A CT device, a control method of a CT device, a device, and a medium

Abstract

The application discloses a CT device, a control method, device and medium of the CT device, and applies to the medical field. The CT device provided by the application comprises an MCU, a first sensor, a second sensor, a CT bed and a CT gantry. The first sensor and the second sensor are both installed on the CT device and are used for acquiring first position information and second position information of the CT bed and the CT gantry respectively. The MCU is connected with the first sensor and the second sensor respectively and is used for comparing the first position information with the second position information. If the difference between the first position information and the second position information exceeds a preset tolerance range, it is indicated that the sensor or the MCU is faulty. The first sensor and the second sensor are both sensors used for acquiring lifting position information and longitudinal position information of the CT bed and rotation angle information and inclination angle information of the CT gantry. The CT device provided by the application improves the safety performance of the CT device through self-checking.

Description

TECHNICAL FIELD

[0001] The present application relates to the medical field, and in particular to a CT device, a control method and device of the CT device, and a medium. BACKGROUND

[0002] A Computed Tomography (CT) device, especially a large-aperture CT device, is mainly used for simulation positioning of tumor radiotherapy technology. Through the CT device, CT can be performed on a patient to obtain 2D image information of the patient, provide image data for a Treatment Planning system (TPS), and verify and calibrate a beam center point given by the TPS. The safety performance of the CT device is related to the safety of the patient. At present, the CT device usually obtains position information of a CT bed and a CT gantry through a set of sensors, and then a Microcontroller Unit (MCU) controls a motor driver to drive the motor to work. The MCU controls the motor driver to work according to the position information of the CT bed and the CT gantry, so that the CT device enters a corresponding working process.

[0003] The current CT device cannot detect faults when a sensor or an MCU has a problem. If the sensor of the CT device has a problem, the MCU may obtain incorrect position information. For example, if the CT bed and the CT gantry do not reach a specified position, the MCU may mistakenly judge that the CT bed and the CT gantry have reached the specified position and then control the motor to work, thereby threatening the life safety of the patient.

[0004] In view of the above technology, it is an urgent problem for those skilled in the art to seek a CT device that can improve safety performance. SUMMARY

[0005] The purpose of the present application is to provide a CT device, a control method and device of the CT device, and a medium to improve the safety performance of the CT device.

[0006] To solve the above technical problems, the present application provides a CT device, comprising an MCU, a first sensor, a second sensor, and a CT component, wherein the CT component comprises a CT bed and a CT gantry.

[0007] The first sensor and the second sensor are both installed on the CT device and are used to obtain first position information and second position information of the CT component, respectively. The first sensor and the second sensor are sensors that obtain lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry.

[0008] The MCU is connected with the first sensor and the second sensor respectively, and is configured to compare the first position information with the second position information, so as to control the CT device to stop working when the difference between the first position information and the second position information exceeds a preset tolerance range.

[0009] Preferably, the first sensor and the second sensor each comprise:

[0010] A bed lifting position potentiometer, a bed longitudinal position potentiometer, a gantry rotation angle potentiometer, and a gantry tilt angle potentiometer.

[0011] Preferably, the MCU comprises a first MCU and a second MCU, wherein the first MCU is connected with the first sensor, and the second MCU is connected with the second sensor.

[0012] The second MCU is connected with the first MCU, and is configured to receive the first position information sent by the first MCU.

[0013] Preferably, the method further comprises: a solid state relay.

[0014] The motor driver of the CT bed is connected with its power supply through the solid state relay.

[0015] The second MCU is connected with the solid state relay, and is configured to control the solid state relay to be disconnected when the difference between the first position information and the second position information exceeds the preset tolerance range.

[0016] Preferably, the method further comprises: an optical coupler.

[0017] The control chip of the CT bed and the CT gantry is connected with the first MCU through the optical coupler.

[0018] Preferably, the power supply of the first MCU and the first sensor is a first power supply, and the power supply of the second MCU and the second sensor is a second power supply.

[0019] Preferably, the first sensor and the second sensor each comprise:

[0020] A bed lifting position encoder, a bed longitudinal position encoder, a gantry rotation angle encoder, and a gantry tilt angle encoder.

[0021] To solve the above technical problems, the application further provides a control method of a CT device, which is applied to the CT device, and the method comprises:

[0022] receive first position information and second position information of CT components acquired by a first sensor and a second sensor, the first sensor and the second sensor are sensors for acquiring lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry;

[0023] compare the first position information with the second position information, and control the CT device to stop working when a difference between the first position information and the second position information exceeds a preset tolerance range.

[0024] To solve the above technical problems, the application further provides a control device of a CT device, which is applied to the CT device, and the device comprises:

[0025] a receiving module, configured to receive first position information and second position information of CT components acquired by a first sensor and a second sensor, the first sensor and the second sensor are sensors for acquiring lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry;

[0026] a comparing module, configured to compare the first position information with the second position information, and control the CT device to stop working when a difference between the first position information and the second position information exceeds a preset tolerance range.

[0027] To solve the above technical problems, the application further provides a control device of a CT device, which comprises a memory for storing a computer program.

[0028] a processor, configured to execute the computer program to realize the steps of the control method of the CT device.

[0029] To solve the above technical problems, the application further provides a computer readable storage medium, which has a computer program stored thereon, and the computer program is executed by a processor to realize the steps of the control method of the CT device.

[0030] The CT device provided in the application comprises an MCU, a first sensor, a second sensor, a CT bed and a CT gantry. The first sensor and the second sensor are both installed on the CT device and are used to acquire first position information and second position information of the CT bed and the CT gantry respectively. The MCU is connected with the first sensor and the second sensor respectively and is used to compare the first position information with the second position information. The MCU controls the motor driver to work according to the first position information of the CT bed and the CT gantry sent by the first sensor. If the gap between the first position information and the second position information exceeds a preset tolerance range, it indicates that the sensor or the MCU is faulty, and the motor driver should be controlled to stop working. The first sensor and the second sensor are both sensors used to acquire lifting position information and longitudinal position information of the CT bed and rotation angle information and inclination angle information of the CT gantry. The CT device provided in the application improves its safety performance through self-checking and avoids threatening the life safety of patients.

[0031] The application further provides a CT device control method, device and medium, which correspond to the above-mentioned CT device and have the same beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the application, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0033] Figure 1 FIG. 1 is a structural schematic diagram of a control circuit of a CT bed;

[0034] Figure 2 FIG. 2 is a structural schematic diagram of a protection circuit of the CT bed;

[0035] Figure 3 FIG. 3 is a structural schematic diagram of a control circuit of a CT gantry;

[0036] Figure 4 FIG. 4 is a structural schematic diagram of a protection circuit of the CT gantry;

[0037] Figure 5 FIG. 5 is a flowchart of a CT device control method provided in an embodiment of the application;

[0038] Figure 6 FIG. 6 is a structural diagram of a CT device control device provided in an embodiment of the application;

[0039] Figure 7 FIG. 7 is a structural diagram of a CT device control device provided in another embodiment of the application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] The core of the present application is to provide a CT device, a control method, device and medium of the CT device.

[0042] In order to enable the personnel in the technical field to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0043] In the CT device provided by the present application, the device for control includes an operation computer, a scan control and reconstruction (SC / RC) computer, and an MCU, and the above devices communicate with each other to realize the control of the CT device. Generally, the operation computer is connected with the SC / RC computer through a network cable, and the SC / RC computer and the MCU communicate with each other through a CAN communication port extended by a CAN card. If there are multiple MCUs, the multiple MCUs communicate with each other through a serial port. The most important CT components in the CT device are a CT bed and a CT gantry. The CT bed is a component for providing support for a patient, and the CT gantry is a component for realizing scanning. Generally, when the CT device works, the CT gantry needs to rotate at a high speed. The CT bed and the CT gantry are driven by respective motors to complete work, and the motors are driven by corresponding motor drivers. The MCU is connected with the motor drivers to control the work of the motor drivers. The CT bed needs to complete lifting motion and longitudinal motion, and the CT bed generally includes two motors and two motor drivers to realize the lifting motion and the longitudinal motion of the CT bed, respectively. The CT gantry needs to complete rotating motion and tilting motion, and the CT gantry also needs two motors and two motor drivers. When the CT device works, the position information of the CT bed and the CT gantry needs to be acquired, and corresponding scanning work is performed according to the position information of the CT bed and the CT gantry. Therefore, the CT bed includes a bed lifting position sensor and a bed longitudinal position sensor, and the CT gantry includes a gantry rotating angle sensor and a gantry tilting angle sensor to acquire corresponding position information. In actual application, these sensors may fail, resulting in inaccurate acquired position information, thereby causing a more serious accident, for example, if the CT bed does not reach a specified position, but the MCU determines that the CT bed reaches the specified position according to the obtained position information, the CT gantry will be mistakenly started.

[0044] To solve the above technical problems, the application provides a CT device, comprising an MCU, a first sensor, a second sensor and a CT component, wherein the CT component comprises a CT bed and a CT gantry; the first sensor and the second sensor are both installed on the CT device and are used to acquire first position information and second position information of the CT component respectively; the first sensor and the second sensor are both sensors used to acquire lifting position information and longitudinal position information of the CT bed and rotation angle information and inclination angle information of the CT gantry; the MCU is connected with the first sensor and the second sensor respectively and is used to compare the first position information and the second position information so as to control the CT device to stop working when the difference between the first position information and the second position information exceeds a preset tolerance range.

[0045] The first sensor and the second sensor are both installed on the CT device and the specific installation position is not limited; in general, in order to better compare the first position information and the second position information, the first sensor and the second sensor are installed at the same position; in general, the first sensor and the second sensor both comprise a bed lifting position sensor, a bed longitudinal position sensor of the CT bed and a gantry rotation angle sensor, a gantry inclination angle sensor of the CT gantry; and are used to acquire lifting position information and longitudinal position information of the CT bed and rotation angle information and inclination angle information of the CT gantry respectively; the above information is the acquired position information, wherein the position information acquired by the first sensor is the first position information and the position information acquired by the second sensor is the second position information. It should be noted that the MCU mentioned above is not limited in number and one MCU can be used to complete all the work or two MCUs can be used to complete the respective work. If two MCUs are used, i.e. the MCU comprises a first MCU and a second MCU, the first MCU is connected with the first sensor, the second MCU is connected with the second sensor and the second MCU is further connected with the first MCU to receive the first position information sent by the first MCU. Then the second MCU will receive the first position information sent by the first MCU and the second position information acquired by the second sensor and finally the comparison of the first position information and the second position information is completed by the second MCU. In general, due to the detection error of the sensor or the calculation error of the MCU, the first position information and the second position information obtained finally will have a certain difference, therefore, when the difference between the two position information is greater than the preset tolerance range, the CT device needs to be controlled to stop working and the specific size of the tolerance range is not limited. In addition, if two MCUs are used, the first MCU, the first sensor, the second MCU and the second sensor can be powered by their own independent power supply respectively to prevent the use of one power supply from causing the final obtained result to be incorrect.

[0046] For the convenience of distinguishing, the circuit is divided into control circuit and protection circuit, the control circuit is used for controlling CT device normal work, the protection circuit is used for controlling CT device stop working when the difference of two position information is greater than the preset tolerance range. The control circuit mainly includes first MCU, first sensor and SC / RC computer which sends control instruction; the protection circuit mainly includes second MCU and second sensor; the control circuit and the protection circuit both include motor driver and motor. CT bed and CT gantry have their own control circuit and protection circuit respectively.

[0047] Figure 1 The structure diagram of the control circuit of CT bed; including CT bed's first MCU 10, CT bed's motor driver 11, CT bed's motor 12, photo-coupler 13, CT bed's control chip 14; CT bed's first MCU 10 sends control signal to control CT bed's motor driver 11, to drive CT bed's motor 12 normal work; CT bed's first MCU 10 is connected with CT bed's control chip 14 through photo-coupler 13, to realize photoelectric isolation. In fact, CT bed's first MCU 10 is also connected with SC / RC computer 23, to realize communication with SC / RC computer 23, CT bed's first MCU 10 is also connected with CT bed's first sensor, to receive first position information.

[0048] Figure 2 The structure diagram of the protection circuit of CT bed; including CT bed's second MCU 15, CT bed's second sensor 16, solid state relay 17, relay 18; CT bed's second MCU 15 is connected with CT bed's second sensor 16, to receive second position information acquired by CT bed's second sensor 16, CT bed's motor driver 11 is connected with relay 18, relay 18 is connected with solid state relay 17, one end of solid state relay 17 is connected with 24V power supply; CT bed's second MCU 15 is connected with solid state relay 17, to control solid state relay 17 to conduct or turn off.

[0049] Figure 3 The structure diagram of the control circuit of CT gantry; including CT gantry's first MCU 19, CT gantry's motor driver 20, CT gantry's motor 21, CT gantry's first sensor 22, SC / RC computer 23; similar to the control circuit structure of CT bed, CT gantry's first MCU 19 is connected with SC / RC computer 23, CT gantry's first MCU 19 sends control signal to control CT gantry's motor driver 20, to drive CT gantry's motor 21 normal work. CT gantry's first MCU 19 is also connected with CT gantry's first sensor 22, to receive first position information.

[0050] Figure 4The structure schematic diagram of the protection circuit of the CT gantry; the motor driver 20 of the CT gantry, the motor 21 of the CT gantry, the second MCU 24 of the CT gantry, the second sensor 25 of the CT gantry; the second MCU 24 of the CT gantry is connected with the second sensor 25 of the CT gantry, and is used for receiving the second position information acquired by the second sensor 25 of the CT gantry. The second MCU 24 of the CT gantry is also connected with the motor driver 20 of the CT gantry, because the CT gantry is in high-speed rotation when working, and direct power-off may cause serious accidents, therefore the second MCU 24 of the CT gantry controls the motor driver 20 of the CT gantry to stop running in the form of sending a stop instruction.

[0051] The CT device provided in the application comprises an MCU, a first sensor, a second sensor, a CT bed and a CT gantry. The first sensor and the second sensor are both installed on the CT device, and are used for acquiring first position information and second position information of the CT bed and the CT gantry respectively. The MCU is connected with the first sensor and the second sensor respectively, and is used for comparing the first position information with the second position information. The MCU controls the motor driver to work according to the first position information of the CT bed and the CT gantry sent by the first sensor. If the gap between the first position information and the second position information exceeds a preset tolerance range, it indicates that the sensor or the MCU is faulty, and the motor driver should be controlled to stop working. The first sensor and the second sensor are both sensors for acquiring lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry. The CT device provided in the application improves its safety performance through self-checking, and avoids threatening the life safety of patients.

[0052] In the above embodiment, the specific types of the first sensor and the second sensor are not limited. The embodiment of the application provides a scheme, the first sensor and the second sensor both comprise a bed lifting position potentiometer, a bed longitudinal position potentiometer, a gantry rotation angle potentiometer and a gantry inclination angle potentiometer. Since two sets of sensors are used in the embodiment of the application, the cost is relatively high, therefore, the potentiometer is selected to save the cost.

[0053] It is assumed that a single MCU is used to complete all work. In actual application, if the MCU is faulty, the obtained first position information and second position information are the same, but actually the first position information and the second position information may both be incorrect position information. Therefore, the MCU comprises a first MCU and a second MCU, wherein the first MCU is connected with the first sensor, and the second MCU is connected with the second sensor. The second MCU is connected with the first MCU, and is used for receiving the first position information sent by the first MCU. Two MCUs are used in the embodiment of the application, which can avoid the situation that the obtained position information is incorrect due to the fault of the single MCU itself when the single MCU is used.

[0054] In actual application, if it is determined that the position information obtained by the MCU is incorrect, the CT device needs to be controlled to stop working, specifically, the CT bed and the CT gantry of the CT device are controlled to stop running, therefore, the CT device further comprises a solid-state relay, the motor driver of the CT bed is connected with the power supply of itself through the solid-state relay, the second MCU is connected with the solid-state relay, and the solid-state relay is controlled to be disconnected when the difference between the first position information and the second position information exceeds the preset tolerance range. It is mentioned in the above embodiment that the CT bed usually has two motor drivers, and the two motor drivers can be connected with the relay, the relay is further connected with the solid-state relay, the other end of the solid-state relay can be connected with a voltage of 24 V, and when the difference between the first position information and the second position information exceeds the preset tolerance range, it indicates that the position information obtained by the sensor is incorrect, and the CT bed needs to be stopped, that is, the solid-state relay is controlled to be disconnected. The scheme provided in the embodiment of the application can control the CT bed to stop running in time, and ensure the safety of the patient.

[0055] It is worth noting that in the embodiment of the application, only the motor driver of the CT bed is connected with the power supply of itself through the relay, because the CT gantry rotates at high speed when working, and direct power-off may cause serious accidents. When the CT gantry needs to be stopped, the second MCU controls the CT gantry to stop running by sending a stop instruction.

[0056] Usually, the CT bed and the CT gantry each have a control chip, the first MCU communicates with the control chip, and the corresponding motor driver is controlled to work by the control chip, in order to prevent mutual influence between the control chip and the first MCU, the CT device further comprises an optical coupler, and the control chip of the CT bed and the control chip of the CT gantry are connected with the first MCU through the optical coupler. The control chip and the first MCU can be optoelectronically isolated.

[0057] In order to prevent the first position information and the second position information from being consistent due to failure of the power supply when the same power supply is used, the first MCU and the first sensor are powered by a first power supply, and the second MCU and the second sensor are powered by a second power supply. If one of the power supplies fails, the first position information and the second position information will have a difference.

[0058] It is mentioned in the above embodiment that the first sensor and the second sensor are potentiometers, and in addition to using potentiometers, the embodiment of the application provides another scheme, the first sensor and the second sensor each comprise a bed lifting position encoder, a bed longitudinal position encoder, a gantry rotation angle encoder and a gantry inclination angle encoder, and accurate position information can be obtained.

[0059] The embodiment of the application provides a control method of a CT device, which is applied to the CT device in the above embodiment. Figure 5A flow chart of a control method of a CT device provided in an embodiment of the present application; the method comprises the following steps:

[0060] S10: receiving first position information and second position information of the CT component acquired by the first sensor and the second sensor, the first sensor and the second sensor are sensors acquiring lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry;

[0061] S11: comparing the first position information and the second position information, so as to control the CT device to stop working when the difference between the first position information and the second position information exceeds a preset tolerance range.

[0062] Since the embodiments of the method part correspond to the embodiments of the CT device part, the embodiments of the method part are described in the description of the embodiments of the CT device part, and will not be described here.

[0063] The control method of the CT device provided in the embodiment corresponds to the CT device described above, and therefore has the same beneficial effects as the CT device described above.

[0064] In the above embodiments, it is not limited when the first position information and the second position information are compared. The detection condition can be set in advance, and the step of comparing the first position information and the second position information is entered when the detection condition is met. The detection condition comprises at least one of the following: receiving a detection signal; the CT device is powered on; the CT device is powered on every preset time interval. The detection signal can be sent to the MCU when the CT device needs to be repaired, and the MCU starts to compare the first position information and the second position information, so as to determine whether the first sensor and the second sensor are faulty. The comparison can also be performed when the CT device is powered on, or once every preset time interval after the CT device is powered on, so as to monitor the sensors for a long time.

[0065] In the method provided in the embodiment of the present application, the MCU includes a first MCU and a second MCU, and after the CT device is started, communication detection between the first MCU is started. In addition, communication detection between the SC / RC computer and the first MCU is also performed. Assuming that the SC / RC computer is a master station and the first MCU is a slave station, the master station periodically inspects the slave station, each slave station has a unique ID number, and when the slave station receives the inspection command of the master station, the slave station must respond within 50 ms. When the slave station submits information, if no response is obtained within the specified time (3 times of the inspection period), the communication is considered to be faulty, and the slave station enters an abnormal state and is prohibited from operating. The master communication protocol adopts a command+control word+Echo and Session Count mode. For each sent information Session Count, the first MCU also feeds back Session Count, and if the sum of the two sent and the feedback is consistent, the sent command is considered to be valid. The embodiment of the present application performs communication detection between each communication device after the CT device is started, to prevent communication faults of the CT device during operation.

[0066] In the above embodiment, the control method of the CT device is described in detail, and the present application also provides a corresponding embodiment of the control device of the CT device. It should be noted that the embodiment of the device part is described from two angles, one is based on the functional module, and the other is based on the hardware.

[0067] Based on the functional module, the embodiment provides a control device of a CT device, which is applied to the CT device described above, Figure 6 The structural diagram of the control device of the CT device provided in the embodiment of the present application is shown in Figure 6 The device includes:

[0068] The receiving module 30 is configured to receive first position information and second position information of the CT component acquired by the first sensor and the second sensor, the first sensor and the second sensor are sensors configured to acquire lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry;

[0069] The comparison module 31 is configured to compare the first position information and the second position information, so that when the difference between the first position information and the second position information exceeds a preset tolerance range, the CT device is controlled to stop working.

[0070] Since the embodiment of the device part corresponds to the embodiment of the method part, the embodiment of the device part is described with reference to the description of the embodiment of the method part, which is not described here.

[0071] The control device of the CT device provided in the embodiment corresponds to the above method, and has the same beneficial effects as the above method.

[0072] Based on the hardware, the embodiment provides another control device of the CT device, Figure 7 The structure diagram of the control device of the CT device provided by another embodiment of the present application is shown in Figure 7 The control device of the CT device includes: a memory 40, configured to store a computer program;

[0073] A processor 41 is configured to execute the computer program to implement the steps of the control method of the CT device mentioned in the above embodiments.

[0074] The control device of the CT device provided by the embodiment can include but is not limited to a smart phone, a tablet computer, a notebook computer or a desktop computer, etc.

[0075] The processor 41 can include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 41 can be implemented in at least one of a hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), a programmable logic array (PLA). The processor 41 can also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 41 can be integrated with a graphics processor (GPU) for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 41 can also include an artificial intelligence (AI) processor for processing machine learning-related computing operations.

[0076] The memory 40 can include one or more computer-readable storage media. The memory 40 can also include high-speed random access memory and non-volatile, computer-readable storage media such as one or more magnetic disk storage devices, flash memory devices. In this embodiment, the memory 40 is used to store at least the following computer program 401, wherein the computer program is loaded and executed by the processor 41, and can realize the related steps of the control method of the CT device disclosed in any of the preceding embodiments. In addition, the resources stored in the memory 40 can also include an operating system 402 and data 403, etc., and the storage mode can be temporary storage or permanent storage. The operating system 402 can include Windows, Unix, Linux, etc. The data 403 can include but is not limited to data related to the control method of the CT device, etc.

[0077] In some embodiments, the control device of the CT device can further include a display screen 42, an input / output interface 43, a communication interface 44, a power supply 45, and a communication bus 46.

[0078] Those skilled in the art can understand that the structure shown in the figure does not constitute a limitation on the control device of the CT device, and can include more or fewer components than those shown in the figure.

[0079] The control device of the CT device provided by the embodiment of the present application includes a memory and a processor, and the processor can realize the following method when executing the program stored in the memory: the control method of the CT device.

[0080] The control device of the CT device provided by the embodiment of the present application corresponds to the above method, and therefore has the same beneficial effects as the above method.

[0081] Finally, the present application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, and the computer program is executed by the processor to realize the steps recorded in the above method embodiment.

[0082] It can be understood that if the method in the above embodiment is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part of the prior art that contributes to the technical solutions or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and performs all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0083] The computer readable storage medium provided by the embodiment has the same beneficial effects as the above method.

[0084] The CT device, the control method of the CT device, the device, and the medium provided by the present application are described in detail above. Each embodiment in the specification is described in a progressive manner, and each embodiment mainly describes the differences from other embodiments. The same or similar parts of each embodiment can be referred to. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified, and these improvements and modifications also fall within the protection scope of the claims of the present application.

[0085] It should be further noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the above element.

Claims

1. A CT apparatus characterized by comprising: Including MCU, first sensor, second sensor, CT component, solid state relay, optical coupling;The CT component includes CT bed, CT rack; The first sensor and the second sensor are installed on the CT device, and are used for acquiring first position information and second position information of the CT component respectively, the first sensor and the second sensor are sensors for acquiring lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT rack; The MCU is connected with the first sensor and the second sensor respectively, and is used for comparing the first position information with the second position information, so that when the difference between the first position information and the second position information exceeds a preset tolerance range, the CT device is controlled to stop working; The MCU includes a first MCU and a second MCU, wherein the first MCU is connected with the first sensor, the second MCU is connected with the second sensor;The second MCU is connected with the first MCU, and is used for receiving the first position information sent by the first MCU; The motor driver of the CT bed is connected with its power supply through the solid state relay;The second MCU is connected with the solid state relay, and when the difference between the first position information and the second position information exceeds the preset tolerance range, the solid state relay is controlled to be disconnected;The control chip of the CT bed and the CT rack is connected with the first MCU through the optical coupling; The power supply of the first MCU and the first sensor is a first power supply, and the power supply of the second MCU and the second sensor is a second power supply.

2. The CT apparatus of claim 1, wherein The first sensor and the second sensor both include: Bed lifting position potentiometer, bed longitudinal position potentiometer, rack rotation angle potentiometer and rack inclination angle potentiometer.

3. The CT apparatus of claim 1, wherein The first sensor and the second sensor both include: Bed lifting position encoder, bed longitudinal position encoder, rack rotation angle encoder and rack inclination angle encoder.

4. A control method of a CT apparatus, characterized by, The method applied to the CT device of any one of claims 1 to 3, the method comprises: Receiving first position information and second position information of the CT component acquired by the first sensor and the second sensor, the first sensor and the second sensor are sensors for acquiring lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT rack; Comparing the first position information with the second position information, so that when the difference between the first position information and the second position information exceeds a preset tolerance range, the CT device is controlled to stop working;Specifically, when the difference between the first position information and the second position information exceeds the preset tolerance range, the solid state relay is controlled to be disconnected.

5. A control device of a CT apparatus, characterized by, The control device applied to the CT device of any one of claims 1 to 3, the control device comprises: The receiving module is configured to receive first position information and second position information of a CT component acquired by a first sensor and a second sensor, wherein the first sensor and the second sensor are sensors configured to acquire lifting position information and longitudinal position information of the CT bed, and rotation angle information and inclination angle information of the CT gantry; The comparing module is configured to compare the first position information and the second position information, so as to control the CT device to stop working when a difference between the first position information and the second position information exceeds a preset tolerance range.

6. A control device of a CT apparatus, characterized by comprising: The computer program is stored in the memory. The processor is configured to execute the computer program to implement the steps of the control method of the CT device according to claim 4.

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