JPS63108837A - Communication data observation equipment - Google Patents

Abstract

PURPOSE:To perform a various kinds of data check, by accumulating data from a line in an input data memory based on a constant rule, and retrieving and displaying a data string out of the input data memory. CONSTITUTION:The data from the line between computers A and B is logged by a data logging means 2, and a logged data is accumulated in the input data memory 3 based on the constant rule. The logged data or the data taken out from the input data memory 3 is sent to and displayed on a display unit 4a via a display control part 4. The display control part 4 displays the data in logging on the display unit 4a in real time, and also, retrieves a retrieval character string out of the input data memory 3 by interlocking with a data retrieval means 6, and displays the data including the character string on the display unit 4a. The data retrieval means 6 is a means to detect the retrieval character string and the retrieval character is set by the retrieval character string setting part 7a of a setting means 7.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a communication data observation device for searching communication data on a line.

(Prior Art) A method for checking online data has been proposed, for example, in Japanese Unexamined Patent Publication No. 59-144960. In this method, when logging data on the line, the bit pattern of the data that you want to detect is registered in the recording device in advance, and when data that fails this bit pattern is input, the logging operation is stopped, and the recording device This method reproduces and displays the data recorded on the .

(Problem to be solved by the invention) However, in this conventional method, the character string to be detected is entered in advance before logging starts, and logging ends at the same time as the search ends, so a particularly large input memory is not required. Although it is superior in terms of effective use of input memory,
This is inconvenient when you want to detect multiple strings. In particular, with the recent decline in memory costs, it is now possible to have large-capacity memory, and it is also possible to stop logging at any time, search the contents of the input data memory, and perform various data checks. This is requested.

(Means for Solving Problems) A communication data observation device according to the present invention includes a means for logging data from a line, an input data memory for storing logged data according to a certain rule, and a means for logging data from a line, and an input data memory for storing logged data or the input data. a display means for displaying data retrieved from the data memory; a setting means for setting a search string; and a display means for searching for a search string from the data input into the input data memory and displaying data containing the string. It is equipped with a search means to display the information on the screen.

(Function) Data from the line is logged and stored in the input data memory according to certain rules, and the data being logged is displayed on the display means in real time. When the search character string is set, the search means searches the input data memory for a data string including the character string and displays it on the display means.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram illustrating the configuration of a communication data observation device 1 according to the present invention.

The observation target to be observed by this communication data observation device l is the communication line connected between the computer A and the computer 8, and the communication data transmitted on this line is logged by the data logging means 2, and the input data is In this example, communication data S transmitted from computer A to computer B is stored in memory 3 according to certain rules.
D (Sending Data) and communication data RD (Receiving) transmitted from computer B to A.
Data) are stored alternately. The data stored in the input data memory 3 is the maximum capacity of the input data memory 3 until the operation key for ending logging is operated.

The display control section 4 displays the data being logged on the display section 4a in real time, and searches for a search string from the input data memory 3 in conjunction with a data search means 6, which will be described later. The included data is displayed on the display section 4a.

The data search means 6 detects a character string to be searched from the contents of the input data memory 3, and the search string is set by operating a search string setting section 7a, which is a function of the setting means 7. The setting means 7 is equipped with various dedicated function keys, and in addition to the search string setting section 7a, an observation start/end instruction section 7b for instructing the start and end of the logging operation is provided.

In this example, the Funk Sylan keys include a search data set key that is operated when setting a search string, a search key that changes the monitor screen from a logging screen to a search screen, and a search key that is operated when setting search data. A search data set key for specifying a search direction, a search direction instruction key for specifying a search direction, etc. are provided.

The screen 5 is shown with ruled lines 10 in order to make it easier to identify the columns and rows in which the displayed characters are located, but these ruled lines 10 do not appear on the actual screen 5 and will be explained as appropriate in the explanation. Shown above.

"Cloth tip" and "left arrow" marks 9a are displayed on the display lines of the 1st row, 1st column and the 2nd row, 1st column of the screen 5.

9b indicates the direction of information transmission, and if an online monitoring device is currently placed in the middle of the communication line between computers A and B, the first line marked 9a with the "cloth tip" mark will indicate the information transmission direction. Information transmitted from computer A to computer B is displayed on the display line, and information transmitted from computer B to computer A is displayed on the second display line to which the "left arrow" mark 9b is added. be done.

In this example, information transmitted from computers A and B is displayed alternately, and when the ASCII character "E," shown in the first row and second column is transmitted from computer A to B, the information transmitted from computers A and B is displayed alternately. This empty information area, where no information is transmitted from B to A, is indicated by a hyphen character "-".

Of course, the symbol "." may be used instead of the hyphen character, and it is particularly preferable to display a simple symbol that can be easily distinguished from ASCII characters and Hex characters.

In FIG. 2, when the search key is operated, screen 5
An area window section 8 is created separated by a delimiter mark 11 written over two lines in the lower right corner 5a of
Inside this area window 8 is a symbol (FIN) indicating the search status.
D) and He indicating the previously input string to be searched.
In addition to the x display and the symbol 8a indicating the search direction, an input instruction symbol 8b and the like are displayed. After setting the character string to be searched in this way by operating the setting means 7, set the search direction to the previous page side or the next page side using the search direction instruction key, and press the ENTER key. Start the search. Note that in this example, a blank space is provided every third line, but this is to make the screen 5 easier to see.

Next, the data search procedure will be explained.

First, when the search key is operated, the screen changes to the monitor stop screen shown in FIG. Then, when the search data center key is operated to specify the Hex code of the character string to be searched, this search data is displayed in the area window 8 appearing at the bottom of the screen 5 as shown in FIG. 3. (In this example, the search string is rABJ, so the data displayed in area window 8 is r4142J)
.

After setting the search string in this manner, the search direction is set using the search direction instruction key, and the search is started by inputting the enter key.

FIG. 4 exemplifies the case where the search is started in the direction where newer data than the data displayed on the screen 5 is stored, and for this reason, the area window section 8 displays ">". Then, when the desired search string is found,
The page is displayed so that the beginning of this character string is placed in the first and second lines of the screen 5. On the other hand, when there is no data to be searched (when the search fails), the symbol 8b blinks or the characters N0T-FOUN indicate failure.
D is displayed and the process returns to the input character request step without exiting the search mode. At this time, it is also possible to exit the search mode and enable other key operations.

FIG. 5 is a diagram showing the configuration of the input data memory 3. The earliest data in terms of time is stored at the first address 3a of the input data memory 3, and the pointer can be pointed to except for the empty area 3e. The latest data in terms of time is stored at the last address 3b. The area surrounded by frame 3c indicates the area where the data of the currently displayed screen is displayed,
The area surrounded by frame 3d indicates the area where the searched character string exists. In this example, as mentioned above, computer A
The data transmitted between and 8, SD,−,,SD,.

SD, , , RD, -+ , RD, , RD-, + are stored alternately (see the enlarged view of FIG. 5).

FIG. 6 is a flowchart illustrating the search procedure. The character string to be searched is stored in the search buffer, and the number of search characters is stored in the search character count buffer. In the flowchart shown in Figure 6, XX
indicates a pointer pointing to an address in the input data memory 3, and XX0 indicates the starting address in the search buffer.

Further, YY indicates the address where the first data on the currently displayed screen 5 is stored (see FIG. 5).

Step (3) is a step of determining whether or not a character to be searched exists at the first address (xxe) of the search buffer in the input data memory 3, and this step compares the contents of the pointer XX and address YY. be judged by that. If they match, the values of the pointer and address YY are incremented by (+1) in step ■, and preparations are made to search for the next character to be searched, and in step ■, the first character has already matched. Therefore, the value of the match counter is incremented by (+1).

The value of this match counter is compared with the value stored in the search character count buffer. Then, in step ■, if you check the match between the value of the one-defeat counter and the value stored in the search character count buffer, it means that one-defeat strings have been detected for all the search strings, so step Display the data containing the search string on the screen.0 In this example, in order to display the searched string at the beginning of screen 5, the screen display is performed from the position obtained by subtracting (the number of search characters) from YY. ing. On the other hand, if all the character strings do not match in step (2), the process returns to step (2). Incidentally, until the first character of the character string to be searched for matches in step (2), matching data is searched for in steps (2) to (2). If a matching search character does not exist in step (2), the step of requesting input characters as described above is executed in step (2), and the process ends.

(Effects of the Invention) As described above, according to the present invention, various character patterns can be searched any number of times from the communication data stored in the input data memory in one monitoring operation.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing an embodiment of the communication data observation device according to the present invention, Figure 2 is a diagram illustrating the display screen when the search key is manually operated, and Figure 3 is the area window when searching data is sent. Figure 4 is a diagram illustrating the contents of the area window when a search method is specified, and Figure 5 is an enlarged view of the data structure and specific data arrangement stored in the input data memory. FIG. 6 is a flowchart illustrating the search procedure. 1...Communication data observation device 2...Data logging means 3...Input data memory 4...Display control section 4a...Display section 6...Data search means Patent applicant Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru Figure 7 I! Figure 5

Claims (1)

[Claims] 1) A means for logging data from the line, an input data memory for storing the logged data according to a certain rule,
a display means for displaying logged data or data retrieved from the input data memory; a setting means for setting a search string; searching for a search string from the data input to the input data memory; A communication data observation device characterized by comprising a search means for displaying included data on the display means.