JP3193922B2 - Stream data processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stream data processing apparatus for processing a large amount of data in a stream.

[0002]

2. Description of the Related Art In recent years, the spread of databases and the like has rapidly increased, and the amount of stored data has been increasing on a large scale. In such a situation, data streaming is one of very effective methods for processing a large amount of data.

[0003] In a conventional apparatus for handling stream data, the data itself is processed as a stream. However, the processing itself often relies on hardware, and detected error information and the like is obtained by using physical wiring or the like. It was supplied to the necessary parts.

[0004]

However, in the above-described conventional configuration, since the wiring itself is often used, there is a limit to measures such as miniaturization of the device and flexibility of multi-stage.

The present invention solves the above-mentioned problems of the prior art. By transmitting error information and the like to a required portion by placing it in a data stream, the number of parts is reduced, the size is reduced, and the number of stages is reduced. It is intended to provide a system that is extremely flexible.

[0006]

In order to achieve this object, the present invention adds an area for writing processing information to data.
Stream generation means for generating a stream;
Process on stream generated by Ream generation means
And process information is stored in the area added to the stream.
Stream processing means to fill in, and
Check means for generating control signals based on processing information
The processing information indicates the processing result and the processing method that performed the processing.
A stream processing means comprising an ID code for identifying a stage;
Is used as processing information to identify the processing result and the processing means.
Enter the D code and check the processing result and the ID code.
And a control signal is generated based on the control signal .

[0007]

According to the present invention, the stream generation means identifies the data input from the database or the like and the processing result information such as an error and the processing means which has performed the processing.
The stream is converted into a series of streams while providing a temporary area in which the ID code is written , and the stream processing means performs the stream processing .
Occurred as a result of processing such as searching for the trim
Information such as an error is stored in the I
Fill in the area with the D code and check before
Based on the information written in the
Necessary control signals such as aborting stream generation processing
The stream processing means and the checking means.
Transmission of necessary information without physical signal lines between them
This makes it very flexible for multi-stage stream processing means .

[0008]

【Example】

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1A is a diagram showing a format of a data stream in one embodiment of the present invention. FIG.
In (a), 1A1 is an unspecified length processing block, 1A1
Each of A2 and 1A3 is a delimiter inserted in the data stream according to the present invention, which divides the processing unit, and a field in which error information and the like are written (hereinafter, referred to as a mark field).

The operation of the apparatus according to this embodiment will be described below with reference to the functional block diagram of this embodiment shown in FIG. Data fetched from the database 21 into the stream data generator 22 is divided into processing blocks according to preset conditions, and a stream having the format shown in FIG. 1A is created. Reference numeral 23 denotes a processing unit for performing a search process on the stream. Information such as an error generated in the process is written in a mark field processed as one byte following the delimiter, and is sent downstream together with the stream. Reference numeral 24 denotes a mark field check unit that checks a mark field in the stream processed by the search unit 23. If information such as an error is written in the mark field by the processing unit 23, control corresponding to the information is performed. Is performed.

FIG. 3A shows a delimiter, and FIG. 3B shows a bit arrangement of a mark field. The delimiter may be any symbol that cannot appear in the stream, and in this embodiment, 1 is set in the entire stream width.

The mark field describes information indicating the type of the error, as well as the ID code of the processing unit in which the error has occurred. By providing this processing unit ID code, it becomes possible to connect a plurality of processing units to another stage without changing the hardware connection.

As described above, according to the present embodiment, the number of components such as wiring and sockets is reduced by providing a means for transmitting error information and the like using a data stream without using a hardware connection. In addition to the above-described function of inputting the processing unit ID, this also leads to easy realization of a multi-stage system, and also indicates that the system can be flexibly adapted to miniaturization and measurement.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 1B shows the format of a data stream according to an embodiment of the present invention. The processing block of 1B1, the delimiter of 1B2, and the mark field of 1B3 are the same as those in FIG. 1A. However, FIG.
In (b), when creating a stream, the width of the stream is increased by adding a tag section 1B4 of 1 bit or more, and information of the processing result is also written in the tag section to perform more detailed processing. is there.

In the second embodiment, FIG.
Although the mark field 1B3 is described after the delimiter 1B1, the tag 1B4 can be used as delimiter information. In this case, the delimiter 1B1 does not need to be used.

[0017]

As described above, according to the present invention, the processing result of error information and the like in the data stream and the processing method that performed the processing are described.
By providing a space for writing an ID code for specifying a stage and using the space, an excellent data processing device that can simplify the system configuration and easily enable multistage connection can be realized.

[Brief description of the drawings]

FIG. 1A shows a format diagram of a data stream according to a first embodiment of the present invention. FIG. 1B shows a format diagram of a data stream according to a second embodiment of the present invention.

FIG. 2 is a functional block diagram of a data processing device according to the first embodiment of the present invention.

FIG. 3A is a diagram illustrating a bit arrangement of a delimiter symbol according to the first embodiment of the present invention. FIG. 3B is a diagram illustrating a bit arrangement of a mark field according to the first embodiment of the present invention.

[Explanation of symbols]

 1A1 Processing block 1A2 Delimiter 1A3 Mark field 1B1 Processing block 1B2 Delimiter 1B3 Mark field 1B4 Tag 21 Database 22 Stream data generator 23 Processing unit 24 Mark check unit 25 System control processor 26 System bus

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masao Ito 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Noboru Tamura 1006 Odaka Kadoma Kadoma, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor ▲ Tsuru ▼ Takeshi Hayashi 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-57-207960 (JP, A) JP-A-59-180810 (JP) JP-A-1-171167 (JP, A) JP-A-59-94941 (JP, A) JP-A-59-60667 (JP, A) JP-A-2-78059 (JP, A)

Claims (1)

(57) [Claims] An area for writing processing information is added to data.
Stream generation means for generating a stream;
Process on stream generated by Ream generation means
And process information is stored in the area added to the stream.
Stream processing means to fill in, and
Check means for generating control signals based on processing information
The processing information includes a processing result and processing means that performed the processing.
The stream processing means comprises an ID code for identifying
Processing result and ID for identifying the processing means as processing information
Enter the code and check the processing result and ID code
A stream data processing device that generates a control signal based on a stream data.