Multifunctional antenna for underwater unmanned vehicle and application method thereof

Abstract

The invention belongs to the technical field of underwater unmanned vehicles, and particularly relates to a multifunctional antenna for an underwater unmanned vehicle and an application method of the multifunctional antenna. The multifunctional antenna is composed of an antenna body, a UHF antenna, a WiFi communication antenna, a Beidou antenna, a GPS positioning antenna, an AIS antenna, a radio frequency coaxial cable, a stroboscope lamp, a photoelectric sensor, a pressure sensor, a fixing base, a pressure-resistant glass clamping pipe and the like. The method comprises the steps that the pressure-resistant glass clamping pipe is crushed under the action of seawater high pressure, and the multifunctional antenna is released; and when the position is detected, the stroboscope lamp flickers, the antenna is started to work, a position short message is sent to the Beidou satellite, and meanwhile position indicating rescue information is sent out through an AIS channel. According to the invention, UHF, WiFi communication, Beidou, GPS positioning, a stroboscope lamp and AIS emergency rescue signals are integrated into a whole, the multifunctional antenna is manufactured, and the multifunctional antenna can be separated from the UUV for emergency rescue in an emergency.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater unmanned vehicles, and in particular to a multifunctional antenna for underwater unmanned vehicles and an application method thereof. Background Art

[0002] At present, UUV (Underwater Unmanned Vehicle) technology is developing rapidly, and more and more UUV models are being developed and finalized at home and abroad. All UUVs are equipped with strobe lights, UHF, GPS, Beidou and other antennas, but they are all arranged in a scattered manner, resulting in numerous and messy antennas on the UUV platform, affecting the fluid performance of the UUV navigation, and even causing damage to the antenna due to complex underwater conditions, affecting the normal operation of the UUV; in addition, the current UUVs do not have AIS functions, and it is difficult for surrounding ships to detect UUVs when they are sailing on the surface, which has a great impact on the navigation safety of UUVs. After an accident occurs in the UUV, it is also difficult for surrounding ships to discover and rescue in time. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the current underwater unmanned vehicle (UUV) has too many communication antennas and cannot realize emergency functions. To this end, a multifunctional antenna for an underwater unmanned vehicle and an application method thereof are provided.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A multifunctional antenna for an underwater unmanned vehicle comprises an antenna body, which is made of a light pressure-resistant material. A UHF antenna, a WiFi communication antenna, a Beidou antenna, a GPS positioning antenna and an AIS antenna are installed inside the antenna body. The antenna body is installed on a fixing seat through a pressure-resistant glass clamping tube.

[0006] The following is a technical solution further defined by the multifunctional antenna in the present invention: a strobe light is installed on the top of the antenna body, and the strobe light is set to be an LED white light, and the flashing time is once every 5 to 10 seconds.

[0007] The following is a technical solution further defined by the multifunctional antenna in the present invention: the UHF antenna and the WiFi communication antenna share a communication antenna, the Beidou antenna and the GPS positioning antenna share a positioning antenna, and the AIS antenna serves as a rescue antenna.

[0008] The following is a further technical solution of the multifunctional antenna in the present invention, wherein the lightweight pressure-resistant material is configured as a buoyancy material comprising solid glass microspheres.

[0009] The following is a further technical solution of the multifunctional antenna in the present invention, wherein the lightweight pressure-resistant material is configured as polypropylene containing solid glass microbeads.

[0010] The following is a further technical solution of the multifunctional antenna in the present invention, wherein the antenna body is configured to be wing-shaped.

[0011] The following is a technical solution further defined by the multifunctional antenna in the present invention. A cable is connected to the bottom of the antenna body, and the cable is electrically connected to the UHF antenna, the WiFi communication antenna, the Beidou antenna, the GPS positioning antenna and the AIS antenna.

[0012] The following is a further technical solution of the multifunctional antenna in the present invention: the fixing seat is provided with a fixing through hole, the bottom of the antenna body is located in the fixing through hole and the pressure-resistant glass clamping tube is inserted into the gap between the two.

[0013] An application method based on the multifunctional antenna comprises the following steps:

[0014] Step S1: installing the multifunctional antenna on a fixing seat of the underwater unmanned vehicle and clamping it with a pressure-resistant glass clamping tube;

[0015] Step S2: The underwater unmanned vehicle dives and works. When the diving depth of the underwater unmanned vehicle is greater than the maximum working depth, the pressure-resistant glass clamp tube is crushed by the high pressure of seawater, releasing the multifunctional antenna;

[0016] Step S3: The multifunctional antenna floats up to the surface of the water because the buoyancy is greater than the gravity;

[0017] Step S4: The multifunctional antenna is provided with a photoelectric sensor and a pressure sensor. After the multifunctional antenna floats to the surface, the pressure sensor detects the pressure change and transmits the pressure change to the underwater unmanned vehicle via a cable. The underwater unmanned vehicle then transmits the signal to the UHF antenna, the WiFi communication antenna, the Beidou antenna, the GPS positioning antenna and the AIS antenna via a cable, starts the antenna, sends a location SMS to the Beidou satellite, and sends a location-indicating rescue message through the AIS channel at the same time;

[0018] Step S5: When it is daytime, the photoelectric sensor detects light, and the strobe light does not flash on, reducing power consumption, and the strobe light is a white LED light that reflects sunlight; when it is night, the photoelectric sensor does not detect light, and the strobe light flashes on.

[0019] The following is a technical solution further defined by the method of the present invention. In step S5, when there are waves during the day and the multifunctional antenna is below the water surface and cannot reflect sunlight, the pressure sensor detects a constantly changing pressure signal, and the photoelectric sensor detects a constantly changing light signal, thereby controlling the strobe light to flash and light up;

[0020] The UHF antenna, WiFi communication antenna, Beidou antenna, GPS positioning antenna and AIS antenna have different operating frequency bands and there is no electromagnetic interference between them.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] The present invention integrates UHF, WiFi communication, Beidou, GPS positioning and strobe light, AIS emergency rescue signal into one to make a multifunctional antenna. With the help of the special installation method of the multifunctional antenna, in an emergency, the multifunctional antenna can be separated from the UUV to realize the emergency rescue function. Therefore, the multifunctional antenna has the functions of communication, positioning, rescue, etc., which reduces the number of antennas arranged on the aircraft platform, can effectively reduce the resistance of the aircraft, improve the speed and endurance of the aircraft, and improve the safety of the aircraft.

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a front view structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0027] Figure 3 It is a partial perspective structural schematic diagram of the present invention.

[0028] Figure numerals: 1. strobe light; 2. antenna body; 3. fixing seat; 4. cable; 5. pressure-resistant glass clamp tube; 6. communication antenna; 7. positioning antenna; 8. rescue antenna. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] like Figure 1-3 As shown, a multifunctional antenna for underwater unmanned vehicles is provided, which integrates UHF, WiFi communication, Beidou, GPS positioning, strobe light 1, AIS emergency rescue and other functions.

[0033] The multifunctional antenna is composed of an antenna body 2, a UHF antenna, a WiFi communication antenna, a Beidou antenna, a GPS positioning antenna, an AIS antenna, a radio frequency coaxial cable 4, a strobe light 1, a photoelectric sensor, a pressure sensor, a fixing seat 3, a pressure-resistant glass card tube 5, and the like.

[0034] The antenna body 2 is made of lightweight pressure-resistant material. The buoyancy of the entire antenna body 2 should be greater than the overall gravity of the multifunctional antenna. The materials that can be used include buoyancy materials of solid glass beads, polypropylene, etc., which are wing-shaped designs that take fluid effects into consideration.

[0035] Strobe light 1 is set to LED white light, flashing once every 5 to 10 seconds.

[0036] The RF coaxial cable 4 has a wire diameter of about 1.13 mm and a length that meets the maximum working water depth or emergency depth requirements of the UUV. The RF coaxial cable 4 is electrically connected to the UHF antenna, WiFi communication antenna, Beidou antenna, GPS positioning antenna, and AIS antenna.

[0037] The fixing seat 3 is used to install the multifunctional antenna on the UUV, that is, the antenna body 2 is installed on the fixing seat 3 through the pressure-resistant glass clamping tube 5. Specifically, the fixing seat 3 is penetrated with a fixing through hole, the bottom of the antenna body 2 is in the fixing through hole and the pressure-resistant glass clamping tube 5 is inserted into the gap between the two.

[0038] The pressure-resistant glass clamp tube 5 meets the pressure-resistant requirement of the maximum working depth of the UUV.

[0039] The UHF antenna and the WiFi communication antenna share a communication antenna 6, the Beidou antenna and the GPS positioning antenna share a positioning antenna 7, and the AIS antenna serves as a rescue antenna 8. The AIS information sent by the AIS channel of the AIS antenna meets international standards such as ITU-RM.1371-5, IEC 62287-1, IMO SN / Cir 227, and IALA Guideline NO.1024.

[0040] A method for applying a multifunctional antenna, the main steps are:

[0041] 1. Install the multifunctional antenna on the fixing seat 3 of the underwater unmanned vehicle and clamp it with the pressure-resistant glass clamping tube 5.

[0042] 2. The underwater unmanned vehicle dives for operation. When the diving depth of the underwater unmanned vehicle is greater than the maximum working depth, the pressure-resistant glass clamping tube 5 is crushed by the high pressure of seawater, releasing the multifunctional antenna.

[0043] 3. The multifunctional antenna floats up to the surface of the water because the buoyancy is greater than the gravity.

[0044] 4. The multifunctional antenna is provided with a photoelectric sensor and a pressure sensor. After the multifunctional antenna surfaces, the pressure sensor detects the pressure change and transmits it to the underwater unmanned vehicle via cable 4. The underwater unmanned vehicle then transmits the signal to the UHF antenna, WiFi communication antenna, Beidou antenna, GPS positioning antenna and AIS antenna via cable 4, starts the antenna, sends a location SMS to the Beidou satellite, and sends a location-indicating rescue information through the AIS channel at the same time. The UHF antenna, WiFi communication antenna, Beidou antenna, GPS positioning antenna and AIS antenna have different operating frequency bands and there is no electromagnetic interference between them.

[0045] 5. During the day, the photoelectric sensor detects light, and the strobe light 1 does not flash on, reducing power consumption, and the strobe light 1 is a white LED light that reflects sunlight; during the night, the photoelectric sensor does not detect light, and the strobe light 1 flashes on; when encountering waves during the day and the multi-function antenna is below the water surface and cannot reflect sunlight, the pressure sensor detects the constantly changing pressure signal, and the photoelectric sensor detects the constantly changing light signal, thereby controlling the strobe light 1 to flash on.

[0046] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional antenna for an underwater unmanned vehicle, characterized in that: It includes an antenna body, which is made of light pressure-resistant material. A UHF antenna, a WiFi communication antenna, a Beidou antenna, a GPS positioning antenna and an AIS antenna are installed inside the antenna body. The antenna body is installed on a fixing seat through a pressure-resistant glass clamp tube.

2. A multifunctional antenna for an underwater unmanned vehicle as claimed in claim 1, characterized in that: A strobe light is installed on the top of the antenna body. The strobe light is set to be an LED white light, and the flashing time is once every 5 to 10 seconds.

3. The multifunctional antenna for an underwater unmanned vehicle according to claim 1, characterized in that: The UHF antenna and the WiFi communication antenna share a communication antenna, the Beidou antenna and the GPS positioning antenna share a positioning antenna, and the AIS antenna serves as a rescue antenna.

4. The multifunctional antenna for an underwater unmanned vehicle according to claim 1, characterized in that: The lightweight pressure-resistant material is configured as a buoyancy material comprising solid glass microspheres.

5. The multifunctional antenna for an underwater unmanned vehicle according to claim 1, characterized in that: The lightweight pressure-resistant material is polypropylene containing solid glass microspheres.

6. The multifunctional antenna for an underwater unmanned vehicle according to claim 1, characterized in that: The antenna body is configured to be wing-shaped.

7. The multifunctional antenna for an underwater unmanned vehicle according to claim 1, characterized in that: A cable is connected to the bottom of the antenna body, and the cable is electrically connected to the UHF antenna, the WiFi communication antenna, the Beidou antenna, the GPS positioning antenna and the AIS antenna.

8. The multifunctional antenna for an underwater unmanned vehicle according to claim 1, characterized in that: The fixing seat is penetrated with a fixing through hole, the bottom of the antenna body is located in the fixing through hole and the pressure-resistant glass clamping tube is inserted into the gap between the two with interference fit.

9. An application method based on the multifunctional antenna according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step S1: installing the multifunctional antenna on a fixing seat of the underwater unmanned vehicle and clamping it with a pressure-resistant glass clamping tube; Step S2: The underwater unmanned vehicle dives and works. When the diving depth of the underwater unmanned vehicle is greater than the maximum working depth, the pressure-resistant glass clamp tube is crushed by the high pressure of seawater, releasing the multifunctional antenna; Step S3: The multifunctional antenna floats up to the surface of the water because the buoyancy is greater than the gravity; Step S4: The multifunctional antenna is provided with a photoelectric sensor and a pressure sensor. After the multifunctional antenna floats to the surface, the pressure sensor detects the pressure change and transmits the pressure change to the underwater unmanned vehicle via a cable. The underwater unmanned vehicle then transmits the signal to the UHF antenna, the WiFi communication antenna, the Beidou antenna, the GPS positioning antenna and the AIS antenna via a cable, starts the antenna, sends a location SMS to the Beidou satellite, and sends a location-indicating rescue message through the AIS channel at the same time; Step S5: When it is daytime, the photoelectric sensor detects light, and the strobe light does not flash on, reducing power consumption, and the strobe light is a white LED light that reflects sunlight; when it is night, the photoelectric sensor does not detect light, and the strobe light flashes on.

10. The application method according to claim 9, characterized in that: In step S5, when there are waves during the day and the multifunctional antenna is below the water surface and cannot reflect sunlight, the pressure sensor detects a constantly changing pressure signal and the photoelectric sensor detects a constantly changing light signal, thereby controlling the strobe light to flash and light up; The UHF antenna, WiFi communication antenna, Beidou antenna, GPS positioning antenna and AIS antenna have different operating frequency bands and there is no electromagnetic interference between them.

Images