KR102327216B1 - Radiation monitoring system based on radiation monitoring post - Google Patents

Abstract

The present invention relates to a radiation monitoring system based on a monitoring post, wherein monitoring posts perform aerial radiation measurement at an altitude in a vertical direction based on an installation position thereof to efficiently predict a movement path and a contaminated region of radiative material and to efficiently distinguish radiative effluent from the ground surface and radiative material which moves by floating from the outside. The radiation monitoring system includes a plurality of radiation monitoring unmanned aerial vehicles comprising: a GPS module; an autonomous flight control system; an aerial radiation analyzer; a memory; and a control unit.

Description

Radiation monitoring system based on radiation monitoring post

The present invention relates to radiation measurement technology, and more particularly to a monitoring post-based radiation monitoring system.

Currently, most of Korea's environmental radiation is monitored by relying on monitoring posts installed at a height of 1 to 2 m from the surface at intervals of 1 to 5 km within a 50 km radius of nuclear power plants.

The monitoring post is operated by installing a pressurized ionization chamber (HPIC) type spatial gamma dosimeter and a scintillation detector (NaI(Tl)) at a height of 1 to 2 m from the ground and operating it. measured in height.

In the event of a serious nuclear accident, the measurement of radioactive materials transferred from the radioactive plume containing fine dust, ultrafine dust, and aerosols is one of the sources of uncertainty. fall to the ground

Therefore, it is necessary to prepare in advance by grasping information on the movement route of the radioactive plume, radioactivity (dose), etc. However, since it is difficult to obtain data on aerial radiation using only monitoring posts, aerial radiation survey technologies using unmanned aerial vehicles have emerged.

Korean Patent Registration No. 10-2057189 (December 12, 2019) discloses a method for detecting radioactive materials using an unmanned aerial vehicle. This technology measures the radiation dose while the unmanned aerial vehicle is flying in the air while the radiation meter rotates at a constant rotation speed while mounted on the unmanned aerial vehicle. When the measured radiation dose exceeds a certain reference radiation counting rate, the unmanned aerial vehicle moves in the specific direction where the radiation dose is measured, and the unmanned aerial vehicle moves in a specific direction and arrives at the location of the radioactive material. Current location information of the unmanned aerial vehicle By transmitting the radioactive material, the location of the radioactive material is detected.

On the other hand, Korean Patent Laid-Open Publication No. 10-2016-0045356 (2016.04.27) discloses an unmanned aerial vehicle control system for detecting radiation and a radiation detection method using the unmanned aerial vehicle. This technology sets a radiation detection zone based on the atmospheric diffusion impact assessment result and EPZ, and performs radiation detection by putting an unmanned aerial vehicle into the established radiation detection zone. The unmanned aerial vehicle that performs radiation detection increases the number of unmanned aerial vehicles injected into areas with high radiation levels by adjusting the movement path through communication between the unmanned aerial vehicles, so that radiation detection can be performed quickly and precisely in case of radiation leakage. .

Meanwhile, Korean Patent Registration No. 10-0946738 (03.03.2010) discloses a mobile radiation dosimeter using a plurality of semiconductor radiation sensors. In this technology, a plurality of semiconductor radiation sensors arranged so that signal extraction electrode surfaces face different directions, respectively, and a signal processor for collecting and analyzing signals output from the plurality of semiconductor radiation sensors, respectively, are provided. It is possible to effectively discriminate not only the type of isotope, but also the direction in which the radioactive isotope is located.

However, although all of these conventional techniques are effective for locating radioactive materials, the radioactive material transferred from the plume including fine dust, ultra-fine dust, aerosols, etc. There is no way to predict the movement path and diffusion status of substances. In particular, there is no idea to provide data that can distinguish the leakage of radioactivity from the earth's surface and the radioactive material floating and moving from the outside.

Therefore, the present inventor can efficiently predict the movement path of radioactive material and the contaminated area by performing aerial radiation measurement for the altitude in the vertical direction based on the location where the monitoring posts are installed, and the radioactive leakage of the ground surface and the movement of floating from the outside A study was conducted on a technology that can efficiently discriminate radioactive materials.

Republic of Korea Patent No. 10-2057189 (December 12, 2019) Republic of Korea Patent Publication No. 10-2016-0045356 (2016.04.27) Republic of Korea Patent Registration No. 10-0946738 (03.03.2010)

The present invention can efficiently predict the movement path of radioactive material and the contaminated area by performing aerial radiation measurement for the altitude in the vertical direction based on the location where the monitoring posts are installed. An object of the present invention is to provide a monitoring post-based radiation monitoring system capable of efficiently discriminating substances.

According to an aspect of the present invention for achieving the above object, a monitoring post-based radiation monitoring system is installed at a plurality of positions for monitoring radiation, respectively, a plurality of monitoring posts for detecting ground radiation at each installation position and ; At least one is provided in each monitoring post, and includes a radiation monitoring unmanned aerial vehicle that detects aerial radiation for each measurement altitude in the vertical sky above each monitoring post.

According to an additional aspect of the present invention, an automatic flight control system for controlling the flight so that the radiation monitoring unmanned aerial vehicle rises to a measurement altitude at each measurement period; an aerial radiation analyzer that detects aerial radiation in at least four azimuth directions for each measurement altitude, and analyzes and collects nuclides of aerial radiation in each azimuth direction for each detected elevation; a memory for storing nuclide analysis results of aerial radiation in each azimuth direction for each measured altitude output by the aerial radiation analyzer; and a control unit that drives and controls the automatic flight control system for each measurement period, and controls to store in a memory the nuclide analysis result of aerial radiation in each azimuth direction for each measurement altitude collected by the aerial radiation analyzer.

According to an additional aspect of the present invention, the radiation monitoring unmanned aerial vehicle further comprises a GPS module for calculating a current position, and the automatic flight control system uses the current position calculated by the GPS module to enable the radiation monitoring unmanned aerial vehicle to monitor the post vertical sky It may be implemented to control the flight so as not to deviate from the position.

According to an additional aspect of the present invention, the control unit may control the nuclide analysis result of the aerial radiation in each azimuth direction for each measured altitude to be associated with the current position calculated by the GPS module and stored in the memory.

According to an additional aspect of the present invention, the radiation monitoring unmanned aerial vehicle further includes an altimeter for measuring the altitude of the radiation monitoring unmanned aerial vehicle, and the automatic flight control system uses the altitude data measured by the altimeter to measure the radiation monitoring unmanned aerial vehicle to the measured altitude It can be implemented to control the flight so that it rises and maintains the measured altitude during the measurement time.

According to an additional aspect of the present invention, the radiation monitoring unmanned aerial vehicle further includes an azimuth sensor for measuring an azimuth, and the automatic flight control system flies so that the aerial radiation analyzer maintains a constant azimuth direction using the azimuth measured by the azimuth sensor. It can be implemented to control.

According to an additional aspect of the present invention, an aerial radiation analyzer is installed in at least four directions, comprising: a plurality of radiation detectors configured to detect aerial radiation in each azimuth direction for each measured altitude; a plurality of nuclide analyzers for respectively analyzing nuclides of aerial radiation in each azimuth direction for each measurement altitude detected by each of the plurality of radiation detectors; It includes a data acquisition system (DAS: Data Acquisition System) that collects nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude analyzed by a plurality of nuclide analyzers.

According to an additional aspect of the present invention, the radiation monitoring unmanned aerial vehicle further includes a first wireless communication unit for wirelessly transmitting the radionuclide analysis result of the aerial radiation in each azimuth direction for each measured altitude stored in the memory to the monitoring post.

According to an additional aspect of the present invention, the monitoring post includes: a terrestrial radiation analyzer that detects terrestrial radiation every measurement period, and analyzes and collects nuclides of the detected terrestrial radiation; a second wireless communication unit for wirelessly transmitting a synchronization signal to the radiation monitoring unmanned aerial vehicle for each measurement period and wirelessly receiving radionuclides analysis results of aerial radiation in each azimuth direction for each measurement altitude from the radiation monitoring unmanned aerial vehicle; and an integrated control unit for integrated management of the nuclide analysis result of the terrestrial radiation collected by the terrestrial radiation analyzer and the nuclide analysis result of the aerial radiation in each azimuth direction for each measured altitude received through the second wireless communication unit.

According to an additional aspect of the present invention, a monitoring post-based radiation monitoring system collects terrestrial radiation measurement results from a plurality of monitoring posts and nuclide analysis results of aerial radiation in each azimuth direction by measurement altitude, and analyzes them to obtain radioactive materials It further includes a central control server for estimating the movement path and the contaminated area.

The present invention can efficiently predict the movement path of radioactive material and the contaminated area by performing aerial radiation measurement for the altitude in the vertical direction based on the location where the monitoring posts are installed. Since substances can be efficiently identified, there is an effect of preparing in advance for the risk of radiation exposure.

In addition, since the present invention enables early prediction of a nuclear accident through monitoring of a radioactive material movement path, there is an effect that can prevent radiation exposure of residents by issuing an alarm for evacuation of residents.

1 is a schematic diagram of a monitoring post-based radiation monitoring system according to the present invention.
Figure 2 is a block diagram showing the configuration of an embodiment of the radiation monitoring unmanned aerial vehicle of the monitoring post-based radiation monitoring system according to the present invention.
3 is a block diagram showing the configuration of an embodiment of an aerial radiation analyzer provided in the radiation monitoring unmanned aerial vehicle of the monitoring post-based radiation monitoring system according to the present invention.
4 is a block diagram showing the configuration of an embodiment of the monitoring post of the monitoring post-based radiation monitoring system according to the present invention.

Hereinafter, the present invention will be described in detail so that those skilled in the art can easily understand and reproduce it through preferred embodiments described with reference to the accompanying drawings. While specific embodiments are illustrated in the drawings and the related detailed description is set forth, they are not intended to limit the various embodiments of the present invention to a specific form.

In describing the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the embodiments of the present invention, the detailed description thereof will be omitted.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be

On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

1 is a schematic diagram of a monitoring post-based radiation monitoring system according to the present invention. As shown in FIG. 1 , the monitoring post-based radiation monitoring system 100 according to the present invention includes a plurality of monitoring posts 110 and radiation monitoring unmanned aerial vehicles 120 .

The monitoring post 110 is respectively installed at a plurality of positions for monitoring radiation, and detects ground radiation at each installation position. For example, the monitoring post 110 may be installed at a height of 1 to 2 m from the ground surface at intervals of 1 to 5 km within a radius of 50 km from the nuclear power plant to detect ground radiation with a risk of human exposure.

At least one radiation monitoring unmanned aerial vehicle 120 is provided in each monitoring post 110 , and detects aerial radiation for each monitoring post 110 measured vertically in the vertical sky. For example, the radiation monitoring unmanned aerial vehicle 120 is implemented to detect aerial radiation in at least four directions for each measurement altitude while ascending for each measurement altitude vertically above the monitoring post 110 at every measurement period, and to analyze the detected aerial radiation nuclides. can be

At this time, one radiation monitoring unmanned aerial vehicle 120 may be operated for each monitoring post 110 , but in order to measure aerial radiation at the measurement altitude, the radiation monitoring unmanned aerial vehicle 120 must fly to maintain the measurement altitude for a long time. Therefore, it is preferable to operate two or more radiation monitoring unmanned aerial vehicles 120 for each monitoring post 110 because the battery consumption for supplying power to the radiation monitoring unmanned aerial vehicle 120 is significant.

Ground radiation measurement results detected by the monitoring posts 110 installed at a plurality of locations, and the measurement altitude detected by the radiation monitoring unmanned aerial vehicle 120 flying up and down vertically of each monitoring post 110 . When aerial radiation measurement results in four directions are collected in real time and analyzed based on meteorological environmental conditions such as wind direction, wind speed, atmospheric temperature, and precipitation, it is possible to predict the movement path of radioactive materials and the contaminated area.

By implementing in this way, the present invention can efficiently predict the movement path of radioactive material and the contaminated area by performing aerial radiation measurement for the altitude in the vertical direction based on the location where the monitoring posts are installed. Since floating and moving radioactive materials can be efficiently distinguished, it is possible to prepare in advance for the risk of radiation exposure.

In addition, since the present invention enables early prediction of a nuclear accident through monitoring of a radioactive material movement path, it is possible to prevent radiation exposure of residents by issuing an alarm for evacuation of residents.

Figure 2 is a block diagram showing the configuration of an embodiment of the radiation monitoring unmanned aerial vehicle of the monitoring post-based radiation monitoring system according to the present invention. As shown in FIG. 2 , the radiation monitoring unmanned aerial vehicle 120 according to this embodiment includes an automatic flight control system 121 , an aerial radiation analyzer 122 , a memory 123 , and a control unit 124 . do.

The automatic flight control system (Automatic Flight Control System) 121 controls the flight so that the radiation monitoring unmanned aerial vehicle 120 rises to a measurement altitude every measurement period. Since the automatic flight control system is a common matter in the field of aviation technology, a detailed description thereof will be omitted.

The aerial radiation analyzer 122 detects aerial radiation in at least four directions for each measurement altitude, and analyzes and collects nuclides of aerial radiation in each azimuth direction for each detected elevation.

3 is a block diagram showing the configuration of an embodiment of an aerial radiation analyzer provided in the radiation monitoring unmanned aerial vehicle of the monitoring post-based radiation monitoring system according to the present invention. 3 , the aerial radiation analyzer 122 includes a plurality of radiation detectors 122a, a plurality of nuclide analyzers 122b, and a data collection system 122c.

The plurality of radiation detectors 122a are installed in at least four directions to detect aerial radiation in each azimuth direction for each measured altitude. For example, a CdZnTe (CZT; Cadmium Zinc Telluride) detector may be used as the radiation detector 122a.

The CZT detector is a compound semiconductor detector, has a high atomic number compared to other semiconductor detectors, has a high density, and has excellent detection efficiency. However, the present invention is not limited thereto.

Meanwhile, the four radiation detectors 122a are installed in the east, west, south, and north directions, respectively, or the eight radiation detectors 122a are installed in the east, west, south, north, northeast, northwest, southeast, and southwest directions, respectively. may be, but is not limited thereto.

The plurality of nuclide analyzers 122b respectively analyze nuclides of aerial radiation in each azimuth direction for each measurement altitude detected by each of the plurality of radiation detectors 122a. For example, an MCA (Multi-Channel Analyzer) analyzer may be used as the nuclide analyzer 122b.

The MCA analyzer analyzes the energy spectrum of each channel radiation signal output by the plurality of radiation detectors 122a, and analyzes a nuclide, that is, a radiation type. However, the present invention is not limited thereto.

A data acquisition system (DAS: Data Acquisition System) 122c collects nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude analyzed by a plurality of nuclide analyzers 122b, respectively.

The memory 123 stores a nuclide analysis result of aerial radiation in each azimuth direction for each measured altitude output by the aerial radiation analyzer 122 . For example, the memory 123 may be a non-volatile memory such as an EEPROM or a flash memory.

The control unit 124 drives and controls the automatic flight control system 121 for each measurement period, and stores the results of nuclide analysis of the aerial radiation in each azimuth direction for each measurement altitude collected by the aerial radiation analyzer 122 in the memory 123 . control to do

For example, the control unit 124 receives a synchronization signal from the monitoring post 110 at every measurement period, and raises the radiation monitoring unmanned aerial vehicle 120 vertically to the monitoring post 110 for each measurement altitude while automatically adjusting the flight posture during the measurement time. can be controlled to keep.

An automatic flight control system 121 under the control of the controller 124 raises the radiation monitoring unmanned aerial vehicle 120 vertically above the monitoring post 110 based on a flight scenario set for each measurement period by measurement altitude. while automatically maintaining the flight posture during the measurement time.

Then, under the control of the controller 124 , the aerial radiation analyzer 122 detects and analyzes the aerial radiation in each azimuth direction for each measured altitude, and stores the nuclide analysis result of the aerial radiation in each azimuth direction by the measured altitude in the memory 123 . save the

By implementing in this way, the radiation monitoring unmanned aerial vehicle can perform aerial radiation measurement for each altitude measured vertically above the monitoring post based on the location where the monitoring post is installed.

Meanwhile, according to an additional aspect of the invention, the radiation monitoring unmanned aerial vehicle 120 may further include a GPS module 125 . The GPS module 125 calculates the current position of the radiation monitoring unmanned aerial vehicle 120 . The GPS module 125 receives GPS satellite signals from a plurality of GPS satellites (not shown) and calculates its current position, which is a common matter known before this application, and thus a description thereof will be omitted.

At this time, the automatic flight control system 121 using the current position calculated by the GPS module 125 can be implemented to control the flight so that the radiation monitoring unmanned aerial vehicle 120 does not deviate from the vertical overhead position of the monitoring post 110 . have.

Meanwhile, the controller 124 may control the nuclide analysis result of the aerial radiation in each azimuth direction for each measured altitude to be stored in the memory 123 in association with the current location calculated by the GPS module 125 .

By implementing in this way, the present invention enables the radiation monitoring unmanned aerial vehicle to perform aerial radiation measurement for each altitude measured vertically above the monitoring post without departing from the location where the monitoring post is installed, and aerial radiation in each azimuth direction for each measurement altitude. nuclide analysis results can be stored in association with the current location.

Meanwhile, according to an additional aspect of the invention, the radiation monitoring unmanned aerial vehicle 120 may further include an altimeter 126 . The altimeter 126 measures the altitude of the radiation monitoring unmanned aerial vehicle 120 .

At this time, the automatic flight control system 121 raises the radiation monitoring unmanned aerial vehicle 120 to the measurement altitude using the altitude data measured by the altimeter 126 to control the flight to maintain the measurement altitude for the measurement time.

By implementing in this way, the present invention can perform aerial radiation measurement while maintaining an accurate measurement altitude at the location where the monitoring post is installed by the radiation monitoring unmanned aerial vehicle.

Meanwhile, according to an additional aspect of the invention, the radiation monitoring unmanned aerial vehicle 120 may further include an azimuth sensor 127 . The azimuth sensor 127 measures the azimuth of the radiation monitoring unmanned aerial vehicle 120 .

At this time, the automatic flight control system 121 uses the azimuth measured by the azimuth sensor 127 to control the flight so that the aerial radiation analyzer 122 maintains a constant azimuth direction.

If the radiation monitoring unmanned aerial vehicle 120 is shaken by wind or the like and the aerial radiation analyzer 122 changes without maintaining a constant azimuth, accurate azimuth radiation measurement is impossible.

The present invention measures the azimuth through the azimuth sensor 127, and the automatic flight control system 121 uses the azimuth measured by the azimuth sensor 127 to control the flight so that the aerial radiation analyzer 122 maintains a constant azimuth direction. This makes it possible to measure radiation in an accurate azimuth direction.

On the other hand, according to an additional aspect of the invention, the radiation monitoring unmanned aerial vehicle 120 may further include a first wireless communication unit (128). The first wireless communication unit 128 wirelessly transmits the nuclide analysis result of the aerial radiation in each azimuth direction for each measured altitude stored in the memory 123 to the monitoring post 110 . For example, the first wireless communication unit 128 may be implemented based on LoRa (Long Range) having a transmission distance of about several tens of Km, but is not limited thereto.

By implementing in this way, the present invention monitors the results of nuclide analysis of aerial radiation in each azimuth direction for each measurement altitude measured by the radiation monitoring unmanned aerial vehicle 120 flying in the vertical sky of the monitoring post 110 , the monitoring post 110 . can be collected and managed.

4 is a block diagram showing the configuration of an embodiment of the monitoring post of the monitoring post based radiation monitoring system according to the present invention. As shown in FIG. 4 , the monitoring post 110 according to this embodiment includes a terrestrial radiation analyzer 111 , a second wireless communication unit 112 , and an integrated control unit 113 .

The terrestrial radiation analyzer 111 detects terrestrial radiation every measurement period, and analyzes and collects nuclides of the detected terrestrial radiation. For example, the ground radiation analyzer 111 may include a pressurized ionization chamber (HPIC) type spatial gamma dosimeter installed at a height of 1 to 2 m from the ground surface, and a gamma ray spectrum monitor using a scintillation detector (NaI(Tl)). However, the present invention is not limited thereto.

The second wireless communication unit 112 wirelessly transmits a synchronization signal to the radiation monitoring unmanned aerial vehicle 120 at every measurement period, and wirelessly receives the radionuclide analysis result of the aerial radiation in each azimuth direction for each measurement altitude from the radiation monitoring unmanned aerial vehicle 120 . do. For example, the second wireless communication unit 112 may be implemented based on LoRa (Long Range) having a transmission distance of about several tens of Km, but is not limited thereto.

Here, the synchronization signal is a trigger signal instructing the monitoring post 110 that measures ground radiation every measurement period to instruct the radiation monitoring unmanned aerial vehicle 120 to perform aerial radiation measurement.

When the radiation monitoring unmanned aerial vehicle 120 receives a synchronization signal from the monitoring post 110, it flies vertically above the monitoring post 110 to detect and analyze airborne radiation in each azimuth direction for each measured altitude, and the monitoring post The radionuclide analysis result of aerial radiation in each azimuth direction for each measured altitude is transmitted wirelessly by (110).

Then, the monitoring post 110 wirelessly receives and manages the radionuclide analysis result of the aerial radiation in each azimuth direction for each altitude measured at the location of the monitoring post 110 through the second wireless communication unit 112 .

The integrated control unit 113 integrates the nuclide analysis result of the terrestrial radiation collected by the terrestrial radiation analyzer 111 and the nuclide analysis result of the aerial radiation in each azimuth direction for each measured altitude received through the second wireless communication unit 112 . manage

Ground radiation measurement results detected by the monitoring posts 110 installed at a plurality of locations, and the measurement altitude detected by the radiation monitoring unmanned aerial vehicle 120 flying up and down vertically of each monitoring post 110 . If the results of aerial radiation measurements in the four directions are collected for each measurement time period and analyzed based on the meteorological and environmental conditions for each measurement time period such as wind direction, wind speed, atmospheric temperature, precipitation, etc., the movement path of radioactive materials and the contaminated area can be predicted. .

By implementing in this way, the present invention can efficiently predict the movement path of radioactive material and the contaminated area by performing aerial radiation measurement for the altitude in the vertical direction based on the location where the monitoring posts are installed. Since floating and moving radioactive materials can be efficiently distinguished, it is possible to prepare in advance for the risk of radiation exposure.

On the other hand, according to an additional aspect of the invention, the monitoring post-based radiation monitoring system 100 may further include a central control server (130). The central control server 130 collects ground radiation measurement results from a plurality of monitoring posts 110 and nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude, and analyzes them to determine the movement path of radioactive material and the contaminated area. to estimate

At this time, the monitoring posts 110 and the central control server 130 are wired or wirelessly connected through a wired network or a mobile communication network between the monitoring posts 110 and the central control server 130 from the monitoring posts 110 installed in multiple locations on the ground. It may be implemented to collect radiation measurement results and nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude.

The central control server 130 includes the ground radiation measurement results detected by the monitoring posts 110 installed in a plurality of locations, and the radiation monitoring unmanned aerial vehicle 120 flying vertically above each of the monitoring posts 110 . ), the results of measurements of aerial radiation in 4 directions for each measurement altitude are collected for each measurement time period, and the radioactive material movement path and prediction of contaminated areas.

The radioactive material movement path and contamination area prediction information predicted by the central control server 130 may be processed and provided over the network, and people predict the radioactive material movement path and contamination area through TV or smart phone. information can be checked.

By implementing in this way, the present invention can efficiently predict the movement path of radioactive material and the contaminated area by performing aerial radiation measurement for the altitude in the vertical direction based on the location where the monitoring posts are installed. Since floating and moving radioactive materials can be efficiently distinguished, it is possible to prepare in advance for the risk of radiation exposure.

In addition, since the present invention enables early prediction of a nuclear accident through monitoring of a radioactive material movement path, it is possible to prevent radiation exposure of residents by issuing an alarm for evacuation of residents.

The various embodiments disclosed in the present specification and drawings are merely presented as specific examples to aid understanding, and are not intended to limit the scope of various embodiments of the present invention.

Accordingly, the scope of various embodiments of the present invention, in addition to the embodiments described herein, all changes or modifications derived based on the technical idea of various embodiments of the present invention are included in the scope of various embodiments of the present invention. should be interpreted as being

INDUSTRIAL APPLICABILITY The present invention can be used industrially in the field of radiation measurement technology and its applications.

100: monitoring post-based radiation monitoring system
110: monitoring post
111: terrestrial radiation analyzer
112: second wireless communication unit
113: integrated control unit
120: radiation monitoring drone
121: automatic flight control system
122: aerial radiation analyzer
122a: radiation detector
122b: nuclide analyzer
122c: Data Acquisition System
123: memory
124: control unit
125: GPS module
126: altimeter
127: azimuth sensor
128: first wireless communication unit
130: central control server

Claims (10)

Radiation monitoring that is installed at a plurality of positions for monitoring radiation, and at least one is provided for each of a plurality of monitoring posts for detecting ground radiation at each installation location, to detect aerial radiation for each measurement altitude vertically above each monitoring post A monitoring post-based radiation monitoring system including unmanned aerial vehicles, wherein the radiation monitoring unmanned aerial vehicle comprises:
a GPS module for calculating the current location;
An automatic flight control system that controls the flight so that the radiation monitoring unmanned aerial vehicle rises to a measurement altitude every measurement period, and controls the flight so that the radiation monitoring unmanned aerial vehicle does not deviate from the monitoring post vertical position using the current position calculated by the GPS module;
an aerial radiation analyzer that detects aerial radiation in at least four azimuth directions for each measurement altitude, and analyzes and collects nuclides of aerial radiation in each azimuth direction for each detected elevation;
a memory for storing nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude output by the aerial radiation analyzer;
A monitoring post-based radiation monitoring system comprising: a control unit that drives and controls the automatic flight control system for each measurement period, and controls to store in a memory the result of nuclide analysis of aerial radiation in each azimuth direction for each measurement altitude collected by the aerial radiation analyzer. delete delete The method of claim 1,
Controls:
A monitoring post-based radiation monitoring system that controls to store in memory the result of nuclide analysis of aerial radiation in each azimuth direction by measurement altitude in association with the current position calculated by the GPS module. The method of claim 1,
Radiation monitoring drones:
Further comprising an altimeter for measuring the altitude of the radiation monitoring unmanned aerial vehicle;
A monitoring post-based radiation monitoring system in which the automatic flight control system uses the altitude data measured by the altimeter to control the flight to elevate the radiation monitoring unmanned aerial vehicle to the measurement altitude and maintain the measurement altitude during the measurement time. The method of claim 1,
Radiation monitoring drones:
Further comprising an azimuth sensor for measuring the azimuth,
A monitoring post-based radiation monitoring system in which the automatic flight control system uses the azimuth measured by the azimuth sensor to control the flight so that the aerial radiation analyzer maintains a constant azimuth direction. The method of claim 1,
Aerial Radiation Analyzer:
a plurality of radiation detectors installed in at least four directions to detect aerial radiation in each azimuth direction for each measured altitude;
a plurality of nuclide analyzers for respectively analyzing nuclides of aerial radiation in each azimuth direction for each measurement altitude detected by each of the plurality of radiation detectors;
a data acquisition system (DAS: Data Acquisition System) that collects nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude analyzed by a plurality of nuclide analyzers;
Monitoring post-based radiation monitoring system comprising. Radiation monitoring that is installed at a plurality of positions for monitoring radiation, and at least one is provided for each of a plurality of monitoring posts for detecting ground radiation at each installation location, to detect aerial radiation for each measurement altitude vertically above each monitoring post A monitoring post-based radiation monitoring system including unmanned aerial vehicles, wherein the radiation monitoring unmanned aerial vehicle comprises:
an automatic flight control system for controlling the flight to ascend to a measurement altitude for the radiation monitoring unmanned aerial vehicle at every measurement period;
an aerial radiation analyzer that detects aerial radiation in at least four azimuth directions for each measurement altitude, and analyzes and collects nuclides of aerial radiation in each azimuth direction for each detected elevation;
a memory for storing nuclide analysis results of aerial radiation in each azimuth direction for each measurement altitude output by the aerial radiation analyzer;
a control unit that drives and controls the automatic flight control system for each measurement period, and controls to store in a memory the results of nuclide analysis of aerial radiation in each azimuth direction for each measurement altitude collected by the aerial radiation analyzer;
A monitoring post-based radiation monitoring system comprising a; a first wireless communication unit for wirelessly transmitting the results of analysis of nuclide of aerial radiation in each azimuth direction for each measured altitude stored in the memory to the monitoring post. 9. The method according to any one of claims 1 to 8,
Monitoring Post:
a terrestrial radiation analyzer that detects terrestrial radiation every measurement period, and analyzes and collects nuclides of the detected terrestrial radiation;
a second wireless communication unit for wirelessly transmitting a synchronization signal to the radiation monitoring unmanned aerial vehicle at every measurement period, and for wirelessly receiving a radionuclide analysis result of aerial radiation in each azimuth direction by measurement altitude from the radiation monitoring unmanned aerial vehicle;
an integrated control unit for integrated management of nuclide analysis results of terrestrial radiation collected by the terrestrial radiation analyzer and nuclide analysis results of aerial radiation in each azimuth direction for each measured altitude received through the second wireless communication unit;
Monitoring post-based radiation monitoring system comprising. 10. The method of claim 9,
The monitoring post-based radiation monitoring system has:
a central control server that collects terrestrial radiation measurement results from a number of monitoring posts and nuclide analysis results of aerial radiation in each azimuth direction by measurement altitude, and analyzes them to estimate the movement path of radioactive materials and contaminated areas;
Monitoring post-based radiation monitoring system further comprising.

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