RU34244U1 - DIGITAL INFORMATION RECORDER - Google Patents

Abstract

1. A device for recording digital information containing a preliminary information processing unit with one or more inputs, which are device inputs, a microcomputer connected by two-way communication with an information preliminary processing unit, an information solid state drive with memory blocks allocated in it according to the number of device inputs, connected two-way communication with the output of the microcomputer, and a power supply, characterized in that the solid-state drive is equipped with an additional memory block formed in it a, connected by two-way communication with a microcomputer. 2. The device according to claim 1, characterized in that the search memory unit is designed to search for the end of the previous record by recording service information for each of the inputs of the device. The device according to claim 2, characterized in that the drive enable number and the recording start address are used as service information. The device according to claim 3, characterized in that in the search memory unit, overhead information is recorded with the formation of a “ring” .5. The device according to claim 1, characterized in that for monitoring the technical condition of the drive, it is additionally equipped with an error memory unit formed therein, also connected by two-way communication with the microcomputer. The device according to claim 1, characterized in that the information preprocessing unit in it is made in the form of receiver-converters in an amount corresponding to the number of device inputs connected to an exchange controller connected by two-way communication with a buffer device, and a status signal register, the input of which is connected to the output of the exchange controller. 7. The device according to claim 1, �

Description

DIGITAL INFORMATION RECORDER

The utility model relates to information-measuring equipment, namely, to digital recording of aarametric, speech or other data into a solid-state non-volatile information storage device for an on-board recording device used to diagnose the condition of an object, for example, a vehicle, and evaluate the actions of staff (crew) .

A device is known for collecting and recording information of a multi-channel parameter registration system MSRP-A-01 using magnetic tape (see Automated processing of flight information. Edited by V.N. Bukov, M., Military Publishing House, 1995, pp. 87-92 ), in which the recorded information is recorded on a magnetic tape medium having 8 recording tracks. When the end of the track is reached, the drive mechanism reverses and switches to the next track. After sequentially filling all the tracks, the recording is performed again on the first track by replacing the previous record, thereby forming a continuous recording in a ring. The end of the previous record is determined mechanically at the stopping place of the magnetic medium. Marking of the beginning of each registration is not provided, and the ownership of the record is determined by identification data (by flight number, by date and time of day, i.e., by service information contained within the parametric).

This device contains a switch for analog parameters connected via a matching device to a frequency-to-code converter (PLC), as well as an AC normalizer, a voltage normalizer, and an amplifier-normalizer MI; voltage signals connected through a scaling device to a voltage-code converter (PNK). The result of the conversion of the input signals in a serial code from a PCP and in a parallel binary code from a control panel together with information about serial codes (PCs) and one-time commands (PK) is supplied to a data acquisition device (DRC) along with identification data and the current time value received via code converter from the control panel. All devices are controlled by a software control device connected to the first

2 O 031.Z 11 4 O

GO ID 9/00 G06F 3/06

synchronizer. To receive serial codes, the device contains two PC receivers, two forwarding devices, an address generator and two storage devices (memory) controlled by a second control device, which, in turn, is controlled by a second synchronizer coordinated with the first. The output information stream from the memory upon command from the control device enters the second data acquisition device.

This device is characterized by high hardware costs and a low level of software, which leads to an increase in weight and size indicators and a decrease in the speed and reliability of the device associated with the presence of moving and wearing parts. In addition, like other tape recorders, it has low information capacity and speed.

A device for inputting information for recording data into a solid-state drive according to the patent of the Russian Federation. No. 2097825, СУБР 3/06, 1996, containing an information preprocessing unit, the inputs of which are the inputs of the device, connected by two-way communication with a microcomputer, a circuit for indicating the amount of information, a memory unit also connected by a two-way communication with a microcomputer, a power control unit connected to a power supply unit and a power control circuit for generating an interrupt signal to record recorded information when the voltage is reduced I too low. The memory block in the device is removable in the form of a memory card.

To record flight information on the memory card after turning on the power, input parallel information codes accompanied by clock pulses are fed to the input of the preliminary information processing unit, where they are gated (synchronized), preliminary byte packing and buffering of the input information is performed, and, as it arrives, they are recorded one by one in one of two random access memory (RAM) devices until they are filled. Then, using the processor and controller included in the microcomputer, the recorded information is read from RAM, checked and written as a file to the device’s memory block (drive) until it is full, after which the recording stops. The state of the device is visualized on the indicators of the front panel of the device’s case, and the volume of the memory block (in percentage of its total volume) is displayed by the information volume indication circuit.

This recording device allows you to slightly increase the speed of data recording and simplify the process of their further processing, as well as control the possible time of registration in order to avoid loss of information. At the same time, the possible amount of recorded information in this device is limited by the technical characteristics (volume) of the memory card, and during a long flight of the aircraft it may be necessary to replace it, which reduces the functionality of the recording device.

The closest in technical essence to the claimed is a device for digital recording of information, implemented in the form of a solid state drive type TBN-K-4 (see. Manual for technical operation MIVYU.794121.003, JSC NPO Nribor, 1998). The storage medium in this device also serves as an electronic memory card. At the same time, information from each input of the device is recorded in separate arrays memory blocks with information arrays of a certain length. After filling each memory block, information is recorded instead of previously recorded information with the formation of the so-called ring. To mark the end of the record in the ring after recording each array of information, an array of units is written, the length of which substantially exceeds the array of useful information (in particular, with a length of the useful information array of 512 bytes, the length of the array of units is approximately 2 kilobytes); at the same time, each subsequent array of information and the array of units accompanying it are written instead of the previous array of units. Thus, in the record of information received from each input, there is a single array of units related to the last recorded array of information, which allows you to detect the end address of the previous record when the drive is turned on by finding the array of units.

After turning off the power of the drive for one reason or another and then turning it on, the recording of the next array of information in the memory block continues from the place where the previous recording was interrupted. In this case, the starting address of the array of units is first found in the memory block, starting from this address, an array of zeros 512 bytes long is written to mark the beginning of the recording of this inclusion, and then the next array of information.

incoming information associated with two-way communication with a microcomputer, as well as a device status indicator and a power supply with its control circuit. From the output of a microcomputer, including a processor and a controller connected by an internal bus, the recorded information is fed to a solid-state drive (electronic memory card), in which memory blocks are inserted according to the number of device inputs.

However, in such a device, the need to record an array of units after registering each array of information reduces the actual performance of the recording. At the same time, there is no possibility of reducing these losses by increasing the length of the information array, since when the power is turned off unexpectedly, all data prepared for recording but not recorded on the electronic card is lost, i.e. the longer the installed array of useful information, the greater part of the data may be lost. Reducing the length of an array of units is also impossible, because this length is determined by the need to distinguish the boundary of the record from the maximum possible sequence of units in the useful information.

In addition, after turning on the power, to determine the starting address of the recording of new data arriving at the drive inputs, it is necessary to search for an array of units in each memory block. With an increase in the capacity of electronic memory cards, the search time for this array of units, that is, the time it takes for the device to be ready for use, increases proportionally, and with capacities of more than 1 GB it can reach tens of minutes. This is unacceptable from the point of view of its functional purpose and thereby limits the possibility of using large capacity electronic memory cards in the known device.

One of the disadvantages of the known device is the lack of the ability to directly, without deciphering the accumulated information, synchronize in time the data arrays recorded from different inputs of the drive. In addition, the recording of data on an electronic memory card is not accompanied by the recording of any additional data that establishes the correctness of this record, which can lead to an uncontrolled decrease in the reliability of the recording.

The utility model solves the problem of increasing the speed of recording information in a solid-state drive, reducing the search time for the recording boundary after turning on the power, synchronizing data arrays, and increasing the reliability of information recording.

To do this, in a device for recording digital information containing an information preprocessing unit with one or more inputs, which are device inputs, a microcomputer connected by two-way communication with an information preprocessing unit, an information solid state drive with memory blocks embedded in it by the number of device inputs, connected by a two-way communication with the output of the microcomputer, and the power supply unit, the solid-state drive is equipped with an additional search memory unit, connected by two-way communication to a microcomputer and intended to search for the end of a previous record by recording service information in the form of a drive enable number and a recording start address with recording in a ring.

In this case, the solid-state storage device is executed in the form of an electronic memory card on flash memory chips, and the microcomputer is executed in the form of a processor connected by a two-way communication to the controller.

The information preprocessing unit in the device is implemented in the form of receiver-converters in an amount corresponding to the number of device inputs connected to an exchange controller connected by two-way communication with a buffer device, and a status signal register, the input of which is connected to the output of the exchange controller.

In addition, to monitor the technical condition of the drive, it is additionally equipped with an error memory unit formed in it, also connected by two-way communication with the microcomputer.

The utility model is illustrated by drawings, in which Fig. 1 shows a structural diagram of a claimed device, and Fig. 2 is a structural diagram of a preliminary information processing unit.

A device for recording digital information contains an information preprocessing unit 1 having one or more inputs for receiving information, which are simultaneously inputs of the device. In the claimed device, unit 1 performs the function of a device for matching and generating signals and is intended for receiving, converting, and buffering input information.

Block 1 is connected by a two-way communication microcomputer 2, containing a processor 3 and a controller 4 of the drive, interconnected by a common bus. The processor 3 is designed to receive the information accumulated in block 1, to form it into information blocks of a certain length, including both working and

service information, and their recording in the memory blocks of the drive using the controller 4 corresponding to the input number. In addition, the functions of the controller 4 also include checking the correctness of writing information to the drive and sending error messages to the processor 3.

A solid-state drive 5, connected, for example, in the form of an electronic card on flash memory circuits, is connected through the contacts of the controller 4 to the outputs of the microcomputer 2. Structurally, drive 5 is removable and connected to controller 4 using a plug.

In embodiments, the drive 5 can be executed not only in the form of an electronic memory card, but also in the form of a memory unit consisting of one or more microcircuits with their control circuit, in the form of a solid state disk, etc.

Depending on the number of device inputs in the drive 5, a corresponding number of zones for recording input data is formed (memory blocks 6. In addition to them, two service memory blocks are additionally formed in the drive 5: search memory block 7 and error memory block 8, which are also , like other memory blocks, have two-way communication with microcomputer 2.

A status indicator 9 is also connected to one of the outputs of the information preprocessing unit 1, which is located on the front panel of the device and is designed to indicate the readiness of the drive 5 for recording information.

All units of the device are powered by a power supply 10 connected to an external power supply (not shown in the drawing) with a voltage of + 27V, which generates two voltage levels at the output: + 5V and + 15V. The heating module AND is connected to the output of the power supply 10, for the power supply of which a separate input is provided, connected to an external power bus.

The supply voltage at the output of block 10 can have other values, which, like the presence of electric heating or cooling, are determined by the operating conditions of the drive and the element base used in the device.

The information preprocessing unit 1 contains receivers-converters 12 in an amount corresponding to the number of device inputs whose outputs are connected to the exchange controller 13, as well as a buffer device 14 connected by two-way communication with the controller 13, and a status signal register 15, the input of which is connected to the output of the controller 13 , and the output is to the input of the status indicator 9.

receiver-converters 12 are designed for logical and / or electrical conversion of input information into a format suitable for further processing in this device. So, for example, in the inventive device, conversion is made from bipolar address and addressless serial codes to unipolar serial codes. The exchange controller 13 serves to control the operation of all nodes of block 1, to write and read information from the buffer device 14, to exchange data with the microcomputer 2, and also controls the operation of the indicator 9 through the register 15 status signals. The buffer device 14 is a conventional random access memory (RAM).

The device operates as follows.

After the device is turned on, the information received from each input of the device enters the information processing unit 1, where it is converted at the logical and electric levels to the form suitable for further processing using the corresponding receiver-transducers 12 connected to each of the inputs, t .e. into the above-mentioned unipolar serial codes, and is recorded in the buffer device 14 using the controller 13 exchange.

Through the data port of microcomputer 2, processor 3, in accordance with the program laid down in it, reads the accumulated information from the buffer device of block 1 for each of the input channels, composes information blocks of a certain length containing a fixed number of bytes from it, adds bytes of overhead information, and transfers the received information on the bus to the controller 4, which ensures its recording in the memory blocks 6 of the drive 5 corresponding to the input number while checking the correctness of the recording.

When the power is turned off, the processor 3 stops recording the recorded information with saving the data recorded at that moment on the memory card, and the information in the buffer of the preliminary processing unit 1 is not written to the drive.

Before the first installation of the drive 5 in the recording device and when the number of input information flows changes, the memory card is formatted and prepared, forming in it: a specific number of memory blocks 6 of the input data. In this case, each input of the device and the corresponding memory block 6 is assigned a number, hereinafter referred to as the input number.

Recording is made by arrays of a certain length (in the claimed device, for example, this length is 512 bytes), and after filling each memory block 6, subsequent information arrays are written instead of previously recorded with the formation of a ring.

Each array, in addition to input information, also contains an inclusion number. The sequence number of the inclusion when recording to a newly formatted memory card is set to O and then cyclically increased by 1 each time it is turned on, skipping the value 0. Thus, only the newly formatted memory card has a zero value of the inclusion number.

The cycle number is used for long recording without turning off the drive power. To determine the multiple passage of the ring in the memory unit during one drive turn-on, the number of complete passages along the ring is indicated by the cycle number and recorded in the search memory unit 7 in the form of service information supplementing the drive enable number. In this case, the sequence number of the cycle at each turn-on is set equal to zero, and then when the write ring is closed, when the start address of the record of the next array coincides with the start address of the record of the first array, the cycle number is increased by 1.

Thus, after turning on the device, in addition to writing information arriving at its RIDES to the memory blocks 6, the service information containing the inclusion number common to all memory blocks 6 of the input data and the address are recorded in the search memory block 7 formed in the drive 5 start recording information on the memory card from the moment it was turned on. If during the recording process the drive receives information from several inputs and writes it to the corresponding input data memory blocks 6, then the corresponding number of information arrays containing the start address of the information recording for each input data memory block are written to the search block 7.

The listed service information is recorded in the search unit 7 also with the formation of the ring. The last entry in the ring is marked with an array of units, the length of which substantially exceeds the length of a single information array.

Before the start of the current recording, the end of the recording is searched for at the previous start by detecting in the search memory block 7 the sequence number of the previous inclusion and the starting recording addresses in each information array, checking for the presence of the information array with the specified address

serial number of the previous inclusion. Then, in the direction of the recording, a step-by-step search of the information array with a different inclusion number is performed, and when it is detected, the end of the recording of the previous inclusion is considered to be located inside the last step, and a further search is performed by successively narrowing steps.

At the same time, the length of the first step in a step-by-step search for the end of the record of the previous inclusion should not be the same as the length of the total array of information received at the maximum number of allowed numbers of inclusion. This step length is certainly shorter than the full cycle of enumerating the inclusion numbers even in the case of recording only one array of information at each power-up of the drive, which ensures the correct detection of the end of the previous record.

To synchronize data, accumulate a few in different memory blocks of the drive, i.e. coming from different inputs of the device, for all memory blocks during one inclusion use the same (identical) number of inclusion regardless of the presence or absence of information on any of these inputs. In this case, the need for additional processing of the information accumulated in these blocks is eliminated.

In the process of operation of the devices, the correctness of recording information on the memory card is controlled using the additional error memory service unit 8, which is additionally formed in the drive. If an error is detected in writing the information array, it is repeated in the next zone of the memory card, and data such as the enable number is recorded in error block 8 , entry number, starting address of the information array with the detected error. The number of entries accumulated in the error block 8 is an indicator of the technical condition of the memory card.

Thus, the claimed device for recording information embedded in it with two additional memory blocks can significantly improve the efficiency of the device by increasing the speed of recording w: formation, reducing the search time of the boundary of the last record after turning on the power and synchronizing data arrays, as well as increasing the reliability of the recording information.

Claims (8)

1. A device for recording digital information containing a preliminary information processing unit with one or more inputs, which are device inputs, a microcomputer connected by two-way communication with an information preliminary processing unit, an information solid state drive with memory blocks allocated in it according to the number of device inputs, connected two-way communication with the output of the microcomputer, and a power supply, characterized in that the solid-state drive is equipped with an additional memory block formed in it a, connected by two-way communication with a microcomputer. 2. The device according to claim 1, characterized in that the search memory unit is designed to search for the end of the previous record by recording overhead information for each of the inputs of the device. 3. The device according to claim 2, characterized in that the drive enable number and the start address of the recording are used as service information. 4. The device according to claim 3, characterized in that in the search memory unit, overhead information is recorded with the formation of a “ring”. 5. The device according to claim 1, characterized in that for monitoring the technical condition of the drive, it is additionally equipped with an error memory unit formed therein, also connected by two-way communication with the microcomputer. 6. The device according to claim 1, characterized in that the information preprocessing unit in it is made in the form of receiver-converters in an amount corresponding to the number of device inputs connected to an exchange controller connected by two-way communication with a buffer device and a status signal register, input which is connected to the output of the exchange controller. 7. The device according to claim 1, characterized in that the solid-state drive information is made in the form of an electronic memory card on flash memory chips. 8. The device according to claim 1, characterized in that the microcomputer is made in the form of a processor connected by two-way communication to the controller.