CN110161548A - A kind of method, apparatus and dosage rate detector of dosage rate detection - Google Patents
A kind of method, apparatus and dosage rate detector of dosage rate detection Download PDFInfo
- Publication number
- CN110161548A CN110161548A CN201910568301.7A CN201910568301A CN110161548A CN 110161548 A CN110161548 A CN 110161548A CN 201910568301 A CN201910568301 A CN 201910568301A CN 110161548 A CN110161548 A CN 110161548A
- Authority
- CN
- China
- Prior art keywords
- response signal
- rdaiation response
- time
- value
- signal statistics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
- G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
- G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
- G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/48—Matching video sequences
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- High Energy & Nuclear Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Artificial Intelligence (AREA)
- Computing Systems (AREA)
- Databases & Information Systems (AREA)
- Evolutionary Computation (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Software Systems (AREA)
- Measurement Of Radiation (AREA)
Abstract
The embodiment of the invention discloses the method, apparatus and dosage rate detector of a kind of detection of wide-range high radiation field dosage rate, obtain the video image of the radiation field acquired within the current integration time；According to the distribution of rdaiation response signal in video image, the computation rule to match with video image is searched, and determines the rdaiation response signal statistics value of radiation field according to computation rule；Judge whether rdaiation response signal statistics value meets preset condition.If it is not, adjusting the value of the time of integration according to the value of rdaiation response signal statistics value and preset adjustment rule；Using the time of integration adjusted as the current integration time, the rdaiation response signal statistics value of radiation field is recalculated.If so, the corresponding relationship library according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish, is determined and current integration time, the matched target dose rate of rdaiation response signal statistics value institute.The program can fast and accurately estimate the radioactive level of radiation field.
Description
Technical field
The present invention relates to radiation field technical fields, more particularly to a kind of side of wide-range high radiation field dosage rate detection
Method, device and dosage rate detector.
Background technique
The initial stage of operation in radioactive environment needs to measure nuclear facilities periphery whole body activity level, but right
In the elimination of nuclear facilities, due to some historical reasons, data deficiencies need to obtain facility internal environment and radioactive level information,
Formulate retired scheme.For nuclear accident, needs to be quickly obtained live radioactive level information by force due to sudden, formulate emergency
Strategy simultaneously carries out action.In face of complicated and unknown environment, a kind of strong environmental suitability, detection broad quantum, the detection upper limit are needed
High nuclear radiation detector.
The detection range of nuclear radiation detector employed in traditional approach is narrow, and the detection upper limit is not high enough, and in complicated core
It is easily damaged in decommissioning or Nuclear Accident Emergency environment, cannot accurately estimate radioactive level.
It is that those skilled in the art are urgently to be resolved as it can be seen that how fast and accurately to estimate the radioactive level of radiation field
Problem.
Summary of the invention
The purpose of the embodiment of the present invention is that providing the method, apparatus and agent of a kind of wide-range high radiation field dosage rate detection
Dose rate detector can fast and accurately estimate the radioactive level of radiation field.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of side of wide-range high radiation field dosage rate detection
Method, comprising:
Obtain the video image of the radiation field acquired within the current integration time；
According to the distribution of rdaiation response signal in the video image, searches the calculating to match with the video image and advise
Then, and according to the computation rule rdaiation response signal statistics value of the radiation field is determined；
Judge whether the rdaiation response signal statistics value meets preset condition；
If it is not, then according to the value of the rdaiation response signal statistics value and preset adjustment rule, adjustment product
Value between timesharing, and using the time of integration adjusted as the current integration time；And the acquisition is returned in current integration
The step of video image of the radiation field of interior acquisition；
If so, the corresponding relationship library according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish,
It determines and the current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
Optionally, the distribution according to rdaiation response signal in the video image is searched and the video image phase
Matched computation rule, and determine that the rdaiation response signal statistics value of the radiation field includes: according to the computation rule
Whether the every frame image for judging the video image includes rdaiation response signal；
If so, calculating the rdaiation response signal statistics value of the radiation field；
If it is not, then occur the quantity of the frame image of rdaiation response signal in the statistical unit time, and using the quantity as
Rdaiation response signal statistics value.
Optionally, the rdaiation response signal statistics value for calculating the radiation field includes:
The background noise of every frame image of the video image is deducted, statistics deducts every frame figure after background noise
As the gray value of each pixel；
According to the gray value of every each pixel of frame image, the average gray of the video image is calculated, and by the gray scale
Rdaiation response signal statistics value of the average value as the radiation field.
Optionally, the time of integration, dosage rate and rdaiation response signal statistics value corresponding relationship library establishment process
Include:
Record the rdaiation response signal statistics value that simultaneously statistical picture sensor is corresponding in initial integration time；Wherein,
Described image sensor is placed in immediately ahead of scale radioactive source under original state, and described image sensor is placed in its spy
The position that measurement journey is minimized；
Gladient rule is adjusted according to the preset time, the value of initial integration time is adjusted, obtains the target time of integration；
It records and counts described image sensor rdaiation response signal statistics corresponding within the target time of integration
Value, to obtain the corresponding relationship in same dose rate lower integral time and rdaiation response signal statistics value；
When changing the radiation dose rate of described image sensor, then the record and statistical picture sensing are returned
The step of device rdaiation response signal statistics value corresponding in initial integration time, to obtain the time of integration-dosage rate-radiation
The corresponding relationship of response signal statistical value；Until the detection range of described image sensor is maximized, then end operation.
Optionally, the correspondence of the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish in the foundation
Relationship library, determine with after the current integration time, the matched target dose rate of rdaiation response signal statistics value institute
Further include:
Show the target dose rate.
Optionally, the correspondence of the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish in the foundation
Relationship library, determine with after the current integration time, the matched target dose rate of rdaiation response signal statistics value institute
Further include:
Store the radiation field video image and corresponding target dose rate.
The embodiment of the invention also provides a kind of wide-range high radiation field dosage rate detection device, including acquiring unit,
Determination unit, judging unit, adjustment unit and matching unit；
The acquiring unit, for obtaining the video image of the radiation field acquired within the current integration time；
The determination unit is searched and the video for the distribution according to rdaiation response signal in the video image
The computation rule that image matches, and determine according to the computation rule rdaiation response signal statistics value of the radiation field；
The judging unit, for judging whether the rdaiation response signal statistics value meets preset condition；If it is not, then touching
Send out adjustment unit described；If so, triggering the determination unit；
The adjustment unit, for according to the value of the rdaiation response signal statistics value and preset adjustment rule
Then, the value of the time of integration is adjusted, and using the time of integration adjusted as the current integration time；And it returns to the acquisition and is working as
The step of video image of the radiation field acquired in the preceding time of integration；
The matching unit, for according to the time of integration, dosage rate and the rdaiation response signal statistics value pre-established
Corresponding relationship library is determined and the current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
Optionally, the determination unit includes judgment sub-unit, computation subunit and statistics subelement；
The judgment sub-unit, for judging whether every frame image of the video image includes rdaiation response letter
Number；If so, triggering the computation subunit；If it is not, then triggering the statistics subelement；
The computation subunit, for calculating the rdaiation response signal statistics value of the radiation field；
The statistics subelement, for occurring the quantity of the frame image of rdaiation response signal in the statistical unit time, and will
The quantity is as rdaiation response signal statistics value.
Optionally, the computation subunit is specifically used for detaining the background noise of every frame image of the video image
It removes, statistics deducts the gray value of every each pixel of frame image after background noise；According to the gray value of every each pixel of frame image, calculate
The average gray of the video image, and using the average gray as the rdaiation response signal statistics of the radiation field
Value.
Optionally, it is directed to the time of integration, the corresponding relationship library of dosage rate and rdaiation response signal statistics value is built
Vertical process, described device further includes recording unit and time adjustment unit；
The recording unit, the rdaiation response for recording and statistical picture sensor is corresponding in initial integration time
Signal statistics value；Wherein, described image sensor is placed in immediately ahead of scale radioactive source under original state, and by described image
Sensor is placed in it and detects the position that range is minimized；
The time adjustment unit adjusts taking for initial integration time for adjusting gladient rule according to the preset time
Value, obtains the target time of integration；
It is corresponding within the target time of integration that the recording unit is also used to record and count described image sensor
Rdaiation response signal statistics value, with obtain the same dose rate lower integral time it is corresponding with rdaiation response signal statistics value close
System；
When changing the radiation dose rate of described image sensor, then the recording unit is returned to, to be accumulated
The m- dosage rate of timesharing-rdaiation response signal statistics value corresponding relationship；Until the detection range of described image sensor takes maximum
It is worth, then end operation.
It optionally, further include display unit；
The display unit, the time of integration, dosage rate and rdaiation response signal system for being pre-established in the foundation
The corresponding relationship library of evaluation is determined and the current integration time, the matched target of rdaiation response signal statistics value institute
After dosage rate, the target dose rate is shown.
It optionally, further include storage unit；
The storage unit, the time of integration, dosage rate and rdaiation response signal system for being pre-established in the foundation
The corresponding relationship library of evaluation is determined and the current integration time, the matched target of rdaiation response signal statistics value institute
After dosage rate, store the radiation field video image and corresponding target dose rate.
The embodiment of the invention also provides a kind of dosage rate detector, including imaging sensor and sensed with described image
The processor of device connection；
Described image sensor, for acquiring the video image of the radiation field within the current integration time；And by the video
Image transmitting is to the processor；
The processor, for receiving the video image of described image sensor transmission；According to spoke in the video image
The distribution of response signal is penetrated, searches the computation rule to match with the video image, and determine according to the computation rule
The rdaiation response signal statistics value of the radiation field；
The processor is also used to judge whether the rdaiation response signal statistics value meets preset condition；If it is not, then root
According to the value of the rdaiation response signal statistics value and preset adjustment rule, the value of the time of integration is adjusted, and will
The time of integration adjusted is as the current integration time；And it triggers described image sensor and resurveys within the current integration time
The video image of radiation field；If so, pair according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish
It should be related to library, determine and the current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
Optionally, light shield layer is provided on the outside of described image sensor.
Optionally, the circuit board of described image sensor is connect with the mainboard of the processor using FPC winding displacement.
The video image of the radiation field acquired within the current integration time is obtained it can be seen from above-mentioned technical proposal；Root
According to the distribution of rdaiation response signal in video image, the computation rule to match with video image is searched, and according to the calculating
Rule determines the rdaiation response signal statistics value of radiation field；The value of rdaiation response signal statistics value will have a direct impact on radiation field
The accuracy of dosage rate assessment.Therefore, it is necessary to judge whether rdaiation response signal statistics value meets preset condition.Work as rdaiation response
When signal statistics value is unsatisfactory for preset condition, then illustrate that the value of rdaiation response signal statistics value is unreasonable, it at this time can basis
The value of rdaiation response signal statistics value and preset adjustment rule adjust the value of the time of integration, and will be after adjustment
The time of integration as the current integration time；And return to the video figure for obtaining the radiation field acquired within the current integration time
The step of picture, recalculates the rdaiation response signal statistics value of radiation field.When rdaiation response signal statistics value meets preset condition
When, then illustrate that the value of rdaiation response signal statistics value is in zone of reasonableness, when at this time can be according to the integral pre-established
Between, the corresponding relationship library of dosage rate and rdaiation response signal statistics value, determine and current integration time, rdaiation response signal united
The matched target dose rate of evaluation institute.Estimating for radiation field dose rate is carried out according to the technical solution, can fast and accurately be estimated
Count the radioactive level of radiation field.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in the embodiment will be done simply below
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the method for wide-range high radiation field dosage rate detection provided in an embodiment of the present invention；
Fig. 2 is that a kind of the corresponding of the time of integration-dosage rate-rdaiation response signal statistics value provided in an embodiment of the present invention is closed
It is curve graph；
Fig. 3 is a kind of structural representation of the device of wide-range high radiation field dosage rate detection provided in an embodiment of the present invention
Figure；
Fig. 4 is a kind of structural schematic diagram of dosage rate detector provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are without making creative work, obtained every other
Embodiment belongs to the scope of the present invention.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Next, a kind of side of wide-range high radiation field dosage rate detection provided by the embodiment of the present invention is discussed in detail
Method.Fig. 1 is a kind of flow chart of the method for wide-range high radiation field dosage rate detection provided in an embodiment of the present invention, this method packet
It includes:
S101: the video image of the radiation field acquired within the current integration time is obtained.
Under original state, the current integration time is pre-set initial integration time.
In embodiments of the present invention, it can use the video of the imaging sensor acquisition radiation field with radiation detection function
Image.
S102: according to the distribution of rdaiation response signal in video image, searching the computation rule to match with video image,
And the rdaiation response signal statistics value of radiation field is determined according to computation rule.
Rdaiation response signal statistics value is proportional to the time of integration, and under the conditions of same dose rate, the time of integration is smaller,
Rdaiation response semaphore statistical value can be smaller.Conversely, the time of integration is bigger, rdaiation response semaphore statistical value can be bigger.
In embodiments of the present invention, can using in video image rdaiation response signal distribution situation as radiation field dosage
The assessment foundation of rate height.High-radiation field dosage rate and the difference of computation rule corresponding to the dosage rate of Low emissivity field.Specifically, can
To judge whether every frame image of video image includes rdaiation response signal.
The influence of radiation ray in raying field, imaging sensor acquisition image in can have rdaiation response signal.When
When every frame image of video image includes rdaiation response signal, then illustrate that radiation field belongs to high dose rate radiation environment, this
When can calculate video image rdaiation response semaphore average value by way of, obtain radiation field rdaiation response signal system
Evaluation.
Rdaiation response signal belongs to increment signal, in the concrete realization, can be to the background of every frame image of video image
Noise is deducted, and statistics deducts the gray value of every each pixel of frame image after background noise；According to every each pixel of frame image
Gray value calculates the average gray of video image, and using average gray as the rdaiation response signal statistics value of radiation field.
When only having in partial frame image in video image includes rdaiation response signal, then illustrate that radiation field belongs to low dosage
Rate radiation environment, at this time can to occur the quantity of the frame image of rdaiation response signal in the statistical unit time, and using quantity as
Rdaiation response signal statistics value.
S103: judge whether rdaiation response signal statistics value meets preset condition.
The value of rdaiation response signal statistics value will have a direct impact on the accuracy of radiation field dose rate assessment.
Preset condition may include the reasonable value range of rdaiation response signal statistics value.The reasonable value range can be by
Staff presets.
When rdaiation response signal statistics value is unsatisfactory for preset condition, then illustrate the value of rdaiation response signal statistics value not
Rationally, S104 can be executed at this time.When rdaiation response signal statistics value meets preset condition, then illustrate that rdaiation response signal is united
The value of evaluation is in zone of reasonableness, can execute S105 at this time.
S104: according to the value of rdaiation response signal statistics value and preset adjustment rule, the time of integration is adjusted
Value, and using the time of integration adjusted as the current integration time；And return to S101.
When the value of rdaiation response signal statistics value is larger, then illustrate that data processing amount is larger, in order to promote dosage rate
The accuracy estimated can turn the value of the time of integration down；Similarly, when the value of rdaiation response signal statistics value is smaller, then
The value of the time of integration can be tuned up.
It may include the adjustment gradient relation of rdaiation response signal statistics value and the time of integration in adjustment rule.For example,
The value range of rdaiation response signal statistics value can be divided into multiple gradients, there is its corresponding integral under each gradient
Time.The value of the time of integration specifically can be set to following several: 1/25s, 1/50s, 1/100s, 1/120s, 1/240s, 1/
480s、1/1000s、1/2000s、1/4000s、1/8000s。
After adjusting the time of integration, need to recalculate the rdaiation response signal statistics value of radiation field, namely integrate in adjustment
After time, need to return to S101.
S105: according to the corresponding relationship library of the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish, really
It makes and current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
In embodiments of the present invention, can be by way of scenario simulation, the time of integration, dosage rate and the spoke that pre-establish
Penetrate the corresponding relationship library of response signal statistical value.
In the concrete realization, imaging sensor can be placed in immediately ahead of scale radioactive source, and in the initial state,
Imaging sensor is placed in it and detects the position that range is minimized.The time of integration is fixed at this time, opens scale radioactive source, mould
The rdaiation response signal statistics value that quasi- system records and statistical picture sensor is corresponding in initial integration time.Then according to
The preset time adjusts gladient rule, adjusts the value of initial integration time, obtains the target time of integration；Record simultaneously statistical picture
Sensor rdaiation response signal statistics value corresponding within the target time of integration, to obtain in the same dose rate lower integral time
With the corresponding relationship of rdaiation response signal statistics value.
In order to further obtain the corresponding relationship between the time of integration, dosage rate and rdaiation response signal statistics value three,
The radiation dose rate of imaging sensor can successively be changed.By changing imaging sensor at a distance from scale radioactive source,
So that the radiation dose rate of imaging sensor changes.
When changing the radiation dose rate of imaging sensor, then return recording and statistical picture sensor are initial
In the time of integration the step of corresponding rdaiation response signal statistics value, to obtain the time of integration-dosage rate-rdaiation response letter
The corresponding relationship of number statistical value；Until the detection range of imaging sensor is maximized, then end operation.
Fig. 2 is the obtained time of integration-dosage rate-rdaiation response signal by taking the time of integration of four different values as an example
The corresponding relationship curve graph of statistical value.From figure 2 it can be seen that rdaiation response signal statistics value and being positively correlated property of dosage rate.
After the value of current integration time and rdaiation response signal statistics value determines, according to what is recorded in corresponding relationship library
The time of integration-dosage rate-rdaiation response signal statistics value corresponding relationship, can find and current integration time, rdaiation response
The matched dosage rate of signal statistics value institute.In order to mutually be distinguished with the dosage rate in corresponding relationship library, the dosage that can will match to
Rate is referred to as target dose rate.
The video image of the radiation field acquired within the current integration time is obtained it can be seen from above-mentioned technical proposal；Root
According to the distribution of rdaiation response signal in video image, the computation rule to match with video image is searched, and according to the calculating
Rule determines the rdaiation response signal statistics value of radiation field；The value of rdaiation response signal statistics value will have a direct impact on radiation field
The accuracy of dosage rate assessment.Therefore, it is necessary to judge whether rdaiation response signal statistics value meets preset condition.Work as rdaiation response
When signal statistics value is unsatisfactory for preset condition, then illustrate that the value of rdaiation response signal statistics value is unreasonable, it at this time can basis
The value of rdaiation response signal statistics value and preset adjustment rule adjust the value of the time of integration, and will be after adjustment
The time of integration as the current integration time；And return to the video figure for obtaining the radiation field acquired within the current integration time
The step of picture, recalculates the rdaiation response signal statistics value of radiation field.When rdaiation response signal statistics value meets preset condition
When, then illustrate that the value of rdaiation response signal statistics value is in zone of reasonableness, when at this time can be according to the integral pre-established
Between, the corresponding relationship library of dosage rate and rdaiation response signal statistics value, determine and current integration time, rdaiation response signal united
The matched target dose rate of evaluation institute.Estimating for radiation field dose rate is carried out according to the technical solution, can fast and accurately be estimated
Count the radioactive level of radiation field.
In embodiments of the present invention, the dosage rate detection result of radiation field is observed for the ease of user, it can be according to pre-
The corresponding relationship library of the time of integration, dosage rate and rdaiation response signal statistics value first established, determine with the current integration time,
After the matched target dose rate of rdaiation response signal statistics value institute, target dose rate is shown.
For the ease of the subsequent analysis to radiation field environment, can according to pre-establish the time of integration, dosage rate and
The corresponding relationship library of rdaiation response signal statistics value is determined to be matched with current integration time, rdaiation response signal statistics value
Target dose rate after, store radiation field video image and corresponding target dose rate.
Fig. 3 is a kind of structural representation of the device of wide-range high radiation field dosage rate detection provided in an embodiment of the present invention
Figure, including acquiring unit 31, determination unit 32, judging unit 33, adjustment unit 34 and matching unit 35；
Acquiring unit 31, for obtaining the video image of the radiation field acquired within the current integration time；
Determination unit 32, for the distribution according to rdaiation response signal in video image, lookup matches with video image
Computation rule, and determine according to computation rule the rdaiation response signal statistics value of radiation field；
Judging unit 33, for judging whether rdaiation response signal statistics value meets preset condition；If it is not, then triggering adjustment
Unit 34；If so, triggering determination unit 35；
Adjustment unit 34, for adjusting according to the value of rdaiation response signal statistics value and preset adjustment rule
The value of the whole time of integration, and using the time of integration adjusted as the current integration time；And trigger acquiring unit 31；
Matching unit 35, for pair according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish
It should be related to library, determine and current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
Optionally, determination unit includes judgment sub-unit, computation subunit and statistics subelement；
Judgment sub-unit, for judging whether every frame image of video image includes rdaiation response signal；If so,
Trigger computation subunit；If it is not, then triggering statistics subelement；
Computation subunit, for calculating the rdaiation response signal statistics value of radiation field；
Subelement is counted, for occurring the quantity of the frame image of rdaiation response signal in the statistical unit time, and by quantity
As rdaiation response signal statistics value.
Optionally, computation subunit is specifically used for being deducted the background noise of every frame image of video image, counts
The gray value of every each pixel of frame image after deducting background noise；According to the gray value of every each pixel of frame image, video figure is calculated
The average gray of picture, and using average gray as the rdaiation response signal statistics value of radiation field.
Optionally, be directed to the time of integration, dosage rate and rdaiation response signal statistics value corresponding relationship library foundation
Journey, device further include recording unit and time adjustment unit；
Recording unit, the rdaiation response signal for recording and statistical picture sensor is corresponding in initial integration time
Statistical value；Wherein, imaging sensor is placed in immediately ahead of scale radioactive source under original state, and imaging sensor is placed in
It detects the position that range is minimized；
Time adjustment unit adjusts the value of initial integration time, obtains for adjusting gladient rule according to the preset time
To the target time of integration；
The rdaiation response letter that recording unit is also used to record and statistical picture sensor is corresponding within the target time of integration
Number statistical value, to obtain the corresponding relationship in same dose rate lower integral time and rdaiation response signal statistics value；
When changing the radiation dose rate of imaging sensor, then return recording unit, to obtain the time of integration-agent
Dose rate-rdaiation response signal statistics value corresponding relationship；Until the detection range of imaging sensor is maximized, then terminate to grasp
Make.
It optionally, further include display unit；
Display unit, in pair according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish
It should be related to library, determine to show mesh with after current integration time, the matched target dose rate of rdaiation response signal statistics value institute
Mark dosage rate.
It optionally, further include storage unit；
Storage unit, in pair according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish
It should be related to library, determine to store spoke with after current integration time, the matched target dose rate of rdaiation response signal statistics value institute
Penetrate field video image and corresponding target dose rate.
The explanation of feature may refer to the related description of embodiment corresponding to Fig. 1 in embodiment corresponding to Fig. 3, here no longer
It repeats one by one.
The video image of the radiation field acquired within the current integration time is obtained it can be seen from above-mentioned technical proposal；Root
According to the distribution of rdaiation response signal in video image, the computation rule to match with video image is searched, and according to the calculating
Rule determines the rdaiation response signal statistics value of radiation field；The value of rdaiation response signal statistics value will have a direct impact on radiation field
The accuracy of dosage rate assessment.Therefore, it is necessary to judge whether rdaiation response signal statistics value meets preset condition.Work as rdaiation response
When signal statistics value is unsatisfactory for preset condition, then illustrate that the value of rdaiation response signal statistics value is unreasonable, it at this time can basis
The value of rdaiation response signal statistics value and preset adjustment rule adjust the value of the time of integration, and will be after adjustment
The time of integration as the current integration time；And return to the video figure for obtaining the radiation field acquired within the current integration time
The step of picture, recalculates the rdaiation response signal statistics value of radiation field.When rdaiation response signal statistics value meets preset condition
When, then illustrate that the value of rdaiation response signal statistics value is in zone of reasonableness, when at this time can be according to the integral pre-established
Between, the corresponding relationship library of dosage rate and rdaiation response signal statistics value, determine and current integration time, rdaiation response signal united
The matched target dose rate of evaluation institute.Estimating for radiation field dose rate is carried out according to the technical solution, can fast and accurately be estimated
Count the radioactive level of radiation field.
Fig. 4 is a kind of structural schematic diagram of dosage rate detector 40 provided in an embodiment of the present invention, including imaging sensor
41 and the processor 42 that is connect with imaging sensor；
Imaging sensor 41, for acquiring the video image of the radiation field within the current integration time；And video image is passed
Transport to processor 42；
Processor 42, for receiving the video image of the transmission of imaging sensor 41；Believed according to rdaiation response in video image
Number distribution, search the computation rule to match with video image, and the rdaiation response of radiation field is determined according to computation rule
Signal statistics value；
Processor 42 is also used to judge whether rdaiation response signal statistics value meets preset condition；If it is not, then according to radiation
The value of response signal statistical value and preset adjustment rule, adjust the value of the time of integration, and by product adjusted
The current integration time is used as between timesharing；And trigger the video that imaging sensor 41 resurveys the radiation field within the current integration time
Image；If so, the corresponding relationship library according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish, really
It makes and current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
In embodiments of the present invention, it for the interference of infrared radiation-isolating, ultraviolet radioactive and visible light, can be passed in image
Light shield layer is set on the outside of sensor.
In the concrete realization can be individually designed by the mainboard of the circuit board of imaging sensor and processor, it is arranged using FPC
Line connects the mainboard of the circuit board of imaging sensor and processor.
Dosage rate detector includes imaging sensor and connect with imaging sensor it can be seen from above-mentioned technical proposal
Processor；Imaging sensor, for acquiring the video image of the radiation field within the current integration time；And by transmission of video images
To processor；Processor is used to receive the video image of imaging sensor transmission；According to rdaiation response signal in video image
The computation rule to match with video image is searched in distribution, and the rdaiation response signal of radiation field is determined according to computation rule
Statistical value.The value of rdaiation response signal statistics value will have a direct impact on the accuracy of radiation field dose rate assessment.Therefore, it is necessary to sentence
Whether disconnected rdaiation response signal statistics value meets preset condition.When rdaiation response signal statistics value is unsatisfactory for preset condition, then
Illustrate that the value of rdaiation response signal statistics value is unreasonable, it at this time can be according to the value of rdaiation response signal statistics value and pre-
The adjustment rule first set, adjusts the value of the time of integration, and using the time of integration adjusted as the current integration time, and touch
Hair imaging sensor resurveys the video image of radiation field in the current integration time, in order to which processor recalculates radiation field
Rdaiation response signal statistics value.When rdaiation response signal statistics value meets preset condition, then illustrate that rdaiation response signal is united
The value of evaluation is in zone of reasonableness, at this time can be according to the time of integration, dosage rate and the rdaiation response signal pre-established
The corresponding relationship library of statistical value is determined and current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
Video image is acquired by the way that imaging sensor is arranged on dosage rate detector, can satisfy wide-range and height in the radiation field of position
The detection requirement of the upper limit.Since imaging sensor sample rate is high, data volume is big, and calculating speed is fast, and measurement result is stablized, by right
Imaging sensor video image progress data processing collected in radiation field, according to rdaiation response signal statistics value and radiation
The corresponding relationship of field emission level can fast and accurately estimate the radioactive level of radiation field.
Be provided for the embodiments of the invention above a kind of detection of wide-range high radiation field dosage rate method, apparatus and
Dosage rate detector is described in detail.Each embodiment is described in a progressive manner in specification, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts in each embodiment may refer to each other.It is right
For the device disclosed in embodiment, since it is corresponded to the methods disclosed in the examples, so be described relatively simple, it is related
Place is referring to method part illustration.It should be pointed out that for those skilled in the art, not departing from this
, can be with several improvements and modifications are made to the present invention under the premise of inventive principle, these improvement and modification also fall into the present invention
In scope of protection of the claims.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Claims (10)
1. a kind of method of wide-range high radiation field dosage rate detection characterized by comprising
Obtain the video image of the radiation field acquired within the current integration time；
According to the distribution of rdaiation response signal in the video image, the computation rule to match with the video image is searched,
And the rdaiation response signal statistics value of the radiation field is determined according to the computation rule；
Judge whether the rdaiation response signal statistics value meets preset condition；
If it is not, then according to the value of the rdaiation response signal statistics value and preset adjustment rule, when adjustment integrates
Between value, and using the time of integration adjusted as the current integration time；And the acquisition is returned within the current integration time
The step of video image of the radiation field of acquisition；
If so, the corresponding relationship library according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish, determines
Out with the current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
2. the method according to claim 1, wherein described according to rdaiation response signal in the video image
Distribution searches the computation rule to match with the video image, and determines the radiation field according to the computation rule
Rdaiation response signal statistics value includes:
Whether the every frame image for judging the video image includes rdaiation response signal；
If so, calculating the rdaiation response signal statistics value of the radiation field；
If it is not, then occurring the quantity of the frame image of rdaiation response signal in the statistical unit time, and using the quantity as radiation
Response signal statistical value.
3. according to the method described in claim 2, it is characterized in that, the rdaiation response signal statistics for calculating the radiation field
Value includes:
The background noise of every frame image of the video image is deducted, every frame image after statistics deduction background noise is each
The gray value of pixel；
According to the gray value of every each pixel of frame image, the average gray of the video image is calculated, and the gray scale is averaged
It is worth the rdaiation response signal statistics value as the radiation field.
4. the method according to claim 1, wherein the time of integration, dosage rate and rdaiation response signal system
The establishment process in the corresponding relationship library of evaluation includes:
Record the rdaiation response signal statistics value that simultaneously statistical picture sensor is corresponding in initial integration time；Wherein, initially
Described image sensor is placed in immediately ahead of scale radioactive source under state, and described image sensor is placed in its detection amount
The position that journey is minimized；
Gladient rule is adjusted according to the preset time, the value of initial integration time is adjusted, obtains the target time of integration；
Described image sensor rdaiation response signal statistics value corresponding within the target time of integration is recorded and counts, with
Obtain the corresponding relationship in same dose rate lower integral time and rdaiation response signal statistics value；
When changing the radiation dose rate of described image sensor, then returns to the record and statistical picture sensor exists
In initial integration time the step of corresponding rdaiation response signal statistics value, to obtain the time of integration-dosage rate-rdaiation response
The corresponding relationship of signal statistics value；Until the detection range of described image sensor is maximized, then end operation.
5. method according to any of claims 1-4, which is characterized in that in the integral that the foundation pre-establishes
Between, the corresponding relationship library of dosage rate and rdaiation response signal statistics value, determine and the current integration time, the radiation rung
After the matched target dose rate of induction signal statistical value institute further include:
Show the target dose rate.
6. method according to any of claims 1-4, which is characterized in that in the integral that the foundation pre-establishes
Between, the corresponding relationship library of dosage rate and rdaiation response signal statistics value, determine and the current integration time, the radiation rung
After the matched target dose rate of induction signal statistical value institute further include:
Store the radiation field video image and corresponding target dose rate.
7. a kind of device of wide-range high radiation field dosage rate detection, which is characterized in that including acquiring unit, determination unit, sentence
Disconnected unit, adjustment unit and matching unit；
The acquiring unit, for obtaining the video image of the radiation field acquired within the current integration time；
The determination unit is searched and the video image for the distribution according to rdaiation response signal in the video image
The computation rule to match, and determine according to the computation rule rdaiation response signal statistics value of the radiation field；
The judging unit, for judging whether the rdaiation response signal statistics value meets preset condition；If it is not, then triggering institute
State adjustment unit；If so, triggering the determination unit；
The adjustment unit, for regular according to the value of the rdaiation response signal statistics value and preset adjustment,
The value of the time of integration is adjusted, and using the time of integration adjusted as the current integration time；And the acquisition is returned current
The step of video image of the radiation field acquired in the time of integration；
The matching unit, for the correspondence according to the time of integration, dosage rate and rdaiation response signal statistics value that pre-establish
Relationship library is determined and the current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
8. a kind of dosage rate detector, which is characterized in that including imaging sensor and the place being connect with described image sensor
Manage device；
Described image sensor, for acquiring the video image of the radiation field within the current integration time；And by the video image
It is transmitted to the processor；
The processor, for receiving the video image of described image sensor transmission；It is rung according to being radiated in the video image
The computation rule to match with the video image is searched in the distribution of induction signal, and is determined according to the computation rule described
The rdaiation response signal statistics value of radiation field；
The processor is also used to judge whether the rdaiation response signal statistics value meets preset condition；If it is not, then according to institute
The value and preset adjustment rule for stating rdaiation response signal statistics value, adjust the value of the time of integration, and will adjustment
The time of integration afterwards is as the current integration time；And it triggers described image sensor and resurveys and radiated within the current integration time
The video image of field；If so, being closed according to the corresponding of the time of integration, dosage rate and the rdaiation response signal statistics value pre-established
It is library, determines and the current integration time, the matched target dose rate of rdaiation response signal statistics value institute.
9. dosage rate detector according to claim 8, which is characterized in that be provided with screening on the outside of described image sensor
Photosphere.
10. dosage rate detector according to claim 8, which is characterized in that utilize FPC winding displacement by described image sensor
Circuit board connect with the mainboard of the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568301.7A CN110161548A (en) | 2019-06-27 | 2019-06-27 | A kind of method, apparatus and dosage rate detector of dosage rate detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910568301.7A CN110161548A (en) | 2019-06-27 | 2019-06-27 | A kind of method, apparatus and dosage rate detector of dosage rate detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110161548A true CN110161548A (en) | 2019-08-23 |
Family
ID=67637064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910568301.7A Pending CN110161548A (en) | 2019-06-27 | 2019-06-27 | A kind of method, apparatus and dosage rate detector of dosage rate detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110161548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531401A (en) * | 2019-09-11 | 2019-12-03 | 南华大学 | Nuclear radiation detector and nuclear radiation detection method |
| CN115755217A (en) * | 2022-11-04 | 2023-03-07 | 成都善思微科技有限公司 | Method and system for monitoring irradiation-resistant service life of detector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833698A (en) * | 1986-02-24 | 1989-05-23 | Exxon Research And Engineering Company | Apparatus for three dimensional tomography utilizing an electro-optic x-ray detector |
| JP2002357692A (en) * | 2001-03-28 | 2002-12-13 | Toshiba Corp | Radiation measuring device |
| CN105629284A (en) * | 2015-12-28 | 2016-06-01 | 广州兰泰胜辐射防护科技有限公司 | Ionizing radiation dose acquisition method and device |
| CN108089219A (en) * | 2017-11-08 | 2018-05-29 | 西北核技术研究所 | Ray radiation field dose rate measuring device and measuring method |
| CN108957514A (en) * | 2018-05-21 | 2018-12-07 | 北京科技大学 | A kind of nuclear radiation detection method |
| CN109799526A (en) * | 2019-03-15 | 2019-05-24 | 北京科技大学 | A kind of nuclear radiation detection method and detection system |
| CN109793509A (en) * | 2019-03-15 | 2019-05-24 | 北京科技大学 | A kind of nuclear radiation detection and method for measuring heart rate and device |
-
2019
- 2019-06-27 CN CN201910568301.7A patent/CN110161548A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833698A (en) * | 1986-02-24 | 1989-05-23 | Exxon Research And Engineering Company | Apparatus for three dimensional tomography utilizing an electro-optic x-ray detector |
| JP2002357692A (en) * | 2001-03-28 | 2002-12-13 | Toshiba Corp | Radiation measuring device |
| CN105629284A (en) * | 2015-12-28 | 2016-06-01 | 广州兰泰胜辐射防护科技有限公司 | Ionizing radiation dose acquisition method and device |
| CN108089219A (en) * | 2017-11-08 | 2018-05-29 | 西北核技术研究所 | Ray radiation field dose rate measuring device and measuring method |
| CN108957514A (en) * | 2018-05-21 | 2018-12-07 | 北京科技大学 | A kind of nuclear radiation detection method |
| CN109799526A (en) * | 2019-03-15 | 2019-05-24 | 北京科技大学 | A kind of nuclear radiation detection method and detection system |
| CN109793509A (en) * | 2019-03-15 | 2019-05-24 | 北京科技大学 | A kind of nuclear radiation detection and method for measuring heart rate and device |
Non-Patent Citations (3)
| Title |
|---|
| 徐守龙等: "《CIS数字模组作为核辐射环境监控及报警设备的可用性研究》", 《核动力工程》 * |
| 徐守龙等: "CCD与CMOS像素传感器γ射线电离辐射响应特性对比研究", 《发光学报》 * |
| 黄茜等: "多功能宽量程辐射探测系统研制", 《核电子学与探测技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531401A (en) * | 2019-09-11 | 2019-12-03 | 南华大学 | Nuclear radiation detector and nuclear radiation detection method |
| CN110531401B (en) * | 2019-09-11 | 2021-04-09 | 南华大学 | Nuclear radiation detector and nuclear radiation detection method |
| CN115755217A (en) * | 2022-11-04 | 2023-03-07 | 成都善思微科技有限公司 | Method and system for monitoring irradiation-resistant service life of detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104412127B (en) | Digital positron emission tomography（DPET）Energy calibration system and method | |
| CN106574978B (en) | X-ray filming apparatus | |
| CN103777226B (en) | Optical sensor gain detection means and optical sensor gain detection method | |
| US9332952B2 (en) | Data-driven optimization of event acceptance/rejection logic | |
| CN104471441B (en) | Spectral photon counting detector | |
| JP4160275B2 (en) | Energy measuring method and measuring device | |
| CN107798685B (en) | Pedestrian's height determines method, apparatus and system | |
| CN103871046B (en) | Setting apparatus, control method thereof, image processing apparatus, and control method thereof | |
| CA1138131A (en) | Scintillation camera uniformity correction | |
| CN110161548A (en) | A kind of method, apparatus and dosage rate detector of dosage rate detection | |
| CN104220900B (en) | High flux photon counting detector electronics | |
| CN110231642B (en) | Method and device for constructing radiation field map and robot | |
| CN110874583A (en) | Passenger flow statistics method and device, storage medium and electronic equipment | |
| RU2593783C2 (en) | Radiographic apparatus for detecting photons with correction of shift | |
| CN110245579A (en) | Density of stream of people prediction technique and device, computer equipment and readable medium | |
| CN111788499B (en) | Dead time correction method in quantitative Positron Emission Tomography (PET) reconstruction of various objects and radioactivity distributions | |
| JPH04274791A (en) | Detecting method and apparatus wherein base potential is corrected | |
| CN106842277A (en) | A kind of pile-up events processing method and processing device | |
| CN106204549A (en) | A kind of billboard monitoring method based on video analysis, device and electronic equipment | |
| TW200821616A (en) | Portable radiation detection apparatus and spectrometry analyzing method | |
| CN107862747B (en) | Gamma radioactive source augmented reality method and system | |
| CN104116505B (en) | Pulse estimation unit | |
| CN105705966B (en) | Contour images generating means and nuclear medicine diagnostic apparatus | |
| US8185330B2 (en) | Automatic placement of measurement gates | |
| CN106597375A (en) | Method and apparatus to calculate target position using imaging spectrometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |