SU1320107A1 - Device for determining static parameters of uncoupling on gravity hump - Google Patents

Abstract

The invention relates to automation and remote control devices in railway transport. The purpose of the invention is to increase reliability. The device contains, when track sensors 1, 2 and 3, the first block 7 for measuring time intervals, block 8 for calculating the length, second block for measuring time intervals, block 10 for monitoring the freedom of the measuring section, block 1 1 for monitoring the passage of the first carriage of the car, block 12 for monitoring passage of a second carriage carriage, memory block 13, carriage passage control unit 14 and block 15 of fixing the number of cars in the unhook. The determination of the static parameters of the uncoupling reduces to the determination of the length of the uncoupling as a whole, the number of cars in the uncoupling and their length, and the number of axles in the carriage of each car according to the travel time of the wheelsets in the fixed-length control section limited by sensors 1 and 2. 6 ml. 0) about it

Description

The invention relates to devices for automation and telemechanics on railway transport and can be used in systems for automatically controlling the speed of uncoupling on a slide hull for determining data about uncoupling.

The purpose of the invention is to increase reliability.

FIG. Figure 1 shows the functional diagram of the device for determining the static parameters of uncoupling on a sorting chamber; in fig. 2 - functional block diagram of the control of vacancy area; in fig. 3 - functional block diagram of the passage control of the first carriage of the car; in fig. 4 is a functional block diagram of the passage control unit of the second carriage carriage; in fig. 5 - functional block diagram of the passage of the car; in fig. 6 - a functional block diagram of fixing the number of cars in the unhooking.

The device contains three track sensors 1–3 mounted on the discharge part of the sorting chamber, with track sensors 1 and 2 limiting the measuring section of the track to a length not exceeding the shortest possible distance 4 between the adjacent axles of the carriage’s truck, and track sensors 1 and 3 limiting the measuring section 5 ways with a length not exceeding the shortest possible distance 6 between the extreme inner axes of the adjacent carriages of the car (the distance between the last axis of the first carriage and the first axis of the second carriage carriage).

The outputs of the track sensors 1 and 2 are connected to the corresponding inputs of the first time interval measurement unit 7, designed to measure the time taken for each section of the section to be detached, the length of the path equal to the length of the control section. In this case, the output of the first time interval measurement unit 7, for transmitting the measured time interval value, is connected to one of the inputs of the length calculation unit 8, the other input of which is connected to the output of the second time interval measurement unit 9, intended for measuring the time interval between the moments of passage of the first and last axle of the uncoupling track sensor 1, minus the total time spent by the first axis of the second bogie of each car in the uncoupler to pass the measuring section 5 put .

The unit 10 for monitoring the vacancy of the measuring section is intended for fixing the occupation and releasing the uncoupling of the measuring section 5 of the track and is connected by its first input to the output of the track sensor 3. also connected to the first input of the control unit 11 for the passage of the first carriage of the car

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following the first bogie of each car in the uncoupling track sensor 1.

The passage control unit 12 of the second carriage carriage, intended to fix the follow by the second carriage of each car in the pickup track sensor 3, is connected to the second input of the vacancy control unit 10, the third output of which is connected to the second inputs of the memory block 13, block 14 control of the passage of the car and block 15 fixing the number of cars in the unhooking.

One of the logical elements AND 16 performs the role of a controllable key, which has three inputs connected respectively to the output of the first track sensor 1, the third output of the control unit 11 of the passage of the first carriage of the car and the fourth output of the block 15 for fixing the number of cars, and output entered with the first entrance of the control unit 14 of the passage of the car and the third inputs of the blocks 11 and 12 of the control passage, respectively, of the first and second carriages of the car.

Another logical element AND 17 also plays the role of a controllable key, one of the inputs of which is informational and connected to the output of track sensor 1, and the other its input is controlling and connected to the first output of block 15 of the number of cars. The output of the logic element And 17 is connected to the fourth input of the block 14 control the passage of the car.

The vacancy control unit 10 includes an RS flip-flop 18, two-input logic elements OR NOT 19 and OR 20.

The first input of the block 10 is connected to one of the inputs (input S) of the RS flip-flop 18 and is intended to receive signals from the track sensor 3, under the influence of which the flip-flop 18 goes into one state, thereby fixing the entry of the first axis of each car in the unhook to the measuring section 5 ways.

The second input unit 10 is connected to one of the inputs of the logic element OR 20 and is designed to receive signals that characterize the release of the first truck of each car in the unhooking of the measuring section 5 of the path.

The third input of block 10 is connected to one of the inputs of an OR-NOT 19 logic element, the other input of which is connected to one of the outputs (output Q, characterizing a single state of a trigger) of a trigger 18, and is intended to receive a signal on the passage of the last axis of the second carriage of each car in the trip sensor uncoupling 3. The presence of this signal at the third input of block 10 allows the occupation state of the measuring section 5 of the path to be kept when the trigger 18 returns to its initial state.

The fourth input of the unit 10 is connected to another input of the trigger 18 (input R) and is intended to return the trigger to its initial state when all axes of the second carriage of each car in the uncoupling enter the measuring section 5 of the track.

The first output of the unit 10 is connected to another output of the trigger 18 (output Q, characterizing the zero state of the trigger) and is intended to issue a signal allowing the unit 11 to fix the axes of the first carriage of each car in the uncoupling.

The second output of block 10 is connected to the output of logic element 20 and is designed to transmit blocking and unlocking signals of the time counting circuit of block 9.

The third output of block 10, connected to the output of logic element 19 and to another input of logic element 20, is designed to transmit resetting signals of block circuits.

The control unit 11 of the passage of the first carriage of the car includes a trigger 21 with a counting input, two-input logic elements AND 22 and 23, a reversible counter 24 and a n-input logic element OR 25, where n is the number of output information buses of the counter 24 determined by the size the latter, depending on the required number of maximum learning axes in the carriage carriage.

The first input of block 11 is connected to one of the inputs of logic gates And 22 and 23 and is intended for receiving signals from the track sensor 3.

The second input of block 11, connected to one of the inputs (input R) of flip-flop 21 and counter 24, is designed to receive the reset signals and block the latter.

The third input of the block 11 is connected to the negative input of the reversible counter 24 and is designed to receive signals from the track sensor 1 when it is passed by the first bogie of each car in the uncoupling.

The first output of the block 1 1 is connected to the output of the logic element 22, the other input of which is connected to the output Q of the flip-flop 21 and is intended to transmit signals of the track sensor 3 when it passes through the second bogie of each car in the uncoupling.

The second output of the block 11 is connected to the output Q of the flip-flop 21 and is designed to transmit a signal about the passage of the first carriage of the car through the measuring section 5 of the path. used to initiate the corresponding registers of memory unit 13.

The third output of the block 11, connected to the output Q of the flip-flop 21 and another input of the logic element 23, is designed to transmit signals to block and unlock the corresponding inputs of the reversible counters of the blocks 11 and 12. The output of the logic element 23 is connected to the summing (positive) input of the counter 24, and the output of the logic element 25 is connected to the counting input of the trigger 21.

The passage control unit 12 of the second carriage truck includes a reversible

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counter 26, p-input logic element OR 27, where n is the number of output information buses of counter 26, equal to the number of its bits, and two-input logic element, And 28.

The first input of the unit 12 is connected to the input R of the counter 26 and is designed to receive the reset signals and block the latter.

The second input of the block 12, connected to the minus input of the reversible counter 26 and to one of the inputs of the logic element 28, is designed to receive signals from the track sensor 3 when it is passed by the second carriage of each car in the unhook.

The third input of the block 12 is connected to the positive input of the counter 26 connected by a digital output to the input of the logic element 27, and is designed to receive signals from the track sensor 1 when it passes through the first bogie of each car in the unhook.

The fourth input of block 12 is connected to another input of logic element 28, the output of which is connected to one of the outputs of block 12 and is designed to transmit a blocking signal blocking signal of time block 9 to the time of movement of the first axis of the second bogie of each car in the uncoupling along the measuring section 5 of the path. Another output of the block 12, connected to the output of the logic element 27, is designed to generate a signal for the passage of the second bogie of each car in the unhooking above the track sensor 3.

B.: 114 14 lc control, it contains a reversible counter 29, an n-input (by the number of digits of the counter 29) a logical element OR 39. RS-flip-flop 31 and a two-input logical element AND 32.

The first input of the block 14, connected to the positive input of the counter 29 and the input 5 of the trigger 31, is designed to receive signals from the travel sensor 1 when it passes through the nepBoii trolley of each car and unhook.

The second input of the b.yuca 14 is connected to the input R of the counter 29 and is designed to reset it and block 5 if iifin receive a logical 1 signal.

Third in. unit 14 is connected to one of the inputs of the loop | -c1., esco 0 element 32, and is intended to receive the entry signal: the axis of the second bogie of each car in the unhook mi measuring section 5 of the path.

The quarter input of the unit 14, connected to the minus 5-input of the counter 29 n to the input R of the flip-flop 3, is intended to receive signals 1 of the utja sensor 1 as it passes through the second trolley of each car in the uncoupling.

First exit b. yukp 14, connect 1) with digital B1,1 input of counter 29 and input logically about element 30, is digital, 11p;

formation tires by the number of bits of the counter 29 and is intended to transmit information to block 13 about the number of axles in the cart of the next car of the unhooking.

The second output of block 14 is connected to the output of logic element 32 connected by another input to the output of logic element 30, intended to bring block 15 to its initial position when each car releases an uncoupling of the measuring section 5 of the track.

The third output of the block 14 is connected to the output Q of the flip-flop 31 and is intended to form a time interval equal in duration to the time interval between the moments of the first axes of the first and second bogies of each car in the unhook on the track sensor 1.

The block 15 for fixing the number of cars in the uncoupling includes a two-input logic element OR 33, a trigger 34 with a counting input, a pulse counter 35, two delay elements 36 and 37, and a two-input logic element I 38.

The first input unit 15 is connected to one of the inputs of the logic element 33 and is designed to receive a signal about the passage of the second truck of each car in the unhooking above the track sensor 3.

The second input of the block 15, connected to the input R of the flip-flop 34 and the input of the delay element 36, is intended for receiving the signals of the reset of the circuit of the block 15 to the initial state.

The third input of the unit 15, connected to another input of the logic element 33, connected by an output to the counting input of the trigger 34, is designed to receive a signal about the passage of the next car through the measuring section 5 of the path.

The first output of the unit 15, connected to the output Q of the trigger 34 and one of the inputs of the counter 35, is designed to transmit a signal of the passage of the car on the measuring section 5 of the path.

The second output of block 15, connected to the output of logic element 38 connected by one of the inputs to output Q of trigger 34, is designed to generate a reset pulse of block 18 of block 10 to its initial state after the passage of the second carriage of each car in the unhook over track sensor 3.

The third output of block 15 is a digital output consisting of n external information buses according to the number of bits of the counter 35, the maximum number of which is determined by the maximum number of cars taken into account in the unhook, and is intended to transmit information about the number of cars in the unhook to block 13 of memory .

The fourth output of the block 15, connected to the inverse output Q of the trigger 34 and the input of the delay element 37 connected by the output to another input of the logic element

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This element 38 is designed to transmit the blocking signal of the logic element 16 when the axes of the second carriage of each car are in the uncoupling within the measuring section 5 of the track.

The counter 35 is reset at the input R by a signal from the output of the delay element 36, which makes it possible to save information about the number of cars in the uncoupling at the time it is overwritten from the third output of block 15 by the signal from its first output.

The determination of the static parameters of the uncoupling units in the proposed device reduces to the determination of the overall size of the uncoupler, the number of wagons in the uncoupler and their length, as well as the number of axles in the bogie of each car, in the wagon and in the unhook as a whole. The device also allows to issue intermediate information about the current length of the uncoupling part, following the track sensor 1 at the moments when each unhook car leaves the measuring section 5 of the track.

The principle of measuring the uncoupling length K) mc is that when the jth wheelset of the uncoupler is moving along the control section of a fixed-length path / the device determines the time / m / occupation of this section by this wheel pair. The resulting value of time / m /, being represented in digital form, is equivalent to the length / m, by means of which the distance traveled by the detachment is measured at the ith measuring step:

/.-t/f

(one)

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where ti is the time interval between the tracking moment of the track sensor 1 / -Y and {/ - | -1) -th axis, at the end of which a new value / m (/ 4-1) is formed.

Thus, for example, for an uncoupling consisting of p 4-axle carriages, by means of time 61, obtained by following the control section of the first axle of any carriage of each carriage of the uncoupling, the length / or base of this carriage is measured; by means of time / m obtained by following the control section of the second axle of the first bogie of each car of the uncoupling, the distance 6 - / g between the extreme axes of the adjacent carriages of the carriage is measured; by means of time / m, obtained by traversing the control section of the last axis of each car of the uncoupling, the distance / mV between the extreme axes of adjacent cars (inter-car space) is measured. The total uncoupling length / from here is defined as the arithmetic sum of the results of individual measurements:

(2 / G, t, + / b „; + /“ ,,) + 2 / к.

(2)

where / k is the average distance between the axis of the coupling head and the axis nearest to it

car, which is not measured and is taken into account when calculating the constant for all types of cars:

/ mv, at.

Obviously, the largest error in measuring the length of the unhooking can be in measuring distance / bv, which for the nd car of the unhooking can be represented as two components, these are:

/ bv, / bv min 4-D /, -, (3)

where / bw min is the minimum possible distance 6 between the extreme inner axes of adjacent carriages of the car;

L /, - excess of the actual value / bv, relative / bvmin.

Consequently, an increase in the accuracy of measuring the length of an unhook can be achieved if one measures only the value A /, and the quantity / quantity is taken as a constant and is taken into account in the final determination of the length of each car in the unhook. Thus, the uncoupling length can be represented as the following expression:

/ father 2 / k + "/bv.mnn-4-2(2. / 6T; -f D /, +

+ / MB, -).

This expression is implemented in the proposed device, for which it was necessary to introduce the control of the number of axles in the carriage carriage.

The device works as follows.

When the first wheelset of the uncoupling enters the measuring section 5 of the path from the output of the track sensor 3, a short pulse arrives at the first input of the unit 10, which records and remembers the fact of the occupation of the measuring section 5 of the path. At the same time, on the first and second outputs of block 10, signals "O" appear, which, acting on the second inputs of blocks 11 and 9, respectively, enable the latter to work. At the same time, the signal “O also appears at the third output of block 10 and arrives at the first input of block 12, allowing the latter to work. The passage of the first uncoupling axis through the track sensor 3 is also recorded by block 11, to which a signal from this track sensor is received at the first input, resulting in the reversible counter of block 11 being written "1.

Upon further movement of the uncoupling, each axle of the first carriage, when it passes through track sensor 3, causes an increase in the content of the reversible counter of unit 11 by "1. Thus, with the passage of all the axes of the first carriage of the car through the track sensor 3 in block 11, their total number is fixed, provided that no one axis of this carriage is at that moment

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the track sensor 1 has passed. Otherwise, the number of axles fixed by the block 11 will be reduced by the number of axes that have traveled by this time to track sensor 1.

When the first wheel pair is uncoupled from the control section of the track, a signal is generated at the output of track sensor 1, which acts on the first input of block 7, as a result of which the latter stops counting time, and a digital signal corresponding to the first time signal is generated at one of its outputs. measure uncoupling length. This signal arrives at one of the inputs of block 8, after which the time stamp scheme of block 7 returns to its original state, which persists until the next (in this case, the second) wheel pair of the uncoupling is on the control track.

When the first wheelset of the uncoupling comes off the control section of the path, the signal from the output of track sensor 1 also goes to the third input of block 9, the first input of logic element 16 and to one of the inputs of logic element 17. As a result, the time counting circuit of block 9 is started, to the first input which receives time stamps from another output of block 7, which corresponds to the beginning of the measurement of the length of the unhooking (in this case, the distance between the first and second axles of the first carriage of the first uncoupled car is / :). In this case, the contents of the time counter of block 9, characterized by the state of the information buses of its digital output, are continuously compared with the value of the current (in this case, the first) time equivalent of the length of the control portion of the path stored in block 8, which calculates the length / i in accordance with with the expression 1.

Simultaneously with the launch of block 9, the signal from track sensor 1 through logic element 16 passes to the third input of block 12 and the first input of block 14, increasing the content of the reversible counters by "1. as well as to the third input of block 1 1, causing the content of the reversible counter of the last to be reduced to “1. Thus, when all the k axes of the first carriage of the car are traced through the track sensor 1 in block 8, the base of this cart / bt | will be fixed, and in block 1 1 the contents of its reversible counter will become zero. The latter indicates that the first car of the next car proceeded along the measuring section 5 of the track, as a result of which the second output of block 11 generates a signal "1, which, arriving at the fourth input of memory 13, allows the latter to read into its registers information about the length of the base carriages of the next car from block 8. In this case, in block I 1, a prohibition on the further operation of its reversible axle counter is formed until the first axis of the next car of the uncoupler

will not enter the measuring section 5 of the path. In addition, you should pay attention to the fact that when the first carriage releases each car in the uncoupling of the control section of the road, the number of axes of this carriage will be recorded in the reversible counters of blocks 12 and 14 so that trace the movement of the second carriage of the car. Since the last axis of the first carriage of the track sensor 1 has been traced, the device, in accordance with expression (4), measures only part D / i of the distance between the extreme internal axes of the first and second carriages of the carriage, which is equal to the length of the section taken by the unhooked the first carriage of the track sensor 1 until the first axis of the second carriage of the track sensor 3 follows the path. According to (1), the distance L 1 corresponds to time i, measured by block 9, and the measure .. ". The end of the time interval / "is fixed by block 11, at the first output of which, when the second carriage of the first car enters the measuring section 5, the signal" 1 is received at the second input of block 12, resulting in one of the outputs of the last signal "1, which enters to the second input of block 10. The latter translates this signal to its second output, from which it enters the second input of block 9, prohibiting its operation. When each axle of the second carriage passes through the track sensor 3, the contents of the reversing counter of unit 12 are reduced by one. Thus, after the passage of the track sensor 3 by the last axis of the second truck of the detachment in block 12, the contents of the reversible counter will be zero, with the result that at the other output of block 12, a signal 1 is generated that characterizes the passage of the track sensor 3 by one car the input of block 15, where it is memorized and serves as a drop for preparing blocks 10 and 11 for processing the axes of the next car of the uncoupling, and a pulse signal is generated at the second output of block 15, by means of which the circuit of block 10 is vodits to the initial state DP account next carriage unhooked. Along with this, the first output of block 15 generates a signal "1, which enters the third input of block 13, allowing the latter to read information about the number of axles in the carriage of this car from block 14. If the uncoupler consists of a single carriage, then part of device associated with the completion of the processing of the axes of his second trolley when it passes over the track sensor 1. When the first axle of the second truck of the car enters the track sensor 1, the signal "1 from the output of the logic element 17 goes to the fourth input of block 14, here what

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the content of the reversible counter of the latter is reduced by one, and on the third output of the counter, the signal "O" is generated. The latter, affecting the fourth input of block 12, fixes on one of its outputs a signal “O. From the effect of the first axis of the second car truck on the track sensor 1, block 9 begins to continue counting the time, which then in block 8 will be converted into a certain number of segments of length equal to the length of the control section.

With the passage of the last axis of the second car truck over track sensor 1, the contents of the reversing counter of block 14 will become zero, resulting in a signal "1 from the second output of block 14 tustunit to the third input of block 15, the contents of the car counter of which will increase by one and reflect the number of cars uncoupled , passed the measuring section 5 ways (in this case, one car). At the same time, at the first output of block 15, a signal "O" is generated, which is fed to the third input of block 10, as a result, if the uncoupler consists of one car, the whole device circuit is brought into the initial state by a signal "from the third output of block 10 Several times the signal “1 from the first exit of block 14, affecting the fifth input of block 13, allows the latter to overwrite information about the number of cars in the uncoupling from block 15 and the length of the uncoupling from block 8 to their registers.

The device makes it possible to measure the length of cars with multi-axle bogies, the length of which at the conveyor cars can cover the length of the measuring section. In this case, in the reversive counter of block 11, an alternate increase occurs and yMCHbujenne of its contents B, depending on which track sensor the signals are sent to its inputs from.

After the passage of the last axis of the first axle trolley n: hell with the track sensor 3, the subsequent operation of the device is similar to that described.

If the uncoupling consists of two or more cars, then after the passage of the second carriage of each car above the track 1) 1m sensor 3, the block 11 scheme is reset and ready for counting the axes of the first car after the car. In this case, the logical element 16 is closed at the third input and does not allow 12 and b to the third input. 1 1 1 signals of the track sensor 1 when the last carriage of the previous wagon car passes over it. This excludes the influence of the previous waggon on the scheme of block 11, which registers the passage of the axes of the first bogie of the next car.

When the first car clears the measuring section 5 of the path with a signal from the first output of block 15, the device is not reset to the initial state, since

at the third output of block 10 in this case there is a signal "O (the busy signal of the measuring section by the next car in the uncoupling is formed when its axes pass over the track sensor 3). The rest of the scheme of the device works similarly.

Claims (1)

Invention Formula A device for determining static parameters of uncoupling on a hump, containing track sensors installed on the measuring section, a unit for calculating the length of cars and a detachment, units for measuring time intervals, a memory unit whose input is connected to the output of the unit for calculating the length of cars and the detachment whose inputs are connected to one of the outputs of the time interval measurement units, two inputs of one of which are connected respectively with one and the other track sensors, and the second output is connected to the input 20 of the block input memory, the fourth input of the second measurement unit of time inter-which is connected to the second output of the unit shafts, idleness control unit, measuring the passage of the first carriage, the third output connected to the second input of the first element I with the fourth input of the idleness monitoring unit of the measuring section, the third input of the car passage monitoring unit and the second input of the second element I, the output of which is connected to the fourth entrance of the passage control unit the car, the first output of which is connected to the fifth input of the memory block, the sixth input of which is connected to the third output of the block fixing the number of cars, the fourth output of which is connected to the third input of the first element, the third input to the second output of the car aisle control unit, the third output of which is connected to the fourth input of the aisle control unit of the second carriage carriage. one of the inputs of which is associated with a third track sensor, characterized in that, in order to increase reliability, it is equipped with logic elements AND, a control unit of the passage of the car, a block fixing the number of cars and blocks of control of the passage of the first and second carriages of the car the first output of the last of which is connected to the second input of the unit is the control of the freeness of the measuring section, the first output of which is connected to the first input of the control unit of the passage of the first carriage, the second input of which is connected to the third track tchikom, and the third is connected to the output of the first AND gate, connected to the first input vagofts passage control unit. 2 0 to the second input of which is connected to the second output of the control unit for the idleness of the measuring section connected to the second input of the memory unit and the first input of the control unit for the passage of the second carriage, the second input of which is connected to the first output of the control unit for the passage of the first carriage, the first element And the first input connected with the first track sensor associated with the first input of the second element And the second output with the first input of the block fixing the number of cars, the second input of which is connected to the second output One control unit for the free measurement control unit, the third output of which is connected to the second input of the second time interval measuring unit, the third input connected to the first track sensor, the third input to the first output of the car number fixing unit, the second output of which is connected to the track control of the passage of the first bogie, the third output connected to the second input of the first element And the fourth input of the control unit idleness of the measuring section, the third input of the control unit of the passage of the car and the second input of the second el And, the output of which is connected to the fourth input of the car passage control unit, the first output of which is connected to the fifth input of the memory unit, the sixth input of which is connected to the third output of the car number fixing unit, the fourth output of which is connected to the third input of the first element, the third input - to the second output of the control unit of the passage of the car, the third output of which is connected to the fourth entrance of the control unit of the passage of the second trolley of the car. Thebes, 3 ZB 27 28 (rig. 33 3 fae.v 38 35