SU1050947A1 - Apparatus for recognizing the type of moving cars - Google Patents

Abstract

1. THE DEVICE FOR AN EXPANSION OF THE TYPE OF DUIZHIKHIKYA VAGODA, co; There are two sensor paths associated with the inputs of corresponding probes of pulse formers, two impulse counters, two delay lines, one of which is connected to the output of one pulse former, and the output is connected to the input of one impulse counter, and a car counter, different in that In order to expand its functionality, it is equipped with a clock pulse generator, one input of which is connected to the output of a single delay line, a frequency divider, and its input is connected to the output of the clock generator pulses and the second input of the pulse counter j and the output are connected to the first input of another pulse counter, the second input of which is connected to another input of the clock generator, an arithmetic division unit connected by the first input to the output of the single pulse shaper, the second input to the output of the other delay line, the third input to the output of the clock generator, the fourth input to the output of one pulse counter, the fifth input to the output of another pulse counter, the sixth input to the output of another photo worldspeaker, two blocks of simple memory, the first of which is connected by its input to the output of the arithmetic division unit, and the second one to the input of the car counter, a register whose first input is connected to the output of the arithmetic division unit, the second input - to the output of the first block memory, the third input is to the second input of another pulse counter, and the output is to the input of the second (L block of the permanent memory, the car end detecting unit, the first input of which is connected to the output of one pulse generator c, the second input to the output of the register, the third input to the output of the second block of the permanent memory card, and the output to the third input of one and the second input of the other pulse counter, with the input of the other delay line connected to the output of one form 4: the pulse bodies, and the third input of the other to the pulse counter is connected to the output of one delay line. t 2. The device according to claim 1, that is, the block of determining the end of the car contains a delay line, the input of which forms the first input of the block determining the end of the car, the logical element I, the first input of which is connected to the output of the delay line counter, the first input which is connected to the input line for

Description

the second input is with the output of the logic element I, the decoder, the input of which is connected to the output of the counter, the comparison unit, the first input of which is connected to the output of the decoder, the second and third inputs of section 10509 A7 expand the second and third inputs of the car end detecting unit, and the output connected to the second input of the logic element AND forms the output of the block for determining the end of the car.

The invention relates to railway transport, in particular to automation devices that perform automatic identification of rolling stock, and can be used in automated H1X rail transport control systems. A device for recognizing the type of moving cars is known, comprising two track sensors associated with the inputs of the respective pulse drivers, two pulse counters, two delay lines, one of which is connected to the output of the pulse shaper, and the output is connected to the input of one However, the known device does not provide for counting multiaxial surges (1.2, 16, 28, 32 axles), a car with an odd number of axles and a different number of axles in the car relative to the axis symmetry e on the frames. The purpose of the invention is to expand the functional capabilities of the device. The goal is achieved by the fact that a device for detecting the type of moving cars contains two track sensors associated with the inputs of the corresponding pulse shapers, two pulse counters, two delay lines, one input of which is connected to the output of one pulse shaper, and the output connected to the input of one pulse counter, and the car counter, is equipped with a clock pulse generator, one input of which is connected to the output of one delay line, a frequency divider whose input is connected to the output of the generator clock pulse and the second input of one pulse counter, and the output is connected to the first input of another pulse counter, the second input of which is connected to another input of the clock generator, an arithmetic division unit connected by the first input to the output of one pulse shaper, second input to the output another delay line, the third input to the output of the clock generator, the fourth input to the output of one pulse counter, the fifth input to the output of another pulse counter, the sixth input to the output of the other The first pulse generator, two blocks of permanent memory, the first of which is connected to the output of the arithmetic division unit by its input, and the second output to the input of the car counter, the register whose first input is connected to the output of the arithmetic division unit, the second input to the output the first block of the permanent memory, the third input - to the second input of another pulse counter, and the output - to the input of the second block of the permanent memory, the block determining the end of the car, the first input of which is connected to the output of one pulse former s, vhodk second register output, the third output of the second block vhodk nonvolatile memory, and an output - to the third input and a second input of the other pulse counter; 31 (00, another delay line is connected to the output of one pulse generator, and the third input of the other pulse counter is connected to the output of one delay line. In addition, the car end detecting unit contains a delay line, the input of which forms the first input of the car end detecting unit, logical element, the first input of which is connected with the output of the delay line, the counter, the first input of which is connected to the input of the line eadrykn, and the second input with the output of the logical element And, the decoder, whose input is connected to the output of the first input to which is connected to the output of the decoder, the second and third inputs form the second and third inputs of the car end detecting unit, respectively, and the output connected to the second input of the logic element I forms the output of the car end detecting unit. Fig. 1 shows a block diagram of the proposed device;; Fig. 2 shows a block diagram of a unit for determining the end of a car. The device contains two sensors 1 and 2 installed on the track, the distance between which is shorter. connected to the corresponding sensors via amplifiers 3 and A two formers 5 and 6 pulses, delay line 7, counters 8 and 9 pulses, 10 clock pulses generator connected to frequency divider 11, delay line 12, dividing unit 13 connected to the first block 14 of the constant (Memory and register 15 and the second block: 46 of the permanent memory connected to the counter 17 of the cars and the block 18 for determining the end of the car. / The block 18 defined (the end of the car’s end) contains a delay line 19, the output of which is connected to the first inlet. for a logical element And 20, median with the counter 21, the output of which is connected to the decoder 22 and the block 23 of the comparison. The operation of the device is based on calculating the absolute values of the spacing of wagons with the exception of the effect of the magnitude of the speed of movement on the result of the calculation, recognizing by them the type of moving car, determining the number of wagons by the number of axes in each of them according to its type. The device works as follows. In the initial state, when there are no cars, the signals at the outputs of the formers 5 and 6 pulses, delay lines 7 and 12 correspond to zero, the contents of the counters 8 and 9 pulses and counter 21 are zero, the generator 10 clocks pulse is blocked, the output signal of the arithmetic divider 13 as well corresponds to a zero level. In the first block 14 of the permanent memory, constants are entered characterizing the center distance of all types of cars. In this case, all bits of register 15 are in a single state, and in the second block 16 of permanent memory codes are stored that characterize possible states of bits of register 15 during the passage of each of the installed types of cars. The contents of the counter 17 cars is zero, and the signal on the fourth you-. block 18 determining the end of the car, i.e. at the output of the comparison unit 23, corresponds to the zero level. With the passage of the first wheelset of a moving car over the first sensor 1, the latter generates a pulse, which after amplification arrives at the input of the driver 5 pulses. The latter forms at its output a rectangular impulse that goes to the first inputs of the arithmetic division unit 13 and the car end determination unit 1B, as well as to the inputs of the delay lines 7 and 12. On the negative front of the pulse, in the arithmetic unit 13 of the division, the contents of the counter 8 impulses are entered at its fourth input. The delayed rectangular pulse from the output of the delay line 12 is fed to the second input of the arithmetic division unit 13 and a negative front initiates the start of the division operation. Since the contents of the counter 8. is zero, the result of the division is also zero. Therefore, the signal at the output of the arithmetic unit 13 of division is absent. The output G of the imaging unit 5 impulses is fed to the first input of the car end detecting unit 18, arriving at the first input of the counter 21 and the input of the delay line 19, as a result of which the contents of the counter increase by one. From the output of the delay line 19, a pulse arrives at the first input of the AND gate 20, which is closed at its second input by a zero level signal from the output of the comparator unit 23. 5 The contents of the counter 21 are fed to the input of the decoder 22, which transforms it into an output code that arrives at the first input of the comparator unit 23. From the output of the delay line 7, the rectangular impulse goes to the first and third inputs of the counters 8 and 9, respectively, of the pulses, driving them along the negative front to the zero state, and also to the first input of the generator 10 clock pulses, starting it. Square pulses from the output of 10 clock pulses are fed to the second input of the counter 8 pulses which perform their counting, and to the third input of the arithmetic division unit 13 for synchronizing the work of the latter when performing the division operation. A frequency divider 11 reduces the pulse frequency of the generator of 10 clock pulses by a number of times equal to the absolute value of the distance between sensors 1 and 2.. The pulses from the output of the frequency divider 11 are fed to the first input of the counter 9 pulses, which counts them. The contents of the pulse counter 9 are fed to the fifth input of the arithmetic division unit 13. When passing over the sensor 2 of the first.wheel pair of the carriage, a pulse signal is produced, which through the y, silica 4 is fed to the input of the driver 6 pulses. The latter forms, at its output, a flat angular pulse, which is fed to the sixth input of the arithmetic division unit 1, and on the negative front of this pulse, the contents of the pulse counter 9, which is a division, are entered into the arithmetic division unit. Upon further movement of the car in the direction of movement, the first wheel pair of the car leaves the zone of sensor 2, and the second wheel pair passes over sensor G. In this case, the device operates similarly to that described and the pulse counter 8 is entered into the arithmetic division unit 13. From the output-line 7 of the delay, the impulse goes to the inputs of the installation to the zero state of the counters 8 and 9 pulses. 7 From the output of the delay line 8, a pulse arrives at the second input of the arithmetic division unit 13 and initiates the work of the latter, which arithmetically divides the contents of the pulse counter 8, proportional to the first center distance, into the pulse counter 9, proportional to the distance between the sensors. Assuming that the speed of movement of the car for the time of passing the inter-axle distance is constant, and the selected ratio of pulse frequency to the inputs of counters 8 and 9, i, the division will be equal to the absolute value of the fixed center-line distance regardless of the speed of the car. Similarly, in the arithmetic unit 13, the absolute values of the subsequent axial distances of the car passing over the sensors 1 and 2 are calculated. The calculated absolute values of the axial distances of the car from the output of the arithmetic division unit 13 are fed to the input of the first fixed memory unit 14 and the first input register 15. In block 14 of the fixed memory, each value of the center distance (the address code of the memory cell) corresponds to a list of types of cars that have a given center distance, while in the selected memory cell in ex discharge its rows which identify interaxis distance The corresponding course addresses this memory cell units are stored, and the remaining bit rows zapisshayuts zeros. Thus, in each memory cell there is a binary word that uniquely identifies the types of cars that own the axial distance corresponding to this memory cell. The width of the input code of the first block 14 of the permanent memory is determined by the highest value of the center-to-center distance of the cars and the required accuracy of its calculation. The output code of the first memory block 14 is determined by the number of recognizable car types. When the arithmetic divider unit 13 divides into the input of the first unit 14 of the permanent memory, the output code corresponding to the absolute value of the fixed first axial distance, a code appears in its output in which the unit may be present in one or .HecKontsKHx its bits . In the first case, the recognition of the type of carriageway will occur at the first inter-axial distance. In the second case, I will not recognize the car type and it will continue for the next center distance until the output code contains only one of its bits. The output code of the first block 14 of the permanent memory receives ka the second input of the register 15, in which the masking of the input code is performed. In the initial state, there are units in all bits of register 15, which suggests the possibility of masking any code within a high-order bit. The initiating signal from the output of the arithmetic unit 13 dividing the first input of register 15 in the latter changes the state of its bits depending on the value of the output code / first block 14 of the permanent memory. In this case, the states of the register bits 15, to which the input code units are received, do not change at the same time as the remaining register bits are zeroed, i.e. The input code is masked. From the output of register 15, the values of its bits are fed to the input of the second block 16 of the permanent memory and the second input of the block 18 for determining the end of a car. In the second block 16 of the permanent memory, codes of various types of cars are stored, i.e. codes that have a unit in only one of their bits. Thus, in the second fixed memory unit 16, the car type is identified by comparing the incoming input code with those stored in the memory. If there are several units in the input code of the second block of 16 constant memory, then its output is zero, i.e. recognition of the type of car is not made. In the event that only one unit is present in the input code, a unit is present at the output of the second block 16 of the permanent memory, which means that the car type recognition was performed. 478 A single signal from the input of the second block 16 of the permanent memory is fed to the input of the counter 17 cars, the contents of which increase by one, as well as to the third input of the block 18 determining the end of the car. The code signal from the output of the register 15 can also be used to register the type of car in the respective devices. When a permanent signal of a single signal (car type recognition signal) appears at the output of the second block 16, the output code of register 15 is sensed by the second input by the block 18 of the car end determination, arriving at the second input of the compare block 13, the third input of which is received a signal from the output of the second block by 16 constant memory. The comparator unit 23 compares the code at the output of the decoder 22 with the code of the identified car type. If the actual number of axles passing over the first sensor 1 is not equal to the number of axles of the identified car type, then the output of the car end determination unit 18. There is a zero level signal indicating that the car end is not defined. When passing over the first sensor 1 of the last wheel pair of a vagot, the code of the actual number of traversed axes of the car at the output of the decrypter 22 coincides with the code at the output of the register 15, as a result of which the comparison unit 23 generates a single signal of the end of the car. A single signal from the output of the comparator unit 23 is fed to the second input of the 10-clock pulse generator, blocking it, as well as to the third input of the register 15, sets all its bits into a single state. . The single signal from the output of the comparator unit 23, coming to the second input of the AND 20-logic element, allows the first input to pass a signal from the output of the delay line 19, which resets the second input to the counter 21 to the zero state. Thus, the device returns to its original state and is ready to recognize the next wave that will begin when

the first wheelset of the next car above the sensor 1.

The proposed device makes it possible to recognize the types of cars by the number of axles, including those with an odd number of axles, with sufficient certainty. The use of the device at the loevol docking stations to reduce train stations at these points due to the automation of the wagon count.

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Claims (2)

1. “DEVICE FOR RECOGNIZING A TYPE OF MOVING CARS, containing two track sensors connected to the inputs of the respective pulse shapers, two pulse counters, two delay lines, the input of one of which is connected to the output of one pulse shaper, and the output is connected to the input of one pulse counter, and a car counter, characterized in that, in order to expand the functionality, it is equipped with a clock pulse generator, one input of which is connected to the output of one delay line, an hour divider; a pulse whose input is connected to the output of a clock pulse generator and the second input of one pulse counter, and the output is connected to the first input of another pulse meter, the second input of which is connected to another input of a pulse generator, by an arithmetic division unit connected by the first input to the output of one pulse generator , the second input to the output of another delay line, the third input to the output of the clock, the fourth input to the output of one pulse counter, the fifth input to the output of another a pulse meter, the sixth input to the output of another pulse former, two read-only memory blocks, the first of which is connected to the output of the arithmetic division by its input, and the second by its output to the input of the car counter, by a register, the first input of which is connected to the output of the arithmetic division, second the input is to the output of the first block of permanent memory, the third input is to the second input of another pulse counter, and the output is to the input of the second block of permanent memory, the unit for determining the end of the car, the first input of which is connected It is connected to the output of one pulse shaper, the second input to the output of the register, the third input to the output of the second block of read-only memory, and the output to the third input of one and the second input of the other pulse counters. The input of another delay line is connected to the output of one pulse shaper, and the third input of another pulse counter is connected to the output of one delay line. 2. The device according to claim 1, wherein the block for determining the end of the car contains a delay line, the input of which forms the first input of the block for determining the end of the car, a logical element AND, the first input of which is connected to the output of the delay line ^ counter, first input which is connected to the input line SU ..,. 1050947 are bold, and the second input is with the output of the logical element And, the decoder, the input of which is connected to the output of the counter, a comparison unit, the first input of which is connected to the output of the decoder, the second and third inputs form the second and third the inputs of the block for determining the end of the car, and the output connected to the second I input of the logical element And, ¹ forms the output of the block for determining the end of the car.