CN214256313U

CN214256313U - Unmanned aerial vehicle communication module

Info

Publication number: CN214256313U
Application number: CN202120668270.5U
Authority: CN
Inventors: 钟利强; 赵胜; 陈彬
Original assignee: Chengdu Dingwave Electronic Technology Co ltd
Current assignee: Chengdu Dingwave Electronic Technology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-09-21
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses an unmanned aerial vehicle communication module, which comprises a signal processor, a data conversion module, a signal sending channel, a signal receiving channel, a single-pole double-throw switch, a low-pass filter and a signal receiving and sending port; the data conversion module comprises an AD conversion channel and a DA conversion channel; the signal transmission channel comprises a first AMP amplifier, a first SAW filter, a second AMP amplifier and a power amplifier; the signal receiving channel comprises a low noise amplifier and a second SAW filter; the signal receiving and transmitting port is connected with the moving end of the single-pole double-throw switch through a low-pass filter. The utility model discloses can guarantee communication quality at signal receiving and dispatching in-process filtering outband spurious and harmonic.

Description

Unmanned aerial vehicle communication module

Technical Field

The invention relates to the field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle communication module.

Background

The unmanned plane is called unmanned plane for short, is an unmanned aerial vehicle operated by utilizing a radio remote control device and a self-contained program control device, and is a general name of the unmanned aerial vehicle actually. Along with the development of science and technology, unmanned aerial vehicles have begun to be widely applied to the aspects of social production and life, for example, unmanned aerial vehicle inspection, unmanned aerial vehicle monitoring, unmanned aerial vehicle irrigation, unmanned aerial vehicle pesticide spraying and the like, and great convenience is brought to people's production and life.

Unmanned aerial vehicle communication module mainly used unmanned aerial vehicle transmits with outside/remote platform, is unmanned aerial vehicle's important component, and unmanned aerial vehicle communication module's quality will directly influence unmanned aerial vehicle's normal work, consequently, provides a high performance unmanned aerial vehicle communication module, has significant to unmanned aerial vehicle work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides an unmanned aerial vehicle communication module, can be at signal receiving and dispatching in-process filtering outband stray and harmonic, guarantees communication quality.

The purpose of the utility model is realized through the following technical scheme: an unmanned aerial vehicle communication module comprises a signal processor, a data conversion module, a signal sending channel, a signal receiving channel, a single-pole double-throw switch, a low-pass filter and a signal receiving and sending port;

the data conversion module comprises an AD conversion channel and a DA conversion channel; the signal transmission channel comprises a first AMP amplifier, a first SAW filter, a second AMP amplifier and a power amplifier; the signal receiving channel comprises a low noise amplifier and a second SAW filter;

the signal receiving and transmitting port is connected with the moving end of the single-pole double-throw switch through the low-pass filter, the input end of the DA conversion channel is connected with the signal processor, and the output end of the DA conversion channel is connected to one fixed end of the single-pole double-throw switch through the first AMP amplifier, the first SAW filter, the second AMP amplifier and the power amplifier in sequence; the input end of the low-noise amplifier is connected with the other fixed end of the single-pole double-throw switch, and the output end of the low-noise amplifier is connected to the signal processor through the second SAW filter and the AD conversion channel in sequence.

The utility model has the advantages that: the utility model discloses can guarantee communication quality at signal receiving and dispatching in-process filtering outband spurious and harmonic, simultaneously through the amplitude limit to received signal, can avoid the device among the receiving channel to receive the large signal and strike and damage.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

fig. 2 is a schematic diagram of the specific structure of the present invention.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1, an unmanned aerial vehicle communication module, its characterized in that: the device comprises a signal processor, a data conversion module, a signal sending channel, a signal receiving channel, a single-pole double-throw switch, a low-pass filter and a signal receiving and sending port;

In an embodiment of the present application, the signal receiving channel further includes a limiter, where the limiter is disposed between the input end of the low noise amplifier and the single-pole double-throw switch; the low-pass filter adopts LFCN-2000 +;

in the embodiment of the application, the data conversion module adopts an AD9361 chip containing an AD conversion channel and a DA conversion channel; the type of the signal processor is XC7Z030-FFG 676; the chip integrates ARM Cortex A9 dual cores and FPGA, as shown in FIG. 2, a Processing System (generally abbreviated as PS) is a processor (ARM Cortex A9 MPCore) part, the resources in the Processing System are very rich, and the Processing System has Programmable Logic (generally abbreviated as PL) Programmable part (FPGA); the essence of the PS is an ARM Cortex A9 MPCore, so we can use only the PS part if we do not use the programmable part. That is, for the ZYNQ chip, the PS part can be used completely independently, independent of the PL part. The essence of the PL part is the Xilinx FPGA. In ZYNQ, PL can be considered to be another reconfigurable "peripheral" of the PS, which can be controlled by an ARM processor as a slave to the PS part. For example, when the number of serial ports of arm (ps) is not enough, when the ethernet interface is not enough, or when a video interface is needed, the PL part can be used for extension. Certainly, the PL part can also be regarded as a master device which is not controlled by the ARM processor and is equivalent to the ARM processor, and actively completes data interaction with an external chip and an interface. Even the PL part can be used as the main equipment of the whole system, actively acquires and stores data from the memory of the APU part, and can control the operation of the ARM processor; at XC7Z030-FFG676, a JTAG interface is also arranged so as to be convenient for configuring the PL part, and the JTAG interface is used for connecting a debugging contact pin; in the above embodiment, the unmanned aerial vehicle communication module further includes a flight control interface module connected to the signal processor, where the flight control interface module includes a plurality of RS422 interfaces, and in the embodiment of the present application, the number of the RS422 interfaces is 4, and in the embodiment of the present application, the flight control interface further includes a 5.5V DC power supply port, and the unmanned aerial vehicle communication module further includes a power supply module, configured to receive a power supply voltage from the 5.5V DC power supply port, and supply power to the entire unmanned aerial vehicle communication module after conversion; the unmanned aerial vehicle communication module further comprises a storage module, and the storage module is connected with the signal processor; the memory module comprises 1GB DDR3 particles, QSPI FLASH and EEPROM; in the embodiment of the application, the PS part of XC7Z030-FFG676 is provided with an ETH port, a UART1 port, a UART2 port, an SPI port, a DDR3 port, a QSPI port and an I2C port, wherein the ETH port is connected with a debugging pin through a PHY interface; the UART1 port is connected with a first RS422 interface in the flight control interface module through a first 422 level converter; the UART2 port is connected to a second RS422 interface in the flight control interface module through a second 422 level converter; the SPI port is used for connecting an SPI port in the AD9361, the DDR3 port is used for connecting 1GB DDR3 particles, the QSPI port is used for connecting QSPI FLASH, and the I2C port is used for connecting an EEPROM; a third RS422 interface in the flight control interface module is connected to a PL part of XC7Z030-FFG676 through a third 422 level shifter and is used for realizing transmission of graph-transmitted data; a fourth RS422 interface in the flight control interface module is connected to a PL part of XC7Z030-FFG676 through a fourth 422 level shifter so as to realize the transmission of the graph transmission clock; the PL part of XC7Z030-FFG676 is connected with an LVDS interface of an AD9361 to realize data interaction, a TX1 port of an AD9361 chip is connected with a first AMP amplifier, and an RX1 port of the AD9361 chip is connected with a second SAW filter; the AD9361 chip is also provided with a clock port for connecting a TCXO clock of 40 MHZ; XC7Z030-FFG676 also has a clock port for the PL part and a clock port for the PS part for connecting clock sources of 125MHz and 33.33MHz, respectively.

It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit and essence of the invention, and these changes and modifications should fall within the scope of the appended claims.

Claims

1. An unmanned aerial vehicle communication module, its characterized in that: the device comprises a signal processor, a data conversion module, a signal sending channel, a signal receiving channel, a single-pole double-throw switch, a low-pass filter and a signal receiving and sending port;

2. The unmanned aerial vehicle communication module of claim 1, wherein: the low pass filter uses LFCN-2000 +.

3. The unmanned aerial vehicle communication module of claim 1, wherein: the data conversion module adopts an AD9361 chip comprising an AD conversion channel and a DA conversion channel.

4. The unmanned aerial vehicle communication module of claim 1, wherein: the model of the signal processor is XC7Z030-FFG 676.

5. The unmanned aerial vehicle communication module of claim 1, wherein: unmanned aerial vehicle communication module still includes the flight control interface module who is connected with signal processor, flight control interface module includes a plurality of RS422 interfaces.

6. The unmanned aerial vehicle communication module of claim 1, wherein: the signal receiving channel further comprises an amplitude limiter, and the amplitude limiter is arranged between the input end of the low noise amplifier and the single-pole double-throw switch.

7. The unmanned aerial vehicle communication module of claim 1, wherein: the unmanned aerial vehicle communication module further comprises a storage module, and the storage module is connected with the signal processor.