JPS62123376A - Display system for ultrasonic underwater survey apparatus - Google Patents

Abstract

PURPOSE:To display the depth of signs of fish, by a method wherein a plurality of light emitting elements are successively scanned in the emitting timing of a survey ultrasonic pulse and the light emitting element at the position corresponding to the receiving timing of the survey ultrasonic pulse reflected to arrive is allowed to light. CONSTITUTION:The analogue display part 12 of LED or the like is constituted so that light emitting elements are arranged at the circular pattern positions 16 of a display position at equal intervals and each of them consists of three light emitting elements 12a-12c radially arranged and the element 12a, 12b, 12c respectively emit red light, yellow light and green light at the time of lighting. For example, the scanning speed along the circular pattern of the display position is set to about 100-200Hz and, therefore, each light emitting element looks so as to continuously light at a position where a signal is present. A depth range is set, for example, to 40 feet by a range switch 14 and displayed on the outer peripheral graduations position 16 of a circular pattern. By this constitution, the depth of schools of fish or the sea bottom is displayed by each light emitting element.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of Light Emission] The present light emission relates to an ultrasonic underwater sampling device that utilizes the emission #L'lt of ultrasonic waves emitted into water from a droplet target. More details aK relate to the display method of measurements of this food exploration device.

[Technical background of light emission]

Currently, two types of underwater exploration devices of the above type are in use. The first method is to rotate a disk using an electric motor, and in synchronization with the rotation, emit exploration ultrasonic waves m, that is, sonar pulses, which are reflected from the surface of water such as the sea or lake, the bottom of the water, the ylA group, etc. Received (!
L, L attached to the rotating disk according to its timing
Turn on a light emitting device such as an ED. Pressure is applied so that the rotational angular position of this lighting light emitter corresponds to the depth position of the exploration target underwater. This method of reading the depth position is carried out by providing a scale to the angular position of the bulge of the rotating disk.

For example, in such a motor type position,
At a depth range (approximately 9 m) (360 degree full scale display per revolution), the time it takes for a reflected sonar pulse to return from the target is, in full scale measurement.

9m71450m (transmission speed of waves in water at 15G) The mark is also 6.2 m s, and the round trip time of the sonar pulse is 1
2.4 ms, which means that the time required for one revolution of the motor (disc) is 12.4 rns, so a motor with a speed of approximately 4840 rpm (number of revolutions per minute) is required. Normally, it is extremely difficult to obtain such a fast-rotating electronic speed control motor under the current level of manufacturing technology, and it takes a lot of effort to light up the LED on the disk fixed to the motor shaft. Supply is a big problem. A mechanical brush method is used to carry out the ``turquoise force'', and due to the rotation of the sieve, the porosity becomes extremely poor compared to the ink-feet vermilion range. Even with the conventional magnetic induction type, the single force transmission efficiency is poor and the cost is high.

Therefore, ω, 120. 360. Adding an extra foot range 'a'lft to an exploration equipment equipped with a 600-foot floor-standing range Tt is not only a big technical problem, but even if it were solved, it would require a large manufacturing cost. This will result in an increase.

The second type of underwater exploration device is a digital type, so to speak, if the first type described above is an analog type. :
For example, it is displayed digitally with three digits. Reading is advantageous compared to the analog method in terms of the time and effort it takes to read the tiles, but on the other hand, if there are many reflective objects (fish mixed at various depths), it may not be possible to display them, and depending on the underwater conditions, At 12°F, it becomes extremely difficult to distinguish between the seabed and fish shadows.

[Self-weight of luminescence]

The purpose of this light emission is to retain the long PJrY of the above-mentioned conventional digital method and eliminate its drawbacks by providing recognition 1&& of the positional relationship of the analog method.

[Luminous mourning]

What is the percentage?

(b) In the digital method described above, the fish shadow or the depth of the seabed is displayed numerically using a light emitting element. At this time, for a plurality of fish shadows, each depth is displayed in a time-division manner.

In addition, the display by switching the depth range is tracked visually.

(b) In the above-described constant analog force type mode, the light emitting elements are arranged in a plurality of positions according to the exploration radius.

This placement pattern may be whip, horizontal or circular. Usually, it can be a circular pattern to correspond to the analog type. 2 or 3 at each light emitting element position in this pattern.
Alternatively, more groups of light emitting elements may be arranged, preferably at right angles to the direction of the pattern. These light emitting elements are turned on like a level meter depending on the size of the fish shadow.

(C) The above analog display and the above digital display are such that the light element positions corresponding to the valleys of the above pattern in the analog display are sequentially scanned, and the seven l! The depth position corresponding to the pattern in which the 9-2 indicator is lit at # is also given by the digital display.

The town hearing display may be given along with or independently of the above-mentioned fair display. This h] acoustic display method is a mode in which the acoustic rhythm or timbre is changed and displayed depending on the distribution state and size of fish shadows or the seabed.

[Example of light emission]

FIG. 1 shows the operation panel of the St wave underwater exploration device according to a preferred embodiment of this light emission. The analog display LEDs, etc., and the cables 12 are arranged in 16 equally spaced circular patterns ttiK in the display m1OK. In this implementation row, the light emitting elements are three light emitting elements 12a arranged radially.
It consists of s 12 b s 12 c. In the L example,
The inner light emitting element 12a emits red light, the middle light emitting element 12b emits yellow light, and the outer light emitting element 12c emits light when the outermost light emitting element 12c is turned on. In this embodiment, the depth range is set to OFF feet IC by the range switch 14, and the light emitting element position *IC5 (feet) for the second scanning is 4 as shown by the circular pattern with outer circumferential scale tK16. 10 (feet) is placed at the th light emitting element position, fiK15 is placed at the 6th original ft element position.
r feet), 21J (feet) is at the light emitting element position in the 8th column, and tK25 (feet) is at the light emitting element position in the 10th column.
Or, (capital) (feet) is placed at the light emitting element position on the 12th scan.
35 () is displayed at the light emitting element position in the 14th scan, and 0, that is, the off (feet) position is displayed at the light emitting element position in the 16th scan. The units of this scale 16 are changed and displayed according to the depth range set by the switch 14, or are given by conversion. The figure shows the units for a depth range of 40 feet, which is set for convenience. In the figure, there are 16 light emitting elements arranged in a circular pattern, so the sounding resolution is 40/16 feet. In this embodiment, the quantitative speed along the circular arrangement of the generating element position fl12 is set at 100 to 200 Hz K, so that the signal appears to be lit continuously at a certain position. In the figure, the light emitting element 12a lights up at the 10 foot position, and the light emitting element 12a lights up at the 15 foot position.
12 b blinks, and the light emitting element 12 at the additional foot position
A is subtracted, and at the 5th foot position, the light emitting elements 12a, 12
b lights up, and at the 27.5 foot position, the light emitting element 12
a lights up and %12b flashes, at the + feet position, light emitting element 12a lights up and %12b and 12c flash, and at the 0 (40) foot position, three light emitting elements 12
a, 12b, and 12c are blinking. Second light emitting elements 18 are arranged in the same manner inside the circular pattern of light emitting element positions. One of these is provided for each of the 1st to 16th positions. This light emitting element positive value is displayed in three digits as 25.0 feet in the digital display 21JC, giving a correspondence between the analog display (based on the light emitting element 12) and the analog display (based on the light emitting element 12).

That is, in the automatic mode trap, the light emitting element 18 is slowly rotated and scanned, and when the light emitting confectionery 120 comes to the illuminated position, a digital display is provided on the narrow display of the seventh light emitting device. This light emitting element 18 can also be scanned manually, and in the case of 7, the position set by TIMJ operation [1
Provides digital display of depth of 2. Everyone, three light emitting elements 12 a * 12 b e 12 c of ff1112
gives a color indication of the intensity of the reflected pulse, lighting 12a, simultaneous lighting 12a and 12b 12a + 12
The simultaneous lighting of b * 12 c represents the strength of seven. Element 12a.

Since the colors of 12b and 12c are different, the number of measurement paths becomes stronger.

The knob ρ has the on/off function of the 14L source and also the sensitivity level. To turn on the switch, pull out the knob to enter alarm setting mode, with the minimum position being 000 and the maximum position indicating the maximum value according to the set depth range. The switch control controls the scanning of the light emitting element 18, and rAUT
At the OJ position, the elements 18 are arranged circularly at a certain speed.
KG means scanning. During the implementation, the rotation scanning speed was 1 step, 065 seconds (1 rotation 8
seconds).

Depart with a diagram! The lighting position of the element [12 is 10, 15. The second light emitting element position 18 is lit at the 5th foot position.

Therefore, 1121 scans are sequentially performed from the digital display state of 25.0 feet, and the digital display due to lighting of the light emitting element 18 at the foot position of the element 12 is 30.0±.
1.25 feet of fllL. Next, this knob 2
If you turn it to 6 and set it to manual mode, it will be about 1 to 16i! i
The lighting of the light emitting element can be arbitrarily moved up to y1. In this case, it is also possible to add a function to change the speed of the automatic scan in step 3. Switch A is a slide switch for turning the alarm on and off, and Switch A is a slide switch for changing the illumination light between day and night.

The second factor is the historical effect of the display method in Figure 1. Reference numeral 12 denotes an analog display section that shows the depth positions of a plurality of exploration objects or underwater objects in the form of a bar graph, which shows the depth positions from 1 to 1O, and therefore allows the set maximum depth to be set according to the depth range set by the switch 14. Depth divided into lO steps is shown. Four light emitting elements 12 are provided at each of the depth positions fi11-10.
a to 12d are provided, and the intensity of the reflected pulse is displayed in a graph. In other words, the analog display level'? depends on the strength of the reflected signal from the reflecting object. : Change. 1st
It is also possible to provide a color display in which the light emitting elements 12a to 12d'Y emit light in different colors as shown in the figure. In addition, a digital numerical value display section corresponds to the analog display position, and in this case, it is a four-digit display up to the first decimal point. For example, if the depth range in feet is set and the ratio analog display section 3 lights up, this means that a school of fish or another object exists at a position of 18 to 27 feet.

At this time, the digital display s20 can display a range of 18.1 to 27.0 feet. The wings are acoustic transducers that generate beep tones in response to both analog and digital displays.

Regarding the generation of such dip tones, the following case will be explained, for example. At this time, one scanning cycle period is given relative to the period of the echo pulse. At the start of this period, 10 is called "Pura"? :give.

Therefore, from one "pull" sound to the next "pull" sound, one scanning cycle period 'la: is given. This one scanning period corresponds to the scanning period of the analog display [1 to 101 in FIG. 2]. For example, if there are medium-sized and small-sized fish within the set depth range, the target will be two sounds, ``bin-pi'' for the medium-sized fish, and two sounds for the small fish, depending on the size of each fish. One sound 'p' for 'kl
In addition, the rhythm of the sound is displayed differently depending on the size of the fish shadow. The timing at which this sound is generated is within one scanning period, relative to the fish shadow depth position.

Of course, K is set so that this traveling period changes. For example, when there is a large reflection at only one place within the set range, as in the case of the ocean floor, a continuous sound consisting of three sounds such as "beep beep" is displayed. No matter what range is set, the reflections are all (
If there is no such thing, if the above-mentioned "pull" sound is repeated, then the depth of the ocean floor is greater than the maximum range. Therefore, by displaying the fish shadow or the depth (m) of the seabed using an audible signal, there is no need to constantly monitor the visible display, and since judgment can be made only by sound, a large number of external speakers can be installed at remote locations. It is possible to monitor multiple locations at the same time.

Figures 3A and 3B are circuit diagrams of one embodiment of a preferred ultrasonic exploration device that embodies the functions described above; Figure 3A is a receiving and transmitting unit, and Figure 3B is a display. Unit Y is shown. In this implementation row, the depth range Ya+ is divided into positions, and each position is made up of three light emitting element LEDs. Also, the one in Figure 3 is a sensor for measuring water temperature with terminals ■ and ■. It receives the input of H and displays it there.

This implementation row is a 4-bit micro 7o 7 length (CPU)
It is equipped with an IC-6'l-, which controls the operation of almost all the circuits. That is, a transmit pulse is generated,
This pulse 'kQ4 to Q7 is applied to a power amplifier. The amplified signal from the receiver circuit is converted to depth and provided to a display.

The transmitter circuit operates at 200 MHz, which is half of the CPU's reference clock frequency.
It is designed to transmit KHz pulses.

The pulse period is independent of the depth range unit (500 m5, and the power amplifiers Q4 to Q7 are connected to the signal Y32 from the CPU.
jw width to 0 pp v.

The receiver 18 circuit is Q, 1. Q2. Q3, which receives and amplifies the reflected signal with an ultrasonic transducer. ICI(MC
1350P) controls the gain of the entire circuit. The configured reflected signal is divided into three levels by a level comparator (IC6). The levels differ by approximately 6dB5.
It is designed to. 1m of reflected signal! and level intensity data are given to the CPU.

Depth levels and depth values stored in the CPU's RAM are displayed in both digital and analog form. All scales of each range have steps from 1 to addition, and the LED displays the data of that scale sequentially in the analog display RAM.If the maximum value is equal, the LCD display (FS
D-8009PH) displays it with three digits. C.P.
U's RAM receives alarm settings.

If the maximum value of the reflected pulse is equal to or lower than the set value, a pulse of 500 S is generated,
ll K is given, the buzzer sounds and “A” appears on the LCD.
LMJt point illusion S sell.

[Brief explanation of drawings]

W! Figure J1 is a diagram showing the display device k of the main emission-execution row, FIG. 2 is a diagram showing the display device k of the other execution row, and FIG. 3 is a diagram showing the display device k of the actual FIA train row. FIG. 2 is a circuit diagram of the sound technology underwater exploration device. In the figure, 12 is an analog display section, 12at 12bs
12c indicates a transmitter, and 12c indicates a digital display section. Agent Masumushi Water 1) Takesanbu Figure 1 Figure 2

Claims (3)

[Claims] (1) Light-emitting elements are arranged corresponding to a plurality of depth positions, and the light-emitting elements are sequentially scanned from a predetermined position at the timing of emission of an exploration ultrasonic pulse, and the exploration ultrasonic pulse is reflected and arrives. A display system for an ultrasonic underwater exploration device configured to light up a light-emitting element at a position corresponding to the reception timing of. (2) In the display system for an ultrasonic underwater exploration device according to claim 1, each of the light emitting elements corresponding to each of the depth positions is configured as a set of a plurality of light emitting elements, and the light emitting device The above-mentioned display method, wherein the number of lit light-emitting elements in the set of elements varies according to the reception level of the reflected ultrasonic pulse. (3) In the display system for an ultrasonic underwater exploration device according to claim 2, the set of light emitting elements emits light of a color corresponding to a reception level of a specific received level of the reflected ultrasonic pulse. The above display method is characterized by comprising an element.