阅读说明：本技术 污染测量仪寻源定位方法、污染测量仪和设备 (Source searching and positioning method for pollution measuring instrument, pollution measuring instrument and equipment ) 是由 郑永男 张小彬 于 2020-08-13 设计创作，主要内容包括：本申请公开了一种污染测量仪寻源定位方法,包括数据采集分析系统通过所配备的通信模块获取污染测量仪中各辐射探测器的计数数据,并在获取各计数数据后将各计数数据与各辐射探测器的坐标进行匹配得到坐标阵列,其中,污染测量仪包括多个呈阵列式排布的辐射探测器,多个辐射探测器呈阵列式排布,数据采集分析系统将坐标阵列中的坐标值进行高斯拟合得到高斯面,根据高斯面进行放射源的定位,在获取到放射源的定位信息后进行存储。以使本公开的污染测量仪寻源定位方法在保证原有性能的前提下,可以给出辐射分布,方便使用者快速定位放射源的位置。(The application discloses a pollution measuring instrument source searching and positioning method, which comprises the steps that a data acquisition and analysis system acquires counting data of each radiation detector in a pollution measuring instrument through a communication module, and matches the counting data with coordinates of each radiation detector after acquiring the counting data to obtain a coordinate array, wherein the pollution measuring instrument comprises a plurality of radiation detectors which are arranged in an array mode, the plurality of radiation detectors are arranged in an array mode, the data acquisition and analysis system carries out Gaussian fitting on coordinate values in the coordinate array to obtain a Gaussian surface, the radioactive source is positioned according to the Gaussian surface, and the positioning information of the radioactive source is acquired and then stored. The pollution measuring instrument source searching and positioning method can give radiation distribution on the premise of ensuring the original performance, and is convenient for a user to quickly position the position of the radioactive source.)

1. A pollution measuring instrument source searching and positioning method is characterized by comprising the following steps:

the data acquisition and analysis system acquires counting data of each radiation detector in the pollution measuring instrument through the equipped communication module; after obtaining the counting data, matching the counting data with the coordinates of the radiation detectors to obtain a coordinate array;

the pollution measuring instrument comprises a plurality of radiation detectors which are arranged in an array manner, wherein the plurality of radiation detectors are arranged in an array manner;

the data acquisition and analysis system carries out Gaussian fitting on the coordinate values in the coordinate array to obtain a Gaussian surface; positioning the radioactive source according to the Gaussian surface, and storing after acquiring the positioning information of the radioactive source;

the data acquisition and analysis system also receives position data information through the equipped near field communication module, and matches and stores the position data information and the current counting data.

2. The method of claim 1, wherein matching the count data to coordinates of each of the radiation detectors to obtain an array of coordinates comprises:

acquiring coordinates of each radiation detector; the coordinate of the array detector is a two-dimensional coordinate;

adding each counting data to the corresponding coordinates of the radiation detector to obtain three-dimensional coordinates;

and forming a coordinate array by each three-dimensional coordinate.

3. The method of claim 1, wherein the positioning of the radiation source according to the gaussian surface is performed according to the number of vertices of the gaussian surface; wherein, when the radioactive source is positioned according to the vertex of the Gaussian surface, the method comprises the following steps:

and acquiring the number of vertexes of the Gaussian surface, and determining a radiation detector for positioning the radiation source according to the number of the vertexes.

4. The method of claim 3, wherein determining a radiation detector for positioning the radiation source based on the number of vertices comprises:

if the vertex is one and the vertex corresponds to any radiation detector, determining the radiation detector used for positioning the radioactive source as the radiation detector corresponding to the vertex; wherein the position of the radiation source is positioned below the radiation detector corresponding to the vertex.

5. The method of claim 3, wherein determining a radiation detector for positioning the radiation source based on the number of vertices comprises:

and if the number of the vertexes is more than two, determining the continuity of the vertexes, and determining a radiation detector for positioning the radiation source based on the continuity of the vertexes.

6. The method of claim 5, wherein determining a radiation detector for positioning the radiation source based on a continuity of two or more of the vertices comprises:

if more than two vertexes are continuous, determining a radiation detector used for positioning the radioactive source as a radiation detector corresponding to each vertex; wherein the position of the radiation source is positioned below the joint of the radiation detector corresponding to each vertex;

if more than two vertexes are discontinuous, determining that a radiation detector used for positioning the radiation source is a radiation detector corresponding to each vertex; and the position of the radioactive source is positioned below the radiation detector corresponding to each vertex.

7. A contamination measurement instrument, comprising: a radiation detector, a fixture and a data acquisition and analysis system capable of implementing the method of any one of claims 1 to 6;

the number of the radiation detectors is multiple, and the radiation detectors are arranged in the same plane and form a detector group together;

the fixing piece integrally fixes the detector group;

each radiation detector is in communication connection with the data acquisition and analysis system;

the data acquisition and analysis system is suitable for acquiring counting data of each radiation detector and positioning the radioactive source according to the counting data.

8. The contamination-measuring instrument of claim 7, wherein the radiation detector comprises a scintillation crystal, a light guide device, and a photoelectric conversion device;

the light guide device is of a cube structure, the scintillation crystal is attached to the light guide device, and the photoelectric conversion device is fixedly arranged on the surface of the light guide device.

9. The contamination measurement instrument of claim 7, wherein the fixture comprises an upper structural member and a lower structural member;

the upper structure component and the lower structure component are respectively arranged on two opposite sides of the detector group, the two opposite sides of the upper structure component and the two opposite sides of the lower structure component are provided with blocking frames with the same structures, the blocking frames respectively extend to the opposite sides, and the blocking frames are arranged outside the detector group in an enclosing mode.

10. A pollution measurement instrument source locating apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to carry out the method of any one of claims 1 to 6 when executing the executable instructions.

Technical Field

The disclosure relates to the technical field of radiation detection, in particular to a pollution measuring instrument source searching positioning method, a pollution measuring instrument and equipment.

Background

The existing pollution measuring instruments all use an integral probe to give an integral estimation to the radiation level in a detection sensitive area, and cannot quickly position a radiation source. When the radiation source positioning device is used in practice, a user is required to continuously adjust the position of the instrument, the position of the radiation source is judged according to the counting rate difference of the instrument at different positions, and the actual positioning is inconvenient; due to the principle defect of instrument design, the detection efficiency of radioactive sources at different positions in a sensitive area of the instrument under the same condition is greatly different, and the actual positioning is also utilized.

Disclosure of Invention

In view of this, the present disclosure provides a method for locating a source of a pollution measuring instrument, including:

the data acquisition and analysis system acquires counting data of each radiation detector in the pollution measuring instrument through the equipped communication module; after obtaining the counting data, matching the counting data with the coordinates of the radiation detectors to obtain a coordinate array;

the pollution measuring instrument comprises a plurality of radiation detectors which are arranged in an array manner, wherein the plurality of radiation detectors are arranged in an array manner;

the data acquisition and analysis system carries out Gaussian fitting on the coordinate values in the coordinate array to obtain a Gaussian surface; positioning the radioactive source according to the Gaussian surface, and storing after acquiring the positioning information of the radioactive source;

the data acquisition and analysis system also receives position data information through the equipped near field communication module, and matches and stores the position data information and the current counting data.

In one possible implementation, matching the count data with coordinates of each of the radiation detectors to obtain a coordinate array includes:

acquiring coordinates of each radiation detector; the coordinate of the array detector is a two-dimensional coordinate;

adding each counting data to the corresponding coordinates of the radiation detector to obtain three-dimensional coordinates;

and forming a coordinate array by each three-dimensional coordinate.

In a possible implementation manner, when the radioactive source is positioned according to the Gaussian surface, the positioning is carried out according to the number of vertexes of the Gaussian surface; wherein, when the radioactive source is positioned according to the vertex of the Gaussian surface, the method comprises the following steps:

and acquiring the number of vertexes of the Gaussian surface, and determining a radiation detector for positioning the radiation source according to the number of the vertexes.

In one possible implementation, determining a radiation detector for positioning the radiation source according to the number of vertices includes:

if the vertex is one and the vertex corresponds to any radiation detector, determining the radiation detector used for positioning the radioactive source as the radiation detector corresponding to the vertex; wherein the position of the radiation source is positioned below the radiation detector corresponding to the vertex.

In one possible implementation, determining a radiation detector for positioning the radiation source according to the number of vertices includes:

and if the number of the vertexes is more than two, determining the continuity of the vertexes, and determining a radiation detector for positioning the radiation source based on the continuity of the vertexes.

In one possible implementation, determining a radiation detector for positioning the radiation source based on a continuity of two or more of the vertices includes:

if more than two vertexes are continuous, determining a radiation detector used for positioning the radioactive source as a radiation detector corresponding to each vertex; wherein the position of the radiation source is positioned below the joint of the radiation detector corresponding to each vertex;

if more than two vertexes are discontinuous, determining that a radiation detector used for positioning the radiation source is a radiation detector corresponding to each vertex; and the position of the radioactive source is positioned below the radiation detector corresponding to each vertex.

According to another aspect of the present disclosure, there is also provided a contamination measuring instrument, characterized by comprising: a radiation detector, a fixture and a data acquisition and analysis system, capable of implementing any of the methods described above;

the number of the radiation detectors is multiple, and the radiation detectors are arranged in the same plane and form a detector group together;

the fixing piece integrally fixes the detector group;

each radiation detector is in communication connection with the data acquisition and analysis system;

the data acquisition and analysis system is suitable for acquiring counting data of each radiation detector and positioning the radioactive source according to the counting data.

In one possible implementation, the radiation detector includes a scintillation crystal, a light guide device, and a photoelectric conversion device;

the light guide device is of a cube structure, the scintillation crystal is attached to the light guide device, and the photoelectric conversion device is fixedly arranged on the surface of the light guide device.

In one possible implementation, the fixing member includes an upper structural member and a lower structural member;

the upper structure component and the lower structure component are respectively arranged on two opposite sides of the detector group, the two opposite sides of the upper structure component and the two opposite sides of the lower structure component are provided with blocking frames with the same structures, the blocking frames respectively extend to the opposite sides, and the blocking frames are arranged outside the detector group in an enclosing mode.

According to another aspect of the present disclosure, there is also provided a pollution measuring instrument source locating apparatus, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to execute the executable instructions to implement any of the methods described above.

Counting data of each radiation detector in the pollution measuring instrument is obtained; the pollution measuring instrument comprises a plurality of radiation detectors which are arranged in an array mode, each counting data is matched with the coordinate of each radiation detector to obtain a coordinate array, the coordinate values in the coordinate array are subjected to Gaussian fitting to obtain a Gaussian surface, and the radioactive source is positioned according to the Gaussian surface. The pollution measuring instrument source searching and positioning method can give radiation distribution on the premise of ensuring the original performance, and is convenient for a user to quickly position the position of the radioactive source.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

FIG. 1 illustrates a flow chart of a pollution meter source finding location method of an embodiment of the present disclosure;

FIG. 2 illustrates a first Gaussian schematic of a pollution meter source finding positioning method of an embodiment of the disclosure;

FIG. 3 illustrates a second Gaussian schematic diagram of a pollution meter source-finding location method according to an embodiment of the disclosure;

FIG. 4 illustrates a third Gaussian plot of a pollution meter source-finding positioning method according to an embodiment of the disclosure;

FIG. 5 illustrates a block diagram of a pollution meter source finding positioning apparatus of an embodiment of the present disclosure;

fig. 6 shows a schematic structural diagram of a contamination measurement instrument according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing or simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

Fig. 1 shows a flow chart of a pollution meter source finding positioning method according to an embodiment of the present disclosure. As shown in fig. 1, the method for locating the source of the pollution measuring instrument includes:

step S100, a data acquisition and analysis system acquires counting data of each radiation detector in a pollution measuring instrument through an equipped near field communication module, step S200, and matches the counting data with coordinates of each radiation detector after acquiring each counting data to obtain a coordinate array, wherein the pollution measuring instrument comprises a plurality of radiation detectors which are arranged in an array, the plurality of radiation detectors are arranged in an array, step S300, the data acquisition and analysis system performs Gaussian fitting on coordinate values in the coordinate array to obtain a Gaussian surface, step S400, positions a radioactive source according to the Gaussian surface, and stores the positioning information of the radioactive source after acquiring the positioning information of the radioactive source, and step S500, wherein the data acquisition and analysis system also receives data information through the equipped near field communication module and matches and stores the data with the current counting data.

The method comprises the steps that counting data of all radiation detectors in a pollution measuring instrument are obtained through a data acquisition and analysis system through a near field communication module, the counting data are matched with coordinates of all the radiation detectors after the counting data are obtained, a coordinate array is obtained, wherein the pollution measuring instrument comprises a plurality of radiation detectors which are arranged in an array mode, the radiation detectors are arranged in an array mode, the data acquisition and analysis system conducts Gaussian fitting on coordinate values in the coordinate array to obtain a Gaussian surface, the radioactive source is positioned according to the Gaussian surface, and the positioning information of the radioactive source is stored after the positioning information of the radioactive source is obtained. The pollution measuring instrument source searching and positioning method can give radiation distribution on the premise of ensuring the original performance, and is convenient for a user to quickly position the position of the radioactive source.

Specifically, referring to fig. 1, step S100 is first performed to acquire count data of each radiation detector.

In a possible implementation mode, a plurality of radiation detectors with similar performance are used for splicing, each radiation detector works independently, the plurality of radiation detectors are arranged together and fixed, the output ports of the radiation detectors are connected with the corresponding interfaces of the data acquisition and analysis system, the radiation detectors are positioned and coded at the same time, and when detection is finished within set time, detection data of each radiation detector are obtained, wherein the detection data comprise counting data, and the counting data are the number of received radioactive particles. For example, the number of the radiation detectors is nine, the arrangement is 3 × 3, when the detection is completed, the count data of the nine radiation detectors is acquired, the count data is converted from an analog signal to a digital signal, and the position information of each radiation detector is determined, that is, the coordinate information of each radiation detector is set, wherein the coordinate information is a two-dimensional coordinate like (X, Y).

It should be noted that, the number of the radiation detectors is not limited in the embodiments of the present disclosure, and the number and the arrangement of the radiation detectors may be set according to actual requirements.

Further, fig. 1 is executed, and step S200 is executed to match each count data with the coordinates of each radiation detector to obtain a coordinate array.

In a possible implementation manner, each radiation detector includes a two-dimensional coordinate, and the obtained count data is matched with the coordinates of each radiation detector to obtain a coordinate array. Wherein the form of the coordinate array is the same as the form of the connection of the radiation detectors, and exemplarily, if the radiation detectors are arranged in a 3 × 3 array, the form of the coordinate array is also the 3 × 3 array, and further, wherein the obtaining of the three-dimensional coordinates by adding each count data to the coordinates of the corresponding radiation detector further comprises: and adding the value of each counting datum serving as a Z-axis coordinate value to the coordinate of the corresponding radiation detector to obtain a three-dimensional coordinate. For example, the number of the radiation detectors is nine, the arrangement is 3 × 3, and the coordinates of the nine radiation detectors are respectively: (X)₁，Y₁)，(X₂，Y₂)，(X₃，Y₃)，(X₄， Y₄)，(X₅，Y₅)，(X₆，Y₆)，(X₇，Y₇)，(X₈，Y₈)，(X₉，Y₉) When the detection is completed, the counting data of the nine radiation detectors are acquired, wherein the counting data of the nine radiation detectors are respectively: z₁，Z₂，Z₃，Z₄，Z₅，Z，Z，Z₈，Z₉Adding the nine technical data into the coordinates of the corresponding radiation detector, namely adding the value of each counting data as a Z-axis coordinate value into the coordinates of the corresponding radiation detector to obtain three-dimensional coordinates, wherein the obtained three-dimensional coordinates are (X) respectively₁， Y₁，Z₁)，(X₂，Y₂，Z₂)，(X₃，Y₃，Z₃)，(X₄，Y₄，Z₄)，(X₅，Y₅，Z₅)， (X₆，Y₆，Z₆)，(X₇，Y₇，Z₇)，(X₈，Y₈，Z₈)，(X₉，Y₉，Z₉) The nine three-dimensional coordinates are arranged in the positions of the corresponding radiation detectors, and thus matching is completed, and a coordinate array is obtained.

Further, executing fig. 1, executing step S300, and performing gaussian fitting on the coordinate values in the coordinate array to obtain a gaussian surface.

In one possible implementation, a software interface may be used to perform gaussian fitting on the coordinate values in the coordinate array to obtain a gaussian surface, where the software interface includes one of python and Matlab, for example, if (X) is included in the coordinate array₁，Y₁，Z₁)，(X₂，Y₂，Z₂)，(X₃，Y₃，Z₃)， (X₄，Y₄，Z₄)，(X₅，Y₅，Z₅)，(X₆，Y₆，Z₆)，(X₇，Y₇，Z₇)，(X₈，Y₈， Z₈)，(X₉，Y₉，Z₉) The nine coordinates areThe coordinate values are used as a data set, and the Gaussian fitting is carried out by using Matlab to obtain a Gaussian surface.

Further, referring to fig. 1, step S400 is executed to obtain the position of the radiation source according to the gaussian surface.

In a possible implementation, when positioning the radiation source according to the gaussian surface, the positioning is performed according to the number of vertices of the gaussian surface, where when positioning the radiation source according to the vertices of the gaussian surface, the positioning method includes: and acquiring the number of vertexes of the Gaussian surface, and determining a radiation detector for positioning the radiation source according to the number of the vertexes. Wherein, confirm according to the summit number to be used for carrying out the radiation detector who fixes a position to the radiation source and need carry out the analysis according to actual conditions, including three kinds of circumstances, have a summit for the gaussian face respectively, other positions descend fast, include two or more summits with the gaussian face, other positions descend fast, and is concrete, and the radiation detector who is used for fixing a position the radiation source according to the summit number determination includes: and if the vertex is one and the vertex is the position corresponding to any radiation detector, determining that the radiation detector for positioning the radioactive source is the radiation detector corresponding to the vertex, wherein the position of the radioactive source is positioned below the radiation detector corresponding to the vertex.

Further, determining a radiation detector for positioning the radiation source according to the number of vertices further comprises: if the vertex is more than two and the vertex is the position corresponding to any radiation detector, a plurality of corresponding radiation detectors are obtained according to the vertex, the positions of the plurality of radiation detectors are obtained, the radiation detector for positioning the radioactive source is determined based on the positions of the plurality of radiation detectors, and furthermore, two conditions need to be distinguished when the radiation detector for positioning the radioactive source is determined based on the positions of the plurality of radiation detectors, including: if the positions of more than two radiation detectors are continuous (vertexes are continuous), the radioactive source is judged to be a large-area radioactive source or the radioactive source is positioned between the two radiation detectors, the position of the radioactive source is positioned below the plurality of radiation detectors, if the positions of the plurality of radiation detectors are discontinuous, the radioactive source is judged to be a plurality of radioactive sources, and the position of the radioactive source is positioned below each radiation detector. For example, nine radiation detectors are connected in a 3 × 3 arrangement, after a gaussian surface is obtained by gaussian fitting a coordinate array, if the gaussian surface includes a vertex which rapidly descends in the gaussian surface in order of distance from a radiation source, and the vertex corresponds to the radiation detector at the (2,3) position, it is determined that the radiation source is positioned below the radiation detector, if the obtained gaussian surface includes two vertices which rapidly descends in the gaussian surface in order of distance from the radiation source, and the two vertices correspond to the radiation detectors at the (2,3) and (2, 1) positions, and the two radiation detectors are adjacent to each other, it is determined that the radiation source is positioned between the radiation detector at the (2,3) position and the radiation detector at the (2, 1) position, that is, below the joint of the two radiation detectors, if the obtained gaussian surface includes two or more vertices, then determine whether the positions of the radiation detectors corresponding to the two or more vertices are continuous, for example, if three vertices are obtained, the positions of the radiation detectors corresponding to the three vertices are respectively: (1,1) (1, 2) (1, 3), the three radiation detectors are in the same row and adjacent to each other, and the three radiation detectors are consecutive, and it can be determined that the radiation source is a large-area radiation source, and the position of the radiation source is below the three radiation detectors, and in another case, the positions of the radiation detectors corresponding to the three vertices are: (1,1) (1, 3) (3, 3), which is in the radiation detector in the Gaussian plane according to the distance from the radiation source from the near to the far order rapid descending, wherein the three radiation detectors are all separated by other radiation detectors, the three radiation detectors are discontinuous, at this time, the number of the radiation sources can be determined to be a plurality, correspondingly, the positions of the radiation sources are respectively below the three radiation detectors. The positions of a plurality of radioactive sources or a single large-area radioactive source can be quickly positioned through the steps.

To further illustrate the above algorithm, a 3 × 3 surface contamination meter will be exemplified below.

1. There is only one radiation detector under which there is a radiation source.

Assuming that the radiation source is under the radiation detector 5 and the radiation detector coordinates are (2,2), typical detection results are shown in table one.

Watch 1

Coordinate X	Coordinate Y	Count Z
			1	1	21
1	2	100
			1	3	18
2	1	86
			2	2	521
2	3	106
			3	1	24
3	2	92
			3	3	20

After gaussian fitting, the three-dimensional image is shown in fig. 3. It is evident that only one of its vertices is located at the coordinates (2,2), i.e. below the radiation detector 5, and the counts of the remaining radiation detectors fall rapidly.

2. A radioactive source is arranged below two adjacent detectors

Assuming that the radiation source is under the radiation detectors 5 and 6, and the coordinates of the radiation detectors are (2,2), (2,3), typical detection results are shown in table two.

Watch two

Coordinate X	Coordinate Y	Count Z
			1	1	50
1	2	100
			1	3	96
2	1	86
			2	2	521
2	3	480
			3	1	64
3	2	92
			3	3	110

After gaussian fitting, the three-dimensional image is shown in fig. 4. It is evident that the line connecting the two vertices of the graph crosses the coordinates (2,2), (2,3), i.e. the intersection of the radiation detectors 5 and 6, and the counts of the remaining detectors fall rapidly.

3. A radioactive source is arranged below the two spaced detectors

Assuming that the radiation source is under the radiation detectors 1 and 6, and the coordinates of the radiation detectors are (1,1), (2,3), typical detection results are shown in table three.

Watch III

Coordinate X	Coordinate Y	Count Z
			1	1	560
1	2	100
			1	3	96
2	1	86
			2	2	101
2	3	480
			3	1	64
3	2	92
			3	3	110

After gaussian fitting, the three-dimensional image is shown in fig. 4. It is evident that two of its vertices are located at coordinates (1,1), (2,3), i.e. below the radiation detectors 1, 6, and the counts of the remaining detectors fall rapidly.

4. Multiple conditions occur simultaneously

If a plurality of radioactive sources are independently present under a single radiation detector and are also present at the joints of a plurality of radiation detectors, the conditions are 1, 2 and 3, and the processing mode is consistent with the mode 1, 2 and 3.

Further, in step S500, the data acquisition and analysis system also receives the position data information through the equipped near field communication module, and matches and stores the position data information with the current counting data.

In a possible implementation manner, the data acquisition and analysis system is in communication connection with the near field communication module, and when the pollution measuring instrument detects the pollution, if the near field communication module receives the data information, the received data information is matched and associated with the positioning information of the corresponding position, and the positioning information is stored in the storage medium. For example, when the contamination measuring instrument measures the human body clothing, if the near field communication modules are arranged at various positions of the clothing, for example, the near field communication modules are arranged on the left sleeve, the right sleeve and the back of the clothing, when the contamination measuring instrument performs the surrounding measurement on the clothing, if the contamination measuring instrument approaches the left sleeve, the near field communication module of the data acquisition and analysis system receives the data information in the near field communication module on the left sleeve, and the data information is matched with the counting data measured by the contamination measuring instrument at that time and is stored.

It should be noted that, although the pollution measuring instrument source locating method of the present disclosure has been described above by taking the above steps as examples, those skilled in the art will understand that the present disclosure should not be limited thereto. In fact, the user can flexibly set the pollution measuring instrument source searching and positioning method according to personal preference and/or practical application scenes as long as the required functions are achieved.

In this way, the data acquisition and analysis system acquires the counting data of each radiation detector in the pollution measuring instrument through the equipped communication module, and matches the counting data with the coordinates of each radiation detector after acquiring each counting data to obtain a coordinate array, wherein the pollution measuring instrument comprises a plurality of radiation detectors arranged in an array manner, the plurality of radiation detectors are arranged in an array manner, the data acquisition and analysis system performs Gaussian fitting on the coordinate values in the coordinate array to obtain a Gaussian surface, the data acquisition and analysis system performs positioning of the radioactive source according to the Gaussian surface, and the data acquisition and analysis system performs storage after acquiring the positioning information of the radioactive source. The pollution measuring instrument source searching and positioning method can give radiation distribution on the premise of ensuring the original performance, and is convenient for a user to quickly position the position of the radioactive source.

Still further, according to another aspect of the present disclosure, there is also provided a pollution meter source locating apparatus 200. Referring to fig. 5, the pollution measurement instrument source finding positioning apparatus 200 according to the embodiment of the disclosure includes a processor 210 and a memory 220 for storing instructions executable by the processor 210. Wherein the processor 210 is configured to execute the executable instructions to implement any of the previously described pollution-measuring instrument source-finding positioning methods.

Here, it should be noted that the number of the processors 210 may be one or more. Meanwhile, in the pollution measuring instrument source finding positioning apparatus 200 according to the embodiment of the present disclosure, an input device 230 and an output device 240 may be further included. The processor 210, the memory 220, the input device 230, and the output device 240 may be connected via a bus, or may be connected via other methods, which is not limited in detail herein.

The memory 220, which is a computer-readable storage medium, may be used to store software programs, computer-executable programs, and various modules, such as: the pollution measuring instrument source searching and positioning method of the embodiment of the disclosure corresponds to a program or a module. The processor 210 executes various functional applications and data processing of the pollution meter source locating device 200 by executing software programs or modules stored in the memory 220.

The input device 230 may be used to receive an input number or signal. Wherein the signal may be a key signal generated in connection with user settings and function control of the device/terminal/server. The output device 240 may include a display device such as a display screen.

Still further, according to another aspect of the present disclosure, there is provided a pollution measuring instrument 300, and fig. 6 shows a schematic structural diagram of the pollution measuring instrument 300 according to an embodiment of the present application. As shown in fig. 6, the contamination meter 300 includes: the radiation detectors 310, the fixing pieces and the data acquisition and analysis system can realize the source searching and positioning method of the pollution measuring instrument, wherein the number of the radiation detectors 310 is multiple, the radiation detectors 310 are arranged in the same plane, preset intervals are arranged between the adjacent radiation detectors 310 to form a detector group together, the fixing pieces integrally fix the detector group, a data line is connected between the radiation detectors 310 and the data acquisition and analysis system, and the data acquisition and analysis system acquires counting data of the radiation detectors 310 and positions a radioactive source according to the counting data.

In this embodiment, the radiation detectors 310 are modularly integrated and spliced into a detector group, so as to increase the detection area of the device and facilitate expansion. The specific structure of the fixing member is not specifically limited, and only the fixing member is required to firmly place the detector groups in the same plane, so that the plurality of radiation detectors 310 can obtain more accurate data, and unnecessary influence on positioning of the radiation source caused by height difference is reduced. Every radiation detector 310 autonomous working, during actual measurement, independently transmit data to data acquisition analytic system through the data line, data acquisition analytic system combines each detector to give sensitive area in, count and total count in every detecting element, accomplish promptly and survey radiation distribution and to the detection of radiation overall level, the position that the radiation source was located and the radiation intensity roughly can be reachd fast to the person of trying on in the art, under the prerequisite of guaranteeing current performance, fix a position the radiation source fast, the data line not only is used for data transmission to information acquisition system, still supplies power for radiation detector 310.

It should be further noted that the data acquisition and analysis system may use a gaussian fitting method for the data transmitted by the plurality of radiation detectors 310, the count rate of the radiation detector 310 is the largest and is located near the top of the gaussian surface, and the calculations of the remaining radiation detectors 310 are rapidly decreased on the gaussian surface according to the distance of the radiation source from near to far, that is, a single radiation source is rapidly and accurately positioned.

In one embodiment, the radiation detector 310 includes a scintillation crystal, a light guide device, and a photoelectric conversion device; the light guide device is of a cube structure, the scintillation crystal is attached to the lower portion of the light guide device, and the photoelectric conversion device is fixedly arranged on the surface of the light guide device.

In this embodiment, the light guide device of the radiation detector 310 is configured as a square structure, the radiation detector 310 with the square structure is more favorable for modularized splicing, and the square structure is more convenient for batch production compared with other regular shapes, and the cost is not increased without any reason.

Further, the radiation detector 310 is the prior art, and only briefly described herein, α and β rays enter or pass through the double-flash crystal, and energy is deposited in the double-flash crystal to make the crystal emit light, the light emitted by the double-flash crystal is transmitted to the silicon photomultiplier through the optical guide device, the silicon photomultiplier converts the collected optical signal into an electrical signal, and the electrical signal is processed by a subsequent circuit, and then the signal circuit transmits the converted electrical signal to the information acquisition system, and the information acquisition system performs data integration and processing.

As shown in FIG. 6, in one embodiment, the plurality of radiation detectors 310 are arranged in a number M N in the transverse and longitudinal directions.

In this embodiment, the arrangement of M × N, that is, the arrangement number of the dual-flash detectors 1 in the transverse direction and the longitudinal direction, and the number of the radiation detectors 310 that can be fixed inside the fixing member after the fixing member is produced and assembled are determined, when other fixing members are not replaced or selected, the M × N, that is, the maximum radiation detector 310 accommodating amount of the fixing member is the largest, the detection area is the largest, so that the surface contamination measuring instrument in the embodiment of the present application is more beautiful, and the structural design is more reasonable.

As shown in FIG. 6, in one embodiment, the fixture includes an upper structure 320 and a lower structure 330; the upper structural member 320 and the lower structural member 330 are respectively disposed on two opposite sides of the detector set, and the two opposite sides of the upper structural member 320 and the lower structural member 330 are provided with blocking frames having the same structure, the blocking frames respectively extend to the opposite sides, and the blocking frames are surrounded on the outer side of the detector set.

In this embodiment, the fixing member is selected to detachably connect the upper structural member 320 and the lower structural member 330, and the specific detaching manner is not limited in particular, and it is only necessary to ensure that a person skilled in the art can easily detach and mount the pollution measuring apparatus 300. The blocking frame of the upper structural member 320 and the lower structural member 330 can be reasonably sleeved outside the detector group, the specific height of the blocking frame is not specifically limited, and only the detector group can be firmly fixed by the blocking frame, and the detector group does not shake integrally.

In one embodiment, the upper structural member 320 and the lower structural member 330 have a plurality of square holes with the same size at corresponding positions, and the top and the bottom of each radiation detector 310 correspond to one square hole respectively.

In this embodiment, the upper structure member 320 and the lower structure member 330 are provided with a plurality of square holes, the square holes of the upper structure member 320 are used for reserving enough space for connecting the data lines to the radiation detector 310, thereby avoiding the problems of difficult equipment wiring and the like, moreover, the material consumption can be saved by providing the square holes, the cost is further reduced, and the entrance window is not shielded by the square holes of the lower structure member 330 because the entrance window is provided at the bottom of the radiation detector 310.

In one embodiment, the blocking frame of the lower structure 330 has a plurality of ribs disposed at intervals of the square holes, the ribs are arranged crosswise and in a grid shape, and each grid matches with the structure of the radiation detector 310.

In this embodiment, a plurality of criss-cross ribs are disposed in the blocking frame of the lower structural member 330, the whole structure is in a grid shape, the ribs are disposed at intervals of the plurality of square holes, and the ribs are disposed to limit each radiation detector 310, so that each radiation detector 310 is only matched with a group of grids corresponding to each other.

As shown in fig. 6, in one embodiment, the upper structure 320 and the lower structure 330 are provided with extending lugs on both sides thereof, and the extending lugs are provided with mounting holes at equal intervals.

In one embodiment, the light guide device has a through hole formed at a side thereof adjacent to the upper structural member 320, one end of the data line is connected to the output port of the detector body, and the other end of the data line passes through the through hole and is connected to the corresponding interface of the data acquisition and analysis system.

In one embodiment, the predetermined spacing is less than 3 mm.

In this embodiment, to further reduce the effect of the predetermined spacing on the rapid positioning of the radiation source when the radiation source is in a position between two adjacent radiation detectors 310, the predetermined spacing between two adjacent radiation detectors 310 is defined to be less than 3 mm.

In one embodiment, the upper structure 320 and the lower structure 330 are bolted together.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.