JP2978468B2 - Track information monitoring method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line information monitoring method used for monitoring line current information on a distribution line at a master station terminal or a line information monitoring terminal instead of the master station terminal.

[0002]

2. Description of the Related Art A distribution line automation system that has already been put to practical use combines a large number of switches arranged on a distribution line with slave station devices attached to monitor and control each switch. This is a system in which a switch can be monitored and controlled by communication from a master station terminal.

[0003] In order to effectively manage and operate a distribution line, it is desirable to monitor line current information at each point of the distribution line by a master station terminal or a line information monitoring terminal instead of the master terminal. For this purpose, a sensor that measures the line current of the distribution line and a new slave station device that transmits the line current value measured by the sensor to the master station terminal may be arranged at each point of the distribution line. If the slave station device which has been used in the past is removed after the slave station device is attached, the existing device will be wasted and the capital investment cost will be increased.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and reduces the line current at each point of the distribution line while reducing the facility cost by utilizing the existing distribution line automation system. The purpose of the present invention is to provide a line information monitoring method in which information can be monitored by a master station terminal or a line information monitoring terminal that replaces the information.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a line information monitoring method according to the present invention is provided.
Connected via communication line and distributed by communication from master station terminal
A line information communication device equipped with a sensor for measuring the line current of a distribution line is added to a slave station device for controlling and monitoring a line switch, and the line measured by the sensor is used for information transmitted by the slave station device. By adding the current value,
It is characterized in that line current information is monitored by a master station terminal or a line information monitoring terminal that replaces it.

[0006]

According to the present invention, by incorporating a linear path information communication device to an existing distribution line automated, the information slave station apparatus transmits, it is possible to add a line current value measured by the sensor In addition, it is possible to monitor line current information at each point of a distribution line with a master station terminal or a line information monitoring terminal instead of the master station terminal while minimizing new capital investment by utilizing an existing system.

[0008]

Embodiments of the present invention will be described below. FIG. 1 shows a configuration of an existing distribution line automation system.
1 is a distribution line, 2 is a switch arranged on a utility pole to open and close this distribution line 1, 3 is a slave station device attached to monitor and control each switch 2 and 4 is a distribution line 1 A transformer for converting the voltage into a power supply voltage for the slave station device 3, a power cable 5 for supplying the voltage converted by the transformer 4 to the slave station device 3, and a power supply 6 for turning on and off the power supply to the slave station device 3 A switch cable 7 for monitoring and controlling the switching of the switch 2 by the slave station device 3. The slave station device 3 and the master station terminal 8 can communicate with each other via the communication line 9, the communication terminal device 10, and the communication cable 11.
Control the switch and monitor the switch.
Can be.

The communication terminal device 10 connects the communication line 9 and the communication cable 11. The switch 6 is not particularly necessary in the existing distribution line automation system.

FIG. 2 is a diagram showing an embodiment of the present invention.
Parts of the present invention are indicated by bold lines. In this configuration, the power cable 5 and the communication cable 11 in the configuration of FIG.
And connected to the line information communication device 12, the line information communication device 12 and the slave station device 3 are connected by the power cable 13 and the communication cable 14, and the sensor provided in the line information communication device 12. 15 is attached to the distribution line 1.

In the present invention, a line information communication device 12 having a sensor 15, a power cable 13 and a communication cable 14 are additionally incorporated into an existing distribution line automation system.
The sensor 15 detects a line current of the distribution line 1, and converts a signal detected by the sensor 15 into line current information by an internal circuit of the line information communication device 12.

The line information communication device 12 interrupts between the slave station device 3 and the communication terminal device 10 which are conventionally directly connected, and the sensor information is transmitted to the master station terminal 8 by the slave station device 3 in the related art. 15 has a function of adding the line current information of the distribution line measured by 15. FIG. 3 shows a configuration of communication information when the line current information is added to the information transmitted by the slave station device 3. Further, the line information communication device 12 has a function of interrupting between the slave station device 3 and the switch 6 which are conventionally directly connected, and supplying power to the slave station device 3 and the line information communication device 12.

The information on which the line current information is added by the line information communication device 12 in this manner is transmitted to the communication cable 1.
4. Master station terminal 8 via communication terminal device 10 and communication line 9
Sent to. In the master station terminal 8, each slave station device 3 as in the related art is used.
Can be communicated with, and the switch 2 can be monitored and controlled. However, when the line current information cannot be monitored in the master station terminal 8, the line current monitoring terminal 16 is changed to the master station terminal 8.
In addition, line current information can be monitored.

[0014]

According to the present invention, the line information communication device 12, the power cable 13 and the communication cable 14 only need to be added to the existing distribution line automation system. There is an advantage that it is possible to construct a system capable of suppressing the inexpensive line current information while suppressing it.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an existing distribution line automation system.

FIG. 2 is a block diagram showing a configuration of a distribution line automation system incorporating a line information communication device capable of monitoring line current information according to the present invention.

FIG. 3 is an explanatory diagram relating to communication information of the present invention.

[Explanation of symbols]

1 distribution line, 2 switch, 3 slave station device, 4 transformer, 5 power cable, 6 switch, 7 switch cable, 8 master station terminal, 9 communication line, 10 communication terminal device, 11 communication cable, 12 line information communication Device, 1
3 power cable, 14 communication cable, 15 sensor, 16 line information monitoring terminal

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) H02J 13/00-13/00 311

Claims (1)

(57) [Claims] 1. A master station connected to a master station terminal via a communication line.
Controlling distribution line switches by communication from terminals
The slave station apparatus for monitoring also adds the line information communication apparatus provided with a sensor for measuring the line current of the distribution line, the slave station apparatus adds a line current value measured by the sensor information transmitted that Wherein the line current information is monitored by a master station terminal or a line information monitoring terminal in place of the master station terminal.