker, the movement is convenient, and the occupied space is small.
Preferably, the included angle α between two supports of the triangular fixing frame is 55-65 degrees, the bottom of each support of the triangular fixing frame is connected with a self-locking pulley, the included angle α angle between the two supports is suitable for enabling the triangular fixing frame to have a proper height-width ratio, the occupied space of the triangular fixing frame is reduced, the triangular fixing frame also has a reliable supporting and fixing effect on the signal receiving screen, the self-locking pulleys are convenient for the signal receiving screen to move and fix, the working convenience in a studio is improved, and the occupied space is small.
Preferably, one end of the back signal receiver is provided with a signal receiving antenna box, and the other end of the back signal receiver is provided with a power line jack and at least one signal connecting line jack. The signal receiving antenna box is internally provided with an antenna, the box body has a protection effect on the antenna, the box body is made of non-shielding materials and does not affect the signal receiving and sending of the antenna, the power line jack is used for supplying power to the back signal receiver and maintaining the normal work of the back signal receiver, and the signal connecting line jack is used for establishing signal connection with other parts so as to transmit a playing content signal received by the back signal receiver.
Preferably, a spiral gradually-changed signal antenna is arranged in the signal receiving antenna box, the ratio of the lower-layer spiral middle diameter d1 between two spiral layers in the signal antenna to the upper-layer spiral middle diameter d2 is 1: 0.72-0.85, and the signal antenna is formed by reversely splicing a plurality of arc-shaped wiring units. The signal antenna is composed of metal wires with good electric conductivity, can receive and transmit polarized electromagnetic signals in space, and can transmit and receive the polarized electromagnetic signals according to a formula
(wherein L isuHIs inductance (uH), d1Is the larger pitch diameter (cm), d of the spiral in two adjacent layers2The antenna has the advantages that when the diameter D of the signal antenna is 0.06-0.11 cm, the preferred ratio of the lower spiral middle diameter D1 to the upper spiral middle diameter D2 between two spiral layers in the signal antenna is 1: 0.72-0.85, the signal antenna has larger inductance in the ratio range, the change of the magnetic field intensity around the antenna is slow, the attenuation of the signal is slow, the wireless communication range of the device is large, the use is convenient, and the design that the signal antenna is formed by reversely splicing a plurality of arc wiring units is matched with the signal antenna, so that the internal radiation superposition of the signal antenna is strengthened, the same frequency interference can be well inhibited, the signal-to-noise ratio is high, and higher data can be ensuredThe communication quality ensures that the invention has low data packet loss rate and communication error rate in the transmission process of the playing content signal<10-8The effectiveness of wireless transmission is obviously improved, and the working reliability is improved.
Preferably, the outer edge of the signal receiving screen is connected with a wall lamp frame, and wall lamps are uniformly distributed on the inner wall of the wall lamp frame. The outer edge of the signal receiving screen is provided with the wall lamp, so that the display effectiveness of the signal receiving screen can be improved, the definition of caption, picture or video playing is improved, and the influence of the external environment on display is avoided.
Preferably, the wall lamp comprises an arc lamp groove, an arc lamp strip is connected to the center inside the arc lamp groove, reflecting surfaces are arranged on the upper side and the lower side of the arc lamp strip, and the ratio of the arc length of the arc lamp strip to the arc length of the arc lamp groove is 1: 1.5-1.9. The light in arc lamp area is not only concentrated but also dispersed, can improve visual luminance around the signal reception screen, has reduced the person of reporting and has seen the tired phenomenon of eye that appears in the word process of looking and carrying, and the reflecting surface that two sides were equipped with about the arc lamp area can be peripheral to the signal reception screen with the too scattered light reflection of part, avoids light extravagant. The wall lamp with the structural design replaces the traditional LED direct installation method, light rays which are parallel to the screen and form 55-68 degrees with the screen are arranged around the signal receiving screen, display light rays emitted by the signal receiving screen are changed, the effect of visual persistence similar to human eyes is generated, the previous frame of image can form persistence in the space before the next frame of image is displayed, screen flicker is reduced to the state which cannot be perceived by a broadcaster, the broadcaster cannot perceive screen flicker under the low brightness level, accurate capturing of captions, pictures or video information displayed by the signal receiving screen by the broadcaster is improved, and the working reliability of the device is improved.
Preferably, the back signal receiver is internally provided with an NFC authentication module. The NFC authentication module enables the back signal receiver to be matched with a component with the NFC authentication module only, and reliability of wireless transmission of the device is improved.
Preferably, the back signal receiver adopts one of a WiGig chip, a BT chip or a ZigBee chip. The wireless chip has low power consumption, high cost performance and high reliability and can realize long-distance transmission.
Preferably, the display principle of the wireless signal back-viewing receiving screen is as follows:
the signal sending computer sends a playing content signal;
the external signal transceiver receives the playing content signal and transmits the playing content signal;
the back signal receiver receives a playing content signal sent by a signal sending computer or an external signal transceiver;
the controller receives and decodes the playing content signal received by the back signal receiver and generates a control signal;
the signal receiving screen receives the control signal and outputs the playing content. The display principle of the wireless signal return-viewing receiving screen realizes the display of subtitles, pictures or videos by utilizing wireless transmission, facilitates the remote control of operators, has high transmission stability and brings great convenience to studios.
Compared with the prior art, the invention has the advantages that 1) the backsight receiving screen can break through the limitation that the traditional backsight screen can only see the subtitles, and can play pictures or videos on the backsight receiving screen, thereby widening the application range of the backsight screen; 2) the invention has more signal receiving means of the return-to-watch screen, can be controlled in a larger range, and has high stability of wireless signal transmission and low error rate; 3) the signal antenna has larger inductance, the magnetic field intensity around the antenna changes slowly, the signal attenuation is slow, the signal-to-noise ratio is high, and higher data communication quality is ensured; 4) the wall lamp reduces eyestrain of the broadcaster in the process of seeing and lifting words, and can reduce screen flicker to a state which cannot be perceived by the broadcaster, so that the broadcaster cannot perceive the screen flicker under a low brightness level.
The invention adopts the technical scheme to provide the radio signal return-viewing receiving screen for the studio, overcomes the defects of the prior art, and has reasonable design and convenient operation.
Drawings
FIG. 1 is a schematic view of the connection between a signal receiving panel and a triangular fixing frame according to the present invention;
FIG. 2 is a schematic view of the back of a signal receiving panel according to the present invention;
FIG. 3 is a schematic diagram of an external signal transceiver according to the present invention;
FIG. 4 is a schematic diagram of a signaling computer according to the present invention;
FIG. 5 is a schematic diagram of a backside signal receiver of the present invention;
FIG. 6 is a schematic diagram of a signal antenna according to the present invention;
FIG. 7 is a schematic view of the connection between the signal receiving screen and the wall lamp frame according to the present invention;
FIG. 8 is a cross-sectional view taken along line A-A of the signal receiving screen and wall lamp frame of FIG. 7 in accordance with the present invention;
fig. 9 is a sectional view of a portion B-B of the signal receiving screen and the wall lamp frame in fig. 8 and an enlarged view of the wall lamp according to the present invention;
fig. 10 is a block diagram of the principle structure of the present invention.
Description of reference numerals: 1, a triangular fixing frame; 2, a signal receiving screen; 3 a back signal receiver; 4, a controller; 5 an external signal transceiver; 6, sending a signal to a computer; 7 a signal receiving antenna box; 8 signal connecting line jacks; 9 power line jacks; 10a signal antenna; 10a arc-shaped routing unit; 11 a wall lamp frame; 12 wall lamps; 13 arc lamp belt; 14 a reflecting surface; 15 arc lamp groove.
Detailed Description
The following is described in further detail with reference to the accompanying drawings and examples:
example 1:
as shown in fig. 1 to 5, a wireless signal return-viewing receiving screen for a studio includes:
a signal transmitting computer 6 for transmitting the broadcast content signal;
the external signal transceiver 5 is used for receiving the playing content signal and transmitting the playing content signal;
a back signal receiver 3 for receiving the playing content signal sent by the signal sending computer 6 or the external signal transceiver 5;
a controller 4 for receiving and decoding the playing content signal received by the back signal receiver 3 and generating a control signal;
the back signal receiver 3 and the controller 4 are fixed on the back of the signal receiving screen 2 and are used for receiving control signals and outputting playing contents;
the triangular fixing frame 1 is arranged at the bottom of the signal receiving screen 2 and has a fixing and supporting function. The structure of the review receiving screen is simple and clear, the playing content signal sent by the signal sending computer 6 is not limited to the caption signal, but also can be a picture or a video, so that the review receiving screen can break through the limitation that the traditional review screen can only see the caption, the picture or the video can be played on the review receiving screen, the application range of the review screen is widened, the economic value of the review screen is improved, a broadcaster can be reminded more vividly, and the working convenience of a studio is improved. The back signal receiver 3 is mainly used for indoor requirements, when a playing content signal source is far away from the back signal receiver 3, the signal sending computer 6 is used in cooperation with the external signal transceiver 5 and is mainly used outside a studio, so that the backsight screen signal receiving method is multiple, the backsight screen signal receiving method can be controlled in a large range, the wireless signal transmission stability is high, and the error rate is low. The lower part of the signal receiving screen 2 is provided with the triangular fixing frame 1, so that the signal receiving screen 2 can be better fixed, the screen flicker is small, the movement is convenient, and the occupied space is small.
The included angle α between two supports of triangle-shaped mount 1 is 60, triangle-shaped mount 1 each support bottom all is connected with the auto-lock pulley, the contained angle α angle matter between two supports for triangle-shaped mount 1 has suitable height and width ratio, the occupation space of triangle-shaped mount 1 has not only been reduced, still make triangle-shaped mount 1 have reliable support fixed action to signal reception screen 2, the auto-lock pulley is convenient for signal reception screen 2's removal and fixed, improve the indoor work convenience of studio, occupation space is few.
One end of the back signal receiver 3 is provided with a signal receiving antenna box 7, and the other end of the back signal receiver 3 is provided with a power line jack 9 and at least one signal connecting line jack 8. The antenna is arranged in the signal receiving antenna box 7, the box body has a protection effect on the antenna, the box body is made of non-shielding materials and does not affect the signal receiving and sending of the antenna, the power line jack 9 is used for supplying power to the back signal receiver 3 and maintaining the normal work of the back signal receiver, and the signal connecting line jack 8 is used for establishing signal connection with other parts so as to transmit a playing content signal received by the back signal receiver 3.
An NFC authentication module is arranged inside the back signal receiver 3. The NFC authentication module enables the back signal receiver 3 to be matched with a component with the NFC authentication module only, and the reliability of wireless transmission of the device is improved.
The back signal receiver 3 employs a BT chip. The wireless chip has low power consumption, high cost performance and high reliability and can realize long-distance transmission.
The display principle of the wireless signal back-viewing receiving screen is as follows:
the signal sending computer 6 sends a playing content signal;
the external signal transceiver 5 receives the playing content signal and transmits the playing content signal;
the back signal receiver 3 receives a playing content signal sent by the signal sending computer 6 or the external signal transceiver 5;
the controller 4 receives and decodes the playing content signal received by the back signal receiver 3 and generates a control signal;
the signal receiving screen 2 receives the control signal and outputs the play content. The display principle of the wireless signal return-viewing receiving screen realizes the display of subtitles, pictures or videos by utilizing wireless transmission, facilitates the remote control of operators, has high transmission stability and brings great convenience to studios.
Conventional techniques in this embodiment are known to those skilled in the art and will not be described in detail here.
Example 2:
as shown in fig. 6, in this embodiment, based on embodiment 1, the further optimized scheme of the antenna provided inside the signal receiving antenna box 7 is as follows: the spiral type gradually-changed signal antenna 10 is arranged in the signal antenna receiving antenna box 7, and the ratio of the lower spiral pitch diameter d1 between two spiral layers in the signal antenna 10 to the upper spiral pitch diameter d2 is 1:0.72-0.85, the signal antenna 10 is formed by reversely splicing a plurality of arc-shaped wiring units 10 a. The signal antenna 10 is composed of metal wires with good electric conductivity, and can transmit and receive polarized electromagnetic signals in space according to a formula
(wherein L isuHIs inductance (uH), d1Is the larger pitch diameter (cm), d of the spiral in two adjacent layers2The smaller pitch diameter (cm) of the spiral in the two adjacent layers, D is the diameter (cm) of the antenna), it can be seen that, when the signal antenna 10 preferably has a diameter D of 0.06-0.11 cm, the preferred ratio of the lower layer spiral pitch diameter d1 to the upper layer spiral pitch diameter d2 between two spiral layers in the signal antenna 10 is 1: 0.72-0.85, under the above proportional range, the signal antenna 10 has larger inductance, and the magnetic field intensity around the antenna changes slowly, and the signal attenuation is slow, so that the wireless communication range of the device of the invention is large, the use is convenient, and the design of the signal antenna 10 formed by reversely splicing a plurality of arc-shaped routing units 10a is matched, the radiation superposition in the signal antenna 10 is enhanced, the same frequency interference can be well inhibited, the signal-to-noise ratio is high, and higher data communication quality is ensured, so that the data packet loss rate is low and the communication error rate is low in the transmission process of the playing content signal.<10-8The effectiveness of wireless transmission is obviously improved, and the working reliability is improved.
According to the above description of the signal antenna 10, the optimal parameters of the signal antenna 10 can be selected as: the most preferable ratio of the lower layer spiral pitch diameter d1 to the upper layer spiral pitch diameter d2 between two spiral layers in the signal antenna 10 is 1: 0.8; the signal antenna 10 most preferably adopts a copper pipe with the diameter D of 0.09 cm; the length of the signal antenna 10 is most preferably 30 cm; the operating frequency of the signal antenna 10 is 25 MHz.
Conventional techniques in this embodiment are known to those skilled in the art and will not be described in detail here.
Example 3:
as shown in fig. 7 to 9, in this embodiment, based on embodiment 1, a further optimization scheme for the signal receiving screen 2 is as follows: the outer edge of the signal receiving screen 2 is connected with a wall lamp frame 11, and wall lamps 12 are uniformly distributed on the inner wall of the wall lamp frame 11. The outer edge of the signal receiving screen 2 is provided with the wall lamp 12, so that the display effectiveness of the signal receiving screen 2 can be improved, the definition of caption, picture or video playing is improved, and the influence of the external environment on display is avoided.
The wall lamp 12 comprises an arc lamp groove 15, an arc lamp strip 13 is connected to the center inside the arc lamp groove 15, reflecting surfaces 14 are arranged on the upper side and the lower side of the arc lamp strip 13, and the ratio of the arc length of the arc lamp strip 13 to the arc length of the arc lamp groove 15 is 1: 1.6. The light in arc lamp area 13 is not only concentrated but also dispersed, can improve signal reception screen 2 visual brightness on every side, has reduced the reporter and has looked the word process and appeared eyestrain phenomenon, and reflecting surface 14 that arc lamp area 13 upper and lower two sides were equipped with can be peripheral to signal reception screen 2 with the too dispersed light reflection of part, avoids light extravagant. The wall lamp 12 with the structural design replaces the traditional LED direct installation method, so that light parallel to the screen and forming 60 degrees with the screen is arranged around the signal receiving screen 2, the display light emitted by the signal receiving screen 2 is changed, and the effect of visual persistence similar to human eyes is generated, so that before the next frame of image is displayed, the previous frame of image can form persistence in the space, the screen flicker is reduced to the state that a broadcaster cannot perceive, the broadcaster cannot flicker with the screen at a low brightness level, the accurate capturing of captions, pictures or video information displayed by the signal receiving screen 2 by the broadcaster is improved, and the working reliability of the device is improved.
The reflecting surface 14 is formed by pressing a film of a reflecting material, and the preferable preparation method of the reflecting material comprises the following steps: mixing 34 parts of nano barium sulfate powder, 11 parts of nano pearl powder and 6 parts of nano titanium dioxide by weight and 35 parts of organic solvent, sending the mixture into a curing machine for ultraviolet curing for 15min, adding 2 parts of film-forming aid, mixing, carrying out infrared curing for 4min, and then carrying out microprism pressing to obtain the reflecting material. The reflecting material prepared by the preparation method has higher reflecting strength and stable property, wherein the organic solvent is purchased conventionally in the market, the film forming auxiliary agent is a mixture of propylene glycol butyl ether and 2- (1-aminoethyl) -4-chlorophenol, the weight ratio of the film forming auxiliary agent to the mixture is 1:0.01, the weight ratio of (R) -2- (1-aminoethyl) -4-chlorophenol to (S) -2- (1-aminoethyl) -4-chlorophenol in the 2- (1-aminoethyl) -4-chlorophenol is 1:0.7, the effect of the film forming auxiliary agent is far better than that of single propylene glycol butyl ether, the added 2- (1-aminoethyl) -4-chlorophenol and the propylene glycol butyl ether have synergistic effect, the conglomeration performance of each component in the reflecting material can be improved, the emulsion film forming mechanism is improved, the film forming condition is reduced, the film forming is accelerated, the connecting bond between nano barium sulfate molecules can be enhanced, the barium sulfate particles are prevented from being broken, the reflecting material forms a stable micro-lattice structure, the reflection effect of the reflecting surface 14 on light emitted by the arc lamp strip 13 is improved, the signal receiving screen 2 can obviously reduce flicker, the accuracy of a broadcaster in reading information on the signal receiving screen 2 is improved, the service life of the reflecting material can also be obviously prolonged under the synergistic effect, and the replacement frequency of the reflecting surface 14 is reduced.
Conventional techniques in this embodiment are known to those skilled in the art and will not be described in detail here.
Example 4:
the working principle of the present invention is further detailed with reference to fig. 10:
when in the studio, the signal sending computer is located in the studio, the signal sending computer sends a playing content signal, the back signal receiver directly receives the playing content signal sent by the signal sending computer and transmits the signal to the controller, the controller analyzes the signal transmitted by the back signal receiver and sends a control instruction, the control signal receiving screen outputs corresponding playing content to finish wireless transmission and display of the playing content in the studio, and the playing content signal can transmit subtitles, pictures or videos.
When the signal sending computer is outside the studio, the signal sending computer is positioned outside the studio, in order to improve the stability of signal transmission and enlarge the control range, the signal sending computer sends a playing content signal, the external signal transceiver receives the playing content signal and forwards the signal, the back signal receiver receives the playing content signal sent by the external signal transceiver and then transmits the signal to the controller, the controller analyzes the signal transmitted by the back signal receiver and sends a control instruction, the signal receiving screen is controlled to output corresponding playing content, the wireless transmission and display of the playing content outside the studio are completed, and the playing content signal can transmit captions, pictures or videos.
Conventional techniques in this embodiment are known to those skilled in the art and will not be described in detail here.
Example 5:
the return-to-watch receiving screen of the invention is used for carrying out a wireless signal transmission error rate test:
test groups: the wireless signal for the studio in the embodiment 1-3 of the invention is adopted to return to the receiving screen;
control group: the back signal receiver in the invention is replaced by a conventional wireless signal receiver on the market, and a wireless transparent transmission terminal purchased from Shenzhen Chong Han scientific and technological development Limited company is adopted.
The test adopts a group of data with the combination of captions, pictures and videos for transmission, the data size is 25 Mm, the data transmission is respectively carried out in a studio and outside the studio, 3 groups of tests are respectively carried out at each place, the test result of each group is the average value of the error rate after 10 times of transmission, the control environmental conditions are the same, and the transmission error rate is recorded in the following table 1 when the detection test group and the comparison group transmit the same group of data.
TABLE 1 error Rate recording Table
The data in the table show that the error rates of the wireless signal transmission of the wireless signal return-viewing receiving screen in the studio and outside the studio are far less than the error rate of the comparison group, so that the error rate of the wireless communication is low, the integral working reliability is high, great convenience can be brought to the broadcasting studio for broadcasting the broadcasting content, and the wireless signal return-viewing receiving screen has good popularization significance.
The included angle α between the two brackets of the triangular fixing frame 1 is not limited to 55-65 degrees, but also includes 55 degrees, 55.1 degrees, 55.2 degrees, 55.3 degrees, 55.4 degrees, … … degrees, 64.9 degrees or 65 degrees.
The ratio of the lower layer spiral pitch diameter d1 to the upper layer spiral pitch diameter d2 between two spiral layers in the signal antenna 10 is not limited to 1: 0.72-0.85, but also includes 1:0.72, 1:0.721, 1:0.722, 1:0.723, 1:0.724 … …, 1:0.849, or 1: 0.85.
The ratio of the arc length of the arc lamp strip 13 to the arc length of the arc lamp groove 15 is not limited to 1: 1.5-1.9, but also includes 1:1.5, 1:1.51, 1:1.5, 1:1.53, 1:1.54 … …, 1:1.89, or 1: 1.9.
The above embodiments are merely illustrative, and not restrictive, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides a studio is with wireless signal reception screen of looking back which characterized in that: the wireless signal returns to look at and receives the screen and includes:
a signal transmitting computer (6) for transmitting the broadcast content signal;
an external signal transceiver (5) for receiving the playing content signal and transmitting the playing content signal;
the back signal receiver (3) is used for receiving the playing content signal sent by the signal sending computer (6) or the external signal transceiver (5);
a controller (4) for receiving and decoding the broadcast content signal received by the back signal receiver (3) and generating a control signal;
the back signal receiver (3) and the controller (4) are fixed on the back of the signal receiving screen (2) and are used for receiving the control signal and outputting playing content;
the triangular fixing frame (1) is arranged at the bottom of the signal receiving screen (2) and has a fixing and supporting function;
one end of the back signal receiver (3) is provided with a signal receiving antenna box (7), and the other end of the back signal receiver (3) is provided with a power line jack (9) and at least one signal connecting line jack (8);
the signal receiving antenna box (7) is internally provided with a spiral gradually-changed signal antenna (10), the ratio of the lower-layer spiral middle diameter d1 between two spiral layers in the signal antenna (10) to the upper-layer spiral middle diameter d2 is 1: 0.72-0.85, and the signal antenna (10) is formed by reversely splicing a plurality of arc-shaped wiring units (10 a).
2. The wireless signal return-viewing receiving screen for the studio according to claim 1, wherein an included angle α between two supports of the triangular fixing frame (1) is 55-65 degrees, and the bottom of each support of the triangular fixing frame (1) is connected with a self-locking pulley.
3. The wireless signal return viewing receiving screen for a studio according to claim 1, wherein: the outer border of signal reception screen (2) be connected with wall lamp frame (11), wall lamp frame (11) inner wall equipartition have wall lamp (12).
4. The wireless signal return viewing receiving screen for a studio according to claim 3, wherein: the wall lamp (12) comprises an arc lamp groove (15), an arc lamp strip (13) is connected to the center inside the arc lamp groove (15), reflecting surfaces (14) are arranged on the upper side and the lower side of the arc lamp strip (13), and the ratio of the arc length of the arc lamp strip (13) to the arc length of the arc lamp groove (15) is 1: 1.5-1.9.
5. The wireless signal return viewing receiving screen for a studio according to claim 1, wherein: an NFC authentication module is arranged in the back signal receiver (3).
6. The wireless signal return viewing receiving screen for a studio according to claim 1, wherein: the back signal receiver (3) adopts one of a WiGig chip, a BT chip or a ZigBee chip.
7. The wireless signal return viewing receiving screen for a studio according to claim 1, wherein: the display principle of the wireless signal return-to-watch receiving screen is as follows:
the signal sending computer (6) sends a playing content signal;
an external signal transceiver (5) receives the playing content signal and transmits the playing content signal;
the back signal receiver (3) receives the playing content signal sent by the signal sending computer (6) or the external signal transceiver (5);
the controller (4) receives and decodes the playing content signal received by the back signal receiver (3) and generates a control signal; and the signal receiving screen (2) receives the control signal and outputs the playing content.
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| CN101136132A (en) * | 2006-09-01 | 2008-03-05 | 温建荣 | LED display system control device and method of use thereof |
| CN200990016Y (en) * | 2006-09-01 | 2007-12-12 | 温建荣 | Wireless controller used for displaying system |
| CN101231805A (en) * | 2007-01-23 | 2008-07-30 | 顾自强 | LED vision screen network coupling control playing platform |
| CN104638359B (en) * | 2015-02-09 | 2018-10-09 | 西安电子科技大学 | A kind of conical four arms sine antenna |
| CN107333029A (en) * | 2016-04-28 | 2017-11-07 | 深圳锐取信息技术股份有限公司 | A kind of presentation-guiding device and director method of football competition broadcast |
| CN206222056U (en) * | 2016-11-17 | 2017-06-06 | 杭州智沃建筑设计有限公司 | A kind of reflective lamp bar of outdoor arc |
| CN107492315A (en) * | 2017-09-25 | 2017-12-19 | 周莉 | A kind of fixed support of LED electronic displays |
-
2017
- 2017-12-20 CN CN201711388585.9A patent/CN108010443B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108010443A (en) | 2018-05-08 |
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