KR20150144826A - The safety systems and operating methods for energized line - Google Patents

Abstract

The present invention relates to a safety system for preventing various accidents occurring on a super high-voltage charging circuit. The safety system comprises: a first detection unit including a detection sensor which measures the distance of an object approaching the charging circuit, and a motion sensor which identifies a motion of the object; a second detection unit including a camera which records the surroundings of the charging circuit and emits light, and a detection module which measures the ambient temperature and humidity; a warning unit including a speaker which propagates sound to the object approaching the charging circuit, and a warning light which emits light; and a control device integrally including a control unit which is circuit-connected to the first and second detection units and the warning unit, and a display which sets a detection area. According to the present invention, at the time of operations on a live wire for checking, repairing, and cleaning a super high-voltage charging circuit or a support insulator, warning is given for a maximum access distance. An electric shock accident caused by carelessness is prevented, and the public and animals are controlled to enter and exit while lives and properties are protected.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety system and a method for operating the same,

More particularly, the present invention relates to a safety system and method of operating a charging circuit, and more particularly, to a charging system for a charging circuit, and more particularly, The present invention relates to a safety system and a method of operating a charging circuit for protecting persons and property by controlling the access of other persons or animals, as well as preventing electric shock accidents.

Normally, when the pressure is higher than the predetermined value, it is lighted by a flashover even if it approaches the charging path. Flashover is determined by the magnitude and distance of the voltage. In other words, it is not allowed to enter the flashover when approaching the charging path. However, since various operations are performed in live transmission work or live wire proximity work in transmission power distribution work or substation work, Do not enter the range that adds the flashover distance to the distance considering the dimensions of the area or the working tools.

As is well known, in case of using a tool for live wire work in the work for special high-voltage charging circuit, in accordance with Rule 321 (1) 8 of the Industrial Safety and Health Standard The approach distance must be maintained. However, in reality, workers are not able to deepen their awareness of the approach distance, and they are simply checking the live status with a portable detector. Therefore, it is urgently required to develop a safety accident prevention system by detecting the approaching distance of the operator to the charging path and guiding the approach distance.

For example, in Korean Patent Registration No. 10-0888951 entitled "Multi-function switchboard with alarm device ", the human body detection and processing unit 12 is configured to output an identification number code of the switchboard, (121-1 to 121-n) connected to the human body detection and processing unit (12) provided for each of the human body detection units (10-1) to (10-n); Real-time photographing information, and transmits a remote input signal from the control center 30 to the power-distribution-unit-side wireless communication units 121-1 to 121-n by wireless communication with the power- And a control center integrated wireless communication unit 123 for transmitting a control signal from the human body detection and processing unit 12 to the control center integrated wireless communication unit 123. The control unit 123 outputs one or more of a low frequency magnetic field wave and a high power ultrasonic wave, And an animal control unit (19) for controlling the animal.

According to Korean Patent Registration No. 10-1076772 entitled " Device for warning danger of electrical shock in a water / switchboard using a composite sensor ", it is possible to detect an approach distance of an object, detect the movement of the object, A sensor unit for outputting information; And determines an alarm operation based on the motion information, calculates an approach distance between an object and an ESD apparatus and an object, based on the object detection information at the time of an alarm operation, And a main control unit for recognizing the risk of electric shock by performing an alarm, wherein the main control unit comprises: a main control unit for receiving a detection distance setting signal and an operation stop and return signal transmitted by a remote controller, A remote control receiver provided to the unit; And a battery for supplying driving power to the water / electric panel danger warning device for a certain period of time during a power failure.

The former and the latter propose the same configuration in which an ultrasonic sensor and a heat sensing (infrared) sensor for detecting a human body or an animal are mounted on the switchboard to prevent an electric shock accident by warning the approaching distance to the switchboard. However, the ultrasonic sensor and the heat sensor have a technical limit which can not be used indoors because the degree of reaction varies depending on ambient temperature and humidity. Therefore, there is a high possibility that the function of detecting the human body or animal approaching the switchboard may fail to cause a malfunction. First of all, it is necessary to calculate the approach distance based on the sensed signal to generate a warning. However, there is a serious problem that the calculated distances are so large that the worker is liable to suffer an electric shock accident. In addition, a large number of workers (human bodies) can not be detected individually, and the operator and the animal can not be distinguished from each other, so that the alarm function is very limited. In addition, the ultrasonic sensor and the heat sensor are very narrow in the sensing area, and therefore, there is a problem that the installation work and the additional cost are incurred because a plurality of sensors must be mounted around the switchboard.

Korean Patent Registration No. 10-0888951 entitled "Multifunctional Switchboard with Alarm Device" Korean Patent Registration No. 10-1076772 entitled " Hazard warning device for water /

Accordingly, it is an object of the present invention to fundamentally solve the above-described conventional problems, and it is an object of the present invention to provide a method and apparatus for detecting a temperature and humidity around a charging path by correcting a sensing area of a sensing sensor, It is possible to detect a large number of objects individually by a motion sensor which identifies the motion of an object and to discriminate between a person and an animal, As the sensing sensor and motion sensor can freely flow, it is possible to detect all around the charging path with only a small quantity, thus providing a safety system and operating method for the charging circuit which can greatly shorten the installation time and cost I have a purpose to do.

According to an aspect of the present invention, there is provided a safety system for preventing various accidents occurring on a special high-voltage charging path, the safety system comprising: a sensor for measuring a distance of an object approaching the charging path; A first sensing unit having a motion sensor for identifying a motion of the first sensor; A second sensing unit including a camera for photographing the periphery of the charging passage and irradiating light, and a sensing module for sensing the temperature and humidity of the surroundings; A warning unit having a speaker for emitting sound to an object approaching the charging path and a warning light for emitting light; A control unit connected to the first and second sensing units and the warning unit in a circuit, and a display unit for setting a sensing area.

The sensing sensor of the first sensing unit according to the present invention receives the infrared rays from the sensing region and tracks the sensitivity of the received infrared rays to measure the distance of the object approaching the region.

In addition, the motion sensor of the first sensing unit according to the present invention is characterized in that the set sensing region is divided into cells, and the movement of an object existing in the region is identified by tracking a change in height of each cell.

In addition, the camera of the second sensing unit according to the present invention keeps the normal power saving mode and continuously tracks an object approaching the charging path.

The sensing module of the second sensing unit according to the present invention detects the temperature and humidity around the charging path in real time to correct the sensing area of the sensing sensor.

Further, the speaker of the warning part according to the present invention propagates a voice or a buzzer sound according to the distance of the approaching object in stages, and the warning light flashes various colors of light.

In addition, the control unit of the control unit according to the present invention is characterized in that when an object approaches the charging passage or an accident occurs, the control unit is connected to the communication network to receive the notification to the nearby fire department and to transmit a message to the manager.

According to another aspect of the present invention, there is provided a method for operating a safety system for a charging passage according to claim 1, wherein: the manager mounts the first and second sensing units, the warning unit and the control unit, Setting a sensing area on the display; Measuring the ambient temperature and humidity of the charging path to correct the measured distance of the sensing sensor, and then measuring the distance of the approaching object; A motion sensor identifying the movement of the measured object to distinguish between the person and the animal, and then continuously tracking the moving object; Emitting light to the beacon with information calculated by the sensing sensor and the motion sensor, and then propagating the voice or buzzer sound to the speaker; And when the object reaches the access limit distance, the control unit receives the notification from the nearby fire department, and then transmits a message to the manager.

At this time, the step according to the present invention is characterized in that when the identified object is a person, the recorded voice is propagated by the percentage of the approach limit distance, and when the identified object is the animal, the buzzer sound of 120 to 150 decibels is propagated.

It should be understood, however, that the terminology or words of the present specification and claims should not be construed in an ordinary sense or in a dictionary, and that the inventors shall not be limited to the concept of a term It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be properly defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

INDUSTRIAL APPLICABILITY As described in the above construction and operation, the present invention provides the following advantages.

First, by real-time detection of temperature and humidity around the charging path and correcting the sensing area of the sensing sensor, the distance of the approaching object can be detected precisely at all times regardless of the climate change.

Second, a motion sensor that identifies the motion of an object can detect a large number of objects individually and distinguish between a human and an animal, so that a warning that is most appropriate for a situation can be performed.

Third, as the sensor and motion sensor can freely flow, it is possible to detect all around the charging path with a small quantity, which can greatly shorten installation time and cost

Fourth, by continuously tracking the approaching object, it can be used as important information to identify the cause of the accident and to establish countermeasures, and it is possible to safely keep the charge path from the immoral external person.

Fifth, the numerical risk can be propagated by the voice according to the distance of the approaching object, and the light of various colors can be blinked to concentrate the worker's attention.

Sixth, when a control unit is connected to a communication network and an object is approaching a charging path or an accident occurs, it immediately receives a report to a nearby fire department and sends a message to the manager so that the first response can be quickly processed.

Seventh, there is an economical advantage of minimizing the power consumption due to the motion sensor which keeps the camera in the power saving mode in normal condition and detects the movement of the object by the height difference of simple pixels.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram generally showing a system according to the present invention; FIG.
2 is a view showing the entire first and second sensing units according to the present invention.
3 and 4 are views showing details of a first sensing unit according to the present invention;
5 to 7 are perspective views showing a state where a system according to the present invention is applied.

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

One aspect of the present invention relates to a safety system for preventing various accidents occurring on a special high-voltage charging circuit, and includes a first sensing unit 10, a second sensing unit 20, a warning unit 30, a control unit 40 ) As the main constituent of the safety system for the charging circuit. The safety system of the present invention is intended to prevent an accidental electric shock by alerting an access limit distance during a live wire work for checking, repairing, and cleaning a special high-voltage charging electric line or a supporting insulator. On the other hand, the object referred to in the present invention refers not to all objects without motion but to people and animals that emit infrared rays and flow by themselves. Such a safety system includes an outdoor type substation 50, a tower type substation 60, and a tower type substation 60 as shown in FIG. 5 corresponding to Rule 321 (1) 8 7 to the enclosed switchboard 70 as shown in FIG.

The first sensing unit 10 according to the present invention includes a sensing sensor 11 for measuring a distance of an object approaching a charging path and a motion sensor 15 for identifying a motion of an object. The first sensing unit 10 is electrically connected to the controller 40 as shown in FIG. 1, and one or more sensors are mounted around the charging circuit. As shown in FIG. 2A, the first sensing unit 10 includes a support plate 16 for guiding mounting and demounting around the charging path, and a motion unit 17 rotatable in a biaxial direction is installed in the support plate 16 . That is, since the motion sensor 17 and the motion sensor 15 are integrally provided in the motion unit 17, the area for sensing the periphery of the charge transfer path can be enlarged and can be mounted regardless of installation conditions .

At this time, the detection sensor 11 according to the present invention receives the infrared rays from the set sensing area and tracks the sensitivity of the received infrared rays to measure the distance of the object approaching the area. The detection sensor 11 comprises a Fresnel lens for condensing light, an infrared filter for passing only the infrared region of the condensed light, and an element for sensing the amount of infrared ray passing therethrough and outputting a voltage. The detection sensor 11 constitutes an AMP circuit for amplifying and stabilizing the output voltage, and has a schmitt trigger circuit for preventing hysteresis and removing unstable voltage due to noise. Here, the digital variable resistor is configured in the AMP circuit, and the distance of the detection area can be set as desired by adjusting the amplification amount of the output voltage.

For example, it is assumed that the sensing sensor 11 is in a state in which 5 V is applied and a sensing region is disposed 5 m in front of the sensing region. That is, when no object emitting infrared rays is present in the sensing area as shown in FIG. 3A, 0V is output. When the object enters the sensing area 5m away as shown in FIG. 3B, 2.3V is output as shown in FIG. V. Here, since the output voltage of the detection sensor 11 changes depending on the surrounding conditions such as day and night and season and climate, the sensing area also changes. Therefore, the amount of amplification of the output voltage is controlled through the digital variable resistor on the basis of the signal of the detection module 25, which will be described later, to prevent malfunction and always maintains the sensing area band with a constant distance.

In addition, the motion sensor 15 according to the present invention divides a set sensing area by a cell and tracks a change in the height of each cell to identify the movement of an object existing in the area. The motion sensor 15 is constituted by a stereo camera capable of three-dimensionally photographing an object. The motion sensor 15 real-time senses the position and the quantity of the object in the area only by the height information using the pixel difference. That is, in the region where the floating object and the fixed object are mixed, the reason why the maximum height changes is changed by the moving object.

For example, if the height of the cell does not change for a long period of time as shown in FIG. 4A, the corresponding cell is detected as a ground or fixed object (not shown), and if the height of the cell is changed as shown in FIG. Here, since the number of cells occupied by the fluid object is limited, the number of objects is detected by calculating the size and the number of the changed cells. Since the motion sensor 15 simply tracks the change of the peak height using the pixel deviation of the image without storing the image, the data processed by the CPU is extremely low, so that the power consumption can be minimized.

The second sensing unit 20 according to the present invention includes a camera 21 for photographing the surroundings of the charging path and irradiating light, and a sensing module 25 for sensing ambient temperature and humidity. The second sensing unit 20 is electrically connected to the controller 40 as shown in FIG. 1, and one or more sensors are mounted around the charging circuit. The second sensing unit 20 has the same configuration as the first sensing unit 10. The second sensing unit 20 includes a supporting plate 26 for guiding the mounting and demounting around the charging path, And includes a motion unit 27 that can be rotated in the biaxial direction. That is, since the camera 21 and the sensing module 25 are integrally provided in the motion unit 27, the area for sensing the periphery of the charging passage can be enlarged, and the camera 21 can be mounted without regard to the installation condition.

At this time, the camera 21 according to the present invention keeps the normal power saving mode and continuously tracks an object approaching the charging path. The camera 21 photographs an object approaching the charging path, such as a black box, and serves as an important information for identifying the cause of the accident and establishing countermeasures.

For example, when the sensing sensor 11 detects an object approaching the charging path, the mode is switched from the power saving mode to the photographing mode. When the position of the object is identified by the motion sensor 15, it is tracked and captured in the direction in which the object is positioned through the motion unit 27, and the photographed image is stored. Here, the camera 21 has a built-in light for illuminating the light, so that it is possible to take a picture with a clear image quality at night. As described above, the camera 21 does not always photograph the sensing area, but only consumes power when the object is approaching.

In addition, the sensing module 25 according to the present invention detects the temperature and humidity around the charging path in real time to correct the sensing area of the sensing sensor 11. The sensing module 25 incorporates a temperature sensor and a humidity sensor integrally, and corrects the sensing area of the sensing sensor 11 so that the distance of the approaching object can be always accurately sensed regardless of the climate change.

For example, since the output voltage of the detection sensor 11 is extremely low in winter or at night when the temperature is low, the amplification amount is increased through the variable resistor. In summer or during the high temperature, the output voltage of the detection sensor 11 becomes high. Lower it. In addition, as the humidity increases due to rain or snow, the refractive index of the infrared ray also increases, so that the range of the recognizable voltage is widened. On the contrary, when the humidity is lowered, the range of the recognizable voltage is narrowed. Therefore, it is possible to prevent the malfunction by maintaining the output voltage of the sensing sensor 11 and the sensing voltage range, and to maintain the sensing area of a constant distance at all times.

In addition, the alarm unit 30 according to the present invention includes a speaker 31 for propagating sound to an object approaching a charging path, and a warning light 35 for emitting light. 1, the alarm unit 30 is provided with at least one speaker 31 and a warning light 35 at the periphery of the charging path. The alarm unit 30 is provided with a warning signal to an object approaching by the first and second sensing units 10 and 20, do. The loudspeaker 31 is a loudspeaker capable of amplifying and propagating the bands of low and high frequencies, and propagates the warning sound set by the control unit 40. [ The warning light 35 is a lamp having a plurality of LEDs, and emits warning light set by the control unit 40.

At this time, the speaker 31 according to the present invention propagates voice or buzzer sounds according to the distance of the approaching object in stages, and the beacon light 35 blinks in various colors. The speaker 31 propagates the recording sound stored in the control unit 40 with respect to the object to be accessed, and the warning light 35 blinks the warning light against the approaching object.

For example, when an object approaches the sensing area, it primarily flashes a beep sounding a warning and blinks a red light. Then, when the object approaches the charging path, a guidance sound is continuously transmitted to notify the distance and attention between the approach limit distance and the object from the second or third level. Then, when the object reaches the approach limit distance, it propagates the guidance voice and the buzzer of the high-frequency band indicating that it is located at the limit distance and recognizes the seriousness.

The control unit 40 according to the present invention includes a control unit 41 connected in circuit with the first and second sensing units 10 and 20 and the warning unit 30 and a display 45 ). The control unit 40 is connected to the first and second sensing units 10 and 20 and the warning unit 30 to control the operation of the first and second sensing units 10 and 20. The control unit 40 includes a control unit 41 and a display 45 .

The control unit 41 receives a signal from the first and second sensing units 10 and 20 and outputs a signal to the warning unit 30 and outputs the signal to the first and second sensing units 10 and 20, . The display 45 displays the operating state of the first and second sensing units 10 and 20, and allows the user to set a sequence having a button or a touch panel on the front surface. The control unit 40 further includes a built-in battery for supplying power to the first and second sensing units 10 and 20 and the warning unit 30 and a charging module for charging the power of the battery by receiving external power do.

At this time, the control unit 41 according to the present invention is connected to the communication network so as to receive a report to a neighboring fire department and to send a message to the manager when an object approaches or is accidentally charged. The control unit 41 can be connected to a communication network by incorporating communication modules such as LAN, WIFI, WCDMA, HSDPA, LTE and Wibro.

For example, when an object approaches the charging path, information received from the first and second sensing units 10 and 20 is transmitted to the web server. The web server identifies the unique number of the pre-stored control unit 41, grasps the area, and transmits a text message to the administrator. Then, when the object reaches the approach distance, report to the nearest fire station in the area. Here, when the object is moved away from the approach limit distance within one to three minutes by the warning unit 30, the report is automatically canceled. In other words, only if the object does not move away from the approach distance for 1 to 3 minutes, Therefore, even if an electric shock accident occurs due to carelessness, the damage can be minimized by prompt notification.

As another aspect of the present invention, a method for operating a safety system for a charging passage is proposed. That is, a method of operating the system based on the safety device for the charging passage will be described in detail with reference to FIG. The following description is based on the above-described embodiment.

First, the manager mounts the first and second sensing units 10 and 20, the warning unit 30, and the control unit 40 around the charging path. The first and second sensing units 10 and 20 and the warning unit 30 are required to sense an object approaching the charging path and to place a warning at a relatively high position, (40) is preferably mounted in the box so as to be hermetically sealed from the outside. The administrator then sets the sensing area on the display 45. For example, a position to be sensed by the sensing sensor 11, the motion sensor 15, the camera 21 and the sensing module 25 is designated in front of and behind the charging path, and a sensing area of 10 m from the charging path is set .

Then, the sensing module 25 measures the ambient temperature and humidity of the charging passage and corrects the measured distance of the sensing sensor 11. For example, in winter or at night when the temperature is low, the amplification amount is increased through the variable resistor of the detection sensor 11, and the amplification amount is decreased in summer or during the high temperature. In addition, when the humidity increases due to rain or snow, the voltage range that can be recognized is widened. On the other hand, when the humidity is low, the voltage range that can be recognized is narrowed. When the correction of the detection sensor 11 is completed, the distance of the approaching object is measured in real time and information is transmitted to the control unit 40. Here, the motion sensor 15 identifies the movement of the measured object to distinguish between the person and the animal, and then continuously tracks the moving object.

Then, the light is emitted to the warning light 35 by the information calculated by the detection sensor 11 and the motion sensor 15, and then the sound or buzzer sound is propagated to the speaker 31. For example, when an object approaches the sensing area, it primarily flashes a beep sounding a warning and blinks a red light. Then, when the object approaches the charging path, a guidance sound is continuously transmitted to notify the distance and attention between the approach limit distance and the object from the second or third level. Then, when the object reaches the approach limit distance, it propagates the guidance voice and the buzzer of the high-frequency band indicating that it is located at the limit distance and recognizes the seriousness.

At this time, if the identified object is a person, the recorded voice is propagated by the percentage of the approach distance, and when it is an animal, the buzzer sounds 120 to 150 decibels. For example, when a person approaches 300% of the approach distance, it will propagate the announcement voice "Please note that you entered within 300% of the distance between the live part and the hazardous area." When approaching 200% of the approach distance, "Approximately 200% of the dangerous limit distance is within the range of the live part. Please note." When approaching the approach distance, the warning sound is " .

Then, when the object reaches the approach limit distance, the control unit 41 receives the report to the nearby fire station, and then sends a message to the manager. For example, in spite of the warning sound, if the object does not move within a distance of 1 ~ 3 minutes from the approach limit distance, notify the nearest fire department in the area and send a text message to the manager to notify the danger.

As described above, the present invention alleviates an electric shock accident caused by carelessness by alerting an access limit distance during a live operation for checking, repairing, and cleaning a special high-voltage charging circuit or a supporting insulator, To protect people and property.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: first sensing unit 11: sensing sensor
15: Motion sensor 16, 26: Support plate
17, 27: Motion unit 20: Second sensing unit
21: camera 25: detection module
30: Warning part 31: Speaker
35: a warning lamp 40:
41: Control unit 45: Display
50, 60: Substation 70: Switchboard

Claims (9)

A safety system for preventing various accidents occurring on a special high-voltage charging path, comprising:
A first sensing unit including a sensing sensor for measuring a distance of an object approaching the charging path and a motion sensor for identifying a motion of the object;
A second sensing unit including a camera for photographing the periphery of the charging passage and irradiating light, and a sensing module for sensing the temperature and humidity of the surroundings;
A warning unit having a speaker for emitting sound to an object approaching the charging path and a warning light for emitting light;
And a control unit integrally including a control unit connected in circuit with the first and second sensing units and the warning unit, and a display for setting a sensing area. The method according to claim 1,
Wherein the sensor of the first sensing unit receives the infrared rays from the sensing area and tracks the sensitivity of the received infrared rays to measure the distance of the object approaching the area. The method according to claim 1,
Wherein the motion sensor of the first sensing unit divides the set sensing area by a cell unit and tracks a change in height of each cell to identify movement of an object existing in the area. The method according to claim 1,
Wherein the camera of the second sensing unit continuously photographs an object approaching the charge transfer path while keeping the normal power saving mode. The method according to claim 1,
Wherein the sensing module of the second sensing unit detects the temperature and humidity around the charging path in real time to correct the sensing area of the sensing sensor. The method according to claim 1,
Wherein the speaker of the warning section propagates a voice or a buzzer sound in accordance with the distance of the approaching object in a stepwise manner, and the warning light flashes a colorful color light. The method according to claim 1,
Wherein the control unit of the control unit is connected to the communication network so as to receive a notification from a neighboring fire department and to send a message to the manager when an object approaches or incurs an accident. A method for operating a charging system safety system according to claim 1, the method comprising:
The manager mounting the first and second sensing units, the warning unit and the control unit in the vicinity of the charging passage, and then setting the sensing area on the display;
Measuring the ambient temperature and humidity of the charging path to correct the measured distance of the sensing sensor, and then measuring the distance of the approaching object;
A motion sensor identifying the movement of the measured object to distinguish between the person and the animal, and then continuously tracking the moving object;
Emitting light to the beacon with information calculated by the sensing sensor and the motion sensor, and then propagating the voice or buzzer sound to the speaker;
And when the object reaches the access limit distance, the control unit receives the notification from the nearby fire department, and then transmits a message to the manager. 9. The method of claim 8,
Wherein said step comprises transmitting a sound recorded in steps of the approach limit distance in the case where the identified object is a person, and transmitting a sound of 120 to 150 decibels in the case of an animal. Way.

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