JPH024043A - Terminal control monitor - 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] [Industrial Application Field] The present invention is applicable to protection 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 terminal control/monitoring device that can control ON, OFF, etc. of a wide variety of power distribution equipment such as instrumentation equipment.

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

FIG. 3 is a block diagram showing a conventional terminal control and monitoring device.

In FIG. 3, the terminal control and monitoring device (20) is (1)
, (2), (3), (4), (5), (6), (7),
It is composed of (8), (9), (10), (11,) to (lln), and (12).

(1) is a receiving terminal, (2) is a receiving unit connected to this receiving terminal (1), (3) is a message analysis unit connected to this receiving unit (2), and (4) is this message A control unit connected to the analysis unit (3), (5) a control output terminal connected to this control unit (4), (6) a monitoring input terminal, and (7) this monitoring input terminal (6) and A monitoring input section (8) is connected to the control section (4), a response message generation section (9) is connected to the monitoring input section (7), and (9) is connected to the response message generation section (8). The transmitting section (10) is a transmitting terminal connected to this transmitting section (9).

In addition, (11,) to (lln) are response destination setting switches,
In (12), the input side is connected to these response destination setting switches (11).
, ) to (lln), and the output side is connected to the transmitter (9
) is a response destination indicator connected to

Here, one frame of the message is, for example, the source address S
A, response destination address DA, command word CW, data DT, and frame check code FCC.

The source address SA is the address of the source central control monitoring device or terminal control monitoring device itself, and the response destination address DA is the address of another terminal control monitoring device, etc. to which the response is directed, and the command.
The word CW indicates the type of command such as a control command or a monitoring command, the data DT indicates data accompanying the command word CW, and the frame check code FCC indicates the consistency of the entire frame.

Next, the operation of the above-mentioned conventional example will be explained.

First, the terminal control/monitoring device (20) manually sets the address of the central control/monitoring device, terminal control/monitoring device, etc. (not shown) that is the response destination via the response destination setting switch (111).
(lln).

For example, a case will be described in which the terminal control and monitoring device (20) receives a message of a control command and transmits a response message.

The receiving unit (2) receives a message on a signal transmission line (not shown) via the receiving terminal (1), checks its frame check code FCC, and if it is normal, determines whether the response destination address DA is the address of its own station. determine whether If the response destination address DA is the address of the local station, the command word CW and data DT are passed to the message analysis section (3).

The message analysis unit (3) analyzes whether the command word CW is a control command. In the case of a control command, the command word CW and data DT are passed to the control unit (4),
This control section (4) is operated.

The control unit (4) controls the command word CW and data DT.
Based on this, a control signal is generated and outputted to operate a power distribution device (not shown) connected to the control output terminal (5). Also, the monitoring input section (7) is operated.

The monitoring input unit (7) inputs monitoring information from the power distribution equipment etc. connected to the monitoring input terminal (6) and passes it to the response message generation unit (8).

The response message generating section (8) generates a response message such as a command word CW, data DT, etc., and passes it to the transmitting section (9).

The transmitting unit (9) is instructed by the transmission source address SA of its own station and the response destination instruction unit (12), and the response destination setting switch (
Response destination address DA set in 11,) to (lln)
and frame check code FCC are added to form a response message frame. Then, the response message is placed on the signal transmission line via the transmission terminal (10).

[Problems to be Solved by the Invention] In the conventional terminal control and monitoring device as described above, response destination addresses must be manually set, and each time the number of response destinations increases, response destination addresses must be additionally set. There was a problem.

The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide a terminal control and monitoring device that can automatically and accurately set a response destination address.

[Means for Solving the Problems] A terminal control and monitoring device according to the present invention includes the following means.

(a) A receiving unit that receives messages.

(b) A message analysis unit that analyzes the contents of the above message.

(1) A control unit that outputs a control signal based on the content of the message.

(1) A source address detection unit that detects a source address from the message.

(E) A response destination address storage unit that stores the transmission source address as a response destination address.

(power), monitoring input section for inputting monitoring information.

(g) A response message generation unit that generates a response message based on the monitoring information.

(i) a response destination address instruction unit that indicates a response destination address stored in the response destination address storage unit when transmitting the response message;

(k) A transmitting unit that transmits the response message to the response destination address.

[Operation] In this invention, the source address detection section
The source address is detected from the message.

Further, the response destination address storage section stores the transmission source address as a response destination address.

Then, the response destination address instruction section instructs the response destination address stored in the response destination address storage section when transmitting the response message.

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

FIG. 1 is a block diagram showing one embodiment of the present invention, and (1) to (10) are completely the same as those of the conventional device described above.

In FIG. 1, the terminal control and monitoring device (20^) is (1
) to (10), <13), (14) and (15).

(13) is a source address detection unit connected to the receiving unit (2), (14) is a response destination address storage unit connected to this source address detection unit (13), and (15) is the input side as the response destination. It is a response destination address designation unit connected to the address storage unit (14) and whose output side is connected to the transmission unit (9).

Next, the operation of the above embodiment will be explained with reference to FIG. FIG. 2 is a system configuration diagram showing a transmission system using a plurality of embodiments.

In Figure 2, (20B), (20C) to (20K>
is a terminal control and monitoring device having the same configuration as the terminal control and monitoring device (20^), and (30) is a terminal control and monitoring device (20^).
A central control and monitoring device having the same configuration as ^), (31)
is a controlled device connected to this central control and monitoring device (30), and (32) is a signal transmission line.

For example, a case will be described in which the terminal control and monitoring device (20^) receives a control command message from the central control and monitoring device (30) and transmits a response message.

The receiving section (2) connects the signal transmission line (
32) Receive the above message, check its frame check code FCC, and if normal, determine whether the response destination address DA is the address of the own station. If the response destination address DA is your own address, the command word C
Pass W and data DT to the message analysis section (3). Further, the message is passed to the source address detection section (13).

The message analysis unit (3) analyzes whether the command word CW is a control command. In the case of a control command, the command word CW and data DT are passed to the control unit (4),
This control section (4) is operated.

The control unit (4) controls the command word CW and data DT.
Based on this, a control signal is generated and outputted to operate a power distribution device (not shown) connected to the control output terminal (5). Also, the monitoring input section (7) is operated.

The monitoring input unit (7) inputs monitoring information from the power distribution equipment etc. connected to the monitoring input terminal (6) and passes it to the response message generation unit (8).

The response message generating section (8) generates a response message such as a command word CW, data DT, etc., and passes it to the transmitting section (9).

Here, the source address detection section (13) detects the address of the central control and monitoring device (30), which is the source address, from the message and passes it to the response destination address storage section (14).

The response destination address storage unit (14) stores the central control and monitoring device (
30) is stored as the response destination address.

The transmitter (9) receives the source address SA of its own station, the response destination address DA instructed by the response destination address instruction section (15) and stored in the response destination address storage section (14),
A frame check code FCC is added to form a response message frame. Then, the response message is placed on the signal transmission line (32) via the transmission terminal (10).

In this way, each terminal control and monitoring device (20^) ~ (20X)
Each time it receives a message of a control command, it stores the address of the central control and monitoring device (30) that issued the message as a response destination address, and sends information about control results to the stored response destination address, for example. Sends back a response message.

In the above embodiment, only one response destination address is stored, but the same operation can be expected even if multiple response destination addresses are stored and responses are made to all of the stored response destination addresses.

[Effects of the Invention] As explained above, the present invention includes a receiving unit that receives a message, a message analysis unit that analyzes the content of the message, and a control signal that outputs a control signal based on the content of the message. a control unit; a source address detection unit that detects a source address from the message; a response destination address storage unit that stores the source address as a response destination address; a monitoring input unit that inputs monitoring information; a response message generation unit that generates a response message based on monitoring information; a response destination address instruction unit that indicates a response destination address stored in the response destination address storage unit when transmitting the response message; Since the present invention includes a transmitter for transmitting a response message to the response destination address, the response destination address can be automatically and accurately set.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing one embodiment of the present invention, Fig. 2 is a system configuration diagram showing a transmission system using multiple embodiments of the invention, and Fig. 3 is a block diagram showing a conventional terminal control and monitoring device. It is. In the figure, (2... receiving section, (3... message analyzing section, (4... control section, (7... monitoring input section, (8... response message generating section, ( 9) ... Transmission section, (13) ... Source address detection section, (14)
・・・Response destination address storage unit, (15) ・・
・Response destination address instruction section, (20^)... This is a terminal control and monitoring device. In addition, the same reference numerals in each figure refer to the same or corresponding parts.

Claims (1)

[Claims] A receiving unit that receives a message, a message analysis unit that analyzes the content of the message, a control unit that outputs a control signal based on the content of the message, and a source address that detects a source address from the message. a detection unit, a response destination address storage unit that stores the source address as a response destination address, a monitoring input unit that inputs monitoring information, a response message generation unit that generates a response message based on the monitoring information, and a response message generation unit that generates a response message based on the monitoring information. The present invention is characterized by comprising: a response destination address instruction section that indicates a response destination address stored in the response destination address storage section when transmitting a message; and a transmission section that transmits the response message to the response destination address. terminal control and monitoring equipment.