JPH06120915A - Communication state monitoring method - Google Patents

Abstract

PURPOSE:To specify a fault content and to analyze the tendency of fault occurrence and the frequency of occurrence of the fault by collecting pieces of information representing communication states detected by both equipments and comparing them and adding a time to the information when the information takes place. CONSTITUTION:A 1st equipment 1 is set to a host side, a 2nd equipment 2 is set to a terminal equipment and the equipment 1 sends an information transmission request signal 6 to the equipment 2. Upon the receipt of the signal 6, the equipment 2 adds the information representing the occurrence time to the information of communication state detected so far by the equipment 2 and returns the result to the equipment 1. The equipment 1 compares the information representing the communication state of the equipment 2 detected by the equipment 1 with the information received by the equipment 2 to discriminate whether a fault comes from a line 3 or from the equipment 2. Thus, the fault content is specified and the fault occurrence tendency in time series and the frequency of occurrence are analyzed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication state monitoring method for monitoring the communication state between devices that exchange information using a communication line.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram showing a conventional communication state monitoring method. In the figure, 1 is a first device, 2 is a second device, 3 is a line connecting the first device 1 and the second device 2, and 4 is a first display connected to the first device. A device 5 is a second display device connected to the second device 2, and 8 and 9 are line test devices connected to the first device side or the second device side during testing or maintenance, respectively.

Next, the operation will be described. First device 1
And the second device 2 are connected by a line 3, and information is exchanged between the first device 1 and the second device 2. The communication state between the first device 1 and the second device 2 is
On the side of the first device 1, the communication state information detected inside the first device 1 is displayed on the display device 4, or
The line test device 8 connected at the time of maintenance detects and displays. On the second device 2 side, similarly to the first device 1 side, the communication status information detected inside the second device 2 is displayed on the display device 5 or detected by the line test device 9.・ Display is performed.

[0004]

As described above, according to the conventional communication status monitoring method, the communication status information detected on the first device 1 side is on the first device 1 side and the second device 2 is on the second device 2 side. Since the detected communication status information can be grasped only on the side of the second device 2, a person must go to both points to collect the information and exchange the information with each other. In addition, there is a problem that it is not possible to determine whether the information about the communication failure detected by either the first device 1 or the second device 2 is a fault on the line or a fault on the partner device.

The present invention has been made in order to solve the above-mentioned problems. One of the devices collects information of both devices, and one device can make a comprehensive judgment. The purpose of the present invention is to obtain a communication status monitoring method in which information for analyzing the frequency and tendency of errors can be obtained by handling time-series data.

[0006]

SUMMARY OF THE INVENTION A communication status monitoring method according to the present invention transmits a communication status of a destination to either one or both of a first device and a second device for exchanging information, and detects both. The communication status information is matched, and the time when the status change occurs is added to the information to be transmitted.

[0007]

According to the communication state monitoring method of the present invention, the information of the communication state detected by both devices is collected and compared, and the time of occurrence is added to the information of the communication state.

[0008]

EXAMPLES Example 1. A communication state monitoring method according to the first embodiment of the present invention will be described below with reference to the drawings. 1 is a block diagram showing a communication state monitoring method according to a first embodiment of the present invention. In the figure, 1 to 5 are the same as the conventional ones, and thus the description thereof is omitted. Reference numeral 6 is a request signal for information transmission sent from the first device 1, and reference numeral 7 is a return signal sent from the second device 2 in response to the request signal 6.

Next, the operation will be described. In FIG. 1, when the first device 1 is the host side and the second device 2 is the terminal device, the first device 1 sends an information transmission request signal 6 to the second device 2, When receiving the information request signal 6, the second device 2 adds the time of occurrence of the information detected on the second device 2 side to the information on the communication state detected in the second device 2 so far, Return to device 1. In the first device 1, the communication state with the second device 2 detected by the first device 1 side and the communication state information detected by the second device 2 side received from the second device 2 It is judged whether it is the fault in 3 or the fault on the partner device side. An example of comprehensive judgment on the side of the first device 1 is shown in FIG. In FIG. 2, a line 10 extending downward from the first device 1 in the drawing shows the first device 1 side, and a line 11 extending downward from the second device 2 in the drawing shows the second device 2 side, The lines between the lines 10 and 11 show the flow of information, and a to j on the left side of the line 11 in the figure show the pattern of failure occurrence, and the table on the right side of the figure shows the details of the failure and the first device 1. It shows the overall judgment on the side. For example, pattern a
Then, when a failure occurs in the line 3 from the first device 1 to the second device 2, the second device 2 judges that no signal has arrived and there is no incoming call, and therefore the reply from the second device 2 is not received. Nonetheless, the first device 1 makes a judgment of no response, and the first device 1 makes a comprehensive judgment of the downlink abnormality.

Embodiment 2. In the above embodiment, the case of the one-to-one communication line has been described, but as shown in FIG. 3, similarly in a polling system such as a wireless line, the first device (with a one-to-n station configuration) Even if the host side) collects the information of a plurality of second devices (terminal side) and makes a comprehensive judgment, the same effect as in the above embodiment can be obtained.

Embodiment 3. In the first and second embodiments, since the communication line and the monitoring line are the same, the line 3 is completely
If is disconnected, it will not be possible to collect further information, so
Real-time monitoring is not possible. Therefore, as shown in FIG. 4, even if the communication line 12 and the monitoring line 13 are arranged independently of each other, the same effect as in the above embodiment can be obtained.

[0012]

As described above, according to the present invention, the communication state information of the other party is transmitted to one or both of the first and second devices that exchange information, and the communication state information detected by both is transmitted. Since the information to be transmitted is added with the time when the status change occurred, it is possible to distinguish between the failure on the line and the failure on the device side, and to identify the failure content, as well as the time series. It is possible to obtain the effect that it is possible to check the tendency and frequency of occurrence of specific failures.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a communication device showing a communication state monitoring method according to a first embodiment of the present invention.

2 is a judgment diagram showing a failure occurrence pattern and comprehensive judgment of the communication state monitoring method in FIG.

FIG. 3 is a configuration diagram of a communication device showing a communication state monitoring method according to a second embodiment of the present invention.

FIG. 4 is a configuration diagram of a communication device showing a communication state monitoring method according to a third embodiment of the present invention.

FIG. 5 is a configuration diagram of a communication device showing a conventional communication state monitoring method.

[Explanation of symbols]

 1 First Device 2 Second Device 3 Line 4 First Display Device 5 Second Display Device 6 Information Transmission Request Signal 7 Information Return Signal

Claims (1)

[Claims] 1. A communication state of a destination is transmitted to one or both of the first and second devices that exchange information, the communication state information detected by both is correlated, and the information to be transmitted is A communication state monitoring method characterized by adding a time when a state change occurs.