High-power portable X-ray image equipment control system

Abstract

The invention discloses a high-power portable X-ray image equipment control system, and relates to the technical field of ray image equipment. Comprising a reference group setting module, a standard pixel value acquisition module, a shooting pixel acquisition module, a deviation value acquisition module, a boundary value and upper limit value acquisition module, an influence coefficient acquisition module, a real-time deviation correction module and an early warning module. If the real-time operation temperature exceeds the boundary value, a shutdown reminding signal is triggered, when the real-time operation temperature reaches the upper limit value, a forced shutdown signal is generated, an equipment power supply is cut off immediately, and when the equipment temperature exceeds the boundary value but does not reach the upper limit value, deviation correction processing is carried out on the real-time pixel value of each area block in the shot image according to the real-time temperature and the corresponding influence coefficient. The reliability and image quality of equipment are improved, and equipment damage and image distortion caused by too high temperature are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of ray imaging devices, and specifically relates to a control system for a high-power portable X-ray imaging device. Background Art

[0002] A portable X-ray imaging device is a miniaturized X-ray imaging device that is widely used in many fields such as medical treatment and industrial inspection. It is easy to carry, with a small volume and light weight. Usually, it can be conveniently carried and moved, making it easy to use at different locations, such as in the wild and community medical services. It has a simple design, a user-friendly operation interface, and is easy to operate. It does not require professional technicians to perform complex operations and debugging, reducing the usage threshold. It can quickly obtain X-ray images, reducing the waiting time for patients and improving work efficiency. In some emergency situations, it can quickly provide a basis for diagnosis. By adopting advanced radiation control technology, on the premise of ensuring imaging quality, it can minimize the X-ray radiation dose and reduce the radiation hazards to patients and operators. In grass-roots medical units, first-aid sites, remote areas, etc., it can be used for the preliminary diagnosis of various diseases and injuries such as fractures, lung diseases, and foreign bodies in the digestive tract, providing an important basis for subsequent treatment.

[0003] During the continuous operation of the X-ray imaging device, the device itself will generate heat due to operation. As the heat accumulates continuously, the increase in the device temperature will cause the filament of the X-ray tube to age faster, and the intensity and energy spectrum of the emitted X-rays will change. At the same time, the increase in the device temperature will cause the mechanical components of the device to undergo minute deformations under the action of heat, resulting in a change in the relative position between the radiation source and the detector, which will have a significant impact on the shooting effect of the imaging device. However, the existing X-ray imaging devices lack an effective temperature monitoring mechanism in dealing with the temperature impact. They cannot detect the change in the device temperature in a timely manner. Although some devices with simple temperature monitoring functions can only issue an alarm when the temperature is too high, they lack an effective solution for how to correct the image after the alarm is triggered. Therefore, a control system for a high-power portable X-ray imaging device is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a control system for a high-power portable X-ray imaging device, which solves the technical problem that the existing X-ray imaging devices lack an effective temperature monitoring mechanism in dealing with the temperature impact.

[0005] A control system for a high-power portable X-ray imaging device includes: A reference group setting module, which acquires a plurality of reference images and establishes a reference group; Standard pixel value acquisition module, which obtains the standard pixel values corresponding to different region blocks according to the pixel values corresponding to each region block in different reference images respectively; Shooting pixel acquisition module, which analyzes the captured images at each preset temperature to obtain the shooting pixels of each region block at different preset temperatures; Deviation value acquisition module, which establishes the shooting pixel change curves at different preset temperatures according to the shooting pixels of each region block at different preset temperatures and the standard pixel values, and analyzes them to obtain the deviation values corresponding to the shooting pixel change curves of each region block at different preset temperatures; Boundary value and upper limit value acquisition module, which analyzes and determines the upper limit interval line and the boundary interval line according to the deviation values corresponding to the shooting pixel change curves of each region block at different preset temperatures, and obtains the boundary value and the upper limit value according to the upper limit interval line and the boundary interval line; Early warning module, which generates a shutdown reminder signal or a forced shutdown signal according to the real-time operating temperature of the X-ray imaging device; Influence coefficient acquisition module, which analyzes and obtains each buffer interval of the X-ray imaging device and its corresponding influence coefficient according to the change coefficients of each interval line between the boundary interval line and the upper limit interval line; Real-time deviation correction module, when the operator does not perform shutdown processing after the shutdown reminder signal is generated, then according to the real-time operating temperature of the X-ray imaging device and the influence coefficients corresponding to each buffer interval, the pixel values of each region block of the captured image are corrected accordingly, so as to realize the deviation correction of the captured image.

[0006] As a further solution of the present invention: The specific method for obtaining the standard pixel values corresponding to different region blocks is as follows: S1: Divide each reference image evenly into the same number of region blocks, and randomly select one from the multiple region blocks without replacement as the analysis region; S2: Obtain the pixel values corresponding to the analysis region in different reference images respectively and mark them as Bi, and take the average of the maximum value and the minimum value in Bi as the standard pixel value C1 corresponding to the analysis region; S3: Repeat the above steps S1-S2, and the standard pixel values Cj corresponding to different region blocks can be obtained, where i represents different reference images, j represents different region blocks, and at the same time j is used as the region label, j = 1, 2,..., b, where b represents the number of region blocks, b is a positive integer, and b≥2.

[0007] As a further solution of the present invention: The specific method for obtaining the shooting pixels of each region block at different preset temperatures is as follows: S01: Set multiple preset temperatures Wa, and randomly select one from the multiple preset temperatures without replacement as the target temperature; S02: Without replacement, select the same one region block as in step S1 from multiple region blocks as the target region; S03: Obtain the mean value of the pixel values corresponding to the target region in each captured image of the X-ray imaging device at the target temperature, and use it as the captured pixel D11 corresponding to the target region of the X-ray imaging device at the target temperature; S04: Repeat the above steps S02 - S03, and the captured pixels D1j corresponding to each region block of the X-ray imaging device at the target temperature can be obtained; S05: Repeat the above steps S01 - S04, and the captured pixels Daj corresponding to each region block of the X-ray imaging device at different preset temperatures can be obtained, where a represents different preset temperatures, a = 1, 2,..., c1, where c1 represents the number of preset temperatures, and c1 is a positive integer.

[0008] As a further solution of the present invention: The specific method for establishing the captured pixel change curve at different preset temperatures is as follows: Through the captured pixel change curve establishment unit, use the region label of each region block as the abscissa, and use the difference between the captured pixel of each region block at different preset temperatures and the standard pixel value of each region block as the ordinate, so as to obtain the data point coordinates corresponding to each region block at different preset temperatures. Mark the data points of each region block at the same preset temperature in the same two-dimensional coordinate system according to the corresponding data point coordinates, and connect each data point in sequence from left to right, so as to obtain the captured pixel change curve at different preset temperatures.

[0009] As a further solution of the present invention: The specific method for obtaining the deviation value corresponding to each captured pixel change curve at different preset temperatures is as follows: S11: Through the deviation value acquisition unit, select the same preset temperature as in step S1 from multiple preset temperatures as the target temperature, and obtain the captured pixel change curve of the target temperature as the analysis curve. Mark the coordinates of each data point in the analysis curve in sequence according to the size of the region label corresponding to each region block, as Ej(j, EYj), where EYj is the difference between the captured pixel D11 of each region block at the target temperature and its corresponding standard pixel value; Use the connection line between every two adjacent data points in the analysis curve as the stage line, and according to the coordinates of the two data points forming the two endpoints of each stage line, use the ratio of the absolute value of the difference between the ordinate of the data point corresponding to the latter endpoint and the ordinate of the data point corresponding to the former endpoint of each stage line to the absolute value of the difference between their corresponding region labels as the inclination rate corresponding to each stage line, and use the mean value of the inclination rates as the deviation value H1 of the analysis curve at the target temperature; S12: Repeat the above step S11 to obtain the deviation value Ha corresponding to each pixel change curve at different preset temperatures respectively.

[0010] As a further solution of the present invention: The specific method for obtaining the boundary value and the upper limit value according to the upper limit interval line and the boundary interval line is as follows: Taking different preset temperatures as the abscissa and the deviation values corresponding to each pixel change curve at different preset temperatures as the ordinate, and then obtaining each coordinate point WHa (Wa, Ha). Mark each coordinate point in order from left to right according to the value of the preset temperature Wa. Connect each adjacent two coordinate points in turn, and take the line connecting each adjacent two coordinate points as the interval line. According to the coordinates of the two coordinate points forming the two endpoints of each interval line, adopt the same calculation method as obtaining the inclination rate of each stage line to calculate and obtain the change coefficient BHg corresponding to each interval line respectively. Mark the interval line with the largest absolute value of the change coefficient BHg as the upper limit interval line, and take the preset temperature value of the abscissa in the coordinate point corresponding to the previous endpoint on the upper limit interval line as the upper limit value JA corresponding to the X-ray imaging device; Compare the change coefficients of each interval line with the average value BHp of BHg in order from front to back until an interval line with a change coefficient greater than the average value BHp is obtained, and mark it as the boundary interval line. Take the preset temperature value corresponding to the abscissa in the coordinate point of the previous endpoint on the boundary interval line as the boundary value JB corresponding to the X-ray imaging device; When the real-time operating temperature of the X-ray imaging device reaches the boundary value JB, a shutdown reminder signal is generated. When the real-time operating temperature of the X-ray imaging device reaches the upper limit value JA, a forced shutdown signal is generated and forced shutdown processing is performed.

[0011] As a further solution of the present invention: The specific method for performing corresponding deviation correction processing on the pixel values of each region block of the captured image is as follows: Obtain each interval line between the boundary interval line and the upper limit interval line. Take the preset temperature value corresponding to the abscissa in the coordinate points forming each interval line as the temperature interval corresponding to each interval line respectively. Take each temperature interval as the buffer interval. Take the change coefficients corresponding to each interval line between the boundary interval line and the upper limit interval line as the influence coefficients Gv corresponding to each buffer interval respectively, and bind them to each buffer interval, where v represents different buffer intervals and v is a positive integer; When a shutdown reminder signal is generated and the operator does not shut down the machine, the real-time operating temperature of the X-ray imaging device is obtained, the influence coefficient R corresponding to the real-time operating temperature range is obtained, the real-time pixel values of the real-time captured image of the X-ray imaging device in each regional block are marked as Qj, the absolute value of the product between the influence coefficient R plus 1 and the real-time pixel values is marked as the deviation correction pixel value corresponding to each regional block respectively, and the real-time pixel values of each regional block are corrected according to the deviation correction pixel value.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the present invention, by monitoring the operating temperature of the X-ray imaging device in real time, when the operating temperature reaches the limit value, a shutdown reminder signal is triggered, which is displayed on the device operation interface in a prominent color and flashing manner, and is accompanied by a continuous high-decibel alarm sound to attract the operator's high attention, so as to prompt the operator that the operating temperature of the X-ray imaging device has reached the influence limit value. If the operation continues, the quality of the captured image will be affected. If the operator does not shut down the machine and continues to use it, the operating temperature will continue to be monitored in real time. When the real-time operating temperature reaches the upper limit value, a forced shutdown signal is generated to start the cut-off preparation program of the device power module, and the device power supply is immediately cut off to achieve forced shutdown operation, avoiding damage to the device due to overheating and serious deviation of the captured image, ensuring the safe operation of the device and the image quality, and performing forced shutdown processing to avoid excessive use temperature of the X-ray imaging device and large deviation of the captured image. (2) In the present invention, by analyzing the change coefficients corresponding to each interval line between the boundary interval line and the upper limit interval line, the buffer interval of the device and the influence coefficient corresponding to each buffer interval are obtained. When the device temperature exceeds the boundary value but does not reach the upper limit value, the real-time pixel values of each regional block in the captured image are corrected according to the real-time temperature and the corresponding influence coefficient to ensure the image quality, aiming to ensure the stable operation of the X-ray imaging device under different temperature conditions, improve the reliability of the device and the image quality, and avoid device damage and image distortion caused by overheating. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the system framework structure of the present invention; Figure 2 It is a schematic diagram of the process of whether to perform forced shutdown processing of the present invention. Detailed Embodiments

[0014] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0015] Embodiment 1: Please refer to Figure 1 , this application provides a control system for a high-power portable X-ray imaging device, including; A reference group setting module sets a standard environment, and obtains multiple captured images of the same item within the standard environment through the X-ray imaging device, thereby obtaining multiple reference images, and packs the multiple reference images to establish a reference group; It should be noted that the standard environment refers to the case of calibrated temperature and light, which means under standard shooting conditions. The shooting conditions refer to that influencing factors such as tube voltage, current, and exposure time of the X-ray tube are all defaulted to be the same; By using the X-ray imaging device to capture multiple images of the same item in this environment, obtaining reference images and establishing a reference group provides reference data for subsequent analysis, ensures the consistency of shooting conditions, and excludes interference from other factors.

[0016] A standard pixel value acquisition module is used to evenly divide each reference image into multiple region blocks, analyze the corresponding pixel values in each region block for different reference images respectively, and obtain the standard pixel values corresponding to different region blocks according to the analysis results. The specific method is as follows: Each reference image is evenly divided into multiple region blocks, and the corresponding pixel values in each region block for different reference images are obtained and marked as Aij respectively, where i represents different reference images, j represents different region blocks, and at the same time j is used as the region label. The region block labels are numbered in the order from top to bottom and from left to right, j = 1, 2,..., b, where b represents the number of region blocks, b is a positive integer, and b ≥ 2; It should be noted that the corresponding pixel values in each region block for different reference images are directly read through image processing software or hardware. Reading the pixel values of an image through image processing software or hardware is an existing and mature technology, so no further description will be made here; S1: Randomly select one from multiple region blocks without replacement as the analysis region; S2: Obtain the corresponding pixel values of different reference images at the analysis region and mark them as Bi respectively, and take the average of the maximum value and the minimum value in Bi as the standard pixel value C1 corresponding to the analysis region; S3: Repeat the above steps S1 - S2 to obtain the standard pixel values Cj corresponding to different regional blocks respectively, and bind them to the corresponding regional blocks respectively; The reference image is evenly divided into regional blocks, and the pixel values of different reference images within each regional block are analyzed. By obtaining the standard pixel values corresponding to each regional block, they are used as the standards for subsequent comparison.

[0017] The shooting pixel acquisition module is used to set multiple preset temperatures Wa, obtain multiple shooting images corresponding to the X-ray imaging device at multiple preset temperatures Wa respectively, and analyze them to obtain the shooting pixels corresponding to each regional block of the X-ray imaging device at different preset temperatures, where a represents different preset temperatures, a = 1, 2,..., c1, and c1 represents the number of preset temperatures, and c1 is a positive integer; S01: Randomly select one from multiple preset temperatures without replacement as the target temperature; S02: Select one regional block from multiple regional blocks without replacement, which is the same as the one in step S1, as the target region; S03: Obtain the mean value of the pixel values corresponding to the target region in each shooting image of the X-ray imaging device at the target temperature, and use it as the shooting pixel D11 corresponding to the target region of the X-ray imaging device at the target temperature; S04: Repeat the above steps S02 - S03 to obtain the shooting pixels D1j corresponding to each regional block of the X-ray imaging device at the target temperature respectively; S05: Repeat the above steps S01 - S04 to obtain the shooting pixels Daj corresponding to each regional block of the X-ray imaging device at different preset temperatures respectively; By setting multiple preset temperatures, the shooting pixels of each regional block of the X-ray imaging device at different preset temperatures are obtained to study the influence of temperature on pixel values The deviation value acquisition module, based on the differences between the shooting pixels corresponding to each regional block at different preset temperatures and the standard pixel values of each regional block, establishes the shooting pixel change curves at different preset temperatures, and analyzes each shooting pixel change curve graph to obtain the deviation values corresponding to each shooting pixel change curve at different preset temperatures. The specific method is as follows: The shooting pixel change curve establishing unit takes the area label of each area block as the abscissa, and takes the difference between the shooting pixels of each area block at different preset temperatures and the standard pixel values of each area block as the ordinate, so as to obtain the data point coordinates corresponding to each area block at different preset temperatures respectively. Plot the data point coordinates at the same preset temperature in the same coordinate system, so as to obtain the shooting pixel change curves at different preset temperatures. The specific way to obtain the shooting pixel change curves at different preset temperatures is as follows: Mark the data points of each area block at the same preset temperature in the same two-dimensional coordinate system according to the corresponding data point coordinates, and connect each data point in turn from left to right, so as to obtain the shooting pixel change curves at different preset temperatures; The deviation value obtaining unit analyzes and obtains the deviation values corresponding to the shooting pixel change curves at different preset temperatures respectively according to the data point coordinates of the shooting pixel change curves at different preset temperatures. The specific way is as follows: S11: Select the same preset temperature as the target temperature from multiple preset temperatures as the target temperature, and obtain the shooting pixel change curve at the target temperature as the analysis curve; Mark the data point coordinates in the analysis curve as Ej(j, EYj) in turn according to the size of the area label corresponding to each area block, where j is the area label, and EYj is the difference between the shooting pixel D11 of each area block at the target temperature and its corresponding standard pixel value, that is, EYj = D1j - Cj; Take the connection line between every two adjacent data points in the analysis curve as the stage line, and calculate the inclination rate corresponding to each stage line of the analysis curve according to the data point coordinates of the two endpoints forming each stage line. Take the average value of each inclination rate as the deviation value of the analysis curve. The specific way to obtain the inclination rate corresponding to each stage line of the analysis curve is as follows: Take the ratio of the absolute value of the difference between the ordinate of the data point corresponding to the latter endpoint and the ordinate of the data point corresponding to the former endpoint on each stage line to the absolute value of the difference between its corresponding area label j as the inclination rate Kr corresponding to each stage line. Take the average value Kp of Kr as the deviation value H1 of the analysis curve at the target temperature. Among them, r represents different stage lines on the analysis curve, r = 1, 2,..., c2, where c2 represents the number of stage lines on the analysis curve, c2 is a positive integer, and c2 = b - 2; It should be noted that the coordinate point of the former endpoint on the stage line refers to the data point closer to the origin among the two data points forming the stage line, that is, the data point located at the left endpoint of the stage line, and the latter endpoint refers to the data point located at the right endpoint of the stage line; S12: Repeat the above step S11 to obtain the deviation values Ha corresponding to the change curves of each captured pixel at different preset temperatures respectively. Based on the differences between the captured pixels of each region block and the standard pixel values at different preset temperatures, establish the change curves of the captured pixels, and analyze to obtain the deviation values corresponding to each curve, providing a data basis for determining the boundary value and the upper limit value.

[0018] The boundary value and upper limit value acquisition module analyzes the deviation values corresponding to the change curves of each captured pixel at different preset temperatures respectively, and obtains the boundary value and upper limit value corresponding to the X-ray imaging device according to the analysis results. The specific method is as follows: Use the different preset temperatures as the abscissa and the deviation values corresponding to the change curves of each captured pixel at different preset temperatures as the ordinate, and then obtain each coordinate point WHa (Wa, Ha). Mark each coordinate point in the order from left to right according to the numerical value of the preset temperature Wa. Connect each adjacent pair of coordinate points in turn, and use the line connecting each adjacent pair of coordinate points as the interval line. According to the coordinates of the two coordinate points at both ends of each interval line, adopt the same calculation method as obtaining the slope of each stage line to calculate the change coefficient corresponding to each interval line respectively, that is, use the absolute value of the difference between the ordinate of the coordinate point corresponding to the latter end point and the ordinate of the coordinate point corresponding to the former end point on each interval line divided by the absolute value of the difference between its corresponding abscissa, that is, the corresponding preset temperature, as the change coefficient corresponding to each interval line respectively. Analyze according to the change coefficients corresponding to each interval line respectively to obtain the boundary value and upper limit value corresponding to the X-ray imaging device. Mark the change coefficients corresponding to each interval line as BHg, and obtain the mean value BHp of BHg, where g represents different interval lines, g = 1, 2,..., c3, where c3 represents the number of interval lines, c3 is a positive integer, and c3 = c1 - 1. Mark the interval line with the largest absolute value of the change coefficient BHg as the upper limit interval line, and use the preset temperature value of the abscissa of the coordinate point corresponding to the former end point on the upper limit interval line as the upper limit value JA corresponding to the X-ray imaging device. Compare the change coefficients of each interval line with the mean value BHp of BHg in the order from front to back until an interval line with a change coefficient greater than the mean value BHp is obtained, and mark it as the boundary interval line. Use the preset temperature value corresponding to the abscissa of the coordinate point of the former end point on the boundary interval line as the boundary value JB corresponding to the X-ray imaging device. It should be noted that the coordinate point of the front endpoint on the boundary interval line refers to the coordinate point closer to the origin among the two coordinate points that make up the boundary interval line, that is, the coordinate point at the left endpoint of the boundary interval line, and the rear endpoint refers to the coordinate point at the right endpoint of the boundary interval line; The limit value JB refers to the temperature numerical point at which the image quality of the X-ray imaging device begins to decline. It represents the critical point at which the device temperature affects the image quality of the X-ray imaging device. When the device temperature reaches the limit value JB, the image quality of the X-ray imaging device begins to change significantly, referring to the temperature numerical point at which the image quality of the X-ray imaging device begins to decline; The upper limit value is the highest temperature that the device can withstand. Exceeding this value may damage the device or cause serious image distortion.

[0019] The warning module obtains the real-time operating temperature of the X-ray imaging device through a temperature sensor, and generates a shutdown reminder signal or a forced shutdown signal according to the real-time operating temperature. The specific method is as follows: When the real-time operating temperature of the X-ray imaging device reaches the limit value JB, a shutdown reminder signal is generated to remind the operator that the operating temperature of the X-ray imaging device has reached the influence limit value, and continued operation will affect the image quality of the captured images. When the real-time operating temperature of the X-ray imaging device reaches the upper limit value JA, a forced shutdown signal is generated and a forced shutdown process is performed to prevent the operating temperature of the X-ray imaging device from being too high, resulting in too large a deviation in the captured images; The shutdown reminder signal is displayed on the device operation interface in a prominent color and flashing manner, accompanied by a continuous high-decibel alarm sound to attract the operator's high attention; generating a forced shutdown signal starts the power-off preparation program of the device power module and immediately cuts off the device power supply to achieve forced shutdown operation, avoiding damage to the device due to high temperature and serious deviation of the captured images, and ensuring the safe operation of the device and the image quality.

[0020] Embodiment 2: As the second embodiment of the present invention, when the present application is specifically implemented, compared with Embodiment 1, the technical solution of this embodiment is only different from that of Embodiment 1 in that this embodiment further includes an influence coefficient acquisition module; The influence coefficient acquisition module analyzes the change coefficients corresponding to each interval line between the boundary interval line and the upper limit interval line, and obtains the buffer interval of the X-ray imaging device and the influence coefficient corresponding to each buffer interval according to the analysis results. The specific method is as follows: Obtain the variation coefficients corresponding to each interval line between the boundary interval line and the upper limit interval line, as well as the temperature intervals corresponding to each interval line, use the temperature intervals corresponding to each interval line as the buffer zone of the X-ray imaging device, use each variation coefficient as the influence coefficient Gv corresponding to each buffer zone, and bind it to each buffer zone, where v refers to different buffer zones and is a positive integer; Obtain each interval line between the boundary interval line and the upper limit interval line, use the preset temperature values corresponding to the horizontal coordinates of the coordinate points constituting each interval line as the temperature intervals corresponding to each interval line, and use the temperature intervals corresponding to each interval line as the buffer zone; The buffer zone is the buffer temperature space from the time when image quality begins to deteriorate to the time when the device may suffer serious damage or severe image distortion. By analyzing the variation coefficients corresponding to each interval line between the boundary interval line and the upper limit interval line, the impact coefficients corresponding to the device's buffer zone and each buffer zone are obtained, providing a basis for real-time correction.

[0021] Example 3: As Example 3 of the present invention, please refer to Figure 2 In the specific implementation of this application, compared with Example 1 and Example 2, the technical solution of this embodiment is to combine the solutions of Example 1 and Example 2. The only difference between the technical solution of this embodiment and Example 1 and Example 2 is that this embodiment also includes a real-time correction module; The real-time correction module, after generating a stop reminder signal, if the operator does not stop the machine and continues to use it, will perform real-time correction processing on the captured image based on the influence coefficients corresponding to each buffer zone of the X-ray imaging device. The specific method is as follows: When a shutdown reminder signal is generated and the operator does not shut down the machine, the real-time operating temperature of the X-ray imaging device is obtained, and the influence coefficient R of the corresponding interval of the real-time operating temperature is obtained. The real-time pixel value of each area block of the real-time image captured by the X-ray imaging device is marked as Qj. The correction formula JQj=|Qj+(1+R)| is used to obtain the correction pixel value JQj corresponding to each area block. The real-time pixel value of each area block is corrected according to the correction pixel value. The real-time pixel value of each area block in the captured image is corrected according to the real-time temperature of the device. Then, the pixel value of each area block in the captured image is adjusted accordingly to achieve correction of the captured image and ensure the image quality as much as possible. Analyze the historical usage data of the X-ray imaging device to obtain the abnormal temperature limit value JB, that is, the limit value corresponding to when the image quality of the ray imaging device begins to decline due to the device temperature during image capture; monitor the operating temperature of the X-ray imaging device in real time. When the operating temperature of the X-ray imaging device reaches the limit value, a shutdown reminder signal is triggered to prompt the operator that the operating temperature of the X-ray imaging device has reached the impact limit value, and continued operation will affect the image quality of the captured image. If the operator does not shut down the device and continues to use it, the real-time pixel values of each region block in the captured image are corrected according to the real-time temperature of the device, and then the pixel values of each region block in the captured image are adjusted accordingly to achieve image correction and ensure the image quality as much as possible. When the real-time operating temperature of the X-ray imaging device reaches the upper limit value JA, a forced shutdown signal is generated and a forced shutdown process is performed to prevent the operating temperature of the X-ray imaging device from being too high, resulting in a large deviation in the captured image. When the shutdown reminder signal is sent and the operator does not shut down the device, real-time image correction is performed on the captured image according to the buffer interval influence coefficient corresponding to the real-time operating temperature of the device to ensure the image quality to the greatest extent; When the device temperature exceeds the boundary value but does not reach the upper limit value, real-time image correction is performed on the captured image according to the real-time temperature and the influence coefficient to ensure the image quality, aiming to ensure the stable operation of the X-ray imaging device under different temperature conditions, improve the reliability of the device and the image quality, and avoid device damage and image distortion caused by too high temperature.

[0022] Embodiment 4: As Embodiment 4 of the present invention, in the specific implementation of the present application, compared with Embodiment 1, Embodiment 2, and Embodiment 3, the difference between this embodiment and Embodiment 1, Embodiment 2, and Embodiment 3 is only that this embodiment analyzes the situation when the calculated limit value and upper limit value are the same value; When the calculated limit value and upper limit value are the same value, it means that the temperature range in which the X-ray imaging device operates is extremely narrow, and there is almost no buffer space between the start of image quality decline and the possible serious damage to the device or serious distortion of the image. At this time, the system will perform special processing on this special value to ensure the safe operation of the device and the image quality. Then this value represents the extremely sensitive temperature point of the device operation. At this time, when the real-time operating temperature of the device reaches the safety margin value Y1 before this value, the warning module generates a shutdown reminder signal and a pre-trigger signal for forced shutdown. When the real-time operating temperature of the X-ray imaging device reaches this value, a forced shutdown operation is immediately executed; The specific value of the safety margin Y1 is determined by relevant personnel according to actual needs. Here, the value of the safety margin Y is 5°C. The shutdown reminder signal is displayed on the device operation interface in a prominent color and flashing manner, accompanied by a continuous high-decibel alarm sound to attract the high attention of the operator; the forced shutdown pre-trigger signal then starts the power-off preparation procedure of the device power module in advance. Once the device temperature reaches this special value, the device power supply is immediately cut off to achieve forced shutdown, avoiding damage to the device due to overheating and serious deviation of the captured images.

[0023] Embodiment 5: As Embodiment 5 of the present invention, in the specific implementation of this application, compared with Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4, the technical solution of this embodiment lies in combining the solutions of the above-mentioned Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 for implementation.

[0024] The above formulas are all dimensionless and take their numerical values for calculation. The formulas are obtained by collecting a large amount of data for software simulation to get a formula closest to the real situation. The preset parameters and threshold values in the formulas are set by those skilled in the art according to the actual situation.

[0025] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A control system for a high-power portable X-ray imaging device, characterized in that including; a reference group setting module, which obtains a plurality of reference images and establishes a reference group; a standard pixel value obtaining module, which obtains the standard pixel values corresponding to different region blocks according to the pixel values respectively corresponding to different reference images in each region block; a captured pixel obtaining module, which analyzes the captured images at each preset temperature to obtain the captured pixels of each region block at different preset temperatures; a deviation value obtaining module, which establishes a captured pixel change curve at different preset temperatures according to the captured pixels of each region block at different preset temperatures and the standard pixel values, and analyzes it to obtain the deviation values corresponding to the captured pixel change curves at different preset temperatures; a boundary value and upper limit value obtaining module, which analyzes and determines the upper limit interval line and the boundary interval line according to the deviation values corresponding to the captured pixel change curves at different preset temperatures, and obtains the boundary value and the upper limit value according to the upper limit interval line and the boundary interval line; an early warning module, which generates a shutdown reminder signal or a forced shutdown signal according to the real-time operating temperature of the temperature X-ray imaging device; an influence coefficient obtaining module, which analyzes and obtains each buffer interval of the X-ray imaging device and its corresponding influence coefficient according to the change coefficients of each interval line between the boundary interval line and the upper limit interval line; a real-time correction module, which, when the operator does not perform shutdown processing after the shutdown reminder signal is generated, corrects the pixel values of each region block of the captured image according to the real-time operating temperature of the X-ray imaging device and the influence coefficients corresponding to each buffer interval, so as to realize the correction of the captured image.

2. The control system of a high-power portable X-ray imaging device according to claim 1, characterized in that, The specific method for obtaining the standard pixel values corresponding to different region blocks is as follows: S1: Uniformly divide each reference image into the same number of region blocks, and randomly select one from the multiple region blocks without replacement as the analysis region; S2: Obtain the pixel values corresponding to the analysis region in different reference images and mark them as Bi respectively, and take the average of the maximum value and the minimum value in Bi as the standard pixel value C1 corresponding to the analysis region; S3: Repeat the above steps S1-S2, and the standard pixel values Cj corresponding to different region blocks can be obtained, where i represents different reference images, j represents different region blocks, and at the same time, j is used as the region label, j = 1, 2,..., b, where b represents the number of region blocks, b is a positive integer, and b≥2.

3. A control system for a high-power portable X-ray imaging device according to claim 2, wherein, The specific method for obtaining the captured pixels of each region block at different preset temperatures is as follows: S01: Set a plurality of preset temperatures Wa, and randomly select one from the multiple preset temperatures without replacement as the target temperature; S02: Randomly select the same region block as in step S1 from the multiple region blocks without replacement as the target region; S03: Obtain the average value of the pixel values corresponding to the target region in each captured image of the X-ray imaging device at the target temperature, and take it as the captured pixel D11 corresponding to the target region of the X-ray imaging device at the target temperature; S04: Repeat the above steps S02-S03, and the captured pixels D1j corresponding to each region block of the X-ray imaging device at the target temperature can be obtained. S05: Repeat the above steps S01 - S04 to obtain the captured pixels Daj corresponding to each regional block of the X-ray imaging device at different preset temperatures, where a represents different preset temperatures, a = 1, 2, ……, c1, and c1 represents the number of preset temperatures, and c1 is a positive integer.

4. The control system of a high-power portable X-ray imaging device according to claim 3, characterized in that, The specific method for establishing the captured pixel change curve at different preset temperatures is as follows: Through the captured pixel change curve establishment unit, use the regional label of each regional block as the abscissa, and use the difference between the captured pixels of each regional block at different preset temperatures and the standard pixel value of each regional block as the ordinate, so as to obtain the data point coordinates corresponding to each regional block at different preset temperatures. Mark the data points of each regional block at the same preset temperature in the same two-dimensional coordinate system according to the corresponding data point coordinates, and connect each data point in sequence from left to right to obtain the captured pixel change curve at different preset temperatures.

5. The control system of a high-power portable X-ray imaging device according to claim 4, wherein, The specific method for obtaining the deviation values corresponding to each captured pixel change curve at different preset temperatures is as follows: S11: Through the deviation value acquisition unit, select the same preset temperature as the target temperature in the multiple preset temperatures as in step S1, and obtain the captured pixel change curve of the target temperature as the analysis curve. Mark the data point coordinates in the analysis curve as Ej(j, EYj) in sequence according to the size of the regional label corresponding to each regional block. EYj is the difference between the captured pixel D11 of each regional block at the target temperature and its corresponding standard pixel value. Take the line connecting every two adjacent data points in the analysis curve as a stage line, and calculate the slope corresponding to each stage line of the analysis curve according to the two data point coordinates of the two endpoints of each stage line. Take the average value of the slopes as the deviation value H1 of the analysis curve at the target temperature. S12: Repeat the above step S11 to obtain the deviation values Ha corresponding to each captured pixel change curve at different preset temperatures.

6. The control system of a high-power portable X-ray imaging device according to claim 5, characterized in that, The specific method for obtaining the slope corresponding to each stage line of the analysis curve is as follows: Take the ratio of the absolute value of the difference between the ordinate of the data point corresponding to the latter endpoint and the ordinate of the data point corresponding to the former endpoint of each stage line to the absolute value of the difference between their corresponding regional labels as the slope corresponding to each stage line.

7. A control system for a high-power portable X-ray imaging device according to claim 5, characterized in that, The specific method for obtaining the boundary value and the upper limit value according to the upper limit interval line and the boundary interval line is as follows: Taking different preset temperatures as the abscissa and the deviation values corresponding to the respective pixel change curves at different preset temperatures as the ordinate, thus obtaining respective coordinate points WHa (Wa, Ha). Mark the respective coordinate points in sequence from left to right according to the numerical value of the preset temperature Wa. Connect each adjacent pair of coordinate points in sequence, and take the line connecting each adjacent pair of coordinate points as an interval line. According to the coordinates of the two coordinate points forming the two endpoints of each interval line, adopt the same calculation method as obtaining the inclination rate of each stage line to calculate and obtain the change coefficient BHg corresponding to each interval line. Mark the interval line with the largest absolute value of the change coefficient BHg as the upper limit interval line, and take the preset temperature value of the abscissa in the coordinate point corresponding to the front endpoint on the upper limit interval line as the upper limit value JA corresponding to the X-ray imaging device; Compare the change coefficients of each interval line with the mean value BHp of BHg in sequence from the front to the back until an interval line with a change coefficient greater than the mean value BHp is obtained, and mark it as the boundary interval line. Take the preset temperature value corresponding to the abscissa in the coordinate point of the front endpoint on the boundary interval line as the boundary value JB corresponding to the X-ray imaging device.

8. The control system of a high-power portable X-ray imaging device according to claim 7, characterized in that, The specific method for judging and generating a shutdown reminder signal or a forced shutdown signal is: When the real-time operating temperature of the X-ray imaging device reaches the boundary value JB, a shutdown reminder signal is generated. When the real-time operating temperature of the X-ray imaging device reaches the upper limit value JA, a forced shutdown signal is generated and forced shutdown processing is performed.

9. The control system of a high-power portable X-ray imaging device according to claim 7, characterized in that The specific method for obtaining each buffer interval of the X-ray imaging device and its corresponding influence coefficient is: Obtain each interval line located between the boundary interval line and the upper limit interval line. Take the preset temperature value corresponding to the abscissa in the coordinate points forming each interval line as the temperature interval corresponding to each interval line. Take each temperature interval as a buffer interval. Take the change coefficients corresponding to each interval line located between the boundary interval line and the upper limit interval line as the influence coefficients Gv corresponding to each buffer interval, and bind them to each buffer interval, where v represents different buffer intervals and v is a positive integer.

10. The control system of a high-power portable X-ray imaging device according to claim 9, characterized in that, The specific method for performing corresponding deviation correction processing on the pixel values of each region block of the captured image is: In the case where a shutdown reminder signal is generated and the operator has not shut down, obtain the real-time operating temperature of the X-ray imaging device, obtain the influence coefficient R of the interval corresponding to the real-time operating temperature. Mark the real-time pixel value of each region block of the real-time captured image of the X-ray imaging device as Qj. Mark the absolute value of the product between the influence coefficient R plus 1 and the real-time pixel value as the deviation correction pixel value corresponding to each region block. Perform deviation correction processing on the real-time pixel value of each region block according to the deviation correction pixel value.

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