Voltage regulation method and device for a probe, probe system and storage medium

Abstract

The application relates to a voltage adjustment method and device of a detector, a detector system and a storage medium, wherein the voltage adjustment method of the detector comprises the following steps: acquiring an actual input voltage of a detector input end; adjusting a power supply voltage of the detector based on the actual input voltage and a preset voltage to obtain a target power supply voltage after adjustment; and transmitting the target power supply voltage to the input end of the detector. Through the application, the problem of low detector performance is solved, and the stability of the detector in the operation process is improved.

Description

Technical Field

[0001] This application relates to the field of detector control technology, and in particular to a voltage regulation method, apparatus, detector system, and storage medium for a detector. Background Technology

[0002] Computed tomography (CT) scanners are increasingly used in the examination of various diseases because they can quickly obtain clear images of the body's internal condition. A CT scanner generally consists of a radiation source and a detector. The radiation source emits radiation that passes through the area to be examined and is received by the detector, which then processes the received radiation to generate scan information.

[0003] During the scanning process, a computed tomography (CT) scanner scans different areas of the patient, such as bones, muscles, and lungs. Because these areas have varying densities and absorb radiation differently, the radiation dose received by the detector differs. In other words, the higher the density of the area, the stronger its absorption, resulting in a lower radiation dose. Therefore, the radiation dose received by the detector fluctuates significantly during scanning of different areas, leading to variations in power and current consumption when processing different doses of radiation. Currently, CT scanners continuously supply the detector with the same voltage. However, the detector consumes varying amounts of power and current during operation, and the power supply circuit contains resistances such as wiring resistance and contact resistance, causing significant variations in the voltage reaching the detector's input. In severe cases, the input voltage may deviate from the required voltage, affecting the detector's performance.

[0004] There is currently no effective solution to the problem of low detector performance during the operation of computed tomography (CT) scanners in related technologies. Summary of the Invention

[0005] This embodiment provides a voltage regulation method, apparatus, detector system, and storage medium for a detector, in order to solve the problem of low detector performance in related technologies.

[0006] Firstly, this embodiment provides a method for adjusting the voltage of a detector, comprising:

[0007] Obtain the actual input voltage at the detector input terminal;

[0008] Based on the actual input voltage and the preset voltage, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage;

[0009] The target power supply voltage is transmitted to the input terminal of the detector.

[0010] In some embodiments, adjusting the power supply voltage of the detector based on the actual input voltage and a preset voltage to obtain the adjusted target power supply voltage includes:

[0011] The actual input voltage is compared with the preset voltage to obtain the comparison result;

[0012] Based on the comparison results, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage.

[0013] In some embodiments, adjusting the power supply voltage of the detector based on the comparison result to obtain the adjusted target power supply voltage includes:

[0014] If the comparison result shows that the actual input voltage is less than the preset voltage, then the power supply voltage of the detector is increased to obtain the adjusted target power supply voltage;

[0015] If the comparison result shows that the actual input voltage is greater than the preset voltage, then the power supply voltage of the detector is reduced to obtain the adjusted target power supply voltage.

[0016] In some embodiments, obtaining the actual input voltage at the detector input terminal includes:

[0017] Collect the power supply pin voltage of the detector;

[0018] The voltage at the power supply pin is filtered to obtain the actual input voltage.

[0019] In some embodiments, transmitting the target supply voltage to the input of the detector includes:

[0020] The target power supply voltage is transmitted to the input terminal of the detector through the power supply circuit.

[0021] In some embodiments, after transmitting the target supply voltage to the input of the detector, the method further includes:

[0022] The radiation dose received by the detector is determined based on the actual input voltage and the target power supply voltage.

[0023] Based on the radiation dose and the target power supply voltage, the mapping relationship between the detector's power supply voltage and the received radiation dose is determined.

[0024] Secondly, this embodiment provides a voltage regulation device for a detector, comprising:

[0025] The acquisition module is used to acquire the actual input voltage at the detector input terminal;

[0026] The voltage adjustment module is used to adjust the power supply voltage of the detector based on the actual input voltage and the preset voltage to obtain the adjusted target power supply voltage.

[0027] A voltage transmission module is used to transmit the target power supply voltage to the input terminal of the detector.

[0028] Thirdly, this embodiment provides a detector system, including: a detector, a power supply circuit, a power supply device for the detector, and a voltage regulation device for the detector;

[0029] The power supply device is connected to the input terminal of the detector through the power supply circuit, and is used to supply power to the detector through the power supply circuit;

[0030] The voltage regulation device is connected to the input terminal of the detector and the power supply device respectively, and is used to perform the voltage regulation method of the detector described in the first aspect above.

[0031] In some embodiments, the voltage regulation device includes a controller, a filter, and a signal converter;

[0032] The input terminal of the filter is connected to the input terminal of the detector, and the output terminal of the filter is connected to the input terminal of the signal converter. The filter is used to filter the pin voltage of the input terminal of the detector to obtain the filtered voltage, and transmit the filtered voltage to the input terminal of the signal converter.

[0033] The output terminal of the signal converter is connected to the controller. The signal converter is used to convert the filtered voltage into a digital signal and transmit the digital signal to the controller.

[0034] The controller is connected to the power supply circuit and is used to execute the voltage regulation method of the detector described in the first aspect above.

[0035] Fourthly, this embodiment provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the voltage regulation method for the detector described in the first aspect above.

[0036] Compared with related technologies, the voltage regulation of the detector provided in this embodiment adjusts the power supply voltage of the detector by comparing the actual input voltage at the detector input terminal with the preset voltage. This allows the power supply voltage of the detector to be adaptively adjusted according to the actual power and current consumed by the detector during operation, thereby ensuring that the voltage at the detector input terminal is relatively stable. This avoids the problem of low detector performance caused by different power and current consumption during operation, and improves the stability of the detector during operation through feedback regulation.

[0037] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0039] Figure 1 This is a schematic diagram of a power supply structure for a detector in the prior art, provided in an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the power supply structure of a detector provided in an embodiment of this application;

[0041] Figure 3 This is a flowchart of a detector voltage adjustment method provided in an embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the structure of a detector system provided in an embodiment of this application;

[0043] Figure 5 This is a flowchart of an embodiment of a voltage regulation method for a detector provided in this application.

[0044] Figure 6 This is a structural block diagram of a voltage regulation device for a detector provided in an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0046] To better understand the purpose, technical solution, and advantages of this application, the application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0047] Unless otherwise defined, the technical or scientific terms used in this application shall have the general meaning as understood by one of ordinary skill in the art to which this application pertains. Words such as “a,” “an,” “an,” “the,” “the,” and “these,” used in this application, do not indicate quantitative limitation and may be singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or modules (units) is not limited to the listed steps or modules (units) but may include steps or modules (units) not listed, or may include other steps or modules (units) inherent to such processes, methods, products, or devices. The terms “connected,” “linked,” and “coupled,” used in this application, are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. The term “multiple” used in this application refers to two or more. The "and / or" operator describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: A alone, A and B simultaneously, and B alone. Typically, the character " / " indicates that the objects before and after it are in an "or" relationship. The terms "first," "second," and "third," etc., used in this application are merely for distinguishing similar objects and do not represent a specific ordering of the objects.

[0048] Computed tomography (CT) scanners are increasingly used in the examination of various diseases because they can quickly obtain clear images of the body's internal condition. A CT scanner generally consists of a radiation source and a detector. The radiation source emits radiation that passes through the area to be examined and is received by the detector, which then processes the received radiation to generate scan information.

[0049] During the scanning process, a computed tomography (CT) scanner scans different areas of the patient, such as bones, muscles, and lungs. Because these areas have varying densities and absorb radiation differently, the amount of radiation received by the detector differs. In other words, the higher the density of the area, the stronger its absorption capacity, resulting in a lower radiation dose received by the detector. Therefore, the radiation dose received by the detector fluctuates significantly during the scanning process, leading to variations in the power or current consumed by the detector when processing different doses of radiation.

[0050] Currently, when powering the detector in a computed tomography (CT) scanner, the same voltage is continuously input to the detector. However, the detector consumes different amounts of power and current during operation. Furthermore, the power supply circuit of the detector contains resistances, such as wiring resistance and contact resistance, which causes significant variations in the voltage reaching the detector's input terminal. In severe cases, the voltage at the detector's input terminal may deviate from its required voltage, thereby affecting the detector's performance.

[0051] Figure 1 This is a schematic diagram of a power supply structure for a detector in the prior art, provided in an embodiment of this application. Figure 1 As shown, the power supply transmits voltage to the power supply pin of the detector through the power supply circuit resistor, thereby powering the detector, which includes a detector crystal and a detector chip.

[0052] In current computed tomography (CT) machines, detectors are generally classified into two types: photo-counting detectors (PCDs) and traditional energy-intergating detectors (EIDs).

[0053] In EIDs (Electro-Induced Photons), incident X-ray photons interact with a scintillator in the detector to generate fluorescence. This fluorescence is then transported to a photoelectric conversion device, such as a photodiode. In the photoelectric conversion device, the fluorescence undergoes a photoelectric effect, generating charge carriers. These charge carriers drift towards both ends of the detector due to the Coulomb force of the electric field, simultaneously generating induced charges. The induced charge signal is fed to the detector chip for processing. Typically, in the detector chip of an EID, the induced charges are accumulated within a pre-set integration time, and the charge signal is amplified and sampled. In actual use, when a CT scanner scans from denser bone structures to less dense structures such as muscles or organs like the lungs, the number or dose of X-ray photons absorbed by the body and then incident on the CT detector changes drastically due to the different absorption rates of X-rays at different locations. Therefore, the power consumption or current consumption of EIDs will vary during actual use. Providing a fixed power supply voltage during actual use can easily affect the performance of the detector.

[0054] In PCDs, X-rays directly interact with the photoelectric conversion device and are converted into electrical signals; that is, photons are directly detected. In contrast, EIDs do not involve the conversion of X-rays into fluorescence within the scintillator. Both PCDs and EIDs employ pixel array detectors that exhibit a charge-sharing effect, where charge carriers generated by the interaction of an incident X-ray photon within the detector can diffuse to adjacent pixels. EIDs process the accumulated charge over the integration time; regardless of how charge carriers generated by the X-ray photon diffuse to adjacent pixels, the total charge remains essentially constant. In other words, the power of EIDs is only related to the dose of the incident X-ray photon. In contrast, the processing chip in PCDs only processes signals exceeding a trigger threshold. Due to the charge-sharing effect, the charge carriers generated by a photon diffuse to adjacent pixels, causing the signals generated by these adjacent pixels to exceed the trigger threshold of the PCD detector chip. This triggers internal circuits such as counters, comparators, and analog-to-digital converters, ultimately causing the current consumption of the PCD to increase exponentially. Its voltage and current dynamic range is also larger than that of EIDs. If the power supply maintains the same supply voltage, the distributed resistance in the power supply circuit, such as trace resistance and contact resistance, will cause significant variations in the voltage reaching the detector chip's input. In severe cases, the voltage at the detector chip's input may deviate from its required voltage, thus affecting the chip's performance.

[0055] Therefore, improving the performance of detectors in computed tomography (CT) scanners is a problem that needs to be solved.

[0056] This application provides a method for adjusting the voltage of a detector, which can be applied to... Figure 2 In the voltage regulating device shown, Figure 2 This is a schematic diagram of the power supply structure of a detector provided in an embodiment of this application.

[0057] Figure 3 This is a flowchart of a detector voltage adjustment method provided in an embodiment of this application, as shown below. Figure 3 As shown, the process includes the following steps:

[0058] Step S301: Obtain the actual input voltage at the detector input terminal.

[0059] Step S302: Based on the actual input voltage and the preset voltage, adjust the power supply voltage of the detector to obtain the adjusted target power supply voltage.

[0060] Step S303: Transmit the target power supply voltage to the input terminal of the detector.

[0061] For example, the voltage regulation device obtains the actual input voltage at the detector input terminal. Specifically, the actual input voltage may refer to the voltage at the detector power supply pin.

[0062] Furthermore, based on the difference between the actual input voltage and the preset voltage, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage. This makes the voltage output by the voltage regulating device the target power supply voltage. Furthermore, the target power supply voltage is transmitted to the input terminal of the detector, that is, to the power supply pin of the detector, so that in practical applications, the voltage of the power supply pin of the detector is stabilized to the preset voltage.

[0063] It should be noted that the preset voltage can be determined according to the type of detector chip. Specifically, different types of detector chips require different power supply voltages. Therefore, the power supply voltage required by the detector chip can be set as the preset voltage. The power supply voltage required by the detector chip is also the expected voltage when the detector chip is working. More specifically, the power supply voltage required by the detector chip can be obtained from the detector chip's user manual.

[0064] In the above implementation process, the power supply voltage of the detector is adjusted according to the magnitude of the actual input voltage at the detector input terminal and the preset voltage. This allows the power supply voltage of the detector to be adaptively adjusted according to the actual power and current consumed by the detector during operation, thereby ensuring that the voltage at the detector input terminal is relatively stable. This avoids the problem of low detector performance caused by different power and current consumption during operation. The stability of the detector during operation is improved through feedback adjustment.

[0065] In some embodiments, the power supply voltage of the detector is adjusted based on the actual input voltage and a preset voltage to obtain the adjusted target power supply voltage, including:

[0066] Step 1: Compare the actual input voltage with the preset voltage to obtain the comparison result.

[0067] Step 2: Adjust the power supply voltage of the detector based on the comparison results to obtain the adjusted target power supply voltage.

[0068] For example, the actual input voltage is compared with a preset voltage to obtain a comparison result, wherein the comparison result includes any one of the following: the actual input voltage is greater than the preset voltage, the actual input voltage is less than the preset voltage, or the actual input voltage is equal to the preset voltage.

[0069] Furthermore, the power supply voltage of the detector is adjusted based on the comparison results to obtain the adjusted target power supply voltage.

[0070] In the above implementation process, the power supply voltage of the detector is adjusted according to the comparison result between the actual input voltage and the preset voltage, so that the voltage after the adjusted target power supply voltage is transmitted to the input terminal of the detector is equal to the preset voltage, thus avoiding the problem of unstable operation of the detector caused by the influence of the power supply circuit.

[0071] In some embodiments, the power supply voltage of the detector is adjusted based on the comparison results to obtain the adjusted target power supply voltage, including:

[0072] If the comparison result shows that the actual input voltage is less than the preset voltage, the power supply voltage of the detector is increased to obtain the adjusted target power supply voltage.

[0073] If the comparison result shows that the actual input voltage is greater than the preset voltage, then the power supply voltage of the detector is reduced to obtain the adjusted target power supply voltage.

[0074] For example, when the actual input voltage is less than the preset voltage, it means that the current consumed by the detector has increased, causing the voltage consumed in the power supply circuit to be too high. As a result, the voltage transmitted to the detector input terminal cannot meet the normal operation of the detector. Therefore, it is necessary to increase the power supply voltage of the detector. That is, the output voltage of the power supply can be increased so that the adjusted target power supply voltage transmitted to the detector input terminal can meet the normal operation of the detector.

[0075] When the actual input voltage is greater than the preset voltage, it means that the current consumed by the detector is smaller, which reduces the voltage consumed in the power supply circuit and causes the voltage transmitted to the detector input terminal to be too large. Therefore, it is necessary to reduce the power supply voltage of the detector, that is, by reducing the output voltage of the power supply, so that the adjusted target power supply voltage transmitted to the detector input terminal can meet the normal operation of the detector.

[0076] Specifically, when the preset voltage is V1 and the actual input voltage at the detector input terminal is V2, the change between the actual input voltage and the preset voltage is ΔV = |V1 - V2|. When the actual input voltage is less than the preset voltage, the adjusted target supply voltage is V3 = V1 + ΔV. When the actual input voltage is greater than the preset voltage, the adjusted target supply voltage is V3 = V1 - ΔV.

[0077] It should be noted that when the comparison result shows that the actual input voltage is equal to the preset voltage, the current in the entire circuit is relatively stable, and there is no need to adjust the power supply voltage of the detector.

[0078] In some embodiments, obtaining the actual input voltage at the detector input terminal includes:

[0079] Step 1: Collect the voltage of the power supply pin of the detector.

[0080] Step 2: Filter the power supply pin voltage to obtain the actual input voltage.

[0081] For example, the voltage regulation device can collect the power supply pin voltage of the detector through the induction line, and then filter the power supply pin voltage to filter out high-frequency changes in the obtained power supply pin voltage signal, avoid causing power supply oscillation, and finally obtain the actual input voltage at the detector input terminal.

[0082] Specifically, the voltage regulation device may include a low-pass filter and an analog-to-digital converter. The voltage of the power supply pin of the detector is collected through the induction line and transmitted to the low-pass filter for filtering. The low-pass filter is then connected to the analog-to-digital converter, and the voltage output by the low-pass filter is transmitted to the analog-to-digital converter, which converts the analog voltage signal into a digital voltage signal to obtain the actual input voltage.

[0083] In the above implementation process, filtering the power supply pin voltage of the detector can effectively filter out high-frequency changes in the signal and effectively avoid power supply oscillation.

[0084] In some embodiments, transmitting the target supply voltage to the detector input includes transmitting the target supply voltage to the detector input via a power supply circuit.

[0085] For example, after adjusting the power supply voltage of the detector, the target power supply voltage is obtained. Then, during the process of the target power supply voltage being transmitted to the input end of the detector, there will be power supply loops such as wiring resistance and contact resistance. Therefore, the target power supply voltage will be transmitted to the input end of the detector after being consumed by the power supply loop. The voltage after passing through the power supply loop is the actual input voltage of the detector input end.

[0086] In the above implementation process, the target power supply voltage is transmitted to the input terminal of the detector through the power supply circuit, thereby obtaining the actual input voltage of the detector input terminal, which facilitates the feedback adjustment of the power supply voltage of the detector based on the actual input voltage and the preset voltage.

[0087] In some embodiments, after transmitting the target supply voltage to the detector's input, the method further includes:

[0088] Step 1: Determine the radiation dose received by the detector based on the actual input voltage and the target power supply voltage.

[0089] Step 2: Based on the radiation dose and the target power supply voltage, determine the mapping relationship between the detector's power supply voltage and the received radiation dose.

[0090] For example, the radiation dose received by the detector can be determined based on the actual input voltage and the target supply voltage. Since the larger the X-ray dose or X-ray photon flux received by the detector, the greater the power consumption and current of the detector chip, the lower the voltage of the power supply pin of the detector chip. That is, there is a voltage change ΔV = |V2-V3| between the actual input voltage and the target supply voltage, where V2 is the actual input voltage and V3 is the target supply voltage. This voltage change is equivalent to the consumption in the power supply circuit. Therefore, ΔV = |V2-V3| = R × I, where R is the equivalent resistance in the power supply circuit, which is usually a fixed value, and I is the current in the power supply circuit, which is also equivalent to the current in the detector. Thus, the magnitude of the current I in the detector can be determined based on the voltage change ΔV. The magnitude of the current I in the detector is usually related to the radiation dose received by the detector. Therefore, the radiation dose received by the detector can be determined based on the voltage change ΔV.

[0091] Specifically, since different detectors operate on different principles, when the voltage change ΔV is the same, the radiation dose received by different detectors may be different. For example, the relationship between the voltage change ΔV and the radiation dose may be linear, quadratic, or other corresponding relationships. The relationship is determined according to the actual situation and is not limited here.

[0092] Furthermore, based on the radiation dose and the target power supply voltage, the mapping relationship between the detector's power supply voltage and the received radiation dose can be determined, that is, the mapping relationship between the target power supply voltage and the radiation dose received by the detector.

[0093] In the above implementation process, the radiation dose received by the detector is determined based on the actual input voltage and the target power supply voltage. Then, based on the radiation dose and the target power supply voltage, the mapping relationship between the power supply voltage of the detector and the received radiation dose can be determined, which facilitates the monitoring of the X-ray dose of the detector.

[0094] This embodiment also provides a detector system. Figure 4 This is a schematic diagram of a detector system provided in an embodiment of this application, as shown below. Figure 4 As shown, the detector system includes a detector, a power supply circuit, a power supply device for the detector, and a voltage regulator for the detector. The voltage regulator and the power supply device together form a regulated power supply system.

[0095] The power supply device is connected to the input terminal of the detector through a power supply circuit, that is, the power supply device is connected to the power supply pin of the detector through a power supply circuit, and is used to supply power to the detector through the power supply circuit.

[0096] The voltage regulation device is connected to the input terminal of the detector and the power supply device respectively, and is used to execute the voltage regulation method of the detector in any of the above embodiments.

[0097] In some embodiments, the voltage regulation device includes a controller, a filter, and a signal converter. The filter may be a low-pass filter, and the signal converter may be an analog-to-digital signal converter.

[0098] The input terminal of the filter is connected to the input terminal of the detector, and the output terminal of the filter is connected to the input terminal of the signal converter. The filter is used to filter the pin voltage of the detector's input terminal to obtain the filtered voltage, and then transmit the filtered voltage to the input terminal of the signal converter.

[0099] The output of the signal converter is connected to the controller. The signal converter is used to convert the filtered voltage into a digital signal and transmit the digital signal to the controller.

[0100] The controller is connected to the power supply circuit and is used to execute the voltage regulation method of the detector in any of the above embodiments.

[0101] Specifically, the voltage regulation method of this detector can be achieved through methods such as... Figure 5 The process shown is implemented as follows: Figure 5 This is a flowchart illustrating an embodiment of a detector voltage regulation method provided in this application. Figure 5 As shown, the process includes:

[0102] Step S501: The preset voltage V1 is transmitted to the controller.

[0103] Specifically, the external preset voltage V1 is transmitted to the controller.

[0104] In step S502, the controller controls the output voltage V1 of the power supply device.

[0105] Furthermore, after receiving the preset voltage V1, the controller controls the power supply device to output voltage V1, thereby powering the detector.

[0106] In step S503, the voltage output by the power supply device is transmitted to the power supply pin through the power supply circuit.

[0107] Furthermore, since there is an unavoidable resistance in the power supply circuit, although the resistance value is small, it has a significant impact on the stability of the power supply voltage. When the output voltage V1 of the power supply device passes through the power supply circuit, a voltage drop will occur. At the same time, due to different detector operating conditions, the power consumption changes, which in turn causes the required power supply current to change. Therefore, the voltage drop is a variable, that is, the voltage output by the power supply device is transmitted to the power supply pin through the power supply circuit.

[0108] Step S504: The voltage of the power supply pin is transmitted to the input terminal of the filter.

[0109] Furthermore, in order to stabilize the voltage and minimize voltage drop changes, the voltage of the power supply pin can be obtained through the induction line and transmitted to the input of the filter. This filter is a low-pass filter, which filters out high-frequency changes in the obtained signal and avoids causing power supply oscillations.

[0110] In step S505, the signal at the filter output is transmitted to the input of the signal converter.

[0111] Furthermore, the signal at the filter output is transmitted to the input of a signal converter, which is an analog-to-digital converter, so that the analog-to-digital converter converts the analog signal output by the filter into a digital signal.

[0112] In step S506, the voltage at the output terminal of the signal converter is the actual input voltage V2.

[0113] Specifically, the voltage at the output of the signal converter is the actual input voltage V2, and this actual input voltage V2 is transmitted to the controller.

[0114] In step S506, the controller determines whether the actual input voltage V2 is less than the preset voltage V1.

[0115] Further, the controller determines whether the actual input voltage V2 is less than the preset voltage V1. If the actual input voltage V2 is less than the preset voltage V1, then step S508 is executed; if the actual input voltage V2 is greater than the preset voltage V1, then step S509 is executed.

[0116] In step S508, the controller controls the power supply device to increase the output voltage.

[0117] Specifically, when the actual input voltage V2 is less than the preset voltage V1, the controller controls the power supply device to increase the output voltage and returns to step S503.

[0118] In step S509, the controller controls the power supply device to reduce the output voltage.

[0119] When the actual input voltage V2 is greater than the preset voltage V1, the controller controls the power supply device to reduce the output voltage and returns to step S503.

[0120] It should be noted that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps.

[0121] This application also provides a voltage regulation device for a detector, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. The terms "module," "unit," "subunit," etc., used below can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0122] Figure 6 This is a structural block diagram of a voltage regulation device for a detector provided in an embodiment of this application, as shown below. Figure 6 As shown, the device includes:

[0123] The acquisition module 601 is used to acquire the actual input voltage at the detector input terminal;

[0124] The voltage adjustment module 602 is used to adjust the power supply voltage of the detector based on the actual input voltage and the preset voltage to obtain the adjusted target power supply voltage.

[0125] The voltage transmission module 603 is used to transmit the target power supply voltage to the input terminal of the detector.

[0126] In some embodiments, the voltage regulation module 602 is specifically used for:

[0127] The actual input voltage is compared with the preset voltage to obtain the comparison result;

[0128] Based on the comparison results, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage.

[0129] In some embodiments, the voltage regulation module 602 is specifically used for:

[0130] If the comparison result shows that the actual input voltage is less than the preset voltage, then increase the power supply voltage of the detector to obtain the adjusted target power supply voltage.

[0131] If the comparison result shows that the actual input voltage is greater than the preset voltage, then the power supply voltage of the detector is reduced to obtain the adjusted target power supply voltage.

[0132] In some embodiments, the acquisition module 601 is specifically used for:

[0133] Acquire the voltage of the power supply pins of the detector;

[0134] The voltage at the power supply pin is filtered to obtain the actual input voltage.

[0135] In some embodiments, the voltage transmission module 603 is specifically used for:

[0136] The target supply voltage is transmitted to the input terminal of the detector through the power supply circuit.

[0137] In some embodiments, the voltage transmission module 603 is also used for:

[0138] The radiation dose received by the detector is determined based on the actual input voltage and the target power supply voltage.

[0139] Based on the radiation dose and the target power supply voltage, the mapping relationship between the detector's power supply voltage and the received radiation dose is determined.

[0140] It should be noted that the above modules can be functional modules or program modules, and can be implemented through software or hardware. For modules implemented through hardware, the above modules can reside in the same processor; or the above modules can be located in different processors in any combination.

[0141] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 7 As shown, Figure 7 This is a schematic diagram of a computer device according to an embodiment of this application. The computer device includes a processor, a memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores voltage data of the detector. The network interface communicates with external terminals via a network connection. When the computer program is executed by the processor, it implements a voltage regulation method for the detector.

[0142] Those skilled in the art will understand that Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0143] In one embodiment, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0144] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0145] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0146] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0147] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0148] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A voltage adjustment method for a detector, characterized in that, include: Obtain the actual input voltage at the detector input terminal; The actual input voltage is determined by filtering the power supply pin voltage of the detector collected by the induction line; Based on the actual input voltage and the preset voltage, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage; The target supply voltage is transmitted to the input terminal of the detector through the power supply circuit so that the voltage at the input terminal of the detector is equal to the preset voltage. The current in the detector is determined based on the voltage change between the actual input voltage and the target supply voltage, as well as the equivalent resistance in the power supply circuit. The radiation dose received by the detector is determined based on the current in the detector.

2. The voltage adjustment method for the detector according to claim 1, characterized in that, The step of adjusting the power supply voltage of the detector based on the actual input voltage and the preset voltage to obtain the adjusted target power supply voltage includes: The actual input voltage is compared with the preset voltage to obtain the comparison result; Based on the comparison results, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage.

3. The voltage adjustment method for the detector according to claim 2, characterized in that, The step of adjusting the power supply voltage of the detector based on the comparison result to obtain the adjusted target power supply voltage includes: If the comparison result shows that the actual input voltage is less than the preset voltage, then the power supply voltage of the detector is increased to obtain the adjusted target power supply voltage; If the comparison result shows that the actual input voltage is greater than the preset voltage, then the power supply voltage of the detector is reduced to obtain the adjusted target power supply voltage.

4. The voltage adjustment method for the detector according to claim 1, characterized in that, After transmitting the target power supply voltage to the input terminal of the detector, the method further includes: Based on the radiation dose and the target power supply voltage, the mapping relationship between the detector's power supply voltage and the received radiation dose is determined.

5. A voltage regulation device for a detector, characterized in that, include: The acquisition module is used to acquire the actual input voltage at the detector input terminal; The actual input voltage is determined by filtering the voltage of the power supply pin of the detector collected by the induction line. The voltage adjustment module is used to adjust the power supply voltage of the detector based on the actual input voltage and the preset voltage to obtain the adjusted target power supply voltage. A voltage transmission module is used to transmit the target power supply voltage to the input terminal of the detector through a power supply circuit, so that the voltage at the input terminal of the detector is equal to the preset voltage. The current in the detector is determined based on the voltage change between the actual input voltage and the target supply voltage, as well as the equivalent resistance in the power supply circuit; the radiation dose received by the detector is determined based on the current in the detector.

6. The apparatus according to claim 5, characterized in that, The voltage regulation module is used to compare the actual input voltage with the preset voltage to obtain a comparison result; Based on the comparison results, the power supply voltage of the detector is adjusted to obtain the adjusted target power supply voltage.

7. A detector system, characterized in that, include: The detector, the power supply circuit, the power supply device for the detector, and the voltage regulation device for the detector; The power supply device is connected to the input terminal of the detector through the power supply circuit, and is used to supply power to the detector through the power supply circuit; The voltage regulation device is connected to the input terminal of the detector and the power supply device respectively, and is used to perform the voltage regulation method of the detector as described in any one of claims 1 to 4.

8. The detector system according to claim 7, characterized in that, The voltage regulation device includes: a controller, a filter, and a signal converter; The input terminal of the filter is connected to the input terminal of the detector, and the output terminal of the filter is connected to the input terminal of the signal converter. The filter is used to filter the pin voltage of the input terminal of the detector to obtain the filtered voltage, and transmit the filtered voltage to the input terminal of the signal converter. The output terminal of the signal converter is connected to the controller. The signal converter is used to convert the filtered voltage into a digital signal and transmit the digital signal to the controller. The controller is connected to the power supply circuit and is used to execute the voltage regulation method of the detector as described in any one of claims 1 to 4.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the voltage regulation method for the detector according to any one of claims 1-4.

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