RU2311616C2 - Device for recording data - Google Patents

Abstract

FIELD: aircraft engineering.

SUBSTANCE: device comprises unit for collecting and processing information, checking unit, controller of storage, unit for processing sound information, unit for converting digital information, and unit for receiving information. The device is additionally provided with the unit for receiving/transmitting, which is made for permitting the change of the structure and regime of the transmitting of the signals depending on the body of information transmitted, the regime of operation of the unit for data recording, and interference situation.

EFFECT: enhanced reliability.

1 dwg

Description

The data recording system relates to the field of measurement, namely to the recording monitoring equipment, in particular to the on-board systems for recording information (data) of aircraft systems and assemblies.

A known data recording system containing a data collection and conversion unit, a secure drive, a control panel, a control unit, an audio information processing unit, an information pickup unit and a secure drive controller (see the description of the invention to RF patent No. 2173835, IPC G01D 9/00, G01C 21/00, G11C 15/00, B64D 43/00).

In modern conditions, to ensure flight safety, it is necessary to obtain constant (current) information on the technical condition of on-board systems and flight parameters on the ground. However, the known system cannot provide the receipt and transmission of such information due to limited functionality, which negatively affects the speed of decision-making by the flight manager.

A known data recording system comprising a data collection and conversion unit, a secure drive, a control panel, a control unit, an audio information processing unit, an information pickup unit, a protected drive controller and a digital information conversion unit, the output of the control panel being connected to the input of the collection and conversion unit information, the information inputs of which are connected to sensors and systems of the controlled object, the inputs of the protected drive controller are connected to the corresponding outputs by the information collection and conversion unit, the protected drive, the control unit and the audio information processing unit, the outputs of the protected drive controller are connected to the corresponding inputs of the protected drive, the control unit and the information collection unit, the other input of which is connected to the corresponding output of the information collection and conversion unit, another the output of which is connected to the input of the control unit, the output of the control unit is connected to the corresponding input of the information collection and conversion unit, to the inputs of the processing unit sources of audio information are connected, the inputs of the digital information conversion unit are connected respectively to the output of the information collection and conversion unit and the output of the protected drive controller (see Description of the invention to RF patent No. 2230295, IPC 7 G01D 9/00, G01C 21/00, G11C 15/00, B64D 43/00).

This system, as the closest in technical essence and the achieved result, is taken as the closest analogue (prototype).

For the transmission of flight data, the known system uses a backup radio station, provided that it is not currently busy transmitting other information. Data is transmitted through the radio station by the method of frequency telegraphy, which allows the enemy to easily detect the location of the aircraft, which uses the well-known data recording system, i.e. the requirement for energy stealth and a high degree of noise immunity of the functioning of the device is not provided. If the main radio station fails, the backup radio station does not appear to operate this device, which leads to a limitation of the amount of transmitted data. In addition, not all aircraft have a backup radio station.

The technical result of the claimed invention is the provision of the transmission of flight data to ground stations, regardless of the presence of a free radio station on board the aircraft while ensuring its energy security and a high degree of noise immunity.

The technical result is achieved by the fact that the data recording system comprising a data collection and conversion unit, a secure drive, a control panel, a control unit, an audio information processing unit, an information pickup unit, a secure drive controller and a digital information conversion unit, the output of the control panel being connected to the input of the unit for collecting and converting information, the information inputs of which are connected to sensors and systems of the controlled object, the inputs of the controller of the protected drive with are connected to the corresponding outputs of the information collection and conversion unit, the protected drive, the control unit and the audio information processing unit, the outputs of the protected drive controller are connected to the corresponding inputs of the protected drive, the control unit and the information collection unit, the other input of which is connected to the corresponding output of the collection and conversion unit information, the other output of which is connected to the input of the control unit, the output of the control unit is connected to the corresponding input of the collection and conversion unit information, the sources of audio information are connected to the inputs of the audio information processing unit, the inputs of the digital information conversion unit are connected respectively to the output of the information collection and conversion unit and the output of the protected drive controller, is equipped with a transmit / receive unit, the inputs and outputs of which are connected respectively to the outputs and inputs of the unit Transformation of digital information and antenna-feeder system.

The transmit / receive unit is a radio station that provides the ability to convert and transmit information in the form of modulated high-frequency signals with varying structure and transmission mode.

The drawing shows a structural diagram of a data recording system.

The data recording system consists of a unit 1 for collecting and converting information made on the basis of switch microcircuits, analog-to-digital converters and microprocessors, a protected drive 2, made on the basis of non-volatile memory chips, a control panel 3, a control unit 4, which, in particular, can be built on the basis of microprocessor sets, digital-to-analog converters as sources of analog test signals and shapers of one-time test signals, controller 5 of the protected storage A device based on a microcomputer with communication interfaces with the rest of the system, an audio information processing unit 6, which can be built on the basis of specialized codec chips and a microprocessor with built-in special software for processing audio information and an information collection unit 7, which includes microprocessor and adapter for recording information on a removable cartridge with non-volatile memory, which can be used as a standard PCMCI card, block 8 digit conversion O interfaces, comprising, for example, microprocessor and telegraphic code adapter unit 9 and transmission / reception, which is a special station providing two-way communication with terrestrial services.

The data recording system operates as follows.

In the controller 5 of the secure drive through the unit 1 for collecting and converting information, the entire amount of information recorded in the drive 2 and the unit 7 of information retrieval is received, and in block 7 an exact copy of the contents of the drive 2 is created.

In addition, additional information is received at the input of block 7 for extracting information from the output of block 1, which is not required to be recorded in drive 2, but which can be used in aircraft maintenance for more detailed monitoring of equipment operation and diagnostics of its condition, as well as for the analysis of flight performance tasks, evaluations of piloting technique, location of aircraft, etc. At the same time, the same additional information is fed to the input of digital information conversion unit 8, and the entire amount of information registered in unit 7 is fed to the second input of unit 8.

All information in block 7 information retrieval and drive 2 must be decrypted in terrestrial conditions.

From the output of block 8, information in digital form is fed to the input of block 9 reception / transmission. The transmit / receive unit 9 has the ability to change the characteristics of the radio channel and signal structure depending on changes in the operational-tactical, interference environment and the operating mode of the data recording system.

The operation mode of the transmit / receive unit 9 is controlled via one of three lines of the external interface, information is transmitted and received on the second line, and clock signals from the transmit / receive unit 9 to the digital information conversion unit 8 are transmitted.

When the system is turned on, the digital information conversion unit 8 issues a control code to the transmit / receive unit 9, which determines the carrier frequency of the cyclic polling, the transmission speed, the “receive” or “transmit” mode, and the noise-like signal (SHPS) or narrow-band signal (UP) mode with the specified information transfer rates. After receiving the control code, block 9 is ready to receive or transmit information. To bind the information sequence to the ШПС code, clock signals are used. A further change of modes takes place at the initiative of the operator of a ground station. The operator of the ground station can change the carrier frequency, the mode of UP or ShPS, code ShPS. The changed control data via the radio channel arrives at the receiving part of the transmit / receive unit 9, where they are demodulated and transmitted to the digital information conversion unit 8. The digital information conversion unit 8, on the basis of the received data, generates the corresponding control code and transmits it to the receive / transmit unit 9, which performs tuning and switches to the “receive” or “transmit” mode with the new parameters of the radio channel.

The amount of information transmitted to the ground is determined by the program of the processor unit 8 through the message addresses. When changing the tasks assigned to the aircraft, the amount of information can be clarified by reprogramming the processor unit 8.

During normal operation (or when transmitting current information), information from block 8 is transmitted by block 9 in a narrow-band low-speed mode through an antenna-feeder system to ground stations.

When increasing the amount of information transmitted, for example, a rapidly changing image, as well as for transmitting the accumulated flight information during taxiing of an aircraft after landing, a high-speed mode is used. To transfer the system to a high-speed data transfer mode after landing (during taxiing), a control code for the high-speed mode and the “transfer” mode is used.

If it is necessary to simultaneously provide high noise immunity, energy stealth and code separation of channels (on command from the ground), the information is transmitted in ShPS mode, this mode is the main one in the conditions of counteracting foreign technical intelligence (ITR).

The main characteristics of a channel with an NPS (carrier frequency, information transfer rate, maximum transmitter power, signal base, number of communication channels) depend on the specific task being performed and are determined by the interaction algorithms of the system subscribers. Adaptation to specific application conditions includes changing the power of the transmitters and restructuring the notch filters depending on the level of intentional and unintentional interference in the system.

Introduction to the data recording system of the transmission / reception unit 9, which is a special radio station that uses narrow-band radio signals or noise-like, depending on the specific situation (operational-tactical, jamming conditions or mode of operation of the system), allows for high-quality operation of aviation systems and more complete use informational capabilities of the system by transmitting the required volumes of digital data within the entire system coverage area with specified Qualitative indicators:

- energy secrecy;

- high noise immunity;

- the ability to simultaneously transmit various information to two subscribers;

- transmission of video images;

- change the transmitter power to achieve optimal values of stealth and noise immunity.

Thus, until the aircraft lands, the ground services have all the necessary information to make a decision about their readiness for a second flight, which significantly reduces the time of inter-flight training, and in the event of a pre-emergency situation due to exceeding flight and technical restrictions, equipment failure, and the development of recommendations by the ground services to the pilot.

Claims (1)

A data recording system comprising an information collection and conversion unit, a secure storage device, a control panel, a control unit, an audio information processing unit, an information collection unit, a protected storage controller and a digital information conversion unit, the output of the control panel being connected to the input of the information collection and conversion unit , the information inputs of which are connected to sensors and systems of the controlled object, the inputs of the controller of the protected drive are connected to the corresponding outputs of the block boron and conversion of information, a protected drive, a control unit and an audio information processing unit, the outputs of the protected drive controller are connected to the corresponding inputs of the protected drive, control unit and information collection unit, the other input of which is connected to the corresponding output of the information collection and conversion unit, the other output of which connected to the input of the control unit, the output of the control unit is connected to the corresponding input of the information collection and conversion unit, to the inputs of the sound processing unit The information sources are connected to the sound information, the inputs of the digital information conversion unit are connected respectively to the output of the information collection and conversion unit and the output of the protected drive controller, characterized in that it is equipped with a transmit / receive unit, the inputs and outputs of which are connected respectively to the outputs and inputs of the digital conversion unit information and antenna-feeder system, and the receiving / transmitting unit is configured to change the structure and mode of signal transmission (for example, narrowband second, high-speed, noise-like) depending on the amount of information transmitted, the mode of operation of the data recording system, operational tactical and jamming situations.