CN220359154U

CN220359154U - Portable digital transceiver of intelligence shortwave

Info

Publication number: CN220359154U
Application number: CN202322038752.4U
Authority: CN
Inventors: 王洪波; 姚斌
Original assignee: Changsha Sensintel Information Technology Co ltd
Current assignee: Changsha Sensintel Information Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-16
Anticipated expiration: 2033-07-31

Abstract

The utility model is applicable to the technical field of short wave communication, and relates to an intelligent short wave portable digital transceiver, which comprises: the CPU main body is respectively in communication connection with the peripheral circuit and the radio frequency front end; the CPU main body comprises a CPU chip, a power management circuit chip and a storage chip and is used for realizing data processing, storage and control functions; the peripheral circuit comprises a plurality of functional modules and interfaces, and is used for expanding and communicating different functions according to requirements; the radio frequency front end comprises a receiving circuit and a transmitting circuit, and is used for receiving the shortwave signal and demodulating the shortwave signal into a baseband signal, and modulating the baseband signal into the shortwave signal and transmitting the shortwave signal. The utility model has simple structure and convenient operation, realizes the integration of the high-performance computer and the short-wave radio station through the CPU main body and the radio frequency front end, solves the problem of separating the short-wave radio station from the terminal in the prior art, combines a multifunctional peripheral circuit, and improves the comprehensive service capability of the transceiver.

Description

Portable digital transceiver of intelligence shortwave

Technical Field

The utility model belongs to the technical field of short-wave communication, and particularly relates to an intelligent short-wave portable digital transceiver.

Background

The short wave communication is communication by utilizing sky waves, is suitable for medium-distance and long-distance communication, does not need to depend on other communication facilities, is a bottom-protection communication means for the army, and is also a necessary communication means in the fields of personal protection, disaster relief, fishing boats and the like. Short-wave communication has three kinds of services of constant-amplitude report, datagram and telephone traffic report, and the receiving and transmitting tasks cannot be automatically completed without special communication protocol, so that the short-wave communication needs the radio station and the terminal to cooperate to jointly complete the receiving and transmitting of the services.

The existing short-wave communication is generally characterized in that a radio station and a terminal are separated, the terminal is mainly responsible for processing baseband signals (the short-wave terminal signals can be generally regarded as audio signals), the terminal comprises a specially developed terminal and a computer provided with special software, the specially developed terminal is generally responsible for encryption and data file sending and receiving, and the computer provided with the special software is responsible for managing channel setting of the radio station, encoding and decoding of information and the like. The single short-wave radio station has limited service, poor communication quality, poor experience and low efficiency; the radio stations are produced by different factories, and terminals produced by the companies are required to be adapted to different radio stations, so that a large number of redundant designs are required; at the same time, the two devices are used together in the communication process, and extra load and space are added. The patent application with publication number of CN113472906A provides a one-to-many intelligent receiving and transmitting communication system, which comprises a control platform and a plurality of service terminals; the control platform comprises a service server and a first high-speed camera; the first high-speed camera is in communication connection with the service server; the service terminal comprises a service host and radio equipment; the radio station equipment is in communication connection with the service host; the radio station equipment is used for receiving and transmitting the message; the service host is in communication connection with the service server. The radio station and the terminal of the short wave communication in the patent are also separated, and the defect of the existing short wave communication still exists.

Therefore, how to provide a short-wave communication device with high communication efficiency that merges multiple services is a problem to be solved by those skilled in the art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an intelligent short wave portable digital transceiver so as to solve the problems of limited service capacity and low communication efficiency of short wave communication equipment in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an intelligent short wave portable digital transceiver, comprising:

the CPU main body is respectively in communication connection with the peripheral circuit and the radio frequency front end;

the CPU main body comprises a CPU chip, a power management circuit chip and a storage chip, and is used for realizing data processing, storage and control functions;

the peripheral circuit comprises a plurality of functional modules and interfaces, and is used for expanding and communicating different functions according to requirements;

the radio frequency front end comprises a receiving circuit and a transmitting circuit, and is used for receiving the shortwave signal and demodulating the shortwave signal into a baseband signal, and modulating the baseband signal into the shortwave signal and transmitting the shortwave signal.

Further, the CPU chip of the CPU main body adopts RK3588s, the power management circuit chip adopts RK806, and the memory chip adopts LPDDR and EMMC FLASH.

Further, the receiving circuit of the radio frequency front end adopts a Tayloe QSD circuit, the received short wave signal is subjected to quadrature sampling by the FST3253 after being amplified and filtered, a I, Q path of two paths of quadrature signals are obtained, the signals enter an audio chip after being filtered and amplified and are converted into digital signals to be transmitted to the CPU chip, and the CPU chip carries out demodulation and decoding of the digital baseband signals.

Furthermore, the transmitting circuit of the radio frequency front end adopts a QSE circuit, the CPU chip encodes and modulates communication audio signals, texts, images and files to generate baseband signals, two paths of orthogonal digital circuits are generated I, Q through Hilbert transformation and are converted into analog signals through the audio chip, orthogonal sampling is carried out through the FST3253 to synthesize RF signals, and the RF signals are filtered, amplified and transmitted to the antenna.

Further, the functional modules of the peripheral circuit comprise a charging management module, a touch display module, a 4G/5G communication module, a GPS module, a microphone and a loudspeaker.

Further, the interfaces of the peripheral circuit comprise a USB interface, a PCIe interface, a network interface, a serial port, an I2C interface, an I2S interface, a GPIO interface, an MIPI interface and an HDMI interface.

Further, the input power of the charging management module is 12V.

Further, the corresponding interface of the touch display module is an MIPI interface, and the corresponding interfaces of the microphone and the loudspeaker are I2S interfaces or USB interfaces.

Compared with the prior art, the intelligent short wave portable digital transceiver provided by the utility model has at least the following beneficial effects:

the existing short-wave communication is generally characterized in that a radio station and a terminal are separated, the service of an independent short-wave radio station is limited, the communication quality is poor, the experience is poor, and the efficiency is low. The utility model has simple structure and convenient operation, combines the short-wave radio station and the embedded terminal computer into a whole, and compared with the traditional mode of separating the radio station from the terminal of the short-wave communication, the compact design mode of the utility model effectively saves space, reduces the weight and simultaneously reduces the cost; the integrated design of the terminal and the radio station is realized by adopting the high-performance computer, the receiving and the transmitting are integrated, and a plurality of module functions and interfaces are matched, so that the coexistence of a plurality of service functions is realized, and the service capacity and the communication efficiency of intelligent short waves of the equipment are greatly improved.

Drawings

In order to more clearly illustrate the solution of the utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being apparent that the drawings in the following description are some embodiments of the utility model and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic block diagram of an intelligent short wave portable digital transceiver according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a working process of a radio frequency front end signal of an intelligent short wave portable digital transceiver according to an embodiment of the present utility model;

fig. 3 is a schematic signal processing flow chart of an intelligent short wave portable digital transceiver according to an embodiment of the present utility model.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terms used in the specification are used herein for the purpose of describing particular embodiments only and are not intended to limit the present utility model, for example, the orientations or positions indicated by the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are orientations or positions based on the drawings, which are merely for convenience of description and are not to be construed as limiting the present utility model.

The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion; the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. In the description of the utility model and the claims and the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The utility model provides an intelligent short wave portable digital transceiver, which is applied to a short wave communication process, and comprises the following components:

the CPU main body comprises a CPU chip, a power management circuit chip and a storage chip and is used for realizing data processing, storage and control functions;

The utility model has simple structure and convenient operation, realizes the integration of the high-performance computer and the short-wave radio station through the CPU main body and the radio frequency front end, solves the problem of separating the short-wave radio station from the terminal in the prior art, combines a multifunctional peripheral circuit, and improves the comprehensive service capability of the transceiver.

In order to make the technical solution of the present utility model better understood by those skilled in the art, the following description will make clear and complete descriptions of the technical solution in the embodiments of the present utility model with reference to the accompanying drawings.

The utility model provides an intelligent short-wave portable digital transceiver, which is applied to a short-wave communication process and is combined with fig. 1 to 3, and comprises the following components: the CPU main body is respectively in communication connection with the peripheral circuit and the radio frequency front end; the CPU main body comprises a CPU chip RK3588S, a power management circuit chip RK806 and memory chips LPDDR and EMMC FLASH, and is used for realizing data processing, memory and control functions; the peripheral circuit comprises a USB interface, a PCIe interface, a network interface, a serial port, an I2C interface, an I2S interface, a GPIO interface, an MIPI interface, an HDMI interface, a touch display module, a charging management circuit module, a microphone and loudspeaker, a 4G/5G communication module and a GPS module, and is used for expanding and communicating different functions according to requirements; the radio frequency front end comprises a receiving circuit and a transmitting circuit, and is used for receiving the short wave signal and demodulating the short wave signal into a baseband signal, modulating the baseband signal into the short wave signal and transmitting the short wave signal, wherein a radio station adopts a digital radio station scheme, and the receiving circuit part filters and amplifies the received signal through an ADC (analog-to-digital) and then directly converts the received signal into an AD (analog-to-digital) and then is connected to a CPU (Central processing Unit) main body for carrying out carrier demodulation and decoding treatment of the baseband signal; the transmitting circuit encodes and modulates the audio and text signals into audio signals (baseband signals), modulates the audio signals with the baseband signals and transmits the modulated audio signals and the modulated baseband signals to the antenna part for transmission.

Further, in this embodiment, the CPU main body portion adopts a small-card design, the CPU chip RK3588S processor adopts an 8-nanometer process, the 8-core CPU architecture of the 4-core a76+4core a55 has a CPU main frequency up to 2.4GHz, the system running memory can be up to 32GB, the ARM Mali-G610 GPU graphics processor is integrated, and the independent three-core NPU is integrated, so that the system has an independent 6T AI computing power and a rich high-speed interface, and is convenient to expand.

Further, in this embodiment, the rf front end is responsible for modulating a baseband signal (audio signal, where IQ signal is generated first) into a short wave signal and transmitting the short wave signal, and receiving the short wave signal and demodulating the short wave signal into the baseband signal.

Specifically, a Tayloe QSD circuit is adopted in a receiving path, after the received short wave signal is amplified and filtered, orthogonal sampling is carried out by an FST3253 to obtain two paths of I and Q orthogonal signals, the two paths of I and Q orthogonal signals enter an audio chip CS4272 after being filtered and amplified and are converted into digital signals to be transmitted to RK3588s, and the RK3588s carries out relevant processing such as demodulation and decoding of digital baseband signals; the transmitting path adopts a QSE path, which is opposite to a QSD circuit, RK3588s codes and modulates communication audio signals, texts, images and files to generate baseband signals, hilbert transformation is carried out to generate I, Q two paths of orthogonal digital signals, the I, Q paths of orthogonal digital signals are converted into analog signals through CS4272, FST3253 is used for orthogonal sampling to synthesize RF signals, the RF signals are filtered and amplified and then transmitted to an antenna, RK3588s is communicated with Si5351A through I2C to generate suitable carrier signals, an AC74 calculator is used for producing clock signals CLK and/CLK signals through a D-type flip chip 74, the CLK and/CLK signals are respectively 0 DEG and 90 DEG phase-shifted signals, the short wave modulation and demodulation part is completed through software, the antenna system part adopts a telescopic whip antenna, the antenna length is modulated according to different frequency bands, meanwhile, an optional LC network is designed, a selection channel is set through software, and an LC impedance matching network of different frequency bands is selected.

Further, in this embodiment, the peripheral circuit may include components according to the requirements, specifically including a power management circuit, a 12VDC power input, a 12V conversion circuit and a lithium battery charging management circuit that require 5V, 3.3V, etc. power supply, and a lithium battery boost power supply circuit, two rechargeable lithium batteries, an output voltage of 7.4V, and a power of 10000mW; a 10-inch display touch screen with the resolution of 1920x1280@60Hz and an interface of an MIPI interface; the camera is 1300 ten thousand pixels, and the camera interface is an MIPI interface; the audio codec chip and the audio power amplifier chip are connected through an I2S interface or a USB, and a microphone and a loudspeaker are connected to be used for audio acquisition and output; a network interface; a USB interface.

Further, in this embodiment, the intelligent short-wave portable digital transceiver runs the Ubuntu 20.04 system, and the intelligent short-wave portable digital transceiver software function module is divided into tasks such as a communication application program, a 4G/5G communication task, a GPS positioning, a short-wave protocol server, a baseband signal processing module, a radio frequency signal processing module, and the like, and meanwhile, a specific camera driver, audio driver and touch screen driver are required to be completed.

Specifically, the application program interface adopts a chat-room-like interface, and comprises voice, characters, pictures, files, conversation and positioning, the application program actually completes the fusion and distribution of communication, and the collection and display of various signals, the short-wave datagram communication protocol server is based on a self-developed short-wave communication protocol, and comprises data file classification, compression decompression, grouping, verification, retransmission, framing and other mechanisms, the speed self-adaptation and multi-carrier parallel communication mechanism is realized together with a digital baseband signal, and the radio frequency signal processing is used for completing the functions of the digital part of an SDR (Software Defined Radio, software radio) radio station and mainly processing the tasks of digital filtering, IQ modulation/demodulation and the like. For the received signal, pattern recognition (Mode Demux) and filtering in a suitable frequency band are required, and for the transmitted signal, pattern synthesis is required.

Compared with the prior art, the intelligent short-wave portable digital transceiver has the advantages that the existing short-wave communication is generally separated from a terminal, the service of an independent short-wave radio station is limited, the communication quality is poor, the experience is poor, and the efficiency is low. The utility model has simple structure and convenient operation, combines the short-wave radio station and the embedded terminal computer into a whole, and compared with the traditional mode of separating the radio station from the terminal of the short-wave communication, the compact design mode of the utility model effectively saves space, reduces the weight and simultaneously reduces the cost; the integrated design of the terminal and the radio station is realized by adopting the high-performance computer, the receiving and the transmitting are integrated, and a plurality of module functions and interfaces are matched, so that the coexistence of a plurality of service functions is realized, and the service capacity and the communication efficiency of intelligent short waves of the equipment are greatly improved.

It is apparent that the above-described embodiments are merely preferred embodiments of the present utility model, not all of which are shown in the drawings, which do not limit the scope of the utility model. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims

1. An intelligent short wave portable digital transceiver, comprising:

2. The intelligent short wave portable digital transceiver of claim 1, wherein the CPU chip of the CPU body employs RK3588s, the power management circuit chip employs RK806, and the memory chip employs LPDDR and EMMC FLASH.

3. The portable digital transceiver of claim 1, wherein the receiving circuit of the radio frequency front end adopts a Tayloe QSD circuit, the received short wave signal is subjected to quadrature sampling by an FST3253 after being amplified and filtered, and I, Q paths of quadrature signals are obtained, filtered and amplified, enter an audio chip, are converted into digital signals, and are transmitted to the CPU chip, and the CPU chip demodulates and decodes the digital baseband signals.

4. The portable digital transceiver of claim 3, wherein the transmitting circuit of the radio frequency front end adopts a QSE circuit, the CPU chip encodes and modulates the communication audio signal, text, image and file to generate a baseband signal, two paths of quadrature digital circuits generated by Hilbert transform are converted into analog signals through the audio chip, and the analog signals are quadrature sampled and synthesized by the FST3253 to form an RF signal, and the RF signal is filtered and amplified and then transmitted to the antenna.

5. The intelligent short wave portable digital transceiver of claim 1, wherein the peripheral circuit functional modules include a charge management module, a touch display module, a 4G/5G communication module, a GPS module, a microphone, and a speaker.

6. The intelligent short wave portable digital transceiver of claim 5, wherein the interface of the peripheral circuit comprises a USB interface, a PCIe interface, a network interface, a serial port, an I2C interface, an I2S interface, a GPIO interface, a MIPI interface, and an HDMI interface.

7. The intelligent short wave portable digital transceiver according to claim 5, wherein the charging management module input power is 12V.

8. The intelligent short wave portable digital transceiver according to claim 6, wherein the corresponding interface of the touch display module is an MIPI interface, and the corresponding interfaces of the microphone and the speaker are I2S interfaces or USB interfaces.