An unmanned target ship anti-interference communication device based on multi-band switching

Abstract

The utility model relates to unmanned target ship anti -jamming communication device technical field, and disclose a kind of unmanned target ship anti -jamming communication device based on multi-frequency band switching, including box, the top of box is provided with digital-analog converter, the top of digital-analog converter is installed with multiple radio frequency transceiver units, the top of multiple radio frequency transceiver units is provided with mounting hole, the middle of mounting hole is provided with duplexer, the top of duplexer is provided with multi-frequency band antenna, the inner side wall of mounting hole is provided with internal thread, the mounting hole is connected with antenna protective cover by internal thread, the bottom of box is connected with mounting base, the bottom of mounting base is provided with magnetic fixing base.The left and right ends of the mounting base of the utility model are all connected with magnetic fixing base by fastening bolt through mounting base and are threadedly connected, so that it can be adsorbed on the metal surface of target ship, and the installation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-jamming communication devices for unmanned target ships, specifically an anti-jamming communication device for unmanned target ships based on multi-band switching. Background Technology

[0002] The anti-jamming communication device for unmanned target ships is a device specifically designed to cope with complex electromagnetic environments. Through technologies such as signal encryption, frequency switching, and directional transmission, it ensures that unmanned target ships can maintain stable communication even in electronic warfare or jamming attacks.

[0003] Existing anti-jamming communication devices for unmanned target ships based on multi-band switching cannot be attached to the metal surface of the target ship during use, resulting in poor installation convenience. The antenna protective cover is also inconvenient to disassemble and clean. Therefore, there is an urgent need for an anti-jamming communication device for unmanned target ships based on multi-band switching to solve the above technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-jamming communication device for unmanned target ships based on multi-band switching, so as to solve the problems mentioned in the background art, that existing anti-jamming communication devices for unmanned target ships based on multi-band switching cannot be adsorbed on the metal surface of the target ship during use, resulting in poor installation convenience and inconvenient disassembly and cleaning of the antenna protective cover.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An anti-jamming communication device for unmanned target ships based on multi-band switching includes a housing. A digital-to-analog converter (DAC) is mounted on the top of the housing. Multiple radio frequency (RF) transceiver units are mounted on the top of the DAC. Mounting holes are formed on the top of the RF transceiver units, and a duplexer is positioned in the center of each mounting hole. A multi-band antenna is mounted on the top of the duplexer. Internal threads are formed on the inner wall of each mounting hole, and an antenna shield is connected to the mounting hole via these threads. A mounting base is connected to the bottom of the housing, and a magnetic fixing base is positioned at the bottom of the mounting base. Both ends of the mounting base are threadedly connected to the magnetic fixing base via fastening bolts passing through the mounting base. A baseband processing unit is located inside the housing. A spectrum sensing and channel evaluation module is located below the baseband processing unit. An intelligent decision-making and switching control module is located to the right of the spectrum sensing and channel evaluation module, and a communication protocol and waveform reconstruction module is located to the right of the intelligent decision-making and switching control module.

[0006] As a preferred embodiment of this utility model, the bottom circumferential of the antenna protective cover is provided with an external thread, and the antenna protective cover and the mounting hole are connected by the external thread and the internal thread.

[0007] As a preferred embodiment of this utility model, the multi-band antenna, duplexer, multiple sets of radio frequency transceiver units, digital-to-analog converter and baseband processing unit are sequentially and electrically connected.

[0008] In a preferred embodiment of this invention, the baseband processing unit, the spectrum sensing and channel evaluation module, the intelligent decision-making and switching control module, and the communication protocol and waveform reconstruction module are sequentially and electrically connected.

[0009] As a preferred embodiment of this utility model, the communication protocol is electrically connected to the waveform reconstruction module and the baseband processing unit.

[0010] As a preferred embodiment of this utility model, the number of fastening bolts is set to four, and the four fastening bolts are arranged in pairs facing each other.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. Both ends of the mounting base of this utility model are connected to the magnetic fixing base by fastening bolts passing through the mounting base, so that the magnetic fixing base can be attached to the metal surface of the target ship, improving the ease of installation.

[0012] 2. The antenna protective cover of this utility model is connected to the mounting hole by external and internal threads, making the antenna protective cover easy to disassemble and clean. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model; Figure 3 This is a cross-sectional view of the antenna protective cover of this utility model; Figure 4 This is an enlarged structural schematic diagram of the multiple sets of radio frequency transceiver units of this utility model.

[0014] In the diagram: 1. Housing; 2. Digital-to-analog converter; 3. Multiple RF transceiver units; 4. Mounting hole; 5. Internal thread; 6. Antenna protective cover; 7. Multi-band antenna; 8. External thread; 9. Baseband processing unit; 10. Spectrum sensing and channel evaluation module; 11. Intelligent decision-making and switching control module; 12. Communication protocol and waveform reconstruction module; 13. Duplexer; 14. Mounting base; 15. Magnetic fixing base; 16. Fastening bolts. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0016] Please see Figure 1-4 An anti-jamming communication device for unmanned target ships based on multi-band switching includes a housing 1. A digital-to-analog converter 2 is installed on the top of the housing 1. Multiple radio frequency transceiver units 3 are mounted on the top of the digital-to-analog converter 2. Mounting holes 4 are opened on the top of the multiple radio frequency transceiver units 3. A duplexer 13 is set in the middle of the mounting hole 4. A multi-band antenna 7 is set on the top of the duplexer 13. An internal thread 5 is provided on the inner side wall of the mounting hole 4. An antenna protective cover 6 is connected to the mounting hole 4 through the internal thread 5. A mounting base 14 is connected to the bottom of the housing 1. A magnetic fixing device is provided at the bottom of the mounting base 14. The left and right ends of the mounting base 14 are connected to the magnetic fixing base 15 by fastening bolts 16 passing through the mounting base 14, so that the magnetic fixing base 15 can be attached to the metal surface of the target ship, improving the ease of installation. The housing 1 is equipped with a baseband processing unit 9. Below the baseband processing unit 9 is a spectrum sensing and channel evaluation module 10. To the right of the spectrum sensing and channel evaluation module 10 is an intelligent decision and switching control module 11. To the right of the intelligent decision and switching control module 11 is a communication protocol and waveform reconstruction module 12.

[0017] The antenna cover 6 has an external thread 8 on its bottom circumference. The antenna cover 6 and the mounting hole 4 are connected by the external thread 8 and the internal thread 5, which makes the antenna cover 6 easy to disassemble and clean.

[0018] Among them, the multi-band antenna 7, duplexer 13, multiple sets of radio frequency transceiver units 3, digital-to-analog converter 2 and baseband processing unit 9 are electrically connected in sequence.

[0019] The baseband processing unit 9, the spectrum sensing and channel evaluation module 10, the intelligent decision-making and switching control module 11, and the communication protocol and waveform reconstruction module 12 are electrically connected in sequence.

[0020] The communication protocol and waveform reconstruction module 12 is electrically connected to the baseband processing unit 9.

[0021] The number of fastening bolts 16 is set to four, and the four fastening bolts 16 are arranged in pairs facing each other.

[0022] The working principle and usage process of this utility model are as follows: First, the multi-band antenna can effectively cover multiple working frequency bands on one or more antenna units. The duplexer is a key switching component. According to the control command, it connects the transceiver to the currently working antenna and radio frequency path. When there are multiple transceiver units, it is responsible for channel selection. The device contains multiple independent radio frequency transmission and reception channels, each tuned to a different frequency band. The baseband processing unit 9 is typically composed of a high-performance digital signal processor (DSP) and a field-programmable gate array (FPGA), and is the core of all intelligent processing algorithms. The spectrum sensing and channel evaluation module 10 continuously or periodically scans all available alternative frequency bands. The intelligent decision-making and handover control module 11 determines whether to switch and which frequency band to switch to based on the information provided by the channel evaluation module and according to the preset handover algorithm and strategy. The communication protocol and waveform reconstruction module 12 is responsible for quickly re-establishing the communication link on the new frequency band once the decision module issues the handover command. After the device is powered on, it first establishes communication with the peer on the default primary frequency band. Simultaneously, the spectrum sensing module, either in parallel or during communication gaps, controls other radio frequency units to scan all preset backup frequency bands, collecting quality information for each channel. If the communication quality (e.g., bit error rate) of the current operating frequency band begins to rise, or if strong interference signals are detected, and monitoring reveals that the communication quality of a certain backup frequency band is significantly better than the current frequency band, the decision module, based on the above information and a preset strategy, determines whether the switching conditions are met. If met, a switching command is generated, and the target frequency band is determined. Through an independent, highly robust common signaling channel, or before the current channel deteriorates, a switching request and parameters are quickly sent to the peer, controlling the switching matrix to switch the transceiver path to the radio frequency unit of the target frequency band. The baseband processing unit rapidly reconstructs the waveform, configuring parameters such as carrier frequency and modem to the new frequency band. After the peer completes the same operation, both parties resynchronize on the new frequency band, resuming data transmission. The link operates stably on the new frequency band, and the monitoring process continues, preparing for the next possible switching. Both ends of the mounting base 14 are threadedly connected to the magnetic fixing base 15 through fastening bolts 16, so that the magnetic fixing base 15 can be attached to the metal surface of the target ship, improving the ease of installation. The antenna protective cover 6 is threadedly connected to the mounting hole 4 through external thread 8 and internal thread 5, so that the antenna protective cover 6 is easy to disassemble and clean. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An anti-jamming communication device for unmanned target ships based on multi-band switching, comprising a housing (1), characterized in that: A digital-to-analog converter (2) is provided on the top of the housing (1). Multiple radio frequency transceiver units (3) are installed on the top of the digital-to-analog converter (2). Mounting holes (4) are provided on the top of the multiple radio frequency transceiver units (3). A duplexer (13) is provided in the middle of the mounting hole (4). A multi-band antenna (7) is provided on the top of the duplexer (13). An internal thread (5) is provided on the inner side wall of the mounting hole (4). An antenna shield (6) is connected to the mounting hole (4) through the internal thread (5). A mounting base (14) is connected to the bottom of the housing (1). A magnetic fixing base (15) is provided at the bottom of the housing (1). Both ends of the mounting base (14) are threadedly connected to the magnetic fixing base (15) through the mounting base (14) by fastening bolts (16). A baseband processing unit (9) is provided inside the housing (1). A spectrum sensing and channel evaluation module (10) is provided below the baseband processing unit (9). An intelligent decision and handover control module (11) is provided on the right side of the spectrum sensing and channel evaluation module (10). A communication protocol and waveform reconstruction module (12) is provided on the right side of the intelligent decision and handover control module (11).

2. The anti-jamming communication device for unmanned target ships based on multi-band switching according to claim 1, characterized in that: The bottom circumferential of the antenna shield (6) is provided with an external thread (8), and the antenna shield (6) and the mounting hole (4) are connected by the external thread (8) and the internal thread (5).

3. The anti-jamming communication device for unmanned target ships based on multi-band switching according to claim 1, characterized in that: The multi-band antenna (7), duplexer (13), multiple sets of radio frequency transceiver units (3), digital-to-analog converter (2) and baseband processing unit (9) are sequentially electrically connected.

4. The anti-jamming communication device for unmanned target ships based on multi-band switching according to claim 1, characterized in that: The baseband processing unit (9), spectrum sensing and channel evaluation module (10), intelligent decision-making and switching control module (11), and communication protocol and waveform reconstruction module (12) are sequentially electrically connected.

5. The anti-jamming communication device for unmanned target ships based on multi-band switching according to claim 1, characterized in that: The communication protocol is electrically connected to the waveform reconstruction module (12) and the baseband processing unit (9).

6. The anti-jamming communication device for unmanned target ships based on multi-band switching according to claim 1, characterized in that: The number of the fastening bolts (16) is set to four, and the four fastening bolts (16) are arranged in pairs opposite each other.

Images