JP2017122948A - Monitoring system of approaching to charge unit, and monitoring method of approaching to charge unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform safe and efficient yard work conducted in an electric power station.SOLUTION: One or more camera-mounted sensor devices 20 are provided whose directive range is set in a boundary surface vicinity 8 between a work section 7 set in a yard 2 of an electric power station and the outside of the work section 7 where a charge unit is present. A monitoring device 10 determines whether an operator 4 deviates from the work section 7 based on a detection signal of a passive sensor 204 of the camera-mounted sensor device 20, and outputs an alarm when determining the deviation. The monitoring device 10 displays a video of a camera 205 of the camera-mounted sensor device 20 while receiving from a user an instruction input for adjusting the directive range, and transmits a control instruction according to the instruction input to the camera-mounted sensor device 20. The camera-mounted sensor device 20 changes the directive range of the passive sensor 204 in accordance with the control instruction. The operator 4 carries an alarm terminal 30, and the monitoring device 10 causes the alarm terminal 30 to output an alarm when the operator deviates from the work section.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a charging unit approach monitoring system and a charging unit approach monitoring method.

  Patent Document 1 describes a hot-line approach warning system configured to devise a method for detecting that a worker has gone out of the safety area and to ensure safety in hot-line work. Has been. The live line approach warning system is a case where a warning is given when a live line installed in the transmission line tower is approaching outside the safe area, and has a reception area that forms a safe area, and receives position information, A detector with a flag that detects whether or not position information can be received and transmits the detection result is provided. When the position information becomes unreceivable, the position transmitter has a safety area. A warning signal is transmitted to the position transmitter by judging that the vehicle has gone out.

  It describes a worker management system configured for the purpose of enabling workers working near hazardous areas and obstacles to work safely. The worker management system includes an IC tag, a means for sensing the IC tag and acquiring the distance, a sensor device having a data transmission / reception means, and a management personal computer having a data transmission / reception means with the sensor device. The management personal computer acquires the three-dimensional arrangement data of the fixed type sensor device or the fixed type IC tag, acquires the distance data between the IC tag and the sensor device, and uses these data as a reference for the mobile type IC. The position of the tag or mobile sensor device is specified.

JP 2007-140675 A JP 2007-52671 A

  Various electrical facilities such as transmission lines, transformers, and generators exist in electrical stations such as substations and power plants. The electrical equipment is connected to a bus composed of a predetermined bus system (single bus system, double bus system, etc.) via a switch (disconnector, circuit breaker, etc.).

  When working on electrical facilities such as inspection and repair at electrical stations, work is usually carried out after partial power outages in the work area. There is a possibility of approaching. Therefore, conventionally, countermeasures such as placing a supervisor who monitors the worker on the site and marking a dangerous zone and a danger flag have been taken.

  However, there are a lot of similar electrical facilities in the electric station, and it is difficult to judge the inside and outside of the work section at the complicated structure, and it is not always perfect only by monitoring by the human system. Also, the danger zone and the danger flag must be installed close to the live parts by the worker.

  The hot line approach warning system described in Patent Document 1 is to install a flagged detector that demarcates a safety area in the transmission line tower, and detects that the worker has gone out of the safety area. Detectors with flags must be installed close to live parts by workers. In addition, it is necessary to provide a large number of flagged detectors in order to accurately determine the inside / outside of the work section, and it is difficult to apply in an environment where the structure is complex, such as a substation.

  Also, a live line approach warning device that emits a sound or light to warn when approaching a charging unit is commercially available (for example, “Hotline Warning Device (HXW-6, manufactured by Hasegawa Electric Co., Ltd.) (registered trademark)”. HX-6) ”etc.), the object is limited to a high voltage class, and cannot be applied to a special high voltage charging unit having a large ground capacitance. Although monitoring with a surveillance camera is also conceivable, in a complicated structure such as a substation, there are many blind spots and it is difficult to ensure monitoring accuracy.

  The present invention has been made in view of such a background, and a charging unit approach monitoring system capable of safely and efficiently performing work such as inspection and repair of electrical equipment performed at an electric power station, and charging. The purpose is to provide an approach monitoring method.

  One aspect of the present invention for achieving the above object is a charging unit approach monitoring system for monitoring an approach of a worker to a charging unit on the premises of an electric power station, and a work section set on the premises, One or more passive sensors in which a directivity range is set in the vicinity of the boundary surface between the outside of the work section where the charging unit exists, and the communicably connected to the passive sensor, and output from the passive sensor A monitoring device that receives a detection signal, wherein the monitoring device determines whether or not the worker has departed from the work section based on the detection signal received from the passive sensor; and The charging unit approach detection unit includes a warning output unit that outputs information indicating a warning when it is determined that the worker has departed from the work section.

  According to the present invention, the passive sensor is installed at the site so that the directivity range is near the boundary between the inside and outside of the work section, thereby accurately monitoring the approach of the worker to the charging unit during the work on the premises of the electric station. Can be realized easily and safely. Further, due to the characteristics of the passive sensor, even when the structure is complicated, it is possible to reliably detect the approach of the worker to the charging unit. Moreover, since this invention is a mechanism which detects an operator with a passive sensor, it can apply widely to the various charging parts containing a special high voltage | pressure etc.

  Another aspect of the present invention is the charging unit approach monitoring system, wherein the passive sensor, a camera that outputs a video signal that captures an image including a directivity range of the passive sensor, and the directivity range of the passive sensor are determined. A sensor device with a camera having a directional range control mechanism to change and a communication device that communicates with the monitoring device, wherein the monitoring device outputs an output device for displaying the video, and an instruction input for adjusting the directional range from a user An input device for receiving, and a directivity range adjusting unit that transmits a control instruction according to the instruction input to the sensor device with camera, wherein the sensor device with camera receives the control instruction and receives the control instruction The directivity range of the passive sensor is changed according to the above.

  ADVANTAGE OF THE INVENTION According to this invention, after installing a sensor apparatus with a camera in the field, the directivity range of a passive sensor can be adjusted safely and easily, confirming an image | video from the place remote from the charging part.

  Another aspect of the present invention is the charging unit approach monitoring system, including a warning terminal having a communication device that communicates with the monitoring device, and a warning output unit that outputs information indicating a warning. A warning terminal control unit that transmits an output instruction of information indicating a warning to the warning terminal when detecting that the worker has deviated from the work section, and the warning terminal receives the warning output instruction Then, information indicating a warning is output.

  According to the present invention, for example, when a worker or a monitor carries a warning terminal, when the worker deviates from the work section, the worker or the monitor can be notified quickly and reliably.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, it is possible to safely and efficiently perform operations such as inspection and repair of electrical equipment performed at an electrical station.

1 is a diagram illustrating a schematic configuration of a charging unit approach monitoring system 1. FIG. It is an example of the warning terminal 30 carried by the worker 4 and the monitor 6. It is a figure which shows the main hardware with which the monitoring apparatus 10 is provided. It is a figure which shows the main functions with which the monitoring apparatus 10 is provided. It is a figure which shows the main hardware with which the sensor apparatus 20 with a camera is provided. It is a figure which shows the main functions with which the sensor apparatus 20 with a camera is provided. It is a figure which shows the main hardware with which the warning terminal 30 is provided. It is a figure which shows the main functions with which the warning terminal 30 is provided. 3 is an example of a directivity range adjustment screen 90. It is a flowchart explaining the charge part approach monitoring process S1000.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a schematic configuration of a charging unit approach monitoring system 1 described as an embodiment below. The charging unit approach monitoring system 1 checks the electrical equipment 3 (transmission lines, transformers, switches, generators, lightning arresters, protective relays, voltage regulators, etc.) in the premises 2 of the power plant such as a power plant or substation. The approach of the worker 4 who performs on-site work such as maintenance and repair to the charging unit is monitored.

  A section (hereinafter referred to as a work section 7) where the worker 4 performs work is set in the premises 2 of the electric station, and in order to prevent an electric shock accident, a power failure operation is performed on the work section 7 in advance so that the charged state is maintained. Canceled. On the other hand, there is a charging unit outside the work section 7, and it is prohibited for the worker 4 to deviate from the work section 7 (close to the charging section) for safety.

  As shown in the figure, the charging unit approach monitoring system 1 includes one or more cameras including a passive sensor 204 whose pointing range is set in the vicinity 8 (including the boundary surface) of the inner and outer boundary surfaces of the work section 7. The monitoring device 10 that monitors whether or not the worker 4 has deviated from the work section 7 based on a detection signal described later output from the attached sensor device 20 and the passive sensor 204, and issues a warning when the worker 4 deviates from the work section 7, The alarm terminal 30 carried by the operator 4 or the supervisor 6 who monitors the operator 4 is provided, and the communication means 5 which connects these so that communication is possible.

  The communication means 5 is a wired or wireless communication means, for example, a relay device compliant with a predetermined communication standard such as a wired LAN (Local Area Network), USB (Universal Serial Bus), wireless LAN, Bluetooth (registered trademark), etc. It is. Note that the communication unit 5 is not an essential configuration, and for example, the monitoring device 10, the camera-equipped sensor device 20, and the warning terminal 30 may directly communicate with each other. Further, the communication means 5 may connect these devices (the monitoring device 10, the camera-equipped sensor device 20, and the warning terminal 30) and a device outside the electric station such as a communication device at the central control station so that they can communicate with each other. Good. In that case, information held by the charging unit approach monitoring system 1 (information such as deviation from the work section 7 of the worker 4) may be provided to an external device via the communication unit 5.

  In addition to the passive sensor 204, the camera-equipped sensor device 20 includes a camera 205 that captures an image including a directional range of the passive sensor 204 (a range in which human presence can be detected), and a directional range control mechanism that controls the directional range of the passive sensor 204. 206 and the like. The directivity range control mechanism 206 communicates with the monitoring device 10 via the communication unit 5, transmits a video shot by the camera 205 to the monitoring device 10, and a passive sensor according to a control instruction sent from the monitoring device 10. Control of the directivity range 204 and the shooting range of the camera 205 is performed.

  The camera-equipped sensor device 20 is installed, for example, in the premises 2 of the electric station prior to the premises work. The camera-equipped sensor device 20 may be constantly installed in the premises 2. The camera-equipped sensor device 20 is adjusted and installed at a predetermined position on the premises 2 so that the passive sensor 204 can reliably detect the worker 4 when it enters the vicinity 8 of the boundary surface of the work section 7. The In the figure, two camera-equipped sensor devices 20 are provided, but the number of camera-equipped sensor devices 20 is not limited. In addition, a plurality of work sections 7 can be set on the campus 2 at the same time. In this case, for example, the number of camera-equipped sensor devices 20 necessary for monitoring the vicinity 8 of each boundary surface of each work section 7 is provided on the campus. 2 is installed.

  The worker 4 and the supervisor 6 adjust the directivity range of the passive sensor 204 by operating the monitoring device 10 while confirming an image captured by the camera 205 of the camera-equipped sensor device 20 displayed on the monitoring device 10. .

  FIG. 2 shows an example of the warning terminal 30 carried by the worker 4 and the monitor 6. As shown in the figure, the warning terminal 30 is attached to, for example, clothing or a belt worn by the worker 4 or the supervisor 6. A communication device such as a mobile phone, a smart phone, or a PDA (Personal Digital Assistant) may be used as hardware of the warning terminal 30.

  When the warning terminal 30 receives a warning output instruction indicating that the worker 4 has deviated from the work section 7 (approaching the charging unit) from the monitoring device 10, the warning terminal 30 uses information such as voice or light to indicate the warning. Output. As a result, the worker 4 and the supervisor 6 can quickly and reliably know that the worker 4 has deviated from the work section 7.

  FIG. 3 shows main hardware included in the monitoring apparatus 10. As shown in the figure, the monitoring device 10 includes a processor 101, a storage device 102, an input device 103, an output device 104, a communication device 105, and a power supply device (battery pack, AC / DC converter, etc.) not shown. These are communicably connected to each other via a communication line such as a bus (not shown). The processor 101 and the storage device 102 constitute an information processing device (computer).

  The processor 101 is configured using, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The storage device 102 is configured using a RAM (Random Access Memory), a ROM (Read Only Memory), an NVRAM (Non Volatile RAM), a hard disk drive, an SSD (Solid State Drive), and the like, and stores programs and data.

  The input device 103 is, for example, a user interface (keyboard, mouse, joystick, touch panel, etc.) used when a person inputs information. The output device 104 is a user interface that provides information to the user, such as an LCD (Liquid Crystal Display), a speaker, and an LED (Light Emitting Diode). The communication device 105 includes an interface for communicating with other devices via the communication unit 5, and is configured using, for example, a NIC (Network Interface Card), a wireless communication module, or the like.

  FIG. 4 shows main functions of the monitoring apparatus 10. As shown in the figure, the monitoring device 10 includes functions of a video signal receiving unit 151, a directivity range adjusting unit 152, a charging unit approach detecting unit 153, a warning output unit 154, and a warning terminal control unit 155. These functions are realized by, for example, the processor 101 reading and executing a program stored in the storage device 102. Moreover, these functions are implement | achieved by the hardware with which the monitoring apparatus 10 is provided, for example.

  The video signal receiving unit 151 receives a video signal transmitted from the camera-equipped sensor device 20 via the communication unit 5. When a plurality of camera-equipped sensor devices 20 are installed at the site, the video signal receiving unit 151 individually manages (receives, stores, and stores) a plurality of video signals transmitted from each of the camera-equipped sensor devices 20. Video output etc.).

  The directivity range adjustment unit 152 provides a user interface for adjusting the directivity range of the passive sensor 204 using the input device 103 and the output device 104. Details of this user interface will be described later. The directivity range adjustment unit 152 generates a control instruction corresponding to the instruction input received via the user interface, and transmits the generated control signal to the camera-equipped sensor device 20 via the communication unit 5.

  The charging unit approaching detection unit 153 receives the detection signal of the passive sensor 204 sent in real time from the camera-equipped sensor device 20, and based on the received detection signal, whether the worker 4 has deviated from the work section 7 or not. Determine.

  When the charging unit approach detection unit 153 determines that the worker 4 has deviated from the work section 7, the warning output unit 154 displays information indicating a warning to the output device 104 (sounding of the speaker, lighting or blinking of the LED, etc.). Output.

  The warning terminal control unit 155 communicates with the warning terminal 30 via the communication unit 5 when the charging unit approach detection unit 153 determines that the worker 4 has deviated from the work section 7, and indicates a warning to the warning terminal 30. An output instruction of information (sounding of a speaker, lighting or blinking of an LED, etc.) is transmitted.

  FIG. 5 shows main hardware included in the sensor device with camera 20. As shown in the figure, the camera-equipped sensor device 20 includes a processor 201, a storage device 202, a communication device 203, a passive sensor 204, a camera 205, a directivity range control mechanism 206, and a power supply device (battery pack, AC / DC) (not shown). Converter). These are communicably connected to each other via a communication line such as a bus (not shown). The processor 201 and the storage device 202 constitute an information processing device (computer).

  The processor 201 is configured using, for example, a CPU or MPU. The storage device 202 is configured using a RAM, a ROM, an NVRAM, or the like, and stores programs and data. The communication device 203 includes an interface for communicating with other devices via the communication unit 5, and is configured using, for example, a NIC or a wireless communication module.

  The passive sensor 204 receives far-infrared rays emitted from the human body surface, and more specifically, far infrared rays emitted from the human body and far infrared rays emitted from the background thereof. It is a sensor that detects the presence of a person based on the energy difference (temperature difference). As the passive sensor 204, for example, a sensor having a directivity range of about 70 to 90 ° on the plane side and a direction range of about 0 to 10 ° on the side surface side and a detection range (distance) of about 30 to 50 m is used. As an example of the passive sensor 204, for example, there are “outdoor passive sensors (PIR-30W, PIR-50N, etc.)” manufactured by Takenaka Engineering Co., Ltd. The passive sensor 204 continuously or intermittently outputs a detection signal that is a signal indicating whether or not a person is currently present within the directivity range.

  The camera 205 is an image sensor such as a CCD (Charged-coupled devices) or CMOS (Complementary metal-oxide-semiconductor), an optical element such as a lens, or a control circuit (focus, exposure, pan, zoom, etc.) of the image sensor or optical element. And a circuit for amplifying a video signal photographed by the image sensor and a circuit for communicating with other devices.

  The directivity range control mechanism 206 controls the directivity range of the passive sensor 204 and the shooting range of the camera 205. The directivity range control mechanism 206 includes, for example, an electronic movable mechanism configured using a drive device such as a servo motor. The passive sensor 204 and the camera 205 are initially set in advance so that the directivity range of the passive sensor 204 is included in the shooting range of the camera 205. The directivity range of the passive sensor 204 and the photographing range of the camera 205 may be controlled independently by the directivity range control mechanism 206, or they may be integrated in a predetermined positional relationship, and the two may be integrated as a directivity range control mechanism. It is good also as a structure controlled by 206. FIG.

  In FIG. 6, the main functions with which the sensor apparatus 20 with a camera is provided are shown. As shown in the figure, the camera-equipped sensor device 20 includes functions of a video signal transmission unit 251 and a directivity range control unit 252. These functions are realized by, for example, the processor 201 reading and executing a program stored in the storage device 202. Moreover, these functions are implement | achieved by the hardware with which the sensor apparatus 20 with a camera is provided, for example.

  The video signal transmission unit 251 transmits the video signal output from the camera 205 to the monitoring device 10 via the communication unit 5.

  The directivity range control unit 252 receives the directivity range control instruction of the passive sensor 204 and the photographing range control instruction of the camera 205 sent from the monitoring device 10, and the directivity range control mechanism 206 according to the received control instruction. By controlling the directivity range of the passive sensor 204 and the shooting range of the camera 205. Note that the control instructions sent from the monitoring device 10 include, for example, control instructions relating to focus, exposure, pan, zoom, and the like, in addition to the directivity range and shooting range control instructions. Upon receiving these control instructions, the directivity range control unit 252 performs control on the camera 205 according to the received control instructions.

  FIG. 7 shows main hardware included in the warning terminal 30. As shown in the figure, the warning terminal 30 includes a processor 301, a storage device 302, an output device 303, a communication device 304, and a power supply device (battery pack, AC / DC converter, etc.) not shown. These are communicably connected to each other via a communication line such as a bus (not shown). The processor 301 and the storage device 302 constitute an information processing device (computer).

  The processor 301 is configured using, for example, a CPU or MPU. The storage device 302 is configured using a RAM, ROM, NVRAM, or the like, and stores programs and data. The output device 303 is a user interface that provides information to the user, and is, for example, a speaker, an LED, an LCD, or the like. The communication device 304 includes an interface for communicating with other devices via the communication unit 5, and is configured using, for example, a wireless communication module.

  FIG. 8 shows main functions of the warning terminal 30. As shown in the figure, the warning terminal 30 includes functions of a warning output instruction receiving unit 351 and a warning output unit 352. These functions are realized by, for example, the processor 301 reading and executing a program stored in the storage device 302. Moreover, these functions are implement | achieved by the hardware with which the warning terminal 30 is provided, for example.

  The warning output instruction receiving unit 351 receives a warning output instruction sent from the monitoring apparatus 10 via the communication unit 5. When the warning output instruction receiving unit 351 receives the warning output instruction, the warning output unit 352 outputs a warning (speaker sound, LED lighting, blinking, etc.) to the output device 303.

[Direction adjustment]
FIG. 9 is a screen (hereinafter referred to as a directivity range adjustment screen 90) displayed as a user interface on the output device 104 when the directivity range adjustment unit 152 of the monitoring device 10 adjusts the directivity range of the passive sensor 204. . This figure is an example of a screen when two camera-equipped sensor devices 20 are installed at the site. Each of the camera-equipped sensor devices 20 (hereinafter referred to as “sensor device A with camera”, “sensor with camera”). Corresponding to the “device B”), the directivity range adjustment screen 90 is divided into left and right, and two display frames 91a and 91b are provided.

  On the display frames 91a and 91b, a graphic indicating the directivity range of the passive sensor 204 (hereinafter referred to as directivity range guide frames 92a and 92b) is displayed. Note that the passive sensor 204 and the camera 205 mounted on the camera-equipped sensor device 20 are respectively photographed by the camera 205 in which the directivity range of the passive sensor 204 and the photographing range of the camera 205 are displayed in the background in the display frames 91a and 91b. Initial setting is made so as to match the relationship between the images 93a and 93b and the directivity range guide frames 92a and 92b. For example, the monitoring device 10 transmits an adjustment signal, which is a control signal for adjusting the directivity range of the passive sensor 204 and the shooting range of the camera 205, to the sensor device with camera 20, and the sensor device with camera 20 transmits the adjustment signal. The initial setting is performed based on the adjustment signal.

  A user such as the worker 4 or the supervisor 6 operates the input device 103 (for example, a joystick, a mouse, etc.) while looking at the directivity range adjustment screen 90, and the directivity range of each passive sensor 204 for each sensor device 20 with a camera. Is adjusted to coincide with the vicinity 8 of the boundary surface of the work section 7.

  The directivity range adjustment unit 152 of the monitoring device 10 generates a control signal in accordance with an instruction input made by the user to the input device 103, and the generated control signal is transmitted to the corresponding camera-equipped sensor device via the communication unit 5. 20 to send. The directivity range control unit 252 of the camera-equipped sensor device 20 controls the directivity range control mechanism 206 according to the control signal to adjust the directivity range of the passive sensor 204.

  As described above, the worker 4 and the supervisor 6 can set the pointing range of the passive sensor 204 in the work section while confirming the image of the camera 205 in a place remote from the charging unit after the camera-equipped sensor device is installed on the site. The directivity range can be adjusted safely and easily so as to include the boundary surface vicinity 8 of 7.

[Example]
FIG. 10 is a flowchart illustrating a process performed by the monitoring apparatus 10 (hereinafter referred to as a charging unit approach monitoring process S1000). Hereinafter, the charging unit approach monitoring process S1000 will be described with reference to FIG. The charging unit approach monitoring process S1000 is executed, for example, when the worker 4 is performing a preparatory work such as inspection or repair of the electrical equipment 3.

  The charging unit approach detection unit 153 of the monitoring device 10 receives the detection signal of the passive sensor 204 transmitted from each camera-equipped sensor device 20 installed in the field via the communication unit 5 (S1011). Based on the detected signal, it is determined whether or not the worker 4 has departed from the work section 7 (S1012). If the charging unit approach detection unit 153 determines that the worker 4 has not departed from the work section 7 (S1012: NO), the process returns to S1011. If the charging unit approach detection unit 153 determines that the worker 4 has departed from the work section 7 (S1012: YES), the process proceeds to S1013.

  In step S <b> 1013, the warning output unit 154 outputs a warning (speaker sound, LED lighting, blinking, or the like) to the output device 104. The warning terminal control unit 155 communicates with the warning terminal 30 via the communication unit 5 and transmits an output instruction of information indicating warning (sounding of the speaker, lighting or blinking of the LED, etc.) to the warning terminal 30 (S1014). . When receiving the output instruction, the warning terminal 30 outputs information indicating the warning. Thereafter, the process returns to S1011.

  Thus, since the monitoring device 10 outputs a warning when it detects that the worker 4 has deviated from the work section 7, the worker 4 or the monitor 6 can ensure that the worker 4 has approached the charging unit. Can be recognized.

  As described above in detail, according to the charging unit approach monitoring system 1 of the present embodiment, the passive sensor 204 is installed at the site so that the directivity range thereof faces the vicinity 8 of the boundary between the inside and outside of the work section 7. In addition, it is possible to easily and safely realize a mechanism for accurately monitoring the approach of the worker 4 to the charging unit during the on-site work of the electric station. Even when the structure is complicated, the approach of the worker 4 to the charging unit can be reliably detected. Moreover, since the charging part approach monitoring system 1 is a mechanism which detects the operator 4 with the passive sensor 204, it can apply widely about the various charging part containing a special high voltage | pressure. In addition, it is possible to safely and easily adjust the directivity range of the passive sensor 204 while confirming an image from the monitoring device 10 at a location remote from the charging unit after the camera-equipped sensor device 20 is installed on the site. Moreover, when the worker 4 or the monitor 6 carries the warning terminal 30, when the worker 4 deviates from the work section 7, the worker 4 or the monitor 6 can be notified of the fact quickly and reliably.

  In addition, the above description is for making an understanding of this invention easy, and does not limit this invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Charging part approach monitoring system, 2 premise, 3 electric equipment, 4 worker, 5 communication means, 6 supervisor, 7 work section, 8 boundary surface vicinity, 10 monitoring apparatus, 151 video signal receiving part, 152 directional range adjustment part 153, charging unit approach detection unit, 154 warning output unit, 155 warning terminal control unit, 20 sensor device with camera, 204 passive sensor, 205 camera, 206 directional range control mechanism, 251 video signal transmission unit, 252 directional range control unit, 30 warning terminal, 351 warning output instruction receiving unit, 352 warning output unit, 90 directivity range adjustment screen, 91a, 91b display frame, 92a, 92b directivity range guide frame, 93a, 93b captured video, S1000 charging unit approach monitoring process

Claims (6)

A system for monitoring the approach of a worker to a live part on the premises of an electric station,
One or more passive sensors in which a directivity range is set in the vicinity of a boundary surface between the work section set on the premises and the outside of the work section where the charging unit exists, and
A monitoring device that is communicably connected to the passive sensor and receives a detection signal output from the passive sensor;
Including
The monitoring device
Based on a detection signal received from the passive sensor, a charging unit approach detection unit that determines whether the worker has departed from the work section, and
A warning output unit that outputs information indicating a warning when the charging unit approach detection unit determines that the worker has deviated from the work section;
Having
Charger approach monitoring system. The charging part approach monitoring system according to claim 1,
The passive sensor,
A camera that outputs a video signal obtained by capturing an image including a directivity range of the passive sensor;
A directivity range control mechanism that changes the directivity range of the passive sensor, and a communication device that communicates with the monitoring device;
Including a sensor device with a camera,
The monitoring device
An output device for displaying the video;
An input device for receiving an instruction input for adjusting the directivity range from a user;
A directivity range adjustment unit that transmits a control instruction according to the instruction input to the sensor device with camera,
Further comprising
The sensor device with a camera receives the control instruction, and changes a directivity range of the passive sensor according to the received control instruction.
Charger approach monitoring system. The charging part approach monitoring system according to claim 1 or 2,
A communication device for communicating with the monitoring device;
An output device for outputting information indicating a warning,
Including a warning terminal with
When the monitoring device detects that the worker has deviated from the work section, the monitoring device has a warning terminal control unit that transmits an output instruction of information indicating a warning to the warning terminal;
When the warning terminal receives the warning output instruction, the warning terminal outputs information indicating the warning. A method for monitoring the approach of a worker to a live part on the premises of an electric station,
Providing one or more passive sensors having a directivity range set near the boundary surface between the work section set on the premises and the outside of the work section where the charging unit exists;
A monitoring device communicably connected to the passive sensor, receiving a detection signal output from the passive sensor;
Determining whether or not the worker has deviated from the work section based on a detection signal received from the passive sensor by the monitoring device;
Outputting information indicating a warning when the monitoring device determines that the worker has deviated from the work section;
Including a charging unit approach monitoring method. The charging part approach monitoring method according to claim 4,
The passive sensor, a camera that outputs a video signal obtained by capturing an image including a directivity range of the passive sensor, a directivity range control mechanism that changes the directivity range of the passive sensor, and a communication device that communicates with the monitoring device A camera-equipped sensor device is installed on site,
The monitoring device displaying the video;
The monitoring device receiving an instruction input for adjusting the directivity range from a user;
The monitoring device transmitting a control instruction corresponding to the instruction input to the sensor device with a camera;
The camera-equipped sensor device receives the control instruction, and changes a directivity range of the passive sensor according to the received control instruction;
Including a charging unit approach monitoring method. It is the charge part approach monitoring method of Claim 4 or 5,
The worker carries a warning terminal having a communication device that communicates with the monitoring device and an output device that outputs information indicating warning,
When the monitoring device detects that the worker has deviated from the work section, a step of transmitting an output instruction of information indicating a warning to the warning terminal;
A step of outputting information indicating a warning when the warning terminal receives the warning output instruction;
Including a charging unit approach monitoring method.

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