CN115201745A - Fixed beacon and navigation device for deep seabed - Google Patents

Fixed beacon and navigation device for deep seabed Download PDF

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Publication number
CN115201745A
CN115201745A CN202210674251.2A CN202210674251A CN115201745A CN 115201745 A CN115201745 A CN 115201745A CN 202210674251 A CN202210674251 A CN 202210674251A CN 115201745 A CN115201745 A CN 115201745A
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China
Prior art keywords
signal
battery
energy
deep
navigation device
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刘洋
吴春瑜
李阳
杨帅飞
马宁华
徐建明
赵嘉伟
刘世超
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Shanghai Institute of Space Power Sources
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Shanghai Institute of Space Power Sources
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Priority to CN202210674251.2A priority Critical patent/CN115201745A/en
Publication of CN115201745A publication Critical patent/CN115201745A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
    • G01S1/74Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

A fixed beacon and navigation device for a deep and far seabed comprises a radioactive isotope battery, a micro-energy intelligent management circuit, a lithium battery and an acoustoelectric transducer. The radioactive isotope battery converts the radiation energy of the radioactive isotope into electric energy through a radiant volt effect/a radiant photovoltaic effect or a semiconductor thermoelectric conversion effect or the like; the micro-energy intelligent management circuit controls the energy collection of the radioisotope battery, the charging and discharging of the lithium battery and the switch of the acoustoelectric transducer, effectively collects and utilizes weak electric energy of the radioisotope battery to charge the lithium battery, and also solves the problem of large instantaneous power required by the acoustoelectric transducer to work. The acoustoelectric transducer comprises a signal receiver and a signal transmitter, the signal receiver converts external specific signals into electric signals, and the signal transmitter transmits acoustic signals containing position information to the outside subsequently, so that an accurate positioning and navigation function is provided for an unmanned underwater vehicle sailing at long distance, and the seabed is prevented from being lost due to position loss.

Description

Fixed beacon and navigation device for deep seabed
Technical Field
The invention relates to the field of deep and far seabed sensor network nodes, in particular to a deep and far seabed fixed beacon and navigation device, which realize the function of providing accurate positioning and navigation for an underwater unmanned vehicle.
Background
The unmanned underwater vehicle is an unmanned intelligent weapon equipment platform which can be used for reconnaissance, remote control thunder hunting, battle and other tasks and can autonomously navigate underwater, and the unmanned underwater vehicle can be used for detecting net exploration, underwater battle field information preparation, underwater battle field presetting, battle field monitoring analysis, battle field sensing propagation, underwater acoustic countermeasure and the like, and plays an important role in future underwater battles. Satellite positioning systems such as a global positioning system and a Beidou satellite navigation system can realize accurate positioning of land and sea surface equipment through electromagnetic waves. However, seawater has a strong absorption effect on electromagnetic waves, and these systems cannot be used for positioning of underwater unmanned vehicles.
To avoid losing the sea floor by navigating too far and losing the location, deep open sea beacons and navigation stations need to be built. However, the deep sea field has the characteristics of unattended operation, inconvenient maintenance, harsh environment and the like, so that equipment applied to the fields, such as sensing monitoring, communication, navigation, early warning and the like, has long-term requirements of maintenance free, small volume, high integration and the like on energy. The sunlight cannot spread to reach hundreds of meters underwater, and the application requirements cannot be met; ocean energy, temperature difference energy and the like are very weak in hundreds of meters under water, are difficult to obtain and cannot meet the application requirements; the chemical fuel energy needs to be maintained and replaced regularly, and application requirements cannot be met, so that the power supply requirements of deep sea beacons and navigation equipment cannot be met by conventional energy methods such as solar energy, chemical fuel energy, ocean energy and temperature difference energy due to the problems of short service life, maintenance requirements, environmental influence, large volume and weight and the like.
Disclosure of Invention
The invention aims to: the device overcomes the defects of the prior art, and provides a fixed beacon and a navigation device for the deep and far seabed, so as to solve the problem that the position signal is lost when an underwater unmanned carrier executes a task on the seabed, and the position signal is lost on the seabed.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a deep seafloor fixed beacon and navigation device comprising: a radioactive isotope battery, a cable, a micro-energy intelligent management circuit, a lithium battery and an acoustoelectric transducer;
the radioactive isotope battery, the micro-energy intelligent management circuit, the lithium battery and the signal transmitter are connected through cables, and the radioactive isotope battery is used as an energy source to charge the lithium battery;
the micro-energy intelligent management circuit controls the energy collection of the radioactive isotope battery, the charging and discharging of the lithium battery and the switching of the acoustoelectric transducer; the acoustoelectric transducer receives positioning demand information sent by the passing unmanned underwater vehicle, and feeds back position information through sound waves to provide position information for the unmanned underwater vehicle.
The system further comprises a deep sea sealing chamber, wherein the radioactive isotope battery, the cable, the micro-energy intelligent management circuit, the lithium battery and the acoustoelectric transducer are all arranged in the deep sea sealing chamber and sealed; the acoustoelectric transducer comprises a signal transmitter and a signal receiver; the signal transmitter and the signal receiver extend out of a preformed hole in the side wall of the deep sea sealing cavity and are used for receiving and transmitting signals, and the signal transmitter and the signal receiver are sealed with the deep sea sealing cavity.
Furthermore, when a positioning demand signal sent by an underwater unmanned vehicle needing to be positioned nearby is received, the acoustoelectric transducer works and feeds back position information through sound waves.
Further, the radioactive isotope battery comprises one or more isotope batteries based on a radio volt effect, a radio photovoltaic effect and a semiconductor temperature difference effect; radioisotope batteries employ radiation-resistant shielding measures.
Furthermore, the deep sea sealed cavity is a sealed cavity made of corrosion-resistant metal or alloy, and the inside of the cavity is prevented from being corroded by seawater.
Furthermore, the micro-energy intelligent management circuit comprises a micro-energy collector, a signal detection unit, a maximum power point tracking control unit, a charging management unit, a discharging management controller and a boost converter;
the micro energy collector is used for collecting electric energy output by the radioisotope battery; the signal detection unit monitors signals such as current, voltage and temperature of the radioisotope battery and the lithium battery in real time to judge the working mode of the system;
the maximum power point tracking control unit regulates and controls the electric energy collected by the micro-energy collector according to the signal of the signal detection unit, so that the radioisotope battery is regulated to be in a maximum power state; the charging management unit charges the lithium battery by using the regulated and controlled electric energy according to the signal of the signal detection unit; the discharge management controller controls the system to work in a silent mode or a working mode according to the signal of the signal detection unit; and the boost converter converts the power supply bus into energy required by the power supply of the acoustoelectric transducer according to the requirement of the rear-end load.
Further, the silent mode refers to: the state when deep and far seabed fixed beacon and navigation device do not receive the location demand signal, the radioisotope battery charges for the lithium cell this moment, if the electric quantity of lithium cell is full of, the electric energy that the radioisotope battery produced then dissipates through discharging the electric charge management controller.
The working mode is as follows: and after the deep and far seabed fixed beacon and the navigation device receive the positioning demand signal, the lithium battery supplies power to the acoustoelectric transducer, and a signal transmitter of the acoustoelectric transducer sends out a special signal in an ultrasonic form according to an activation instruction.
Furthermore, the lithium battery is regulated and controlled by negative active lithium, an external lithium source is stored in the negative electrode in advance, so that the negative lithium is excessive, and the negative electrode lithium supplement is realized; the conductivity of the positive electrode is improved by adopting the conductive agent, and the rate capability of the battery is improved; the negative electrode is made of graphite material, and no additional conductive agent is added.
Furthermore, the acoustoelectric transducer adopts an overflow circular tube transducer to realize half-space emission; the circular ring of the overflow circular tube transducer is manufactured in an inlaying mode, so that the output voltage of a power amplifier is reduced; the acoustoelectric transducer signal propagation distance is greater than 1000m.
Further, when the underwater unmanned vehicle submerges to the position near a certain deep seabed fixed beacon and a navigation device, a positioning demand signal is sent out, and the positioning demand signal is an ultrasonic signal;
the signal receiver of the acoustoelectric transducer comprises a preamplifier, a phase-locked amplifier and a power amplifier, converts the received ultrasonic signals into electric signals, compiles the electric signals into an activation instruction of a signal transmitter, and triggers the charging management unit to control and activate the lithium battery to supply power for the acoustoelectric transducer in short time and high power; a signal transmitter of the acoustoelectric transducer converts information including the positions of the deep and far seabed fixed beacon and the navigation device into acoustic signals through electric signals according to an activation instruction, and sends the acoustic signals in an ultrasonic form;
and the external unmanned underwater vehicle receives the relevant information, amplifies and transmits the signal to the measuring circuit, records or displays the signal, and obtains the position of the external unmanned underwater vehicle under water by analyzing the signal.
Compared with the prior art, the invention has the following beneficial effects:
(1) The radioactive isotope battery provided by the invention converts the radiation energy of radioactive isotopes into electric energy through a radiation volt effect/radiation photovoltaic effect or a semiconductor thermoelectric conversion effect and the like;
(2) According to the invention, the micro-energy intelligent management circuit is used for controlling the energy collection of the radioactive isotope battery, the charging and discharging of the long-life lithium battery and the switching of the acoustoelectric transducer, so that on one hand, the weak electric energy of the radioactive isotope battery is effectively collected and utilized to charge the lithium battery, and on the other hand, the problem of large instantaneous power required by the acoustoelectric transducer during working is solved.
(3) The acoustoelectric transducer provided by the invention comprises a signal receiver and a signal transmitter, wherein the signal receiver converts an external specific signal into an electric signal, the electric signal is converted into an activation instruction of the signal transmitter, and then the signal transmitter transmits an acoustic signal containing position information to the outside, so that an accurate positioning and navigation function is provided for an unmanned underwater vehicle sailing for a long distance, and the seabed is prevented from being lost due to position loss.
Drawings
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a view showing the structure of the apparatus of the present invention;
FIG. 2 is a schematic diagram of a micro-energy intelligent management circuit;
wherein: 1. a radioisotope battery; 2. a cable; 3. a deep sea sealed chamber; 4. a micro-energy intelligent management circuit; 5. a long-life lithium battery; 6. an acoustoelectric transducer; 7. a signal transmitter; 8. a signal receiver; 9. unmanned underwater vehicle.
Detailed Description
The present invention provides a deep seabed fixed beacon and navigation device, which is further described in detail with reference to the accompanying drawings and the specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
The radioactive isotope battery has the characteristics of long service life, no environmental influence, no maintenance and the like, and can become an ideal power supply for sensor monitoring equipment. The isotope battery has several conversion mechanisms of temperature difference, direct charging, radiation and photovoltaic, etc., according to different conversion mechanisms, different radioactive isotopes, shielding measures and structural designs are selected, the output power can reach uW-W level, and the isotope battery is easy to miniaturize and integrate, and is a relatively ideal energy form for sensing monitoring, communication, navigation and other equipment in the field. The energy system combining the radioactive isotope battery and the long-life lithium battery can provide an autonomous integrated power supply integrating energy acquisition, electric energy conversion and storage, well solves the problem of energy supply of deep sea beacons and navigation equipment, and has incomparable advantages compared with the traditional power supply.
As shown in fig. 1, the present invention provides a deep seabed fixed beacon and navigation apparatus, comprising: the system comprises a radioisotope battery 1, a cable 2, a micro-energy intelligent management circuit 4, a lithium battery 5 and an acoustoelectric transducer 6;
the radioactive isotope battery 1, the micro-energy intelligent management circuit 4, the lithium battery 5 and the signal transmitter 7 are connected through the cable 2, and the radioactive isotope battery 1 is used as an energy source to charge the lithium battery 5;
the micro-energy intelligent management circuit 4 controls the energy collection of the radioisotope battery 1, the charging and discharging of the lithium battery 5 and the switching of the acoustoelectric transducer 6; the acoustoelectric transducer 6 receives positioning demand information sent by the passing unmanned underwater vehicle 9, and feeds back position information through sound waves to provide position information for the unmanned underwater vehicle 9.
Furthermore, the device also comprises a deep sea sealing chamber 3, wherein the radioactive isotope battery 1, the cable 2, the micro-energy intelligent management circuit 4, the lithium battery 5 and the acoustoelectric transducer 6 are all arranged in the deep sea sealing chamber 3 and realize sealing; the acoustic-electric transducer 6 comprises a signal transmitter 7 and a signal receiver 8; the signal transmitter 7 and the signal receiver 8 protrude out of the preformed hole on the side wall of the deep sea sealed chamber 3 and are used for receiving and transmitting signals, and the signal transmitter 7 and the signal receiver 8 are sealed with the deep sea sealed chamber 3.
Preferably, the acoustoelectric transducer works only when receiving a positioning demand signal sent by the underwater unmanned vehicle 9 needing to be positioned nearby, and position information is fed back through sound waves. Therefore, the power consumption of the system can be reduced, the working time of the system is prolonged, and the system has potential of wide application in practice.
Preferably, the radioisotope battery 1 comprises one or more isotope batteries based on a photovoltaic effect, a photovoltaic effect and a semiconductor temperature difference effect; the radioisotope battery 1 takes radiation-resistant shielding measures.
Preferably, the deep sea sealed cavity 3 is a sealed cavity made of corrosion-resistant metal or alloy, and the inside of the cavity is protected from seawater erosion.
As shown in fig. 2, the micro-energy intelligent management circuit 4 of the present invention includes a micro-energy collector, a signal detection unit, a maximum power point tracking control unit, a charging management unit, a discharging management controller, and a boost converter;
the micro energy collector is used for collecting the electric energy output by the radioisotope battery 1; the signal detection unit monitors signals such as current, voltage and temperature of the radioisotope battery 1 and the lithium battery 5 in real time to judge the working mode of the system;
a maximum power point tracking control unit (MPPT control unit) adjusts the radioisotope battery 1 to be in a maximum power state according to a signal of the signal detection unit; the charging management unit controls the charging process of the lithium battery 5 according to the signal of the signal detection unit to prevent overcharging; the discharge management controller controls the system to work in a silent mode or a working mode according to the signal of the signal detection unit; and the boost converter converts the power supply bus into energy required by the power supply of the acoustoelectric transducer according to the requirement of the rear-end load.
The silent mode refers to: the state when the deep and far seabed fixed beacon and the navigation device do not receive the positioning demand signal, the radioactive isotope battery 1 charges the lithium battery 5, and if the lithium battery 5 is fully charged, the electric energy generated by the radioactive isotope battery 1 is dissipated through the discharge management controller.
The working mode is as follows: and after the beacon and the navigation device are fixed on the deep and far seabed and receive the positioning demand signal, the lithium battery 5 supplies power to the acoustoelectric transducer 6, and the signal transmitter 7 of the acoustoelectric transducer 6 transmits a special signal in an ultrasonic form according to an activation instruction.
Preferably, the service life of the long-life lithium battery is more than or equal to 10 years. The lithium battery 5 stores an external lithium source in the negative electrode in advance through regulation and control of negative active lithium so that the negative lithium is excessive, and the negative electrode lithium supplement is realized; the conductivity of the positive electrode is improved by adopting the conductive agent, and the rate capability of the battery is improved; the negative electrode is made of graphite material, and no additional conductive agent is added.
Preferably, the acoustic-electric transducer 6 adopts an overflow circular tube transducer to realize half-space emission; the circular ring of the overflow circular tube transducer is manufactured in an inlaying mode, so that the output voltage of a power amplifier is reduced; the acoustoelectric transducer 6 has a signal propagation distance greater than 1000m.
Preferably, when the underwater unmanned vehicle 9 submerges to a position near a certain deep seabed fixed beacon and a navigation device, a positioning demand signal is sent out, and the positioning demand signal is an ultrasonic signal;
the signal receiver 8 of the acoustoelectric transducer comprises a preamplifier, a phase-locked amplifier and a power amplifier, the signal receiver 8 converts the received ultrasonic signals into electric signals and compiles the electric signals into an activation instruction of the signal transmitter 7, and simultaneously triggers the charging management unit to control and activate the lithium battery 5 to supply power for the acoustoelectric transducer 6 in a short time and in a high power; a signal transmitter 7 of the acoustoelectric transducer 6 converts information including the positions of the deep and far seabed fixed beacon and the navigation device into an acoustic signal through an electric signal according to an activation instruction, and sends the acoustic signal in an ultrasonic form;
the external unmanned underwater vehicle 9 receives the relevant information, amplifies and transmits the signal to the measuring circuit, records or displays the signal, and obtains the underwater position of the vehicle by analyzing the signal.
Example (b):
firstly, the movable sea area of the unmanned underwater vehicle is divided into positions, the distribution of the deep and far seabed fixed beacons and the navigation device is planned, and under the action of the acoustoelectric transducer 6, the signal emitter 7 of the deep and far seabed fixed beacons and the navigation device can emit specific sound wave signals which carry the positions corresponding to the far seabed fixed beacons and the navigation device.
When the underwater unmanned vehicle 9 submerges to the vicinity of a certain deep seabed fixed beacon and navigation device, a positioning demand signal is sent. A signal receiver 8 (comprising a preamplifier, a phase-locked amplifier and a power amplifier) of the acoustoelectric transducer converts a received ultrasonic signal into an electric signal and compiles the electric signal into an activation instruction of a signal transmitter, and simultaneously, a logic controller is triggered to control and activate the long-life lithium battery 5 to supply power for the acoustoelectric transducer 6 in a short time and in a large power; the signal transmitter 7 of the acoustoelectric transducer 6 converts the information including the positions of the deep and deep seabed fixing beacon and the navigation device into an acoustic signal through an electric signal according to an activation instruction, and sends the acoustic signal in an ultrasonic form. The external unmanned underwater vehicle 9 receives the relevant information, amplifies and transmits the signal to the measuring circuit, can record or display the result, and can obtain the position of the vehicle under water by analyzing the digital signal.
The connection of the micro-energy intelligent management circuit is shown in figure 2,
the radioactive isotope battery 1 can continuously provide weak electric energy output for 24 hours, and the micro-energy collector collects the electric energy output by the radioactive isotope battery 1 and provides continuous charging electric energy for the fixed beacon and the navigation device at the deep seabed; the signal detection unit monitors signals such as current, voltage and temperature of the radioisotope battery 1 and the long-life lithium battery 5 in real time to judge the working mode of the system; the MPPT control unit can identify and control different irradiation intensities and temperatures, and ensures that the radioisotope battery 1 outputs the maximum power in real time; the charging management and the discharging management control play a role in protection, and the phenomena of overvoltage, overcurrent, undercharge, overcharge and the like are prevented by controlling the voltage and the current of the storage battery; when the deep and far seabed fixed beacon and the navigation device receive an external positioning demand signal, the boost converter converts the voltage into energy required by the power supply of the acoustoelectric transducer 6 according to the demand of a rear end load, thereby providing information such as position and the like for the external underwater unmanned vehicle 9.
The principle and the embodiment of the present invention are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. A deep seafloor fixed beacon and navigation device, comprising: the system comprises a radioisotope battery (1), a cable (2), a micro-energy intelligent management circuit (4), a lithium battery (5) and an acoustoelectric transducer (6);
the radioactive isotope battery (1), the micro-energy intelligent management circuit (4), the lithium battery (5) and the signal transmitter (7) are connected through the cable (2), and the radioactive isotope battery (1) is used as an energy source to charge the lithium battery (5);
the micro-energy intelligent management circuit (4) controls the energy collection of the radioisotope battery (1), the charging and discharging of the lithium battery (5) and the switching of the acoustoelectric transducer (6); the acoustoelectric transducer (6) receives positioning demand information sent by the passing unmanned underwater vehicle (9), and feeds back position information through sound waves to provide the position information for the unmanned underwater vehicle (9).
2. The deep seafloor fixed beacon and navigation device of claim 1, wherein: the system is characterized by further comprising a deep sea sealing chamber (3), wherein the radioactive isotope battery (1), the cable (2), the micro-energy intelligent management circuit (4), the lithium battery (5) and the acoustoelectric transducer (6) are all arranged in the deep sea sealing chamber (3) and sealed; the acoustoelectric transducer (6) comprises a signal transmitter (7) and a signal receiver (8); the signal transmitter (7) and the signal receiver (8) extend out of a preformed hole on the side wall of the deep sea sealed chamber (3) and are used for receiving and transmitting signals, and the signal transmitter (7) and the signal receiver (8) are sealed with the deep sea sealed chamber (3).
3. A deep seafloor fixed beacon and navigation device as claimed in claim 1 or 2, wherein: when a positioning demand signal sent by an underwater unmanned vehicle (9) needing to be positioned nearby is received, the acoustoelectric transducer works and feeds back position information through sound waves.
4. The deep seafloor fixed beacon and navigation device of claim 1 or 2, wherein: the radioactive isotope battery (1) comprises one or more isotope batteries based on a radiation volt effect, a radiation photovoltaic effect and a semiconductor temperature difference effect; the radioisotope battery (1) takes radiation-resistant shielding measures.
5. The deep seafloor fixed beacon and navigation device of claim 2, wherein: the deep sea sealed cavity (3) is a sealed cavity made of corrosion-resistant metal or alloy, and the inside of the cavity is guaranteed not to be corroded by seawater.
6. A deep seafloor fixed beacon and navigation device as claimed in claim 1 or 2, wherein: the micro-energy intelligent management circuit (4) comprises a micro-energy collector, a signal detection unit, a maximum power point tracking control unit, a charging management unit, a discharging management controller and a boost converter;
the micro energy collector is used for collecting electric energy output by the radioisotope battery (1); the signal detection unit monitors signals such as current, voltage and temperature of the radioisotope battery (1) and the lithium battery (5) in real time to judge the working mode of the system;
the maximum power point tracking control unit regulates and controls the electric energy collected by the micro-energy collector according to the signal of the signal detection unit, so that the radioisotope battery (1) is regulated to be in a maximum power state; the charging management unit charges the lithium battery (5) by using the regulated and controlled electric energy according to the signal of the signal detection unit; the discharge management controller controls the system to work in a silent mode or a working mode according to the signal of the signal detection unit; and the boost converter converts the power supply bus into energy required by the power supply of the acoustoelectric transducer according to the requirement of the rear-end load.
7. The deep seafloor fixed beacon and navigation device of claim 6, wherein: the silent mode refers to: when the deep and far seabed fixed beacon and the navigation device do not receive the positioning demand signal, the radioactive isotope battery (1) charges the lithium battery (5), and if the lithium battery (5) is fully charged, the electric energy generated by the radioactive isotope battery (1) is dissipated through the discharge management controller;
the working mode is as follows: and after the beacon and the navigation device are fixed on the deep and far seabed and receive the positioning demand signal, the lithium battery (5) supplies power to the acoustoelectric transducer (6), and the signal transmitter (7) of the acoustoelectric transducer (6) sends out the signal in an ultrasonic mode according to the activation instruction.
8. The deep seafloor fixed beacon and navigation device of claim 1 or 2, wherein: the lithium battery (5) is regulated and controlled by negative active lithium, an external lithium source is stored in the negative electrode in advance, so that the negative lithium is excessive, and the negative lithium supplement is realized; the conductivity of the positive electrode is improved by adopting the conductive agent, and the rate capability of the battery is improved; the negative electrode is made of graphite material, and no additional conductive agent is added.
9. The deep seafloor fixed beacon and navigation device of claim 1 or 2, wherein: the acoustoelectric transducer (6) adopts an overflow circular tube transducer to realize half-space emission; the circular ring of the overflow circular tube transducer is manufactured in an inlaying mode, so that the output voltage of a power amplifier is reduced; the signal propagation distance of the acoustoelectric transducer (6) is more than 1000m.
10. The deep seafloor fixed beacon and navigation device of claim 2, wherein: when an underwater unmanned carrier (9) submerges to the position near a certain deep seabed fixed beacon and a navigation device, a positioning demand signal is sent out and is an ultrasonic signal;
the signal receiver (8) of the acoustoelectric transducer comprises a preamplifier, a phase-locked amplifier and a power amplifier, the signal receiver (8) converts the received ultrasonic signals into electric signals and compiles the electric signals into an activation instruction of the signal transmitter (7), and simultaneously triggers the charging management unit to control the activation of the lithium battery (5) to supply power for the acoustoelectric transducer (6) in a short time and in a high power; a signal transmitter (7) of the acoustoelectric transducer (6) converts information including the positions of the deep and far seabed fixed beacon and the navigation device into an acoustic signal through an electric signal according to an activation instruction, and sends the acoustic signal in an ultrasonic form;
the external unmanned underwater vehicle (9) receives the relevant information, amplifies and transmits the signal to the measuring circuit, records or displays the signal, and obtains the position of the vehicle under water by analyzing the signal.
CN202210674251.2A 2022-06-14 2022-06-14 Fixed beacon and navigation device for deep seabed Pending CN115201745A (en)

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CN202210674251.2A CN115201745A (en) 2022-06-14 2022-06-14 Fixed beacon and navigation device for deep seabed

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CN202210674251.2A CN115201745A (en) 2022-06-14 2022-06-14 Fixed beacon and navigation device for deep seabed

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116470602A (en) * 2023-03-14 2023-07-21 中子高新技术产业发展(重庆)有限公司 Stable power isotope battery coupled with secondary capacitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116470602A (en) * 2023-03-14 2023-07-21 中子高新技术产业发展(重庆)有限公司 Stable power isotope battery coupled with secondary capacitor
CN116470602B (en) * 2023-03-14 2023-11-28 中子高新技术产业发展(重庆)有限公司 Stable power isotope battery coupled with secondary capacitor

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