CN115793016A - Radiation monitoring system and radiation monitoring method based on visible light sensor - Google Patents

Radiation monitoring system and radiation monitoring method based on visible light sensor Download PDF

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Publication number
CN115793016A
CN115793016A CN202310073265.3A CN202310073265A CN115793016A CN 115793016 A CN115793016 A CN 115793016A CN 202310073265 A CN202310073265 A CN 202310073265A CN 115793016 A CN115793016 A CN 115793016A
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radiation
image
visible light
light sensor
receiving
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刘飞
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Jiangsu Supersense Technology Co ltd
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Jiangsu Supersense Technology Co ltd
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Abstract

The invention discloses a radiation monitoring method and a radiation monitoring system based on a visible light sensor, wherein the radiation monitoring system comprises: a radiation receiving module: comprising a visible light sensor, receiving radiation by the visible light sensor, the visible light sensor generating an electrical signal; an image forming module: the radiation receiving module is electrically connected with the visible light sensor and receives an electric signal generated by the visible light sensor in the radiation receiving module and processes the electric signal to obtain an image; an image processing module: the image forming module is electrically connected with the radiation source and is used for extracting a noise part in the image and estimating the radiation intensity according to the noise part; a data processing module: and the radiation intensity information is connected with the image processing module through signals and used for receiving the radiation intensity information obtained by the image processing module, and the change condition of the radiation intensity of the position where the radiation receiving module is located is estimated according to the radiation intensity information. The invention can realize real-time monitoring of radiation in the environment without manual monitoring and can be convenient for processing radiation intensity information.

Description

Radiation monitoring system and radiation monitoring method based on visible light sensor
Technical Field
The invention relates to the technical field of radiation detection, in particular to a radiation monitoring system and a radiation monitoring method based on a visible light sensor.
Background
In recent years, radioactive sources have been widely used in various fields such as industry, agriculture, and medicine. The radioactive source can be used as a material in a plurality of fields such as industry, agriculture, medicine and the like; on the other hand, the radioactive source can cause ionizing radiation to the human body and harm the human body.
The radiation intensity of the living environment of people needs to meet corresponding radiation standards. And the measurement of radiation intensity in the environment often needs personnel to use detection equipment such as radiation detector to detect the radiation in the region environment to be detected, and the human cost is high and the radiation in the region to be detected can not be monitored in real time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a radiation monitoring system based on a visible light sensor, which can realize real-time monitoring of radiation in the environment, does not need manual monitoring, and can conveniently process radiation intensity information.
Meanwhile, the radiation monitoring method based on the visible light sensor is provided, so that the radiation in the environment can be monitored in real time, and the radiation intensity information can be conveniently processed.
The invention is realized by the following technical scheme:
a visible light sensor-based radiation monitoring system comprising:
a radiation receiving module: comprising a visible light sensor, receiving radiation by the visible light sensor, the visible light sensor generating an electrical signal;
an image forming module: the radiation receiving module is electrically connected with the visible light sensor and receives an electric signal generated by the visible light sensor in the radiation receiving module and processes the electric signal to obtain an image;
an image processing module: the image forming module is electrically connected with the radiation source and is used for extracting a noise part in the image and estimating the radiation intensity according to the noise part;
a data processing module: and the radiation intensity information is connected with the image processing module through signals and used for receiving the radiation intensity information obtained by the image processing module, and the change condition of the radiation intensity of the position where the radiation receiving module is located is estimated according to the radiation intensity information.
Further, the data processing module includes:
a signal receiving unit: the radiation intensity information is obtained by the image receiving and processing module;
a storage unit: the radiation intensity information is electrically connected with the signal receiving unit and used for storing the radiation intensity information received by the signal receiving unit;
a data processing unit: and the radiation intensity information is electrically connected with the storage unit, can be acquired from the storage unit and is analyzed and processed.
Furthermore, a plurality of radiation receiving modules are arranged and distributed at different positions in the area to be detected;
the plurality of radiation receiving modules receive radiation at different positions and upload radiation information of the positions of the image forming modules and the image processing modules to the data processing module after the radiation receiving modules are processed by the image forming modules and the image processing module.
Further, it still includes:
a display module: the device is electrically connected with the data processing module and can display the change situation of the radiation intensity of the position where the radiation receiving module is located, which is obtained by the processing of the data processing module, in a visual mode.
Furthermore, the radiation receiving module, the image forming module and the image processing module are integrated in a camera device; the data processing module and the display module are integrated in the background server.
Further, the camera device comprises one or more of a road monitor with a visible light sensor, a network camera or a mobile phone camera.
Further, the storage unit stores standard radiation intensity information measured by the radiation monitoring system based on the visible light sensor in a safe radiation standard environment in advance.
A radiation monitoring method based on a visible light sensor comprises the following steps:
receiving radiation: receiving radiation by a visible light sensor in a camera device;
conversion of radiation energy: a PN junction in the visible light sensor receives energy generated by radiation, generates free electrons capable of moving freely, forms noise current and enables an image shot by the camera device to generate a noise part;
analyzing the radiation intensity: recognizing and extracting a noise part in the image, and estimating the radiation intensity of the position where the camera device is located by using the noise part;
data uploading: the obtained radiation intensity information of the position where the camera device is located is uploaded to a background server in real time;
and (3) analyzing and recording: and the background server analyzes and records the received radiation intensity information to obtain the change condition of the radiation intensity of the position where the camera device is located.
Further, the step of receiving radiation further comprises: installing camera devices at a plurality of positions in an area to be measured, wherein the camera devices respectively receive radiation at the positions;
the analyzing and recording step specifically comprises the following steps: and the background server analyzes and records the radiation intensity information uploaded by the camera devices at the plurality of positions to obtain the change of the radiation intensity of the positions of the camera devices in the area to be detected along with time.
Further, the step of analyzing the radiation intensity specifically includes:
making a difference image: receiving environment images continuously shot by a camera device and subtracting the images of adjacent frames to obtain a difference image of each frame image and the adjacent frames;
processing the difference image: detecting a moving object region in the difference image according to the obtained difference image, and removing the moving object region in the difference image;
extracting a noise part: detecting whether a frame image of a differential image of a moving object region is removed to contain radiation bright spots generated by noise current or not, and extracting a noise part of the image formed by the part containing the radiation bright spots;
estimating the radiation intensity: the radiation intensity at the location of the camera is estimated from the intensity of the radiated bright spots in the noisy portion of the image.
Compared with the prior art, the invention has the advantages that:
1. the radiation monitoring system and the direction based on the visible light sensor can load the corresponding program module into the camera device and monitor the radiation information of the position of the camera device. The road monitoring, the network camera or the mobile phone camera used in daily life of people are used as the camera device, and detection equipment such as a special radiation detector is not needed for detection, so that the detection cost is low; and the camera device is adopted for detection, so that long-time real-time monitoring can be realized.
2. The image processing module is adopted to separate the noise part in the picture, so that the camera device can still keep a normal camera function when radiation detection is carried out.
3. The background server is adopted to receive the radiation information detected by the camera devices at the plurality of positions, and the positions and the radiation intensity of the camera devices can be analyzed to obtain the change of the radiation intensity in the area to be detected along with the positions and the time.
Drawings
Fig. 1 is a schematic diagram illustrating a connection between a camera device and a background server in a radiation monitoring system based on a visible light sensor according to the present invention;
fig. 2 is a block diagram of the camera device and the background server;
FIG. 3 is a block diagram of a background server;
FIG. 4 is a flow chart of a radiation monitoring method based on a visible light sensor according to the present invention;
FIG. 5 is a detailed flow chart of the step of analyzing the radiation intensity in FIG. 4.
Detailed Description
The following detailed description of the present invention, taken in conjunction with the preferred embodiments and the accompanying drawings, further illustrates the present invention without limitation. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 and 4, the present invention provides a radiation monitoring method based on a visible light sensor, which uses one or more of a camera device provided with a visible light sensor, such as a road monitor, a network camera or a mobile phone camera, to monitor radiation information in a region to be measured in real time. The visible light sensor adopts a semiconductor-based sensor, and each sensor pixel is a PN junction which is reversely biased. The principle of detecting visible light by the visible light sensor is that when the visible light is incident on a PN junction of a certain sensor pixel, the energy of the visible light is absorbed and then transmitted to electrons bound on a lattice on the PN junction, and the electrons obtain energy and then become electrons capable of freely moving, so that an electric signal is formed. However, in addition to visible light, X-rays, gamma rays, and the like can transmit energy to electrons on the PN junction to have the ability to move freely, forming freely movable electrons, and forming noise currents. Based on the method, the radiation monitoring method comprises the following specific steps:
receiving radiation: receiving radiation by a visible light sensor in a camera device; specifically, the visible light sensor receives X-rays or gamma-rays emitted by the radiation source. The camera devices are arranged at a plurality of different positions of the area to be measured, and the plurality of camera devices respectively receive radiation of the positions of the camera devices.
Conversion of radiation energy: the PN junction in the visible light sensor receives energy generated by radiation and generates free electrons that can move freely, and forms a noise current and makes an image photographed by the image pickup device generate a noise portion.
Analyzing the radiation intensity: and identifying and extracting a noise part in the image, and estimating the radiation intensity of the position where the camera is positioned by using the noise part.
And (3) data uploading: uploading the obtained position information of the camera device and the obtained position radiation intensity information to a background server in real time;
and (3) analyzing and recording: the background server receives the radiation intensity information of the camera device and the position information of the camera device, analyzes and records the radiation intensity information, and obtains the change condition of the radiation intensity of the position of the camera device. The background server analyzes and records the radiation intensity information uploaded by the camera devices at the plurality of positions to obtain the change of the radiation intensity of the positions of the camera devices in the area to be detected along with time, so that the change condition of the radiation intensity in the area to be detected along with the position and the time is obtained. In order to facilitate comparison of the radiation intensity in the region to be measured, the radiation monitoring method based on the visible light sensor can be adopted to measure in a safe radiation standard environment in advance to obtain standard radiation intensity information, and the radiation intensity of the region to be measured is estimated according to comparison between the standard radiation intensity information and the radiation intensity information obtained through measurement in the region to be measured.
Wherein the standard environment of safe radiation can adopt the first-level safety standard defined for radiation in the environmental protection management method of electromagnetic radiation, i.e. the high-frequency radiation is less than 10 μ W/cm 2 The low-frequency radiation is less than 10V/m; in addition, the safe radiation standard environment can adopt other standards higher or lower than the primary safe standard according to requirements.
With further reference to fig. 5, the step of analyzing the radiation intensity specifically comprises: making a difference image: receiving environment images continuously shot by a camera device and subtracting the images of adjacent frames to obtain a difference image of each frame image and the adjacent frames; processing the differential image: detecting a moving object region in the difference image according to the obtained difference image, and removing the moving object region in the difference image; extracting a noise part: detecting whether a frame image of a differential image of a moving object region is removed contains radiation bright spots generated by image noise current, extracting a noise part of a part containing the radiation bright spots to form an image, and estimating the radiation intensity: the radiation intensity at the location of the camera is estimated from the intensity of the radiated bright spots in the noisy portion of the image.
In addition, as shown in fig. 1 and fig. 2, the present invention also provides a radiation monitoring system based on a visible light sensor, including:
a radiation receiving module: comprising a visible light sensor, receiving radiation by the visible light sensor, the visible light sensor generating an electrical signal; the radiation receiving modules are arranged in a plurality of numbers, and the radiation receiving modules are distributed in the region to be detected and are separated from each other.
An image forming module: and the radiation receiving module is electrically connected with the visible light sensor and receives and processes the electric signal generated by the visible light sensor in the radiation receiving module to obtain an image. Wherein each image forming module is operable to receive electrical signals generated by one or more radiation receiving modules; preferably, the image forming modules are provided in a plurality and correspond to the radiation receiving modules one to one, and each image forming module is used for receiving the electric signal generated by one radiation receiving module.
An image processing module: and the image forming module is electrically connected with the image forming module and used for extracting a noise part in the image and estimating the radiation intensity according to the noise part. The image processing modules are provided with a plurality of image forming modules which correspond to the image processing modules one to one.
A data processing module: the radiation intensity information is obtained by the image processing module and is received by the signal connection with the image processing module, and the change condition of the radiation intensity of the position where the radiation receiving module is located is estimated according to the radiation intensity information. The data processing module can receive radiation intensity information provided by the image processing modules corresponding to the radiation receiving modules at multiple positions, and the change conditions of radiation along with positions and time in the area to be detected are obtained according to the radiation intensity information at different positions.
A display module: the data processing module is electrically connected with the radiation receiving module and can display the change condition of the radiation intensity of the position where the radiation receiving module is positioned, which is obtained by processing of the data processing module, in a visual mode.
With further reference to fig. 3, the data processing module specifically includes:
a signal receiving unit: the image processing module is in signal connection with the radiation source and is used for receiving the radiation intensity information obtained by the image processing module;
a storage unit: the radiation intensity information is electrically connected with the signal receiving unit and used for storing the radiation intensity information received by the signal receiving unit; in addition, the storage unit stores standard radiation intensity information obtained by the radiation monitoring system based on the visible light sensor in a safe radiation standard environment in advance;
a data processing unit: the radiation intensity information in the storage unit and the standard radiation intensity information prestored in the storage unit can be adjusted and electrically connected with the storage unit, and the radiation intensity information is analyzed and processed; meanwhile, the radiation intensity information received by the storage unit is compared with the standard intensity information, and the radiation intensity of the area to be measured is estimated.
The radiation receiving module, the image forming module and the image processing module are integrated in the camera device. The radiation receiving module adopts a light sensor in the camera device, and the image forming module is composed of an image forming element of the camera device. The image processing module adopts a processing chip integrated in the camera device; if the camera device adopts road monitoring, a network camera and the like, an image processing program is loaded in a processing chip of the camera device to realize an image processing function; if the camera device is a mobile phone, a tablet, or the like, a program for performing image processing may be downloaded into the mobile phone or the tablet through a dedicated app program that can perform image processing, so as to implement an image processing function.
In summary, the radiation monitoring system and the radiation monitoring method based on the visible light sensor of the present invention can load the corresponding program module into the camera device and monitor the radiation information of the position of the camera device. The road monitoring, the network camera or the mobile phone camera used in daily life of people are used as the camera device, and detection equipment such as a special radiation detector is not needed for detection, so that the detection cost is low; and the camera device is adopted for detection, so that long-time real-time monitoring can be realized. The image processing module is adopted to separate the noise part in the picture, so that the camera device can still keep a normal camera function when radiation monitoring is carried out. The background server is adopted to receive the radiation information detected by the camera devices at the plurality of positions, and the positions and the radiation intensity of the camera devices can be analyzed to obtain the change of the radiation intensity in the area to be detected along with the positions and the time.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A radiation monitoring system based on a visible light sensor, comprising:
a radiation receiving module: comprising a visible light sensor, receiving radiation by the visible light sensor, the visible light sensor generating an electrical signal;
an image forming module: the radiation receiving module is electrically connected with the visible light sensor and receives an electric signal generated by the visible light sensor in the radiation receiving module and processes the electric signal to obtain an image;
an image processing module: the image forming module is electrically connected with the radiation source and is used for extracting a noise part in the image and estimating the radiation intensity according to the noise part;
a data processing module: and the radiation intensity information is connected with the image processing module through signals and used for receiving the radiation intensity information obtained by the image processing module, and the change condition of the radiation intensity of the position where the radiation receiving module is located is estimated according to the radiation intensity information.
2. The visible-light-sensor-based radiation monitoring system of claim 1, wherein the data processing module comprises:
a signal receiving unit: the image processing module is in signal connection with the radiation source and is used for receiving the radiation intensity information obtained by the image processing module;
a storage unit: the radiation intensity information is electrically connected with the signal receiving unit and used for storing the radiation intensity information received by the signal receiving unit;
a data processing unit: and the radiation intensity information in the storage unit can be adjusted and is electrically connected with the storage unit, and the radiation intensity information is analyzed and processed.
3. The radiation monitoring system based on the visible light sensor as set forth in claim 1, wherein the radiation receiving modules are provided in plurality, and the plurality of radiation receiving modules are distributed at different positions in the area to be measured;
the plurality of radiation receiving modules receive radiation at different positions and upload radiation information of the positions of the radiation receiving modules of the lock pins to the data processing module after the radiation is processed by the image forming module and the image processing module.
4. The visible-light-sensor-based radiation monitoring system of claim 1, further comprising:
a display module: the data processing module is electrically connected with the radiation receiving module and can display the change condition of the radiation intensity of the position where the radiation receiving module is positioned, which is obtained by processing of the data processing module, in a visual mode.
5. The radiation monitoring system based on visible light sensor as claimed in claim 4, wherein the radiation receiving module, the image forming module and the image processing module are integrated into a camera device; the data processing module and the display module are integrated in the background server.
6. The visible-light-sensor-based radiation monitoring system of claim 5, wherein the camera device comprises one or more of a road monitor with a visible light sensor, a web camera, or a cell phone camera.
7. The radiation monitoring system based on visible light sensor as claimed in claim 2, wherein the storage unit stores standard radiation intensity information measured by the radiation monitoring system based on visible light sensor in a safe radiation standard environment in advance.
8. A radiation monitoring method based on a visible light sensor is characterized by comprising the following steps:
receiving radiation: receiving radiation by a visible light sensor in a camera device;
conversion of radiation energy: a PN junction in the visible light sensor receives energy generated by radiation and generates free electrons capable of freely moving, and forms noise current and enables an image shot by the camera device to generate a noise part;
analyzing the radiation intensity: recognizing and extracting a noise part in the image, and estimating the radiation intensity of the position where the camera device is located by using the noise part;
data uploading: uploading the obtained radiation intensity information of the position where the camera device is located to a background server in real time;
and (3) analyzing and recording: and the background server analyzes and records the received radiation intensity information to obtain the change condition of the radiation intensity of the position where the camera device is located.
9. The visible-light-sensor-based radiation monitoring method of claim 8, wherein the receiving radiation step further comprises: installing camera devices at a plurality of positions in an area to be measured, wherein the camera devices respectively receive radiation at the positions;
the analyzing and recording step specifically comprises the following steps: the background server analyzes and records the radiation intensity information uploaded by the camera devices at the plurality of positions to obtain the change of the radiation intensity of the positions of the camera devices in the area to be detected along with the time.
10. The visible-light-sensor-based radiation monitoring method of claim 8, wherein the step of analyzing the radiation intensity specifically comprises:
making a difference image: receiving an environment image continuously shot by a camera device and subtracting the images of adjacent frames to obtain a difference image of each frame image and the adjacent frames;
processing the difference image: detecting a moving object region in the difference image according to the obtained difference image, and removing the moving object region in the difference image;
extracting a noise part: detecting whether a frame image of a differential image of a moving object region is removed to contain radiation bright spots generated by noise current or not, and extracting a noise part of the image formed by the part containing the radiation bright spots;
estimating the radiation intensity: the radiation intensity at the location of the camera is estimated from the intensity of the radiating bright spots in the noise part of the image.
CN202310073265.3A 2023-02-07 2023-02-07 Radiation monitoring system and radiation monitoring method based on visible light sensor Pending CN115793016A (en)

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Application publication date: 20230314