RU2286646C2 - Vehicular communication network of consist - Google Patents

Abstract

FIELD: controlling, warning, or similar safety devices for communications between train cars.

SUBSTANCE: proposed vehicular communication network has mobile control and diagnostics console, as well as stationary and mobile communication terminals disposed in each car. All communication terminals are interconnected over radio channel both within car and with communication terminals of adjacent cars. Mobile control and diagnostics console is designed for installation in any car and for connection over radio channel to any communication terminal, not only that installed in particular car at the time but also to terminals of adjacent cars. Mobile control and diagnostics console is connected to desired terminal through tandem of terminals characterized in communication characteristics best at the time.

EFFECT: enhanced reliability of communications and safety of train movement.

1 cl, 1 dwg

Description

The invention relates to regulatory, warning or similar safety devices operating between cars, in particular to train communication systems.

Known on-board signaling and communications network of rolling stock (V. Egorov. Design and operation of passenger cars (for conductors): Textbook. - 2nd ed., Revised and additional. - M .: UMK MPS of Russia, 1999. - S.193-204), including the control panel, two-wire lines that are energized, passing through the pipes and connected by special plug connectors, as well as the through line of the train radio network with intercar cars low voltage plug connectors. Telephone communication of the train head with the wagon conductors, train electrician and locomotive driver is carried out in a unilateral mode. Wired communication lines and alarms are exposed to the harmful effects of temperature, humidity, oil, acids, vibration, as well as intentional damage. The disadvantages of this organization are the low reliability and complexity of operation (connecting or disconnecting the plug connectors when forming or disabling the train), the lack of mobile direct and feedback between the cars, mobile control of the equipment, which is why one of the conductors must constantly monitor the console, which leads low reliability of communications and signaling, lack of responsiveness of personnel management.

Also known is the variant of the inter-train communication channel (Volkov A.A. The variant of the inter-train communication channel // Automation, Communications, Informatics. - 1998. - No. 7.- P.6), in which the rails are used as the communication line, multi-turn loop antennas are introduced under the floor of each car and modems for voice communications. The disadvantages of this technical solution are the availability for damage to the multi-turn loop antenna under the floor of the car, the lack of mobile communication inside the car, since the modem is connected by wires to the frame antenna, low channel bandwidth, interference that affects third-party communication systems, especially on adjacent tracks.

Known on-board communication network of rolling stock BSS PS (Kazansky P.A., Gorelov G.V., Kolbasyuk S.L., Novikov S.A. On-board communication network of rolling stock. // "Telecommunication". - 1993. - No. 12 .S.39-40), which includes in each carriage of rolling stock terminal communication devices (DCS) (not shown in the figure) and a unified switching unit (CC), one of which is assigned as the master, and the CCC are connected to the CCC by linear interfaces, and adjacent MCs are connected by network interfaces with two (primary and backup) transit fiber-optic communication lines (FOCL) through ithout emergency switch relay (AKP), inter-vehicle jumper remote control and diagnostics (OMPs) controller based on PC (not shown), a digital radio link connecting the communication board network of the rolling stock to external communication systems. The disadvantages of this technical solution are the presence of fiber optic links with inter-car jumper wires, which are subject to constant shaking, require connection or disconnection during the formation or disbanding of the train, and are also available for intentional damage, the high cost of fiber optic switching equipment, which reduces the reliability and complicates the operation of the on-board communication network of a mobile composition, reduces the safety of train traffic, increases operating costs, reduces labor productivity.

BSSPS is also known (RU 2206177, MPK7 Н 04 В 7/26. On-board communication network of rolling stock. Volynsky D.N., Volynskaya A.V. - Published on 06/10/2003. Bull. No. 16) - a prototype that includes a control panel and diagnostics, in each car of rolling stock terminal devices of communication and a unified switching unit, a digital radio link connecting the on-board network of rolling stock with external communication systems, connections between terminal devices and a unified switching unit, as well as between adjacent unified switching units, on the radio channel, and the frequency range and level of the radio signal in the radio channel is selected in such a way that the communication terminal devices are connected only with the unified switching unit of the car in which the communication terminal devices are currently located, and the control and diagnostic console is mobile and communicates via radio channel with unified switching unit of the car in which the control and diagnostics panel is currently located. The disadvantage of this technical solution is the lack of reliability of the on-board communication network of the rolling stock, since in case of failure of at least one unified switching node, the entire communication network is broken.

The purpose of the invention is to increase the reliability of the on-board communication network of the rolling stock.

This goal is achieved by the fact that all the communication terminal devices and the mobile control and diagnostic panel are performed by universal elements of the communication network, which can communicate in pairs in any combination.

The essence of the invention lies in the fact that all the communication terminal devices are interconnected via a radio channel both inside the car and with the communication terminal devices of adjacent cars, and the mobile control and diagnostic panel is arranged to be placed in any car and connected via a radio channel to any terminal device communication not only of the car in which it is currently located, but also with communication terminal devices of adjacent cars, while connecting the mobile control and diagnostic panel to the desired terminal device The communication property is carried out through a chain of communication terminal devices characterized by the best quality of communication at the moment.

The drawing shows a diagram of the on-board communication network of the rolling stock, which contains in each car 1 terminal devices 2 (in the form of mobile radiotelephones for personnel and passengers, radio sensors and actuators of the car automation system, miniature video surveillance terminals and other necessary devices), and terminal devices communications 2 via radio channels 4 communicate with each other, both inside the car 1, and with the terminal devices of the communication of adjacent cars, and the mobile control and diagnostic panel 3, being in yubom wagon can communicate over the air 4 with any communication terminal device 2 is not only that the car in which he is currently, but also a communication terminal devices adjacent carriages.

The proposed on-board communications network of the rolling stock operates as follows. Mobile control and diagnostics panel 3 is a communication terminal device that plays the role of a wearable control panel for a train head, it transmits and receives a radio signal anywhere in the train. The radio signal is simultaneously transmitted to several nearby communication terminal devices, but the communication is organized with the communication terminal device with which the communication quality is currently the best. Further, through the chain of terminal devices of communication, the radio signal arrives at that terminal device of communication 2 in any car 1 of the train for which it is intended. The response radio signal from the communication terminal device 2 goes the same way in the opposite direction. The preference in choosing a pair is given to that communication terminal device, the quality of communication with which is currently the best. Failure of one or even several communication terminal devices does not lead to network disconnection, since the connection remains through operable communication terminal devices. By the same principle, nature organized neural circuits in living organisms: signals in neural circuits propagate from source to recipient simultaneously in many ways, which leads to high reliability of signal transmission and high survivability of the whole organism.

Example 1. The head of the train presses the call button of the tail carriage conductor; a call signal through a chain of communication terminal devices of all cars located between the car in which the train head is currently located and the tail car goes to communication terminal 2 (mobile phone of the tail car conductor), which gives a response signal, after which the train head can give a task to the conductor or get information from him.

Example 2. The head of the train can observe what is happening in the corridor, for example, of a second carriage. To do this, by pressing the appropriate button on the control and diagnostic panel 3, he sends a signal to turn on the video camera installed in the corridor of the second carriage through a chain of terminal communication devices. The video camera sends the image via radio channel 4 in the opposite direction to the video screen of the mobile control and diagnostics panel 3 of the train head.

To ensure high throughput of radio channel 4, it is made broadband. At the same time, high noise immunity of channel 4 is ensured by using linear-parametric modulation and signal accumulation in it (D. Volynsky, Prerequisites for using linear-parametric modulation in information transmission systems // New Information Technologies and Systems: Materials of the IV International Scientific and Technical Conference. - Penza: PSU, 2000 - p. 140).

The proposed on-board communications network of rolling stock will increase the reliability of communications, which improves the safety of trains and staff, labor productivity, the level of service, reduces operating costs.

Claims (1)

An on-board communication network of rolling stock, including a mobile control and diagnostic panel, as well as stationary and mobile communication terminal devices located in each car, characterized in that all communication terminal devices are interconnected via a radio channel both inside the car and with communication terminal devices wagons, and the mobile control and diagnostic panel is configured to place in any wagon and connect via a radio channel with any terminal device not only the wagon in which it located at the moment, but also with the communication terminal devices of adjacent cars, while the connection of the mobile control and diagnostics panel with the desired communication terminal device is made through a chain of communication terminal devices characterized by the best communication quality at the moment.