Radiation intensity detection system and radiation intensity detection method

Abstract

The embodiment of the invention provides a radiation intensity detection system and a radiation intensity detection method, and relates to the technical field of nuclear radiation monitoring. The system comprises a radiation measuring instrument and a first upper computer. The radiation measuring instrument comprises a Geiger counter, an electronic switch, a timer and a controller. The Geiger counter performs radiation ray detection on the scene to be detected to obtain a pulse signal; the timer determines the to-be-used duration between the receiving starting moment of each pulse signal and the moment when the pulse signal has a rising edge, and sends a timing ending signal to the electronic switch when each pulse signal has the rising edge; the electronic switch controls the Geiger counter to stop working when receiving the timing ending signal every time, and controls the Geiger counter to start working when a preset duration is reached; the controller calculates the to-be-utilized radiation intensity based on the to-be-utilized duration; and the first upper computer predicts the radiation intensity according to the to-be-utilized radiation intensity by using the prediction model, so that the radiation intensity can be accurately predicted.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear radiation monitoring, and particularly to a radiation intensity detection system and a radiation intensity detection method. Background Art

[0002] Nuclear radiation has great harm to the environment and the human body. Therefore, it is often necessary to predict the radiation intensity of nuclear facilities or irradiated objects and their surrounding environments in order to timely evaluate the radiation risk, remind staff to take corresponding protective measures, avoid the influence of nuclear radiation, and ensure the safety of staff and the environment. It can be seen that how to accurately predict the radiation intensity has become an urgent problem to be solved. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a radiation intensity detection system and a radiation intensity detection method to accurately predict the radiation intensity of a scene to be detected. The specific technical solutions are as follows:

[0004] In the first aspect of the implementation of the present application, a radiation intensity detection system is provided. The system includes: a radiation measuring instrument and a first upper computer; the radiation measuring instrument includes: a Geiger counter, an electronic switch, a timer, and a controller; the electronic switch is used to control the Geiger counter to switch the working state; the first upper computer is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample time and the sample radiation intensity at the second sample time after the first sample time.

[0005] The Geiger counter is used to detect radiation rays in the scene to be detected when in the working state, obtain a pulse signal, and send the detected pulse signal to the timer.

[0006] The timer is used to receive the pulse signal sent by the Geiger counter, determine the duration between the start receiving time of each received pulse signal and the time when the pulse signal appears at the rising edge, obtain the duration to be utilized, and send the obtained duration to be utilized to the controller, and send a timing end signal to the electronic switch when each pulse signal appears at the rising edge.

[0007] The electronic switch is used to control the Geiger counter to end the work each time a timing end signal is received, and control the Geiger counter to start working when a preset duration is reached after each time a timing end signal is received.

[0008] The controller is configured to, when receiving each duration to be utilized, calculate the average level of the first number of durations to be utilized received most recently, calculate the ratio of a preset constant to the obtained average level, obtain the radiation intensity at the reception moment of the earliest received duration to be utilized among the first number of durations to be utilized as the radiation intensity to be utilized, and send the obtained radiation intensity to be utilized to the first upper computer.

[0009] The first upper computer is configured to, when a preset prediction period is reached, process the second number of radiation intensities to be utilized received most recently by using the prediction model to obtain predicted radiation intensities at multiple future moments.

[0010] Optionally, the radiation measuring instrument further includes: a network card; the network card is connected to the controller; the controller and the first upper computer perform data interaction through the network card.

[0011] Optionally, the system further includes: a second upper computer, a router, and a server; the network card is communicatively connected to the router; the router is communicatively connected to the server;

[0012] The first upper computer is further configured to send the obtained predicted radiation intensity to the router through the network card.

[0013] The router is configured to send the received predicted radiation intensity to the controller.

[0014] The controller is further configured to send the obtained radiation intensity to be utilized and the received predicted radiation intensity to the router through the network card respectively.

[0015] The router is further configured to send the received radiation intensity to be utilized to the server and the first upper computer respectively, and send the received predicted radiation intensity to the server.

[0016] The server is configured to send the received radiation intensity to be utilized and the predicted radiation intensity to the second upper computer.

[0017] The second upper computer is configured to display the received radiation intensity to be utilized and the predicted radiation intensity.

[0018] Optionally, the second upper computer is further configured to, in response to a control operation on the radiation measuring instrument, send a control instruction representing the control operation to the server.

[0019] The server is further configured to send the received control instruction to the network card through the router.

[0020] The network card is further configured to send the received control instruction to the controller.

[0021] The controller is further configured to perform the control operation indicated by the control instruction when the control instruction is received.

[0022] Optionally, the first host computer is further configured to send the obtained predicted radiation intensity to the controller;

[0023] The controller is further configured to trigger an alarm when it is determined that an alarm condition is satisfied; wherein, the alarm condition includes at least one of the following: the obtained radiation intensity to be utilized is greater than a preset threshold; the received predicted radiation intensity is greater than the preset threshold; the difference between the obtained radiation intensity to be utilized at a certain moment and the predicted radiation intensity at that moment is greater than a preset difference.

[0024] Optionally, the radiation measuring instrument further includes: an alarm;

[0025] The controller is specifically configured to send a trigger signal to the alarm;

[0026] The alarm is configured to give an alarm when the trigger signal is received.

[0027] Optionally, the radiation measuring instrument further includes: a display;

[0028] The first host computer is further configured to send the obtained predicted radiation intensity to the controller;

[0029] The controller is further configured to send the obtained radiation intensity to be utilized and the received predicted radiation intensity to the display;

[0030] The display is configured to display the received radiation intensity.

[0031] Optionally, the controller includes: a field programmable gate array and a single-chip microcomputer;

[0032] The timer is specifically configured to send the obtained utilization duration to the field programmable gate array;

[0033] The field programmable gate array is configured to calculate the average level of the first number of received utilization durations when each utilization duration is received, calculate the ratio of a preset constant to the obtained average level, obtain the radiation intensity at the reception moment of the earliest received utilization duration among the first number of utilization durations as the radiation intensity to be utilized, and send the obtained radiation intensity to be utilized to the single-chip microcomputer;

[0034] The single-chip microcomputer is configured to send the received radiation intensity to be utilized to the first host computer; and determine whether the alarm condition is satisfied;

[0035] The first host computer is configured to send the obtained predicted radiation intensity to the single-chip microcomputer.

[0036] In a second aspect of the implementation of this application, a radiation intensity detection method is further provided, which is applied to a radiation intensity detection system. The system includes: a radiation measuring instrument and a first host computer; the radiation measuring instrument includes: a Geiger counter, an electronic switch, a timer, and a controller; the electronic switch is used to control the Geiger counter to switch the working state; the first host computer is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample time and the sample radiation intensity at the second sample time after the first sample time; the method includes:

[0037] In the case of being in the working state, the Geiger counter performs radiation ray detection on the scene to be detected, obtains a pulse signal, and sends the detected pulse signal to the timer;

[0038] The timer receives the pulse signal sent by the Geiger counter, determines the duration between the start reception time of each received pulse signal and the time when the rising edge of the pulse signal appears, obtains the duration to be utilized, and sends the obtained duration to be utilized to the controller, and sends a timing end signal to the electronic switch when the rising edge of each pulse signal appears;

[0039] Each time the timing end signal is received, the electronic switch controls the Geiger counter to end the work, and controls the Geiger counter to start working when a preset duration is reached after each time the timing end signal is received;

[0040] When each duration to be utilized is received, the controller calculates the average level of the first number of durations to be utilized received most recently, and calculates the ratio of a preset constant to the obtained average level, obtains the radiation intensity at the reception time of the earliest received duration to be utilized among the first number of durations to be utilized as the duration to be utilized radiation intensity, and sends the obtained duration to be utilized radiation intensity to the first host computer;

[0041] When a preset prediction period is reached, the first host computer uses the prediction model to process the second number of durations to be utilized radiation intensity received most recently, and obtains the predicted radiation intensity at multiple future times.

[0042] Optionally, the radiation measuring instrument further includes: a network card; the network card is connected to the controller; the controller and the first host computer perform data interaction through the network card.

[0043] Optionally, the system further includes: a second host computer, a router, and a server; the network card is communicatively connected to the router; the router is communicatively connected to the server; the method further includes:

[0044] The first host computer sends the obtained predicted radiation intensity to the router through the network card;

[0045] The router sends the received predicted radiation intensity to the controller;

[0046] The controller sends the to-be-utilized radiation intensity obtained and the received predicted radiation intensity to the router respectively through the network card;

[0047] The router sends the received to-be-utilized radiation intensity to the server and the first host computer respectively, and sends the received predicted radiation intensity to the server;

[0048] The server sends the received to-be-utilized radiation intensity and predicted radiation intensity to the second host computer;

[0049] The second host computer displays the received to-be-utilized radiation intensity and predicted radiation intensity.

[0050] Optionally, the method further includes:

[0051] In response to a control operation on the radiation measuring instrument, the second host computer sends a control instruction representing the control operation to the server;

[0052] The server sends the received control instruction to the network card through the router;

[0053] The network card sends the received control instruction to the controller;

[0054] When receiving the control instruction, the controller executes the control operation indicated by the control instruction.

[0055] Optionally, the method further includes:

[0056] The first host computer sends the obtained predicted radiation intensity to the controller;

[0057] When it is determined that an alarm condition is satisfied, the controller triggers an alarm; wherein, the alarm condition includes at least one of the following: the to-be-utilized radiation intensity obtained is greater than a preset threshold; the received predicted radiation intensity is greater than the preset threshold; the difference between the to-be-utilized radiation intensity at a certain moment obtained and the predicted radiation intensity at that moment is greater than a preset difference.

[0058] Optionally, the radiation measuring instrument further includes: an alarm;

[0059] The controller triggering the alarm includes:

[0060] The controller sends a trigger signal to the alarm;

[0061] The method further includes:

[0062] When the trigger signal is received, the alarm gives an alarm.

[0063] Optionally, the radiation measuring instrument further includes: a display;

[0064] The method further includes:

[0065] The first host computer sends the obtained predicted radiation intensity to the controller;

[0066] The controller sends the radiation intensity to be utilized and the received predicted radiation intensity to the display;

[0067] The display displays the received radiation intensity.

[0068] Optionally, the controller includes: a field programmable gate array and a single-chip microcomputer;

[0069] The timer sends the duration to be utilized obtained to the controller, including:

[0070] The timer sends the duration to be utilized obtained to the field programmable gate array;

[0071] The method further includes:

[0072] When each duration to be utilized is received, the field programmable gate array calculates the average level of the first number of durations to be utilized received most recently, and calculates the ratio of a preset constant to the obtained average level, to obtain the radiation intensity at the reception moment of the earliest received duration to be utilized among the first number of durations to be utilized, as the radiation intensity to be utilized, and sends the obtained radiation intensity to be utilized to the single-chip microcomputer;

[0073] The single-chip microcomputer sends the received radiation intensity to be utilized to the first host computer; and determines whether the alarm condition is satisfied;

[0074] The first host computer sends the obtained predicted radiation intensity to the single-chip microcomputer.

[0075] Advantageous effects of embodiments of the present invention:

[0076] A radiation intensity detection system provided by an embodiment of the present invention, the system includes: a radiation measuring instrument and a first host computer; the radiation measuring instrument includes: a Geiger counter, an electronic switch, a timer and a controller; the electronic switch is used to control the Geiger counter to switch the working state; the first host computer is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment; the Geiger counter is used to detect radiation rays in the to-be-detected scene when in the working state, obtain a pulse signal, and send the detected pulse signal to the timer; the timer is used to receive the pulse signal sent by the Geiger counter, determine the duration between the start reception moment of each received pulse signal and the moment when the pulse signal appears at the rising edge, obtain the to-be-utilized duration, and send the obtained to-be-utilized duration to the controller, and send a timing end signal to the electronic switch when each pulse signal appears at the rising edge; the electronic switch is used to control the Geiger counter to end the working state each time it receives the timing end signal, and control the Geiger counter to start working when a preset duration is reached after each time it receives the timing end signal; the controller is used to calculate the average level of the first number of to-be-utilized durations received most recently when receiving each to-be-utilized duration, and calculate the ratio of a preset constant to the obtained average level, obtain the radiation intensity at the reception moment of the earliest received to-be-utilized duration among the first number of to-be-utilized durations, as the to-be-utilized radiation intensity, and send the obtained to-be-utilized radiation intensity to the first host computer; the first host computer is used to, when a preset prediction period is reached, use the prediction model to process the second number of to-be-utilized radiation intensities received most recently, and obtain the predicted radiation intensities at multiple future moments.

[0077] Based on the above processing, the scene that currently needs to be detected for radiation intensity can be called the to-be-detected scene. The prediction model can be pre-trained using the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment, so that the prediction model learns the ability to predict the radiation intensity at future moments based on the radiation intensity at historical moments. And a radiation measuring instrument including a Geiger counter, an electronic switch, a timer and a controller can be used to detect radiation rays in the to-be-detected scene to measure the radiation intensity (i.e., the to-be-utilized radiation intensity). And the controller can communicate with the host computer (i.e., the first host computer) and send the obtained to-be-utilized radiation intensity to the first host computer. Furthermore, the first host computer can use the prediction model, combined with the received to-be-utilized radiation intensity, to predict the radiation intensity at future moments (i.e., the predicted radiation intensity). And the prediction model is trained based on the real radiation intensity at historical moments, so it can accurately predict the radiation intensity at future moments according to the received to-be-utilized radiation intensity. In this way, it is possible to accurately predict the radiation intensity of the to-be-detected scene.

[0078] Of course, it is not necessary for any product or method implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other embodiments based on these drawings.

[0080] Figure 1 The first structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application;

[0081] Figure 2 The flowchart of a method for obtaining the predicted radiation intensity provided by the embodiment of the present application;

[0082] Figure 3 The flowchart of a method for obtaining the prediction model provided by the embodiment of the present application;

[0083] Figure 4 The second structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application;

[0084] Figure 5 The structural schematic diagram of a radiation measuring instrument 10 provided by the embodiment of the present application;

[0085] Figure 6 Another structural schematic diagram of a radiation measuring instrument 10 provided by the embodiment of the present application;

[0086] Figure 7 Another structural schematic diagram of a radiation measuring instrument 10 provided by the embodiment of the present application;

[0087] Figure 8 The third structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application;

[0088] Figure 9 The fourth structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application

[0089] Figure 10 The fifth structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application

[0090] Figure 11 The flowchart of a radiation intensity detection method provided by the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0091] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art based on this application belong to the protection scope of the present invention.

[0092] Nuclear radiation causes great harm to the environment and the human body. Therefore, it is often necessary to predict the radiation intensity of nuclear facilities or irradiated objects and their surrounding environments in order to timely evaluate the radiation risk, remind the staff to take corresponding protective measures, avoid the impact of nuclear radiation, and ensure the safety of the staff and the environment.

[0093] In order to accurately predict the radiation intensity, an embodiment of the present application provides a radiation intensity detection system. Refer to Figure 1 , Figure 1 which is the first structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application. The radiation intensity detection system includes: a radiation measuring instrument 10 and a first host computer 20; the radiation measuring instrument 10 includes: a Geiger counter 101, an electronic switch 102, a timer 103, and a controller 104. The electronic switch 102 is used to control the Geiger counter 101 to switch the working state; the first host computer 20 is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample time and the sample radiation intensity at the second sample time after the first sample time.

[0094] The Geiger counter 101 is used to detect radiation rays in the scene to be detected when in the working state, obtain a pulse signal, and send the detected pulse signal to the timer 103;

[0095] The timer 103 is used to receive the pulse signal sent by the Geiger counter 101, determine the duration between the start reception time of each received pulse signal and the time when the pulse signal appears at the rising edge, obtain the duration to be utilized, and send the obtained duration to be utilized to the controller 104, and send a timing end signal to the electronic switch 102 when the rising edge of each pulse signal appears;

[0096] The electronic switch 102 is used to control the Geiger counter 101 to end the work each time it receives the timing end signal, and control the Geiger counter 101 to start working when the preset duration is reached after each time it receives the timing end signal;

[0097] A controller 104, configured to calculate an average level of the first number of to-be-utilized time durations received most recently when receiving each to-be-utilized time duration, calculate a ratio of a preset constant to the obtained average level, obtain a radiation intensity at a reception moment of the earliest received to-be-utilized time duration among the first number of to-be-utilized time durations as a to-be-utilized radiation intensity, and send the obtained to-be-utilized radiation intensity to a first host computer 20;

[0098] The first host computer 20 is configured to, when a preset prediction period is reached, process the second number of to-be-utilized radiation intensities received most recently by using a prediction model to obtain predicted radiation intensities at a plurality of future moments.

[0099] Based on the above processing, a scene where radiation intensity detection needs to be performed currently can be referred to as a to-be-detected scene. The prediction model can be trained in advance by using a sample radiation intensity at a first sample moment and a sample radiation intensity at a second sample moment after the first sample moment, so that the prediction model learns the ability to predict the radiation intensity at a future moment based on the radiation intensity at a historical moment. And a radiation measuring instrument 10 including a Geiger counter 101, an electronic switch 102, a timer 103, and a controller 104 can be used to detect radiation rays in the to-be-detected scene to measure the radiation intensity (i.e., the to-be-utilized radiation intensity). And the controller 104 can communicate with a host computer (i.e., the first host computer 20) to send the obtained to-be-utilized radiation intensity to the first host computer 20. Furthermore, the first host computer 20 can use the prediction model to combine the received to-be-utilized radiation intensity to predict the radiation intensity at a future moment (i.e., the predicted radiation intensity). And the prediction model is trained based on the real radiation intensity at a historical moment, so it can accurately predict the radiation intensity at a future moment according to the received to-be-utilized radiation intensity. In this way, accurate prediction of the radiation intensity of the to-be-detected scene can be realized. It is ensured that the staff can prevent nuclear contamination in time, process it in time, and reduce the risk of performing relatively dangerous industrial activities.

[0100] In an embodiment of the present application, a scene where radiation intensity detection needs to be performed currently can be referred to as a to-be-detected scene. The radiation intensity detection system can include a radiation measuring instrument 10 and a first host computer 20. The radiation intensity of the to-be-detected scene can be detected by the radiation measuring instrument 10 to measure the radiation intensity of the to-be-detected scene in real time (i.e., the to-be-utilized radiation intensity). The first host computer 20 can be deployed with a pre-trained prediction model. The prediction model can be selected according to needs and is not specifically limited as long as it can implement time series prediction. For example, the prediction model can be an LSTM (Long Short-Term Memory) model, or an ARMA (Auto-Regressive Moving Average) model.

[0101] The sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment can be obtained in advance. The first sample moment and the second sample moment can be multiple historical moments selected in advance, and the number of the first sample moment and the second sample moment can be set as needed without specific limitation. For example, starting from 10:00 am three days ago, one moment can be selected every 5 minutes until 8 moments are selected as the first sample moment, and then starting from 10:40, one moment can be selected every 5 minutes until 6 moments are selected as the second sample moment. Or, starting from 2:00 pm two days ago, one moment can be selected every 6 minutes until 10 moments are selected as the first sample moment, and then starting from 2:54, one moment can be selected every 8 minutes until 8 moments are selected as the second sample moment.

[0102] The radiation intensity of the scene to be detected can be measured at the first sample moment and the second sample moment in advance by using a radiation intensity measurement tool, so as to obtain the sample radiation intensity at the first sample moment and the second sample moment. For example, the radiation intensity measurement tool can be a radiation meter 10, or it can also be other instruments capable of realizing radiation intensity measurement without specific limitation. Furthermore, the sample radiation intensity at the first sample moment can be input into the prediction model with an initial structure to obtain the predicted radiation intensity at the second sample moment. According to the difference between the predicted radiation intensity at the second sample moment and the sample radiation intensity obtained, the model parameters of the prediction model with the initial structure are adjusted until the preset convergence condition is reached, and the trained prediction model is obtained. For example, the preset convergence condition can be that the number of times of adjusting the model parameters of the prediction model reaches a preset number of times, or the difference between the predicted radiation intensity at the second sample moment and the sample radiation intensity obtained is less than a specified difference. Correspondingly, during the training process, the prediction model can learn the ability to predict the radiation intensity at a future moment based on the radiation intensity at historical moments. Subsequently, the first host computer 20 can predict the radiation intensity at a future moment according to the radiation intensity currently measured by the radiation meter 10.

[0103] The sample radiation intensity can be obtained by measuring the radiation intensity of the scene to be detected in advance. In this way, for different scenes to be detected, different prediction models can be trained to ensure that each prediction model for the scene to be detected can learn something specific and can also make accurate predictions. For different application scenarios and data characteristics, we indeed need to train and obtain

[0104] The radiation measuring instrument 10 may include: a Geiger counter 101, an electronic switch 102, a timer 103, and a controller 104. The Geiger counter 101 may also be referred to as a GM (Geiger-Müller) counter and can be simply called a GM tube. The Geiger counter 101 can be used to detect radiation rays in the scene to be detected. When in the working state, when there are radiation rays in the scene to be detected, every time a pair of ions is ionized in the Geiger counter 101, an electric pulse of the same size can be amplified and generated. After the Geiger counter 101 generates an electric pulse, it takes a period of time to restore the ability to detect radiation rays. The electronic switch 102 can be used to control the Geiger counter 101 to switch the working state, so that the Geiger counter 101 can end the work after generating an electric pulse and can start working when the preset duration is reached after the end of the work, so that the Geiger counter 101 can have enough time to restore the detection ability to accurately detect radiation rays. For example, the electronic switch 102 can be a MOS (Metal-Oxide-Semiconductor) tube. The specific method for the electronic switch 102 to control the Geiger counter 101 to switch the working state can be referred to the subsequent description. Each time the Geiger counter 101 starts working until it generates an electric pulse, a pulse signal can be obtained. This pulse signal can be called the pulse signal corresponding to the start of this work.

[0105] The Geiger counter 101 can send each obtained pulse signal to the timer 103. The pulse signal output by the Geiger counter 101 is an analog signal and can pass through a signal conditioning circuit to convert the analog signal into a TTL (Transistor-Transistor logic) level (i.e., a digital signal) through the signal conditioning circuit. For example, the signal conditioning circuit can include two inverters. After passing through the signal conditioning circuit, the conditioned pulse signal can also be shaped. For example, the conditioned pulse signal can be pulse-shaped by a monostable flip-flop to reduce the influence of interference signals. Subsequently, the timer 103 can also perform timing according to the pulse signal that has been signal-conditioned and pulse-shaped.

[0106] For each pulse signal, the timer 103 can obtain the duration to be utilized based on the duration between the start reception time of receiving the pulse signal and the time when the rising edge of the pulse signal appears. The start reception time of a pulse signal can represent the time when the corresponding start of work occurs for the pulse signal. That is, the duration to be utilized can represent the interval duration between the time when the Geiger counter 101 starts to work this time and the time when an electrical pulse is generated when it is in the working state after starting to work this time. And the timer 103 can send a timing end signal to the electronic switch 102 when the rising edge of each pulse signal appears. For example, the timing end signal can be a high level. When receiving the timing end signal, the electronic switch 102 can control the Geiger counter 101 to end its work, and the electronic switch 102 can control the Geiger counter 101 to start working when a preset duration is reached after each reception of the timing end signal. For example, the preset duration can be 2 ms (milliseconds) or 2.5 ms. The Geiger counter 101 generates a pulse signal during the time when it is in the working state after each start of work. When the Geiger counter 101 ends its work, no pulse signal will be generated.

[0107] In one implementation, the radiation measuring instrument 10 may further include a high-voltage power supply. The high-voltage power supply can provide the voltage required for the normal operation of the Geiger counter 101 (which can be referred to as the first voltage) and the voltage during the pause of work (which can be referred to as the second voltage). The first voltage is greater than the second voltage. For example, the first voltage can be 380 V (volts), and the second voltage can be 250 V. The electronic switch 102 can control the Geiger counter 101 to switch its working state by controlling the voltage switching of the high-voltage power supply. For example, the electronic switch 102 can close each time it receives the timing end signal to control the high-voltage power supply to provide the second voltage to the Geiger counter 101, so that the Geiger counter 101 ends its work. And the electronic switch 102 can open when a preset duration is reached after each reception of the timing end signal to control the high-voltage power supply to provide the first voltage to the Geiger counter 101, so that the Geiger counter 101 starts working.

[0108] After calculating the available duration to be utilized, the timer 103 can also send the obtained available duration to the controller 104. Correspondingly, upon receiving each available duration, the controller 104 can calculate the average level of the first number of recently received available durations, and calculate the ratio of a preset constant to the obtained average level to obtain the radiation intensity at the reception moment of the earliest received available duration among the first number of available durations, which is used as the available radiation intensity. The first number can be set as needed and is not specifically limited. For example, the first number can be 10 or 15. The preset constant is an empirically set value in advance. For example, the preset constant can be any value within the range of 25 to 50. Taking the currently received available duration as t10 and the first number as 10 as an example, the 10 recently received available durations can be expressed as t1, t2, ……, t10. Subsequently, when t11 is received, the 10 recently received available durations can be t2, t3, ……, t11, and so on. This method of calculating radiation intensity can be called the Time-To-Count method, which can effectively overcome the problems of the long dead time of the Geiger counter 101 and the easy saturation of counting without having to count the generated pulses to calculate the radiation intensity.

[0109] For example, the available radiation intensity can be calculated according to the following formula:

[0110]

[0111] where R represents the available radiation intensity, K represents the preset constant, represents the average level of the first number of recently received available durations. The reciprocal of can also be expressed as σ. Correspondingly, the above formula can also be expressed as R = Kσ.

[0112] For example, the weighted sum of the first number of recently received available durations can be calculated according to a preset weight to obtain the average level. The earlier the reception time of an available duration, the greater the preset weight of this available duration. Alternatively, the average value of the first number of recently received available durations can also be calculated to obtain the average level. That is, the average level can be calculated according to the following formula:

[0113]

[0114] where represents the average level of the first number of recently received available durations, n represents the first number, and a i represents the i-th available duration.

[0115] After obtaining the radiation intensity to be utilized, the controller 104 may send the obtained radiation intensity to be utilized to the first upper computer 20. Correspondingly, the first upper computer 20 may predict the radiation intensity at future moments of the scene to be detected according to the received radiation intensity to be utilized. The operating system of the first upper computer 20 may be set as needed. For example, the operating system of the first upper computer 20 may be the Ubuntu (an operating system) system. When the preset prediction period is reached, the first upper computer 20 may use the prediction model to process the second number of received radiation intensities to be utilized, and obtain multiple predicted radiation intensities at future moments. The future moments may be set as needed and are not specifically limited. For example, multiple future moments may be selected at preset intervals after the current moment. The number of future moments may also be set as needed. For example, it may be 6 or 8. The second number may be 9 or 10.

[0116] The cycle duration of the preset prediction period may be determined according to the interval duration (which may be referred to as the first interval duration) between the earliest moment and the latest moment among multiple future moments. The cycle duration of the preset prediction period is not greater than the first interval duration. For example, if the first interval duration is 40 minutes, the cycle duration of the preset prediction period may be 20 minutes or 30 minutes. The interval duration between the moment when each preset prediction period is reached and the earliest moment among the multiple future moments predicted by this preset prediction period may be referred to as the second interval duration. The second interval duration is the duration of the above-mentioned preset interval and is a preset fixed value. When a preset prediction period is reached, the latest moment among the multiple future moments predicted is: the sum of the moment when this preset prediction period is reached, the second interval duration, and the first interval duration. When the next preset prediction period after this preset prediction period is reached, the earliest moment among the multiple future moments predicted is: the sum of the moment when this preset prediction period is reached, the second interval duration, and the cycle duration of the preset prediction period. Since the cycle duration of the preset prediction period is not greater than the first interval duration, the latest moment among the multiple future moments predicted by this preset prediction period is not earlier than the earliest moment among the multiple future moments predicted by the next preset prediction period. That is, there is an intersection among the multiple future moments predicted by adjacent preset prediction periods.

[0117] And the time to reach the next preset prediction period is: the sum of the time to reach this preset prediction period and the period duration of the preset prediction period, which is not later than the latest time among the multiple future times predicted by this preset prediction period. In this way, it can be ensured that before reaching a future time, the predicted radiation intensity at this future time can be obtained. That is, it can be ensured that the predicted radiation intensity at future times can be predicted in a timely manner, ensuring the continuity of prediction, and avoiding the situation that due to the period duration of the preset detection period being greater than the interval duration, the predicted radiation intensity at a certain moment cannot be predicted in a timely manner, and the predicted radiation intensity at a certain moment is not obtained before reaching that moment. It can further ensure that the radiation risk of the scene to be detected can be evaluated in a timely manner, enabling the staff to take corresponding protective measures in a timely manner, avoiding the impact of nuclear radiation, and ensuring the safety of the staff and the environment.

[0118] Since noise signals may interfere when the controller 104 sends data to the first host computer 20, in order to further improve the accuracy of obtaining the predicted radiation intensity, the first host computer 20 can perform smoothing filtering on the received radiation intensity to be utilized, so as to perform smoothing processing on the received radiation intensity to be utilized and reduce the influence of noise data. For example, the first host computer 20 can use vofa+ (a software that supports filtering) to filter the received radiation intensity to be utilized. Correspondingly, the data obtained through the filtering process can be input into the prediction model to obtain the predicted radiation intensities at multiple future times output by the prediction model.

[0119] The first host computer 20 can also display the received radiation intensity to be utilized and the predicted radiation intensity obtained by prediction. For example, the received radiation intensity and the predicted radiation intensity can be displayed in the form of a waveform diagram, or, alternatively, the values of the received radiation intensity and the predicted radiation intensity can be displayed in sequence according to the time order.

[0120] In one embodiment, refer to Figure 2 , Figure 2 which is a schematic flowchart of a process for obtaining the predicted radiation intensity provided by an embodiment of the present application. It includes the following steps:

[0121] Step S201: Obtain nuclear radiation intensity data. That is, the radiation intensity to be utilized calculated in the above embodiment.

[0122] Step S202: Perform nonlinear correction on the data. That is, use a preset nonlinear correction algorithm to correct the calculated radiation intensity to be utilized.

[0123] Step S203: Software filtering. That is, use vofa+ to filter the received radiation intensity to be utilized in the above embodiment.

[0124] Step S204: Model processing. That is, use the prediction model to process the data after filtering to obtain the predicted radiation intensities at multiple future moments output by the prediction model.

[0125] Step S205: Summarize data points and display on the screen. That is, the first host computer 20 can also display the received radiation intensity to be utilized and the predicted radiation intensity obtained by prediction, and as described in the subsequent embodiments, the received radiation intensity can be displayed on the display.

[0126] In one embodiment, refer to Figure 3 , Figure 3 which is a schematic flowchart of a process for obtaining a prediction model provided by an embodiment of the present application. It includes the following steps:

[0127] Step S301: Start.

[0128] Step S302: Non-linear data input. That is, obtain the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment.

[0129] Step S303: Data preprocessing. That is, perform data cleaning on the obtained sample radiation intensities to remove duplicate or incorrect sample radiation intensities to improve the quality of training data.

[0130] Step S304: Model construction. That is, construct a prediction model.

[0131] Step S305: Model compilation. That is, compile the prediction model.

[0132] Step S306: Model training. That is, use the sample radiation intensities to train the prediction model.

[0133] Step S307: Model evaluation and application. That is, verify the accuracy of the radiation intensity predicted by the trained prediction model. After passing the verification, the trained prediction model can be started to be used for prediction.

[0134] Step S308: End.

[0135] In one embodiment, the first host computer 20 is further configured to send the obtained predicted radiation intensity to the controller 104;

[0136] The controller 104 is further configured to trigger an alarm when it determines that the alarm condition is satisfied.

[0137] Wherein, the alarm condition includes at least one of the following: the received radiation intensity to be utilized is greater than a preset threshold; the received predicted radiation intensity is greater than a preset threshold; the difference between the received radiation intensity to be utilized at a certain moment and the predicted radiation intensity at that moment is greater than a preset difference.

[0138] In an embodiment of the present application, the first host computer 20 may send the obtained predicted radiation intensity to the controller 104. The controller 104 may determine whether the alarm condition is satisfied according to the obtained radiation intensity to be utilized and / or the predicted radiation intensity. When each radiation intensity to be utilized is obtained, the controller 104 may determine whether the radiation intensity to be utilized is greater than a preset threshold. If the radiation intensity to be utilized is greater than the preset threshold, the alarm condition is satisfied. When the predicted radiation intensity is received, the controller 104 may determine whether there is a predicted radiation intensity greater than the preset threshold in the received predicted radiation intensities. If there is a predicted radiation intensity greater than the preset threshold in the received predicted radiation intensities, that is, the received predicted radiation intensity is greater than the preset threshold, the alarm condition is satisfied.

[0139] Moreover, the radiation intensity detection system provided by the embodiment of the present application can measure and predict the radiation intensity of the scene to be detected in real time. For each moment, the predicted radiation intensity at that moment can be predicted by using the radiation intensity to be utilized at the historical moment before that moment. When that moment arrives, the radiation intensity to be utilized at that moment can be measured by using the radiation measuring instrument 10. That is to say, when that moment arrives, the controller 104 can obtain the radiation intensity to be utilized at that moment and can obtain the predicted radiation intensity at that moment. The controller 104 can calculate the difference between the radiation intensity to be utilized at that moment and the predicted radiation intensity at that moment, and can determine whether the obtained difference is greater than a preset difference. The obtained difference being greater than the preset difference also indicates that the accuracy of the radiation intensity to be utilized at that moment is not high and an alarm needs to be issued. Therefore, if the obtained difference is greater than the preset difference, the alarm condition is satisfied.

[0140] When it is determined that the alarm condition is satisfied, the controller 104 may trigger an alarm. In this way, an alarm can be triggered when the radiation intensity to be utilized and / or the predicted radiation intensity exceeds the limit, or when the accuracy of the obtained radiation intensity to be utilized is not high, so as to remind the staff to take protective measures in time and strengthen the monitoring of the scene to be detected. While accurately predicting the radiation intensity of the scene to be detected, the radiation risk is prompted in time to further ensure the safety of the staff and the environment.

[0141] In one implementation, the controller 104 in the embodiment of the present application may be an FPGA (Field Programmable Gate Array) or a single-chip microcomputer.

[0142] In another implementation, the controller 104 may include: an FPGA and a single-chip microcomputer.

[0143] The timer 103 is specifically configured to send the obtained duration to be utilized to the FPGA;

[0144] An FPGA is configured to calculate the average level of the first number of received utilization durations when each utilization duration is received, calculate the ratio of a preset constant to the obtained average level, obtain the radiation intensity at the reception moment of the earliest received utilization duration among the first number of utilization durations as the utilization radiation intensity to be utilized, and send the obtained utilization radiation intensity to the single-chip microcomputer.

[0145] A single-chip microcomputer is configured to send the received utilization radiation intensity to the first host computer 20; and determine whether the alarm condition is satisfied.

[0146] The first host computer 20 is configured to send the obtained predicted radiation intensity to the single-chip microcomputer.

[0147] In the embodiment of the present application, the controller 104 includes: an FPGA and a single-chip microcomputer. The model of the single-chip microcomputer can be selected according to needs and is not specifically limited. For example, the single-chip microcomputer can be STM32 (such as STM32F4), or it can also be the RA series (such as RA8D1). The timer 103 can send the obtained utilization duration to the FPGA. Correspondingly, when each utilization duration is received, the FPGA can calculate the average level of the first number of received utilization durations, calculate the ratio of a preset constant to the obtained average level, and obtain the utilization radiation intensity at the reception moment of the earliest received utilization duration among the first number of utilization durations. And the FPGA can send the obtained utilization radiation intensity to the single-chip microcomputer. The FPGA and the single-chip microcomputer can communicate through SPI (Serial Peripheral Interface). The single-chip microcomputer can send the received utilization radiation intensity to the first host computer 20 and can determine whether the alarm condition is satisfied. The communication method between the single-chip microcomputer and the first host computer 20 can refer to the relevant description in the subsequent embodiments.

[0148] Based on the above processing, the FPGA can be used to calculate the utilization radiation intensity to be utilized, and the single-chip microcomputer is used to communicate with the first host computer 20 and determine whether the alarm condition is satisfied. That is, the single-chip microcomputer is used as the core control unit, and the FPGA is used as the calculation and storage unit. Compared with the method of only using the FPGA as the controller, there is no need for the FPGA to communicate with the first host computer 20 and determine whether the alarm condition is satisfied. While utilizing the powerful data processing ability of the FPGA, the occupation of the FPGA's computing resources can be reduced, avoiding affecting the calculation of the utilization radiation intensity to be utilized. In this way, the accuracy of the calculated utilization radiation intensity to be utilized can be further ensured to improve the data accuracy. Subsequently, using the utilization radiation intensity with higher accuracy for prediction can also improve the accuracy of the obtained predicted radiation intensity, further ensuring that the radiation intensity of the scene to be detected can be accurately predicted.

[0149] The FPGA can also preprocess the received data to filter out the noise interference in the data. For example, the FPGA can perform preprocessing based on a preset filtering algorithm. For instance, the preset filtering algorithm can be a Kalman filter or a moving average filter. The single-chip microcomputer can also send the received predicted radiation intensity to the FPGA, and the FPGA can store the calculated radiation intensity to be utilized and the received predicted radiation intensity in its own RAM (Random Access Memory). Subsequently, the FPGA can be used to query the radiation intensity to be utilized and the predicted radiation intensity at historical moments.

[0150] In one embodiment, refer to Figure 4 , Figure 4 which is the second structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application. The radiation measuring instrument 10 further includes: an alarm 105;

[0151] a controller 104, specifically configured to send a trigger signal to the alarm 105;

[0152] the alarm 105, configured to give an alarm when receiving the trigger signal.

[0153] In the embodiment of the present application, when it is determined that the alarm condition is satisfied, the controller 104 can send a trigger signal to the alarm 105. When the controller 104 includes an FPGA and a single-chip microcomputer, the single-chip microcomputer can send a trigger signal to the alarm 105. When receiving the trigger signal, the alarm 105 can give an alarm. For example, the alarm 105 can be an audible and visual alarm, such as a buzzer or an LED light. In this way, it can further ensure that while accurately predicting the radiation intensity of the scene to be detected, the radiation risk is promptly prompted, further ensuring the safety of the staff and the environment.

[0154] In one embodiment, refer to Figure 5 , Figure 5 which is the structural schematic diagram of a radiation measuring instrument 10 provided by the embodiment of the present application. The radiation measuring instrument 10 may include: a detector 501, a single-chip microcomputer and a control circuit 502, a buzzer 503, and a power supply 504. The detector 501 is the Geiger counter 101 in the above embodiment, and the single-chip microcomputer and the control circuit 502 are the controller 104 in the above embodiment. That is, in this embodiment, the controller 104 can be a single-chip microcomputer, and the buzzer 503 is the alarm 105 in the above embodiment. The power supply 504 can supply power to the detector 501, the single-chip microcomputer and the control circuit 502, and the buzzer 503.

[0155] In one embodiment, as Figure 4 shown, the radiation measuring instrument 10 further includes: a display 106;

[0156] The first host computer 20 is further configured to send the obtained predicted radiation intensity to the controller 104;

[0157] The controller 104 is further configured to send the radiation intensity to be utilized obtained and the received predicted radiation intensity to the display 106;

[0158] The display 106 is configured to display the received radiation intensity.

[0159] In the embodiment of the present application, the controller 104 may further send the radiation intensity to be utilized obtained and the received predicted radiation intensity to the display 106. For example, the display 106 may be an LCD (Liquid Crystal Display). When the controller 104 includes an FPGA and a single-chip microcomputer, the single-chip microcomputer may send the radiation intensity to be utilized obtained and the received predicted radiation intensity to the display 106. The display 106 may display the received radiation intensity. The display mode of the display 106 may be set as needed and is not specifically limited.

[0160] For example, the display 106 may display the received radiation intensity and predicted radiation intensity in the form of a waveform diagram, or the display 106 may also display the values of the received radiation intensity and predicted radiation intensity in sequence according to the time sequence. For example, the display 106 may display a first waveform diagram of the radiation intensity to be utilized received and a second waveform diagram of the predicted radiation intensity, and the first waveform diagram and the second waveform diagram are aligned according to the moment. When the difference between the radiation intensity to be utilized at a moment and the predicted radiation intensity at that moment is relatively large, the display 106 may display the radiation intensity at that moment in a display mode different from the radiation intensity at other moments. For example, the radiation intensity to be utilized at that moment and the predicted radiation intensity at that moment may be highlighted in red. In this way, the staff can intuitively view the change trend of the radiation intensity of the scene to be detected, and further ensure that the radiation intensity of the scene to be detected can be accurately monitored.

[0161] In one embodiment, refer to Figure 6 , Figure 6 which is a schematic structural diagram of another radiation measuring instrument 10 provided by the embodiment of the present application. The radiation measuring instrument 10 may include: a detector 601, a single-chip microcomputer and a control circuit 602, a display 603, and a power supply 604. The detector 601 is the Geiger counter 101 in the above embodiment, the single-chip microcomputer and the control circuit 602 are the controller 104 in the above embodiment, that is, in this embodiment, the controller 104 may be a single-chip microcomputer, and the display 603 is the display 106 in the above embodiment. The power supply 604 may supply power to the detector 601, the single-chip microcomputer and the control circuit 602, and the display 603.

[0162] In one embodiment, refer to Figure 7 , Figure 7 which is a schematic structural diagram of another radiation measuring instrument 10 provided by an embodiment of the present application. The radiation measuring instrument 10 may include: a probe 701, a shaping module 702, a voice and alarm module 703, a single-chip microcomputer system 704, a keyboard input module 705, a display module 706, a voltage stabilizing module 707, a battery module 708, and a high-voltage and low-voltage generation module 709. The probe 701 is the Geiger counter 101 in the above embodiment, the shaping module 702 is the signal conditioning circuit in the above embodiment, and the voice and alarm module 703 is the alarm 105 in the above embodiment. The single-chip microcomputer system 704 is the controller 104 in the above embodiment. In this embodiment, the controller 104 may be a single-chip microcomputer or an FPGA, or may include an FPGA and a single-chip microcomputer. Through the keyboard input module 705, control operations for the radiation measuring instrument 10 can be triggered. For example, the voice and alarm module 703 can be controlled to stop alarming, or the probe 701 can be controlled to stop detecting. The display module 706 is the display 106 in the above embodiment. The voltage stabilizing module 707 can stabilize the voltage output by the battery module 708 at a preset voltage value to ensure long-term stable power supply for the radiation measuring instrument 10. The high-voltage and low-voltage generation module 709 may include a high-voltage module and a low-voltage module. The high-voltage module is the high-voltage power supply in the above embodiment and can provide a working voltage for the probe 701, and the low-voltage module can provide a working voltage for modules such as the single-chip microcomputer system 704 and the shaping module 702.

[0163] In one embodiment, refer to Figure 8 , Figure 8 which is a third schematic structural diagram of the radiation intensity detection system provided by an embodiment of the present application. The radiation measuring instrument 10 further includes: a network card 107; the network card 107 is connected to the controller 104; the controller 104 performs data interaction with the first host computer 20 through the network card 107.

[0164] In an embodiment of the present application, the radiation measuring instrument 10 may further include a network card 107. The model of the network card 107 is not specifically limited as long as it can realize the communication between the controller 104 and the first host computer 20. For example, the network card 107 may be an ENC28J60 or a DM9051. Through the network card 107, an Ethernet can be accessed, and the controller 104 and the first host computer 20 can perform data interaction through the network card 107. When the controller 104 includes an FPGA and a single-chip microcomputer, the network card 107 can be connected to the single-chip microcomputer, and the single-chip microcomputer and the first host computer 20 can perform data interaction through the network card 107.

[0165] Based on the above processing, the interaction between the controller 104 and the first host computer 20 can be realized through the network card 107, which further ensures that the radiation intensity of the scene to be detected can be accurately predicted. The network card 107 can also be called an Ethernet PHY (Physical, port physical layer) chip. By using the network card 107 to realize the interaction between the controller 104 and the first host computer 20, data transmission can be carried out using Ethernet, so as to ensure that the collected data can be processed in real time, avoid data collection delay, improve the stability and transmission distance of data transmission, and at the same time realize full-duplex communication, greatly improving the data transmission speed and accelerating the transmission efficiency. Compared with the serial communication method, the data transmission speed can be increased from 20 kbps (kilobits per second) to 10 Mbps (megabits per second).

[0166] In one embodiment, refer to Figure 9 , Figure 9 which is the fourth structural schematic diagram of the radiation intensity detection system provided by the embodiment of the present application. The radiation intensity measurement system further includes: a second host computer 30, a router 40, and a server 50; the network card 107 is communicatively connected to the router 40; the router 40 is communicatively connected to the server 50;

[0167] The first host computer 10 is further configured to send the obtained predicted radiation intensity to the router 40 through the network card 107;

[0168] The router 40 is configured to send the received predicted radiation intensity to the controller 104;

[0169] The controller 104 is further configured to send the radiation intensity to be utilized obtained and the received predicted radiation intensity to the router 40 respectively through the network card 107;

[0170] The router 40 is further configured to send the received radiation intensity to be utilized to the server 50 and the first host computer 10 respectively, and send the received predicted radiation intensity to the server 50;

[0171] The server 50 is configured to send the received radiation intensity to be utilized and the predicted radiation intensity to the second host computer 30;

[0172] The second host computer 30 is configured to display the received radiation intensity to be utilized and the predicted radiation intensity.

[0173] In an embodiment of the present application, the radiation intensity measurement system may further include a second host computer 30, a router 40, and a server 50. The first host computer 20 may send the obtained predicted radiation intensity to the network card 107 to send the obtained predicted radiation intensity to the router 40 through the network card 107. Correspondingly, the router 40 may send the received predicted radiation intensity to the controller 104. The controller 104 may send the radiation intensity to be utilized obtained through the network card 107 to the router 40. Correspondingly, the router 40 may send the received radiation intensity to be utilized to the first host computer 20. That is, the first host computer 20 and the controller 104 may perform data interaction through the network card 107 and the router 40. The router 40 and the first host computer 20 may communicate through the TCP / IP (Transmission Control Protocol / Internet Protocol) protocol.

[0174] After receiving the predicted radiation intensity, the controller 104 may send the received predicted radiation intensity to the router 40 through the network card 107. The router 40 may send the received predicted radiation intensity to the server 50, and after receiving the radiation intensity to be utilized, the router 40 may send the received radiation intensity to be utilized to the server 50. Correspondingly, the server 50 may send the received radiation intensity to be utilized and the predicted radiation intensity to the second host computer 30. The second host computer 30 may then display the received radiation intensity to be utilized and the predicted radiation intensity. The manner of displaying the radiation intensity may refer to the relevant description of the manner of displaying the radiation intensity of the first host computer 20 in the above embodiment.

[0175] For example, the server 50 may be a web server. The staff may open a preset web page through the second host computer 30, and the web server may send the received radiation intensity to be utilized and the predicted radiation intensity to the preset web page. The second host computer 30 may be one or more. Correspondingly, the preset web page may display the received radiation intensity to be utilized and the predicted radiation intensity. In this way, the staff may intuitively and conveniently view the change trend of the radiation intensity on the remote terminal (i.e., the second host computer 30) by logging in to the preset web page, so as to monitor the radiation intensity of the scene to be detected and timely discover radiation risks.

[0176] Based on the above processing, it is possible to monitor the radiation intensity of the scene to be detected by using multiple host computers. That is, multiple staff members may simultaneously monitor the radiation intensity of the scene to be detected through different terminals. Further ensure the reliability of monitoring the radiation intensity of the scene to be detected. And it may be connected to the Ethernet to realize real-time monitoring in combination with the Internet of Things, which can improve the safety and management efficiency of the nuclear power plant waiting for the detection scene and meet the needs of the staff for efficient and safe monitoring.

[0177] In one embodiment, the second host computer 30 is further used to send a control instruction representing the control operation to the server 50 in response to the control operation on the radiation measuring instrument 10;

[0178] The server 50 is also used to send the received control instruction to the network card 107 through the router 40;

[0179] The network card 107 is also used to send the received control instructions to the controller 104;

[0180] The controller 104 is further configured to execute the control operation indicated by the control instruction when receiving the control instruction.

[0181] In the embodiment of the present application, the second host computer 30 may send a control instruction representing the control operation to the server 50 in response to the control operation on the radiation measuring instrument 10. The control operation on the radiation measuring instrument 10 may be triggered by a staff member using the second host computer 30. For example, the staff member using the second host computer 30 may trigger the control control set in the second host computer 30 to trigger the control operation. For example, the control operation on the radiation measuring instrument 10 may be a stop detection operation or an alarm release operation.

[0182] The server 50 can send the received control instruction to the network card 107 through the router 40, and correspondingly, the network card 107 can send the received control instruction to the controller 104. When receiving the control instruction, the controller 104 can execute the control operation indicated by the control instruction. For example, when the control operation is to stop the detection operation, the controller 104 can stop working so that the radiation measuring instrument 10 stops measuring the radiation intensity of the scene to be detected. When the control operation is to release the alarm operation, the controller 104 can control the end of the alarm, such as the controller 104 can send an end alarm signal to the alarm 105, and when the alarm end signal is received, the alarm 105 can end the alarm.

[0183] Based on the above processing, the radiation measuring instrument 10 can be controlled by the second host computer 30. In this way, while ensuring that the radiation intensity of the scene to be detected is accurately predicted, the radiation measuring instrument 10 used to measure the radiation intensity in the radiation intensity detection system can be controlled, which can improve the operational convenience in the process of monitoring the radiation intensity of the scene to be detected.

[0184] In one embodiment, see Figure 10 , Figure 10This is the fifth structural schematic diagram of the radiation intensity detection system provided by the embodiments of the present application. The radiation intensity detection system may include: a radiation measuring instrument 1001, a host computer 1002, and a router 1003. The host computer 1002 can communicate with the router 1003. The radiation measuring instrument 1001 is the radiation measuring instrument 10 in the above embodiments. The host computer 1002 may include the first host computer 20 and the second host computer 30 in the above embodiments. The router 1003 is the router 40 in the above embodiments. The prediction model deployed on the host computer 1002 may be an LSTM model. The radiation measuring instrument 1001 includes: a high-voltage DC module 10011, a Geiger counter tube 10012, a signal conditioning circuit 10013 (which may also be referred to as a signal conditioning module), a timing trigger circuit 10014 (which may also be referred to as a signal generation module), a field programmable gate array 10015, a single-chip microcomputer 10016, an alarm 10017 (which may also be referred to as an over-limit alarm module), a display 10018 (which may also be referred to as a dose display module), and a network card 10019 (which may also be referred to as an Ethernet transmission module). The field programmable gate array 10015 and the single-chip microcomputer 10016 may be referred to as signal processing modules. The high-voltage DC module 10011 is the high-voltage power supply in the above embodiments and can provide voltages of 380V and 250V for the Geiger counter tube 10012. The Geiger counter tube 10012 is the Geiger counter 101 in the above embodiments. The signal conditioning circuit 10013 is the signal conditioning circuit in the above embodiments. The timing trigger circuit 10014 is the timer in the above embodiments and can control the voltage change, that is, it can control the high-voltage DC module 10011 to switch the voltage magnitude. The field programmable gate array 10015 is the FPGA in the above embodiments. The single-chip microcomputer 10016 is the single-chip microcomputer in the above embodiments and may be an STM32. The FPGA and the single-chip microcomputer can communicate through SPI. The alarm 10017 is the alarm 105 in the above embodiments. The display 10018 is the display 106 in the above embodiments and may be an LCD. The network card 10019 is the network card 107 in the above embodiments and may be an ENC28J60. Through the network card 10019, it can access the Ethernet and communicate with the router 40.

[0185] Based on the same inventive concept, an embodiment of the present application further provides a radiation intensity detection method, which is applied to a radiation intensity detection system. The system includes: a radiation measuring instrument and a first host computer; the radiation measuring instrument includes: a Geiger counter, an electronic switch, a timer, and a controller; the electronic switch is used to control the Geiger counter to switch its working state; the first host computer is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment. The radiation intensity detection system in this embodiment is the radiation intensity detection system described in any of the above embodiments, and specific reference can be made to the relevant descriptions of the above embodiments.

[0186] See Figure 11 , Figure 11 is a schematic flowchart of a radiation intensity detection method provided by an embodiment of the present application. The radiation intensity detection method may include:

[0187] Step S1101: In the working state, the Geiger counter performs radiation ray detection on the scene to be detected, obtains a pulse signal, and sends the detected pulse signal to the timer.

[0188] Step S1102: The timer receives the pulse signal sent by the Geiger counter, determines the duration between the start reception moment of each received pulse signal and the moment when the rising edge of the pulse signal appears, obtains the duration to be utilized, and sends the obtained duration to be utilized to the controller, and sends a timing end signal to the electronic switch when the rising edge of each pulse signal appears.

[0189] Step S1103: Each time the timing end signal is received, the electronic switch controls the Geiger counter to end its work, and controls the Geiger counter to start working when a preset duration is reached after each reception of the timing end signal.

[0190] Step S1104: When each duration to be utilized is received, the controller calculates the average level of the first number of durations to be utilized received most recently, and calculates the ratio of a preset constant to the obtained average level, obtains the radiation intensity at the reception moment of the earliest received duration to be utilized among the first number of durations to be utilized as the duration to be utilized radiation intensity, and sends the obtained duration to be utilized radiation intensity to the first host computer.

[0191] Step S1105: When a preset prediction period is reached, the first host computer uses the prediction model to process the second number of durations to be utilized radiation intensity received most recently, and obtains the predicted radiation intensity at multiple future moments.

[0192] Based on the above processing, the current scenario that needs to be detected for radiation intensity can be called the scenario to be detected. The prediction model can be trained in advance using the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment, so that the prediction model can learn the ability to predict the radiation intensity at future moments based on the radiation intensity at historical moments. And a radiation measuring instrument including a Geiger counter, an electronic switch, a timer, and a controller can be used to detect radiation rays in the scenario to be detected to measure the radiation intensity (i.e., the radiation intensity to be utilized). And the controller can communicate with the upper computer (i.e., the first upper computer) to send the obtained radiation intensity to be utilized to the first upper computer. Furthermore, the first upper computer can then use the prediction model to predict the radiation intensity at future moments (i.e., the predicted radiation intensity) in combination with the received radiation intensity to be utilized. And since the prediction model is trained based on the true radiation intensity at historical moments, it can accurately predict the radiation intensity at future moments according to the received radiation intensity to be utilized. In this way, it is possible to accurately predict the radiation intensity of the scenario to be detected.

[0193] In one embodiment, the radiation measuring instrument further includes: a network card; the network card is connected to the controller; the controller and the first upper computer perform data interaction through the network card.

[0194] In one embodiment, the system further includes: a second upper computer, a router, and a server; the network card is communicatively connected to the router; the router is communicatively connected to the server; the method further includes:

[0195] The first upper computer sends the obtained predicted radiation intensity to the router through the network card;

[0196] The router sends the received predicted radiation intensity to the controller;

[0197] The controller sends the obtained radiation intensity to be utilized and the received predicted radiation intensity to the router respectively through the network card;

[0198] The router sends the received radiation intensity to be utilized to the server and the first upper computer respectively, and sends the received predicted radiation intensity to the server;

[0199] The server sends the received radiation intensity to be utilized and the predicted radiation intensity to the second upper computer;

[0200] The second upper computer displays the received radiation intensity to be utilized and the predicted radiation intensity.

[0201] In one embodiment, the method further includes:

[0202] The second upper computer sends a control instruction representing the control operation to the server in response to a control operation for the radiation measuring instrument;

[0203] The server sends the received control instruction to the network card through the router;

[0204] The network card sends the received control instruction to the controller;

[0205] When receiving the control instruction, the controller executes the control operation indicated by the control instruction.

[0206] In one embodiment, the method further includes:

[0207] The first upper computer sends the obtained predicted radiation intensity to the controller;

[0208] When it is determined that an alarm condition is satisfied, the controller triggers an alarm; wherein, the alarm condition includes at least one of the following: the to-be-utilized radiation intensity obtained is greater than a preset threshold; the predicted radiation intensity received is greater than the preset threshold; the difference between the to-be-utilized radiation intensity at a moment obtained and the predicted radiation intensity at this moment is greater than a preset difference.

[0209] In one embodiment, the radiation measuring instrument further includes: an alarm; the controller triggering an alarm includes:

[0210] The controller sends a trigger signal to the alarm;

[0211] The method further includes:

[0212] When receiving the trigger signal, the alarm gives an alarm.

[0213] In one embodiment, the radiation measuring instrument further includes: a display; the method further includes:

[0214] The first upper computer sends the obtained predicted radiation intensity to the controller;

[0215] The controller sends the to-be-utilized radiation intensity obtained and the predicted radiation intensity received to the display;

[0216] The display displays the received radiation intensity.

[0217] In one embodiment, the controller includes: a field programmable gate array and a single-chip microcomputer;

[0218] The timer sending the obtained to-be-utilized duration to the controller includes:

[0219] The timer sends the obtained to-be-utilized duration to the field programmable gate array;

[0220] The method further includes:

[0221] When each to-be-utilized duration is received, the field programmable gate array calculates the average level of the first number of to-be-utilized durations received most recently, calculates the ratio of a preset constant to the obtained average level, obtains the radiation intensity at the reception moment of the earliest received to-be-utilized duration among the first number of to-be-utilized durations as the to-be-utilized radiation intensity, and sends the obtained to-be-utilized radiation intensity to the single-chip microcomputer;

[0222] The single-chip microcomputer sends the received to-be-utilized radiation intensity to the first upper computer; and determines whether an alarm condition is satisfied;

[0223] The first upper computer sends the obtained predicted radiation intensity to the single-chip microcomputer.

[0224] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0225] Each embodiment in this specification is described in a related manner. The same or similar parts among the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for method embodiments, since they are basically similar to system embodiments, they are described relatively simply, and the relevant parts can be referred to the description of the system embodiments.

[0226] The above is only the preferred embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A radiation intensity detection system, characterized in that, The system includes: a radiation meter and a first upper computer; the radiation meter includes: a Geiger counter, an electronic switch, a timer, and a controller; the electronic switch is used to control the Geiger counter to switch the working state; the first upper computer is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment; The Geiger counter is used to detect radiation rays in the to-be-detected scene when in the working state, obtain a pulse signal, and send the detected pulse signal to the timer; The timer is used to receive the pulse signal sent by the Geiger counter, determine the duration between the start reception moment of each received pulse signal and the moment when the pulse signal appears at the rising edge, obtain the duration to be utilized, and send the obtained duration to be utilized to the controller, and send a timing end signal to the electronic switch when the rising edge of each pulse signal appears; The electronic switch is used to control the Geiger counter to end the working state each time it receives the timing end signal, and control the Geiger counter to start working when a preset duration is reached after each time it receives the timing end signal; The controller is used to calculate the average level of the first number of durations to be utilized received latest when receiving each duration to be utilized, and calculate the ratio of a preset constant to the obtained average level, obtain the radiation intensity at the reception moment of the earliest received duration to be utilized among the first number of durations to be utilized as the radiation intensity to be utilized, and send the obtained radiation intensity to be utilized to the first upper computer; The first upper computer is used to process the second number of radiation intensities to be utilized received latest by using the prediction model when a preset prediction period is reached, and obtain the predicted radiation intensities at multiple future moments.

2. The system according to claim 1, wherein The radiation meter further includes: a network card; the network card is connected to the controller; the controller and the first upper computer perform data interaction through the network card.

3. The system according to claim 2, wherein The system further includes: a second upper computer, a router, and a server; the network card is communicatively connected to the router; the router is communicatively connected to the server; The first upper computer is further used to send the obtained predicted radiation intensity to the router through the network card; The router is used to send the received predicted radiation intensity to the controller; The controller is further used to send the obtained radiation intensity to be utilized and the received predicted radiation intensity to the router through the network card respectively; The router is further used to send the received radiation intensity to be utilized to the server and the first upper computer respectively, and send the received predicted radiation intensity to the server; The server is used to send the received radiation intensity to be utilized and the predicted radiation intensity to the second upper computer; The second upper computer is used to display the received radiation intensity to be utilized and the predicted radiation intensity.

4. The system according to claim 3, wherein The second upper computer is further configured to send a control instruction characterizing the control operation to the server in response to a control operation on the radiation measuring instrument; The server is further configured to send the received control instruction to the network card through the router; The network card is further configured to send the received control instruction to the controller; The controller is further configured to execute the control operation indicated by the control instruction when the control instruction is received.

5. The system according to claim 1, wherein The first upper computer is further configured to send the obtained predicted radiation intensity to the controller; The controller is further configured to trigger an alarm when it is determined that the alarm condition is satisfied; wherein the alarm condition includes at least one of the following: the obtained radiation intensity to be utilized is greater than a preset threshold; the received predicted radiation intensity is greater than the preset threshold; the difference between the obtained radiation intensity to be utilized at a certain moment and the predicted radiation intensity at that moment is greater than a preset difference.

6. The system according to claim 5, wherein The radiation measuring instrument further includes: an alarm; The controller is specifically configured to send a trigger signal to the alarm; The alarm is configured to give an alarm when the trigger signal is received.

7. The system according to claim 1, characterized in that The radiation measuring instrument further includes: a display; The first upper computer is further configured to send the obtained predicted radiation intensity to the controller; The controller is further configured to send the obtained radiation intensity to be utilized and the received predicted radiation intensity to the display; The display is configured to display the received radiation intensity.

8. The system according to any one of claims 1-7, characterized in that, The controller includes: a field programmable gate array and a single-chip microcomputer; The timer is specifically configured to send the obtained utilization duration to the field programmable gate array; The field programmable gate array is configured to calculate the average level of the first number of received utilization durations when each utilization duration is received, and calculate the ratio of a preset constant to the obtained average level, so as to obtain the radiation intensity at the reception moment of the earliest received utilization duration among the first number of utilization durations as the radiation intensity to be utilized, and send the obtained radiation intensity to be utilized to the single-chip microcomputer; The single-chip microcomputer is configured to send the received radiation intensity to be utilized to the first upper computer; and determine whether the alarm condition is satisfied; The first upper computer is configured to send the obtained predicted radiation intensity to the single-chip microcomputer.

9. A radiation intensity detection method, characterized in that, Applied to a radiation intensity detection system, the system includes: a radiation measuring instrument and a first upper computer; the radiation measuring instrument includes: a Geiger counter, an electronic switch, a timer and a controller; the electronic switch is used to control the Geiger counter to switch the working state; the first upper computer is deployed with a pre-trained prediction model; the prediction model is pre-trained based on the sample radiation intensity at the first sample moment and the sample radiation intensity at the second sample moment after the first sample moment; the method includes: In the working state, the Geiger counter performs radiation ray detection on the scene to be detected, obtains a pulse signal, and sends the detected pulse signal to the timer; The timer receives the pulse signals sent by the Geiger counter, determines the duration between the start receiving moment of each received pulse signal and the moment when the rising edge of the pulse signal appears, obtains the duration to be utilized, and sends the obtained duration to the controller, and sends a timing end signal to the electronic switch when the rising edge of each pulse signal appears; Each time when receiving the timing end signal, the electronic switch controls the Geiger counter to end its operation, and controls the Geiger counter to start its operation when a preset duration is reached after each reception of the timing end signal; When receiving each duration to be utilized, the controller calculates the average level of the first number of durations to be utilized received most recently, and calculates the ratio of a preset constant to the obtained average level, obtains the radiation intensity at the reception moment of the earliest received duration among the first number of durations to be utilized as the radiation intensity to be utilized, and sends the obtained radiation intensity to be utilized to the first upper computer; When a preset prediction period is reached, the first upper computer processes the second number of radiation intensities to be utilized received most recently by using the prediction model, and obtains the predicted radiation intensities at multiple future moments.

10. The method according to claim 9, wherein The radiation measuring instrument further includes: a network card; the network card is connected to the controller; the controller and the first upper computer perform data interaction through the network card.

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