WO2019090830A1 - Wireless transmission ct system, and wireless transmission method for ct system - Google Patents
Wireless transmission ct system, and wireless transmission method for ct system Download PDFInfo
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- WO2019090830A1 WO2019090830A1 PCT/CN2017/112335 CN2017112335W WO2019090830A1 WO 2019090830 A1 WO2019090830 A1 WO 2019090830A1 CN 2017112335 W CN2017112335 W CN 2017112335W WO 2019090830 A1 WO2019090830 A1 WO 2019090830A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
- A61B6/563—Details of data transmission or power supply, e.g. use of slip rings involving image data transmission via a network
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- the present invention relates to the field of medical devices, and more particularly to a wireless transmission CT system and a wireless transmission method of a CT system.
- CT Computerized Tomography
- a certain physical quantity such as wave speed, X-ray intensity, electron beam intensity, etc.
- Data using a certain mathematical method, through computer processing, reconstructing a two-dimensional image on a specific level of the detected object and a technique of constructing a three-dimensional image based on a series of the above two-dimensional images.
- the CT device mainly includes the following three parts: a scanning part, which includes an X-ray source, a detector and a gantry, and the X-ray source emits an X-ray beam to scan a layer of a certain thickness of a specific part of the object to be detected, and the detector receives and transmits The X-ray of the layer is converted into visible light, and further, the photoelectric converter converts visible light into an electrical signal, and the electrical signal is converted into a digital signal by an analog/digital converter; 2 a computer system that collects the collected portion Signal information data is calculated and stored; 3 image display and storage system displays images processed and reconstructed by a computer system on a television screen or images taken by multiple cameras or laser cameras (Jing Chi, Caiming Zhang.Optimization) Of Medical CT Data with High Precision [J]. Computer-Aided Design and Applications, 2013).
- the data transmission system is also an important part of CT.
- the data transmission mainly adopts the following methods:
- some CT products use a closed-loop small slip ring, which uses a small slip ring to set the instrument in the form of no through hole, thereby reducing the difficulty of data transmission of the slip ring under large diameter and high bandwidth, and avoiding The high-tech cost caused by the large-diameter slip ring, but due to the popularity of composite instruments such as PET/CT for animals, the closed-hole CT design will impose certain restrictions on PET dynamic scanning and gas-analysis.
- the motor is used to drive the sample to rotate, and the rotation of the sample is used to replace the rotation of the CT disc in the conventional CT, and the fixed disc is used to reduce the rotation.
- a slip ring is required for high-bandwidth data transmission, but there is still a certain degree of winding in the method, which interferes with signal transmission, reduces the signal-to-noise ratio, and reduces the life of data transmission and power transmission lines (Yanye, Lu Kun, Qiushi, Ren, An integrated quad-modality molecular imaging system for small animals [J], Journal of nuclear medicine: official publication, Society of Nuclear Medicine, 2014).
- An object of the present invention is to provide a wireless transmission CT system and a wireless transmission method of a CT system, thereby solving the problem that the CT system cannot balance data transmission quality and cost in the prior art.
- the technical solution of the present invention is to provide a wireless transmission CT system, the CT system includes a scanning module, and the scanning module includes an X-ray generator and a collimator. And an X-ray detector matched with the X-ray generator, the CT system further comprising: an industrial computer module, the industrial computer module comprising an industrial computer and a wireless transmission module, wherein the industrial computer is in communication with the X-ray detector
- the wireless transmitting module is communicably connected to the industrial computer;
- the slip ring and the mechanical control module, the slip ring and the mechanical control module comprise a slip ring and a mechanical control device, and the slip ring and the mechanical control device respectively
- An X-ray generator, the collimator, the X-ray detector, and the industrial computer module are electrically connected; and a main server module, the main server module including a main server and a wireless receiving module, the main server and The slip ring is communicatively connected, and the main server is communicably connected to the industrial computer module through the wireless
- the industrial computer is communicably connected to the X-ray detector by a Camera Link method.
- the wireless transmitting module is integrated with the industrial computer.
- the wireless transmitting module performs wireless transmission using WiFi, WIDI, WHDI, WIGig or ZigBee technology.
- the industrial computer is a computer, a single chip microcomputer, an ARM or an FPGA.
- the invention also provides a wireless transmission method of a CT system, the wireless transmission method comprising:
- Step S1 connecting the X-ray detector to the industrial computer, testing whether the industrial computer can obtain the data signal sent by the X-ray detector, and if so, proceeding to the next step;
- Step S2 connecting the wireless transmitting module of the industrial computer to the wireless receiving module of the primary server, and testing whether the connection is normal, detecting whether the primary server can obtain the data signal sent by the industrial computer, and if so, proceeding to the next step. ;
- Step S3 testing the connection between the primary server and the slip ring, and testing whether the slip ring can normally send a power signal, and if so, proceeding to the next step;
- Step S4 starting scanning the subject, the main server controls the disc motion of the CT system by using the slip ring and collects a data signal through the X-ray detector;
- Step S5 The scanning is completed, and the main server performs image reconstruction and display on the data signal.
- the X-ray detector and the industrial computer are connected by a Camera Link method.
- the wireless transmitting module of the industrial computer is connected to the wireless receiving module of the primary server in the same local area network.
- the wireless transmitting module performs wireless transmission using WiFi, WIDI, WHDI, WIGig or ZigBee technology.
- the industrial computer is a computer, a single chip microcomputer, an ARM or an FPGA.
- the wireless transmission CT system directly connects the X-ray detector to the industrial computer, and then wirelessly transmits the digital signal to the main server through the industrial computer for image reconstruction, and rejects the traditional technology using a large-diameter high-bandwidth optical fiber slip ring.
- the slip ring In the case of data transmission, only the slip ring is used for power signal transmission.
- the slip ring part Compared with the traditional animal CT and the industrial micro-CT, the slip ring part requires more than ten channels to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and Technical difficulty, and reduce the complexity of maintenance, the use of wireless technology in signal transmission, to ensure the integrity and effectiveness of data in the case of large data volumes.
- the wireless transmission method of the CT system provided by the invention passes the industrial computer as an intermediate step of data signal transmission, so that the slip ring only needs to transmit the power signal to the main server, compared with the sliding of the traditional animal CT and the industrial micro CT.
- the ring part requires more than ten channels to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and technical difficulty, and reduces the maintenance complexity.
- the use of wireless technology in the data signal transmission part ensures the integrity and validity of the data in the case of large data volumes.
- FIG. 1 is a schematic view showing the arrangement of a CT machine according to the prior art
- FIG. 2 is a schematic diagram showing the arrangement of a wireless transmission CT system according to an embodiment of the present invention
- FIG. 3 is a block diagram showing the structure of a wireless transmission CT system according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of connection and data transfer of an industrial computer of a wireless transmission CT system according to an embodiment of the present invention
- FIG. 5 is a schematic diagram showing the steps of a wireless transmission method of a CT system according to an embodiment of the present invention.
- a conventional CT machine generally includes two parts, a stationary part and a rotating part.
- the stationary part is provided with a control system and an image reconstruction system
- the rotating part is provided with X-ray generation.
- the device, the collimator, the corresponding detector and the data acquisition module, the X-rays emitted by the X-ray generator are received by the detector after passing through the imaging space, and the data acquisition module amplifies and converts the analog signal detected by the detector into a digital signal.
- the main server performs operations such as image reconstruction on digital signals.
- the data transmission module usually uses a high-bandwidth fiber slip ring for data transmission, and the power signal and the data signal are transmitted to the main server and processed by means of radio frequency coupling and infrared coupling.
- the CT system provided by the present invention includes a scanning module 10, an industrial computer module 20, a slip ring and a mechanical control module 30, and a main The server module 40, wherein the scanning module 10 includes an X-ray generator 11, a collimator 12, an X-ray detector 13, and other arrangements, and the X-ray generator 11, the collimator 12, and the X-ray detector 13 are all mounted on the CT.
- the structure and arrangement of the rotating part of the system are basically the same as those in the prior art, and will not be described here.
- the industrial computer module 20 includes the industrial computer 21 and the wireless transmitting module 22.
- the industrial computer 21 is installed in the rotating part of the CT system, specifically
- the industrial computer 21 can be installed in the CT ring of the rotating part of the CT system, and the industrial computer 21 is connected to the X-ray detector 13 to receive X through the Camera Link (Camera link standard is customized, modified, issued by the American Society of Automation Industry AIA).
- the detector signal detected by the ray detector 13 is connected to the industrial computer 21 by the wireless transmitting module 22.
- the wireless transmitting module 22 is integrated with the industrial computer 21; the slip ring and the mechanical mechanism
- the system module 30 includes a slip ring 31 and a mechanical control device.
- the diameter of the hole of the slip ring 31 can be determined by those skilled in the art according to the requirements of the CT system architecture, and is not limited herein.
- the mechanical control device includes a transmission device and a motor, and the motor can be based on the CT system.
- a component such as a stepping motor or a servo motor is required.
- the transmission device can be determined by a person skilled in the art according to the requirements of the CT system architecture, and is not limited herein.
- the main server module 40 includes a main server 41 and a wireless receiving module 42, and the wireless receiving module 42 and the wireless device.
- the sending module 22 is matched to receive the detector signal, and the main server 41 is communicably connected with the wireless receiving module 42 to connect with the slip ring and the mechanical control module 30 to receive the power signal according to the received detector signal.
- the main server 41 Image reconstruction, storage, display, output, and CT scan parameter settings and monitoring based on detector signals and power signals.
- the industrial computer 21 in the present invention is preferably an industrial computer with superior performance. Similar to a common computer, the industrial computer 21 needs to be equipped with a high-performance arithmetic processor, such as an intel I7-7700k or the like, and also needs to be equipped. High-speed solid-state drives, such as the SAMSUNG 850PRO SATA3 or high-speed SSDs of the same type, to ensure the speed and stability of data storage.
- the industrial computer 21 can also be a computer, a single chip microcomputer, an ARM (Acorn RISC Machine) or an FPGA (Field-Programmable Gate Array).
- the wireless transmitting module 22 can also be connected to the X-ray detector 13 through a common interface such as a Gige (Gigabit Ethernet) interface and a USB interface.
- the wireless transmitting module 22 can directly adopt the wireless network routing module of the industrial computer 21, using the wifi technology and the primary server.
- the wireless receiving module 42 on 41 matches the connection to complete high-speed and high-quality data transmission; the wireless transmitting module 22 can also adopt WIDI (Intel Wireless Display), WHDI (Wireless Home Digital Interface), WIGig (Wireless Gigabit) or ZigBee (a short-range wireless communication technology) technology for wireless transmission.
- WIDI Intel Wireless Display
- WHDI Wireless Home Digital Interface
- WIGig Wireless Gigabit
- ZigBee a short-range wireless communication technology
- the slip ring 31 of the present invention should be equipped with 3-6 power signal paths satisfying the requirements of 220-240V, 5-10A, 50-60Hz parameters, and the slip ring can also adopt a large-diameter fiber slip ring, and the slip ring only The power supply partial data is transmitted to the main server 41.
- the main server 41 and the wireless receiving module 42 in the present invention may be integrated into one, and the wireless receiving module 42 may use the wifi module to receive the probe data transmitted by the industrial computer 21.
- the connection and data transmission manner of the wireless transmission device of the CT system provided by the present invention is as follows.
- the X-ray generator (FIG. 2) disposed on the rotating portion is emitted.
- X-rays, X-rays pass through the imaging space or the subject placed in the imaging space, and the corresponding X-ray detector 13 disposed in the rotating portion also detects X-rays and forms a detection signal, and the X-ray detector 13 passes through the Camera Link interface.
- the industrial computer 21 is connected, and the industrial computer 21 includes a wireless transmitting module 22, a processor 23, a solid state hard disk storage 24, a graphics card 25, and other devices 26.
- the processor 23 receives the detection signal from the X-ray detector 13 and performs the detection signal.
- a series of processing such as amplification, integration, analog-to-digital conversion, etc. to convert the detection signal into a digital signal
- the solid-state hard disk storage 24 is used to store the digital signal processed by the processor 23, and the graphics card 25 is used to undertake the task of outputting the display graphic, and the digital signal is passed.
- Matched wireless transmitting module 22 and wireless connection The receiving module is sent to the main server 41.
- the slip ring 31 is connected to the main server 41 through a plurality of power signal paths satisfying the parameter requirements, and the power data of the components of the rotating portion is transmitted to the main server 41 through the power signal path, and the main server 41 is based on the received digital signal.
- power signal for image reconstruction, storage, display, output, and CT scan parameter settings and monitoring are examples of image reconstruction, storage, display, output, and CT scan parameter settings and monitoring.
- the wireless transmission CT system directly connects the X-ray detector to the industrial computer, and then wirelessly transmits the digital signal to the main server through the industrial computer for image reconstruction, and rejects the traditional technology using a large-diameter high-bandwidth optical fiber slip ring.
- the slip ring In the case of data transmission, only the slip ring is used for power signal transmission.
- the slip ring part Compared with the traditional animal CT and the industrial micro-CT, the slip ring part requires more than ten channels to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and Technical difficulty, and reduce the complexity of maintenance, the use of wireless technology in signal transmission, to ensure the integrity and effectiveness of data in the case of large data volumes.
- the invention mainly uses industrial computer technology in the data transmission and reconstruction stage, which is faster than the traditional slip ring mechanical technology, and will be more conducive to improving the data transmission speed and quality.
- the computer develops at a high speed. Will give CT hardware more space and be able to reduce costs more effectively.
- the wireless transmission method of the CT system provided by the present invention comprises the following steps:
- Step S1 connecting the X-ray detector to the industrial computer to test whether the industrial computer can obtain the data signal sent by the X-ray detector, and if so, proceed to the next step;
- Step S2 connecting the wireless transmitting module of the industrial computer to the wireless receiving module of the primary server, and testing whether the connection is normal, detecting whether the primary server can obtain the data signal sent by the industrial computer, and if so, proceeding to the next step;
- Step S3 testing the connection between the primary server and the slip ring, and testing whether the slip ring can normally send a power signal, and if so, proceeding to the next step;
- Step S4 starting to scan the subject, the main server controls the disc motion of the CT system by using the slip ring and collects the data signal through the X-ray detector;
- Step S5 The scanning is completed, and the main server performs image reconstruction and display on the data signal.
- the industrial computer can be connected to the display or remote control for operation, the X-ray detector and the industrial computer are connected by the Camera-Link method, and the industrial computer uses the matching image capturing software for testing, if normal When the data signal of the X-ray detector is collected, the X-ray detector is normally connected to the industrial computer.
- the main server and the industrial computer are connected in the same local area network by using the wireless transmitting module of the industrial computer, and the main server uses the data transmission software to test the transmission speed of the data signal.
- the packet loss rate ensures the high-speed and efficient transmission of the CT scan data signal from the industrial computer to the main server.
- step S3 the main server is connected to the main server by using a slip ring, and the main server tests whether a power signal is transmitted from the slip ring, and the power signal is transmitted normally, and then step S4 and step S5 are performed.
- the wireless transmission method of the CT system provided by the invention passes the industrial computer as an intermediate step of data signal transmission, so that the slip ring only needs to transmit the power signal to the main server, compared with the slip ring part of the traditional animal CT and industrial micro CT. More than ten channels are required to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and technical difficulty, and reduces the maintenance complexity.
- the use of wireless technology in the data signal transmission part ensures the integrity and validity of the data in the case of large data volumes.
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Abstract
A wireless transmission CT system, comprising an industrial control computer module (20), a sliding ring and mechanical control module (30) and a main server module (40), wherein the industrial control computer module (20) comprises an industrial control computer (21) and a wireless sending module (22), the industrial control computer (21) is in communication connection with an X-ray detector (13), and the wireless sending module (22) is in communication connection with the industrial control computer (21); and the sliding ring (31) is electrically connected to an X-ray generator (11), a collimator (12), the X-ray detector (13) and the industrial control computer module (20), a main server (41) is in communication connection with the sliding ring (31), and the main server (41) is also in communication connection with the industrial control computer module (20) by means of a wireless receiving module (42) matching the wireless sending module (22). The wireless transmission method comprises: connecting an X-ray detector (13) to an industrial control computer (21), and testing whether the connection is normal (S1); connecting a wireless sending module (22) of the industrial control computer (21) to a wireless receiving module (42) of a main server (41), and testing whether the connection is normal (S2); testing the connection between the main server (41) and a sliding ring (31) (S3); starting to scan a detected body (S4); and carrying out image reconstruction and display (S5). The wireless transmission CT system can complete data transmission of a CT system at high quality, and reduce the cost.
Description
本发明涉及医疗器械领域,更具体地涉及一种无线传输CT系统以及CT系统的无线传输方法。The present invention relates to the field of medical devices, and more particularly to a wireless transmission CT system and a wireless transmission method of a CT system.
CT(Computerized Tomography,计算机断层成像)是一种在不破坏被检测对象结构的前提下,根据被检测对象周边所获取的某种物理量(如波速、X射线光强、电子束强等)的投影数据,运用一定的数学方法,通过计算机处理,重建被检测对象特定层面上的二维图像以及依据一系列上述二维图像构成三维图像的技术。CT设备主要包括以下三个部分:①扫描部分,其包括X射线源、探测器和扫描架,X射线源发射X线束以对被检测对象具体部位一定厚度的层面进行扫描,探测器接收透过该层面的X线并将其转变为可见光,进一步由光电转换器将可见光转变为电信号,电信号再经模拟/数字转换器转为数字信号;②计算机系统,其将扫描部分收集到的数字信号信息数据进行运算、贮存;③图像显示和存储系统,其将经计算机系统处理、重建的图像显示在电视屏上或用多幅照相机或激光照相机将图像摄下(Jing Chi,Caiming Zhang.Optimization of Medical CT Data with High Precision[J].Computer-Aided Design and Applications,2013)。CT (Computerized Tomography) is a projection of a certain physical quantity (such as wave speed, X-ray intensity, electron beam intensity, etc.) acquired according to the periphery of the detected object without destroying the structure of the detected object. Data, using a certain mathematical method, through computer processing, reconstructing a two-dimensional image on a specific level of the detected object and a technique of constructing a three-dimensional image based on a series of the above two-dimensional images. The CT device mainly includes the following three parts: a scanning part, which includes an X-ray source, a detector and a gantry, and the X-ray source emits an X-ray beam to scan a layer of a certain thickness of a specific part of the object to be detected, and the detector receives and transmits The X-ray of the layer is converted into visible light, and further, the photoelectric converter converts visible light into an electrical signal, and the electrical signal is converted into a digital signal by an analog/digital converter; 2 a computer system that collects the collected portion Signal information data is calculated and stored; 3 image display and storage system displays images processed and reconstructed by a computer system on a television screen or images taken by multiple cameras or laser cameras (Jing Chi, Caiming Zhang.Optimization) Of Medical CT Data with High Precision [J]. Computer-Aided Design and Applications, 2013).
除此之外,由于CT处理过程中涉及大量信息数据,数据传输系统也是CT中重要的组成部分,对于现有的医用CT或者显微CT,其数据传输主要采取如下几种方式:In addition, due to the large amount of information data involved in the CT processing, the data transmission system is also an important part of CT. For the existing medical CT or micro-CT, the data transmission mainly adopts the following methods:
第一,现有的CT设计中大多仍使用滑环技术进行电源信号以及数据信号的传输,其中电源信号的传输仅需考虑电压以及功率,而数据信号的传输则对于光纤带宽要求较高,随着CT技术逐渐成熟以及多排CT等技术的普及,CT数据量急剧增大,从而对于滑环带宽的要求升高,比如,对于一定数量的动物用CT及工业显微CT,其滑环口径较大,由于数据量的加大,
对于数据传输的带宽要求逐渐提高,对于其使用的超过150mm的大口径光纤滑环,需要超过10个通道,总带宽超过1KMB的光纤通路,其技术制造成本及维护成本都相对较高。另外,滑环技术中对于光路的整洁性要求很高,细小的颗粒,灰尘等都会对信号的传输造成较大的影响。(李正祥,葛建新,CT技术发展中数据传输方式的探讨[J],中国医学装备,2011)。First, most of the existing CT designs still use the slip ring technology to transmit power signals and data signals. The transmission of power signals only needs to consider voltage and power, while the transmission of data signals requires higher bandwidth for optical fibers. With the gradual maturity of CT technology and the popularization of multi-row CT and other technologies, the amount of CT data has increased sharply, which has increased the requirements for the bandwidth of the slip ring. For example, for a certain number of animal CT and industrial micro-CT, the slip ring diameter Larger, due to the increase in the amount of data,
The bandwidth requirements for data transmission are gradually increasing. For large-diameter fiber-optic slip rings of more than 150 mm, more than 10 channels are required, and the fiber-optic path with a total bandwidth of more than 1 KMB has relatively high technical manufacturing cost and maintenance cost. In addition, in the slip ring technology, the neatness of the optical path is very high, and fine particles, dust, and the like may have a great influence on signal transmission. (Li Zhengxiang, Ge Jianxin, Discussion on Data Transmission Mode in the Development of CT Technology [J], China Medical Equipment, 2011).
第二,有些CT产品采用闭孔的小滑环,其利用较小的滑环,将仪器设置为无通孔的形式,从而降低了大口径、高带宽下的滑环数据传输难度,避免了大口径滑环造成的高技术成本,但由于动物用PET/CT等复合型仪器设备的普及,闭孔的CT设计会给PET动态扫描、气麻解决等带来一定的限制。Second, some CT products use a closed-loop small slip ring, which uses a small slip ring to set the instrument in the form of no through hole, thereby reducing the difficulty of data transmission of the slip ring under large diameter and high bandwidth, and avoiding The high-tech cost caused by the large-diameter slip ring, but due to the popularity of composite instruments such as PET/CT for animals, the closed-hole CT design will impose certain restrictions on PET dynamic scanning and gas-analysis.
第三,对于某些显微CT,其并不使用旋转圆盘,而是利用电动机带动样品旋转,用样品的旋转取代传统CT中CT圆盘的旋转,采用固定的圆盘以减少在旋转中需要使用滑环进行高带宽数据传输的方式,但该方法中仍然存在一定程度的绕线,对信号传输存在干扰,降低了信号信噪比,减少了数据传输与电源传输线的寿命(Yanye,Lu Kun,Qiushi,Ren,An integrated quad-modality molecular imaging system for small animals[J],Journal of nuclear medicine:official publication,Society of Nuclear Medicine,2014)。Third, for some micro-CTs, instead of using a rotating disc, the motor is used to drive the sample to rotate, and the rotation of the sample is used to replace the rotation of the CT disc in the conventional CT, and the fixed disc is used to reduce the rotation. A slip ring is required for high-bandwidth data transmission, but there is still a certain degree of winding in the method, which interferes with signal transmission, reduces the signal-to-noise ratio, and reduces the life of data transmission and power transmission lines (Yanye, Lu Kun, Qiushi, Ren, An integrated quad-modality molecular imaging system for small animals [J], Journal of nuclear medicine: official publication, Society of Nuclear Medicine, 2014).
综上所述,可以看出,如今的动物CT及工业显微CT设计中存在两种趋势,一种为继续采用大口径,高带宽的滑环进行电源信号以及数据信号的传输传导,但由于大口径光纤滑环的成本较高,维护难度较大,会极大的提高产品的开发成本;而另一种则是放弃使用大口径,高带宽的光纤滑环,采用小口径滑环或是旋转样本的方式,该方式可降低CT机在滑环部分的成本,但不通孔的设计会导致一定的动物实验以及工业检测的局限性,同时旋转样品的方法会在绕线等方面给数据传输带来干扰,降低数据信噪比。因此有必要开发一种兼具数据传输质量以及低成本的CT数据传输系统。In summary, it can be seen that there are two trends in today's animal CT and industrial micro-CT design, one is to continue to use large-diameter, high-bandwidth slip ring for power signal and data signal transmission, but because Large-caliber fiber-optic slip rings are costly and difficult to maintain, which greatly increases product development costs. The other is to abandon the use of large-diameter, high-bandwidth fiber-optic slip rings with small-diameter slip rings or The method of rotating the sample, which can reduce the cost of the CT machine in the slip ring part, but the design of the non-through hole will lead to certain animal experiments and industrial detection limitations, and the method of rotating the sample will transmit data in the aspect of winding and the like. Bring interference and reduce data signal to noise ratio. Therefore, it is necessary to develop a CT data transmission system that combines data transmission quality and low cost.
发明内容Summary of the invention
本发明的目的是提供一种无线传输CT系统以及CT系统的无线传输方法,从而解决现有技术中CT系统不能兼顾数据传输质量和成本的问题。An object of the present invention is to provide a wireless transmission CT system and a wireless transmission method of a CT system, thereby solving the problem that the CT system cannot balance data transmission quality and cost in the prior art.
为了解决上述技术问题,本发明的技术方案是提供一种无线传输CT系统,该CT系统包括扫描模块,所述扫描模块包括X射线发生器、准直器以
及与X射线发生器匹配的X射线探测器,所述CT系统还包括:工控机模块,所述工控机模块包括工控机以及无线发送模块,所述工控机与所述X射线探测器通信连接,所述无线发送模块与所述工控机通信连接;滑环及机械控制模块,所述滑环及机械控制模块包括滑环以及机械控制设备,所述滑环与所述机械控制设备分别与所述X射线发生器、所述准直器、所述X射线探测器以及所述工控机模块电连接;以及主服务器模块,所述主服务器模块包括主服务器以及无线接收模块,所述主服务器与所述滑环通信连接,所述主服务器同时通过与所述无线发送模块匹配的所述无线接收模块与所述工控机模块通信连接。In order to solve the above technical problem, the technical solution of the present invention is to provide a wireless transmission CT system, the CT system includes a scanning module, and the scanning module includes an X-ray generator and a collimator.
And an X-ray detector matched with the X-ray generator, the CT system further comprising: an industrial computer module, the industrial computer module comprising an industrial computer and a wireless transmission module, wherein the industrial computer is in communication with the X-ray detector The wireless transmitting module is communicably connected to the industrial computer; the slip ring and the mechanical control module, the slip ring and the mechanical control module comprise a slip ring and a mechanical control device, and the slip ring and the mechanical control device respectively An X-ray generator, the collimator, the X-ray detector, and the industrial computer module are electrically connected; and a main server module, the main server module including a main server and a wireless receiving module, the main server and The slip ring is communicatively connected, and the main server is communicably connected to the industrial computer module through the wireless receiving module that is matched with the wireless sending module.
根据本发明的一个实施例,所述工控机通过Camera Link方式与所述X射线探测器通信连接。According to an embodiment of the invention, the industrial computer is communicably connected to the X-ray detector by a Camera Link method.
根据本发明的一个实施例,所述无线发送模块与所述工控机集成为一体。According to an embodiment of the invention, the wireless transmitting module is integrated with the industrial computer.
根据本发明的一个实施例,所述无线发送模块采用WiFi、WIDI、WHDI、WIGig或者ZigBee技术进行无线传输。According to an embodiment of the invention, the wireless transmitting module performs wireless transmission using WiFi, WIDI, WHDI, WIGig or ZigBee technology.
根据本发明的一个实施例,所述工控机为计算机、单片机、ARM或者FPGA。According to an embodiment of the invention, the industrial computer is a computer, a single chip microcomputer, an ARM or an FPGA.
本发明还提供一种CT系统的无线传输方法,该无线传输方法包括:The invention also provides a wireless transmission method of a CT system, the wireless transmission method comprising:
步骤S1:将X射线探测器与工控机连接,测试所述工控机是否能够获得所述X射线探测器发送的数据信号,若能则进行下一步;Step S1: connecting the X-ray detector to the industrial computer, testing whether the industrial computer can obtain the data signal sent by the X-ray detector, and if so, proceeding to the next step;
步骤S2:将所述工控机的无线发送模块与主服务器的无线接收模块连接,并测试连接是否正常,检测所述主服务器能否获取所述工控机发送的数据信号,若能则进行下一步;Step S2: connecting the wireless transmitting module of the industrial computer to the wireless receiving module of the primary server, and testing whether the connection is normal, detecting whether the primary server can obtain the data signal sent by the industrial computer, and if so, proceeding to the next step. ;
步骤S3:测试所述主服务器与滑环的连接,并测试所述滑环能否正常发送电源信号,若能则进行下一步;Step S3: testing the connection between the primary server and the slip ring, and testing whether the slip ring can normally send a power signal, and if so, proceeding to the next step;
步骤S4:开始对受检体进行扫描,所述主服务器利用所述滑环控制所述CT系统的圆盘运动并通过所述X射线探测器采集数据信号;Step S4: starting scanning the subject, the main server controls the disc motion of the CT system by using the slip ring and collects a data signal through the X-ray detector;
步骤S5:扫描完成,所述主服务器对数据信号进行图像重建及显示。
Step S5: The scanning is completed, and the main server performs image reconstruction and display on the data signal.
根据本发明的一个实施例,在所述步骤S1中,所述X射线探测器与所述工控机采用Camera Link方式连接。According to an embodiment of the invention, in the step S1, the X-ray detector and the industrial computer are connected by a Camera Link method.
根据本发明的一个实施例,在所述步骤S2中,所述工控机的无线发送模块与所述主服务器的无线接收模块连接在同一局域网内。According to an embodiment of the present invention, in the step S2, the wireless transmitting module of the industrial computer is connected to the wireless receiving module of the primary server in the same local area network.
根据本发明的一个实施例,所述无线发送模块采用WiFi、WIDI、WHDI、WIGig或者ZigBee技术进行无线传输。According to an embodiment of the invention, the wireless transmitting module performs wireless transmission using WiFi, WIDI, WHDI, WIGig or ZigBee technology.
根据本发明的一个实施例,所述工控机为计算机、单片机、ARM或者FPGA。According to an embodiment of the invention, the industrial computer is a computer, a single chip microcomputer, an ARM or an FPGA.
本发明提供的无线传输CT系统,将X射线探测器直接连接至工控机,再通过工控机将数字信号无线传输到主服务器进行图像重建,摒弃了传统技术中使用大口径高带宽光纤滑环进行数据传输的情况,仅使用滑环进行电源信号的传输,相比传统动物CT及工业显微CT的滑环部分需要十余个通道传输大于1KMB带宽的探测器数据,极大的减少了成本以及技术难度,并减少了维护方面的复杂度,在信号传输中利用无线技术,保证了大数据量情况下数据的完整性及有效性。同时,本发明提供的CT系统的无线传输方法,通过工控机作为数据信号传输的中间步骤,使得滑环只需要对主服务器进行电源信号的传输,相比传统动物CT及工业显微CT的滑环部分需要十余个通道传输大于1KMB带宽的探测器数据,极大的减少了成本以及技术难度,并减少了维护方面的复杂度。在数据信号传输部分利用无线技术,保证了大数据量情况下数据的完整性及有效性。The wireless transmission CT system provided by the invention directly connects the X-ray detector to the industrial computer, and then wirelessly transmits the digital signal to the main server through the industrial computer for image reconstruction, and rejects the traditional technology using a large-diameter high-bandwidth optical fiber slip ring. In the case of data transmission, only the slip ring is used for power signal transmission. Compared with the traditional animal CT and the industrial micro-CT, the slip ring part requires more than ten channels to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and Technical difficulty, and reduce the complexity of maintenance, the use of wireless technology in signal transmission, to ensure the integrity and effectiveness of data in the case of large data volumes. At the same time, the wireless transmission method of the CT system provided by the invention passes the industrial computer as an intermediate step of data signal transmission, so that the slip ring only needs to transmit the power signal to the main server, compared with the sliding of the traditional animal CT and the industrial micro CT. The ring part requires more than ten channels to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and technical difficulty, and reduces the maintenance complexity. The use of wireless technology in the data signal transmission part ensures the integrity and validity of the data in the case of large data volumes.
图1是根据现有技术的CT机的布置示意图;1 is a schematic view showing the arrangement of a CT machine according to the prior art;
图2是根据本发明的一个实施例的无线传输CT系统的布置示意图;2 is a schematic diagram showing the arrangement of a wireless transmission CT system according to an embodiment of the present invention;
图3是根据本发明的一个实施例的无线传输CT系统的模块结构示意图;3 is a block diagram showing the structure of a wireless transmission CT system according to an embodiment of the present invention;
图4是根据本发明的一个实施例的无线传输CT系统的工控机的连接及数据传递示意图;4 is a schematic diagram of connection and data transfer of an industrial computer of a wireless transmission CT system according to an embodiment of the present invention;
图5是根据本发明的一个实施例的CT系统的无线传输方法的步骤示意图。
FIG. 5 is a schematic diagram showing the steps of a wireless transmission method of a CT system according to an embodiment of the present invention.
以下结合具体实施例,对本发明做进一步说明。应理解,以下实施例仅用于说明本发明而非用于限制本发明的范围。The invention will be further described below in conjunction with specific embodiments. It is to be understood that the following examples are merely illustrative of the invention and are not intended to limit the scope of the invention.
图1为根据现有技术的CT机的布置示意图,由图1可知,传统的CT机通常包括静止和旋转两个部分,静止部分设置有控制系统以及图像重建系统,旋转部分设置有X射线发生器、准直器、相应的探测器以及数据采集模块,X射线发生器发射的X射线经过成像空间后被探测器接收,数据采集模块将探测器探测到的模拟信号放大并转换为数字信号,主服务器对数字信号进行图像重建等操作。在传统的医用CT或者工业显微CT中,数据传输模块通常采用高带宽的光纤滑环进行数据传输,将电源信号及数据信号利用射频耦合、红外耦合等方式发送至主服务器并进行处理。1 is a schematic view showing the arrangement of a CT machine according to the prior art. As can be seen from FIG. 1, a conventional CT machine generally includes two parts, a stationary part and a rotating part. The stationary part is provided with a control system and an image reconstruction system, and the rotating part is provided with X-ray generation. The device, the collimator, the corresponding detector and the data acquisition module, the X-rays emitted by the X-ray generator are received by the detector after passing through the imaging space, and the data acquisition module amplifies and converts the analog signal detected by the detector into a digital signal. The main server performs operations such as image reconstruction on digital signals. In the traditional medical CT or industrial micro-CT, the data transmission module usually uses a high-bandwidth fiber slip ring for data transmission, and the power signal and the data signal are transmitted to the main server and processed by means of radio frequency coupling and infrared coupling.
本发明摒弃了利用光纤滑环进行数据信号传输的传统方式,如图2和图3所示,本发明提供的CT系统包括扫描模块10、工控机模块20、滑环及机械控制模块30以及主服务器模块40,其中,扫描模块10包括X射线发生器11、准直器12、X射线探测器13以及其它设置,X射线发生器11、准直器12、X射线探测器13均安装于CT系统的旋转部分,其结构及布置基本与现有技术中一致,在此不再赘述;工控机模块20包括工控机21、无线发送模块22,工控机21安装于CT系统的旋转部分,具体地,工控机21可安装于CT系统旋转部分的CT圆环中,工控机21通过Camera Link(Camera link标准由美国自动化工业学会AIA定制、修改、发布)方式与X射线探测器13连接以接收X射线探测器13所检测到的探测器信号,无线发送模块22与工控机21通信连接,优选地,无线发送模块22与工控机21集成为一体;滑环及机械控制模块30包括滑环31以及机械控制装置,滑环31的孔直径可根据CT系统架构要求由本领域技术人员确定,在此不作限制;机械控制设备包括传动设备及电机,电机可根据CT系统的需要选用步进电机或者伺服电机等组件,传动设备可根据CT系统架构要求由本领域技术人员确定,在此不作限制;主服务器模块40包括主服务器41以及无线接收模块42,无线接收模块42与无线发送模块22匹配以接收探测器信号,主服务器41与无线接收模块42通信连接以根据接收到的探测器信号,主服务器41还与滑环及机械控制模块30连接以接收电源信号,主服务器41根据探测器信号及电源信号进行图像重建、存储、显示、输出以及CT扫描参数的设定和监控。
The present invention discards the conventional manner of using the optical fiber slip ring for data signal transmission. As shown in FIG. 2 and FIG. 3, the CT system provided by the present invention includes a scanning module 10, an industrial computer module 20, a slip ring and a mechanical control module 30, and a main The server module 40, wherein the scanning module 10 includes an X-ray generator 11, a collimator 12, an X-ray detector 13, and other arrangements, and the X-ray generator 11, the collimator 12, and the X-ray detector 13 are all mounted on the CT. The structure and arrangement of the rotating part of the system are basically the same as those in the prior art, and will not be described here. The industrial computer module 20 includes the industrial computer 21 and the wireless transmitting module 22. The industrial computer 21 is installed in the rotating part of the CT system, specifically The industrial computer 21 can be installed in the CT ring of the rotating part of the CT system, and the industrial computer 21 is connected to the X-ray detector 13 to receive X through the Camera Link (Camera link standard is customized, modified, issued by the American Society of Automation Industry AIA). The detector signal detected by the ray detector 13 is connected to the industrial computer 21 by the wireless transmitting module 22. Preferably, the wireless transmitting module 22 is integrated with the industrial computer 21; the slip ring and the mechanical mechanism The system module 30 includes a slip ring 31 and a mechanical control device. The diameter of the hole of the slip ring 31 can be determined by those skilled in the art according to the requirements of the CT system architecture, and is not limited herein. The mechanical control device includes a transmission device and a motor, and the motor can be based on the CT system. A component such as a stepping motor or a servo motor is required. The transmission device can be determined by a person skilled in the art according to the requirements of the CT system architecture, and is not limited herein. The main server module 40 includes a main server 41 and a wireless receiving module 42, and the wireless receiving module 42 and the wireless device. The sending module 22 is matched to receive the detector signal, and the main server 41 is communicably connected with the wireless receiving module 42 to connect with the slip ring and the mechanical control module 30 to receive the power signal according to the received detector signal. The main server 41 Image reconstruction, storage, display, output, and CT scan parameter settings and monitoring based on detector signals and power signals.
更具体地,由于工控机模块20安装于CT圆环中,需要对CT圆环增加对应的配重设计,以保证其旋转的稳定性,这属于本领域技术人员容易实现的技术手段,在此不再赘述。More specifically, since the industrial computer module 20 is installed in the CT ring, it is necessary to add a corresponding weight design to the CT ring to ensure the stability of the rotation, which is a technical means easily realized by those skilled in the art. No longer.
本发明中的工控机21优选地为性能优越的工业计算机,与常用计算机类似,工控机21需要配备高性能的运算处理器,比如优于intel I7-7700k或者同类的运算处理器,还需要配备高速固态硬盘,比如优于SAMSUNG 850PRO SATA3或者同类性能的高速固态硬盘,从而保证数据存储的速度和稳定性。工控机21还可采用计算机、单片机、ARM(Acorn RISC Machine,处理器)或者FPGA(Field-Programmable Gate Array,现场可编程门阵列)等。无线发送模块22还可通过Gige(Gigabit Ethernet)接口、USB接口等常见的接口与X射线探测器13连接,无线发送模块22可直接采用工控机21的无线网路由模块,使用wifi技术与主服务器41上的无线接收模块42匹配连接以完成高速且高质量的数据传输;无线发送模块22还可采用WIDI(Intel Wireless Display,无线高清技术)、WHDI(Wireless Home Digital Interface,无线家庭数字接口)、WIGig(Wireless Gigabit,无线千兆比特)或者ZigBee(一种短距离无线通信技术)技术进行无线传输。The industrial computer 21 in the present invention is preferably an industrial computer with superior performance. Similar to a common computer, the industrial computer 21 needs to be equipped with a high-performance arithmetic processor, such as an intel I7-7700k or the like, and also needs to be equipped. High-speed solid-state drives, such as the SAMSUNG 850PRO SATA3 or high-speed SSDs of the same type, to ensure the speed and stability of data storage. The industrial computer 21 can also be a computer, a single chip microcomputer, an ARM (Acorn RISC Machine) or an FPGA (Field-Programmable Gate Array). The wireless transmitting module 22 can also be connected to the X-ray detector 13 through a common interface such as a Gige (Gigabit Ethernet) interface and a USB interface. The wireless transmitting module 22 can directly adopt the wireless network routing module of the industrial computer 21, using the wifi technology and the primary server. The wireless receiving module 42 on 41 matches the connection to complete high-speed and high-quality data transmission; the wireless transmitting module 22 can also adopt WIDI (Intel Wireless Display), WHDI (Wireless Home Digital Interface), WIGig (Wireless Gigabit) or ZigBee (a short-range wireless communication technology) technology for wireless transmission.
进一步地,本发明中的滑环31中应配备3-6条满足220-240V、5-10A、50-60Hz参数要求的电源信号通路,滑环可同样采用大口径光纤滑环,滑环仅向主服务器41传输电源部分数据。Further, the slip ring 31 of the present invention should be equipped with 3-6 power signal paths satisfying the requirements of 220-240V, 5-10A, 50-60Hz parameters, and the slip ring can also adopt a large-diameter fiber slip ring, and the slip ring only The power supply partial data is transmitted to the main server 41.
本发明中的主服务器41和无线接收模块42可集成为一体,无线接收模块42可使用wifi模块以接收工控机21发送的探测数据。The main server 41 and the wireless receiving module 42 in the present invention may be integrated into one, and the wireless receiving module 42 may use the wifi module to receive the probe data transmitted by the industrial computer 21.
更具体地,如图4所示,本发明提供的CT系统的无线传输装置的连接及数据传输方式如下,在CT系统的成像过程中,旋转部分上设置的X射线发生器(图2)发出X射线,X射线穿过成像空间或者成像空间中放置的受检体,同样设置在旋转部分的对应的X射线探测器13探测X射线并形成探测信号,X射线探测器13通过Camera Link接口与工控机21连接,工控机21包括无线发送模块22、处理器23、固态硬盘存储24、显卡25以及其它设备26,处理器23接收来自于X射线探测器13的探测信号,并对探测信号进行放大、积分、模数转换等一系列处理以将探测信号转换为数字信号,固态硬盘存储24用于存储经过处理器23处理的数字信号,显卡25用于承担输出显示图形的任务,数字信号通过匹配的无线发送模块22以及无线接
收模块发送至主服务器41。另一方面,滑环31通过若干个满足参数要求的电源信号通路与主服务器41连接,旋转部分的各部件的电源数据通过电源信号通路发送至主服务器41,主服务器41根据接收到的数字信号和电源信号进行图像重建、存储、显示、输出以及CT扫描参数的设定和监控。More specifically, as shown in FIG. 4, the connection and data transmission manner of the wireless transmission device of the CT system provided by the present invention is as follows. In the imaging process of the CT system, the X-ray generator (FIG. 2) disposed on the rotating portion is emitted. X-rays, X-rays pass through the imaging space or the subject placed in the imaging space, and the corresponding X-ray detector 13 disposed in the rotating portion also detects X-rays and forms a detection signal, and the X-ray detector 13 passes through the Camera Link interface. The industrial computer 21 is connected, and the industrial computer 21 includes a wireless transmitting module 22, a processor 23, a solid state hard disk storage 24, a graphics card 25, and other devices 26. The processor 23 receives the detection signal from the X-ray detector 13 and performs the detection signal. A series of processing such as amplification, integration, analog-to-digital conversion, etc. to convert the detection signal into a digital signal, the solid-state hard disk storage 24 is used to store the digital signal processed by the processor 23, and the graphics card 25 is used to undertake the task of outputting the display graphic, and the digital signal is passed. Matched wireless transmitting module 22 and wireless connection
The receiving module is sent to the main server 41. On the other hand, the slip ring 31 is connected to the main server 41 through a plurality of power signal paths satisfying the parameter requirements, and the power data of the components of the rotating portion is transmitted to the main server 41 through the power signal path, and the main server 41 is based on the received digital signal. And power signal for image reconstruction, storage, display, output, and CT scan parameter settings and monitoring.
本发明提供的无线传输CT系统,将X射线探测器直接连接至工控机,再通过工控机将数字信号无线传输到主服务器进行图像重建,摒弃了传统技术中使用大口径高带宽光纤滑环进行数据传输的情况,仅使用滑环进行电源信号的传输,相比传统动物CT及工业显微CT的滑环部分需要十余个通道传输大于1KMB带宽的探测器数据,极大的减少了成本以及技术难度,并减少了维护方面的复杂度,在信号传输中利用无线技术,保证了大数据量情况下数据的完整性及有效性。同时,本发明在数据传输和重建阶段,主要使用工业计算机技术,相比于传统的滑环机械技术,发展更快,将更有利于提高数据传输速度与质量,根据摩尔定律,计算机的高速发展将给予CT硬件更大的空间,并能够更有效地降低成本。The wireless transmission CT system provided by the invention directly connects the X-ray detector to the industrial computer, and then wirelessly transmits the digital signal to the main server through the industrial computer for image reconstruction, and rejects the traditional technology using a large-diameter high-bandwidth optical fiber slip ring. In the case of data transmission, only the slip ring is used for power signal transmission. Compared with the traditional animal CT and the industrial micro-CT, the slip ring part requires more than ten channels to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and Technical difficulty, and reduce the complexity of maintenance, the use of wireless technology in signal transmission, to ensure the integrity and effectiveness of data in the case of large data volumes. At the same time, the invention mainly uses industrial computer technology in the data transmission and reconstruction stage, which is faster than the traditional slip ring mechanical technology, and will be more conducive to improving the data transmission speed and quality. According to Moore's Law, the computer develops at a high speed. Will give CT hardware more space and be able to reduce costs more effectively.
本发明提供的CT系统的无线传输方法,包括以下步骤:The wireless transmission method of the CT system provided by the present invention comprises the following steps:
步骤S1:将X射线探测器与工控机连接,测试工控机是否能够获得X射线探测器发送的数据信号,若能则进行下一步;Step S1: connecting the X-ray detector to the industrial computer to test whether the industrial computer can obtain the data signal sent by the X-ray detector, and if so, proceed to the next step;
步骤S2:将工控机的无线发送模块与主服务器的无线接收模块连接,并测试连接是否正常,检测主服务器能否获取工控机发送的数据信号,若能则进行下一步;Step S2: connecting the wireless transmitting module of the industrial computer to the wireless receiving module of the primary server, and testing whether the connection is normal, detecting whether the primary server can obtain the data signal sent by the industrial computer, and if so, proceeding to the next step;
步骤S3:测试主服务器与滑环的连接,并测试滑环能否正常发送电源信号,若能则进行下一步;Step S3: testing the connection between the primary server and the slip ring, and testing whether the slip ring can normally send a power signal, and if so, proceeding to the next step;
步骤S4:开始对受检体进行扫描,主服务器利用滑环控制CT系统的圆盘运动并通过X射线探测器采集数据信号;Step S4: starting to scan the subject, the main server controls the disc motion of the CT system by using the slip ring and collects the data signal through the X-ray detector;
步骤S5:扫描完成,主服务器对数据信号进行图像重建及显示。Step S5: The scanning is completed, and the main server performs image reconstruction and display on the data signal.
更具体地,在上述步骤S1中,工控机可连接显示器或远程控制进行操作,X射线探测器与工控机采用Camera-Link方式进行连接,工控机利用配套的图像捕捉软件进行测试,若能正常采集X射线探测器的数据信号,则X射线探测器与工控机连接正常。More specifically, in the above step S1, the industrial computer can be connected to the display or remote control for operation, the X-ray detector and the industrial computer are connected by the Camera-Link method, and the industrial computer uses the matching image capturing software for testing, if normal When the data signal of the X-ray detector is collected, the X-ray detector is normally connected to the industrial computer.
在上述步骤S2中,使用工控机的无线发送模块将主服务器与工控机连接在同一局域网内,主服务器利用数据传输软件测试数据信号的传输速度以
及丢包率,可保证CT扫描的数据信号从工控机到主服务器的高速有效传输。In the above step S2, the main server and the industrial computer are connected in the same local area network by using the wireless transmitting module of the industrial computer, and the main server uses the data transmission software to test the transmission speed of the data signal.
And the packet loss rate ensures the high-speed and efficient transmission of the CT scan data signal from the industrial computer to the main server.
在上述步骤S3中,利用滑环与主服务器连接,主服务器测试是否有电源信号自滑环传入,电源信号传输正常后方可进行步骤S4及步骤S5。In the above step S3, the main server is connected to the main server by using a slip ring, and the main server tests whether a power signal is transmitted from the slip ring, and the power signal is transmitted normally, and then step S4 and step S5 are performed.
值得注意的是,本发明提供的CT系统的无线传输方法中使用的部件与本发明提供的无线传输CT系统的部件相同,在此不再赘述。It is to be noted that the components used in the wireless transmission method of the CT system provided by the present invention are the same as those of the wireless transmission CT system provided by the present invention, and are not described herein again.
本发明提供的CT系统的无线传输方法,通过工控机作为数据信号传输的中间步骤,使得滑环只需要对主服务器进行电源信号的传输,相比传统动物CT及工业显微CT的滑环部分需要十余个通道传输大于1KMB带宽的探测器数据,极大的减少了成本以及技术难度,并减少了维护方面的复杂度。在数据信号传输部分利用无线技术,保证了大数据量情况下数据的完整性及有效性。The wireless transmission method of the CT system provided by the invention passes the industrial computer as an intermediate step of data signal transmission, so that the slip ring only needs to transmit the power signal to the main server, compared with the slip ring part of the traditional animal CT and industrial micro CT. More than ten channels are required to transmit detector data larger than 1KMB bandwidth, which greatly reduces the cost and technical difficulty, and reduces the maintenance complexity. The use of wireless technology in the data signal transmission part ensures the integrity and validity of the data in the case of large data volumes.
以上所述的,仅为本发明的较佳实施例,并非用以限定本发明的范围,本发明的上述实施例还可以做出各种变化。即凡是依据本发明申请的权利要求书及说明书内容所作的简单、等效变化与修饰,皆落入本发明专利的权利要求保护范围。本发明未详尽描述的均为常规技术内容。
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and various modifications may be made to the above-described embodiments of the present invention. That is, the simple and equivalent changes and modifications made in the claims and the contents of the specification of the present invention fall within the scope of the claims of the present invention. What has not been described in detail in the present invention are all conventional technical contents.
Claims (10)
- 一种无线传输CT系统,所述无线传输CT系统包括扫描模块,所述扫描模块包括X射线发生器、准直器以及与X射线发生器匹配的X射线探测器,其特征在于,所述无线传输CT系统还包括:A wireless transmission CT system, the wireless transmission CT system comprising a scanning module, the scanning module comprising an X-ray generator, a collimator, and an X-ray detector matched with the X-ray generator, wherein the wireless The transmission CT system also includes:工控机模块,所述工控机模块包括工控机以及无线发送模块,所述工控机与所述X射线探测器通信连接,所述无线发送模块与所述工控机通信连接;The industrial computer module includes an industrial computer and a wireless transmission module, and the industrial computer is communicably connected to the X-ray detector, and the wireless transmission module is communicably connected with the industrial computer;滑环及机械控制模块,所述滑环及机械控制模块包括滑环以及机械控制设备,所述滑环与所述机械控制设备分别与所述X射线发生器、所述准直器、所述X射线探测器以及所述工控机模块电连接;以及a slip ring and a mechanical control module, the slip ring and the mechanical control module comprising a slip ring and a mechanical control device, the slip ring and the mechanical control device respectively with the X-ray generator, the collimator, the An X-ray detector and the industrial computer module are electrically connected;主服务器模块,所述主服务器模块包括主服务器以及无线接收模块,所述主服务器与所述滑环通信连接,所述主服务器同时通过与所述无线发送模块匹配的所述无线接收模块与所述工控机模块通信连接。a main server module, the main server module includes a main server and a wireless receiving module, wherein the main server is communicably connected to the slip ring, and the main server simultaneously passes the wireless receiving module and the matching with the wireless sending module The industrial computer module communication connection is described.
- 根据权利要求1所述的无线传输CT系统,其特征在于,所述工控机通过Camera Link方式与所述X射线探测器通信连接。The wireless transmission CT system according to claim 1, wherein the industrial computer is communicably connected to the X-ray detector by a Camera Link method.
- 根据权利要求1所述的无线传输CT系统,其特征在于,所述无线发送模块与所述工控机集成为一体。The wireless transmission CT system according to claim 1, wherein the wireless transmission module is integrated with the industrial computer.
- 根据权利要求1所述的无线传输CT系统,其特征在于,所述无线发送模块采用WiFi、无线高清技术、无线家庭数字接口、无线千兆比特或者ZigBee技术进行无线传输。The wireless transmission CT system according to claim 1, wherein the wireless transmission module performs wireless transmission using WiFi, wireless high-definition technology, wireless home digital interface, wireless gigabit or ZigBee technology.
- 根据权利要求1所述的无线传输CT系统,其特征在于,所述工控机为计算机、单片机、ARM处理器或者FPGA。The wireless transmission CT system according to claim 1, wherein the industrial computer is a computer, a single chip microcomputer, an ARM processor or an FPGA.
- 一种CT系统的无线传输方法,其特征在于,所述无线传输方法包括:A wireless transmission method for a CT system, characterized in that the wireless transmission method comprises:步骤S1:将X射线探测器与工控机连接,测试所述工控机是否能够获得所述X射线探测器发送的数据信号,若能则进行下一步;Step S1: connecting the X-ray detector to the industrial computer, testing whether the industrial computer can obtain the data signal sent by the X-ray detector, and if so, proceeding to the next step;步骤S2:将所述工控机的无线发送模块与主服务器的无线接收模块连 接,并测试连接是否正常,检测所述主服务器能否获取所述工控机发送的数据信号,若能则进行下一步;Step S2: connecting the wireless transmitting module of the industrial computer with the wireless receiving module of the primary server And detecting whether the connection is normal, detecting whether the primary server can obtain the data signal sent by the industrial computer, and if so, proceeding to the next step;步骤S3:测试所述主服务器与滑环的连接,并测试所述滑环能否正常发送电源信号,若能则进行下一步;Step S3: testing the connection between the primary server and the slip ring, and testing whether the slip ring can normally send a power signal, and if so, proceeding to the next step;步骤S4:开始对受检体进行扫描,所述主服务器利用所述滑环控制所述CT系统的圆盘运动并通过所述X射线探测器采集数据信号;Step S4: starting scanning the subject, the main server controls the disc motion of the CT system by using the slip ring and collects a data signal through the X-ray detector;步骤S5:扫描完成,所述主服务器对数据信号进行图像重建及显示。Step S5: The scanning is completed, and the main server performs image reconstruction and display on the data signal.
- 根据权利要求6所述的CT系统的无线传输方法,其特征在于,在所述步骤S1中,所述X射线探测器与所述工控机采用Camera Link方式连接。The wireless transmission method of the CT system according to claim 6, wherein in the step S1, the X-ray detector and the industrial computer are connected by a Camera Link method.
- 根据权利要求6所述的CT系统的无线传输方法,其特征在于,在所述步骤S2中,所述工控机的无线发送模块与所述主服务器的无线接收模块连接在同一局域网内。The wireless transmission method of the CT system according to claim 6, wherein in the step S2, the wireless transmitting module of the industrial computer is connected to the wireless receiving module of the primary server in the same local area network.
- 根据权利要求6所述的CT系统的无线传输方法,其特征在于,所述无线发送模块采用WiFi、无线高清技术、无线家庭数字接口、无线千兆比特或者ZigBee技术进行无线传输。The wireless transmission method of the CT system according to claim 6, wherein the wireless transmission module performs wireless transmission using WiFi, wireless high-definition technology, wireless home digital interface, wireless gigabit or ZigBee technology.
- 根据权利要求6所述的CT系统的无线传输方法,其特征在于,所述工控机为计算机、单片机、ARM处理器或者FPGA。 The wireless transmission method of the CT system according to claim 6, wherein the industrial computer is a computer, a single chip microcomputer, an ARM processor or an FPGA.
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090180595A1 (en) * | 2008-01-11 | 2009-07-16 | Siemens Medical Solutions Usa, Inc. | Mechanically Flexible X-ray Imaging System |
CN104665861A (en) * | 2014-12-30 | 2015-06-03 | 中国科学院苏州生物医学工程技术研究所 | Mobile CT (computed tomography) scanner system |
CN105232076A (en) * | 2015-09-28 | 2016-01-13 | 中国科学院苏州生物医学工程技术研究所 | Small-sized bedside CT (computed tomography) scanner |
US20160235387A1 (en) * | 2015-02-17 | 2016-08-18 | General Electric Company | Wireless data transfer in a deterministic rotating system |
CN106667518A (en) * | 2016-12-26 | 2017-05-17 | 中国科学院苏州生物医学工程技术研究所 | Cage type ct scanner |
CN106725543A (en) * | 2016-12-09 | 2017-05-31 | 中央军委后勤保障部卫生局药品仪器检验所 | Portable digital X-ray apparatus |
CN106859868A (en) * | 2016-12-26 | 2017-06-20 | 中国科学院苏州生物医学工程技术研究所 | Multifunctional digital X ray image shelter |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5982844A (en) * | 1997-10-10 | 1999-11-09 | Analogic Corporation | Computed tomography scanner drive system and bearing |
CN101732059A (en) * | 2008-11-21 | 2010-06-16 | Ge医疗系统环球技术有限公司 | CT scanning equipment |
CN201844984U (en) * | 2010-06-21 | 2011-05-25 | 中国石油天然气集团公司 | Digital ray detecting system for weld joint of pipeline ring |
CN208114598U (en) * | 2017-11-10 | 2018-11-20 | 苏州瑞派宁科技有限公司 | A kind of wireless transmission CT system |
-
2017
- 2017-11-10 CN CN201711100892.2A patent/CN107669290A/en active Pending
- 2017-11-22 WO PCT/CN2017/112335 patent/WO2019090830A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090180595A1 (en) * | 2008-01-11 | 2009-07-16 | Siemens Medical Solutions Usa, Inc. | Mechanically Flexible X-ray Imaging System |
CN104665861A (en) * | 2014-12-30 | 2015-06-03 | 中国科学院苏州生物医学工程技术研究所 | Mobile CT (computed tomography) scanner system |
US20160235387A1 (en) * | 2015-02-17 | 2016-08-18 | General Electric Company | Wireless data transfer in a deterministic rotating system |
CN105232076A (en) * | 2015-09-28 | 2016-01-13 | 中国科学院苏州生物医学工程技术研究所 | Small-sized bedside CT (computed tomography) scanner |
CN106725543A (en) * | 2016-12-09 | 2017-05-31 | 中央军委后勤保障部卫生局药品仪器检验所 | Portable digital X-ray apparatus |
CN106667518A (en) * | 2016-12-26 | 2017-05-17 | 中国科学院苏州生物医学工程技术研究所 | Cage type ct scanner |
CN106859868A (en) * | 2016-12-26 | 2017-06-20 | 中国科学院苏州生物医学工程技术研究所 | Multifunctional digital X ray image shelter |
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