SU1138810A1 - Device for simulating process of sounding floor terrain by solar system and echo sounder - Google Patents

Abstract

A DEVICE FOR MODELING THE BOTTOM RELIEF RECONNECTION BY HYDROLOCKER AND ECHOLOT, containing two keys, two digital-to-analogue converters, a clock generator, the first adder, the first input of which is the input of the maximum oscillator device, the input of the first component of which has a back switch that has a back switch that has a back switch that has a back switch that has a back switch. the output of which is connected to the first input of the comparator, the output of which is the output of the inclination of the relief of the device, characterized in that, in order to increase the accuracy the second and third adders, three amplifiers, a sync pulse generator, two memory blocks, the first and second sonar signal modeling blocks, each of which is designed as an integrator, a voltage converter into an optical signal, made in the form of an electron beam tube, a unit for converting the bottom relief into an optical signal, made in the form of an optical mask, and a photodetector, the output of which through the first amplifier is connected to the second input of the first adder, the output of which is connected to the inputs of the first The first and second memory blocks, the output of the first memory block is the bottom depth output of the device, the first and second inputs of setting the coordinates of the location of the device are connected to the inputs of the primary recorder and the second digital-analog converter, respectively, the outputs of which are connected to the first inputs of the second and third, respectively adders, the output of the generator (L ra clock pulses connected to the start inputs of the input integrator of the first and second blocks of the simulation of the signal of the sonar, the inputs of the second and third settings are The speeds of the device are connected to the information inputs of the integrators of the first and second blocks of the sonar signal, the outputs of which are connected to the information inputs of the second and third switches, respectively, whose terminals are connected to the second inputs of the first and second totalizers, the outputs of which are connected to the inputs the second and the third amplifiers, respectively; the first and second outputs of the second amplifier are connected respectively to the first and second deflectors; cathode ray tube electrodes, the third and fourth deflection electrodes of which are connected respectively to

Description

the first and second outputs of the third amplifier, the cathode ray tube is optically connected through an optical mask to the input of the photodetector, the output of the clock generator is connected to the control inputs of the first and second switches of the first and second memory blocks, the output of the second memory block is connected to the second input of the comparator .

The invention relates to the field of modeling and can be used in training complexes to simulate the movement of ships or aircraft relative to the topography of the bottom or the earth's surface with the possibility of sounding them with radar stations. A device for simulating a bottom recipe is known, containing a bottom elevation information carrier, a readout unit, voltage-frequency converters and a voltage-code, an indicator, a recorder, a reversible counter, a GL combiner. The disadvantage of this device is that it is impossible to imitate the bottom relief areas away from the vessel at different angles of rotation of the antenna of the locating station in the vertical and horizontal planes. The device closest to the technical essence of the invention is a device for simulating reflected echoes containing registers, reversible counters, digital-to-analog converters, adder, comparator, integrator, AND elements, voltage converters to often “that Z.” A disadvantage of the known devices is that but simulates sounding sonar conditional bottom relief on the side of the vessel, the nature of which is given by the non-linear digital-to-analog converters. The accuracy of modeling specific relief sections of the ocean floor in this device is low and limited mainly by the technical capabilities of digital-to-analog converters. At the same time, the known device does not provide the possibility of simultaneous sounding of the bottom sections with a sonar away from the vessel, depending on the direction of sounding and the echo sounder under the keel of the vessel. In the field training simulators, in which such devices are to be used, it is necessary to simulate the bottom relief of a specific fishing area of the sea in order for the instructors training on the simulator to acquire skills in the area taking into account the features of the bottom relief. This is especially important in conditions of bottom trawling, when the trawl is held at a small distance from the bottom. The use of field training simulators with modeling of the ground relief of specific prog racial areas allows a significant improvement in the quality of training of navigational personnel, which ultimately leads to an increase in the efficiency of commercial operation of vessels in the real field. At the same time, in real-life fishing conditions, the navigator at the same time uses information about the bottom topography and underwater objects away from the vessel, obtained from the sonar, and under the keel of the vessel - from the echo sounder. The purpose of the invention is to simulate the topography of a specific fishing area of the World Ocean with the possibility of sounding it simultaneously with a sonar and an echo sounder, i.e. improved modeling accuracy and enhanced functionality. The goal is achieved by the fact that the device containing two keys, two digital-to-analog converters, a clock generator, the first adder, the first input of which is the input of setting the maximum depth of the device, the input of setting the first component of speed

The input input integrator's input, the output of which is connected to the first input of the comparator, the output of which is the device tilt output, is used to introduce second and third adders, three amplifiers, a clock generator, two memory blocks, the first and second sonar signal modeling units, each of which made in the form of integrators, a voltage converter into an optical signal, a unit for converting a bottom relief into an optical signal made into an optical mask in the form of a cathode ray tube; and a photodetector, the OUTPUT of which through the first amplifier is connected to the second input of the first adder, the output of which is connected to the inputs of the first and second memory blocks, the output of the first memory block is the output of the bottom depth of the device, the first and second inputs of specifying the coordinates of the location of the echo sounder the devices are connected to the inputs of the first and second digital-to-analog converters, respectively, whose outputs are connected to the first, second and third adders, respectively, the output of the clock generator is connected to the start inputs Single input of the integrator and the integrator of the first and second blocks sonar simulation signal input specifying the second and third components of the speed of the device connected to data inputs integvatorov respectively first and second blocks sonar simulation signal, whose outputs are connected to data inputs respectively of the second and

The third switch, the outputs of which are connected to the second inputs of the first and second adders, respectively, whose outputs are connected to the inputs of the second and third amplifiers, respectively; the first and Lora outputs of the second amplifier are connected to the first and the second deflecting electrodes of the cathode ray tube, and the third and fourth deflectors the electrodes of which are connected respectively to the first and second outputs of the third amplifier, the cathode ray tube is optically connected through an optical mask to the photo input receiver output

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the clock generator is connected to the control inputs of the first and second switches and the first and second memory blocks, the output of the second memory block is connected to the second input of the comparator.

FIG. 1 shows a functional diagram of the device; in fig. 2 is a diagram of the decomposition of the velocity vector of a probe pulse; in fig. 3 - time diagram of the device.

The device contains digital-to-analog converters 1 and 2, inputs 3 and 4 of the current coordinates of the vessel X and US, adders 5-7, switches 8 and 9, a generator of 10 sync pulses, integrator 11, blocks of modeling the sonar signal, made in the form of integrators 12 and 13, amplifiers 14 and 15, cathode-ray tube 16, a block for converting a bottom relief into an optical signal, made in the form of a translucent optical mask 17, a photodetector 18, an amplifier 19, a memory block 20 and 21, a comparator 22, a clock generator 23, outputs 24 and 25.

The device works as follows;

The relief of the bottom relief is written on the square translucent optical mask 17. The lower left corner of the mask is taken as the origin of coordinates. Coordinate X is measured on the horizontal side of the mask on the origin of the coordinates, coordinate Y from the origin on the vertical side of the mask, and this direction is taken as the north direction in the received coordinate system. Corners in the horizontal plane are measured from the north direction clockwise. Z coordinate depends on mask transparency, and its value is proportional to mask transparency. Thus, each pair of coordinates X and Y corresponds to the well-defined Vekhshchina coordinate Z.

The translucent optical mask 17 is fixed on the screen of the cathode ray tube 16. On the other side of the optical mask 17 is placed the photodetector 18, Current coordinates X, and Yf. vessel echo sounder and sonar through the corresponding digital-analog transducers 1 and 2 are fed to the first inputs of adders 6 and 7, the second inputs of the adders 6 and 7 through the corresponding switches 8 and 9 are connected relative current coordinates of the sonar pulse from the integrator 12 and 13. The launch of the integrators 12 and 13 is performed on the generator 10 by the synchronizing pulse of the sonar simultaneously with the launch of its probe pulse generator. Switches 8 and 9 and memory blocks 20 and 21 are controlled by pulses of the generator 23, the frequency of which is much higher than the frequency of the generator of the 10 synchronizing pulses of the sonar and is chosen based on the necessary discreteness of matching the bottom relief. The vector of the velocity of propagation of the sonar pulse V is laid out on the horizontal Odz (Fig. 2) and vertical V components. The horizontal component Vv., Is decomposed into its U components by the coordinate axis V and V ;. and Vn. The values are calculated from the vector indices using the expressions V, y V siny V sin B cosY; - angle of inclination of the hydro locator antenna in the vertical plane; antenna rotation angle in the horizontal plane. The analog values of the components X H are fed to the inputs of the integrators 11-13, respectively. Sonar synchronizing pulse integrators 11-13 set in the initial state (Fig. 3, pos. 1). After this, at the outputs of the integrator 12 and 13 appear linearly increasing voltages proportional to the relative coordinates X and Y of the probe pulse, and at the output of the integrator 11, a linearly increasing voltage proportional to the depth of the probe pulse relative to the surface of the sea. The unit level of the synchronizing pulse of the generator 23 (Fig. 3, pos.2) switches 8 and 9 prohibit the passage of the coordinates X and Y of the probe pulse to the adders 6 and 7. At the outputs of the adders there are voltages proportional to the coordinates of the vessel X and Y- ;. These voltages are amplified by amplifiers 14 and 15 and are applied to the corresponding electrodes of the cathode ray tube 16. The dot on the screen of the tube is set to the position corresponding to the current coordinates of the ships, while the brightness of the phosphor is constant for any coordinates. Due to the fact that the optical mask 17 has different transparency, the amount of light incident on the photocathode of the photodetector 18 is different for different coordinates, and therefore the signal size at the input of amplifier 19 is also different. The voltage at the output of amplifier 19 varies from zero to dark areas optical mask 17 flo maximum value on the light areas of the mask. This voltage is added to the voltage Urf- proportional to the depth range. From the output of the adder 5, the voltage corresponding to the depth of the place at a given point with the X and COS coordinates is fed to the inputs of the memory blocks 20 and 21. By a single level of the sync pulse of the generator 13, the recording of information in the memory block 20 is permitted and prohibited in the memory block 21. Thus, the voltage is constantly removed from the output of the memory block 20, which is proportional to the depth of the space at the ship’s position in the received coordinate system. The zero level of the sync pulse of the generator 23 is allowed to pass the relative coordinates X and Y of the probe pulse through the switches 8 and 9 to the adders 6 and 7. At the outputs of the C 6 and 7 and 7 and 7 voltages appear that are proportional to the current true coordinates of the probe pulse. The voltage at the output of the adder5 (Fig. 3, pos. 3), proportional to the depth of the point at the coordinates of the probe pulse, is recorded in memory block 21. The depth of location voltage from the output of the memory block 21 (FIG. 3, pos. 4) is fed to the input of the comparator 22, to the other input which is 711

From the output of the integrator 11, a linearly increasing voltage is applied. I. proportional to the depth of the probe pulse at a given point in time. At the moment of equality of these two stresses, i.e. At the moment when the probe pulse reaches the bottom, a voltage change will occur at the output of the comparator 22 (Fig. 3, pos. 5). The time interval between the synchronizing pulse of the sonar and the moment of voltage change at the output of the comparator 22 is proportional to the slope range of the bottom at a given position of the sonar antenna and the bottom relief in the simulated sea area of the bottom .. The change in the nature of the bottom relief is made by replacing the semi-transparent mask.

Thus, the proposed device due to the inclusion of new units

Fishing allows you to read information about the depth of the place under the keel of the vessel with an echo sounder and sonar away from the vessel within the simulated navigation area. In addition, the device allows you to quickly change the navigation areas by changing the semi-transparent masks. The accuracy of the modeling of specific conditions depends on the accuracy of the mask, which is not a serious difficulty. The use of the proposed device in field simulators can improve the quality of training of navigators, so

how to conduct training in a specific fishing area with the ability to simultaneously receive information from the sonar and sonar allows the navigators to develop

skills required to fish in a given fishing area.

Claims (1)

DEVICE FOR MODELING BOTH RELIEF SENSING WITH A HYDROLOCATOR AND Echo Sounder, containing two keys, two digital-to-analog converters, a clock pulse generator, a first adder, the first input of which is the input of the maximum maximum device, the input of the first component of which is connected to the information input of the input generator, the output of which is connected to the information input of the input generator connected to the first input of the comparator, the output of which is the output of the slope of the relief of the device, characterized in that, in order to improve accuracy, it introduced the second and third adders, three amplifiers, a clock generator, two memory blocks, the first and second sonar signal modeling blocks, each of which is made as an integrator, a voltage to optical signal converter made in the form of an electron beam tube, a relief conversion unit bottom into the optical signal, made in the form of an optical mask, and a photodetector, the output of which through the first amplifier is connected to the second input of the first adder, the output of which is connected to the inputs of the first and second locks of memory, the output of the first memory block is the output of the bottom depth of the device, the first and second inputs of setting the coordinates of the location of the device are connected to the inputs of the first and second digital-to-analog converters, the outputs of which are connected to the first inputs of the second and 3 third adders, respectively, the output of the clock generator is connected to the start inputs of the input integrator of the first and second blocks of modeling the sonar signal, the inputs of the second and third components of the speed of the device with are integrated with the information inputs of the integrators of the first and second blocks of dividing the sonar signal, the outputs of which are connected to the information inputs of the second and third switches, respectively, the outputs of which are connected to the second inputs of the first and second adders, respectively, the outputs of which are connected to the inputs of the second and third amplifiers, first and the second outputs of the second amplifier are connected respectively to the first and second deflecting electrodes of the cathode ray tube, the third and the fourth deflecting electrodes of which are connected respectively to SU.,., 1138810 to the first and second outputs of the third amplifier, the cathode ray tube is optically connected through an optical mask to the input of the photodetector, the output of the clock generator is connected to the control inputs of the first and second switches of the first and second memory blocks, the output of the second memory block is connected to the second input of the comparator.