JPS6016093A - Remote monitoring control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote monitoring and control device using a 2:N system in which a number of slave stations are monitored and controlled by one master station, and in particular to a data collection method thereof.

FIG. 1 is a block diagram showing an example of a conventional remote monitoring and control device. In the figure, (1) is the master station device, (10)
, (20)...(80) is the slave station device, (1υ,
(21J...(81) is the data output device of each slave station device, (12), (22)... (82) is the data transmitter/receiver, (13), (23)... (83) is a modem, (14), (24)...(84) is between each slave station device (10), (20)...(80) and the master station device (1) transmission line, (90) is a line switch,
(91) is the No. 1 system signal line, (92) is the No. 2 system signal line, (93) is the No. 1 system modem, (94) is the No. 2 system modem, (95) is the No. 1 system data transceiver, (96) is No. 2 system data transmitter/receiver, (97
) is a data output device, (98) is a data human power device, (99)
is a device control signal for specifying a slave station to be controlled to this data input device (98), (100) is a controlled slave station discriminator,
(101) is the control slave station selection signal, (102) is the line controller, and (103) is the line switcher (9) from this line η controller.
(104) is the same < NO2 system line connection signal, (
105) is the Nol system data collection completion signal, (106,
) is the No. 2 system data collection completion signal.

In the remote monitoring and control device configured as described above,
Slave station device 10) Here, the data to be transmitted to the master station device (1) is inputted to the data output device 1, converted to a serial code by the data transmitter/receiver 0, and then sent to the modulator. (13) After frequency (text modulation), transmission path 0 →
The data is constantly cyclically transmitted to the parent station equipment via the . The operations in the slave station devices id((20) to (80) are also similar to the above operations in the slave station device(l(ri).

The master station device (1) sequentially switches and collects data arriving from the valve station devices (10) to (80) using a line switch (90). The Nol system modulator/demodulator (93) demodulates the signal coming from the Nol system signal line (91), converts it from serial to parallel using the NO1 system handset (95), and then sends it to the data output device (9
7) Output to the outside via. No. 2 system No.
2-system signal line (92), No. 2-system modem (94)
, No. 2 system data transmitter/receiver (96) also operates in the same way as the No. 1 system, but always collects data from slave stations different from the No. 1 system. The line controller (102) determines which slave station data is collected by the Nol system and the NO2 system, respectively.

We will explain the operation of the line controller (9η) when the slave station devices (10) to (80) are not controlled from the master station device (1).If we assume that the number of gold stations is 8, then μ Responsible for data collection of slave stations (10), (30)...(70), and in No. 2 system, slave station device (2C1)
, (40 ru・(80)) Responsible for data collection.

Figure 2 is a time chart showing an example of data collection; Figure 2 (a) is a time chart for the Nol system;
b) shows the time chart of the No. 2 system. In the figure, (D,), (O2)...(I)8) indicate data of the slave station device (IOL(20)...(80)), and (TI), (T2)... ...(T8) is the data collection time of each station.) (T8) is the line switching time at slave station device (1 (1) when data collection for 1 (υ) is finished and data collection for the next station is started. is the same among all slave stations. (Tn) is the time required to collect all data of all slave stations.As can be seen from Figure 2, the line controller (102) Line connection signal (103)
Transmission line (14) k Nol system signal line (91
) to the Nol system modulator/demodulator (93) to collect data from the slave station device (10). When all data collection of the slave station device (10) is completed, a Nol system data collection completion signal (105) is generated. Upon receiving this signal, the line controller (1,02) receives the NOI system line connection signal (103) to connect the transmission line of the next slave station to the Nol system signal line (91).
) to the line switch (90). Similarly, the slave station device (
70) is completed, the sarcophagus station device (10) is completed.
) to collect data. On the other hand, the master station device (11ONo
In the 2 system as well, the slave station device (20
), (4th...(80) Collect data sequentially.

Next, the operation of the line controller (102) when the master station device (1) controls the slave station device (1o) will be explained.

Figure 3 is a time chart of data collection when the slave station device (10) is controlled 17, Figure 3 (a) is the time chart for all terminal stations in the NOI system, and Figure 3 (b) is the time chart for the No. 2 system. It shows the chart. In the figure, (D,, data of lU slave station device (10), (1)), (D)...
(O8) is the data of the three slave station devices (20), (,30), . . . (80), and TCl is the time required to collect the data of all the slave stations. As is clear from Figure 3, the data human power generator (9
8) receives the equipment control signal (99) of the slave station device ('') and outputs this signal to the Nol system system data transmitter/receiver 5) and the control slave station discriminator (100).The control slave station discriminator (
100) transmits the control slave station selection signal (101) to the line controller (
102). The line controller (102) receives the N01 system line connection signal (103) while this signal is arriving.
) to connect the transmission line (]4) to the Nol system signal line (91)
It is connected to the Nol system modulator/demodulator (93) via the Nol system modulator/demodulator (93), continuously collects data from the slave station device (10), and sends equipment control signals to the Kaneko station device (10).

On the other hand, the line controller (102) sends a No. 2 system line connection signal (
104), the transmission line (24) is connected to the No. 2 system signal line (
92) to the No. 2 system modem (94),
Annually collect the data of the slave station device (20). Slave station device (20
), a No. 2 system data collection completion signal (106) is generated. Line controller (102)
receives this signal and connects the transmission path (34) of the next slave station to N.
A No. 2 system line connection signal (104) to be connected to the O2 system signal line (92) is sent to the line switch (90).

Thereafter, when the data collection of the slave station device (80) is completed, the data of the slave station device (20) is collected again.

As mentioned above, the line controller (102) equipment control signal (
99) is input to the data input device (98), the transmission line (1) is connected to the Nol system signal line (91), and the other transmission line (24), (34)...(84) sequentially performs the operation of connecting to the No. 2 system signal line (92).

Therefore, all data of the slave station device (10) under control is collected every 10 hours in the Nol system, and the remaining slave station device (20).

All data (30)...(80) are collected every 2'pci hours.

Since the conventional remote monitoring device was configured as described above, the data collection cycle of the slave stations other than the slave station being controlled was uniform.

However, there was often a request to quickly collect data on a specific slave station related to the slave station that is being controlled among other slave stations other than the slave station that is being controlled. This invention was made in order to eliminate the above-mentioned drawback of the conventional device, which had the disadvantage of not being able to collect An object of the present invention is to obtain a remote monitoring and control device that can shorten the data collection cycle of a specific slave station related to the slave station being controlled among other slave stations.

FIG. 4 is a block diagram showing an embodiment of the present invention, and in the figure, +11, (10) to (14),
(20)-(24)...(80)-(84),
(90) to (,99) and (103) to (106) indicate the same or equivalent parts as the same reference numerals in FIG.

In the figure, (120) receives the device control signal (99) via the data input device (98), and receives the control slave station selection signal (120).
21) and a control specific slave station discriminator (123) which outputs a specific slave station selection signal (122).
21) and a specific slave station selection signal (122) to control the line switch (90).

In the remote monitoring and control device configured as described above,
Control specific slave station discriminator (120) and line controller (123)
) and each part of the master station device (1) and each slave station device (10)
The operations from (80) to (80) are similar to those of the conventional device shown in FIG.

If the slave station device (10) is currently being controlled, the slave station device (
20) The operation of quickly collecting data will be explained.

FIG. 5 shows the slave station device (2) related to the control of the slave station device (10).
5(a) shows the time chart for the No. 1 system, and FIG. 5(b) shows the time chart for the No. 2 system.

FIG. 5 (As is clear from al., the slave station device under control (10
) is the same as the conventional device shown in FIG.

The control specific slave station discriminator (120) uses the device control signal (99)
is received via the data input device (98), and a control slave station selection signal (121) is used to inform that the slave station to be controlled is a slave station tray, and a specific slave station selection signal (122) is used to specify the slave station. Communicate the need for prompt collection of slave station data. The line controller that received the control slave station selection signal (121)k (
123) instructs the line switching device (90) to connect the Nol system modem (93) to the slave station device (10) by the Nol system line connection signal (103), and the subsequent operation is the conventional one shown in Fig. 1. It is similar to the device.

Next, the line controller (
The slave station device (20
) to collect data. When all the data collection of the slave station device (20) is completed, the No. 2 system data collection completion signal (10
6) occurs. The line controller (123,) receives this signal and connects the transmission line (34) kN of the next slave station device (30).
A No. 2 system line connection signal (104,) is sent to the line switch (90) so as to connect to the o2 system signal line (92).

Similarly, each time the No. 2 data collection completion signal (106) is generated, data collection for the next slave station device is performed.
While the specific slave station selection signal (122) is arriving, data collection of the specific slave station, that is, the slave station device (20) is performed before data collection of the slave station device (50) and slave station device (70). The line controller (123) issues a command to perform this.

As described above, the control specific slave station discriminator (122) stores in advance the specific slave station base corresponding to the slave station user of the equipment control signal (99), thereby determining the specific slave station selection signal (122). Send. A line controller (123) U that received this signal;
While the specific slave station selection signal (122) is arriving, No.2
A complete instruction to collect a large number of data of a specific slave station device by setting how many times to collect all data of a specific slave station device stored in advance within the time period for collecting all data of all slave station devices in the system. do. As a result, it is possible to collect a large amount of data from a specific slave station device faster than from slave station devices other than the slave station device being controlled.

In addition, in the above embodiment, the data of the slave station device under control is
Although the case has been described in which the data of the other slave stations is collected using the No. 1 system and the data of other slave stations are collected using the No. 2 system, the same effect can be obtained even when this system is reversed.

? It goes without saying that the same effect can be achieved even if a plurality of specific slave stations are used.

As explained above, the present invention provides a control specific slave station discriminator and a line control device having the function of specifying an fc specific slave station in relation to a control station and collecting more data of this specific slave station than other slave stations. This has the effect that more data can be collected from a specific slave station device in a shorter time than from other slave station devices other than the slave station being controlled.

[Brief explanation of drawings]

Fig. 1 is a block wiring diagram showing an example of a conventional remote monitoring control device, Fig. 2 is a time chart showing an example of data collection by the device in Fig. 1, and Fig. 3 is a slave station control of the device in Fig. 1. 4 is a block diagram showing one embodiment of the present invention, and FIG.
3 is a time chart showing an example of data collection during slave station control of the device shown in the figure. In the figure, (1) is the master station device, (10), (20)
~(80) u slave station device, (90) is line switch, (93
) is Nol system modem/demodulator, (94) is No2 system modem/demodulator, (95) fl Not system data transmitter/receiver, (9
6) is the No. 2 system data transmitter/receiver, (120) is the control specific slave station discriminator, (121) is the control station selection (No. g,
2) is a specific slave station selection signal, and (123) is a line controller. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Masuo Oiwa

Claims (1)

[Claims] In order to transmit and receive data between the master station and multiple slave stations, there are two systems of data transmitting and receiving sections that are installed in the master station device and can operate at all times, and each of these two systems of data transmitting and receiving sections receives data from the slave stations. In a 2:N remote monitoring and control device equipped with a line switching device for sequentially switching and connecting a slave station, when remotely monitoring and controlling a slave station, a control slave station that specifies the slave station to be controlled from among the slave stations of the number of phases is used. A control specific slave station discriminator that outputs a selection signal and a specific slave station selection signal that specifies a specific slave station whose data collection period needs to be shortened in relation to the above-mentioned controlled slave station, and a control specific slave station discriminator that outputs a specific slave station selection signal that specifies a specific slave station whose data collection cycle needs to be shortened in relation to the above-mentioned controlled slave station, and a control specific slave station discriminator that outputs a specific slave station selection signal that specifies a specific slave station whose data collection cycle needs to be shortened in relation to the above-mentioned controlled slave station, and a control specific slave station discriminator that outputs a specific slave station selection signal that specifies a specific slave station whose data collection cycle needs to be shortened in relation to the above-mentioned controlled slave station. Sends a signal instructing each of the two data transmitting/receiving units to connect cyclically to the line switching device, and receives the control slave station selection signal and the specific slave station selection signal from the control specific slave station discriminator. In this case, the data transmitting/receiving unit of the first system is connected so as to be used only for data transmission/receiving with the control slave station, and the data transmitting/receiving unit of the second system is connected in advance to determine a collection cycle for data of the specific slave station. A remote station characterized in that it is equipped with a line controller that sends an instruction to a line switch to connect to collect data of other slave stations periodically and to collect data of other slave stations cyclically at times other than the data collection time of the specific slave station. Supervisory control equipment.