KR20030018141A - Stream Data Processing System and Method for the Same - Google Patents

Abstract

PURPOSE: A system and a method for processing stream data are provided to process the stream data fast by outputting sliced stream data, and to output the stream data according to a processing limit of each operator. CONSTITUTION: The system comprises the stream data outputting device(10) slicing and outputting the output stream data according to a number of operators(T1-Tn) and processing amount, and a plurality of operators(T1-Tn) processing the sliced stream database outputted through the stream data outputting device(10). The stream data outputting device(10) outputs the sliced stream data to the operators(T1-Tn) through a data bus line connecting to the operators(T1-Tn) and outputs a clock signal to the operators(T1-Tn). The operators(T1-Tn) process the sliced stream data on the stream data bus line with a constant time interval through an algorithm if the sliced stream data is inputted through the stream data outputting device(10).

Description

Stream Data Processing System and Method for the Same

The present invention relates to a stream data processing system and a method thereof, and more particularly to a stream data processing system and method that can improve the limitation of the data busline for transmitting a large amount of stream data.

In recent years, many image processing apparatuses and communication equipment for transmitting a large amount of stream data have emerged. In particular, the image processing apparatus is developed to acquire a more precise image, the more precise the image to be obtained, the larger the amount of data. Therefore, in the case of a precise image processing apparatus, a large amount of stream data according to the obtained image is transmitted to a plurality of CPUs so that the data is processed in each of the plurality of CPUs.

A structure of a system for transmitting stream data to a plurality of arithmetic units that process data in a stream data output apparatus that outputs a large amount of stream data, such as the image processing apparatus or communication equipment, is illustrated in FIG. 1.

That is, the stream data output device 1 for outputting the stream data is connected to a plurality of data operation devices D1 to Dn through a data bus line, so that the stream data output device 1 transmits the stream through the data bus line. The data is drawn and the clock signal is outputted to the plurality of computing devices D1 to Dn with the qufe. Here, the stream data output device 1 attaches a header when outputting data in order to transmit data to a specific computing device. That is, the structure of the data transmitted through the data bus line has a structure in which a header includes information on a destination and data length to which the data should go, as shown in FIG. Accordingly, the plurality of computing devices D1 to Dn process the data only when the destination of the header of the data corresponds to the destination.

However, in the above structure, the capacity of data that can be transmitted through the data bus line is limited due to the limitation of data throughput of the plurality of computing devices D1 to Dn.

That is, when the stream data output device outputs a large amount of stream data at once, although the plurality of computing devices process the stream data, the data transfer rate of the data bus line is limited due to the limitation of throughput of each computing device. That is, there is a problem that the throughput cannot be greater than the throughput of the computing device.

Therefore, even when the data throughput of the stream data output device and the data bus line is large, there is a problem in that the overall stream data processing speed becomes slow due to the limitation of the data throughput of each computing device. The problem is even worse.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and an object thereof is to allow a stream data output device that outputs stream data that requires processing to be output by slicing stream data according to throughput limitations of each computing device. Disclosed are a stream data processing system and a method for processing fast stream data.

1 is a block diagram showing the configuration of a conventional stream data processing system;

2 is a block diagram showing the configuration of a stream data processing system according to the present invention;

3 is a block diagram showing the configuration of the stream data output device of FIG.

4 is a waveform diagram illustrating a waveform of a signal transmitted from the data bus line of FIG. 2;

5 is a flowchart illustrating a flow of a stream data output method according to the present invention.

<Explanation of symbols on main parts of the drawings>

T1 ~ Tn: Arithmetic Unit C1 ~ Cn: Decoder

10: stream data output device 11: counter portion

12: multiplexer

According to a feature of the stream data processing system according to the present invention for solving the above problems, a stream data output device for outputting stream data so that the obtained data is processed, and stream data output from the data output device. And a plurality of arithmetic units for processing, wherein the stream data output device is configured to slice and output stream data by the number of a plurality of arithmetic units according to data throughput of the plurality of arithmetic units.

Further, according to a feature of the stream data processing method according to the present invention, the stream data output device for outputting data requiring processing is made by slicing stream data output according to the data throughput of a plurality of computing devices that process the stream data. A first step; a second step of outputting the stream data sliced in the first step by the stream data output device; and a third step of processing the slicing stream data output in the second step by a plurality of computing devices. .

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

As shown in FIG. 2, the stream data processing system according to the present invention includes a stream data output device 10 for slicing and outputting stream data to be output according to the number of processing units T1 to Tn and the throughput thereof; And a plurality of computing devices T1 to Tn for processing the slicing stream data output through the stream data output device 10.

Here, the stream data output device 10 outputs slicing stream data to the plurality of computing devices T1 to Tn through data bus lines connected to the plurality of computing devices T1 to Tn, and separately from the The clock signal is output to the plurality of computing devices T1 to Tn.

Further, according to the stream data processing system according to the present invention, the stream data output device 10 may generate channel information per slicing stream data and output the same. In this case, the stream data output device 10 Channel information of the slicing stream data output according to the clock signal is generated, and the channel information is transmitted to each of the computing devices T1 to Tn through a separate channel line.

When the slicing stream data is input through the stream data output device 10, the arithmetic units T1 to Tn may process the slicing stream data on the stream data bus line at a predetermined time interval through an algorithm stored therein. Can be.

In the present embodiment, the computing devices T1 to Tn decode channel information output by the stream data output device 10 and process slicing stream data according to the channel information. That is, the channel decoder stores the channel information of the slicing stream data to be processed by the computing devices T1 to Tn in the computing devices T1 to Tn, and decodes the channel information to the computing devices T1 to Tn. C1 to Cn are mounted so that the computing devices T1 to Tn process slicing stream data having the same channel information only when the decoded channel information is the same as the stored channel information.

The stream data output apparatus 10 generates the channel information as described above, counts the clock signal output as shown in FIG. 3 so that the slicing stream data is output, and counts the counted number as channel information. A multiplexer which selects one slicing stream data among the plurality of slicing stream data according to the counter counted by the counter unit 11 and the counter unit 11 and outputs the slicing stream data through the data bus line; 12).

Here, if there are N output devices, the counter unit 11 counts and initializes the clock signal to 1 to N, and then repeats counting to 1 to N again. The counted number is output to the plurality of computing devices T1 to Tn as channel information through the channel line, and the multiplexer 12 selects slicing stream data to be output to each computing device according to the number. This is transmitted to the data bus line. That is, when the number of arithmetic units is N, the multiplexer 12 selects one of the slicing data having channel information of 1 to N and outputs the selected one to the outside.

According to the present invention, a waveform in which the clock signal, channel information, and slicing stream data are transmitted is illustrated in FIG. 4.

(A) of FIG. 4 shows the waveform of a clock signal, (b) shows channel information which is the number which counted (a), and (c) shows the data output. In this case, the first arithmetic unit T1 processes slicing stream data according to channel information having a value of '1' among the channel information. Accordingly, even when the stream data output device 10 outputs a large amount of stream data at a time, and thus the data throughput of the data busline is 100 MB / s, the computing devices T1 to Tn may have a number of '10'. In the case of, each receives data at a speed of 10MB / s, which is its data throughput.

Hereinafter, a stream data processing method according to the present invention will be described with reference to FIG. 5.

First, in the first step, the stream data output device slices a large amount of stream data to be output according to the number of processing devices and their throughput. (S1)

In a second step, the stream data output device counts clock signals applied to the plurality of computing devices through a counter unit and generates channel information according to the number. (S2)

In the third step, the multiplexer of the stream data output apparatus selects one of the slicing stream data of the plurality of channels according to the channel information generated in the second step and outputs it through the data bus line. It is transmitted through the channel line. (S3)

In a fourth step, the computing device decodes channel information transmitted through the channel line. (S4)

In a fifth step, the computing device compares and determines whether the decoded channel information is the same as the channel information of the stored slicing stream data for processing. (S5)

If the transmitted channel information and the stored channel information are the same in the fifth step, the arithmetic unit processes the slicing stream data transmitted through the data bus line in the sixth step. (S6)

On the other hand, if the transmitted channel information and the stored channel information is not the same in the fifth step, the operation unit ignores the slicing stream data transmitted through the data bus line in the seventh step. (S7)

Here, the computing device has a built-in separate program for performing the comparison determination, which can be easily invented by those of ordinary skill in the art will not be described in detail.

The stream data processing system and method thereof of the present invention configured as described above are intended to be output by a stream data output device for outputting a large amount of stream data according to the number of a plurality of arithmetic units processing the stream data and the data throughput thereof. By slicing and outputting stream data, a data busline that transmits data to a plurality of arithmetic units solves the problem that the data throughput is limited due to the throughput limitation of the arithmetic unit. There is an effect that can make the data processing faster in the system.

Claims (8)

A stream data output device for outputting stream data so that the obtained data is processed; It includes a plurality of arithmetic unit for processing the stream data output from the data output device, And the stream data outputting device slices the stream data by the number of the plurality of computing devices according to the data throughput of the plurality of computing devices. The method of claim 1, The stream data output apparatus includes a counter unit for counting a clock signal output when the slicing stream data is output; And a multiplexer for selecting and outputting slicing stream data among a plurality of stream data sliced according to the number counted by the counter. The method of claim 2, The stream data output device outputs channel information of slicing stream data according to the number of clock signals counted by the counter unit. And the channel information of the slicing stream data to be processed is stored in the arithmetic unit so as to process the slicing stream data having channel information corresponding to the stored channel information. The method of claim 3, wherein And the computing device further comprises a decoder for decoding the channel information output from the stream data output device. A first step of slicing, by the stream data output device for outputting data requiring processing, the stream data output according to the data throughput of a plurality of computing devices for processing the stream data; A second step of outputting, by the stream data output device, the stream data sliced in the first step; And a third step of processing the slicing stream data output in the second step by a plurality of computing devices. The method of claim 5, The second step includes counting a clock signal output from the output device; And selecting and outputting the plurality of slicing stream data sliced in the first step according to the number counted in the counting process. The method of claim 6, The stream data processing method may further include generating and outputting channel information of slicing stream data output according to the number counted in the counting process by the stream data output apparatus after the counting process of the clock signal. Stream data processing method. The method of claim 7, wherein The stream data processing method includes storing information on a channel of slicing stream data to be processed by the computing device in the computing device; And after the information on the channel is stored, the arithmetic unit decoding the channel information output during the channel information generation and output process. And wherein said third step is executed only when the information about the stored channel and the decoded channel information match.