KR20120013679A - Storage apparatus of real time mass storage astronomical and space phenomena observation data using flash memory - Google Patents

Storage apparatus of real time mass storage astronomical and space phenomena observation data using flash memory Download PDF

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KR20120013679A
KR20120013679A KR1020100075811A KR20100075811A KR20120013679A KR 20120013679 A KR20120013679 A KR 20120013679A KR 1020100075811 A KR1020100075811 A KR 1020100075811A KR 20100075811 A KR20100075811 A KR 20100075811A KR 20120013679 A KR20120013679 A KR 20120013679A
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South Korea
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data
astronomical
memory
flash memory
flash
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KR1020100075811A
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Korean (ko)
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방승철
위석오
강용우
박필호
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한국 천문 연구원
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Priority to KR1020100075811A priority Critical patent/KR20120013679A/en
Publication of KR20120013679A publication Critical patent/KR20120013679A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0614—Improving the reliability of storage systems
    • G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device
    • G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Read Only Memory (AREA)

Abstract

The present invention relates to a storage device and method for real-time astronomical observation data.
The storage device of the real-time large-scale astronomical observation data of the present invention includes a communication controller for communication with the outside, such as receiving an external control command; An astronomical observatory data input controller configured to generate and supply a necessary signal so that real-time astronomical observatory data input through the astronomical observatory input port is stored in a flash memory without loss; Control command to control each component of the storage device of the astronomical observatory data according to the control command input through the command button in addition to the control command through the control communication line from the remote site, and to receive the astronomical astronomical observation data from the astronomical observatory data input controller. Central controller to achieve the; An LCD panel which checks an operation state of the data storage device and displays the usage ratio of the flash storage medium, etc .; A high speed operation memory block for temporarily storing data in order to prevent data loss while storing data in a flash memory mounted on a flash storage medium; And a flash memory interface which receives data stored in the fast operation memory block by a command of the observation data input controller and transmits the data stored in the high speed operation memory block to the flash storage medium.
In addition, the method for storing a large amount of astronomical observation data generated in real time ultra-high speed of the present invention is a second unit of the time information and astronomical observation data transmitted simultaneously with the astronomical observation data input controller in the astronomical observation data input controller Generating a signal for constructing a block such as a size of a data register in a flash memory using a synchronization signal of 1PPS and a clock signal for data transmission; Configuring each shift register corresponding to each line to process serial signals input at high speed through several strands of communication lines, and configuring the shift registers in parallel data in bytes; Storing a high-speed astronomical observation data in bytes in a high-speed memory by constructing a high-speed memory block composed of a high-speed memory that has the same size as the number of input lines having the same size as the data register of the flash memory. ; And two memory blocks for high-speed operation, respectively, to store data input in real time without loss, while one block stores the real-time astronomical observation data input through a communication line in the memory block for high-speed operation. The high speed operation memory block may include transferring the stored data to a flash storage medium.
As described above, the present invention has an ultra-fast storage function for astronomical observation data generated in a large amount in real time using a flash memory as a high-capacity nonvolatile digital data storage component, and is configured in a manner without a mechanical driving device. It has strong resistance to external forces such as impact, and has a high density of semiconductor elements with high density, so its structure is simple, its weight and size are small, it is convenient for transportation, and it has a history of use of flash storage media. You can do it conveniently.

Description

Storage apparatus of real time mass storage astronomical and space phenomena observation data using flash memory

The present invention relates to a storage device for real-time astronomical observing data, and more particularly, to a high-capacity nonvolatile digital data storage component, which is generated at a high speed in real time using a flash memory having a strong resistance to external forces such as impact. A storage device and method for mass astronomical observation data.

In general, precision astronomical observation data is time-synchronized by a precision standard device obtained by atomic clock and GPS to accurately measure the point of view, and from a high-speed observation data sampling device to a digital signal to maintain high precision of the observed result. After conversion, it is configured to go through storage and signal processing and then extract the necessary data. Ultra-fast sampling of observed data during processing results in large amounts of real-time digital data, which are more than a few gigabytes per second and are continuously output from the sampling device.

The data output from the ultra-high speed sampling device is a large amount of data in real time and cannot be stored using a general storage device. A dedicated storage device is used. As an example, a storage device for high-speed real-time astronomical observation data constructed using a PC, a HDD, and a real-time data processing device 2 dedicated to acquiring astronomical observation data as shown in FIG. The real-time data converted into digital is input to the astronomical observatory data storage device 6 by a dedicated transmission line 1. The input signal is transmitted to the real-time data processing device 2 mounted in the astronomical observation data storage device. This real-time data processing apparatus 2 performs a function of storing the astronomical universe observation data externally inputted by a PC command at a high speed in the parallel HDD array 5. In order to store data at high speed in real time without difficulty, several parallel HDD Arrays 5 are configured in parallel. Parallel HDD Array (5) is not only complicated control method, but also because it is necessary to write data to several HDDs at the same time, general controller (8) is used to configure the controller. ) To control the HDD and the real-time data processing device.

Reference numeral 3 is an HDD connection cable.

However, such a high-speed astronomical observation data storage device has no problem in storing high-speed data, but among the components constituting the device 6, the parallel HDD array 5 is driven by a mechanical driving device such as a motor. The malfunction of the device 6 due to a failure has occurred, and even if one of a plurality of parallel HDD arrays 5 has a change in mechanical characteristics, it is necessary to replace all installed HDDs when the characteristics of the other HDDs are different. have. And since most astronomical observation facilities are far from the data center that processes and analyzes the data, the astronomical observation data, which is the result of the observation, moves from the astronomical space observation facility to the data center that handles the data. HDD storage device is large and heavy, and it is weak to vibration, so it needs to be very careful when transporting it, and as a result, maintenance operation cost is large.

The technique used in flash memory to store large amounts of data using a small number of pins, which is a common method, uses a single pin to delay the positioning or control command of a flash memory cell and the reading and writing of data to be stored in the cell. Use a method of passing multiple commands. The use of this method can greatly reduce the number of pins used to read and write the flash memory, but it takes a long time to complete the operation. As a workaround, a method of configuring a data register inside the flash memory to speed up reading and writing is used. . Using the internal data register may be a method of increasing the reading and writing speed compared with the conventional method, but there is a limitation in storing data which is synchronized to the standard time and continuously input in real time, such as astronomical observation data. .

The present invention has been made to solve the above problems, the purpose of which has a high-speed storage function of the astronomical observatory data generated in a large amount in real time using a flash memory, a high-capacity nonvolatile digital data storage component, as well as It is constructed in a way that does not have a mechanical driving device, so it has strong resistance to external forces such as impact, and has a high-density semiconductor device with high density, which is simple in structure, small in weight and small in size, and convenient to transport. The present invention provides a storage device and method of real-time large-scale astronomical observation data using a flash memory that has a history of use, so that the storage and management can be conveniently performed.

In order to achieve the above object, a storage device for real-time large-scale astronomical observation data of the present invention includes a communication controller for communication with the outside, such as receiving an external control command; An astronomical observatory data input controller configured to generate and supply a necessary signal so that real-time astronomical observatory data input through the astronomical observatory data input port is stored in a flash memory without loss; Control command to control each component of the storage device of the astronomical observatory data according to the control command input through the command button in addition to the control command through the control communication line from the remote site, and to receive the astronomical astronomic observation data from the astronomical observatory data input controller. Central controller to achieve the; An LCD panel which checks an operation state of the data storage device and displays the usage ratio of the flash storage medium, etc .; A high speed operation memory block for temporarily storing data in order to prevent data loss while storing data in a flash memory mounted on a flash storage medium; And a flash memory interface that receives data stored in the fast-operating memory block by a command of the astronomical observatory data input controller and transfers the data stored in the high speed operation memory block to the flash storage medium.

The high speed operation memory block may further perform functions such as whether to insert into the device of the flash memory constituting the flash storage medium, initialize, check the function of the flash memory, and read the flash memory.

In addition, the storage device of the real-time large-scale astronomical observation data of the present invention is a differential receiver block for converting the differential electrical signal of the astronomical observation data input through the astronomical observation data input port into a single signal line (Differential receiver block) ; And converting the serial data input from the differential signal receiver into a parallel signal using a control signal input from the astronomical observatory data input controller while reducing the data moving speed and creating a byte, which is the size of the input data of the flash memory. The shift register; characterized in that it further comprises.

In addition, the present invention provides a method for storing a large amount of astronomical observation data generated in real time ultra-fast, the astronomical observation data input controller of the visual information and astronomical observatory data transmitted simultaneously with the high-speed astronomical observation data Generating a signal for constructing a block such as a size of a data register in a flash memory using 1PPS, which is a signal for synchronizing in seconds, and a clock signal for data transmission; Configuring each shift register corresponding to each line to process serial signals input at high speed through several strands of communication lines, and configuring the shift registers in parallel data in bytes; Storing a high-speed astronomical observation data in bytes in a high-speed memory by constructing a high-speed memory block composed of a high-speed memory that has the same size as the number of input lines having the same size as the data register of the flash memory. ; And two memory blocks for high-speed operation, respectively, to store data input in real time without loss, while one block stores the real-time astronomical observation data input through a communication line in the memory block for high-speed operation. The high speed operation memory block may include transferring the stored data to a flash storage medium.

The present invention includes converting parallel data into serial data using a high speed clock when data of a high speed memory block is transferred to a flash storage medium; Reconstructing data transmitted in a serial manner through a connector and converting the data into a form inputtable to each flash memory constituting a flash storage medium; And configuring a plurality of flash memories in a parallel structure on a single substrate in order to write real-time astronomical observation data to the flash memory at a high speed, so that a plurality of information can be simultaneously written.

In addition, the present invention provides a method for configuring a separate flash memory controller in a storage medium in order to arrange a plurality of high-capacity memory in a small space, thereby increasing the memory placement density by reducing the number of connection lines by using a common movement line of data; And a state memory for indicating whether the flash memory can be stored as a function of memory as a separate memory by a direct access method capable of high-speed access so that a defective area can be displayed, so that data is not stored in this area. Preventing the loss of the; characterized in that it comprises a.

In addition, the present invention provides a separate storage medium use history memory for efficient management of the storage medium, the data stored in this memory is the observation schedule, data size, measurement location that is generated when performing the astronomical observation Such that the back is automatically stored; In order to transmit high speed real-time data without loss, control signals and separate data transmission lines are composed to process signals, and I / O lines are separated and high speed memory with different bit sizes to be written or read at once is used for parallel structure. Delivering error-free data to the flash memory.

As described above, the present invention uses a flash memory as a high-capacity nonvolatile digital data storage component, and has an ultra-fast storage function of astronomical observation data generated in a large amount in real time, as well as without a mechanical driving device. It has a strong resistance to external forces such as impact, and has a high-density semiconductor element with high density, which is simple in structure, small in weight and small in size, convenient to transport, and has a history of use of flash storage media. Management can be convenient.

1 is a block diagram of a conventional astronomical observation data storage device.
2 is a functional block diagram of a NAND flash memory to be used in the present invention.
3 is an array configuration diagram of a NAND flash memory for explaining the present invention.
4 is a block diagram of an astronomical observatory data storage device according to the present invention;
5 is a block diagram of an astronomical observatory data storage device according to the present invention;
6 is a flow chart of real-time astronomical observation data.
7 is an exemplary configuration diagram of a flash storage medium according to the present invention.
8 is a memory configuration diagram for storing flash storage medium usage history and flash sector state.
9 is an operational state diagram of a storage device for astronomical observation data according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a functional block diagram of a NAND flash memory to be used in the present invention.

The NAND flash memory 36 is largely composed of three blocks. It consists of a flash memory cell 110 for storing data, an input / output controller 100 for controlling the passage of data and control commands, and a control circuit 107 composed of input terminals of operation signals of the flash memory. In the method of storing data in the flash memory, an address pin for designating a storage location and a data to be stored are simultaneously generated at the data pin and a control signal is applied to store the data in the flash memory space. The address to be stored is first stored in the address register 101, and the data in the page (2K Byte) unit previously stored in the data register 109 is stored by a signal by an external write command signal terminal (control terminal) 104. Perform the save to the flash memory is complete.

This will be described in detail with the flow of signals and data. In order to write data to the flash memory, a signal for writing data, a corresponding address and a command, and a corresponding address are written using the control line 104 connected externally. Are stored in the address register 101 and the instruction register 106 through the RN. This is ready to receive data. In the next process, if only data is continuously input through the input command port without designating a address indicating a location where data is to be stored, the data is stored in the data register 109 in the flash memory. This completes the preparation of the data to be stored in the flash memory. The next step is to store the contents in the data register in the flash memory cell. When an external command is input through the control terminal, the control circuit 107 generates an address signal of one page for the actual address where the flash memory cell is to be stored. The generated signals are assigned to the flash memory cells in units of bytes by the row direction storage location selection decoder 108 and the cell direction storage location selection decoder 111 of the memory for designating the flash cells. The corresponding data is output from the data register 109 and stored in the flash memory. With data ready to be stored in flash memory in the data register, the contents of the data register are transferred to the flash storage cell with a single command. It takes time to move the entirety of the contents in the data register to the flash memory cell and communicates the operating status to the outside via the ready status display pin 105 during operation or completion. When this process is complete, a page of data is stored in flash memory. Large amounts of data are also stored in flash memory by an external controller in multiple iterations. Reference numeral 102 denotes a status register of the command control circuit.

3 is an array configuration diagram of a NAND flash memory showing a relationship between a flash memory cell and a data register. Flash memory also represents the size using bits and bytes, the smallest unit of digital, but the storage unit that reads or writes at one time uses page 121, and one page has a size of 2K bytes. The data register 109 is used as a temporary storage space for writing or reading data to and from the flash memory. The size of the data register also has 2K bytes of the same size to maintain a 1: 1 correspondence with the page. The page is used as a component of the block 120 that is the upper structural unit. If a block consists of 64 pages, one block is 128K bytes in size. The inside of the flash memory is composed of plane 122 units, and a plurality of blocks 120 form a plan. In addition, one flash memory 36 is composed of several planes 122.

4 is a block diagram of a storage device for real-time large-scale astronomical observation data according to the present invention, after converting an analog signal into a digital signal, the real-time astronomical observation data is transmitted through a data transmission line (1) Is input to the storage device 13. It has a control communication line 12 for remotely controlling the storage device 13 for astronomical observation data of the present invention at a remote location. The data input through the real-time dedicated astronomical observation data transmission line 1 is stored in the flash storage medium 18 after internal processing. The storage device of the astronomical observation data of the present invention has an LCD panel 14 capable of confirming the state of use of the flash storage medium and the operation state of the device, and is controlled by the control of the control communication line 12 from the outside. Although recording is possible, a button 15 for inputting commands for controlling the device in the field can be provided to provide convenience of operation and testing of the device. The flash storage medium 18 in which the astronomical observatory data is stored is connected to the storage device 13 of the astronomical observatory data of the present invention through a flash storage medium insertion hole 17 in the main body. The main body is configured with a start button 16 for giving a command to store astronomical observation data in the field.

5 is a block diagram of a real-time mass astronomical observation data storage device according to the present invention.

A control command for controlling the data storage device according to the present invention from an external remote location is input through the control communication line 12, and the input control command is transmitted from the communication controller 11 to the data storage device 13 according to the present invention. Is converted into data in a form recognizable by the central controller 23.

The central controller 23 of the data storage device 13 according to the present invention is a command input button 15 installed in the data storage device 13 according to the present invention in addition to the control command via a control communication line 12 from a remote location. You can control each operation.

In addition, the LCD panel 14 may indicate a state of the operation of the data storage device 13 according to the present invention according to the command, so that the storage device 13 of the astronomical observatory data according to the present invention according to the remote control in the field. It can check the operation status of the flash storage medium and has a function to check the usage ratio.

The central controller 23 which receives a command from a remote control button or an internal command input button issues a control command to receive the astronomical space observation data from the receiving astronomical space observation data input controller 19.

The astronomical observatory data input controller 19 which receives a control command transmits a corresponding signal to a component in charge of each function so that the observation data inputted through a dedicated observation data transmission line can be processed.

The astronomical observation data input controller has a function for lossless processing of astronomical observation data input in real time.

Since the data input through the data transmission line is input in real time with a format suitable for the characteristics of the data transmission line, the data is reconstructed into a format that can be used in the mass storage medium 18 of the next stage.

The reconstructed data in real time is stored in the fast operation memory block 25, which is a temporary storage device for real time synchronization.

The high-speed operation memory block 25 does not lose data during this period of time because it requires several microseconds to several milliseconds to write the flash memory of the data when storing the data in the flash memory mounted on the flash storage medium 18 at the rear end. This function saves data temporarily.

The flash memory interface 27 receives data stored in the high speed memory block 25 by a command of the astronomical observatory data input controller 19 and transmits the data to the flash storage medium 18.

The high-speed operation memory block 25 performs functions such as insertion, initialization, functional check of the flash memory, reading of the flash memory, etc., in addition to the transmission of the ultra-high-speed astronomical observation data to the device of the flash memory constituting the flash storage medium 18. In charge. Reference numeral 22 is a shift register block for parallel switching of serial data, 24 is a parallel data transmission line, and 26 is a data transmission line for writing a flash memory.

6 is a flowchart of real-time astronomical observation data.

The astronomical observation data observed by various devices is input through the astronomical observation data input port 1a. The characteristic of astronomical observation data is that when the observation starts, continuous data is input in real time without any time interval until the observation ends.

Data input through the astronomical observatory data input port 1a is transmitted as a differential electrical signal to prevent loss by an external electrical signal during communication.

Differential electrical signals use two lines to represent one electrical signal. When the number of signals used inside the device is small and high speed operation is required, the differential electrical signal is used as it is, but when the number of signals is large, the signal lines connected between components are doubled. use. This function is the differential receiver block (Differential receiver block, 20).

The signal input through the astronomical observation data input port includes information and a signal indicating an observation time in addition to the astronomical observation data.

The astronomical observatory data input controller 19 uses this information and the signal to generate a signal for operating a component used in the astronomical observatory data storage device.

The astronomical observation data input has a feature that is continuously input as continuous real-time data, and the astronomical observation data input controller 19 provides a function of making and supplying a necessary signal so that the data is stored in each component without loss. In charge.

The control signal input from the astronomical space observation data input controller 19 is input to the flash memory while reducing the moving speed of the data so that the serial data is converted into a parallel signal in the differential signal receiver 20 and the data is easily processed at a later stage. The shift register 132 is responsible for the function of creating a byte having a data size.

When all 8-bit data is stored in the shift register, the shift register is stored in the fast operation memory 135 that is a temporary storage device for writing a flash memory without time intervals. The fast operating memory has a size of 2K bytes, which is the same size as the data register 109 of the flash memory. The high speed operation memory 135 is composed of the same number of data bits of the astronomical observatory data input port 1a and is called a high speed operation memory block.

The high-speed operation memory block has two (134, 136), one high-speed operation memory block 134 performs a function to receive the real-time astronomical observation information from the astronomical space observation data input port (1a) without time gap. In addition, the other high-speed operation memory block 136 performs a function of transferring the stored astronomical space observation information to the flash memory.

The data switching between the two high speed operation memory blocks 134 and 136 is performed by the temporary storage buffer switching device 133.

The high-speed operation memory block 136 that transfers data stored in the flash memory has an 8-bit data space, and when it is transferred to the flash storage medium as it is, a large number of signal transmission pins are required, which makes the actual circuit configuration difficult. In order to solve this problem, the parallel data is converted into serial data and transferred. The parallel / serial conversion shift register 139 is responsible for this function.

The serially converted data is transferred to the flash storage medium through the connector 31 for high speed parallel data transmission. Since the transmitted signal cannot be written to the flash memory as it is, it is restored again to its original shape by using the shift register 141 for serial / parallel conversion.

The astronomical observation data input controller 19 generates a signal 29 to be transmitted to the addressing controller 33 of the flash storage medium 18 in addition to generating a signal for operating a component in the storage device. By this signal, the addressing controller 33 in the flash storage medium 18 generates a signal necessary for a component in the flash storage medium 18, and the process of storing real-time astronomical observation data in the flash memory is completed.

Reference numeral 131 denotes a bit separator in the shift register block for parallel switching, and 143 denotes a data pin for storing the flash memory restored by the shift register.

7 is an exemplary configuration diagram of a flash storage medium according to the present invention.

Data input and output to the flash storage medium is via the connector 31. The connector has a parallel structure in which high-speed data can be transmitted, and a control line for controlling a storage medium is also included.

The data transmitted through the connector connects the flash memory 36 to the respective flash memories in a determined number in consideration of the data transfer speed, current transfer capability, and the like.

Flash memory stores digital data by integrating a large memory into a semiconductor.

Problems in the manufacturing process of flash memory or electrical shock during use can damage some of the memory cells. In this case, the flash memory storage medium may be discarded. A typical storage device is constructed by specifying the next storage block at the end of one storage block to avoid this case, so that the failed block can be avoided, but the real-time high-speed astronomical observation data can be avoided this way. It can't be used to configure flash memory directly. The flash memories 32 and 34 of FIGS. 6 and 7 are memories for this purpose. See the description of FIG. 8 below for a more detailed description of these memories 32,34.

The flash storage medium has a separate address flash memory component designation controller 33. The main function of the controller 33 is to use a common moving line of data in order to configure a large number of flash memories in a limited space and to transmit high-speed data. It is a function to control not to give. Reference numeral 35 is a regulator for supplying a flash storage medium.

8 is a memory configuration for storing flash storage medium usage history and flash sector state, which is made in state memories 32 and 34 which directly access the usage history and flash sector state of the flash storage medium.

Flash memory has a feature that makes it impossible to write permanently. The history of flash memory storage media used to maintain the observed data must be maintained. In general, although a user can record information on the use of a flash storage medium, it is not easy for a large number of users to write the data one by one, and the present invention has a function of automatically recording a use history. This memory is a space 42 where this information is recorded. As astronomical observation data includes information on data acquisition, the astronomical observation data controller performs this function.

The problem with using flash memory is that some memory cells do not function properly. If this problem occurs, the entire flash storage medium needs to be discarded, so there must be a function to avoid it. In the present invention, a device that needs to store a large amount of real-time astronomical observing data at a very high speed, the address of the next block at the end of a block, which is a conventional method, cannot handle the speed. Use The bad sector indication 44 of the direct assignment method is to allocate a corresponding bit for each block. By reading the bit, you can increase the transfer speed of the flash memory by knowing the state of the block. Reference numeral 41 denotes a flash storage medium use history and an internal structure of a flash sector state storage memory, and 43 is a storage space for displaying a flash sector state configured by a direct designation method.

9 is a diagram illustrating an operating state of a storage device for astronomical observatory data according to the present invention.

The storage device for astronomical observation data has a total of seven operating states. When the power is applied (51), the ready state (52). This state is a state waiting for the flash storage medium to be inserted. The next state is the state 53 in which the flash storage medium is inserted. In this state, it checks whether a normal flash storage medium is inserted and waits for the next command. The next step is to perform a read and write operation on each memory cell in a state 55 confirming the storage medium, and to check whether the flash memory mounted on the flash storage medium performs a normal function. The next step is to erase the flash storage medium (56). Some flash storage devices have memory that needs to be initialized, rather than a structure that erases the previous data when the next data is written. This is for this purpose. The next step is to record 54 the state of each block identified in the flash memory check step or the history of use of the flash storage medium. The next step is to wait for astronomical observation data (57). When you are ready to save all the data, wait for data to be entered in this state. The next step is to store 58 astronomical observation data in flash memory.

Looking at each of the moving paths, the standby state is first maintained 62 after the power is applied and before the flash storage medium is inserted 63. When the flash storage medium is inserted (63), the transition to the flash storage medium insertion state 53. This state is a state waiting for various functions. If the flash storage medium is inserted but there is no command from the outside, the state 65 remains in place.

The command 76 stores a value obtained by an external command in the flash memory, and stores the value in the flash memory (54). When the saving process is completed (75), it returns to the flash insertion state.

If there is a command 66 to check the state of the flash memo in the flash insertion state, the state goes to the flash memory state to grasp the state of the flash memory. At the end of this process 67, the process returns to the flash storage medium insertion state. When the flash storage medium erase command 68 is executed in the flash storage medium insertion state, the entire flash storage medium is erased. When the process is completed, the medium returns to the medium insertion state again. When the preparation process for storing data in the flash memory is finished, the external memory device 70 transitions to the flash memory write standby state 57 by an external command 70. In this state, if no astronomical observation data is input, the state 71 is maintained. In addition, even if this command falls in the middle of data input, this state is maintained until the 1PPS flag, which is a time synchronization signal, exists every second. In this state, the synchronous signal of the astronomical observation data, 1PPS is checked (72) and data writing (58) is started. When the writing of the data has ended 73, the state transitions to the medium insertion state.

As described above, with reference to the preferred embodiment of the present invention, those skilled in the art will be variously modified and modified within the scope of the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be appreciated that it can be changed.

1: data transmission line
1a: Astronomical data input port
2: real-time data processing unit
3: HDD connection cable
4: PC connection slot
5: Parallel HDD Array
6: Astronomical Observation Data Storage
7: Parallel HDD Array
8: PC
12: control communication line
13: Astronomical Observation Data Storage
14: LCD panel
15: Button for entering a command
16: start button
17: Flash storage media slot
18: Flash storage medium
19: Astronomical Space Observation Data Input Controller
20: Differential receiver block
22: Shift register block for parallel switching of serial data
23: central controller
24: parallel data transmission line
25: Fast Operation Memory Block
26: Data transfer line for writing to flash memory
27: flash memory interface
29: flash memory control signal line
31: connector for high-speed parallel data transmission
32: Memory for storing media state
33: Controller for addressing flash memory components
34: Memory for configuring flash storage history
35: Regulator for Powering Flash Storage Media
36: flash memory
41: Internal structure of memory for storing flash storage medium usage history and flash sector status
42: Flash storage medium usage history storage space
43: Storage space for flash sector status display
44: bad sector
100: input / output controller
101: address register
102: status register
103: input command port
104: control terminal
105: ready release pin
106: command register
107: control circuit
108: Decoder for selecting the storage direction of the line in the memory
109: data register
110: flash memory cell
111: Decoder for selecting storage direction of memory
120: block of 64 pages
121: Page configured with minimum storage space in flash memory
122: plane consisting of several blocks
131: Bit separator in shift register block for parallel switching
132: shift register for parallel switching of serial data and data rate reduction
133: Temporary storage buffer 0 and 1 switching device for writing flash memory
134: 0 high-speed memory block for temporary storage of flash memory
135: Fast operation memory of the same size as data registers in flash memory
136: high-speed memory block 1 is a temporary storage device for writing flash memory
138: parallel / serial conversion block
139: Shift register for parallel / serial conversion
141: Shift register for serial / parallel conversion
142: block composed of shift registers for restoring a serially converted signal to a parallel structure
143: Data pin for storing flash memory restored by shift register

Claims (7)

A communication controller for communicating with an external device such as receiving an external control command;
An astronomical observatory data input controller configured to generate and supply a necessary signal so that real-time astronomical observatory data input through the astronomical observatory data input port is stored in a flash memory without loss;
Control command to control each component of the storage device of the astronomical observatory data according to the control command input through the command button in addition to the control command through the control communication line from the remote site, and to receive the astronomical astronomical observation data from the astronomical observatory data input controller. Central controller to achieve the;
An LCD panel which checks an operation state of the data storage device and displays the usage ratio of the flash storage medium, etc .;
A high speed operation memory block for temporarily storing data in order to prevent data loss while storing data in a flash memory mounted on a flash storage medium; And
And a flash memory interface configured to receive data stored in a high-speed operation memory block by a command of an astronomical observatory data input controller, and transmit the data to a flash storage medium. The method according to claim 1,
The high-speed operation memory block is a real-time large-capacity using the flash memory, characterized in that further performing the function of inserting, initializing, checking the function of the flash memory, reading the flash memory, etc. in the flash memory device constituting the flash storage medium; Storage device for astronomical observation data. The method according to claim 2,
A differential signal receiver for converting a differential electrical signal of the astronomical observatory data input through the astronomical observatory data input port into a single signal line; And
A shift that converts serial data input from a differential signal receiver into a parallel signal by using a control signal input from an astronomical observatory data input controller, and performs a function of reducing data moving speed and generating bytes, which are input data sizes of a flash memory. Storage device for real-time large-scale astronomical observation data using a flash memory, characterized in that it further comprises a register. In the method for storing a large amount of data for astronomical observations generated in real time ultra-fast,
The astronomical observatory data input controller uses the 1PPS, which is the second synchronization signal of the astronomical observatory data, and the time information transmitted simultaneously with the high-speed astronomical observation data, and the clock signal for data transmission, such as the size of the data register in the flash memory. Generating a signal for constructing the block;
Configuring each shift register corresponding to each line to process serial signals input at high speed through several strands of communication lines, and configuring the shift registers in parallel data in bytes;
Storing a high-speed astronomical observation data in bytes in a high-speed memory by constructing a high-speed memory block composed of a high-speed memory that has the same size as the number of input lines having the same size as the data register of the flash memory. ; And
In order to store data input in real time without loss, two memory blocks for high-speed operation are respectively configured, while one block stores the real-time astronomical observation data input through a communication line in the other for high-speed operation. The memory block for the high-speed operation of the data storage method comprising the steps of: transmitting the stored data to a flash storage medium. The method of claim 4,
Converting parallel data into serial data using a high speed clock when transferring data of a high speed operation memory block to a flash storage medium;
Reconstructing data transmitted in a serial manner through a connector and converting the data into a form inputtable to each flash memory constituting a flash storage medium; And
Comprising a plurality of flash memory in a parallel structure on a single substrate to write a real-time astronomical observation data to the flash memory at a high speed to perform a plurality of information writing at the same time; Flash memory comprising a Storage method of real-time large-scale astronomical observation data using The method according to claim 5,
Increasing the memory placement density by reducing the number of connection lines by configuring a separate flash memory controller in a storage medium so as to arrange a large amount of memory in a small space and using a moving line of data in common; And
A state memory that indicates whether the flash memory can be stored as a memory can be configured as a separate memory in a direct access method with high-speed access so that a defective area can be displayed so that data is not stored in this area. A method of storing real-time large-scale astronomical observation data using a flash memory, comprising: preventing loss. The method according to claim 5,
In order to efficiently manage the storage media, the storage media usage history memory is configured separately so that the data stored in this memory can be automatically stored in the observation schedule, data size, measurement location, etc. Making; And
In order to transmit high-speed real-time data without loss, parallel lines are constructed using high-speed memory that processes signals by separating control lines and separate data transmission lines, and separates input / output lines and writes or reads at one time. Delivering error-free data to the memory; Storage method of real-time large-scale astronomical observation data using a flash memory comprising a.
KR1020100075811A 2010-08-06 2010-08-06 Storage apparatus of real time mass storage astronomical and space phenomena observation data using flash memory KR20120013679A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101584525B1 (en) * 2014-08-14 2016-01-15 한국 천문 연구원 Optical wide-field patrol system
WO2020180045A1 (en) * 2019-03-07 2020-09-10 Samsung Electronics Co., Ltd. Electronic device and method for utilizing memory space thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101584525B1 (en) * 2014-08-14 2016-01-15 한국 천문 연구원 Optical wide-field patrol system
WO2020180045A1 (en) * 2019-03-07 2020-09-10 Samsung Electronics Co., Ltd. Electronic device and method for utilizing memory space thereof
US11487452B2 (en) 2019-03-07 2022-11-01 Samsung Electronics Co., Ltd. Electronic device and method for utilizing memory space thereof

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