KR101744059B1 - Device for remotely controlling auto section switches and remotely monitoring conditions thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a remote control and status monitoring apparatus for an automatic break switch of a fault section. The present invention provides a fault diagnosis system comprising: a status signal receiving unit for receiving a status signal indicating a status of an automatic fault breaker switch from an automatic fault breaker switch through an optocoupler; A control signal transmitter for transmitting a control signal for controlling the fault section automatic switch to the fault section automatic switch through the photocoupler; A data encoding unit for encrypting the status signal to generate a status display character string; A data decoding unit that receives a control command string from the CDMA modem and decodes the control command string to generate a control signal; A CDMA modem that transmits a status display string to a mobile phone and receives a control command string from a mobile phone; A display unit for displaying a control signal and a status signal on a monitor through a graphic user interface; And a memory unit for storing a history of receiving the status signal from the status signal receiving unit and a history of transmitting the control signal from the control signal transmitting unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a remote control and status monitoring apparatus for a malfunction period automatic shut-

The present invention relates to a remote control and condition monitoring apparatus for an automatic set switch (ASS), more particularly, to a high-pressure customer's incoming switch that receives electricity at a high voltage of 22.9 kV-Y, The present invention relates to an apparatus for remotely controlling an automatic breaker of a fault section through a CDMA modem and remotely monitoring the state of a fault section automatic breaker.

The fault section automatic switch is a switch that automatically separates the fault section in cooperation with the protection device attached to the distribution line to prevent the customer's ripple failure. The protection device includes a recloser and a circuit breaker (CB). The fault section automatic switch normally consists of a main body and a control box. When the fault current is less than the LOCK current, the automatic fault switch disconnects the fault switch automatically (single operation). If the fault current exceeds the LOCK current, )do. The automatic switch of the fault section can be coordinated with the protection device so that the breakdown of the high pressure customer can be prevented from spreading to the distribution line and the damage of the customer can be minimized.

In order to do this, it is necessary to cut off the automatic switch in the fault zone installed at the property limit, but at present, there is no way to block the line remotely, There is a problem that it is required to wait until the work is finished and turn it on again after turning off the automatic breaker in the fault zone by dispatching to the site.

In the prior art, there is no system for remotely operating the fault section automatic switch or detecting the abnormality, so that the status measurement and control of the fault section automatic switch can be performed only in the field. Therefore, even if the customer who has the fault section automatic switch is broken and the fault section automatic switch automatically cuts off, the power supply entity can not recognize the fact that the switch of the fault section automatic switch is disconnected, There is a problem that it is possible to know whether it is operating or not.

In addition, the battery must maintain the normal charge state in order to operate the fault section automatic shut-off directly and the axis set lap operation normally. When the body lock or gas pressure fault occurs, the fault section automatic switch can not perform any operation. It is essential to maintain the optimal state for Failure to detect the change of the state value of the automatic break switch for the normal operation in real time can not achieve the function of the automatic switch of the fault section provided for the prevention of the ripple failure and eventually lead to the breakdown failure of the same type have. Therefore, there is a need for a remote condition measuring device for optimal condition monitoring so that normal operation of the automatic breaker can be performed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for remotely controlling a fault section automatic switch by using a CDMA modem and remotely monitoring the state of a fault switch automatic switch.

In order to accomplish the above object, the present invention provides a remote control and status monitoring apparatus for a fault section automatic switch, comprising: a status signal receiving unit for receiving a status signal indicating a status of a fault section automatic switch from an automatic switch of a fault section through an optocoupler; A control signal transmitter for transmitting a control signal for controlling the fault section automatic switch to the fault section automatic switch through the photocoupler; A data encoding unit for encrypting the status signal to generate a status display character string; A data decoding unit receiving a control command string from a CDMA modem and decoding the control command string to generate the control signal; A CDMA modem for transmitting the status display string to a mobile phone and receiving the control command string from a mobile phone; A display unit for displaying the control signal and the status signal on a monitor through a graphic user interface; And a memory unit for storing a history of receiving the status signal from the status signal receiving unit and a history of transmitting the control signal from the control signal transmitting unit.

According to an embodiment, the status signal may comprise a status signal indicative of an open / close switch open condition, an open / close switch closing condition, a switch lock condition, a gas pressure condition, a battery check condition and a live part check condition, , A switch open command, and a control signal for conducting a battery test command.

According to the present invention, it is possible to remotely control the fault section automatic switch and remotely monitor the condition of the fault section automatic switch, it is possible to easily recognize whether the automatic switch is in operation during the fault section, It is now possible to instantly remotely control the system without shutting down the system in case of shutting down and inputting the automatic switch in the fault zone due to periodical inspection or simple power failure.

In addition, according to the present invention, optimal condition monitoring for normal operation is possible, and in particular, battery condition determination included in the automatic breaker of a fault section is facilitated, so that factors that can be expanded to ripple failure can be eliminated in advance.

FIG. 1 is a block diagram of a remote control and status monitoring apparatus for an automatic break switch in a fault zone according to the present invention.
FIG. 2 is a circuit diagram showing the connection between the remote control and state monitoring apparatus of the automatic breaker of the fault section according to the present invention and the contactor circuit of the control section of the automatic breaker of the fault section.
3 is a view for explaining an embodiment of a structure of a status display string and a control command string according to the present invention.
FIGS. 4 to 7 are diagrams showing an embodiment of an application program for performing control and status monitoring of a fault section automatic switch through a remote control and status monitor of a fault section automatic switchgear according to the present invention. Fig. 5 shows a screen being monitored by the status measurement value, Fig. 6 shows a screen for setting the environment of the application program, and Fig. 7 shows a log history inquiry screen.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a remote control and status monitoring apparatus for an automatic break switch in a fault zone according to the present invention. In Fig. 1, arrows indicate directions in which signals or data move.

Referring to FIG. 1, an apparatus for remote control and status monitoring of a fault-zone automatic opening and closing apparatus 100 includes photocouplers 10 and 20, a status signal receiving unit 30, a control signal transmitting unit 40, a data encoding unit 50, a data decoding unit 60, a CDMA modem 70, a display unit 80, and a memory unit 90.

The photocoupler 10 senses a state change generated by the automatic break switch 110 and transmits the detected state change to the state signal receiving unit 30. The photocoupler 10 is an optoelectronic device for outputting a state value change for transferring a logic signal.

In addition, the photocoupler 30 transmits the control signal generated in the remote control and state monitoring apparatus of the automatic fault breaker according to the present invention to the fault opening automatic switch. The photocoupler 30 may amplify the control signal through the transistor, and then transmit the control command to the automatic breaker of the fault section.

The state signal receiving unit 30 receives a state signal indicating the state of the fault section automatic switch from the fault section automatic switch through the photocoupler. Such a state signal may include a state signal indicating an open / close state of the switch, an open / close state of the switch, a lock state of the switch, a gas pressure state, a battery check state, and a live part check state.

The control signal transmitting unit 40 transmits a control signal for controlling the fault section automatic switch to the fault section automatic switch through the photocoupler. This control signal may include a switch input command, a switch open command, and a control signal for conducting a battery test command.

The data encoding unit 50 generates a status display character string by encrypting the status signal indicating the status of the automatic breaker of the fault section. The data decoding unit 60 receives a control command string from the CDMA modem and decodes the control command string to generate a control signal for controlling the automatic switch of the fault section.

3 is a view for explaining an embodiment of a structure of a status display string and a control command string according to the present invention. According to an embodiment of the present invention, the status display character string and the control command character string may each be composed of nine characters. As shown in FIG. 3, the nine characters may be divided into a portion including a status display and a control command composed of four characters, and a portion including a password consisting of five characters. For example, the number 1 may be used for status measurement and the number 0 may be used for execution in the status indication and control command inclusion part. In the password section, special characters can be configured to be used. For example, a string such as "0111-4838" can be used for the close control, and a string such as "1011-4838 " can be used for the open control. The password can be specified by the user and stored in the memory unit or database. The apparatus according to the present invention may include a microcomputer and may be set or controlled by a microcomputer so that no operation is performed when the character structure is different or the password is different.

The CDMA modem 70 transmits the status display character string to the cellular phone and receives the control command character string from the cellular phone. The real-time status measurement information or state change information of the switch may be transmitted to the mobile phone through the CDMA modem. Although not shown, the apparatus according to the present invention may include a database engine, and the status display string may be transmitted only to a user's mobile phone registered in the database as a switch operator or an operator, And can be controlled by the microcomputer to receive from the mobile phone.

The display unit 80 displays a control signal for controlling the malfunction period automatic switch and a status signal indicating the status of the malfunction period automatic switch in the monitor through the graphical user interface. In other words, the state measurement information or the state change information measured by the automatic switch of the fault section is transmitted to an application program that performs control and status monitoring of the fault section automatic switch through the remote control and state monitoring device of the fault section automatic switch . Such an application program can be executed not only in the apparatus according to the present invention, but also in a computer directly connected to the fault section automatic door switch remote control and condition monitoring apparatus or a computer for remotely managing the fault section automatic door switch through wired / wireless communication Computer).

FIGS. 4-7 illustrate one embodiment of such an application. In Fig. 4, yellow indicates a control command transmission state, and green indicates a steady state and red indicates an abnormal state in Fig. FIG. 6 shows a screen for setting an environment in which an application program is executed, such as an administrator password and a communication environment.

The memory unit 90 stores the history of receiving the status signal from the status signal receiving unit and the history of transmitting the control signal from the control signal transmitting unit. The stored history can be confirmed by inquiring the log history through the application program as shown in FIG.

FIG. 2 is a circuit diagram showing the connection between the remote control and state monitoring apparatus of the automatic breaker of the fault section according to the present invention and the contactor circuit of the control section of the automatic breaker of the fault section.

In FIG. 2, a rectangle indicated by a dotted line related to measurement of the open / close state of the open / close device, measurement of the state of the open / close device, measurement of the open / close state of the lock, state of the gas pressure, measurement of the battery, A photocoupler represents a connected portion in parallel. The remote control and status monitoring device of the fault section monitors the status signal value in the control box of the fault section automatic switch in real time and can transmit the status of the fault section automatic switch through the CDMA modem when the status signal value is changed.

In addition, in FIG. 2, a rectangle indicated by a dotted line, which is associated with switch control, open / close control, and battery control, denotes a portion where transistors are connected in parallel. In this case, the transistor amplifies a control signal transmitted through a photo- . In the control box of the fault section automatic switch, the object to be controlled is switched according to the control signal received from the remote control and condition monitoring device of the fault section automatic switch.

The automatic remote breaker remote control and condition monitoring apparatus according to the present invention performs the charging / discharging control of the automatic breaker main body, the charging unit and the battery, and transmits the execution result to the mobile phone and the computer. According to the embodiment, the battery test can be set so as to determine whether there is an abnormality after self-running once every 12 hours, and to notify the status only when abnormality occurs, without any separate control command.

Meanwhile, in order to monitor the real-time status of the automatic breaker of the fault zone, the real-time monitoring of the change of the input and the open state, the gas pressure, the battery, To the computer. Depending on the embodiment, the voltage and current values can be set to be notified to the manager when the set change amount is out of range or at a user set time interval.

The terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting of the invention. It will be understood from the foregoing description that the above description and equivalents thereof may be implemented in various forms. Therefore, while the description of the invention has been described with reference to particular embodiments, it is to be understood that the subject matter encompassed by the present invention includes the following claims and any equivalents that may occur to those skilled in the art, But is not limited to the specific examples.

10: Photo coupler 20: Photo coupler
30: status signal receiver 40: control signal transmitter
50: data encoding unit 60: data decoding unit
70: CDMA modem 80:
90:
100: Remote control and status monitor
110: Automatic break switch of fault section 120: Mobile phone

Claims (2)

A remote control and status monitoring apparatus for an automatic switchgear of a fault zone,
A state signal receiving unit for receiving a state signal indicating the state of the fault section automatic switch from the fault section automatic switch through the photocoupler;
A control signal transmitter for transmitting a control signal for controlling the fault section automatic switch to the fault section automatic switch through the photocoupler;
A data encoding unit for encrypting the status signal to generate a status display character string;
A data decoding unit receiving a control command string from a CDMA modem and decoding the control command string to generate the control signal;
A CDMA modem for transmitting the status display string to a mobile phone and receiving the control command string from a mobile phone;
A display unit for displaying the control signal and the status signal on a monitor through a graphic user interface; And
And a memory unit for storing a history of receiving the status signal from the status signal receiving unit and a history of transmitting the control signal from the control signal transmitting unit,
Wherein the status display string and the control command string are divided into a part including a status display and a control command and a part including a password,
Wherein the fault section automatic door switch remote control and status monitoring device transmits the status display string to the mobile phone and receives the control command string from the mobile phone.
The method according to claim 1,
The state signal includes a state signal indicating an open / close-open state, an open / close state closing state, an open / close state locked state, a gas pressure state, a battery check state,
Wherein the control signal includes a control signal for turning on and off a switch, an open and close command, and a battery test command.

Images