JPS62122436A - Monitor processing system - Google Patents

Abstract

PURPOSE:To attain monitor at any time by including address information to a turn-off part used when communication is executed. CONSTITUTION:A scramble Z is described for a time such as 14ms to the turn- off part 3, an address is described for nearly 1ms and other information is described for nearly 5ms. In receiving a data from a slave station, a master station detects the signal quality at communication and a slave station being a sender is identified by using the address described in the turn-off part. That is, every time the communication with each slave station is executed, the line state is monitored at each slave station and the result of monitor is stored. Since the line state is monitored properly, the system-down time is reduced even if an error takes place.

Description

[Detailed Description of the Invention] [Summary] In a data transmission system that communicates between communication stations connected in a multi-point system, the address of the communication station is included in the turn-off, and the signal quality is determined during two communications. It is disclosed that it is made detectable.

[Industrial application field]

The present invention relates to a monitor processing method, and particularly to a monitor processing method that can appropriately detect signal quality during communication.

[Conventional technology]

Conventionally, for example, slave stations are sometimes connected to a master station in a multi-bond system, and in such systems, the line status regarding communication from each slave station is monitored. .

However, in the conventional case, when the slave station is transmitting data to the master station, a method such as separately contacting each other by telephone etc., interrupting the data transmission, and transmitting a test pattern has been adopted. It was getting worse.

[Problem that the invention seeks to solve]

Although the above-mentioned method has been adopted, it is not possible to monitor data transmission while it is actually being performed, and even when data transmission is interrupted and monitored, it is extremely complicated.

[Means for solving problems]

The present invention solves the above-mentioned problems and enables monitoring at will by including address information in the turn-off section used when one communication is performed.

FIG. 1 shows a basic configuration diagram of the present invention. FIG. 1 (A> represents a communication formant in the conventional case.

FIG. 1(B) shows the communication format in the case of the present invention. In the figure, numeral 1 represents a training signal section, 2 represents a data section, and 3 represents a turn-off section. In addition, 5CRZ represents scramble Z, which is the original information written in the turn-off part, and 3-1 in Figure 2 represents the scramble 2 description part,
3-2 represents an address description section of the slave station, and 3-3 represents other information description section regarding the slave station.

In the case of the present invention, as shown in FIG. 1(B).

Scramble 2, which is original information, the address of the slave station, and other information regarding the slave station are written on the turn-off section.

[Effect]

Conventionally, when transmitting data, as shown in Figure 1 (A),
A training signal is sent out to perform automatic equalization of the line, etc., and then the data to be transmitted is transmitted, and then the turn-off section, which has the role of protecting the data, is scrambled.
For example, it is designed to send out about 20 m5.

In the case of the present invention, a scramble Z of about 14 mS, for example, is written in the turn-off section.

Write the address about 1mS and other information about 5m5. When receiving the data from the slave station, the master station detects the signal quality at the time of the communication, and identifies the slave station that is the communication source based on the address written in the turn-off section.

That is, each time communication is performed with each slave station, the line state is monitored for each slave station, and the monitoring results are held.

〔Example〕

FIG. 2 shows the configuration of an embodiment of the present invention. Numerals 1 to 3 in the figure correspond to those in FIG.
is a multi-point system line, 9 is a signal quality detection unit, 1
0 represents an address detection section.

The signal quality detection section 9 may be of a conventionally known type, for example, one that checks the state of the impulse response and examines the eye deterioration rate.

For example, when communication station 7 transmits data to communication station 4, which is the master station, in communication station 4, signal quality detection unit 9
The signal quality is detected by , and the address written in the turn-off unit 3 identifies that the communication is from the communication station 7 . Then, the signal quality in this case is maintained for two communication stations together with, for example, time information.

〔Effect of the invention〕

As explained above, according to the nine inventions, as appropriate.

Since the line status can be monitored, it is possible to reduce system down time even in the event of an abnormality.

[Brief explanation of drawings]

FIG. 1 shows the principle configuration of the present invention, and FIG. 2 shows the configuration of an embodiment of the present invention. In the figure, ■ is the training signal part, and 2 is the data part. 3 is a turn-off part, 3-1 is a scramble Z description part, 3
-2 is address description part, 3-3 is other information description part,
4 to 7 represent communication stations, 9 represents a signal quality detection section, and 10 represents an address detection section.

Claims (1)

[Claims] A plurality of communication stations (4) to (7) are connected in a multi-point system, and at the time of data transmission, a training signal, transmission data, and a turn-off for protecting the transmission data are combined. In the data transmission system, the communication stations (5) to (7) transmit original information (S) on the turn-off issued by themselves (S
At least one of the communication stations (4) includes a signal quality detection unit (9) that detects the signal quality of transmitted data. ) and the communication station (5) that issued the data detected by the signal quality detection unit (9).
to (7) from the information on the turn-off, and the communication station (
4) to (7) A monitor processing method characterized in that when mutual communication is performed, the signal quality of the communication is detected.