SU1163293A1 - Device for displaying geophysical information - Google Patents

Abstract

GEOPHYSICAL INFORMATION DISPLAY DEVICE containing a photo carrier controlled by an illuminator connected by its three inputs to outputs of a horizontal and vertical deflection systems and a modulator, a code analog converter, a single vibrator, a digital voltage divider, sensors of horizontal and vertical projections of the platform, a current sensor vertical coordinates, the first output of which the stroke is connected to the first input of the comparison circuit, connected by the output to the first input of the code-time converter, the second the stroke of which is connected to the output of the platform width sensor, characterized in that, in order to improve the accuracy of the display of geophysical information, two code-frequency transducers are entered into it, the first input of the first of which is connected to the output of the platform horizontal projection sensor, and the first input of the second output of the sensor of the vertical projection of the site, a reversible counter connected by the first input to the second output of the vertical sensor, the projection of the site, and the second input to the output of the second code-frequency converter, a sensor whose first input is connected to the output of the first code-frequency converter, the output to the input of the first converter is a code analog, the output of which is connected to the input of the horizontal deflector system of the illuminator, a crystal oscillator, the first output of which is connected to the second inputs of the code-frequency converter , the counter and the third input of the reversible counter, and the second output - with the third No. 1 inputs of code-frequency transducers, the second code-analogue transducer, whose input is connected to the output of the reversible counter and output Od 9 is connected to the input of the vertical deflector system of the illuminator, the sensor of the horizontal coordinate of the top at the viscous area, the output of which is connected to the third input of the counter, the sensor of the vertical coordinate of the site attachment, the output of which is connected to the second input of the comparison circuit , element OR, through which the code-frequency transducer outputs are connected to the first input of one-vibration. RATOR, the second input of which is connected to the output of the time converter and the input of the quartz pulse generator, and the output to the first input of the digital voltage divider, the optical density sensor of the image

Description

Neither the platform, the output of which the sensor connects the current vertical one to the second input of the digital deli- age is connected to the third voltage body, the output of which is connected. the input of the transducer is code - damage with the input of the modulator - the second one is m.

1163293

The invention relates to the geophysical prospecting of the HCKonaeNftix useful fields and can & t be used to display the results of geophysical, in particular, seismic exploration, information in the form of deep cuts and maps in isolines,

A device is known which is a drum photo builder with a matrix cathode ray tube (CRT). This device is characterized by high universality and allows to obtain almost any image due to the initialization of the points of the CRT matrix according to a specific program and exposure of the photocarrier moving in front of the screen of the D 3 tube.

A disadvantage of this device is the need for preparing, shaping and transmitting to build an excess amount of information for each matrix picture. This is due to the fact that at any moment in time each point of the matrix, even the one not participating in this construction, must be initialized (turned on or off) by a separate signal.

The closest in technical essence to the invention is a geophysical information display device comprising a photo carrier, a controlled illuminator connected by its three inputs to outputs of a horizontal, vertical deflection system and a modulator, a converter, a code analog, a single vibrator, a digital voltage divider, respectively , sensors of horizontal and vertical projections of the platform, the sensor of the current vertical coordinate, the first output of which is connected to the first input of the comparison circuit, subclustered output to the first input of the converter code-time, the second input

which is associated with a pad width sensor output.

In this device for image of continuous horizons of horizons, the entire area of the image carrier is divided into stripes whose width is equal to the maximum horizontal projection, determined by the capabilities of the controlled light source. At the same time, the parts of the reflecting horizon within each band should be approximated by straight lines. Photocell light is produced when the illuminator is moved repeatedly in the direction of the site within the selected band. The construction of the site is carried out sequentially, as the vertical coordinate of the center of each site increases due to displacement. photocarrier or illuminator C2.

The disadvantages of the known device are: a decrease in the accuracy of the display of geophysical information due to the low accuracy of the docking of the vertices of the adjacent sites, since the coordinate anchorage of the sites is carried out along the centers of their upper sides, and not along the joined vertices, the pronounced dependence of the optical density of the sites on them length and slope, which reduces the quality of the displayed geophysical information, the effectiveness of the display of information is insufficient due to the use of only one qualitative geo- paradeter "compared to the ground area ..

The purpose of the invention is to improve the accuracy of the display of geophysical information.

This goal is achieved in that a geophysical information display device containing a photoconductor controlled by an illuminator connected by its three inputs t outputs of a horizontal and vertical deflection systems and a modulator respectively, a code analog converter, a single vibrator, a digital voltage divider, horizon sensors vertical and vertical projections of the site, the sensor of the current vertical coordinate, the first output of which is connected to the first input of the comparison circuit connected by the output to the first input of the The code-time generator, the second input of which is connected to the platform width sensor output, introduced two code-frequency converters, the first input of the first of which is connected to the horizontal platform projection sensor output, and the second input to the first platform vertical projection sensor output , a reversible counter connected by the first input to the second output of the platform vertical projection sensor, and a second input to the output of the second converter, a code-frequency counter, the first input of which is connected to the output of the first conversion The code-frequency body, and the output with the input of the first converter, the code is an analog, the output is connected to the input of the horizontal deflector system of the illuminator, a quartz pulse generator, the first output of which is connected to the second inputs of the codefrequency generator, the counter and the third input of the counter: counter and the second output is with the third code-frequency converter inputs, the second code-analog converter, whose input is connected to the output of the reversing counter, and the output is connected to the input of the vertical deviation of the control system The child body, the horizontal coordinate sensor of the top of the anchor of the site, the output of which is connected to the third input of the counter, the vertical coordinate sensor of the location of the anchorage of the platform, the output of which is connected to the second input of the comparison circuit, the element OR, through which the outputs of the code-frequency converters are connected to the first input one-shot, the second input of which is connected to the output of the code-time converter and the output of the quartz pulse generator, and the output to the first input of the digital voltage divider, the optical density sensor from site mapping, whose output is connected to a second input of the digital voltage divider whose output is connected to the input of the modulator, a second output current vertical coordinates of the sensor is connected to the third input of the time-code converter. Fig, 1 shows a functional diagram of the device; at 4 "g. 2 is a fragment of an image of a reflecting horizon or contour. The display device for geophysical information (Fig.) Consists of a sensor 1 of the horizontal coordinate of the site anchoring angle, a sensor 2 of the horizontal projection of the site, a sensor 3 of the vertical projection of the site, a quartz oscillator 4 pulses, the first 5 and second 6 code-frequency converters, counter 7, reversible the counter 8, the first 9 and second 10 converters are the code analog, the G1 sensor of the vertical coordinate of the platform anchoring pin, the sensor 12 of the first quality parameter of the pad determining its width, the sensor 13 in the second qualitative parameter of the site, which determines the optical density of its image, the current vertical coordinate sensor 14, the comparison circuit 15, the time converter 16, the OR element 17, the one-oscillator 18, the digital voltage divider 19, the modulator 20, the horizontal 21 and the vertical 22 systems, a controlled illuminator 23, a photocell 24, while the control illuminator 23 is connected by its three inputs to the outputs of a motor 20, horizontal 21, vertical 3 deflection systems with The horizontal coordinate of the gadget of the site is connected to the third input of the counter 7, the outputs of the horizontal projection sensor 2 of the site and the vertical projection sensor 3 of the site are connected; with the first inputs of the first 5 and second 6 code-frequency converters, respectively, the third inputs of which are connected to the second output of the crystal oscillator 4 pulses, the first output of which is connected to the second inputs of the same converters and the third input of the counter 7, and the third input of the reversible counter 8; the output of the first 5 and second 6 converters of the codefrequency are connected via the element OR I 7 to the first input of the one-shot 18 and the second inputs of the counter 7 and the reverse counter 8, the outputs after the first 9 and second 10 converters of the code-dialog are connected to the inputs of the horizontal 21 and vertical 22 of the deflecting systems, respectively, the first output of the sensor 14 of the current vertical coordinate is coherence, dinene with the first input of the comparison circuit 15, the second with the third input of the code-time converter 16, the output d is connected to the second input of the comparison circuit 15 The ticker 11 is the vertical coordinates of the apex of the pad, the output of the pad 12 of the pad width is connected to the second input of the code-time converter 16, the first input of which is connected to the output of the comparison circuit 15, and the output to the input of the quartz oscillator 4 pulses and the second input of the one-shot 18, the output of which is connected to the first input of the digital voltage divider 19, the sensor 13 of the optical image density of the site is connected to the second input, and the output to the input of the modulator 20. Sensors 1,2,3,11,12 and 13, which are addressers register memory designed for receiving storing and dispensing j codes defining the position of the platform in the recording band (FIG. 2) and its quality parameters. The code converters 9 and 10 convert the current binary codes of counter 7 and reversible counter 8, respectively, to their voltage equivalents. The current code of the counter 7 is the instantaneous value of the horizontal coordinate of the platform point in the selected coordinate system (Fig.2), the current code of the reversible counter is the instantaneous increment value ±; SY of the vertical coordinate of the same point .. In the device for displaying continuous reflectors and from The entire area of the photonicity line is divided into stripes, as shown in Fig. 2, within which horizons and isolines are approximated by sites. The exposure of the photocarrier is carried out by multiple movements of the illuminator beam in the direction of the platform defined by its horizontal CdX) and vertical (l) projections within the band. The number of necessary displacements is determined by the width of area A. The width of the strip is equal to the maximum horizontal projection of the area determined by the capabilities of the controlled illuminator. The construction of the sites is carried out sequentially according to the measure of increasing the vertical coordinate of the top of the anchor of each site of movement of the photocarrier or illuminator. The distance between the said apex of the pad and the edge of the strip is defined by the horizontal coordinate X. After recording all the sites of one strip, the carrier or illuminator moves along the horizontal axis by the width of the strip. Then, in the same way, keeping the directions of the X and V axes of the selected coordinate system unchanged, the areas of the next lanes are constructed. The image fragment of the imaging horizon or the distance gap (; FIG. 2) contains two recording bands of width; 1, within which is shown an example of placement of three sites 25-27. The vertices of the coordinate anchors can be either on the right or on the left side of the pads. FIG. 2, they are selected from each site on the left side and set. coordinates relative to the Y axis “0” and the conditional axis coinciding with the left border of the strip containing the imaged area. In accordance with FIG. 2, the top of the anchor of the site 25 has the following coordinates Y, Xi, “0, HF, 4Y ,; pads 26 - Y, X2 O, DH, uY2; pads 27 - Yj, X, ЛХз, -4Y3. In the device, a sequence of codes at the output of counters 7 and 8 provides for the output of t converters 9 and 10 of synchronous stepped sawtooth signals. The deflecting systems 21 and 22, in accordance with these signals, provide the formation of stresses of the sweep of the beam of the controlled illuminator 23 horizontally and vertically. If CRT is used as the illuminator as the preferred option, the sweep voltage is applied in a known manner to the corresponding deflecting plates; from the output of the system 21 - to the

71

CRT horizontal deflection tines, and from system 22 output to vertical deflection plates, a CRT beam. The resulting trajectory of the beam on the CRT screen is determined by the steepness and amplitude of the saw-tooth sweeps, and due to the stepwise nature of these stresses, it has a discrete appearance.

The controlled ignition (cooling, fabrication) of the beam of the illuminator 23 is provided by the modulator 20. In the case of using a CRT, a signal from 20 is fed to the modulator of the brightness of the tube beam,;

In the device, the illumination beam 23 is ignited for a certain length of exposure time tj immediately after each discrete movement of the beam to a new position. This is done with the help of a single vibrator 18, which includes a modulator 20. The luminous flux of the controlled illuminator 23 exposes the photo carrier 24, depicting on it a line of a given inclination and length. Upon completion of one scan cycle, i.e. images of one line, the converter of the site projections into the slope. and length (PSAP), made in the form of a crystal oscillator 4 pulses, first 5 and second 6 code-frequency converters, counter 7, reversible counter 8, first 9 and second 10 converters code-analog , ensures that the illuminator returns to the initial point.

Then, by moving vertically the controlled illuminator 23 or the photocarrier, the projection of the beam source point onto the photocarrier is shifted by one sampling, and the beam scanning cycle is repeated. The photo carrier shows the second line, adjacent to the first. Then everything repeats, thereby forming the imaged area over the bus-. rye.

Due to the use of discrete sweep of the beam in the device, it is possible to implement PNDS using digital methods of signal conversion, switching to analogue form only at the input of the rejection systems 21 and 22. This will maximally eliminate the instrumental nonlinearities introduced into the displayed information by similar schemes that are known to the device and increase display accuracy.

632938

In addition, a discrete sweep and light trigger of the illuminator simplifies the adjustment of the optical density of the image of the site, comparing J using continuous exposure of the photocarrier. The immobility of the beam between its adjacent discrete positions, ceteris paribus, increases the exposure time.

0 each illuminated point of the stockholder. This allows in the proposed device to choose i for any position of the beam constant and optimal for a pair of light carrier

f5 Due to this, the dependence of the optical density of the image of sites on their length and slope is significantly reduced, which improves the quality of the displayed geophysical information.

20 Sensor 14 of the current vertical coordinate of the site is designed to obtain the numerical value of the Y coordinate (relative to the Y axis. O, FIG. 2) —the position of the point projection.

25 of the light beam of the illuminator 23 to the photonics 24 in the process of their mutual displacement. In the device, the sensor 14, by special reference marks i, is rigidly connected to the photo carrier 24,

3Q with continuous movement of the latter

sync pulses are generated in front of the CRT screen. These sync pulses are counted by a binary counter located in sensor 14. The meter is installed according to the label corresponding to the coordinate. Then, within the working area of the recording of the photocell 24, at the output of the sensor 14 there is a binary code of the current

lp coordinates of the projection of the point of rest. beam 23 to a photo carrier 24, which is fed to the first input of the comparison circuit 15.

To the second, the input of the circuit 15, 5 binary code is supplied from the sensor 11 of the vertical coordinate of the anchor tip (in accordance with FIG. 2) of the area to be displayed. Moreover, each single value of this code is associated with one sync pulse of sensor 14. Thus, the problem of coding the coordinates of anchoring areas, as well as the implementation of the comparison circuit 15, is simplified.

5 The implementation of the coordinate location of the sites at their vertices (sensors 1 and 12), which are the docking points of the adjacent sites, together with the high linearity of the digital transformations performed by the PNDD, improves the accuracy of the display of geophysical information. When the counter of the sensor 14 reaches the value of the binary code of the required coordinate specified by sensor P, a signal is turned on in the {path of the comparison circuit 15, which turns on the code-time transducer 16. At the output of the converter, there is a strobe-pulse with a duration corresponding to the binary code of the sensor 12 of the first qualitative parameter of the site, which determines its width. For this, the code-time converter 16 is designed as a binary counter with parallel recording of the source data. According to the signal from circuit 15, the binary code from sensor 12 is written to the indicated 1st counter of converter 6. The appearance at the output of this counter of a non-zero code opens the corresponding input circuit AND, allowing reception from the sensor 14 of clock pulses (FIG. 2) generated by reference marks of the moving photopath 24. Dp simplify the implementation of the device, the width of the pads is encoded in the same way as the vertical coordinates. When applying the clock pulses of the sensor 14 to the subtracting input of the counter of the converter 16, as the photocarrier moves, the reading of this counter decreases. As soon as it becomes zero, the input circuit AND converter 16 is closed. As a result, the arrival of synopulses at the counter input will stop, and the output of converter 16 will complete the formation of a strobe pulse with a duration corresponding to the binary code previously received from sensor 14. The strobe pulse from the output of converter 16 is the enable signal of the single-oscillator 18 and quartz oscillator 4 pulses (FIG. 1 SHSD. After switching on the generator 4, two sequences of pulses are formed at its outputs. At the second output, the pulses are C with a period T determined by the sweep time at maximum value, Dp simplify control in the proposed device vibrano jjX, otKc, (Fig.2), T is the period of the sweep of the beam to the recording bandwidth. At the first output, the reference pulses C with the period t are T / 2, where n is the number of binary bits codes AX (4U). According to the first C, the binary code from sensor 1 of the horizontal coordinate of the site anchor vertex is copied to binary counter 7 with parallel recording of information. In accordance with the indication of the counter, the code-analogue is immediately processed by the system 21 etc. The beam of the illuminator 23 is introduced from the point of rest to the starting point of the record with coordinates, such as He and. 2). The point of rest of the beam is derived in the Y coordinate by moving the photocarrier in front of the CRT screen. By the C pulse, the 4Y sign from the platform vertical projection sensor is rewritten into the reversing counter 8. The latter contains the actual D-reversing counter, as well as the sign code of the YU. The signal from the output of this trigger connects to the Second input of the reversible counter 8 either to the summing + 4Y or to the subtracting - uY input of the binary reversing counter. Simultaneously with the writing of the code for the sign of the remote control, the triggers of this counter are reset to 0. In contrast to the 4Y, dX is always positive, which is caused by the selected method of image sites (figure 2) in one direction, from left to right. This simplifies the coding of sites and the implementation of PPSDs. Overwriting code X from sensor 1 to counter 7 needs to be done on every Sioux, i.e. for each scan cycle of the beam during the formation of the site width, since there is no additional memory for storing the X code. As a result, for each C, the beam of the illuminator 23 returns to the desired recording point of the next line of the site with the coordinate for the previously selected example: ZK Y3 + d (kl) or zk 3 + TV (kl), where the index is 3k, the coordinate of X and Y of the source point of the k-th line of the site 27 (k - 1,2,3, ...); V is the linear velocity of the photocarrier (axis veteran); d (k-l) is the increment value of the Y coordinate for the k-th li-g of the scientific research institute of the site 27 when the photocarrier 24 is discretely moved (or illuminate the bodies 23); TV (k-l) is a similar magnification with continuous movement of the photocarrier 24 (go to the illuminator 23). In the proposed device, in order to unify the control and simplify the implementation, the second option is chosen. On the leading edge of each CUf, code-to-frequency converters 5 and 6 are also reset to zero state. The latter are software-controlled frequency dividers with variable division factor. Binary codes defining the solution program from horizontal sensors 2 and vertical j projections of the platform are supplied to the second inputs of converters 3 and 6, respectively. Cu with a period t, synchronized with C, arrive at their first inputs. As a result, the output of the converter 5 (6) for the period T directly is proportional to — the value of aX (4Y) produces N impulses, N РТ + Pi-2 + P -24 ... + p. -2% ... + P (n-1) -2 (n-where R. is the i-ro bit value (O or I); n is the number of binary bits in the 4X code (4Y). Thus, the pulse frequency at the output of the converters is 5 and 6 is also proportional to the DQ and Y codes, respectively These pulses increment the readings of counter 7 (starting with code X) and the reversing counter 8 (starting with 0) if the sign of AY is positive. With a negative sign of 4Y, the same impulses. and a reversible counter. In this case, a reverse code is generated at the output of the latter. The readings of counter 7 and reverser of the first counter 8, received at the input of the converters 9 and 10, respectively, of the code-analogue, are converted at their output into synchronized step sawtooth-like voltages. As a result, by deflecting systems 21 and 22, these voltages are controlled by the sweep of the beam of the illuminator 23 in the direction of the displayed area. Thus, the device converts the binary codes of the site projections into its slope and length. The presence of a direct code at the output of the reversible counter 8 corresponds to a positive slope of the site (pad 23 and 26), and the presence of a return code corresponds to a negative slope (pad 27). Each pulse from the output of converters 3 and 6 through the OR circuit 17 is fed to the first input of the one-shot 18 connected to the second input of the gate from the output of the code-time converter 16. Given the fact that the output pulses of the converters 3 and 6 are synchronized support-. pulses from the output of the generator 4, the number of M at the output of the circuit I7 is automatically limited. Moreover, the left limit corresponds to the image of a point, and the right one - to the largest sweep of the illuminator beam in any direction within the limits from plus iY to minus AY with (figure 2). The pulses of the circuit OR the I8 one-shot vibrator in turn produces short pulses that, through the digital voltage divider 19 and the modulator 20, light the beam of the illuminator 23, thereby exposing the photo carrier 24. As a result of this process, each new position of the beam scanner of the illuminator, and hence the pad element on the camera is marked with a dot. The dimensions of this point in the proposed device are controlled by adjusting the duration of the output pulses of the one-shot 18. When building depth cuts and maps in the isolines to improve the efficiency of interpreting the results of the display, it is advisable to distinguish another qualitative geophysical parameter using the characteristic features of the site images. So, in the form of a platform width, the power of the reflecting horizons or the reflection coefficient can be displayed. The procedure for the formation of platforms is indicated by the width. In the device, in addition, you can use another quality

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a parameter, for example, a coefficient of rights similar to which the optical density of the image of a site is compared. The use of the second qualitative parameter of the plots contributes to an additional increase in the efficiency of the interpretation of the display results as compared with the known device. For this purpose, the sensor 13 of the second quality parameter, whose sensor is connected to the second input of the digital voltage divider 19, is introduced into the device.

Digital voltage divider 19 is a circuit based on, for example, a type ruler with keys and an output amplifier, which provides either a repetition of the input signal amplitude or its attenuation. The attenuation value is determined by the binary code at the divider control input and is implemented by changes in the transmission coefficient of the R-2R range,

As a result, the optical density of the image of individual points, and hence the entire area, due to a change in the amplitude of one-shot pulses.

The torus 18 at the output of the divider 19 will be variable and program-controlled from the sensor 13 of the second quality parameter.

The end of the image of the site is performed on the falling edge of the strobe pulse from the output of the code-time transducer 16. Thereafter, codes 1,2,3 |, 11,12, and 13 receive the codes defining the next site, and the indicated process of finding the location of the anchorage on the photo carrier and the image is completely repeated.

The device allows you to display

5 not only deep seismic

cuts and maps in isolines, but also seismic time cuts, various graphs by all known S imaging methods except

0 way density is variable ;, and alphanumeric lettering annotating the displayed picture. This is achieved by using the appropriate location coding (coordinates

5 X and Y), length and slope (projection 4X and aY), width and optical density (A and S) of elementary areas or points from which to build, the depicted picture.

Claims (1)

GEOPHYSICAL INFORMATION DISPLAY DEVICE, comprising a photo carrier, a controlled illuminator connected by its three inputs to the outputs of the horizontal and vertical deflecting systems and a modulator, a code-analog converter, a single-shot, a digital voltage divider, sensors for horizontal and vertical projections of the site, a sensor for the current vertical coordinate, the first output is .. the output of which is connected to the first input of the comparison circuit, connected by the output to the first input of the code-time converter, the second input is It is connected to the output of the platform width sensor, characterized in that, in order to increase the accuracy of the display of geophysical information, two code-frequency converters are introduced into it, the first input of the first of which is connected to the output of the sensor of the horizontal projection of the platform, and the first input of the second with the first output of the vertical projection sensor, a reversible counter connected by the first input to the second output of the vertical sensor, the projection of the site, and the second input to the output of the second code-frequency converter, counter, first the first input of which is connected to the output of the first code-frequency converter, and the output - with the input of the first code-analog converter, the output of which is connected to the input of the horizontal deflecting system of the illuminator, a quartz _Λ pulse generator, the first output of which is connected to the second inputs of the converter code-frequency, counter and the third input of the reversible counter, and the second output with third inputs of the code-frequency converters, the second code-analog converter, the input of which is connected to the output of the reverse counter, and the output is connected n to the input of vertical deflection of the illuminator system, the sensor horizontal coordinate vershish binding site, whose output is connected to the third input of the counter, the vertical coordinates of vertices sensor pad binding, the output of which is connected to the second input of the comparison circuit? OR element through which the outputs of the code-frequency converters are connected to the first input of a single-shot, the second input of which is connected to the output of the code-time converter and the input of a quartz pulse generator, and the output is connected to the first input of a digital voltage divider, the optical density sensor of the image of the site, the output of which connected to the second input of the digital voltage divider, the output of which is connected to the modulator input, the second output of the current vertical coordinate sensor is connected to the third input of the converter code - time