Image data acquisition method, system, device and rotation driver

Abstract

The present application relates to an image data acquisition method, system, device and rotary driver. The method comprises: obtaining a rotation angle of a rotary driver, generating a trigger instruction of a detector according to a preset angle interval and the rotation angle of the rotary driver, sending the trigger instruction to the detector so that the detector acquires computer X-ray tomography image data, determining the position of the rotary driver according to the rotation angle of the rotary driver, and generating a trigger instruction at the exact position to accurately acquire computer X-ray tomography image data.

Description

Technical Field

[0001] The present application relates to the field of medical instrument technology, and in particular to an image data acquisition method, system, device and rotary driver. Background Art

[0002] Micro-CT, also known as micro-CT, microfocus CT or micro CT, uses a microfocus X-ray tube that is different from ordinary clinical CT. Micro-CT imaging is a technology that uses a microfocus X-ray tube to scan and image the various hard tissues and / or related soft tissues of the scanned object.

[0003] In traditional technology, the method of continuous data acquisition of the scanned object based on Micro-CT is to calculate the trigger time required to trigger the data acquisition signal according to the preset speed and preset rotation position of the rotation driver, trigger the data acquisition signal when the trigger time is reached, and drive the detector to collect data on the object to be measured.

[0004] However, the current data collection method based on Micro-CT has the problem of inaccurate data collection. Summary of the invention

[0005] Based on this, it is necessary to provide an image data acquisition method, system, device and rotation driver that can accurately acquire data in response to the above technical problems.

[0006] In a first aspect, the present application provides a method for collecting image data. The method comprises:

[0007] Get the rotation angle of the rotary drive;

[0008] Generate a trigger instruction for the detector according to a preset angle interval and a rotation angle of the rotary driver;

[0009] A trigger instruction is sent to the detector to enable the detector to acquire computerized X-ray tomography image data.

[0010] In one embodiment, generating a trigger instruction of the detector according to a preset angle interval and a rotation angle of the rotary driver includes:

[0011] Determining the count value of the rotary driver according to the corresponding relationship between the angle interval and the count interval of the rotary driver and the rotation angle of the rotary driver;

[0012] According to the count value, a trigger instruction is generated.

[0013] In one embodiment, generating a trigger instruction according to the count value includes:

[0014] When the count value reaches a preset count threshold, a trigger instruction is generated.

[0015] In one embodiment, generating a trigger instruction of the detector according to a preset angle interval and a rotation angle of the rotary driver includes:

[0016] When the rotation angle and the angular interval of the rotary drive are equal, a trigger command is generated.

[0017] In one embodiment, the method for collecting image data further includes:

[0018] Receive the target number of trigger generation instructions sent by the control board;

[0019] When the number of times the trigger instruction is generated reaches the target number of times, the generation of the trigger instruction is stopped.

[0020] In one embodiment, before obtaining the rotation angle of the rotation driver, the method further includes:

[0021] Receive the start command sent by the control board; the start command is used to instruct the rotation driver to start rotating.

[0022] In one embodiment, the method for collecting image data is applied to a micro-computer tomography device.

[0023] In a second aspect, the present application provides an image data acquisition system, the system comprising: a control terminal, a control board, a rotation driver and a detector;

[0024] The control terminal is used to send a start command to the control board; the start command is used to instruct the rotary drive to start rotating and to indicate that the detector is in a ready state;

[0025] A control board is used to send a start instruction and a target number of times to the rotary drive; the target number of times is the number of times the rotary drive generates a trigger instruction;

[0026] A rotary drive for performing the steps of the method of any one of claims 1 to 7;

[0027] The detector is used to collect computer tomography image data according to the trigger instruction.

[0028] In a third aspect, the present application also provides an image data acquisition device. The device comprises:

[0029] An acquisition module, used for acquiring the rotation angle of the rotation driver;

[0030] A generating module, used for generating a trigger instruction of the detector according to a preset angle interval and a rotation angle of the rotating driver;

[0031] The acquisition module is used to send a trigger instruction to the detector so that the detector can acquire CT image data.

[0032] In a fourth aspect, the present application further provides a rotation driver, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the steps of the method in any one of the embodiments of the first aspect.

[0033] The above-mentioned image data acquisition method, system, device and rotary driver obtain the rotation angle of the rotary driver, generate a trigger instruction for the detector according to a preset angle interval and the rotation angle of the rotary driver, and send the trigger instruction to the detector so that the detector can acquire computer X-ray tomography image data. It can determine the position of the rotary driver according to the rotation angle of the rotary driver, and generate a trigger instruction at the exact position to accurately acquire computer X-ray tomography image data. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A diagram showing an application environment of a method for collecting image data in one embodiment;

[0035] Figure 2 is a schematic flow chart of a method for collecting image data in one embodiment;

[0036] Figure 3 is a flow chart of a method for collecting image data in another embodiment;

[0037] Figure 4 is a schematic flow chart of a method for collecting image data in another embodiment;

[0038] Figure 5 is a schematic flow chart of a method for collecting image data in another embodiment;

[0039] Figure 6 is a schematic diagram of an image data acquisition system in one embodiment;

[0040] Figure 6-a A schematic diagram of the relationship between the number of trigger times and the count value in one embodiment;

[0041] Figure 7 is a structural block diagram of an image data acquisition device in one embodiment;

[0042] Figure 8 FIG. 4 is a diagram showing the internal structure of a rotary driver in one embodiment. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] When the computer tomography device of the prior art continuously collects data on the scanned object, it is through a system including a control terminal, a control board, a field editable logic gate array chip, a rotating driver and a detector. The control terminal obtains the initial speed of driving the rotating driver to rotate, and transmits it to the field editable logic gate array chip through the control board. The field editable logic gate array chip calculates the target time of rotation according to the formula S=vt based on the initial speed and the preset rotation distance, and sends a trigger instruction to the detector when the target time arrives, so that the detector collects computer tomography image data and transmits the image data to the control terminal. However, the initial speed obtained in the prior art is the rotation speed of the rotating driver under an ideal state. In the actual rotation process, the rotation speed cannot be maintained at the initial speed without changing, but a certain speed fluctuation will occur. Therefore, when the target time calculated by the field editable logic gate array chip based on the initial speed arrives, there is a situation that the rotating driver has not rotated the preset rotation distance, that is, it has not reached the target position that should trigger the detector to collect the image, or the rotating driver has rotated more than the preset rotation distance, that is, it has exceeded the target position that should trigger the detector to collect the image, that is, the prior art has the problem of inaccurate data collection.

[0045] Based on this, the present application provides a method for collecting image data to solve the above problems. The method for collecting image data provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown. The application environment includes a control terminal 11, a control board 12, a rotation driver 13 and a detector 14; wherein the control terminal sends a start instruction to the control board; the control board sends a start instruction to the rotation driver; the rotation driver is used to rotate according to the start instruction, and send a trigger instruction to the detector when rotating at a preset angle interval, so that the detector collects computer X-ray tomography image data according to the trigger instruction. Among them, the control terminal 11 can be but not limited to various personal computers, laptops, smart phones, tablets, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The control board can be but not limited to ISA bus boards, EISA bus boards, PCI bus boards, and AGP bus boards.

[0046] In one embodiment, Figure 2As shown, a method for collecting image data is provided, and the method is applied to Figure 1 The rotary drive in the example is used to illustrate the following steps:

[0047] S202, obtaining the rotation angle of the rotation driver.

[0048] Specifically, when it is necessary to collect image data of a target object, the user's start command can be first obtained through the control terminal, and transmitted to the rotary drive through the control board card to rotate the rotary drive, and the current rotation angle of the rotary drive is obtained during the rotation of the rotary drive. The target object may include: animals, etc. without limitation.

[0049] Optionally, before obtaining the rotation angle of the rotary driver, the rotary driver receives a start instruction sent by a control board; the start instruction is used to instruct the rotary driver to start rotating.

[0050] S204, generating a trigger instruction for the detector according to the preset angle interval and the rotation angle of the rotation driver.

[0051] The preset angle interval may include a preset angle at which the rotary driver rotates when the rotary driver performs a count as set by the user, or a total angle at which the rotary driver rotates when the rotary driver counts a preset number of times as set by the user. The trigger instruction refers to an instruction that triggers the detector to scan the target object.

[0052] Specifically, after the rotation angle of the rotary driver is obtained, it can be determined whether the rotation angle reaches the preset angle interval. When the preset angle interval is reached, the generated trigger instruction is sent to the detector. For example, when the rotation angle of the rotary driver is obtained to be 10 degrees and the preset angle interval is 10 degrees, the counter in the rotary driver counts once and a trigger instruction can be generated. For example, when the rotary driver counts once every time the rotary driver rotates 1 degree, and the preset angle interval is 10 degrees, a trigger instruction needs to be generated when the count value reaches 10. If the rotation angle obtained at this time is 8 degrees, 8 counts have been completed at this time. When the rotary driver counts twice more, a trigger instruction is generated, and there is no restriction here.

[0053] Optionally, after the trigger instruction is generated, the count value of the rotating driver is reset, and the counting starts again according to the rotation angle during the rotation process, and the step of generating the trigger instruction of the detector according to the preset angle interval and the rotation angle of the rotating driver is repeated until the detector scan is completed.

[0054] S206, sending a trigger instruction to the detector so that the detector acquires computer tomography image data.

[0055] Specifically, after the rotary driver generates a trigger instruction, it is sent to the detector so that the detector scans the target object and collects computer X-ray tomography image data.

[0056] Optionally, the image data acquisition method may be applied to a micro-computer tomography device or other computer tomography devices, which is not limited here.

[0057] Preferably, the method for collecting image data is applied to a microcomputer tomography device.

[0058] In the above-mentioned image data acquisition method, by acquiring the rotation angle of the rotary driver, a trigger instruction of the detector is generated according to the preset angle interval and the rotation angle of the rotary driver, and the trigger instruction is sent to the detector so that the detector can acquire computer X-ray tomography image data. The position of the rotary driver can be determined according to the rotation angle of the rotary driver, and a trigger instruction can be generated at the exact position to accurately acquire computer X-ray tomography image data.

[0059] The above embodiment describes the method for collecting image data. In this method, the most important thing is how to accurately generate a trigger instruction. Now, an embodiment is used to further describe how to generate a trigger instruction. In one embodiment, Figure 3 As shown, according to the preset angle interval and the rotation angle of the rotary driver, a trigger instruction of the detector is generated, including:

[0060] S302, determining the count value of the rotary driver according to the corresponding relationship between the angle interval and the count interval of the rotary driver and the rotation angle of the rotary driver.

[0061] The corresponding relationship between the angle interval and the counting interval of the rotary driver may include that the corresponding rotary driver performs a count every time an angle interval is passed, that is, one angle interval corresponds to one counting interval.

[0062] Specifically, after the rotation angle of the rotary drive is obtained, it is determined whether the rotation angle reaches the angle interval according to the rotation angle. When the angle interval is reached, the rotary drive performs a count. For example, if the angle interval is 1 degree, the rotary drive performs a count every time the rotary drive rotates 1 degree. At this time, if the rotation angle is 10 degrees, the count value of the rotary drive is 10 times.

[0063] S304: Generate a trigger instruction according to the count value.

[0064] Specifically, generating a trigger instruction according to the count value may include generating a trigger instruction when the count value reaches a preset count threshold.

[0065] Optionally, when the count value reaches a preset count threshold, the count value is cleared and counted again.

[0066] In this embodiment, the count value of the rotary driver is determined based on the correspondence between the angle interval and the count interval of the rotary driver and the rotation angle of the rotary driver. A trigger instruction is generated based on the count value. This makes it possible to accurately determine whether the rotary driver reaches the target position for generating the trigger instruction after rotating by a certain angle, that is, rotating to a certain position. When the target position is reached, a trigger instruction is generated so that the detector scans the target object according to the trigger instruction to obtain accurate image data.

[0067] The above embodiment describes a method for generating a trigger instruction. Now, another method for generating a trigger instruction is described with an embodiment. In one embodiment, the trigger instruction of the detector is generated according to the preset angle interval and the rotation angle of the rotation driver, including:

[0068] When the rotation angle and the angular interval of the rotary drive are equal, a trigger command is generated.

[0069] Specifically, when the rotation angle of the rotary driver is equal to the preset angle interval, a trigger instruction is generated. For example, when the rotation angle of the rotary driver is 10 degrees and the preset angle interval is 10 degrees, a trigger instruction is generated at this time.

[0070] In this embodiment, by generating a trigger instruction when the rotation angle of the rotary driver is equal to the angle interval, it is possible to accurately determine whether the rotary driver reaches the target position for generating the trigger instruction after rotating a certain angle, that is, rotating to a certain position, and generate a trigger instruction when reaching the target position, so that the detector scans the target object according to the trigger instruction to obtain accurate image data.

[0071] The above embodiment describes the method for collecting image data. Now, an embodiment is used to further describe the method for collecting image data. In one embodiment, Figure 4 As shown, the image data acquisition method also includes:

[0072] S402, receiving a target number of times of generating a trigger instruction sent by a control board.

[0073] Specifically, the user wants to control the board to send a target number of times of generating trigger instructions through the control terminal, that is, the detector needs to scan a target number of times to generate image data.

[0074] S404: When the number of times the trigger instruction is generated reaches the target number, stop generating the trigger instruction.

[0075] Specifically, when the number of times the rotary driver generates trigger instructions reaches the target number, the trigger instructions are stopped from being generated, and the detector completes scanning the target object.

[0076] In this embodiment, by receiving the target number of times for generating trigger instructions sent by the control board, when the number of times the trigger instructions are generated reaches the target number, the generation of trigger instructions is stopped, and the number of times the trigger instructions are generated can be controlled so that the detector scans the target object multiple times to obtain the required image data.

[0077] In order to facilitate the understanding of those skilled in the art, an embodiment is now used to further illustrate the method for collecting image data. In one embodiment, referring to Figure 5 As shown, the method for collecting image data includes:

[0078] S501, receiving a target number of times of generating a trigger instruction sent by a control board.

[0079] S502, receiving a start instruction sent by the control board; the start instruction is used to instruct the rotation driver to start rotating.

[0080] S503, obtaining the rotation angle of the rotation driver.

[0081] S504, determining the count value of the rotary driver according to the corresponding relationship between the angle interval and the count interval of the rotary driver and the rotation angle of the rotary driver.

[0082] S505: When the count value reaches a preset count threshold, a trigger instruction is generated.

[0083] S506, sending a trigger instruction to the detector so that the detector acquires computer tomography image data.

[0084] S507: When the number of times the trigger instruction is generated reaches the target number, stop generating the trigger instruction.

[0085] In this embodiment, by acquiring the rotation angle of the rotary driver, a trigger instruction of the detector is generated according to a preset angle interval and the rotation angle of the rotary driver, and the trigger instruction is sent to the detector so that the detector can collect computer X-ray tomography image data. The position of the rotary driver can be determined according to the rotation angle of the rotary driver, and a trigger instruction can be generated at the exact position to accurately acquire computer X-ray tomography image data.

[0086] To facilitate understanding by those skilled in the art, an embodiment is now used to further illustrate a method for collecting image data. In one embodiment, the method for collecting image data includes:

[0087] S601, receiving a target number of times of generating a trigger instruction sent by a control board.

[0088] S602, receiving a start instruction sent by the control board; the start instruction is used to instruct the rotation driver to start rotating.

[0089] S603, obtaining the rotation angle of the rotation driver.

[0090] S604: When the rotation angle of the rotation driver is equal to the angle interval, a trigger instruction is generated.

[0091] S605, sending a trigger instruction to the detector so that the detector acquires computer tomography image data.

[0092] S606: When the number of times the trigger instruction is generated reaches the target number, stop generating the trigger instruction.

[0093] In this embodiment, by acquiring the rotation angle of the rotary driver, a trigger instruction of the detector is generated according to a preset angle interval and the rotation angle of the rotary driver, and the trigger instruction is sent to the detector so that the detector can collect computer X-ray tomography image data. The position of the rotary driver can be determined according to the rotation angle of the rotary driver, and a trigger instruction can be generated at the exact position to accurately acquire computer X-ray tomography image data.

[0094] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0095] The above embodiment describes a method for collecting image data. Now, an embodiment of an image data collection system to which the method is applied is described. In one embodiment, Figure 6 As shown, the system includes: a control terminal 61, a control board 62, a rotation driver 63 and a detector 64;

[0096] The control terminal is used to send a start command to the control board; the start command is used to instruct the rotary drive to start rotating and to indicate that the detector is in a ready state;

[0097] A control board is used to send a start instruction and a target number of times to the rotary drive; the target number of times is the number of times the rotary drive generates a trigger instruction;

[0098] A rotary driver, used to perform the steps of any one of the above-mentioned methods for collecting image data;

[0099] The detector is used to collect computer tomography image data according to the trigger instruction.

[0100] Specifically, the control terminal and the control board can be connected through a network cable, the control board and the rotation driver can be connected through a CAN bus or a serial port, the rotation driver and the detector can be connected through IO first, and the control terminal and the detector are connected through a network cable. The control terminal notifies the detector that it is in a state of preparing to collect data. The rotation controller may include a counter and a signal trigger. The counter is used to count according to the preset angle interval of the rotation of the rotation driver. When the target count number is reached, a start signal is sent to the detector through the signal trigger.

[0101] The user sends a start command to the control board through the control terminal to start the rotation drive to start rotating and instruct the detector to be in a ready state so that the computer X-ray tomography image data can be collected upon receiving the trigger command from the rotation drive. After receiving the start command, the control board can determine the target number of trigger commands that the rotation drive needs to generate according to the start command and transmit it to the rotation drive.

[0102] The implementation scheme of the rotary driver is the same as the implementation scheme in the above-mentioned method for collecting image data, so please refer to the above definition of the method for collecting image data and will not be repeated again.

[0103] For example, Figure 6-a As shown, the relationship between the trigger times and the count value (count value) is described. For example, the rotary driver triggers the IO once every time the count value reaches 10,000, and is triggered 7 times in total.

[0104] In this embodiment, the control terminal sends a start instruction to the control board to instruct the rotary driver to start rotating and to instruct the detector to be in a ready state. The control board sends a start instruction and a target number of times to the rotary driver. The rotary driver obtains the rotation angle of the rotary driver, and generates a trigger instruction for the detector based on a preset angle interval and the rotation angle of the rotary driver. The trigger instruction is sent to the detector to enable the detector to collect computer X-ray tomography image data. The detector can determine the position of the rotary driver based on the rotation angle of the rotary driver, and generate a trigger instruction at the exact position to accurately obtain computer X-ray tomography image data.

[0105] Based on the same inventive concept, the embodiment of the present application also provides an image data acquisition device for implementing the image data acquisition method involved above. The implementation solution provided by the device to solve the problem is similar to the implementation solution recorded in the above-mentioned image data acquisition method, so the specific limitations in the one or more image data acquisition device embodiments provided below can refer to the limitations of the image data acquisition method above, and will not be repeated here.

[0106] In one embodiment, Figure 7 As shown, a device for collecting image data is provided, comprising:

[0107] An acquisition module 71 is used to acquire the rotation angle of the rotation driver;

[0108] A generating module 72, for generating a trigger instruction of the detector according to a preset angle interval and a rotation angle of the rotating driver;

[0109] The acquisition module 73 is used to send a trigger instruction to the detector so that the detector acquires CT image data.

[0110] Optionally, the image data acquisition device is applied to a microcomputer tomography device.

[0111] In this embodiment, the acquisition module acquires the rotation angle of the rotary driver, the generation module generates a trigger instruction for the detector according to the preset angle interval and the rotation angle of the rotary driver, and the acquisition module sends the trigger instruction to the detector so that the detector can collect computer X-ray tomography image data. The position of the rotary driver can be determined according to the rotation angle of the rotary driver, and the trigger instruction can be generated at the exact position to accurately acquire the computer X-ray tomography image data.

[0112] In one embodiment, the generating module is specifically used to determine the counting value of the rotating driver according to the corresponding relationship between the angle interval and the counting interval of the rotating driver and the rotation angle of the rotating driver; and generate a trigger instruction according to the counting value.

[0113] In one embodiment, the generating module is specifically configured to generate a trigger instruction when the count value reaches a preset count threshold.

[0114] In one embodiment, the generating module is specifically configured to generate a trigger instruction when the rotation angle and the angle interval of the rotating driver are equal.

[0115] In one embodiment, the image data acquisition device further includes:

[0116] A target number receiving module is used to receive the target number of generating trigger instructions sent by the control board;

[0117] The stop module is used to stop generating trigger instructions when the number of times the trigger instructions are generated reaches the target number.

[0118] In one embodiment, the image data acquisition device further includes:

[0119] The start receiving module is used to receive the start instruction sent by the control board; the start instruction is used to instruct the rotation driver to start rotating.

[0120] Each module in the above-mentioned image data acquisition device can be implemented in whole or in part by software, hardware or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the rotating drive in the form of hardware, or can be stored in the memory in the rotating drive in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0121] In one embodiment, a rotary drive is provided, the internal structure of which can be shown as follows: Figure 8 As shown. The rotary driver includes a counter and a signal trigger, and a control board connected via a system bus. Among them, the counter of the rotary driver is used to count according to the preset angle interval of the rotary driver, and when the target technical number is reached, a starting signal is sent to the detector through the signal trigger. The rotary driver also includes a processor, a memory, a communication interface, a display screen and an input device connected via the system bus. Among them, the processor of the rotary driver is used to provide computing and control capabilities. The memory of the rotary driver includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the rotary driver is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for collecting image data is implemented.

[0122] Those skilled in the art will understand that Figure 8 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the rotary drive to which the scheme of the present application is applied. The specific rotary drive may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0123] In one embodiment, a rotation driver is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the steps of the method in any one of the embodiments of the above-mentioned method for collecting image data are implemented.

[0124] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method in any one of the embodiments of the above-mentioned method for acquiring image data are implemented.

[0125] In one embodiment, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of the method in any one of the embodiments of the above-mentioned method for acquiring image data.

[0126] 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, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0127] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present 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), magnetoresistive 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. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0128] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, 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.

[0129] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for collecting image data, characterized in that: The method comprises: Acquire a rotation angle of a rotary drive; the rotation angle is a current rotation angle of the rotary drive acquired during the rotation of the rotary drive; Generate a trigger instruction for the detector according to a preset angle interval and a rotation angle of the rotary driver; Sending the trigger instruction to the detector so that the detector acquires computer tomography image data; The step of generating a trigger instruction of the detector according to the preset angle interval and the rotation angle of the rotation driver comprises: Determining a count value of the rotary actuator according to a corresponding relationship between the angle interval and the count interval of the rotary actuator and a rotation angle of the rotary actuator; Generate the trigger instruction according to the count value; The step of generating the trigger instruction according to the count value includes: When the count value reaches a preset count threshold, the trigger instruction is generated, and the count value is cleared to zero to count again; The method further comprises: Receive the target number of times for generating the trigger instruction sent by the control board; When the number of times the trigger instruction is generated reaches the target number of times, the generation of the trigger instruction is stopped.

2. The method according to claim 1, characterized in that Before obtaining the rotation angle of the rotary driver, the method further includes: A start instruction sent by the control board is received; the start instruction is used to instruct the rotation driver to start rotating.

3. The method according to claim 1 or 2, characterized in that: The method is applied to a microcomputer tomography device.

4. An image data acquisition system, characterized in that: The system comprises: a control terminal, a control board, a rotation driver and a detector; The control terminal is used to send a start instruction to the control board; the start instruction is used to instruct the rotation driver to start rotating and to instruct the detector to be in a ready state; The control board is used to send the start instruction and the target number of times to the rotary driver; the target number of times is the number of times the rotary driver generates the trigger instruction; The rotary drive is used to perform the steps of the method described in any one of claims 1 to 3 above; The detector is used to collect computer tomography image data according to the trigger instruction.

5. An image data acquisition device, characterized in that: The device comprises: An acquisition module, used for acquiring a rotation angle of a rotary driver; the rotation angle is a current rotation angle of the rotary driver acquired during the rotation of the rotary driver; A generating module, used for generating a trigger instruction of the detector according to a preset angle interval and a rotation angle of the rotating driver; An acquisition module, used for sending the trigger instruction to the detector so that the detector acquires CT image data; The generating module is used to determine the count value of the rotary driver according to the corresponding relationship between the angle interval and the count interval of the rotary driver and the rotation angle of the rotary driver; and generate the trigger instruction according to the count value; A target number receiving module, used for receiving the target number of times for generating the trigger instruction sent by the control board; A stopping module, used for stopping the generation of the trigger instruction when the number of times the trigger instruction is generated reaches the target number; The generating module is used to generate the trigger instruction and clear the counting value to zero to restart counting when the counting value reaches a preset counting threshold.

6. The device according to claim 5, characterized in that The device also includes: The start receiving module is used to receive the start instruction sent by the control board; the start instruction is used to instruct the rotation driver to start rotating.

7. The device according to claim 5 or 6, characterized in that The device is applied to microcomputer tomography equipment.

8. A rotary drive, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 3 are implemented.

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