A method and a system for monitoring the operating conditions of a radiological device

Abstract

The application discloses a kind of ray device working condition monitoring method, comprising: detecting the environmental radiation dose rate of ray device workplace;Detect the working current and / or working voltage of ray device;Detect the start time and stop time of the working current, and / or the start time and stop time of working voltage;Detect the state signal of shielding door opening and closing;Detect the opening time when the shielding door opens and the closing time when it closes;According to the environmental radiation dose rate, working current and the start time and stop time of the working current, and / or working voltage and the start time and stop time of the working voltage, shielding door opening and closing state signal, shielding door opening time when it opens and closing time when it closes, it is judged whether the working condition of the ray device is abnormal, and alarm when abnormal.The application also discloses a kind of ray device working condition monitoring system.The application can be used to monitor the working condition of ray device, and safety is good.

Description

Technical Field

[0001] This invention relates to the monitoring of radiation devices, and more specifically to a method and system for monitoring the operating conditions of radiation devices. Background Technology

[0002] X-ray devices are widely used in industries such as manufacturing, agriculture, medicine, and scientific research, and are typical representatives of strategic emerging industries and new productive forces. The radiation emitted by these devices has two sides: while creating enormous economic and social benefits, it also increases radiation safety risks. In radiation safety accident analysis, human error is the primary factor. Multiple studies and statistical data show that human error accounts for 60%-84.64% of nuclear and radiation accidents, far exceeding other causes such as equipment failure. Therefore, the safety management of radiation devices urgently needs to shift from "equipment reliability" to "technical system reliability," eliminating the role of human factors in radiation safety assurance and transforming from human-based prevention to technology-based prevention.

[0003] The number of radiation devices used in my country has exceeded 350,000 units, with workplaces scattered across the country. Current radiation safety supervision relies on regular manual on-site inspections (once a year / quarter / month), which cannot capture instantaneous risks such as "protective door interlock failure, illegal operation, and excessive dosage" in real time. Furthermore, there is a severe shortage of regulatory personnel. During the use of radiation devices, there are instances of deliberate malfunctions of protective door interlocks to improve production efficiency, leading to radiation accidents that cause injury or disability. In addition, retrospective analysis of accident causes lacks effective data support. This reactive and manpower-intensive regulatory approach is not only inefficient and narrow in coverage, but also ill-suited to the rapidly evolving needs of new technologies and business models.

[0004] The most common and frequent risks in the operation of radiation devices are concentrated in the use and management of protective doors, specifically manifested as follows: 1. Beam emitted when the protective door is not closed: This is caused by operator negligence or door interlock failure, resulting in the radiation device emitting beams when the protective door is not fully closed.

[0005] 2. Damaged or improperly closed protective doors: Old computer room doors are deformed and sealing strips are aging, affecting the shielding effect.

[0006] 3. No automatic door closing device or linkage failure: Some places still rely on manual door closing, which can easily lead to risks due to forgetting or improper operation.

[0007] Chinese patent applications CN207228946U and CN107420008 A both propose installing a radiation sensor module on the protective door to measure whether a radiation device is generating radiation. The photoelectric sensor module can determine if the door is properly closed. If radiation is detected but the door is not closed, an alarm is triggered, and a motor module automatically closes the door. This prevents radiation leakage caused by human error leading to the protective door not being properly closed while the equipment is operating inside the radiation room. For ordinary diagnostic radiation devices, this can greatly improve radiation safety under normal circumstances. However, when the radiation sensor module malfunctions, there is no other usable safety information to rely on, and the safety protection effect is not enhanced. But for radiation devices with mazes, such as radiotherapy devices and irradiation devices, due to the multiple shielding effects of the maze, there are situations where the radiation device is generating radiation but the radiation sensor module cannot detect it. In this case, false alarms will occur, and the system's safety protection function will fail.

[0008] In 2018, a radiation accident occurred at a company in Tianjin where the cargo passage door and protective door of an irradiation accelerator were not closed, resulting in two personnel entering the machine room and suffering severe irradiation injuries. The accelerator involved was a high-frequency, high-voltage accelerator, a widely used type in radiation processing. This type of electron accelerator typically has a total current of approximately 0.2-0.3 mA in its unloaded state (operating at high voltage, electron gun not activated). The electron gun filament is at the same potential as the accelerator's highest voltage. Even without applied voltage, electrons can escape from the filament surface under the influence of the high-voltage electric field, or discharge from the internal structural surfaces, entering the acceleration field to gain energy. Furthermore, corona discharge may occur during the high-voltage generator's operation of the high voltage or beam, and residual gas ionization can also generate various charged particles, resulting in a non-zero unloaded total current, i.e., the presence of "dark current." In 2021, at another company in Tianjin, personnel entered the accelerator room to perform cable operations during the high-voltage activation and beam deactivation process. The "dark current" generated by the accelerator led to a radiation accident in which two people suffered radiation damage due to excessive electron beam exposure. Both accidents in Tianjin occurred in the industrial irradiation field and were directly related to insufficient safety awareness among operators and the failure of equipment safety interlock devices. Relying solely on radiation dose collection modules is susceptible to shielding interference, and this single source of information is insufficient to address the challenges of judging complex operating conditions, easily leading to misjudgments and rendering the safety protection function of the operating condition monitoring system ineffective.

[0009] Different irradiated materials have varying properties, requiring strict control of irradiation dosage. Heating is an inevitable result of the irradiation process; for example, heat-sensitive products (such as vaccines and biological products) may denature above 40°C; polymeric materials (such as polyethylene) will soften above their glass transition temperature (Tg). Improper operation or malfunction of the irradiation control system, especially when handling flammable materials (such as certain solvents or powders), poses a risk of ignition under extreme conditions (such as electrostatic accumulation combined with a high-energy electron beam). Historically, numerous irradiation accidents, caused by prolonged irradiation, have resulted in fires, causing significant social impact and severely hindering the development of industries related to nuclear technology utilization. Therefore, monitoring the operating time of radiation accelerators is of paramount safety, economic, and social benefit.

[0010] Clearly, existing technologies that rely solely on detecting radiation from X-ray devices and checking whether protective doors are open are insufficient to prevent accidents, and safety remains inadequate. Summary of the Invention

[0011] To address the technical problem that existing technologies, which rely solely on detecting radiation from radiation devices and checking whether protective doors are open, cannot effectively prevent accidents and still lack safety, this invention provides a method and system for monitoring the operating conditions of radiation devices.

[0012] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is to design a method for monitoring the operating conditions of a radiation device, comprising: Detecting the environmental radiation dose rate in workplaces equipped with radiation devices; Detect the operating current and / or operating voltage of the radiation device; The start and stop times of the operating current and / or the start and stop times of the operating voltage are detected. The status signals of the opening and closing of the protective doors in the workplace where the radiation device is installed are detected; Detect the opening time and closing time of the protective door when it is opened; The system determines whether the radiation device is operating abnormally based on the ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time when the protective door is open and the closing time when it is closed, and issues an abnormal alarm signal when an abnormality occurs.

[0013] When the protective door is opened, the radiation device is deemed to be in abnormal operation if any of the following conditions are met: The operating current exceeds the set current threshold; The operating voltage exceeds the set voltage threshold; The ambient radiation dose rate exceeds the set radiation dose rate threshold; When the protective door is opened, the operating current and operating voltage are both zero, and the ambient radiation dose rate is lower than the set radiation dose rate threshold, the radiation device is determined to be in normal working condition and is in a shutdown or standby state.

[0014] When the protective door is closed, if the time interval between the start and stop times of the operating current or operating voltage exceeds a set time threshold, the operating condition of the radiation device is determined to be abnormal.

[0015] If the closing time of the protective door is delayed beyond the start time of the working current or the start time of the working voltage, the operation of the radiation device is determined to be abnormal. If the opening time of the protective door is earlier than the stopping time of the working current or the stopping time of the working voltage, the operation of the radiation device is determined to be abnormal.

[0016] The method for monitoring the operating condition of the radiation device also includes: The ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time and closing time of the protective door when it is open, whether the operating condition of the radiation device is abnormal, and the alarm signal issued when there is an abnormality are transmitted to the monitoring platform.

[0017] The present invention also provides a radiation device condition monitoring system, comprising: A radiation dose rate detection device, used to detect the environmental radiation dose rate in the workplace where radiation devices are installed; An electrical signal detection device that detects the operating current and / or operating voltage of the radiation device; A first timing device detects the start and stop times of the operating current and / or the start and stop times of the operating voltage; A protective door opening and closing detection device, which detects the opening and closing status signals of protective doors in the workplace of radiation devices; The second timing device detects the opening time when the protective door is opened and the closing time when it is closed. A control device, connected to the radiation dose rate detection device, electrical signal detection device, first timing device, protective door opening / closing detection device, and second timing device, acquires and stores the ambient radiation dose rate, operating current and its start and stop times, and / or operating voltage and its start and stop times, protective door opening and closing status signals, and the opening and closing times of the protective door. The control device determines whether the radiation device is operating abnormally based on the ambient radiation dose rate, operating current and its start and stop times, and / or operating voltage and its start and stop times, protective door opening and closing status signals, and the opening and closing times of the protective door, and issues an alarm signal when an abnormality is detected.

[0018] When the protective door is opened, the radiation device is deemed to be in abnormal operation if any of the following conditions are met: The operating current exceeds the set current threshold; The operating voltage exceeds the set voltage threshold; The ambient radiation dose rate exceeds the set radiation dose rate threshold; When the protective door is opened, the operating current and operating voltage are both zero, and the ambient radiation dose rate is lower than the set radiation dose rate threshold, the radiation device is determined to be in normal working condition and is in a shutdown or standby state.

[0019] When the protective door is closed, if the time interval between the start and stop times of the operating current or operating voltage exceeds a set time threshold, the operating condition of the radiation device is determined to be abnormal.

[0020] If the closing time of the protective door is delayed beyond the start time of the working current or the start time of the working voltage, the operation of the radiation device is determined to be abnormal. If the opening time of the protective door is earlier than the stopping time of the working current or the stopping time of the working voltage, the operation of the radiation device is determined to be abnormal.

[0021] The radiation device operating condition monitoring system also includes: A monitoring platform is connected to the control device, which transmits the ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time and closing time of the protective door when it is open, whether the operating condition of the radiation device is abnormal, and the alarm signal issued when there is an abnormality to the monitoring platform.

[0022] This invention detects the ambient radiation dose rate at the workplace of the radiation device; detects the operating current and / or operating voltage of the radiation device; detects the start and stop times of the operating current and / or operating voltage; detects the opening and closing status signals of the protective door at the workplace of the radiation device; detects the opening time and closing time of the protective door when it is open; and determines whether the operating condition of the radiation device is abnormal based on the ambient radiation dose rate, the operating current and its start and stop times, and / or the operating voltage and its start and stop times, the opening and closing status signals of the protective door, and the opening and closing times of the protective door when it is open, and issues an abnormality alarm signal when an abnormality occurs. Because the determination process adds the operating current and its start and stop times, and / or the operating voltage and its start and stop times, and the opening and closing times of the protective door, it can effectively determine whether the radiation device has an operating current, the operating time of the radiation device, and when the protective door is opened and closed, thereby effectively avoiding the hazards caused by dark current and excessive irradiation time, resulting in better safety. Attached Figure Description

[0023] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein: Figure 1 This is a schematic diagram of the radiation device operating condition monitoring method of the present invention; Figure 2 This is a schematic diagram of the radiation device condition monitoring system of the present invention. Detailed Implementation

[0024] The specific embodiments of the present invention are further described below with reference to the accompanying drawings: Please see Figure 1 The method for monitoring the operating condition of a radiation device according to the present invention includes: 1. Detect the environmental radiation dose rate in the workplace of the radiation device.

[0025] X-ray devices are typically housed in enclosed operating rooms. Radiation meters are installed in the operating room, the workplace of the X-ray device, to monitor the ambient radiation dose rate. Specifically, an X-ray gamma radiation dose rate detector can be used to detect the ambient radiation dose rate in the X-ray device's workplace. Because the X-ray device emits radiation during operation, detecting the ambient radiation dose rate allows us to understand the device's operational status.

[0026] Different radiation dose rate detection devices can be matched to the X-ray characteristics of different X-ray devices. A common type of radiation dose rate detection device is the ordinary Geiger tube-based radiation dose detection device. For digital X-ray imaging or other pulsed X-ray detection scenarios, radiation dose rate detection devices based on scintillator detectors such as yttrium silicate and cesium iodide crystals are used, achieving a radiation dose detection response time at the nanosecond level; alternatively, integrated circuit-based radiation detection chips can be used to achieve X-γ radiation dose rate detection.

[0027] 2. Detect the operating current and / or operating voltage of the X-ray device.

[0028] The operating current signal of the X-ray device can be acquired using non-invasive methods such as open-type current transformers, electromagnetic induction sensors, or fiber optic current sensors. The operating voltage signal of the X-ray device can be acquired using non-invasive methods such as voltage transformers. By detecting the operating current and / or operating voltage of the X-ray device, it can be determined whether the device is operating normally or whether dark current is present.

[0029] 3. Detect the start and stop times of the operating current and / or the start and stop times of the operating voltage.

[0030] The start and stop times of detecting the working current and voltage can be achieved using a timer. When the working current or voltage is turned on, the current time is recorded as the start time, and the timing begins. When the working current or voltage disappears, the current time is recorded as the stop time, and the timing stops.

[0031] By detecting the start and stop times, it is possible to determine when the radiation device starts working, when it stops working, and the duration of its operation.

[0032] 4. Detect the opening and closing status signals of the protective doors in the workplace of the radiation device.

[0033] Hall effect sensors or mechanical microswitches can be used to collect data on the opening and closing of the protective door.

[0034] 5. Detect the opening time and closing time of the protective door when it is opened.

[0035] The opening and closing times of the protective door can also be implemented using a timer. When the protective door opens, the timer is triggered and the current time is recorded as the opening time. When the protective door closes, the timer is also triggered and the current time is recorded as the closing time.

[0036] 6. Determine whether the operating condition of the radiation device is abnormal based on the ambient radiation dose rate, the operating current and the start and stop times of the operating current, and / or the operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time when the protective door is open and the closing time when it is closed, and issue an abnormal alarm signal when there is an abnormality.

[0037] An industrial-grade tablet PC is used, equipped with monitoring software to collect, analyze, and make judgments based on data. Alarms can be triggered by sound or light. For example, the indicator light turns red when the X-ray device malfunctions, and green when it is functioning normally. This invention does not limit the specific alarm method; it only needs to alert users or supervisors.

[0038] Because the judgment process incorporates the working current and its start and stop times, and / or the working voltage and its start and stop times, as well as the opening and closing times of the protective door, it can effectively determine whether the radiation device has a working current, the working time of the radiation device, and when the protective door is opened and closed, thereby effectively avoiding the hazards caused by dark current and excessive irradiation time, resulting in better safety.

[0039] Specifically, if the protective door is opened and one of the following conditions is met, the radiation device is deemed to be in abnormal operation: The operating current exceeds the set current threshold; The operating voltage exceeds the set voltage threshold; The environmental radiation dose rate exceeds the set radiation dose rate threshold.

[0040] If the operating current exceeds the set current threshold, the operating voltage exceeds the set voltage threshold, or the ambient radiation dose rate exceeds the set radiation dose rate threshold, it indicates that the radiation device is in a state that may generate radiation. If the protective door is opened at this time, there is a very high danger. Therefore, the operating condition of the radiation device is determined to be abnormal.

[0041] When the protective door is opened, the operating current and operating voltage are both zero, and the ambient radiation dose rate is lower than the set radiation dose rate threshold, the radiation device is determined to be operating normally and is in a shutdown or standby state. At this time, no alarm signal is issued.

[0042] When the protective door is closed, the operating current exceeds the set current threshold or the operating voltage exceeds the set voltage threshold, and the ambient radiation dose rate exceeds the set radiation dose rate threshold, the radiation device is determined to be in normal working condition and is in normal working state.

[0043] When the protective door is closed, if the time interval between the start and stop times of the operating current or voltage exceeds a set time threshold, the operation of the radiation device is determined to be abnormal. When the time interval between the start and stop times exceeds the set time threshold, it indicates that the radiation device has been operating for too long, which may pose a danger; therefore, the operation of the radiation device is determined to be abnormal.

[0044] If the closing time of the protective door is delayed beyond the start time of the operating current or the start time of the operating voltage, the radiation device is deemed to be in abnormal operation. Since the closing time is delayed beyond the start time, it indicates that the radiation device has already started operating before the protective door is closed. In this case, there is a risk of radiation leakage; therefore, the radiation device is deemed to be in abnormal operation.

[0045] If the opening time of the protective door is earlier than the stopping time of the operating current or the stopping time of the operating voltage, the radiation device is deemed to be in abnormal condition. Since the protective door opens before the stopping time, it indicates that the radiation device has not stopped operating before the protective door is opened, which also poses a risk of radiation leakage. Therefore, the radiation device is deemed to be in abnormal condition.

[0046] 7. Transmit the ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time and closing time of the protective door when it is open, whether the operating condition of the radiation device is abnormal, and the alarm signal issued when it is abnormal to the monitoring platform.

[0047] By sending data to the monitoring platform, radiation devices in various locations can be centrally monitored and managed in a unified manner. Furthermore, the monitoring platform can aggregate and analyze the data, summarize the operational status of each radiation device, and take timely and appropriate actions to achieve remote control.

[0048] Please see Figure 2 The radiation device operation monitoring system of this invention includes a radiation dose detection device 1, an electrical signal detection device 2, a first timing device 3, a protective door opening / closing detection device 4, a second timing device 5, a control device 6, and a monitoring platform 7. Wherein: Radiation dose rate detection device 1 detects the environmental radiation dose rate in the workplace of the radiation device.

[0049] X-ray devices are typically housed in enclosed operating rooms. Radiation meters are installed in the operating room, the workplace of the X-ray device, to monitor the ambient radiation dose rate. Specifically, an X-ray gamma radiation dose rate detector can be used to detect the ambient radiation dose rate in the X-ray device's workplace. Because the X-ray device emits radiation during operation, detecting the ambient radiation dose rate allows us to understand the device's operational status.

[0050] Different radiation dose rate detection devices can be matched to the X-ray characteristics of different X-ray devices. A common type of radiation dose rate detection device is the ordinary Geiger tube-based radiation dose detection device. For digital X-ray imaging or other pulsed X-ray detection scenarios, radiation dose rate detection devices based on scintillator detectors such as yttrium silicate and cesium iodide crystals are used, achieving a radiation dose detection response time at the nanosecond level; alternatively, integrated circuit-based radiation detection chips can be used to achieve X-γ radiation dose rate detection.

[0051] The electrical signal detection device 2 detects the operating current and / or operating voltage of the radiation device.

[0052] Open-type current transformers, electromagnetic induction sensors, or fiber optic current sensors can be used to collect the operating current signal of the radiation device. Voltage transformers can be used to obtain the operating voltage signal of the radiation device. By detecting the operating current and / or operating voltage of the radiation device, it can be determined whether the device is operating normally or whether dark current is present.

[0053] The first timing device 3 detects the start and stop times of the operating current and / or the start and stop times of the operating voltage.

[0054] The start and stop times of detecting the working current and voltage can be achieved using timers, etc. When the working current or voltage is turned on, the first timing device records the current time as the start time and starts timing. When the working current or voltage disappears, the first timing device records the current time as the stop time and stops timing.

[0055] By detecting the start and stop times, it is possible to determine when the radiation device starts working, when it stops working, and the duration of its operation.

[0056] The protective door opening and closing detection device 4 detects the opening and closing status signals of the protective doors in the workplace of the radiation device.

[0057] The protective door opening and closing detection device can be implemented using Hall effect sensors or mechanical micro switches, which collect the opening and closing of the protective door.

[0058] The second timing device 5 detects the opening time when the protective door is opened and the closing time when it is closed.

[0059] The opening and closing times of the protective door can also be implemented using a timer. When the protective door opens, the second timer is triggered and records the current time as the opening time. When the protective door closes, the second timer is also triggered and records the current time as the closing time.

[0060] The control device 6 is connected to the radiation dose rate detection device, the electrical signal detection device, the first timing device, the protective door opening and closing detection device, and the second timing device. It acquires and stores the ambient radiation dose rate, the operating current and the start and stop times of the operating current, and / or the operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time when the protective door is open, and the closing time when the protective door is closed. The control device determines whether the operating condition of the radiation device is abnormal based on the ambient radiation dose rate, the operating current and the start and stop times of the operating current, and / or the operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, and the opening time when the protective door is open and the closing time when the protective door is closed, and issues an alarm signal when an abnormality occurs.

[0061] The control device 6 uses an industrial-grade tablet PC equipped with monitoring software to collect, analyze, and make judgments based on data. Alarms can be triggered by sound or light. For example, the indicator light turns red when the X-ray device is malfunctioning, and green when it is functioning normally. This invention does not limit the specific alarm method; it only needs to alert users or supervisors.

[0062] Because the judgment process incorporates the working current and its start and stop times, and / or the working voltage and its start and stop times, as well as the opening and closing times of the protective door, it can effectively determine whether the radiation device has a working current, the working time of the radiation device, and when the protective door is opened and closed, thereby effectively avoiding the hazards caused by dark current and excessive irradiation time, resulting in better safety.

[0063] Specifically, if the protective door is opened and one of the following conditions is met, the radiation device is deemed to be in abnormal operation: The operating current exceeds the set current threshold; The operating voltage exceeds the set voltage threshold; The environmental radiation dose rate exceeds the set radiation dose rate threshold.

[0064] If the operating current exceeds the set current threshold, the operating voltage exceeds the set voltage threshold, or the ambient radiation dose rate exceeds the set radiation dose rate threshold, it indicates that the radiation device is in a state that may generate radiation. If the protective door is opened at this time, there is a very high danger. Therefore, the operating condition of the radiation device is determined to be abnormal.

[0065] When the protective door is opened, the operating current and operating voltage are both zero, and the ambient radiation dose rate is lower than the set radiation dose rate threshold, the radiation device is determined to be operating normally and is in a shutdown or standby state. At this time, no alarm signal is issued.

[0066] When the protective door is closed, the operating current exceeds the set current threshold or the operating voltage exceeds the set voltage threshold, and the ambient radiation dose rate exceeds the set radiation dose rate threshold, the radiation device is determined to be in normal working condition and is in normal working state.

[0067] When the protective door is closed, if the time interval between the start and stop times of the operating current or voltage exceeds a set time threshold, the operation of the radiation device is determined to be abnormal. When the time interval between the start and stop times exceeds the set time threshold, it indicates that the radiation device has been operating for too long, which may pose a danger; therefore, the operation of the radiation device is determined to be abnormal.

[0068] If the closing time of the protective door is delayed beyond the start time of the operating current or the start time of the operating voltage, the radiation device is deemed to be in abnormal operation. Since the closing time is delayed beyond the start time, it indicates that the radiation device has already started operating before the protective door is closed. In this case, there is a risk of radiation leakage; therefore, the radiation device is deemed to be in abnormal operation.

[0069] If the opening time of the protective door is earlier than the stopping time of the operating current or the stopping time of the operating voltage, the radiation device is deemed to be in abnormal condition. Since the protective door opens before the stopping time, it indicates that the radiation device has not stopped operating before the protective door is opened, which also poses a risk of radiation leakage. Therefore, the radiation device is deemed to be in abnormal condition.

[0070] The monitoring platform 7 is connected to the control device, and the control device transmits the ambient radiation dose rate, the operating current and the start and stop times of the operating current, and / or the operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time and closing time of the protective door when it is open, whether the operating condition of the radiation device is abnormal, and the alarm signal issued when it is abnormal to the monitoring platform.

[0071] By sending data to the monitoring platform, radiation devices in various locations can be centrally monitored and managed in a unified manner. Furthermore, the monitoring platform can aggregate and analyze the data, summarize the operational status of each radiation device, and take timely and appropriate actions to achieve remote control.

[0072] This invention establishes a logical judgment relationship of "radiation device status determination - protective door closure status assessment" through cross-verification of five types of monitoring data, achieving accurate and real-time monitoring of the radiation device's operating condition. Monitoring data is transmitted wirelessly, with one data point uploaded to the monitoring platform every minute. The monitoring system enables real-time monitoring, anomaly alarms, historical record keeping, and data export. This allows for comprehensive monitoring of the "door-machine" interlock status and radiation operation status, constructing a radiation safety supervision technology model of "monitoring-analysis-early warning-intervention." This comprehensively upgrades the traditional supervision model, which relies primarily on "human intervention" and "paper records," to a three-dimensional model of "technical prevention + human intervention + data prevention," greatly enhancing the ability to prevent radiation safety risks and truly shifting from post-event handling to pre-event prevention and in-event control.

[0073] This invention, through the deep integration of radiation device condition monitoring technology, data fusion technology, and wireless internet communication technology, constructs a "technology-based + human-based + data-based" monitoring model, which, compared to existing technologies, has the following significant advantages: 1. The operational condition monitoring system creates constant pressure through 24 / 7 monitoring, strongly constraining enterprises' violations and effectively forcing them to standardize operating procedures. This fundamentally avoids radiation accident risks caused by complacency, significantly reducing the incidence of violations compared to the early stages of project implementation. Simultaneously, the system's automatically identified violation clues precisely pinpoint core issues such as deficiencies in protective facilities and non-standard operations, helping nuclear technology users quickly identify safety weaknesses and prevent the expansion of risks due to long-term hazard existence. This further compels enterprises to upgrade facilities and optimize management, continuously improving intrinsic safety levels through a virtuous cycle of "monitoring feedback – rectification and optimization." Ultimately, through continuous monitoring data feedback, a closed-loop management model of "data self-inspection – problem rectification – effect verification" is gradually established, significantly enhancing radiation safety awareness and self-control capabilities.

[0074] 2. The detection system enables real-time and efficient risk warnings. For serious violations such as "protective doors not closed and beams leaking out" and "working beyond permitted hours," the system can trigger an alarm within one minute and complete preliminary verification within one hour. This completely reverses the passive situation of traditional supervision, which relies on "post-event discovery and reactive handling," and eliminates the occurrence of overdose radiation accidents at the source. Simultaneously, the massive amount of accumulated monitoring data can construct a "risk profile" of enterprises, accurately identifying high-risk areas, industries, and working hours, providing solid data support for differentiated supervision and improving the efficiency of regulatory resource investment by more than 60%.

[0075] 3. Quantifying the monitoring data of radiation devices provides direct technical basis for supervision and law enforcement, improves the efficiency of law enforcement response, and forms a closed-loop supervision of the whole chain of "monitoring-early warning-rectification". Based on the monitoring data, we can deeply explore the operating rules of different industries, provide scientific basis for the formulation of regulatory policies and the deployment of key enforcement points, and effectively promote the transformation of the supervision model from "experience-driven" to "data-driven", and build a radiation safety supervision model for radiation devices of "monitoring-analysis-early warning-intervention".

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for monitoring the operating condition of a radiation device, characterized in that... include: Detecting the environmental radiation dose rate in workplaces equipped with radiation devices; Detect the operating current and / or operating voltage of the radiation device; The start and stop times of the operating current and / or the start and stop times of the operating voltage are detected. The status signals of the opening and closing of the protective doors in the workplace where the radiation device is installed are detected; Detect the opening time and closing time of the protective door when it is opened; The system determines whether the radiation device is operating abnormally based on the ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time when the protective door is open and the closing time when it is closed, and issues an abnormal alarm signal when an abnormality occurs.

2. The method for monitoring the operating condition of a radiation device according to claim 1, characterized in that: When the protective door is opened, the radiation device is deemed to be in abnormal operation if any of the following conditions are met: The operating current exceeds the set current threshold; The operating voltage exceeds the set voltage threshold; The ambient radiation dose rate exceeds the set radiation dose rate threshold; When the protective door is opened, the operating current and operating voltage are both zero, and the ambient radiation dose rate is lower than the set radiation dose rate threshold, the radiation device is determined to be in normal working condition and is in a shutdown or standby state.

3. The method for monitoring the operating condition of a radiation device according to claim 1, characterized in that: When the protective door is closed, if the time interval between the start and stop times of the operating current or operating voltage exceeds a set time threshold, the operating condition of the radiation device is determined to be abnormal.

4. The method for monitoring the operating condition of a radiation device according to claim 1, characterized in that: If the closing time of the protective door is delayed beyond the start time of the working current or the start time of the working voltage, the operation of the radiation device is determined to be abnormal. If the opening time of the protective door is earlier than the stopping time of the working current or the stopping time of the working voltage, the operation of the radiation device is determined to be abnormal.

5. The method for monitoring the operating condition of a radiation device according to claim 3, characterized in that: The method for monitoring the operating condition of the radiation device also includes: The ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time and closing time of the protective door when it is open, whether the operating condition of the radiation device is abnormal, and the alarm signal issued when there is an abnormality are transmitted to the monitoring platform.

6. A radiation device operating condition monitoring system, characterized in that... include: A radiation dose rate detection device, used to detect the environmental radiation dose rate in the workplace where radiation devices are installed; An electrical signal detection device that detects the operating current and / or operating voltage of the radiation device; A first timing device detects the start and stop times of the operating current and / or the start and stop times of the operating voltage; A protective door opening and closing detection device, which detects the opening and closing status signals of protective doors in the workplace of radiation devices; The second timing device detects the opening time when the protective door is opened and the closing time when it is closed. A control device, connected to the radiation dose rate detection device, electrical signal detection device, first timing device, protective door opening / closing detection device, and second timing device, acquires and stores the ambient radiation dose rate, operating current and its start and stop times, and / or operating voltage and its start and stop times, protective door opening and closing status signals, and the opening and closing times of the protective door. The control device determines whether the radiation device is operating abnormally based on the ambient radiation dose rate, operating current and its start and stop times, and / or operating voltage and its start and stop times, protective door opening and closing status signals, and the opening and closing times of the protective door, and issues an alarm signal when an abnormality is detected.

7. The radiation device condition monitoring system according to claim 6, characterized in that: When the protective door is opened, the radiation device is deemed to be in abnormal operation if any of the following conditions are met: The operating current exceeds the set current threshold; The operating voltage exceeds the set voltage threshold; The ambient radiation dose rate exceeds the set radiation dose rate threshold; When the protective door is opened, the operating current and operating voltage are both zero, and the ambient radiation dose rate is lower than the set radiation dose rate threshold, the radiation device is determined to be in normal working condition and is in a shutdown or standby state.

8. The radiation device condition monitoring system according to claim 6, characterized in that: When the protective door is closed, if the time interval between the start and stop times of the operating current or operating voltage exceeds a set time threshold, the operating condition of the radiation device is determined to be abnormal.

9. The radiation device condition monitoring system according to claim 6, characterized in that: If the closing time of the protective door is delayed beyond the start time of the working current or the start time of the working voltage, the operation of the radiation device is determined to be abnormal. If the opening time of the protective door is earlier than the stopping time of the working current or the stopping time of the working voltage, the operation of the radiation device is determined to be abnormal.

10. The radiation device condition monitoring system according to claim 6, characterized in that: The radiation device operating condition monitoring system also includes: A monitoring platform is connected to the control device, which transmits the ambient radiation dose rate, operating current and the start and stop times of the operating current, and / or operating voltage and the start and stop times of the operating voltage, the status signals of the protective door opening and closing, the opening time and closing time of the protective door when it is open, whether the operating condition of the radiation device is abnormal, and the alarm signal issued when there is an abnormality to the monitoring platform.

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