RU2342269C1 - Method for electric train motor vans connection by high speed communication line and device for its implementation - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: section of communication line is formed at least in one van, input and output being located on opposite sides with regard to van coupling. Output of van communication line is connected to input of communication line section installed in same van and output of communication line section is connected to input of communication line of second van located opposite communication line section. Device contains two commutators installed in adjacent vans, stub installed at least in one van, output of first commutator is connected to input of stub installed in same van and output of stub is connected to input of second commutator installed opposite stub output in second van, stub input and output being located on opposite sides with regard to van coupling.

EFFECT: simplification of design of communication line between vans.

2 cl, 2 dwg

Description

The invention relates to connection methods and devices for organizing high-speed transmission of information throughout the composition of an electric train, in particular for connecting motorized cars of an electric train.

Communication lines in information systems in railway transport are traditionally used to transmit signals from various sensors (for example, security and fire alarm systems, diagnostics of train technical subsystems, video surveillance and others) that ensure safety and are distributed throughout the train (electric train) to monitoring devices and controls, usually located in train control cabins. The speed of information transfer between these devices, as a rule, does not exceed several tens of kilobits per second.

One of the main requirements for intercar connections is the inadmissibility of the inter-car cable of the communication line from the corner of one car to the cross lying angle of another car, i.e. through the coupling of cars. To eliminate this arrangement of the connection on electric trains, the method of inter-car connection is used, which is the closest analogue (Prosvirin B.K. DC electric trains with electric braking. M .: Transizdat, 2000, p.239-241). A typical composition formation scheme always provides for the alternation of electric train cars so that there are two motor cars in a row in the composition, and the head cars of the electric train in the composition are always located mirror-image relative to each other. With this topology for the formation of the composition, intercar cables should go from one side to the other side of the train. To ensure such a transition, an additional connector has been introduced in each motor car, the contacts of which are connected to the contacts of the terminal rail connector of the car wiring diagram, which connects the communication line to another motor car and acts as a mounting splitter. The unused intercar cable of the communication line, connected at one end to a terminal rail, is connected at the other end to an idle receiver located on the same car. This method of inter-car connection ensures that the inter-car connection is always located on one side of the car’s coupler, and therefore, its invariance to rearrangement of cars and their “back-to-back” reversal during formation of the train.

A device that implements the known method comprises two switches installed on adjacent motor cars, each of which is connected to a splitter for two outputs, the first output of the first switch through a splitter is connected to an idle receiver, and the second output is connected to an input located opposite the second output of the first switch, second switch.

In modern trains, to improve the quality of passenger information services, services such as multi-channel broadcasting of video programs, Internet access, mobile phone communications at any point on the route and from any point of the train, etc. are being introduced. Used low-speed communication lines for these purposes are unsuitable, because information transfer speed for these purposes in long communication lines can reach 1000 Mbps, according to the IEEE 802.3 (Ethernet) standard. In addition, in high-speed communication lines, coordination of the wave impedances of the cable and the inputs / outputs of the switching devices, as well as matching of the wave impedances of the cable segments to each other, should be provided. The first of these conditions is always fulfilled when using cables and connectors recommended by the standard. The second condition when applying the known method and device for inter-car connection cannot be fulfilled, because according to the IEEE 802.3 or IEEE 802.3u standard, parallel cable connection is not allowed to ensure transmission speeds of up to 1000 Mbps (installation of mounting splitters). Therefore, the known method and device for inter-car connection are unsuitable for inter-car connection by a high-speed communication line.

The aim of the present invention is to provide a method and device for inter-car connection of an electric train, which allows to provide the required speed of information transmission over the communication line of the electric train in accordance with IEEE standards, as well as to simplify the design of the segments of the inter-car connection of the communication line by directly connecting the segments of the communication line of adjacent motor cars of the electric train.

This result is achieved by the fact that the method of inter-car connection by a high-speed communication line of motor cars of an electric train includes forming and connecting a communication line of adjacent cars, forming, at least on one of the cars, a segment of a communication line, the input and output of which are located on different sides relative to the car’s coupling, the connection of the output of the communication line of the car with the input of the segment of the communication line installed on the same car, and the connection of the output of the segment of the communication line with the opposite output of the segment of the line input communication link the second carriage. As a segment of the communication line can be used cable, optical fiber, cable, etc.

The indicated result is also achieved by the fact that the inter-car connection of the high-speed communication line of the motor cars of the electric train, containing two switches mounted on adjacent cars, also contains at least one loop installed on one of the cars, the output of the first switch being connected to the loop input located on the same car, and the loop output is connected to the input of the second switch installed opposite the loop output on the second car, while the loop input and output are located on different sides us with respect to the tow car.

Such improvements to the method and device for inter-car connection with a high-speed communication line of electric car trains allow us to provide the required information transfer speed on the electric train communication lines in accordance with IEEE standards, as well as to simplify the design of inter-car connection sections of the communication line due to the direct connection of the communication line segments of adjacent electric car trains.

Figure 1 is a structural diagram of the formation of an electric train on the example of a six-car connection according to the scheme G-M-P-M-M-G (Head-motor-trailed-motor-motor-head) according to the claimed method for inter-car connection of motor cars.

Figure 2 is a structural diagram of the formation of an electric train on the example of a six-car connection according to the scheme G-M-P-M-M-G according to the known method for inter-car connection of motor cars.

The method according to the invention is as follows. All cars of the electric train are connected by a formed communication line. Depending on the requirements for the information system of the electric train, a cable, optical fiber, cable, etc. can be used to organize the communication line. At least one of the adjacent motor cars is formed by a segment of the communication line, the input and output of which are located on different sides relative to the coupling of the car. A segment of a communication line is, respectively, a cable, an optical fiber or a loop. Connect the output of the communication line of the motor car with the input of the segment of the communication line installed on the same car, and connect the output of the segment of the communication line with the input of the communication line of the second motor car located opposite the output of the segment of the communication line.

The device (figure 1) according to the invention, allowing the method to be implemented, includes a first switch 1 mounted on a first motor car 2 of an electric train, a second switch 3 installed on a second motor car 4, a section of a communication line, made for example in the form of a loop 5, located on the first car 2. The input 6 and output 7 of the loop 5 are located on different sides relative to the coupling of the car, available in the middle part of the front side of the car. The input 6 of loop 5 is connected to the output 8 of the communication line of the first carriage 2, which is simultaneously the output of the first switch 1, and the output 7 of the loop is connected to the input 9 of the communication line of the second carriage 4, which is also the input of the second switch 3. To ensure the operational connection of the cars of the electric train, cables 5 can be installed on each motor car of an electric train.

The claimed method and device allows to provide the required speed of information transmission over the communication line of the electric train in accordance with IEEE standards, as well as to simplify the design of the inter-car connection by the communication line by directly connecting the segments of the communication line of adjacent motor carriages of the electric train, by eliminating the idle receivers 10 (Fig. 2) and do not meet the requirements of international standards for mounting splitters 11 of the known method and device.

The invention can be used in the design and manufacture of compounds for organizing high-speed transmission of large amounts of information: multichannel broadcast of video programs, Internet access, mobile phone communications at any point on the route and from any car, etc. - throughout the composition of the electric train, in particular for connecting motor cars of the electric train.

Claims (2)

1. The method of inter-car connection with a high-speed communication line of motorized cars of an electric train, comprising forming and connecting a communication line of adjacent cars of an electric train, characterized in that at least one carriage forms a communication line segment, the input and output of which are located on different sides relative to the carriage’s coupling connect the output of the communication line of the car with the input of the segment of the communication line installed on the same car, and connect the output of the segment of the communication line with the input l opposite the output of the segment of the communication line Nia communications second carriage. 2. A device for inter-car connection with a high-speed communication line of electric car wagons containing two switches mounted on adjacent cars, characterized in that it contains a cable installed on at least one car, and the output of the first switch is connected to the input of the cable located on this the same car, and the loop output is connected to the input of the second switch installed opposite the loop output on the second car, while the input and output of the loop are located on different sides relative to the coupling of the car.

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