CT detection system

Abstract

The utility model provides a CT (Computed Tomography) detection system which comprises a computer, an under-ring signal conversion device, a CT slip ring, an on-ring signal conversion device and a detector, the under-ring signal conversion device is arranged between the computer and the CT slip ring, provides an under-ring image instruction unit for the computer, and provides an under-ring instruction unit and an under-ring image unit for the CT slip ring; instructions and images are smoothly transmitted between the computer and the CT slip ring; the on-ring signal conversion device is arranged between the CT slip ring and the detector, provides an on-ring instruction unit and an on-ring image unit for the CT slip ring, and provides an on-ring image instruction unit for the detector, so that instructions and images are smoothly transmitted between the CT slip ring and the detector. In conclusion, the on-ring signal device and the off-ring signal device can enable the detector to be directly applied to the CT equipment. In addition, the device has the advantages of being simple in structure, convenient to operate and easy to implement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of image detection, especially a CT detection system. BACKGROUND

[0002] In the existing spiral CT detection equipment, in order to obtain continuous and stable spiral CT images, a dedicated CT slip ring is generally used for image acquisition and transmission. Flat panel detectors are widely used in medical and industrial non-destructive testing fields, and various poses of target objects can be detected using flat panel detectors. Therefore, flat panel detectors can also be applied to CT equipment.

[0003] However, flat panel detectors cannot be directly applied to CT equipment with a slip ring. This is because the CT slip ring can only transmit instructions and images in two separate channels, while the detector and the computer can transmit images and instructions together in one channel. Therefore, when the flat panel detector, the CT slip ring and the computer are directly connected, a channel mismatch will occur. In addition, if a flat panel detector is specially designed to match the transmission characteristics of the CT slip ring channel, it needs to be developed separately from the existing flat panel detector control system. This not only takes time and effort, but also cannot be compatible with the control system of conventional flat panel detectors, which is not convenient for platform management of products.

[0004] Therefore, how to design a CT detection system that allows flat panel detectors to be directly connected to the CT slip ring and the computer for signal transmission has become one of the problems to be solved by those skilled in the art.

[0005] It should be noted that the above introduction to the technical background is only to facilitate a clear and complete description of the technical scheme of the utility model, and to facilitate the understanding of those skilled in the art. The above technical scheme cannot be considered as known to those skilled in the art just because it is described in the background section of the utility model. CONTENT OF THE UTILITY MODEL

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a CT detection system to solve the problem that flat panel detectors cannot be directly connected to the CT slip ring and the computer for signal transmission in the prior art.

[0007] To achieve the above object and other related objects, the utility model provides a CT detection system, the CT detection system at least includes: computer, ring under signal conversion device, CT slip ring, ring on signal conversion device and detector, the ring under signal conversion device sets up between the computer and the CT slip ring, transmission and conversion computer and CT slip ring between image and instruction, the ring on signal conversion device sets up between the CT slip ring and the detector, transmission and conversion CT slip ring and detector between image, instruction and trigger signal.

[0008] Optionally, the ring under signal conversion device includes: ring under image instruction unit, ring under data analysis unit, ring under instruction unit and ring under image unit, the first end of ring under image instruction unit is connected to the computer in both directions, and the second end is connected to the first end of ring under data analysis unit in both directions, the first end of ring under instruction unit is connected to the second end of ring under data analysis unit in both directions, and the second end is connected to the CT slip ring in both directions, the input end of ring under image unit is connected to the CT slip ring, and the output end is connected to the second end of ring under data analysis unit.

[0009] More optionally, the ring under signal conversion device further includes a ring under image cache unit, and the ring under image cache unit is connected to the ring under data analysis unit in both directions.

[0010] Optionally, the ring on signal conversion device includes: an image instruction processing module and a trigger signal processing module, the image instruction processing module is connected between the CT slip ring and the detector, the image instruction processing module transmits and analyzes the image and the instruction between the CT slip ring and the detector, the trigger signal processing module is connected between the CT slip ring and the detector, and the trigger signal processing module transmits and analyzes the trigger signal sent from the CT slip ring to the detector.

[0011] More optionally, the image instruction processing module includes: a ring on instruction unit, a ring on image unit, a ring on data analysis unit and a ring on image instruction unit, the first end of the ring on instruction unit is connected to the CT slip ring in both directions, the second end is connected to the first end of the ring on data analysis unit in both directions, the input end of the ring on image unit is connected to the first end of the ring on data analysis unit, and the output end is connected to the CT slip ring, the first end of the ring on image instruction unit is connected to the second end of the ring on data analysis unit in both directions, and the second end of the ring on image instruction unit is connected to the detector in both directions.

[0012] More optionally, the image instruction processing module further includes a ring on image cache unit, and the ring on image cache unit is connected to the ring on data analysis unit in both directions.

[0013] Optionally, the trigger signal processing module comprises a trigger signal receiving unit, a trigger signal processing unit and a trigger signal sending unit; the input end of the trigger signal receiving unit is connected with the CT slip ring, and the output end is connected with the input end of the trigger signal processing unit; the trigger signal receiving unit receives the trigger signal and transmits it to the trigger signal processing unit; the first output end of the trigger signal processing unit is connected with the input end of the trigger signal sending unit; the trigger signal processing unit analyzes the trigger signal and transmits it to the trigger signal sending unit; the output end of the trigger signal sending unit is connected with the detector; the trigger signal sending unit sends the trigger signal to the detector.

[0014] More optionally, the trigger signal processing unit further comprises a second output end, and the second output end of the trigger signal processing unit is connected with the image instruction processing module and transmits the analysis information of the trigger signal to the image instruction processing module.

[0015] As described above, the CT detection system has the following beneficial effects:

[0016] 1. The CT detection system of the utility model sets up the ring under signal conversion device between the computer and the CT slip ring, and sets up the ring under image instruction unit for the computer to meet the demand of the computer in one channel transmission instruction and image, and sets up the ring under instruction unit and the ring under image unit for the CT slip ring to meet the demand of the CT slip ring in two separate channels transmission instruction and image, solves the problem that data cannot be transmitted due to the mismatch of channels between the computer and the CT slip ring.

[0017] 2. The CT detection system of the utility model further sets up the ring under image cache unit in the ring under signal conversion device to ensure that the transmission bandwidth of different kinds of slip rings is compatible with the image acquisition rate of the computer.

[0018] 3. The CT detection system of the utility model sets up the ring on signal conversion device between the CT slip ring and the detector, and sets up the ring on instruction unit and the ring on image unit for the CT slip ring to meet the demand of the CT in two separate channels transmission instruction and image, and sets up the ring under image instruction unit for the detector to meet the demand of the detector in one channel transmission instruction and image, solves the problem that data cannot be transmitted due to the mismatch of channels between the CT slip ring and the detector.

[0019] 4. The CT detection system of the utility model further sets up the ring on image cache unit in the ring on signal conversion device to ensure the real-time performance and accuracy of the data processing of the ring on data analysis module. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is shown that the first structure of the CT detection system of the utility model is a schematic diagram.

[0021] Figure 2 A first structure schematic diagram of the ring-under signal conversion device is shown.

[0022] Figure 3 A second structure schematic diagram of the ring-under signal conversion device is shown.

[0023] Figure 4 A first structure schematic diagram of the ring-over signal conversion device is shown.

[0024] Figure 5 A second structure schematic diagram of the ring-over signal conversion device is shown.

[0025] Figure 6 A third structure schematic diagram of the ring-over signal conversion device is shown.

[0026] Figure 7 A second structure schematic diagram of the CT detection system is shown.

[0027] Element number explanation

[0028] 1 computer

[0029] 2 ring-under signal conversion device

[0030] 2a ring-under image instruction unit

[0031] 2b ring-under data analysis unit

[0032] 2c ring-under instruction unit

[0033] 2d ring-under image unit

[0034] 2e ring-under image cache unit

[0035] 3 CT slip ring

[0036] 4 ring-over signal conversion device

[0037] 41 image instruction processing module

[0038] 4a ring-over instruction unit

[0039] 4b ring-over image unit

[0040] 4c ring-over data analysis unit

[0041] 4d ring-over image instruction unit

[0042] 4h ring-over image cache unit

[0043] 42 trigger signal processing unit

[0044] 4e trigger signal receiving unit

[0045] 4g trigger signal processing unit

[0046] 4f trigger signal sending unit

[0047] 5 detector DETAILED DESCRIPTION

[0048] The present application can be implemented or applied in other different embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0049] Please refer to Figures 1-7 . It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the diagrams, not the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be randomly changed, and the layout of the components can be more complex.

[0050] When the flat panel detector is applied in a CT device, the working process is as follows: first, the computer sends an instruction to the CT slip ring, the CT slip ring continues to send an instruction to the flat panel detector after receiving the instruction, and the flat panel detector starts to collect the image of the target object after receiving the instruction; then, the flat panel detector sends the image and the instruction to the CT slip ring, and the CT slip ring sends them to the computer after receiving them, and the computer receives the instruction and the image and performs subsequent processing. Therefore, the signal transmission among the flat panel detector, the CT slip ring and the computer is relatively complex. In order to meet the needs of the above working process, the specific scheme of the present application is as follows:

[0051] Embodiment one

[0052] As shown in Figure 1 , the present embodiment provides a CT detection system, which comprises a computer 1, a signal conversion device under the ring 2, a CT slip ring 3, a signal conversion device on the ring 4 and a detector 5.

[0053] As shown in Figure 2 , the signal conversion device under the ring 2 is arranged between the computer 1 and the CT slip ring 3, and transmits and converts the image and the instruction between the computer 1 and the CT slip ring 3.

[0054] Specifically, in the present embodiment, as shown in Figure 2As shown, the under-ring signal conversion device 2 comprises an under-ring image instruction unit 2a, an under-ring data analysis unit 2b, an under-ring instruction unit 2c and an under-ring image unit 2d. Further, the first end of the under-ring image instruction unit 2a is bidirectionally connected to the computer 1, and the second end is bidirectionally connected to the first end of the under-ring data analysis unit 2b. The under-ring image instruction unit 2a can process both images and instructions, and meets the requirement of transmitting images and instructions in one channel when the computer 1 communicates with the CT slip ring 3. The bidirectional connection between the two ends of the under-ring image instruction unit 2a means that instructions can be bidirectionally transmitted among the computer 1, the under-ring image instruction unit 2a and the data analysis unit 2b, but images can only be unidirectionally transmitted from the data analysis unit 2b, the under-ring image instruction unit 2a to the computer 1. Further, the under-ring data analysis unit 2b can unpack the image instruction data packet (corresponding to the data packet in the under-ring image instruction unit 2a) into an image data packet (corresponding to the data packet in the under-ring image unit 2d) and an instruction data packet (corresponding to the data packet in the under-ring instruction unit 2c), or can pack the instruction data packet and the image data packet into an image instruction data packet. Further, the first end of the under-ring instruction unit 2c is bidirectionally connected to the second end of the under-ring data analysis unit 2b, and the second end is bidirectionally connected to the CT slip ring 3. The under-ring instruction unit 2c meets the requirement of transmitting instructions in a separate channel by the CT slip ring 3, and instructions can be bidirectionally transmitted among the under-ring data analysis unit 2b, the under-ring instruction unit 2c and the CT slip ring 3. Further, the input end of the under-ring image unit 2d is connected to the CT slip ring 3, and the output end is connected to the second end of the under-ring data analysis unit 2b. The under-ring image unit 2d meets the requirement of transmitting images in a separate channel by the CT slip ring 3, and images are unidirectionally transmitted from the CT slip ring 3, the under-ring image unit 2d to the under-ring data analysis unit 2b.

[0055] Specifically, in the embodiment, as shown in Figure 3 Further, the under-ring signal conversion device 2 further comprises an under-ring image cache unit 2e connected to the under-ring data analysis unit 2b and bidirectionally transmitting data with the under-ring data analysis unit 2b. When the number of images is huge, the under-ring image cache unit 2e can make the transmission bandwidth of different kinds of slip rings compatible with the image acquisition rate of the computer.

[0056] As shown in Figure 4 The over-ring signal conversion device 4 is arranged between the CT slip ring 3 and the detector 5, and transmits images, instructions and trigger signals between the CT slip ring 3 and the detector 5.

[0057] Specifically, in the embodiment, the on-ring signal conversion device 4 comprises an image instruction processing module 41 and a trigger signal processing module 42. Further, the image instruction processing module 41 is connected between the CT slip ring 3 and the detector 5, the image instruction processing module 41 transmits and analyzes the instructions transmitted between the detector 5 and the CT slip ring 3 in both directions, and the images transmitted from the detector to the CT slip ring 3. Still further, the trigger signal processing module 42 is connected between the CT slip ring 3 and the detector 5, the trigger signal processing module 42 transmits and analyzes the trigger signals sent from the CT slip ring 3 to the detector 5, and the trigger signals are one of the necessary signals for the detector 5 to acquire images.

[0058] Specifically, in the embodiment, as shown in Figure 4 the image instruction processing module 41 comprises an on-ring instruction unit 4a, an on-ring image unit 4b, an on-ring data analysis unit 4c and an on-ring image instruction unit 4d. Further, the first end of the on-ring instruction unit 4a is bidirectionally connected to the CT slip ring 3, and the second end is bidirectionally connected to the first end of the on-ring data analysis unit 4c, the on-ring instruction unit 4a meets the need that the CT slip ring 3 can only transmit instructions in one channel, and at the same time, the instructions can be transmitted between the CT slip ring 3 and the on-ring data analysis unit 4c in both directions during the transmission of the instructions. Still further, the on-ring data analysis unit 4c can package the instruction data packet (corresponding to the data packet in the on-ring instruction unit 4a) and the image data packet (corresponding to the data packet in the on-ring image unit 4b) into an image instruction data packet (corresponding to the data packet in the on-ring image instruction unit 4d), or unpack the image instruction data packet into an image data packet and an instruction data packet. Still further, the input end of the on-ring image unit 4b is connected to the first end of the on-ring data analysis unit 4c, and the output end is connected to the CT slip ring 3, the on-ring image unit 4b meets the need that the CT slip ring 3 can only transmit images in one channel, and at the same time, the image can only be transmitted from the on-ring data analysis unit 4c to the CT slip ring 3 in one direction during the transmission of the image. Still further, the first end of the on-ring image instruction unit 4d is bidirectionally connected to the second end of the on-ring data analysis unit 4c, and the second end of the on-ring image instruction unit 4d is bidirectionally connected to the detector 5, the on-ring image instruction unit 4d meets the need that the detector 5 and the CT slip ring 3 communicate in one channel when transmitting images and instructions, and at the same time, the image can only be transmitted from the detector 5 to the on-ring data analysis unit 4c in one direction during the transmission of the image.

[0059] Specifically, in the embodiment, as shown in Figure 5The image instruction processing module 41 further comprises an on-ring image buffer unit 4h; the on-ring image buffer unit 4h is bidirectionally connected to the on-ring data analysis unit 4c; the on-ring image buffer unit 4h and the on-ring data analysis unit 4c bidirectionally transmit images; the on-ring image buffer unit 4h is arranged to ensure the real-time performance and accuracy of the on-ring data analysis unit 4c when the image processing amount is large.

[0060] Specifically, in the embodiment, as shown in Figure 4 The trigger signal processing module 42 comprises a trigger signal receiving unit 4e, a trigger signal processing unit 4g and a trigger signal sending unit 4f; the trigger signal processing module 42 is arranged to enable the detector 5 to collect the target object when the detector 5 simultaneously receives the instruction and the trigger signal. Further, the input end of the trigger signal receiving unit 4e is connected to the CT slip ring 3, and the output end is connected to the input end of the trigger signal processing unit 4g; the trigger signal receiving unit 4e receives the trigger signal and transmits it to the trigger signal processing unit 4g; the first output end of the trigger signal processing unit 4g is connected to the input end of the trigger signal sending unit 4f; the trigger signal processing unit 4g analyzes the trigger signal and transmits it to the trigger signal sending unit 4f; the output end of the trigger signal sending unit 4f is connected to the detector 5; the trigger signal sending unit 4f sends the trigger signal to the detector 4; thus, the trigger signal is unidirectionally transmitted from the CT slip ring 3 to the detector 5 to trigger the detector 5.

[0061] Specifically, in the embodiment, as shown in Figure 6 The trigger signal processing unit 4g further comprises a second output end; the second output end of the trigger signal processing unit 4g is connected to the image instruction processing module 41 and transmits the analysis information of the trigger signal to the image instruction processing module 41; as an example, as shown in Figure 3 The trigger signal processing unit 4g is connected to the on-ring data analysis unit 4c and transmits the calibration information such as the trigger time and trigger position of the CT slip ring 3 to the on-ring data analysis unit 4c; after the detector 5 transmits the image to the on-ring data analysis unit 4c, the on-ring data analysis unit 4c calibrates the calibration information to the corresponding image. In actual application, the specific connection relationship between the trigger signal processing unit 42 and the image instruction processing module 42 is set as needed, which is not limited to the embodiment.

[0062] It should be noted that the specific working process of the CT detection system is as follows: as an example, as shown in Figure 7As shown, in the first step, the computer 1 sends instructions to the under-ring image instruction unit 2a and transmits to the under-ring data analysis unit 2b, the under-ring data analysis unit 2b identifies the instructions and transmits to the under-ring instruction unit 2c, and the under-ring instruction unit 2c transmits to the CT slip ring 3; in the second step, the CT slip ring 3 receives the instructions and transmits to the over-ring instruction unit 4a, the over-ring data analysis unit 4c, the over-ring image instruction unit 4d and the detector 5 in turn; in addition, the CT slip ring 3 also transmits the trigger signal to the trigger signal receiving unit 4e, the trigger signal processing unit 4g, the trigger signal sending unit 4f and the detector 5 in turn, and the trigger signal processing unit 4g transmits the calibration information to the over-ring data analysis unit 4c; in the third step, after the detector 5 receives the instructions and the trigger signal, it starts to collect images of the target object; in the fourth step, the detector 5 transmits the collected images and the regenerated instructions to the over-ring image instruction unit 4d, and after the over-ring data analysis unit 4c receives the images and the instructions, it first calibrates the calibration information to the corresponding images, and then sends the images and the instructions to the over-ring image unit 4b and the over-ring instruction unit 4a respectively, the over-ring image unit 4b sends the images to the CT slip ring 3, and the over-ring instruction unit 4a sends the instructions to the CT slip ring 3; in the fifth step, the under-ring image unit 2d and the under-ring instruction unit 2c receive the images and the instructions of the CT slip ring 3 respectively and transmit to the under-ring data analysis unit 2b, and the under-ring data analysis unit 2b transmits the images and the instructions to the under-ring image instruction unit 2a and the computer 1 in turn, and finally the computer 1 receives the instructions and the images and can process the images collected by the detector 5. In practical application, the specific working process of the CT detection system is set according to actual needs, and is not limited to the embodiment.

[0063] In summary, the CT detection system of the utility model includes computer, under-ring signal conversion device, CT slip ring, over-ring signal conversion device and detector: the under-ring signal conversion device is arranged between the computer and the CT slip ring, provides the under-ring image instruction unit for the computer, and provides the under-ring instruction unit and the under-ring image unit for the CT slip ring, so that the instructions and the images are smoothly transmitted between the computer and the CT slip ring; the over-ring signal conversion device is arranged between the CT slip ring and the detector, provides the over-ring instruction unit and the over-ring image unit for the CT slip ring, and provides the over-ring image instruction unit for the detector, so that the instructions and the images are smoothly transmitted between the CT slip ring and the detector. In summary, the over-ring signal device and the under-ring signal device of the utility model can make the computer control the detector through the CT slip ring, and make the images collected by the detector be transmitted to the computer, realize the purpose of directly applying the detector to the CT equipment. In addition, the under-ring signal conversion device and the over-ring signal device of the utility model have the advantages of simple structure, convenient operation and easy realization. Therefore, the utility model effectively overcomes the shortcomings in the prior art and has high industrial utilization value.

[0064] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A CT detection system, characterized by, The CT detection system comprises at least a computer, a ring-under signal conversion device, a CT slip ring, a ring-over signal conversion device and a detector. The ring-under signal conversion device is arranged between the computer and the CT slip ring, and is configured to transmit and convert images and instructions between the computer and the CT slip ring. The ring-over signal conversion device is arranged between the CT slip ring and the detector, and is configured to transmit and convert images, instructions and trigger signals between the CT slip ring and the detector.

2. The CT detection system of claim 1, wherein, The ring-under signal conversion device comprises a ring-under image instruction unit, a ring-under data analysis unit, a ring-under instruction unit and a ring-under image unit. The first end of the ring-under image instruction unit is bidirectionally connected to the computer, and the second end is bidirectionally connected to the first end of the ring-under data analysis unit. The first end of the ring-under instruction unit is bidirectionally connected to the second end of the ring-under data analysis unit, and the second end is bidirectionally connected to the CT slip ring. The input end of the ring-under image unit is connected to the CT slip ring, and the output end is connected to the second end of the ring-under data analysis unit.

3. The CT detection system of claim 2, wherein: The ring-under signal conversion device further comprises a ring-under image buffer unit, which is bidirectionally connected to the ring-under data analysis unit.

4. The CT detection system of claim 1, wherein, The ring-over signal conversion device comprises an image instruction processing module and a trigger signal processing module. The image instruction processing module is connected between the CT slip ring and the detector, and is configured to transmit and analyze images and instructions between the CT slip ring and the detector. The trigger signal processing module is connected between the CT slip ring and the detector, and is configured to transmit and analyze trigger signals sent from the CT slip ring to the detector.

5. The CT detection system of claim 4, wherein, The image instruction processing module comprises a ring-over instruction unit, a ring-over image unit, a ring-over data analysis unit and a ring-over image instruction unit. The first end of the ring-over instruction unit is bidirectionally connected to the CT slip ring, and the second end is bidirectionally connected to the first end of the ring-over data analysis unit. The input end of the ring-over image unit is connected to the first end of the ring-over data analysis unit, and the output end is connected to the CT slip ring. The first end of the ring-over image instruction unit is bidirectionally connected to the second end of the ring-over data analysis unit, and the second end is bidirectionally connected to the detector.

6. The CT detection system of claim 5, wherein: The image instruction processing module further comprises a ring-over image buffer unit, which is bidirectionally connected to the ring-over data analysis unit.

7. The CT detection system of claim 4, wherein: The trigger signal processing module comprises a trigger signal receiving unit, a trigger signal processing unit and a trigger signal sending unit. The input end of the trigger signal receiving unit is connected to the CT slip ring, and the output end is connected to the input end of the trigger signal processing unit; the trigger signal receiving unit receives the trigger signal and transmits it to the trigger signal processing unit. The first output end of the trigger signal processing unit is connected to the input end of the trigger signal sending unit; the trigger signal processing unit analyzes the trigger signal and transmits it to the trigger signal sending unit. The output end of the trigger signal sending unit is connected to the detector; the trigger signal sending unit sends the trigger signal to the detector.

8. The CT detection system of claim 7, wherein: The trigger signal processing unit further comprises a second output end, the second output end of the trigger signal processing unit is connected with the image instruction processing module, and the parsed information of the trigger signal is transmitted to the image instruction processing module.

Images