CN213817772U

CN213817772U - Maritime affairs VHF transceiver based on software radio

Info

Publication number: CN213817772U
Application number: CN202023175311.1U
Authority: CN
Inventors: 陈一路; 熊东阳; 郑智耀; 石锦坚
Original assignee: Guangzhou Communication Center Nanhai Navigation Support Center Ministry Of Transport
Current assignee: Guangzhou Communication Center Nanhai Navigation Support Center Ministry Of Transport
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-07-27
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a maritime affairs VHF transceiver based on software radio. The duplexer comprises a receiving and transmitting antenna and a duplexer, wherein a duplexer signal is connected with a power amplifying circuit and a first filter circuit, the power amplifying circuit is connected with a second filter circuit, the first filter circuit is connected with a signal amplifying circuit, the signal amplifying circuit and the second filter circuit are respectively connected with a switch chip, the switch chip is respectively connected with a signal modem and a processor, and the processor controls the switch chip to work according to the current working state so as to connect the signal modem with the second filter circuit or the signal amplifying circuit according to the working state. The utility model discloses accessible human-computer interaction module carries out operating condition and the settlement of waiting communication parameter, and the person of facilitating the use adjusts communication parameter as required, and the treater can be according to operating condition control switch chip work, realizes adopting same treater and signal modem to accomplish the processing of received signal and send signal, reduction equipment cost.

Description

Maritime affairs VHF transceiver based on software radio

Technical Field

The utility model relates to a maritime affairs VHF transceiver technical field, concretely relates to maritime affairs VHF transceiver based on software radio.

Background

The very high frequency communication system (VHF COMM) is an important system in mobile radio communications for civil aviation and maritime short-range communications. Existing transceivers typically employ two separate signal processing loops so that the transmission and reception of signals are processed separately by different processing devices. Because the transceiver is controlled to be in a voice sending working state or a voice receiving working state by the switch, the utilization rate of some devices is low and the cost is high due to the adoption of two independent processing devices. In addition, the conventional communication method is single, and field setting cannot be performed according to use requirements, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the shortcoming that prior art exists, provide a maritime affairs VHF transceiver based on software radio.

In order to achieve the above object, the present invention provides a maritime VHF transceiver based on software radio, comprising a transceiving antenna and a duplexer connected with the transceiving antenna, wherein an input interface of a signal of the duplexer is connected with a power amplifying circuit, a signal output port of the duplexer is connected with a first filter circuit, the power amplifying circuit is connected with a second filter circuit, the first filter circuit is connected with the signal amplifying circuit, the signal amplifying circuit and the second filter circuit are respectively connected with a switch chip, the switch chip is respectively connected with a signal modem and a processor, the processor is connected with a human-computer interaction module, a voice collecting unit and a voice playing unit, the human-computer interaction module is used for setting a current working state, a working frequency band, a modulation and demodulation type, a data format, an encryption mode and a communication protocol, and the processor controls the switch chip to work according to the current working state so as to connect the signal modem with the second filter circuit or the signal amplifying circuit according to the working state.

Further, the model of the signal modem is VM 5500-C.

Furthermore, the model of the duplexer is SGQ-350D.

Further, the processor comprises a 51 single chip microcomputer.

Further, the model of the switch chip is tmux1136 dgsr.

Furthermore, the human-computer interaction module comprises an LCD touch screen and a mode switching button which are connected with the single chip microcomputer.

Has the advantages that: the utility model discloses accessible human-computer interaction module carries out settings such as operating condition, working frequency channel, modem type, data format, encryption mode, communication protocol, and the person of facilitating the use adjusts communication parameter as required, and the treater can be according to operating condition control switch chip work, realizes adopting same treater and signal modem to accomplish the processing of received signal and signals sent, reduction equipment cost.

Drawings

FIG. 1 is a schematic diagram of a marine VHF transceiver based on software radio;

fig. 2 is a pin connection diagram of the switch chip.

Detailed Description

The present invention will be further clarified by the following embodiments with reference to the attached drawings, which are implemented on the premise of the technical solution of the present invention, and it should be understood that these embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention.

As shown in fig. 1 and 2, the embodiment of the present invention provides a maritime VHF transceiver based on software radio, which includes a transceiving antenna 1 and a duplexer 2, wherein the transceiving antenna 1 is connected to the duplexer 2, and the model of the duplexer is preferably SGQ-350D. The signal input interface of the duplexer 2 is connected with the power amplifying circuit 3, the signal output port of the duplexer 2 is connected with the first filter circuit 5, the power amplifying circuit 3 is connected with the second filter circuit 4, the first filter circuit 5 is connected with the signal amplifying circuit 6, the signal amplifying circuit 6 and the second filter circuit 4 are respectively connected with the switch chip 7, and the model of the switch chip is preferably tmux1136 dgsr. The switch chip 7 is connected to the signal modem 8 and the processor 9, respectively. The model of the signal modem is preferably VM5500-C, and the processor 9 can adopt an STM32 single chip microcomputer. The processor 9 is connected with a human-computer interaction module 10, a voice acquisition unit 11 and a voice playing unit 12, the human-computer interaction module 10 is used for setting a current working state, a working frequency band, a modulation and demodulation type, a data format, an encryption mode, a communication protocol and the like, and the processor 9 controls the switch chip 7 to work according to the current working state so as to connect the signal modem 8 with the second filter circuit 4 or the signal amplifying circuit 3 according to the working state. And the power supply module 13 is connected with the components and used for supplying required working voltage to the components.

Specifically, the human-computer interaction module 10 includes an LCD touch screen and a mode switching button connected to the single chip microcomputer 9, the mode switching switch is in a signal receiving position in a normal state when in operation, in a signal receiving operation state, the processor 9 controls the switch chip 7 to connect the signal modulation regulator 8 with the signal amplification circuit 6, the transceiving antenna 1 receives a very high frequency voice signal, the voice signal is processed by the duplexer 2, the first filter circuit 5 and the signal amplification circuit 6 in sequence, and then is sent to the signal modem 8 through the switch switching chip 7 to be demodulated, and then the demodulated signal is sent to the processor 9, so that the processor 9 controls the voice playing unit 12 to play a voice signal sent by the other party. When an operator sets the working state to be a sending signal through the mode switch, the processor 9 controls the switch chip 7 to connect the signal modem 8 with the second filter circuit 4, the voice signal collected by the voice collecting unit 11 is processed by the processor 9 and then sent into the signal modem 8 for modulation, and the signal modulated by the signal modem 8 is sent out through the transceiving antenna 1 after being processed by the switch chip 7, the second filter circuit 4, the power amplifying circuit 3 and the duplexer 2. It should be noted that the LCD touch screen is used to complete setting of a working frequency band, a modulation and demodulation type, a data format, an encryption mode, a communication protocol, and the like, the processor 1 converts the set parameters into corresponding control instructions through internal software, which is the same as that of other existing devices using software radio technology, and then sends the control instructions to the modem 8, and the signal modem 8 modulates and demodulates signals depending on the instructions to complete corresponding work, which is not described again.

The above description is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described belong to the prior art or the common general knowledge to those skilled in the art. Without departing from the principle of the present invention, several improvements and decorations can be made, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A maritime VHF transceiver based on software radio is characterized by comprising a transceiving antenna and a duplexer connected with the transceiving antenna, wherein an input interface of a signal of the duplexer is connected with a power amplification circuit, a signal output port of the duplexer is connected with a first filter circuit, the power amplification circuit is connected with a second filter circuit, the first filter circuit is connected with the signal amplification circuit, the signal amplification circuit and the second filter circuit are respectively connected with a switch chip, the switch chip is respectively connected with a signal modem and a processor, the processor is connected with a man-machine interaction module, a voice acquisition unit and a voice playing unit, the man-machine interaction module is used for setting a current working state, a working frequency band, a modulation and demodulation type, a data format, an encryption mode and a communication protocol, and the processor controls the switch chip to work according to the current working state, so as to connect the signal modem with the second filtering circuit or the signal amplifying circuit according to the working state.

2. A software radio-based maritime VHF transceiver according to claim 1, wherein the signal modem is of the type VM 5500-C.

3. A software radio-based maritime VHF transceiver according to claim 1, wherein the diplexer has a model number of SGQ-350D.

4. A software radio-based maritime VHF transceiver according to claim 1, wherein the processor comprises a 51-chip microcomputer.

5. A maritime VHF transceiver based on software defined radio according to claim 1, characterized in that the switch chip is of the type tmux1136 dgsr.

6. The software radio-based maritime VHF transceiver of claim 1, wherein the human-computer interaction module comprises an LCD touch screen and a mode switching button connected with the single-chip microcomputer.