CN110988963A - Remote real-time monitoring method and device for nuclear radiation source equipment - Google Patents
Remote real-time monitoring method and device for nuclear radiation source equipment Download PDFInfo
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Abstract
The invention discloses a remote real-time monitoring method of nuclear radiation source equipment, which comprises the following steps: (1) setting remote monitoring equipment and an airborne monitoring device; (2) setting nuclear radiation detection modules which work alternately; (3) the singlechip module controls the nuclear radiation detection module and counts; (4) the device is powered on; (5) the radiation quantity is in a radiation value range, and the first nuclear radiation detection module monitors the radiation quantity; (6) when the radiation quantity exceeds the low-intensity high-point threshold value, the second nuclear radiation detection module is started; (7) the radiation amount is in a low energy range again, and the first nuclear radiation detection module is started; (8) the radiation quantity exceeds the low-intensity high-point threshold value again, and the second nuclear radiation detection module is started; (9) the radiation amount is in a low energy range again, and the first nuclear radiation detection module is started; (10) repeating (4) to (9) to monitor the nuclear radiation source device; the nuclear radiation source device may be determined based on the single-chip counter value. The method can prevent damage to the nuclear radiation source device.
Description
Technical Field
The invention relates to the field of radiation safety monitoring, in particular to a remote real-time monitoring method and a remote real-time monitoring device for nuclear radiation source equipment.
Background
With the rapid development of nuclear technology and information technology, the application market of nuclear radiation sources is becoming widespread. Through applications in industry, agriculture, medicine and research, radiation sources provide great benefits to human beings and society, and make important contributions to technological progress. Meanwhile, the radiation source is not well managed, which causes serious harm to the environment and human health. At present, the traditional supervision modes of the radiation source mainly comprise locking, warning, manual nursing and the like, but the loss and leakage accidents caused by human factors are all the same, and great threats are brought to the social and public safety.
In the prior art, the monitoring of the radioactive source equipment is mainly carried out by adopting a fixed monitor outside the radioactive source, wherein the fixed monitor realizes the tracking and alarming of the radioactive source equipment through a GPS positioning method outdoors and a base station positioning method indoors, the accurate position of the radioactive source equipment is reported to a GIS platform of a monitoring center, and meanwhile, the alarming functions of boundary crossing, vibration, inclination, commercial power cut-off alarming and the like can be realized. When the radioactive source equipment is stolen or moved outdoors, the GPS can immediately enter a working state, and sends accurate position information to the management platform through the GPRS wireless communication function, so that the management platform can know the moving direction and speed of the radioactive source equipment in detail, and can visually display the real-time coordinate and the accurate position of the supervised radioactive source equipment on an electronic map, thereby realizing all-weather supervision.
The Chinese invention patent with the patent application number of 201410009499.2 provides an intelligent radiation monitor, which comprises a microprocessor, a GPS positioning unit, a GPRS wireless communication and auxiliary positioning unit, a direct-current power supply, a radiation dose detector and an anti-dismantling signal processing unit, wherein the radiation dose detector is a Geiger-Maitreya counter tube; the anti-dismantling signal processing unit is a closed signal loop unit and is connected between the casing of the radioactive source equipment to be monitored and the microprocessor through a closed loop; the radiation dose detector, the GPS positioning unit and the GPRS wireless communication and auxiliary positioning unit are respectively in signal connection with the microprocessor, leakage supervision of the radioactive source equipment can be achieved to a certain extent, and the requirements of various industries on safe use of fixed radioactive source equipment are met.
However, the current radiation monitoring devices still have certain limitations, and generally, the radiation monitoring devices are used for detecting a fixed nuclear radiation source and detecting the radiation source beyond a certain distance (such as 10 to 50 meters) from the radiation source, but are not suitable for detecting a mobile nuclear radiation source device such as a portable mobile flaw detector.
In the prior art, mobile nuclear radiation source detection equipment such as a mobile gamma-ray flaw detector and the like is widely applied to the internal quality inspection of welding seams and castings, such as the welding seams of various pressurized containers, boilers, ship bodies, oil and gas pipelines and the like, pressurized castings of various steel casting valves, pump bodies, oil drilling and chemical engineering and oil refining equipment, precisely cast turbine blades, various aluminum-magnesium alloy castings for aviation and automobile industries and the like, because the equipment has a simple structure, is convenient to operate and carry, and does not use water and electricity. However, the radioactive source emits rays, which causes great harm to people, and the careless operation can cause radiation to people, so that the probability of leukemia is increased, and radiation accidents are caused. Therefore, the radiation protection and accurate monitoring of the mobile gamma-ray flaw detector must be paid attention to and the mobile gamma-ray flaw detector is guaranteed to be used safely.
Since the nuclear radiation source flaw detection equipment such as a mobile gamma ray flaw detector needs to be moved and the position of the nuclear radiation source flaw detection equipment is not fixed, a monitoring device of the nuclear radiation source flaw detection equipment needs to be moved together with the nuclear radiation source flaw detection equipment, and the monitoring equipment does not exist at present. A mobile nuclear radiation source flaw detection device, wherein a nuclear radiation source is usually installed in a safety shielding box (lead or depleted uranium material), the radiation intensity around the device is not large, but when the device (such as a gamma flaw detector) carries out flaw detection operation, the radiation source can be led out of the shielding box and can be always led out from one direction, so that the peripheral radiation intensity is particularly large, and irreversible damage can be easily caused to monitoring equipment arranged in a close distance; if the sensitivity of the nuclear radiation detection module is too low, the precision of the detection result of the radiation source is influenced; if the sensitivity is too high, the monitoring device is easily destroyed by the high intensity radiation and fails.
Disclosure of Invention
The invention aims to provide a method and a device for remotely monitoring nuclear radiation source equipment in real time aiming at the defects of the prior art, and is characterized in that a nuclear radiation source equipment monitoring device is arranged on a nuclear radiation source equipment monitoring field, the nuclear radiation source equipment monitoring device and a nuclear radiation source equipment shell are bound and followed one by one, and the monitoring device and the nuclear radiation flaw detection equipment move together, are convenient to carry and use, and realize the follow-up monitoring of the equipment; the nuclear radiation detection device comprises a nuclear radiation detection module, a first nuclear radiation detection module, a second nuclear radiation detection module and a high-strength nuclear radiation detection module, wherein the nuclear radiation detection module is arranged in the device and used for monitoring the nuclear radiation amount of a site in real time, the first nuclear radiation detection module is a low-strength nuclear radiation detection module with high sensitivity, the second nuclear radiation detection module is arranged in a high-strength nuclear radiation detection module made of a radiation-proof material, and the nuclear radiation detection module and the high-strength nuclear radiation detection module are switched to prevent the nuclear radiation source device from being damaged by nuclear radiation when the nuclear radiation source device goes out of a box or.
Meanwhile, a singlechip module is arranged in the nuclear radiation source equipment monitoring device and serves as a main control module of the device, the singlechip module judges the nuclear radiation intensity and counts the times of the nuclear radiation source entering and exiting the nuclear radiation source equipment, and the local off-site monitoring equipment and the remote monitoring equipment can judge the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of the singlechip.
By arranging the local off-site monitoring equipment and the remote monitoring equipment, the remote real-time monitoring of the nuclear radiation source equipment monitoring field can be realized by sending a request signal to the nuclear radiation source equipment monitoring device, and when a single chip module in the device receives the request signal, the image information in the camera module is sent to the remote monitoring equipment or the local monitoring equipment through the wireless communication module.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a remote real-time monitoring method for a nuclear radiation source device comprises the following steps:
(1) setting a remote monitoring device and an onboard nuclear radiation source device monitoring device bound and followed with a nuclear radiation source device shell, setting the device on a monitoring site of the nuclear radiation source device bound with the device, and carrying out uninterrupted monitoring on the working state of the nuclear radiation source device and the position of a nuclear radiation source; the nuclear radiation source equipment monitoring device is internally provided with a wireless communication module which is connected with corresponding local off-site monitoring equipment and remote monitoring equipment through a network;
(2) a first nuclear radiation detection module and a second nuclear radiation detection module which work alternately are arranged in the nuclear radiation source equipment monitoring device; the first nuclear radiation detection module is a low-intensity nuclear radiation detection module with higher sensitivity, and the second nuclear radiation detection module is a high-intensity nuclear radiation detection module placed in a radiation-proof material;
(3) the single chip microcomputer module is arranged in the nuclear radiation source equipment monitoring device and controls the first nuclear radiation detection module and the second nuclear radiation detection module; when the first nuclear radiation detection module or the second nuclear radiation detection module is in a working state, the working nuclear radiation detection module detects the radiation quantity of a radiation source, amplifies and shapes the intensity detection signal of the nuclear radiation ray, converts the intensity detection signal into a level signal acceptable by a single chip microcomputer and transmits the level signal to the single chip microcomputer module, and the single chip microcomputer module judges the intensity of the nuclear radiation quantity and counts the times of the nuclear radiation source entering and exiting the radiation source equipment;
(4) the method comprises the steps that a nuclear radiation source device monitoring device is powered on and initialized, the nuclear radiation source device is in a non-working state at the moment, a first nuclear radiation detection module is used for detecting and monitoring the nuclear radiation source device and the environment radiation quantity, and the initial environment radiation quantity intensity value is input into a single chip microcomputer module; the singlechip module records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N (N is a natural number);
(5) when the intensity values of the nuclear radiation source equipment and the environmental radiation amount detected by the first nuclear radiation detection module are within a set low-intensity radiation value range (such as 0-1 milli-siever), the first nuclear radiation detection module is kept in an electrified monitoring state under the control of the single chip microcomputer, the radiation source equipment and the environmental radiation amount are monitored uninterruptedly, and the single chip microcomputer module records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N +0(N is a natural number); transmitting the collected radiation intensity value signals and the numerical value of the access count to local off-site monitoring equipment or remote monitoring equipment;
(6) when the nuclear radiation source equipment and the environmental radiation amount detected by the first nuclear radiation detection module exceed the threshold value of the high point of the low-intensity radiation value range (such as 1 milli-siever), the first nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the second nuclear radiation detection module is powered on and starts and keeps an uninterrupted monitoring state, the second nuclear radiation detection module detects that the source equipment in the set high-intensity radiation value range (such as 1-400 milli-siever) is uninterruptedly monitored, and the number of times of the nuclear radiation source entering and exiting the source equipment is recorded as N + 1; transmitting the collected radiation intensity value signals and the number of times of entering and exiting equipment to local off-site monitoring equipment or remote monitoring equipment;
(7) when the intensity values of the nuclear radiation source equipment and the environment radiation quantity detected by the second nuclear radiation detection module are within the range of the set low-energy radiation value again (for example, set to 0-1 milli-siever), the second nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the first nuclear radiation detection module is started and keeps a power-on monitoring state, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N + 2; transmitting the collected radiation intensity value signals to local off-site monitoring equipment or remote monitoring equipment;
(8) when the nuclear radiation source equipment and the environmental radiation amount detected by the first nuclear radiation detection module exceed the threshold value of the high point of the low-intensity radiation value range again (for example, set to 1-400 millisiever), the first nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the second nuclear radiation detection module is powered on and started and keeps an uninterrupted monitoring state, the second nuclear radiation detection module detects that the source equipment in the set high-intensity radiation value range (for example, set to 1-400 millisiever) is subjected to uninterrupted monitoring, and the number of times of the nuclear radiation source entering and exiting the source equipment is recorded as N + 3; transmitting the collected radiation intensity value signals and the number of times of entering and exiting equipment to local off-site monitoring equipment or remote monitoring equipment;
(9) when the intensity values of the nuclear radiation source equipment and the environment radiation quantity detected by the second nuclear radiation detection module are within the range of the set low-energy radiation value again (for example, set to 0-1 milli-siever), the second nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the first nuclear radiation detection module is started and keeps a power-on monitoring state, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N + 4; transmitting the collected radiation intensity value signals to local field monitoring equipment or remote monitoring equipment;
(10) repeating the steps (4) to (9), and implementing uninterrupted monitoring on the working state of the nuclear radiation source equipment and the position of the nuclear radiation source; the local off-site monitoring equipment and the remote monitoring equipment can judge the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the counting value of the single chip microcomputer: when the singlechip records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source equipment is in the equipment; when the count is N +1, the nuclear radiation source equipment is in a working state, and the nuclear radiation source is pushed to the outside from the inside of the equipment; when the count is N +2, the nuclear radiation source device is in a working state, and the nuclear radiation source is positioned outside the device; when the count is N +3, the nuclear radiation source equipment is in a working state, the nuclear radiation source is positioned outside the equipment and returns to the equipment from the outside of the equipment; when the count is N +4, the nuclear radiation source device is in a non-operating state, the nuclear radiation source has returned to be inside the device.
As a further improvement of the present invention, the step (4) further comprises the steps of:
(41) the nuclear radiation source equipment monitoring device is also provided with a camera module, when the nuclear radiation source equipment monitoring device is powered on and initialized, a singlechip module in the nuclear radiation source equipment monitoring device starts the camera module, the camera module is adopted to carry out all-weather real-time monitoring on a radiation source monitoring site, and the video of the site is stored; the local off-site monitoring equipment and the remote monitoring equipment can send request signals to the nuclear radiation source equipment monitoring device, and when the single chip microcomputer module in the device receives the request signals, the real-time monitoring camera information in the camera module or the stored monitoring camera information is sent to the local off-site monitoring equipment and the remote monitoring equipment through the wireless communication module, so that the remote real-time monitoring of the nuclear radiation source equipment monitoring site is realized.
As a further improvement of the invention, the step (10) further comprises the following steps:
(101) the local monitoring equipment can receive information transmitted by a corresponding nuclear radiation source equipment monitoring device, and judges the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of a single chip microcomputer module of the nuclear radiation source equipment monitoring device in the information.
(102) The remote monitoring equipment can receive information transmitted by one or more corresponding nuclear radiation source equipment monitoring devices, can select the information transmitted by any one of the nuclear radiation source equipment monitoring devices to judge, and judges the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of the single chip microcomputer module in the nuclear radiation source equipment monitoring device.
The remote real-time detection device for the nuclear radiation source equipment for implementing the method comprises a single chip microcomputer module for realizing a master control function, a first nuclear radiation detection module, a second nuclear radiation detection module, a wireless communication module and a camera module which can work alternately, wherein the first nuclear radiation detection module, the second nuclear radiation detection module, the wireless communication module and the camera module are respectively connected with the single chip microcomputer module; the first nuclear radiation detection module is a low-intensity nuclear radiation detection module with high sensitivity, the second nuclear radiation detection module is a high-intensity nuclear radiation detection module placed in a radiation-proof material, and the wireless communication module is connected with corresponding local off-site monitoring equipment and remote monitoring equipment through a network.
As a further improvement of the invention, the device also comprises a battery module for monitoring the electric quantity of the battery and protecting the battery from overcharge and overdischarge, and the battery module is connected with the single chip microcomputer.
As a further improvement of the invention, the device also comprises an LED display module used for displaying the initial environment radiant quantity intensity value, the real-time environment radiant quantity intensity value and the number of times of the nuclear radiation source entering and exiting the radiation source equipment, and the LED display module is connected with the singlechip module.
As a further improvement of the invention, the device also comprises a key module used for controlling the single chip microcomputer module so as to control the LED display module to display contents, and the key module is connected with the single chip microcomputer module.
As a further improvement of the invention, the remote real-time detection device of the nuclear radiation source equipment is a container with an open side, and the shell of the container is made of radiation-proof materials; the second nuclear radiation detection module, the single chip microcomputer module, the wireless communication module and the battery module are arranged on one side of the device, which is sealed inside the device, and the side of the device adopts a thickened radiation-proof material sealing device; the first nuclear radiation detection module is arranged on one side of an opening in the device, and the side of the device is sealed by a non-radiation-proof material baffle; the first nuclear radiation detection module is isolated from other modules by adopting anti-radiation material isolation plates.
As a further improvement of the present invention, the first nuclear radiation detection module is also provided with an auxiliary radiation protection component, the radiation protection component comprises a radiation protection material baffle which is a fan-shaped cylinder, the radiation protection material baffle is also coated with a radiation protection coating, and when the nuclear radiation source device is in a normal working state, the radiation protection material baffle is arranged on one side of the first nuclear radiation detection module and the radiation protection material isolation plate, and has no influence on nuclear radiation detection of the first nuclear radiation detection module; when the device starts an automatic protection program, the radiation protection material baffle rotates to a preset angle and is placed between the first nuclear radiation detection module and the non-radiation protection material baffle, and then the influence of nuclear radiation on the first detection module is isolated.
As a further development of the invention, the nuclear radiation detection module is designed according to the geiger counter principle, the core component of which is a geiger tube. The Geiger tube is designed according to the ionization property of ray to gas, and is characterized by that a metal tube whose two ends are closed by insulating material is filled with thin gas, and a metal wire electrode is mounted on the axis of the tube, and between the wall of the metal tube and the metal wire electrode a voltage slightly lower than the breakdown voltage of gas in the tube is added.
As a further improvement of the invention, the nuclear radiation detection module adopts an M4011 Geiger tube, a tin oxide cathode of the tube is a coaxial cylindrical thin-wall structure pulse application type halogen tube, and the halogen tube is used for detecting gamma rays of 20 mR/h-120 mR/h and soft β rays of 100-1800 devariates/min.cm & lt 2 & gt at the temperature of a surrounding medium within the range of-40 ℃ to 55 ℃.
As a further improvement of the invention, the single chip microcomputer module adopts a Mega2560 module which is used for debugging and controlling the system in the whole nuclear radiation source equipment monitoring device.
As a further improvement of the present invention, the wireless communication module selects a module based on the SIM868 chip as a main control chip.
Compared with the prior art have the advantages that:
1. the invention discloses a remote real-time monitoring method and a device of nuclear radiation source equipment, and is mainly used for solving the following problems: the nuclear radiation source equipment monitoring device is arranged on a nuclear radiation source equipment monitoring field, and the nuclear radiation source equipment monitoring device and a nuclear radiation source equipment shell are bound and followed one by one, so that the following type monitoring is realized;
2. the nuclear radiation detection module switches the first nuclear radiation detection module and the second nuclear radiation detection module according to the size change of the on-site nuclear radiation quantity, so that the nuclear radiation detection equipment is prevented from being damaged by nuclear radiation when the nuclear radiation source equipment is taken out of a box or returned to the box for operation, and meanwhile, the equipment can be remotely monitored in real time uninterruptedly;
3. the invention relates to a remote real-time monitoring method and a device of nuclear radiation source equipment. The nuclear radiation intensity is judged through the single chip microcomputer module, the number of times of the nuclear radiation source entering and exiting the radiation source device is counted, and the local off-site monitoring device and the remote monitoring device can judge the working state of the nuclear radiation source device and the position of the nuclear radiation source according to the counting value of the single chip microcomputer: when the singlechip records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source equipment is in the equipment; when the count is N +1, the nuclear radiation source equipment is in a working state, and the nuclear radiation source is pushed to the outside from the inside of the equipment; when the count is N +2, the nuclear radiation source device is in a working state, and the nuclear radiation source is positioned outside the device; when the count is N +3, the nuclear radiation source equipment is in a working state, the nuclear radiation source is positioned outside the equipment and returns to the equipment from the outside of the equipment; when the count is N +4, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source is returned to be positioned inside the equipment;
4. the invention relates to a remote real-time monitoring method and a device thereof for nuclear radiation source equipment.A local off-site monitoring device and a remote monitoring device can send a request signal to a monitoring device of the nuclear radiation source equipment;
5. the invention discloses a remote real-time monitoring method and a device of nuclear radiation source equipment.A singlechip module in the nuclear radiation source equipment monitoring device can also transmit an initial environment radiation intensity value, a real-time environment radiation intensity value and an LED display module of the nuclear radiation source access frequency to the LED display module in the device after receiving and processing various information, display the initial environment radiation intensity value, the real-time environment radiation intensity value and the nuclear radiation source access frequency on the device in real time through an LED display screen, and can also generate a control signal to the singlechip module through a key module so as to control the display content of the LED display module.
To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic block diagram of a monitoring device for a nuclear radiation source apparatus according to the present invention;
FIG. 2 is a flow chart of a method for remote real-time monitoring of a nuclear radiation source apparatus of the present invention;
fig. 3 is a schematic cross-sectional view of a first nuclear radiation detection module of the monitoring device of the nuclear radiation source equipment according to the present invention when activated;
FIG. 4 is a schematic cross-sectional view of a first nuclear radiation detection module of the monitoring apparatus for a nuclear radiation source device of the present invention when it is powered off;
FIG. 5 is a schematic circuit diagram of a master control single chip module in the monitoring device of the nuclear radiation source equipment of the present invention;
fig. 6 is a schematic circuit diagram of a wireless communication module in the monitoring device of the nuclear radiation source equipment.
In the drawings: 1. a non-radiation protective material baffle; 2. a first nuclear radiation detection module; 3. a radiation-proof material separator; 4. a shield of radiation protective material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the invention provides a method for remotely monitoring a nuclear radiation source device in real time, comprising the following steps:
(1) setting a remote monitoring device and an onboard nuclear radiation source device monitoring device bound and followed with a nuclear radiation source device shell, setting the device on a monitoring site of the nuclear radiation source device bound with the device, and carrying out uninterrupted monitoring on the working state of the nuclear radiation source device and the position of a nuclear radiation source; the nuclear radiation source equipment monitoring device is internally provided with a wireless communication module which is connected with corresponding local off-site monitoring equipment and remote monitoring equipment through a network;
(2) a first nuclear radiation detection module and a second nuclear radiation detection module which work alternately are arranged in the nuclear radiation source equipment monitoring device; the first nuclear radiation detection module is a low-intensity nuclear radiation detection module with higher sensitivity, and the second nuclear radiation detection module is a high-intensity nuclear radiation detection module placed in a radiation-proof material;
(3) the single chip microcomputer module is arranged in the nuclear radiation source equipment monitoring device and controls the first nuclear radiation detection module and the second nuclear radiation detection module; when the first nuclear radiation detection module or the second nuclear radiation detection module is in a working state, the working nuclear radiation detection module detects the radiation quantity of a radiation source, amplifies and shapes the intensity detection signal of the nuclear radiation ray, converts the intensity detection signal into a level signal acceptable by a single chip microcomputer and transmits the level signal to the single chip microcomputer module, and the single chip microcomputer module judges the intensity of the nuclear radiation quantity and counts the times of the nuclear radiation source entering and exiting the radiation source equipment;
(4) the method comprises the steps that a nuclear radiation source device monitoring device is powered on and initialized, the nuclear radiation source device is in a non-working state at the moment, a first nuclear radiation detection module is used for detecting and monitoring the nuclear radiation source device and the environment radiation quantity, and the initial environment radiation quantity intensity value is input into a single chip microcomputer module; the singlechip module records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N (N is a natural number);
(5) when the intensity values of the nuclear radiation source equipment and the environment radiation amount detected by the first nuclear radiation detection module are within a set low-intensity radiation value range (set to be 0-1 milli-siever), the first nuclear radiation detection module is kept in an electrified monitoring state under the control of the single chip microcomputer, the radiation source equipment and the environment radiation amount are monitored uninterruptedly, and the single chip microcomputer module records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N +0(N is a natural number); transmitting the collected radiation intensity value signals and the numerical value of the access count to local off-site monitoring equipment or remote monitoring equipment;
(6) when the nuclear radiation source equipment and the environmental radiation amount detected by the first nuclear radiation detection module exceed the threshold value of the high point of the low-intensity radiation value range (set as 1 milli-siever), the first nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the second nuclear radiation detection module is powered on and starts and keeps an uninterrupted monitoring state, the second nuclear radiation detection module detects that the source equipment in the set high-intensity radiation value range (which can be set as 1-400 milli-siever) is uninterruptedly monitored, and the number of times of the nuclear radiation source entering and exiting the source equipment is recorded as N + 1; transmitting the collected radiation intensity value signals and the number of times of entering and exiting equipment to local off-site monitoring equipment or remote monitoring equipment;
(7) when the intensity values of the nuclear radiation source equipment and the environment radiation quantity detected by the second nuclear radiation detection module are within the range of the set low-energy radiation value again (set to be 0-1 milli-siever), the second nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the first nuclear radiation detection module is started and keeps a power-on monitoring state, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N + 2; transmitting the collected radiation intensity value signals to local off-site monitoring equipment or remote monitoring equipment;
(8) when the nuclear radiation source equipment and the environment radiation amount detected by the first nuclear radiation detection module exceed the threshold value of the high point of the low-intensity radiation value range again (set as 1-400 millisiever), the first nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the second nuclear radiation detection module is powered on and started and keeps an uninterrupted monitoring state, the second nuclear radiation detection module detects that the source equipment in the set high-intensity radiation value range (set as 1-400 millisiever) is uninterruptedly monitored, and the number of times of the nuclear radiation source entering and exiting the source equipment is recorded as N + 3; transmitting the collected radiation intensity value signals and the number of times of entering and exiting equipment to local off-site monitoring equipment or remote monitoring equipment;
(9) when the intensity values of the nuclear radiation source equipment and the environment radiation quantity detected by the second nuclear radiation detection module are within the range of the set low-energy radiation value again (set to be 0-1 milli-siever), the second nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the first nuclear radiation detection module is started and keeps a power-on monitoring state, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N + 4; transmitting the collected radiation intensity value signals to local field monitoring equipment or remote monitoring equipment;
(10) repeating the steps (4) to (9), and implementing uninterrupted monitoring on the working state of the nuclear radiation source equipment and the position of the nuclear radiation source; the local off-site monitoring equipment and the remote monitoring equipment can judge the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the counting value of the single chip microcomputer: when the singlechip records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source equipment is in the equipment; when the count is N +1, the nuclear radiation source equipment is in a working state, and the nuclear radiation source is pushed to the outside from the inside of the equipment; when the count is N +2, the nuclear radiation source device is in a working state, and the nuclear radiation source is positioned outside the device; when the count is N +3, the nuclear radiation source equipment is in a working state, the nuclear radiation source is positioned outside the equipment and returns to the equipment from the outside of the equipment; when the count is N +4, the nuclear radiation source device is in a non-operating state, the nuclear radiation source has returned to be inside the device.
The step (4) further comprises the following steps:
(41) the nuclear radiation source equipment monitoring device is also provided with a camera module, when the nuclear radiation source equipment monitoring device is powered on and initialized, a singlechip module in the nuclear radiation source equipment monitoring device starts the camera module, the camera module is adopted to carry out all-weather real-time monitoring on a radiation source monitoring site, and the video of the site is stored; the local off-site monitoring equipment and the remote monitoring equipment can send request signals to the nuclear radiation source equipment monitoring device, and when the single chip microcomputer module in the device receives the request signals, the real-time monitoring camera information in the camera module or the stored monitoring camera information is sent to the local off-site monitoring equipment and the remote monitoring equipment through the wireless communication module, so that the remote real-time monitoring of the nuclear radiation source equipment monitoring site is realized.
The step (10) further comprises the steps of:
(101) the local monitoring equipment can receive information transmitted by a corresponding nuclear radiation source equipment monitoring device, and judges the working state of the nuclear radiation source equipment and the position of a nuclear radiation source according to the count value of a single chip microcomputer module of the nuclear radiation source equipment monitoring device in the information;
(102) the remote monitoring equipment can receive information transmitted by one or more corresponding nuclear radiation source equipment monitoring devices, can select the information transmitted by any one of the nuclear radiation source equipment monitoring devices to judge, and judges the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of the single chip microcomputer module in the nuclear radiation source equipment monitoring device.
The remote real-time detection device for the nuclear radiation source equipment for implementing the method comprises a single chip microcomputer module for realizing a master control function, a first nuclear radiation detection module, a second nuclear radiation detection module, a wireless communication module and a camera module which can work alternately, wherein the first nuclear radiation detection module, the second nuclear radiation detection module, the wireless communication module and the camera module are respectively connected with the single chip microcomputer module; the first nuclear radiation detection module is a low-intensity nuclear radiation detection module with high sensitivity, the second nuclear radiation detection module is a high-intensity nuclear radiation detection module placed in a radiation-proof material, and the wireless communication module is connected with corresponding local off-site monitoring equipment and remote monitoring equipment through a network.
The device also comprises a battery module used for monitoring the electric quantity of the battery and protecting the battery from overcharge and overdischarge, and the battery module is connected with the singlechip.
The device also comprises an LED display module used for displaying the initial environment radiation intensity value, the real-time environment radiation intensity value and the number of times of the nuclear radiation source entering and exiting the radiation source equipment, and the LED display module is connected with the single chip microcomputer module.
The device also comprises a key module used for controlling the single chip microcomputer module so as to control the LED display module to display contents, and the key module is connected with the single chip microcomputer module.
As a further improvement of the invention, the remote real-time detection device of the nuclear radiation source equipment is a container with an open side, and the shell of the container is made of radiation-proof materials; the second nuclear radiation detection module, the single chip microcomputer module, the wireless communication module and the battery module are arranged on one side of the device, which is sealed inside the device, and the side of the device adopts a thickened radiation-proof material sealing device; the first nuclear radiation detection module is arranged on one side of an opening in the device, and the side of the device is sealed by a non-radiation-proof material baffle plate 1; the first nuclear radiation detection module 2 is isolated from other modules by adopting a radiation-proof material isolation plate 3.
The first nuclear radiation detection module is also provided with an anti-radiation auxiliary assembly, the anti-radiation assembly comprises an anti-radiation material baffle plate 4 which is a fan-shaped cylinder, the anti-radiation material baffle plate 4 is also coated with anti-radiation paint, and when the nuclear radiation source equipment is in a normal working state, the anti-radiation material baffle plate is arranged on one side of the first nuclear radiation detection module 2 and one side of the anti-radiation material isolation plate 3 and has no influence on nuclear radiation detection of the first nuclear radiation detection module 2; when the device starts an automatic protection program, the radiation protection material baffle 4 rotates to a preset angle and is placed between the first nuclear radiation detection module 2 and the non-radiation protection material baffle 1, and then the influence of nuclear radiation on the first detection module is isolated.
The nuclear radiation detection module is designed according to the geiger counter principle, and the core component of the nuclear radiation detection module is a geiger tube. The Geiger tube is designed according to the ionization property of ray to gas, and is characterized by that a metal tube whose two ends are closed by insulating material is filled with thin gas, and a metal wire electrode is mounted on the axis of the tube, and between the wall of the metal tube and the metal wire electrode a voltage slightly lower than the breakdown voltage of gas in the tube is added.
The nuclear radiation detection module adopts an M4011 Geiger tube, a tin oxide cathode is arranged in the tube, a coaxial cylindrical thin-wall structure pulse application type halogen tube is used for detecting gamma rays of 20 mR/h-120 mR/h and soft β rays of 100-1800 devariate/min.cm & lt 2 & gt at the temperature of a surrounding medium from-40 ℃ to 55 ℃, gas in the tube does not discharge in a normal state, when high-speed particles are injected into the tube, the energy of the particles enables the gas in the tube to be ionized and conductive, a rapid gas discharge phenomenon is generated between a filament and the tube wall, and a pulse current signal is output.
Referring to fig. 5, the single chip microcomputer module adopts a Mega2560 module, and is used for debugging and controlling the system in the whole nuclear radiation source equipment monitoring device. This embodiment uses a Mega2560 module for commissioning and controlling the overall system operation. Such as: receiving and calculating signals of the nuclear radiation module, reading and calculating GPS signals, controlling the GSM module, sending corresponding information to the GSM module and sending the information to the target server through the module.
Referring to fig. 6, the wireless communication GSM module selects a module based on a SIM868 chip as a main control chip. The SIM868 that this embodiment adopted is a high performance industrial grade four-frequency GSM/GPRS/GPS/bluetooth module, and the interface is abundant, and the function is perfect, job stabilization, and anti-interference is strong, and the peripheral circuit integrated level is high, and the size is small and exquisite. The method is particularly suitable for various fields needing voice/short message/GPRS data service/GPS/Bluetooth, such as: intelligent home, intelligent centralized meter reading system, remote monitoring, public transportation, shared bicycle, etc.
Compared with the prior art have the advantages that:
1. the invention discloses a remote real-time monitoring method and a device of nuclear radiation source equipment, and is characterized in that a nuclear radiation source equipment monitoring device is arranged on a nuclear radiation source equipment monitoring field, the nuclear radiation source equipment monitoring device and a nuclear radiation source equipment shell are bound and followed one by one, and the nuclear radiation amount of the field is monitored in real time through a nuclear radiation detection module in the arranged device, wherein a first nuclear radiation detection module is a low-intensity nuclear radiation detection module with higher sensitivity, and a second nuclear radiation detection module is arranged in a high-intensity nuclear radiation detection module made of radiation-proof materials; the nuclear radiation detection module has a radiation protection function, a nuclear radiation detection module in work detects the radiation quantity, amplifies and shapes a detection signal of nuclear radiation rays, converts the detection signal into a level signal acceptable by a single chip microcomputer and then transmits the level signal to the single chip microcomputer module, the single chip microcomputer module judges the nuclear radiation quantity, and the single chip microcomputer module can automatically switch a first nuclear radiation detection module and a second nuclear radiation detection module according to the peripheral nuclear radiation quantity or a nuclear radiation source device out-of-box or back-of-box operation signal, so that the nuclear radiation detection device is prevented from being damaged by nuclear radiation when the nuclear radiation source device is out-of-box or back-of-box operated;
2. the invention relates to a method and a device for remotely monitoring nuclear radiation source equipment in real time, wherein a singlechip module in a monitoring device of the nuclear radiation source equipment is used as a main control module of the device, the singlechip module judges the nuclear radiation intensity and counts the times of the nuclear radiation source entering and exiting the nuclear radiation source equipment, and local off-site monitoring equipment and remote monitoring equipment can judge the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of the singlechip: when the singlechip records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source equipment is in the equipment; when the count is N +1, the nuclear radiation source equipment is in a working state, and the nuclear radiation source is pushed to the outside from the inside of the equipment; when the count is N +2, the nuclear radiation source device is in a working state, and the nuclear radiation source is positioned outside the device; when the count is N +3, the nuclear radiation source equipment is in a working state, the nuclear radiation source is positioned outside the equipment and returns to the equipment from the outside of the equipment; when the count is N +4, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source is returned to be positioned inside the equipment;
3. the invention relates to a remote real-time monitoring method and a device thereof for nuclear radiation source equipment.A local off-site monitoring device and a remote monitoring device can send a request signal to a monitoring device of the nuclear radiation source equipment;
4. the invention discloses a remote real-time monitoring method and a device of nuclear radiation source equipment.A singlechip module in the nuclear radiation source equipment monitoring device can also transmit an initial environment radiation intensity value, a real-time environment radiation intensity value and an LED display module of the nuclear radiation source access frequency to the LED display module in the device after receiving and processing various information, display the initial environment radiation intensity value, the real-time environment radiation intensity value and the nuclear radiation source access frequency on the device in real time through an LED display screen, and can also generate a control signal to the singlechip module through a key module so as to control the display content of the LED display module.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A remote real-time monitoring method for a nuclear radiation source device is characterized by comprising the following steps:
(1) setting a remote monitoring device and an onboard nuclear radiation source device monitoring device bound and followed with a nuclear radiation source device shell, setting the device on a monitoring site of the nuclear radiation source device bound with the device, and carrying out uninterrupted monitoring on the working state of the nuclear radiation source device and the position of a nuclear radiation source; the nuclear radiation source equipment monitoring device is internally provided with a wireless communication module which is connected with corresponding local off-site monitoring equipment and remote monitoring equipment through a network;
(2) a first nuclear radiation detection module and a second nuclear radiation detection module which work alternately are arranged in the nuclear radiation source equipment monitoring device; the first nuclear radiation detection module is a low-intensity nuclear radiation detection module with higher sensitivity, and the second nuclear radiation detection module is a high-intensity nuclear radiation detection module placed in a radiation-proof material;
(3) the single chip microcomputer module is arranged in the nuclear radiation source equipment monitoring device and controls the first nuclear radiation detection module and the second nuclear radiation detection module; when the first nuclear radiation detection module or the second nuclear radiation detection module is in a working state, the working nuclear radiation detection module detects the radiation quantity of a radiation source, amplifies and shapes the intensity detection signal of the nuclear radiation ray, converts the intensity detection signal into a level signal acceptable by a single chip microcomputer and transmits the level signal to the single chip microcomputer module, and the single chip microcomputer module judges the intensity of the nuclear radiation quantity and counts the times of the nuclear radiation source entering and exiting the radiation source equipment;
(4) the method comprises the steps that a nuclear radiation source device monitoring device is powered on and initialized, the nuclear radiation source device is in a non-working state at the moment, a first nuclear radiation detection module is used for detecting and monitoring the nuclear radiation source device and the environment radiation quantity, and the initial environment radiation quantity intensity value is input into a single chip microcomputer module; the singlechip module records the time value of the nuclear radiation source entering and exiting the radiation source equipment as N, N which is a natural number;
(5) when the intensity values of the nuclear radiation source equipment and the environmental radiation amount detected by the first nuclear radiation detection module are in a set low-intensity radiation value range, the first nuclear radiation detection module is kept in an electrified monitoring state under the control of the single chip microcomputer, the radiation source equipment and the environmental radiation amount are monitored continuously, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N +0 by the single chip microcomputer; transmitting the collected radiation intensity value signals and the numerical value of the access count to local off-site monitoring equipment or remote monitoring equipment;
(6) when the nuclear radiation source equipment and the environment radiation amount detected by the first nuclear radiation detection module exceed the threshold value of the high point of the low-intensity radiation value range, the first nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the second nuclear radiation detection module is powered on and started and keeps an uninterrupted monitoring state, the second nuclear radiation detection module detects that the source equipment in a set high-intensity radiation value range (such as 1-400 millisiever) is uninterruptedly monitored, and the number of times of the nuclear radiation source entering and exiting the source equipment is recorded as N + 1; transmitting the collected radiation intensity value signals and the number of times of entering and exiting equipment to local off-site monitoring equipment or remote monitoring equipment;
(7) when the intensity values of the nuclear radiation source equipment and the environment radiation quantity detected by the second nuclear radiation detection module are within the set low-energy radiation value range again, the second nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the first nuclear radiation detection module is started and keeps a power-on monitoring state, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N + 2; transmitting the collected radiation intensity value signals to local off-site monitoring equipment or remote monitoring equipment;
(8) when the nuclear radiation source equipment and the environment radiation amount detected by the first nuclear radiation detection module exceed the threshold value of the high point of the low-intensity radiation value range again, the first nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the second nuclear radiation detection module is powered on and started and keeps an uninterrupted monitoring state, the second nuclear radiation detection module detects that the source equipment in a set high-intensity radiation value range (such as 1-400 millisiever) is uninterruptedly monitored, and the number of times of the nuclear radiation source entering and exiting the source equipment is recorded as N + 3; transmitting the collected radiation intensity value signals and the number of times of entering and exiting equipment to local off-site monitoring equipment or remote monitoring equipment;
(9) when the intensity values of the nuclear radiation source equipment and the environment radiation quantity detected by the second nuclear radiation detection module are within the set low-energy radiation value range again, the second nuclear radiation detection module is powered off and stops working under the control of the single chip microcomputer, meanwhile, the first nuclear radiation detection module is started and keeps a power-on monitoring state, and the number of times of the nuclear radiation source entering and exiting the radiation source equipment is recorded as N + 4; transmitting the collected radiation intensity value signals to local field monitoring equipment or remote monitoring equipment;
(10) repeating the steps (4) to (9), and implementing uninterrupted monitoring on the working state of the nuclear radiation source equipment and the position of the nuclear radiation source; the local off-site monitoring equipment and the remote monitoring equipment can judge the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the counting value of the single chip microcomputer: when the singlechip records the number of times of the nuclear radiation source entering and exiting the radiation source equipment as N, the nuclear radiation source equipment is in a non-working state, and the nuclear radiation source equipment is in the equipment; when the count is N +1, the nuclear radiation source equipment is in a working state, and the nuclear radiation source is pushed to the outside from the inside of the equipment; when the count is N +2, the nuclear radiation source device is in a working state, and the nuclear radiation source is positioned outside the device; when the count is N +3, the nuclear radiation source equipment is in a working state, the nuclear radiation source is positioned outside the equipment and returns to the equipment from the outside of the equipment; when the count is N +4, the nuclear radiation source device is in a non-operating state, the nuclear radiation source has returned to be inside the device.
2. The method for remote real-time monitoring of a nuclear radiation source device according to claim 1, wherein said step (4) further comprises the steps of:
(41) the nuclear radiation source equipment monitoring device is also provided with a camera module, when the nuclear radiation source equipment monitoring device is powered on and initialized, a singlechip module in the nuclear radiation source equipment monitoring device starts the camera module, the camera module is adopted to carry out all-weather real-time monitoring on a radiation source monitoring site, and the video of the site is stored; the local off-site monitoring equipment and the remote monitoring equipment can send request signals to the nuclear radiation source equipment monitoring device, and when the single chip microcomputer module in the device receives the request signals, the real-time monitoring camera information in the camera module or the stored monitoring camera information is sent to the local off-site monitoring equipment and the remote monitoring equipment through the wireless communication module, so that the remote real-time monitoring of the nuclear radiation source equipment monitoring site is realized.
3. The method for remote real-time monitoring of a nuclear radiation source device according to claim 2, wherein said step (10) further comprises the steps of:
(101) the local monitoring equipment can receive information transmitted by a corresponding nuclear radiation source equipment monitoring device, and judges the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of a single chip microcomputer module of the nuclear radiation source equipment monitoring device in the information.
4. The method for remote real-time monitoring of a nuclear radiation source device according to claim 3, wherein said step (10) further comprises the steps of:
(102) the remote monitoring equipment can receive information transmitted by one or more corresponding nuclear radiation source equipment monitoring devices, can select the information transmitted by any one of the nuclear radiation source equipment monitoring devices to judge, and judges the working state of the nuclear radiation source equipment and the position of the nuclear radiation source according to the count value of the single chip microcomputer module in the nuclear radiation source equipment monitoring device.
5. A remote real-time detection device for nuclear radiation source equipment for implementing the method of any one of claims 1 to 4, which comprises a single chip microcomputer module for realizing a master control function, a first nuclear radiation detection module, a second nuclear radiation detection module, a wireless communication module and a camera module, wherein the first nuclear radiation detection module, the second nuclear radiation detection module, the wireless communication module and the camera module can work alternately; the first nuclear radiation detection module is a low-intensity nuclear radiation detection module with high sensitivity, the second nuclear radiation detection module is a high-intensity nuclear radiation detection module placed in a radiation-proof material, and the wireless communication module is connected with corresponding local off-site monitoring equipment and remote monitoring equipment through a network.
6. The remote real-time detection device for nuclear radiation source equipment according to claim 5, further comprising a battery module for monitoring the amount of charge of the battery and protecting the battery from overcharge and overdischarge, wherein the battery module is connected with the single chip microcomputer.
7. The remote real-time detection device for the nuclear radiation source equipment according to claim 5, further comprising an LED display module for displaying the initial environmental radiation intensity value, the real-time environmental radiation intensity value and the number of times the nuclear radiation source enters or exits the radiation source equipment, wherein the LED display module is connected with the single chip microcomputer module.
8. The remote real-time detection device of nuclear radiation source equipment according to claim 7, further comprising a key module for controlling the single chip module so as to control the LED display module to display contents, wherein the key module is connected with the single chip module.
9. The remote real-time detection device for the nuclear radiation source equipment according to claim 5, wherein the remote real-time detection device for the nuclear radiation source equipment is a container with an open side, and a shell of the container is made of a radiation-proof material; the second nuclear radiation detection module, the single chip microcomputer module, the wireless communication module and the battery module are arranged on one side of the device, which is sealed inside the device, and the side of the device adopts a thickened radiation-proof material sealing device; the first nuclear radiation detection module is arranged on one side of an opening in the device, and the side of the device is sealed by a non-radiation-proof material baffle (1); the first nuclear radiation detection module (2) is isolated from other modules by adopting a radiation-proof material isolation plate (3).
10. The remote real-time detection device for the nuclear radiation source equipment according to claim 5, wherein the first nuclear radiation detection module is also provided with an auxiliary radiation protection component, the radiation protection component comprises a radiation protection material baffle plate (4) which is a fan-shaped cylinder, the radiation protection material baffle plate (4) is further coated with a radiation protection coating, and when the nuclear radiation source equipment is in a normal working state, the radiation protection material baffle plate is arranged on one side of the first nuclear radiation detection module (2) and the radiation protection material isolation plate (3) and has no influence on nuclear radiation detection of the first nuclear radiation detection module (2); when the device starts an automatic protection program, the radiation protection material baffle (4) rotates to a preset angle and is placed between the first nuclear radiation detection module (2) and the non-radiation protection material baffle (1), and then the influence of nuclear radiation on the first detection module is isolated.
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