RU83228U1 - PASSENGER TRAIN SECURITY AND COMMUNICATION SYSTEM - Google Patents

Abstract

1. The security and communication control system of a passenger train, comprising a central control system and DECT base stations, with each base station connected to a central control system, and a cross-polarized antenna mounted on the roof of the car is connected via cable to each DECT base station via RF connectors in the antenna module, at least one device for transmitting alarms from railway car alarm systems by generating voice messages for transmission to their conductor at least one wearable terminal for receiving alarms and two-way automatic telephone communications, at least one repeater for amplification, and at least one hazard signaling button, connected to the car’s emergency and fire alarm system outputs characterized in that the wearable terminal for receiving signals about accidents and two-way automatic telephone communication is a microassembly made on a printed circuit board on which the module is installed centrally processor, power circuit, microphone interface, speaker interface, internal synchronization circuits, read-only memory and radio module, while these circuits are connected to the central processor. ! 2. The system according to claim 1, characterized in that it further comprises a satellite communications station. ! 3. The system according to claim 1, characterized in that it further comprises a laptop computer train chief. ! 4. The system according to claim 1, characterized in that it further comprises at least one payphone. ! 5. The system according to claim 1, excellent

Description

The technical solution relates to the field of wireless communications, namely, radio communications between subscribers, at least one of which is located in the vehicle, and can be used to provide the passenger train with wireless address emergency alarm and intercom.

This development is intended for use in communication systems on passenger trains of commuter and long-distance for the purpose of organizing communication channels and transmitting alarm signals. The device was developed on the basis of DECT technologies and allows equipping passenger trains with data and telephony devices, preferably taking into account the existing system of flexible formation of the composition of the passenger train, consisting of headquarters and passenger cars.

This development belongs to the type of devices known as a “complex system” (according to the definition introduced in the Great Polytechnic Dictionary (M., Big Russian Encyclopedia, 1998, p. 488)).

In the future, when characterizing the claimed technical solution, the following terms and concepts will be used:

- “address” alarm - an alarm transmitted to a predetermined subscriber (or group of subscribers) in automatic mode and in a predetermined sequence.

- central control system - a device that controls the operation of base stations included in the system, made on the basis of a PC.

- proprietary telephone - a device that visually displays the status of connections in the network and allows direct connection with subscribers and performing configuration operations.

Known (RU, patent 2058670 Н04В 7/26, 1996) is a train dispatch communication system characterized by the presence of a dispatch control panel connected to stationary radio stations of a dispatch communication circle via a primary or backup wire communication line, each radio station consisting of a block of switches connected in series a selective connection block, a linear block and a transceiver connected to the antenna, the signal inputs of the switch block being the outputs of the main and backup links wired communication, one of the control inputs of the switch block is connected through the linear block to the output of the transceiver, the second output of the first selective amplifier is connected to the second input of the selective connection block, and a second selective amplifier is introduced into each stationary radio station, the input of which is connected to the output of the transceiver, the first and the second control signal shapers, the inputs of which are connected to the outputs of the first and second selective amplifiers, respectively, and the outputs to the second and third the control inputs of the switch block, while the input of the block of selective connection through one of the contacts of the switch block is connected to the output of the main or backup wired communication lines. The switch block can be made in

in the form of series-connected keys with separate control circuits of a selective connection.

A disadvantage of the known technical solution is the lack of automatic remote control of the state of the vehicle.

Also known (RU, patent 2206177 Н04В 7/26, 2003) is an on-board communication network of rolling stock, characterized by the presence of a control and diagnostic panel (wearable console of the train head), in each carriage of rolling stock terminal devices (in the form of mobile radiotelephones for staff and passengers , radio sensors and executive devices of the car automation system, miniature video surveillance terminals and other necessary devices) and a unified switching unit (in the form of a base station), a digital radio link connecting the on-board to there are communications between the rolling stock and external communication systems, moreover, the connection between the terminal communication devices and the unified communication node, as well as between adjacent unified switching nodes, is carried out via the radio channel, while the frequency range and level of the radio signal in the radio channel are selected so that the communication terminal devices only communicate with a unified switching unit of the car in which the communication terminal devices are currently located, and the control and diagnostics panel is mobile m and communicates on the radio channel with the unified switching unit of the car in which the remote control and diagnostics is currently located.

Known on-board communication network operates as follows. The control and diagnostic panel (wearable terminal of the train chief) transmits and receives a radio signal anywhere in the train

through a network of unified switching nodes, both when a train head receives a radio signal from a terminal device, and when a radio signal is transmitted to a terminal device, including when a passenger talks on a personal mobile phone with a subscriber remote from the train.

A disadvantage of the known on-board system should be recognized as the presence of only one control panel and diagnostics made in the form of a wearable version of the train head, a large number of switching nodes and the lack of automatic control of the condition of the car.

The closest analogue of the developed system can be recognized (RU, patent 0046895, 2005) as a passenger train safety and communication control system characterized by the presence of a central control system and DECT base stations, with each base station connected to a central control system, to each DECT base station via RF the connectors are connected by two antennas mounted on the roof of the car, at least one device for transmitting alarms from the alarm systems of the railway car by forming I have voice messages for transmission to the wagon conductor and the head of the train, including the DECT radio socket, a voice auto-informant, a wearable terminal with a keypad, and an alarm transmission device connected to the outputs of the car’s emergency and fire alarm systems, at least one wearable conductor terminal for receiving signals about accidents and two-way automatic telephone communications, at least one repeater for amplifying radio signals, at least one handset in

service compartment conductors and at least one hazard alarm button.

A disadvantage of the known security and communication control system of a passenger train should be recognized as the difficulty of its use subject to the flexible formation of the train, i.e. replacement of cars included in the passenger train. In the event of a change in the composition of the wagons that make up the passenger train, the use of the known system does not automatically determine which of the wagons the emergency occurred, since the known system does not automatically link each wagon of the passenger train to the head-car, in which all emergency situations are recorded occurring in this train.

The technical problem solved by the proposed developed system is to develop an improved design for signaling and communication of a passenger train.

The technical result obtained by the implementation of the proposed system is to increase the safety of operation of a passenger train in a flexible formation of the composition of the passenger train.

To achieve the technical result, it is proposed to use a passenger train safety and communication control system containing a central control system (CSC) and DECT base stations, with each base station connected to a central control system, and a cross cable is connected to each DECT base station via RF connectors -polarized antenna mounted on the roof of the car in the antenna module, at least one device for transmitting alarms from alarm systems

railway carriage by generating voice messages for transmission to the carriage conductor and train head, connected to the outputs of the car’s emergency and fire alarm systems, at least one repeater for signal amplification, at least one wearable terminal, intended, firstly, for receiving emergency signals, such as the axle box overheating signal, fire alarm, secondly, for official voice communication with the train crew of the head carriage or the conductors of other train cars, thirdly To call a police officer if necessary (emergency alarm), and at least one hazard alarm button, the wearable terminal for receiving alarms and two-way automatic telephone communications is a microassembly made on a printed circuit board on which a central processor module is installed, circuits power, microphone interface, speaker interface, internal synchronization circuits, read-only memory and radio module, while these circuits are connected to the central new processor. The system may further comprise a satellite communication station, which will provide reliable communication from the train. In addition, the system may additionally contain a laptop for the train commander, which provides fast processing of information signals from train cars. The system may further comprise at least one payphone, which will provide a stable communication channel for passengers. The system may additionally contain at least four antennas mounted on the roof of the car, at least two of which are made with a circular radiation pattern, and at least two antennas are made directed with

providing maximum radiation along the composition. Typically, the system contains (depending on the length of the composition and other operating conditions of the system) from 1 to 16 DECT base stations. In a preferred embodiment, the keyboard of the wearable terminal comprises emergency keys for the train chief, police officer and train electrician.

The developed system, when implemented in its full version, provides:

1. Automatic transmission of voice signals about emergency situations in wagons to officials of the train crew located at any point of the moving train or on the platform at a distance of up to 500 meters from the wagon in the line of sight.

2. Two-way automatic telephone communication between subscribers in the passenger train, both in the parking lot and on the move.

3. Transmission of emergency messages by the train manager from a portable terminal or system telephone.

4. Telephone communication of the train head with subscribers of the public telephone network.

5. Data transmission via satellite communication channel when using the laptop of the train chief;

6. Providing telephone services to passengers.

The structure of the proposed system includes the following nodes and elements:

a) the central control system combines the functions of switching equipment and connection control devices in the system. The central control system controls the DECT base stations in an amount of 2 to 16 units, which are mounted on the roof of the head carriage in antenna

modules. The antenna module is a case, in which there are 2 DECT base stations, a heating system, 2 cross-polarized antennas. In the antenna module, each base station is connected by two RF connectors with a wave impedance of 50 Ohms with short cables (not more than 0.15 m), to reduce the distortion of the DECT signal, to a cross-polarized antenna. Each antenna module is connected to the central control center by a shielded twisted pair cable, through which control and power supply of DECT base stations with a constant voltage of 48 V, power consumption is not more than 50 W, as well as a power cable for the antenna module heating system. The dimensions of the Antenna module are not more than 182 × 623 × 180 mm, and the mass is not more than 4.7 kg.

b) The alarm transmission device (hereinafter, the UPAS repeater) is intended for radio transmission to the central control system of alarm signals from existing car alarm and fire alarm systems to the wearable terminal for train crew officials located anywhere in the moving train and headquarters car to the workplace of the train chief. The UPAS repeater is also designed to amplify (relay) the signals transmitted from the central control system to wearable terminals and vice versa. The UPAS repeater can be connected via a TNC type connector with an RF cable with a wave impedance of 50 Ohms to an antenna located preferably on the roof of the car for correct operation in the DECT standard with antenna modules located on the roof of the head car (car with a radio compartment). The UPAS repeater has a socket for charging the wearable terminal with a constant voltage of 6 V, as well as a socket for charging an additional battery of the wearable terminal with the same

voltage. The same slot is used to register a wearable terminal in SKBiSPP. On the front panel of the UPAS repeater there is a microphone, speaker, shortcut keys for the train head, depot, police officer, TEM and the conductor of the current car, as well as a key for starting the registration procedure for the wearable terminal in SKBiSPP, as well as an indicator for the beginning / end of the registration procedure for the wearable terminal, as well as an indicator of the readiness of the UPAS repeater to work. The UPAS repeater is also connected simultaneously to the existing car alarm and fire alarm systems. The UPAS repeater is powered by a constant voltage of 55-110 V. Power consumption is not more than 10 W;

c) The wearable terminal is made using DECT technology and is designed to connect the subscriber via a radio channel to the central control system. The wearable terminal also has a bright red panic button, which the train crew can use in case of a threat from public order violators or other incidents. When it is pressed, the UPAS repeater automatically dials the number of the police officer, pronounces the five-digit number of the car, and then “Alarm”. Also on the keyboard of the wearable terminal there are shortcuts for a police officer, train chief and train electrician.

d) Satellite communications and navigation equipment (hereinafter ACCH), receives the current coordinates of the train using the built-in GLONASS / GPS receiver, processes them and sends them via Inmarsat or GSM channels to the server for display in the situational center and for binding to the GIS of Russian Railways, monitors and transmits to the situational center alarms generated by UPAS-

by repeaters of the train, it gives the train commander the opportunity to send a message to the situation center, provides the ability to make outgoing and incoming calls through the Inmarsat international network. ACCH has overall dimensions 365 × 400 × 113, weight 8.5 kg.

The wearable terminal combines a display, a keyboard and a built-in handset for making voice calls. The terminal can be connected to the central control system for organizing voice calls from a wearable terminal or system telephone;

The micro assembly used is used to transmit registration information to the UPAS repeater. It is preferably made in the form of a printed circuit board placed in a plastic case, and on this printed circuit board there is an electromagnetic reader made in the form of a microcontroller with an antenna, a microprocessor, an interface circuit for connecting to a UPAS repeater, an indicator for displaying the number of the car, and if necessary, auxiliary elements.

In this case, an oscillatory circuit is connected to the inputs of the microcontroller, which acts as a transmitter of the activating frequency and consists of a quartz element and auxiliary elements. A microprocessor is connected to the information input of the microcontroller to transmit registration information. Diodes are connected to the microprocessor inputs, which are a 2-digit digital indicator of the number of the used magnetic electronic registration key installed in the microassembly.

When implementing the proposed system, the following equipment is placed in the office compartment of the train chief: the central control center, the memory unit for three wearable terminals, the ACCH, a system telephone, an electrical power device, and wearable terminals. In this case, the central control system has a wall mount and can be mounted on the side wall of the compartment. The proprietary telephone is mounted on the table. The portable terminal charger has mounting holes for wall mounting. ACCH has a wall mount.

The following equipment is placed in the service compartment of the carriage conductor: UPAS repeater, antenna output, wearable terminal, hazard alarm button.

All antennas and antenna modules are installed on the roof of the car, and UPAS repeaters inside the car. The UPAS repeater has mounting holes for wall mounting.

ACCH is placed as follows - the antenna on the roof of the head car in the area of the radio compartment, ACCH block - in the compartment of the train head.

To organize duplex radio communication between subscribers in the DECT system, the radio frequency band 1880 - 1900 MHz is used, in which 10 physical radio channels (carriers) with a bandwidth of 1.728 MHz are located. To organize talk channels on each carrier frequency in the time domain, a breakdown was made into frames of 10 ms duration containing 12 pairs of time slots (using the time division multiple access method - TDMA). Duplex transmission mode is ensured by using the time division method (TDD), in which during the first half of the TDMA frame, information is transmitted alternately on 12

conversational channels from the base station to wearable terminals, and during the next half - in the opposite direction.

The system operates in a continuous dynamic channel redistribution mode, i.e. the base station can automatically select the carrier frequencies, finding the available free carrier frequency and choosing the best (in terms of quality) free communication channel. If there is no free carrier frequency, the system automatically provides repeated connection setup requests. Thus, the frequencies are reused automatically, and the reuse pattern changes from connection to connection.

The operation of the station can be illustrated by the following examples:

1.Bo while the train is in the service compartment of the car, the “overheat axle” alarm is triggered. The conductor at this time is at the other end of the car, serving passengers. The UPAS-repeater of the carriage dials the telephone number of the conductor and transmits the “five-digit” number of the carriage by voice and then “heats up the box”, the same voice message is transmitted to the train head for decision.

2. At the station, when boarding passengers, a fire alarm is triggered in the service compartment of the conductors. The conductor at this time is on the platform. The UPAS repeater dials the number of the wearable terminal of the conductor and the head of the train and transmits the voice message "Fire and the five-digit number of the car." Having received this message, the conductor checks the car and detects passengers smoking in the wrong place. The wearable terminal immediately reports to the train chief about eliminating the cause of the fire alarm.

3. At night, a bully fight ensued in the car. The conductor calls a police outfit on the wearable terminal, which restores proper order.

4. Attackers block the wagon conductor, not allowing him to call and call for help. The conductor presses the hidden hazard alarm button, and the automation dials the number of wearable terminals of the transport police patrol and the train chief and transmits a voice message "Danger and five-digit car number."

5. A breakdown occurs in the generator of the car, the conductor serves passengers at this time, the UPAS repeater dials the number of the wearable terminal of the car conductor and tells him the “five-digit” number of the car and the “generator”

In this embodiment, the system provides:

1. Receiving alarms from car fire alarm systems, axle box overheating alarms, wheel lock alarms, and also from a hazard alarm button.

2. Formation of voice information corresponding to the received alarms and its transfer to wearable terminals to officials of the train crew.

3. Automatic telephone communications to officials of the train crew.

The specified voice message transmitted in emergency situations consists of:

- assigned car number (five digits);

- the words “Fire”, “Generator”, “Heated axle box” or “Alarm”. The voice message transmitted when the hazard alarm button is pressed is transmitted to the head of the train and the transport police and consists of:

- assigned car number (five digits);

- the words "Anxiety."

In the case of using a satellite communications station, which is part of the ACCH, in the staff carriage, the Inmarsat BGAN system provides the following options for organizing communication and information transfer:

- transmission of emergency messages on the train by the train head to the depot or to the nearest station;

- telephone communication of the train head with subscribers of the public telephone network;

- - data transmission via satellite communication channel when using the computer of the head of the train built into the ACCH;

- - telephone communication of the transport police patrol with the leadership and the ability to receive and transmit passport data and photographs of wanted persons.

Claims (7)

1. The security and communication control system of a passenger train, comprising a central control system and DECT base stations, each base station being connected to a central control system, and a cross-polarized antenna mounted on the roof of the car is connected via cable to each DECT base station via RF connectors in the antenna module, at least one device for transmitting alarms from railway car alarm systems by generating voice messages for transmission to their conductor at least one wearable terminal for receiving alarms and two-way automatic telephone communications, at least one repeater for amplification, and at least one hazard signaling button, connected to the car’s emergency and fire alarm system outputs characterized in that the wearable terminal for receiving signals about accidents and two-way automatic telephone communication is a microassembly made on a printed circuit board on which the module is installed centrally processor, power circuit, microphone interface, speaker interface, internal synchronization circuits, read-only memory and radio module, while these circuits are connected to the central processor. 2. The system according to claim 1, characterized in that it further comprises a satellite communications station. 3. The system according to claim 1, characterized in that it further comprises a laptop computer train chief. 4. The system according to claim 1, characterized in that it further comprises at least one payphone. 5. The system according to claim 1, characterized in that it contains at least four antennas, and at least two of which are made with a circular radiation pattern, and at least two antennas are made directional with a maximum radiation along the composition . 6. The system according to claim 1, characterized in that from 1 to 16 DECT base stations are used. 7. The system according to claim 1, characterized in that the keyboard of the wearable terminal contains emergency keys for the head of the train, police officer and train electrician.