KR20100103283A - Apparatus for access warning and preventing against electric car line - Google Patents

Abstract

PURPOSE: The electric car line access emergency signal and blocking device effectively prevent the electric shock accident due to the electric car line through the improvement of the reliability about the apparatus by constituting circuit among two. CONSTITUTION: The antenna(21) senses the pressurization state of the electric car line(10). The antenna module part(22) amplifies the signal detected from antenna. The antenna module part inspects the disconnection of antenna, and short-circuit, the electric leakage state and antenna its own circuit. The door on off monitor(40) sends the keying signal to the controller part(23) by inspecting the switching state of door.

Description

Tank line approach warning and blocking device {APPARATUS FOR ACCESS WARNING AND PREVENTING AGAINST ELECTRIC CAR LINE}

The present invention is installed in a vehicle running a railway track, for example, a vehicle for maintenance work, checks whether the tank line is pressurized to warn the worker of the danger, and monitors the worker's access to the tank line, The present invention relates to a new type of catenary access warning and blocking device that can effectively prevent the worker's access to the surrounding catenary lines so as to effectively protect the worker from safety accidents caused by the catenary.

In general, an electric vehicle is a vehicle that moves on rails installed on a track, and refers to all vehicles, such as electric cars and trains, which are supplied with electricity from an electric car line or an electric car line or a trolley line. Refers to electric wires for supplying electricity to electric vehicles.

The electric vehicle is supplied with electricity from the tram line that supplies electricity, and the tram line is located higher than the roof of the electric vehicle, and a pantograph (top current collector) of the electric vehicle is in contact with the bottom of the electric tank line. Is installed.

On the other hand, for maintenance of electric cars running on railway tracks and maintenance of tank lines, an operator is inevitably positioned close to the tank line, and electric shock is caused by contact with a tank line pressurized by the operator without recognition or by the operator's mistake. Disasters, etc. can occur, and train line workers are always at serious risk. Therefore, when working around a pressurized tank line, the worker should check whether the tank line is pressurized in advance and work on it, and it is necessary to have a system to alert the operator to be sure that the tank line is pressurized. have.

The Republic of Korea Utility Model Registration No. 20-0170734 (name of the draft: live access alarm for lamps) attaches an alarm to the worker's helmet to indicate high voltage or live access, and intensively lights or walks at the working position during night work. A lamp-type liveline approach alarm is disclosed to maximize the efficiency of work by attaching a lamp that can illuminate the front when preventing accidents and to prevent safety accidents.

Looking at the configuration of the conventional utility model of the prior art with reference to Figure 1, the lamp-type liveline approach alarm 10 is a battery for supplying a voltage of a predetermined level, the oscillation means for generating a sound of a predetermined frequency, and the oscillation The main body including an operation switch 21 for driving the means and a sensing means for detecting an electromagnetic field of a live wire and converting it into an electrical signal, and a lamp integrally formed on the front surface of the main body 20 to illuminate light of a predetermined intensity. 12, a lamp switch for supplying or cutting off the power of the battery to the lamp 12, the mounting means 14 and / or 16 for coupling and fixing the main body 20 to the hard hat (11) is included.

In addition, Korean Registered Utility Model No. 20-0433326 (designated name: live access warning device) is provided to workers when they come into contact with or come near high or special high voltage lines or facilities during live work such as live work or live close proximity work. For the sake of clarity, an electric field detector detects an electric field generated from a line or facility to which a voltage is applied, generates an electric field detection signal, and transmits the electric field detection signal to a processing unit, and receives an electric field detection signal from the electric field detection unit. A live line approach warning device comprising a processing unit for generating a signal, comprising: a live line approach alarm including an oscillating unit coupled to an axis of rotation of a motor and connected to the processing unit and vibrating when a field alarm signal is generated in the processing unit; An apparatus is disclosed.

However, the approach alarm according to the prior arts is not inherently blocking the worker's access near the pressurized catenary, but the worker wears it on the helmet and / or wrist at the time of operation, and the worker accidentally safety. If you do not work on your wrist or wrist, or if you do not operate the operation switch even if you wear it on your helmet or wrist, you cannot guarantee the safety of the operator. It has a limitation that it is not possible to fundamentally prevent a safety accident caused by a pressurized wire in that it generates an oscillation sound and / or vibration to warn an operator. In addition, since only the lamp or sound and / or vibration signal is output by the live access warning method, the safety of the worker cannot be effectively guaranteed in a work environment that may distract the worker, such as a bright or noisy place. Have Furthermore, in the case of an unauthorized accessor, there is a possibility of approaching a pressurized tank line without recognizing the pressurized state of the tank line, resulting in an electric shock accident.

The present invention has been made to solve the above problems of the prior art, to effectively protect the operator from the safety accident by the high-voltage line pressurized during the operation of the vehicle for the maintenance of the vehicle running the railway line and the maintenance of the railway line operation To provide a new type of lane approach and alarm system with an access blocker (door lock) to fundamentally block the worker's access to the pressurized lane, It aims to do it.

The present invention to achieve the above object,

An antenna which is installed at an upper portion of the vehicle for rail line maintenance work and detects a pressurized state of the tram line; An antenna module unit for receiving the signal sensed by the antenna and amplifying the signal and sending the signal to the controller unit, and also checking the disconnection, short circuit, and short circuit of the antenna and the antenna itself and sending the result to the controller unit; A door opening / closing monitoring unit which is installed at an entrance door of a passageway in which a worker approaches a tram line, and checks whether the door is opened or closed and sends an open / close signal to a controller unit; An access monitoring unit for checking whether an operator has approached a vehicle for track maintenance work and sending an access signal to the controller unit; A controller unit for operating the alarm unit and the door lock unit according to signals received from the antenna module unit, the door open / close monitoring unit and the access monitoring unit; An alarm device unit operating according to a signal received from the controller unit, the alarm unit including a warning light and an alarm siren; And a door lock device which is operated according to a signal received from the controller unit and locks the door of the passage that the worker approaches the tank line when the tank line is in a pressurized state. Provide alarm and shutoff devices.

According to the present invention, when the tramline is under pressure, it can not only effectively alert the worker, but also ignores the alarm or does not recognize the alarm, and provides an access blocker for blocking the source at the source when the worker approaches the pressure line. Including a bright or noisy place, such as a work environment that can distract the worker has an excellent effect that can effectively ensure the safety of the worker.

In addition, the catenary approach alarm and blocking device according to the present invention can effectively prevent the electric shock accident by the catenary by improving the reliability of the device by configuring the circuit to minimize the failure of the monitoring device itself and to monitor the failure itself. have.

The present invention, which is installed on the top of the track maintenance operation vehicle, the antenna for sensing the pressurized state of the tram line; An antenna module unit for receiving the signal sensed by the antenna and amplifying the signal and sending the signal to the controller unit, and also checking the disconnection, short circuit, and short circuit of the antenna and the antenna itself and sending the result to the controller unit; A door opening / closing monitoring unit which is installed at an entrance door of a passageway in which a worker approaches a tram line, and checks whether the door is opened or closed and sends an open / close signal to a controller unit; An access monitoring unit for checking whether an operator has approached a vehicle for track maintenance work and sending an access signal to the controller unit; A controller unit for operating the alarm unit and the door lock unit according to signals received from the antenna module unit, the door open / close monitoring unit and the access monitoring unit; An alarm unit which operates according to a signal received from the controller unit and comprises an alarm lamp and an alarm siren; And a door lock unit which operates according to a signal received from the controller unit and blocks an operator's access by locking an entrance door of a passage approaching the tank line when the tank line is pressurized. The present invention relates to a catenary approach warning and blocking device.

According to a preferred embodiment of the present invention, three antennas are installed at equal intervals on an upper portion of the vehicle for rail line maintenance work, and each antenna is individually operated, and three antenna module parts are provided corresponding to each antenna. .

According to another preferred embodiment of the present invention, the controller is provided with two, respectively, by processing the signals received from the antenna module unit, the door opening and closing monitoring unit and the access monitoring unit, the alarm unit and the door lock unit separately The alarm device and the door lock are provided in correspondence with the respective controllers.

According to another preferred embodiment of the present invention, the antenna module unit and the controller unit are mounted together in a metal case to form a pressure sensor main body, and is installed in the track maintenance work vehicle.

According to another preferred embodiment of the present invention, the controller unit, an A / D converter for digitizing the signals received from the antenna module unit, the door opening and closing monitoring unit and the access monitoring unit, an MPU with a predetermined control program and The relay is configured to operate the alarm unit and the door lock unit according to the signal received from the MPU.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following examples are provided to illustrate the present invention, but the scope of the present invention is not limited to the examples described below.

First, referring to FIG. 2, the catenary approach warning and blocking device 100 according to the present invention transmits an antenna 21 that detects a pressurized state of the catenary 10 and a signal sensed by the antenna 21. Receives and amplifies it and sends it to the controller unit 23, and also checks the disconnection, short-circuit and short circuit of the antenna 21 and the antenna itself circuit and sends the result to the controller unit 23 to the antenna module unit 22 , The door opening and closing monitoring unit 40 is installed at the door of the passage that the operator of the track maintenance work vehicle approaches the tram line 10, and checks whether the door is opened or closed and sends an open / close signal to the controller unit 23. , The access monitoring unit 30, the antenna module unit 22, the door opening / closing monitoring unit 40, and the access monitoring unit to check whether the worker has approached the vehicle for track maintenance work and sends an access signal to the controller unit 23. According to the signal received from the unit 30 The controller unit 23 for operating the alarm unit 50 and the door lock unit 60 and the alarm unit unit for warning the pressurized state of the catenary 10 by operating according to the output signal of the controller unit 23 ( 50); And a door lock unit 60 which blocks an operator's access by locking an entrance door of a passage approaching the tank line 10 when the tank line 10 is in a pressurized state.

The antenna 21 serves as a kind of non-contact sensor that detects a pressurized state of the tramline, and provides a constant distance from the tramline 10 to an upper portion (roof) of a vehicle that runs a railroad track, for example, a track maintenance work vehicle. It is installed to maintain.

When the tramline 10 is pressed and the high voltage (AC25,000V) is applied, the pressurized signal is induced to the antenna 21, and the induced signal is sent to the antenna module unit 22, amplified, and then sent to the controller unit 23. . In addition, the antenna module unit 22 checks whether the antenna 21 is disconnected, short-circuit and short-circuited, and whether the antenna itself circuit is abnormal, and sends the result to the controller unit 23 at a predetermined time. That is, the antenna module unit 22 serves to process the signal detected from the antenna 21 and to check the abnormality of the antenna 21.

The door opening / closing monitoring unit 40 is installed at the doorway of the passage where the operator of the track maintenance work vehicle approaches the tram line 10, and continuously monitors whether the door is opened or closed, thereby controlling the opening / closing signal of the door. It serves to send. Vehicles for track maintenance work are typically provided with structures such as ladders used to climb to the top (roof) of the vehicle on one side, for example, in order for a worker to climb to the top (roof) of the track maintenance work vehicle. It must pass through the entrance door of the access passage to the top of the vehicle (the ladder provided on one side of the vehicle). When the door is opened by an operator, the door opening and closing monitoring unit 40 detects this and sends an opening signal to the controller unit 23.

The access monitoring unit 30 continuously monitors whether the worker has approached the vehicle for maintenance work or the railway line, and sends an access signal to the controller unit 23 when the worker's approach is detected. The access monitoring unit 30 may be installed at one or more places on the outer side or the upper portion of the vehicle for track maintenance work. For example, the access monitoring unit 30 may be installed in the form of an access sensor such as a footrest of the ladder provided on one side of the vehicle. If the worker presses the footrest to approach the upper part of the vehicle, the approach detection sensor detects this, and accordingly the worker approach signal is sent to the controller unit 23. On the other hand, the access monitoring unit 30 is preferably constituted by a double sensor (double construction of parts) in order to increase the reliability of the access monitoring.

As shown in FIG. 4, the controller unit 23 is an A / D converter 231 for digitizing signals received from the antenna module unit 22, the door opening and closing monitoring unit 40, and the access monitoring unit 30. And a relay 233 for operating the alarm unit 50 and the door lock unit 60 in accordance with a signal received from the MPU 232 having a predetermined control program and the MPU 232. .

Meanwhile, as illustrated in FIG. 3, the catenary approach warning and blocking device 100 according to the present invention may be installed at three locations at regular intervals on the upper portion (roof) of the vehicle for track maintenance work. It is preferable that the antennas 21 are individually operated, and the antenna module unit 22 is also provided with three corresponding to the respective antennas 22. By installing a plurality of antennas 21 and corresponding antenna module units 22 and allowing them to independently process the signals by sensing the pressurized state of the catenary 10, the vehicle moves along the curved line. In this case, it is possible not only to effectively detect whether the tank line is pressurized, but also when an abnormality such as a failure occurs in some antennas 21 and the antenna module 22, the catenary approach warning and blocking device 100 may operate normally. The reliability of the device can be improved.

In addition, the controller unit 23 is also configured in two to respectively process the signals received from the antenna module unit 22, the door opening and closing monitoring unit 40 and the access monitoring unit 30, respectively, each controller unit It is preferable to allow 23 to operate the alarm unit 50 and the door lock unit 60 separately to improve the reliability of the device.

On the other hand, the antenna module unit 22 and the controller unit 23 is mounted in a metal shielded case together to form a pressure sensor main body 20, and is installed inside the vehicle for the track maintenance operation.

The alarm unit 50 operated by the output signal of the controller unit 23 is composed of a warning light 501 and an alarm siren 502 (see Fig. 5). Alarm device 50 is also preferably configured to be operated by each controller unit 23 to correspond to each controller unit 23 (see Fig. 3).

The door lock unit 60 is for preventing a safety accident that occurs when an operator approaches the tank line 10 due to unconsciousness, illusion, or malfunction of the facility despite the state in which the tank line is pressurized. In the pressurized state, the access passage installed in the vehicle according to the output signal of the controller 23, for example, is provided on one side of the vehicle to forcibly lock the door installed in the ladder installed to climb to the upper portion of the vehicle. Do it. For example, even if the tank line is under pressure, if the worker does not recognize the alarm, which is the primary safety measure, or ignores the alarm and approaches the tank line, the operator is forced to close the door by forcibly closing the door in the aisle access to the tank line. To ensure safety of the worker secondarily.

Thus, the tramline approach alarm and blocking device 100 according to the present invention is the worker's surroundings by the alarm device unit 50 consisting of the warning light 501 and the alarm siren 502 as the primary safety means when the tramline is pressurized. Ventilation, and by forcibly closing the door on the catenary access passage by the door lock device 60, which is a secondary safety means, characterized in that the worker's access is fundamentally blocked.

On the other hand, the alarm unit 50 and the door lock unit 60 is configured to operate at the same time when the tram line 10 is in a pressurized state, or the pressurization of the tram line 10 by the antenna 21 is detected. In the case where the access alarm is first generated by the alarm unit 50, nevertheless, when the approach attempt of the operator is detected by the access monitoring unit 30, the door lock unit 60 is secondary It can also be configured as a sequential system to work.

Although the preferred embodiments of the present invention as described above in detail by the accompanying drawings, the present invention is not limited to the embodiments described herein, those skilled in the art and the spirit of the present invention and Obviously, various modifications and variations can be made without departing from the scope. Therefore, such modifications or variations will be said to belong to the claims of the present invention.

1 is a state diagram used in the alarm device according to the prior art.

Figure 2 is a block diagram of a catenary approach alarm and blocking device according to an embodiment of the present invention.

Figure 3 is a block diagram of a catenary approach alarm and blocking device according to another embodiment of the present invention.

4 is a configuration diagram of a controller unit according to an embodiment of the present invention.

5 is a block diagram of the alarm unit according to an embodiment of the present invention.

DESCRIPTION OF THE RELATED ART [0002]

10: tram line 20: pressure sensor main body

21: antenna 22: antenna module unit

23: controller

231: A / D converter 232: MPU

233: relay

30: access monitoring unit 40: door opening and closing monitoring unit

50: alarm unit

501: warning lights 502: alarm siren

60: door lock unit

100: catenary approach alarm and blocking device

Claims (5)

An antenna which is installed at an upper portion of the vehicle for rail line maintenance work and detects a pressurized state of the tram line; An antenna module unit for receiving the signal sensed by the antenna and amplifying the signal and sending the signal to the controller unit, and also checking the disconnection, short circuit, and short circuit of the antenna and the antenna itself and sending the result to the controller unit; A door opening / closing monitoring unit which is installed at an entrance door of a passageway in which a worker approaches a tram line, and checks whether the door is opened or closed and sends an open / close signal to a controller unit; An access monitoring unit for checking whether an operator has approached a vehicle for track maintenance work and sending an access signal to the controller unit; A controller unit for operating the alarm unit and the door lock unit according to signals received from the antenna module unit, the door open / close monitoring unit and the access monitoring unit; An alarm unit which operates according to a signal received from the controller unit and comprises an alarm lamp and an alarm siren; And And a door lock device that operates according to a signal received from the controller and locks the door of a passage approaching the tank line by the worker when the tank line is pressurized. Approach alarm and blocking device. The method according to claim 1, Three antennas are installed at equal intervals in the upper portion of the vehicle for line maintenance work, and each antenna is individually operated, and three antenna module parts are provided corresponding to each antenna. Device. The method according to claim 2, The controller is provided with two controllers to process the signals received from the antenna module unit, the door opening and closing monitoring unit and the access monitoring unit, respectively to operate the alarm unit and the door lock unit separately, the alarm unit and the door lock unit The vehicle line approach alarm and blocking device, characterized in that the two provided in correspondence with each controller unit. The method according to claim 1, The antenna module unit and the controller unit is mounted in a metal case together to form a pressure sensor main body, and the front line access alarm and blocking device, characterized in that installed in the vehicle for the line maintenance work. The method according to claim 1, The controller unit may include an A / D converter for digitizing signals received from the antenna module unit, the door open / close monitoring unit and the access monitoring unit, an MPU with a predetermined control program, and an alarm device unit according to the signal received from the MPU. Catenary access warning and blocking device, characterized in that consisting of a relay to operate the door lock.

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