SU592067A1 - Device for control of railway train motion - Google Patents

Description

(54) DEVICE FOR CONTROL OF FAR "KENIYEM. TRAINS

S P T B

cable thread from separate sections fed from different sources, and change the signal frequency in the section over which the train is currently passing, whose movement needs to be accelerated or slowed relative to other trains 2.

This device provides for the control of trains according to a rigid program that ensures that the requirement for regulation accuracy is fulfilled in accordance with the schedule of movement only of rolling stock with similar traction and braking characteristics. With large differences in the characteristics of the rolling stock, the accuracy of the movement schedule is insufficient. In addition, the need to lay a cable increases the cost of an automatic control system operating on this principle, which is especially aggravated by the need to precisely maintain the distance between the chevrons, as this interferes with repair and other work related to the operation of the train. containing a train schedule setting unit installed at the central point, connected via a train departure signal unit with a communication line located at the station, block at each block station — selection of the speed of movement on it and transmitting a signal about its magnitudes to a train, connected to the block by koloirovanie its sections, and output - to the track circuit of this section, and on the train - a receiver of signals about the specified speed values block sections, the actual train speed sensor and the receiver of train control signals at the station, the first of which are connected via, the speed comparison unit to one of the inputs of the block for selecting control commands for the train at Peragon and the station and the second Only to its other entrance, and the train control unit of the train h is connected to the exit of the train control selection block of the train.

A disadvantage of this device is that the regulation of the train travel time over the distillation is carried out only in the acceleration zone of the train after it departs from the station. For iero, from the block for setting the motion graph, a signal is sent to the block for shutting down the power of the track control point located in the acceleration zone of the train. After the train actually follows this point, the throttle shutdown unit generates a motor shutdown signal from the traction mode, depending on the magnitude of the mismatch

between the graphical and actual points of the trace of the reference point. Such adjustment of the train travel time over the stage satisfies the accuracy requirements only when operating on the metro line of rolling stock with close traction and braking characteristics. The time control limits are also limited, since the acceleration time is 20-30% of the total travel time of the train. When operating on the metro line of various types of rolling stock, the accuracy of adjustment does not satisfy the requirements.

The purpose of the invention is to improve the accuracy of train control by eliminating the influence of rolling stock characteristics.

The goal is achieved by the fact that the device is equipped with a computing unit installed at the central point for each train type of travel time over the span and a unit for selecting speeds for moving along it, while the inputs of the train time calculating unit are connected to the train schedule setting unit and the train departure sensor from each station, and the output through the speed selector to the coding block by block sections.

FIG. 1 shows a block diagram of the proposed device installed at the central point, the station and each block section in FIG. 2 is a block diagram of a device located on a train.

At central point 1, block 2 of the train schedule is located. This block contains the following data per day: time of the interval between trains, time of one hundred nkn trains at the station, time of arrival of trains at the station, time of departure of trains from the station.

The outputs of block 2 are connected to calculating block 3 for each type of train running time on the stretch connected to the sender 4 and through the selector 5 of the speed on it to the speed encoding block b. On the distillate, and to the block 7 issuing train departure signals connected with line 8.1 communication, located at the station in the zone where the engine is switched to the traction mode. In the deceleration zone of the train at the station there is a friend line 8.2 of communication. Unit 5 contains a memory node for the program of train speeds for over-travel, a logic flow diagram for selecting the program of the train depending on the time required for the train to move along the span and the station number for signal converters that are not shown - in the drawings of the Program for speeds of train speed. are

as a result of traction calculations, based on the schedule time of train arrival at the station, deviations from the traffic schedule, plan and profile of each span, minimum power consumption, accuracy of the movement schedule. From each traffic curve constructed as a result of the computational calculations for the required travel time over the stage, the train speeds for each block section are determined.

The output of block 6 of speed coding over the stage is connected to each block 9.1–9.4 of selecting the speed of movement over block sections and transmitting a signal about its value to a train over black rail chains 10.1–10.4.

Each of the E.1-9.4 blocks for selecting the speed of movement contains a decoder 11.1-11.4, a control unit 12.1-12.4, and an alternating current generator 13.1-13.4.

Block 14 for determining the allowable speed of a train moving along blockpoints depending on the approach of trains is connected to the inputs of blocks 9.1-9.4 of the choice of the speed of movement.

The train is equipped with a receiver 15 of signals about predetermined speeds in block sections, an actual speed sensor 16 and a receiver 17 of train control signals at the station, the first of which are connected through the speed comparison unit 18 to one of the inputs of the train control selection unit 19 and the station, and the second one - directly to its other entrance, and the output of the train control command selection unit 19 is connected to the traction motor control unit 20.

The device works in the following way.

The graphic sending signal is generated by the movement schedule setting unit 2. Therefore, the signal of block 7, provided that the train just l at the station is the minimum required time for disembarking and embarking passengers, emit a frequency of 32 KHz (inductive line) 8.1 5E ei. A frequency of 32 kHz is perceived to be received by NIC 17 ,. containing inductic coils, resonant filters and signal amplifiers, and is transmitted to komzil select unit 19. Departure from the station occurs only under the condition of a free and forward traveling path, which is determined by block 14. Depending on the idleness of the C7 path, the atomic circuit 10.1 can be operated from the 13.1 nepsMSHHCro generator with a frequency of 275, 225, 175, 125, 75 Hz, which corresponds to the transmission speed, 40 60, 75, 90 km / h movement of the train in the block section. The integration of the alternator 13.1 frequency is performed by the decoder 11.1 and the control unit 12.1. The frequency of the track circuit signal 10.1 in the train equipment is sensed by the receiver 15 containing inductors, resonance filters and signal amplifiers. The amplified frequency signal is converted to a voltage, which is then compared to a voltage proportional to the speed, in speed comparison unit 18. A voltage proportional to the actual speed is generated by the actual speed sensor 16. When the track is clear ahead of the other way, the comparison unit 18 generates a signal, which is resumed, the train moving off. On this signal in the signal received from the receiver 17, the block 19 selection of commands produces

0 is a signal that the traction drive control unit 20 turns the train engines into traction mode. The moment of departure of the train from the station is detected by sensor 4 of departure,

5, the signal from which arrives at the central point 1 in block 3 of calculating the train travel time over the stage, to which, from block 2 of the task of motion graphism, a signal also arrives about the arrival time of the same train

0 the next station, in block 3, the calculation of the train travel time over the stage is calculated the required train travel time to the next station, which in block 5 is selected

5 program speeds on the stage. The selected velocity program is transmitted to the station from which the train departed, in the form of a time pulse. This time pulse

0 is received by the coding block b, converted to a binary code, according to which the decoder 11.2 determines the permissible speed of the train in each block section, in accordance with KotO; X, each rail

5 10.2 with the control of the block 12.2 by the generator 13.2 of the alternating current is powered by one of the often mentioned ones. In the decoders 11.211 .4, the signals also come from

O block 14, which makes it possible to allow train speeds in block points depending on the approach of trains. In these decoders, preference is always more than

Claims (3)

5 speeds, which corresponds to the safety conditions of two packs. Exceeding the software scaling speed of galosos 4p, defined by block 14, doesn’t occur even with a significant schedule failure e) Chsheni as a result of mln emergency situations. The signal frequency of the rail circuits 10.2- 30.4 are perceived by the receiver 15 and vkpe ™ l 8ote with the help of the re: zanana gas station and relays of eleg gents. npKif aH hours; then, the voltage is transformed into a constant voltage with the release of voltage levels corresponding to the commands on the control motors of the traction motors. The following commands are provided for controlling the traction motors: Engagement of the engines in the traction mode. Engagement of the engines in the braking mode c. the minimum deceleration, the inclusion of the engine in the braking mode with maximum deceleration, the shutdown of the engine of all the specified modes. Each command to control the traction motors corresponds to a certain level of constant voltage for each allowable train speed. The speed of the train is determined by a sensor 16 of the actual speed, generating a frequency proportional to the speed of the train, which is converted to voltage. The indicated voltages, corresponding to the permissible and actual speeds, are compared in comparison unit 18, as a result of which the command selection unit 19 determines the command and controls the traction motors. Thus, in the process of moving the train along the train, the speed of the train is maintained in accordance with the speed program and, consequently, the train’s passage through the Required time is ensured while maintaining safety. The train stops at the station with the Required accuracy using an inductive line 8.2, made in the form of a two-wire cable with crosses, constantly fixed at 42 kHz. The distance between the adjacent wire crosses determines the specified train speed over time. The link point 8.2 of the inductive link 8.2 is received by the receiver 17, which compares the actual time the train travels the segment of the path between the strains of the wires for a given time. adannogo over the actual time that corresponds to the actual excess MSE over predetermined RSTT, the signal generated by the receiver 17 to switch the traction motors during braking operation maximum zamelleniem which affects "a control circuit m govymi motors alternation;:., the selection unit 19 commands. Claims An apparatus for controlling the movement of trains, comprising a train movement schedule unit installed at a central point, connected via a train departure signal unit to a communication line located at a station, a speed selector unit installed at each block section and transmitting a signal about it the value of the train, the input connected to the coding block by sections and the output to the track circuit of this section, and the train receives a signal receiver about the specified values of the speed of movement on the block - the segments, the actual train speed sensor and the receiver of train control signals at the station, the first of which are connected via the speed comparison unit to the 5th one of the inputs of the train control command selection unit for the stage and station, and the second one directly to its other input, and to. An output of a train control selection unit is connected to a train engine control unit, characterized in that, in order to improve the accuracy of train movement control by eliminating the influence of rolling stock characteristics, it is equipped with a calculating unit installed at the central point for each type of train time for moving and speed selector unit: .1 on it, while the moves of the unit for calculating driving time for distillation are connected to the unit for setting the schedule, train movement and the train departure sensor each station -., and the output through, the block of choice of speed of movement - to the block of coding. h it in b.pok areas. Sources of information taken into account in the examination 1.Sulp. SPE number 3229086, cl. 256-187, 1966. 2. The patent of fraction No. 1579467, cl. In 61 L, 1969. 3. USSR author's certificate number 381621, cl. In 61 L, 1969. 8.2 (Reg. 1