A manned aircraft-based radiation environment monitoring method
By using a manned aircraft-based aerial monitoring method for the radiation environment, the problem of low efficiency in traditional ground monitoring has been solved, enabling efficient acquisition of radiation environment data and identification of anomalies, thus providing a basis for environmental risk assessment.
Patent Information
- Application Number
- CN202211291916.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2042-10-20
AI Technical Summary
Traditional ground-based radiation environment monitoring is slow, inefficient, and cannot achieve full coverage of the target area, while also consuming a large amount of human resources.
The method of aerial monitoring of radiation environment based on manned aircraft is adopted, including selecting appropriate aerial and ground monitoring equipment, calibrating and installing the equipment, determining flight routes, acquiring and processing monitoring data, and generating results reports.
It has improved the efficiency and speed of radiation environment monitoring, reduced the consumption of human resources, and provided rapid data on the current status of radiation environment monitoring, thus providing a basis for radiation anomaly identification and environmental risk assessment.
Smart Images
Figure CN115586565B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of radiation environment monitoring applications, specifically to a manned aircraft-based aerial radiation environment monitoring method. Background Technology
[0002] Aerial radiation environment monitoring is a geophysical measurement method that utilizes aircraft equipped with airborne radiometric measurement equipment to monitor the radiation environment from the air. It offers advantages such as speed, efficiency, large coverage area, and independence from ground transportation, terrain, and landform limitations. For ecological environmental protection, it acquires aerial radiation environment data for target areas, identifies the current radiation environment status, and determines the characteristics and patterns of radiation anomalies, enabling the measurement of the impact of current radiation levels on the ecological environment. Traditional ground-based radiation environment monitoring typically employs a multi-point monitoring approach with monitoring points at different locations within a specified area. This method is slow, inefficient, labor-intensive, and cannot achieve full area coverage of the target radiation environment.
[0003] In summary, this invention presents a manned aircraft-based aerial monitoring method for radiation environment. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a manned aircraft-based aerial monitoring method for radiation environment, which can effectively reduce the human resource consumption of ground-based radiation environment monitoring, improve the work efficiency of radiation environment monitoring, increase the speed of radiation environment data acquisition, and improve economic and social benefits.
[0005] To achieve the above objectives, the present invention provides a method for aerial monitoring of radiation environment based on manned aircraft, comprising the following steps:
[0006] 1. Complete preliminary preparations, determine the manned aircraft type, select and prepare aerial radiation environment monitoring equipment and ground measurement equipment, complete indoor testing of aerial and ground equipment, complete pre-installation preparation and inspection of aerial radiation environment monitoring equipment, complete installation of aerial radiation environment monitoring equipment, and complete testing of aerial radiation environment monitoring equipment inside manned aircraft.
[0007] 2. Calibrate the aerial radiation environment monitoring equipment and ground measurement equipment selected and prepared in step 1.
[0008] 3. Based on the calibrated aerial radiation environment monitoring equipment and ground measurement equipment completed in step 2, preferably manned airports, complete the layout of aerial radiation environment monitoring survey lines, baseline selection and flight method determination, acquire aerial radiation environment monitoring data, complete the layout of ground radiation environment measurement routes, acquire ground radiation environment data, complete air-to-ground comparison measurement and radiation anomaly verification, verify aerial and ground measurement records, perform data preprocessing in a timely manner, organize and submit original data, and archive and preserve the preprocessed qualified data.
[0009] 4. Based on the calibration parameters, correct the preprocessed aerial radiation environment monitoring data of the preprocessed data and file and save the qualified data in step 3. Calculate the air absorbed dose rate, artificial nuclide surface activity and natural nuclide activity concentration at 1m on the ground and generate a map for analysis.
[0010] 5. Using the maps generated in step 4, complete the compilation of the final maps and report.
[0011] 6. Submit the final results report, results maps, and relevant monitoring data completed in steps 3 and 5.
[0012] Preferably, step 1 specifically includes the following steps: Based on the topography of the target area, determine the type of manned aircraft; select an aerial radiation environment monitoring device with good electromagnetic compatibility with the aircraft; select a ground-based radiation environment measurement device for ground anomaly verification and environmental geological background investigation; in a laboratory environment, perform energy window setting, energy resolution and energy spectrum peak drift testing, energy spectrum linearity testing, and stability testing on the aerial radiation environment monitoring device and the ground-based measurement device; obtain various technical indicators for the tests; detect the background radiation levels in the front, middle, and rear compartments of the manned aircraft; install the aerial radiation environment monitoring device inside the manned aircraft; check the robustness of the installation of various instruments, components, and the entire aircraft, as well as the correctness of the cable connections for various instruments and components; and perform energy resolution and energy spectrum peak drift testing, energy spectrum linearity testing, stability testing, and GPS navigation and positioning system static testing on the installed aerial radiation environment monitoring device.
[0013] Preferably, the airborne radiation environment monitoring equipment in step 1 includes an airborne multichannel gamma spectrometer, a control and data acquisition system, a GPS navigation and positioning system, a radar altimeter, a barometric altimeter, a temperature sensor, a humidity sensor, etc., and the ground-based radiation environment measurement equipment includes an ARD environmental NaI(Tl) gamma spectrometer, an FH40G portable X-γ dose rate meter, an FD-3013 digital gamma radiation meter, etc.
[0014] Preferably, step 2 specifically includes the following steps: calibration of the radar altimeter of the radiation environment aerial monitoring equipment over the airport, static calibration of the standard device for the aerial radiometric measurement model, high-altitude flight calibration in the background test area, flight calibration in the dynamic test zone, and area source calibration; and obtaining a calibration certificate for the ground-based radiation environment measuring instrument.
[0015] Preferably, step 3 specifically includes the following steps: Based on the distribution, distance, and flight traffic of airports surrounding the target area, select an airport as a base for aerial radiation environment monitoring; arrange the main aerial radiation environment monitoring line perpendicular to the prevailing wind direction of the target area and in conjunction with natural geographical features; arrange connecting lines perpendicular to the main monitoring line direction; set the spacing between the main monitoring line and the connecting line according to the aerial radiation environment monitoring scale; evenly distribute check lines within the target area; select a flat, uniformly radiated area near the airport to establish a baseline for the quality of aerial monitoring data for each flight before and after data collection; conduct aerial radiation environment monitoring by flying along the terrain using the established main monitoring line, connecting line, and check line to obtain aerial radiation environment monitoring data; arrange ground measurement points and ground soil sampling points for ground radiation environment measurement based on the geological and radiation environment conditions of the target area to obtain ground radiation environment data; select terrain on the baseline... For relatively flat areas without water systems and with a relatively uniform environmental radiation field, baseline air-to-ground comparisons should be conducted. If there are already fixed radiation environment monitoring points in the target area, synchronous radiation environment monitoring data from all deployed measurement points should be collected, and air-to-ground data comparisons should be carried out. Verify any discovered radiation anomalies, ascertain the objective circumstances of the anomalies, and determine their scale, dose rate level, and cause. Verify the radiation environment aerial monitoring flight records and operator records, verify the morning and evening test results of aerial and ground radiation environment measurements, verify the names, sizes, and records of the aerial radiation environment monitoring flight track video files, and verify the names, sizes, records, and measurement times of the original data files for aerial radiation environment monitoring. After each flight, all original data should be checked and preprocessed. The original data from each flight should be compiled and submitted. After the data preprocessing is approved, the original data files for aerial radiation environment monitoring should be archived, registered, and stored.
[0016] Preferably, the data preprocessing in step 3 includes the following routine processing flow for single-flight measurement data: reading the original aerial survey data file, checking, correcting the energy spectrum data, calculating the specific activity of nuclides, and statistical plotting; confirming the quality of the aerial survey data for that flight, including the working status of the aerial survey system, the aerial survey flight altitude index, and the yaw index; calculating the count of each energy window for the original energy spectrum data of the radiation environment aerial monitoring, performing various corrections, and calculating the mass activity or surface activity of nuclides.
[0017] Preferably, the raw data in step 3 includes: flight records (reports) after each flight, operator records (reports), morning and evening test results, flight track video files, and raw data files of radiation environment aerial monitoring.
[0018] Preferably, step 4 specifically includes the following steps: based on the calibration parameters, the preprocessed aerial radiation environment monitoring data is corrected, the air absorbed dose rate, artificial nuclide surface activity and natural nuclide activity concentration at 1m on the ground are calculated, and a map is generated for analysis.
[0019] Preferably, the radiation environment aerial monitoring data correction processing flow in step 4 is as follows: the preprocessed energy spectrum data is processed by energy window counting; the processed data is corrected for cosmic ray aircraft background; the corrected data is corrected for atmospheric radon; the preprocessed radar altitude data, air pressure data, and temperature data are processed for STP ground-level data; the data after atmospheric radon correction and the data after STP ground-level data are corrected by energy window stripping; the corrected data is corrected by altitude normalization; the corrected data forms radionuclide activity data and air absorbed dose rate data; and the radionuclide activity data, air absorbed dose rate data, and preprocessed GPS data form the final data processing result.
[0020] Preferably, step 5 specifically includes the following steps: based on the data processing results of step 4, compile the result maps and result report.
[0021] Preferably, step 6 specifically includes the following steps: based on the result maps and result reports completed in step 5, submit the final result report, result maps and related monitoring data.
[0022] The beneficial effects of this invention are as follows: This invention can quickly acquire aerial monitoring data on the radiation environment of a target area, fully understand the changes in the radiation environment of the target area, and provide a basis for effectively identifying radiation anomalies and assessing environmental risks. This method can effectively reduce the manpower consumption of ground-based radiation environment monitoring, improve the efficiency of radiation environment monitoring, increase the speed of acquiring radiation environment data, and improve economic and social benefits. Attached Figure Description
[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;
[0024] Figure 1 This is a flowchart of the method of the present invention. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0026] Reference Figure 1 The specific implementation adopts the following technical solution: a manned aircraft-based aerial monitoring method for radiation environment, comprising the following steps:
[0027] 1. Complete preliminary preparations. Based on the topography of the target area, determine the type of manned aircraft, select aerial radiation environment monitoring equipment with good electromagnetic compatibility with the aircraft, and select ground radiation environment measurement equipment for ground anomaly verification and environmental geological background investigation. In a laboratory environment, conduct energy window setting, energy resolution and energy spectrum peak drift tests, energy spectrum linearity tests, and stability tests on the aerial radiation environment monitoring equipment and ground measurement equipment, obtain various technical indicators, and detect the radiation background levels in the front, middle, and rear compartments of the manned aircraft. Install the aerial radiation environment monitoring equipment inside the manned aircraft, check the firmness of the installation of various instruments, components, and the whole aircraft, and the correctness of the cable connections of various instruments and components. Conduct energy resolution and energy spectrum peak drift tests, energy spectrum linearity tests, stability tests, and static tests of the GPS navigation and positioning system on the installed aerial radiation environment monitoring equipment.
[0028] 2. Metrological verification of radar altimeter calibration, static calibration of standard devices for airborne radiation environment measurement models, high-altitude flight calibration in background test areas, flight calibration in dynamic test zones, and area source calibration of aerial radiation environment monitoring equipment at airports; obtaining metrological verification and calibration certificates for ground-based radiation environment measuring instruments.
[0029] 3. Based on the distribution, distance, and flight traffic of airports surrounding the target area, select an airport as a base for aerial radiation environment monitoring. Deploy the main aerial monitoring line perpendicular to the prevailing wind direction of the target area, taking into account natural geographical features. Layout connecting lines perpendicular to the main monitoring line. Set the spacing between the main monitoring line and connecting lines according to the aerial radiation environment monitoring scale, and evenly distribute check lines within the target area. Select areas near airports with flat terrain and uniform radiation environment to establish baselines for the quality of aerial monitoring data before and after each flight. Conduct aerial radiation environment monitoring using the deployed main monitoring line, connecting lines, and check lines along the terrain undulations to obtain aerial radiation environment monitoring data. Based on the geological and radiation environment conditions of the target area, deploy ground measurement points and ground soil sampling points for ground radiation environment measurement to obtain ground radiation environment data. Select relatively flat terrain without water features on the baseline. For areas with relatively uniform environmental radiation fields, baseline air-to-ground comparisons should be conducted. If fixed radiation environment monitoring points already exist within the target area, synchronous radiation environment monitoring data from all deployed measurement points should be collected, and air-to-ground data comparisons should be performed. Verify any discovered radiation anomalies, ascertain the objective circumstances of the anomalies, and determine their scale, dose rate level, and cause. Verify the radiation environment aerial monitoring flight records and operator records, verify the morning and evening test results of aerial and ground radiation environment measurements, verify the names, sizes, and records of the aerial radiation environment monitoring flight track video files, and verify the names, sizes, records, and measurement times of the original radiation environment monitoring data files. After each flight, all original data should be checked and preprocessed. The original data from each flight should be compiled and submitted. After the data preprocessing is approved, the original radiation environment monitoring data files should be archived, registered, and stored.
[0030] 4. Based on the calibration parameters, correct the preprocessed aerial radiation environment monitoring data of the preprocessed data and file and save the qualified data in step 3. Calculate the air absorbed dose rate, artificial nuclide surface activity and natural nuclide activity concentration at 1m on the ground and generate a map for analysis.
[0031] 5. Using the maps generated in step 4, complete the compilation of the final maps and report.
[0032] 6. Submit the final results report, results maps, and relevant monitoring data completed in steps 3 and 5.
[0033] The aerial radiation environment monitoring equipment in step 1 of this specific implementation method includes an aerial multichannel gamma spectrometer, a control and data acquisition system, a GPS navigation and positioning system, a radar altimeter, a barometric altimeter, a temperature sensor, a humidity sensor, etc. The ground-based radiation environment measurement equipment includes an ARD environmental NaI(Tl) gamma spectrometer, an FH40G portable X-γ dose rate meter, an FD-3013 digital gamma radiation meter, etc.
[0034] The data preprocessing in step 3 of this specific implementation method includes the following routine processing flow for single-flight measurement data: reading the original aerial survey data file, checking, correcting the energy spectrum data, calculating the specific activity of nuclides, and statistical plotting; confirming the quality of the aerial survey data for that flight, including the working status of the aerial survey system, the aerial survey flight altitude index, and the yaw index; calculating the counts of each energy window for the original energy spectrum data of the radiation environment aerial monitoring, performing various corrections, and calculating the mass activity or surface activity of nuclides. The original data includes: flight records (reports), operator records (reports), morning and evening test results, flight track video files, and the original data file of the radiation environment aerial monitoring after each flight.
[0035] The radiation environment aerial monitoring data correction and processing flow in step 4 of this specific implementation method is as follows: the preprocessed energy spectrum data is processed by energy window counting; the processed data is corrected for cosmic ray aircraft background; the corrected data is corrected for atmospheric radon; the preprocessed radar altitude data, air pressure data, and temperature data are processed for STP ground-level data; the data after atmospheric radon correction and the data after STP ground-level data are corrected by energy window stripping; the corrected data is corrected by altitude normalization; the corrected data forms radionuclide activity data and air absorbed dose rate data; and the radionuclide activity data, air absorbed dose rate data, and preprocessed GPS data form the final data processing result.
[0036] This specific implementation method first completes preliminary preparations, determines the manned aircraft type, selects and prepares aerial radiation environment monitoring equipment and ground measurement equipment, completes indoor testing of aerial and ground equipment, completes pre-installation preparation and inspection of the aerial radiation environment monitoring equipment, completes the installation of the aerial radiation environment monitoring equipment, and completes testing of the aerial radiation environment monitoring equipment inside the manned aircraft. Then, the selected and prepared aerial radiation environment monitoring equipment and ground measurement equipment are calibrated. A manned airport is selected, and the layout of the aerial radiation environment monitoring survey lines, baseline selection, and flight method determination are completed. Aerial radiation environment monitoring data is acquired, ground radiation environment measurement routes are laid out, ground radiation environment data is acquired, air-to-ground comparison measurements and radiation anomaly verification are completed, aerial and ground measurement records are checked, data preprocessing is performed promptly, original data is organized and submitted, and preprocessed qualified data is archived and preserved. Based on calibration parameters, the preprocessed aerial radiation environment monitoring data is corrected, and the air absorbed dose rate, artificial nuclide surface activity, and natural nuclide activity concentration at 1m above the ground are calculated, generating maps for analysis. Finally, the final results maps and report are compiled, and the final results report, results maps, and related monitoring data are submitted. This method can quickly acquire aerial monitoring data on the radiation environment of a target area, fully understand the changes in the radiation environment of the target area, and provide a basis for effectively identifying radiation anomalies and assessing environmental risks. This method can effectively reduce the manpower consumption of ground-based radiation environment monitoring, improve the efficiency of radiation environment monitoring, increase the speed of acquiring radiation environment data, and improve economic and social benefits.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A manned aircraft-based aerial monitoring method for radiation environment, characterized in that, Includes the following steps: (1) Complete the preliminary preparations, determine the manned aircraft type, select and prepare the radiation environment aviation monitoring equipment and ground measurement equipment, complete the indoor testing of aviation and ground equipment, complete the pre-installation preparation and inspection of the radiation environment aviation monitoring equipment, complete the installation of the radiation environment aviation monitoring equipment, and complete the testing of the manned aircraft indoor radiation environment aviation monitoring equipment. (2) Calibrate the radiation environment aerial monitoring equipment and ground measurement equipment selected and prepared in step (1); (3) Based on the radiation environment aerial monitoring equipment and ground measurement equipment calibrated in step (2), select a manned airport, complete the layout of the radiation environment aerial monitoring survey line, baseline selection and flight method determination, obtain radiation environment aerial monitoring data, complete the ground radiation environment measurement route layout, obtain ground radiation environment data, complete the air-to-ground comparison measurement and radiation anomaly verification, verify the aerial and ground measurement records, perform data preprocessing in a timely manner, organize and submit the original data, and archive and save the preprocessed qualified data. (4) Based on the calibration parameters, correct the preprocessed radiation environment aerial monitoring data of the preprocessed data that were filed and saved in step (3), calculate the air absorbed dose rate, artificial nuclide surface activity and natural nuclide activity concentration at 1m on the ground, and form a map for analysis. (5) Use the maps generated in step (4) to complete the compilation of the result maps and result report; (6) Submit the final results report, results maps and related monitoring data completed in steps (3) and (5); The specific steps (1) include the following steps: Based on the topography of the target area, determine the type of manned aircraft, select an aerial radiation environment monitoring device with good electromagnetic compatibility with the aircraft, select a ground radiation environment measurement device for ground anomaly verification and environmental geological background investigation, and conduct energy window setting, energy resolution and energy spectrum peak drift test, energy spectrum linearity test, and stability test on the aerial radiation environment monitoring device and ground measurement device in a laboratory environment, obtain various technical indicators of the test, detect the radiation background level of the front cabin, middle cabin, and tail cabin of the manned aircraft, install the aerial radiation environment monitoring device in the manned aircraft, check the firmness of the installation of various instruments, components and the whole machine and the correctness of the cable connection of various instruments and components, and conduct energy resolution and energy spectrum peak drift test, energy spectrum linearity test, stability test, and GPS navigation and positioning system static test on the installed aerial radiation environment monitoring device; The specific steps (2) include the following steps: calibration of radar altimeter of radiation environment aviation monitoring equipment over airport, static calibration of aviation radiometric measurement model standard device, high-altitude flight calibration of background test area, flight calibration of dynamic test zone, and area source calibration; obtaining the calibration certificate of radiation environment ground measurement instrument; Step (3) specifically includes the following steps: Based on the distribution, distance, and flight traffic of airports around the target area, select an airport as a base for aerial radiation environment monitoring; arrange the main measurement line of aerial radiation environment monitoring perpendicular to the prevailing wind direction of the target area and in combination with natural geographical features, arrange the connecting line perpendicular to the main measurement line, set the line spacing of the main measurement line and the line spacing of the connecting line according to the scale of aerial radiation environment monitoring, and evenly arrange the inspection line in the target area; select a flat area near the airport with uniform radiation environment, and set the baseline for the quality of aerial monitoring data of each flight before and after the monitoring data collection; conduct aerial radiation environment monitoring according to the flight method of the arranged main measurement line, connecting line, and inspection line along the terrain undulations to obtain aerial radiation environment monitoring data; Based on the geological and radiation environment conditions of the target area, ground measurement points and ground soil sampling points for radiation environment ground measurement are set up to obtain ground radiation environment data. On the baseline, select relatively flat areas with no water system distribution and a relatively uniform environmental radiation field to conduct air-to-ground comparisons. If there are already fixed radiation environment monitoring points in the target area, collect synchronous radiation environment monitoring data from all deployed measurement points and conduct air-to-ground data comparisons. Verify any discovered radiation anomalies, ascertain the objective circumstances of the anomalies, and determine their scale, dose rate level, and cause. Verify the radiation environment aerial monitoring flight records and operator records, verify the morning and evening test results of aerial and ground radiation environment measurements, verify the names, sizes, and records of the radiation environment aerial monitoring flight track video files, and verify the names, sizes, records, and measurement times of the radiation environment aerial monitoring raw data files. After each flight, all raw data are checked and preprocessed. Organize and submit the raw data after each flight. After the data preprocessing is approved, archive and preserve the radiation environment aerial monitoring raw data files.
2. The method for aerial monitoring of radiation environment based on manned aircraft according to claim 1, characterized in that, The radiation environment airborne monitoring equipment in step (1) includes an airborne multichannel gamma spectrometer, a control and data acquisition system, a GPS navigation and positioning system, a radar altimeter, a barometric altimeter, a temperature sensor, and a humidity sensor. The radiation environment ground measurement equipment includes an ARD environmental NaI(Tl) gamma spectrometer, an FH40G portable X-γ dose rate meter, and an FD-3013 digital gamma radiation meter.
3. The method for aerial monitoring of radiation environment based on manned aircraft according to claim 1, characterized in that, The data preprocessing in step (3) includes the following routine processing flow for single-flight measurement data: reading the original aerial survey data file, checking, correcting the energy spectrum data, calculating the specific activity of nuclides, and statistical plotting; confirming the quality of the aerial survey data for each flight, including the working status of the aerial survey system, the aerial survey flight altitude index, and the yaw index; calculating the count of each energy window for the original energy spectrum data of the radiation environment aerial monitoring, making various corrections, and calculating the mass activity or surface activity of nuclides.
4. The method for aerial monitoring of radiation environment based on manned aircraft according to claim 1, characterized in that, The raw data in step (3) includes: flight records after each flight, operator records, morning and evening test results, flight track video files, and raw data files of radiation environment aerial monitoring.
5. The method for aerial monitoring of radiation environment based on manned aircraft according to claim 1, characterized in that, Step (4) specifically includes the following steps: Based on the calibration parameters, the preprocessed aerial radiation environment monitoring data is corrected, and the air absorbed dose rate, artificial nuclide surface activity and natural nuclide activity concentration at 1m above the ground are calculated to form a map for analysis; The aerial radiation environment monitoring data correction process in step (4) is as follows: the preprocessed energy spectrum data is processed by energy window counting, the processed data is corrected by cosmic ray aircraft background, the corrected data is corrected by atmospheric radon, the preprocessed radar altitude data, air pressure data and temperature data are processed by STP altitude data, the data after atmospheric radon correction and the data after STP altitude data are corrected by energy window stripping, the corrected data is corrected by altitude normalization, the corrected data forms radionuclide activity data and air absorbed dose rate data, and the radionuclide activity data, air absorbed dose rate data and preprocessed GPS data form the final data processing results.
6. The method for aerial monitoring of radiation environment based on manned aircraft according to claim 1, characterized in that, Step (5) specifically includes the following steps: Based on the data processing results of step 4, compile the result maps and result report.
7. The method for aerial monitoring of radiation environment based on manned aircraft according to claim 1, characterized in that, Step (6) specifically includes the following steps: based on the result maps and result reports completed in step (5), submit the final result report, result maps and related monitoring data.