CN210803705U - Active and passive underwater sound position indicating beacon system - Google Patents

Abstract

The utility model discloses an active passive underwater sound registration beacon system, including the withstand voltage casing of underwater sound registration beacon and the integrative transducer of receiving and dispatching, the inside circuit module that is equipped with of withstand voltage casing of underwater sound registration beacon, this circuit module include power conversion module, power amplifier module and decoding module, main control system's output with power conversion module connects, decoding module and main control system interconnection to and emergent two-way voice module, its with decoding module interconnection is convenient for under emergency, realizes the two-way speech communication in water face end rescue strength and the ship. The utility model discloses a beacon adopts the active and passive underwater acoustic level beacon, and the underwater acoustic level beacon changes over to the speech communication mode in case after detecting the speech communication request instruction that rescue strength sonar etc. sent during emergency, realizes rescue strength and the underwater acoustic speech communication who treats the rescuers.

Description

Active and passive underwater sound position indicating beacon system

Technical Field

The utility model belongs to the technical field of the underwater acoustic communication, more specifically relates to an initiative and passive underwater acoustic position indicating beacon system.

Background

When the submarine performs tasks independently, the submarine is isolated from the outside for a long time, and needs to communicate with the shore in an emergency, so that the submarine needs to float upwards to extend an antenna out of the water surface, and the risk of exposing the position of the submarine is increased; to this end, a method of releasing the underwater acoustic communication buoy by the submarine as a communication node between the submarine and the radio network may be employed to circumvent the risk.

The traditional lifesaving method separates the beacon from the hull through the beacon release device to transmit signals, and carries out information interaction with a shore-based or seawater communication device to realize emergency rescue. Patent document CN207889941U discloses a release device for an underwater acoustic communication buoy, which includes a release support structure, and a reduction motor, a motor support rod, a coupling, a pressure plate, a release shaft, a ball bearing, a needle bearing, a lead rod and a sealing structure located therein. The top end of a release supporting structure of the device is connected with the bottom of the underwater acoustic communication buoy, and the bottom end of the release supporting structure is rigidly connected with a device to be released through a release connecting end and a lead rod of a release shaft. When the gear motor receives the release signal, the gear motor driving shaft rotates to drive the release shaft to rotate, the release connecting end of the release shaft rotates to release the required release device, the lead rod prevents the required release device from rotating, and the required release device is released to the external environment from the underwater acoustic communication buoy.

The device provides the possibility for the underwater acoustic communication buoy to be used in environments where rigid connection and release to the desired release device is required. However, there are some disadvantages or shortcomings with such an underwater acoustic beacon release device: (1) in an emergency situation, the beacon release device needs to be operated to release the buoy and then transmit a signal out, so that the time consumption is long, and the efficiency is low; (2) the sending mode of the distress signal is difficult to realize the bidirectional transmission of the signal, is inconvenient to communicate with the external rescue signal, and is not beneficial to realizing the distress of the submarine in time under the emergency condition.

SUMMERY OF THE UTILITY MODEL

To the above defect of prior art or improve the demand, the utility model provides an initiative and passive underwater sound registration beacon system, realize the two-way conversion of signal of telecommunication and acoustic signal through the integrative transducer of control host computer control receiving and dispatching, when taking place the outside rescue strength of emergency condition, carry out initiative or passive underwater sound registration by this beacon, reach at surface of water rescue strength and convert two-way voice communication function into through outside activation signal, realize the two-way voice communication in water face end rescue strength and the ship, life-saving efficiency and possibility can be improved greatly, the security of scuba divers such as submarine has been improved.

In order to achieve the above object, the present invention provides an active and passive underwater acoustic position indicating beacon system, the beacon comprising:

the underwater sound position indicating beacon energy-saving device comprises an underwater sound position indicating beacon pressure-resistant shell and a receiving and transmitting integrated energy converter, wherein one end of the underwater sound position indicating beacon pressure-resistant shell is fixedly connected with the pressure-resistant shell through a base, the other end of the underwater sound position indicating beacon pressure-resistant shell is connected with the receiving and transmitting integrated energy converter through a watertight connector, and the receiving and transmitting integrated energy converter is detachably connected with a light shell through a conformal detachable plate;

the underwater sound position indication beacon pressure-resistant shell is internally provided with a circuit module, the circuit module comprises a power supply conversion module, a power amplifier module and a decoding module, the output end of the control host is connected with the power supply conversion module, the control host can conveniently transmit an autonomous sounding signal, a self-detection sounding signal and a voice sending starting signal to the power supply conversion module, and the decoding module is interconnected with the control host and is used for realizing the modulation and demodulation of the autonomous sounding signal, the self-detection sounding signal and the voice signal and the switching of each state of the autonomous sounding, the self-detection sounding, the dormancy and the voice; one end of the power amplification module is connected with the decoding module, and the other end of the power amplification module is connected with the receiving and transmitting integrated transducer so as to amplify signals and realize bidirectional conversion of electric signals and acoustic signals through the receiving and transmitting integrated transducer; and

and the emergency bidirectional voice module is interconnected with the decoding module, so that the bidirectional voice communication between the water surface side rescue force and the inside of the boat can be realized under the emergency condition.

Furthermore, the output end of the decoding module is connected with the power amplification module and is used for transmitting the low-power underwater sound indicating position/voice/self-checking electric signal to the power amplification module;

the output end of the power amplifier module is connected with the receiving and transmitting integrated transducer so as to transmit the high-power underwater sound indicating position and the high-power voice analog electric signal to the receiving and transmitting integrated transducer.

Further, the system comprises an underwater sound locating device and an underwater sound communication device, and the receiving and transmitting integrated transducer is respectively interconnected with the underwater sound locating device and the underwater sound communication device.

Furthermore, the power amplifier module comprises two units, wherein the first unit is a modulator which performs PWM modulation on the audio signal to form a digital signal,

the second unit is a D-type power amplifier to convert the PWM signal into a high-voltage signal and output the high-voltage signal to the receiving and transmitting integrated transducer.

Furthermore, the system comprises an autonomous energy module and a boat power supply which are respectively connected with the power supply conversion module, wherein the output end of the power supply conversion module is connected with the input end of the emergency bidirectional voice module, so that the power supply conversion module can supply power to the emergency bidirectional voice module through DCV or DCV electric energy on the autonomous energy module or the boat power supply DCV.

Furthermore, an underwater sound position indication beacon shell sealing head is arranged at the top of the pressure-resistant shell of the underwater sound position indication beacon and is fixedly connected through a screw;

a first O-shaped sealing ring is arranged at the connecting corner of the shell seal head of the underwater sound position indicating beacon and the pressure-resistant shell of the underwater sound position indicating beacon;

and a second O-shaped sealing ring is arranged on the butt joint surface of the underwater sound position indication beacon shell seal head and the underwater sound position indication beacon pressure-resistant shell.

Furthermore, a second watertight connector is arranged at the top of one side of the pressure-resistant shell of the underwater sound location beacon, and a second protective cover is arranged on the outer side of the second watertight connector;

the pressure-resistant shell of the underwater sound position-indicating beacon adopts a titanium alloy cylindrical barrel pressure-resistant structure and is integrally machined.

Furthermore, the autonomous energy module comprises an autonomous energy module pressure-resistant shell and an autonomous energy module shell end socket arranged at the top of the autonomous energy module pressure-resistant shell, the autonomous energy module pressure-resistant shell and the autonomous energy module shell end socket are fixedly connected through bolts, and water sealing is realized through a third O-shaped sealing ring and a fourth O-shaped sealing ring;

a vibration damping mechanism is arranged at the bottom of the inner side of the pressure-resistant shell of the autonomous energy module;

the bottom of the vibration reduction mechanism is of a hemispherical structure and is matched with the inner wall structure of the pressure-resistant shell of the autonomous energy module, and the top of the vibration reduction mechanism is provided with a vibration reduction plate.

Furthermore, a battery pack and an autonomous energy module main control board are arranged inside the autonomous energy module pressure-resistant shell.

Furthermore, a third watertight connector is arranged on one side of the pressure-resistant shell of the autonomous energy module, and a third protective cover is arranged on the outer side of the third watertight connector.

Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:

1. the utility model discloses a beacon realizes the two-way conversion of signal of telecommunication and acoustic signal through the integrative transducer of control host computer control receiving and dispatching, when taking place the outside rescue strength of emergency situation, carries out initiative or passive underwater sound by this beacon and shows the position, arrives at surface of water rescue strength and converts two-way voice communication function into through outside activation signal conversion, realizes the two-way voice communication in surface of water end rescue strength and the ship, can improve lifesaving efficiency and possibility greatly, has improved the security of divers such as submarine.

2. The utility model discloses a beacon, after the underwater sound registration beacon detected the self-checking control signal of servo control host computer, got into function self-checking mode. The automatic control unit generates an extremely short pulse sound source electric signal, the signal is amplified by a power amplification module through a low-power signal, and a self-detection sound source is sent out through the transducer.

3. After the beacon, the underwater sound position indicating host and the transducer of the utility model autonomously sound and time for X days, the equipment automatically switches into a response sound production value standby mode; if an instruction sent by the rescue force sonar is detected during the autonomous sounding of the device, the device automatically shifts to a response sounding value standby mode. And under the response sounding value standby mode, the underwater sound position indicating host and the transducer are in a normal state and are silent.

4. The utility model discloses a beacon, the start-up of underwater sound position indicating beacon is controlled by the start signal or the buoy after the release of the start signal of carrying on platform control host computer after the accident touches water short circuit signal. When the starting signal is detected, the underwater sound indicating beacon starts to sound autonomously.

5. The utility model discloses a beacon adopts two independent receiving and dispatching integrative transducers to be to piece together and inlay piezoceramics ring, puts into the rubber sack, and the inside oil charge of rubber sack is furnished with pressure balance device, can adopt range upon range of or two kinds of arrangement mode side by side, can compromise initiative sound production and show each frequency point performance of position response frequency section.

6. The utility model discloses a beacon, the withstand voltage casing of underwater sound position-indicating beacon adopts the cylindric barrel pressure-resistant structure of titanium alloy, and integration machine addition type does not have welded structure, and annular base is as strengthening the rib simultaneously, trompil installation watertight connector on top end cover and the drum flange, design degree of depth 7000 meters, dull and stereotyped head flange mounting battery pack, and damping material is filled in bottom and lateral wall clearance.

7. The utility model discloses a beacon, the withstand voltage casing one side of the underwater sound position indicating beacon is located to autonomic energy module to realize the electricity through first watertight plug connector and circuit module and be connected. The underwater sound position indicating beacon is supplied with power by the pressure-resistant autonomous energy module, and can provide Y-month active sounding and Z-month response standby sounding electric quantity for the underwater sound position indicating beacon.

8. The utility model discloses beacon, the withstand voltage casing of autonomic energy adopt titanium alloy withstand voltage structure, and integration machine addition type does not have welded structure, and annular base is as strengthening the rib simultaneously, design degree of depth 7000 meters, head flange mounting battery pack, and damping material is filled in bottom and lateral wall clearance, realizes the damping to the group battery, avoids the group battery to damage because of equipment vibration.

Drawings

Fig. 1 is a schematic diagram of a part of an active and passive underwater acoustic position-indicating beacon according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an active and passive underwater acoustic position-indicating beacon according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a pressure-resistant housing of an active and passive underwater acoustic location beacon according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an autonomous energy module according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of an autonomous energy module according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a communication system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a power amplifier module according to an embodiment of the present invention;

fig. 8 is a schematic view of the working flow of the emergency bidirectional voice module according to the embodiment of the present invention;

fig. 9 is a schematic view of a working flow of an active and passive underwater acoustic position-indicating beacon according to an embodiment of the present invention.

In all the figures, the same reference numerals denote the same features, in particular: 1-receiving and transmitting integrated transducer, 2-watertight connector, 3-underwater sound location indicating beacon shell end socket, 4-underwater sound location indicating beacon pressure-resistant shell, 5-circuit module, 6-autonomous energy module, 7-first watertight connector clip, 8-emergency bidirectional voice module, 9-underwater sound location indicating host, 10-first O-shaped sealing ring, 11-second O-shaped sealing ring, 12-second watertight connector clip, 13-second protective cover, 14-first protective cover, 15-control host, 16-underwater sound location finding device and 17-underwater sound communication device;

501-power conversion module, 502-power amplifier module, 503-decoding module, 5021-PWM modulation and 5022-D power amplifier;

601-an autonomous energy module shell end socket, 602-a vibration reduction plate, 603-an autonomous energy module pressure-resistant shell, 604-a vibration reduction mechanism, 605-a battery pack, 606-a third watertight connector, 607-a third protective cover, 608-a third O-shaped sealing ring, 609-a fourth O-shaped sealing ring and 610-an autonomous energy module main control plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

In order to solve the problem that the time consuming exists in the release and the receiving and dispatching distress signal in-process of traditional underwater acoustic communication buoy, buoy storage and release operation are inconvenient and equipment trouble scheduling, as shown in fig. 1-9, the embodiment of the utility model provides an active and passive underwater acoustic position indicating beacon system, this beacon system locate between submarine pressure-resistant casing and the light shell body, and base and submarine pressure-resistant casing fixed connection are passed through to one end, the other end pass through the removable board of arch with the connection can be dismantled in the realization of light shell body. Different from the traditional method of releasing the beacon to send the distress signal, the active and passive underwater sound position indicating beacon is adopted, the receiving and sending integrated transducer is controlled by the control host to realize the bidirectional conversion of the electric signal and the sound signal, the buoy is not required to be released in case of emergency, the distress signal is directly sent at the first time, the precious lifesaving time is won, the lifesaving efficiency and possibility can be greatly improved, and the safety of submersibles such as submarines and the like is improved.

Specifically, as shown in fig. 1, the underwater sound location beacon system mainly includes a transceiver-integrated transducer 1, a circuit module 5, an emergency bidirectional speech module 8, an underwater sound location beacon pressure-resistant housing 4, and an autonomous energy source module 6. The emergency bidirectional voice module 8 is connected with the circuit module 2, so that bidirectional conversion of electric signals and acoustic signals is realized through the cooperation of the circuit module 5 and the receiving and transmitting integrated transducer 1 under emergency conditions, as shown in figure 2, the bottom of the underwater sound location indicating beacon pressure-resistant shell 4 is connected with the pressure-resistant shell of the submarine through a base, the other end of the water-resistant shell is connected with the receiving and transmitting integrated transducer 1 through a watertight connector and then is connected with a light shell, the light shell is made of sound-transmitting materials, and the receiving and transmitting integrated transducer 1 is convenient to receive and transmit the acoustic signals. The underwater sound position indicating beacon adopts an embedded design and is linearly fused with the appearance of the carrying platform, so that the linear shape of the carrying platform is not influenced. The receiving and transmitting integrated transducer 1 is mainly used for realizing electric/acoustic conversion, namely converting a rescue force water surface locating instruction acoustic signal or a communication acoustic signal into an electric signal; converting the underwater acoustic beacon indication bit electrical signal or the communication electrical signal into an acoustic signal. The transducer is determined to be in a receiving and transmitting integrated mode according to international universal search and rescue frequency requirements, requirements of voice communication functions on the minimum bandwidth of the transducer, requirements of beacon working depth on the pressure resistance of the transducer, requirements of overall installation and use on the directivity and physical characteristics of the transducer, requirements of acting distance on sound power, requirements of a power amplifier and a decoding circuit on the transmitting voltage response and receiving sensitivity of the transducer and the like. For the transducer capable of working under deep sea conditions, in order to be able to bear higher hydrostatic pressure, common transducer types include oil-filled type, overflow type, pressure compensation structure and the like. The oil-filled ring transducer is filled with filling oil in the transducer, and the filling oil is pressurized to generate corresponding internal pressure along with the rise of the external pressure so as to achieve the balance of the internal pressure and the external pressure, thereby enabling the transducer to work under the condition of high static pressure. The wide-beam directional transducer has the characteristic of horizontal non-directional property, can obtain the directional property of a wide beam in the vertical direction by reasonably designing the diameter, the height and other dimensions of the ceramic circular ring, is a semi-space directional transducer, and is more suitable for being adopted by the system.

In addition, the performance of each frequency point of the active sounding and position indicating response frequency section cannot be fully considered by adopting a single transducer, so that the underwater sound position indicating beacon adopts two independent receiving and transmitting integrated transducers 1. The maximum transmission voltage response frequency of the low-frequency transducer corresponds to the active sound production frequency. The high frequency transducer operating frequency corresponds to the response sounding and underwater acoustic communication frequencies. The two receiving and transmitting integrated transducers 1 are spliced piezoelectric ceramic rings and placed into a rubber bag, and the inside of the rubber bag is filled with oil and is provided with a pressure balancing device. Both a stacked or side-by-side arrangement may be used.

As shown in fig. 3, the embodiment of the present invention is a schematic structural diagram in the pressure-resistant housing of the active and passive underwater sound position-indicating beacon system, and the top of the pressure-resistant housing 4 of the underwater sound position-indicating beacon is provided with an underwater sound position-indicating beacon housing end enclosure 3, and fixed connection is realized through screws. In addition, a first O-shaped sealing ring 10 is arranged at the connecting corner of the underwater sound level indicating beacon shell sealing head 3 and the underwater sound level indicating beacon pressure-resistant shell 4, and a second O-shaped sealing ring 11 is also arranged at the butt joint of the first O-shaped sealing ring and the second O-shaped sealing ring, so that the water tightness of the underwater sound level indicating beacon pressure-resistant shell is realized.

Further, as shown in fig. 3, a first protection cover 14 is arranged outside the watertight connector 2 at the top of the underwater sound level indicating beacon housing end socket 3, so as to effectively protect the watertight connector 2. In addition, a second watertight connector 12 is arranged at the top of one side of the pressure-resistant shell 4 of the underwater sound position-indicating beacon, so that the connection of a control host is facilitated. Meanwhile, a second protective cover 13 is arranged on the outer side of the second watertight connector 12, so that the second watertight connector 12 is effectively protected. The underwater sound location beacon pressure-resistant shell 4 is of a titanium alloy cylindrical barrel pressure-resistant structure, is integrally machined without a welding structure, an annular base serves as a reinforcing rib, watertight connectors are installed on a top end cover and a cylindrical flange through holes, the design depth is 7000 m, a battery pack is installed on a flat plate end socket flange, vibration-damping materials are filled in gaps between the bottom and the side wall of the battery pack, and the battery pack covers about 99.8% of the sea area of the whole world.

As shown in fig. 2, the autonomous energy module 6 is disposed on one side of the pressure-resistant housing 4 of the underwater sound location beacon, and is electrically connected to the circuit module 5 through a first watertight connector 7. As shown in fig. 4, the autonomous energy module 6 includes an autonomous energy module pressure casing 603 and an autonomous energy module casing head 601 disposed on the top of the casing, the two are fixedly connected by bolts, and are water-sealed by a third O-ring 608 and a fourth O-ring 609. The bottom of the inner side of the pressure-resistant shell 603 of the autonomous energy module is provided with a vibration reduction mechanism 604, the bottom of the vibration reduction mechanism 604 is of a hemispherical structure and is matched with the inner wall structure of the pressure-resistant shell 603 of the autonomous energy module, the top of the vibration reduction mechanism is provided with a vibration reduction plate 602, a battery pack 605 is arranged inside the pressure-resistant shell 603 of the autonomous energy module, the mass of the battery pack 605 is large, vibration reduction on the battery pack 605 is realized through the matching of the vibration reduction mechanism 604 and the vibration reduction plate 602, and the battery pack 605. The utility model discloses a withstand voltage casing of autonomic energy adopts titanium alloy pressure-resistant structure, and integration machine addition type does not have welded structure, and annular base is as strengthening the rib simultaneously, design degree of depth 7000 meters, head flange mounting battery pack, and damping material is filled in bottom and lateral wall clearance, realizes the damping to the group battery, avoids the group battery to damage because of equipment vibration. In addition, a third watertight connector 606 is provided on one side of the pressure-resistant housing 603 of the autonomous energy module, and a third protective cover 607 is provided on the outer side thereof for protecting the third watertight connector 606.

As shown in fig. 5, which is a schematic diagram of a circuit structure in the autonomous energy module 6, an autonomous energy module main control board 610 is disposed in the autonomous energy module 6, one end of the autonomous energy module main control board is connected to a battery pack 605, the battery pack is divided into a plurality of groups connected in series or in parallel, which may be 12.8V/100Ah battery packs or 25.6V/50Ah battery packs, and output is implemented by controlling the autonomous energy module main control board 610, so as to supply power to the underwater sound localization beacon in an emergency. The utility model discloses an underwater sound registration beacon is from taking withstand voltage independently energy module 6 power supplies, can provide Y month initiative sound production, Z month response standby sound production electric quantity for underwater sound registration beacon.

Fig. 6 is a schematic view of a communication organization structure of an active and passive underwater acoustic position-indicating beacon system according to an embodiment of the present invention. Wherein, circuit module 5 includes power conversion module 501, power amplifier module 502 and decoding module 503, and the output of control host computer 15 is connected with power conversion module 501's input, and the control host computer 15 of being convenient for will independently sound production, self-detection sound production, pronunciation send start signal transmission for power conversion module 501. The decoding module 503 is interconnected with the control host 15, so that the control host 15 can transmit the self-sounding signal and the self-detection sounding signal to the decoding module 503, and meanwhile, the mutual transmission of the voice gating signals is realized. In addition, the decoding module 503 completes the autonomous sounding signal, the self-detection sounding signal, the voice signal modulation and demodulation, and the autonomous sounding, the self-detection sounding, the sleep, and the voice state switching, that is, controls the power conversion module to gate different signal paths according to the signal instruction of the control host 15. The modulation and demodulation generates different signal forms (autonomous sounding and self-detection sounding) according to a signal instruction of a control host when an indication bit occurs; the coding modulation of the transmitted voice and the decoding demodulation of the received voice are completed in the voice communication.

As shown in fig. 6, the autonomous energy module 6 and the ship power are connected to the power conversion module 501, the output terminal of the power conversion module 501 is connected to the input terminal of the emergency bidirectional speech module 8, so that the power of DC9V or DC24V on the autonomous energy module 6 is conveniently converted into DC24V through the power conversion module 501, or the ship power DC24V is converted into DC24V to supply power to the emergency bidirectional speech module 8, the emergency bidirectional speech module 8 is interconnected with the decoding module 503, so that the decoding module 503 transmits the speech conditioning analog signal to the emergency bidirectional speech module 8, and meanwhile, the emergency bidirectional speech module 8 transmits the low-power speech analog signal to the decoding module 503.

Further, the output end of the power conversion module 501 is connected to the input end of the power amplifier module 502, so as to provide a DC5V, a DC12V or a DC72V power supply for the power amplifier module 502. The output end of the decoding module 503 is connected to the power amplifier module 502, and is configured to transmit the low-power underwater sound indication/voice/self-detection electrical signal to the power amplifier module 502. In addition, the output end of the power amplifier module 502 is connected with the receiving and transmitting integrated transducer 1, and is used for transmitting the high-power underwater sound indicating position and the high-power voice analog electric signal to the receiving and transmitting integrated transducer 1. The receiving and transmitting integrated transducer 1 is respectively interconnected with the underwater sound locating device 16 and the underwater sound communication device 17, and is used for transmitting an underwater sound indicating sound signal to the underwater sound locating device 16 and feeding back an active and passive conversion instruction sound signal of the underwater sound locating device 16 to the receiving and transmitting integrated transducer 1; meanwhile, the transceiver-integrated transducer 1 transmits the voice sound signal to the underwater acoustic communication device 17, and feeds back the voice communication start/stop sound signal of the underwater acoustic communication device 17 and the voice sound signal to the transceiver-integrated transducer 1. In addition, the output end of the transducer 1 for transmitting and receiving information is connected to the decoding module 503, and is configured to feed back the bit indication/voice start instruction electrical signal and the original voice electrical signal of the transducer 1 for transmitting and receiving information to the decoding module 503. The utility model discloses an underwater sound shows position beacon system, underwater sound shows position beacon underwater sound and shows position circuit and emergent two-way voice module hardware sharing, installation and put up altogether, and single equipment can realize showing position and two-way voice communication function. In addition, the output end of the water contact short circuit is connected with the power supply conversion module 501, and the underwater sound position indicating beacon can be started by various means, such as a starting signal of a carrying platform internal control host or a water contact short circuit signal after the buoy is released, the signals are mutually redundant and standby, so that the reliable starting of the underwater sound position indicating beacon after the carrying platform is lost is ensured.

The power amplifier module 502 is divided into two units, the first unit is a modulator 5021, and the audio signal is PWM modulated into a digital signal, so that the audio information is modulated into a pulse waveform. The second unit is a class D power amplifier 5022, which is a pulse-controlled high-current switching amplifier, and converts the PWM signal into a high-voltage signal to be output to the transceiver transducer 1. Only one low-pass filter is needed to recover the audio information during demodulation at the receiving end, as shown in fig. 7.

The utility model discloses a circuit module 5 adopts the modularized design, and the formula structure is inserted to the violently, installs on cylinder frame inner circuit board support through locking bar device. The design difficulty mainly lies in the aspects of low power consumption, integrated shared power amplifier and the like. 1) And (3) low power consumption design: in order to realize long-time standby and active and passive sounding, ultra-low power consumption design and power supply hierarchical management of the underwater sound position indicating beacon are carried out. Firstly, adopt ripe low-power consumption electronic circuit technique, the circuit unit on duty that cooperation underwater sound receiver and ultra-low power consumption MCU constitute and have power management circuits such as switch-enabled low-power consumption LDO, VMOS, the underwater sound registration beacon stand-by power consumption is less than 60mW, can realize the long-term work of low-power consumption. Secondly, a power supply hierarchical management system is adopted, the system is in a dormant standby state after being initialized, the MCU is in a deep dormant state and controls the power supply management circuit to enable other circuits to be in a turn-off state; when a wake-up signal is received, the MCU controls the underwater sound receiver to be powered on, and the circuit unit on duty starts to work; and when the underwater sound receiver receives the response instruction signal, the MCU controls the signal processing unit to be powered on to carry out instruction resolving, and after the resolving is finished, the signal processing unit is switched off and enters a standby state again. Thirdly, the underwater sound signal high-power transmitting battery and the low-power consumption on-duty standby battery are mutually independent and special for electricity, so that the use reliability of the battery is improved, and the standby work requirement of the battery is ensured. The working state control and the power supply conversion control are both realized by a control module, and a control circuit adopts a low-power MSP430 singlechip as a main control unit. 2) The design of an integrated shared power amplifier: the power amplification module is mainly used for amplifying the power of the two signals, namely the underwater sound indicating beacon indicating signal and the communication signal. In order to ensure a larger transmission power ratio, meet the requirements of sound source level and simultaneously give consideration to the requirements of low noise and small distortion of underwater acoustic communication, the scheme adopts a D-type power amplifier as a power amplifier module of an underwater acoustic position indicating beacon. The class-D power amplifier has the characteristics of high efficiency, small distortion, low noise, large dynamic range and the like, particularly has extremely high efficiency which can reach 100% theoretically, can generally reach more than 90% -95% in practical application, and is very suitable for being applied to occasions where underwater batteries continuously supply power.

The emergency bidirectional voice module 8 does not change the total body and interface of the underwater sound position indicating beacon hardware, shares circuits such as a power amplifier and the like, shares a transducer and a hydrophone, and realizes voice communication between rescue forces on the same water surface. The emergency bidirectional voice module 8 has a working process as shown in fig. 8, and is divided into two states, namely, a transmitting working condition and a monitoring working condition. After the system is powered on and initialized, if the task of sending voice does not exist, the monitoring working condition is entered. The underwater acoustic communication MODEM receives an acoustic signal in water, and receives and stores a voice packet. The underwater acoustic communication MODEM demodulates the signal while receiving the data packet, and restores it to a voice compression packet. The voice signal is transmitted to the servo control host through the serial port. The latter decompresses the voice compressed packet, restores the decompressed voice compressed packet into an original voice signal through the voice Codec, and plays the voice signal through a loudspeaker.

As shown in fig. 9, the working principle of the underwater acoustic position-indicating beacon of the present invention is as follows:

(1) active sounding mode: the automatic control unit detects that the cableless alarm buoy or the control host 15 triggers an autonomous sounding signal, and enters an active sounding mode after delaying for a specified time. The automatic control unit generates a short pulse sound source electric signal at regular time, the signal is amplified by the signal of the power amplification module 502, and a high-frequency position indicating sound source is generated through electro-acoustic conversion of the transceiver integrated transducer 1.

(2) Passive answer mode: after the underwater sound location beacon power supply is started, the receiving and transmitting integrated transducer 1 receives the environment signals in the frequency band uninterruptedly, the automatic control unit recognizes the location finding instruction through signal conditioning of the signal conditioning unit, and the beacon is switched into a passive response mode. In the passive response mode, the beacon is silent in normal state, the automatic control unit generates a short pulse sound source electric signal only when a position finding instruction is identified, the signal is amplified by the power amplification module 502, and a low-frequency position indicating sound source is sent out through electro-acoustic conversion of the transceiver integrated transducer 1. If the beacon is switched into the passive response mode by receiving the position searching instruction in the active sounding mode, the beacon is automatically restored to the active sounding mode without receiving the position searching instruction within M hours. If the beacon works in the active sounding mode for a specified time (Y months), the beacon automatically changes into the passive response mode.

(3) Two-way underwater sound voice communication mode: the receiving and transmitting integrated transducer 1 receives an environment signal, the automatic control unit recognizes the environment signal as an emergency voice communication instruction through signal conditioning of the signal conditioning unit, the power supply of the voice communication module is controlled to be started, and the beacon is switched into a voice communication mode. In the voice communication mode, the beacon is silent in normal state, and the voice information received by the transceiver transducer 1 is transmitted to the control host 15 through the voice communication module; before the personnel in the boat send the voice information, the voice control signal is started, at the moment, the automatic control unit suspends receiving the signal of the receiving and transmitting integrated transducer 1, the voice signal received from the control host 15 is amplified through the signal of the power amplification module 502, and the voice information is sent out through electro-acoustic conversion of the receiving and transmitting integrated transducer 1. If the beacon is switched into the voice communication mode by receiving the emergency voice communication instruction in the active voice production mode, the beacon is automatically recovered to the active voice production mode without receiving the voice communication information within M hours.

(4) Self-checking mode: the automatic control unit detects a starting signal of the control host 15, and when a self-checking control signal is detected within a specified sounding delay time period, the beacon enters a functional self-checking mode. The automatic control unit generates an extremely short pulse sound source electric signal, the signal is amplified by a low-power signal of the power amplification module 502, and a self-checking sound source is sent out through the transceiver integrated transducer 1.

(5) A sleep mode: when the beacon is in the active sound production mode, the automatic control unit detects a sleep signal sent by the control host 15, and the beacon enters the sleep mode and does not output a sound source signal any more.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (10)

1. An active and passive underwater acoustic beacon system, the beacon comprising:

the underwater sound location indicating beacon energy-saving device comprises an underwater sound location indicating beacon pressure-resistant shell (4) and a receiving and transmitting integrated energy converter (1), wherein one end of the underwater sound location indicating beacon pressure-resistant shell (4) is fixedly connected with the pressure-resistant shell through a base, the other end of the underwater sound location indicating beacon pressure-resistant shell is connected with the receiving and transmitting integrated energy converter (1) through a watertight connector (2), and the receiving and transmitting integrated energy converter (1) is detachably connected with a light shell through a conformal detachable plate;

the underwater sound position indication beacon pressure-resistant shell (4) is internally provided with a circuit module (5), the circuit module (5) comprises a power supply conversion module (501), a power amplifier module (502) and a decoding module (503), the output end of a control host (15) is connected with the power supply conversion module (501), the control host (15) can transmit an automatic sounding signal, a self-detection sounding signal and a voice sending starting signal to the power supply conversion module (501), and the decoding module (503) is interconnected with the control host (15) and is used for realizing the switching of the automatic sounding signal, the self-detection sounding signal, the voice signal modulation and demodulation and the automatic sounding, the self-detection sounding, the dormancy and the voice states; one end of the power amplifier module (502) is connected with the decoding module (503), and the other end of the power amplifier module is connected with the receiving and transmitting integrated transducer (1) so as to amplify the signal and realize the bidirectional conversion of the electric signal and the acoustic signal through the receiving and transmitting integrated transducer (1); and

and the emergency bidirectional voice module (8) is interconnected with the decoding module (503), so that the bidirectional voice communication between the water surface side rescue force and the inside of the boat can be realized under the emergency condition.

2. An active and passive underwater acoustic level indicating beacon system according to claim 1, wherein the output end of the decoding module (503) is connected with the power amplifier module (502) for transmitting the low-power underwater acoustic level/voice/self-detection electric signal to the power amplifier module (502);

the output end of the power amplifier module (502) is connected with the receiving and transmitting integrated transducer (1) so as to transmit the high-power underwater sound indicating position and the high-power voice analog electric signal to the receiving and transmitting integrated transducer (1).

3. The active and passive underwater acoustic position-indicating beacon system of claim 1, wherein the power amplifier module (502) comprises two units, wherein the first unit is a modulator (5021) for PWM modulating an audio signal into a digital signal,

the second unit is a D-type power amplifier (5022) for converting the PWM signal into a high-voltage signal and outputting the high-voltage signal to the transceiver transducer (1).

4. An active and passive underwater acoustic position-indicating beacon system according to claim 1, characterised in that it comprises an underwater acoustic locating device (16) and an underwater acoustic communication device (17), the transceiver-integrated transducer (1) being interconnected with the underwater acoustic locating device (16) and the underwater acoustic communication device (17), respectively.

5. An active and passive underwater acoustic position-indicating beacon system as claimed in claim 1, characterized in that it comprises an autonomous energy module (6) connected to the ship power and to the power conversion module (501), respectively, the output of the power conversion module (501) being connected to the input of the emergency bidirectional speech module (8), so as to supply the emergency bidirectional speech module (8) with DC9V or DC24V power on the autonomous energy module (6) or with the ship power DC24V through the power conversion module (501).

6. The active and passive underwater sound position-indicating beacon system is characterized in that an underwater sound position-indicating beacon shell sealing head (3) is arranged at the top of a pressure-resistant shell (4) of the underwater sound position-indicating beacon and is fixedly connected through a screw;

a first O-shaped sealing ring (10) is arranged at the connecting corner of the underwater sound position indicating beacon shell sealing head (3) and the underwater sound position indicating beacon pressure-resistant shell (4);

and a second O-shaped sealing ring (11) is arranged on the butt joint surface of the underwater sound position indicating beacon shell sealing head (3) and the underwater sound position indicating beacon pressure-resistant shell (4).

7. An active and passive underwater acoustic level indicating beacon system according to any one of claims 1 to 5, characterized in that a second watertight connector (12) is arranged on the top of one side of the pressure-resistant housing (4) of the underwater acoustic level indicating beacon, and a second protective cover (13) is arranged on the outer side of the second watertight connector (12);

the underwater sound position indication beacon pressure-resistant shell (4) is of a titanium alloy cylindrical barrel pressure-resistant structure and is integrally machined.

8. An active and passive underwater acoustic position-indicating beacon system according to any one of claims 1-5, wherein the autonomous energy module (6) comprises an autonomous energy module pressure-resistant housing (603) and an autonomous energy module housing end socket (601) arranged at the top of the autonomous energy module pressure-resistant housing, the autonomous energy module housing end socket and the autonomous energy module housing end socket are fixedly connected through bolts, and water sealing is realized through a third O-shaped sealing ring (608) and a fourth O-shaped sealing ring (609);

a damping mechanism (604) is arranged at the bottom of the inner side of the pressure-resistant shell (603) of the autonomous energy module;

the bottom of the vibration reduction mechanism (604) is of a hemispherical structure and is matched with the inner wall structure of the pressure-resistant shell (603) of the autonomous energy module, and the top of the vibration reduction mechanism is provided with a vibration reduction plate (602).

9. The active and passive underwater acoustic position-indicating beacon system of claim 8, wherein the autonomous energy module pressure-resistant housing (603) is internally provided with a battery pack (605) and an autonomous energy module main control board (610).

10. An active and passive hydroacoustic position beacon system according to claim 8, characterized in that the autonomous energy module pressure hull (603) is provided with a third watertight plug (606) on one side and a third protective cover (607) on the outside.

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