Data transmission device and CT scanning system

Abstract

The utility model relates to a data transmission device and a CT scanning system. The data transmission device is applied to CT equipment. The data transmission device comprises an optical signal transmitting module which is arranged on the CT equipment and is used for receiving a to-be-transmitted data signal detected by a detector of the CT equipment and transmitting the to-be-transmitted data signal through a first optical signal; the first optical signal carries a to-be-transmitted data signal; and the relay module and the optical signal transmitting module are separately arranged, and the relay module is used for receiving the first optical signal, converting the first optical signal and transmitting the processed signal to the terminal. The data transmission device provided by the utility model is simple in structure, can replace a data transmission ring or a coupled antenna in a transmission slip ring, and can reduce the cost. In addition, the anti-electromagnetic interference capability of the CT equipment and the data transmission device is improved.

Description

Technical Field

[0001] This application relates to the field of CT equipment technology, and in particular to a data transmission device and a CT scanning system. Background Technology

[0002] Computed tomography (CT) is an extremely important medical imaging diagnostic tool, widely used due to its fast scanning time and clear images.

[0003] In traditional technology, when the detector in a CT scanner sends the detected signal to the terminal, it is usually achieved through a data transmission device formed by at least one pair of precision antennas (the transmitting antenna is on the rotor side and the receiving antenna is on the stator side of the CT scanner) mounted around the rotor of the CT scanner.

[0004] However, data transmission devices formed by at least a pair of precision antennas in conventional technologies are expensive. Utility Model Content

[0005] Therefore, it is necessary to provide a data transmission device and a CT scanning system that can reduce costs in response to the above-mentioned technical problems.

[0006] In a first aspect, one embodiment of this application provides a data transmission device applied to a CT scanner, the data transmission device comprising:

[0007] An optical signal transmitting module, installed in a CT scanner, is used to receive the data signal to be transmitted detected by the detector of the CT scanner, and to transmit the data signal to be transmitted through a first optical signal; the first optical signal carries the data signal to be transmitted.

[0008] The relay module, which is set separately from the optical signal transmitting module, is used to receive the first optical signal, convert and process the first optical signal, and transmit the processed first signal to the terminal.

[0009] In one embodiment, the optical signal transmitting module includes a power supply component, a first processing component, and a first laser, wherein the power supply component is connected to the first processing component and the first laser, and the first processing component is connected to the first laser.

[0010] A power supply component for providing a first voltage signal to the first processing component;

[0011] The first processing component is used to receive the data signal to be transmitted and to modulate the data signal to be transmitted and the first voltage signal.

[0012] A first laser is used to emit a first optical signal under the excitation of a modulated first voltage signal.

[0013] In one embodiment, the relay module includes:

[0014] The first photoelectric conversion component is communicatively connected to the terminal and is used to receive the first optical signal, convert and demodulate the first optical signal, and transmit the processed first signal to the terminal.

[0015] In one embodiment, the data transmission device further includes: a terminal receiving module, disposed on the CT device and connected between the relay module and the terminal;

[0016] The relay module is used to convert and demodulate the first optical signal to obtain the data signal to be transmitted, and then transmit the data signal to be transmitted through the second optical signal; the second optical signal carries the data signal to be transmitted.

[0017] The terminal receiving module is used to receive the second optical signal, convert and demodulate the second optical signal, and transmit the processed second signal to the terminal.

[0018] In one embodiment, the relay module includes: a second photoelectric conversion component, a second processing component, and a second laser, wherein the second photoelectric conversion component is connected to the second processing component, and the second processing component is connected to the second laser;

[0019] The second photoelectric conversion component is used to convert the first optical signal into a first analog signal and transmit the first analog signal to the second processing component;

[0020] The second processing component is used to perform analog-to-digital conversion and demodulation on the first analog signal to obtain the data signal to be transmitted; and to obtain the second voltage signal and perform modulation processing on the data signal to be transmitted and the second voltage signal.

[0021] The second laser is used to emit a second optical signal under the excitation of a modulated second voltage signal.

[0022] In one embodiment, the terminal receiving module includes: a third photoelectric conversion component and a third processing component, wherein the third photoelectric conversion component is connected to the third processing component;

[0023] The third photoelectric conversion component is used to receive the second optical signal, convert the second optical signal into a second analog signal, and transmit the second analog signal to the third processing component;

[0024] The third processing component is used to receive the second analog signal, perform analog-to-digital conversion and demodulation on the second analog signal, and transmit the processed second signal to the terminal.

[0025] In one embodiment, the terminal includes a control board and a display screen. The control board is disposed on the CT device, connected to the display screen, and connected to a relay module or a terminal receiving module.

[0026] The control board is used to receive the processed first signal or the processed second signal, reconstruct the processed first signal or the processed second signal to obtain a medical scan image, and transmit the medical scan image to the display screen.

[0027] A display screen used to show medical scan images.

[0028] In one embodiment, the optical signal transmitting module is used to receive the raw image data detected by the detector of the CT device, and to perform serial-to-parallel conversion on the raw image data to obtain the data signal to be transmitted.

[0029] The third processing component is used to receive the second analog signal, perform analog-to-digital conversion and demodulation processing on the second analog signal, obtain the data signal to be transmitted, and send the data signal to be transmitted to the control board.

[0030] The control board is used to perform parallel-to-serial conversion on the data signal to be transmitted, obtain the original image data, and reconstruct the original image data to obtain the medical scan image.

[0031] Secondly, one embodiment of this application provides a CT scanning system, which includes a CT device, the CT device comprising:

[0032] On the stator side, a fixed frame is provided;

[0033] On the rotor side, a rotating frame is provided, on which a ball tube and a detector are provided. The ball tube and the detector are arranged opposite to each other. The rotating frame is rotatably mounted on a fixed frame, and the ball tube and the detector rotate with the rotating frame.

[0034] A power ring is a connection and coupling mechanism used for power transmission between the stator side and the electronic side.

[0035] The optical signal transmitting module is mounted on the rotating frame and rotates with the frame. It is used to receive the data signal to be transmitted detected by the detector and transmit the data signal to be transmitted to the outside of the CT equipment through the first optical signal.

[0036] In one embodiment, the CT scanning system further includes a relay module, which is separately configured from the CT device and located on the rotation center axis of the CT device. The relay module is used to receive the first optical signal emitted by the optical signal transmitting module, convert the first optical signal, and transmit the processed signal to the terminal.

[0037] This application provides a data transmission device and a CT scanning system. The data transmission device is applied to a CT scanner and includes an optical signal transmitting module and a relay module. The optical signal transmitting module is disposed within the CT scanner and is used to receive the data signal to be transmitted detected by the CT scanner's detectors, and transmit the data signal to be transmitted via a first optical signal; the first optical signal carries the data signal to be transmitted. The relay module is separately disposed from the optical signal transmitting module and is used to receive the first optical signal, convert and process it, and transmit the processed first signal to a terminal. In this embodiment, the communication connection between the CT scanner and the terminal is achieved through a data transmission device including an optical signal transmitting module and a relay module. Compared with the precision antennas installed in traditional technologies, the data transmission device provided in this embodiment does not rely on the ring mechanical structure of the CT scanner's slip ring, has a simple structure, low cost, is easy to install and maintain, and has higher maintainability, serviceability, and practicality. In addition, in this embodiment, the data signal to be transmitted is transmitted point-to-point between the optical signal transmitting module and the relay module, which can reduce the bit error rate of the data signal transmission and increase the signal transmission rate. Furthermore, the data signal to be transmitted is not subject to electrical interference, which can improve the electromagnetic compatibility (EMC) immunity, thereby improving the quality of the image reconstructed by the subsequent terminal using the data signal to be transmitted. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of the structure of a data transmission device provided in one embodiment;

[0040] Figure 2 A schematic diagram of the structure of a data transmission apparatus provided for another embodiment;

[0041] Figure 3 A schematic diagram of the structure of an optical signal transmitting module provided in one embodiment;

[0042] Figure 4 A schematic diagram of the structure of a relay module provided in one embodiment;

[0043] Figure 5 A schematic diagram of the structure of a data transmission apparatus provided for another embodiment;

[0044] Figure 6A schematic diagram of the relay module provided in another embodiment;

[0045] Figure 7 A schematic diagram of a light spot provided for one embodiment;

[0046] Figure 8 A schematic diagram of the structure of a terminal receiving module provided in one embodiment;

[0047] Figure 9 A schematic diagram of the structure of a data transmission apparatus provided for another embodiment;

[0048] Figure 10 A perspective view of a CT device provided in one embodiment;

[0049] Figure 11 A side view of a CT device provided in one embodiment;

[0050] Figure 12 A front view of a CT device provided in one embodiment;

[0051] Figure 13 A schematic diagram of the structure of a CT scanning system provided in one embodiment.

[0052] Explanation of reference numerals in the attached figures:

[0053] 10. Data transmission device; 20. CT equipment; 30. Terminal; 31. Control board; 32. Display screen; 100. Optical signal transmitting module; 110. Power supply assembly; 120. First processing assembly; 130. First laser; 200. Relay module; 210. First photoelectric conversion assembly; 220. Second photoelectric conversion assembly; 230. Second processing assembly; 240. Second laser; 300. Terminal receiving module; 310. Third photoelectric conversion assembly; 320. Third processing assembly. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used solely for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] First, before introducing the technical solutions of the embodiments disclosed in this application, the background technology or technological evolution on which the embodiments of this application are based will be introduced. With the development of society and technology, the application of medical devices is becoming more and more widespread. For example, computed tomography (CT) is an extremely important medical imaging diagnostic tool, which is widely used due to its fast scanning time and clear images. The imaging process of CT equipment includes: an X-ray tube set on the rotor of the CT equipment, which rotates in a ring around the imaging object as the rotor of the CT equipment rotates, and emits an X-ray beam towards the imaging object. At the position opposite to the X-ray tube, a detector array is installed. The detector can accurately capture the X-rays after penetrating the imaging object. After receiving the X-ray signal, the detector transmits the X-ray signal to the terminal so that the terminal can process the X-ray signal to obtain a CT image. In the conventional technology, X-ray signals are transmitted through a data transmission device based on capacitive coupling antennas formed by at least a pair of precision antennas arranged around the rotor of the CT equipment. The pair of precision antennas includes a transmitting antenna set on the rotor of the CT equipment and a receiving antenna set on the stator of the CT equipment. However, traditional data transmission devices based on capacitively coupled antennas have high installation costs, are complex to install, and are difficult to maintain. Therefore, this application provides a data transmission device.

[0058] The technical solution of this application and how it solves the technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0059] Please see Figure 1 One embodiment of this application provides a data transmission device 10, which is applied to a CT device 20. The data transmission device 10 includes an optical signal transmitting module 100 and a relay module 200.

[0060] An optical signal transmitting module 100 is disposed on the CT device 20 and is used to receive the data signal to be transmitted detected by the detector of the CT device 20, and to transmit the data signal to be transmitted through a first optical signal; the first optical signal carries the data signal to be transmitted. A relay module 200 is disposed on the CT device 20 and is used to receive the first optical signal, convert and process the first optical signal, and transmit the processed first signal to the terminal 30. When the CT device 20 is a rotary type, that is, when the CT device 20 includes a rotor side, the optical signal transmitting module 100 is disposed on the rotor side of the CT device 20, and the relay module 200 is disposed on the rotational central axis of the CT device.

[0061] The detector in the CT device 20 is communicatively connected to the optical signal transmitting module 100. The detector in the CT device 20 and the optical signal transmitting module 100 are connected by a wire. If the optical signal transmitting module 100 is located on the rotor side of the CT device 20, the optical signal transmitting module 100 will rotate as the rotor of the CT device 20 rotates. After the X-ray tube of the CT device 20 emits X-rays, the detector in the CT device 20 will detect the X-ray signal passing through the imaging object, i.e., the data signal to be transmitted, and transmit this data signal to the optical signal transmitting module 100.

[0062] After receiving the data signal to be transmitted, the optical signal transmitting module 100 processes the data signal and then transmits it as a first optical signal. In other words, the optical signal transmitting module 100 modulates and encodes the data signal to be transmitted, ensuring that the transmitted first optical signal carries the data signal to be transmitted. This embodiment does not limit the structure of the optical signal transmitting module 100, as long as its function is achieved.

[0063] When the CT device 20 is not a rotating type, the relay module 200 is separately configured from the optical signal transmitting module 100, meaning that the relay module 200 is not installed on the CT device. This embodiment does not restrict the placement of the relay module 200 outside the CT device, as long as it can receive the first optical signal.

[0064] When the CT device 20 is a rotary type, the rotor in the CT device 20 rotates around the central axis of rotation. The relay module 200 is positioned on the central axis of rotation of the CT device 20, so that the first optical signal emitted by the optical signal transmitting module 100 during the rotation of the CT device 20's rotor can be received by the relay module 200. The relay module 200 and the optical signal transmitting module 100 are spaced apart and connected via optical signals. The relay module 200 can be mounted on a wall adjacent to the CT device 20 and opposite to the optical signal transmitting module 100. This embodiment does not limit the distance between the relay module 200 and the optical signal transmitting module 100, as long as the relay module 200 can receive the first optical signal emitted by the optical signal transmitting module 100.

[0065] like Figure 1 As shown, during the complete 360-degree rotation of the optical signal transmitting module 100 with the rotor of the CT equipment, the trajectory of the first optical signal emitted can form a "cone" structure. The central axis of this cone structure coincides with the central axis of the CT equipment. The circumference at the bottom of the cone structure represents the position traversed by the optical signal transmitting module 100, and the apex of the cone structure represents the location of the relay module 200. Specifically, as... Figure 2 As shown, Figure 2 The lower image is a side view of the CT scanner, and the upper image is an enlarged view of a portion of the CT scanner where the light signal emitting module 100 is located. The Z-axis is the rotation center axis of the CT scanner. From Figure 2 It can be seen from this that the angle between the trajectory of the first light signal and the plane where the CT equipment is located is... The angle between the trajectory of the first light signal and the ground is... Optionally, 60 degrees or greater It can be 75 degrees, corresponding to It is 15 degrees.

[0066] After receiving the first optical signal, the relay module 200 processes the signal and transmits it to the terminal 30. This embodiment does not limit the specific process by which the relay module 200 processes the first optical signal, as long as its function is achieved. The terminal 30 can be integrated with the CT device 20 or externally connected to the CT device 20. This embodiment does not limit the type or structure of the terminal 30. The terminal 30 can be, but is not limited to, a computer device, a laptop computer, a tablet computer, etc.; it can also be a display screen.

[0067] In one optional embodiment, after receiving the first optical signal, the relay module 200 converts the first optical signal into an electrical signal and directly transmits the electrical signal to the terminal 30. The terminal 30 then performs conversion, demodulation, and reconstruction processing on the received electrical signal to obtain a medical scan image, which is then displayed on the terminal 30's screen. In this case, the terminal 30 can be a computer device, such as a laptop or tablet computer. Alternatively, after receiving the first optical signal, the relay module 200 converts the first optical signal into an electrical signal, performs conversion, demodulation, and reconstruction processing on the converted electrical signal to obtain a medical scan image, and transmits the medical scan image to the terminal 30 for display. In this case, the terminal 30 is a display screen.

[0068] The working principle of the data transmission device 10 provided in this embodiment is as follows:

[0069] A control signal is sent to the CT scanner to control the X-ray tube in the CT scanner to emit X-ray signals towards the imaging object located on the scanning table. The detector in the CT scanner receives the X-ray signal passing through the imaging object, which is the data signal to be transmitted, and transmits the data signal to the optical signal transmitting module 100. After receiving the data signal to be transmitted, the optical signal transmitting module 100 processes the data signal to be transmitted and then transmits it as a first optical signal. The relay module 200 receives the first optical signal transmitted by the optical signal transmitting module 100, converts the first optical signal, and transmits the processed first signal to the terminal 30. After receiving the processed signal, the terminal 30 can acquire the data signal to be transmitted, reconstruct the CT image of the imaging object based on the data signal to be transmitted, and display the CT image for clinical diagnosis.

[0070] The data transmission device 10 provided in this embodiment is applied to a CT scanner. The data transmission device 10 includes an optical signal transmitting module 100 and a relay module 200. The optical signal transmitting module 100 is disposed on the CT scanner 20 and is used to receive the data signal to be transmitted detected by the detector of the CT scanner 20, and transmit the data signal to be transmitted through a first optical signal; the first optical signal carries the data signal to be transmitted. The relay module 200 is separately disposed from the optical signal transmitting module 100 and is used to receive the first optical signal, convert the first optical signal, and transmit the processed first signal to the terminal 30. In this embodiment, the communication connection between the CT scanner 20 and the terminal 30 is realized through the data transmission device 10, which includes the optical signal transmitting module 100 and the relay module 200. Compared with the precision antenna installed in traditional technologies, the data transmission device 10 provided in this embodiment does not rely on the ring mechanical structure of the slip ring of the CT scanner 20, has a simple structure, low cost, is easy to install and maintain, and has higher maintainability, serviceability, and practicality. In addition, in this embodiment, the data signal to be transmitted is transmitted point-to-point between the optical signal transmitting module 100 and the relay module 200, which can reduce the bit error rate of the data signal transmission and increase the signal transmission rate. Furthermore, the data signal to be transmitted is not subject to electrical interference, which can improve the electromagnetic compatibility (EMC) immunity, thereby improving the quality of the medical image reconstructed by the subsequent terminal 30 through the data signal to be transmitted.

[0071] In one embodiment, such as Figure 3 As shown, the optical signal transmitting module 100 includes a power supply component 110, a first processing component 120, and a first laser 130. The power supply component 110 is connected to the first processing component 120 and the first laser 130, and the first processing component 120 is connected to the first laser 130.

[0072] The power supply assembly 110 is electrically connected to both the first processing assembly 120 and the first laser 130. The power supply assembly 110 may be a power supply shared with the CT equipment 20, or it may be a power supply assembly connected to the power supply device of the CT equipment 20. The power supply assembly 110 provides a first voltage signal to the first processing assembly 120 and provides electrical energy to both the first processing assembly 120 and the first laser 130.

[0073] The first processing component 120 is used to receive the data signal to be transmitted and to modulate the data signal to be transmitted and the first voltage signal. In other words, the first processing component 120 changes certain characteristics of the first voltage signal provided by the power supply component 110, such as amplitude, frequency, and phase, to make it change according to the pattern of the data signal to be transmitted, thereby making the first voltage signal carry the data signal to be transmitted. The modulation processing of the data signal to be transmitted and the first voltage signal can be any one of amplitude modulation, frequency modulation, and phase modulation, and this embodiment does not limit this. The first processing component 120 can be a processing chip. This embodiment does not limit the structure and type of the first processing component 120, as long as it can achieve its function.

[0074] The first laser 130 is used to emit a first optical signal under the excitation of a modulated first voltage signal. The modulated first voltage signal carries a data signal to be transmitted, and the first optical signal emitted by the first laser 130 under the excitation of the modulated first voltage signal also carries the data signal to be transmitted. The first laser 130 can be any one of a solid-state laser, a gas laser, a semiconductor laser, a liquid laser, a chemical laser, and a fiber laser. This embodiment does not limit the type and structure of the first laser 130, as long as it can achieve its function.

[0075] In this embodiment, the optical signal transmitting module 100 includes a power supply component 110, a first processing component 120, and a first laser 130. The power supply component 110 is connected to the first processing component 120 and the first laser 130, and the first processing component 120 is connected to the first laser 130. The power supply component 110 can provide a first voltage signal to the first processing component 120, so that the first processing component 120 modulates the data signal to be transmitted and the first voltage signal. Under the excitation of the modulated first voltage signal, the first laser 130 can emit a first optical signal carrying the data signal to be transmitted. In this way, the first optical signal carrying the data signal to be transmitted is not subject to electrical interference, which can reduce the bit error rate of transmitting the data signal to be transmitted and improve the efficiency of transmitting the data signal to be transmitted. Furthermore, the optical signal transmitting module 100 provided in this embodiment has a simple structure, is easy to obtain, and has low cost.

[0076] In an optional embodiment, the optical signal transmitting module 100 can modulate the data signal to be transmitted by means of switching modulation. That is, the optical signal transmitting module 100 transmitting the first optical signal represents "0", and the optical signal transmitting module 100 not transmitting the first optical signal represents "1".

[0077] In one embodiment, such as Figure 4As shown, the relay module 200 includes a first photoelectric conversion component 210. The first photoelectric conversion component 210 is communicatively connected to the terminal 30, and is used to receive a first optical signal, convert and demodulate the first optical signal, and transmit the processed first signal to the terminal 30. The first photoelectric conversion component 210 and the terminal 30 can be connected via cable or wirelessly. This embodiment does not limit the communication method between the first photoelectric conversion component 210 and the terminal 30, as long as its function can be achieved. Figure 4 The solid line extending from the first photoelectric conversion component 210 represents the trajectory of the first optical signal, and the dashed line represents the rotation center axis of the CT device 20. The angle between the trajectory of the first optical signal and the rotation center axis is... . Less than or equal to 40 degrees, specifically, It can be 15 degrees.

[0078] The first photoelectric conversion component 210 can be a photovoltaic cell array. The first photoelectric conversion component 210 can receive the first optical signal emitted by the optical signal transmitting module 100, convert the first optical signal into an analog electrical signal, perform analog-to-digital conversion on the analog signal, and demodulate the digital-to-analog converted signal to obtain the processed first signal, i.e., the data signal to be transmitted, and directly transmit the data signal to be transmitted to the terminal 30.

[0079] The first photoelectric conversion component 210 may include a photovoltaic cell array and a first processing unit, with the photovoltaic cell array connected to the first processing unit. The photovoltaic cell array converts the received first optical signal into an analog electrical signal and transmits the analog electrical signal to the processing unit. The first processing unit performs analog-to-digital conversion and demodulation processing on the analog electrical signal to obtain the data signal to be transmitted, and then transmits the data signal to the terminal 30. Specifically, the first processing unit may be a digital signal processor (DSP). This embodiment does not limit the structure and type of the first photoelectric conversion component 210, as long as it can achieve its function.

[0080] In this embodiment, the relay module 200 includes a first photoelectric conversion component 210, which can convert and demodulate the received first optical signal and transmit the processed first signal to the terminal 30. Such a relay module 200 has a simple structure, is easy to obtain, and has low cost.

[0081] In one embodiment, such as Figure 5 As shown, the data transmission device 10 also includes a terminal receiving module 300, which is disposed on the CT device 20 and connected between the relay module 200 and the terminal 30.

[0082] The terminal receiving module 300 and the relay module 200 are connected via optical signals. The terminal receiving module 300 and the terminal 30 can be connected via wired or wireless connection. Figure 5 The connection between the relay module 200 and the terminal receiving module 300 is the trajectory of the optical signal between the relay module 200 and the terminal receiving module 300.

[0083] The relay module 200 is used to convert and demodulate the first optical signal to obtain the data signal to be transmitted, and then transmits the data signal to be transmitted through a second optical signal; the second optical signal carries the data signal to be transmitted. The terminal receiving module 300 is used to receive the second optical signal, convert and demodulate it, and then transmit the processed signal to the terminal 30.

[0084] After receiving the first optical signal transmitted by the optical signal transmitting module 100, the relay module 200 converts the first optical signal into an analog electrical signal. The first optical signal carries the data signal to be transmitted, and the converted analog electrical signal also carries the data signal to be transmitted. The relay module 200 can obtain the data signal to be transmitted from the analog electrical signal by performing demodulation and decoding processing. Demodulation processing corresponds to modulation processing, and the demodulation method can be any one of amplitude demodulation, frequency demodulation, and phase demodulation. If the optical signal transmitting module 100 modulates the first power signal using amplitude modulation, then the relay module 200 demodulates the analog electrical signal using amplitude demodulation.

[0085] After acquiring the data signal to be transmitted, the relay module 200 transmits the data signal to be transmitted via a second optical signal. In other words, it processes the data signal to be transmitted so that the transmitted second optical signal carries the data signal to be transmitted. For a description of the relay module 200 transmitting the data signal to be transmitted via a second optical signal, please refer to the detailed description in the above embodiment of the optical signal transmitting module 100 transmitting the data signal to be transmitted via a first optical signal; it will not be repeated here.

[0086] The terminal receiving module 300 receives the second optical signal transmitted by the relay module 200, performs photoelectric conversion on the received second optical signal to obtain a converted analog signal, performs analog-to-digital conversion on the converted analog signal, performs demodulation processing, and transmits the processed second signal, i.e., the data signal to be transmitted, to the terminal 30. A description of the conversion and demodulation processing of the received second optical signal by the terminal receiving module 300 can be found in the detailed description of the conversion and demodulation processing of the first optical signal in the above embodiments, and will not be repeated here.

[0087] In this embodiment, the data transmission device 10 further includes a terminal receiving module 300. This terminal receiving module 300 is disposed on the CT device 20 and connected between the relay module 200 and the terminal 30. After the relay module 200 converts and demodulates the received first optical signal to obtain the data signal to be transmitted, it transmits the data signal to be transmitted to the terminal receiving module 300 via a second optical signal. The terminal receiving module 300 converts and demodulates the received second optical signal and then transmits the second signal to the terminal 30. In this way, the relay module 200 and the terminal receiving module 300 transmit the data signal to be transmitted via the second optical signal, which can reduce the bit error rate of the transmitted data signal and increase the signal transmission rate. Furthermore, the transmitted data signal is not subject to electrical interference, which can improve EMC immunity.

[0088] In one embodiment, such as Figure 6 As shown, the relay module 200 includes: a second photoelectric conversion component 220, a second processing component 230, and a second laser 240. The second photoelectric conversion component 220 is connected to the second processing component 230, and the second processing component 230 is connected to the second laser 240. The second photoelectric conversion component 220 is communicatively connected to the second processing component 230, and the second processing component 230 is communicatively connected to the second laser 240.

[0089] The second photoelectric conversion component 220 is used to convert the first optical signal into a first analog signal and transmit the first analog signal to the second processing component 230.

[0090] The second photoelectric conversion component 220 can be a photovoltaic cell array. The second photoelectric conversion component 220 can receive the first optical signal emitted by the optical signal transmitting module 100, convert the first optical signal into a first analog signal, and transmit the first analog signal to the second processing component 230. The light spot of the first optical signal received by the second photoelectric conversion component 220 is shown below. Figure 7 As shown.

[0091] The second processing component 230 is used to perform analog-to-digital conversion and demodulation processing on the first analog signal to obtain the data signal to be transmitted; and to obtain the second voltage signal and perform modulation processing on the data signal to be transmitted and the second voltage signal.

[0092] After receiving the first analog signal, the second processing component 230 converts it into a digital signal. The first optical signal carries the data signal to be transmitted, and the converted digital signal also carries the data signal to be transmitted. After obtaining the digital signal, the second processing component 230 demodulates it to obtain the data signal to be transmitted. The second processing component 230 obtains a second voltage signal, which can be provided by a power supply external to the repeater module 200 or obtained from the first optical signal received by the optical signal transmitting module 100. That is, the first optical signal emitted by the optical signal transmitting module 100 can be used to transmit data signals and also to provide power to the second processing component 230 in the repeater module 200. The second processing component 230 modulates the data signal to be transmitted and the second voltage signal so that the second voltage signal carries the data signal to be transmitted. Specifically, after receiving the data signal to be transmitted, the second processing component 230 performs digital-to-analog conversion, further amplifies it, and then modulates the processed data signal to be transmitted and the second voltage signal. The second processing component 230 may be the same as or different from the first processing component 120; this embodiment does not impose any restrictions on this.

[0093] The second laser 240 is used to emit a second optical signal under the excitation of the modulated second voltage signal. A description of the second laser 240 can be found in the detailed description of the first laser 130 in the above embodiments, and will not be repeated here.

[0094] In this embodiment, the relay module 200 includes a second photoelectric conversion component 220, a second processing component 230, and a second laser 240. The second photoelectric conversion component 220 is connected to the second processing component 230, and the second processing component 230 is connected to the second laser 240. The second photoelectric conversion component 220 converts the received first optical signal into a first analog signal and transmits the first analog signal to the second processing component 230. The second processing component 230 can first perform analog-to-digital conversion and demodulation processing on the first analog signal to obtain the data signal to be transmitted; then, together with the second laser 240, it transmits the data signal to be transmitted through a second optical signal. In this way, the second optical signal carrying the data signal to be transmitted is not subject to electrical interference, which can reduce the bit error rate of transmitting the data signal to be transmitted and improve the efficiency of transmitting the data signal to be transmitted. Furthermore, the relay module 200 provided in this embodiment has a simple structure, is easy to obtain, and has low cost.

[0095] In one embodiment, such as Figure 8As shown, the terminal receiving module 300 includes a third photoelectric conversion component 310 and a third processing component 320, with the third photoelectric conversion component 310 connected to the third processing component 320. The third photoelectric conversion component 310 and the third processing component 320 can be directly connected by wire or wirelessly; this embodiment does not impose any restrictions on this, as long as the functionality can be achieved.

[0096] The third photoelectric conversion component 310 is used to receive the second optical signal, convert the second optical signal into a second analog signal, and transmit the second analog signal to the third processing component 320. The third processing component 320 is used to receive the second analog signal, perform analog-to-digital conversion and demodulation processing on the second analog signal, obtain the data signal to be transmitted, and transmit the data signal to be transmitted to the terminal 30.

[0097] The third photoelectric conversion component 310 may be the same as or different from the first photoelectric conversion component 210, and the third processing component 320 may be the same as or different from the first processing component 120; this embodiment does not impose any restrictions on this. After receiving the second optical signal emitted by the relay module 200, the third photoelectric conversion component 310 performs photoelectric conversion on the second optical signal to obtain a second analog signal, and transmits the second analog signal to the third processing component 320. Upon receiving the second analog signal, the third processing component 320 performs analog-to-digital conversion on the second analog signal to obtain a corresponding digital signal; and demodulates the digital signal to obtain the data signal to be transmitted carried by the digital signal, and transmits the data signal to be transmitted to the terminal 30. For a description of the third processing component 320 receiving the second analog signal, performing analog-to-digital conversion and demodulation processing on the second analog signal to obtain the data signal to be transmitted, please refer to the specific description of the second processing component 230 performing analog-to-digital conversion and demodulation processing on the first analog signal to obtain the data signal to be transmitted in the above embodiment; it will not be repeated here.

[0098] The terminal receiving module 300 provided in this embodiment includes a third photoelectric conversion component 310 and a third processing component 320. The third photoelectric conversion component 310 is connected to the third processing component 320. Such a terminal receiving module 300 has a simple structure, is easy to implement, and has low cost.

[0099] In one embodiment, such as Figure 9 As shown, the terminal 30 includes a control board 31 and a display screen 32. The control board 31 is disposed on the CT equipment 20 and connected to the display screen 32. The control board 31 is also connected to the relay module 200. The control board 31 is used to receive the processed first signal, reconstruct the processed first signal to obtain a medical scan image, and transmit the medical scan image to the display screen 32. The display screen 32 is used to display the medical scan image.

[0100] In the relay module 200, the first photoelectric conversion component 210 converts and demodulates the received first optical signal to obtain the processed first signal, i.e., the data signal to be transmitted. This data signal is then transmitted to the control board 31. The control board 31 can perform image reconstruction on the received data signal to obtain a medical scan image. The display screen 32 directly receives the medical scan image from the control board 31 for visualization and display, for clinical diagnostic use.

[0101] In another embodiment, such as Figure 5 As shown, the control board 31 is connected to the terminal receiving module 300; the control board 31 is used to receive the processed second signal, reconstruct the processed second signal to obtain a medical scan image, and transmit the medical scan image to the display screen 32; the display screen 32 is used to display the medical scan image.

[0102] The third processing component 320 in the terminal receiving module 300 performs analog-to-digital conversion and demodulation processing on the second analog signal to obtain the processed second signal, i.e., the data signal to be transmitted. This data signal is then transmitted to the control board 31. The control board 31 can perform image reconstruction on the received data signal to obtain a medical scan image. The display screen 32 directly receives the medical scan image from the control board 31 for visualization and display, for clinical diagnostic use.

[0103] The above embodiments provide two methods for the terminal 30 to process received signals: one is a method when the terminal 30 is directly connected to the relay module 200, and the other is a method when the terminal 30 is connected to the terminal receiving module 300. Users can choose the method provided in the above embodiments according to their actual applications, thus making the data transmission device more practical.

[0104] In one embodiment, the optical signal transmitting module 100 is used to receive the raw image data detected by the detector of the CT device 20, and to perform serial-to-parallel conversion on the raw image data to obtain the data signal to be transmitted.

[0105] The data received by the optical signal transmitting module 100 from the detector of the CT device 20 is the raw image data. After receiving the raw image data, the optical signal transmitting module 100 performs serial-to-parallel conversion on the raw image data, that is, divides the raw image data into multiple parallel data, i.e., data signals to be transmitted.

[0106] The third processing component 320 receives the second analog signal, performs analog-to-digital conversion and demodulation on the second analog signal, and sends the processed data signal to be transmitted to the control board 31. The control board 31 performs parallel-to-serial conversion on the data signal to be transmitted to obtain the original image data, and reconstructs the original image data to obtain the medical scan image.

[0107] The first optical signal emitted by the optical signal transmitting module 100 carries multiple parallel data signals to be transmitted. Similarly, the second optical signal transmitted via the relay module 200 to the third photoelectric conversion component 310 in the terminal receiving module 300 also carries multiple parallel data signals. Therefore, the control board 31 receives multiple parallel data signals as well. Upon receiving these signals, the control board 31 performs a parallel-to-serial conversion, transforming the multiple parallel data signals into a single serial data signal, thus obtaining the original image data. The control board 31 then performs image reconstruction on the obtained original image data to obtain a medical scan image, which is then transmitted to the display screen 32 for visualization.

[0108] In this embodiment, the data signal to be transmitted by the optical signal transmitting module 100 via the first optical signal is the serial-to-parallel conversion of the original image data detected by the detector of the CT device 20. Correspondingly, before the third processing component 320 in the terminal receiving module 300 transmits the data signal to be transmitted to the terminal 30, it needs to perform a parallel-to-serial conversion on the data signal to be transmitted in order to restore the original image data detected by the detector of the CT device 20 and reconstruct the original image data to obtain a medical scan image. During the transmission process, the original image data is divided into multiple parallel data, and after the transmission is completed, the multiple parallel data are restored to the original image data. This can improve the efficiency and accuracy of transmitting the original image data.

[0109] In an optional embodiment, the oblique view of the CT device is as follows: Figure 10 As shown. A side view of the CT equipment is shown below. Figure 11 As shown, the front view of the CT equipment is as follows: Figure 12 As shown.

[0110] Please see Figure 13 One embodiment of this application provides a CT scanning system, which includes a CT device 20. The CT device 20 in this embodiment is a rotary type. The CT device includes:

[0111] Stator side 21, a fixed frame 210 is provided on stator side 21;

[0112] Rotor side 22, a rotating frame 220 is provided on rotor side 22, a X-ray tube and a detector are provided on rotating frame 220, the X-ray tube and the detector are arranged opposite to each other, rotating frame 220 is rotatably mounted on fixed frame 210, and the X-ray tube and the detector rotate with rotating frame 220;

[0113] The power ring 23 serves as a connection and coupling mechanism for power transmission between the stator side 21 and the rotor side 22.

[0114] The optical signal transmitting module 100 is mounted on the rotating frame 220 and rotates with the rotating frame 220. It is used to receive the data signal to be transmitted detected by the detector and transmit the data signal to be transmitted to the outside of the CT equipment 20 through the first optical signal.

[0115] The description of the X-ray tube and detector can be found in the detailed description of the above embodiments. The detailed description of the optical signal transmitting module 100 can also be found in the detailed description of the above embodiments, and will not be repeated here.

[0116] The power ring 23, also known as a slip ring, may include a first part and a second part. The first part is disposed on the fixed frame 210 and connected to the power supply device in the CT equipment 20; the second part is disposed on the rotating frame. The first and second parts of the power ring 23 achieve electrical connection between the stator side 21 and the rotor side 22. The connection coupling mechanism can be contact-type, such as a metal conductor, or non-contact-type, such as electromagnetic coupling.

[0117] In this embodiment, a first optical signal emitted by an optical signal transmitting module 100 mounted on a rotating frame 220 on the rotor side 22 of the CT scanner transmits the data signal detected by the detector. Compared to the precision antennas installed in conventional technologies, the CT scanning system provided in this embodiment does not rely on the annular mechanical structure of the slip ring of the CT scanner for transmitting the data signal. This results in a simpler structure, lower cost, easier installation and maintenance, and higher maintainability, serviceability, and practicality. Furthermore, since the data signal is transmitted via the first optical signal, it is unaffected by electrical interference, improving electromagnetic compatibility immunity and thus enhancing the quality of the image reconstructed by the subsequent terminal using the transmitted data signal.

[0118] Please continue reading Figure 13 In one embodiment, the CT scanning system further includes a relay module 200. The relay module 200 is separately disposed from the CT device 20 and is located on the rotation center axis of the CT device 20. The relay module 200 is used to receive the first optical signal emitted by the optical signal transmitting module, convert the first optical signal, and transmit the processed signal to the terminal 30.

[0119] The description of the relay module 200 can be found in the detailed description of the above embodiments, and will not be repeated here.

[0120] In this embodiment, the point-to-point transmission of optical signals between the optical signal transmitting module 100 and the relay module 200 can reduce the bit error rate of the transmitted data signal and improve the signal transmission rate.

[0121] The CT scanning system may also include a terminal receiving module 300 mounted on the fixed gantry 210. For a description of the optical signal transmitting module 100, relay module 200, and terminal receiving module 300 included in the CT scanning system, please refer to the specific description of the data transmission device 10 in the above embodiments.

[0122] 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.

[0123] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. 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 protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A data transmission device, characterized in that, The data transmission device, used in CT equipment, includes: An optical signal transmitting module, disposed in the CT device, is used to receive the data signal to be transmitted detected by the detector of the CT device, and to transmit the data signal to be transmitted through a first optical signal; the first optical signal carries the data signal to be transmitted. The relay module is separately configured from the optical signal transmitting module. It is used to receive the first optical signal, convert the first optical signal, and transmit the processed first signal to the terminal.

2. The data transmission device according to claim 1, characterized in that, The optical signal transmitting module includes a power supply component, a first processing component, and a first laser. The power supply component is connected to the first processing component and the first laser, and the first processing component is connected to the first laser. The power supply component is used to provide a first voltage signal to the first processing component; The first processing component is configured to receive the data signal to be transmitted and to modulate the data signal to be transmitted and the first voltage signal. The first laser is used to emit the first optical signal under the excitation of a modulated first voltage signal.

3. The data transmission device according to claim 1, characterized in that, The relay module includes: The first photoelectric conversion component is communicatively connected to the terminal and is used to receive the first optical signal, convert and demodulate the first optical signal, and transmit the processed first signal to the terminal.

4. The data transmission device according to claim 1, characterized in that, The data transmission device further includes: a terminal receiving module, which is disposed in the CT device and connected between the relay module and the terminal; The relay module is used to convert and demodulate the first optical signal to obtain the data signal to be transmitted, and to transmit the data signal to be transmitted through a second optical signal; the second optical signal carries the data signal to be transmitted. The terminal receiving module is used to receive the second optical signal, convert and demodulate the second optical signal, and transmit the processed second signal to the terminal.

5. The data transmission device according to claim 4, characterized in that, The relay module includes: a second photoelectric conversion component, a second processing component, and a second laser, wherein the second photoelectric conversion component is connected to the second processing component, and the second processing component is connected to the second laser; The second photoelectric conversion component is used to convert the first optical signal into a first analog signal and transmit the first analog signal to the second processing component; The second processing component is used to perform analog-to-digital conversion and demodulation processing on the first analog signal to obtain the data signal to be transmitted; and to obtain a second voltage signal, and to perform modulation processing on the data signal to be transmitted and the second voltage signal; The second laser is used to emit the second optical signal under the excitation of the modulated second voltage signal.

6. The data transmission device according to claim 4, characterized in that, The terminal receiving module includes: a third photoelectric conversion component and a third processing component, wherein the third photoelectric conversion component is connected to the third processing component; The third photoelectric conversion component is used to receive the second optical signal, convert the second optical signal into a second analog signal, and transmit the second analog signal to the third processing component; The third processing component is used to receive the second analog signal, perform analog-to-digital conversion and demodulation processing on the second analog signal, and transmit the processed second signal to the terminal.

7. The data transmission device according to claim 6, characterized in that, The terminal includes a control board and a display screen. The control board is disposed on the CT device and connected to the display screen. The control board is also connected to the relay module or the terminal receiving module. The control board is used to receive the processed first signal or the processed second signal, reconstruct the processed first signal or the processed second signal to obtain a medical scan image, and transmit the medical scan image to the display screen. The display screen is used to display the medical scan image.

8. The data transmission device according to claim 7, characterized in that, The optical signal transmitting module is used to receive the raw image data detected by the detector of the CT device, and to perform serial-to-parallel conversion on the raw image data to obtain the data signal to be transmitted. The third processing component is used to receive the second analog signal, perform analog-to-digital conversion and demodulation processing on the second analog signal, obtain the data signal to be transmitted, and send the data signal to be transmitted to the control board. The control board is used to perform parallel-to-serial conversion on the data signal to be transmitted to obtain the original image data, and to reconstruct the original image data to obtain the medical scan image.

9. A CT scanning system, characterized in that, The CT scanning system includes a CT device, which includes: On the stator side, a fixed frame is provided; On the rotor side, a rotating frame is provided, on which a ball tube and a detector are provided. The ball tube and the detector are arranged opposite to each other. The rotating frame is rotatably mounted on the fixed frame, and the ball tube and the detector rotate with the rotating frame. A power ring serves as a connection and coupling mechanism for power transmission between the stator side and the rotor side. An optical signal transmitting module is disposed on the rotating frame and rotates with the rotating frame. It is used to receive the data signal to be transmitted detected by the detector and transmit the data signal to be transmitted to the outside of the CT equipment through a first optical signal.

10. The CT scanning system according to claim 9, characterized in that, The CT scanning system also includes: The relay module is separately configured from the CT device and located on the rotation center axis of the CT device. The relay module is used to receive the first optical signal emitted by the optical signal transmitting module, convert the first optical signal, and transmit the processed signal to the terminal.

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