A CT data transmission control apparatus and method

Abstract

The application relates to a CT data transmission control device and method, wherein the device comprises a rotor side component and a stator side component; one of the rotor side component or the stator side component comprises a first light source array; the other of the rotor side component or the stator side component comprises a first photoelectric receiver; and the first photoelectric receiver is used for receiving signals emitted by the first light source array. The application realizes data propagation through optical signals, and solves the problem that, in the prior art, when the amount of data to be transmitted is large, the wireless transmission rate and accuracy of CT data transmission in a capacitive coupling mode are limited and affected.

Description

Technical Field

[0001] This application relates to the field of medical image data processing technology, and in particular to a CT data transmission control device and method. Background Technology

[0002] A CT (Computed Tomography) system mainly consists of a rotor-side component (rotating) and a stator-side component (fixed). Image data acquired by the detectors in the rotor-side component needs to be wirelessly transmitted in real time to the relatively moving stator-side component. As the number of detector rows in a CT system increases, scanning speeds rise, and the amount of data acquired per unit time increases, the wireless transmission rate is increasingly becoming a bottleneck for the system.

[0003] Currently, the transmission of image data acquired by the rotor-side components of a CT system to the stator-side components is achieved through wireless capacitive coupling. However, due to the influence of the external electromagnetic environment, the wireless transmission rate and accuracy under capacitive coupling are limited and affected.

[0004] There is currently no effective solution to the problem that the wireless transmission rate and accuracy of CT data transmission are limited and affected by capacitive coupling in related technologies. Summary of the Invention

[0005] This embodiment provides a CT data transmission control device and method to solve the problem that the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected in related technologies.

[0006] In the first aspect, this embodiment provides a CT data transmission control device, the device including a rotor-side component 110 and a stator-side component 120;

[0007] One of the rotor-side component 110 or the stator-side component 120 includes a first light source array 111;

[0008] The rotor-side component 110 or the stator-side component 120 includes a first photodetector 121;

[0009] The first photoelectric receiver 121 is used to receive the signal emitted by the first light source array 111.

[0010] In some of these embodiments, one of the rotor-side component 110 or the stator-side component 120 further includes a first control module 113, and the other of the rotor-side component 110 or the stator-side component 120 further includes a second control module 123.

[0011] The first control module 113 is connected to the first light source array 111, and the second control module 123 is connected to the first photoelectric receiver 121.

[0012] In some of these embodiments, one of the rotor-side component 110 or the stator-side component 120 further includes a first signal modulation drive module 115, and the other of the rotor-side component 110 or the stator-side component 120 further includes a first signal modulation demodulation module 125.

[0013] The first signal modulation driving module 115 is connected to the first light source array 111 and the first control module 113;

[0014] The first signal modulation and demodulation module 125 is connected to the first photoelectric receiver 121 and the second control module 123.

[0015] In some embodiments, the rotor-side component 110 further includes a data acquisition module 116 and a first signal conversion module 114;

[0016] The data acquisition module 116 is connected to the first signal conversion module 114, and the first signal conversion module 114 is also connected to the first signal modulation driving module 115 or the first signal modulation demodulation module 125.

[0017] In some embodiments, the stator-side component 120 further includes an image reconstruction module 126 and a second signal conversion module 124;

[0018] The image reconstruction module 126 is connected to the second signal conversion module 124, and the second signal conversion module 124 is also connected to the first signal modulation driving module 115 or the first signal modulation demodulation module 125.

[0019] In some embodiments, the number of the first photodetectors 121 is determined according to the data transmission rate of the CT data; the length of the first light source array 111 is determined according to the data transmission rate of the CT data.

[0020] In some embodiments, the second control module 123 is used to control the first photodetector 121 to move along the length direction of the first light source array 111.

[0021] In some of these embodiments, at least one of the first photodetectors 121 is able to receive signals emitted by the first light source array 111 when the rotor-side component 110 moves.

[0022] In some embodiments, one of the rotor-side component 110 or the stator-side component 120 further includes a second photodetector 112, and the other of the rotor-side component 110 or the stator-side component 120 further includes a second light source array 122; the second photodetector 112 is used to receive signals emitted by the second light source array 122.

[0023] Secondly, this embodiment provides a CT data transmission control method, which is applied to the CT data transmission control device described in any one of the first aspects, the method comprising:

[0024] The control modulation and demodulation module reads the signal collected by the first photoelectric receiver 121;

[0025] Alternatively, the first signal modulation driving module 115 can be controlled to drive the first light source array 111 to emit light and display the modulated data;

[0026] The first photoelectric receiver 121 is used to receive the signal emitted by the first light source array 111.

[0027] Compared with related technologies, the CT data transmission control device and method provided in this embodiment, by setting up a light source array and a photoelectric receiver, realizes data transmission through optical signals, which solves the problem in the prior art that the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0028] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a CT data transmission control device according to this embodiment;

[0031] Figure 2 This is a schematic diagram of another CT data transmission control device in this embodiment;

[0032] Figure 3 This is a schematic diagram of another CT data transmission control device in this embodiment;

[0033] Figure 4 This is a schematic diagram of another CT data transmission control device in this embodiment;

[0034] Figure 5 This is a schematic diagram of another CT data transmission control device in this embodiment;

[0035] Figure 6 This is a schematic diagram of another CT data transmission control device in this embodiment;

[0036] Figure 7 This is a schematic diagram of a data transmission mode of the CT data transmission control device in this embodiment;

[0037] Figure 8 This is a schematic diagram of another data transmission mode of the CT data transmission control device in this embodiment;

[0038] Figure 9 This is a schematic diagram of another data transmission mode of the CT data transmission control device in this embodiment;

[0039] Figure 10 This is a schematic diagram of another data transmission mode of the CT data transmission control device in this embodiment;

[0040] Figure 11 This is a flowchart of a CT data transmission control method according to this embodiment;

[0041] Figure 12 This is a flowchart of another CT data transmission control method in this embodiment. Detailed Implementation

[0042] To better understand the purpose, technical solution, and advantages of this application, the application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the general meaning as understood by one of ordinary skill in the art to which this application pertains. Words such as “a,” “an,” “an,” “the,” “the,” and “these,” used in this application, do not indicate quantitative limitation and may be singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or modules (units) is not limited to the listed steps or modules (units) but may include steps or modules (units) not listed, or may include other steps or modules (units) inherent to such processes, methods, products, or devices. The terms “connected,” “linked,” and “coupled,” used in this application, are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. The term “multiple” used in this application refers to two or more. The "and / or" operator describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: A alone, A and B simultaneously, and B alone. Typically, the character " / " indicates that the objects before and after it are in an "or" relationship. The terms "first," "second," and "third," etc., used in this application are merely for distinguishing similar objects and do not represent a specific ordering of the objects.

[0044] This embodiment provides a CT data transmission control device. Figure 1 This is a schematic diagram of the structure of a CT data transmission control device according to this embodiment, as shown below. Figure 1 As shown, the device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 includes a first light source array 111, and the stator-side component 120 includes a first photodetector 121. The first photodetector 121 is used to receive signals emitted by the first light source array 111.

[0045] Specifically, the CT data transmission control device includes a rotor-side component 110 and a stator-side component 120, which perform unidirectional data link transmission from the rotor-side component 110 to the stator-side component 120. For example, the rotor-side component 110 transmits first data to the stator-side component 120. This first data can be CT image data acquired by the CT detector of the rotor-side component 110, or rotor-side control data sent by the rotor-side component 110 to the stator-side component 120. The rotor-side component 110 converts the electrical signal of the first data into an optical signal through a first light source array 111 for transmission. The first photodetector 121 of the stator-side component 120 acquires the optical signal emitted by the first light source array 111 and converts the optical signal into an electrical signal, thereby realizing data transmission from the rotor-side component 110 to the stator-side component 120.

[0046] In this embodiment, by setting a first light source array 111 on the rotor-side component 110 and a first photodetector 121 on the stator-side component 120 of the CT device, a unidirectional data link transmission from the rotor-side component 110 to the stator-side component 120 is realized through the propagation of light signals. This solves the problem in the prior art where the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0047] This embodiment provides another CT data transmission control device. Figure 2 This is a schematic diagram of another CT data transmission control device in this embodiment, as shown below. Figure 2 As shown, the device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 includes a second photodetector 112, and the stator-side component 120 includes a second light source array 122. The second photodetector 112 is used to receive signals emitted by the second light source array 122.

[0048] Specifically, the CT data transmission control device includes a rotor-side component 110 and a stator-side component 120, which perform unidirectional data link transmission from the stator-side component 120 to the rotor-side component 110. For example, the stator-side component 120 transmits second data to the rotor-side component 110. This second data can be stator-side control data sent from the stator-side component 120 to the rotor-side component 110, or it can be non-control data sent from the stator-side component 120 to the rotor-side component 110. The stator-side component 120 converts the electrical signal of the second data into an optical signal via a second light source array 122 for transmission. The second photodetector 112 of the rotor-side component 110 collects the optical signal emitted by the second light source array 122 and converts the optical signal back into an electrical signal to realize data transmission from the stator-side component 120 to the rotor-side component 110.

[0049] In this embodiment, by setting a second photoelectric receiver 112 on the rotor-side component 110 and a second light source array 122 on the stator-side component 120 of the CT device, a unidirectional data link transmission from the stator-side component 120 to the rotor-side component 110 is realized through the propagation of light signals. This solves the problem in the prior art where the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0050] This embodiment provides another CT data transmission control device. Figure 3 This is a schematic diagram of another CT data transmission control device in this embodiment, as shown below. Figure 3 As shown, the device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 includes a first light source array 111 and a second photodetector 112, and the stator-side component 120 includes a first photodetector 121 and a second light source array 122. The first photodetector 121 receives signals emitted by the first light source array 111, and the second photodetector 112 receives signals emitted by the second light source array 122.

[0051] Specifically, the CT data transmission control device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 and the stator-side component 120 perform bidirectional data transmission from the rotor-side component 110 to the stator-side component 120 and vice versa. For example, the rotor-side component 110 transmits first data to the stator-side component 120. This first data can be CT image data acquired by the CT detector of the rotor-side component 110, or rotor-side control data sent by the rotor-side component 110 to the stator-side component 120. The rotor-side component 110 converts the electrical signal of the first data into an optical signal through a first light source array 111 for transmission. The first photodetector 121 of the stator-side component 120 acquires the optical signal emitted by the first light source array 111 and converts the optical signal into an electrical signal, thereby realizing data transmission from the rotor-side component 110 to the stator-side component 120. Additionally, exemplarily, the stator-side component 120 transmits second data to the rotor-side component 110. This second data can be stator-side control data sent from the stator-side component 120 to the rotor-side component 110, or it can be non-control data sent from the stator-side component 120 to the rotor-side component 110. The stator-side component 120 converts the electrical signal into an optical signal via the second light source array 122 for transmission. The second photodetector 112 of the rotor-side component 110 collects the optical signal emitted by the second light source array 122 and converts it back into an electrical signal, thereby realizing data transmission between the stator-side component 120 and the rotor-side component 110. This achieves bidirectional data transmission between the rotor-side component 110 and the stator-side component 120, and vice versa.

[0052] In this embodiment, by setting a first light source array 111 and a second photodetector 112 on the rotor-side component 110, and setting a first photodetector 121 and a second light source array 122 on the stator-side component 120, bidirectional data transmission from the rotor-side component 110 to the stator-side component 120 and from the stator-side component 120 to the rotor-side component 110 is realized through the propagation of optical signals. This solves the problem in the prior art where the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0053] This embodiment provides another CT data transmission control device. Figure 4 This is a schematic diagram of another CT data transmission control device in this embodiment, as shown below. Figure 4As shown, the device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 includes a first light source array 111, a first control module 113, a first signal conversion module 114, a first signal modulation drive module 115, a data acquisition module 116, and a CT detector 117. The CT detector 117 is connected to the data acquisition module 116, the data acquisition module 116 is connected to the first signal conversion module 114, the first control module 113 is connected to both the data acquisition module 116 and the first signal conversion module 114, the first signal conversion module 114 is connected to the first signal modulation drive module 115, and the first signal modulation drive module 115 is connected to the first light source array 111. The stator-side component 120 includes a first photodetector 121, a second control module 123, a second signal conversion module 124, a first signal modulation and demodulation module 125, and an image reconstruction module 126. The first photodetector 121 is connected to the first signal modulation and demodulation module 125, the second signal conversion module 124 is connected to the first signal modulation and demodulation module 125, and the first signal modulation and demodulation module 125 is also connected to the image reconstruction module 126. The second control module 123 is connected to both the second signal conversion module 124 and the image reconstruction module 126. The first photodetector 121 is used to receive signals emitted by the first light source array 111.

[0054] Specifically, after acquiring CT image data, the rotor-side component 110 transmits the acquired CT image data to the stator-side component 120 via the first light source array 111. The rotor-side component 110 can also transmit rotor-side control data to the stator-side component 120 via the first light source array 111. The rotor-side component 110 is equipped with a signal transmitting end, which can be the first control module 113, or the CT detector 117 and data acquisition module 116. The stator-side component 120 is equipped with a signal receiving end, which can be the image reconstruction module 126 or the second control module 123.

[0055] For example, when the signal transmitting end of the rotor-side component 110 is the CT detector 117 and the data acquisition module 116, and the signal receiving end of the stator-side component 120 is the image reconstruction module 126, the unidirectional data link transmits CT image data. The transmission path of the CT image data is as follows: the CT detector 117 acquires CT image data, which is data acquired by at least one row of CT detectors according to multiple set energy levels; the first control module 113 controls the data acquisition module 116 to acquire the CT image data acquired by the CT detector 117, and controls the data acquisition module 116 to send the acquired CT image data to the first signal conversion module 114 for data format conversion; the first signal conversion module 114 sends the data after data format conversion to the first signal modulation drive module 115, and the first signal modulation drive module 115 modulates the data converted by the first signal conversion module 114 and drives the first light source array 1 11. The modulated data is displayed by emitting light. The stator-side component 120 is provided with at least one first photodetector 121. The first photodetector 121 receives the visible light signal emitted by the first light source array 111 and converts it into an electrical signal. Here, the signal received by the first photodetector 121 is the CT image data emitted by the first light source array 111. The first signal modulation and demodulation module 125 modulates and demodulates the data received by the first photodetector 121. The modulation and demodulation can be signal processing such as filtering, amplification, or analog-to-digital conversion of the data received by the first photodetector 121. The second signal conversion module 124 converts the data format of the modulated and demodulated data and sends the converted data to the image reconstruction module 126. The second control module 123 controls the image reconstruction module 126 to reconstruct the image based on the received data. The image reconstruction module 126 is used to reconstruct the image acquired by the CT detector 117.

[0056] Additionally, exemplarily, when the signal transmitting end of the rotor-side component 110 is the first control module 113 and the signal receiving end of the stator-side component 120 is the second control module 123, the rotor-side control data transmitted via the unidirectional data link follows this path: the first control module 113 sends the rotor-side control data to the first signal conversion module 114; the first signal conversion module 114 converts the data format of the rotor-side control data and sends the converted data to the first signal modulation drive module 115; the first signal modulation drive module 115 modulates the converted data from the first signal conversion module 114 and drives the first light source array 111 to emit light and display the modulated data; the stator-side component 120 is equipped with at least one first photoelectric sensor. Receiver 121 receives the visible light signal emitted by the first light source array 111 and converts it into an electrical signal. Here, the data received by the first photodetector 121 is the rotor-side control data emitted by the first light source array 111. The first signal modulation and demodulation module 125 modulates and demodulates the data received by the first photodetector 121. The modulation and demodulation can be signal processing such as filtering, amplification, or analog-to-digital conversion of the data received by the first photodetector 121. The second signal conversion module 124 converts the data format of the modulated and demodulated data and sends the converted data to the second control module 123. The second control module 123 controls the stator-side component 120 according to the received rotor-side control data.

[0057] In this embodiment, by setting a first light source array 111 on the rotor-side component 110 and a first photodetector 121 on the stator-side component 120 of the CT device, a unidirectional data link transmission from the rotor-side component 110 to the stator-side component 120 is realized through the propagation of light signals. This solves the problem in the prior art where the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0058] This embodiment provides another CT data transmission control device. Figure 5 This is a schematic diagram of another CT data transmission control device in this embodiment, as shown below. Figure 5As shown, the device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 includes a second photodetector 112, a first control module 113, a first signal conversion module 114, and a second signal modulation / demodulation module 118. The second photodetector 112 is connected to the second signal modulation / demodulation module 118, the second signal modulation / demodulation module 118 is connected to the first signal conversion module 114, and the first signal conversion module 114 is connected to the first control module 113. The stator-side component 120 includes a second light source array 122, a second signal modulation / driving module 128, a second signal conversion module 124, and a second control module 123. The second control module 123 is connected to the second signal conversion module 124, the second signal conversion module 124 is connected to the second signal modulation / driving module 128, and the second signal modulation / driving module 128 is connected to the second light source array 122. The second photodetector 112 is used to receive signals emitted by the second light source array 122.

[0059] Specifically, the stator-side data sent by the second control module 123 of the stator-side component 120 is transmitted to the rotor-side component 110 through the second light source array 122. This stator-side data can be either control data or non-control data. A signal transmitting end is provided in the stator-side component 120, which can be the second control module 123. A signal receiving end is provided in the rotor-side component 110, which can be the first control module 113.

[0060] For example, when the signal transmitting end of the stator-side component 120 is the second control module 123 and the signal receiving end of the rotor-side component 110 is the first control module 113, the unidirectional data link transmits stator-side data. The transmission path of the stator-side data is as follows: the second control module 123 sends the stator-side data to the second signal conversion module 124; the second signal conversion module 124 converts the data format of the stator-side data and sends the converted data to the second signal modulation drive module 128; the second signal modulation drive module 128 modulates the converted data from the second signal conversion module 124 and drives the second light source array 122 to emit light and display the modulated data; the rotor-side component 110 is provided with at least one second photoelectric receiver. The device 112, the second photodetector 112 receives the visible light signal emitted by the second light source array 122 and converts it into an electrical signal. Here, the data received by the second photodetector 112 is the stator-side data emitted by the second light source array 122. The second signal modulation and demodulation module 118 modulates and demodulates the data received by the second photodetector 112. Here, the modulation and demodulation can be signal processing such as filtering, amplification or analog-to-digital conversion of the data received by the second photodetector 112. The first signal conversion module 114 converts the data format of the modulated and demodulated data and sends the converted data to the first control module 113. The first control module 113 controls the rotor-side component 110 according to the received stator-side data.

[0061] In this embodiment, by setting a second photoelectric receiver 112 on the rotor-side component 110 and a second light source array 122 on the stator-side component 120 of the CT device, a unidirectional data link transmission from the stator-side component 120 to the rotor-side component 110 is realized through the propagation of light signals. This solves the problem in the prior art where the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0062] This embodiment provides another CT data transmission control device. Figure 6 This is a schematic diagram of another CT data transmission control device in this embodiment, as shown below. Figure 6As shown, the device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 includes a first light source array 111, a first control module 113, a first signal conversion module 114, a first signal modulation drive module 115, a data acquisition module 116, a CT detector 117, a second photodetector 112, and a second signal modulation and demodulation module 118. The CT detector 117 is connected to the data acquisition module 116, the data acquisition module 116 is connected to the first signal conversion module 114, the first control module 113 is connected to both the data acquisition module 116 and the first signal conversion module 114, the first signal conversion module 114 is connected to the first signal modulation drive module 115, the first signal modulation drive module 115 is connected to the first light source array 111, the second photodetector 112 is connected to the second signal modulation and demodulation module 118, the second signal modulation and demodulation module 118 is connected to the first signal conversion module 114, and the first signal conversion module 114 is connected to the first control module 113. The stator-side component 120 includes a first photodetector 121, a second control module 123, a second signal conversion module 124, a first signal modulation and demodulation module 125, an image reconstruction module 126, a second light source array 122, and a second signal modulation and driving module 128. The first photodetector 121 is connected to the first signal modulation and demodulation module 125, the second signal conversion module 124 is connected to the first signal modulation and demodulation module 125, and the first signal modulation and demodulation module 125 is also connected to the image reconstruction module 126. The second control module 123 is connected to both the second signal conversion module 124 and the image reconstruction module 126. The second control module 123 is also connected to the second signal conversion module 124, the second signal conversion module 124 is connected to the second signal modulation and driving module 128, and the second signal modulation and driving module 128 is connected to the second light source array 122. The first photodetector 121 receives signals emitted by the first light source array 121, and the second photodetector 122 receives signals emitted by the second light source array 122.

[0063] Specifically, the CT data transmission control device includes a rotor-side component 110 and a stator-side component 120. The rotor-side component 110 and the stator-side component 120 perform bidirectional data link transmission from the rotor-side component 110 to the stator-side component 120 and from the stator-side component 120 to the rotor-side component 110. The bidirectional data link transmission between the rotor-side component 110 and the stator-side component 120 includes unidirectional data link transmission from the rotor-side component 110 to the stator-side component 120 and unidirectional data link transmission from the stator-side component 120 to the rotor-side component 110. The unidirectional data link transmission path has been described in the foregoing embodiments and will not be repeated here.

[0064] In this embodiment, by setting a first light source array 111 and a second photodetector 112 on the rotor-side component 110, and setting a first photodetector 121 and a second light source array 122 on the stator-side component 120, bidirectional data transmission from the rotor-side component 110 to the stator-side component 120 and from the stator-side component 120 to the rotor-side component 110 is realized through the propagation of optical signals. This solves the problem in the prior art where the wireless transmission rate and accuracy of CT data transmission under capacitive coupling are limited and affected when the amount of data transmitted is large.

[0065] In some embodiments, the first light source array 111 is deployed on the rotor-side component 110 in such a way that the light signals emitted by the first light source array 111 sequentially pass through the detection area of ​​at least one first photodetector 121 during the relative rotational motion between the rotor-side component 110 and the stator-side component 120. This ensures that the visible light signals emitted by the first light source array 111 can be received by the first photodetector 121.

[0066] In some embodiments, the second light source array 122 is deployed on the rotor-side component 110 in such a way that the light signals emitted by the second light source array 122 sequentially pass through the detection area of ​​at least one second photodetector 112 during the relative rotational motion between the rotor-side component 110 and the stator-side component 120. This ensures that the visible light signals emitted by the second light source array 122 can be received by the second photodetector 112.

[0067] In some embodiments, the first control module 113 controls the second photodetector 112 to move along the length of the second light source array 122, ensuring that the visible light signal emitted by the second light source array 122 can be received by the second photodetector 112.

[0068] In some embodiments, the second control module 123 controls the first photodetector 121 to move along the length of the first light source array 111, ensuring that the visible light signal emitted by the first light source array 111 can be received by the first photodetector 121.

[0069] In some of these embodiments, the light-emitting conductors of the first light source array 111 and the second light source array 122 that emit visible light can be light-emitting diodes.

[0070] In some embodiments, the first light source array 111, the second light source array 122, the first photodetector 121, and the second photodetector can be deployed inside a light shield to avoid interference from other light sources to the transmission system.

[0071] In some embodiments, the number of the first photodetector 121 and the second photodetector 112 is determined according to the data transmission rate of the CT data, and the array length of the first light source array 111 and the second light source array 122 is determined according to the data transmission rate of the CT data.

[0072] Specifically, the first control module 113 and the second control module 123 determine the number of the first photodetector 121 and the second photodetector 112 based on the data transmission rate of the CT data. Further, for unidirectional data transmission from the rotor-side component 110 to the stator-side component 120, the first control module 113 controls the timing of the transmitting signal based on the number of first photodetectors 121, and the first signal modulation drive module 115 controls the timing of the emitted light signal of the first light source array 111 based on the transmitting signal timing control signal issued by the first control module 113. Correspondingly, the second control module 123 controls the timing of the receiving signal based on the number of first photodetectors 121, and the first signal modulation and demodulation module 125 controls the timing of the received light signal of the first photodetector 121 based on the receiving signal timing control signal issued by the second control module 123. By controlling the timing of the emitted and received light signals, multiple data transmission modes for light source emission and reception in the CT data transmission control device are realized. Depending on the number of photodetectors and the length of the light source array, there are several data transmission modes, including single-input single-output (SISO) transmission mode, single-input multiple-output (SIMO) transmission mode, multiple-input single-output (MISO) transmission mode, and multiple-input multiple-output (MIMO) transmission mode.

[0073] The following section introduces various data transmission modes for unidirectional data transmission from rotor-side component 110 to stator-side component 120.

[0074] like Figure 7As shown, the data transmission mode for unidirectional data transmission from rotor-side component 110 to stator-side component 120 is a single-input single-output transmission mode. In this mode, the length L of the first light source array 111 is equal to the rotor circumference C, and the stator-side component 120 includes a first photodetector 121. The first light source array 111 can be a light-emitting strip, arranged around the rotor-side component 110 to form a ring. After the rotor-side component 110 rotates, the first photodetector 121 can receive light signals in real time. In this case, the first signal modulation driving module 115 driving the first light source array 111 outputs a signal from only one port to excite the first light source array 111 to emit visible light, and only one first photodetector 121 receives the visible light signal; therefore, it is called a single-input single-output transmission mode. The first signal modulation driving module 115 can modulate data at a very high frequency and drive the first light source array 111 to realize the on / off state of the light source (on / off represents 1 and 0 bits). The first photoelectric receiver 121 detects and parses the on / off signals of the light source in the first light source array 111, thereby realizing wireless data transmission. Here, the light source modulation is mainly intensity modulation, which can be OOK modulation, PAM modulation, or OFDM modulation.

[0075] like Figure 8 As shown, the data transmission mode for unidirectional data transmission from rotor-side component 110 to stator-side component 120 is a single-input multiple-output (SMILE) transmission mode. Taking SMILE 2-output as an example, the length L of the first light source array 111 is half the circumference C of the rotor. The stator-side component 120 includes two first photodetectors 121. The first light source array 111 can be a light-emitting strip. The first light source array 111 is arranged around the rotor-side component 110 to form a semi-circular ring. After the rotor-side component 110 rotates, the first photodetectors 121 can receive light signals in real time. In this case, the first signal modulation driving module 115 drives the light strip of the first light source array 111 to emit light. The two first photodetectors 121 alternately detect and analyze the on / off signals of the light source of the first light source array 111, thereby realizing wireless data transmission.

[0076] In this mode, the emitting light sources of the first light source array 111 do not fill a full circle. The relationship between the length L of the first light source array 111 and the number N of the first photodetectors 121 is: L = C / N, where C is the rotor circumference. The transmission method of one first light source array 111 corresponding to N first photodetectors 121 is as follows: During the rotation of the rotor-side component 110, the stator-side component 120 obtains the angular position information of the rotor-side component 110 through the angle encoder. The signal conditioning and demodulation module of the stator section reads the data collected by the first photodetectors 121 (corresponding to the first light source array 111) based on the angular position information, so that during one rotation, there is always one first light source array 111 corresponding to one first photodetector 121, and the data collected by the first photodetector 121 can be received by the first signal conditioning and demodulation module 125. The advantage of this mode is that the length of the light source array decreases as the number of receivers increases. At the same time, because the length of the light source array decreases, the modulation speed increases, and the transmission rate increases.

[0077] like Figure 9 As shown, the data transmission mode for unidirectional data transmission from rotor-side component 110 to stator-side component 120 is a multi-input single-output mode. Taking a 2-input single-output mode as an example, the length L of the first light source array 111 is equal to the rotor circumference C, and the stator-side component 120 includes a first photodetector 121. The first light source array 111 can be a light-emitting strip, arranged around the rotor-side component 110 to form a ring. After the rotor-side component 110 rotates, the first photodetector 121 can receive light signals in real time. In this case, the light source array 111 is divided into two segments, such as... Figure 9 In the first light source array 111, the vertical and linear shadow portions are divided into two sections. The first signal modulation driving module 115 modulates each segment of the light source array in a time-division manner. Modulation is applied to that segment of the light source array only when it rotates into the detection area of ​​the first photodetector 121, driving that segment to emit light. In this case, the first signal modulation driving module 115 drives the light source array 111 to emit light in a time-division manner. The first photodetector 121 detects and analyzes the on / off signals of the light source in the first light source array 111, thereby achieving wireless data transmission.

[0078] In the transmission mode where N-segment light source arrays correspond to one photodetector: During rotation, the rotor-side component 110 obtains its angular position information through an angle encoder and identifies the number of the light source array corresponding to the current angle and photodetector. It then controls the first signal modulation drive module 115 to drive the corresponding light source array. In one rotation cycle, the first signal modulation drive module 115 sequentially drives the corresponding light source arrays. The advantages of this mode are: the modulation driver modulates each segment of the light source array in a time-division manner, eliminating the need to increase the number of photodetectors, reducing device heat generation, and simultaneously reducing the length of the light source array, increasing the modulation speed, and improving the transmission rate.

[0079] like Figure 10 As shown, the data transmission mode for unidirectional data transmission from rotor-side component 110 to stator-side component 120 is a multiple-input multiple-output (MIMO) mode. Taking a 2-input, 2-output configuration as an example, the length L of the first light source array 111 is equal to the rotor circumference C. The stator-side component 120 includes two first photodetectors 121. The first light source array 111 can be a light-emitting strip. The first light source array 111 is arranged around the rotor-side component 110, forming a ring. After the rotor-side component 110 rotates, the two first photodetectors 121 can receive light signals in real time. In this case, the light source array 111 is divided into two segments, such as... Figure 10 In the vertical and linear shadow portions of the first light source array 111, the first signal modulation driving module 115 simultaneously modulates the two light source array segments. In this case, the first signal modulation driving module 115 simultaneously drives the two light source array segments of the first light source array 111 to emit light. Two first photoelectric receivers 121 detect and analyze the corresponding on / off signals of the light source array segments of the first light source array 111, thereby achieving wireless data transmission.

[0080] The transmission method of N light source arrays corresponding to N photodetectors: The data acquired by the CT detector is divided into N paths and transmitted to the N light source arrays via the first signal modulation driving module 115. Each light source array simultaneously transmits signals, which are received by the N photodetectors. The N photodetectors transmit the collected signals to the first signal modulation and demodulation module 125, which parses and restores the N data packets to the complete data from the transmitting end according to the relevant protocol. The first signal modulation driving module 115 is connected to N outputs, modulating the N segments of the transmitting light source. At least N photodetectors receive different modulated data at the same time, improving data transmission efficiency by N times compared to the single-input single-output transmission mode.

[0081] This embodiment provides a CT data transmission control method, which is applied to Figure 4 or Figure 6 The CT data transmission control system shown is as follows: Figure 11 This is a flowchart of a CT data transmission control method according to this embodiment, such as... Figure 11 As shown, the process includes the following steps:

[0082] In step S102, the first control module 113 controls the data acquisition module 116 to acquire CT image data acquired by the CT detector 117, and controls the data acquisition module 116 to send the acquired CT image data to the first signal conversion module 114 for data format conversion; or, the first control module 113 sends rotor-side control data to the first signal conversion module 114 for data format conversion.

[0083] In step S104, the first signal conversion module 114 sends the data after data format conversion to the first signal modulation driving module 115. The first signal modulation driving module 115 modulates the data converted by the first signal conversion module 114 and drives the first light source array 111 to emit light and display the modulated data.

[0084] In step S106, the first photodetector 121 receives the visible light signal emitted by the first light source array 111 and converts it into an electrical signal;

[0085] Here, the signal received by the first photoelectric receiver 121 is either CT image data or rotor-side control data emitted by the first light source array 111;

[0086] In step S108, the first signal modulation and demodulation module 125 modulates and demodulates the data received by the first photodetector 121;

[0087] Here, modulation and demodulation can refer to signal processing such as filtering, amplifying, or performing analog-to-digital conversion on the data received by the first photoelectric receiver 121;

[0088] In step S110, the second signal conversion module 124 converts the data format of the demodulated data and sends the converted data to the image reconstruction module 126 or the second control module 123.

[0089] In step S112, the second control module 123 controls the image reconstruction module 126 to perform image reconstruction based on the received data; or, the second control module 123 controls the stator-side component 120 based on the received rotor-side control data.

[0090] The image reconstruction module 126 is used to reconstruct the images acquired by the CT detector 117.

[0091] This embodiment provides another CT data transmission control method, which is applied to Figure 5 or Figure 6The CT data transmission control system shown is as follows: Figure 12 This is a flowchart of another CT data transmission control method in this embodiment, such as... Figure 12 As shown, the process includes the following steps:

[0092] In step S202, the second control module 123 sends the stator-side data to the second signal conversion module 124;

[0093] In step S204, the second signal conversion module 124 converts the data format of the stator side data and sends the converted data to the second signal modulation drive module 128.

[0094] In step S206, the second signal modulation driving module 128 modulates the data converted by the second signal conversion module 124 and drives the second light source array 122 to emit light and display the modulated data;

[0095] In step S208, the second photodetector 112 receives the visible light signal emitted by the second light source array 122 and converts it into an electrical signal;

[0096] Step S210: The second signal modulation and demodulation module 118 modulates and demodulates the data received by the second photoelectric receiver 112;

[0097] Here, modulation and demodulation can refer to signal processing such as filtering, amplification, or analog-to-digital conversion of the data received by the second photoelectric receiver 112;

[0098] In step S212, the first signal conversion module 114 converts the data format of the demodulated data and sends the converted data to the first control module 113.

[0099] In step S214, the first control module 113 controls the rotor-side component 110 based on the received stator-side data.

[0100] It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. All other embodiments derived by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0101] Obviously, the accompanying drawings are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar situations based on these drawings without any creative effort. Furthermore, it is understood that although the work done in this development process may be complex and lengthy, for those skilled in the art, certain design, manufacturing, or production modifications made based on the technical content disclosed in this application are merely conventional technical means and should not be considered as insufficient disclosure of this application.

[0102] The term "embodiment" in this application refers to a specific feature, structure, or characteristic described in connection with an embodiment that may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily imply the same embodiment, nor does it imply that it is mutually exclusive with or independent of other embodiments. It will be clearly or implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0103] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A CT data transmission control device, characterized in that, The device includes a rotor-side component (110) and a stator-side component (120). One of the rotor-side components (110) or the stator-side components (120) includes a first light source array (111). The other of the rotor-side component (110) or the stator-side component (120) includes a first photodetector (121). One of the rotor-side components (110) or the stator-side components (120) further includes a first signal modulation drive module (115); the first signal modulation drive module (115) is connected to the first light source array (111); The first signal modulation driving module (115) is connected to N outputs and modulates the N segments of the first light source array; At least N of the first photodetectors (121) are used to receive signals emitted from N segments of the first light source array, respectively; The number of the first photodetectors (121) is determined according to the data transmission rate of the CT data; the length of the first light source array (111) is determined according to the data transmission rate of the CT data; and various data transmission modes are divided according to the different number of photodetectors and the different length of the light source array.

2. The CT data transmission control device according to claim 1, characterized in that, One of the rotor-side components (110) or the stator-side components (120) further includes a first control module (113), and the other of the rotor-side components (110) or the stator-side components (120) further includes a second control module (123). The first control module (113) is connected to the first light source array (111), and the second control module (123) is connected to the first photodetector (121).

3. The CT data transmission control device according to claim 2, characterized in that, The other of the rotor-side component (110) or the stator-side component (120) further includes a first signal modulation and demodulation module (125). The first signal modulation driving module (115) is connected to the first control module (113); The first signal modulation and demodulation module (125) is connected to the first photoelectric receiver (121) and the second control module (123).

4. The CT data transmission control device according to claim 3, characterized in that, The rotor-side component (110) also includes a data acquisition module (116) and a first signal conversion module (114). The data acquisition module (116) is connected to the first signal conversion module (114), and the first signal conversion module (114) is also connected to the first signal modulation drive module (115) or the first signal modulation demodulation module (125).

5. The CT data transmission control device according to claim 3, characterized in that, The stator-side component (120) also includes an image reconstruction module (126) and a second signal conversion module (124). The image reconstruction module (126) is connected to the second signal conversion module (124), and the second signal conversion module (124) is also connected to the first signal modulation driving module (115) or the first signal modulation demodulation module (125).

6. The CT data transmission control device according to any one of claims 2 to 5, characterized in that, The second control module (123) is used to control the first photodetector (121) to move along the length direction of the first light source array (111).

7. The CT data transmission control device according to any one of claims 1 to 5, characterized in that, At least one of the first photodetectors (121) is able to receive the signal emitted by the first light source array (111) when the rotor-side component (110) moves.

8. The CT data transmission control device according to any one of claims 1 to 5, characterized in that, One of the rotor-side component (110) or the stator-side component (120) further includes a second photodetector (112), and the other of the rotor-side component (110) or the stator-side component (120) further includes a second light source array (122); the second photodetector (112) is used to receive signals emitted by the second light source array (122).

9. A CT data transmission control method, characterized in that, The method is applied to the CT data transmission control device according to any one of claims 1 to 8, and the method includes: The control modulation module reads the signal collected by the first photoelectric receiver (121); Alternatively, the first signal modulation driving module (115) can be connected to N outputs and modulate the N segments of the first light source array to drive the first light source array to emit light and display the modulated data. At least N first photodetectors (121) are used to receive signals emitted by the first light source array respectively; wherein, the number of first photodetectors (121) is determined according to the data transmission rate of CT data; the length of the first light source array (111) is determined according to the data transmission rate of the CT data; and various data transmission modes are divided according to the different number of photodetectors and the different length of the light source array.

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