SU1765047A1 - Vehicle data reader - Google Patents

Abstract

Use: for controlling the movement of trains. The essence of the invention: contains: emitter and receivers, two elements of IL AND, three elements of AND, a counter, an amplifier, a receiving relay, a trigger, three resistors. 4 il.

Description

The invention relates to the field of railway automatics and can be used to control the movement of trains.

A photovoltaic device is known that contains an illuminator, a photo sensor, an amplifying circuit, and a control relay (1, pp. 110, 111, fig. 81. 82). A disadvantage of the known device is that it does not provide control over the release of the block section when the train breaks.

A device for reading information from a vehicle is known, which contains emitters and photodetectors installed in the path, connected to a logic circuit.

A disadvantage of the known device is that it does not allow control of the freedom of the track sections.

The aim of the invention is to extend the functionality by determining the freeness of the track sections.

The goal is achieved by the fact that a device for reading information from a vehicle contains emitters and photodetectors installed in the path, the outputs of the first group of the latter through one OR element are connected to one input of the second AND element, the other input of which is connected through the OR element to the second group of receivers the third group of which is associated with the information inputs of the counter, the counting input of which is connected to the output of the second element AND, and the output connected to the information processing unit additionally equipped with a pulsed and receiving relay connected with a rail line, a trigger, connected inputs through resistors with one pole of a power source and through respectively a front and rear contact of a pulse relay with another pole of a power source, and the other input through a resistor it is connected to one pole of the power source, and the rear contact of the receiving relay is connected to the other pole of the power source, and the output is connected to the installation input of the counter.

Comparative analysis with the prototype shows that the proposed device is distinguished by the presence of new elements of pulsed and receiving relays, a trigger, a counter, resistors and logic elements.

About SL

 9

ijb

VI

ment and their relations with other elements of the scheme.

Thus, the claimed device meets the criteria of the invention of novelty.

A comparison of the proposed solution with other technical solutions shows that pulse and receiving relays, triggers, a counter and an element of logic are widely known. However, when introduced in connection with the rest of the circuit elements in the inventive device for reading information from a vehicle, the elements show new properties, which leads to an expansion of functional capabilities. This allows us to conclude that the technical solution meets the criterion of significant differences.

An example implementation of the device.

A screen is attached to the frontal wall of the locomotive, the plane of which is located vertically along the train axis. On the one side of the path is the illuminator, on the other - photo sensors. When overlapping part of the light flux, part of the photosensors darken. A part of the cells is provided on the screen, carrying a control code in order to distinguish the random shielding of the light flux from the excitation of a specially manufactured screen. On all trains, control cells have the same location, while the rest carry information about the number of cars.

FIG. 1 shows the track devices; in fig. 2 shows a screen with control and information cells; in fig. 3 shows the location of the stationary optical devices and the screen; in fig. 4 is an electrical circuit of the receiver.

FIG. 1 shows impulse relays 1 and 6, receiving relays 5 and 10, respectively, with contacts 1.1 (FIG. 4), 5.1, 5.2 (FIG. 4), 10.1, 10.2; linear and track relays 11, 12 respectively with contacts 11.1 and 12.1; contact of the release monitoring relay 13.1 (winding is shown in Fig. 4), resistor 14, capacitor 15, power supply poles 16 and 17, traveling power sources 2, 4, 7 and 9; resistors 3 and 8. FIG. 2 1-16 numbers are numbered optical cells, which can transmit light or screen it. It should be noted that cells 1, 2, 4, 8., 16, 15, 13 and 9 are control (key) and have standard firmware (cells 1.4, 16 and 9 transmit luminous flux, and the rest do not let through) . One of the control cells has a narrowed aperture. This is done in order to read the information after centering the holes with respect to their optical axes (gating is performed - the middle part is highlighted). The remaining cells (3, 5, 6, 7, 10, 11, 12 and 14) in binary code carry information about the number of cars in the train. For trains of different lengths, screens with appropriate firmware are provided.

FIG. 3 shows the illuminator 20, the locomotive 21, the screen 22, the photosensors (photoresistances) 23-26 (23 corresponds to a column of the screen 1, 5, 9 and 13).

FIG. 4 shows the connection diagrams of photoresistors 27 (photoresistor FSK-27.1 and amplifier 27.2), 28, 29, and 30, cross-board 31 (left and right like terminals connected to each other), logic elements 32, 3, 34, counter 35 (3, p. 218, Fig. 11-11, p. 221 (Fig. 11-13), amplifier 36, release control relay 37, resistors 38, 39, 42, logic element 41, and power supply poles 43 and 44.

The operation of the circuit proceeds as follows.

When the train moves from right to left, the receiving relay 10 is turned off (Fig. 1), and linear relay 11 follows it. At the same time, contact 11-1 de-energizes the track relay circuit 12. The latter is reset from the lock (contact 12.1). The excitation of the track relay 12 can occur with the control of the freeness of the sections that are controlled by the relay 5 and 10; provided that a de-energization and subsequent excitation of the release monitoring relay 13.1 occurred. In this case, the capacitor 15 is charged and provides the excitation of the track relay 12, which is then self-blocked by contact 12.1. Relay 1 is energized as each car passes. The size of the insulated rail is chosen in such a way that the relay 1 is de-energized when the geometric center of the car is located above the middle of this rail. It should be noted that when following a locomotive without cars, the relay 1 is not de-energized under the middle of the locomotive, since locomotive trucks are located close enough to each other. When the train moves, there is one more excitement, the number of cars in the train,

Entering the screen 22 (Fig. 3) under the beam of the illuminator 20 leads to the fact that some of the photoresistances (FS1-FS6) are shaded, and some of them are irradiated by the luminous flux, and some combination of logic signals appears at the outputs of circuits 27-30. 0 and 1. Part of the photosensors (1, 2, 4, 8, 16, 15, 13, 9) are associated with logic elements 32 and 33. Logic 1 appears at the outputs of both elements if the control cells are 1.4, 16 , 9 let the luminous flux pass (see the switching circuit of element 32 in Fig. 4), and the remaining control cells do not let it through (see the switching circuit of element 33 in Fig. 4), wherein Logic 0 appears at the output of element 34 and counter 35 (a set of two ICs K155IE7, see p. 221 3) is switched to parallel recording mode from information inputs D. At the same time (at the beginning of screen input under the illuminator beam) at the output The borrowing of the counter 35 decreases the potential and by means of the amplifier 36 turns on the relay 37. The capacitor 15 is charged (see Fig. 1). When the train passes through the sections of the two rail circuits of the relay 1 and 5 (Fig. 1), pulses arrive at the counting input of the counter 35 from the output of the element 41 (Fig. 4). The process of subtracting from the contents of the counter, which was fixed using parallel inputs, passing the cars through the serial input (-1), begins. The trigger 40 is necessary to eliminate the influence of contact bounce 1.1, and contact 5.2 to eliminate the influence of the position of the shunt on one of the track circuits.

Analysis of the proposed device shows that it will allow monitoring the condition (occupation or freeness) of the track section of any length for any resistance of rail line insulation.

Claims (1)

The invention A device for reading information from a vehicle, contains emitters and photodetectors installed in the path, the outputs of the first group of the latter through one OR elements are connected to one input of the first And element, the other input of which is connected through the OR element to a second group of receivers, and a third group which is connected to the information inputs of the counter, the counting input of which is connected to the output of the second element I, and the output to the information processing unit, characterized in that, in order to expand and functionality by defining free ™ sections of the rail line, it is provided with a pulsed and receiving relay connected to the rail line, a trigger, connected inputs through a resistor with one pole of the power supply and, respectively, front and rear contacts of the pulsed relay with another pole of the power supply, and the output is with one input of the third element I, the other input of which is connected via a resistor to one pole of the power supply and through the rear contact of the receiving relay to the other pole of the source gyGy; and the output is connected to the installed input of the counter, and the outputs of the first element AND and the element OR are connected to the inputs of the second element I. with one ъ "Ъ 2 FIG. 20 Fig.Z U i UVS 1,5,3,13 EFS 2,6, W, / FS 3,7,11, f5  FSF, 8,12,16 FIG. four