SU720391A1 - Trawl probe - Google Patents

Description

The invention relates to the field of fish searching equipment, namely, devices for monitoring parameters of fishing gear, and can be used in devices for targeted fishing of depth, twin and bottom trawls. A trawl probe with a cable channel is known, containing a trawl depth sensor from the water surface, an information sensor above the trawl, an information sensor below the trawl, a synchronizer, three recording signal conditioners and a multi-pen recorder, all outputs of all sensors are connected to the corresponding signal inputs of the recording signal conditioners whose outputs are connected to the corresponding inputs of a multi-recorder recorder 1. The disadvantage of this trawling probe is the poor quality of the display of data on fish in the area of Corollary trawl resulting increase discreteness of arrival data of the fish, as well as reducing their registration on the tape recorder. The closest in technical essence and the achieved effect is a trawl probe containing a transmission path consisting of a depth sensor for the trawl from the water surface, an information sensor above the trawl, an information sensor under the trawl, an encoder, an emitter connected to the encoder output, and synchronizer, the high-frequency output of which is connected to the trigger input of the information sensor above the trawl and to the trigger input of the information sensor under the trawl, and the low-frequency output is connected to the trigger input of the depth sensor The trawl paths from the water surface and from one of the inputs of the coding device, the outputs of the above sensors are connected to the corresponding inputs of the coding device, and the receiving-recording path, consisting of an acoustic receiver and a decoding device connected in series, as well as a sweep generator , three recording signal conditioners, the signal inputs of which are connected to the corresponding outputs of the decoder, and the control inputs are connected to the output of the sweep generator, the input of which is Linked to decoding sync output

the device, and the multi-pen recorder, whose holles are connected to the corresponding outputs of the recording drivers 2.

The disadvantage of such a trawl probe is the insufficient resolving ability due to the very small scale of data recording, which makes it impossible to conduct a more or less qualitative analysis of the indications about the fish and its aggregations on the recorder tape.

The aim of the invention is to improve the resolution of the trawl probe by changing the recording scale.

The specified tal is achieved in order. that a trawl probe containing a video path consisting of a sensor. the trawl stroke from the water surface, a sensor and a photo over the trawl, an inLormation sensor under the trawl, an encoder, an emitter connected to the encoder output, and a synchronizer high-frequency output which is connected to the launch launch; information sensor over the trawl and with the sensor trigger input under the trawl, and kig; to frequency output - with WMO, E; OM launch sensor for the depth of the trawl bay: water surface and from the encoder inputs, and the outputs of said sensors are connected to to the corresponding inputs of the encoder, and reception and recording

acoustic path

a receiver and a decoding device connected in series as well; sweep generator, three recording signal drivers, the signal inputs of which are connected to the corresponding outputs of the decoder, and the control input of one of them is connected to the output of the scan generator, the input of which is connected to the synchronization output of the decoder, and the multi-pen recorder whose inputs are connected to the corresponding outputs Record shapers and second and third recording signal conditioners.

The drawing shows a structural diagram of the trawl probe.

The trawl probe includes a transmission path 1 and a reception-recording path 2,

Transmitting path 1 contains synchronizer 3, sensor 4 of the depth of the sweep from the surface of the water, sensor 5 of information above the trawl, sensor b info | emulation under the trawl, encoder 7 and emitter 8 .. High-frequency output of the synchronizer 3 is connected to the sensor trigger input

information above the trawl 5 and with the sensor start input b, and the low-frequency output with the sensor 4 start input of the depth of the trawl from the water surface and with one of the inputs of the encoder 7. The outputs of sensors 4-6 are connected to the corresponding device inputs 7, output which is connected to the radiator 8. Sleep-recording path. 2 contains .acoustic receiver 9j to the output of which a decoder 1 is connected; three recording signals generator 11-13, a sweep generator 14, a multi-input recorder 15, whose inputs are connected to the corresponding outputs of drivers 11-13, a 16-g sweep generator, whose input is connected to a teyho The synchronization data of the decoder 10, and you go with the control inputs of the drivers 2 and 13 of the recording signals.

Each record signal generator 1-13 provides a counter and pulses; a desirator connected with it, to one of the inputs of the coincidence circuits of which a signal from the device 10 is supplied,

The signal inputs of the drivers 11-1 are connected respectively to the three outputs of the decoder 10, and the control input of one of the drivers of the recording signals 11 is connected to the output of the generator of the sweeper 14, whose input is connected to the clock output of the decoder 10,

The device works as follows.

The synchronizer 3 generates a low-frequency synchronizing pulse which is fed to the start input of the sensor 4 of the depth of the trawl from the surface of the water and to one of the inputs of the co-cycling device 7. the output signal of which carry information about the accumulation of water in the zone of action of the trawl

Using the device 7, the incoming information is compacted, for which methods of frequency, time or other separation can be used.

Claims (1)

From the output of the device 7, the signal is fed to the radiator 8, with the help of which it is radiated into the water in the direction of the vessel with receiving and registering the first path 2 on it. On the vessel, the signal is received acoustically by the receiver 9 and divided by device 10 into individual signals information about the depth of the trawl from the surface of the water, about the accumulations of fish above and below the trawl, which are fed to the signal inputs of the formers 11-13, respectively, and about the time when the sensor was started. depths of the trawl from the surface of the water, which is fed to the input of scan generator 14 and to the input of generator 16. Scan generator 14 is a counting pulse generator whose frequency is stabilized by quartz. The multi-pen recorder 15 contains goebinki fixed writing electrodes (not shown in the drawing) to one of which the output of the imaging device 11 of the recording signals is connected. Since the distance of the trawl from the surface of the water significantly exceeds the limiting distances from which information above and below the trawl comes, the repetition frequency of the high-frequency clock pulse produced by synchronizer 3 is much greater, the check frequency of the low-frequency clock pulse is selected. The multiple sweep generator is a counting pulse generator whose frequency is stabilized by quartz and exceeds the oscillation frequency of the sweep generator 14 many times. how often does the high-frequency clock pulse produced by synchronizer 3 repeat? exceeds the low-frequency frequency of the clock pulse. As a result, with the help of the multiple sweep generator 16 and the recording signal shaper 12 and 13, voltages are supplied to all writing electrical circuits of the second and third combs of the multi-pen recorder 1. trawl 5 and from the sensor information under the trawl 6 and, as a consequence, to increase the resolution of the trawl probe. Thus, by introducing a coat sweep generator when the trawl is operating at any depth, a high quality of the display of the received echo sounder data on the trawl parameters and fish in its area of operation can be ensured (the operator can record the echo signals obtained in this way at any time: time: promptly evaluate and measure the trawl travel horizon, estimate the change in position of the trawl by depth, its distance from the ground, vertical opening of the trawl, etc.). Claims of the invention Trawl probe containing (a transmission path consisting of a trawl stroke sensor 1 from the water surface, an information source over the trawl, an information sensor under the trawl, an encoder, an emitter connected to the encoder output, and a synchronizer whose frequency output is connected with the information trigger start input above the trawl and with the information start input below the trawl, and the low-frequency output with the trigger input input of the trawl depth sensor from the surface of the water and with one of its devices; and the outputs of the said sensors are connected to the corresponding inputs of the encoder, and the private register path consists of; 1; Acoustic receiver and decoding device connected in series, as well as a sweep generator, three recording signal drivers, connected to the corresponding outputs of the decoder, and the control input of one of them is connected to the output of the sweep generator, whose input is connected to the clock output of the decoder Properties, and multi-pen recorder, the Koioporo inputs are connected to the corresponding outputs of the Record Shaper, which is different from THAT; In order to monitor the resolution of the trawl probe by changing the signal recording scale, a multiple sweep generator was inputted into it, the input of which is connected to the output of the synchronization of the decoder, and the output to the control inputs of the second and third signal conditioners. Sources of information taken into account in the examination 1.Treytag p, Hord W. aegenwartiges EntwickEungsstand U traseha -. artung. Protoko / e zur Fiseheretechnik, 1971, B. 12, 57, p. 3092. Averkiev V.P. Ship fishing and electronic navigation devices, L., Sudostroenie, 1972, p. 97102 (prototype).   i --- 2