Non-contact rotating system and rotating CT system

Abstract

The utility model provides a non-contact rotating system and a rotating CT system. The non-contact rotating system comprises a fixed part, a rotating part and a millimeter wave communication assembly. The millimeter wave communication assembly comprises a millimeter wave transmitting module and a plurality of millimeter wave receiving modules; each millimeter wave receiving module comprises a receiving unit and a receiving antenna array connected with the receiving unit; the rotating part is rotationally arranged in the fixed part in a fixed shaft manner, and the outer circumferential surface of the rotating part corresponds to the inner circumferential surface of the fixed part; the millimeter wave transmitting module is arranged on the peripheral surface of the rotating part; the plurality of receiving units are arranged on the fixing piece; and the plurality of receiving antenna arrays are arranged on the inner circumferential surface of the fixed part in a manner of surrounding the rotating part, so that millimeter wave signals emitted by the single millimeter wave transmitting module when the single millimeter wave transmitting module synchronously rotates along with the rotating part can be simultaneously received by at least two adjacent receiving antenna arrays. According to the utility model, high-speed, high-stability and low-cost data transmission between the rotating member and the fixed member can be realized.

Description

Technical Field

[0001] This utility model relates to the field of data transmission technology, specifically to a non-contact rotating system and a rotating CT system. Background Technology

[0002] Most existing rotating systems use slip ring or optical module solutions for data transmission. Let's take the most common large-scale rotating system, the "medical rotating CT system," as an example: Figure 1 The rotating CT system shown uses a slip ring structure. The four wires on the left side are connected to four metal rings on the flange and rotate together with the flange. The four wires on the right side are connected to the four red brushes shown in the diagram and remain stationary along with the brushes. The four wires on the flange establish corresponding connections with the four signal lines on the brushes. The rotating components in the medical rotating CT system transmit the acquired CT imaging data through... Figure 1 The slip ring structure transmits data from four wires on the flange to four signal lines on the brush, thus enabling data transmission.

[0003] Rotating CT systems, such as medical rotating CT systems, typically generate hundreds of gigabytes of data per CT scan. Therefore, rotating systems often have very high requirements for data transmission rates. However, slip ring solutions can only support data transmission rates below 1 Gbps; higher rates suffer from signal quality degradation and severe bit errors due to contact issues with the spring contacts. While optical modules can support higher data transmission rates, their complex optical path design is costly, susceptible to dust contamination, and this technology is monopolized by foreign companies.

[0004] Therefore, it is necessary to provide a data transmission scheme for rotating systems that can meet the requirements of high-speed signal transmission, ensure high stability of signal transmission quality, and also have the advantages of simple structure and low cost. Utility Model Content

[0005] This invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, one objective of this invention is to provide a non-contact rotation system capable of achieving high-speed, high-stability, and low-cost data transmission.

[0006] The second objective of this invention is to propose a rotating CT system in which high-speed, high-stability, and low-cost data transmission can be achieved between the rotating and fixed components.

[0007] To achieve the above objectives, a first aspect of this utility model provides a non-contact rotation system, including a fixing component, a rotating component, and a millimeter-wave communication component; the millimeter-wave communication component includes a millimeter-wave transmitting module and a plurality of millimeter-wave receiving modules; each millimeter-wave receiving module includes a receiving unit and a receiving antenna array connected thereto;

[0008] The rotating component is rotatably disposed within the fixed component, with its outer circumferential surface corresponding to the inner circumferential surface of the fixed component; the millimeter-wave transmitting module is disposed on the outer circumferential surface of the rotating component; a plurality of receiving units are disposed on the fixed component; a plurality of receiving antenna arrays are disposed around the rotating component on the inner circumferential surface of the fixed component, such that the millimeter-wave signal emitted by a single millimeter-wave transmitting module when rotating synchronously with the rotating component can be simultaneously received by at least two adjacent receiving antenna arrays.

[0009] According to an embodiment of this utility model, a non-contact rotation system is based on millimeter-wave wireless communication technology. A millimeter-wave transmitting module is arranged on the outer circumferential surface of the rotating component, and multiple millimeter-wave receiving antenna arrays are arranged around the inner circumferential surface of the corresponding fixed component. This ensures that the millimeter-wave signal emitted by a single millimeter-wave transmitting module when rotating synchronously with the rotating component can be simultaneously received by at least two adjacent receiving antenna arrays. This enables the signal from the rotating component to be transmitted to the fixed component at high speed and stably in a non-contact wireless manner. This not only solves the signal quality problems caused by unstable contact and the lifespan problems caused by contact wear in existing slip ring data communication solutions, but also reduces design and cost compared to existing optical module data communication solutions.

[0010] In addition, the non-contact rotation system proposed in the above embodiments of this utility model may also have the following additional technical features:

[0011] Optionally, multiple millimeter-wave transmitting modules are arranged at intervals around the outer peripheral surface of the rotating component.

[0012] Optionally, multiple millimeter-wave transmitting modules can be arranged at equal intervals.

[0013] Optionally, the overall structure of the receiving antenna array is arc-shaped; there is no gap between two adjacent receiving antenna arrays.

[0014] Optionally, the millimeter-wave transmitting module includes a transmitting unit and a transmitting antenna connected thereto; the radiation direction of the transmitting antenna has a preset angle with the front of the receiving antenna array.

[0015] Optionally, it also includes a radiation emitting unit and a radiation receiving unit; the radiation emitting unit and the radiation receiving unit are fixedly mounted on the rotating component accordingly; the signal output terminal of the radiation receiving unit is connected to the millimeter-wave transmitting module.

[0016] Optionally, it further includes a signal line, a stream signal receiving unit, and a stream signal processing unit; the plurality of receiving units are respectively connected to the stream signal receiving unit through the signal line, and the stream signal receiving unit is also connected to the stream signal processing unit.

[0017] Optionally, the receiving unit includes a low-noise amplifier and an envelope detector; the input of the low-noise amplifier is connected to the receiving antenna array corresponding to the receiving unit, and its output is connected to the envelope detector.

[0018] Optionally, the transmitting unit includes an oscillator, a modulator, and a radio frequency amplifier connected in sequence; the radio frequency amplifier is also connected to a transmitting antenna corresponding to the transmitting unit.

[0019] To achieve the above objectives, a second aspect of this utility model provides a rotating CT system, including the aforementioned non-contact rotating system and a terminal processor; the terminal processor is connected to the signal output terminal of the non-contact rotating system.

[0020] According to an embodiment of the present invention, a rotating CT system enables high-speed, stable transmission of large-capacity data between its rotating and fixed components using millimeter-wave wireless communication technology. This not only solves the signal quality problems caused by unstable contact and the lifespan issues due to contact wear in existing slip ring data communication schemes, but also reduces design and cost compared to existing optical module data communication schemes. Attached Figure Description

[0021] Figure 1 A schematic diagram of the slip ring structure used when employing a slip ring communication scheme in a conventional rotating system;

[0022] Figure 2 A schematic diagram of the structure of the non-contact rotation system provided in this embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the structure of the rotation CT system provided for a specific embodiment of this utility model;

[0024] Figures 4(a)-(d) are schematic diagrams of four optional multi-channel transmission mechanisms provided in another embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of the millimeter-wave communication component in the non-contact rotating system provided in this embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the structure of a rotation CT system provided in an embodiment of this utility model;

[0027] Figure 7 A schematic diagram of the data transmission architecture of the rotating CT system provided in this embodiment of the present invention;

[0028] Figure 8 This is a timing diagram of the data received by each millimeter-wave receiving module during operation of the rotating CT system provided in this embodiment of the present invention.

[0029] Label Explanation:

[0030] 10. Fixing component; 20. Rotating component; 30. Millimeter-wave communication assembly; 40. X-ray emitting unit; 50. X-ray receiving unit; 60. Signal line; 70. Stream signal receiving unit; 80. Stream signal processing unit; 90. Terminal processor;

[0031] 31. Millimeter-wave transmission module;

[0032] 311. Transmitting unit; 312. Transmitting antenna;

[0033] 32. Millimeter-wave receiver module;

[0034] 321. Receiving unit; 322. Receiving antenna array. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] The non-contact rotating system and rotating CT system provided by this utility model enable high-speed, continuous, and stable transmission of large-capacity data between the rotating and fixed components based on millimeter-wave wireless communication technology; it also has the advantages of simple design and low cost.

[0037] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0039] Millimeter-wave communication technology boasts advantages such as high bandwidth, high transmission rate, low latency, strong directionality, miniaturization, and integration. In particular, its millimeter-wave frequency band provides extremely high bandwidth, easily achieving transmission rates exceeding 1Gbps, making it especially suitable for applications requiring high bandwidth transmission, such as those handling large-capacity and high-fidelity data.

[0040] Please see Figure 2 and Figure 3 ,in, Figure 2 This is a schematic diagram of a non-contact rotating system provided in an embodiment of the present invention.

[0041] This utility model embodiment provides a non-contact rotation system, such as Figure 2 As shown, it includes a fixing component 10, a rotating component 20, and a millimeter-wave communication component 30; the signal from the rotating component 20 can be transmitted to the fixing component 10 at high speed and stably through the millimeter-wave communication component 30 in a non-contact wireless communication manner for subsequent processing.

[0042] The millimeter-wave communication component 30 includes at least one millimeter-wave transmitting module 31 and a plurality of millimeter-wave receiving modules 32; wherein each millimeter-wave transmitting module 31 includes a transmitting unit 311 and a transmitting antenna 312 connected thereto; each millimeter-wave receiving module 32 includes a receiving unit 321 and a receiving antenna array 322 connected thereto.

[0043] The fastener 10 can be considered as an outer ring assembly, which is usually connected to the equipment base and kept fixed.

[0044] The rotating component 20 can be regarded as an inner ring assembly, which performs a fixed-axis rotational motion relative to the fixed component;

[0045] The millimeter-wave transmitting module 31, as a wireless radio frequency transmitting component, is used to convert the data collected on the rotating part into millimeter-wave wireless signals and then transmit them to the receiving antenna array on the fixed part.

[0046] The millimeter-wave receiving module 32, as a wireless radio frequency receiving component, has a receiving antenna array 322 for receiving millimeter-wave wireless signals transmitted by the millimeter-wave transmitting module and converting them into corresponding electrical signals; its receiving unit 321 is used to convert the electrical signals returned by the corresponding receiving antenna array into logic signals. The form of the logic signals is not limited and can be single-ended signals or differential signals.

[0047] like Figure 2As shown, in this embodiment, the rotating component 20 is rotatably disposed within the fixed component 10, meaning that the rotating component 20 rotates with its center fixed within the fixed component 10. The rotating component 20 can be an annular or arc-shaped structure; of course, depending on different requirements, the rotating component 20 can also be an irregular shape, such as a triangle or rectangle. When the rotating component 20 rotates, its outer circumferential surface corresponds to the inner circumferential surface of the fixed component, and the two are spaced a certain distance apart. Here, it is preferred that the rotating component 20 is an annular or arc-shaped structure, with its outer circumferential surface being a circular surface; correspondingly, it is preferred that the inner circumferential surface of the fixed component 10 is also a circular surface structure.

[0048] The millimeter-wave transmitting module 31 in the millimeter-wave communication component 30 is fixedly mounted on the outer peripheral surface of the rotating member 20. Multiple receiving units 321 of the millimeter-wave receiving module 32 in the millimeter-wave communication component 30 are fixedly mounted on the fixing member 10, preferably positioned near its inner peripheral surface for better connection with the corresponding receiving antenna array 322. Multiple receiving antenna arrays 322 of the millimeter-wave receiving module 32 are fixedly mounted on the inner peripheral surface of the fixing member 10. Specifically, the multiple receiving antenna arrays 322 are arranged around the rotating member 20 along the radio frequency coverage trajectory of the millimeter-wave transmitting module 31 as it rotates synchronously with the rotating member 20. Specifically, the overall receiving antenna array, composed of multiple receiving antenna arrays 322, has a radio frequency (RF) receiving range that completely covers the RF coverage range of the millimeter-wave transmitting module 31 when it rotates synchronously with the rotating member 20. Furthermore, by adjusting the receiving area of ​​each individual receiving antenna array 322 and / or the number of receiving antenna arrays 322 contained therein, it can be ensured that the millimeter-wave signal emitted by a single millimeter-wave transmitting module 31 when it rotates synchronously with the rotating member 20 can be simultaneously received by at least two adjacent receiving antenna arrays 322. Alternatively, the above effect can be achieved by adjusting the RF coverage range and / or RF transmission angle of the millimeter-wave transmitting module 31, meaning that the RF radiation range of the millimeter-wave transmitting module 31 can cover at least one receiving antenna array area. Preferably, as... Figure 2 The RF signal coverage area of ​​the millimeter-wave transmitting module, indicated by the red line, is 1.5 times the area of ​​a single receiving antenna array (as shown by the green line in the figure).

[0049] It is understood that when the rotating component 20 rotates, the millimeter-wave transmitting module 31 and the millimeter-wave receiving module 32 will undergo relative motion. The moving millimeter-wave transmitting module 31 will continuously sweep across different receiving antenna arrays 322, meaning that the receiving antenna arrays 322 capable of receiving RF signals will constantly change. To ensure the continuity and integrity of signal reception, this embodiment designs the layout of the relative relationship between the millimeter-wave transmitting module 31 and multiple receiving antenna arrays 322 in the millimeter-wave communication component 30. This ensures that the RF coverage area of ​​a single millimeter-wave transmitting module 31 can simultaneously cover (in this invention, coverage refers to complete or partial coverage) at least two adjacent receiving antenna arrays 322 at any given time. This allows the millimeter-wave signal emitted by a single millimeter-wave transmitting module 31 when rotating synchronously with the rotating component 20 to be simultaneously received by at least two adjacent receiving antenna arrays 322, ensuring a certain overlap area during the switching of RF signals between adjacent receiving antenna arrays 322, thus achieving seamless switching of RF signals during rotational motion. Therefore, this embodiment ensures the continuity of signal transmission by achieving signal overlap.

[0050] Based on the above-mentioned millimeter-wave communication component setup, the non-contact rotation system provided in this embodiment can ensure that the signal on the rotating component 20 is transmitted completely and reliably to the fixed component 10 during rotation, thus guaranteeing the continuity of signal transmission during rotation.

[0051] The working principle of the non-contact rotation system in this embodiment is as follows:

[0052] During the rotation of the rotating component, the data collected by the rotating component will be transmitted in the form of millimeter-wave wireless signals through a millimeter-wave transmitting module that rotates synchronously with the rotating component. Multiple receiving antenna arrays located on the inner circumference of the fixed component and arranged around the millimeter-wave transmitting module will ensure that at least two adjacent receiving antenna arrays can simultaneously receive the millimeter-wave signals emitted by the millimeter-wave transmitting module during the rotation of the millimeter-wave transmitting module, so as to ensure that the signals emitted by the millimeter-wave transmitting module can be continuously and completely received by the millimeter-wave receiving module. Then, the millimeter-wave receiving module converts the received millimeter-wave signals into corresponding logic signals and transmits them to the fixed component for further processing.

[0053] In this embodiment, the single-channel transmission rate based on millimeter-wave wireless communication technology can reach up to 10Gbps, easily meeting the requirements for high-speed signal transmission between the rotating and fixed components. The specific layout design of the millimeter-wave transmitting module and multiple receiving antenna arrays ensures that the millimeter-wave signal emitted by a single transmitting module while rotating synchronously with the rotating component can be simultaneously received by at least two adjacent receiving antenna arrays, thus guaranteeing continuous signal transmission. Therefore, the non-contact rotation system provided in this embodiment can achieve high-capacity, high-speed, continuous, and stable non-contact signal transmission between the rotating and fixed components. It solves the signal quality problems caused by unstable contact and the lifespan problems caused by contact wear in sliding contact transmission schemes. Compared to optical module transmission schemes, it reduces cost and design complexity.

[0054] In some specific implementations of this embodiment, such as Figure 2 As shown, the overall structure of a single receiving antenna array 322 is arc-shaped. This structural design is more conducive to multiple receiving antenna arrays 322 being arranged in a surrounding layout on the inner circumference of the fixing member 10. Based on the radio frequency radiation range that the millimeter-wave transmitting module 31 can scan when rotating synchronously with the rotating member 20, multiple receiving antenna arrays 322 will be spliced ​​together to cover the corresponding area, ensuring comprehensive reception coverage of the radio frequency radiation range of the millimeter-wave transmitting module 31. As some preferred examples, the overall receiving antenna structure constructed from multiple arc-shaped receiving antenna arrays 322 may be a closed ring structure, or a ring structure with cutouts (i.e., an arc-shaped structure), or a spherical structure that completely covers the inner circumference of the fixing member 10, depending on the radio frequency radiation range that the millimeter-wave transmitting module 31 can scan when rotating synchronously with the rotating member 20, as well as cost considerations.

[0055] In some specific embodiments of this example, there is no gap between two adjacent receiving antenna arrays 322. It is understood that, in order to ensure that at least two adjacent receiving antenna arrays 322 can simultaneously receive the millimeter-wave signal emitted by the rotating millimeter-wave transmitting module 313, the multiple rows of receiving antenna arrays 22 are preferably seamlessly connected. Of course, based on the differences in the RF coverage range and transmission angle of a single millimeter-wave transmitting module 31, and the differences in the RF receiving area (i.e., the area of ​​the receiving antenna array) of a single receiving antenna array 322, a certain gap may also be left between two adjacent receiving antenna arrays 322, as long as it can ultimately ensure that at least two adjacent receiving antenna arrays 322 can simultaneously receive the millimeter-wave signal emitted by the rotating millimeter-wave transmitting module 31.

[0056] In some specific embodiments of this example, a single millimeter-wave transmitting module 31 includes a transmitting unit 311 and a transmitting antenna 312 connected thereto. Here, the transmitting unit 311 and the corresponding transmitting antenna 312 can be an integrated structure, meaning they are designed together, and the single millimeter-wave transmitting module is considered a single integrated structure. Alternatively, the transmitting unit 311 and the corresponding transmitting antenna 312 can be separate structures, meaning they are independently designed as two functional components, and the single millimeter-wave transmitting module 31 consists of an independent transmitting unit 311 and an independent transmitting antenna 312. The specific configuration can be flexibly tailored to different application scenarios. As some preferred examples, the millimeter-wave transmitting module is an integrated structure, integrally disposed on the outer circumferential surface of the rotating component; if the millimeter-wave transmitting module is a separate structure, the transmitting antenna is independently disposed on the outer circumferential surface of the rotating component, and the corresponding transmitting unit can be disposed within the rotating component.

[0057] In some other specific embodiments of this example, such as Figure 2 As shown, the RF radiation direction of the transmitting antenna 311 in the millimeter-wave transmitting module 31 is at a certain angle to the RF receiving surface (i.e., the front) of the receiving antenna array 322. This angle can be achieved by adjusting the installation angle of the transmitting antenna in the millimeter-wave transmitting module. This design can increase the RF signal radiation range of the transmitting antenna, contributing to the continuity of data transmission. Of course, when the RF receiving area of ​​a single receiving antenna array is small and multiple receiving antenna arrays are closely arranged, the RF radiation direction of the transmitting antenna of the millimeter-wave transmitting module can also be set directly towards the RF receiving surface of the receiving antenna array. Specifically, this can be flexibly configured according to different application scenarios, provided that at least two adjacent receiving antenna arrays can simultaneously receive the millimeter-wave signal emitted by the rotating millimeter-wave transmitting module.

[0058] In some specific embodiments of this example, the rotating component in the non-contact rotating system specifically acquires radiation data, such as X-ray data. Correspondingly, as... Figure 3 As shown, the non-contact rotation system also includes a radiation emitting unit 40 and a radiation receiving unit 50; the radiation emitting unit 40 and the radiation receiving unit 50 are fixedly disposed at both ends of the inner circumferential surface of the rotating component 20; the signal output terminal of the radiation receiving unit 40 is connected to the millimeter wave emitting module 31.

[0059] Here, the ray emitting unit 40 is used to emit specific electromagnetic waves, such as X-rays. These specific electromagnetic waves can be attenuated to varying degrees after passing through biological organisms, such as the human body.

[0060] The radiation receiving unit 50 receives radiation emitted by the radiation emitting unit after it has passed through the biological organism, attenuating to form corresponding image data of the organism's internal structure. A millimeter-wave transmitting module connected to the signal output of the radiation receiving unit converts the image data transmitted from the radiation receiving unit into a corresponding millimeter-wave wireless signal before transmitting it; the millimeter-wave receiving module of the fixed component converts the received millimeter-wave wireless signal back into the image data. Thus, the non-contact rotation system enables the high-speed and stable transmission of biological internal structure image data acquired by the rotating component to the fixed component.

[0061] In some other specific embodiments of this example, such as Figure 3 As shown, the non-contact rotation system further includes a signal line 60, a stream signal receiving unit 70, and a stream signal processing unit 80; multiple receiving units 321 in the multiple millimeter wave receiving modules 32 are respectively connected to the stream signal receiving unit 70 through the signal line 60, and the stream signal receiving unit 70 is also connected to the stream signal processing unit 80.

[0062] Here, the signal line 60, also known as a signal transmission cable, is used to establish a signal communication connection between the receiving unit and the signal receiving unit of the millimeter-wave receiving module, so as to transmit the high-speed logic signal output by the millimeter-wave receiving module to the signal receiving unit for processing; the signal line can transmit any signal form, which can be a single-ended signal or a differential signal.

[0063] The streaming signal receiving unit 70 is used to collect high-speed serial logic signals sent from the receiving units of each millimeter-wave receiving module.

[0064] The streaming signal processing unit 80 is used to combine the high-speed serial logic signals of each channel into a complete signal.

[0065] As can be seen, the non-contact rotation system of this embodiment can transmit and merge the high-speed serial logic signals acquired by multiple millimeter-wave receiving modules into a single processing unit to obtain a complete data signal, which facilitates subsequent processing.

[0066] In some other specific embodiments of this example, such as Figure 3 As shown, the output of the non-contact rotation system is connected to the terminal processor 90. Corresponding to the previous specific embodiment, the output of the stream signal processing unit 80 is connected to the terminal processor 90. The terminal processor 90 is used to process the stream signal output by the non-contact rotation system, generate the final result, and display it on the terminal. For example, if the stream signal output by the non-contact rotation system is a biological internal structure image data stream signal, then the terminal processor will generate a biological internal structure image and display it on the terminal.

[0067] Please refer to Figures 4(a)-(d), which are schematic diagrams of the structure of four optional multi-channel transmission mechanisms provided in another embodiment of this utility model.

[0068] As shown in Figures 4(a)-(d), this embodiment is in Figure 2 Based on the single-channel transmission mechanism provided in the embodiment, a non-contact rotation system with a multi-channel transmission mechanism is further extended to achieve higher-speed and more reliable signal transmission between the rotating component and the fixed component.

[0069] The non-contact rotation system provided in this embodiment has multiple millimeter-wave transmitting modules 31; the multiple millimeter-wave transmitting modules 31 are arranged around the outer peripheral surface of the rotating component 20 at a certain distance from each other. Optionally, the multiple millimeter-wave transmitting modules 31 can be arranged at equal distances or at unequal distances.

[0070] Specifically, the radio frequency coverage areas of the multiple millimeter-wave transmitting modules 31 do not overlap, and are all located within the radio frequency receiving range of the entire receiving antenna array composed of multiple receiving antenna arrays 322. This ensures that the millimeter-wave signals emitted by each millimeter-wave transmitting module 31 can be accurately and completely received by the millimeter-wave receiving module 32, thereby realizing multi-channel signal transmission.

[0071] In some specific embodiments of this example, as shown in FIG4(a), the number of millimeter-wave transmitting modules 31 is two. Optionally, the two millimeter-wave transmitting modules 31 are respectively disposed at corresponding ends on the outer peripheral surface of the rotating member 20. This layout design has both aesthetic symmetry and effectively avoids overlap of the radio frequency coverage areas of the two millimeter-wave transmitting modules 31. Of course, depending on different requirements, the two millimeter-wave transmitting modules 31 can also be disposed in a non-corresponding manner, provided that their radio frequency coverage areas do not overlap. Here, the two millimeter-wave transmitting modules will construct two data transmission channels on the rotating member. Optionally, the two data transmission channels constructed by the two millimeter-wave transmitting modules 31 can simultaneously transmit different data based on data packet splitting technology, increasing data bandwidth and doubling the data transmission rate between the rotating member 20 and the fixed member 10; alternatively, the same data can be transmitted simultaneously, and the presence of bit errors can be confirmed by comparing multiple data streams to achieve data calibration and improve the reliability of data transmission.

[0072] In some specific embodiments of this example, as shown in FIG4(b), the number of millimeter-wave transmitting modules 31 is three. Optionally, the three millimeter-wave transmitting modules 31 are arranged at equal intervals on the outer peripheral surface of the rotating component 20. This layout design has both aesthetic symmetry and minimizes the overlap of the radio frequency coverage areas of the three millimeter-wave transmitting modules 31. Of course, depending on different requirements, the three millimeter-wave transmitting modules 31 can also be arranged at unequal intervals, provided that the radio frequency coverage areas of adjacent two millimeter-wave transmitting modules do not overlap. Here, the three millimeter-wave transmitting modules 31 will form three data transmission channels on the rotating component 20. Optionally, the three data transmission channels formed by the three millimeter-wave transmitting modules can simultaneously transmit different data based on data packet splitting technology, further increasing the data bandwidth and tripling the data transmission rate between the rotating component and the fixed component; alternatively, the same data can be transmitted simultaneously to achieve more accurate data calibration and further improve the reliability of data transmission.

[0073] The data packet splitting technology refers to the rotating component splitting the acquired data to be transmitted into different data packets according to the number of data transmission channels, and then configuring them to be transmitted to each data transmission channel, i.e., each millimeter-wave transmission module, to improve data transmission efficiency. For example, if the rotating component acquires 1024 bits of data, it can be split into four groups of data packets, each consisting of 256 bits. To confirm whether the data transmission is error-free, a check bit can be added to each group of data packets. When the millimeter-wave receiving module receives the complete data, it will confirm the accuracy of the data transmission based on the check bit, and then the signal receiving unit will summarize the data packets from each channel. Finally, the signal processing unit will assemble the data packets to obtain the 1024 bits of data.

[0074] As described above, the non-contact rotation system provided in this embodiment can be equipped with multiple millimeter-wave transmitting modules to construct multiple data transmission channels, and different transmission mechanisms can be selected according to different needs: if higher data bandwidth is required, multiple channels can transmit different data simultaneously; if more reliable data transmission is required, multiple channels can transmit the same data simultaneously. This improves both the data transmission rate and the reliability of data transmission between the rotating and fixed components.

[0075] In addition, the number of millimeter-wave receiving modules in the millimeter-wave communication component of the non-contact rotation system provided in this embodiment can be flexibly adjusted according to different needs.

[0076] It is understandable that, assuming the perimeter (or area) of the inner circumference of the fixed component is fixed, if the number of millimeter-wave receiving modules increases, the number of their receiving antenna arrays will also increase accordingly. The receiving area of ​​a single receiving antenna array will decrease, and thus the number of receiving antenna arrays that the RF radiation range of a single millimeter-wave transmitting module can reach (assuming it remains unchanged) will increase accordingly. This means that more millimeter-wave receiving modules can simultaneously receive the signals emitted by the millimeter-wave transmitting modules. This implies that the overlap and redundancy of the data received by the millimeter-wave receiving modules will increase, thereby reducing the error rate of subsequent data splicing and reconstruction. Based on this, the continuity of data transmission between the rotating and fixed components will be better guaranteed, and the stability of data transmission will be improved. In other words, multiple millimeter-wave receiving modules can ensure the continuity of data transmission.

[0077] In some specific embodiments, the millimeter-wave communication module of the non-contact rotation system can be as follows: Figure 2 The configuration shown in Figure 4(a) can be one millimeter-wave transmitting module + eight millimeter-wave receiving modules; it can also be two millimeter-wave transmitting modules + eight millimeter-wave receiving modules as shown in Figure 4(b); it can also be three millimeter-wave transmitting modules + eight millimeter-wave receiving modules as shown in Figure 4(c); it can also be four millimeter-wave transmitting modules + eight millimeter-wave receiving modules as shown in Figure 4(d); and it can also be three millimeter-wave transmitting modules + sixteen millimeter-wave receiving modules as shown in Figure 4(d). These various configurations can be flexibly selected based on different needs (higher data bandwidth, more stable transmission, cost, installation space, power consumption, etc.) and different component parameters (RF radiation range of the transmitting antenna of the millimeter-wave transmitting module, receiving area of ​​the receiving antenna array of the millimeter-wave receiving module, perimeter of the outer circumference of the rotating component / inner circumference of the fixed component, etc.), provided that the millimeter-wave signal emitted by a single millimeter-wave transmitting module rotating synchronously with the rotating component can be simultaneously received by at least two adjacent receiving antenna arrays.

[0078] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of a millimeter-wave communication component in a non-contact rotating system provided in an embodiment of the present invention. This embodiment is a further extension of any of the above embodiments, and the millimeter-wave communication component therein is described in detail.

[0079] The non-contact rotation system of this embodiment includes a millimeter-wave communication component 30 comprising a millimeter-wave transmitting module 31 and a plurality of millimeter-wave receiving modules 32.

[0080] like Figure 5As shown, each millimeter-wave transmitting module 31 includes a transmitting unit 311 and a transmitting antenna 312 connected thereto; specifically, the transmitting unit 31 includes an oscillator, a modulator, and a radio frequency amplifier; the output terminal of the oscillator is connected to the first input terminal of the modulator; the second input terminal of the modulator serves as the input terminal of the transmitting unit and can be connected to the signal output terminal of the X-ray receiving unit, and its output terminal is connected to the input terminal of the radio frequency amplifier; the output terminal of the radio frequency amplifier serves as the output terminal of the transmitting unit and can be connected to the transmitting antenna 312.

[0081] like Figure 5 As shown, each millimeter-wave receiving module 32 includes a receiving unit 321 and a receiving antenna array 322 connected thereto. Specifically, the receiving unit 321 includes a low-noise amplifier and an envelope detector; the input terminal of the low-noise amplifier is connected to the receiving antenna array, and its output terminal is connected to the input terminal of the envelope detector; the output terminal of the envelope detector serves as the output terminal of the receiving unit and can be connected to the signal line.

[0082] The working principle of the millimeter-wave communication component described in this embodiment is as follows:

[0083] The X-ray receiving unit on the rotating component transmits the collected data signal to the transmitting unit of the millimeter-wave transmitting module in the millimeter-wave communication component. The modulator in the transmitting unit modulates the signal according to the modulation signal generated by the oscillator and converts it into a wireless signal. After being amplified by the transmitting RF amplifier, it is transmitted through the transmitting antenna. As the rotating component rotates, the receiving antenna array covered by the RF coverage area of ​​the transmitting antenna will also change continuously. The receiving antenna array that receives the wireless signal will convert the received wireless signal into a corresponding electrical signal. After being amplified by the receiving RF amplifier in the receiving unit, it is demodulated by the envelope detector to restore the data signal collected by the X-ray receiving unit. Finally, it is transmitted to the signal receiving unit through the signal line.

[0084] In some specific embodiments, the millimeter-wave transmitting module is a millimeter-wave transmitting chip; the receiving unit in the millimeter-wave receiving module is a millimeter-wave receiving chip. By embedding the transmitting antenna and the transmitting unit within the chip, chip-level packaging is achieved, which is not only safer and more reliable but also lower in cost and allows for miniaturization. Similarly, the receiving unit in the millimeter-wave receiving module, using a separate chip-level packaging structure, also offers the advantages of safety, reliability, low cost, and reduced size.

[0085] The non-contact rotation system of this embodiment is based on millimeter-wave wireless communication technology. It utilizes millimeter-wave communication components to achieve high-capacity, continuous, and stable non-contact data transmission between rotating and fixed components. Millimeter-wave communication technology offers advantages such as high bandwidth, high transmission rate, low latency, strong directionality, miniaturization, and integration. In particular, its millimeter-wave frequency band provides extremely high bandwidth, easily achieving transmission rates exceeding Gbps. Therefore, the millimeter-wave communication component of this embodiment can achieve a maximum single-channel rate of 10Gbps, and a multi-channel design can achieve even higher transmission rates, making it particularly suitable for X-ray data transmission requirements with high capacity and high fidelity. Furthermore, the millimeter-wave communication component also features safety, reliability, simple structure, and low cost.

[0086] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a rotating CT system provided in an embodiment of the present invention.

[0087] This embodiment further extends any of the above embodiments to provide a rotating CT system, namely a spiral CT system. The rotating CT system provided in this embodiment includes the non-contact rotating system provided in any of the above embodiments, and a terminal processor; the terminal processor is connected to the signal output terminal of the non-contact rotating system.

[0088] like Figure 6 As shown, the non-contact rotation system of this embodiment includes a fixing component 10, a rotating component 20, a millimeter-wave communication component 30, a radiation emitting unit 40, a radiation receiving unit 50, a signal line 60, a stream signal receiving unit 70, and a stream signal processing unit 80. The output terminal of the stream signal processing unit 80 is connected to a terminal processor 90. Specifically, the radiation emitting unit is an X-ray emitting unit, and the radiation receiving unit is an X-ray receiving unit. The structure, function, and connection relationships of each component will not be described in detail here; please refer to the description in the above embodiment for further details.

[0089] The following section provides a detailed description of the data transmission architecture for a rotating CT system, using a millimeter-wave communication component designed as a multi-channel example:

[0090] In a rotating CT system, X-rays emitted by the X-ray emitting unit on the rotating component are received by the X-ray receiving unit at the other end of the rotating component after penetrating an object or human body; for example... Figure 7As shown, the X-ray receiving unit includes a data acquisition component (i.e., the data acquisition in the figure) and a data processing component (i.e., the data processing in the figure). The data acquisition component is used to convert the acquired analog X-ray signals into digital biological internal structure image data. The data processing component is used to unpack and package the digital biological internal structure image data according to the number of millimeter-wave transmitting modules, and distribute it to each millimeter-wave transmitting module (i.e., TX1 to TXn modules in the figure). Each millimeter-wave transmitting module converts the received digital signal data packets into millimeter-wave wireless signals and transmits them. As the rotating part rotates, the receiving antenna arrays that can be covered by the TX wireless signals of each millimeter-wave transmitting module will continuously change. The receiving antenna arrays 1 to TXn in the figure are shown below. The receiving antenna array n, upon receiving millimeter-wave wireless signals, converts them into electrical signals and transmits them to the corresponding receiving units. The receiving units RX1 to RXn, upon receiving electrical signals, convert these signals into corresponding digital signal data packets and transmit them via signal lines to the receiving ports connected to them in the signal receiving unit (ports 1 to n in the diagram), and then to the signal processing unit (i.e., the streaming data processing unit in the diagram). The signal processing unit merges and processes the received multiple high-speed serial signals, i.e., multiple digital signal data packets, to recover the original complete biological internal structure image data, which is then transmitted to the terminal processor. The terminal processor analyzes the received complete biological internal structure image data and displays the analysis results on the terminal.

[0091] As the rotation angle changes, the data streams received by each receiving unit RX (RX1 to RXn in the figure) change as follows: Figure 8 As shown, since at least two adjacent receiving antenna arrays can simultaneously receive millimeter-wave signals emitted by the rotating millimeter-wave transmitting module, the data streams received by adjacent receiving units RX overlap to a certain extent. This ensures the continuity of data transmission between the rotating and fixed components. Subsequently, by aligning and trimming the overlapping areas in each data stream through the signal processing unit, and splicing the trimmed data streams, the original complete data stream can be accurately recovered, thereby ensuring the reliability of data transmission.

[0092] The rotating CT system provided in this embodiment, based on millimeter-wave wireless communication technology, can transmit large amounts of data acquired on the rotating component to the fixed component for subsequent processing via single-channel or multi-channel non-contact wireless transmission with high speed, high stability, high reliability, and low cost. This not only solves the signal quality problems caused by unstable contact and the lifespan issues due to contact wear in existing rotating CT systems' slip ring communication schemes, but also reduces design and cost compared to optical module communication schemes.

[0093] Those skilled in the art will understand that embodiments of this invention can be provided as methods, systems, or computer program products. Therefore, this invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0094] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing device, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0095] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0096] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1The steps of the function specified in one or more boxes.

[0097] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0098] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0099] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0100] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0101] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0102] In this utility model, unless otherwise explicitly 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.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0104] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A non-contact rotary system, characterized by, It includes a fixing component, a rotating component, and a millimeter-wave communication component; the millimeter-wave communication component includes a millimeter-wave transmitting module and multiple millimeter-wave receiving modules; each millimeter-wave receiving module includes a receiving unit and a receiving antenna array connected thereto; The rotating component is rotatably disposed within the fixed component, with its outer circumferential surface corresponding to the inner circumferential surface of the fixed component; the millimeter-wave transmitting module is disposed on the outer circumferential surface of the rotating component; a plurality of receiving units are disposed on the fixed component; a plurality of receiving antenna arrays are disposed around the rotating component on the inner circumferential surface of the fixed component, such that the millimeter-wave signal emitted by a single millimeter-wave transmitting module when rotating synchronously with the rotating component can be simultaneously received by at least two adjacent receiving antenna arrays.

2. The non-contact rotary system of claim 1, wherein, The number of millimeter-wave transmitting modules is multiple; the multiple millimeter-wave transmitting modules are arranged around the outer peripheral surface of the rotating component at intervals.

3. The non-contact rotary system of claim 2, wherein, Multiple millimeter-wave transmitting modules are set at equal intervals.

4. The non-contact rotary system of claim 1, wherein, The overall structure of the receiving antenna array is arc-shaped; there is no gap between two adjacent receiving antenna arrays.

5. The non-contact rotary system of claim 1, wherein, The millimeter-wave transmitting module includes a transmitting unit and a transmitting antenna connected thereto; the radiation direction of the transmitting antenna is at a preset angle to the front of the receiving antenna array.

6. The non-contact rotary system of claim 1, wherein, It also includes a radiation emitting unit and a radiation receiving unit; the radiation emitting unit and the radiation receiving unit are fixedly mounted on the rotating component; the signal output terminal of the radiation receiving unit is connected to the millimeter-wave emitting module.

7. The non-contact rotary system of claim 1, wherein, It also includes signal lines, a stream signal receiving unit, and a stream signal processing unit; multiple receiving units are respectively connected to the stream signal receiving unit through the signal lines, and the stream signal receiving unit is also connected to the stream signal processing unit.

8. The non-contact rotary system of claim 1, wherein, The receiving unit includes a low-noise amplifier and an envelope detector; the input of the low-noise amplifier is connected to the receiving antenna array corresponding to the receiving unit, and its output is connected to the envelope detector.

9. The non-contact rotary system of claim 6, wherein, The transmitting unit includes an oscillator, a modulator, and a radio frequency amplifier connected in sequence; the radio frequency amplifier is also connected to the transmitting antenna corresponding to the transmitting unit.

10. A rotary CT system characterized by comprising: The system includes the non-contact rotation system according to any one of claims 1 to 9, and a terminal processor; the terminal processor is connected to the signal output terminal of the non-contact rotation system.

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