RU75813U1 - PERIPHERAL RADIO CONTROLLER - Google Patents

Abstract

The invention relates to the field of railway transport, and in particular, to the field of railway safety equipment, and can be used to provide a passenger train with a wireless address emergency alarm and internal communication. The peripheral radio controller is made in the form of a micro-component assembly. It contains the microprocessor SC14425AVV, which performs the function of a central processor, to which are connected the power supply circuit, microphone interface, speaker interface, internal synchronization circuits, read-only memory and radio module.

Description

The invention relates to the field of railway transport, and in particular, to the field of railway safety equipment, and can be used to provide a passenger train with a wireless address emergency alarm and internal communication.

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.

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 diagnostics 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), a unified switching unit (in the form of a base station), a digital radio link connecting the on-board network zi rolling stock with external communication systems, and the connection between the communication terminal devices and

a unified communication node, as well as between adjacent unified switching nodes, are carried out via a radio channel, while the frequency range and the level of the radio signal in the radio channel are selected in such a way that the communication terminal devices communicate only with the unified switching node of the car in which the communication terminal devices are currently located , and the control and diagnostics panel is made mobile and communicates over the air with a unified switching unit of the car in which the control and diagnosis Ostiki is currently located.

Known on-board communication network operates as follows. The control and diagnostic panel (wearable terminal of the train head) transmits and receives the radio signal at any point of the train through a network of unified switching nodes, both when the train head receives the radio signal from the terminal device, and when transmitting the radio signal to the terminal device, including during a passenger conversation by 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. In addition, the lack of the ability to automatically monitor the condition of the car, especially when replacing the cars included in the passenger train, i.e. the existing system of flexible composition formation.

Also known (RU, patent 0046895, 2005) is a security and communication control system for a passenger train, characterized by the presence of a central control system and base stations

DECT, with each base station connected to the central control system, two antennas mounted on the car roof of at least one alarm transmission device from the railway car alarm systems by generating voice messages to each DECT base station via RF connectors transmitting them to the wagon conductor and the head of the train, including the DECT radio socket, a voice autoinformer, a wearable terminal with a keypad, and the transmission device is emergency the signals are 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 the service compartment of the conductors and at least one button hazard warning.

The repeater used in the system, combined with an alarm transmission device and with a terminal subscriber radio unit, is designed to organize a radio access zone within a separate passenger carriage with subsequent transmission of information to the DECT base stations of the system.

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.

The technical problem solved by the proposed invention is to develop an improved alarm system 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 while increasing the level of service in a flexible formation of the composition of a passenger train.

To achieve the indicated technical result, it is proposed to use a peripheral radio controller in the known system made in the form of a micro-component assembly characterized by the presence of the SC14425AVV microprocessor, which performs the function of a central processor, to which are connected in a known manner power circuits, microphone interface, speaker interface, internal synchronization circuits, read-only memory and a radio module.

In addition, a microphone and / or speaker can be connected to the micro-assembly.

The peripheral radio controller has the following specifications:

- electrical characteristics:

- supply voltage: 6

(constant / variable) B;

- radio standard: DECT.

- mechanical parameters:

- Operating temperature range: 0-45 ° C; - Storage temperature range: -50- + 50 ° С.

A peripheral radio controller is a radio electronic device that combines the functions of a terminal subscriber radio unit (TARB) and a DECT repeater (repeater). As TARB, peripheral

The radio controller is designed to organize a voice radio channel within the framework of specialized DECT intercom systems. As a repeater, the peripheral radio controller is designed to organize a local coverage area (radio access) of DECT compatible devices, including wearable terminals, with the subsequent transfer of the schedule to the DECT base stations of the central control center (central control system).

In the basic version, the peripheral radio controller is made in the form of a micro-component assembly and consists of the following main modules: a central processor (DSP), to which are connected the power circuit, microphone interface, speaker interface, internal synchronization circuits, read-only memory (ROM), radio module (RF ) and auxiliary elements.

The central processor of the RISK architecture is the basis and monitors and controls all of the above modules.

The power circuit provides power to the peripheral radio controller, and is also an interface for its correct operation with the repeater motherboard and repeater.

The microphone and speaker interfaces include operational amplifiers, passive filters, and other auxiliary elements necessary for the correct operation of the microphone and speaker, as well as for decoupling the DSP with the microphone and speaker.

ROM consists of one memory chip connected via a parallel interface to the CPU. ROM is necessary for the operational storage of service information, registration information (which comes through the power circuit from the repeater), as well as for storing the code of the main CPR work program.

Internal synchronization circuits are necessary for synchronization and decoupling of all modules of the peripheral radio controller.

The radio module (KR) consists of a radio controller and auxiliary circuits. It performs the functions of pairing (is the interface) of the DECT broadcast medium with the central processing unit.

These peripheral radio controllers must be located at least one in each of the passenger cars (and, possibly, on the locomotive).

A peripheral radio controller is a radio electronic device that combines the functions of a terminal subscriber radio unit, a DECT repeater (repeater), and UPAS (alarm supply device). The specified device is mounted on a printed circuit board in the form of a micro-component assembly with the ability to connect to the device for monitoring emergency conditions of equipment of a passenger car (and locomotive) of a train and an external key (memory key of a terminal subscriber radio unit) of initialization.

The emergency monitoring device used must have alarm inputs and direct dial buttons. Various sensors (such as temperature sensors, brakes, power failures, etc.) can be connected to the inputs. In case of recognition of the operation of any of the sensors or by pressing a button in the direction of a specific terminal of the DECT system, a call must be formed and a voice message transmitted. Each event must correspond to the following set of freely programmable parameters: call number 1 (car conductor number - up to 4 digits), call number 2 (train foreman number - up to

4 digits), alarm priority, contact type (open or closed) and voice message.

Also, the device is made with the possibility of programming additional parameters, such as car number, waiting time for a subscriber's response, speaker and microphone volume. Before installing the device, all parameters can be set by default using a personal computer, and then changed depending on the situation. The car number can be entered during installation using the base with a registered terminal, or during the initial connection of the car to the system. The number is entered by an incoming call to the signaling device and by dialing DTMF (** 9 - programming mode of the peripheral radio controller, access code = 0000 by default, 1 - programming mode of the car number, ХХХХХ) digit combinations. After establishing a connection and receiving a “response” signal, the device should broadcast a voice message that contains the car number and the accident message. The message should be repeated 5 times. The pause between repetitions should be 1 second. If the subscriber who made the incoming call hangs up, thereby confirming the acceptance of the alarm, the connection must be disconnected. In order to receive full confirmation (receipt) of acceptance of an emergency call, the device must wait for a response, and then hang up the subscriber to whom the emergency call is addressed. After that, the alarm transmission procedure can be considered completed. If the subscriber to whom the emergency call is addressed did not answer the call within the set time, the connection should be disconnected and the device should dial another number and repeat the transfer procedure from the beginning. If not

the second number answers, you need to return to the first one and so on until the device receives a receipt (answer - hang up) that the call is accepted.

The loud-speaking device, which is part of the device and consists of a speaker and a microphone, turns on when you press any direct dial button. When the alarm is triggered, only the microphone is turned on.

However, at any point in time, the called subscriber to whom the emergency call is intended can, by means of the DTMF combination, turn on the signal module speaker, thereby opening the channel for operation in both directions. To avoid loss of alarms, all events are stored and transmitted in priority order. All events, if they occur at the time of the transmission of the alarm message, are transmitted after the current message, and the connection is not disconnected. In any case, a low priority message must be completely transmitted, even if a high priority event arrives at the time of transmission, it will be transmitted as follows.

If at the time of the transmission of the message the central system in the staff car does not work, the message must be transmitted to the local loud-speaking device. This alarm message will be repeated until the staff presses the first direct dial button, thereby submitting a receipt for acceptance of the alarm message. If the central system restores operation, a normal emergency call will be organized according to the usual algorithm.

The device must store at least 64 of the latest alarms in non-volatile memory. The following are examples of DTMF codes used:

### U127 # 1 Microphone on

### U127 # 2 Speaker on

### U127 # 31 Relay 1 on

### U127 # 32 Relay 1 off

### U127 # 41 Relay 2 on

### U127 # 42 Relay 2 off

### U127 ** 9 PIN (4 digits) Programming menu

### U127 1 abode 5 digits wagon number (abcde = 00000..99999)

### U1272x Volume (x = 1 ... 3)

As a terminal subscriber radio unit, the peripheral radio controller is designed to organize a voice radio channel between headquarters and passenger cars in the framework of DECT intercom systems between elements of a passenger train.

As a DECT repeater, the peripheral radio controller is designed to organize a local radio access zone of wearable user terminals within a separate passenger carriage with subsequent transmission of information to the DECT base stations of the train system controller.

The memory key is used to expand the functionality of the peripheral radio controller in terms of automating the process of its registration in a working DECT system. It contains pre-entered registration information necessary for the operation of the peripheral radio controller as part of the DECT system, moreover, the memory key automatically transfers the specified registration information to the RAM of the peripheral radio controller when it is connected.

Structurally, the peripheral radio controller is made in the form of a printed circuit board with a DECT transceiver installed on it,

microprocessor, speakerphone and interface connectors.

The developed peripheral radio controller is designed to operate as part of a communication system and transmit emergency messages of passenger long-distance and commuter trains. The specified security and communication control system for a passenger train consists of two types of functional parts - central and terminal. The central part is located in the staff carriage and represents the central control system (DECT radio controller) with the base stations connected to it. Also in the head car are means for displaying emergency situations occurring in the train, and train signaling systems. The end parts of the system are located in passenger cars (and also, possibly, in the locomotive's cabin) and are devices for collecting and transmitting alarm messages from emergency sensors of the car (and locomotive) via organized radio channels to the central part of the system. The peripheral radio controller is also part of the terminal block of the system and is responsible for organizing the radio channel of communication with the base station DECT of the radio controller of the system with the possibility of transmitting alarm messages. A peripheral radio controller contains a repeater part, which ensures the organization of a local radio access zone of user terminals carried by conductors within a separate passenger car (and locomotive) and information transfer to the central part of the system. The peripheral radio controller is configured to connect the previously mentioned memory key containing identification information that determines which staff car it will be connected to

work with the key connected to it. In the absence of a memory key, the peripheral radio controller can work with the DECT controller identified as the “default system” (in particular, the depot controller).

In the process, the peripheral radio controller receives emergency information from the emergency state control device, DTMF peripheral radio controller control commands transmitted via the DECT channel, as well as registration information from the memory key, processes the specified information and transfers the control command stream to the emergency control device, and also voice messages transmitted through the DECT channel. In addition, during operation, the peripheral radio controller exchanges information through the speakerphone channel.

Claims (1)

The peripheral radio controller, made in the form of a micro-component assembly, characterized by the presence of the SC14425AVV microprocessor, which performs the function of a central processor, to which are connected the power circuit, microphone interface, speaker interface, internal synchronization circuits, read-only memory and radio module.