JPS58146196A - Remote supervisory system - Google Patents

Abstract

PURPOSE:To reduce the callout period to a station to be monitored, by performing the processing of response information from the station to be monitored called from a supervisory station after the callout to the next station to be monitored. CONSTITUTION:When response information (n-2)'' from a station (n-2) to be monitored is received, a monitor station M produces a callout signal (n-1)' to the next station (n-1) to be monitored, performs the response information (n-2)'' until the response information (n-1)'' is obtained, and after the end of processing, the reception of the response information (n-1)'' is awaited. In receiving the response information (n-1)'', a call signal n' is transmitted to the next station (n) to be monitored immediately, and the response information (n-1)'' is processed until the response information n'' is received. The station to be monitored is called through the reception.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote monitoring system in which one monitoring station sequentially calls a plurality of other monitored stations and collects response information.

Conventionally, in this type of remote viewing system, 1. As shown in FIG. 1, one monitoring station M has two or more monitored stations 1.2.・
...For n, call signals 1/, 2/.

・・・・・・Sends n', response information 1", 2",...
The monitoring station M sends a calling signal (n-1)' to the monitored station (fl-1), It waits for the response information (n-1), and when it receives the response information (n-1), it processes it, and after completing the process, it sends a calling signal n' to the next monitored station n. As a result, the cycle T1 for calling the monitored station is to transmit a calling signal and
This is the sum of the time T2 required to obtain response information from the monitored station and the time T3 required to process the response information (Tz+Ts).

For this reason, as the number of monitored stations increases, the calling period for the same monitored station (nT1=n(Tz+Ts
)) is long, and the time it takes from when information is generated at the monitored station until it is transferred to the monitoring station and recognized () has the disadvantage that it is not possible to collect detailed table information in terms of time. had.

The present invention solves the drawbacks of this conventional method.Ninthly, the present invention processes response information from a monitored station called by a monitoring station. This provides a complete remote monitoring system that enables shortening of time.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows an example of an operation procedure (in the case of T2>T3) according to the remote monitoring method of the present invention, and this operation procedure will be explained below.

One monitoring station M receives the response information (n-2) from the monitored station (n-2), and if it receives response information (n-2) from the monitored station (n-2), it transmits the response information to the next monitored station (In-2).
1), and until the response information (n-1) is obtained, the response information (n-2) is processed, After the processing is completed, the state waits for the response information (n-1) to be received. When all of the response information (n-1) has been received, the message is immediately sent to the next monitored station n. Sending a calling signal n'lr,
Until the response information nJ/ is received, the response information (n-1) is processed.

By repeating this process, the period T1' for calling the monitored station is determined by the time required to process response information from the monitored station and the time required to send all the calling signals to the next monitored station to be called. Since the call signal is erased by the call signal, it becomes equal to the time T2 during which the call signal is sent.

As a result, when the remote monitoring procedure of the present invention is used in the system shown in FIG. 1, the calling cycle for the same monitored station becomes nT1'=nTg.

As explained above, in the system shown in FIG. 1, when the procedure of the remote monitoring method of the present invention is used, compared to the case where the procedure of the conventional remote monitoring method is used, the system of FIG. The processing speed of the system is increased by making repeated calls, making it possible to collect more detailed information in terms of time.

[Brief explanation of the drawing]

ji! Figure 1 is an explanatory diagram of a remote monitoring system in which one monitoring station sequentially calls multiple monitored stations and collects information on the monitored stations, and Figure 2 is an explanatory diagram of the operating procedure of the conventional remote monitoring system.
FIG. 3 is an explanatory diagram of the operating procedure of an embodiment of the remote monitoring system of the present invention. 1.2.・・・・・・n-2, n-1, n, ・・・・・・
・Monitored station, 1'#2'#"""(nz)'
#("-i)'tn/,...calling signal, 1", 2",...(n-2)"# ("'
-1) "#"#...Response information, M...
・Monitoring station, T1...Conventional remote monitoring method method 1
11-Period of calling the monitored station when used %Tt'・
...Period of calling the monitored station when using the procedure of the remote monitoring system of the present invention Tg... Time for sending out a calling signal % T3... Response The time it takes to process information. 1st close

Claims (1)

[Claims] In a remote monitoring method in which one monitoring station sequentially calls multiple monitored stations connected via a data line and collects information on the monitored stations, when receiving response information from the called monitored stations, , a remote monitoring system characterized in that all calling signals are immediately sent to the next monitored station to be called, and then the received response information is processed (11).