A control system for high-power portable X-ray imaging equipment

Abstract

The present invention discloses a high-power portable X-ray imaging equipment control system, which relates to the technical field of ray imaging equipment. The control system comprises 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 correction module and an early warning module. The control system monitors the operating temperature of the X-ray imaging equipment in real time. When the operating temperature reaches the boundary value, a shutdown reminder signal is triggered. When the real-time operating temperature reaches the upper limit value, a forced shutdown signal is generated and the power supply of the equipment is immediately cut off. When the equipment temperature exceeds the boundary value but does not reach the upper limit value, the real-time pixel value of each area block in the shot image is corrected according to the real-time temperature and the corresponding influence coefficient, thereby improving the reliability and image quality of the equipment and avoiding equipment damage and image distortion caused by excessive temperature.

Description

Technical Field

[0001] The present invention belongs to the technical field of ray imaging equipment, and in particular is a high-power portable X-ray imaging equipment control system. Background Art

[0002] Portable X-ray imaging equipment is a miniaturized, high-power portable X-ray imaging device that has been widely used in many fields, such as medical care and industrial testing. Its small size and light weight make it easy to carry and move, making it convenient for use in various locations, such as field and community medical services. Its simple design and user-friendly interface make it easy to use, eliminating the need for complex operation and debugging by professional technicians. This lowers the barrier to entry for use, enables rapid acquisition of X-ray images, reduces patient wait times, and improves work efficiency. In some emergency situations, it can quickly provide a basis for diagnosis. Using advanced radiation control technology, while ensuring image quality, it minimizes X-ray radiation dose and reduces radiation hazards to patients and operators. In primary healthcare units, emergency sites, and remote areas, it can be used for 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 X-ray imaging equipment, the equipment itself will generate heat due to operation. As the heat continues to accumulate, the temperature of the equipment will increase, which will accelerate the aging of the filament of the X-ray tube and change the intensity and energy spectrum of the emitted X-rays. At the same time, the temperature increase of the equipment will cause the mechanical parts of the equipment to undergo slight deformation under the action of heat, resulting in a change in the relative position of the X-ray source and the detector, which will have a significant impact on the imaging effect of the imaging equipment.

[0004] However, existing X-ray imaging equipment lacks an effective temperature monitoring mechanism to deal with temperature influences and is unable to detect changes in the equipment temperature in a timely manner. Although some equipment with simple temperature monitoring functions can only issue an alarm when the temperature is too high, there is a lack of effective solutions for how to correct the image after the alarm is triggered. Therefore, a high-power portable X-ray imaging equipment control system is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-power portable X-ray imaging equipment control system, which solves the technical problem that existing X-ray imaging equipment lacks an effective temperature monitoring mechanism in the temperature-affected part.

[0006] A high-power portable X-ray imaging equipment control system, comprising:

[0007] A reference group setting module, which obtains multiple reference images and establishes a reference group;

[0008] The standard pixel value acquisition module obtains the standard pixel values ​​corresponding to different area blocks according to the pixel values ​​corresponding to different reference images in each area block;

[0009] A shooting pixel acquisition module analyzes the images shot at each preset temperature to obtain the shooting pixels of each area block at different preset temperatures;

[0010] The deviation value acquisition module establishes a pixel change curve at different preset temperatures based on the pixel values ​​of each area block at different preset temperatures and the standard pixel values, and analyzes the curve to obtain the deviation values ​​corresponding to each pixel change curve at different preset temperatures;

[0011] The boundary value and upper limit value acquisition module determines the upper limit interval line and the boundary interval line according to the deviation numerical value analysis corresponding to each shooting pixel change curve 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;

[0012] The early warning module generates a shutdown reminder signal or a forced shutdown signal based on the real-time operating temperature of the temperature X-ray imaging equipment;

[0013] The influence coefficient acquisition module analyzes and obtains the influence coefficients corresponding to each buffer zone of the X-ray imaging device according to the variation coefficients of each interval line between the boundary interval line and the upper limit interval line;

[0014] The real-time correction module performs corresponding correction processing on the pixel values ​​of each area block of the captured image according to the real-time operating temperature of the X-ray imaging equipment and the influence coefficients corresponding to each buffer zone when the operator does not perform the shutdown process after the shutdown reminder signal is generated, thereby realizing the correction of the captured image.

[0015] As a further solution of the present invention, the specific method of obtaining the standard pixel values ​​corresponding to different area blocks is:

[0016] S1: Each reference image is evenly divided into multiple identical blocks, and one of the blocks is randomly selected without replacement as the analysis area;

[0017] S2: Obtain pixel values ​​corresponding to different reference images in the analysis area and mark them as Bi respectively, and use the average of the maximum and minimum values ​​in Bi as the standard pixel value C1 corresponding to the analysis area;

[0018] S3: Repeat the above steps S1-S2 to obtain the standard pixel values ​​Cj corresponding to different area blocks, where i refers to different reference images, j refers to different area blocks, and j is used as the area label, j=1, 2, ..., b, where b refers to the number of area blocks, b is a positive integer, b≥2.

[0019] As a further solution of the present invention, the specific method of obtaining the pixels captured by each area block at different preset temperatures is as follows:

[0020] S01: Set multiple preset temperatures Wa, and randomly select one of the preset temperatures without replacement as the target temperature;

[0021] S02: selecting the same area block as that in step S1 from the multiple area blocks without replacement as the target area;

[0022] S03: Obtaining an average of pixel values ​​corresponding to the target area of ​​each image captured by the X-ray imaging device at the target temperature, and using the average as the captured pixel D11 corresponding to the target area of ​​the X-ray imaging device at the target temperature;

[0023] S04: Repeat the above steps S02-S03 to obtain the shooting pixels D1j corresponding to each area block of the X-ray imaging device at the target temperature;

[0024] S05: Repeat the above steps S01-S04 to obtain the shooting pixels Daj corresponding to each area block of the X-ray imaging device at different preset temperatures, where a refers to different preset temperatures, a=1, 2,..., c1, where c1 refers to the number of preset temperatures, and c1 is a positive integer.

[0025] As a further solution of the present invention, the specific method of establishing the shooting pixel change curve at different preset temperatures is as follows:

[0026] By using a pixel change curve establishment unit, the area label of each area block is used as the horizontal coordinate, and the difference between the captured pixels of each area block at different preset temperatures and the standard pixel value of each area block is used as the vertical coordinate, so as to obtain the data point coordinates corresponding to each area block at different preset temperatures. The data points of each area block at the same preset temperature are marked in the same two-dimensional coordinate system according to the corresponding data point coordinates, and the data points are connected in sequence from left to right, so as to obtain the pixel change curves at different preset temperatures.

[0027] As a further solution of the present invention, the specific method for obtaining the deviation values ​​corresponding to the change curves of each captured pixel at different preset temperatures is as follows:

[0028] S11: A deviation value acquisition unit is used to select the same preset temperature as that in step S1 from among multiple preset temperatures as the target temperature, and a pixel change curve of the target temperature is obtained as an analysis curve. The coordinates of each data point in the analysis curve are marked as Ej(j, EYj) in sequence according to the size of the area label corresponding to each area block, where EYj is the difference between the captured pixel D11 of each area block at the target temperature and its corresponding standard pixel value; a line connecting each two adjacent data points in the analysis curve is used as a stage line, and based on the coordinates of the two data points constituting the two end points of each stage line, the ratio of the absolute value of the difference between the ordinate of the data point corresponding to the latter end point on each stage line and the absolute value of the difference between the ordinate of the data point corresponding to the former end point and the absolute value of the difference between the ordinate and the area label is used as the slope corresponding to each stage line, and the average of the slopes is used as the deviation value H1 of the analysis curve at the target temperature;

[0029] 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.

[0030] As a further solution of the present invention: the specific method of obtaining the boundary value and the upper limit value according to the upper limit interval line and the boundary interval line is:

[0031] Different preset temperatures are used as horizontal coordinates, and the deviation values ​​corresponding to the change curves of each shooting pixel at different preset temperatures are used as vertical coordinates, thereby obtaining each coordinate point WHa (Wa, Ha), and each coordinate point is marked in order from left to right according to the value of the preset temperature Wa, and each adjacent two coordinate points are connected in sequence, and the connecting line between each adjacent two coordinate points is used as an interval line, and based on the coordinates of the two coordinate points constituting the two end points of each interval line, the same calculation method as that for obtaining the inclination rate of each stage line is adopted to calculate and obtain the variation coefficient BHg corresponding to each interval line, and the interval line with the largest absolute value of the variation coefficient BHg is marked as the upper limit interval line, and the preset temperature value of the horizontal coordinate of the coordinate point corresponding to the previous end point on the upper limit interval line is used as the upper limit value JA corresponding to the X-ray imaging device;

[0032] Compare the variation coefficients of each interval line with the mean value BHp of BHg in order from front to back until an interval line with a variation coefficient greater than the mean value BHp is obtained, and mark it as the boundary interval line. The preset temperature value corresponding to the horizontal coordinate of the coordinate point of the previous endpoint of the boundary interval line is used as the boundary value JB corresponding to the X-ray imaging device;

[0033] When the real-time operating temperature of the X-ray imaging device reaches the limit 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.

[0034] As a further solution of the present invention, the specific method of performing corresponding deviation correction processing on the pixel values ​​of each area block of the captured image is as follows:

[0035] Obtain each interval line between the boundary interval line and the upper limit interval line, use the preset temperature value corresponding to the horizontal coordinate of the coordinate point of each interval line as the temperature interval corresponding to each interval line, use each temperature interval as a buffer zone, use the variation coefficient corresponding to each interval line between the boundary interval line and the upper limit interval line 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 v is a positive integer;

[0036] 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 the real-time image of the X-ray imaging device in each area block is marked as Qj, and the absolute value of the product of the influence coefficient R plus 1 and the real-time pixel value is marked as the correction pixel value corresponding to each area block. The real-time pixel value of each area block is corrected according to the correction pixel value.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The present invention monitors 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 striking color and flashing manner, accompanied by a continuous high-decibel alarm sound, so as to attract the attention of the operator and remind the operator that the operating temperature of the X-ray imaging device has reached the impact limit value. If the operator continues to operate, it will affect the quality of the captured image. If the operator does not shut down the device and continues to use the device, 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 is immediately cut off to implement a forced shutdown operation, thereby avoiding damage to the device due to excessive temperature and serious deviation of the captured image, ensuring the safety of the device operation and image quality, and performing forced shutdown processing to avoid the operating temperature of the X-ray imaging device being too high, resulting in excessive deviation of the captured image;

[0039] (2) The present invention obtains the influence coefficients corresponding to the buffer zones of the device and the buffer zones by analyzing the variation coefficients corresponding to the interval lines between the boundary interval line and the upper limit interval line. When the device temperature exceeds the boundary value but does not reach the upper limit value, the real-time pixel values ​​of each area block in the captured image are corrected according to the real-time temperature and the corresponding influence coefficients to ensure image quality. The purpose is to ensure the stable operation of the X-ray imaging device under different temperature conditions, improve the reliability and image quality of the device, and avoid device damage and image distortion caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of the system framework structure of the present invention;

[0041] Figure 2 This is a flow chart of whether to perform forced shutdown processing in the present invention. DETAILED DESCRIPTION

[0042] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example 1: Please refer to Figure 1 ,This application provides a high-power portable X-ray imaging equipment control system, including;

[0044] A reference group setting module sets a standard environment and obtains multiple images of the same object in the standard environment through X-ray imaging equipment, thereby obtaining multiple reference images, and packaging the multiple reference images to establish a reference group;

[0045] It should be noted that the standard environment refers to the standard shooting conditions when the temperature and light are calibrated. The shooting conditions refer to the fact that the influencing factors such as the tube voltage, current, exposure time, etc. are all the same by default.

[0046] By using X-ray imaging equipment to take multiple images of the same object in this environment, reference images are obtained and a reference group is established to provide benchmark data for subsequent analysis, ensure the consistency of shooting conditions, and eliminate interference from other factors.

[0047] The standard pixel value acquisition module is used to evenly divide the reference image into multiple area blocks, analyze the pixel values ​​corresponding to different reference images in each area block, and obtain the standard pixel values ​​corresponding to different area blocks according to the analysis results. The specific method is as follows:

[0048] Each reference image is evenly divided into multiple blocks, and the pixel values ​​corresponding to different reference images in each block are obtained and marked as Aij, where i refers to different reference images and j refers to different blocks. At the same time, j is used as the region label. The blocks are numbered from top to bottom and from left to right, j = 1, 2, ..., b, where b refers to the number of blocks, b is a positive integer, b ≥ 2;

[0049] It should be noted that directly reading the pixel values ​​corresponding to the different reference images in each area block using image processing software or hardware is an existing and mature technology, so it will not be described in detail here.

[0050] S1: One area is randomly selected from multiple area blocks without replacement as the analysis area;

[0051] S2: Obtain pixel values ​​corresponding to different reference images in the analysis area and mark them as Bi respectively, and use the average of the maximum and minimum values ​​in Bi as the standard pixel value C1 corresponding to the analysis area;

[0052] S3: Repeat the above steps S1-S2 to obtain the standard pixel values ​​Cj corresponding to different area blocks, and bind them to the corresponding area blocks respectively;

[0053] The reference image is evenly divided into regional blocks, and the pixel values ​​of different reference images in each regional block are analyzed. The standard pixel value corresponding to each regional block is obtained as the standard for subsequent comparison.

[0054] a shooting pixel acquisition module, configured to set a plurality of preset temperatures Wa, obtain a plurality of images captured by the X-ray imaging device at the plurality of preset temperatures Wa, and analyze the images to obtain the shooting pixels corresponding to each area block of the X-ray imaging device at the different preset temperatures, where a represents a different preset temperature, and a=1, 2, ..., c1, where c1 represents the number of preset temperatures and c1 is a positive integer;

[0055] S01: Randomly select one of the preset temperatures without replacement as the target temperature;

[0056] S02: selecting the same area block as that in step S1 from the multiple area blocks without replacement as the target area;

[0057] S03: Obtaining an average of pixel values ​​corresponding to the target area in each image captured by the X-ray imaging device at the target temperature, and using the average as the captured pixel D11 corresponding to the target area of ​​the X-ray imaging device at the target temperature;

[0058] S04: Repeat the above steps S02-S03 to obtain the shooting pixels D1j corresponding to each area block of the X-ray imaging device at the target temperature;

[0059] S05: Repeat the above steps S01-S04 to obtain the shooting pixels Daj corresponding to each area block of the X-ray imaging device at different preset temperatures;

[0060] By setting multiple preset temperatures, the pixels captured by the X-ray imaging device in each area at different preset temperatures are obtained to study the effect of temperature on pixel values.

[0061] The deviation value acquisition module establishes a pixel change curve at different preset temperatures based on the difference between the corresponding pixels of each area block at different preset temperatures and the standard pixel value of each area block, and analyzes each pixel change curve to obtain the deviation value corresponding to each pixel change curve at different preset temperatures. The specific method is as follows:

[0062] The captured pixel change curve establishing unit uses the region label of each region block as the abscissa and the difference between the captured pixels of each region block at different preset temperatures and the standard pixel value of each region block as the ordinate, thereby obtaining the coordinates of the data points corresponding to each region block at different preset temperatures, and plots the coordinates of each data point at the same preset temperature in the same coordinate system, thereby obtaining the captured pixel change curves at different preset temperatures. The specific method for obtaining the captured pixel change curves at different preset temperatures is as follows:

[0063] The data points of each area block at the same preset temperature are marked in the same two-dimensional coordinate system according to the corresponding data point coordinates, and the data points are connected in sequence from left to right to obtain the shooting pixel change curves at different preset temperatures;

[0064] The deviation value acquisition unit analyzes the coordinates of each data point constituting the pixel change curve at different preset temperatures to obtain the deviation values ​​corresponding to each pixel change curve at different preset temperatures. The specific method is as follows:

[0065] S11: selecting the same preset temperature as that in step S1 from a plurality of preset temperatures as a target temperature, and obtaining a pixel change curve of the target temperature as an analysis curve;

[0066] The coordinates of each data point in the analysis curve are marked as Ej (j, EYj) in sequence 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 captured pixel D11 of each area block at the target temperature and its corresponding standard pixel value, that is, EYj = D1j - Cj;

[0067] The line connecting each two adjacent data points in the analysis curve is used as the stage line, and the slope corresponding to each stage line of the analysis curve is calculated based on the coordinates of the two data points constituting the two end points of each stage line. The mean of each slope is used as the deviation value of the analysis curve. The specific method for obtaining the slope corresponding to each stage line of the analysis curve is as follows:

[0068] The slope Kr corresponding to each stage line is taken as the ratio of the absolute value of the difference between the ordinate of the data point corresponding to the latter end point and the ordinate of the data point corresponding to the former end point on each stage line and the absolute value of the difference between the corresponding area label j. The mean value Kp of Kr is taken as the deviation value H1 of the analysis curve at the target temperature, where r refers to different stage lines on the analysis curve, r=1, 2, ..., c2, where c2 refers to the number of stage lines on the analysis curve, c2 is a positive integer, c2=b-2;

[0069] It should be noted that the coordinate point of the first endpoint on the stage line refers to the data point closest to the origin among the two data points constituting the stage line, that is, the data point at the left endpoint of the stage line, and the second endpoint refers to the data point at the right endpoint of the stage line;

[0070] 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;

[0071] Based on the difference between the captured pixels and the standard pixel values ​​of each area block at different preset temperatures, a captured pixel change curve is established, and the deviation values ​​corresponding to each curve are analyzed to provide a data basis for determining the boundary value and upper limit value.

[0072] The boundary value and upper limit value acquisition module analyzes the deviation values ​​corresponding to the change curves of each shooting pixel at different preset temperatures, and obtains the boundary value and upper limit value corresponding to the X-ray imaging device based on the analysis results. The specific method is as follows:

[0073] Different preset temperatures are used as horizontal coordinates, and the deviation values ​​corresponding to the change curves of each shooting pixel at different preset temperatures are used as vertical coordinates, thereby obtaining each coordinate point WHa (Wa, Ha), and each coordinate point is marked in order from left to right according to the value of the preset temperature Wa, and each adjacent two coordinate points are connected in sequence, and the connecting line between each adjacent two coordinate points is used as an interval line, and based on the coordinates of the two coordinate points constituting the two end points of each interval line, the same calculation method as that for obtaining the inclination rate of each stage line is adopted to calculate the variation coefficient corresponding to each interval line, that is, the ratio of the absolute value of the difference between the vertical coordinate of the coordinate point corresponding to the latter end point on each interval line and the vertical coordinate of the coordinate point corresponding to the former end point and the absolute value of the difference between their corresponding horizontal coordinates, i.e., the corresponding preset temperature, as the variation coefficient corresponding to each interval line;

[0074] According to the variation coefficient analysis corresponding to each interval line, the corresponding boundary value and upper limit value of the X-ray imaging equipment are obtained;

[0075] The coefficient of variation corresponding to each interval line is marked as BHg, and the mean value BHp of BHg is obtained, where g refers to different interval lines, g=1, 2, ..., c3, where c3 refers to the number of interval lines, c3 is a positive integer, c3=c1-1;

[0076] The interval line with the largest absolute value of the variation coefficient BHg is marked as the upper limit interval line, and the preset temperature value of the horizontal coordinate of the coordinate point corresponding to the previous endpoint on the upper limit interval line is used as the upper limit value JA corresponding to the X-ray imaging device;

[0077] Compare the variation coefficients of each interval line with the mean value BHp of BHg in order from front to back until an interval line with a variation coefficient greater than the mean value BHp is obtained, and mark it as the boundary interval line. The preset temperature value corresponding to the horizontal coordinate of the coordinate point of the previous endpoint of the boundary interval line is used as the boundary value JB corresponding to the X-ray imaging device;

[0078] It should be noted that the coordinate point of the first endpoint on the boundary interval line refers to the coordinate point closer to the origin of the two coordinate points that make up the boundary interval line, that is, the coordinate point located at the left endpoint of the boundary interval line, and the coordinate point of the second endpoint refers to the coordinate point located at the right endpoint of the boundary interval line;

[0079] The limit value JB refers to the temperature value point at which the image quality of the image captured by the X-ray imaging device begins to deteriorate. It represents the critical point at which the image quality of the X-ray imaging device will be affected after the device temperature reaches the corresponding temperature. When the device temperature reaches the limit value JB, the image quality of the image captured by the X-ray imaging device begins to change significantly. It refers to the temperature value point at which the image quality of the image captured by the X-ray imaging device begins to deteriorate.

[0080] The upper limit is the maximum temperature the device can withstand. Exceeding this value may damage the device or cause severe image distortion.

[0081] The early warning module obtains the real-time operating temperature of the X-ray imaging equipment through the temperature sensor, and generates a shutdown reminder signal or a forced shutdown signal based on the real-time operating temperature. The specific method is as follows:

[0082] 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 impact limit value. If the operation continues, it will affect the quality of the captured image. 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 to avoid the operating temperature of the X-ray imaging device being too high, which may cause excessive deviation in the captured image.

[0083] The shutdown reminder signal is displayed on the device operation interface in a striking color and flashing manner, accompanied by a continuous high-decibel alarm to attract the operator's attention; generating a forced shutdown signal activates the power supply module of the device to start the cut-off preparation program and immediately cuts off the power supply of the device to implement a forced shutdown operation, avoiding damage to the device due to overheating and serious deviations in the captured images, thereby ensuring the safety of equipment operation and image quality.

[0084] Embodiment 2: As the embodiment 2 of the present invention, when this application is specifically implemented, compared with embodiment 1, the technical solution of this embodiment differs from embodiment 1 only in that this embodiment further includes an influence coefficient acquisition module;

[0085] The influence coefficient acquisition module analyzes the variation coefficients corresponding to each interval line between the boundary interval line and the upper limit interval line, and obtains the buffer area of ​​the X-ray imaging device and the influence coefficients corresponding to each buffer area according to the analysis results. The specific method is as follows:

[0086] 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;

[0087] 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;

[0088] 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 buffer zone of the device and the corresponding influence coefficients of each buffer zone are obtained, providing a basis for real-time correction.

[0089] Example 3: As Example 3 of the present invention, please refer to Figure 2 In the specific implementation of this application, compared with the first and second embodiments, the technical solution of this embodiment is to combine the solutions of the first and second embodiments. The difference between the technical solution of this embodiment and the first and second embodiments is that this embodiment also includes a real-time correction module;

[0090] The real-time correction module generates a stop reminder signal. If the operator does not stop the machine and continues to use it, the real-time correction processing of the captured image is performed based on the influence coefficients corresponding to each buffer zone of the X-ray imaging device. The specific method is as follows:

[0091] 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.

[0092] Analyze historical usage data of the X-ray imaging device to obtain an abnormal temperature limit value JB, which is the limit value corresponding to the point at which the image quality of the image captured by the X-ray imaging device begins to decline due to the device temperature. 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 inform the operator that the operating temperature of the X-ray imaging device has reached the impact limit value. If continued operation will affect the 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 area block in the captured image are corrected based on the real-time temperature of the device. Then, the pixel values ​​of each area block in the captured image are adjusted accordingly to achieve image correction and ensure 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 forced shutdown processing is performed to avoid the situation where the operating temperature of the X-ray imaging device is too high and the captured image deviation is too large. If the shutdown reminder signal is issued and the operator does not shut down the device, the captured image is corrected in real time based on the buffer zone influence coefficient corresponding to the real-time operating temperature of the device to ensure image quality to the greatest extent.

[0093] When the device temperature exceeds the limit value but does not reach the upper limit value, the captured image is corrected in real time according to the real-time temperature and influence coefficient to ensure image quality. This is to ensure the stable operation of X-ray imaging equipment under different temperature conditions, improve the reliability of the equipment and image quality, and avoid equipment damage and image distortion caused by excessive temperature.

[0094] Example 4: As Example 4 of the present invention, when this application is specifically implemented, compared with Example 1, Example 2 and Example 3, this Example differs from Example 1, Example 2 and Example 3 only in that this Example analyzes the case when the calculated limit value and upper limit value are the same value;

[0095] When the calculated limit value and upper limit value are the same, it means that the operating temperature range of the X-ray imaging equipment is extremely narrow, and there is almost no buffer space between the beginning of image quality degradation and the possibility of serious damage to the equipment or serious image distortion. At this time, the system will perform special processing on this special value to ensure the safe operation of the equipment and image quality. This value represents the extremely sensitive temperature point of the equipment operation. At this time, when the safety margin value Y1 before the real-time operating temperature of the equipment reaches this value, the early warning module generates a shutdown reminder signal and a forced shutdown pre-trigger signal. When the real-time operating temperature of the X-ray imaging equipment reaches this value, the forced shutdown operation is immediately executed;

[0096] The specific value of the safety margin value Y1 is formulated by relevant personnel based on actual needs. Here, the safety margin value Y is 5°C. The shutdown reminder signal is displayed on the equipment operation interface in a striking color and flashing manner, accompanied by a continuous high-decibel alarm sound to attract the operator's attention; the forced shutdown pre-trigger signal starts the cut-off preparation program of the equipment power module in advance. Once the equipment temperature reaches this special value, the equipment power is immediately cut off to achieve forced shutdown, avoiding damage to the equipment due to excessive temperature and serious deviation in the captured image.

[0097] Example 5: As Example 5 of the present invention, when this application is specifically implemented, compared with Example 1, Example 2, Example 3 and Example 4, the technical solution of this embodiment is to combine and implement the solutions of the above-mentioned Example 1, Example 2, Example 3 and Example 4.

[0098] The above formulas are all dimensionless and numerical calculations. The formulas are obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters and thresholds in the formulas are set by technicians in this field according to actual conditions.

[0099] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A high-power portable X-ray imaging equipment control system, characterized in that: include; A reference group setting module, which obtains multiple reference images and establishes a reference group; The standard pixel value acquisition module obtains the standard pixel values ​​corresponding to different area blocks according to the pixel values ​​corresponding to different reference images in each area block; A shooting pixel acquisition module analyzes the images shot at each preset temperature to obtain the shooting pixels of each area block at different preset temperatures; The deviation value acquisition module establishes a pixel change curve at different preset temperatures based on the pixel values ​​of each area block at different preset temperatures and the standard pixel values, and analyzes the curve to obtain the deviation values ​​corresponding to each pixel change curve at different preset temperatures; The boundary value and upper limit value acquisition module uses different preset temperatures as horizontal coordinates and the deviation values ​​corresponding to the change curves of each shooting pixel at different preset temperatures as vertical coordinates, thereby obtaining each coordinate point WHa (Wa, Ha), marking each coordinate point in order from left to right according to the value of the preset temperature Wa, connecting each two adjacent coordinate points in turn, and taking the line between each two adjacent coordinate points as the interval line, and according to the coordinates of the two coordinate points constituting the two end points of each interval line, taking the ratio of the absolute value of the difference between the vertical coordinates of the endpoints and the absolute value of the difference between the horizontal coordinates as the slope of each interval line, and taking each interval line as the slope of each interval line. The slope of each interval line is used as the variation coefficient BHg corresponding to each interval line, and the interval line with the largest absolute value of the variation coefficient BHg is marked as the upper limit interval line, where a refers to different preset temperatures, a=1, 2, ..., c1, where c1 refers to the number of preset temperatures, c1 is a positive integer; the variation coefficients of each interval line are compared with the mean value BHp of BHg in order from front to back, until an interval line with a variation coefficient greater than the mean value BHp is obtained, and it is marked as the boundary interval line, where g refers to different interval lines, g=1, 2, ..., c3, where c3 refers to the number of interval lines, c3 is a positive integer, c3=c1-1; The early warning module generates a shutdown reminder signal or a forced shutdown signal based on the real-time operating temperature of the X-ray imaging equipment; An influence coefficient acquisition module obtains each interval line between the boundary interval line and the upper limit interval line, uses the preset temperature value corresponding to the horizontal coordinate of the coordinate point of each interval line as the temperature interval corresponding to each interval line, uses each temperature interval as a buffer zone, uses the variation coefficient corresponding to each interval line between the boundary interval line and the upper limit interval line as the influence coefficient Gv corresponding to each buffer zone, and binds it to each buffer zone, where v refers to different buffer zones and is a positive integer; The real-time correction module performs corresponding correction processing on the pixel values ​​of each area block of the captured image according to the real-time operating temperature of the X-ray imaging equipment and the influence coefficients corresponding to each buffer zone when the operator does not perform the shutdown process after the shutdown reminder signal is generated, thereby realizing the correction of the captured image.

2. A high-power portable X-ray imaging equipment control system according to claim 1, characterized in that: The specific method of obtaining the standard pixel values ​​corresponding to different area blocks is: S1: Each reference image is evenly divided into multiple identical blocks, and one of the blocks is randomly selected without replacement as the analysis area; S2: Obtain pixel values ​​corresponding to different reference images in the analysis area and mark them as Bi respectively, and take the average of the maximum and minimum values ​​in Bi as the standard pixel value C1 corresponding to the analysis area; S3: Repeat the above steps S1-S2 to obtain the standard pixel values ​​Cj corresponding to different area blocks, where i refers to different reference images, j refers to different area blocks, and j is used as the area label, j=1, 2, ..., b, where b refers to the number of area blocks, b is a positive integer, b≥2.

3. A high-power portable X-ray imaging equipment control system according to claim 2, characterized in that: The specific method of obtaining the pixels captured by each area block at different preset temperatures is as follows: S01: Set multiple preset temperatures Wa, and randomly select one of the preset temperatures without replacement as the target temperature; S02: selecting the same area block as that in step S1 from the multiple area blocks without replacement as the target area; S03: Obtaining an average of pixel values ​​corresponding to the target area of ​​each image captured by the X-ray imaging device at the target temperature, and using the average as the captured pixel D11 corresponding to the target area 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 area block of the X-ray imaging device at the target temperature; S05: Repeat the above steps S01-S04 to obtain the shooting pixels Daj corresponding to each area block of the X-ray imaging device at different preset temperatures.

4. A high-power portable X-ray imaging equipment control system according to claim 3, characterized in that: The specific method of establishing the shooting pixel change curve under different preset temperatures is as follows: By using a pixel change curve establishment unit, the area label of each area block is used as the horizontal coordinate, and the difference between the captured pixels of each area block at different preset temperatures and the standard pixel value of each area block is used as the vertical coordinate, so as to obtain the data point coordinates corresponding to each area block at different preset temperatures. The data points of each area block at the same preset temperature are marked in the same two-dimensional coordinate system according to the corresponding data point coordinates, and the data points are connected in sequence from left to right, so as to obtain the pixel change curves at different preset temperatures.

5. The high-power portable X-ray imaging equipment control system according to claim 4, characterized in that: The specific method for obtaining the deviation values ​​corresponding to the change curves of each shooting pixel at different preset temperatures is as follows: S11: Using a deviation value acquisition unit, a preset temperature identical to that in step S1 is selected from a plurality of preset temperatures as a target temperature, and a pixel change curve at the target temperature is used as an analysis curve. The coordinates of each data point in the analysis curve are labeled Ej(j, EYj) in sequence according to the size of the region labels corresponding to each region block, where EYj is the difference between the captured pixel D11 of each region block at the target temperature and its corresponding standard pixel value. The line connecting each two adjacent data points in the analysis curve is used as a stage line, and the slope corresponding to each stage line of the analysis curve is calculated based on the coordinates of the two data points forming the two end points of each stage line. The average of the slopes is used 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 the change curves of each captured pixel at different preset temperatures.

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

7. The high-power portable X-ray imaging equipment control system according to claim 1, characterized in that: The specific method of obtaining the boundary value and upper limit value according to the upper limit interval line and the boundary interval line is: The preset temperature value of the horizontal coordinate in the coordinate point corresponding to the previous end point on the upper limit interval line is used as the upper limit value JA corresponding to the X-ray imaging device; the preset temperature value corresponding to the horizontal coordinate in the coordinate point of the previous end point on the boundary interval line is used 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.

8. The high-power portable X-ray imaging equipment control system according to claim 7, characterized in that: The specific method of performing the corresponding correction processing on the pixel values ​​of each area block of the captured image is as follows: When a shutdown reminder signal is generated and the operator does not shut down the device, the real-time operating temperature of the X-ray imaging device is obtained, and the influence coefficient of the corresponding interval of the real-time operating temperature is obtained from the influence coefficient Gv according to the real-time operating temperature. The influence coefficient is marked as the influence coefficient R, and the real-time pixel value of the real-time image of the X-ray imaging device in each area block is marked as Qj. The absolute value of the product of the influence coefficient R plus 1 and the real-time pixel value is marked as the correction pixel value corresponding to each area block, and the real-time pixel value of each area block is corrected according to the correction pixel value.

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