A CT detector module

Abstract

The present invention relates to the technical field of processing equipment, and in particular to a CT detector module, including a detection module, a signal processing base plate and a self-checking and analyzing module. The present invention detects the real-time status of the detection module and the signal processing base plate through the self-checking and analyzing module, and promptly responds to and warns of problems that may occur therein, and through the coordinated cooperation of an information acquisition unit, a region division unit and an analysis and judgment unit, analyzes the causes of problems that may occur therein, so as to determine whether there is an abnormality in the detector module and the possible causes of the abnormality, so as to reduce the possibility of abnormal scanning results due to the abnormality of the detector module, thereby causing major misjudgment, and sends different warning information to the outside world according to the corresponding analysis results, so as to assist relevant personnel in determining the required maintenance parts according to different warning information, thereby facilitating subsequent maintenance work and accelerating the maintenance process.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a CT detector module. Background Art

[0002] CT, or Computer Tomography, is a medical imaging technology that uses X-rays and computer processing technology to obtain the internal structure of an object. CT scanning can provide higher resolution images than traditional X-ray examinations because it can generate cross-sectional images and obtain images at multiple angles by rotating the scanner, thereby reconstructing the three-dimensional structure of the object.

[0003] The basic principle of CT scanning is to use an X-ray source to emit X-rays from multiple angles. These X-rays pass through the scanned body part. Some of the X-rays will be absorbed by the body, while the rest will pass through the body and generate signals on the CT detector. The CT detector rotates around the patient while collecting these signals. The signal collected by each CT detector depends on the intensity of the X-rays it receives, which in turn depends on the density and atomic number of the body part. The collected data is sent to a computer, which uses complex algorithms to analyze the data and reconstruct a cross-sectional image of the inside of the body.

[0004] CT detectors are usually composed of multiple detector modules. With the widespread application of CT scanning in the medical field, CT scanning results are becoming more and more important in medical diagnosis. Once the scanning results are wrong, it may lead to major errors in the judgment results, resulting in it being very different from the actual condition. Therefore, when a problem occurs with the CT scanning instrument, it is necessary to promptly overhaul the CT scanning instrument, and at the same time, it is necessary to regularly inspect the CT scanner to minimize the possibility of problems. However, most CT detector modules in existing CT scanning technologies do not have a self-checking function. When a problem occurs with the CT detector module, it cannot promptly warn the outside world, which can easily lead to relevant personnel making incorrect diagnoses based on the erroneous scanning results. In addition, most existing CTs can only detect abnormal problems through regular inspections. The long maintenance cycle leads to untimely repair of problems, which is not conducive to the normal operation of CT scanning instruments. Summary of the invention

[0005] To this end, the present invention provides a CT detector module to overcome the problem in the prior art that the maintenance cycle of the CT detector module is long, resulting in untimely repair of problems, which is not conducive to the normal operation of the CT scanning instrument.

[0006] To achieve the above object, the present invention provides a CT detector module, comprising:

[0007] A detection module for detecting X-ray photons and converting them into electrical signals;

[0008] A signal processing baseboard, connected to the detection module via a flexible circuit, for receiving and processing signals collected from the detection module;

[0009] A self-checking and analyzing module, connected to the detection module and the signal processing base board respectively, for real-time monitoring of the detection module and the signal processing base board;

[0010] The detection module includes a main detection module and a backup detection module, and both the main detection module and the backup detection module are connected to the same signal processing baseboard;

[0011] The self-check analysis module includes an information acquisition unit, a region division unit and an analysis and determination unit;

[0012] The information acquisition unit is used to acquire data information from the detection module and the signal processing baseboard;

[0013] The area division unit is used to divide the acquired data information according to the area of ​​the scintillator to obtain determination area information;

[0014] The analysis and determination unit is used to analyze and determine the acquired data information to determine whether there is an abnormality in the detection module.

[0015] Further, the area division unit includes a first division subunit, which is used to divide the scintillator into a number of determination areas of equal area according to the area size of the scintillator;

[0016] The second division subunit is used to divide the data information from the signal processing baseboard according to the plurality of determination areas, and divide it into a plurality of corresponding determination area information.

[0017] Furthermore, the self-checking and analyzing module includes a first determination unit, which is used to monitor the change process of each determination area information of the running main detection module, and record the unchanged existence time of the unchanged data information in each determination area information;

[0018] The first determination unit includes a first determination subunit and a first marking subunit;

[0019] The first determination subunit is used to determine the unchanged duration of the unchanged data information, and the first marking subunit is used to mark the determination area according to the determination result;

[0020] A preset judgment time is set in the self-check analysis module. If the unchanged data information in the area judgment information in the same judgment area has not changed for a period of time longer than the preset judgment time, the judgment area will be marked by the first marking subunit as an abnormal area to be determined, and the main detection module will be switched to the backup detection module to continue running.

[0021] Furthermore, the analysis and determination unit further includes a second determination unit for monitoring the data information in the control area;

[0022] It includes a second marking subunit for marking the area in the standby detection module corresponding to the abnormal area to be determined as a control area, and a second determination subunit for determining the data information of the control area;

[0023] If there is still unchanged data information in the data information at the control area, and the unchanged existence time of the unchanged data information is still greater than the preset determination time, the operation of the CT detector will be stopped and the first warning information will be sent to the outside.

[0024] Furthermore, the process of the second determination subunit determining the data information of the control area further includes:

[0025] If there is no unchanged data information in the data information of the control area or the existence time of the unchanged data information is not greater than the preset determination time, the abnormal area to be determined is marked as the abnormal area to be analyzed.

[0026] Further, the information acquisition unit includes a first acquisition subunit, which is used to acquire the unchanged data information corresponding to the abnormal area to be analyzed, and the analysis and determination unit also includes a first analysis subunit, which is used to analyze the unchanged data information corresponding to the abnormal area to be analyzed;

[0027] If the unchanged data information obtained through analysis is the same digital signal information, a second warning information is sent to the outside world.

[0028] Furthermore, the process of the first analyzing unit analyzing the unchanged data information corresponding to the abnormal area to be analyzed further includes:

[0029] If the unchanged data information obtained through analysis is no-signal information corresponding to when no digital signal is received, the abnormal area to be analyzed is marked as a secondary abnormal analysis area.

[0030] Further, the information acquisition unit further includes a second acquisition subunit, which is used to acquire the optical signal information at the detection module, and the analysis and determination unit further includes a second analysis subunit, which is used to analyze the optical signal information at the determination area corresponding to the secondary abnormal analysis area;

[0031] If the optical signal information from the secondary abnormal analysis area obtained through analysis is normal, a third warning information is sent to the outside.

[0032] Furthermore, the process in which the second analysis subunit analyzes the optical signal information at the determination area corresponding to the secondary abnormal analysis area further includes:

[0033] If the optical signal information from the secondary abnormal analysis area obtained through analysis is missing, a fourth warning information is sent to the outside world.

[0034] Furthermore, the detection module comprises:

[0035] Scintillators used to convert X-rays into visible light signals;

[0036] A photodiode array for converting the visible light signal emitted by the scintillator into an electrical signal;

[0037] An ADC chip for converting the electrical signal output by the photodiode array into a digital signal;

[0038] and a circuit board for mounting the scintillator, the photodiode array and the ADC chip.

[0039] Compared with the prior art, the beneficial effect of the present invention lies in that, through the provision of a backup detection module, when an abnormality occurs in the main module, the backup detection module can be quickly switched to to ensure the continuity and stability of the CT scan, and the real-time status of the detection module and the signal processing baseboard is detected through the self-check analysis module, so as to respond and warn of possible problems in a timely manner, and through the coordinated cooperation of the information acquisition unit, the area division unit and the analysis and judgment unit, the causes of the possible problems are analyzed and determined to determine whether there is an abnormality in the detector module and the possible causes of the abnormality, so as to reduce the possibility of subsequent abnormalities in the scanning results due to abnormalities in the detector module, thereby leading to major misjudgment, and sending different warning information to the outside world according to the corresponding analysis results, so as to assist relevant personnel in determining the required maintenance parts according to different warning information, thereby facilitating subsequent maintenance work, speeding up the maintenance process, and enabling it to resume normal work as soon as possible.

[0040] Furthermore, through the coordinated cooperation of the first division subunit and the second division subunit, the collected data information is finely divided, which improves the pertinence of data detection, lays the foundation for subsequent data analysis, and facilitates the subsequent positioning and viewing of abnormal parts.

[0041] In particular, the first determination subunit and the first marking subunit monitor and determine the data information in the running main detection module according to the preset determination time, so as to quickly determine the area where abnormalities may exist in the main detection module and mark it to facilitate subsequent analysis.

[0042] Furthermore, the data information in the control area is monitored in real time by the second determination unit to further verify the possible abnormal causes, and respond in time to whether it is necessary to stop the operation of the CT detector according to the verification result.

[0043] In particular, through the cooperation of the second determination subunit and the second marking subunit, the determination area of ​​the main detection module where an abnormality may exist is marked, which provides a basis for the subsequent analysis process of the abnormal cause of the abnormality.

[0044] Furthermore, the first acquisition subunit and the first analysis subunit analyze whether the abnormal area to be analyzed is the abnormal cause represented by the second warning information, so as to determine whether it is a secondary abnormal analysis area that needs further analysis.

[0045] In particular, the second acquisition subunit and the second analysis subunit analyze the received optical signal information from the secondary abnormal analysis area to determine the possible abnormal cause in the secondary abnormal analysis area that needs detailed analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a framework diagram of the CT detector module of this embodiment;

[0047] Figure 2 Schematic diagram of the structure of the self-checking analysis module in this embodiment;

[0048] Figure 3 This is a schematic diagram of the structure of the area division unit in the self-checking and analyzing module of this embodiment;

[0049] Figure 4 Schematic diagram of the structure of the analysis and determination unit in the self-check analysis module of this embodiment;

[0050] Figure 5 Schematic diagram of the overall structure of the detection module of this embodiment. DETAILED DESCRIPTION

[0051] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0052] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0053] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0054] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] See also Figure 1 and Figure 2 ,like Figure 1 and Figure 2 As shown, Figure 1 is a framework diagram of the CT detector module of this embodiment, Figure 2 Schematic diagram of the structure of the self-checking analysis module in this embodiment;

[0056] Specifically, this embodiment provides a CT detector module, including:

[0057] A detection module for detecting X-ray photons and converting them into electrical signals;

[0058] A signal processing baseboard, connected to the detection module via a flexible circuit, for receiving and processing signals collected from the detection module;

[0059] A self-checking and analyzing module, connected to the detection module and the signal processing base board respectively, for real-time monitoring of the detection module and the signal processing base board;

[0060] The detection module includes a main detection module and a backup detection module, and both the main detection module and the backup detection module are connected to the same signal processing baseboard;

[0061] The self-check analysis module includes an information acquisition unit, a region division unit and an analysis and determination unit;

[0062] The information acquisition unit is used to acquire data information from the detection module and the signal processing baseboard;

[0063] The area division unit is used to divide the acquired data information according to the area of ​​the scintillator to obtain determination area information;

[0064] The analysis and determination unit is used to analyze and determine the acquired data information to determine whether there is an abnormality in the detection module.

[0065] By setting up a backup detection module, when an abnormality occurs in the main module, it can quickly switch to the backup detection module to ensure the continuity and stability of the CT scan. The real-time status of the detection module and the signal processing baseboard is detected through the self-check analysis module, so as to respond and warn of possible problems in time. Through the coordinated cooperation of the information acquisition unit, the area division unit and the analysis and judgment unit, the causes of the possible problems are analyzed and determined to determine whether there is an abnormality in the detector module and the possible causes of the abnormality, so as to reduce the possibility of subsequent abnormal scanning results due to abnormalities in the detector module, which in turn leads to major misjudgment. Different warning information is sent to the outside world according to the corresponding analysis results to assist relevant personnel in determining the required maintenance parts according to different warning information, thereby facilitating subsequent maintenance work, speeding up the maintenance process, and enabling it to resume normal work as soon as possible.

[0066] Please continue reading Figure 3 ,like Figure 3 As shown, it is a schematic diagram of the structure of the area division unit in the self-check analysis module of this embodiment;

[0067] Specifically, the region division unit includes a first division subunit, which is used to divide the scintillator into a number of determination regions of equal area according to the area size of the scintillator;

[0068] The second division subunit is used to divide the data information from the signal processing baseboard according to the plurality of determination areas, and divide it into a plurality of corresponding determination area information.

[0069] Through the coordinated cooperation of the first division subunit and the second division subunit, the collected data information is finely divided, which improves the pertinence of data detection, lays the foundation for subsequent data analysis, and facilitates the subsequent positioning and viewing of abnormal parts.

[0070] Please continue reading Figure 4 ,like Figure 4 As shown, it is a schematic diagram of the structure of the analysis and determination unit in the self-check analysis module of this embodiment;

[0071] Specifically, the self-checking and analyzing module includes a first determination unit, which is used to monitor the change process of each determination area information of the running main detection module, and record the unchanged existence time of the unchanged data information in each determination area information;

[0072] The first determination unit includes a first determination subunit and a first marking subunit;

[0073] The first determination subunit is used to determine the unchanged duration of the unchanged data information, and the first marking subunit is used to mark the determination area according to the determination result;

[0074] A preset judgment time is set in the self-check analysis module. If the unchanged data information in the area judgment information in the same judgment area has not changed for a period of time longer than the preset judgment time, the judgment area will be marked by the first marking subunit as an abnormal area to be determined, and the main detection module will be switched to the backup detection module to continue running.

[0075] In this embodiment, the unchanged data information is data information that has not changed in a period of time in the determination area information within the same determination area collected by the information collection unit, and the unchanged existence duration is the duration that the unchanged data remains unchanged each time when the data has not changed.

[0076] The selected preset judgment time should be selected based on the patient's height, the rotation speed of the CT detector when it is in operation, and the propulsion speed when scanning the human body. The preset judgment time should be longer than the maximum existence time of unchanged data information that may appear in each judgment area of ​​the detection module when the CT detector is operating normally. In the general CT scanning process, the situation where unchanged data may appear in each judgment area of ​​the detection module is the idle rotation time before the rays emitted by the X-ray source scan the human body and after the rays have scanned the human body, that is, when the relative position between the X-ray source and each judgment area in the detection module remains unchanged. When the X-rays emitted by the X-ray source and the X-rays received by the detector are in the same direction, the time when the signal received by the detector will reach the maximum value. In the actual scanning process, due to the influence of the scanning advancement speed and the high-speed rotation of the X-ray source itself and the detection module itself in the CT detector, the duration of unchanged data is generally within a few hundred microseconds. However, in order to increase the objectivity and accuracy of the judgment, the selected preset judgment time should be greater than 1 second. However, in order to avoid a significant impact on subsequent scanning results due to too long a time, the selected preset judgment time should not be greater than 3 seconds. Therefore, in this embodiment, 1 second can be selected as the preset judgment time.

[0077] The first determination subunit and the first marking subunit monitor and determine the data information in the running main detection module according to the preset determination time, so as to quickly determine the areas in the main detection module where abnormalities may exist, and mark them to facilitate subsequent analysis.

[0078] Specifically, the analysis and determination unit further includes a second determination unit for monitoring data information in the control area;

[0079] It includes a second marking subunit for marking the area in the standby detection module corresponding to the abnormal area to be determined as a control area, and a second determination subunit for determining the data information of the control area;

[0080] If there is still unchanged data information in the data information at the control area, and the unchanged existence time of the unchanged data information is still greater than the preset determination time, the operation of the CT detector will be stopped and the first warning information will be sent to the outside.

[0081] In this embodiment, the first warning information means that an abnormality may occur in the signal processing baseboard, that is, when there is unchanged data information greater than a preset judgment time in the corresponding judgment areas in the main detection module and the backup detection module, it means that there may be an abnormal situation that can affect the data information of the main detection module and the backup detection module at the same time, that is, it means that an abnormality may occur in the signal processing baseboard connected to the main detection module and the backup detection module at the same time, and the scanning operation of the CT detector should be stopped immediately to avoid the possibility of major misjudgment due to abnormal scanning results in the future, and a warning should be issued to the outside world to remind outside personnel to repair it in time. At the same time, according to different warning information, relevant personnel are assisted to determine the required maintenance parts to assist the maintenance work of outside personnel and speed up their maintenance process.

[0082] The data information in the control area is monitored in real time by the second determination unit to further verify the possible abnormal causes, and respond in time to whether it is necessary to stop the operation of the CT detector according to the verification results.

[0083] Specifically, the process of the second determination subunit determining the data information of the control area also includes:

[0084] If there is no unchanged data information in the data information of the control area or the existence time of the unchanged data information is not greater than the preset determination time, the abnormal area to be determined is marked as the abnormal area to be analyzed.

[0085] That is, when only the main detection module contains unchanged data information that is longer than the preset judgment time and the backup detection module does not exist, it means that an abnormality may occur in a certain part of the main detection module itself, resulting in abnormality in the data information received by the signal processing baseboard. Therefore, it is necessary to conduct a detailed analysis of the judgment area corresponding to the part where the unchanged data information appears to determine the possible abnormality.

[0086] Through the cooperation of the second determination subunit and the second marking subunit, the determination area of ​​the main detection module where an abnormality may exist is marked, which provides a basis for the subsequent analysis process of the abnormal cause of the abnormality where an abnormality may exist.

[0087] Specifically, the information acquisition unit includes a first acquisition subunit, which is used to acquire the unchanged data information corresponding to the abnormal area to be analyzed, and the analysis and determination unit also includes a first analysis subunit, which is used to analyze the unchanged data information corresponding to the abnormal area to be analyzed;

[0088] If the unchanged data information obtained through analysis is the same digital signal information, a second warning information is sent to the outside world.

[0089] In this embodiment, the second warning information means that the ADC chip may be abnormal;

[0090] That is, when the unchanged data information is the same digital signal information, the ADC chip corresponding to the current judgment area and used to convert the electrical signal output by the photodiode array into a digital signal can receive the electrical signal output by the photodiode array, but the digital signal information it outputs is abnormal, which means that the scintillator used to convert X-rays into visible light signals and the photodiode array used to convert the visible light signals emitted by the scintillator into electrical signals can both work normally, but the ADC chip used to convert electrical signals into digital signals and transmit the digital signals to the signal processing baseboard may have an abnormality, which causes the digital signals it outputs to be the same digital signal. Therefore, it is used as the second warning information to warn the outside world to remind outside personnel to repair it in time.

[0091] Specifically, the process of the first analyzing unit analyzing the unchanged data information corresponding to the abnormal area to be analyzed also includes:

[0092] If the unchanged data information obtained through analysis is no-signal information corresponding to when no digital signal is received, the abnormal area to be analyzed is marked as a secondary abnormal analysis area.

[0093] That is, when the unchanged data information is no-signal information, the ADC chip corresponding to the current determination area and used to convert the electrical signal output by the photodiode array into a digital signal may not receive the electrical signal from the photodiode, resulting in it being unable to send the converted digital signal to the signal processing backplane. As a result, the analyzed unchanged data information from the signal processing backplane is no-signal information. Therefore, it is necessary to further analyze the cause of the ADC chip not receiving the electrical signal from the photodiode in order to determine the possible abnormality.

[0094] The first acquisition subunit and the first analysis subunit analyze whether the abnormal area to be analyzed is the abnormal cause represented by the second warning information, so as to determine whether it is a secondary abnormal analysis area that needs further analysis.

[0095] Specifically, the information acquisition unit further includes a second acquisition subunit, which is used to acquire the optical signal information at the detection module, and the analysis and determination unit further includes a second analysis subunit, which is used to analyze the optical signal information at the determination area corresponding to the secondary abnormal analysis area;

[0096] If the optical signal information from the secondary abnormal analysis area obtained through analysis is normal, a third warning information is sent to the outside.

[0097] In this embodiment, the third warning information means that the ADC chip may be abnormal;

[0098] That is, when the unchanged data information is no-signal information and further analysis is needed on the cause of the ADC chip's failure to receive the electrical signal from the photodiode, if the optical signal information received in the secondary abnormal analysis area obtained by the analysis is normal, it means that the scintillator used to convert X-rays into visible light signals normally receives and converts X-rays, that is, it means that there is no abnormality in the scintillator. Therefore, it is possible that an abnormality occurs at the photodiode array used to convert the visible light signal emitted by the scintillator into an electrical signal, resulting in the inability to normally convert the visible light signal from the scintillator into a corresponding electrical signal, thereby resulting in the ADC chip being unable to normally receive the electrical signal from the photodiode. Therefore, it is used as the third warning information to warn the outside world to remind outside personnel to repair it in time.

[0099] Specifically, the process in which the second analysis subunit analyzes the optical signal information at the determination area corresponding to the secondary abnormal analysis area also includes:

[0100] If the optical signal information from the secondary abnormal analysis area obtained through analysis is missing, a fourth warning information is sent to the outside world.

[0101] In this embodiment, the fourth warning information means that the scintillator may be abnormal;

[0102] That is, when the unchanged data information is no-signal information and further analysis is needed on the cause of the ADC chip not receiving the electrical signal from the photodiode, if the optical signal information obtained from the analysis at the secondary abnormal analysis area is missing, it means that the scintillator used to convert X-rays into visible light signals is not able to receive and convert X-rays normally, which means that the scintillator may be abnormal, resulting in the photodiode array used to convert the visible light signal emitted by the scintillator into an electrical signal being unable to transmit the corresponding electrical signal information to the ADC chip, thereby resulting in the ADC chip being unable to receive the electrical signal from the photodiode normally. Therefore, it is used as the fourth warning information to warn the outside world to remind outside personnel to repair it in time.

[0103] The second acquisition subunit and the second analysis subunit analyze the received optical signal information from the secondary abnormal analysis area to determine the possible abnormal cause in the secondary abnormal analysis area that needs detailed analysis.

[0104] Please continue reading Figure 5 ,like Figure 5As shown, it is a schematic diagram of the overall structure of the detection module of this embodiment;

[0105] Specifically, the detection module includes:

[0106] A scintillator 1 for converting X-rays into visible light signals;

[0107] A photodiode array 2 for converting the visible light signal emitted by the scintillator into an electrical signal;

[0108] An ADC chip 3 for converting the electrical signal output by the photodiode array into a digital signal for subsequent digital signal processing and image reconstruction;

[0109] And a circuit board 4 for mounting the scintillator, the photodiode array and the ADC chip.

[0110] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A CT detector module, characterized in that: include, A detection module for detecting X-ray photons and converting them into electrical signals; A signal processing baseboard, connected to the detection module via a flexible circuit, for receiving and processing signals collected from the detection module; A self-checking and analyzing module, connected to the detection module and the signal processing base board respectively, for real-time monitoring of the detection module and the signal processing base board; The detection module includes a main detection module and a backup detection module, and both the main detection module and the backup detection module are connected to the same signal processing baseboard; The self-check analysis module includes an information acquisition unit, a region division unit and an analysis and determination unit; The information acquisition unit is used to acquire data information from the detection module and the signal processing baseboard; The area division unit is used to divide the acquired data information according to the area of ​​the scintillator to obtain determination area information; The analysis and determination unit is used to analyze and determine the acquired data information to determine whether there is an abnormality in the detection module; The analysis and determination unit includes a first determination unit, which is used to monitor the change process of each determination area information of the running main detection module, and record the unchanged existence time of the unchanged data information in each determination area information; The first determination unit includes a first determination subunit and a first marking subunit; The first determination subunit is used to determine the unchanged duration of the unchanged data information, and the first marking subunit is used to mark the determination area according to the determination result; A preset judgment time is set in the self-check analysis module. If the unchanged data information in the judgment area information within the same judgment area remains unchanged for a period longer than the preset judgment time, the judgment area will be marked by the first marking subunit as an abnormal area to be determined, and the main detection module will be switched to the backup detection module to continue running.

2. The CT detector module according to claim 1, characterized in that: The detection module comprises: Scintillators used to convert X-rays into visible light signals; A photodiode array for converting the visible light signal emitted by the scintillator into an electrical signal; An ADC chip for converting the electrical signal output by the photodiode array into a digital signal; and a circuit board for mounting the scintillator, the photodiode array and the ADC chip.

3. The CT detector module according to claim 2, characterized in that: The area division unit includes a first division subunit, which is used to divide the scintillator into a plurality of determination areas of equal area according to the area size of the scintillator; The second division subunit is used to divide the data information from the signal processing baseboard according to the plurality of determination areas, and divide it into a plurality of corresponding determination area information.

4. The CT detector module according to claim 2, characterized in that: The analysis and determination unit also includes a second determination unit for monitoring the data information in the control area; It includes a second marking subunit for marking the area in the standby detection module corresponding to the abnormal area to be determined as a control area, and a second determination subunit for determining the data information of the control area; If there is still unchanged data information in the data information in the control area, and the unchanged existence time of the unchanged data information is still greater than the preset judgment time, the operation of the CT detector module will be stopped and the first warning information will be sent to the outside world. The first warning information indicates that an abnormality may occur in the signal processing baseboard.

5. The CT detector module according to claim 4, characterized in that: The process in which the second determination subunit determines the data information of the control area also includes: If there is no unchanged data information in the data information of the control area or the existence time of the unchanged data information is not greater than the preset determination time, the abnormal area to be determined is marked as the abnormal area to be analyzed.

6. The CT detector module according to claim 5, characterized in that: The information acquisition unit includes a first acquisition subunit, which is used to acquire the unchanged data information corresponding to the abnormal area to be analyzed, and the analysis and determination unit also includes a first analysis subunit, which is used to analyze the unchanged data information corresponding to the abnormal area to be analyzed; If the unchanged data information obtained through analysis is the same digital signal information, a second warning information is sent to the outside world, and the second warning information indicates that an abnormality may occur in the ADC chip.

7. The CT detector module according to claim 6, characterized in that: The process in which the first analyzing subunit analyzes the unchanged data information corresponding to the abnormal area to be analyzed also includes: If the unchanged data information obtained through analysis is no-signal information corresponding to when no digital signal is received, the abnormal area to be analyzed is marked as a secondary abnormal analysis area.

8. The CT detector module according to claim 7, characterized in that: The information acquisition unit further includes a second acquisition subunit, which is used to acquire the optical signal information at the detection module, and the analysis and determination unit further includes a second analysis subunit, which is used to analyze the optical signal information at the determination area corresponding to the secondary abnormal analysis area; If the optical signal information from the secondary abnormal analysis area obtained through analysis is normal, a third warning information is sent to the outside, and the third warning information indicates that an abnormality may occur in the ADC chip.

9. The CT detector module according to claim 8, characterized in that: The process in which the second analysis subunit analyzes the optical signal information at the determination area corresponding to the secondary abnormal analysis area also includes: If the optical signal information from the secondary abnormal analysis area obtained by analysis is missing, a fourth warning message is sent to the outside world, and the fourth warning message represents that the scintillator may be abnormal.

Images