Marine nuclear radiation detection device and detection method thereof

Abstract

The invention discloses a marine nuclear radiation detection device and a detection method thereof. The device comprises a waterproof structure assembly; a buoy is arranged in the waterproof structure assembly; the buoy provides buoyancy for the device; a data processing and analyzing module, a communication and positioning module, a depth control module and an energy supply module are arranged in the buoy; a nuclear radiation sensor module is arranged below the buoy; the nuclear radiation sensor module is connected with the buoy through a pull wire and is used for detecting nuclear radiation in a marine environment; the data processing and analyzing module is used for processing and analyzing the received data; the communication and positioning module is used for sending the processed and analyzed data and the real-time sending position information of the device to a remote monitoring center or a local operator; the depth control module is used for adjusting the depth of the nuclear radiation detection device in water through the pull wire; the energy supply module supplies power to the device. The depth of the nuclear radiation detection device in water can be adjusted in real time through the pull wire, and the comprehensiveness of monitoring data is improved.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear radiation detection, and in particular to a marine nuclear radiation detection device and a detection method thereof. Background Art

[0002] With the increasing use of nuclear energy around the world, the problem of marine nuclear pollution has gradually highlighted its severity and urgency. The leakage or improper handling of nuclear contaminated materials may cause radioactive substances to enter the marine environment, causing direct harm to marine life and indirectly affecting human health through the food chain. In addition, long-term nuclear pollution may also destroy the balance of the marine ecosystem, affect the diversity of marine life and the sustainable use of fishery resources. In response to the problem of marine nuclear pollution, traditional monitoring methods often rely on fixed monitoring stations or detection equipment carried by ships. However, these methods have many limitations, such as limited monitoring range, untimely data acquisition, and complex equipment deployment and maintenance. Especially in different water layers, due to differences in environmental factors such as water flow, pressure and temperature, the radiation level of the marine environment may show significant changes, and traditional methods are difficult to effectively adapt to such changes, resulting in the accuracy and reliability of monitoring data being affected. Therefore, it is particularly important to develop a marine nuclear radiation detection device that can accurately adjust the working depth of the device in real time. Summary of the invention

[0003] The main purpose of this application is to overcome the shortcomings and deficiencies of the prior art and to provide a marine nuclear radiation detection device and a detection method thereof, which can adjust the depth of the nuclear radiation detection device in the water in real time through a traction line. This adaptive adjustment capability enables the device to adapt to changes in radiation levels in different water layers and improve the comprehensiveness and accuracy of monitoring data.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, the present application provides a marine nuclear radiation detection device, comprising: a waterproof structural component; a buoy is arranged in the waterproof structural component; the buoy provides buoyancy for the nuclear radiation detection device;

[0006] The buoy is provided with a data processing and analysis module, a communication and positioning module, a depth control module and an energy supply module; a nuclear radiation sensor module is provided below the buoy; wherein the data processing and analysis module is respectively connected with the communication and positioning module, the depth control module and the nuclear radiation sensor module;

[0007] The nuclear radiation sensor module is connected to the buoy via a traction line and is used to detect nuclear radiation in the marine environment;

[0008] The data processing and analysis module is used to process and analyze the data received from the nuclear radiation sensor module; the communication and positioning module is used to send the processed and analyzed data and the real-time transmission location information of the nuclear radiation detection device to the remote monitoring center or the local operator; the depth control module is used to adjust the depth of the nuclear radiation detection device in the water through the traction line; the energy supply module provides power for the nuclear radiation detection device.

[0009] As a preferred technical solution, the nuclear radiation sensor module includes a radiation sensor, a signal amplifier and a data converter;

[0010] Among them, the radiation sensor is used to obtain nuclear radiation data signals; the signal amplifier is used to enhance the obtained nuclear radiation data signals; and the data converter is used to convert the obtained analog data signals of nuclear radiation into digital signals.

[0011] As a preferred technical solution, the data processing and analysis module includes a microprocessor and a storage unit;

[0012] The microprocessor is used for processing and analyzing data; the storage unit is used for storing original data and processed and analyzed data.

[0013] As a preferred technical solution, the communication and positioning module includes a satellite communication module and a GPS module, an antenna, and a radio transmission device;

[0014] The satellite communication module is used to send and receive data, and the GPS module is used to determine the position of the nuclear radiation detection device; the antenna and radio transmission device are used to communicate with a remote monitoring center or a local operator.

[0015] As a preferred technical solution, the depth control module includes a pressure sensor, an electric motor and a coil;

[0016] Among them, the pressure sensor is used to monitor the underwater pressure in real time as the main indicator of the current depth of the nuclear radiation detection device; the electric motor is used to drive the coil; the coil is used to store and release the traction line to control the diving and floating of the nuclear radiation detection device.

[0017] As a preferred technical solution, the traction line includes: a metal load-bearing line, a data transmission line and a waterproof outer skin; wherein the metal load-bearing line is used to control the depth of the nuclear radiation detection device; the data transmission line is used to transmit data and electricity; and the waterproof outer skin is used to ensure the airtightness of the nuclear radiation detection device.

[0018] As a preferred technical solution, the energy supply module includes a battery compartment.

[0019] In a second aspect, the present application provides a method for detecting marine nuclear radiation, which is applied to the marine nuclear radiation detection device, and comprises the following steps:

[0020] Determine the target operating depth of the marine nuclear radiation detection device based on the requirements of the monitoring mission and the environmental conditions of the sea area;

[0021] The current working depth is detected by a pressure sensor, and the current working depth is compared with the target working depth;

[0022] If there is a deviation between the current working depth and the target working depth, the current working depth of the marine nuclear radiation detection device is adjusted to the target working depth through the depth control module;

[0023] Acquiring nuclear radiation data at a target working depth, and processing and analyzing the nuclear radiation data to obtain processed and analyzed nuclear radiation data;

[0024] The processed and analyzed nuclear radiation data is sent to a remote monitoring center or a local operator.

[0025] As a preferred technical solution, the processing and analysis include data cleaning, noise filtering, and radiation level calculation.

[0026] As a preferred technical solution, it also includes: encrypting the processed and analyzed nuclear radiation data before sending it to a remote monitoring center or a local operator.

[0027] In summary, compared with the prior art, the effective effects brought about by the technical solution provided by this application include at least:

[0028] The present application proposes a marine nuclear radiation detection device and a detection method thereof, the device comprising: a waterproof structure component; a buoy is arranged in the waterproof structure component; the buoy provides buoyancy for the nuclear radiation detection device; a data processing and analysis module, a communication and positioning module, a depth control module and an energy supply module are arranged in the buoy; a nuclear radiation sensor module is arranged below the buoy; wherein the data processing and analysis module is respectively connected with the communication and positioning module, the depth control module and the nuclear radiation sensor module; the nuclear radiation sensor module is connected with the buoy through a traction line, and is used to detect nuclear radiation lines in the marine environment; the data processing and analysis module is used to process and analyze the data received from the nuclear radiation sensor module; the communication and positioning module The bit module is used to send the processed and analyzed data and the real-time transmission position information of the nuclear radiation detection device to the remote monitoring center or the local operator; the depth control module is used to adjust the depth of the nuclear radiation detection device in the water through the traction line; the energy supply module provides power for the nuclear radiation detection device; in addition, the target working depth of the marine nuclear radiation detection device can be determined according to the requirements of the monitoring task and the environmental conditions of the sea area; the depth control module in the present application can adjust the depth of the nuclear radiation detection device in the water in real time through the traction line according to the requirements of the monitoring task and the environmental conditions of the sea area. This adaptive adjustment capability enables the device to adapt to changes in radiation levels in different water layers, thereby improving the comprehensiveness and accuracy of monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of a marine nuclear radiation detection device provided in one embodiment of the present application;

[0031] Among them, 1 is a waterproof structure component, 2 is a buoy, 3 is a communication and positioning module, 4 is an energy supply module, 5 is a data processing and analysis module, 6 is a depth control module, 7 is a traction line, and 8 is a nuclear radiation sensor module;

[0032] Figure 2 A structural diagram of a marine nuclear radiation detection device provided in one embodiment of the present application;

[0033] Among them, 301 is an antenna, 302 is a satellite communication module and a GPS module, 303 is a radio transmission device, 501 is a microprocessor, 502 is a storage unit, 401 is a battery compartment, 601 is a coil, 602 is an electric motor, 603 is a pressure sensor, 801 is a signal amplifier, 802 is a data converter, 803 is a radiation sensor, 701 is a data transmission line, 702 is a waterproof outer skin, and 703 is a metal load-bearing line;

[0034] Figure 3 A flow chart of a method for detecting marine nuclear radiation provided in accordance with an embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0036] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0037] Example:

[0038] See also Figure 1 , Figure 2 In one embodiment of the present application, a marine nuclear radiation detection device is provided, comprising: a waterproof structure component 1; a buoy 2 is arranged in the waterproof structure component 1; the buoy 2 provides buoyancy for the nuclear radiation detection device;

[0039] The buoy 2 is provided with a data processing and analysis module 5, a communication and positioning module 3, a depth control module 6 and an energy supply module 4; a nuclear radiation sensor module 8 is provided below the buoy 2; wherein the data processing and analysis module 5 is connected to the communication and positioning module 3, the depth control module 6 and the nuclear radiation sensor module 8 respectively;

[0040] The nuclear radiation sensor module is connected to the buoy 2 via a traction line 7 and is used to detect nuclear radiation in the marine environment;

[0041] The data processing and analysis module 5 is used to process and analyze the data received from the nuclear radiation sensor module 8; the communication and positioning module 3 is used to send the processed and analyzed data and the real-time transmission location information of the nuclear radiation detection device to the remote monitoring center or the local operator; the depth control module 6 is used to adjust the depth of the nuclear radiation detection device in the water through the traction line 7; the energy supply module 4 provides power for the nuclear radiation detection device.

[0042] Furthermore, the upper surface of the buoy barrel is equipped with a communication and positioning module 3 through a card slot, and the lower side is connected to the data processing and analysis module 5 and the battery compartment 401 through a thread, the data processing and analysis module 5 is connected to the battery compartment 401 through a wire for power supply, the communication and positioning module 3 is connected to the data processing and analysis module 5 through a wire, the electric motor 602 in the depth control module 6 is connected to the data processing and analysis module 5 through a wire, and the electric motor 602 is connected to the coil 601 through a gear. The coil 601 is wound around the traction line 7, and the traction line 7 includes two lines, a data transmission line 701 and a metal bearing line 703, which are wrapped by a waterproof outer skin 702. The radiation sensor 803 is connected to the data processing and analysis module through the data transmission line 701, and the metal bearing line 703 is connected to the waterproof housing of the nuclear radiation detection module through bolts.

[0043] The waterproof structural component 1 in this embodiment includes a housing and a structural support for fixing and protecting the above components, and must be able to withstand high pressure and other harsh environmental factors in the deep sea.

[0044] As one embodiment, the nuclear radiation sensor module 8 includes a radiation sensor 803, a signal amplifier 801 and a data converter 802. The radiation sensor 803 is used to obtain nuclear radiation data signals, and the nuclear radiation includes α, β, and γ rays; in addition, the radiation sensor 803 generates an electrical signal through interaction with radiation particles. The signal amplifier 801 is used to enhance the signal of the acquired nuclear radiation data, that is, to increase the amplitude of the signal through an electronic circuit so that it reaches a suitable level for processing by the data converter 802. The data converter 802 is used to convert the acquired analog data signal of nuclear radiation into a digital signal, that is, to convert it into a discrete digital form, represented in binary form.

[0045] Specifically, analog-to-digital conversion converts analog signals into digital signals through a successive approximation register analog-to-digital converter (SAR ADC). Initialization is first performed: At the beginning of the conversion, the successive approximation register (SAR) of the SAR ADC is set to an intermediate value, usually half of the maximum value it can represent. Secondly, comparison and approximation: The input analog signal is compared with the voltage generated by the DAC (digital-to-analog converter). The input of the DAC comes from the SAR, and its output voltage is adjusted according to the comparison result, gradually approaching the true value of the input analog signal. Then, bit-by-bit decision making: In each approximation step, the SAR adjusts its highest unpositioned bit and converts it to an analog voltage through the DAC, which is then compared with the input analog signal. If the output voltage of the DAC is higher than the input analog signal, this bit is set to 0; otherwise, it is set to 1. The SAR is then shifted to the next lower bit and the process is repeated. End condition: When all bits are checked and set one by one, the successive approximation process ends. At this time, the value in SAR is the digital representation of the input analog signal; the quantization step size (or quantization resolution) determines how many levels the analog signal can be subdivided into, and the quantized value is converted into binary code.

[0046] As one embodiment, the data processing and analysis module 5 is located in the buoy 2 and is used to process and analyze the data collected from the nuclear radiation sensor module 8, including data cleaning, noise filtering, radiation level calculation, etc. The data processing and analysis module 5 includes a microprocessor 501 and a storage unit 502;

[0047] The microprocessor 501 is used to process and analyze data; further, the microprocessor 501 processes input digital data according to pre-programmed instructions, performs arithmetic and logical operations, organizes the voltage configuration of other modules, and controls the workflow of other components, including the depth control module 6, receives data from the pressure sensor 603, and calculates the required depth adjustment according to preset parameters. Then, the depth control module 6 instructs the electric motor 602 to perform corresponding operations.

[0048] The storage unit 502 is used to store the original data collected from the radiation sensor 803 and the data processed and analyzed by the microprocessor 501 .

[0049] As one of the implementation modes, the communication and positioning module 3 is installed in the buoy 2, including a satellite communication module and a GPS module 302, an antenna 301, and a radio transmission device 303; the communication and positioning module 3 supports satellite communication to ensure global coverage.

[0050] The satellite communication module is used to send and receive data to ensure global communication coverage; the GPS module is used to determine the location of the nuclear radiation detection device; the antenna 301 and the radio transmission device 303 are used to communicate with a remote monitoring center or a local operator. Furthermore, the antenna 301 is used to transmit and receive electromagnetic waves, and the radio transmission device 303 is used for short-distance data communication, especially when exchanging data with a local operator or other equipment within a short distance.

[0051] As one of the embodiments, the depth control module 6 uses the traction line 7 and the pressure sensor 603 to adjust the depth and monitor it in real time. A coil 601 is placed inside, including a pressure sensor 603, an electric motor 602 and a coil 601; wherein the pressure sensor 603 is used to monitor the underwater pressure in real time as the main indicator of the current depth of the nuclear radiation detection device. According to the pressure change, the system can adjust the depth to maintain or reach the preset depth.

[0052] The electric motor 602 is used to drive the coil 601. The coil 601 is used to store and release the traction line 7 to control the diving and floating of the nuclear radiation detection device; by adjusting the length of the traction line 7, the depth of the nuclear radiation detection device in the water can be adjusted.

[0053] As one of the implementation modes, the traction line 7 is stored in the coil 601, including: a metal load-bearing line 703, a data transmission line 701 and a waterproof outer skin 702;

[0054] Among them, the metal load-bearing line 703 is used to control the depth of the nuclear radiation detection device; the data transmission line 701 is used to transmit data and electricity; and the waterproof outer skin 702 is used to ensure the airtightness of the nuclear radiation detection device.

[0055] As one embodiment, the energy supply module 4 includes a battery compartment 401 to provide power for the nuclear radiation detection device.

[0056] The nuclear radiation detection device in the present application integrates multiple functions such as radiation detection, data analysis and processing, communication and positioning, depth control, and energy supply module 4 into one device, which not only simplifies the operating process and reduces the complexity of device deployment and maintenance, but also improves the overall performance and efficiency of the system; at the same time, the integrated advanced data processing and analysis functions enable the device to perform preliminary analysis of the data on site and send it to the monitoring center in real time through the communication and positioning module 3, greatly shortening the data processing time and speeding up the response speed; in addition, the integration of the positioning function not only facilitates the rapid deployment and precise recovery of the device, but also can provide accurate geographic location information for each data point, which is of great significance for analyzing and evaluating radiation distribution.

[0057] See also Figure 3 The present application also provides a method for detecting marine nuclear radiation, which is applied to the marine nuclear radiation detection device, and comprises the following steps:

[0058] S1. Determine the target operating depth of the marine nuclear radiation detection device based on the requirements of the monitoring mission and the environmental conditions of the sea area.

[0059] Furthermore, based on previous oceanographic research, radiation distribution characteristics and related safety considerations, before or just after the device is launched into the water, the depth control system of the device is configured through remote control or a pre-set program to adjust it to the target depth. This involves the preset of the depth control module 6, such as adjusting the buoyancy, setting the length of the traction line 7, etc.

[0060] Specifically, before determining the target working depth of the marine nuclear radiation detection device, preliminary work on the nuclear radiation detection device is also required. The preliminary work includes:

[0061] (1) Calibration: Calibration (also called calibration) is a process used to determine the exact relationship between the output signal (such as count rate) of a measurement system (such as a radiation detector) and the physical quantity to be measured (such as radiation dose rate); this relationship is usually established by comparing the output of the measurement system with a known or calculable "standard" value (such as using a radioactive source of known activity). In this embodiment, Cs-137 and I-131 are used as calibration sources to help calibrate the detector and determine the relationship between signal intensity and radiation dose in order to accurately measure the radiation level of the main radioactive sources in the environment. The steps for using cesium-137 (Cs-137) and iodine-131 (I-131) as standard radiation sources are as follows:

[0062] Given the known parameters: the activity of the calibration source (A), in becquerels (Bq); the distance between the detector and the calibration source (d), in meters; the number of counts measured by the detector in a specific time (N), obtained by measurement; the dose rate constant of the calibration source (Γ), which for Cs-137 and I-131 can be found in the reference literature or in data provided by the manufacturer, in μSv / hper Bq / m 2 ;

[0063] Calculation steps:

[0064] Calculate the theoretical dose rate D theo , using the dose rate constant and activity of the calibration source to calculate the theoretical dose rate. If the calibration is performed under the condition of an infinite plane source, the dose rate can be approximated as D theo =Γ·A;

[0065] Calculate the actual count rate C meas , the count rate is the number of counts measured in a specific period of time divided by the time:

[0066] Background count rate C bg , C needs to be deducted from the actual counting rate corrected =C meas -C bg ;

[0067] Calculate the conversion factor k. Finally, the conversion factor can be calculated by dividing the theoretical dose rate by the corrected count rate:

[0068] (2) Preparation and inspection: Before deployment, the device is fully inspected to ensure that all modules, including the radiation sensor 803, the communication and positioning module 3, the depth control module 6, the energy supply module 4, etc., are in good condition. A series of ground tests are carried out to verify that all functions of the device can work as expected, especially key functions such as radiation detection, data processing, and communication capabilities. According to the predetermined monitoring tasks and sea conditions, the device is pre-configured, including setting depth adjustment parameters, monitoring frequency, data transmission interval, etc.

[0069] (3) Selection of deployment location: Evaluate and select the most suitable deployment location based on the marine environmental characteristics of the target monitoring area, including water currents, depth, marine biological activities, etc. Take into account weather conditions, ocean conditions (such as tides), and other marine activities (such as shipping and fishing), and carefully select the deployment time to reduce potential interference with the deployment and initial operation of the device.

[0070] (4) Actual deployment operation: The device is transported to the selected deployment location by boat or other means. Use GPS and other navigation tools to accurately locate the device to ensure accurate deployment. After the device is launched, initial remote or automatic commissioning is performed to ensure that the device is correctly positioned in the water, the depth adjustment system is working properly, and all systems begin to operate according to the predetermined configuration. Finally, a communication test is performed to ensure that the device can successfully transmit data back to the control center or local operator, and to verify the accuracy of GPS positioning information.

[0071] S2. Detect the current working depth through the pressure sensor and compare the current working depth with the target working depth.

[0072] S3. If there is a deviation between the current working depth and the target working depth, the current working depth of the marine nuclear radiation detection device is adjusted to the target working depth through the depth control module 6.

[0073] Furthermore, during the underwater operation of the device, the built-in pressure sensor or depth gauge continuously monitors the current depth and feeds back the data to the depth control module 6 in real time. According to the real-time monitoring data, if the current actual working depth deviates from the target working depth, the depth control module 6 automatically adjusts, such as by adjusting the length of the traction line 7 or adjusting the buoyancy device, to ensure that the device is stable at the target depth for monitoring. If an emergency or a failure in the depth adjustment system is encountered, the device can trigger an alarm and report the situation back to the control center through the communication and positioning module 3, and execute safety protocols if necessary, such as floating to the surface and waiting for recovery.

[0074] In addition, the collected working depth data and radiation monitoring data are used to analyze the performance and monitoring effect of the device at different depths and identify the optimal depth range. Based on the data analysis results, the depth adjustment strategy is optimized, including adjusting the target depth, the sensitivity of the depth adjustment, the reaction speed, etc., to improve the accuracy and efficiency of monitoring. The optimized strategy is fed back to the configuration of the device to provide a reference for future monitoring tasks.

[0075] S4. Acquire nuclear radiation data at the target working depth, process and analyze the nuclear radiation data, and obtain processed and analyzed nuclear radiation data.

[0076] S41. Before officially starting monitoring, the device will first perform a series of warm-up and self-test operations to ensure that the radiation sensor and related electronic components are in the best working condition, including checking the sensor sensitivity, power supply, signal amplifier 801 and data converter functions. Subsequently, according to a predetermined plan or remote instruction, the radiation detection mode is started. This involves activating the sensor, starting to capture radiation signals, and converting the captured signals into electrical signals for preliminary processing.

[0077] S42. Use a scintillation counter radiation sensor to continuously capture radiation types such as alpha, beta, and gamma rays. When radiation particles (such as alpha particles, beta particles, and gamma rays) enter the scintillation counter, they will collide with the scintillator; when these radiation particles interact with the scintillator material, the electrons inside the scintillator will be excited and transition to a higher energy level; when these excited electrons return to the ground state, the scintillator will release energy in the form of photons (light). The light emitted by the scintillator is captured by the photomultiplier tube or other photoelectric conversion device inside the scintillation counter. After receiving the light signal, the photomultiplier tube converts the light signal into electrons through its internal photocathode. These electrons are accelerated and multiplied by a series of multiplier electrodes (dynodes) inside the photomultiplier tube, thereby generating a noticeable current pulse. The performance of the scintillation counter and its sensitivity to radiation detection can be described and calculated by a series of parameters and formulas. These parameters include but are not limited to: Efficiency (η): Resolution describes the ability of a scintillation counter to distinguish between two close energy peaks. Resolution is usually used to describe energy spectra and is often expressed as the full width at half maximum (FWHM) of the energy peak. For a specific energy peak, the resolution R can be expressed as: The attenuation length is a measure of the intensity decay of radiation as it passes through a scintillator. For gamma rays, the attenuation length is an important parameter that affects the design and efficiency of the detector. The attenuation length L can be calculated using the Beer-Lambert law: I = I 0 exp(-μx) where I is the intensity of the ray after passing through the substance, I 0 is the initial ray intensity, μ is the attenuation coefficient, and x is the thickness of the material passed through; the count rate describes the number of radiation events detected by the detector per unit time. The count rate C can be simply expressed as: Where N is the number of radiation events detected and t is the time interval. Background radiation rate: the count rate caused by environmental radiation and cosmic rays when there is no target radiation source. This is an important baseline data and is crucial for the correction and analysis of experimental data.

[0078] This is a 24 / 7, non-stop process to ensure that no radiation events are missed. The electrical signals collected by the sensor are amplified, converted to analog-to-digital, and processed by the microprocessor 501 to convert them into specific radiation data. These data are then temporarily stored in the device's storage unit 502, awaiting transmission.

[0079] S43. According to the initial monitoring results and task requirements, the scope of radiation monitoring needs to be adjusted; for example, if an abnormal level of a certain type of radiation is detected, the sensitivity of the sensor needs to be adjusted to focus on more detailed monitoring of that type of radiation. The monitoring frequency, that is, the interval between data collection, can also be adjusted as needed. In areas with stable radiation levels, the collection frequency will be reduced to save energy and storage space; in areas with large changes or critical areas, the collection frequency will be increased to capture more details. The monitoring range and frequency are dynamically adjusted based on the analysis results and feedback of the remote monitoring center, as well as the intelligent judgment of the device itself. This optimization is based on adjustments made by manual remote instructions.

[0080] S44. Data processing and analysis, including data cleaning, noise filtering, and radiation level calculation.

[0081] Furthermore, the raw signals captured by the scintillation counter radiation sensor are usually very weak. Signal amplification is the process of increasing the amplitude of these weak signals through electronic amplifiers for better processing and analysis. Using linear amplifiers, this relationship can be expressed by the following simple formula: V out =A·V in; Where A is the voltage gain of the amplifier, i.e. the amplification factor, and A is a unitless quantity that indicates the degree to which the amplifier amplifies the signal. It also includes filtering, which involves removing unwanted frequency components or noise from the signal, retaining the signal part related to the radiation event through an analog filter, while reducing background noise or interference generated by the device itself.

[0082] Calculating radiation levels usually involves converting the cleaned signal into a quantitative measure such as radiation dose or count rate. This can be achieved by the following steps:

[0083] Count rate calculation: For pulse signals, the number of pulses in a specific time window is calculated to obtain the count rate. The count rate can directly reflect the size of the radiation activity. The count rate (C) is usually expressed as the number of radiation events detected per unit time, and the calculation formula is: C is the counting rate (in times per second, cps); N is the number of pulses detected in the time period T; T is the observation time (in seconds);

[0084] Dose rate calculation: Use the conversion factor k obtained during the calibration process to convert the count rate to the radiation dose rate (microsievert / hour (μSv / h)) using the following formula: D = C·k, where D is the dose rate (unit: microsievert / hour, μSv / h); C is the count rate (unit: cps); k is the conversion factor (unit: μSv / hour / time);

[0085] S5. Sending the processed and analyzed nuclear radiation data to a remote monitoring center or a local operator.

[0086] Furthermore, the processed and analyzed data is formatted into an XML transmission format. To ensure the security of data transmission, the data packet is encrypted before being sent, and the data content is directly encrypted using the AES symmetric encryption algorithm. According to the location of the monitoring device, a suitable communication module such as a satellite communication module and a radio module is selected; the relevant parameters of the configuration ensure that the device can connect to the network and transmit data, and the encrypted data packet is sent out through the communication and positioning module 3. After receiving the data, the remote server or monitoring center sends a reception confirmation signal or message response to the sending device to ensure the reliability of data transmission. If no reception confirmation is received within the predetermined time, or an error notification is received, the sending device attempts to resend the data and records the failed data for subsequent processing. On the device side, there is a status monitoring mechanism so that the operator can understand the status of data transmission, including the amount of data successfully sent, failed transmission attempts, etc.

[0087] Finally, use the device's GPS positioning function or other positioning technology (such as hydroacoustic positioning) to determine the exact location of the device. Ensure that the recovery team can accurately find the device. After arriving at the location of the device, perform the recovery operation. After the recovery is completed, perform a series of functional tests, including power system, sensor response, communication function, etc., to evaluate the working status of the device; download and back up the data stored inside the device, and ensure the integrity and security of the data is the focus of this step. And thoroughly clean and disinfect the device, and perform performance calibration again to ensure that the device reaches the best working condition before the next deployment.

[0088] It should be noted that, for the sake of convenience of description, the aforementioned method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited to the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously.

[0089] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0090] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above embodiments are preferred implementation modes of the present application, but the implementation modes of the present application are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present application should be equivalent replacement methods and are included in the protection scope of the present application.

Claims

1. A marine nuclear radiation detection device, characterized in that: include: Waterproof structural components; A buoy is provided in the waterproof structure component; the buoy provides buoyancy for the nuclear radiation detection device; The buoy is provided with a data processing and analysis module, a communication and positioning module, a depth control module and an energy supply module; a nuclear radiation sensor module is provided below the buoy; wherein the data processing and analysis module is respectively connected with the communication and positioning module, the depth control module and the nuclear radiation sensor module; The nuclear radiation sensor module is connected to the buoy via a traction line and is used to detect nuclear radiation in the marine environment; The data processing and analysis module is used to process and analyze the data received from the nuclear radiation sensor module; the communication and positioning module is used to send the processed and analyzed data and the real-time transmission location information of the nuclear radiation detection device to the remote monitoring center or the local operator; the depth control module is used to adjust the depth of the nuclear radiation detection device in the water through the traction line; the energy supply module provides power for the nuclear radiation detection device.

2. The marine nuclear radiation detection device according to claim 1, characterized in that: The nuclear radiation sensor module includes a radiation sensor, a signal amplifier and a data converter; Among them, the radiation sensor is used to obtain nuclear radiation data signals; the signal amplifier is used to enhance the obtained nuclear radiation data signals; and the data converter is used to convert the obtained analog data signals of nuclear radiation into digital signals.

3. The marine nuclear radiation detection device according to claim 1, characterized in that: The data processing and analysis module includes a microprocessor and a storage unit; The microprocessor is used for processing and analyzing data; the storage unit is used for storing original data and processed and analyzed data.

4. The marine nuclear radiation detection device according to claim 1, characterized in that: The communication and positioning module includes a satellite communication module and a GPS module, an antenna, and a radio transmission device; The satellite communication module is used to send and receive data, and the GPS module is used to determine the location of the nuclear radiation detection device; the antenna and radio transmission device are used to communicate with a remote monitoring center or a local operator.

5. The marine nuclear radiation detection device according to claim 1, characterized in that: The depth control module includes a pressure sensor, an electric motor and a coil; Among them, the pressure sensor is used to monitor the underwater pressure in real time as the main indicator of the current depth of the nuclear radiation detection device; the electric motor is used to drive the coil; the coil is used to store and release the traction line to control the diving and floating of the nuclear radiation detection device.

6. The marine nuclear radiation detection device according to claim 1, characterized in that: The traction line includes: a metal load-bearing line, a data transmission line and a waterproof outer skin; Among them, the metal load-bearing line is used to control the depth of the nuclear radiation detection device; the data transmission line is used to transmit data and electricity; and the waterproof outer skin is used to ensure the airtightness of the nuclear radiation detection device.

7. The marine nuclear radiation detection device according to claim 1, characterized in that: The energy supply module includes a battery compartment.

8. A method for detecting marine nuclear radiation, characterized in that: A marine nuclear radiation detection device applied to any one of claims 1 to 7, comprising the following steps: Determine the target operating depth of the marine nuclear radiation detection device based on the requirements of the monitoring mission and the environmental conditions of the sea area; The current working depth is detected by a pressure sensor, and the current working depth is compared with the target working depth; If there is a deviation between the current working depth and the target working depth, the current working depth of the marine nuclear radiation detection device is adjusted to the target working depth through the depth control module; Acquiring nuclear radiation data at a target working depth, and processing and analyzing the nuclear radiation data to obtain processed and analyzed nuclear radiation data; The processed and analyzed nuclear radiation data is sent to a remote monitoring center or a local operator.

9. A method for detecting marine nuclear radiation according to claim 8, characterized in that: The processing and analysis include data cleaning, noise filtering, and radiation level calculation.

10. A method for detecting marine nuclear radiation according to claim 8, characterized in that: Also includes: The processed and analyzed nuclear radiation data is encrypted before being sent to a remote monitoring center or a local operator.

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