Hot cathode X-ray tube negative high voltage power supply terminal safety monitoring method and system
By combining multi-parameter monitoring in both instantaneous and dynamic dimensions, and employing a multi-source data monitoring and analysis module, the problem of comprehensive monitoring of the operation effect of negative high-voltage power supply was solved, and the stable and safe operation of the X-ray tube was achieved.
Patent Information
- Application Number
- CN202511530203.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-01-20
AI Technical Summary
Existing technologies lack monitoring methods that can simultaneously analyze the operation of negative high-voltage power supplies from multiple dimensions and parameter perspectives in a dynamic and transient manner, making it difficult to guarantee the stability and safety of X-ray tubes.
By analyzing both instantaneous and dynamic dimensions, and combining multi-parameter monitoring, a multi-source data monitoring module, a data slicing analysis module, a dynamic series analysis module, and an operational status judgment module are used to achieve comprehensive safety monitoring of negative high-voltage power supply terminals.
It improves the comprehensiveness and accuracy of safety monitoring of negative high-voltage power supply terminals, ensures the stable operation of X-ray tubes, and generates operation trend and early warning signals.
Smart Images
Figure CN121364415A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of power terminal management, in particular to a hot cathode X-ray tube negative high-voltage power terminal safety monitoring method and system. BACKGROUND
[0002] The working principle of the X-ray tube is: accelerate electrons through an extremely high voltage, and then let these high-speed electrons bombard the metal target to generate X-rays. For the hot cathode X-ray tube, the electrons are emitted from the heated filament, that is, the cathode. In order to efficiently accelerate these electrons, there are two wiring modes: positive high-voltage mode and negative high-voltage mode. Most modern medical and industrial X-ray tubes adopt the "negative high-voltage" mode to obtain more secure and stable operation effect. Since the anode is the place where X-rays are generated by electron bombardment, it will generate a large amount of heat, which usually needs to be water-cooled or oil-cooled. Grounding the anode makes the cooling system not need to bear high-voltage insulation, which is simpler and safer in design and maintenance. At the same time, the load of the high-voltage power supply is the cathode, but the entire huge metal tube shell and the anode are at ground potential, which is convenient for shielding and installation, and the operation is more stable. Based on the above advantages of negative high-voltage, the hot cathode X-ray tube has a great dependence on the negative high-voltage power terminal, and the operation effect of the negative high-voltage power terminal directly affects the stability of the X-ray tube. Therefore, higher requirements are put forward for the operation monitoring system of the negative high-voltage power supply. A system is needed that can simultaneously deconstruct the operation effect of the power supply in dynamic, instantaneous state multiple dimensions and multiple parameter angles and realize the safe operation monitoring of the power terminal. In view of the above technical problems, the present application provides a solution. SUMMARY
[0003] The present application analyzes in two different dimensions of instantaneous dimension and dynamic dimension to obtain instantaneous operation results and dynamic operation results, and synchronously analyzes in different parameters to realize operation safety monitoring analysis in different parameter angles, thereby improving the comprehensiveness and accuracy of the negative high-voltage power terminal safety monitoring, solving the problem that the prior art lacks a technical solution that can simultaneously deconstruct the operation effect of the power supply in dynamic, instantaneous state multiple dimensions and multiple parameter angles, and proposing a hot cathode X-ray tube negative high-voltage power terminal safety monitoring method and system.
[0004] The purpose of the present application can be achieved by the following technical solutions: A hot cathode X-ray tube negative high-voltage power terminal safety monitoring method, comprising the following steps: Step 1: continuously monitor the operation process of the negative high-voltage power terminal, and return the monitoring results at regular intervals; Step two: the monitoring results returned at the same time are taken as a data set, and the data set is analyzed to obtain an instantaneous operation result; Step three: the data set is counted to dynamically construct the operation situation of the negative high-voltage power supply terminal; Step four: the operation situation construction result of the negative high-voltage power supply terminal is analyzed to obtain the operation trend and operation stability of the negative high-voltage power supply terminal; Step five: the operation trend and operation stability of the negative high-voltage power supply terminal are used for standard range judgment and quantitative analysis to obtain the operation safety early warning signal of the negative high-voltage power supply terminal.
[0005] A negative high-voltage power supply terminal safety monitoring system of a hot cathode X-ray tube comprises a multi-source data monitoring module, a data slice analysis module, a dynamic series analysis module, an operation trend judgment module and an early warning output module, the multi-source data monitoring module is used for monitoring the operation process of the negative high-voltage power supply terminal, obtaining real-time monitoring results, and recording the monitoring results returned at the same time as a data set, and sending the data set to the data slice analysis module; The data slice analysis module performs standardized quantitative judgment on multiple data in the data set each time the data set is obtained, obtains compliance situations of different data, combines the compliance situations, and obtains an instantaneous operation result; The dynamic series analysis module counts the obtained data set and creates a time axis, serializes each data category in the data set, obtains multiple dynamic change curves as dynamic construction results of the operation situation; The operation trend judgment module selects different dynamic change curves for tracking analysis to obtain an operation trend, an operation stability and finally generates an operation safety early warning signal.
[0006] As a preferred embodiment of the application, when the multi-source data monitoring module monitors the operation process of the negative high-voltage power supply terminal, the obtained monitoring results include power supply temperature, output power, current limit trigger frequency, voltage and current ripple results; The interval of the multi-source data monitoring module for obtaining the returned monitoring results is t seconds, when the multi-source data monitoring module obtains the power supply temperature, the real-time power supply temperature is obtained through a sensor, and the highest temperature in the real-time power supply temperature is selected as the monitoring result for return; The multi-source data monitoring module obtains the output power in a real-time manner, and the returned output power is the average value of the real-time power in a time length t; The current limit trigger frequency returned by the multi-source data monitoring module is the number of times that the negative high-voltage power supply terminal triggers the active current safety limit in a time length t; The multi-source data monitoring module records the voltage and current waveforms within a time length t in real time through filtering and oscillographic components, and compares the voltage waveform and the current waveform with the voltage waveform and the current waveform in the ideal state respectively, obtains the difference between the voltage waveform and the current waveform and the ideal state waveform according to the comparison result, and records the voltage and current ripple results.
[0007] As a preferred embodiment of the application, the multi-source data monitoring module obtains the difference between the voltage waveform, the current waveform and the ideal state waveform in the following manner: The multi-source data monitoring module superimposes the voltage waveform, the current waveform and the voltage waveform and the current waveform in the ideal state into the same proportional coordinate system, records the area between the voltage waveform and the current waveform and the horizontal axis as the actual characteristic quantity, records the area between the voltage waveform and the current waveform in the ideal state and the horizontal axis as the ideal characteristic quantity, calculates the difference between the actual characteristic quantity and the ideal characteristic quantity, and then calculates the ratio of the absolute value of the difference to the actual characteristic quantity to obtain the difference between the voltage waveform, the current waveform and the ideal state waveform.
[0008] As a preferred embodiment of the application, after the data slicing analysis module obtains the data group, it compares the power supply temperature in the data group with the set working temperature range to determine whether the power supply temperature is too high or normal; The data slicing analysis module calculates the output power in the data group with the set power to obtain the power difference, calculates the ratio of the power difference to the set power to obtain the power deviation, and determines whether the power deviation is too large or normal; The data slicing analysis module compares the current limit trigger times in the data group with the times threshold to determine whether the current limit trigger times are too high or normal; The data slicing analysis module compares the voltage and current ripple results in the data group with the set threshold to determine whether the ripple is too large or normal; The data slicing analysis module counts the number of signals with the power supply temperature being too high, the power deviation being too large, the current limit trigger times being too high or the ripple being too large, and generates the instantaneous operation result according to the counting result.
[0009] As a preferred embodiment of the application, after the dynamic series analysis module obtains the data group, it counts the same type of data in each obtained data group and records them in the form of curves to obtain the power supply temperature curve, the output power curve, the limit trigger curve and the ripple variation curve as the dynamic construction result of the operation condition.
[0010] As a preferred embodiment of the present application, the operation situation judgment module selects the power supply temperature curve, and marks the points exceeding the set working temperature range in the power supply temperature curve as exceeding points, and counts the occurrence proportion and the maximum continuous occurrence number of the exceeding points; The operation situation judgment module selects the output power curve, marks the points with the power deviating from the set power too much in the output power curve as marked points, and counts the occurrence proportion, the maximum deviation value and the continuous deviation cumulative amount of the marked points; The operation situation judgment module selects the limit trigger curve, marks the points with the trigger number exceeding the number threshold in the limit trigger curve, and counts the occurrence proportion in the total points; The operation situation judgment module selects the ripple fluctuation curve, and counts the occurrence proportion of the points exceeding the set threshold in the ripple fluctuation curve.
[0011] As a preferred embodiment of the present application, the operation situation judgment module comprehensively judges according to the occurrence proportion of the marked points in each curve, and takes the average value as the operation stability; The operation situation judgment module assigns and averages the maximum continuous occurrence number, the maximum deviation value and the continuous deviation cumulative amount in the output power curve and the power supply temperature curve to obtain the operation trend; The operation situation judgment module generates a corresponding early warning signal according to the operation stability and the operation trend.
[0012] Compared with the prior art, the present application has the following advantages: In the present application, the information of the power terminal is collected in real time during the operation of the negative high-voltage power terminal, so as to improve the data sample amount. When the data is returned, the data group is generated at a fixed time for uploading, so that the data is preliminarily processed by the edge computing mode, and the processed data is returned for further analysis, realizing the cooperative processing of the edge and the cloud, improving the data processing efficiency. After the data is returned, different analysis modes are used to analyze in two different dimensions of instantaneous dimension and dynamic dimension, so as to obtain the instantaneous operation result and the dynamic operation result. In addition, the synchronous analysis is performed on different parameters, realizing the operation safety monitoring and analysis from different parameter angles, and improving the comprehensiveness and accuracy of the safety monitoring of the negative high-voltage power terminal. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.
[0014] Figure 1 The system block diagram of the present application is shown in the figure. Figure 2 The system flowchart of the present application is shown in the figure. DETAILED DESCRIPTION
[0015] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0016] Embodiment one: please refer to Figure 1 - Figure 2 As shown in the figure, a hot cathode X-ray tube negative high voltage power supply terminal safety monitoring method comprises the following steps: Step one: continuously monitor the running process of the negative high voltage power supply terminal, collect the power supply temperature, output power, current limit trigger frequency, voltage and current ripple results, and return the monitoring results at regular intervals; Step two: take the monitoring results returned at the same time as a data set, and perform combined analysis on the compliance of the data set to obtain the instantaneous running result; Step three: statistically analyze the data set, statistically analyze the same category of data in each obtained data set, and record in the form of a curve to dynamically construct the running situation of the negative high voltage power supply terminal; Step four: analyze the running situation construction result of the negative high voltage power supply terminal to obtain the running trend and running stability of the negative high voltage power supply terminal; Step five: judge and quantitatively analyze the standard range according to the running trend and running stability of the negative high voltage power supply terminal to obtain the running safety warning signal of the negative high voltage power supply terminal.
[0017] Embodiment two: please refer to Figure 1 - Figure 2 As shown in the figure, a hot cathode X-ray tube negative high voltage power supply terminal safety monitoring system comprises a multi-source data monitoring module, a data slice analysis module, a dynamic series analysis module, a running situation judgment module and a warning output module. The multi-source data monitoring module is used to monitor the running process of the negative high voltage power supply terminal to obtain real-time monitoring results. The obtained monitoring results include the real-time temperature, real-time output power, current limit trigger frequency, voltage and current output waveform of the power supply. The monitoring results returned at the same time are recorded as a data set, and the data set is sent to the data slice analysis module. The data set includes the power supply temperature, output power, current limit trigger frequency, voltage and current ripple results. The specific data set generation process is as follows: The interval of the multi-source data monitoring module obtaining the returned monitoring results is t seconds. When obtaining the power supply temperature, the multi-source data monitoring module obtains the real-time temperature through a sensor and selects the highest temperature in the real-time power supply temperature as the monitoring result for return. The output power obtained by the multi-source data monitoring module is obtained in real time, and the returned output power is the average value of the real-time power in a time length t; The number of current limit trigger times returned by the multi-source data monitoring module is the number of times that the terminal of the negative high-voltage power supply triggers the active current safety limit in a time length t; The multi-source data monitoring module records the voltage and current waveforms in a time length t in real time through filtering and oscilloscope components, and compares the voltage waveform and the current waveform with the voltage waveform and the current waveform in the ideal state respectively, obtains the difference between the voltage waveform and the current waveform and the ideal state waveform according to the comparison result, and records it as the voltage and current ripple result; The multi-source data monitoring module obtains the difference between the voltage waveform, the current waveform and the ideal state waveform in the following manner: The multi-source data monitoring module superimposes the voltage waveform, the current waveform and the voltage waveform and the current waveform in the ideal state into the same proportional coordinate system, records the area between the voltage waveform and the current waveform and the horizontal axis as the actual characteristic quantity, records the area between the voltage waveform and the current waveform in the ideal state and the horizontal axis as the ideal characteristic quantity, calculates the difference between the actual characteristic quantity and the ideal characteristic quantity, and then calculates the ratio of the absolute value of the difference to the actual characteristic quantity to obtain the difference between the voltage waveform, the current waveform and the ideal state waveform After the data slicing analysis module obtains each data set, it quantitatively judges a plurality of data in the data set to obtain the compliance of different data, and combines the compliance to obtain the instantaneous operation result; Firstly, the compliance judgment of the data slicing analysis module includes: After the data slicing analysis module obtains the data set, it compares the power supply temperature in the data set with the set working temperature range. If the power supply temperature in the data set exceeds the set working temperature range, it is judged that the power supply temperature is too high, and if the power supply temperature in the data set does not exceed the set working temperature range, it is judged that the power supply temperature is normal; The data slicing analysis module calculates the output power in the data set and the set power to obtain the power difference, and calculates the ratio of the power difference to the set power to obtain the power deviation. If the power deviation is greater than the set threshold, it is judged that the power deviation is too large, and if the power deviation is not greater than the set threshold, it is judged that the power deviation is normal; The data slicing analysis module compares the number of current limit trigger times in the data set with the number threshold. If the number of current limit trigger times in the data set is greater than the number threshold, it is judged that the number of current limit trigger times is too high, otherwise it is judged that the number of current limit trigger times is normal; The data slicing analysis module compares the voltage and current ripple result in the data set with the set threshold. If the voltage and current ripple result in the data set is greater than the set threshold, it is judged that the ripple is too large, otherwise it is judged that the ripple is normal; The data slice analysis module counts the number of signals of excessive power supply temperature, excessive power deviation, excessive current limit trigger times or excessive ripple, and generates instantaneous operation results according to the statistical results; The dynamic series analysis module counts the obtained data groups, counts the same category data in each obtained data group, and creates a time axis to record in the form of a curve. Based on each data category in the data group, a power supply temperature curve, an output power curve, a limit trigger curve and a ripple variation curve are obtained as dynamic variation curves, which are dynamic construction results of the operation situation; The running situation judgment module selects different dynamic variation curves for tracking analysis. The running situation judgment module selects the power supply temperature curve, and marks the points exceeding the set working temperature range in the power supply temperature curve as out-of-specification points. The occurrence proportion and the maximum continuous occurrence number of the out-of-specification points are counted; The running situation judgment module selects the output power curve, and marks the points with excessive power deviation in the output power curve as marked points. The occurrence proportion, the maximum deviation value and the continuous deviation cumulative amount of the marked points are counted; The running situation judgment module selects the limit trigger curve, marks the points with trigger times exceeding the number threshold in the limit trigger curve, and counts the occurrence proportion in the total points; The running situation judgment module selects the ripple variation curve, and counts the occurrence proportion of the points exceeding the set threshold in the ripple variation curve; The running situation judgment module comprehensively analyzes the occurrence proportion of the marked points in each curve, and takes the average value as the running stability; The running situation judgment module assigns values to the maximum continuous occurrence number, the maximum deviation value and the continuous deviation cumulative amount in the output power curve and the power supply temperature curve, and obtains the running trend by averaging. Specifically, the maximum continuous occurrence number, the maximum deviation value and the continuous deviation cumulative amount are assigned values a, b and c respectively, where different values correspond to the influence degree on the result. After assigning values, the product of the maximum continuous occurrence number and the assigned value a, the product of the maximum deviation value and the assigned value b, and the product of the continuous deviation cumulative amount and the assigned value c are averaged to obtain the running trend; The running situation judgment module generates a corresponding warning signal according to the running stability and the running trend.
[0018] The threshold or the preset value, the preset range and the like are set for result comparison and analysis to determine whether it is good or bad. The size of the threshold is determined by combining the large model analysis of sample data and artificial experience for setting and storing. The threshold can also be adjusted appropriately according to seasonal or common influence conditions; And the setting of the weight proportion coefficient, the influence factor and the like is according to the influence size of each parameter on the result to distribute specific numerical values to finally reflect the influence condition on the result, and is also set by combining the large model analysis of sample data and artificial experience to enter storage, and can be appropriately adjusted through seasonal or rational influence conditions.
[0019] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.
Claims
1. A method of safety monitoring of a hot cathode X-ray tube negative high voltage power supply terminal, characterized in that, The method comprises the following steps: Step 1: continuously monitor the operation process of the negative high-voltage power supply terminal, and return the monitoring results at regular intervals; Step 2: take the monitoring results returned at the same time as a data set, analyze the data set, and obtain the instantaneous operation result; Step 3: statistically analyze the data set to dynamically construct the operation condition of the negative high-voltage power supply terminal; Step 4: analyze the construction result of the operation condition of the negative high-voltage power supply terminal to obtain the operation trend and operation stability of the negative high-voltage power supply terminal; Step 5: judge and quantitatively analyze the standard range according to the operation trend and operation stability of the negative high-voltage power supply terminal to obtain the operation safety early warning signal of the negative high-voltage power supply terminal.
2. A hot cathode X-ray tube negative high voltage power supply terminal safety monitoring system, characterized in that, The method comprises a multi-source data monitoring module, a data slice analysis module, a dynamic series analysis module, an operation trend judgment module and an early warning output module, the multi-source data monitoring module is used for monitoring the operation process of the negative high-voltage power supply terminal, obtaining real-time monitoring results, and recording the monitoring results returned at the same time as a data set, and sending the data set to the data slice analysis module; The data slice analysis module performs standardized quantitative judgment on multiple data in the data set each time the data set is obtained, obtains the compliance situation of different data, combines the compliance situations, and obtains the instantaneous operation result; The dynamic series analysis module statistically analyzes the obtained data set, creates a time axis, serially connects each data category in the data set, obtains a plurality of dynamic change curves as the dynamic construction result of the operation condition; The operation trend judgment module selects different dynamic change curves for tracking analysis to obtain the operation trend and operation stability, and finally generates the operation safety early warning signal.
3. A safety monitoring system for a hot cathode X-ray tube negative high voltage power supply terminal according to claim 2, characterized in that When the multi-source data monitoring module monitors the operation process of the negative high-voltage power supply terminal, the obtained monitoring results include the power supply temperature, output power, current limit trigger frequency, voltage and current ripple result; The interval of the multi-source data monitoring module for returning the monitoring results is t seconds, when the multi-source data monitoring module obtains the power supply temperature, the highest temperature in the real-time power supply temperature is selected as the monitoring result for returning; The multi-source data monitoring module obtains the output power in real time, and the returned output power is the average value of the real-time power in the time length t; The multi-source data monitoring module returns the current limit trigger frequency, which is the number of times that the negative high-voltage power supply terminal triggers the active current safety limit in the time length t; The multi-source data monitoring module records the voltage and current waveforms in the time length t in real time through filtering and oscilloscope components, compares the voltage waveform and the current waveform with the voltage waveform and the current waveform in the ideal state respectively, obtains the difference between the voltage waveform and the current waveform and the ideal state waveform according to the comparison result, and records the difference as the voltage and current ripple result.
4. A safety monitoring system for the termination of a high voltage supply for a hot cathode X-ray tube according to claim 3, characterized in that The multi-source data monitoring module obtains the difference between the voltage waveform, the current waveform and the ideal state waveform in the following way: The multi-source data monitoring module superimposes the voltage waveform, the current waveform and the ideal state voltage waveform and current waveform into the same proportional coordinate system, records the area between the voltage waveform and the current waveform and the horizontal axis as an actual characteristic quantity, records the area between the ideal state voltage waveform and the current waveform and the horizontal axis as an ideal characteristic quantity, carries out difference calculation on the actual characteristic quantity and the ideal characteristic quantity, and then carries out ratio calculation on the absolute value of the difference and the actual characteristic quantity to obtain the difference between the voltage waveform, the current waveform and the ideal state waveform.
5. A safety monitoring system for a terminal of a high voltage power supply for a hot cathode X-ray tube according to claim 2, characterized in that The data slice analysis module compares the power supply temperature in the data set with the set working temperature range to determine whether the power supply temperature is too high or normal; The data slice analysis module calculates the output power in the data set with the set power to obtain a power difference value, carries out ratio calculation on the power difference value and the set power to obtain a power deviation, and determines whether the power deviation is too large or normal; The data slice analysis module compares the current limiting trigger times in the data set with the times threshold to determine whether the current limiting trigger times are too high or normal; The data slice analysis module compares the voltage and current ripple results in the data set with the set threshold to determine whether the ripple is too large or normal; The data slice analysis module counts the number of signals of the power supply temperature being too high, the power deviation being too large, the current limiting trigger times being too high or the ripple being too large, and generates an instantaneous running result according to the counting result.
6. A safety monitoring system for a terminal of a high voltage power supply for a hot cathode X-ray tube according to claim 2, characterized in that The dynamic series analysis module obtains the data set, counts the same category of data in each obtained data set, and records the power supply temperature curve, the output power curve, the limiting trigger curve and the ripple change curve in the form of a curve as a dynamic construction result of the running condition.
7. A safety monitoring system for a hot cathode X-ray tube negative high voltage power supply terminal according to claim 2, characterized in that, The running situation judgment module selects the power supply temperature curve, marks the points in the power supply temperature curve that exceed the set working temperature range as out-of-standard points, and counts the appearance proportion and the maximum continuous appearance times of the out-of-standard points; The running situation judgment module selects the output power curve, takes the points in the output power curve with the power deviation being too large as marked points, and counts the appearance proportion, the maximum deviation value and the continuous deviation cumulative amount of the marked points; The running situation judgment module selects the limiting trigger curve, marks the points in the limiting trigger curve with the trigger times exceeding the times threshold, and counts the appearance proportion in the total points; The running situation judgment module selects the ripple change curve, and counts the appearance proportion of the points in the ripple change curve that exceed the set threshold.
8. A safety monitoring system for a terminal of a high voltage power supply for a hot cathode X-ray tube according to claim 2, characterized in that The running situation judgment module comprehensively analyzes the appearance proportion of the marked points in each curve, and takes the average value as the running stability; The running situation judgment module values and averages the maximum continuous appearance times, the maximum deviation value and the continuous deviation cumulative amount in the output power curve and the power supply temperature curve to obtain the running trend; The running situation judgment module generates a corresponding warning signal according to the running stability and the running trend.