RU154368U1 - HYDROACOUSTIC STATION - Google Patents

Abstract

1. Hydroacoustic station of a surface object, consisting of equipment placed on its board and lowered by means of a cable-rope, descent-lifting device (SPU) and outboard equipment (ZBA), the outboard equipment being connected via cable-cable to the onboard equipment, onboard the equipment (BA) contains a central computer complex (CVC) with a monitor and control panel, configured to connect to peripheral and external devices, a power supply system and a generator (GU), signal input / output One of which is connected to the CVC, and the power output is connected to the cable-cable, the CVC is connected via cable-cable to the outboard equipment; the outboard equipment contains the first and second hydroacoustic antennas, the first hydroacoustic antenna made in the form of a flexible long linear receiving antenna connected through the first multichannel pre-treatment apparatus (APO1) and a cable cable with a CVC, characterized in that the first hydroacoustic antenna is in the working position vertically, made in the form of a digital phased antenna array with the possibility of forming a static fan of directivity in a vertical plane STI and contains a multichannel unit of hydroacoustic transducers (BHP) and APO1 connected in series with it, sealed in a single construct; the second hydroacoustic antenna is made in the form of a multichannel receiving-emitting phased antenna array of cylindrical shape (PIA) with the possibility of forming a static XN fan, while the axis of the PIA in the working position is vertical; complement�

Description

The utility model relates to the field of hydroacoustics and can be used on oil and gas platforms, on surface ships, as well as in studies of the oceans.

Active-passive hydroacoustic stations (GAS) usually contain a receiving-emitting hydroacoustic antenna emitting and receiving paths connected to the central computer complex (CVC) and controlled from the GAS console [1, 2, 3]. Some of the GAS surface ships and submarines have produced long linear antenna [1, 4, 5].

The closest in functional and technical characteristics to the proposed utility model of a hydroacoustic station is the “Hydroacoustic station for a surface ship” according to the patent for a utility model [6], which is adopted as a prototype. The prototype device contains a CVC with a control panel, a radiation path with a small-sized omnidirectional low-frequency radiating antenna, and a reception path with an extended towed antenna, made as a linear multi-channel antenna. The emitting and receiving antennas are released to the desired depth with the help of a lifting and lifting device (SPU) and are placed horizontally in the working position. Antennas are connected to the receiving and radiating paths by a cable cable. A depth sensor is integrated in the emitting antenna to monitor cavitation.

The prototype device has a number of disadvantages that do not allow it to be used when it is necessary to work with a stationary carrier, for example, from a drilling platform, because during operation, both antennas must be in a horizontal position, and they occupy this position when lowering the antennas when the carrier moves. The main disadvantages of the prototype can also include:

- the radiating low-frequency antenna is made non-directional, so it is impossible to carry out directional (sector) radiation;

- the receiving antenna does not have directivity in the vertical plane, which does not allow to determine the depth of the target when analyzing the echo signal;

- the receiving and radiating paths in the prototype device are fully placed on board the carrier ship, which increases the number of cable channel information channels, as well as the dimensions of the on-board equipment.

The main objective of the proposed utility model is to provide target detection from a fixed medium, to determine target coordinates, including distance and location depth, while reducing the number of information communications and increasing noise immunity.

To solve the problem in the hydroacoustic station of a surface object, consisting of equipment placed on its board and lowered using a cable, a descent and lifting device (SPU) and outboard equipment (ZBA), and the outboard equipment is connected via cable to the airborne equipment, on-board equipment (BA) contains a central computer complex (CVC) with a monitor and control panel, configured to connect to peripheral and external devices, a power supply system and a generator roystvo (SU), the signal input / output of which is connected to the CEC, and the power output - with cable-cable, cable through the CEC-connected cable from the seawater equipment; the outboard equipment contains the first and second sonar antennas, and the first sonar antenna is made as a flexible long linear receiving antenna connected through the first multichannel pre-processing equipment (APO1) and a cable cable with a CVC,

new features introduced, namely

- the first sonar antenna in the operating position is vertically arranged in the form of a digital phased antenna array with the possibility of forming a static fan of directivity in the vertical plane, and contains a multi-channel unit of sonar transducers (BHP) and connected in series APO1, sealed in a single construct;

- the second hydroacoustic antenna is made in the form of a multichannel receiving-emitting phased antenna array of cylindrical shape (PIA) with the possibility of forming a static fan XN, while the axis of the PIA in the working position is vertical,

- the generating device is multi-channel;

- additionally, the second pre-processing equipment (APO2), made multi-channel, the first orientation unit (BO1) connected to the APO2 channel and the transceiver (TS), the inputs of APO1 connected to the BHP channels and the outputs to the first input of the vehicle, APO2 inputs, are introduced connected to the PIA channels, and the outputs to the second input of the vehicle, and the cable cable contains power cores and fiber optic wires, the fiber optic cable wires are connected to the vehicle outputs, and the power cable cores to channels of the second sonar antenna.

The design of the outboard equipment is optimal, made in the form of three modules - upper, middle and lower, with the upper module mechanically and electrically connected to the cable, the middle module mechanically and electrically connected to the upper and lower modules. The upper module is a cylinder, on the external surface of which hydroacoustic transducers are installed, which form the FIA, and a sealed container is placed in the internal volume, in which are located APO1, BO1 and TS. The middle module is the first sonar antenna, and the lower module is a sealed container, contains a second orientation unit (BO2) connected to the APO2 channel, as well as a load designed to hold the first sonar antenna in a vertical position.

The technical results of using the introduced new features for the proposed utility model, the validity of which is presented below, are:

- the ability to work from a fixed medium using a hydroacoustic antenna, which occupies a vertical position under the action of the load (the vertical position is controlled by the entered block BO1); vertical antenna provides the ability to accurately determine the depth of the target, the direction is determined by the size of the vertical antenna;

- providing non-directional and directional radiation in the horizontal plane, which allows you to realize a circular and sector-wide view in the active mode and increase the pressure level in the probing signal, while the directivity is determined by the diameter of the second sonar antenna;

- reducing the number of cable channel information channels through the use of fiber optic lines and the formation in each optical channel of a signal packet of various antenna and APO channels;

- increasing the noise immunity of the APO and cable cable channels by bringing the APO channels closer to the acoustic transducers of the first and second antennas, including by incorporating the APO modules into the body of the second antenna, as well as by transmitting information over a long line (cable cable) in the form optical signals.

The essence of the utility model is illustrated in FIG. 1, which shows a diagram of the electrical connections of the elements included in the device, and FIG. 2 which shows the position of the parts of the device when working for its intended purpose, and a drilling platform is schematically represented as a carrier object.

The proposed GAS contains on-board equipment 1 (BA) located on the carrier object, and outboard equipment 2 (ZBA), which are connected by a cable-cable 3. Cable-cable 3 contains power cores and fiber optic cores (Fig. 1). ZBA descends from the carrier object to a predetermined depth using the descent-lifting device (SPU) (Fig. 2).

BA 1 consists of interconnected CVC 4 and generator device 5 (PG), and the channels of the PG are connected to the power cores of the cable cable 3. CVC 4 is connected to the fiber optic cores of the cable cable.

ZBA 2 consists of three modules - the upper module 6 (VM), the first sonar antenna, which is made in the form of a long vertical antenna 7 (VPA) and represents the middle module (Fig. 2), and the lower module 8 (NM), made in a sealed container. The modules are mechanically connected by flanges (see Fig. 2), and BM 6 is connected by a flange with a cable-rope 3.

BM 6 (Fig. 1) contains a second sonar antenna 9, which is made in the form of a receiving-emitting cylindrical antenna (PIA), and a sealed container 10 (GK). GK 10 contains the second pre-processing equipment 11 (APO2), the first orientation unit 12 (BO1) and the transceiver 13 (optoelectronic converter - TS). APO2 11 is electrically connected to PIA 9, BO1 12 and TS 13. BO1 12 is designed to control the orientation of PIA 9 in the horizontal plane.

The middle module ZBA 2, which is the first hydroacoustic antenna, which is a digital phased antenna array, contains a multi-channel unit of hydroacoustic transducers 14 (BHP), each channel of which is electrically connected to the corresponding channel of the first pre-processing equipment 15 (APO1). APO1 15 is electrically connected to the transceiver 13.

The lower module 8 is a second sealed container, contains a second orientation unit 16 (BO2) and a load 17 designed to hold the CM 7 in a vertical position. BO2 16 is electrically connected to the channels APO2 91 and is designed to control the orientation of SM 7 in a vertical plane.

BA 1 also contains a power supply system (not shown in Fig. 1 and 2), the input of which is connected to the power supply network of the carrier object, and the outputs are connected to the CVC 4, GU 5, and also through the power conductors of the cable-rope 3 with APO2 11, BO1 12, APO1 15 and BO2 16.

Structurally, VM 6 is a cylinder closed by flange covers, the upper flange is connected to the flange of the cable-rope 3, and the lower one is connected to the upper flange of the VPA 7 (Fig. 2). The PIA 9 sonar transducers are installed on the cylinder walls, and the GK 10 is placed in the internal volume of the cylinder. The flanges of all ZBA 2 modules are connected mechanically, and electrical connections pass through them.

Constructive and other characteristics of the individual nodes and elements making up the HAC are known from the literature.

Antenna 9 is reversible, designed to convert acoustic signals into electrical (in reception), electrical signals into acoustic (during radiation). VPA 7 is structurally the same as a flexible long towed antenna. Information on the designs of antennas 7 and 9 is presented in [5, 7, 8, 10].

Generator device 5 performs the functions of a multi-channel power amplifier, the structure of the amplified signal in each channel of which is formed by CVC 4 [2].

The pre-processing equipment 11 and 15 is performed on analog or analog-digital means. The main functions of the APO are amplification and filtering. Depending on the construction of the processing scheme in the APO, data can be converted from analog to digital form [1, 2].

The main functions of CVC 4 and the means of display, registration, documentation and management included in the CVC are set forth in the book [1]. CVC works with data in digital form. The contents of his work are control algorithms, the formation and processing of information, implemented by software. Depending on the tasks to be solved, the CVC can be a multi-machine complex consisting of processors of various types [1]. The CVC provides sockets and ports for connecting peripheral devices (microphone, telephones, printer, external memory, etc.).

A description of the operation of orientation blocks 12 and 16 is presented in the article [9]. BO1 and BO2 are identical in design, the turn of the PIA 9 is controlled by a magnetometer, and the deviation from the vertical of the VPA 7 is controlled by a three-component accelerometer. Both of these devices are part of BO1 / BO2.

The launching device is a reel-drum, on which a cable-cable 3 is wound.

The proposed device is designed to work in a stationary position of the carrier object, which may be a surface ship in drift, or an offshore platform. In the working position, the outboard equipment 6 is released into the water with the help of a lifting and lifting device (see Fig. 2).

The station is controlled by an operator, who is located behind the control panel. The operator selects the required operating mode, and also, depending on the hydrological and acoustic conditions, selects the horizon to which the outboard equipment is raised / lowered. In the case of choosing the radiation mode, the probe signal is emitted using the PIA 9, the echo signal from the target is received by the PIA 9 and the vertical receiving antenna (CM 7). The received PIA 9 signal undergoes primary processing in the channels APO2 11, and the received vertical antenna - in the channels APO1 15. After APO1, APO2, the signals are transmitted to the transceiver 13, where they are converted into optical and fiber-optic cores of the cable cable 3 are received in CVC 4. At the same time from BO2 12, information about the position of the PIA 9 is received in the CVC, and from BO1, information about the position of the vertical antenna, and the corresponding amendments are taken into account in the CVC. In CVC 4, secondary processing is performed, which consists in determining the bearing on the target, the depth of the target and the distance to it.

Thus, the problem of underwater observation [1], consisting in detecting the target and determining its coordinates, is solved. Data in the form of alphanumeric or other information is sent to the monitor and presented to the operator.

The introduction of new essential features in the SAC provides the claimed technical effect:

- the ability to work with a fixed medium;

- implementation of directional radiation in horizontal and vertical planes;

- the formation of directional reception in the horizontal and vertical planes, which, together with the determination of the angular coordinates in both planes and the determination of the distance to the target by the echo signal, completely solves the coordinate problem of underwater observation [1, 2];

- receiving an echo signal on two antennas allows for joint processing;

- reducing the length of the communications antenna channel - the channel of the primary processing equipment increases the noise immunity of the device in the most vulnerable place; further increases the noise immunity using the transmission of signals along a long line (cable-cable) through fiber optic channels.

The utility model provides the claimed technical effect and can be used from carriers that are stationary when performing underwater technical work for various purposes, as well as for research purposes.

Information sources

1 Koryakin Yu.A., Smirnov S.A., Yakovlev G.V. Ship sonar equipment. St. Petersburg: Science, 2004.

2 Handbook of Hydroacoustics, 2nd ed. L .: Shipbuilding, 1988.

3 RF patent for utility model No. 111308. Hydroacoustic complex surface ship. IPC G01S 15/87.

4 RF Patent No. 2502085. Hydroacoustic station for a surface ship. IPC G01S 17/02.

5 RF patent for utility model No. 104330. Hydroacoustic station for a surface ship. IPC G01S 15/88.

6 RF patent for utility model No. 67291. Acoustic station surface ship. IPC G01S 15/89 (PROTOTYPE).

7 Smaryshev M.D., Dobrovolsky Yu.Yu. Hydroacoustic antennas. L .: Shipbuilding, 1984.

8 Andreev M.Ya., Okhrimenko S.N., Rubanov I.L. Development of a sonar station with a flexible long towed antenna for lighting underwater conditions. // Sensors and Systems, 2008, No. 11, pp. 29-31.

9 Zheltakov A.V., Semenova S.A. Orientation system for a long-distance towed hydroacoustic antenna (GPBA) // Underwater Research and Robotics, 2011. No. 2 (12). S. 56-63

10 RF Patent No. 2426146. Flexible extended hydroacoustic digital antenna. IPC G01S 7/52.

Claims (2)

1. Hydroacoustic station of a surface object, consisting of equipment placed on its board and lowered by means of a cable-rope, descent-lifting device (SPU) and outboard equipment (ZBA), the outboard equipment being connected via cable-cable to the onboard equipment, onboard the equipment (BA) contains a central computer complex (CVC) with a monitor and control panel, configured to connect to peripheral and external devices, a power supply system and a generator (GU), signal input / output One of which is connected to the CVC, and the power output is connected to the cable-cable, the CVC is connected via cable-cable to the outboard equipment; the outboard equipment contains the first and second hydroacoustic antennas, the first hydroacoustic antenna made in the form of a flexible long linear receiving antenna connected through the first multichannel pre-treatment apparatus (APO1) and a cable cable with a CVC, characterized in that the first hydroacoustic antenna is in the working position vertically, made in the form of a digital phased antenna array with the possibility of forming a static fan of directivity in a vertical plane STI and contains a multichannel unit of hydroacoustic transducers (BHP) and APO1 connected in series with it, sealed in a single construct; the second hydroacoustic antenna is made in the form of a multichannel receiving-emitting phased antenna array of cylindrical shape (PIA) with the possibility of forming a static XN fan, while the axis of the PIA in the working position is vertical; additionally, the second pre-processing equipment (APO2), made multi-channel, the first orientation unit (B01) connected to the APO2 channel, and the transceiver (TS), the inputs of APO1 connected to the BHP channels and the outputs to the first input of the vehicle, the inputs of APO2 are connected with PIA channels, and the outputs with the second input of the vehicle, and the cable cable contains power conductors and fiber optic wires, the fiber optic cable wires are connected to the vehicle outputs, and the power wires of the cable cable with channels of the second sonar antenna; the generating device is multi-channel. 2. The hydro-acoustic station according to claim 1, characterized in that the outboard equipment is made in the form of three modules - upper, middle and lower, with the upper module mechanically and electrically connected to the cable, the middle module mechanically and electrically connected to the upper and lower modules ; wherein structurally, the upper module is a cylinder, on the external surface of which hydroacoustic transducers are installed, which form the FIA, and a sealed container is placed in the internal volume, in which APO2, BO1 and TS are placed; the middle module is the first sonar antenna, and the lower module is a sealed container, contains a second orientation unit (BO2) connected to the APO2 channel, as well as a load designed to hold the first sonar antenna in a vertical position.

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