RU126303U1 - SYSTEM OF INTERVAL CONTROL OF TRAIN TRAFFIC WITH THE FUNCTION OF SAVING THE INDICATIONS OF THE TRAFFIC IN THE FAST ALTERNATE FAULTS - Google Patents

Abstract

The system of interval control of train traffic, containing a stationary device and a locomotive device, consisting of interconnected electronics, indication, switching and data input units located in the driver’s cab, the electronics unit is capable of determining the permissible speed mode and monitoring its compliance with fixing feedback signals from the driver’s vigilance knob, internal background testing of each module, as well as two-channel data processing formations, and includes two measurement modules for central information processing, a route module, a digital radio channel module, two movement parameter measurement modules, two external device modules, a security monitoring system and an electro-pneumatic valve amplifier, an indication unit is configured to prepare information necessary for the driver, its registration and indication, interaction with the driver through the vigilance knob and buttons for entering information, entering and displaying locomotive and train characteristics to, the current time, the actual speed and their conservation when the power is turned off and includes a registration module, a control module and an indication module, a switching unit is configured to turn on the power of the device, make its connections with peripheral equipment, and also switch communications when changing the control cabin locomotive, and includes a node for generating data on the state of the locomotive control circuits, characterized in that two independent from each other are introduced into the stationary device

Description

The utility model relates to railway transport and can be used at railway stations equipped with interval control system equipment to improve traffic safety and increase the speed of trains passing through the station.

A comprehensive unified locomotive safety device is known in which the electronics, indication, switching and data input units located in the driver’s cab are connected and interconnected by a cable of the system CAN interface in an open real-time system with a modular architecture. The electronics unit is capable of determining the permissible speed mode and exercising control over its observance by fixing feedback signals from the driver’s vigilance handle, internal background testing of each module, as well as two-channel information processing, and includes two central information processing modules, a route module , digital radio channel module, two modules for measuring motion parameters, two modules for external devices, a security monitoring system and an electro-pneumatic amplifier matic valve. The display unit is configured to prepare the information necessary for the driver, register and display it, interact with the driver through the safety knob and buttons for entering information, enter and display locomotive and train characteristics, current time, actual speed and save them when the power is turned off and includes registration module, control module and display module. The switching unit is configured to turn on the power supply of the device, make its connections with peripheral equipment, and also switch connections when changing the control panel of a locomotive and includes a node for generating data on the status of control circuits of a locomotive (RU 2248899, B61L 25/04, 03/27/05) .

The disadvantage of this device is the low throughput and fault tolerance, the lack of the ability to force stop the mobile unit at the command of the station attendant or train dispatcher, as well as the limited functionality and the high impact of the human factor on traffic safety.

Closest to the claimed utility model is a system of interval regulation of train traffic based on satellite navigation aids of a digital radio channel with a coordinate control method, containing connecting cables of the system CAN-interface electronics, indication, switching and data input units located in the driver’s cab, an electronics unit made with the possibility of determining the permissible speed mode and monitoring its compliance by fixing feedback signals Based on the driver’s vigilance knob, internal background testing of each module, as well as two-channel information processing, it includes two central information processing modules, a route module, a digital radio channel module, two modules for measuring motion parameters, two external device modules, a security monitoring system and an amplifier of an electro-pneumatic valve, an indication unit is configured to prepare the information necessary for the driver, register and display it, and interact with the driver through the control handle and buttons for entering information, entering and displaying locomotive and train characteristics, current time, actual speed and saving them when the power is turned off and includes a registration module, a control module and an indication module, a switching unit is configured to turn on the power of the device, its connections with peripheral equipment, as well as switching communications when changing the control cab of a locomotive and includes a node for generating data on the status of the chain locomotive control (RU 93766 U1, B61L 23/34 05/10/10).

The disadvantages of this device is that the system does not provide information from electrical centralization devices of the station about the status of objects located at the station and the transmission of this data to the on-board device, this leads to a decrease in the reliability of control and the safety of train traffic.

The technical result of the proposed utility model is to increase traffic safety and increase the speed of movement around the station by reducing the number of failures in reception of ALSN codes using digital radio communications, coordinate monitoring of locomotives located in the radio coverage area, and saving traffic light readings on the locomotive display unit.

The technical result is achieved by the fact that, in the system of interval control of train traffic, which contains a stationary device and a locomotive device, consisting of interconnected electronics, indication, switching and data input units located in the driver’s cab, the electronics unit is configured to determine the permissible speed mode and monitoring its compliance by fixing feedback signals from the driver’s vigilance knob, internal background testing each about the module, as well as two-channel information processing and includes two modules for measuring central information processing, a route module, a digital radio channel module, two modules for measuring motion parameters, two external device modules, a security monitoring system and an electro-pneumatic valve amplifier, an indication unit is configured to preparation of information necessary for the driver, its registration and indication, interaction with the driver through the vigilance knob and buttons for entering information, entering and selecting locomotive and train characteristics, current time, actual speed and their preservation during a power outage and includes a registration module, a control module and an indication module, a switching unit is configured to turn on the device’s power supply, make its connections with peripheral equipment, and switch connections when changing the control cabin of a locomotive and includes a node for generating data on the state of the control circuits of the locomotive, according to the proposal in a stationary device Two independent expansion units of a controlled point with functions for reading the status of code-including relays of electrical centralization of the station and transmitting data on relay contacts state to independent processors of the interval control system were introduced to each processor; each expansion unit of a controlled point includes an information reading unit whose input is connected to the output interface devices, and the output with the input of the conversion and signal generation unit, the first output of which is connected to the memory unit, and in the second output with the input of the signal reception and transmission unit, the ports of the memory unit and the signal reception and transmission unit are connected to the personal computer of the workstation of the stationary device.

Structurally, the system is made in the form of blocks, the modules interact through the intermodular interface.

The drawing shows a functional diagram of a system of interval regulation of train traffic.

Locomotive device 1 includes:

- electronics block 4, intended for processing information received via the radio channel, parameters from track and speed sensors, satellite navigation receiver, signals from receiver coils, vigilance control systems, signal from Alarm button 3, block 4 analyzes the received information and generates control impact on the electro-pneumatic valve 8 EPV, the prefix of the crane driver 7 PCM and the traction circuit, antenna 2 GPS / GLONASS, radio modem 5, and also transmits data for display to the display unit 10, control commands on the PCM 7 and EPV 8;

- the radio modem 5 is intended for the exchange of information between the locomotive device 1 and the stationary device 14 via a digital radio channel;

- a power source 6 intended for powering the locomotive device 1 from the battery of a locomotive or traction rolling stock of a TPS with a direct current voltage of 48 V (not shown in the drawing);

- Button 3 "Alarm" is used to additionally alert the station duty or train dispatcher about an emergency situation on a locomotive or traffic control system;

- indication unit 10, is intended for indication, input / control of locomotive characteristics, input / control of train characteristics, indication of responsible commands received via the radio channel, system test and storage of traffic light indications;

- GPS / GLONASS antenna 2 is used as part of the navigation equipment of electronics unit 4;

- PKM 7 and EPV 8 are designed to control the train system of the train;

- the RK11 antenna interacts with the radio modem 5 through the duplex filter 9;

- BPS 12 is designed to exchange data on the coordinate of the tail of the train with other locomotives;

- the antenna 13 is designed for reception and transmission to the radio data.

Stationary device 14 includes:

- a personal computer 18 of the automated workstation of the interval control system, interacting with the radio modem 22 via the intermodule interface;

- the receiver 16 GPS / GLONASS synchronizes the operation of the stationary device 14, with the aim of organizing the temporary separation of broadcasting on a digital data channel, and also provides reception and decoding of the geographical coordinates of the location;

- antenna 15 GPS / GLONASS is used as part of the receiver 16 GPS / GLONASS;

- the radio modem 22 provides for the exchange of digital information with a given speed between the PC PC personal computer 18 and a similar locomotive device having the same operating frequency and information transfer protocols;

- lightning arrestor 25 is designed to protect devices from atmospheric overvoltage;

- PC AWP 18 is a computer workstation, the monitor of which displays the station plan and adjacent hauls with a conventional graphic image and indication, information received from the locomotive via a digital radio channel with time and date, as well as the protocols of the stationary device 14;

- PC ARM 18 receives data from the GPS / GLONASS receiver 16 about the coordinate and exact time, data on the status of track objects from the expansion units of the controlled points 19, 20 of the air control system connected via the interface device 21 to the electrical centralization systems of the electronic control center, centralized dispatch centralization, and supervisory control DK and autoblock AB;

- the uninterruptible power supply device 26 of the UPS ensures a guaranteed supply voltage at the output with maintenance-free batteries with the possibility of "hot" replacement;

- RK antenna 17 is used in conjunction with a radio modem 22 and a duplex filter 24;

- surge protector 23 protects the power supply circuit of computer equipment from surge surges and high-frequency interference. The filter is connected through the uninterruptible power supply unit 26 of the UPS to the network;

- duplex filter 24 ensures the operation of the transmitter and receiver on the antenna 17 with minimal mutual influence and without compromising the quality of reception;

- the interface device 21 is used for linking with the systems of EC, DC, DC and AB;

- two independent from each other expansion units of the controlled items 19 and 20 BRKP, each of which includes an information reading unit 28, the input of which is connected to the output by the interface device 21, and the output to the input of the conversion and signal generation unit 27, the first output of which is connected to the input of the memory unit 30, and the second output with the input of the signal reception and transmission unit 29, the ports of the blocks 29, 30 are connected to the inputs of the personal computer of the automated workstation 18 of the PC AWP, and are used to read the status of code-switching relays EC, DC, DC, DC, AB stations, converting information from an analog representation to digital and transmitting data to two independent processors of the interval regulation system about the state of contacts, as well as improving reliability in case of failure or breakdown of one of the blocks.

The system of interval regulation of train traffic implements the functions:

- non-passage of a closed traffic signal in an uncoded area upon command from a personal computer of an automated workstation;

- transmission of a command to permit the investigation of a prohibited traffic signal using train radio communication;

- transmission of the coordinates of the tail ahead in order to follow the traffic light with a yellow indication without reducing speed;

- reception of the Alarm signal on the AWP PC from any mobile unit;

- targeted forced braking of one locomotive on command from the PC AWP;

- targeted cancellation of forced braking of traction rolling stock on command from the PC AWP;

- simultaneous forced braking of all locomotives on command from the PC AWP;

- cancellation of the simultaneous forced braking of all TPNs on command from the PC AWP;

- saving traffic light indications on a locomotive display unit when driving along short coded switch sections during short-term alarms of the ALSN.

The system of interval regulation of train traffic with the function of storing traffic lights during short-term failures of the ALSN operates as follows.

The station device 14 begins to work immediately after turning on the uninterruptible power supply device 26, after which messages are transmitted from the workstation PC via the serial interface to the radio modem 22 to the radio antenna 17 in accordance with the interaction algorithm.

The locomotive device 1 begins to work immediately after turning on the uninterruptible power supply 6. The signals from the station device 14 are transmitted through the radio channel to the locomotive device 1, and through the duplex filter 9 and the radio modem 5 enter the electronics unit 4 in accordance with the interaction algorithm. The signals from the antenna 13 enter the packet communication unit 12, and from it the data arrives at the electronics unit 4. The signals from the antenna 2 enter the navigation receiver (not shown in the drawing), which is part of the electronics unit 4, which generates data on the location of the device ( latitude, longitude). These data are sent to the central processor (not shown) of the electronics unit 4, where the location of the locomotive device in the railway coordinates (meters) is determined.

In the event of an emergency on the locomotive, the driver or assistant driver while following the button 3 "Alarm" in the communication zone with the station and transmits to the station device 14 a signal about the need to force stop the locomotive.

In the station area, PK AWP 18 analyzes the train situation and transmits the coordinates of the tail of the train ahead to the locomotive.

After receiving a signal for a forced stop from the stationary device 14, the locomotive traction is disassembled and service braking begins through the prefix 7 of the PKM driver’s crane, and the EPV electro-pneumatic valve 8 will automatically brake the locomotive, and on the display unit 10 of the locomotive device 1, the sign of a forced stop of the locomotive is displayed .

At the time of the forced stop of the locomotive, the locomotive crew is prohibited from interrupting the process that has begun.

After the locomotive stops completely, the train driver uses the train radio to find out the reason for the stop with the duty officer at the DSP station or with the train dispatcher at the DSC.

After the cancellation of the command to force stop the electro-pneumatic valve 8 EPV is installed in the working position.

The transmission of the prohibition signal travel command upon command from the PC AWP 18 is performed in the following sequence.

The station attendant or train dispatcher, making sure that there is a stable radio mode with mobile units and that the mobile unit stops in front of a traffic light with a red indication, sends a command to enable the prohibition signal through the APM18 PC. After obtaining permission to travel the inhibitory signal on the display unit 10 before the start of movement, the value of the permissible speed of the moving unit will be set to 20 km / h, and the signal “QOL” on the display unit 10 will change to “BM”. After this command is canceled by the station attendant or train dispatcher, the prohibition of the prohibition signal passage is canceled.

The stationary device 14 transfers to the locomotive temporary speed limits, as well as the calculation and testing of the locomotive braking curve to the point of limiting the speed of movement, is carried out in the following sequence:

- the duty officer at the chipboard station or the train dispatcher of the DSC introduces the characteristics of speed limits and makes sure that there is a stable radio mode with mobile units;

- after receiving from the stationary device 14 a temporary speed limit, the locomotive device 1 fulfills the calculated braking curve when approaching the place of speed limit.

The person on duty at the DSP station or the train dispatcher at the Center is convinced of the existence of a stable two-way radio communication with mobile devices. When the locomotive is in an uncoded area at the locomotive traffic light, the indication that was transmitted to him by radio is displayed, namely:

- data transfer rate - not less than 9600 bits per second;

- the number of serviced mobile objects by one station device is 20 units;

- minimum access time (1 stationary device and 1 locomotive device) 200 ms;

- allowable boundary values of the interval: from 200 ms to 10,000 ms;

- the maximum amount of information transmitted per 1 message is 50 bytes;

- stationary devices are leading in the organization of radio exchange. The radio channel exchange algorithm between locomotive and stationary devices is as follows.

The exchange of data between locomotive and stationary devices consists of 2 stages:

- identification procedure of the locomotive device 1;

- exchange between the stationary device 14 and the locomotive device 1 after identification.

The identification procedure of the locomotive device 1 operates as follows.

The interval between messages of the stationary device 14 is determined during the setup of the program and varies from 200 ms to 10,000 ms.

The identification procedure of the locomotive device 1 occurs when he answers the invitation. After sending the invitation, the stationary device 14 does not transmit messages for 3 intervals. The locomotive device 1, using the random number procedure, responds to the invitation.

The invitation is transmitted normally (in the presence of registered locomotive devices 1) and not normally (in the absence of registered locomotive devices 1). In normal mode, every 60 (according to the setting) intervals, an invitation is sent. In non-standard mode, the invitation is transmitted continuously (subject to the agreed interval).

If the railway coordinates of the locomotive device 1 are within the received zone of responsibility transmitted in the invitation, then the locomotive device 1 responds to the invitation.

The exchange between the stationary device 14 and the locomotive device 1 after identification occurs as follows.

After the identification of the locomotive device 1, the stationary device 14 transmits a request with a set interval to which the locomotive device 1 responds. Messaging is carried out in the area of responsibility specified in the settings of the stationary device 14.

The termination of the transmission of messages of the locomotive device 1 occurs when the locomotive device 1 leaves the zone of responsibility, or in the absence or receipt of incorrect messages from the locomotive device 1 within 10 messages.

All address messages are subject to mandatory acknowledgment. In case of transmission of a broadcast message (stop / cancel stop command for all locomotives equipped with locomotive device 1 located in the radio communication zone), acknowledgment does not occur.

The interaction of station 14 and locomotive 1 equipment occurs in the station zone, areas of approach and removal.

The stationary device 14 provides two-way communication with the locomotive device 1 through a digital channel having the following characteristics:

- range of working frequencies (146-174) MHz

- transmitter output power 10 W;

- receiver sensitivity at a s / w ratio of 12 dB, not more than 0.3 μV;

- the probability of error at an input signal level of 2 μV;

The implementation of the function of saving the traffic light during short-term failures of the ALS is as follows:

- information, in the form of an analog signal about the status of the contacts of the code-enabling relays, simultaneously arrives from the EC system through the interface device 21 to independent duplicating expansion units of the control point 19, 20, where the states of the code-including relay of the station are read, information is converted from analog signal to digital and data transfer to a personal computer of the workstation 18 and then to two independent processors of the interval control system on the status of the contact such as are for;

- the information exchange channel between the expansion units of the controlled item 19, 20 and the personal computer of the workstation 18 is organized using an asynchronous industrial interface RS-485;

- the personal computer of the workstation 18 starts polling the device from identification requests to the expansion units of the controlled item 19, 20 at the addresses specified in the configuration, to check the availability and correctness of the addresses in the devices themselves. After receiving a response to identification requests, expansion units of controlled item 19, 20 are considered detected;

- the personal computer of the workstation 18 regularly sends requests for the status of controlled inputs to the addresses detected by the expansion units of the controlled item 19, 20. To a correctly received request, the expansion units of the controlled item 19, 20 form responses that confirm the reception and status of the controlled inputs to current time;

- generation of data on the availability of coding transmitted over the air;

to the locomotive device 1, is performed by the personal computer of the workstation 18 after processing the received data from the expansion units of the controlled item 19, 20 in accordance with the status of the code-switching relays and the current location of the locomotive;

- if a “Z” code (green) occurs in floor-mounted devices, namely, on short arrow sections, locomotive devices, in accordance with the sign of coding received via the radio channel, store “Z” (green) readings on display unit 10 of the locomotive device 1 in within the set time allowed in the delay zones.

Claims (1)

The system of interval control of train traffic, containing a stationary device and a locomotive device, consisting of interconnected electronics, indication, switching and data input units located in the driver’s cab, the electronics unit is capable of determining the permissible speed mode and monitoring its compliance with fixing feedback signals from the driver’s vigilance handle, internal background testing of each module, as well as two-channel processing formations, and includes two measurement modules for central information processing, a route module, a digital radio channel module, two movement parameter measurement modules, two external device modules, a security monitoring system and an electro-pneumatic valve amplifier, an indication unit is configured to prepare information necessary for the driver, its registration and indication, interaction with the driver through the vigilance knob and buttons for entering information, entering and displaying locomotive and train characteristics to, the current time, the actual speed and their conservation when the power is turned off and includes a registration module, a control module and an indication module, a switching unit is configured to turn on the power of the device, make its connections with peripheral equipment, and also switch communications when changing the control cabin locomotive, and includes a node for generating data on the state of the locomotive control circuits, characterized in that two independent from each other are introduced into the stationary device expansion unit of the controlled item with the functions of reading the status of the code-switching relays of the electric centralization of the station and transmitting to the independent processors of the interval control system the relay contact data, each expansion unit of the controlled item includes an information reading unit, the input of which is connected to the output of the interface device and the output to the input block conversion and signal generation, the first output of which is connected to the memory unit, and the second output to the input of the reception and transmission unit signals, ports of the memory unit and the unit for receiving and transmitting signals are connected to a personal computer of an automated workstation of a stationary device.

Images