CN117156082A - Unmanned aerial vehicle image transmission four-way receiving system and method - Google Patents
Unmanned aerial vehicle image transmission four-way receiving system and method Download PDFInfo
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- CN117156082A CN117156082A CN202311041694.9A CN202311041694A CN117156082A CN 117156082 A CN117156082 A CN 117156082A CN 202311041694 A CN202311041694 A CN 202311041694A CN 117156082 A CN117156082 A CN 117156082A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 239000011521 glass Substances 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims description 7
- 238000013139 quantization Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 8
- 238000004590 computer program Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Classifications
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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
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
Abstract
The invention discloses a four-way receiving system and a four-way receiving method for unmanned aerial vehicle image transmission, wherein the system comprises the following steps: the device comprises an analog receiver, a 1 in/3 out splitter, a CVBS recorder, a CVBS-SDI module, a CVBS-HDMI module, fly-eye glasses and a broadcasting guide table; the 1-in 3-out splitter is used for copying the CVBS signals to obtain three paths of same CVBS signals, and transmitting the three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively. The invention can copy the CVBS signals sent by the analog receiver based on the 1-in and 3-out splitter to obtain three paths of same CVBS signals, realizes DVR recording, outputting to the fly glasses and HDMI outputting of the image signal of the unmanned aerial vehicle, and can be widely applied to the field of communication.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an unmanned aerial vehicle image transmission four-way receiving system and method.
Background
The unmanned plane used in the unmanned plane racing exercise is a picture transmission of an analog signal, so that interference frequency-series is easy to occur, and particularly, some flyers may require re-racing (which may not be the case in practice) for the reason of the interference frequency-series during a competition, and a sponsor is hard to audit due to lack of recording equipment with public confidence.
The prior art has the defects that: the DVR recording and outputting to the fly glasses and HDMI outputting can not be carried out on the image signal of the unmanned aerial vehicle.
Disclosure of Invention
In view of this, the embodiment of the invention provides a system and a method for receiving unmanned aerial vehicle image transmission in four paths, so as to record DVR, output to fly-eye glasses and HDMI output image transmission signals of the unmanned aerial vehicle at the same time.
An aspect of the embodiment of the present invention provides an unmanned aerial vehicle image transmission four-way receiving system, including: the device comprises an analog receiver, a 1 in/3 out splitter, a CVBS recorder, a CVBS-SDI module, a CVBS-HDMI module, fly-eye glasses and a broadcasting guide table;
the analog receiver is used for receiving a picture transmission signal sent by the flying-hand unmanned aerial vehicle, converting the picture transmission signal into a CVBS signal, and transmitting the CVBS signal to the 1-in 3-out splitter;
the 1-in 3-out splitter is used for copying the CVBS signals to obtain three paths of same CVBS signals, and transmitting the three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively;
the CVBS recorder is used for decoding and converting the CVBS signal into a digital signal and storing the decoded CVBS signal;
the CVBS-SDI conversion module is used for converting the CVBS signal into an SDI signal and transmitting the SDI signal to the fly-hand glasses;
the CVBS-HDMI conversion module is used for converting the CVBS signal into an HDMI signal and transmitting the HDMI signal to the broadcasting guide station;
the fly-hand glasses are used for playing video shot by the unmanned aerial vehicle according to the SDI signals;
and the broadcasting guide station is used for playing video shot by the unmanned aerial vehicle according to the HDMI signal.
Preferably, the 1 in 3 out splitter is an LM324 chip.
Preferably, the analog receiver is a Rapidfire receiver.
Preferably, the CVBS recorder is configured to decode and convert the CVBS signal into a digital signal, and includes:
the CVBS recorder is used for sampling the CVBS signal according to a set interval to obtain a discrete time signal, wherein the sampling amplitude is an integer multiple of a preset minimum number unit; and carrying out quantization processing on the discrete time signals to obtain digital signals.
Another aspect of the embodiment of the present invention further provides an unmanned aerial vehicle graph transmission four-way receiving method, which is applied to the 1 in/3 out splitter in the unmanned aerial vehicle graph transmission four-way receiving system, and includes:
receiving a CVBS signal sent by an analog receiver;
copying the CVBS signals to obtain three paths of same CVBS signals;
and transmitting the three CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively.
Another aspect of the embodiment of the present invention further provides an unmanned aerial vehicle image transmission four-way receiving device, including:
a signal receiving unit for receiving the CVBS signal transmitted by the analog receiver;
the signal copying unit is used for copying the CVBS signals to obtain three paths of same CVBS signals;
and the signal transmission unit is used for respectively transmitting three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module.
Another aspect of the embodiment of the invention also provides an electronic device, which includes a processor and a memory;
the memory is used for storing programs;
the processor executes the program to implement the method described above.
Another aspect of the embodiments of the present invention also provides a computer-readable storage medium storing a program that is executed by a processor to implement the above-described method.
Embodiments of the present invention also disclose a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions may be read from a computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the method described above.
The invention can copy the CVBS signal sent by the analog receiver based on the 1-in and 3-out splitter to obtain three paths of identical CVBS signals, and respectively transmit the CVBS signals to the CVBS recorder, the CVBS-SDI module and the CVBS-HDMI module, so that the CVBS recorder can record the CVBS signals and then the DVR, the fly glasses can play the SDI signals obtained by converting the CVBS signals, and the broadcasting station can play the HDMI signals obtained by converting the CVBS signals, thereby realizing DVR recording, outputting to the fly glasses and HDMI outputting of the image transmission signals of the unmanned aerial vehicle. Meanwhile, recording equipment with public trust can be improved for the unmanned aerial vehicle racing exercise, and the auditing of the unmanned aerial vehicle racing exercise sponsor to the flyer is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a system architecture diagram of an unmanned aerial vehicle image transmission four-way receiving system provided by an embodiment of the invention;
fig. 2 is a schematic flow chart of a four-way receiving method for image transmission of an unmanned aerial vehicle according to an embodiment of the present invention;
fig. 3 is a block diagram of a four-way receiving device for unmanned aerial vehicle image transmission according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, an embodiment of the present invention provides an unmanned aerial vehicle image transmission four-way receiving system, which specifically includes: the device comprises an analog receiver, a 1-in 3-out splitter, a CVBS recorder, a CVBS-SDI module, a CVBS-HDMI module, fly-eye glasses and a broadcasting guide table.
The function of the individual components of the system according to the invention can be explained, inter alia, with reference to the following:
the analog receiver is used for receiving the image transmission signal sent by the unmanned aerial vehicle, converting the image transmission signal into a CVBS signal and transmitting the CVBS signal to the 1-in 3-out splitter. In an alternative embodiment, the analog receiver may be a Rapidfire receiver.
The 1-in 3-out splitter is used for copying the CVBS signals to obtain three paths of same CVBS signals, and transmitting the three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively. In an alternative embodiment, the 1 in 3 out splitter may be an LM324 chip.
The CVBS recorder is used for decoding and converting the CVBS signal into a digital signal and storing the decoded CVBS signal.
Specifically, the process of the CVBS recorder for decoding and converting the CVBS signal into a digital signal may include:
s1, the CVBS recorder is used for sampling the CVBS signal according to a set interval to obtain a discrete time signal, and the sampling amplitude is an integer multiple of a preset minimum number unit.
S2, carrying out quantization processing on the discrete time signals to obtain digital signals.
The CVBS-SDI conversion module is used for converting the CVBS signal into an SDI signal and transmitting the SDI signal to the fly-hand glasses. The CVBS-HDMI conversion module is used for converting the CVBS signal into an HDMI signal and transmitting the HDMI signal to the broadcasting guide station. The fly-hand glasses are used for playing video shot by the unmanned aerial vehicle according to the SDI signals. The broadcast guiding station is used for playing video shot by the unmanned aerial vehicle according to the HDMI signal.
Referring to fig. 2, the embodiment of the invention provides a four-way receiving method for unmanned aerial vehicle image transmission, which specifically comprises the following steps:
step S100: and receiving the CVBS signal sent by the analog receiver.
Step S110: and copying the CVBS signals to obtain three paths of same CVBS signals.
Step S120: and transmitting the three CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively.
In order to describe the present invention in more detail, practical application of the present invention will be described in the following with specific examples.
Specifically, the 1 in/3 out splitter may be LM324, and perform a replica amplification process on the same signal.
After receiving the unmanned aerial vehicle image transmission signal through the Rapidfire receiver, outputting a CVBS signal to a 1-in 3-out splitter for signal copying, wherein the original CVBS signal is changed into three paths of identical signals, and at the moment, one path of CVBS signal is input into a CVBS recorder for decoding and converting the CVBS signal into a digital signal, and the decoding and converting process can comprise the following steps: the CVBS signal is first sampled at equal intervals, where the CVBS signal is no longer continuous in time but is still continuous in amplitude. After the sampling process, the CVBS signal becomes a discrete-time signal. The amplitude of each signal sample is measured in integer multiples of some minimum number of units delta. The CVBS signal is not only discontinuous in time but also discontinuous in amplitude. After quantization processing, the discrete-time signal becomes a digital signal. The CVBS recorder can then record the digital signal. The other path of CVBS signal is converted into an SDI signal through a CVBS-SDI conversion module and is output to the fly-hand glasses, and finally the other path of CVBS signal is output to a CVBS-HDMI conversion module which outputs an HDMI signal to the broadcasting station for subsequent broadcasting expansion.
Referring to fig. 3, an embodiment of the present invention provides an unmanned aerial vehicle image transmission four-way receiving device, including:
a signal receiving unit for receiving the CVBS signal transmitted by the analog receiver;
the signal copying unit is used for copying the CVBS signals to obtain three paths of same CVBS signals;
and the signal transmission unit is used for respectively transmitting three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module.
Embodiments of the present invention also disclose a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions may be read from a computer-readable storage medium by a processor of a computer device, and executed by the processor, to cause the computer device to perform the method shown in fig. 2.
In some alternative embodiments, the functions/acts noted in the block diagrams may occur out of the order noted in the operational illustrations. For example, two blocks shown in succession may in fact be executed substantially concurrently or the blocks may sometimes be executed in the reverse order, depending upon the functionality/acts involved. Furthermore, the embodiments presented and described in the flowcharts of the present invention are provided by way of example in order to provide a more thorough understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is changed, and in which sub-operations described as part of a larger operation are performed independently.
Furthermore, while the invention is described in the context of functional modules, it should be appreciated that, unless otherwise indicated, one or more of the described functions and/or features may be integrated in a single physical device and/or software module or one or more functions and/or features may be implemented in separate physical devices or software modules. It will also be appreciated that a detailed discussion of the actual implementation of each module is not necessary to an understanding of the present invention. Rather, the actual implementation of the various functional modules in the apparatus disclosed herein will be apparent to those skilled in the art from consideration of their attributes, functions and internal relationships. Accordingly, one of ordinary skill in the art can implement the invention as set forth in the claims without undue experimentation. It is also to be understood that the specific concepts disclosed are merely illustrative and are not intended to be limiting upon the scope of the invention, which is to be defined in the appended claims and their full scope of equivalents.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments described above, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the appended claims.
Claims (8)
1. The unmanned aerial vehicle image transmission four-way receiving system is characterized by comprising: the device comprises an analog receiver, a 1 in/3 out splitter, a CVBS recorder, a CVBS-SDI module, a CVBS-HDMI module, fly-eye glasses and a broadcasting guide table;
the analog receiver is used for receiving a picture transmission signal sent by the flying-hand unmanned aerial vehicle, converting the picture transmission signal into a CVBS signal, and transmitting the CVBS signal to the 1-in 3-out splitter;
the 1-in 3-out splitter is used for copying the CVBS signals to obtain three paths of same CVBS signals, and transmitting the three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively;
the CVBS recorder is used for decoding and converting the CVBS signal into a digital signal and storing the decoded CVBS signal;
the CVBS-SDI conversion module is used for converting the CVBS signal into an SDI signal and transmitting the SDI signal to the fly-hand glasses;
the CVBS-HDMI conversion module is used for converting the CVBS signal into an HDMI signal and transmitting the HDMI signal to the broadcasting guide station;
the fly-hand glasses are used for playing video shot by the unmanned aerial vehicle according to the SDI signals;
and the broadcasting guide station is used for playing video shot by the unmanned aerial vehicle according to the HDMI signal.
2. The unmanned aerial vehicle image transmission four-way receiving system according to claim 1, wherein the 1-in 3-out splitter is an LM324 chip.
3. The unmanned aerial vehicle four-way reception system of claim 1, wherein the analog receiver is a Rapidfire receiver.
4. The unmanned aerial vehicle four-way transmission receiving system of claim 1, wherein the CVBS recorder is configured to decode and convert the CVBS signal into a digital signal, and comprises:
the CVBS recorder is used for sampling the CVBS signal according to a set interval to obtain a discrete time signal, wherein the sampling amplitude is an integer multiple of a preset minimum number unit; and carrying out quantization processing on the discrete time signals to obtain digital signals.
5. The unmanned aerial vehicle image transmission four-way receiving method is characterized by being applied to the 1-in-3-out splitter in the unmanned aerial vehicle image transmission four-way receiving system, which is any one of claims 1 to 4, and comprises the following steps:
receiving a CVBS signal sent by an analog receiver;
copying the CVBS signals to obtain three paths of same CVBS signals;
and transmitting the three CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module respectively.
6. The utility model provides an unmanned aerial vehicle picture passes four way receiving arrangement which characterized in that includes:
a signal receiving unit for receiving the CVBS signal transmitted by the analog receiver;
the signal copying unit is used for copying the CVBS signals to obtain three paths of same CVBS signals;
and the signal transmission unit is used for respectively transmitting three paths of CVBS signals to the CVBS recorder, the CVBS-SDI conversion module and the CVBS-HDMI conversion module.
7. An electronic device comprising a processor and a memory;
the memory is used for storing programs;
the processor executing the program implements the method of claim 5.
8. A computer-readable storage medium, wherein the storage medium stores a program that is executed by a processor to implement the method of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311041694.9A CN117156082A (en) | 2023-08-17 | 2023-08-17 | Unmanned aerial vehicle image transmission four-way receiving system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311041694.9A CN117156082A (en) | 2023-08-17 | 2023-08-17 | Unmanned aerial vehicle image transmission four-way receiving system and method |
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| Publication Number | Publication Date |
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| CN117156082A true CN117156082A (en) | 2023-12-01 |
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| CN202311041694.9A Pending CN117156082A (en) | 2023-08-17 | 2023-08-17 | Unmanned aerial vehicle image transmission four-way receiving system and method |
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- 2023-08-17 CN CN202311041694.9A patent/CN117156082A/en active Pending
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