Non-contact data transmission circuit for CT machine

Abstract

The utility model provides a non-contact data transmission circuit for a CT (Computed Tomography) machine, which comprises an optical signal-to-electric signal circuit, a radio-frequency signal transmitting circuit, a radio-frequency signal receiving circuit and an electric signal-to-optical signal circuit, and the input end of the optical signal-to-electric signal circuit can receive optical signals output by an optical signal output module of the CT machine. The output end of the optical signal-to-electric signal circuit is connected with the input end of the radio frequency signal transmitting circuit, the output end of the radio frequency signal transmitting circuit is in wireless communication connection with the input end of the radio frequency signal receiving circuit, and the output end of the radio frequency signal receiving circuit is connected with the input end of the electric signal-to-optical signal circuit. And the output end of the electric signal-to-optical signal circuit can be connected with the input end of a computer optical signal receiving module. The CT machine has the advantages that high-speed data transmission of the CT machine can be achieved, and optical signals are not prone to external interference.

Description

Technical Field

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

[0002] A CT scanner, or computed tomography (CT) scanner, uses X-rays to perform a tomographic scan of the human body. The analog signals received by the detector are then converted into digital signals. A computer calculates the attenuation coefficient of each pixel and reconstructs the image, displaying the tomographic structure of different parts of the body. It clearly shows the subtle differences in human tissues in the form of tomographic images. To distinguish between different densities, CT uses CT values, ranging from -1000 to +1000, with air at -1000, water at 0, and bone at +1000. CT was invented by Cormack and Hounsfield, for whom they were awarded the 1979 Nobel Prize in Medicine. The advent of CT was a major breakthrough in X-ray diagnostics. After the prototype of the first CT machine was installed in September 1971, the first patient was examined on October 4, 1971. In April 1972, the birth of the EMI scanner was announced at the British Radiographers' Conference.

[0003] Currently, existing CT scanners generally output optical signals directly after scanning, requiring high data transmission rates. Transmitting high-definition image data necessitates a minimum transmission speed of 1.25 Gps per second. Current CT scanner data transmission technologies primarily employ wired and wireless WiFi transmission. Wired transmission currently only reaches a maximum of 10 Gigabit bandwidth, or a maximum transmission speed of 1 Gps per second. While wireless WiFi transmission can achieve a minimum speed of 1.25 Gps per second, it only operates on 2.4 GHz and 5 GHz frequencies, making it highly susceptible to interference from other WiFi signals and the electromagnetic radiation from the CT scanner itself, resulting in unstable transmission speeds. Therefore, both wired and wireless WiFi transmissions struggle to meet the data transmission needs of CT scanner users. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a non-contact data transmission circuit for CT scanners. By setting up a mutually cooperating optical signal to electrical signal circuit, radio frequency signal transmitting circuit, radio frequency signal receiving circuit, and electrical signal to optical signal circuit in the non-contact data transmission circuit for CT scanners, high-speed data transmission of CT scanners can be achieved. Moreover, the optical signal is not easily affected by other external interferences, solving the problem that the existing data transmission technology of CT scanners, which mainly uses wired transmission and wireless WiFi transmission, cannot meet people's needs.

[0005] This utility model provides a non-contact data transmission circuit for a CT scanner, comprising an optical signal to electrical signal conversion circuit, a radio frequency (RF) signal transmitting circuit, an RF signal receiving circuit, and an electrical signal to optical signal conversion circuit. The input terminal of the optical signal to electrical signal conversion circuit can receive the optical signal output from the CT scanner's optical signal output module. The output terminal of the optical signal to electrical signal conversion circuit is connected to the input terminal of the RF signal transmitting circuit. The output terminal of the RF signal transmitting circuit is wirelessly connected to the input terminal of the RF signal receiving circuit. The output terminal of the RF signal receiving circuit is connected to the input terminal of the electrical signal to optical signal conversion circuit. The output terminal of the electrical signal to optical signal conversion circuit can be connected to the input terminal of a computer's optical signal receiving module. The optical signal to electrical signal conversion circuit converts the optical signal output from the CT scanner's optical signal output module into an electrical signal, which is then transmitted via the RF signal transmitting circuit and the RF signal receiving circuit to the electrical signal to optical signal conversion circuit, converted back into an optical signal, and finally output to the computer's optical signal receiving module.

[0006] This utility model is further improved in that the optical signal to electrical signal circuit includes an optical signal receiving sensor U4, an optical signal to electrical signal chip U2, a capacitor C12, and a capacitor C15. The output terminal of the optical signal receiving sensor U4 has 6 pins, and the optical signal to electrical signal chip U2 has 16 pins. The input terminal of the optical signal receiving sensor U4 can receive the optical signal output by the optical signal output module of the CT scanner. The third pin of the optical signal receiving sensor U4 is connected to one end of the capacitor C12, and the other end of the capacitor C12 is connected to the third pin of the optical signal to electrical signal chip U2. The fourth pin of the optical signal receiving sensor U4 is connected to one end of the capacitor C15, and the other end of the capacitor C15 is connected to the second pin of the optical signal to electrical signal chip U2.

[0007] In a further improvement to this invention, the optical signal to electrical signal circuit is further provided with capacitors C10 and C11. The 10th pin of the optical signal to electrical signal chip U2 is connected to one end of capacitor C10, the 11th pin of the optical signal to electrical signal chip U2 is connected to one end of capacitor C11, and the other ends of capacitors C10 and C11 are connected to the input terminal of the radio frequency signal transmitting circuit.

[0008] This utility model is further improved in that the radio frequency signal transmitting circuit includes an electrical signal receiving chip U9, an radio frequency signal transmitting chip U11, a capacitor C51, and a capacitor C52. The electrical signal receiving chip U9 has 25 pins, and the radio frequency signal transmitting chip U11 has 17 pins. The second pin of the electrical signal receiving chip U9 is connected to the other end of the capacitor C11, the third pin of the electrical signal receiving chip U9 is connected to the other end of the capacitor C10, the fourteenth pin of the electrical signal receiving chip U9 is connected to one end of the capacitor C52, the other end of the capacitor C52 is connected to the fourth pin of the radio frequency signal transmitting chip U11, the fifteenth pin of the electrical signal receiving chip U9 is connected to one end of the capacitor C51, and the other end of the capacitor C51 is connected to the first pin of the radio frequency signal transmitting chip U11.

[0009] This utility model is further improved by including an RF signal transmitting circuit with an RF signal transmitting antenna CN1, capacitors C56, C57, C60, C61, resistors R38, R41, R42, and R43. The RF signal transmitting antenna CN1 has 20 pins. Pin 11 of the RF signal transmitting antenna CN1 is connected to one end of resistor R38. The other end of resistor R38 is connected to one end of capacitor C57. The other end of capacitor C57 is connected to pin 12 of the RF signal transmitting chip U11. Pin 12 of the RF signal transmitting antenna CN1 is connected to one end of resistor R42. The other end of resistor R42 is connected to one end of capacitor C56. The capacitor C56 is connected to the 11th pin of the radio frequency signal transmitting chip U11. The 18th pin of the radio frequency signal transmitting antenna CN1 is connected to one end of the resistor R41. The other end of the resistor R41 is connected to one end of the capacitor C61. The other end of the capacitor C61 is connected to the 10th pin of the radio frequency signal transmitting chip U11. The 19th pin of the radio frequency signal transmitting antenna CN1 is connected to one end of the resistor R43. The other end of the resistor R43 is connected to one end of the capacitor C60. The other end of the capacitor C60 is connected to the 9th pin of the radio frequency signal transmitting chip U11. The radio frequency signal transmitting antenna CN1 is wirelessly connected to the input terminal of the radio frequency signal receiving circuit.

[0010] This utility model is further improved in that the radio frequency signal receiving circuit includes a radio frequency signal receiving chip U13, an electrical signal processing chip U10, a radio frequency signal receiving antenna CN2, capacitors C48, C49, C63, and C64. The radio frequency signal receiving chip U13 has 17 pins, the electrical signal processing chip U10 has 16 pins, and the radio frequency signal receiving antenna CN2 has 2 pins. The radio frequency signal receiving antenna CN2 is communicatively connected to the radio frequency signal transmitting antenna CN1. The second pin of the radio frequency signal receiving chip U13 is connected to one end of capacitor C48. The other end is connected to pin 1 of the radio frequency signal receiving antenna CN2. Pin 3 of the radio frequency signal receiving chip U13 is connected to one end of capacitor C49. The other end of capacitor C49 is connected to pin 2 of the radio frequency signal receiving antenna CN2. Pin 11 of the radio frequency signal receiving chip U13 is connected to one end of capacitor C63. The other end of capacitor C63 is connected to pin 2 of the electrical signal processing chip U10. Pin 10 of the radio frequency signal receiving chip U13 is connected to one end of capacitor C64. The other end of capacitor C64 is connected to pin 3 of the electrical signal processing chip U10.

[0011] This utility model is further improved by including an electrical signal processing chip U12, capacitors C44, C45, C65, and C67 in the radio frequency signal receiving circuit. The electrical signal processing chip U12 has 25 pins. Pin 2 of U12 is connected to one end of capacitor C44, and the other end of capacitor C44 is connected to pin 11 of electrical signal processing chip U10. Pin 3 of U12 is connected to one end of capacitor C47, and the other end of capacitor C47 is connected to pin 10 of electrical signal processing chip U10. Pin 15 of U12 is connected to one end of capacitor C65, and pin 14 of U12 is connected to one end of capacitor C67. The other ends of capacitors C65 and C67 are connected to the input terminal of the electrical signal to optical signal conversion circuit.

[0012] This utility model is further improved in that the electrical signal to optical signal circuit includes an electrical signal to optical signal chip U1, a capacitor C7, and a capacitor C13. The electrical signal to optical signal chip U1 has 20 pins. The 7th pin of the electrical signal to optical signal chip U1 is connected to one end of the capacitor C7, and the other end of the capacitor C7 is connected to the other end of the capacitor C65. The 8th pin of the electrical signal to optical signal chip U1 is connected to one end of the capacitor C13, and the other end of the capacitor C13 is connected to the other end of the capacitor C67.

[0013] This utility model is further improved by including an optical signal output sensor U3, capacitors C8 and C14, an inductor L9, and a resistor R7 in the electrical signal to optical signal conversion circuit. The optical signal output sensor U3 has 6 pins. The 3rd pin of the optical signal output sensor U3 is connected to one end of capacitor C8, and the other end of capacitor C8 is connected to the 19th pin of the electrical signal to optical signal conversion chip U1. The 4th pin of the optical signal output sensor U3 is connected to one end of capacitor C14, and the other end of capacitor C14 is connected to the 18th pin of the electrical signal to optical signal conversion chip U1. The 6th pin of the optical signal output sensor U3 is connected to one end of inductor L9, and the other end of inductor L9 is connected to one end of resistor R7. The other end of resistor R7 can be connected to the input terminal of a computer optical signal receiving module.

[0014] This utility model is further improved in that the optical signal to electrical signal chip U2 is model ONET8501P, the optical signal receiving sensor U4 is model LC-10G-ROSA-SM-DDM or LC-2.5G-ROSA-SM-5PIN, the electrical signal receiving chip U9 is model ADN2915ACPZ, the radio frequency signal transmitting chip U11 is model SY58606UMG-TR, the radio frequency signal receiving chip U13 is model ADCMP580BCPZ-WP, the electrical signal processing chip U10 is model ADN2892, the electrical signal processing chip U12 is model ADN2915ACPZ, the optical signal output sensor U3 is model LC-10G-TOSA-1310-DFB-10km or LC-2.5G-TOSA-1310nm-SM-20km, and the electrical signal to optical signal chip U1 is model ONET8501V.

[0015] Compared with the prior art, the beneficial effects of this utility model are: it provides a non-contact data transmission circuit for CT scanners. By setting up a mutually cooperating optical signal to electrical signal circuit, radio frequency signal transmitting circuit, radio frequency signal receiving circuit, and electrical signal to optical signal circuit in the non-contact data transmission circuit for CT scanners, the optical signal to electrical signal circuit can convert the optical signal output by the CT scanner's optical signal output module into an electrical signal, which is then transmitted through the radio frequency signal transmitting circuit and the radio frequency signal receiving circuit to the electrical signal to optical signal circuit, where it is converted back into an optical signal and finally output to the computer's optical signal receiving module. This enables high-speed data transmission for CT scanners, with a maximum transmission speed of up to 10 Gps per second. Moreover, the optical signal is not easily affected by external interference, solving the problem that the existing data transmission technology for CT scanners, which mainly uses wired transmission and wireless WiFi transmission, cannot meet people's needs. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a non-contact data transmission circuit for a CT scanner according to the present invention.

[0018] Figure 2 This is a circuit diagram of the optical signal to electrical signal conversion circuit of this utility model;

[0019] Figure 3 This is a circuit diagram of the radio frequency signal transmitting circuit of this utility model;

[0020] Figure 4 This is a circuit diagram of the radio frequency signal receiving circuit of this utility model;

[0021] Figure 5 This is a circuit diagram of the electrical signal to optical signal conversion circuit of this utility model. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, this utility model provides a non-contact data transmission circuit for a CT scanner, including an optical signal to electrical signal conversion circuit, a radio frequency (RF) signal transmitting circuit, an RF signal receiving circuit, and an electrical signal to optical signal conversion circuit. The input terminal of the optical signal to electrical signal conversion circuit receives the optical signal output from the CT scanner's optical signal output module. The output terminal of the optical signal to electrical signal conversion circuit is connected to the input terminal of the RF signal transmitting circuit. The output terminal of the RF signal transmitting circuit is wirelessly connected to the input terminal of the RF signal receiving circuit. The output terminal of the RF signal receiving circuit is connected to the input terminal of the electrical signal to optical signal conversion circuit. The output terminal of the electrical signal to optical signal conversion circuit can be connected to the input terminal of a computer's optical signal receiving module. In this embodiment, the optical signal to electrical signal conversion circuit converts the optical signal output from the CT scanner's optical signal output module into an electrical signal, which is then transmitted via the RF signal transmitting and receiving circuits to the electrical signal to optical signal conversion circuit, where it is converted back into an optical signal and finally output to the computer's optical signal receiving module. This enables high-speed data transmission for the CT scanner, reaching a maximum transmission speed of 10 Gps per second, and the optical signal is less susceptible to external interference.

[0026] like Figure 2 As shown, the optical signal to electrical signal conversion circuit includes an optical signal receiving sensor U4, an optical signal to electrical signal chip U2, capacitors C12 and C15. The optical signal to electrical signal chip U2 is an ONET8501P, and the optical signal receiving sensor U4 is either LC-10G-ROSA-SM-DDM or LC-2.5G-ROSA-SM-5PIN. The output terminal of the optical signal receiving sensor U4 has 6 pins, and the optical signal to electrical signal chip U2 has 16 pins. The input terminal of the optical signal receiving sensor U4 can receive the optical signal output from the CT scanner's optical signal output module. The third pin of the optical signal receiving sensor U4... One pin is connected to one end of capacitor C12, and the other end of capacitor C12 is connected to pin 3 of optical signal to electrical signal chip U2. Pin 4 of optical signal receiving sensor U4 is connected to one end of capacitor C15, and the other end of capacitor C15 is connected to pin 2 of optical signal to electrical signal chip U2. The optical signal to electrical signal circuit also includes capacitors C10 and C11. Pin 10 of optical signal to electrical signal chip U2 is connected to one end of capacitor C10, and pin 11 of optical signal to electrical signal chip U2 is connected to one end of capacitor C11. The other ends of capacitors C10 and C11 are connected to the input terminal of the radio frequency signal transmitting circuit. In this embodiment, the optical signal to electrical signal circuit is used to convert the optical signal output by the CT scanner's optical signal output module into an electrical signal and transmit it to the radio frequency signal transmitting circuit.

[0027] like Figure 3As shown, the radio frequency (RF) signal transmitting circuit includes an electrical signal receiving chip U9, an RF signal transmitting chip U11, capacitors C51 and C52. The electrical signal receiving chip U9 is model ADN2915ACPZ, and the RF signal transmitting chip U11 is model SY58606UMG-TR. The electrical signal receiving chip U9 has 25 pins, and the RF signal transmitting chip U11 has 17 pins. Pin 2 of the electrical signal receiving chip U9 is connected to the other end of capacitor C11, and pin 3 of the electrical signal receiving chip U9 is connected to capacitor C52. The other end of the circuit is connected to the RF signal transmitting chip U11. Pin 14 of the RF signal receiving chip U9 is connected to one end of capacitor C52, and the other end of capacitor C52 is connected to pin 4 of the RF signal transmitting chip U11. Pin 15 of the RF signal receiving chip U9 is connected to one end of capacitor C51, and the other end of capacitor C51 is connected to pin 1 of the RF signal transmitting chip U11. The RF signal transmitting circuit also includes an RF signal transmitting antenna CN1, capacitors C56, C57, C60, and C61, resistors R38, R41, R42, and resistor R42. R43, the RF signal transmitting antenna CN1 has 20 pins. Pin 11 of the RF signal transmitting antenna CN1 is connected to one end of resistor R38. The other end of resistor R38 is connected to one end of capacitor C57. The other end of capacitor C57 is connected to pin 12 of the RF signal transmitting chip U11. Pin 12 of the RF signal transmitting antenna CN1 is connected to one end of resistor R42. The other end of resistor R42 is connected to one end of capacitor C56. The other end of capacitor C56 is connected to pin 11 of the RF signal transmitting chip U11. Pin 18 of the transmitting antenna CN1 is connected to one end of resistor R41, the other end of resistor R41 is connected to one end of capacitor C61, the other end of capacitor C61 is connected to pin 10 of the RF signal transmitting chip U11, pin 19 of the RF signal transmitting antenna CN1 is connected to one end of resistor R43, the other end of resistor R43 is connected to one end of capacitor C60, the other end of capacitor C60 is connected to pin 9 of the RF signal transmitting chip U11, and the RF signal transmitting antenna CN1 is wirelessly connected to the input terminal of the RF signal receiving circuit. In this embodiment, the RF signal transmitting circuit is used to process the electrical signal transmitted by the optical signal to electrical signal circuit and then transmit it to the RF signal receiving circuit through the RF signal transmitting antenna CN1.

[0028] like Figure 4As shown, the RF signal receiving circuit includes an RF signal receiving chip U13, an electrical signal processing chip U10, an RF signal receiving antenna CN2, capacitors C48, C49, C63, and C64. The electrical signal processing chip U10 is model ADN2892, the electrical signal processing chip U12 is model ADN2915ACPZ, and the RF signal receiving chip U13 is model ADCMP580BCPZ-WP. The RF signal receiving chip U13 has 17 pins. The electrical signal processing chip U10... The system has 16 pins. The RF signal receiving antenna CN2 has 2 pins and is communicatively connected to the RF signal transmitting antenna CN1. Pin 2 of the RF signal receiving chip U13 is connected to one end of capacitor C48, and the other end of capacitor C48 is connected to pin 1 of the RF signal receiving antenna CN2. Pin 3 of the RF signal receiving chip U13 is connected to one end of capacitor C49, and the other end of capacitor C49 is connected to pin 2 of the RF signal receiving antenna CN2. Pin 11 of the RF signal receiving chip U13... One pin is connected to one end of capacitor C63, and the other end of capacitor C63 is connected to pin 2 of electrical signal processing chip U10. Pin 10 of RF signal receiving chip U13 is connected to one end of capacitor C64, and the other end of capacitor C64 is connected to pin 3 of electrical signal processing chip U10. The RF signal receiving circuit also includes electrical signal processing chip U12, capacitors C44, C45, C65, and C67. Electrical signal processing chip U12 has 25 pins, and pin 2 of electrical signal processing chip U12 is connected to one end of capacitor C64. One end of capacitor C44 is connected to pin 11 of the electrical signal processing chip U10. Pin 3 of the electrical signal processing chip U12 is connected to one end of capacitor C47, and the other end of capacitor C47 is connected to pin 10 of the electrical signal processing chip U10. Pin 15 of the electrical signal processing chip U12 is connected to one end of capacitor C65, and pin 14 of the electrical signal processing chip U12 is connected to one end of capacitor C67. The other ends of capacitors C65 and C67 are connected to the input terminal of the electrical signal to optical signal conversion circuit. In this embodiment, the radio frequency signal receiving circuit is used to receive the electrical signal emitted by the radio frequency signal transmitting circuit and, after processing, transmit it to the electrical signal to optical signal conversion circuit.

[0029] like Figure 5As shown, the electrical signal to optical signal conversion circuit includes an electrical signal to optical signal conversion chip U1, capacitor C7, and capacitor C13. The optical signal output sensor U3 is model LC-10G-TOSA-1310-DFB-10km or LC-2.5G-TOSA-1310nm-SM-20km. The electrical signal to optical signal conversion chip U1 is model ONET8501V and has 20 pins. Pin 7 of the electrical signal to optical signal conversion chip U1 is connected to one end of capacitor C7, and the other end of capacitor C7 is connected to the other end of capacitor C65. Pin 8 of the electrical signal to optical signal conversion chip U1 is connected to one end of capacitor C13, and the other end of capacitor C13 is connected to the other end of capacitor C67. The electrical signal to optical signal conversion circuit also includes an optical signal output sensor U3, capacitors C8 and C14, an inductor L9, and a resistor R7. The optical signal output sensor U3 has six pins. Pin 3 of the optical signal output sensor U3 is connected to one end of capacitor C8, and the other end of capacitor C8 is connected to pin 19 of the electrical signal to optical signal conversion chip U1. Pin 4 of the optical signal output sensor U3 is connected to one end of capacitor C14, and the other end of capacitor C14 is connected to pin 18 of the electrical signal to optical signal conversion chip U1. Pin 6 of the optical signal output sensor U3 is connected to one end of inductor L9, and the other end of inductor L9 is connected to one end of resistor R7. The other end of resistor R7 can be connected to the input terminal of the computer's optical signal receiving module. In this embodiment, the electrical signal to optical signal conversion circuit is used to convert the electrical signal transmitted from the radio frequency signal receiving circuit into an optical signal and output it to the input terminal of the computer's optical signal receiving module.

[0030] As can be seen from the above, this utility model provides a non-contact data transmission circuit for CT scanners. By setting up a mutually cooperating optical signal to electrical signal circuit, radio frequency signal transmitting circuit, radio frequency signal receiving circuit, and electrical signal to optical signal circuit in the non-contact data transmission circuit for CT scanners, the optical signal to electrical signal circuit can convert the optical signal output by the CT scanner's optical signal output module into an electrical signal, which is then transmitted through the radio frequency signal transmitting circuit and the radio frequency signal receiving circuit to the electrical signal to optical signal circuit, where it is converted back into an optical signal and finally output to the computer's optical signal receiving module. This enables high-speed data transmission for CT scanners, with a maximum transmission speed of up to 10 Gps per second. Moreover, the optical signal is not easily affected by external interference, solving the problem that the existing data transmission technology for CT scanners, which mainly uses wired transmission and wireless WiFi transmission, cannot meet people's needs.

[0031] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A non-contact data transmission circuit for a CT scanner, characterized in that: The system includes an optical signal to electrical signal conversion circuit, a radio frequency (RF) signal transmitting circuit, an RF signal receiving circuit, and an electrical signal to optical signal conversion circuit. The input terminal of the optical signal to electrical signal conversion circuit can receive the optical signal output by the CT scanner's optical signal output module. The output terminal of the optical signal to electrical signal conversion circuit is connected to the input terminal of the RF signal transmitting circuit. The output terminal of the RF signal transmitting circuit is wirelessly connected to the input terminal of the RF signal receiving circuit. The output terminal of the RF signal receiving circuit is connected to the input terminal of the electrical signal to optical signal conversion circuit. The output terminal of the electrical signal to optical signal conversion circuit can be connected to the input terminal of the computer's optical signal receiving module. The optical signal to electrical signal conversion circuit can convert the optical signal output by the CT scanner's optical signal output module into an electrical signal, which is then transmitted through the RF signal transmitting circuit and the RF signal receiving circuit to the electrical signal to optical signal conversion circuit, converted back into an optical signal, and finally output to the computer's optical signal receiving module.

2. The non-contact data transmission circuit for a CT scanner according to claim 1, characterized in that: The optical signal to electrical signal conversion circuit includes an optical signal receiving sensor U4, an optical signal to electrical signal conversion chip U2, capacitors C12 and C15. The output terminal of the optical signal receiving sensor U4 has 6 pins, and the optical signal to electrical signal conversion chip U2 has 16 pins. The input terminal of the optical signal receiving sensor U4 can receive the optical signal output by the optical signal output module of the CT scanner. The third pin of the optical signal receiving sensor U4 is connected to one end of the capacitor C12, and the other end of the capacitor C12 is connected to the third pin of the optical signal to electrical signal conversion chip U2. The fourth pin of the optical signal receiving sensor U4 is connected to one end of the capacitor C15, and the other end of the capacitor C15 is connected to the second pin of the optical signal to electrical signal conversion chip U2.

3. The non-contact data transmission circuit for a CT scanner according to claim 2, characterized in that: The optical signal to electrical signal circuit also includes capacitors C10 and C11. The 10th pin of the optical signal to electrical signal chip U2 is connected to one end of capacitor C10, and the 11th pin of the optical signal to electrical signal chip U2 is connected to one end of capacitor C11. The other ends of capacitors C10 and C11 are connected to the input terminal of the radio frequency signal transmitting circuit.

4. The non-contact data transmission circuit for a CT scanner according to claim 3, characterized in that: The radio frequency signal transmitting circuit includes an electrical signal receiving chip U9, an radio frequency signal transmitting chip U11, capacitor C51, and capacitor C52. The electrical signal receiving chip U9 has 25 pins, and the radio frequency signal transmitting chip U11 has 17 pins. The second pin of the electrical signal receiving chip U9 is connected to the other end of capacitor C11, the third pin of the electrical signal receiving chip U9 is connected to the other end of capacitor C10, the fourteenth pin of the electrical signal receiving chip U9 is connected to one end of capacitor C52, the other end of capacitor C52 is connected to the fourth pin of the radio frequency signal transmitting chip U11, the fifteenth pin of the electrical signal receiving chip U9 is connected to one end of capacitor C51, and the other end of capacitor C51 is connected to the first pin of the radio frequency signal transmitting chip U11.

5. The non-contact data transmission circuit for a CT scanner according to claim 4, characterized in that: The radio frequency (RF) signal transmitting circuit also includes an RF signal transmitting antenna CN1, capacitors C56, C57, C60, C61, resistors R38, R41, R42, and R43. The RF signal transmitting antenna CN1 has 20 pins. Pin 11 of the RF signal transmitting antenna CN1 is connected to one end of resistor R38. The other end of resistor R38 is connected to one end of capacitor C57. The other end of capacitor C57 is connected to pin 12 of the RF signal transmitting chip U11. Pin 12 of the RF signal transmitting antenna CN1 is connected to one end of resistor R42. The other end of resistor R42 is connected to one end of capacitor C56. The other end of capacitor C56 is connected to pin 11 of the RF signal transmitting chip U11. Pin 18 of the RF signal transmitting antenna CN1 is connected to one end of resistor R41. The other end of resistor R41 is connected to one end of capacitor C61. The other end of capacitor C61 is connected to pin 10 of the RF signal transmitting chip U11. Pin 19 of the RF signal transmitting antenna CN1 is connected to one end of resistor R43. The other end of resistor R43 is connected to one end of capacitor C60. The other end of capacitor C60 is connected to pin 9 of the RF signal transmitting chip U11. The RF signal transmitting antenna CN1 is wirelessly connected to the input terminal of the RF signal receiving circuit.

6. The non-contact data transmission circuit for a CT scanner according to claim 5, characterized in that: The radio frequency (RF) signal receiving circuit includes an RF signal receiving chip U13, an electrical signal processing chip U10, an RF signal receiving antenna CN2, capacitors C48, C49, C63, and C64. The RF signal receiving chip U13 has 17 pins, the electrical signal processing chip U10 has 16 pins, and the RF signal receiving antenna CN2 has 2 pins. The RF signal receiving antenna CN2 is communicatively connected to the RF signal transmitting antenna CN1. The second pin of the RF signal receiving chip U13 is connected to one end of capacitor C48, and the other end of capacitor C48 is connected to... The first pin of the radio frequency signal receiving antenna CN2 is connected to the second pin of the radio frequency signal receiving chip U13, the third pin of the radio frequency signal receiving chip U13 is connected to one end of the capacitor C49, the other end of the capacitor C49 is connected to the second pin of the radio frequency signal receiving antenna CN2, the eleventh pin of the radio frequency signal receiving chip U13 is connected to one end of the capacitor C63, the other end of the capacitor C63 is connected to the second pin of the electrical signal processing chip U10, the tenth pin of the radio frequency signal receiving chip U13 is connected to one end of the capacitor C64, and the other end of the capacitor C64 is connected to the third pin of the electrical signal processing chip U10.

7. The non-contact data transmission circuit for a CT scanner according to claim 6, characterized in that: The radio frequency signal receiving circuit also includes an electrical signal processing chip U12, capacitors C44, C45, C65, and C67. The electrical signal processing chip U12 has 25 pins. The second pin of the electrical signal processing chip U12 is connected to one end of capacitor C44, and the other end of capacitor C44 is connected to the 11th pin of the electrical signal processing chip U10. The third pin of the electrical signal processing chip U12 is connected to one end of capacitor C47, and the other end of capacitor C47 is connected to the 10th pin of the electrical signal processing chip U10. The 15th pin of the electrical signal processing chip U12 is connected to one end of capacitor C65, and the 14th pin of the electrical signal processing chip U12 is connected to one end of capacitor C67. The other ends of capacitors C65 and C67 are connected to the input terminal of the electrical signal to optical signal conversion circuit.

8. The non-contact data transmission circuit for a CT scanner according to claim 7, characterized in that: The electrical signal to optical signal conversion circuit includes an electrical signal to optical signal conversion chip U1, a capacitor C7, and a capacitor C13. The electrical signal to optical signal conversion chip U1 has 20 pins. The 7th pin of the electrical signal to optical signal conversion chip U1 is connected to one end of the capacitor C7, and the other end of the capacitor C7 is connected to the other end of the capacitor C65. The 8th pin of the electrical signal to optical signal conversion chip U1 is connected to one end of the capacitor C13, and the other end of the capacitor C13 is connected to the other end of the capacitor C67.

9. The non-contact data transmission circuit for a CT scanner according to claim 8, characterized in that: The electrical signal to optical signal conversion circuit also includes an optical signal output sensor U3, capacitors C8 and C14, an inductor L9, and a resistor R7. The optical signal output sensor U3 has 6 pins. The 3rd pin of the optical signal output sensor U3 is connected to one end of capacitor C8, and the other end of capacitor C8 is connected to the 19th pin of the electrical signal to optical signal conversion chip U1. The 4th pin of the optical signal output sensor U3 is connected to one end of capacitor C14, and the other end of capacitor C14 is connected to the 18th pin of the electrical signal to optical signal conversion chip U1. The 6th pin of the optical signal output sensor U3 is connected to one end of inductor L9, and the other end of inductor L9 is connected to one end of resistor R7. The other end of resistor R7 can be connected to the input terminal of the computer optical signal receiving module.

10. The non-contact data transmission circuit for a CT scanner according to claim 9, characterized in that: The optical signal to electrical signal chip U2 is model ONET8501P, the optical signal receiving sensor U4 is model LC-10G-ROSA-SM-DDM or LC-2.5G-ROSA-SM-5PIN, the electrical signal receiving chip U9 is model ADN2915ACPZ, the radio frequency signal transmitting chip U11 is model SY58606UMG-TR, the radio frequency signal receiving chip U13 is model ADCMP580BCPZ-WP, the electrical signal processing chip U10 is model ADN2892, the electrical signal processing chip U12 is model ADN2915ACPZ, the optical signal output sensor U3 is model LC-10G-TOSA-1310-DFB-10km or LC-2.5G-TOSA-1310nm-SM-20km, and the electrical signal to optical signal chip U1 is model ONET8501V.

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