CN203608201U - Unmanned plane ultra low latency digital high definition image relay module - Google Patents
Unmanned plane ultra low latency digital high definition image relay module Download PDFInfo
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- CN203608201U CN203608201U CN201320751218.1U CN201320751218U CN203608201U CN 203608201 U CN203608201 U CN 203608201U CN 201320751218 U CN201320751218 U CN 201320751218U CN 203608201 U CN203608201 U CN 203608201U
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Abstract
The utility model provides an unmanned plane ultra low latency digital high definition image relay module. The unmanned plane ultra low latency digital high definition image relay module comprises a power supply module; a receiving antenna used for receiving spatial wireless signals; a band pass filter connected with the receiving antenna and used for filtering the wireless signals; a COFDM demodulation board connected with the band pass filter and used for demodulating the wireless signals to be digital signals; a COFDM modulation board connected with the COFDM demodulation board and used for generating radiofrequency signals having different frequency bands; a linear power amplifier module connected with the COFDM modulation board and used for amplifying the radiofrequency signals; a transmitting antenna connected with the COFDM modulation board and used for transmitting the signals; and a control interface board respectively connected with the COFDM demodulation board and the COFDM modulation board and used for allowing an external control terminal to set parameters for the relay module. The problems in the prior art that a relay station is very difficult to build, installation process is complex, maintenance is difficult and cost is high and the like are solved. A wireless image transmission system is advantaged by high image definition, little transmission delay, high anti-interference capability, small size, light weight and convenient use.
Description
Technical field
The utility model relates to communication technical field, refers to especially the ultralow time delay digital high-definition of a kind of unmanned plane image trunk module.
Background technology
Along with the development of wireless communication technology, Wireless Image Transmission Systems has been widely used in the fields such as public security, People's Armed Police, fire-fighting, electric power, oil, mining, traffic, forest fire protection, emergency communication.
At present, individual combat Wireless Image Transmission Systems is according to the difference of environment, transmission range is generally in 1km～5km, if need to increase transmission range, except increasing transmitting power, optimum selection is to increase relay station, and relay station volume is large, the set-up time long, need to set up steel tower etc., at environment, in severe or emergency communication, it is unscientific often increasing such relay station, and condition does not also allow.
Utility model content
The purpose of this utility model is to provide one and has that image definition is high, transmission delay is little, antijamming capability is strong, the ultralow time delay digital high-definition of the unmanned plane image trunk module that volume weight is little, easy to use.
To achieve these goals, the utility model has adopted following technical scheme: the ultralow time delay digital high-definition of a kind of unmanned plane image trunk module, comprise power module, for receiving the reception antenna of spacing wireless signal, be connected with reception antenna and for filtering the band pass filter of wireless signal, be connected with band pass filter and separate tuned plate for the COFDM that wireless signal is demodulated to digital signal, separate with COFDM that tuned plate is connected and for generation of the COFDM modulation panel of different frequency range radiofrequency signal, be connected with COFDM modulation panel and for by radiofrequency signal amplify linear power amplification module, be connected with COFDM modulation panel and transmitting antenna for signal is launched, separate tuned plate with COFDM respectively and COFDM modulation panel is connected and the control interface plate that this trunk module parameter arranged for external control end.
Further, described COFDM separates tuned plate and is provided with DiB9090M chip.
Further, described COFDM modulation panel is provided with chnnel coding, OFDM modulation, up-conversion and FPGA processor.
Further, also comprise box body, described band pass filter, COFDM solution tuned plate, COFDM modulation panel, linear power amplification module, control interface plate, power module are all integrated in one and are located in this box body.
Further, described box body is made up of housing and the lid being covered on housing, is embedded with power module interface, reception antenna interface, transmitting antenna interface and control interface plate interface on described housing.
Further, described reception antenna, band pass filter, COFDM separate between tuned plate, COFDM modulation panel, linear power amplification module, control interface plate, power module, transmitting antenna and all connect by data wire.
The beneficial effects of the utility model are: adopt after said structure, each system module is integrated in one and is located on unmanned plane, make this trunk module flexibility high, under emergency communication or severe condition, also can use, solve in prior art that relay station sets up that difficulty is high, installation process is complicated, is difficult to safeguard, high in cost of production problem.Used COFDM to separate tuned plate and COFDM modulation panel simultaneously and carried out the processing of signal, therefore, individual combat Wireless Image Transmission Systems transmitting image definition is high, transmission delay is little, antijamming capability is strong, volume weight is little, easy to use.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment technical scheme, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only that the utility model is in order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The ultralow time delay digital high-definition of Fig. 1 unmanned plane image trunk module theory diagram;
The ultralow time delay digital high-definition of Fig. 2 unmanned plane image trunk module stereogram;
The ultralow time delay digital high-definition of Fig. 3 unmanned plane image trunk module structural representation;
Fig. 4 COFDM separates tuned plate theory diagram;
Fig. 5 COFDM modulation frequency conversion plate theory diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, the ultralow time delay digital high-definition of a kind of unmanned plane image trunk module shown in Fig. 2 and Fig. 3, comprise power module 12, for receiving the reception antenna 7 of spacing wireless signal, be connected with reception antenna 7 and for filtering the band pass filter 9 of wireless signal, be connected with band pass filter 9 and separate tuned plate 10 for the COFDM that wireless signal is demodulated to digital signal, separate with COFDM that tuned plate 10 is connected and for generation of the COFDM modulation panel 13 of different frequency range radiofrequency signal, be connected with COFDM modulation panel 13 and for by radiofrequency signal amplify linear power amplification module 14, be connected with COFDM modulation panel 13 and transmitting antenna 8 for signal is launched, separate tuned plate 10 with COFDM respectively and COFDM modulation panel 13 is connected and the control interface plate that this trunk module parameter arranged for external control end.
Reception antenna 7 receives the wireless signal from space, demodulate TS streaming digital signal by entering COFDM solution tuned plate 10 after band pass filter 9, enter again COFDM modulation panel 13, produce the radiofrequency signal of another frequency range, linear power amplification module 14 amplifies this signal, finally launches by transmitting antenna 8.
Power module 12 is for converting the power supply on unmanned plane to the required voltage of other circuit of this module, for trunk module provides electric power, control interface plate 11 is control boards that COFDM separates tuned plate 10, COFDM modulation panel 13, for external control end, the parameter of this module is arranged.
As shown in Figure 4, described COFDM separates tuned plate 10 and uses DiB9090M chip, and this DiB9090M chip completes the processing procedure from RF radiofrequency signal to MPEG-TS, inner integrated VHF, UHF and L-band receiving front-end, and integrated level is high, and peripheral components is simple, and cost is low.Easy to use, receptivity is good, highly sensitive.
As shown in Figure 5, described COFDM modulation panel 13 is provided with chnnel coding, OFDM modulation, up-conversion and FPGA processor.The TS stream signal that COFDM solution tuned plate 10 demodulates directly enters COFDM modulation panel 13, and this COFDM modulation panel 13 is to modulate by chnnel coding and OFDM the digital modulation mode combining, and powerful code correction ability is provided.Its basic skills is to tell data flow by going here and there and changing, to be assigned on some orthogonal sub-channels that transmission rate is lower and to transmit, to be therefore called Coded Orthogonal Frequency Division Multiplexing (COFDM).This modulation system the most important thing is to utilize fast Fourier transform (FFT) to realize multi-carrier modulation, the utility model selects FPGA as core processor, it is as parallel processing system (PPS), can adopt parallel computation to complete complicated design, the each TS of TS stream signal that COFDM solution tuned plate 10 demodulates is surrounded by 188byte composition, after entering FPGA processor, mainly pass through energy dissipation, error correction coding, interleaving treatment, frame forms, the processes such as OFDM modulation, after FPGA processor is processed, the digital signal forming is through DAC conversion, produce base band orthogonal signalling, radio-frequency (RF) local oscillator signal last and that produced by ADF4350 carries out quadrature modulation, produce the radiofrequency signal for wireless transmission.
As shown in Figures 2 and 3, also comprise box body, described band pass filter 9, COFDM solution tuned plate 10, COFDM modulation panel 13, linear power amplification module 14, control interface plate 11, power module 12 are all integrated in one and are located in this box body, described box body is made up of housing 1 and the lid 2 being covered on housing 1, is embedded with power module interface 3, reception antenna interface 4, transmitting antenna interface 5 and control interface plate interface 6 on described housing 1.Described reception antenna 7, band pass filter 9, COFDM separate between tuned plate 10, COFDM modulation panel 13, linear power amplification module 14, control interface plate 11, power module 12, transmitting antenna 8 and all connect by data wire; Like this by each system integration in one, volume is little, is convenient for carrying.
In the process using, to affect receiving sensitivity in order preventing from transmitting, to transmit and receive and use different frequencies, and guarantee that two frequency intervals are enough large, utilize feeder line that transmitting antenna 8 and reception antenna 7 are placed in to position far away, to increase transmitting receiving range simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (6)
1. the ultralow time delay digital high-definition of a unmanned plane image trunk module, it is characterized in that: comprise power module (12), for receiving the reception antenna (7) of spacing wireless signal, be connected with reception antenna (7) and for filtering the band pass filter (9) of wireless signal, be connected with band pass filter (9) and separate tuned plate (10) for the COFDM that wireless signal is demodulated to digital signal, separate with COFDM that tuned plate (10) is connected and for generation of the COFDM modulation panel (13) of different frequency range radiofrequency signal, be connected with COFDM modulation panel (13) and for by radiofrequency signal amplify linear power amplification module (14), be connected with COFDM modulation panel (13) and transmitting antenna (8) for signal is launched, separate tuned plate (10) with COFDM respectively and COFDM modulation panel (13) is connected and the control interface plate (11) that this trunk module parameter arranged for external control end.
2. the ultralow time delay digital high-definition of unmanned plane according to claim 1 image trunk module, is characterized in that: described COFDM separates tuned plate (10) and is provided with DiB9090M chip.
3. the ultralow time delay digital high-definition of unmanned plane according to claim 1 image trunk module, is characterized in that: described COFDM modulation panel (13) is provided with chnnel coding, OFDM modulation, up-conversion and FPGA processor.
4. the ultralow time delay digital high-definition of unmanned plane according to claim 1 image trunk module, it is characterized in that: also comprise box body, described band pass filter (9), COFDM solution tuned plate (10), COFDM modulation panel (13), linear power amplification module (14), control interface plate (11), power module (12) are all integrated in one and are located in this box body.
5. the ultralow time delay digital high-definition of unmanned plane according to claim 4 image trunk module, it is characterized in that: described box body is made up of housing (1) and the lid (2) that is covered on housing (1), is embedded with power module interface (3), reception antenna interface (4), transmitting antenna interface (5) and control interface plate interface (6) on described housing (1).
6. according to the ultralow time delay digital high-definition of the unmanned plane image trunk module described in claim 1～5 any one claim, it is characterized in that: described reception antenna (7), band pass filter (9), COFDM solution tuned plate (10), COFDM modulation panel (13), linear power amplification module (14), control interface plate (11), power module (12), transmitting antenna all connect by data wire between (8).
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| CN201320751218.1U CN203608201U (en) | 2013-11-25 | 2013-11-25 | Unmanned plane ultra low latency digital high definition image relay module |
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| CN201320751218.1U CN203608201U (en) | 2013-11-25 | 2013-11-25 | Unmanned plane ultra low latency digital high definition image relay module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684571A (en) * | 2013-11-25 | 2014-03-26 | 成都时代星光科技有限公司 | Ultralow-delay digital high-definition image relay module of unmanned aerial vehicle |
| CN106851188A (en) * | 2015-12-07 | 2017-06-13 | 深圳市科卫泰实业发展有限公司 | Unmanned plane high definition wireless relay system |
| US11368002B2 (en) | 2016-11-22 | 2022-06-21 | Hydro-Quebec | Unmanned aerial vehicle for monitoring an electrical line |
-
2013
- 2013-11-25 CN CN201320751218.1U patent/CN203608201U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684571A (en) * | 2013-11-25 | 2014-03-26 | 成都时代星光科技有限公司 | Ultralow-delay digital high-definition image relay module of unmanned aerial vehicle |
| CN106851188A (en) * | 2015-12-07 | 2017-06-13 | 深圳市科卫泰实业发展有限公司 | Unmanned plane high definition wireless relay system |
| CN106851188B (en) * | 2015-12-07 | 2019-10-11 | 深圳市科卫泰实业发展有限公司 | Unmanned plane high definition wireless relay system |
| US11368002B2 (en) | 2016-11-22 | 2022-06-21 | Hydro-Quebec | Unmanned aerial vehicle for monitoring an electrical line |
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