JPH0213240A - Controller/monitor for distribution machinery - Google Patents

Abstract

PURPOSE:To perform control without requiring a central controller/monitor or full knowledge of operational sequence or prohibition items by producing a control command from each terminal controller/monitor and transmitting the control command to another terminal controller/monitor thereby filling the role of a central controller/monitor. CONSTITUTION:An input section 3e in a terminal controller/monitor 3A detects the open/close state of the alarm contact of an earth leakage breaker (not shown) and provides open/close data to a monitor information producing section 3f. The monitor information producing section 3f produces monitor information based on the operational sequence of the earth leakage breaker stored in an operational sequence memory section 3s and the alarm open/close data. Furthermore, the monitor information producing section 3f produces a command word representing a 'report command' which is passed, together with the monitor information, to a transmitting/receiving section 3a through a report command producing section 3g and a code producing section 3i. The transmitting/receiving section 3a adds the self address set in a self address setting section 3j to the command word thus producing a transmission signal and interrupting a terminal controller/monitor 30.

Description

[Detailed Description of the Invention] [Industrial Application Fields] This invention is applicable to, for example, protective devices such as earth leakage circuit breakers and no-fuse circuit breakers, control devices such as electromagnetic switches and remote control devices, transducers, watt-hour meters, etc. The present invention relates to a power distribution equipment control and monitoring device that can easily configure a power distribution equipment control and monitoring system in which individual control and monitoring information of a wide variety of power distribution equipment, such as instrumentation equipment, is networked.

In particular, the present invention relates to a power distribution equipment control and monitoring device that eliminates the need for a central control and monitoring device.

[Conventional technology] The configuration of a conventional example will be explained with reference to FIG. 14.

FIG. 14 is a block diagram showing a conventional power distribution equipment control and monitoring device disclosed in, for example, Japanese Patent Publication No. 59-29998.

In Fig. 14, (1) is a central control and monitoring device, (2)
are the two signal transmission lines connected to this central control monitoring bag W (1), and (3,), ..., (3n) are terminal control and monitoring devices connected to the signal transmission line (2), respectively. It is.

Also, (5) is a commercial power source, and (6) is this commercial power source (5)
Two power wires connected to, ()+a), (71b>
,..., (7na), (7nb) are control contacts connected to one power line (6), (4+a), (4
+b), ..., (4na), (4nb) each have one input terminal connected to the other power supply line (6), and the other input terminal connected to the control contacts (71a) to (7nb). This is a heavy load.

Next, the operation of the conventional example described above will be explained in FIGS. 15(a) and 15(b).
) and (e). Figure 15(a)
-(c) are time charts showing signal waveforms of various parts in the conventional example.

In FIG. 15, (a) shows a transmission signal, Pl is a start pulse indicating the start of transmission, and P2 is a terminal control and monitoring device (
The terminal address pulse, P, indicating the addresses of 3.) to (3n) is the terminal control and monitoring device. ) to (3n) are control pulses showing control. (b) is the address match signal, (
c) shows a latch signal.

First, control contacts (71a) to (7nb) are connected to rONJl,
When operating the loads ('tea) to (4nb), the central control and monitoring device (1) connects the terminal control and monitoring devices (31) to (3n) via the signal transmission line (2) to a)
Send a transmission signal as shown in .

The terminal control and monitoring devices (3,) to (3n) compare the terminal address in the transmission signal with their own terminal address, and when they match, send an address matching signal as shown in FIG. 15(b). occurs.

At the same time, as shown in Fig. 15(c), a latch signal is output to the control contacts (7, a) to (7nb) to turn the control contacts (7+a) to (7nb) into "○N" and the load is (4
Operate Ia) to (4nb).

In this way, the central control monitoring bag W(1) controls the terminal control monitoring devices (31) to (3) that perform control operations based on control commands.
n), one of the power distribution devices, a control contact (7+
a) ~ (7nb) as “○NJ+,”

The central control monitoring device (1) also includes terminal control monitoring devices (3,) to (3n) that perform monitoring operations based on monitoring commands.
Power distribution equipment (not shown) is monitored via the

[Problems to be Solved by the Invention] The conventional power distribution equipment control and monitoring device as described above has the following problems.

Even when building a small system, a central control and monitoring device was required, making the system as a whole expensive and requiring a large amount of installation space.

(b) When preparing the monitoring procedure for the central control and monitoring equipment, it is necessary to
I had to be familiar with a vast and complicated list of operating procedures and prohibitions.

(1) Since the minimum unit of control/monitoring consists of contact inputs, relay contact outputs, etc., the central control/monitoring device provides control/monitoring commands using algorithms that follow control/monitoring procedures specific to each networked power distribution device. Therefore, the number of control/monitoring procedures within the central control/monitoring device becomes enormous, which increases the processing time to complete one control/monitoring command, and makes the use of signal transmission lines extremely inefficient. It was bad.

(1) It was not possible to control and monitor various power distribution devices using one type of terminal control and monitoring device.

This invention was made to solve the above-mentioned problems, and it eliminates the need for a central control and monitoring device, eliminates the need for familiarity with operating procedures and prohibitions for controlling and monitoring various power distribution equipment, and is simple and simple. The objective is to obtain a power distribution equipment control and monitoring device that can perform faster control and monitoring.

A further object of the present invention is to obtain a power distribution equipment control and monitoring device that can control and monitor various power distribution equipment using one type of terminal control and monitoring device.

[Means for Solving the Problems] A power distribution equipment control and monitoring device according to the present invention has the configuration described below.

(I) A first terminal control and monitoring device having the following configuration.

As a transmission system, (i) an input unit that detects the operating state of connected power distribution equipment and generates a detection signal;

(ii) A monitoring information generation unit that generates monitoring information or a response command based on the detection signal.

11) A control command generation unit that generates a control command based on the monitoring information.

(iv) a code generation unit that converts the code of the control command or response command;

(V) A transmitter that transmits a transmission signal including the code-converted control command or response command.

As a receiving system, (vi) a receiving unit that receives the transmission signal;

(-ii) a code decoding unit that decodes the transmitted signal as the code of the control command or response command;

(Amazing) A procedure input storage unit capable of storing an operation procedure for operating the power distribution device transmitted from an external transmitting device.

(ix) A control signal generation unit that generates a control signal based on the operation procedure and the control command or response command.

(x), a drive output section that outputs a drive signal for driving the four devices in the arrangement based on the control signal;

(■), a second terminal control and monitoring device having the same configuration as the first terminal control and monitoring device;

Further, the power distribution equipment control and monitoring device according to the present invention has the configuration described below.

(I) A first terminal control and monitoring device having the following configuration.

As a transmission system, (i) an input unit that detects the operating state of connected power distribution equipment and generates a detection signal;

(ii) A monitoring information generation unit that generates monitoring information or a response command based on the detection signal.

(iii) A monitoring command generation unit that generates a monitoring command based on the monitoring information.

(iv) a code generation unit that converts the code of the monitoring command or response command;

(V>, a transmitter that transmits a transmission signal containing the code-converted control command or response command;

As a receiving system, (vi) a receiving unit that receives the transmission signal;

(vii) a code decoding unit that decodes the transmitted signal as the code of the control command or response command;

(vii) - A procedure input storage unit capable of storing an operation procedure for operating the power distribution device transmitted from an external transmitting device.

(ix) a control signal generation unit that generates a control signal based on the operation procedure and the response command;

(X) A drive output unit that outputs a drive signal for driving the power distribution equipment based on the control signal.

(II) A second terminal control and monitoring device having the same configuration as the first terminal control and monitoring device.

Furthermore, the power distribution equipment control and monitoring device according to the present invention has the following configuration.

(I) A first terminal control and monitoring device having the following configuration.

As a transmission system, (i) an input unit that detects changes in the status of connected power distribution equipment and generates a detection signal;

(ii) A procedure input storage unit capable of storing an operation procedure for generating monitoring information of the power distribution equipment transmitted from an external transmitting device.

(iii) a monitoring information generation unit that generates monitoring information based on the operation procedure and the detection signal;

(ii) A reporting command generation unit that generates a reporting command based on the monitoring information.

(V) A code generation unit that converts the code of the notification command.

(vi) A transmitter that transmits a transmission signal including the code-converted reporting command.

As a receiving system, (vii) A receiving unit that receives the transmission signal.

(vii) a code decoding unit that decodes the transmitted signal to be the code of the notification command;

(iii> The monitoring information generation unit that determines the next operation based on the notification signal.

(■), a second terminal control and monitoring device having the same configuration as the first terminal control and monitoring device;

[Operation] In the present invention, each terminal control and monitoring device generates control commands, etc. by itself based on information such as state changes including abnormalities of its own station, and transmits control commands to predetermined other terminal control and monitoring devices. Until a response command is returned (or until the command is completed), the local station functions as a central control and monitoring device.

In addition, when each terminal control and monitoring device receives a control command etc. from a predetermined other terminal control and monitoring device, it regards the other terminal control and monitoring device on the transmitting side as the central control and monitoring device, and the own terminal It serves as a control and monitoring device.

[Example code] The configuration of the embodiment will be explained with reference to FIG.

FIG. 1 is a block diagram showing an embodiment of the present invention, and item (2) is completely the same as that of the conventional device described above.

In FIG. 1, (30) is a first terminal control and monitoring device, and in this embodiment, (30a), (30b), (3
0c), (30d), -(30e), (30F), (3
0g), (30h), (30i), (30j), (3
0k), (30m), (30n), and (30s).

Further, (3^) is a second terminal control and monitoring device, and in this embodiment, (3a), (3b), (3C), and (3d)
, (3C), (3r), (3g), (3h), (
31), (3j), (3k), (3 theory), (3n
) and (3s).

(30a) is a transmitting unit and a receiving unit, (30h) is a control command generating unit and a monitoring command generating unit, and in this embodiment,
(30a) is a transmitting/receiving section connected to the signal transmission line (2), (30b) is a code decoding section connected to this transmitting/receiving section (30a), and (30c) is this code decoding section (30b). The control signal generation section (30cl) connected to the control signal generation section (30c) is the drive output section (30e) connected to the control signal generation section (30c).
) is an input connected to this drive output <30d), (
30f) is a code decoding unit (3Qb) and an input unit (30e)
The monitoring information generation unit (30g) connected to the monitoring information generation unit (30f) is the reporting command generation unit (30g) connected to the monitoring information generation unit (30f).
0h) is the control/control unit connected to the monitoring information generation unit (30f).
The monitoring command generation unit (30i) has an input side connected to the monitoring information generation unit (30f), a notification command generation unit (30g), and a control/monitoring command generation unit (30h), and an output side connected to the transmission/reception unit (30a). The connected code generation unit (30j) is a self-address setting unit connected to the transmitting/receiving unit (30a),
(30k) is the destination address setting section connected to the transmitting/receiving section (30a), (30m) is the control signal generating section <30c)
and an information processing section connected to the monitoring information generation section (30f), and (3On) is a display section connected to this information processing section (30m). Note that the control signal generation section (30c) is also connected to the monitoring information generation section (30f).

In addition, (30s) is an operation procedure in which the input side is connected to the transmitting/receiving section (30m), and the output side is connected to the control signal generation section (30e), the monitoring information generation section (30f), and the display section (3On). This is the storage section.

Terminal control monitoring bag! (3^) is the same as the configuration of the terminal control and monitoring device (30) described above, and each code (3a) to (3
s) corresponds to each code (30a) to (30s). Note that the drive output section (30d) is an output terminal (30d, )
, (30d,), (30d3) and (30d,), and the input section (30e) has input terminals (30e l) and (30d,).
0ez), and the drive output section (3d) has an output terminal (3d
, ) and (3d2), and the input section (3e) has input terminals (3e, ), (3e2) and (3ez).

Next, the configuration of the power distribution equipment will be explained with reference to FIGS. 2 and 3. FIG. 2 is a block diagram showing power distribution equipment connected to an embodiment of the present invention, FIG. 3 is a circuit diagram showing a part of FIG. It is exactly the same as the one.

In Figure 2, (40) is the terminal control and monitoring device (30)
It is an electrical mechanical device for control and monitoring connected to the output terminals (3(M,), (30d) of the terminal control and monitoring device (30).
2), (30ci3) and (30d,) and the ON10 connected to the input terminals (30el) and (30e2)
F F indicator light (40a), overcurrent/short circuit trip indicator light (40b), earth leakage trip indicator light (40c), abnormality indicator light (40d), ON operation switch (40e), and O
An FF operation switch (40f) is provided.

(4^) is the load, (7^) is the commercial power supply (5) and the load (4
It is an earth leakage breaker connected between the power line (6
) connected to the commercial power supply (5) via the power terminal (7a
), the load terminal (7c) connected to the load (4^) via the power line (6), the T4 source terminal (7a) and the load terminal (7c
) The main circuit (7g) connected between this main circuit (7g)
g) The switchgear (7b) inserted in the overcurrent enclosure connected to the main circuit (7g)! (7d), main circuit (7g)
ZCT (7e) connected to this Z CT (7e)
installed in the earth leakage disconnection device (7r) and overcurrent disconnection device (7d) connected to the terminal control and monitoring device (3^>
alarm contact AL connected to the input terminal (3e+) of An auxiliary contact AX is provided which is interlocked with the switching device (7b) and connected to the input terminal (3e3) of the terminal control and monitoring device (3^).

(8) is an electrical operating device coupled to the a1 circuit breaker (7^) and connected to the terminal control and monitoring device (3^).

In Fig. 3, the electrical operation device (8) includes diode bridge circuits (8a) and (8C) including a surge absorption varistor, an ON operation coil (8b) connected to the diode bridge circuit (8a), and a diode. OFF operation coil (8d), terminals (8e,), (8et), (8e-) and (8e,) connected to the bridge circuit (8c)
Operation connection terminal (8e), terminal (8e,) provided with
diode bridge circuits (8a) and (8c) through
The operating power terminal (8h) connected to one end of the
ON operation switch (8f) and terminal (8e4) connected to the other end of the diode bridge circuit (8a) via
) is connected to the other end of the diode bridge circuit (8c), and the operation power terminal (81) is connected to the ON operation switch (8f) and the OFF operation switch (8g). It is provided.

Note that the terminal (8e+) is grounded.

Furthermore, the configuration of the power distribution equipment control and monitoring system will be explained with reference to FIGS. 4 and 5. FIG. 4 is a schematic block diagram showing a networked power distribution equipment control and monitoring system according to an embodiment of the present invention, and FIG. 5 is a schematic block diagram showing another power distribution equipment control and monitoring system.

In Figure 4, load (4^), (4^,),...
(4^n) are earth leakage circuit breakers ()^) and power distribution equipment (
7^1), ... (78n), and the earth leakage breaker (
7^), electrical machinery and equipment for control and monitoring (40), power distribution equipment (7^,), electrical machinery and equipment for monitoring (401),...
・ ..., power distribution equipment (7^n), and control/monitoring electrical equipment (40n) are each connected to terminal control and monitoring equipment (3
^), (30), (3^1), (301),...
, (3^n) and (30n), and these terminal control and monitoring devices ff(3^) to (30n) are connected to each other by a signal transmission line (2). ,)
, power distribution equipment (7^,), electrical machinery and equipment for control and monitoring <4
01), terminal control and monitoring equipment! (3^l) and (301) are not shown.

In Figure 5, loads (4^,), (4^2),...
, (4^transport) are power distribution equipment ()^1) and ()^2, respectively.
), ..., (7＾-), and these power distribution equipment (
7^1) to (7^ end) are respectively terminals 1liIIflI
Monitoring device (3A+), (3^2),..., (3^-)
These terminal control and monitoring devices (3^,) to (3
The resistors are connected by a signal transmission line (2).

Further, the appearance of the terminal control and monitoring device will be explained with reference to FIG. Figure 6 shows terminal control and monitoring equipment for earth leakage circuit breakers (
3B).

In FIG. 6, (3d, ), (3c12), (3d,
) and (3d,) are output terminals, (3e,), (3ez)
, (3e,) and <3e4) are input terminals, (3jk) is a self address/destination address setting switch, (3n) is a liquid crystal display section, and (3z) is a body.

Here, the structure of the transmission signal will be explained with reference to FIG. FIG. 7 is a block diagram showing the frame structure of a transmission signal.

In FIG. 7, one frame of the transmission signal includes a self address SA, a partner address DA, a command word CW, a data count BC, data DT, and a frame check code F.
It is composed of CC.

The self address SA is the address of the terminal control and monitoring device itself that is the source, and the destination address DA is the other terminal vIm of the destination.
The address of the monitoring device and the command word CW are control commands such as "rON command" and "rOFF command",
[Monitoring command] which is a monitoring command, etc., which is a reporting command [
Types of commands such as "report command" and "response command" which are response commands, data number BC is the number of blocks of the next data DT, data DT is the data accompanying the command word CW, and frame check code FCC is the number of blocks of the entire frame. Shows the code that represents consistency.

Next, the operation of the above-mentioned embodiment will be explained using typical control commands.
The monitoring command and reporting command will be explained in order.

When starting up the system or when operating the system as necessary,
The terminal control and monitoring devices (30) and (3^) have their own address and the other party's address set by the own address setting sections (30i) and (3j) and the other party's address setting sections (30k) and (3k). , terminal control and monitoring equipment!
In (30), an appropriate address of the own station is set as the own address, and an address of the terminal control and monitoring device (3^) is set as the other party's address.

In addition, when starting up the system, the terminal control monitoring device (30)
and (3^) receives, for example, an initial command from a predetermined other terminal control/monitoring device, downloads the operation procedure (control signal generation procedure and monitoring information generation procedure) of the connected power distribution equipment, and executes the operation procedure. Storage part (30s) and (3s)
to be memorized. These procedure storage units (30g> and (3s)
The operating procedures stored in the display section (30n) and (3n
) can be confirmed.

That is, the transmitting/receiving section (30a) and <3a) receive the transmission signal on the signal transmission line (2), check the frame check code FCC, and if it is normal, the other party's address DA is set to the self address setting section. 30i) and (3
Determine whether it is the address of the own station set in step j).

If the other party's address DA is your own address, the data DT
For example, turn on the earth leakage breaker (7^), rOFFJ
The control procedure for monitoring the changes in the status of the earth leakage circuit breaker (7^) is retrieved and stored in the operation procedure storage unit (30s).
and (3s).

First, the control for rONJing the earth leakage breaker (7^), that is, the operation of the control command will be explained.

First, the transmission operation of the "rON command" and the reception operation of the "response command" on the terminal control and monitoring device (30) side are performed on the 8th U.
This will be explained with reference to :ji. FIG. 8 is a schematic operational flowchart showing the flow of operations of the "ON command" and the "response command".

In step (50), the terminal control monitoring device (30)
starts working.

In step (51), the terminal control monitoring device (30)
generates the "rON command" and sends the terminal control and monitoring device (
Send to 3^).

That is, the input section (30e) is an input terminal (30e, )
It detects rON and operation of the ON operation switch (40e) of the cap 1 monitoring electric mechanical device (40), generates a detection signal, and outputs it to the monitoring information generation section (30f).

The monitoring information generation unit (30f) generates “O” based on the detection signal.
A command word CW representing the N command J is generated and passed to the control/monitoring command generation section (30h).

The cap I monitoring command generation unit (30h) generates command word C.
Accompanying data DT and the number of data BC based on W
is generated, and the code generator (
30i).

The code generation unit (30i) converts the code of the command word CW, the number of data BC and the data DT, and sends the code to the transmission/reception unit (30i).
0m).

The transmitting/receiving unit (30a) has a self-address setting unit (30j
) and the terminal control and monitoring device (3^) set in the remote address setting section (30k>).
) and a frame check code FCC are added to form a transmission signal frame. Then, the transmission signal is placed on signal transmission &l(2>).

Further, the monitoring information generation section (30f) passes information based on the above-mentioned detection signal to the information processing section (30), and operates the information processing section (30m).

The information processing section (30m) drives the display section (30n) based on the above-mentioned information, etc., and displays the operating state of the terminal control and monitoring device (30) and the electrical mechanical appliance for control/monitoring (40). For example, display it on a liquid crystal.

In step (52), the terminal control monitoring device (30)
receives a "response command" from the terminal control and monitoring device (3^).

That is, the transmitting/receiving section (30a) is connected to the signal transmission line (2)
Receives the above transmission signal and checks its frame check code F.
Check the CC and if it is normal, the other party's address DA
It is determined whether or not it is the address of the own station set by the own address setting section (30j). If the other party's address DA is your own address, command word CW, data count BC
and passes the data DT to the code decoder (30b).

The code decoder (30b) determines whether the command word CW is a "response command". In the case of a "response command," the command word CW, data count BC, and data DT are passed to the control signal generation section (30e) to operate the control signal generation section (30c).

The control signal generation unit (30c) includes an operation procedure storage unit (30s
), the control/monitoring electrical mechanical appliance (40) is based on the operating procedure of the controlling/monitoring electrical mechanical appliance (40), the command word CW, the number of data BC, and the data DT.
The drive output section (30d) generates a control signal to operate the
For example, if the earth leakage breaker (7^) outputs 0 to
ONjl, control/monitoring electrical machinery and equipment (40)
A control signal is generated to turn on the ON10 FF indicator light (40a).

The drive output unit (30d) outputs the cap I monitoring electric mechanical device (
40) ○N10 FF Turn on the F indicator light (40m).

Further, the control signal generation section (30e) passes the above-mentioned command word C, etc. to the information processing section (30m), and operates the information processing section (30m).

The information processing section (30m) uses the above-mentioned command word C.
The display unit (30n) is driven based on the above, and the operating status of the terminal control/monitoring device (30) is displayed on, for example, a liquid crystal display.

In step (53), the terminal control monitoring device (30)
ends the operation.

Next, the operation of receiving the rON command J and the operation of transmitting the "response command" on the terminal control and monitoring device (3^) side will be explained.

In step (60), the terminal control monitoring device (3^)
starts working.

In step (61), the terminal control monitoring device (3^)
receives the "rON command" from the terminal control and monitoring device (30).

That is, the transmitter/receiver (3a) receives the transmission signal on the signal transmission line (2), and checks the frame check code FC.
C is checked, and if it is normal, it is determined whether the other party's address DA is the address of the own station set by the own address setting section (3j). If the other party's address DA is the address of the local station, the command word CW, de-minor BC and data DT are passed to the code decoder (3b).

The code decoder (3b) detects that the command word CW is “ON”.
command". In the case of "rON command," the command word CW, data count BC, and data DT are passed to the Wii control signal generation section (3c) to operate this control signal generation section (3c).

In step (62), the terminal control monitoring device (3^)
executes rON command J.

That is, the control signal generation unit (3c) generates the operating procedure of the earth leakage breaker (7^) stored in the operating procedure storage unit (3s),
Based on the command word CW, the number of data BC, and the data DT, a control signal for turning on the earth leakage breaker (7^) is generated and output to the drive output section (3d).

The drive output section (3d), via the output terminal (3d,),
The ON operation switch (8'') of the electric operation device (8) is closed by the above-mentioned control signal.

In this way, when the ON operation switch (8f) is closed, the ON operation coil (8b) is excited, and the switching device (7
b) closes. In other words, the earth leakage breaker (7^) is turned on to rON4.

The control signal generation unit (3c) also includes the above-mentioned command/
The word CW etc. are passed to the information processing section (3m) and the information processing section (3m) is operated.

The information processing unit (three wheels) uses the above-mentioned command word CW.
The display unit (3n) is driven based on the above information, and the operating status of the terminal control/monitoring device (3^) is displayed on, for example, a liquid crystal display.

In step (63), the terminal control monitoring device (3^)
generates a "response command" and sends it to the terminal control and monitoring device (
30).

That is, the monitoring information generation section (3r) is the input section (3e)
Based on the detection signal detected by the earth leakage breaker (7^), the earth leakage breaker (7^) normally determines whether the rONJj is inside. Also, a command word C representing a "response command" based on the detection signal.
W, and the data DT and the number of data BC which are the discrimination results are generated and passed to the code generation unit (31) together with the command word CW.

The code generation unit (31) converts the code of the command word CW, the number of data BC, and the data DT and passes the code to the transmission/reception unit (3a).

The transmitting/receiving unit (3a) sets the own address SA of the own station set in the own address setting unit (3j) and the other party's address which is the address of the terminal control and monitoring device (30) set in the other party address setting unit (3k). Address DA and frame check code FCC are added to configure the frame of the transmission signal.

Then, the transmission signal is placed on the signal transmission line (2).

Further, the monitoring information generation section (3f) passes information based on the above-mentioned detection signal to the information processing section (3m>), and causes the information processing section (3-) to operate.

The information processing section (3-) drives the display section (3n) based on the above-mentioned information, etc., and displays the operating state of the terminal control monitoring device W (3^) and the ON10 FF state of the earth leakage circuit breaker (7^). ,
Overcurrent/short circuit trip status, earth leakage trip status, etc. are displayed on, for example, a liquid crystal display.

In step (64), the terminal control monitoring device (3^)
ends the operation.

Here, a control procedure for turning on the earth leakage circuit breaker ()^) described above will be explained with reference to FIG. 9. FIG. 9 is a flowchart showing a control procedure for rONJing the earth leakage breaker (7^).

First, a control procedure for turning on the earth leakage breaker (7^) stored in the operation procedure storage section (3s) is passed to the control signal generation section (3c).

In step (70), if the command word CW is "rON command", the control signal generating section (3c) is started to operate by the code decoding section (3b) and proceeds to the next step (71).

In step (71), the control signal generation section (3c) is configured based on the open/closed state of the alarm contact AL of the earth leakage breaker (78) detected via the input section (3e) and the monitoring information generation section (3f). Then, it is determined whether the earth leakage breaker (7^) has tripped due to overcurrent, short circuit, or leakage. If it has not tripped (NO), proceed to the next step (72
), or if tripped (YES), proceed to step (75).

In step ()2), the control signal generation unit (3C) outputs the output voltage of the electric operating device (8) via the drive output unit (3d).
After opening the N operation switch (8r) for a predetermined period of time, proceed to the next step (73).

In step (73), the control signal generation section (3C) generates a signal based on the open/closed state of the auxiliary contact AX of the earth leakage breaker (7^) detected via the input section (3e) and the monitoring information generation section (3r). Then, determine whether the earth leakage breaker (7^) is turned on. rON” I, if yes (YES
) proceeds to the next step (74), and rONJl
, if not (No), proceed to step (77).

In step (74), the control signal generation section (3C) ends its operation.

In step (75), the control signal generation unit (3C) resets (OFFA) the alarm contact AL in order to release the trip state of the earth leakage breaker (7^), and proceeds to the next step (7th day). .

In step (76), the control signal generation unit (3c) determines whether the alarm contact AL of the earth leakage breaker (7^) has been reset. If it has been reset (YES
) returns to step (72). If the reset has not been performed (NO), the process proceeds to the next step (77).

In step (77), errors such as overcurrent and short circuit trip are handled, and the process returns to step (a4).

Second, the control to turn off the earth leakage breaker (7^), that is, the operation of other control commands will be explained. In addition, rO
Since this corresponds to the operation of "N command", a detailed explanation will be omitted.

First, when the OFF operation switch (40f) of the control/monitoring electrical equipment (40) is pressed, the terminal control/monitoring device (30) generates a "ro F F command" and sends the terminal control/monitoring device 3 Send to ^).

On the other hand, the terminal control and monitoring device (3^) receives and executes the ro FF command.

That is, the control signal generation unit (3c) generates the operating procedure of the earth leakage breaker (7^) stored in the operating procedure storage unit (3s),
Based on the command word CW, data count BC, and data DT, a control signal for turning off the earth leakage breaker (7^) is generated and output to the drive output section (3d).

The drive output section (3d) turns off the electric operating device (8) by the above-mentioned control signal via the output terminal (3clt).
Close the operation switch (8g).

In this way, when the OFF operation switch (8g) is closed, the OFF operation coil (8d) is excited, and the switchgear (7b) is opened, that is, the earth leakage breaker (7^) is set to "0FF".
I will be doing J.

Thereafter, the terminal control and monitoring device (3^) generates a "response command" and transmits it to the terminal control and monitoring device (30).

Then, the terminal control and monitoring device (30) receives the "response command" and ends its operation.

Here, a control procedure for turning off the earth leakage breaker (7^) described above will be explained with reference to FIG. 10.

FIG. 10 is a flowchart showing a control procedure for causing the earth leakage breaker (7^) to rOFPJ.

First, a control procedure for turning off the earth leakage breaker (7^) stored in the operation procedure storage section (3s) is passed to the control signal generation section (3c).

In step (80), if the command word CW is "rOFF command", the control signal generation unit (3C)
The code decoder (3b) starts the operation and proceeds to the next step (81).

In step (81), the control signal generation unit (3c) is configured based on the open/closed state of the alarm contact AL of the earth leakage breaker (7^) detected via the input unit (3e) and the monitoring information generation unit (3f). Then, it is determined whether the earth leakage breaker (7^) has tripped due to overcurrent, short circuit, or leakage. If it has not tripped (NO), proceed to the next step (82
), or if tripped (YES), proceed to step (85).

In step (82), the control signal generation unit (3C) controls the electrical operation device (8) via the drive output unit (3d).
After opening the FF operation switch (8g) for a predetermined period of time, proceed to the next step (83).

In step (83), the control signal generation unit (3C) changes the opening/closing state 1 of the auxiliary contact AX of the earth leakage breaker (7^) detected via the input unit (3e) and the monitoring information generation unit (3f). Based on this, determine whether the earth leakage breaker (7^) is ``○FFJ.'' If rOFF, + (Y
ES) proceeds to the next step (84), and also ``OF
If not (NO), proceed to step (87).

In step (84), the control signal generation section (3C) ends its operation.

In step (85), the control signal generation unit (3C) resets (turns OFF) the alarm contact AL in order to release the trip state of the earth leakage breaker (7^), and proceeds to the next step (86). .

In step (86), the control signal generation unit (3C) determines whether the alarm contact AL of the earth leakage breaker (7^) has been reset. If it has been reset (YES
) returns to step (82). If the reset has not been performed (No), the process proceeds to the next step (87).

In step (87), errors such as overcurrent and short circuit trip are handled, and the process returns to step (84).

Thirdly, the operation of monitoring the operating state of the earth leakage breaker (78), that is, the operation of the monitoring command, will be explained. Note that detailed explanations of the same operations as those of the control commands will be omitted.

First, the sending operation of the "monitoring command" and the receiving operation of the "response command" on the terminal control monitoring device (30) side are performed in the 11th
This will be explained with reference to the figures. FIG. 11 is a schematic operational flowchart showing the flow of operations of the "monitoring command" and the "response command".

In step (90), the terminal control monitoring device 30)
starts working.

In step (91), the terminal control monitoring device (30)
generates a "monitoring command" using the same procedure as for the "ON command" and transmits it to the terminal control and monitoring device (3^).

That is, the input unit (30e) detects the operation of a monitoring switch (not shown) of the control/monitoring electric mechanical device (40).

In step (92), the terminal control monitoring device (30)
receives the "response command" from the terminal control/monitoring device (3^), and drives the control/monitoring electric mechanical appliance (40) based on the "response command".

That is, the terminal control/monitoring device (30) controls the O/O of the control/monitoring electrical equipment (40) based on the "response command".
N10 FF Lights up or blinks the F indicator light (40a), overcurrent/short circuit trip indicator light (40b), earth leakage trip indicator light (40c), or abnormality indicator light (40d)0 For example,
If the earth leakage breaker (7^) responds that it is in an overcurrent/short circuit trip state, the control/monitoring electrical equipment (
40) makes the overcurrent/short circuit trip indicator light (40b) blink.

In step (93), the terminal control monitoring device (30)
ends the operation.

Next, the receiving operation of the "monitoring command" and the transmitting operation of the "response command" on the terminal control and monitoring device (3^) side are explained in the 11th step.
This will be explained with reference to the drawings and FIG. 12. FIG. 12 is an explanatory diagram showing monitoring information of the earth leakage breaker ()^).

In step (100), the terminal control monitoring device (3^
) starts working.

In step (101), the terminal control and monitoring device (3^
) receives a "monitoring command" from the terminal control monitoring device (30>).

That is, the transmitter/receiver (3a) receives the transmission signal on the signal transmission line (2), and checks the frame check code FC.
C is checked, and if it is normal, it is determined whether the other party's address DA is the address of the own station set by the own address setting section (3j). If the other party's address DA is the address of the local station, the command word CW, data count BC and data DT are passed to the code decoder (3b).

The code decoder (3b) determines whether the command word CW is a "monitoring command". In the case of a "monitoring command", the command word CW, data count BC and data DT are passed to the monitoring information generating section (3f) to operate the monitoring information generating section (3f).

In step (102), the terminal control monitoring device (3^
) generates monitoring information.

That is, the monitoring information generation unit (3f) generates the operation procedure of the earth leakage breaker (7^) stored in the operation procedure storage unit (38),
Based on the command word CW, data count BC, and data DT, the opening/closing data of the auxiliary contact AX, alarm contact AL, and earth leakage alarm contact EAL of the earth leakage breaker (78) detected through the input part (3e) is Based on these inputs, for example, seven types of monitoring information as shown in FIG. 12 are generated.

In the normal operation mode, if the auxiliary contact AX, alarm contact AL, and earth leakage alarm contact EAL are all "open", "leakage": 4
The OFF state of the circuit breaker (7^), "closed,""open," and "
"Open" means "ON state of earth leakage breaker (7^)", "Open", "Closed" and "Open" means "overcurrent/short circuit trip operation state", "Open", "Closed J and In the case of "leap", "monitoring information generation unit of earth leakage trip operation status J". Also, as abnormal operation mode, when auxiliary contact AX, alarm contact AL, and earth leakage alarm contact EAL are "closed", "closed", and "open""Overcurrent/short circuit trip operation abnormality", "Closed j
, "Open" (or "closed") and "closed" indicate "earth leakage trip operation abnormality", and when the opening/closing data of auxiliary contact AX, alarm contact AL, and earth leakage alarm contact EAL are combinations other than those listed above, "other Generates "abnormal" monitoring information.

In step (103), the terminal 11i control and monitoring device (3^) generates a "response command" and transmits it to the terminal control and monitoring device (30).

That is, the monitoring information generating section (3f) generates a command word CW representing a "response command", generates the data DT which is the above-mentioned monitoring information, and the number of data BC, and sends the same to the code generating section along with the command word CW. Give it to (31).

The code generation unit (31) converts the code of the command word cw, the number of data BC and the data DT, and sends the code to the transmission/reception unit (3a).
give it to

The transmitting/receiving unit (3a) sets the own address SA of the own station set by the own address setting unit (3j), and the other party which is the address of the terminal control and monitoring device (3o) set by the other party address setting unit (3k). Address DA and frame check code FCC are added to configure the frame of the transmission signal.

Then, the transmission signal is placed on the signal transmission line (2).

Further, the monitoring information generation unit (3f) passes the above-mentioned monitoring information etc. to the information processing unit (3-), and this information processing unit (:(+
) to work.

The information processing unit (3m) drives the display unit (3n) based on the above-mentioned monitoring information, etc., and displays the operating state of the terminal control and monitoring device (3^) and the ON10 FF state of the earth leakage breaker (7^), Overcurrent/short circuit trip status, earth leakage trip status, etc. are displayed on, for example, a liquid crystal display.

In step (104), the terminal control monitoring device (3^
) ends the operation.

Fourth, the operations based on abnormalities and state changes of the earth leakage breaker (7^), that is, the operations of notification commands and the operations of control commands and monitoring commands to the third terminal IIJ control and monitoring device will be explained. Note that the detailed explanation of the operations that are the same as those of the rON command J will be omitted.

First, the transmission operation of the "report command", "control command" and "monitoring command" on the terminal control and monitoring device (3^) side will be explained with reference to FIG. Figure 13 shows “
It is a strategic operation flowchart diagram showing the flow of operations of the "report command" and the "control command" and r monitoring command based on the abnormality and state change of the earth leakage circuit breaker (7^).

In step (ito), the terminal control and monitoring device (3^
) starts working.

In step (111), the terminal control monitoring device (3^
) inputs the opening/closing data of the earth leakage breaker ()8〉.

That is, the input unit (3e) has input terminals (3e, ), (
3ez) and <3e,), earth leakage circuit breaker (7^)
Alarm contact AL, earth leakage alarm contact EAL and auxiliary contact AX
detects the open/close state of the switch, generates a detection signal (open/close data), and outputs it to the monitoring information generation section (3f).

In step (112), the terminal control and monitoring device (3^
) determines whether the operating state of the earth leakage breaker (7^) has changed. If the operating state has changed (YES), proceed to the next step (113); if the operating state has not changed (No>), proceed to the final step (116).

That is, the monitoring information generation unit (3f) opens and closes the alarm contact AL, the earth leakage alarm contact EAL, and the auxiliary contact AX based on the operating procedure of the earth leakage breaker ()^) stored in the operating procedure storage unit (3s). Determine whether the data has changed.

In step (113), the terminal control and monitoring device (38) generates monitoring information based on the opening/closing data.

That is, the monitoring information generation unit (3'') generates the operation procedure of the earth leakage breaker <7^) and the opening/closing data of the alarm contact AL, the earth leakage alarm contact EAL, and the auxiliary contact AX, which are stored in the operation procedure recording unit (3S). Based on this, the monitoring information described in the operation of the "monitoring command" is generated.

Further, the monitoring information generation unit (3r) passes the above-mentioned monitoring information etc. to the information processing unit (3m).
make it work.

The information processing unit (3m) drives the display unit (3n) based on the above-mentioned monitoring information, etc., and displays the operating status of the terminal control monitoring device (3^) and the 0N10FF status of the earth leakage circuit breaker (7^).
Overcurrent/short circuit trip status, earth leakage trip status, etc. are displayed on, for example, a liquid crystal display.

In step (114), the terminal control monitoring device (3^
) determines whether to report based on the monitoring information. If the notification is to be made (YES), the process advances to step (117).

Also, if you do not want to report (No), proceed to the next step (,1
Proceed to step 15).

That is, the monitoring information generation unit (3f) determines whether to report based on the monitoring information.
S) is a command word C representing "report command"
W and sends it to the reporting command generation unit (38) together with the monitoring information.
).

In step (115), the terminal control monitoring device (3^
) determines whether to issue a "control command" or a "monitoring command" based on the monitoring information. If a "control command" or "monitoring command" is issued (YES), proceed to step (118); if a "control command" or "monitoring command" is not issued (No), proceed to the next final step (
116).

That is, the monitoring information generation unit (3f) determines whether to issue a "control command" or a "monitoring command" based on the monitoring information. When issuing a “control command” or “monitoring command J” (YES), a command word CW representing the “control command J” or “monitoring command” is generated and sent to the control/monitoring command generation unit (3h) along with the monitoring information. hand over.

In step (116), the terminal control and monitoring device <38) ends its operation.

In step (117), the terminal control monitoring device (3^
) generates a "report command" and sends it to the terminal control and monitoring device <30). Thereafter, the process proceeds to step (115).

That is, the reporting command generation section (3g) generates the accompanying data DT and the number of data BC based on the monitoring information and the command word CW, and passes the generated data together with the command word CW to the code generation section (31).

The code generation unit (31) converts the code of the command word CW, the number of data BC and the data DT, and sends the code to the transmission/reception unit (3a).
give it to

The transmitting/receiving unit (3a) transmits the self-address SA of the own station set by the self-address setting unit (3j) and the address of the terminal control/monitoring device (30) set by the other party address setting unit (3k). Address DA and frame check code FCC are added to configure the frame of the transmission signal.

Then, the transmission signal is placed on the signal transmission line (2) and interrupts the terminal control and monitoring device (30).

In step (118), the terminal control monitoring device (3^
) generates a "control command" or "monitoring command" and controls the third terminal control and monitoring device! Send to. Thereafter, proceed to the final step (116).

That is, the control/monitoring command generation unit (3h) generates the accompanying data D based on the monitoring information and the command word CW.
T and its data number BC, and command word C
It is passed along with W to the code generation unit (31).

The code generation unit (31) converts the code of the command word CW, the number of data BC and the data DT, and sends the code to the transmission/reception unit (3a).
give it to

The transmitting/receiving unit (3a) has its own address S A set by the own address setting unit (3j), and the address of the third terminal control and monitoring device set by the other party address setting unit (3k). A destination address DA and a frame check code FCC are added to form a transmission signal frame.

Then, the transmission signal is placed on the signal transmission line (2).

Next, the reception operation of the "report command" on the terminal control and monitoring device (30) side will be explained with reference to FIG.

In step (120), the terminal control monitoring device (30
) starts working.

In step (121), the terminal control monitoring device (30
) is a terminal control monitoring device that uses "report commands"! (38)
Determine whether it has been received from. If received (YE
S), proceed to the next step (122); if not received (NO), proceed to step (124).

That is, the transmitting/receiving section (30m) receives the transmission signal on the signal transmission line (2) when there is an interrupt, checks the frame check code FCC, and if it is normal, the other party's address DA is the self. It is determined whether the address of the own station is set by the address setting section (30j). When the other party's address DA is the own address, the command word CW, data number BC and data DT are sent to the code decoder (30
b).

The code decoder (30b) determines whether the command word CW is a "report command". “In the case of notification command J, the command word CW, data count BC, and data DT are passed to the monitoring information generation unit <3Of>, and the monitoring information generation unit (30f) is operated.

In step (122), the terminal control monitoring device (30
) decodes the “report command” and executes the next step (1
Proceed to 23).

That is, the monitoring information generation unit (30f) decodes the command word CW, the number of data BC, and the data DT.

In step (123), the terminal control monitoring device (30
) performs (processing) based on the "report command" and proceeds to step (124).

That is, the monitoring information generation unit (30f) performs third terminal control monitoring, if necessary, based on the operation procedure, command word CW, data count BC, and data DT stored in the operation procedure storage unit (30s). A command word CW representing a new "report command", "control command" or "monitoring command J" to the device is generated, and the report command generation unit (
30g) or the control/monitoring command generation unit (30h).

Notification command generation unit (30g>) or control/monitoring command generation unit (
30h) generates accompanying data DT and data count BC based on the command word C field, etc., and passes them along with the command word CW to the code generator (30i).

The code generation unit (30i) converts the code of the command word CW, the number of data BC, and the data DT and sends the code to the transmission/reception unit (30i).
30a).

The transmitting/receiving unit (30a) has a self-address setting unit (30j
), the other party's address DA, which is the address of the third terminal control and monitoring device set in the other party's address setting section (30k>), and the frame check code FCC are added to create a frame of the transmission signal. The transmission signal is then placed on the signal transmission line (2).

Further, the monitoring information generating section (3Of) passes the above-mentioned command word C field, etc. to the information processing section (30n>), and operates this information processing section (30m).

The information processing section (3m) drives the display section (3n) based on the above-mentioned command/word C field, etc., and displays the operating status of the terminal control/monitoring device (30), etc. on the liquid crystal.

In step (124), the terminal control monitoring device (30
) ends the operation.

Note that this invention does not need to be particular about the transmission method, and contact inputs, etc. corresponding to each control command, monitoring command, etc. may be transmitted to the terminal control and monitoring device of the other party, and a dedicated signal line or a power line may be used. This can be achieved by using a carrier or by a transmission system that applies various multiplex transmission techniques.

By the way, in the above embodiment, the number of addresses that can be set in the destination address setting section is one, but the same operation can be expected even if there are multiple addresses (2 to N). In this case, control commands, etc. can be sent to multiple terminal control and monitoring devices. can be sent.

In addition, in the above embodiment, the self-address setting section and the other party's address setting section were provided separately, but the same operation can be expected even if a single setting section provided with a changeover switch is used for both purposes, as shown in Fig. 6. can.

Furthermore, in the above embodiments, a liquid crystal is provided as a display unit so that the operating status of the connected power distribution equipment etc. can be visually checked, but other display means such as LEDs may also be used. Although a display unit is provided as an example, an audio output unit may also be provided.

Furthermore, in the above embodiment, operating procedures such as control signal generation procedures and monitoring information generation procedures are downloaded from initial commands sent from other terminal control and monitoring devices when the system is started up, and are stored in the operation procedure storage unit. I remember, but
It is also possible to transmit the operating procedure at the same time as the "ON command", which is a control command, and to transmit the optimal operating procedure each time.

[Effect of the invention] Since this invention is configured as explained above,
This produces the effects described below.

When constructing the system, there is no need for a central control and monitoring device, so the overall system is inexpensive and saves installation space.

In addition, regarding the operation of all connected power distribution equipment,
There is no need to be familiar with vast and complicated operating procedures and prohibitions.

Furthermore, since the minimum unit of control/monitoring is a macroscopic control command or monitoring command, the processing time required to complete one control/monitoring command is shortened, and the efficiency of use of signal transmission lines is greatly improved.

Furthermore, the optimum operating method for the connected power distribution equipment
ft can be input from other terminal control and monitoring devices, it is possible to control and monitor various power distribution equipment with one type of terminal control and monitoring device, and the degree of freedom as a terminal control and monitoring device is increased. It is possible to provide a system that can implement the optimal operation procedure for the changed power distribution equipment without changing the configuration of the system even if the equipment is changed.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a block diagram showing power distribution equipment connected to an embodiment of the invention, and Fig. 3 is a circuit diagram showing a part of Fig. 2. , Fig. 4 is a schematic block diagram showing a networked power distribution equipment control and monitoring system according to an embodiment of the present invention, Fig. 5 is a schematic block diagram showing another power distribution equipment control and monitoring system, and Fig. 6 is a terminal control for an earth leakage circuit breaker. A perspective view showing the monitoring device, Fig. 7 is a configuration diagram showing the frame structure of the transmission signal, Fig. 8 is a schematic operation flowchart showing the flow of operations of "rON command" and "response command", and Fig. 9 is an earth leakage cutoff. 10 is a flowchart showing the control procedure to turn the earth leakage breaker rOFF, and FIG. 11 is a schematic operation flowchart showing the flow of the rON command J and "response command". Figure, 1st
Figure 2 is an explanatory diagram showing the monitoring information of the earth leakage breaker, and Figure 13 shows the flow of operations of the "report command" and the "control command" and "monitoring command" based on abnormalities and status changes of the earth leakage breaker. A schematic operation flowchart, FIG. 14 is a block diagram showing a conventional power distribution equipment control and monitoring device,
FIGS. 5(a) to 5(e) are time charts showing signal waveforms of various parts in the conventional example. In the figure, (3^), (30) ... - (3&), (30a) ... (3b), (30b) ... (3c), (30c) ... (3d), (30d ) ... (3e), (30e) ... Terminal control and monitoring device, transmitting/receiving section, code decoding section, control signal generation section, drive output section, input section, (30r) (30g) (30h) ( 30i) (30s) (3f, (3g, (3h. section, operating procedure storage section, earth leakage breaker, cap 1 monitoring electrical and mechanical equipment.

Claims (3)

[Claims] (1) An input unit that detects the operating state of connected power distribution equipment and generates a detection signal, a monitoring information generation unit that generates monitoring information or response commands based on the detection signal, and a control command based on the monitoring information. A transmission system includes a control command generation unit that generates a control command, a code generation unit that converts the code of the control command or response command, and a transmission unit that transmits a transmission signal including the code-converted control command or response command, and A receiving unit that receives a transmission signal, a code decoding unit that decodes the transmission signal as a code of the control command or response command, and a code decoding unit that stores an operation procedure for operating the power distribution equipment transmitted from an external transmission device. a control signal generation section that generates a control signal based on the operation procedure and the control command or response command; and a drive output that outputs a drive signal that drives the power distribution equipment based on the control signal. a first terminal control and monitoring device constituting a reception system from the section, and a second terminal control and monitoring device having the same configuration as the first terminal control and monitoring device, A power distribution equipment control and monitoring device characterized in that when the second terminal control and monitoring device transmits the control command, the second terminal control and monitoring device or the first terminal control and monitoring device transmits the response command. (2) An input unit that detects the operating state of connected power distribution equipment and generates a detection signal, a monitoring information generation unit that generates monitoring information or response commands based on the detection signal, and a monitoring command based on the monitoring information. A transmission system includes a monitoring command generation unit that generates the monitoring command or the response command, a code generation unit that converts the code of the monitoring command or the response command, and a transmission unit that transmits a transmission signal containing the code-converted control command or response command, and A receiving unit that receives a transmission signal, a code decoding unit that decodes the transmission signal as a code of the monitoring command or response command, and a code decoding unit that stores an operation procedure for operating the power distribution equipment transmitted from an external transmitting device. a control signal generation unit that generates a control signal based on the operation procedure and the response command; and a drive output unit that outputs a drive signal that drives the power distribution equipment based on the control signal. A first terminal control and monitoring device constituting the system, and a second terminal control and monitoring device having the same configuration as the first terminal control and monitoring device, the first terminal control and monitoring device or the second terminal A power distribution equipment control and monitoring device characterized in that when the control and monitoring device transmits the monitoring command, the second terminal control and monitoring device or the first terminal control and monitoring device transmits the response command. (3) An input unit that detects changes in the state of connected power distribution equipment and generates a detection signal, and an operation procedure that can store the operation procedure for generating monitoring information of the power distribution equipment transmitted from an external transmitting device. a storage unit, a monitoring information generation unit that generates monitoring information based on the operating procedure and the detection signal, a notification command generation unit that generates a notification command based on the monitoring information, a code generation unit that converts the code of the notification command. , and a transmitting unit configured to transmit a transmission signal including the code-converted notification command, a receiving unit receiving the transmission signal, and a code decoder to decode the transmission signal as the code of the notification command. and a first terminal control and monitoring device that constitutes a receiving system from the monitoring information generation section that determines the next operation based on the notification signal, and a first terminal control and monitoring device that has the same configuration as the first terminal control and monitoring device. 2 terminal control and monitoring devices, and when the first terminal control and monitoring device or the second terminal control and monitoring device transmits the notification command, the second terminal control and monitoring device or the first terminal control and monitoring device A power distribution equipment control and monitoring device, characterized in that the device receives the notification command.